Disease-associated inflammatory activity of microglia — a type of immune cell with a central role in the development of multiple sclerosis (MS) — is driven in part by molecular mechanisms that are activated when microglia try to clear the corpses of dead myelin-making cells. That’s according to a new…
Causes
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 bacterial toxin in the gut — specifically, the epsilon toxin produced by Clostridium perfringens bacteria in the intestinal tract — may be a key environmental driver of multiple sclerosis (MS), according to a recent study. After finding the toxin at a higher abundance in the fecal samples of MS…
In a previous column, I wrote about the journey to my diagnosis of multiple sclerosis (MS). In it, I mentioned that the neurologist had praised me for “taking this well.” I suppose I did — at first. When I eliminated the other possibilities, I was left with an…
The risk of developing multiple sclerosis (MS) doesn’t seem to be influenced by consuming alcohol, according to a large-scale analysis in the U.K. After adjusting for known MS risk factors, including smoking, childhood obesity, socioeconomic status, or genetics, the findings remained the same. The analysis was published in Nature…
In this installment of our “Expert Voices” series, Multiple Sclerosis News Today asked Brandon Beaber, MD, to answer some of your questions about research into the causes of multiple sclerosis (MS). Beaber is a board-certified neurologist and MS specialist. He makes videos about MS on YouTube and…
A National Multiple Sclerosis Society grant is supporting an Australian-led research team aiming to better understand how the Epstein-Barr virus (EBV) may be acting as a trigger for multiple sclerosis (MS). The funding will particularly be used to understand what molecules are being targeted by lymphocytes, immune cells that…
Infection with the stomach bacterium Helicobacter pylori (H. pylori) does not appear to protect against the development of multiple sclerosis (MS), a review study has found. However, when researchers focused on studies that used microscopic assessments of tissue instead of other diagnostic methods to detect H. pylori, their data…
In multiple sclerosis (MS), disease-causing immune T-cells enter the brain and spinal cord through the protective soft membranes covering them, called the leptomeninges, a new study shows. The findings “suggest that patients with MS could benefit from immunomodulatory therapies that target the leptomeninges,” the researchers wrote, noting these surrounding…
How much a country spends on healthcare is associated with the prevalence of multiple sclerosis (MS), with higher spending nations seeing a greater number of MS cases, a study found. MS cases might be underestimated in low-income nations that put less money into the healthcare system, resulting in reduced…
People who had infectious mononucleosis — a contagious disease for which the Epstein-Barr virus (EBV) is the leading cause — had a higher incidence of multiple sclerosis (MS) in the 10 years following diagnosis compared with individuals not diagnosed with the virus, a study found. This link was particularly…
The newest recipients of the MS Australia incubator grants will seek novel ways to prevent and treat multiple sclerosis (MS) and explore the prevalence and incidence of the neurodegenerative disorder in different parts of the country. One scientist will use the funding to explore disease risk factors — and…
The risk of developing multiple sclerosis (MS) is lower in women with a history of pregnancy and is not affected by the use of oral contraceptives, according to a recent meta-analysis of four published studies. However, the four studies, conducted in the U.S. and Iran, showed considerable variability in…
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…
Women who were exposed to sexual or emotional abuse as children may be at an increased risk of developing multiple sclerosis (MS) later in life, according to a large study in Norway. The risk was even higher among patients who experienced a combination of two or more types of abuse in…
Immune system reaction to casein, a protein in cow’s milk, can trigger an inflammatory neurological disease in mice that’s similar to multiple sclerosis (MS) and includes the loss of myelin, a study reported. “These results identify how consumption of milk and milk products may exacerbate the autoimmune response in…
Adverse childhood experiences (ACEs) did not increase the risk of multiple sclerosis (MS) development and were not associated with worse clinical outcomes, a recent study reported. These findings add to the complexity of the potential relationship between ACEs and MS that has emerged across several research studies. “Our primary…
Similarities between an Epstein-Barr virus (EBV) protein and a brain protein called GlialCAM may explain why EBV infection increases the risk of multiple sclerosis (MS), results from a new study show. Due to the structural resemblance of the two proteins, B-cells — a type of immune cell that is critical…
Infection with the common Epstein-Barr virus (EBV) increases the risk of developing multiple sclerosis (MS) by 32 times — the strongest link yet — according to a study looking at two decades of data from more than 10 million U.S. military members. “The hypothesis that EBV causes MS has been…
Children and young adults who spend more time outdoors in the sunshine are less likely to develop multiple sclerosis (MS), according to a new study, which suggests that sunshine might help to protect against the disease. “Advising regular time in the sun of at least 30 minutes daily especially…
A new subset of type 3 innate lymphoid cells (ILC3s) — a type of immune cell known mostly for its anti-inflammatory and immunosuppressive effects in the gut — infiltrates the brain and promotes the abnormal immune attacks that drive multiple sclerosis (MS), according to a study in a mouse model…
Australia’s National Health and Medical Research Council (NHMRC) is giving a total of AU$6.75 million (about $5 million) in grants to advance research into multiple sclerosis (MS), including risk factors for the disease, preventing falls, and harnessing viral-immune system interactions to improve patients’ lives. The three investigator grants,…
The presence of a light-sensing protein in the brain during the early stages of fetal development may help to explain why certain neurological diseases, like multiple sclerosis (MS), are more common among people born at specific times of the year, a study found. The researchers, who noted that people…
An interaction between immune cells and glia cells in the brain, mediated by the C1q complement system protein, appears to drive chronic inflammation in multiple sclerosis (MS), new research shows. Inhibiting this protein helped to resolve inflammation in mouse models of MS and in tissue cultures, its researchers found.
Pro-inflammatory T helper 17 cells, known as Th17 cells — a type of immune cell known to play a role in multiple sclerosis (MS) — directly interact with myelin-producing cells, promoting their damage and death, according to a study in a mouse model of MS and in samples from…
Toxoplasmosis, an infection by the parasite Toxoplasma gondii, has a protective effect against the development of multiple sclerosis (MS), according to a review study. Specifically, people who had been infected with the parasite were 32% less likely to develop MS than those who never had toxoplasmosis. While these findings support T. gondii…
Experiencing serious infections during adolescence is tied to an increased risk of developing multiple sclerosis (MS) later in life, but those occurring in childhood don’t increase MS risk, according to a new Swedish study. The study also found that certain types of infections, especially those that affect the central…
Certain fat molecules produced by gut microbes, which have protective immune-suppressing effects and may protect against multiple sclerosis (MS), are lower in women than in men, a case-control study has found. These findings may explain the greater MS susceptibility observed in women, the scientists…
Rates of multiple sclerosis (MS) appear to rise with measures of prosperity, occurring more frequently in developed countries, according to a recent study. The reasons for such disparities may be linked to better access to diagnostic facilities in developed countries, as well as increased exposure to factors, such as…
Children of diabetic mothers may be at more risk of developing multiple sclerosis (MS), a Danish national study suggests. The study, “Maternal diabetes and risk of multiple sclerosis in the offspring: A Danish nationwide register-based cohort study,” was published in the Multiple Sclerosis Journal. Previous studies have suggested a…