Medical Xpress news

Medical Xpress / New evidence about dopamine delivery explains why current Parkinson's treatments succeed—and their limitations

A McGill-led study is challenging a popular theory about how dopamine drives movement, a discovery that could shift how scientists think about Parkinson's disease treatments.

Dec 17, 2025 in Neuroscience
Medical Xpress / Alzheimer's disease more prevalent in older people than previously thought

New research, published in Nature, has provided the first ever population-based data on the frequency of Alzheimer's disease neuropathological changes (ADNC)—a key causal factor behind the development of dementia—and ...

Medical Xpress / Microbiome may aid in healthy pregnancies by training maternal immune system

Gut microbes may play a key role in training a mother's immune system to adapt to the developing fetus during pregnancy, according to a preclinical study by Weill Cornell Medicine investigators.

Dec 17, 2025 in Obstetrics & gynaecology
Medical Xpress / How disabling one gene protects mice against Type 1 diabetes

Scientists at the University of Wisconsin–Madison have uncovered a possible way to protect key cells in the pancreas that are targeted during the development of Type 1 diabetes.

Dec 17, 2025 in Genetics
Medical Xpress / Astrocytes found to aid spinal cord repair by signaling immune response

Cedars-Sinai investigators have discovered a healing mechanism that could one day be harnessed to help treat patients with spinal cord injuries, stroke, and neurological conditions such as multiple sclerosis. Their study, ...

Dec 17, 2025 in Neuroscience
Medical Xpress / Liver cell reprogramming boosts T cell function in aging immune systems

As people age, their immune system function declines. T cell populations become smaller and can't react to pathogens as quickly, making people more susceptible to a variety of infections.

Dec 17, 2025 in Immunology
Medical Xpress / Deep-brain recording reveals how a crucial relay station shapes human visual signals

Researchers at the Netherlands Institute for Neuroscience have become the first to fully characterize cell activity from a little relay station in the center of the human brain. This aids our understanding of how the brain ...

Dec 17, 2025 in Neuroscience
Medical Xpress / RNA-based molecule enhances therapies against pancreatic cancer

A research group at the Italian Institute of Technology (IIT-Istituto Italiano di Tecnologia) has identified a candidate molecule that could improve current therapies against pancreatic cancer. The team designed the new molecule, ...

Dec 17, 2025 in Oncology & Cancer
Medical Xpress / 'Zap-and-freeze' snapshots catch brain cells in the act of learning

Researchers at Leipzig University's Carl Ludwig Institute for Physiology, working in collaboration with Johns Hopkins University, have achieved an important breakthrough in brain research. The so-called zap-and-freeze technique, ...

Dec 17, 2025 in Neuroscience
Medical Xpress / New details on role of fat transport molecules in Alzheimer's onset

A new study presents robust evidence on the role of lysophosphatidylcholines (LPCs) in the onset of Alzheimer's disease. Researchers discovered that LPCs—compounds that transport a variety of healthy fatty acids to the ...

Dec 17, 2025 in Genetics
Medical Xpress / Individual genetic differences can render some antibody-based therapies ineffective

Antibody-based therapies are used to treat numerous diseases, from cancer to rheumatic disorders and multiple sclerosis. Antibodies recognize and bind to very specific structures. This allows them to direct active substances ...

Dec 17, 2025 in Genetics
Medical Xpress / How do brains stay stable, and when might a dose of flexibility be helpful?

Young minds are easily molded. Each new experience rewires a child's brain circuitry, adding and removing synaptic connections between neurons. These wiring patterns become more stable with age, but biology has left some ...