Problems with the workings of a protein called hnRNP A1 drives nerve death in multiple sclerosis (MS) by affecting how nerve cells process RNA, a study reports. RNA is an intermediary molecule that’s produced when genes are “read,” and it is used as a template for protein production. Abnormalities…
genetics
Genetic changes that predispose people to developing multiple sclerosis (MS) first emerged among herding populations who migrated to Eastern Europe thousands of years ago and then spread across the continent, new research has found. Researchers think these genetic variations may have helped turbocharge the immune system, making it easier…
In people with a family history of multiple sclerosis (MS), exclusive breastfeeding in the first months of life may reduce the risk of developing the disease later on, whereas use of cow’s milk or formula may increase MS risk. That’s according to a new study on the potential impact…
The European Union (EU) is providing 7.1 million euros (about $7.6 million) over five years to a global interdisciplinary consortium that seeks to identify the causes of multiple sclerosis (MS) — with a particular focus on viruses — and find new treatments for the disease. The “BEHIND MS”…
People with multiple sclerosis (MS) of African descent had higher levels of inflammatory B-cells in the fluid around the brain and spinal cord compared with white MS patients in a small U.S. study. These findings may help to explain why Black people with MS tend to experience a faster…
People with a higher genetic risk for multiple sclerosis (MS) were seen to have detectable differences in their gut bacteria in a small study. “There seems to be an association between genetic risk score and [changes in gut bacteria] in triggering the disease in a small cohort of MS…
Heligenics has discovered a number of variations in the interferon beta 1 (IFNB1) gene that may markedly improve the effectiveness of medications containing the interferon beta protein — a protein widely used in the treatment of multiple sclerosis (MS). The discovery was made using the biotechnology company’s…
Researchers have identified nearly two dozen genes that help to control the movement of immune cells into the brain and spinal cord during multiple sclerosis (MS). Findings may form the basis for the further development of MS treatments that aim to reduce disease activity by blocking the infiltration…
A protein called Daam2 helps to regulate the activity of cells in the brain that make myelin, the fatty covering around nerve fibers that’s damaged in multiple sclerosis (MS), a new study shows. By uncovering how that protein functions in the brain to boost myelin repair, researchers have discovered…
The risk of developing multiple sclerosis (MS) was similar between first- and second-degree family members of people with relapsing-remitting MS (RRMS) and primary progressive MS (PPMS). The findings, which were consistent with previous studies suggesting that genetics and environment are relatively equal contributors to disease risk, also…
People with multiple sclerosis (MS) living in the U.K. who identified as South Asian reported their first symptoms at a significantly younger age than self-reported white and Black individuals, according to preliminary data from the ADAMS project. ADAMS, which stands for the genetic Association study of individuals from…
Welcome to “MS News Notes,” a Monday morning column where I comment on multiple sclerosis (MS) news stories that caught my eye last week. Here’s a look at what’s been happening: Another study shows positive results with stem cell therapy Yet another study has concluded that autologous hematopoietic…
Researchers identified a genetic variant that associated with faster multiple sclerosis (MS) progression and greater brain tissue damage, according to a study that combined data on more than 12,500 patients in North America, Europe and Australia. Unlike previously detected MS-related variants linked to the immune system, this variant sits…
Changes in the gene activity within immune T-cells explain why women with multiple sclerosis (MS) improve during pregnancy, a study reports. Gene activity changes during and after pregnancy were highly similar between MS patients and healthy women. Many of the genes whose activity was altered during pregnancy were associated…
The protein DDX39B is a master regulator of immune tolerance, or the immune system’s ability to distinguish self from potentially harmful nonself molecules, and helps to control the development of immune cells that are key for this process, a new study shows. Findings suggest that activating DDX39B with small molecules…
An updated snapshot of multiple sclerosis (MS) in the U.S. — provided by new population estimates from a study of insurance data — shows a greater prevalence of MS among white and Black people compared with other racial and ethnic groups. But overall, the neurodegenerative disorder has become more…
When the immune system launches an attack to fight off infection with the Epstein-Barr virus, immune cells can accidentally end up targeting a protein called CRYAB that’s normally expressed by healthy myelin-making cells in the brain, a study found. The findings provide further evidence that molecular similarities between distinct…
A pair of experts are calling for genetic tests to be developed to identify people at higher risk of developing progressive multifocal leukoencephalopathy (PML), a serious brain infection that can occur as a side effect of certain multiple sclerosis (MS) treatments. “The availability of a simple, relatively inexpensive test…
A new study of women with multiple sclerosis (MS) who had previously given birth may have identified one of the mechanisms behind the lasting protective effects of pregnancy seen in MS patients. Patients who’d had children were found to have a number of differences in methylation, a type of…
The aryl hydrocarbon receptor (AHR) may facilitate or “tune” the crosstalk between the gut microbiome and the immune responses that have been implicated in multiple sclerosis (MS), a new study found. Deleting this receptor in a set of immune T-cells — a suspected factor in MS onset and progression…
Using stem cells derived from people with multiple sclerosis (MS), researchers developed cerebral organoids, or “mini-brains,” to better study the cellular and molecular mechanisms leading to the neurodegenerative disorder. Initial analysis showed that patient-derived stem cells, especially those from people with primary progressive MS (PPMS), tend to be…
Higher activity of the genes SHMT1, FAM120B, and ICA1L in the brain may increase the risk of developing multiple sclerosis (MS), a new study reports that for the first time linked two of the genes to risk for the disease. The findings may help to better understand the biological…
Genetic variations in certain genes may increase the risk of developing progressive multifocal leukoencephalopathy (PML), a serious brain infection associated with certain treatments for multiple sclerosis (MS) and other conditions, a new study shows. The findings suggest that testing for four specific genetic variant could help to predict…
A machine learning algorithm that incorporates genetic data alongside clinical and demographic information may be able to more accurately predict the severity of multiple sclerosis (MS), according to a new study. “Once independently validated, the machine learning algorithm could enable clinicians to provide patients with more accurate prognostic information,…
Genetic variants in genes mostly active in the brain and spinal cord — the central nervous system — are associated with the severity of multiple sclerosis (MS), and linked to a faster accrual of disability and greater signs of brain tissue damage, a new study found. Importantly, researchers estimated…
Variations in more than a dozen genes on the sex-determining X chromosome are more common among those with multiple sclerosis (MS) than in the general population, according to an analysis of nearly 500,000 people in the U.K. Many of these genes are known to play roles in biological processes…
A number of genetic variations related to vitamin D metabolism were not significantly associated with the severity of multiple sclerosis (MS), according to a recent study. The study, “Role of Multiple Vitamin D-Related Polymorphisms in Multiple Sclerosis Severity: Preliminary Findings,” was published in Genes. In MS, the body’s immune…
Higher numbers of immune cells circulating in the bloodstream may mean a greater likelihood of developing multiple sclerosis (MS), according to a study based on a large pool of genetic data in people of European ancestry. One particular type of immune cell, called natural killer (NK) cells, was linked…
Genetic variants that contribute to a high body mass index (BMI) during childhood are associated with an increased risk of developing multiple sclerosis (MS), a study found. The relationship is likely influenced by the fact that a higher BMI in childhood is linked to obesity in adulthood and a “longer…
Rates of multiple sclerosis (MS) were similar among Black and white people, but significantly lower in Hispanics and Asians living in southern California, a study found. These findings contrast with previous studies that have long reported lower MS rates among Black people compared to white people. Those discrepancies might…