Study Reveals Increased ADHD Risk in Children Born to Mothers with Autoimmune Disease

Australian researchers have found a potential link between ADHD in children and maternal autoimmune disease. Image courtesy of Kids’ Health.

An Australian study has found a potential link between autoimmune disease and attention deficit hyperactivity disorder (ADHD).

The study took place over a decade, from 2000 to 2010, following more than 63,000 children born at full-term in New South Wales, Australia. Study author Timothy Nielsen, a PhD candidate at the University of Sydney, said that they were able to identify 12,610 mothers who had one or more of 35 common autoimmune diseases, such as type 1 diabetes, celiac disease, Crohn’s, psoriasis, multiple sclerosis, lupus, Sjogren’s or rheumatoid arthritis, to name a few. The children were identified as having a diagnosis of ADHD, or a prescription for stimulants.

The study also included a meta-analysis of existing research on this topic. The combined results of the longitudinal study and the meta-analysis found that when the mother had a diagnosis of any autoimmune disease, [this was] associated with a higher risk of ADHD in their child at later ages.

While researchers don’t know the exact reason why women with autoimmune disorders are more likely to have children with ADHD, researchers do have a hypothesis. It’s believed that maternal autoantibodies, which attack the mother’s own tissues, cross the placenta into the unborn fetus during pregnancy. Inflammatory molecules, therefore, could potentially do the same. These molecules could, in turn, alter fetal brain development, either by altering epigenetic markers, which turn certain genes on or off, or by impacting the function and formation of synapses, which allow nerve cells to communicate.

Nielsen explained, “These changes may lead directly to ADHD symptoms, or they may make the child more vulnerable to environmental risk factors.” He continued, “Our team is currently working on research into the causal mechanisms that underlie the association between autoimmune disease and ADHD, which may shed light on whether the severity of disease, symptoms, use of medications or other inflammatory factors modifies the risk of ADHD.”

This is the first study that explores the correlation between maternal autoimmune disease and the risk of ADHD in children. Other research has shown a link between autoimmune disease in mothers and other neurodevelopmental disorders, such as autism, obsessive-compulsive disorder (OCD), tics and Tourette’s syndrome.

Read the original study published in JAMA Pediatrics here: Association of Maternal Autoimmune Disease with ADHD in Children.

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10 Facts about Crohn’s Disease

According to the Crohn’s & Colitis Foundation, Crohn’s is a chronic inflammatory condition of the gastrointestinal tract. Read on to learn 10 interesting facts about this autoimmune condition.

1. It’s more common than you think

An estimated 3 million Americans suffer from autoimmune diseases of the digestive tract, referred to as Inflammatory Bowel Disease (IBD). These conditions include Crohn’s disease, Celiac disease and Ulcerative Colitis. Women and men are equally likely to be affected by Crohn’s disease, unlike many other autoimmune conditions which are more prevalent among females.

2. Crohn’s affects patients early in life

Unlike some autoimmune diseases, such as Sjogren’s Syndrome, which are more likely to develop during middle-age, Crohn’s tends to develop early in a patient’s life. Most commonly, the disease will occur in one’s teens or twenties, though some patients can experience symptoms even earlier. According to WebMD, while most people are diagnosed before age 30, the disease can still occur in people in their 60s and beyond.

3. The gastrointestinal symptoms can be debilitating

The most common symptoms of Crohn’s are gastrointestinal in nature. These symptoms include abdominal cramps, diarrhea, weight loss, anemia and delayed growth (especially in younger children). There are actually different types of Crohn’s disease depending on which part of the gastrointestinal tract is affected, and each subtype has its own specific symptoms.

4. Non-Gastrointestinal symptoms are also problematic

Crohn’s patients sometimes experience symptoms that aren’t gastrointestinal in nature, and which are often more problematic than their bowel issues. These symptoms include: fever, colitic arthritis (which migrates along the body and affects one’s knees, ankles, hips, wrists and elbows), pericholangitis (an inflammation of the tissues around the bile ducts), kidney stones, urinary tract complications, and fistulas (abnormal connections between body parts, such as organs and blood vessels).

5. It can greatly impact one’s quality of life

According to the Crohn’s & Colitis Foundation, autoimmune conditions of the digestive tract can highly impact one’s quality of life. For example, the Foundation shared the story of Paige, who was diagnosed with Crohn’s at age 20. Paige had lost 40 lbs on her already petite frame as a result of the disease, and she even had difficulty standing up, since her muscles had become accustomed to her being doubled over in pain. Thankfully, by participating in clinical trials, Paige’s condition is now improving, and she’s regaining her quality of life.

6. The condition can impact one’s mental health too

The Crohn’s & Colitis Foundation states that rates of depression are higher among patients with Crohn’s disease and ulcerative colitis as compared to other diseases and the general population. Furthermore, anxiety is also common among patients who have IBD. Dr. Megan Riehl, a clinical psychologist with the University of Michigan’s Department of Gastroenterology, explains that stress and anxiety can contribute to ‘flares’ of the disease. She also says it’s imperative for patients to find ways to cope with living with a chronic illness, such as cognitive behavioral therapy.

7. A comprehensive physical exam is necessary for a Crohn’s diagnosis

A number of advanced diagnostic tools are used to determine if a patient has Crohn’s disease. These diagnostic procedures include: imaging scans and endoscopic procedures. Imaging scans involve CT scans or specialized X-rays to view your colon and ileum (a portion of the small intestine). Endoscopic procedures, such as a flexible sigmoidoscopy or a colonoscopy, involve the insertion of a tube into one’s rectum, lower colon or entire colon to examine the area in detail.

8. Crohn’s may be genetic in nature

According to John Hopkins Medicine, Crohn’s may be genetic, especially considering it’s more prevalent among people of certain ethnic groups. For example, people of Ashkenazi Jewish descent are at a greater risk of having the disease compared to the general population. In addition, a genetic cause is suspected, since studies have shown that between 1.5% and 28% of people with IBD have a first-degree relative, such as a parent, child or sibling who also has the disease.

9. Environmental triggers for Crohn’s may also be responsible

According to the Crohn’s & Colitis Foundation, the lack of complete gene penetrance and the rapid rise of IBD incidence in certain geographic regions suggests that both genetic and environmental factors contribute to this condition. Several environmental triggers currently being studied include: diet, smoking, viruses and psychological stress.

10. There is hope

If you or someone you know has Crohn’s disease, it is important to get support for your condition. In addition to working closely alongside a team of medical professionals to get the right treatment, patients are encouraged to find a local support group where they can connect with others who are living with the condition. Moreover, patients should consider taking advantage of the many patient resources out there, such as the Crohn’s and Colitis online community, the IBDVisible blog and the patient stories center. Remember, you’re not alone in the fight against Crohn’s!

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Is This Illness Related to COVID-19 Autoimmune?

Healthcare professionals are grappling with the effects of pediatric multisystem inflammatory syndrome (MICS), a complication of COVID-19 in children

Across the world, disturbing reports are coming through detailing a new complication thought to be related to COVID-19 that is affecting children with the virus. The illness, called pediatric multisystem inflammatory syndrome, or MICS for short, causes the immune system to overreact, leading to dangerously high levels of inflammation throughout the body. It impacts the body’s major organs, including the heart, liver, and kidneys, among other parts of the body.

Juliet Daly, a 12-year old girl from Louisiana, was diagnosed with both COVID-19 and MICS after going through cardiac arrest. Thankfully, she was airlifted to a children’s hospital, where she was put on a ventilator until she could breath on her own and her heart and other organs had recovered.

Juliet Daly was diagnosed with COVID-19 and pediatric multisystem inflammatory syndrome after being admitted to the hospital. Image courtesy of CNN.

Pediatric multisystem inflammatory sundrome has been compared to Kawasaki disease, an inflammatory condition primarily found in children under age five that impacts the heart’s coronary arteries. Kawsaki disease can lead to complications like artery enlargement, aneurysms, issues with the lymph nodes, skin, and the lining of the nose, throat and mouth. Some experts hypothesize that the coronavirus could be a trigger for Kawasaki disease. A recent study done in Bergamo, Italy found that the incidence of a ‘severe, Kawasaki-like disease’ increased 30-fold after the virus broke out in the region, further supporting this theory.

Pediatric multisystem inflammatory syndrome also bears the hallmarks of a cytokine storm, a phenomenon in which the body’s immune system overreacts to the virus and mounts a harmful inflammatory response in the body.

This raises the question, is MICS autoimmune in nature? While little is known about the condition, Dr. Randall Williams, Director of the Missouri Department of Health and Senior Services, said during a recent press conference that the condition is an “autoimmune reaction“, and that “it’s basically where your body reacts to an antigen and starts attacking itself.”

The relationship between viruses and autoimmune disease has been studied in the past. For example, studies have found a link between the Epstein-Barr virus (EBV) and the pathogenesis of a number of autoimmune diseases including lupus, multiple sclerosis, rheumatoid arthritis, juvenile idiopathic arthritis, inflammatory bowel disease, type 1 diabetes, and celiac disease.

Though there isn’t a cure for MICS, it’s treated by giving patients steroid and intravenous medications commonly issued to patients with an autoimmune disease, in an effort to decrease damaging inflammation.

While the coronavirus has proven to be less common and less deadly in children than adults, two young children and a teen with COVID-19 who showed Kawasaki disease symptoms have died in the state of New York. As a result, parents are advised to take precautions and contact their pediatrician or family medicine provider if your child has a fever to determine the best next steps.

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