by Bob Yirka, Medical Xpress Linear relation between NPI score (grand-mean-centered) and facial muscle activity in the negative and neutral feedback condition. Panel a depicts an interaction between feedback and grandiose narcissism on the log-transformed and baseline-corrected orbicularis oculi (OO) muscle activity. Panel b presents the same interaction effect on the log-transformed and baseline-corrected corrugator...
Korean population study shows increased Parkinson’s disease in rheumatoid arthritis patients
by Justin Jackson, Medical Xpress Credit: Unsplash/CC0 Public Domain Research led by Kosin University College of Medicine in Korea has found a correlation between patients with rheumatoid arthritis and Parkinson’s disease. In their paper published in JAMA Neurology, researchers found a significantly higher risk of Parkinson’s disease (PD) in patients with rheumatoid arthritis (RA). In a cohort study of...
New research reveals how vitamin K helps protect against diabetes
by University of Montreal Credit: Pixabay/CC0 Public Domain Canadian researchers have identified a new role for vitamin K and gamma-carboxylation in beta cells and their potentially protective role in diabetes, achieving a first in 15 years of basic research. The discovery by scientists at Université de Montréal and its affiliated Montreal Clinical Research Institute (IRCM) is a welcome advance in the...
Disrupted gut microbiome involved in depression, finds research
by Dr. André Schmidt and Professor Claudio De Simone, Medical Xpress Uncinate fasciculus (UF) tract DTI tractography. (A) Virtual dissection of UF. Green lines at the coronal slice represents the ‘AND’ gates for the virtual dissection. Virtually dissected left and right UF shown in sagittal view. (B) Fractional anisotropy (FA) of UF. The factorial ANOVA...
Data from wearables could be a boon to mental health diagnosis
by Andrew Faught, Washington University in St. Louis Credit: CC0 Public Domain Depression and anxiety are among the most common mental health disorders in the United States, but more than half of people struggling with the conditions are not diagnosed and treated. Hoping to find simple ways to detect such disorders, mental health professionals are considering...
Gamma frequency tactile stimulation can reduce Alzheimer’s disease pathology and symptoms
Reviewed by Lily Ramsey, LLM May 18 2023 Evidence that non-invasive sensory stimulation of 40 Hz gamma frequency brain rhythms can reduce Alzheimer’s disease pathology and symptoms, already shown with light and sound by multiple research groups in mice and humans, now extends to tactile stimulation. A new study by MIT scientists shows that Alzheimer’s model mice...
Post-COVID condition varies by variant and vaccination status
By Dr. Liji Thomas, MD May 17 2023Reviewed by Benedette Cuffari, M.Sc. The emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for the coronavirus disease 2019 (COVID-19), led to an overwhelming strain on public health systems struggling to deal with the influx of cases to prevent viral transmission. As COVID-19...
Soft, stretchable electronic skin could reconstruct the sense of touch
By Lizzy Lawrence May 18, 2023 JIANCHENG LAI AND WEICHEN WANG OF BAO/STANFORD UNIVERSITY The largest organ in the body is a wonder. Skin is soft, flexible, and sensitive to every imaginable stimuli, and seamlessly plugs into the nervous system. This makes it extremely difficult to replicate — but that hasn’t stopped a team of...
How cells select DNA damage repair pathways
INSTITUTE FOR BASIC SCIENCE IMAGE: DSB REPAIR BY SMARCAD1, MSH2, AND EXO1. CREDIT: INSTITUTE FOR BASIC SCIENCE DNA is well known as the blueprint of life, necessary for an organism to facilitate living processes. DNA can be damaged by various factors such as radical metabolites, radiation, and some toxic chemicals. As DNA is a molecule...
New study explains how a common virus can cause multiple sclerosis
by Karolinska Institutet Credit: Pixabay/CC0 Public Domain Researchers at Karolinska Institutet in Sweden have found further evidence for how the Epstein-Barr virus can trigger multiple sclerosis or drive disease progression. A new study published in Science Advances shows that some individuals have antibodies against the virus that mistakenly attack a protein in the brain and spinal cord. The Epstein-Barr...