A new study suggests that a single set of genes affects a person's perception of sweet taste, regardless of whether the sweetener is a natural sugar or a non-caloric sugar substitute.
Johanna Olson, MD, and her colleagues at Children’s Hospital Los Angeles, provide care for the largest number of transgendered youth in the U.S. and have enrolled 101 patients in a prospective observational study to determine the safety and efficacy of treatment that helps patients bring their bodies into closer alignment with their chosen gender.
Baseline characteristics of these individuals were published on July 21 in the Journal of Adolescent Health and include a significant finding: transgendered individuals have sex hormone levels consistent with the gender they were born with.
“We’ve now put to rest the residual belief that transgender experience is a result of a hormone imbalance,” says Olson. “It’s not.”
Weyl points, the 3D analogues of the structures that make graphene exceptional, were theoretically predicted in 1929. Today, an international team of Physicists from MIT and Zhejiang University, found them in photonic crystals, opening a new dimension in photonics.
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.
By Charles Choi, Inside Science -- If you poured a glass of water on a table, you would expect to get a puddle that spreads for a while and then stops. However, until now, the formulas that scientists used to describe the flow of fluids suggested the puddle should never stop spreading.
Now researchers have solved the mystery of why such a puddle would not keep spreading endlessly — the culprit is a force that acts on microscopic scales. This solution to such a simple everyday phenomenon could have far-reaching ramifications for everything from improving advanced electronics to fighting climate change.-->
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
The research also revealed that being bullied at school about their sports achievements left young female athletes with lasting psychological and social problems they carried into adulthood.
In a self-professed sports-mad country, why is this happening?-->
By Marsha Lewis, Inside Science – Each year, about 32 billion bottles of wine are bought and sold around the world. Each bottle contains about two and a half pounds of grapes, and to transform those grapes into a beverage with the perfect aroma, color, and taste, winemakers carefully monitor the complex chemistry bubbling away in wineries’ fermentation tanks.
“I would say the trickiest part of making wine is getting the flavors right,” said Linda Bisson, a yeast geneticist at the University of California, Davis.-->
A new study has found that long-term stimulant abuse had more significant effects on brain volume in women compared with men.
The researchers sought to determine how the brains of people previously dependent on stimulants were different from the brains of healthy people.
The researchers analyzed structural brain magnetic resonance imaging exams in 127 men and women, including 59 people (28 women and 31 men) who were previously dependent on cocaine, amphetamines and/or methamphetamine for an average of 15.7 years, and 68 people (28 women and 40 men) who were similar in age and were not previously dependent on those drugs.
Healing times for skin ulcers and bedsores can be reduced by a third with the use of low-intensity ultrasound - ultrasound transmits a vibration through the skin and wakes up cells in wounds helping to stimulate and accelerate the healing process.
More than 200,000 patients in the UK suffer with chronic wounds every year at a cost of over £3.1 billion to the NHS, according to background information in the article. The ultrasound treatment, which also reduces the chance of wounds getting infected, is particularly effective when treating diabetics and the elderly.