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Researchers have identified a genetic mutation associated with the appearance of premature aging and severe loss of body fat in children.

Researchers at the Translational Genomics Research Institute (TGen) Center for Rare Childhood Disorders found that the appearance of premature aging, a neonatal form of Progeroid syndrome, in a 3-year-old girl was caused by a mutation in the gene CAV1, according to a study published in PLOS ONE. 

In what they say is the first study that looks at a variety of healthcare providers and their implicit attitudes towards lesbian women and gay men, scholars say they have found there is widespread implicit bias toward lesbian women and gay men. 

A loss of dietary diversity during the past 50 years could be a contributing factor to the rise in obesity, Type 2 diabetes, gastrointestinal problems and other diseases, according to a lecture by Mark Heiman, vice president and chief scientific officer at MicroBiome Therapeutics, at IFT15: Where Science Feeds Innovation hosted by the Institute of Food Technologists (IFT) in Chicago.

Heiman said diet is the principal regulator of the GI microbiome, the ecosystem of the human GI tract. The microbiome contains trillions of bacteria (microbiota) in a solution of unabsorbed macro- and micro-nutrients. The microbiota use the remnants from digestion to create new signaling molecules that allow the microbiota to communicate with a person's metabolic and GI regulatory system.

Are the first signs that someone is at risk of developing cardiovascular disease detectable in toddlers and preschoolers?

There's evidence that low vitamin D levels in adults are linked to cardiovascular disease, as well as other health issues such as obesity, hypertension and diabetes. But that link hadn't been studied in children. Researchers in Toronto examined vitamin D levels in children ages one to five and the non HDL- cholesterol level in their blood, a marker of cardiovascular health. (Non-HDL cholesterol is basically all of a person's cholesterol minus his or her HDL or good cholesterol.)

Music training, begun as late as high school, may help improve the teenage brain's responses to sound and sharpen hearing and language skills, suggests a new study. The research indicates that music instruction helps enhance skills that are critical for academic success. 

The gains were seen during group music classes included in the schools' curriculum, suggesting in-school training accelerates neurodevelopment.

In a new study, women considered the position and shape of the urethral opening to be the least important aspects of a penis' appearance.

They also perceived the genitals of men who underwent surgery to treat distal hypospadias--a congenital condition in which the opening of the urethra is on the underside of the penis--to be as normal-looking as nonaffected, circumcised genitals.

"The information may help prevent the development of shame or impaired genital perceptions about penile appearance," said Dr. Norma Ruppen, lead author of the study.

Citation: Ruppen-Greeff, N.K., Weber, D.M., Gobet, R. & Landolt, M.A., 'What is a good looking penis? How women rate the penile appearance of men with surgically corrected hypospadias', Journal of Sexual Medicine