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

Dark rim on MS lesions seen with standard MRI may mark activity

An imaging feature called the T1-dark rim, which is visible on standard MRI scans of people with multiple sclerosis (MS), could help to identify paramagnetic rim lesions (PRLs), a study suggests. PRLs are regions of chronic active inflammation that cause ongoing nerve damage. They’re associated with disease activity and…

Treatment of progressive MS hits milestones in recent years: Review

Treatment options for progressive types of multiple sclerosis (MS) have expanded dramatically over the past decade, and several promising experimental therapies are in late stages of clinical development, a new review paper highlights. The study, “Clinical trials for progressive multiple sclerosis: progress, new lessons learned, and…

Online therapy platform found to boost mental health of patients

COMPASS, a digital tool that provides support for managing the daily challenges of living with a long-term health condition such as multiple sclerosis (MS), significantly reduces psychological distress and improves mental health in these patients, data from a randomized clinical trial show. The intervention consists of multiple online modules…

Researchers call for more pragmatic clinical trials in MS

Few multiple sclerosis (MS) clinical trials have used a so-called pragmatic design, which evaluates the effectiveness of interventions in real-life routine practice, a study has found. Because such trials are better able to emulate conditions in real-world clinical practice and provide solid and more actionable evidence to inform treatment…

Real-world data can be used to compare efficacy of MS treatments

Real-world data collected from a registry can be used to reliably compare the effectiveness of different multiple sclerosis (MS) treatments, so long as appropriate methodologies are employed to account for the messiness — what researchers call confounding bias — of real-world data, according to a new study. While registries…

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…

Top 10 MS stories of 2023

Throughout 2023, Multiple Sclerosis News Today brought consistent coverage to our readers of the latest scientific research, developments in treatment, and clinical trials for multiple sclerosis (MS). Here is a list of the top 10 most-read stories we published last year, along with a brief description. We look…

NK cells may hold key to link between viral infections, MS

Natural killer (NK) cells, a type of immune cell, are critical for preventing an immune response against an infecting virus from triggering multiple sclerosis (MS), a new study shows. “Our study demonstrates that the main protective factors against MS are distinct cytotoxic [cell-killing] NK cell responses,” the researchers wrote…