Showing posts with label Sjogren's Syndrome. Show all posts
Showing posts with label Sjogren's Syndrome. Show all posts

Tuesday, 26 October 2021

From Sjogren's to Leaky Gut to Menière's to Labyrinthitis - a proposed theory





I have come across a few published articles that cover the high incidence of systemic autoimmune diseases in patient's with Menière's Disease, for example [1, 2], but I always wondered if the other way around could also be a possibility. I mean, one of the health disturbing aspects I have seen reported in Sjogren's patients has to do with events of labyrinthitis (inflammation of part of the inner ear) or pressure put in the inner ear by a very inflamed parotid gland that can trigger vestibular disturbance (i.e., related to the inner ear and sense of balance). However, since Sjogren's is so intrinsically related to metabolism and diet, I have also learned of the nefarious effects caused by certain foods and beverages in a patient's balance, vestibular 'equilibrium' and an impaired digestive tract.

It is easy to establish a chain of consequences that is potentially triggered at any point of the affected physiological system, one that in a healthy person can be counteracted and re-established to normality, but that in an autoimmune one will have to be compensated with potential biological actions that can, on their own, eventually initiate particular imbalances elsewhere in the system. 

However, autoimmunity (where Sjogren's sits as a syndrome) appears to be quite associated with Menière's disease (a pathophysiology marked by vertigo, tinnitus, high pressure felt at the inner ear, and in grave cases even resulting in hearing impairment) [1]. Menière's can play episodically through events usually marked by inflammation at an associated contiguous point, even resulting in potential bilateral vestibular hypofunction (in the worst scenarios). But just as Sjogren's syndrome, also Menière's disease is a chronic condition, hence persistent and recurrent, where the associated vertigo episodes can last from a only a few minutes to excruciating long hours. Now imagine the impact on the performing of regular activities such as driving, operating machinery, walking, etc.

Where some doctors might immediately resort to prescribing prochlorperazine maleate or any other typical phenothiazine indicated for severe nausea, from a personal perspective a patient must also learn how to identify the triggers that typically promote the onset of such vestibular disturbance. In different examples to me presented, I had the chance to read that this can be very closely associated to dietary options alongside the typical promoters, such as stress, anxiety, opportunistic viral infections that take advantage of structurally-compromised tissues, and the consumption of desiccants (such as alcohol, spicy foods, etc.).

Add to all this the still quite abstract concept of leaky gut, a disorder that has not yet been fully clinically accepted and medically characterised, but one that it is thought to involve cracks in the intestinal tissue that will allow the passage of unexpected macromolecules to the blood stream... molecules that due to their size, composition and complexity were not supposed to be allowed in the circulatory system, and that will, therefore, promote physiological disturbance. It is extremely difficult to find literature to support the idea of a leaky gut, but the same people who have been blaming gluten for several metabolic and physiological ailments have now turned (no personal judgement here at all!) to the idea of a leaky gut - as the portal to disarray. From within a list of supposed complications one can identify the multifactorial Menière's disease [3]. And considering what the authors also debate, i.e., "that patients often complain of aspecific gastrointestinal symptoms associated with autonomic dysregulation, frequently outweighed by the otological manifestations", a recurrent cycle of afflictions is theoretically hereby established.


In a way, and as suggested in the image that I have edited and enclosed in the post, the metabolic dietary stressors will trigger a reinforced imbalanced immune response, that is already appanage of an autoimmune disease patient. However, in association with a debilitated gastrointestinal mucosa, be it in the stomach (as it occurs typically with reflux or H. pylori infections, for example) or at the intestinal tissue, the molecules unexpectedly absorbed into the bloodstream will add to the inflammatory dynamics and  this will potentially increase the implications of ongoing inflammation at the vestibular domain. Ergo, making the vestibular tissues even more vulnerable to opportunistic viral infections, and affecting the profile of the naturally-occurring crystals in the inner ear's liquids (the endolymph and perilymph), consequently affecting the audiovestibular moiety, adding to the incidence and seriousness of the reported "dizziness, generalised, imbalance, ataxia, motion intolerance, positional vertigo, oscillopsia, and episodic vertigo" [2].


In that sense, it is my personal belief that dietary changes need to account for the supposed 'leakiness' of the gut, and might be able to help reduce (not cure!!!) the episodic occurrence of inflammation that affects equilibrium in an autoimmune patient. What do you have to say about it? Does it sound feasible?

[1] Gazquez, I., Soto-Varela, A., Aran, I. et al (2011). "High Prevalence of Systemic Autoimmune Diseases in Patients with Menière's Disease". PLoS One, 6(10): e26759.

[2] Girasoli, L., Cazzador, D., Padoan, R et al. (2018). "Autoimmunity and Otolaryngology Diseases - Update on Vertigo in Autoimmune Disorders, from Diagnosis to Treatment".  Journal of Immunology Research, pp. 1-16.

[3] Berardino, F., Zanetti, D., Ciusani, E. et al (2018). "Intestinal permeability and Ménière's disease". Am J Otolaryngol, 39(2), pp. 153-156.

Original post photo by Omid Armin on Unsplash

Thursday, 19 November 2020

Did you know that ...

 

Altmetric is a tool that allows you to collect and collate research information spread out in the web using a really helpful interface that provides you information on how your own research is seen by others. This is a very useful tool for those scholars who publish, for investigators and even institutions, those who provide grants and those are involved in R&D. Finally a tool that makes all engage in the same platform whilst compiling relevant and useful data on their investigational projects. More information HERE.


Chronic fatigue in Sjogren's syndrome patients - it is known that chronic fatigue in patients dealing with Sjogren's syndrome is probably one of the most invisible debilitating traits of this set of 'diseases'. But a recent article has shed some new light on an agent that interferes with the immunological response and consequently on fatigue, the vagus nerve, that can be used to modulate the immune responses, and with the help of an electronic device, the noninvasive gammaCore. Initial results on a small number of female patients observed positive changes to the profile of fatigue and on the Epworth sleepiness scale (used to diagnose obstructive sleep apnoea) [1]. Reduction in these profiles were also accompanied by significant reduction in the presence of inflammation factors such as IL-6, IL-1β, IP-10, MIP-1α, and TNFα. More information HERE.


Free Resources for Science Pictures - Do you have a blog? Do you participate in a videocast? Are you writing a monograph, essay or any science piece of work that could use some visual attractiveness? Do you need science images but don't really have the money to pay for it. Well, this is the place where you have to go to. This platform suggests 7 places containing high-quality scientific research images that one can access and use at will. From figures, to micrographs, plots and diagrams the images available at the recommended sites will save one hours of unnecessary drawing up. More information HERE.


First Universal Flu Vaccine -  Now that the eyes of the world are layed upon the recent announcement of a vaccine to counteract the sars-cov-2 disease (covid-19), we nearly forgot that there are still numerous 'bugs', prions and viruses out there, roaming at will, looking for an opportunity to prevail. Influenza is just as such one of these and the research for a universal vaccine to prevent flu has been a long standing project. But in 2018 it was announced that the seasonal flu would meet a new defense guard, one that could even protect us against a emerging influenza mutation and avoid a pandemic. Approximately 20 years took these researchers to get to the phase III clinical trial stage where a new complex substance that induces immunity to the less varying parts of the virus (the core of the virus we would say), is to be tested on hundreds, or possibly thousands of human subjects. Knowing that the Influenza virus is made of two surface glycoproteins: hemagglutinin (aiding cellular access to host's moiety), and neuramidase (aiding the spread through), the new pipeline vaccine - BiondVax’s M-001 - will not focus on generating antibodies against the highly variable head of the virus, but instead focusing on producing an immune response against the stalk (a more conserved fragment in the viral structure). In fact, this project is so well advanced and scientifically robust that the researchers are also looking into adjuvants (substances that can aid the primary product work better in an improved fashion). On tof the adjuvants is called TRAC-478 and stimulates several toll-like receptors (TLRs) on antigen-presenting cells; the other one is known as TRAC-478 and can help the body recognise both bacterial and viral infections in a synergistic operation [2]. More information HERE.


The Language of Biosimilars - Have you ever heard of biosimilars? Have you ever been prescribed one? Well, to ignite your responses let us look briefly into what a biosimilar medical product is. A Biosimilar Medical product is a biological medicine considered highly similar to yet another already approved biological medicine (that for that matter is known as the 'reference medicine') and that are approved/licensed with exact the same standards of pharmaceutical quality, safety and efficacy that is applied to all biological medicines. In fact the same agency, meaning the European Medicines Agency (EMA) is the one body, in Europe, responsible for evaluating most of the applications to market biosimilars in the European Union (EU).

The active substances found in biosimilars, meaning the molecules that are indeed expected to do the trick and help cure the problem, are often purified proteins obtained from other living cells or organisms, such as animals, plants, or even smaller ones (microorganisms). The process of protein purification enhances the quality content of the product so the product can be used safely in responding to clinical needs usually related to chronic conditions.  

Confused? Biologic drugs are large, complex proteins, they are 'manufactured' from living cells in extremely complex manufacturing ways; but they are not what we know these days as generics. Roughly said, Generics are 'copy-paste' copies of chemical drugs where as Biosimilars are copies of a biologic medicine that is similar, but not identical, to the original medicine.

Considering that biologics are usually quite large 'protein' molecules with complex structures, biosimilars cannot be considered generic equivalents to these. Instead they are products developed and assessed for their efficacy and safety based on very rigorous processes that study their specific function in different steps of a clinical trial set to confirm similar efficacy and safety. These studies are not performed, or should not naturally be, to show clinical prevalence of these products. [2]


[1] Epworth sleepiness scale - Obstricive Sleep Apnoea (OSA), British Lung Foundation, [https://www.blf.org.uk/support-for-you/obstructive-sleep-apnoea-osa/diagnosis/epworth-sleepiness-scale], last access on the 19th of November 2020, last update on May 2016.

[2] Declerck, P., Danesi, R., Jacobs, I. (2017). "The language of biosimilars: Calrifications, Definitions, And Regulatory Aspects. Drugs, 77, pp. 671-677.

Friday, 16 August 2019

On Natural Anti-Emetics

Last July I posted on audiovestibular symptoms, not exclusively but also related to Sjogren's syndrome, and anti-emetics/balance therapy as an aid for fixing balance and nausea issues. The post was very insightful and deserves a revisiting HERE. In any case I had promised to look a bit deeper on natural anti-emetics since anti-emetic drugs trigger secondary effects more frequently than natural products. These can be used as a good approach to correct developed symptoms arising from audiovestibular complications. Before we proceed, a very important disclaimer: If you or anyone you know is going through any medical event that can relate to the information hereby shared, please do not take such information as medical advice. The current post, as any other post in The Toxicologist Today blog is purely for scientific information; exclusively to the use of the reader in growing a better knowledge of the science surrounding the different debated topics. This information does not intend to support any clinical or medical decision, but to enhance your capacity to discuss scientific topics based on real scientific publications/references.

What are anti-emetics?

Anti-emetics are substances that can prevent or arrest nausea and emesis (vomiting). They can be classified into different pharmaceutical types. Drugs falling within this category should only be prescribed when the underlying reasons for nausea and vomiting are known, otherwise their action could be masking more serious conditions that can develop in the background with no adequate diagnosis conducted. The range of secondary effects that are known to occur when taking anti-emetics are non-extensively listed in a very good post by Medical News Today (Access HERE). [1].

Different pharmaceuticals (e.g., antihistamines, phenothiazines, Bismuth-subsalicylate, cannabinoids, corticosteroids, dopamine receptor blockers, NK1 receptor blockers, serotonin receptor blockers, etc) are specifically indicated according to the causation (aetiology) of the condition, but its use can be followed by different secondary effects. For a lengthier look into the different treatment possibilities you can visit NICE's page on the matter that contains excellent content (access HERE) [2]. 

Some of these products are used for controlling post-surgery symptoms. Others address 'simpler' cases like gastroenteritis, or for counteracting sickness in pregnancy due to, for example, certain endocrine levels in the female body. Some other products are intended to counteract iatrogenic nausea and vomiting urges that are related to the use of immunomodulatory drugs (as it is the case in chemotherapy treatments).

How do anti-emetics work?

Very simply put they basically block certain neurotransmitters (like serotonin receptor blockers and dopamine receptor blockers, for example) found in the body and that are related to the triggering of nausea and vomiting impulses.




What natural anti-emetics are available?

Ginger (Zingiber officinale) is a root known for holding very potent anti-emetic properties and does not lack scientific support of its capacity to reduce nausea in different scenarios, such as in pregnancy [3],  prophylaxis in day case surgery [4], in the reduction of nausea and mild emesis induced by chemotherapy [5].

Peppermint (Mentha piperita, spicata) inhalation/aromatherapy is believed to possess anti-emetic properties when tested against postoperative nausea or chemotherapy-induced nausea, however some authors think it might be more related to the assumed breathing patterns rather than the inhaled substance itself [6] or that the herb should be used as an adjunct prophylactic rather than the principal therapy [7] [8].

Cinnamon (Cinnamomum zeylanicum) has also been pointed as showing anti-emetic properties when compared to known synthetic drugs [9], and especially on systemic symptoms associated to menstrual bleeding, that do account for the possibility of nausea and vomiting [10].


[1] What are the best ways to get rid of nausea, Medical News Today, [https://www.medicalnewstoday.com/articles/320877.php], Last visited on the 16-Aug-2019, last updated on the 10th of February 2018.

[2] Nausea and Labyrinth Disorders, NICE National Institute for Health and Care Excellence, [https://bnf.nice.org.uk/treatment-summary/nausea-and-labyrinth-disorders.html], last visited on the 16th of August 2019, last update unknown.

[3] Viljoen, E., Visser, J., Koen, N. et al (2014). "A systematic review and meta-analysis of the effect and safety of ginger in the treatment of pregnancy-associated nausea and vomiting". Nutrition Journal, 13 (20), pp. 2-14.

[4] Phillips, S., Ruggier, R., Hutchinson, S. E. (1993). "Zingiber officinale (Ginger)–an antiemetic for day case surgery". Anaesthesia, 48, pp. 715-717.

[5] Sontakke, S., Thawani, V., Naik, M. S. (2003). "Ginger as an antiemetic in nausea and vomiting induced by chemotherapy: a randomized, cross-over, double blind study". Indian Journal of Pharmacology, 35, pp. 32-36.  

[6] Lynn, A., Anderson, R. N., Gross, J. B. et al (2003). "Aromatherapy with peppermint, isopropyl alcohol, or placebo is equally effective in relieving postoperative nausea". Journal of PeriAnesthesia Nursing, 19 (1), pp. 29-35.

[7] Lane, B., Cannella, K., Bowen, C.  (2011). "Examination of the Effectiveness of Peppermint Aromatherapy on Nausea in Women Post C-Section ". Journal of Holistic Nursing, 30(2), pp. 90-104.

[8] Tayarani-Najaran,Z., Talasaz-Firoozi, E., Nasiri, R., et al (2013). "Antiemetic activity of volatile oil from Mentha spicata and Mentha × piperita in chemotherapy-induced nausea and vomiting". Ecancermedicalscience. 7 (290).


[9] Khan, I. A., Aziz, A., Sarwar, H. S. (2014). "Evaluation of antiemetic potential of aqueous bark extract of cinnamon". Canadian journal of applied sciences, 4(1), pp. 26-32.

[10] Jaafarpour, M., Hatefi, M., Najafi, F. et al (2015). "The Effect of Cinnamon on Menstrual Bleeding and Systemic Symptoms With Primary Dysmenorrhea". Iran Red Crescent Med J., 17(4).

1st image Caglar Araz on Unsplash

2nd image by Dominik Martin on Unsplash

Wednesday, 17 July 2019

Audiovestibular symptoms, Balance Therapy and Sjogren's Syndrome

The impact of Primary Sjogren's syndrome (PSS) on a patient's health and quality of life can be tremendous. Some people end up changing not only their life styles, read Venus Williams' example [1], as well as their professional careers or the way their perform professionally, again and to a certain extent, Venus Williams. Some symptoms associated with autoimmune diseases are quite devastating and can drive the body immune responses to lengths that are known to be quite compromising to the physiological system itself. Other issues are mild, moderate, temporary, infrequent or just somewhat annoying. But one known affliction related to autoimmune diseases and that is also quite present in roughly 22 to 46% [2] of Sjogren's syndrome patients is the involvement of audiovestibular symptoms. These can derive in severity and result in compromising lack of balance, vertigo, nausea, dizziness or even, in some more grave cases, chronic audiovestibular neuronitis.

There are many factors that do participate in the sense of lacking balance, prevalence of vertigo, occurrence of nausea and dizziness. And well before your healthcare professional can assume there is something affecting your inner ear fluid, a battery of blood and urine tests might be requested to rule out certain deficiencies or health issues that indeed also, directly or indirectly, promote/generate the aforementioned symptoms. Multiple components can participate in triggering audiovestibular symptoms; take for example lack of vitamin B12 [3] that indirectly promote audiovestibular imbalance due to possibility of pernicious anaemia, paraesthesia, the umbrella 'ataxia' set of conditions that is comprised by lack of balance, coordination and speech. Also the calcium-vitamin D bridge for vitamin D is involved in the regulation of calcium and phosphorus in the human body for maintaining adequate bone structure, but ultimately is also recognised as a risk factor in idiopathic benign paroxysmal positional vertigo [4] [5]. Also and for example, peaks of hypertension (increased blood pressure) might eventually reveal the presence of underlying audiovestibular symptoms [6], even though high blood pressure (recognised as a silent killer) is known to be generally asymptomatic. And even endocrine factors can contribute to these audiovestibular aspects.

Before all PSS patients deliver themselves to tears of commiseration with the possibility of yet another serious health affliction, it is important to understand that these tend to have a higher prevalence of sensorineural hearing loss (SNHL) in comparison to the general population [2], HOWEVER there aren't presently reports of damage to the central auditory pathways that I know. In the past, bilateral progressive SNHL in PSS would be treated with steroids and cytotoxic treatments [7], but I suspect nowadays clinicians are ever more aware of the possible presence of macroglia/macrophages in the inner ear of these patients, and treatments are likely to be progressing towards addressing the presence of such resident cochlear inflammatory macrophages.

When audiovestibular symptoms blossom, due to a chronic condition, it is very well possible that the inner ear will be compromised and permit entry to viral and bacterial agents. On its own a chronic condition can sensitise the spaces/vesicles/glands where bodily fluids sit, but it can also wear out the tissues that viral and bacterial infections may use to proliferate at. In that instance chronic vestibular neunorinits or infection of the vestibular nerve in the inner ear can potentiate more serious vertigo, severe lack of balance and grave dizziness symptoms as a result of chronic inflammation. 

In all cases, be it mild or severe, visiting a healthcare professional is important for a good assessment on the causes that originate such afflictions. Where in more serious cases the clinical approach may consider prescribed medication with anti-emetics, anti-inflammatories and other products to control deriving situations, simpler cases can be resolved with two basic yet crucial measures, i.e., 1) the use of natural anti-emetics alongside natural anti-inflammatories, that for a viral infection and in time, will improve the patient's condition; 2) balance therapy (a specialised form of physiotherapy to alleviate primary and secondary problems that derive from vestibular disorders).


Natural anti-emetics and Balance Therapy:

Synthetic anti-emetics are known to potentiate, in some cases, a range of secondary effects that put people off using these products. Hence, natural plants with anti-emetic properties gain more relevance. For the sake of conciseness I won't be adding hereby any information on the several natural anti-emetics available in the market, leaving it for a subsequent post with depth on their method of action and on their nature. However, if you'd like to learn more about balance therapy for vestibular rehabilitation, there are so many different good sources of exercises that it was difficult for me to summarise in a simple paragraph how these can potentiate your recovery. I leave you with a few options for judgement according to your school of thought. Just visit the links and ask your doctor which he/she would consider the best alternative treatment for your specific case. In any case, rest assured that a future post will review how effective balance therapy can be, and also the promised post on the available natural anti-emetics. 

Vestibular Rehabilitation Exercises by the Brain And Spine Foundation ACCESS HERE.

Vestibular Rehabilitation Exercises by the Northern Lincolnshire and Goole NHS Foundation Trust ACCESS HERE.

Basic Vestibular Rehabilitation Exercises by Salisbury NHS Foundation Trust ACCESS HERE.

Disclaimer: All links were functional as of 17th of July 2019. However, these are pages maintained by third-parties so I have no responsibility whatsoever on their content and functionality.


Before I go and if you want to know more about vestibular neuronitis there is a very good NHS page where relevant patient information is tremendously well summarised [8].


[1] This Drastic Diet Change Helped Venus Williams Fight Her Autoimmune Condition, Health, [https://www.health.com/nutrition/venus-williams-raw-vegan-diet], last visited on the 17th of July 2019, last update on the 18th of March 2019.

[2] Ralli, M., D’Aguanno, V., Di Stadio, A. et al (2018). "Review Article: Audiovestibular Symptoms in Systemic Autoimmune Diseases". Journal of Immunology Research, 18(1), pp. 1-14.

[3] Healton, E. B., Savage, D. G., Brust, J. C. (1991). "Neurologic aspects of cobalamin deficiency". Europe PMC, 70(4), pp. 229-245.

[4] Jeong, S-H., Kim, J-S., Shin, J-W. et al (2013). "Decreased serum vitamin D in idiopathic benign paroxysmal positional vertigo". Journal of Neurology, 260(3), pp. 832–838.

[5] Talaat, H.S., Kabel, A-M. H., Khaliel, L. H. et al (2015). "Reduction of recurrence rate of benign paroxysmal positional vertigo by treatment of severe vitamin D deficiency". Auris Nasus Larynx, 43(3), pp. 237-241.

[6] Esparza, C. M., K. Jáuregui‐Renaud, K., Morelos, C. M. C. et al (2007). "Systemic high blood pressure and inner ear dysfunction: a preliminary study". Clinical Otolaryngology, 32(3), pp. 173-178.

[7] McCabe, B. F. (1979). “Autoimmune sensorineural hearing loss”. The Annals of Otology, Rhinology, and Laryngology, 88 (5), pp. 585–589.

[8] Vestibular neuronitis, NHS, [https://www.nhs.uk/conditions/vestibular-neuronitis/], last visited on the 17th of July 2019, last update on the 23rd of June 2016.

Post image by Guilherme Stecanella from Unsplash.

Tuesday, 11 June 2019

A Dry Market With Plenty of Fertile Opportunities

In this modern day and time, where pharmaceutical innovation is in/extensively driven towards patient-centric approaches and broad range product promoting, it is almost impossible to find an overlooked yet fertile niche market. Nevertheless, there is still one out there that presents a wide array of opportunities for integrated research teams working synergistically with clinicians - Dry Eye Disease (DED) is still an area where patients are treated with conventional therapies delivering quite limited practical results. If we consider that 1 of 3 people over the age of 65 is diagnosed with dry eye disease [1], and that the population in the UK amounts to about 66 million people where 18% are over the age of 65, we can consider that approximately 11,880,000 patients in the UK alone are still waiting for the newest dry eye panacea. In addition, in the United States of America, dry eye disease currently affects 17% of the total population with 15 to 33% being over the age of 65 [2].

The numbers are out there to be savoured and analysed, and that is what the members of the TFOS DEWS Management Therapy Subcommittee have been doing with the publication of their Management and Therapy Report. This is a much focused insightful disease state publication emerging after their interactive workshops on DED and their expert conferences on Tear Film and Ocular Surface (TFOS). Their latest publication [3] inform us of how unaddressed, despite so many peculiar innovations and niche approaches, this medical issue is. Nevertheless, countless solutions are being developed, although overshadowed by a major limitation, i.e., no product has yet fully responded to the multiplicity of comorbidities DED revels on.

Products developed to tackle DED are usually linked to treatments for tear insufficiency, for lid abnormalities, anti-inflammatory therapies, surgical approaches and even dietary/environmental considerations. It still remains impossible to find one single product that is effectively producing the desired ‘holistic’ results. Over-the-counter tear replacement products with ocular lubricants are purely palliative, hence populating pharmacies out there without resolving the primary pathophysiology of DED. Use of punctal occlusion therapies developed to temporarily or permanently retain tears on the ocular surface by stalling their drainage, is controversial, as it is linked to promotion of inflammation by prolonging the retention of pro-inflammatory cytokines [4] [5]. Several tear stimulation pharmacologic agents are commercially available or still under pipeline development, but these only usually address stimulation of aqueous, mucin and/or lipid secretion whilst ignoring the underlying issues related to meibomian and lacrimal gland disorders.  Treatments for lid abnormalities have long existed and actually a simple lid hygiene routine can help avoid the occurrence of a variety of lid conditions that trigger DED (e.g., blepharitis – inflammation of the edges of the eyelids). In this case, no pharmaceutical product is as effective as lid scrubs soaked in a mild dilution of baby shampoo applied with  a cotton bud/swab to inhibit upsurge of associated lipolytic bacteria [6] [7] [8] [9]. And finally, anti-inflammatory products like topical glucocorticoids, known to be highly effective in halting immune response cycles, also live up to their infamous reputation of hypertension/cataracts/opportunistic infection developers, if used for a long time [10].

The miracle agent may unexpectedly reside in a coadjuvant biological matrix that has been recently applied to ocular surface disease. This matrix has been used as a contact lens-based device emerging from a birth discarded bioproduct, i.e., amniotic membrane. In fact, two specific products ‘threaten’ to become big names in the Ocular Surface industry (one from the USA and one from the UK) that for the sake of privacy will not be disclosed hereby. These products are delivering revolutionary results even in moderate cases of ocular surface chemical/thermal burns. The revolution is happening, and it is just a matter of time until the industry delivers the one product successfully responding to the multiple comorbidities associated to DED.

Post Photo by Andrew Santellan on Unsplash.

[1] Dry eye syndrome, National Institute for Health and Care Excellence, [https://cks.nice.org.uk/dry-eye-syndrome#!topicSummary], last visited on the 11th of June 2019, last update on August 2017.

[2] Dry Eye Syndrome PPP 2018, American Academy of Ophtalmology, [https://www.aao.org/preferred-practice-pattern/dry-eye-syndrome-ppp-2018], last visited on the 11th of June 2019, last update on November 2018.

[3] Jones, L., Downie, L. E., Korb, D. et al. (2017). "TFOS DEWS II Management and Therapy Report". The Ocular Surface, 15(3), pp. 575-628.

[4] Wang, Y., Dogru, M., Matsumoto, Y., 2007). "The Impact of Nasal Conjunctivochalasis on Tear Functions and Ocular Surface Findings". American Journal of Ophthalmology, 144(6), pp. 930-937.

[5] Erdogan-Poyraz, C., Mocan, M. C., Bozkurt, B. et al (2009). "Elevated Tear Interleukin-6 and Interleukin-8 Levels in Patients With Conjunctivochalasis". Cornea, 28(2), pp. 189-193.

[6] McCulley, J., Dougherty, J. M., Deneau, D. G. (1982). "Classification of Chronic Blepharitis". Ophthalmology, 89(10), pp. 1173-1180.

[7] Geerling, G., Tauber, J., Baudoun, C. et al (2011). "The International Workshop on Meibomian Gland Dysfunction: Report of the Subcommittee on Management and Treatment of Meibomian Gland Dysfunction". IOVS, 52, pp. 2050-2064.

[8] Romero, J., Biser, S., Perry, H. et al (2004). "Conservative Treatment of Meibomian Gland Dysfunction". Eye & Contact Lens: Science & Clinical Practice, 30(1), pp. 14-19.

[9] Alghamdi, Y. A., Camp, A., Feuer, W., Karp, C. L. et al (2018). "Compliance and subjective patient responses to eyelid hygiene". Eye Contact Lens, 43(4), pp. 213217.

[10] Marsh, P. and Pflugfelder, C. (1999), "Topical nonpreserved methylprednisolone therapy for keratoconjunctivitis sicca in Sjögren syndrome". Ophthalmology, 106(4), pp. 811-816.

Wednesday, 13 March 2019

On the benefits of cold showers to the immune system - Final Assessment

Four months ago I changed my daily routine tremendously by adding a morning shock strategy to my physical system. After four months of not missing out on my procedures and with disciplined dedication in using myself as subject to my tests, I have finally achieved a point where I can compile an adequate interpretation. Nevertheless, due to limited time and measuring tools/practices, the ASTONISHING results obtained can only be considered anecdotal. However, even if they were entirely placebo, the matter of fact is that I have COMPLETELY resolved three big limitations my Sjogren's Syndrome was still upsetting me with.

What am I talking about?

Remember when back in November 2018 I wrote the very first post on how a daily cold shower therapy had improved tremendously on my energy levels (that due to my Sjogren's was to an extent debilitating and impacted on my quality of life), especially after 6 PM? If you don't, please check the original post HERE. In reality, Sjogren's Syndrome patients state tiredness/fatigue, nausea and reduced alertness has three of the commonest symptoms affecting their daily performance. For me, personally, alertness has never been a problem. However, for a person like myself that has always played football and exercised to a great level, the limitations imposed by Sjogren's on my energy levels were tremendously. Add to that the fact that I am the father of two very young children who extract from me the fuel my reservoir must contain to actively participate in their growth, education and well-being. 

After reading and watching so much about the Wim Hoff Method, I designed my own strategy soon after consulting additional literature on immune system modulation, by means of shock thermal therapy. The initial results vaguely reported this last November 2018 were impressive, as my strategy had resulted perfectly. Driven by such incredible results, I decided to go the extra mile and defined a more dedicated program that helped me achieve even more incredible ones.

What was the objective?

My uttermost objective was to reduce or eliminate tiredness and fatigue I was reporting on a daily basis, especially after 6 PM and that were occurring regardless of my metabolic discipline and dietary constraints.

In what consisted my personal program?

One must know itself and understand to what limits one's body can be taken without generating iatrogenic effects that can be detrimental to one's health, and that might also contradict the improvement desired. In that sense, for about two/three weeks in November 2019 I had been following the Wim Hoff Method by applying his breathing methodology followed by a warm shower (with the duration of 5 minutes) and finally a shocking cold shower for no longer than 25 seconds (in the first three days), 60 seconds (in the following 3 days) and then 90 seconds thereafter. Even though some of the literature states the duration of the applied cold shower does not impact in the outcome [1], I had my doubts. In that sense I decided to gradually increase length of exposure to cold as it would also allow me to stay committed and learn with my own limitations, as I gained experience. 

By then, and after three weeks I was a rejuvenated man. No kidding!!! I felt extremely energetic on a daily basis and the intense fatigue and tiredness I was going through in the evening was no more.

My current personal program:

However, I wanted to be sure that the extremely impressive results I had gone through weren't just a hype of the moment. So I decided to carry this program for an additional 3 months in order to better understand its impact. In addition, because the breathing part wasn't something I could be so dedicated to, on a daily basis, due to domestic and work obligations that regularly force me to very limited available time, I decided to abandon the breathing part and focus entirely on the cold shower therapy. Thus, I simplified the protocol to something that can be applied by any Sjogren's patient at home; nevertheless please bear this disclaimer in mind, it is important to be aware of your medical condition (especially cardiovascular issues) and to be sure that at all times you are either supervised or help's at reach, especially at an initial stage. I do not advocate what I have achieved, as medical treatment. This is a personal discovery that HAS CHANGED MY LIFE!

Everyday I take a warm shower for about four minutes (with soap and all that jazz involved). Right after I take a freezing cold shower for an additional two minutes by starting gradually by my feet, going up the legs, then hips, torso and head. It takes me 30 seconds to get to the head. That basically means all my body will be completely 'touched' by freezing cold water for at least 90 seconds thereafter.

And that's it!

Achieved Results:

Now the best part! I haven't had any tiredness, fatigue OR NAUSEA (yes, you read right!, as I was affected by intense nausea every single evening of my days since diagnosed with Sjogren's or even a little before that). NOTHING! I MEAN ZERO... FOR REAL!!!! Never again have I experienced that sense of incredibly intense will to just stop. I feel invigorated, rejuvenated and am currently attending two fitness classes a week at my local gym (aerobics on Mondays and fitness pump on Thursday) with the duration of 1 hour each. Do you think I get tired after these? No way, I want more and more and more. And this has been the trend for the past 3 months.

Nausea was a constant issue back in 2018. Never again had I any concerns about it. I haven't missed a single day of my cold shower therapy and nausea has just vanished from my life. I hope never to come back.

Final Observations:

We're all different people and maybe my Sjogren's is not as harsh and tough as someone else's, however I did my research and found the solution for my energy problem. If clinicians consider it placebo, which I pretty much doubt as I presented enough scientific literature last time to validate this methodology,... So be it. If placebo works for me, it is in its own nature a great remedy for an issue that can be quite debilitating. With this very simple approach I corrected my own systems and improved so much that I can't believe why I hadn't tried it myself way earlier.

The number of available articles on hydrotherapy is incredibly good for you to go out there and do your own literature research. But I found a wonderful article (I honestly advise you to read it) that debates on the impact of water immersion under different temperatures [2] where one of the cited articles states that "regular winter swimming significantly decreased tension, fatigue, memory, and mood negative state points with the duration of swimming period; significantly increased vigor-activity scores; relieved pain who suffered from rheumatism, fibromyalgia, or asthma; and improved general well-being in swimmers" [3]. 

Mooventhan and Nivethitha (2014) also debate partially something that might possibly explain why it is important to shower the whole body, especially letting the water pour from above the waste line. In this article, two additional articles are cited when the authors state that "Walking in water at umbilical level increases the activity of erector spinae and activates rectus femoris" [4, 5], respectively the back muscles that extend the vertebral column and the thigh/hip inter-crossed muscles. So I think that if you also have the chance to do it at a pool , there might be some additional benefits there. Bear in mind muscle physiology is not my immediate science, I must say. Nonetheless, what we observe here is muscle stimulation, and that is primordial for achieving increased energy levels and better mobility.

In terms of having made nausea absent from my life, this was an unexpected plus from my experiment. But one that I am so happy to have mastered now :) I actually found some information that can indicate a reasoning behind cold showers eliminating nausea in Sjogren's. My suspicion is that it has immediately to do with the endocrine system, but until I find scientific consubstantiation I prefer not to come up with theories that could be simply wrong or distracting from the actual reason.

Any limitations?

Regardless of improvements on energy levels, having eliminated fatigue and tiredness altogether, and made nausea disappear from my life, literature out there states that cold shower therapies do not induce modifications of inflammatory and hematological markers. I do not immediately hold the screening tools to validate that, but at least I'll have a punctual opportunity to see that, as well as any other Sjogren's patient, during annual check-ups.

I hope this article does indeed help you regain control of your life has it has done with mine.

Cheers

The Toxicologist Today

[1] Buijze, G. A., Sierevelt, I. N., van der Heijden, B. C. J. M. et al (2016). "The effect of cold showering on health,  and work:  A randomized Controlled Trial". PLOS ONE, 13(8), pp. 1-15.

[2] Mooventhan, A., Nivethitha, L. (2014). "Scientific Evidence-Based Effects of Hydrotherapy on Various Systems of the Body". N AM J Med Sci, 6(5), pp. 199-209.

[3] Huttunen, P., Kokko, L., Ylijukuri, V. (2004). "Winter swimming improves general well-being". Int J Circumpolar Health, 63(2), pp. 140-144.

[4] Bleakley, C. M., Davison, G. W. (2010). "What is the biochemical and physiological rationale for using cold-water immersion in sports recovery? A systematic review". Br J Sports Med, 44, pp. 179–187.

[5] Bleakley, C., McDonough, S., Gardner, E., Baxter, G. D., Hopkins, J. T., Davison, G. W. (2012). "Cold-water immersion (cryotherapy) for preventing and treating muscle soreness after exercise". Cochrane Database Syst Rev

Post image by Alexei Scutari on Unsplash.

Wednesday, 21 November 2018

On the benefits of cold showers to the immune system

At this stage of your lives if you haven't heard of Wim Hof and his love for freezing cold conditions, you can't be a good family guy. But I'll freshen up your mind, though. Wim Hof is a complete nutter Dutch man with the looks of a cool 70's grandpa that survived the LSD flower-power generation doom Era, and instead of having fried his brains on lysergic acid, easy sex and opiates of many kinds, he instead developed an incomparable taste for personal development (and kudos for using himself as a guinea pig in the process). One must respect this gentleman as he talks the talk and walks the walk. Utter genius in  my  humble opinion. This gentleman has a history and story of his own to which this blog wouldn't be able to make justice, so I honestly advise you to go and check all you can about this person because one can only learn wonders in doing so (ACCESS HERE). 

One of these days I was just browsing through some videos on the London academy/London Talk, I can't remember exactly where, and I found yet another interview to Wim Hof. I already know a lot about his method but I hadn't had the chance to try it myself, in practical terms. It seemed so hard that I was immediately missing on the predisposition to even try it in its easy demo version!!!!! But when he started talking about how his method could help bring a new fresh steady equilibrium to one's immune system, I thought this could only be great for my Sjogren's Syndrome. Because Wim Hof's method is simple and complex at the same time, I think the best person to talk about it is the man himself, so I once again advise you to search for his official content (beware, there are loads of wannabes out there trying to mimic his method; a method he developed and supported with scientific data but many try to reproduce ignorantly). 

                                                                                ***

One of the things that have stricken me straight and sharp was the cold showers alongside deep rapid breaths that he states really do improve the way the immune system operates. Sjogren's Syndrome being an autoimmune disease reflects the malfunctions of an imbalanced immune system, ergo! I wanted to search for scientific literature to support and validate the technique and the reasoning behind it. Recently, about two weeks ago or so, I started with the 1:30 min fast and deep breaths, followed by holding my breath until I feel the urge to breath, then another set of deep breaths, holding for another 15 seconds, then repeating the previous steps twice again, and ending with shock thermal therapy (5 minutes hot bath followed by a short cold water shower [as cold as possible] for about 2 minutes.



BUT BEFORE YOU GO TRY IT YOURSELF AND END UP DEAD IN THE TUB, PLEASE!, OHHHH PLEASE!, CHECK YOURSELF WITH A MEDICAL DOCTOR, EVALUATE YOUR CURRENT MEDICAL STATE AND THEN LEARN FROM THE MASTER WIM HOF HIMSELF; NOT FROM ME. I AM NOT ADVOCATING I MASTER THE METHOD, I AM SIMPLY ATTEMPTING TO FOLLOW IT MY WAY AND DISCUSSING ABOUT THE SCIENCE BEHIND SAID COLD SHOWER THERAPY.

Still alive? Good! Your listening skills are working fine. Let's go see the evidence out there, science-wise, supporting the Wim Hof theory that states the following benefits of cold showers:

1) Reduction of stress levels,
2) Higher level of alertness,
3) More robust immune response,
4) Increased will power,
5) Weight loss.

The literature I found on hormesis (a term used by toxicologists to describe a biphasic dose response to an environmental agent characterised by a low dose of a stimulation or beneficial agent followed by a high dose of inhibitory or toxic agent) definitely supports cold shower therapy as beneficial to the immune system:

Buijze et al (2016) [1] - The authors attempted to determine the cumulative effects of a thermal stress strategy (in the shape of hot-to-cold showers) on sickness, quality of life and productivity at work. Overall, they've observed that the study resulted in a 29% reduction in self-reported sick leave from work and 54% reduction of sickness absence. Surprisingly, the duration of the cold shower did not influence the final results!!! Amazing! And one of the most interesting (from the Sjogren's Syndrome patient's point-of-view) was that the most commonly reported beneficial effect was the increase in energy levels. Nevertheless, I am more interested in the effects observed in the immune system and unfortunately this article lacks such biochemical perspective. So I had to check yet another one.

Shevchuk and Radoja (2007) [2] - Sjogren's Syndrome patients have on average 5% more probability of developing a lymphoma due to the imbalanced immune system activity, hence a balanced modulated immune system being one of my major concerns. Considering these authors' findings, after they've tested a thermal-based hormetic hypothesis, where they were able to conclude that among the immediate/transient effects of cold-stress therapy one can find increased levels of: a) metabobolic rate, ACTH, norepinephrine, beta-endorphin, corticosterone, etc.. On the long-lasting effects (5 days to 6 weeks), they've searched the available literature and realised that minimal stress exposure to "moderate cold still seems to [produce] significant physiological and immunological effects" and "...may be useful for enhancing anti-tumour immunity...".

Dugue and Leppanen, 1999 [3] - Vintage science stuff is always so nice! I'll tell you why - no beating about the bush!!!! This 'old' article was clear as water and it studied the blood of healthy subjects after thermal stress collected at rest; thermal stress being sauna bath plus short swim in ice cold water. The assessed variables were serum cortisol (for an idea on stress levels), dehydroepiandrosterone sulphate (a precursor steroidal hormone involved in the production of testosterone and oestradiol that is controlled in the brain in a negative feedback loop, and when in excess levels can be related to polycystic ovary syndrome and hirsutism in women, congenital adrenal hyperplasia in children, and depression in EVERYONE! When in insufficient levels it can be related to shorter life span, cardiovascular disease in males with type 2 diabetes mellitus, osteoporosis in women, and worse of all LOW LIBIDO) [2]; they also tested antidiuretic hormone (ADH) levels (the hormone levels that help control the amount of water in one's body through the kidney's); and finally the levels of different pro-inflammatory cytokines in plasma (these are signalling 'agents' operating in cell-to-cell communication and immediately related to the functioning of the immune system, thus serving as great indicators of its health). And the observations were quite clear for after thermal stress the total leukocyte, neutrophil, lymphocyte and erythrocyte counts were significantly higher than in the controls. In addition, the levels of IL-6, prolactin and ADH increased significantly. Overall, positively challenging the immune system for those who use the hormesis thermal therapy on a frequent basis.

I merely checked these three articles that popped out after a brief search, but in reality there is some great insightful scientific information available out there on the benefits of hormesis and the thermal stress therapy. I advise you once again that if you have some time go and fetch some of the scientific reasoning also made available in the Wim Hof Official website, you will find some of the most relevant info supporting cold-shower therapy as a boost for a better modulated immune system Here

It's up to you know!

Post image kindly taken from Omni massage and guidance, [http://www.omg.massagetherapy.com/guidance-the-ice-man].

2nd post image Photo by Laura Marques on Unsplash

[1] Buijze, G. A., Sierevelt, I. N., van der Heijden, B. C. J. M. et al (2016). "The effect of cold showering on health,  and work:  A randomized Controlled Trial". PLOS ONE, 13(8), pp. 1-15.

[2] Dehydroepiandrosterone, You and Your Hormones, [http://www.yourhormones.info/hormones/dehydroepiandrosterone/], last visited on the 21st of November 2018, last update unknown.

[3] Dugue , B. and Leppanen, E. (2000). "Adaptation related to cytokines in man: effects of regularswimming in ice-cold water". Clinical Physiology, 20(2), pp. 114-121.

Monday, 18 June 2018

Can this Devil operate miracles? On the anti-inflammatory potential of the harpagophytum procumbens (Devil's Claw)

The World Cup started a few days ago, Mr Kim has met Mr Trump and apparently we are postponing another global armed conflict. I guess we can say the devil is losing this battle and all because our awareness has been raised lately. We are gradually investing in empathy rather than media displays of vulgar superiority. Just help sort out the plastic epidemics by buying less plastic-wrapped products, by demanding a serious environmental consciousness from your wholesalers and from yourself, and we must have a dandy world to show our grandchildren.

Yeah, the devil must not have the upper hand. Unless, of course, we are talking about autoimmune diseases such as Sjogren's syndrome, Lupus, and the whole rheumatic paraphernalia.... and so on and so forth. When it comes to anti-inflammatory issues we must give the devil a chance. OK, now that those who are crazy religious freaks and do not listen/read 'til the end are already painting banners stating God hates homosexuals and bashing biological evolution theories, let's focus on the devil for a moment. But merely on its claw, the Devil's Claw (known by the botanists as Harpagophytum procumbens).

You know, I got one of those emails that is so paradoxical and disturbing (a bit like when Jesse Lee Peterson goes on TV rebranding racism) - bear in mind I haven't taken a stance here. This is not a political blog and I do not dispute idiosyncrasies unless I am asked my opinion on it. But on such occasion the email I was sent explained that this Devil's Claw was the Father of all Miracles and would really fix any Sjogren's, Lupus, Cushing's etc etc etc patients suffering with pain and inflammation to a degree that Hell would become a vast garden of scented flowers.

I had to search the web for articles that would clarify all my concerns and ease my doubts. I ended up finding a video on YouTube, by a certain Dr. James Meschino, that pretty much throws a flaming scare alarm on the lenient use of this plant. Hence, I decided to review a few articles just to be sure that this product can actually be used for treating certain autoimmune diseases with an inflammatory profile. Huge disclaimer here - please ALWAYS resort to your medical doctor or pharmacist for they are the ones who know about your medical history, and use this information for educational support (Each Case Is a CASE!).

In summary this Dr. Meschino states that in fact this native plant from South West Africa, Angola, Madagascar, Botswana, Zimbabwe, Namibia and Kalahari Desert - Devil's Claw - shows enormous anti-inflammatory potential. He says:

1) one of its active constituents is the harpogaside that is believed to be the agent responsible for counteracting inflammation;

2) due to its bitterness it stimulates acid release in the stomach promoting better protein metabolisation;

3) He advises on a quarter to half a gram, two to three times daily (an amount that will roughly correspond to about 5% in harpagoside content);

4) and that harpagosides are believed to hold powerful anticoagulant effects, and for that matter can reactivate or aggravate ulcers, thus should not be combined with other anti-inflammatories (non-steroidal or steroidal ones), nor with anti-coagulants (even if new generation ones). The risk is simple to understand and serious in its own nature - INTERNAL BLEEDING.



Pharmacological active molecules

Not all molecules show the same anti-inflammatory potential, as shown by Fiebich et al (2001) [1] who conducted a very interesting study using a Devil's claw commercial extract to inhibit lipopolyssacharides of bacterial nature. In fact, McGregor et al (2205) [2] also confirmed such, a few years later, when attesting the pharmacological/therapeutic potential of this plant, especially the role of the iridoid glicosides present in its list of constituents (namely harpagoside, procumbide, harpagide, and the 8-para-coumaroyl-harpagide). But warnings were simultaneously published as to the limitations imposed by the test models used.

Toxicity

Well, in regard to toxicity, al-Harbi et al (2013) [3] subjected mice to different official treatment protocols (as suggested by the World Health Organisation): The chronic toxicity study used 100 mg/Kg/day (representing 1/5 of the pharmacologically active dose) administered for a period of 3 months, and focusing on vital organ weight variation, external general symptoms of toxicity, and body weight changes and mortality (up to the end of the trials and not for long-term periods); and concluded that the subjected cohorts experienced low toxicity.

The same study also covered acute toxicity where the subjects were presented to oral doses (0.5, 1 and 3 g/Kg body weight) of the drug suspended in water. This time the analysis focused on autonomic responses, motor activity and central nervous system excitation. One interesting finding is related to 0.5 g/Kg treatment of Devil's claw that  significantly reduced blood glucose levels when compared to untreated cohorts.  However, these were merely preliminary studies and only point towards general assumptions for future studies to consider.

Applications in rheumatic diseases

The incidence of musculoskeletal disorders responsible for disabling many people's lives is high, and any possible natural treatments with pharmacological potential must be analysed for future remedies. Brien et al (2007) [4] compiled a review on the topic that pointed towards safe use of Devil's claw in comparison to non-steroidal anti-inflammatories in reducing pain associated to this disease. The same positive results were also supported by Warnock et al (2007) [5] that focuses their analysis on a number of rheumatic diseases (including arthritis) and a single group of 259 patients for eight weeks with tolerance, liver tests and blood analysis performed. But the main concern could not be answered to, meaning its safe use is still not guaranteed especially because there are no long-term safety assessments and the populations studied are quite limited in number.

Safety

Because I could not find many articles that supported the allegations of Dr. Meschino (I am not saying there isn't any, I am just saying I couldn't find that many) I am not going to say he isn't right. One think I am certain of is that the jury is pretty much still out there on the safety of this plant. But its pharmacological efficacy and range of applications is very much attested. Nevertheless, what the doctors suggest is almost common sense for when we are unaware of the mechanism of action [MOA], as it is the case for the Devil's claw herb, and the MOA of many other complementary and alternative medical therapies [6]. One thing is certain, because of its bitterness it will indeed affect stomach acidity, ergo affecting drugs like proton pump inhibitors, H2-blockers (also known as H2 receptor antagonists) and the like, used to reduce stomach acidity. This is the reason why it might be involved in the worsening of ulcers. However, the safety assessments I was able to find are limited in numbers of populations studied and even range of observations performed. Having said that, I found a really nice piece of document that is 69-pages long, written by the European Medicines Agency [7] (access here) that I will eventually read and try and summarise for you. Bear in mind this document covers many different aspects like medicinal application of this plant, to clinical and non-clinical data, clinical safety, pharmacovigilance aspects and what interests you the most, being the risk-benefit assessment. Once again, after a very brief reading (not thorough at all) I could only find a drug interaction study [8] supporting the allegations of Dr. Meschino, but I still have to lay my eyes properly on this document. The article by Patel et al (2008) [8] apparently (as I could not pay for it, but if you want me to read it just be my guest and send me the money :DDDD) suggests putative interactions with anticoagulants (e.g. warfarin) leading to gastrointestinal bleeding. There was also another article I found (access here) [9] but with no listed authors or free-PDF available that suggests that, in practice reports and concerning devil's claw roots exposed-patients, some showed up with upper gastrointestinal disorders.

The jury is pretty much out there as I already said, but I am sure I will have to discuss the topic further in the weeks to come. Until then, play it safe.

[1] Fiebich, B. L., Heinrich, M., Hiller, K. O., Kammerer, N. (2001). "Inhibition of TNF-alpha synthesis in LPS-stimulated primary human monocytes by Harpagophytum extract SteiHap 69". Phytomedicine, 8(1), pp. 28-30.

[2] McGregor, G. Fiebich, B., Wartenberg, a., Brien, S., Lewith, G., Wegener, T. (2005). "Devil's Claw (Harpagophytum procumbens): An anti-inflammatory herb with therapeutic potential. Phytochemistry reviews, 4(1), pp. 47-53.

[3] Al-Harbi, N. O., Al-Ashban, R. M., Shah, A. F. (2013). "Toxicity studieson Harpagophytum procumbens (devil's claw) capsules in mice". Journal of Medicinal Plants Research. 7(42), pp.3089-3097.

[4] Brien, S., Lweith, G. T., McGregor, G. (2007). "Devil's Claw (Harpagophytum procumbens) as a treatment for osteoarthritis: a review of efficacy and safety".  The Journal of Alternative and Complimentary Medicine, 12(10).

[5] Warnock, M., McBean, D., Suter, A., Tan, J., Whittaker, P. (2007). "Effectiveness and Safety of Devil's Claw tablets in patients with general rheumatic disorders". Phytotherapy Research, 21(12), pp. 1228-1233.

[6] Setty, A. R., Sigal, L. H. (2005). "Herbal medications commonly used in the practice of rheumatology: mechanisms of action, efficacy and side effects". Seminars in Arthritis and Rheumatism, 34(6)pp. 773-784.

[7] Assessment report of Harpagohytum procumbens DC. and/or Harpagophytum zeyheri Decne, radix. [http://www.ema.europa.eu/docs/en_GB/document_library/Herbal_-_HMPC_assessment_report/2016/11/WC500216100.pdf]

[8] Patel, J. A., Gohil, K. J. (2008). ""Warfarin-herb interactions: a review ad study based on assessment of  clinical case reporsts in literature". Boletin LatinoAmericano y del Caribe de Plantas Medicinales y Aromaticas, 7(2), pp. pp. 85-99. [https://www.scribd.com/document/293374607/Warfarin-Vitamin-K-Patel-2008]

[9] No authors listed (2013). "Devil's Claw root: Ulcers and gastrointestinal bleeding". Prescrire Int, 22(144), pp. 296. [https://www.ncbi.nlm.nih.gov/pubmed/24600731]

1st image kindly taken from Harpagophytum procumbens - diseases, [http://flipper.diff.org/app/items/6532], last visited on the 18th of June2018.

2nd image kindly taken from Kew, Royal Botanic Gardens, [https://www.kew.org/science/news/plant-story-devils-claw-found-and-collected-from-botswana], last visited on the 18th of June 2018.

Wednesday, 15 November 2017

Abnormal calcium homeostasis in peripheral neuropathies

Any Sjogren's syndrome patient must be aware of abnormal neuronal calcium homeostasis as a condition that could potentially affect one as the disease progresses. 

It doesn't have to happen to everyone, but if it does it is important to seek medical advice. I for one know that many patients were able to control their tremors and their numbness simply by supplying themselves with a calcium supplement. In many cases this practice solved a problem that not only is pertinent physiologically speaking, but can be also very detrimental emotionally speaking. The fact that the mind starts looking for a name for the symptoms usually directs the affected people to consider themselves affected by early-stage Parkinsonism or even letting the mind escalate to more serious and incongruent diagnosis. 

Abnormal calcium channel expression/function results in what is known as cellular dyshomeostasis , an imbalance that will affect the plasma membrane calcium signalling and the intracellular calcium in those cells related to the peripheral nervous system [1]. For those who are not so familiar with how the human body works to the cellular level, I found an incredibly good image that will allow one to understand how calcium is so important in, for example, muscular fatigue:

[2]


In a web-article by Ryan Andrews (I have no idea who this bloke is or his professional proficiency - I'm just assessing what he said) one can find this image (see above) from the New York Times. The image explains that it is the in- and outflow of cellular calcium that controls the way muscles work, to a certain extent (just to make it simple enough for those unaware of the depths of cell biology). For contraction, calcium is 'expelled', and for relaxation, calcium is sent in to the cellular moiety. If this system is affected by the typical systemic alterations that in Sjogren's syndrome cause metabolic imbalance to the molecular level, then the patients will be prone to sense some detrimental effects on their peripheral nervous system.

But before we go any further let's just go back a little bit to understand what in fact is a peripheral neuropathy and also how is calcium involved in the symptoms produced in the affected body. 

Peripheral neuropathy, as the name so well indicates, is a problem affecting the peripheral nervous system, or in simpler words, the mesh of nerves that connect the central nervous system in the brain with the extremities of our bodies. The moment you are a Sjogren's patient and for a certain period of time, not so occasional as one might think, are affected by numbness or a tingling sensation, loss of balance, loss of coordination, muscular weakness, pain in the limbs, or abnormal sensitivity to touch [3], you have an alarm bell ringing. Because this is pretty much a list of symptoms that can be associated to a range of several other conditions, some of a more serious core, medical advice, as in any other medical situation, should be sought. 

The Sjogren's Syndrome Foundation published about three years ago a list of the Top 10 Peripheral Neuropathy and Sjogren's Facts [4] and I advise any Sjogren's patient to visit the website and have a good read. It will help deconstruct many monsters. 

In regards to resorting to medication, I personally avoid medication to the maximum possible because of side effects that can worsen, for example, xerostomia. And to be fair, in my personal case, a calcium supplement of 800 micrograms a day (2 tablets of 400 micrograms taken with my breakfast food) have corrected the problem entirely! If I'm not wrong the recommended daily dose for a man my age (38) is a gram a day, and then my vegetarian diet provides the subsequently needed calcium. Important to refer that because dairy products are, to a certain extent, to be avoided/controlled in regards to intake as they can be quite 'immunogenic' for the Sjogren's patient, my calcium really needs to be strongly controlled because I rarely have any cheese, I don't remember the last time I had cow's milk, and I don't eat any fish or meat, so...

The alterations I have produced in my life to my diet and behaviour have been working so far. I honestly need more discipline in accepting and applying all the alterations needed to really control the syndrome to a point I'll forget I even have it. So controlled that I can almost consider it 'cured'. There is a long way to go, but my changes have produced very positive effects.

I hope you can also improve, but if you suspect of peripheral neuropathy deriving from your condition, please seek medical advice before implementing any dietary changes.

Let's all get better!


[1] Fernyhough, P. and Calcutt, N. A. (2010). "Abnormal calcium homeostasis in peripheral neuropathies". Cell Calcium, 47(2), pp. 130-139. 

[2] All about vitamins and minerals, Precision Nutrition, [https://www.precisionnutrition.com/all-about-vitamins-minerals], last visited on the 15th of Novenber 2017, last update unknown.

[3] Can peripheral neuropathy be a defficiency issue?, Instant calmag-c, [http://calmag-c.com/peripheral-neuropathy/], last visited on the 15th of Novenber 2017, last update on the 14th of October 2016.

[4] Peripheral neuropathy and Sjogren's, Sjogren's Syndrome Foundation, [http://info.sjogrens.org/conquering-sjogrens/bid/358138/Peripheral-Neuropathy-and-Sjogren-s], last visited on the 15th of November 2017, last updated on the 20t of November 2014.

Post image kindly taken from beliefnet [http://www.beliefnet.com/columnists/aprescriptionforhealthyliving/2017/07/calcium-supplement.html].