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

Antibodies against MLC1 protein may drive MS: Study

Antibodies against a protein found in neurons and in nerve supporting cells, may play a role in driving multiple sclerosis (MS), a study indicates. Researchers examined immune responses against more than 23,000 human proteins, and the MLC1 protein emerged as one of the top hit proteins targeted by immune…

Immune system-gut bacteria interactions altered in MS: Study

Interactions between the body’s immune system and bacteria that live in the digestive tract — essentially, a person’s gut — become disrupted in multiple sclerosis (MS), a new study by U.S. researchers found. The human intestines are home to billions of bacteria and other microorganisms, collectively known as the…

Implantable scaffold aids insights into PPMS, treatment strategies

Using an implantable scaffold to collect immune cells in mice, researchers have gained insights into the immunological mechanisms driving primary progressive multiple sclerosis (PPMS). Based on the findings, the scientists developed a treatment strategy to block specific inflammatory molecules, which eased MS severity in the mouse model. The study,…

Living with RRMS: The ‘space between hope and grief’

Navigating the uncertainty of living with relapsing-remitting multiple sclerosis (RRMS) brings a number of challenges, a study shows. That uncertainty is best described as the intangible, difficult to define space between hope — the sense that things might get better or at least not turn out so badly —…

Australia, New Zealand get consensus guidelines for MS care

Experts in Australia and New Zealand have published the first consensus guidelines for the care of adults with multiple sclerosis (MS) in those countries, a step designed to help general practitioners and neurologists navigate the new MS treatment landscape. “Through these guidelines, we aim to support safe, timely and…

Pediatric-onset MS relapse rates rise with start of menstruation

The rate of relapses in children with pediatric-onset multiple sclerosis (POMS) tends to increase around the time that menstruation begins, a new study reports. The findings suggest hormonal changes at the onset of puberty may trigger higher disease activity. The use of oral and infusion disease-modifying therapies (DMT)…

Smoking, obesity interact to drive faster MS progression, study finds

Smoking and obesity are both independently associated with faster disease progression in multiple sclerosis (MS), but when both risk factors are present together, a synergistic effect results in faster disease progression than can be explained by either alone. “Smoking and obesity significantly interacted to increase the risk of disability…

Phase 2 trial of obexelimab recruiting adults with relapsing MS

A Phase 2 clinical trial is currently recruiting adults with relapsing types of multiple sclerosis (MS) to investigate Zenas Biopharma’s experimental therapy obexelimab as a weekly subcutaneous, or under-the-skin, injection, the company has announced in a press release. The study, called MoonStone (NCT06564311), is open to…

ECTRIMS, EBMT suggest stem cell transplant for some with RRMS

Stem cell transplant can be considered a viable treatment option for people with relapsing-remitting multiple sclerosis (MS) who are young, early in the disease course, do not have other major health issues, and have failed to respond to available medications, according to a new set of recommendations. The procedure…

TG developing under-the-skin version of MS therapy Briumvi

TG Therapeutics is working to develop a subcutaneous, or under-the-skin, version of Briumvi (ublituximab-xiiy), its approved therapy for relapsing forms of multiple sclerosis (MS). The company said it plans to start a pivotal clinical program this year which could support an application seeking approval of the…

Menopause may accelerate the progression of MS: Study

For women with multiple sclerosis (MS), disability starts to worsen significantly faster after menopause, according to a new study. “The study shows that menopause represents a unique factor in MS progression, even when we take into consideration the effects of aging,” Riley Bove, MD, study co-author at the University…

IRX4204 promotes myelin repair, improves gait in MS mouse model

IRX4204, a compound that Io Therapeutics is developing to treat neurological diseases, facilitated myelin repair and improved walking abilities in a mouse model of multiple sclerosis (MS) in a recent study, scientists report. “Our findings support the therapeutic potential of IRX4204 to promote functional neurologic recovery in…

Long-term Tecfidera slows MS disability progression in large trial

Treatment with Tecfidera (dimethyl fumarate) significantly reduces relapse rates for people with multiple sclerosis (MS), and most MS patients on the approved therapy remain free from disability progression for several years. That’s according to a final analysis from the Phase 4 ESTEEM clinical trial (NCT02047097), which tracked…

MS treatments don’t raise miscarriage, birth defect risk: Study

Most treatments for multiple sclerosis (MS) don’t increase the risk of major problems when used during pregnancy, an analysis showed. “We found that most therapies were not associated with an increased risk of miscarriage, premature birth or major birth defects,” Kerstin Hellwig, MD, study co-author and MS specialist at…

Top 10 MS news stories of 2024

The team at Multiple Sclerosis News Today has brought our audience the latest news about treatments, scientific research, and clinical trials in multiple sclerosis (MS) throughout 2024. Here is a list of the top 10 most-read articles we published this year. We look forward to continuing to serve…

Paramagnetic rim lesions linked to MS disability progression

A specific type of brain lesion called a paramagnetic rim lesion, or PRL, is associated with worse disability over time in people with multiple sclerosis (MS), but available disease-modifying therapies (DMT) can lower the chances of the appearance of these lesions, according to two studies published by scientists…

Brain damage in MS children linked to lower socioeconomic status

Children with multiple sclerosis (MS) who come from poorer families or other disadvantageous circumstances tend to have more inflammation and irreversible brain tissue loss, a new study reports. “Our findings suggest that social disadvantage in childhood can have lasting effects on MS severity,” Kimberly A. O’Neill, MD, study coauthor…

High cholesterol linked to MS cognitive impairment in study

Higher cholesterol levels are associated with worse cognitive impairments in people with multiple sclerosis (MS), a study reported. The findings imply that medications or lifestyle changes that reduce cholesterol levels may be useful for addressing MS cognitive impairment, researchers said. The study, “Lipid measures are associated…