Showing 270 results for "gut"

Thinking Outside the Box

There’s a story I love to tell about my dad, a retail warrior with more than 30 years of experience under his belt. And it’s one that I think is apropos for those of us dealing with multiple sclerosis. Back in the 1980s when he was a department manager…

Need to Know: What Is the Microbiome?

Editor’s note: “Need to Know” is a series inspired by common forum questions and comments from readers. Have a comment or question about MS? Visit our forum. This week’s question is inspired by “Newly Diagnosed MS Patients Show Changes in Gut Microbiome, Study Says,” from Dec. 3, 2019.

MS News that Caught My Eye Last Week: AHSCT Trial Enlisting, Interferon-beta and Pregnancy, Probiotics, Language and Brain Health

New Trial Compares Stem Cell Treatment to Available Therapies for Severe Relapsing MS This is a biggie. The U.S. National Institutes of Health is conducting a head to head study comparing autologous hematopoietic stem cell transplantation (AHSCT) to the high-efficacy, disease-modifying therapies currently being used: Tysabri, Lemtrada, Ocrevus, and…

UK Researchers Pursuing Breath Test to Diagnose MS

Scientists at the University of Huddersfield, U.K., are trying to develop a breath test to detect volatile molecules exhaled only by people with multiple sclerosis (MS). Doing so might offer a non-invasive and simple way to diagnose the disease. The research team now plans to undertake…

Need to Know: What Is the Blood Brain Barrier?

Editor’s note: “Need to Know” is a series inspired by common forum questions and comments from readers. Have a comment or question about MS? Visit our forum. This week’s question is inspired by the forum topic “How the Blood Brain Barrier May Thwart MS Progression” from Feb. 9, 2017. What…

Tecfidera May Work to Lower Relapses by Inducing Epigenetic Changes in T-cells, Study Suggests

Treating multiple sclerosis with Tecfidera induces specific genetic alterations that may reduce the levels of immune T-cells targeting the central nervous system, researchers report. Environmental stimuli may induce epigenetic changes in cells — meaning not alterations in the genes themselves, but changes in gene expression (the process by which information in a gene is synthesized to create a working product, like a protein). Epigenetic changes may induce MS development, as these alterations can cause T-cells to attack the central nervous system. One type of epigenetic change is DNA demethylation, the removal of methyl chemical groups, in which molecules involved in metabolism (such as fumarate) interact with enzymes known as DNA demethylases. This process in key for T-cell activation, function and memory, suggesting that it could be an immunomodulatory target. Fumaric acid esters were shown to be effective in MS clinical trials, leading to the approval of Tecfidera (by Biogen) for people with relapsing-remitting forms of the disease. However, their complete mechanism of action remains unclear. Aiming to address this gap, scientists at the Advanced Science Research Center (ASRC) at The Graduate Center of The City University of New York and the Icahn School of Medicine at Mount Sinai, recruited 98 MS patients, either previously untreated (47 people, mean age of 38.4), treated with Tecfidera (35 people, mean age of 42.3), or treated with glatiramer acetate (16 patients, mean age of 43.4) — marketed as Copaxone by Teva Pharmaceuticals, with generic forms by Sandoz (as Glatopa) and by Mylan. All patients had stable disease for at least three months, but disease duration was shortest in untreated patients — 40.4 months vs. 130 months in those given Tecfidera, and 100 months in patients using glatiramer acetate. Blood samples were collected from each participant to assess epigenetic changes in T-cells expressing the cell surface marker CD4. MS patients typically have an activated form of these cells in their blood and cerebrospinal fluid, the liquid surrounding the brain and spinal cord. Results revealed that, compared to the other two groups, treatment with Tecfidera was associated with a lower percentage of T-cells containing the CD3, CD4, and CD8 markers, as well as lower levels of subsets of T-cells expressing the CCR4 and CCR6 receptors, which are critical to T-cell migration to the gut, brain, and skin. Treatment with glatiramer acetate resulted in significantly milder alterations in T-cell percentages compared to no treatment. Researchers then found that FAEs induce excessive methylation — the addition of methyl groups — in T-cells containing CD4, compared to glatiramer acetate. Specifically, this overmethylation was observed in a micro-RNA — tiny RNA molecules than control gene expression — known as miR-21, key for the differentiation of a subset of T-cells called T helper-17 (Th17) cells and for CCR6 expression in MS mouse models. These Th17 cells are critical in tissue inflammation and destruction, and have been implicated in MS. The epigenetic effects of FAEs were subsequently validated by comparing pre- to post-treatment with Tecfidera in seven patients. In turn, in vitro (lab dish) experiments showed that FAEs act specifically on the activation of naïve T-cells — those able to respond to new pathogens to the immune system — containing the CD4 or the CD8 markers. Of note, patients with MS have shown increased miR-21 levels, particularly during acute relapses. As such, the team hypothesized that its hypermethylation by FAEs could contribute to remission and the prevention of relapses in this patient population. These results "suggest that the metabolic-epigenetic interplay in T-cells could be harnessed for therapeutic purposes," the researchers wrote, and that the immunomodulatory effect of FAEs in MS is due at least in part to the epigenetic regulation of T-cells. The researchers believe that their findings have a broader implication, beyond MS. "Our findings about therapeutically active metabolites have implications for the treatment of not only multiple sclerosis but also other autoimmune diseases, such as psoriasis and inflammatory bowel disease, which involve the same type of T-cells," Achilles Ntranos, the study’s lead author, said in a press release. "Understanding the epigenetic effect of metabolites on the immune system will help us develop several novel strategies for the treatment of autoimmune diseases, which could help patients and physicians achieve better clinical outcomes," Ntranos added. Patrizia Casaccia, the study’s senior author, concluded: "It may one day be possible to target and suppress production of the specific brain-homing T-cells that play a role in the development of MS."

Sometimes You Have to Skip the Whaling Chapters

Playing Billy Beane in “Moneyball,” Brad Pitt utters the now famous line, “Adapt or die.” (Warning: The scene linked here has a few naughty words in it.) He’s referencing the use of statistics to create a better baseball team, but I think the saying is true to most…

Daily Cup of Flavonoid-rich Cocoa May Help Ease MS Fatigue

A daily cup of flavonoid-rich cocoa may help ease fatigue in people with relapsing-remitting multiple sclerosis (RRMS), according to the results of a small clinical trial. The study “A randomised double-blind placebo-controlled feasibility trial of flavonoid-rich cocoa for fatigue in people with relapsing and remitting multiple sclerosis” was…

I Want to Be Alive, Rather Than Just ‘Not Dead’

“I’m alive,” said Shadow. “I’m not dead. Remember?” “You’re not dead,” Laura said. “But I’m not sure you’re alive, either. Not really.” This snippet of a longer conversation in Neil Gaiman’s “American Gods” is a strange and wonderful moment in the book — and not only because Laura…

Need to Know: Natural Strategies to Fight MS Inflammation

Editor’s note: “Need to Know” is a series inspired by common forum questions and comments from readers. Have a comment or question about MS? Visit our forum. This week’s question was inspired by the forum topic “Do you know any natural remedies that help fight inflammation?“, from May…

Stem Cell Transplant Lessens Disability and Relapses in RRMS Patients, Phase 2 Trial Shows

Treatment with autologous hematopoietic stem cell transplant (aHSCT) led to a sustained decrease in disability and almost no clinical relapses in patients with relapsing-remitting multiple sclerosis (RRMS) who had failed to respond to prior immunosuppressive therapies, an Australian Phase 2 trial shows. Trial findings were published in the study, “Prospective phase…

Study Links Food Allergies and Increased MS Disease Activity

Multiple sclerosis (MS) patients who reported food allergies showed a 27 percent higher cumulative rate of flare-ups over the course of their disease, and more than twice the likelihood of having active inflammatory lesions, a new study shows. The study, “Food Allergies are Associated with Increased Disease Activity…

Thinking About Selma Blair and Her MS

By now you may have heard that actress Selma Blair has revealed that she has multiple sclerosis (MS). That took a lot of guts. Those of us who share her diagnosis might learn a few things from what she’s shared and how she’s shared it. Blair may be…