risk factors

Women with multiple sclerosis (MS) may have a higher risk of giving birth to premature or smaller babies, but it’s unclear if using MS medications during pregnancy has an effect on the baby’s health, according to a systematic review. The long-term health outcomes of children whose mothers have…

Smoking and exposure to secondhand smoke are both associated with significantly faster disease progression in people with multiple sclerosis (MS), but snuff, a smokeless tobacco product placed behind the upper lip, seems to slow MS progression, a study in Sweden suggests. Findings also linked smoking and secondhand exposure, also…

People who drink black and green tea, coffee, and nonalcoholic beer may be significantly less likely to develop multiple sclerosis (MS), a study in Iran has found. In contrast, consuming carbonated beverages, milk, and natural fruit juices seems to increase the chances of developing the neurodegenerative condition, according to…

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 collaboration between ModeX Therapeutics and Merck, known as MSD outside North America, is expected to advance the development of ModeX’s MDX-2201, an investigational vaccine targeting the Epstein-Barr virus (EBV). A history of infection with EBV — known for causing infectious mononucleosis, or mono, and certain…

People infected with the human immunodeficiency virus (HIV) — including HIV-positive individuals who received antiretroviral treatment at some point after infection — are significantly less likely to develop multiple sclerosis (MS), a new analysis suggests.  The decrease in MS risk was particularly pronounced…

Eating too much salt can disrupt the energy metabolism of regulatory T-cells (Tregs), which normally work to control inflammation and fight autoimmunity, prompting them to adopt an inflammatory profile similar to what’s seen in multiple sclerosis (MS) and other autoimmune diseases, a study found. Even a short-term exposure to…

Teenagers with poor sleep quality or insufficient sleep — those who sleep less than seven hours a night — are 40% to 50% more likely to develop multiple sclerosis (MS) later in life than those who get adequate rest, according to a Swedish population-based study. Differences in sleep timing…

Smoking tobacco products is associated with a higher prevalence of depression and anxiety among multiple sclerosis (MS) patients, according to a recent systematic review. Across the evaluated studies, current smoking was linked to a 1.3–2.3 times higher prevalence of depression, and about a 1.2 times higher rate of anxiety.

People with relapsing-remitting multiple sclerosis (RRMS) who are receiving oral disease-modifying therapies (DMTs) are still more likely to experience a relapse or any form of disease activity if they are smokers, a study found. Researchers also observed that former smokers had a disease…

A protein in the virus that causes COVID-19 is structurally similar to several proteins targeted by the immune system in multiple sclerosis (MS), a new study shows. The results provide a potential mechanism for how COVID-19 could trigger MS-like disease in susceptible individuals, researchers said. The study, “…

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…

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…

Among people with type 2 diabetes, the use of anti-hyperglycemic medications is associated with a reduced risk of multiple sclerosis (MS) for younger individuals, but an increased risk for older patients, particularly women. That’s according to the study “Age and sex differences on anti-hyperglycemic medication…

Scientists have identified a number of antibodies that can bind to the Epstein-Barr virus (EBV) — a major risk factor for multiple sclerosis (MS) — and prevent its infection of human cells. The antibodies might offer new approaches to treat or prevent infection in groups of people most…

Welcome to “MS News Notes,” where I comment on multiple sclerosis (MS) news stories that caught my eye last week. The articles in today’s column came from the annual Congress of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS), held Oct. 26–28 in Amsterdam. Most…

Exposure to high-efficacy disease-modifying therapies (DMTs) is associated with an increased risk of cervical abnormalities in women with multiple sclerosis (MS), recent data suggest. The findings are consistent with previous reports showing these treatments may raise the risk of certain cancers, likely as a consequence of their immune-modulating…

People with progressive forms of multiple sclerosis (MS) are nearly four times more likely to have serious infections — those leading to hospitalization — than those with relapsing-remitting MS (RRMS), according to a large study in Germany. This higher infection risk was found despite the fact that, during…

People with multiple sclerosis (MS) are significantly more likely to have antibodies against the Epstein-Barr virus (EBV) — the strongest risk factor for the disease — than healthy individuals, as well as higher levels of these antibodies, according to a Spanish study. All MS patients were positive for anti-EBV…

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…

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…

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…

Most available studies suggest a connection between childhood trauma and multiple sclerosis (MS), from earlier symptom onset to potentially poorer outcomes, but more research is needed to understand this association, a review paper highlights. While several high-quality studies have been published, the scientists noted “considerable heterogeneity [variability] in methodology, including inconsistencies…

Levels of certain inflammatory proteins in the cerebrospinal fluid, the liquid around the brain and spinal cord, may help predict the risk of relapse activity for individuals with early multiple sclerosis (MS), a new study found. High levels of three such proteins were predictive of a greater risk of…

Smoking is associated with lower brain volume, more brain lesions, and greater disability and attention deficits among people with relapsing-remitting multiple sclerosis (RRMS) after 10 years, according to a study in Norway. “The findings imply that patients should be advised and offered aid in smoking cessation shortly after diagnosis, to…

Fully vaccinated multiple sclerosis (MS) patients who are treated with Ocrevus (ocrelizumab) or Gilenya (fingolimod) have a significantly higher risk of COVID-19 infection than those given other immunosuppressive therapies, according to a study in Italy. Called breakthrough infections, these post-vaccination cases of SARS-CoV-2 — the virus that causes…