Energy balance, not exercise, key to athletic menstrual disturbance
...hs, they trained the monkeys to run on treadmills, slowly increasing their daily training schedule to about six miles per day. Throughout the training period the amount of food provided remained the standard amount for a normal 4.5 to 7.5 pound monkey, although the researchers note that some monkeys did no...Adult stem cells from knee fat turned into cartilage, bone, fat cells
...searchers do know that it is metabolized much more slowly than subcutaneous fat. "This is another demonstration that adult stem cells are not necessarily locked into their current fate, and furthermore, we can reprogram them into becoming other cell types," Guilak said. "It is unlikely that one source of st...Landmark study uncovers reasons behind recurring back injury
... do, only intensifies the harm. "Moving slowly just increases the length of time the spine has to endure those extra forces," Marras said. Marras directs Ohio State's Biodynamics Laboratory, where he and his colleagu...Tissue engineering could become new coronary bypass
...the first few days after implantation, and then to slowly release measured doses of PDGF by using microcapsules that dissolve over time. The polymer itself will also melt away over time. "The polymer might be used as a heart patch," Mooney said. "You'd lay a sheet of it on the muscle and it could encoura...Illinois researcher receives award for developing a better sunscreen
... sun. Bonda found that avobenzone breaks down more slowly when the chemical DEHN is added. In one experiment using two avobenzone-based sunscreens — one with DEHN and one without — the DEHN sunscreen maintained most of its effectiveness after five hours while the other lost almost all of its UV...Study finds troubling trends in hepatitis C screening, diagnosis and referral
...des before symptoms begin, even while the liver is slowly destroyed. In the current study, the percentage of patients whose biopsy showed significant liver scarring was high - at least 10 percent of all those who tested positive for the virus. As many as 3.9 million people in the United States may have the...Expert advises annual lung test for smokers during physical exam
...d to describe chronic bronchitis and emphysema. A slowly progressive lung disease characterized by a gradual loss of lung function, the illness is caused primarily by smoking in the U.S. and throughout most of the developed world. Victims have an abnormal inflammatory response in the lung in response to n......of kidney disease rose significantly more slowly in those taking irbesartan over placebo. Throughout the study, proteinuria (excessive amounts of protein in the urine, another sign of advanced kidney disease) was significantly reduced in the irbesartan group but not in the amlodipine or placebo...New materials could mean longer lasting artificial hips
...teriorating hips. But even artificial hip implants slowly deteriorate and eventually can break down due to wear, often because of inadequate lubrication. Nicholas Spencer, of the Swiss Federal Institute of Technology in Zurich, reported on progress in developing longer-lasting artificial hip joints...No evidence that large numbers of physicians are leaving California, say UCSF researchers
...etween ages 45 and 54. The physician workforce is slowly but steadily approaching parity between the numbers of female and male physicians. California is on par with national estimates that women will constitute more than a third of active physicians in the U.S. in 2020. Women physicians are more likely t...UNC study ties depression, anxiety to fatigue in HIV-positive patients
... immune system defensive cells that the AIDS virus slowly destroy. The UNC team studied 40 otherwise healthy HIV-positive patients in depth, collecting numerous test results at the UNC General Clinical Research Center. Besides recording physiological and nutritional data, scientists had patients complete ...Bad habits, non-cholesterol risk factors in youth linked to fatty plaques
... a fatty core that gradually blocks the artery and slowly cuts off blood supply to the heart, or provokes a blood clot that rapidly blocks the artery and triggers a heart attack. Those in the study who smoked had more extensive fatty streaks and three times the extent of plaques in the abdominal aorta,...'Stomach pacemaker' in use at Temple
...order in which food moves through the stomach more slowly than normal. This can result in severe, chronic nausea and vomiting that cannot always be controlled by medications. These patients have difficulty eating and, in severe cases, may require some form of tube feeding to ensure adequate nutrition. Th...Researchers identify new genetic risk factor for HIV infection
... exposure to the virus and those who progress very slowly to AIDS after infection. Understanding what makes these individuals different could lead to new vaccines and treatments, and a study published this week in the early online edition of the journal AIDS brings scientists closer to that goal. It shows...Duke eye researchers describe cascade of events that may lead to retinal degeneration
... Wong explained. Since the disease progresses so slowly in humans, researchers use animal models in which the progression is much quicker. In his series of experiments, Wong made use of a special line of transgenic pigs he and Robert Petters at North Carolina State University created. The team also used...Drugs made from polymers, the stuff of plastics
...er versions of antibiotics that release medication slowly over time and surgical sutures that deliver anti-inflammatory drugs even as they dissolve....Scientists develop polymers with nitric-oxide releasing particles
...late functional groups, which release nitric oxide slowly over long periods of time when exposed to water," Zhang explained. "Our initial studies used nitric oxide release chemistry which contaminated the blood with diamine precursors," Zhang added. To avoid this problem, he has developed and is now test...Self-assembled nano-capsules resemble bacterial cell walls
...uding the packaging of certain drugs that would be slowly released to the body. The nano-capsules also could be used as miniature templates in novel, inorganic nanofabrication techniques. While the structures have no real analog in nature, this type of spontaneous organization is reminiscent of multi-layer...Synthetic rubber kills germs on contact
...mers mixed with special disinfectants. The plastic slowly releases the disinfectant over time, killing pathogens that come in contact with its surface. When the disinfectant runs out, the plastic permanently looses its disease-fighting ability. Worley's technology introduces a chemical structure cal......th drugs and injected into the body where it would slowly release the needed drug before biodegrading into t...could include the most drug and have it release as slowly as possible," said Cypes. "We have demonstrated that the transport of small molecules can be control...