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The hormone kisspeptin could be a safer and more effective way for harvesting eggs during IVF treatment, according to a new study presented today at the Society for Endocrinology annual conference in Edinburgh.
During conventional IVF treatment, doctors inject patients with the hormone human chorionic gonadotropin (hCG), which helps ovaries mature eggs that are later harvested to mix with sperm to make an embryo. A potential side effect during this step of IVF is ovarian hyper-stimulation syndrome (OHSS) - a potentially life-threatening condition.
Just how bad was T. rex's bite? New research from the University of Bristol has found that the feeding style and dietary preferences of dinosaurs was closely linked to how wide they could open their jaws.
Using digital models and computer analyses, Dr Stephan Lautenschlager from Bristol's School of Earth Sciences studied the muscle strain during jaw opening of three different theropod dinosaurs with different dietary habits. Theropods (from the Greek for "beast-footed") were a diverse group of two-legged dinosaurs that included the largest carnivores ever to walk the Earth.
Scientists have developed a 3-D printing method capable of producing highly uniform 'blocks' of embryonic stem cells.
These cells - capable of generating all cell types in the body - could be used as the 'Lego bricks' to build tissue constructs, larger structures of tissues, and potentially even micro-organs.
The results are published today, Wednesday 4th November, in the journal Biofabrication.
Chemsex - sex under the influence of illegal drugs - needs to become a public health priority, argue experts in The BMJ this week.
The authors - specialists working in sexual health and substance abuse in London - say the growing popularity of chemsex may be putting users at risk of HIV and other sexually transmitted infections as well as serious mental health problems through drug dependence.
Chemsex describes intentional sex under the influence of psychoactive drugs, mostly among men who have sex with men.
An analysis of country-to-country aid for health over a 20-year period suggests wide variations among donor countries' giving that do not always reflect recipient countries' health needs.
The study, believed to be the first to examine these types of differences among bilateral, or country-to-country, donors, will be presented at the American Public Health Association's meeting in Chicago on Nov. 3.
DALLAS, Nov. 3, 2015 -- For the first time, guidelines have been developed for children with pulmonary hypertension, a sometimes fatal heart and lung disease that affects nearly two of every 1,000 babies born each year. The joint American Heart Association/American Thoracic Society guidelines are published in the American Heart Association's journal Circulation.
BELLINGHAM, Washington, USA, and CARDIFF, UK -- A special section on Protein Photonics in the Journal of Biomedical Optics celebrates the accomplishments and influence of Nobel Laureate Osamu Shimomura. His work in isolating green fluorescent protein (GFP) from jellyfish paved the way for numerous applications of fluorescent proteins in imaging of living tissue and in biological microscopy.
The resurgent HIV epidemic among men who have sex with men (MSM) in the Netherlands is driven by several large, persistent, self-sustaining, and, in many cases, growing sub-epidemics shifting towards new generations of MSM, according to new research published this week in PLOS Medicine by Daniela Bezemer from HIV Monitoring Foundation, Amsterdam, the Netherlands, and Anne Cori from Imperial College London, UK, and colleagues.
Scientists have for the first time determined the ratio of males to females in a wild foraging group of green turtles in the Eastern Pacific, which suggests that sea turtles may be vulnerable to feminization from the temperature rises expected with climate change. The sex of sea turtles is determined by incubation temperatures on the nesting beaches, with warmer sand temperatures producing more females.
Diamonds may not be as rare as once believed, but this finding in a new Johns Hopkins University research report won't mean deep discounts at local jewelry stores.
A bizarre result of a routine lab experiment has led researchers at the University of Virginia School of Medicine to an unexpected new way to trigger the production of red blood cells. This could represent a significant step forward in the battle against anemia, benefitting people with diabetes, people with kidney disease or cancer, and older people for whom anemia can become a chronic problem.
Deciphering the mechanism that underlies the development of Alzheimer's disease in certain families but not in others, researchers at the Hebrew University of Jerusalem's Faculty of Medicine have proposed that the malady is actually a collection of diseases that probably should be treated with a variety of different approaches.
Endurance expert suggests drugs could help 'lazy people' exerciseIn what has been described as 'doping for lazy people' a University of Kent endurance expert has advocated the use of psychoactive drugs to encourage sedentary people to exercise.
Between 1999-2012, overall prescription drug use increased among U.S. adults, with this increase seen for the majority of but not all drug classes, according to a study in the November 3 issue of JAMA.