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

Omega-3 fatty acid reduced disease severity in MS mouse model

Treatment with docosahexaenoyl ethanolamide (DHEA), an omega-3 fatty acid found in fish oil, reduced inflammation and disease severity in a mouse model of multiple sclerosis (MS). These findings suggest that “an increase of omega-3 consumption may be beneficial to patients diagnosed with MS,” researchers said. “We believe our findings…

CNM-Au8 preserves white matter in RRMS patients’ brains: Phase 2 trial

Treatment with CNM-Au8, an experimental oral liquid therapy, led to statistically significant improvements in the health of connections between brain regions for people with stable relapsing-remitting multiple sclerosis (RRMS). That’s according to new MRI data from the Phase 2 VISIONARY-MS trial (NCT03536559), which tested CNM-Au8 against a placebo in…

‘Mini-brain’ models point to poorer oligodendrocyte growth in PPMS

Using stem cells derived from people with multiple sclerosis (MS), researchers developed cerebral organoids, or “mini-brains,” to better study the cellular and molecular mechanisms leading to the neurodegenerative disorder. Initial analysis showed that patient-derived stem cells, especially those from people with primary progressive MS (PPMS), tend to be…

Berberine, plant compound, eases disease severity in MS mouse model

Treatment with berberine, a compound found in many plants, eased disease severity and showed anti-inflammatory effects in a mouse model of multiple sclerosis (MS), a new study reports. “These results confirmed that treatment with berberine efficiently improved the disease in the animal model of MS,” the researchers wrote, noting…

Biosimilar Comparable in Safety, Efficacy to Tysabri in Phase 3 Trial

PB006, a biosimilar to Biogen’s approved treatment Tysabri (natalizumab), showed similar safety and efficacy as the original medication in people with relapsing-remitting MS (RRMS), according to data from a Phase 3 clinical trial. “The Antelope trial reported equivalence between [PB006 and Tysabri] treatment across efficacy, safety, and secondary…

Better Standards Needed for NICE Evaluation of MS Treatments: Study

In evaluating potential treatments for multiple sclerosis (MS) over the past two decades, England’s National Institute for Health and Care Excellence (NICE) made differing assumptions about whether and how the therapies’ effects will diminish over time. Such assumptions have a significant impact in estimating a therapy’s cost-effectiveness — a…

Brain Circuit Associated With MS-related Depression Identified

Researchers have identified specific areas of brain damage associated with depression in multiple sclerosis (MS), but not with other symptoms of the disease. The findings could pave the way toward new treatments for MS-related depression that work to stimulate these regions. “The more we know about the connectivity of…

Exosome-based Therapy Eases Disease in MS Mouse Model

A new therapy that delivers an anti-inflammatory compound to nervous system immune cells via cellular “shipping containers” called exosomes showed promise in a mouse model of multiple sclerosis (MS), a study reports. The study, “Resveratrol-loaded macrophage exosomes alleviate multiple sclerosis through targeting microglia,” was published in the…

How ‘Medical Gaslighting’ Affects Women With Chronic Illness: Study

Women with chronic health conditions like multiple sclerosis (MS) often experience disbelief and disenfranchisement from healthcare providers when they seek care, a new study highlights. The study, “Women’s Experiences of Health-Related Communicative Disenfranchisement,” was published in Health Communication. There is a long history of discrimination and…

Trial Testing Safety, Efficacy of Ginger Supplements in RRMS

Researchers in Iran are conducting a clinical trial to test the effects of taking ginger supplements for people with relapsing-remitting multiple sclerosis (RRMS). Ginger extracts have shown some promise in animal models of multiple sclerosis (MS), but no trial has yet determined the impact that ginger supplements may…

Top 10 MS Stories of 2022

Multiple Sclerosis News Today brought consistent coverage of the latest scientific research, developments in treatment, and clinical trials for multiple sclerosis (MS) throughout 2022. This is a list of the top 10 most-read articles we published this past year, with a brief description of each. We look forward…

MS TreatSim Program Allows Simulation of RRMS Clinical Trials

Researchers have created a computer program that can simulate clinical trial responses for relapsing-remitting multiple sclerosis (RRMS), which may improve clinical trial design for novel disease-modifying therapies. The tool, called MS TreatSim, was described in the study, “In silico clinical trials for relapsing-remitting multiple sclerosis…

Testing for 4 Gene Variations May Predict Risk of PML Brain Infection

Genetic variations in certain genes may increase the risk of developing progressive multifocal leukoencephalopathy (PML), a serious brain infection associated with certain treatments for multiple sclerosis (MS) and other conditions, a new study shows. The findings suggest that testing for four specific genetic variant could help to predict…

New Machine Learning Algorithm May Better Predict Severity in MS

A machine learning algorithm that incorporates genetic data alongside clinical and demographic information may be able to more accurately predict the severity of multiple sclerosis (MS), according to a new study. “Once independently validated, the machine learning algorithm could enable clinicians to provide patients with more accurate prognostic information,…

Novel CAR T-cell Therapy Shows Promise in MS Mouse Study

Researchers have developed a technique that uses CAR T-cells, a form of cell therapy, to specifically eliminate the self-reactive immune cells that drive multiple sclerosis (MS), without destroying healthy immune cells needed to protect against infection. “Our CAR-T cells were very effective at treating mice that have an MS-like…