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

New Method Detects Degeneration in Brain Region Key to Movement

Scientists have developed a new technique that can detect Parkinson’s disease-related degeneration in a part of the brain, called the striatum, that’s key to movement. This type of analysis — which can be done for individuals with early-stage Parkinson’s — will allow researchers to distinguish different subgroups within this…

Delirium Common But Often Not Noted on Medical Records

Although common, delirium often goes undocumented in the medical records of many Parkinson’s patients who experience the symptoms, results from a new study show, and those who have been diagnosed with delirium often lack instructions for future care. The study, “Documentation and Diagnosis of Delirium in Parkinson’s…

New Method May Help Diagnose Parkinson’s Using a Blood Test

A novel method that involves looking for disease-associated alpha-synuclein inside of neuron-derived extracellular vesicles — packets of cellular cargo that are released by nerve cells in the brain, and can be isolated in a person’s blood — may help to diagnose and monitor the progression of Parkinson’s disease. A…

ABBV-951 Extends ‘On’ Time More Than 3 Hours a Day

ABBV-951, AbbVie‘s experimental under-the-skin formulation of levodopa/carbidopa, was generally well-tolerated and increased average “on” time by more than three hours among people with Parkinson’s disease. Those results from a Phase 3 open-label clinical trial were shared at the 8th European Academy of Neurology (EAN) Congress in Vienna, Austria, in…

Butyrate Made by Gut Bacteria Linked to Depression

Among people with Parkinson’s disease, lower levels of a bacterial compound called butyrate in the gut are associated with more severe depression, a new study indicates. Results also revealed that altered butyrate levels in Parkinson’s patients are associated with epigenetic changes in these individuals’ cells. The study, “…

Speech Problems Evident in Vocal Tract Length Might ID Parkinson’s

Analyses that estimate the length of a person’s vocal tract, which involves controlling muscles used in speech, could help to identify Parkinson’s disease, according to a new study. “The standard clinical method for classifying parkinsonian voice is by perceptual evaluation, which however is subjective,” the researchers wrote. “Computerized voice analysis…

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