Medicine & Health
Updates every hour. Last Updated: 6-Oct-2025 23:11 ET (7-Oct-2025 03:11 GMT/UTC)
7-Apr-2025
Proteins shown to act as ‘guardians’ to keep cells’ energy making mitochondria safe
Johns Hopkins MedicinePeer-Reviewed Publication
Scientists at Johns Hopkins Medicine say they have discovered how a group of proteins linked to Parkinson’s disease and amyotrophic lateral sclerosis act as “guardians” of mitochondria, small organelles, or subunits, within a cell that make and store energy and are found in almost all plants and animals.
- Journal
- Nature
- Funder
- NIH/National Institutes of Health, NIH/National Institutes of Health, NIH/National Institutes of Health, Human Aging Project and the Adrienne Helis Malvin Medical Research Foundation
7-Apr-2025
New research from The Lundquist Institute finds ketogenic diet-induced high cholesterol does not predict heart disease
The Lundquist InstitutePeer-Reviewed Publication
The study, published today in the Journal of the American College of Cardiology: Advances, recruited 100 metabolically healthy individuals following a long-term low-carbohydrate ketogenic diet who developed elevated levels of LDL cholesterol–dubbed Lean Mass Hyper-Responders (LMHRs). The researchers found that traditional cholesterol markers (ApoB and LDL-C) were not associated with baseline heart disease or progression in this population, calling for investments in further research and personalized treatment strategies.
- Journal
- Journal of the American College of Cardiology
7-Apr-2025
Neighborhood disadvantage, individual experiences of racism, and breast cancer survival
JAMA NetworkPeer-Reviewed Publication
About The Study: In this cohort of Black women, living in disadvantaged neighborhoods was associated with a higher mortality from breast cancer, even after accounting for stage at diagnosis, treatments, and individual-level lifestyle factors. Community-level interventions to reduce environmental stressors and improve conditions in disadvantaged neighborhoods, including access to high-quality cancer care, may be critical to reducing racial disparities in breast cancer survival.
- Journal
- JAMA Network Open
7-Apr-2025
Cardioprotective glucose-lowering agents and dementia risk
JAMA NetworkPeer-Reviewed Publication
About The Study: While cardioprotective glucose-lowering therapies were not associated with an overall reduction in all-cause dementia, this meta-analysis of randomized clinical trials found that glucose lowering with glucagon-like peptide-1 receptor agonists (GLP-1RAs) was associated with a statistically significant reduction in all-cause dementia.
- Journal
- JAMA Neurology
7-Apr-2025
Molecules that fight infection also act on the brain, inducing anxiety or sociability
Massachusetts Institute of TechnologyPeer-Reviewed Publication
MIT scientists find the protein IL-17 that fights infection also acts on the brain, inducing anxiety or sociability. This adds to evidence that immune molecules can influence behavior during illness.
- Journal
- Cell
- Funder
- Jeongho Kim and the Brain Impact Foundation Neuro-Immune Fund, Simons Foundation Autism Research Initiative, Simons Center for the Social Brain, Marcus Foundation, N of One: Autism Research Foundation, Burroughs Wellcome Fund, Picower Institute Innovation Fund, MIT John W. Jarve Seed Fund for Science Innovation, Young Soo Perry and Karen Ha, National Institutes of Health
7-Apr-2025
Invasive group A streptococcal infections in 10 US states
JAMA NetworkPeer-Reviewed Publication
About The Study: Invasive group A Streptococcus infections increased substantially in 10 U.S. states during a surveillance period from 2013 to 2022. Accelerated efforts to prevent and control group A Streptococcus are needed, especially among groups at highest risk of infection.
- Journal
- JAMA