G3.5: Negative stress chemicals may cause symptoms like itching, migraines, pain or IBS.

Our bodies don’t have specific receptors just for sensing “pain.” Pain is a sign that something is wrong in the body and is sensed in a variety of ways. In medical terminology there are two main types of “pain.”

  • Nociceptive pain is associated with physical damage to the body or by sensations of pressure or heat or extreme cold. It might be due to pressure from a cancer tumor. Nociceptive pain might be described as “sharp, aching or throbbing.”
  • Neuropathic pain is caused by physical damage or pressure on nerves. It might also be due to a cancer tumor but one that is pressing on a nerve. Nerve damage can also be due to some nutrient deficiencies such as vitamin B12,  (G3.13), or other “Nutritional imbalance, alcoholism, toxins, infections or auto-immunity.” Neuropathic pain often is described as “a burning or heavy sensation, or numbness along the path of the affected nerve.” (G3.14)

Some types of pain such as migraine headaches may involve both nociceptive pain due to the pressure of inflammation or dilation of blood vessels an neuropathic pain from pressure on nerves by dilated or inflamed blood vessels.

    The next part gets complicated, some background information:

  • Calcitonin is a hormone released by the thyroid that promotes lower blood calcium levels by reducing bone resorption, (G3.15) (Bone resorption: breakdown of the bone and release of minerals, (G3.16)).
  • Calcitonin Gene-Related Peptide 1 and 2 (CGRP 1: (G3.17) and CGRP 2: (G3.18)) cause dilation of blood vessels in the heart and brain and throughout the body. Its prevalence in the Central Nervous System (CNS) also suggests that it may also have a neurotransmitter or neuromodulator role.

CGRP is produced by nerve cells in the brain and throughout the body. The protein has a role in sensations of pain. It is a member of the calcitonin family of proteins and exerts its effects at receptors that are formed from two other types of receptors.

The CGRP protein has two commonly found forms, one helps reduce pain and one helps increase it – luck of the draw. The alpha form of the protein may help reduce pain while the beta form is associated with migraine, temporomandibular joint (TMJ) pain, psoriasis and irritable bowel syndrome (IBS). The beta form is largely produced in keratinocytes found in the epidermis layer of skin. The alpha form is the type produced more within sensory nerves. (G3.19) (Psoriasis is an eczema-like condition believed to be autoimmune in nature.)

After a physical injury like a bump on the shin, inflammation causes an increased output of the Calcitonin Gene-Related Peptide (CGRP) and an inflammatory protein that is called Substance P, possibly for peptide, which is another word for protein. The release of the peptides follows shortly after an inflammatory event and shortly the chemicals are released there is  edema and plasma leakage in the surrounding area. (G3.20) The inflammatory peptides are also released in increased amounts during migraine headaches. (G3.21) The peptides increase the dilation of blood vessels and cause increased leakage from blood vessels (edema) and “degranulation of mast cells.” (G3.19) (G3.21)

Levels of CGRP increase in people who suffer from migraines and a type of prescription medication, called sumatriptan, which has been found helpful to stop migraine pain, has also been found to inhibit the release of CGRP in migraine patients. The medication may be inhibiting the release of CGRP by increasing intracellular levels of calcium. The “cytokine TNF-α” may be involved in migraine pain. (G3.21)

That was the background – the bottom line – magnesium deficiency can make the body more susceptible to the negative effects of CGRP, Substance P and chronic stress. And a chronic stress situation combined with chronic magnesium deficiency may lead to the development of inflammatory conditions like migraines, fibromyalgia, PTSD, or Irritable Bowel Syndrome. The magnesium deficiency associated with the inflammatory peptides CRGP and Substance P may be causing an increase in the level of the cytokine TNF as early as two days after a deficient diet was begun in a research study with lab animals. (G3.22)

So an Epsom salt bath or foot soak may relieve itch by providing the body with a form of magnesium that can be absorbed through the skin bypassing any GI problems that might underlie a chronic magnesium deficiency. It isn’t uncommon to have a diet low in magnesium but it is also not uncommon in the food supply. Problems with poor absorption or increased kidney or bowel loss are common causes of chronic magnesium deficiency.

A variety of tips for reducing Substance P levels are included in the article Trichodynia, Pain, and Substance P. Exercise, hobbies that use repetitive motions of the hands such as knitting, and stretching exercises may help reduce excess levels of the inflammatory chemical according to the article on the website drwardbond.com, see the article for more details: (G3.23)

See a healthcare provider for medical advice, diagnosis or treatment.

  • Disclaimer: Opinions are my own and the information is provided for educational purposes within the guidelines of fair use. While I am a Registered Dietitian this information is not intended to provide individual health guidance. Please see a health professional for individual health care purposes.

The Academy of Nutrition and Dietetics has a service for locating a nutrition counselor near you at the website eatright.org: (eatright.org/find-an-expert)

References:

Looking up an itch found a synthetic cannabinoid in clinical trial for four diagnoses; Resunab

Cannabinoids are the active phytochemicals found in marijuana which include the euphoric THC and many, many non-euphoric types. A synthetic version of one of them has reached trial stages for autoimmune and skin related diagnoses and for the life shortening genetic condition Cystic fibrosis.

I stumbled across the information while looking up whether marijuana has been found helpful for preventing or treating eczema or the autoimmune skin condition psoriasis, [link] – yes was potential answer and a specific synthetic cannabinoid was mentioned: Ajulemic acid.

A 2007 study published in the Journal of Dermatological Science found that Cannabinoids, having anti-inflammatory properties, work to inhibit the proliferation of skin cells called keratinocytes, which play a role in causing psoriasis. [link]

Its Wikipedia page led me to the company and the clinical trials. The synthetic molecule is being purified and called Resunab by the company Corbus Pharmaceuticals. They have already been approved for Phase Two trials for the drug for four different serious diagnoses: Cystic Fibrosis, Systemic Sclerosis, Dermatomyositis, Systemic Lupus Erythmatosus. The synthetic cannabinoid activates the CB2 receptors and does not cause symptoms of euphoria as does THC, the euphoria promoting chemical found in marijuana. [Read more regarding Resunab and the clinical trials by Corbus Pharmaceuticals]

And why was I looking up eczema and psoriasis and cannabinoids? – the incredible itchiness I’ve been experiencing since only a few days off of my medical marijuana. Some autoimmune symptoms are worse and a previously tiny itchy spot is now raised scabby patches over a large area of my back – arrgh. (It’s talk like a pirate day.) My genetic study and personal life experience has proven to my satisfaction that my body needs an external source of cannabinoids — and a non-euphoric source would be nice but a euphoric source in the meantime is less itchy than having no source – for me at least and maybe for the other psoriasis patients who participated in previous research studies.

Take home point for patients with one of the four diagnoses in Stage 2 trials – contact the company for more information regarding whether they are still looking for patients to participate.

Take home point for me – I’m not 100% sure but my back is itchy, and I think the take home point is that my body needs an external source of cannabinoids and I should just accept that and adapt my life to the current realities of limited legality, limited access, difficulty traveling legally, etc. Marijuana has been found to help promote brain cell growth, prevent cancer, and help reduce inflammatory symptoms associated with autoimmune disease. And previous reading had suggested that I have a genetic problem in my keratinocytes that may be associated with, drum roll,  migraines, TMJ, IBS, and eczema. I have had all of those problems for many years of my life, decades of discomfort, hours of lost time with my children, hours of reduced productivity at work.

But marijuana is a powerful drug and the strains and quality of what is available to medical patients varies greatly. It is safest when the strain has a good balance of euphoric and non-euphoric cannabinoids — both types have medical properties and affect the neurotransmitters in the brain and throughout the nervous system.

Previous (very messy collections of notes) posts on keratinocytes:

  1. Substance P, neuropathic pain, migraines, and the cannabinoid system
  2. An article on Morgellons; a link, and a comment I added re keratinocytes

Disclaimer: Opinions are my own and the information is provided for educational purposes within the guidelines of fair use. While I am a Registered Dietitian this information is not intended to provide individual health guidance. Please see a health professional for individual health care purposes.