Thyroid hormone FT4 may play role in development of MS

The thyroid hormone thyroxine, or FT4, may play an indirect role in the development of multiple sclerosis (MS), which seems to be mediated by certain immune cells, a study suggests. “Future investigations should explore how these immune cells modulate MS onset and progression in the context of thyroid…

Gene variant plus mono raises MS risk: Large-scale study

The risk of multiple sclerosis (MS) is significantly higher in people who carry a variant of the HLA gene called HLA-E*01:01 and have a history of infectious mononucleosis (mono), the manifestation of an Epstein-Barr virus (EBV) infection, according to a study based on U.K. Biobank data. The higher…

Secondary contaminants from PCBs linked to higher MS risk in study

A group of manufactured chemicals called hydroxylated polychlorinated biphenyls, or OH-PCBs, which persist in the environment despite a ban on production, are associated with an increased risk of developing multiple sclerosis (MS), according to a new study. In turn, another family of compounds highly resistant to environmental breakdown, called…

Severe COVID-19 may double risk of MS: Swedish study

Hospitalization for severe COVID-19 is significantly associated with a twofold higher risk of developing multiple sclerosis (MS), according to a study involving nearly the entire population of Sweden. No increased risk of MS was found among those who tested positive for SARS-CoV-2, the virus that causes COVID-19, or received…

BCG vaccine to prevent tuberculosis not linked to MS risk: Study

Getting the Bacillus Calmette-Guerin (BCG) vaccine to protect against tuberculosis (TB) or having latent (inactive) TB in young adulthood aren’t linked to the risk of developing multiple sclerosis (MS), a Norwegian study found. The study, “BCG vaccination and multiple sclerosis risk: A Norwegian cohort study,” was published in…

Ancient DNA reveal how MS risk genes arose, spread across Europe

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…

Alcohol Consumption Is No Protection From MS: UK 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…