Marisa Wexler, MS,  senior science writer—

Marisa holds a Master of Science in cellular and molecular pathology from the University of Pittsburgh, where she studied novel genetic drivers of ovarian cancer. Her areas of expertise include cancer biology, immunology, and genetics, and she has worked as a science writing and communications intern for the Genetics Society of America.

Articles by Marisa Wexler

Ultraviolet B therapy may help stabilize MS inflammation

Ultraviolet light therapy may help reduce inflammation and disease severity in people with multiple sclerosis (MS), according to data from a small Phase 1 clinical trial. Researchers used Octave’s MS Disease Activity (MSDA) scale — a clinically validated test for monitoring MS disease activity — and found the majority…

High-carb diet may raise MS risk, especially for women: Study

Eating more carbohydrates is significantly associated with a higher risk of developing multiple sclerosis (MS), particularly among women and people younger than 60, according to a study based on data from the U.K. “Higher intakes of total carbohydrates, total sugars, fiber, fructose, and glucose were significantly associated with increased…

Myelin damage may lead to seizures in MS, mouse study finds

Seizures in people with multiple sclerosis (MS) may be driven by changes in levels of certain brain signaling molecules, implying that targeting these molecules may be a viable strategy to treat MS-related seizures, according to new research done in a mouse model. “If the same transporters and receptors are…

Two compounds with potential for myelin repair in MS identified

Researchers have identified two experimental medications that may promote myelin repair in people with multiple sclerosis (MS). The two compounds have shown promise in cell and animal models, and preclinical work is ongoing to bring them into clinical testing. The compounds were identified by academic researchers, but the program…

ECTRIMS 2025: Standard Ocrevus dose holds up in PPMS

Increasing the dose of Ocrevus (ocrelizumab) by two- or threefold, depending on a person’s weight, did not provide additional benefit in slowing disability progression compared with the standard regimen in people with primary progressive multiple sclerosis (PPMS). That’s according to top-line data from the Phase 3b GAVOTTE…

ECTRIMS 2025: Long-term benefits seen with Mavenclad use in MS

Most people with relapsing forms of multiple sclerosis (MS) given Mavenclad (cladribine) did not experience confirmed disability progression for at least four years after starting on the approved therapy, according to new Phase 4 trial data. The results come from the CLARIFY-MS (NCT03369665) and MAGNIFY-MS (NCT03364036)…

ECTRIMS 2025: Drug combo shows promise for myelin repair in trial

Combining the diabetes medication metformin and the antihistamine clemastine significantly increased myelin repair in people with relapsing-remitting multiple sclerosis (RRMS), according to results from a Phase 2 clinical trial. However, the effects were small, and participants showed no improvements in disability or visual function after six months of treatment.

New McDonald criteria aim for faster MS diagnosis, treatment

Doctors will be able to diagnose multiple sclerosis (MS) faster and with greater accuracy — allowing patients to access treatment and support earlier — following an update to the McDonald criteria, the official guidelines used to diagnose the condition. The revision reflects advances in understanding the biology of…

New patent covers progressive MS drug for patients in US

Immunic Therapeutics will receive a new U.S. patent covering its experimental therapy, vidofludimus calcium, and some related molecules in people with multiple sclerosis (MS). Titled “Treatment of multiple sclerosis comprising DHODH inhibitors,” the patent explicitly covers the use of the molecules in progressive types of MS, including primary…

Most MS neurologists in the US have received pharma payments

In the U.S., nearly 4 out of 5 neurologists prescribing therapies for multiple sclerosis (MS) have received payments from pharmaceutical companies that market MS treatments, according to a new analysis. The findings indicate that neurologists who receive payments from a company are significantly more likely to prescribe that…

Study finds potential strategy for myelin repair in MS

Targeting a protein called SOX6 could be an effective way to promote myelin repair in people with multiple sclerosis (MS), a study found. Researchers said the results point to a way for new therapies to treat the condition. The study found SOX6 could control the maturation of oligodendrocytes, the…

Ketogenic diet shows promise for MS, but more research needed

A ketogenic diet — which involves eating a very low amount of carbohydrates and replacing them with fat — may help ease fatigue, improve neurological function, and boost life quality in people with multiple sclerosis (MS), according to a new analysis. Researchers stressed that available data on the effects…