A cluster of immune-related genes located in the X chromosome are more active in the X chromosome inherited from the mother than in the one from the father, a new mouse study shows. These findings may help explain why women have higher rates of autoimmune diseases, such as multiple…
risk factors
A grant awarded recently by the National Institutes of Health (NIH) will fund research to explore how brain changes in multiple sclerosis (MS) patients affect mobility. The five-year grant (1R01NS109023-01A1), totaling $3.5 million, was awarded by the National Institute of Neurological Disorders and Stroke, part of…
Human herpesvirus 6A (HHV-6A), but not a widespread variant of the virus called HHV-6B, could be one of the root causes of multiple sclerosis (MS), new research suggests. Compared to healthy people, those with MS show greater numbers of antibodies to HHV-6A viruses, reflecting greater exposure to…
A specific mutation in the FOXP3 gene, one already linked to multiple sclerosis in the Iranian population, was now also seen to increase the risk of MS in Brazilian women, a study reports. This mutation is also associated with higher-than-normal levels of TGF-β1, an anti-inflammatory molecule, a finding that requires…
Mutations in genes related to the immune system’s first line of defense are associated with a greater likelihood of more severe forms of multiple sclerosis (MS) linked to faster vision loss, a team led by Johns Hopkins Medicine researchers report. Combining high-resolution eye scans and genetic tests,…
Physical symptoms and poorer coping mechanisms are major risk factors for unemployment in younger and older people with multiple sclerosis (MS), while psychological problems have the greatest impact in middle-aged patients’ unemployment, a study suggests. These findings highlight that unemployment risk factors vary with age and call for interventions…
Higher Intellectual Ability, Early-life Physical Activity May Protect Against Cognitive Impairment in MS, Study Suggests The finding that physical activity provides a protective effect for cognitive abilities makes sense to me. I recently listened to a webinar discussing brain atrophy, which has a direct relationship with cognitive impairment, and…
Higher intellectual ability and physical activity during childhood and adolescence may help protect against the development of cognitive impairment in people with multiple sclerosis (MS), an Italian study suggests. These findings, though preliminary, suggest that intellectual enrichment and early-life physical activity may reduce the likelihood of developing cognitive deficits…
A genetic variant in the galanin gene (GAL) appears to be a risk factor for more severe multiple sclerosis (MS), nearly doubling the risk of rapidly progressive disease, particularly in patients whose disease onset occurs…
Newer disease-modifying treatments for multiple sclerosis (MS) are effective but also known to carry a greater risk of infections in a patient group already more likely to be troubled by infections — and this higher risk is particularly evident in treatment with rituximab, a DMT often used off-label in…
Occasional, or rotating, night shift work, even if done over a decade, does not seem to be directly linked to a higher risk of multiple sclerosis. But working nights for more than 20 years — and likely beginning such shifts early in a career — carries an almost three…
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 column,”Tips to Fend Off Invasion of the Common Cold” from Jan. 30, 2017.
A new large-scale genetic map implicates broad immune system dysfunction in patients with multiple sclerosis (MS), suggests a key role of brain immune cells called microglia, and indicates an MS-related gene variant located in the X chromosome. Altogether, the findings — the result of the largest reported study…
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 “Does PML worry you?” from April 18. The world of multiple sclerosis (MS)…
Infection with the human herpesvirus (HHV)-6A may increase the likelihood of having multiple sclerosis (MS), according to a new national study in Sweden. The research, “Serological response against HHV-6A is associated with increased risk for multiple sclerosis,” was presented by Anna Fogdell-Hahn, PhD, associate professor at the…
People with multiple sclerosis (MS) are more likely to develop cardiovascular diseases than the general population, according to a large Swedish nationwide study. This risk is higher for patients diagnosed before age 40, the study found. Fredrik Piehl, MD, PhD, from Karolinska University Hospital, Sweden, presented the…
Women with multiple sclerosis (MS), and people who stay in a relapsing stage or use disease-modifying therapies (DMTs) for longer periods are less likely to transition to secondary progressive multiple sclerosis (SPMS) than others, according to a study based on the Italian MS registry. But patients whose…
Females of certain species — like humans and mice — have a known ability to produce more of the gene Kdm6a than males because it’s located on the X chromosome, of which females have two. Kdm6a is also quite active in immune system T-cells, a study found, and silencing it in a mice model…
An amino acid change to phenylalanine, and a specific class I HLA gene variant are associated with greater risk for multiple sclerosis (MS), according to a study in Japanese patients. Researchers also identified an HLA variant, or mutation, associated with neuromyelitis optica spectrum disorder (NMOSD), an autoimmune condition…
Vaccines are not a risk factor for multiple sclerosis (MS), a large data analysis spanning more than 12,250 MS patients in Germany shows. Fewer vaccinations were given to people who — five years later — would be diagnosed with MS, compared to those who would be diagnosed with…
Phase 3 Trial of Ibudilast Planned for SPMS Patients with Inactive Disease, MediciNova Says Though medications are approved in the U.S. to treat primary progressive multiple sclerosis and active secondary progressive MS (SPMS), no disease-modifying treatments are approved to treat the nonactive form of SPMS. This trial aims…
People with multiple sclerosis (MS) may have a greater overall risk of developing cancer than the general population, according to the results of a 58-year follow-up study of nearly 7,000 patients in Norway. Risk seems particularly high for cancers in respiratory organs, urinary organs, and the central nervous system.
The relative risk of developing cancer was found to be higher in multiple sclerosis (MS) patients who more frequently switched between disease-modifying treatments, according to a study. In addition, researchers found an increased incidence of cancer in male MS patients from 20 to 50 years old, and in female…
A mismatch — between the ancestral immune function changes induced by the placenta and fewer modern-day pregnancies — may help explain the greater risk for multiple sclerosis (MS) and other autoimmune diseases in women in industrialized societies, according to a new study. The shift toward a sedentary lifestyle may…
New research suggests that rising blood pressure might be predictive of intracranial hemorrhage — bleeding in the brain, a serious and sometimes fatal condition — in people with multiple sclerosis (MS) who are receiving treatment with Lemtrada (alemtuzumab). The study, titled “Intracerebral haemorrhage during…
Obesity, altered lipid (fat) levels, and elevated leptin — an hormone produced by fat cells — may contribute to neuroinflammation, and worse disease severity in people with relapsing-remitting multiple sclerosis (RRMS), research has found. A study with the findings, titled “Obesity worsens central inflammation and disability in multiple…
A study found no genetic risk factors associated with vitamin D in families with a history of multiple sclerosis (MS), suggesting that the link between vitamin D deficiency and MS risk is determined by environmental factors rather than a genetic predisposition. The study “Exonic variants of genes related…
Stress-induced changes in gut bacteria, or gut microbiota, may play a significant part in the possible link between exposure to stress and the risk of autoimmune disorders such as multiple sclerosis (MS), a mouse research study says. In the study “…
New data suggests that treatment with Tysabri (natalizumab) in an extended interval dosing regimen is associated with a significantly lower risk of progressive multifocal leukoencephalopathy (PML) in patients with multiple sclerosis (MS), compared with the standard interval dosing. The data was presented by Lana Zhovtis Ryerson, MD, on May 7 at the 2019 …
New research suggests that even though pregnant women with multiple sclerosis (MS) are often viewed as high risk by their physicians, pregnancy does not seem to increase the likelihood of adverse obstetrical outcomes for those patients or their babies. The research was presented at the 2019 Annual Meeting…