Scientists discovered a PAX9 gene mutation causing congenitally absent molars in a Houston family, revealing insights into the genetics of human tooth development. The study, published in Nature Genetics, used molecular epidemiology and DNA analysis to identify the responsible gene, which is activated early in tooth development.
A study of middle-aged women found that high consumption of zinc, magnesium, potassium, fiber, and vitamin C was linked to higher bone mineral density and reduced evidence of bone loss. Moderate alcohol intake also appeared to have a positive effect on bone health.
According to a NIH/NIAAA study, approximately 28.6% of U.S. children are exposed to familial alcohol dependence or abuse before age 18. Children of alcoholics face increased risk of psychopathology and medical problems, including an increased risk for developing alcohol abuse or alcoholism.
Researchers found that cold temperature needed to preserve livers for transplant also kills sinusoidal endothelial cells, highly specialized liver cells. This discovery suggests a possible drug target and could lead to changes in liver transplant protocols.
Researchers found that the presence of alcohol in red wine had no additional benefit to the body's absorption of flavonoids, including catechin. Blood concentrations of catechin rose sharply in both groups but persisted for less time in those who drank alcoholic beverages.
Researchers found that a short distance of 2.53 angstroms between iron atoms in peroxide-bridged ferritin intermediate favors biomineralization process over oxygen activation. The study uses analytical techniques to probe molecular structure and collaboration with experts from different disciplines.