COVID Infection May Impair Semen Quality, Even After Mild Cases
Semen quality remained impaired more than 3 months after a mild COVID-19 infection, according to a small study from Spain involving unvaccinated men. Testing performed a median 100 days after infection among existing patients at one of six reproductive centers showed lower sperm counts, slower motility, and lower overall sperm quality compared with pre-infection tests […]
Outdoor Lighting at Night Tied to Diabetes Prevalence
Nighttime artificial outdoor lighting was associated with impaired glucose control and increased diabetes risk, a cross-sectional study in China showed. In a nationally representative sample of 98,658 adults, the prevalence of diabetes was 28% higher among people exposed to the greatest levels of artificial outdoor light compared with those who had the least exposure (adjusted […]
How the timing of dinner and genetics affect individuals’ blood sugar control: Connections among food intake, melatonin levels and genetics may be important for diabetes risk
Blood sugar control, which is impaired in individuals with diabetes, is affected by various factors — including the timing of meals relative to sleep as well as levels of melatonin, a hormone primarily released at night that helps control sleep-wake cycles. In research published in Diabetes Care, a team led by investigators at Massachusetts General […]
Impairments found in neurons derived from people with schizophrenia and genetic mutation
A scientific team has shown that the release of neurotransmitters in the brain is impaired in patients with schizophrenia who have a rare, single-gene mutation known to predispose people to a range of neurodevelopmental disorders. Significantly, the results from the research with human-derived neurons validated previous and new experiments that found the same major decrease […]