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

MS patients prefer Tysabri injection to intravenous infusion: Study

People with multiple sclerosis (MS) who are being treated with Tysabri (natalizumab) tend to prefer receiving the medication as a subcutaneous (under-the-skin) injection rather than an intravenous (into-the-vein) infusion, according to new data from an observational study. “Based on current data, there is a trend toward patientsā€™ preference…

AAN 2024: Sustained myelin, nerve cell gains with long-term CNM-Au8

Long-term treatment with Clene Nanomedicine‘s experimental oral therapy CNM-Au8 led to signs of sustained improvements in nerve and myelin health for people with relapsing-remitting multiple sclerosis (RRMS) over three years, according to new data from the VISIONARY-MS clinical trial. The findings continue to support Clene’s plans to…

Patients deem AI-based ChatGPT more empathetic than neurologists

When presented with medical information authored by neurologists or by ChatGPT, people with multiple sclerosis (MS) reported similar satisfaction with both, but said the artificial intelligence platform was more empathetic. That’s the result of the study, “ChatGPT vs. neurologists: a cross-sectional study investigating preference, satisfaction ratings…

New assay measures molecular immune response to EBV

Scientists have created an assay that can measure immune cells’ inflammatory attack against the Epstein-Barr virus (EBV), a known risk factor for multiple sclerosis (MS). Researchers found preliminary evidence that some MS treatments, but not others, may alter the immune system’s response to EBV. The scientists said the…

Early high-efficacy MS treatment recommended for young patients

High-efficacy therapies given early can significantly reduce the risk of disability worsening in children and adolescents with multiple sclerosis (MS), particularly when treatment is started while patients have fairly minimal disability, according to a new study. While lower-efficacy therapies were also associated with a reduced risk of disability progression…

Smartphone, wearable device data found reliable to monitor MS: Study

Measurements from smartphones and wearable devices like smartwatches can reliably provide clinically meaningful data to monitor multiple sclerosis (MS), a new study from Switzerland reports. While daily data from such devices did not prove sufficiently reliable in this small study, information generated weekly ā€” across more than 45 different…

Exposure to household chemicals harms myelin-making cells

Two types of chemicals in household disinfectants and furniture can disrupt the development of oligodendrocytes, the brain cells chiefly responsible for making myelin, a new study shows. The finding suggests that exposure to these chemicals may be a risk factor for disorders related to myelin such as…

Exercise improves mental health, life quality for MS patients: Analysis

Getting physical exercise can improve subjective well-being and health-related quality of life for people with multiple sclerosis (MS), a new meta-analysis shows. “Exercise interventions, especially aerobic or combined aerobic and resistance training, should be implemented in clinical practice to promote mental health” and health-related quality of life in people…

ACTRIMS 2024: Progressive MS patients show gains in NG-01 OLE

Repeated treatment with the mesenchymal stem cell therapy NG-01 led to gains in mobility and cognition, along with patient-reported quality of life, for most people with progressive multiple sclerosis (MS) in an extension study. Markers of nerve damage were also reduced, indicating significant nerve-protecting effects. Dimitrios Karussis, MD,…

ACTRIMS 2024: Molecule made by gut bacteria seen to ease MS in mice

Supplements of indole 3-lactate (ILA), a molecule made by gut bacteria, significantly reduced disease severity and promoted myelin repair in mouse models of multiple sclerosis (MS). That’s according to new findings presented by Larissa Jank, PhD, a postdoctoral researcher at Johns Hopkins University, at the Americas Committee for Treatment…

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…