Mutations of a gene that regulates formation of blood vessels in the brain of vertebrates can lead to potentially deadly aneurysms in adults, Yale School of Medicine researchers report in the December issue of Nature Medicine. New Haven, Dec 09, 2021.- Saccular brain aneurysms affect nearly 3% of the humanContinuar Leyendo
Researchers examined autopsy tissue samples of hearts from patients who died early in the COVID-19 pandemic. Frequent and extensive blood clots (thromboses) within heart vessels were found as anticipated, but the type of changes in the endothelial cells lining the heart that are typically observed in thromboses were absent. Instead,Continuar Leyendo
A group of immune cells that normally protect against inflammation in the gastrointestinal tract may have the opposite effect in multiple sclerosis (MS) and other brain inflammation-related conditions, according to a new study by Weill Cornell Medicine and NewYork-Presbyterian researchers. The results suggest that countering the activity of these cellsContinuar Leyendo
Immune checkpoint inhibitors can boost the immune system’s response to tumor cells, but the medications tend to be ineffective against certain cancers, especially colorectal and pancreatic cancers. A new clinical trial led by investigators at Massachusetts General Hospital (MGH) indicates that combining radiation with immune checkpoint inhibitors may be anContinuar Leyendo
The tapered cone shell is popular among seashell collectors for its colorful patterns, but the smooth mottled shells are also home to the cone snail which is capable of spewing a potent insulin-like venom that can paralyze its prey. Researchers at the University of New Hampshire have found that variantsContinuar Leyendo
People with Prader Willi syndrome, a genetic disorder, have an insatiable appetite. They never feel full, even after a hearty meal. The result can be life-threatening overeating and obesity. Philadelphia, Nov 18, 2021.- According to a new study, their constant hunger results in part to disordered signaling in the brain’sContinuar Leyendo
A team led by investigators at Massachusetts General Hospital (MGH) has shown that people living with amyotrophic lateral sclerosis (ALS), or Lou Gehrig’s disease, who carry a mutation in the C9orf72 gene exhibit elevated levels of tau and phosphorylated tau protein in the motor cortex region of the brain. TheContinuar Leyendo
A large analysis of health records from 87 health care centers across the United States found that people taking a class of antidepressants called selective serotonin reuptake inhibitors (SSRIs), particularly fluoxetine, were significantly less likely to die of COVID-19 than a matched control group. San Francisco, Nov 15, 2021.- TheContinuar Leyendo
University of Calgary researchers probing the gut — «the inner tube of life» — have for the first time discovered specific factors in its workings that in the future may help improve treatment for patients facing gut damage or gastrointestinal disease. Calgary, Nov 15, 2021.- The findings from Snyder InstituteContinuar Leyendo
Imagine you are in a meadow picking flowers. You know that some flowers are safe, while others have a bee inside that will sting you. How would you react to this environment and, more importantly, how would your brain react? This is the scene in a virtual-reality environment used byContinuar Leyendo
