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

Electrical Stimulation of Brain via Scalp May Ease Bradykinesia

Electrical stimulation given through the scalp to a brain region called the supplementary motor area may ease certain aspects of upper limb bradykinesia in people with Parkinson’s disease, a small study suggests. The study, “Transcranial direct current stimulation of supplementary motor area improves upper limb kinematics…

Clinical Trials of Parkinson’s Therapies Robust Despite COVID-19

Despite the impact of the COVID-19 pandemic, investment and interest in clinical trials of potential new treatments for Parkinson’s disease remains strong, according to a report. The study suggests that the landscape of developmental Parkinson’s treatments has changed little over the last year, with researchers noting a slight increase…

Low-frequency DBS May Help Parkinson’s Patients With Walking

Low-frequency deep brain stimulation (DBS) may help to ease balance problems due to postural instability in people with Parkinson’s disease, a small clinical trial reported. But patients with significant tremor prior to starting DBS may not find the treatment tolerable, because it can lead to the re-emergence of…

Study Examines Genetics of Parkinson’s in Latinos

Genetic variations in the gene SNCA are tied to an increased risk of Parkinson’s disease (PD) among Latinos, according to a recent analysis. Also, Latinos with African ancestry are less likely to develop Parkinson’s. The analysis is “the most comprehensive examination of PD genetics in this population [Latinos] to…

Pathogens More Abundant in Mouths of Parkinson’s Patients

Opportunistic pathogens — microorganisms that live in us all,  but under specific circumstances can cause diseases like pneumonia — are more abundant in the mouths of people with Parkinson’s disease than healthy individuals, a study reported. This finding suggests that changes in oral bacteria in patients are related to disease…

Study: Alcohol, Tobacco Use May Reduce Parkinson’s Risk

Drinking alcohol and smoking tobacco may reduce a person’s risk of developing Parkinson’s disease, according to a new study that found evidence of a cause-and-effect relationship. “It is crucial to be aware that smoking and drinking pose serious health risks to individuals,” the researchers wrote, noting there was “no…

Parkinson’s Neurons Form Atypical Networks

Parkinson’s disease brain cells form abnormal networks that might predispose the cells toward damage, according to new research done using cells in laboratory conditions. “These discoveries open the door to early diagnosis, which would allow us to carry out a premature intervention that would slow down neuronal death, and…