This blog is a way of sharing the information and resources that have helped me to recover my son Roo from an Autism Spectrum Disorder. What I have learned is to view our symptoms as the results of underlying biological cause, which can be identified and healed. I say "our symptoms" because I also have a neuro-immune disorder called Myalgic Encephalomyelitis.

And, of course, I am not a doctor (although I have been known to impersonate one while doing imaginative play with my son)- this is just our story and information that has been helpful or interesting to us. I hope it is helpful and interesting to you!


Sunday, June 7, 2026

Nutrition Information

(see also General Supplement Notes)

General Sources of Nutritional Information

Physicians Committee for Responsible Medicine. Nutrition Guide for Clinicians. (multiple chapters)
      Micronutrients in Health and Disease
      Celiac Disease

USDA What's in Food and FoodData Central 

USDA Dietary Guidance 

USDA Nutritional Evidence Systematic Reviews  

National Academy of Medicine Dietary Intake Requirements (basically RDAs)
     There are many listings here, some for general topics such as energy requirements and some for groups of specific nutrients.

Linus Pauling Institute Micronutrient Information Center

Immune Function and Micronutrient Requirements Change over the Life Course 

Nourishing Hope (Site for Julie Matthews, a nutritionist who specializes in using nutrition to heal health conditions, particularly neurological ones such as autism, ADHD, anxiety, OCD, etc).  

 

Plant-Based Diets
It is very important when eating a plant-based diet to be mindful about getting adequate nutrition.  The following resources can help.  This is not an endorsement of plant-based eating, I am passing along important information regarding this diet.

Nutritional Assessment of the Symptomatic Patient on a Plant-Based Diet: Seven Key Questions
This paper focuses on seven significant nutrients that must be carefully planned for when eating a plant-based diet.  These are: vitamin B12, iron, EFAs, calcium, zinc, and vitamin D, and complete proteins.  The paper includes a list of additional resources regarding nutrition and a plant-based diet including:

Physicians Committee for Responsible Medicine. Good Nutrition.


 

 

Dr. Greg Plotnikoff on Dysautonomia/MCAS

Notes from an episode of The POTSCAST/Mast Cell Matters:
(this link includes a transcript of the interview down the page)

This episode features Dr Plotnikoff, a highly respected doctor and researcher in the areas of chronic pain and related conditions.  For more on Dr Plotnikoff or to follow him go here:
Minnesota Personalized Medicine
on Instagram 

He and colleagues are well-known for their foundational contribution to understanding the contribution of vitamin D deficiency to chronic pain conditions.  His work on this subject includes:
Prevalence of severe hypovitaminosis D in patients with persistent, nonspecific musculoskeletal pain
"All patients with persistent, nonspecific musculoskeletal pain are at high risk for the consequences of unrecognized and untreated severe hypovitaminosis D. This risk extends to those considered at low risk for vitamin D deficiency: non-elderly, non-housebound, or non-immigrant persons of either sex. Non-immigrant women of childbearing age with such pain appear to be at greatest risk for misdiagnosis or delayed diagnosis. Because osteomalacia is a known cause of persistent, nonspecific musculoskeletal pain, screening all outpatients with such pain for hypovitaminosis D should be standard practice in clinical care."

Vitamin D Deficiency as a Contributor to Multiple Forms of Chronic Pain: In Response
In this follow-up comment, Dr Plotnikoff references the work of others that has identified various unusual pain syndromes involving symptoms such as excessive pain in the skin that is sensitive to bright lights and even light pressure, and that resolves with vitamin D normalization, as well as patients wth bone pain that was resolved with vitamin D supplementation.  He encourages readers to further research vitamin D deficiency on Pubmed as there are many new discoveries in this area.

The interview begins with Dr Plotnikoff discussing research findings that he learned about at the most recent Dysautonomia International conference, including a a presentation by Dr. Chip Norris at Medical University of South Carolina (and his lab, which includes many researchers who have hEDS themselves) that found that in a cohort of patients with hEDS, the average number of comorbidities was 25.  The most common was pain, the second most common was Dysautonomia, and the third was GI concerns.  Dr Dempsey asks if this may be because so many people with hEDS also have MCAS.  He also references research by this lab that hasn't been published yet that took a deep look at the genetics involved in hEDS and what they found was surprising- unlike other forms of EDS that have a clear genetic basis in collagen and connective tissue genes, hEDS instead has to do with genes involved in auto-inflammatory states and pathways.   

This shifts the focus onto the category of auto-inflammatory syndromes.  Dr Dempsey remarks that she and Dr Afrin have found that "a fair number" of their MCAS patients have been found on genetic testing (in vitae or whole genome sequencing) to have auto-inflammatory conditions including NOD2 as well as other, more rare mutations, and that at this point it is unclear whether these genetic factors are drivers of MCAS, predictors of it, or something else.  

A new category of auto-inflammatory disease associated with NOD2 gene mutations

Discussion now jumps to a presentation by Tae Chung from Johns Hopkins concerning the genetics involved in Long COVID.  He found multiple pathways that were abnormal, including TCN2.  Dr Dempsey then relates these findings to a study by Brigham and Women's Long COVID and Chronic Fatigue Syndrome Clinic that also looked at proteomics (the study of proteins) and found 3 that were  exceptionally elevated including one protein involved in B12 transport.  When considering B12 levels you would also want to know the methylmalonic acid and homocysteine levels.  B12 is important for the central nervous system so a problem with a transporter could have significant effects and could explain why many patients seem to require high doses of B12 delivered intramuscularly.  

Discussion jumps again to an article in Nature about CoQ10 deficiency.  Researchers studied a child with a genetic cause of CoQ10 deficiency and were able to identify which step in which process was not functioning properly.  They were then able to treat the child with a synthetic form of whatever the next step in the pathway is and the child regained the ability to walk.

Discussion now jumps to talk of an approach to treating gastroparesis, slow motility, nausea and vomiting, that is used in Japan were they give IV thiamin and pantothenic acid.  Thiamin deficiency is sometimes called Beriberi and in America is thought to be essentially non-existent outside of severe cases of alcoholism and malnutrition.  The symptoms include Anorexia, nausea, abdominal pain, vomiting, early satiety, low motility, constipation, and eventually parasthesias.  There is recent evidence now of a "gastrc Beriberi" from a case study published by Harvard recently.  (Thiamine deficiency can be mistaken for MS).  Dr Dempsey notes that she has seen low levels of thiamine and riboflavin in many of her patients.  She also notes that gluten-free diets are low in thiamine.  Baking anything over around 250 degrees causes the thiamine to break down.  Baking soda also breaks it down.  Washing rice washes it out.  It is also destroyed by UV light so clear packaging allows it to break down.

Most importantly, mycotoxins break down thiamine (in particular fumonisins - 30 species of fumonisins are potent thiamin breakers as well as at least one mycotoxin from penicillin).  Thiamine contains a fragile methyl bridge so is easily broken down.   These mycotoxins can come from molds that grow directly on the grain or are involved in its storage, but can also come from mold in a living environment.  There are also organisms in the microbiome that destroy thiamine including bacillus subtilis, candida, H. pylori, and Staph aureus.  Some medications destroy thiamine including omeprazole, antibiotics, metformin and diuretics (which can flush thiamine out of the body).  Multivitamins tend to contain the forms thiamin hydrochloride or thiamin mononitrate which have very low levels of absorption (around 3% to 5%).  The RDA of thiamine for people on feeding tubes or TPN is much higher.  Magnesium is necessary to activate thiamine.

Blood tests are not a good measure of the body's thiamine levels because less than 1% of the body's thiamine is in the blood.  the rest is on cells, especially red blood cells.  "people with Wernicke's encephalopathy have demonstrated normal thiamin levels".  Other markers that can indicate low thiamine levels include high pyruvate, "high phytanic acid to pristanic acid ratios or high branch chain fatty acids or high branch chain amino acids. The sister keto acids, isovaleric, et cetera are all decent measures."  "And there are 11 different places where thiamin acts in the body, three of them directly related to the Krebs cycle, and including upstream from GABA, the calming neurotransmitter."  

Vitamin B1 deficiency in patients with postural tachycardia syndrome (POTS)   This paper by Svetlana Blitshteyn found evidence of thiamine deficiency in POTS patients, although didn't take into account the limitations of blood testing.  Thiamine is necessary for the body to make acetyl-CoA, which in turn is necessary to make acetylcholine, which is the neurotransmitter of the autonomic nervous system.   Thiamine also augments the function of acetylcholine and helps to support acetylcholine levels.  

Best ways to supplement thiamine?  Thiamin hydrochloride and thiamin mononitrate are both not well absorbed so should not be relied upon.  Myers Cocktail, an IV boost of nutrition contains a good dose of thiamine as well as the magnesium needed for it to be used.  Allium vegetables are some of the best food sources (onions, garlic, leeks).  Allimax is a garlic based supplement that has been helpful for some.  

Allithiamin which is a type of thiamin commercially available that can be combined with lipoic acid as Lipothiamin. 

Benfotiamine is a fat-soluble form of thiamine that is well absorbed.  It has shown some benefit in Alzheimer's patients in several small, randomized trials.  Dosing is either 300mg once or twice a day.

Riboflavin (B2) is a mast cell stabilizer and it helps migraines.  Dr Plotnikoff discusses the potential nutritional deficiencies that they and other doctors are seeing in some patients on plant-based diets.  They specifically mention riboflavin, vitamin B12, and long chain Omega-3 fatty acids.  The following paper was published by them to discuss these specific concerns:

Nutritional Assessment of the Symptomatic Patient on a Plant-Based Diet: Seven Key Questions

Additional commentary about nutrition on a gluten-free plant-based diet "gluten-free plant-based diet has no methionine in it, as does Orgain plant-based kind of protein drinks or Kate Farms 1.4 or multiple other plant-based protein, you know, kind of shake type supplements. No methionine. No methionine means no methylation. No methylation means things related to, you know, neurotransmitter production, mood, memory, energy, sleep, estrogen clearance, histamine clearance all depends upon this."

 


Thursday, January 29, 2026

FOXP3 and Autoimmunity

 

The 2025 Nobel Prize in Medicine has been awarded for one of the most important discoveries in immunology: the biological system that keeps your immune system from turning on you.

Your immune cells are trained to destroy viruses, bacteria, and other foreign invaders. But that power has to be kept in check – or it can misfire, attacking your own organs. The process that prevents this is called peripheral immune tolerance, and it’s largely controlled by a type of cell called the regulatory T cell.

This year’s Nobel went to Mary E. Brunkow, Fred Ramsdell, and Shimon Sakaguchi for uncovering the genetic and cellular systems that make this immune self-regulation possible.

Back in 1995, Sakaguchi identified a previously unknown class of T cells that seemed to hold back the immune system from attacking the body. A few years later, Brunkow and Ramsdell discovered the gene that controlled them – FOXP3 – after studying a rare, fatal autoimmune disease in children. They found that when this gene is mutated, the immune system becomes unregulated and begins destroying healthy tissue.

Two years after that, Sakaguchi made the connection: FOXP3 was the master switch for the same immune-regulating cells he had identified earlier.

These discoveries launched a new field of research. Regulatory T cells are now being investigated in therapies to suppress autoimmunity, improve transplant success, and even enhance cancer treatment by modulating immune suppression around tumors.

Saturday, September 27, 2025

Acetominophen Use and Autism- The Evidence

Using acetaminophen during pregnancy may increase children’s autism and ADHD risk

Mount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD 

Evaluation of the evidence on acetaminophen use and neurodevelopmental disorders using the Navigation Guide methodology

FDA memo to physicians Notice to Physicians on the Use of Acetaminophen During Pregnancy

Tylenol is a brand name for the drug acetaminophen, which is the last of a class of drugs still on the market that were derived from coal tar.  It was put on the market when it's predecessor, phenacetin, was taken off the market due to being highly carcinogenic.  The other drug from the class, acetanilide, was withdrawn from the market because it was found to be hepatotoxic (toxic to the liver) and caused methamaglobinemia (blocking the ability of hemoglobin to carry oxygen).  

Thursday, September 25, 2025

Mast Cell Involvement in Other Diseases and Disorders

Mast cell involvement in other diseases and disorders"
In general:
 
Mast Cells in Liver Disease Progression 

Mast cells in the brain and psychiatric effects:
(see the post Mast Cells, MCAS, and Psychiatric Symptoms)
 
"Recent evidence indicates that neuro-inflammation could contribute to seizures. We hypothesize that brain mast cell activation due to allergic, environmental and/or stress triggers could lead to focal disruption of the blood-brain barrier and neuro-inflammation, thus contributing to the development of seizures."
“Allergic Symptoms” in Children with Autism Spectrum Disorders. More than Meets the Eye?Activated mast cells excrete mitochondrial components, triggering autoimmunity
Children with autism have elevated levels of mast cell mediators in their blood
Mercury causes mast cells to release pro-inflammatory mediators
Is a subtype of autism an allergy of the brain?
Focal Brain Inflammation in Autism
Neuroinflammation and Autism

In the Gut:
Mast Cells in Gastrointestinal Disease
Mast Cells and Irritable Bowel Syndrome: From the Bench to the Bedside.
Intestinal mast cells in gut inflammation and motility disturbances
Mast Cell Activation in Gallbladder Disease
Mast cell–nerve axis with a focus on the human gut
Mast cells and Cyclic Vomiting Syndrome (also migraine and leaky gut)
Consider Hereditary Angioedema in the Differential Diagnosis for Unexplained Recurring Abdominal Pain
Imatinib and Trigger Avoidance for Mast Cell Activation Syndrome Presenting With Attacks of Abdominal Pain, Nausea, Vomiting, and Diarrhea
Hereditary Angioedema Presenting as Recurrent Acute Pancreatitis
Allergic mastocytic gastroenteritis and colitis: an unexplained etiology in chronic abdominal pain and gastrointestinal dysmotility


In Neurological Conditions:
Mast Cells:  versatile gatekeepers of pain
Mast Cells- the key to Multiple Sclerosis?
Mast Cells, histamine, and Hydroxyzine in MS
Mast cells may lead to abnormal nerve growth such as Neurofibromatosis
Mast cells are involved in the pathogenesis of neurofibromas
Mast cells in the autonomic nervous system and potential role in disorders with dysautonomia and neuroinflammation
Brain Injury-Mediated Neuroinflammatory Response and Alzheimer's Disease

In the Cardiovascular System and Blood:
Cardiovascular symptoms in patients with systemic mast cell activation disease
Evidence for a Role of Mast Cells in the Evolution to Congestive Heart Failure
"These observations suggest that mast cells play a critical role in the progression of heart failure. Stabilization of mast cells may represent a new approach in the management of heart failure."
The role of mast cells in atherosclerosis

Cardiac mast cells: the centerpiece in adverse myocardial remodeling
Cardiac mast cells cause atrial fibrillation through PDGF-A–mediated fibrosis in pressure-overloaded mouse hearts
Mast Cells as Effectors in Atherosclerosis
Effects of Primary Mast Cell Disease on Hemostasis and Erythropoiesis
Mast cell activation disorder masquerading as pure red cell aplasia
Polycythemia from mast cell activation syndrome: lessons learned
Mast cell activation syndrome masquerading as agranulocytosis
Mast Cell Activation Disorder and Postural Orthostatic Tachycardia Syndrome: A Clinical Association
Hyperadrenergic Postural Tachycardia Syndrome in Mast Cell Activation Disorders


Monday, July 14, 2025

Shortages of Medications and Medical Products

 How hospitals are grappling with the IV fluid shortage wrought by Hurricane Helene

 ASHP Current Drug Shortages

ASHP Updates IV Fluid Shortage Resource; FDA Announces Compounding Flexibilities

Hurricane Helene: Baxter's manufacturing recovery in North Carolina

Below is information on the current (October 2018) IV Benadryl shortage:
ASHP update (10/22/2018) regarding the IV Benadryl shortage
For more specific and personal information about the shortage and how it affects patients see these posts from Lisa Klimas of the MastAttack blog and Cheyanne Perry of the Hospital Princess Vlog 

Below is information on the current (October 2018) epi pen shortage:
The Mastocytosis Society statements and updates

Extended Expiration Dates for Select Lots of EpiPen®0.3 mg Auto-Injectors and its Authorized Generic (from Mylan who is the distributor of the epi pen)
"On Aug. 21, 2018, the U.S. Food and Drug Administration announced to extend the expiration dates of specific lots of EpiPen 0.3 mg Auto-Injectors and its authorized generic version, after review of stability data. Patients should have confidence in using the products from these particular lots as Pfizer works to stabilize supply, which is anticipated in the fourth quarter of 2018."

"Mylan, the distributor, is expediting shipments upon receipt from Pfizer and continues to encourage patients who are experiencing difficulty accessing product to call its Customer Relations team at 800-796-9526 for assistance in locating other pharmacies. To further assist patients during this period of limited supply, Mylan recently extended its Customer Relations hours to Monday through Friday, 8 a.m. to 7 p.m. ET and Saturday through Sunday, 11 a.m. to 4 p.m. ET."