A University of Michigan study suggests that patients with undiagnosed sleep apnea may not always describe their symptoms as 'sleepy', but rather experience fatigue, tiredness, or lack of energy. Laboratory sleep tests revealed interrupted breathing patterns in 73% of the study's subjects.
Researchers find nearly 99% identity in X and Y chromosome regions, revealing a much smaller difference in mutation rates. This discovery suggests that genetic-disease-producing mutations must be explored for individual underlying causes, potentially changing the understanding of inherited diseases.
Researchers at Scripps Institution of Oceanography have produced the first direct three-dimensional image of a volcanic system using sound waves. The team used a two-mile long array of hydrophones to record sound signals reflected from a magma chamber beneath the East Pacific Rise, revealing a large and complex magma chamber system.
Researchers discovered that gatekeeper protein YidC allows essential proteins to enter bacterial membranes, while its absence leads to bacterial death. This finding suggests a new pathway for protein translocation and implies a common ancestor among bacteria, chloroplasts, and mitochondria.
Researchers discovered a new receptor site in the brain that causes mice to become obese by storing fat and expending less energy. The study sheds light on genetic determinants of obesity, metabolism, and regulation of fat mass.
Researchers at Purdue University are designing software to manufacture superior crystals, enabling better electronic hardware and alloys. Space experiments have uncovered critical information on crystal formation in the absence of gravity, which is incorporated into mathematical models.
Researchers at the University of Rochester have created a model called Complexity-Adaptive Processing (CAP) that monitors and adapts software's use of microprocessor hardware. Early tests show CAP can halve energy consumption while improving performance, paving the way for more efficient processors.
Researchers at Stanford University discovered that nitric oxide gas plays a crucial role in triggering fertilization, which could lead to new treatments for infertility. The study focused on sea urchins, but the findings also have implications for human reproduction and genetic engineering.
A new prenatal screening test has been developed to detect Down syndrome cases in the first trimester, identifying over 90% of cases. The test combines a blood test and an ultrasound exam, detecting more cases than traditional triple tests and providing earlier reassurance to pregnant women.
A study by Somnath Saha found that nearly a quarter of minority patients consider race when selecting physicians, with many preferring same-race doctors for language or personal reasons. This could impact medical student recruitment to create a diverse physician workforce.
Researchers at the University of Michigan have identified a molecular switch, Wnt signaling, that inhibits fat cell development. By activating Wnt signaling, even muscle cells can turn into fat cells.
Researchers at UNC Chapel Hill found that nutritional rickets is increasing in dark-skinned breastfed children due to lower vitamin D levels and reduced sunlight exposure. The condition can cause bowed legs, shorter stature, and even life-threatening complications if left untreated.
The International Free-Electron Laser Conference and Workshop will bring together specialists from around the world to discuss advancements in free-electron lasers. The conference, hosted by Duke University's DFELL laboratory, will showcase research on applications such as corneal wound healing, nanostructures, and neurosurgery.
Ranchers are adapting to environmental changes by incorporating conservation techniques, such as managing grazing patterns and using native species. The symposium showcases successful examples of progressive management, including the use of beavers to restore woodlands and improve biodiversity.
Insulin reduces expression of molecule promoting inflammation and clogging of arteries, increasing production of vasodilator nitric oxide. The study's findings indicate insulin may have an antiatherosclerotic role, potentially protecting people at risk of CVD.
Yale researchers determined the atomic structure of the ribosome's large subunit, revealing its RNA-based enzymatic component. This breakthrough has significant medical implications, as the ribosome is a major target for antibiotics, and could lead to new treatments for resistant bacterial diseases.
A new UCSF study found that women with advance provision of emergency contraception are three times more likely to use it than those who only received information. The study also found no increase in high-risk sex behavior among women using the morning-after pill.
A new federal report highlights the growing older population's improved well-being, with many experiencing better health and socioeconomic status. However, significant disparities persist in disability, chronic health conditions, and economic stress among certain groups, including minorities and low-income elderly.
Experts discuss policies related to aging well-being, citing key indicators of well-being report. The report highlights the growing older population's special needs, requiring initiatives based on sound data.