A recent study discovered that both genetic factors and prenatal environments play a crucial role in shaping a baby's development. The research, led by A*STAR's Singapore Institute for Clinical Sciences, found that genetic differences alone account for only 25% of epigenetic variation, while environmental factors contribute up to 75%.
Researchers found that costly mating behaviors in females reduce overall reproductive productivity due to their primary role as caregivers. Artificial selection experiments revealed no change in male parental care behavior despite increased mating rates, highlighting the importance of female-led parental care.
A new study tracks over 70 flatbacks off north-west Australia's coastline using satellites, revealing a 1,000km-long migratory corridor within the Commonwealth Marine Reserve network. The research also identifies common migration routes among whales, sharks, and turtles.
The prescription of testosterone in older men is associated with unclear cardiovascular risk. Despite the benefits in younger men, ongoing studies are unlikely to provide reliable safety data due to limited sample sizes and power.
A study by Penn Medicine experts found significant geographic hotspots of increased stroke mortality in the US, with isolated areas of high and low mortality rates within these hotspots. Additionally, women are less likely to receive clot-busting rt-PA treatment at Primary Stroke Centers and non-Primary Stroke Centers, highlighting dis...
Studies by Penn neurologists investigate the potential of statin use and estrogen to delay Parkinson's onset, with promising findings. Telemedicine is also shown to improve access to specialty care for patients with Parkinson's disease.