Hispanic Medicare Advantage enrollees on the U.S. island territory of Puerto Rico received worse care compared with Hispanics in the United States (the 50 states and Washington, D.C.), according to a new study published online by JAMA Internal Medicine.
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The largest ever study of global genetic variation in the human Y chromosome has uncovered the hidden history of men. Research published today (25 April) in Nature Genetics reveals explosions in male population numbers in five continents, occurring at times between 55 thousand and four thousand years ago.
The study, led by Dr Chris Tyler-Smith of the Wellcome Trust Sanger Institute, analysed sequence differences between the Y chromosomes of more than 1200 men from 26 populations around the world using data generated by the 1000 Genomes Project.
Evanston, IL - Today's advanced online publication of the journal Nature Biotechnology carries three important papers on crop disease resistance. They report the isolation of novel disease resistance genes and the successful transfer of resistance into wheat, soybean, and potato. The 2Blades Foundation supported the development of these efforts as part of the organization's mission to discover, advance, and deliver genetic improvements in crop disease resistance.
A study published today in the journal Nature Cell Biology shows that chronic exposure to an inflammatory "emergency" signal, interleukin-1, causes blood-forming bone marrow stem cells to produce cells needed to fight infection and repair injury, but at the expense of their own ability to self-renew and maintain a healthy blood system. This results in overproduction of aggressive immune cells capable of severely damaging tissues. Elevated interleukin-1 (IL-1) accompanies the chronic inflammation associated with human conditions including obesity, diabetes and autoimmune disorders.
Coral reefs--the world's most productive and diverse marine ecosystems--rely on a masterful recycling program to stay healthy. The corals and algae that form the base of the reef's food web release a variety of nutrients that support a complex and efficient food chain. But when this system gets out of whack, the cycle breaks down and endangers the coral reef's health. A new study led by researchers at San Diego State University and published today in the journal Nature Microbiology explores how a process known as "microbialization" destroys links in this delicate food chain.
The human intestine is home to a dense and diverse ecosystem of microbes, but little is known about how the abundant bacteria in our gut interact with each other. In a new study published in Nature this week, Brigham and Women's Hospital (BWH) investigators, in collaboration with colleagues at Boston Children's Hospital, report on a rare example of cooperation between different species of bacteria.
Research from Ann & Robert H. Lurie Children's Hospital of Chicago conducted in mice shows the drug hydrocortisone -- a steroid commonly used to treat a variety of inflammatory and allergic conditions -- can also prevent lung damage that often develops in premature babies treated with oxygen.
New research from North Carolina State University and Pennsylvania State University finds that black female college students were often unlikely to use online resources related to HIV prevention, due to the stigma associated with the disease and concerns that their social network would learn they were accessing HIV-related materials.
This review summarizes the literature on scleratrophic skin lesions as a manifestation of a Borrelia infection. An association of morphea with Lyme borreliosis LB was mainly reported from Middle-European Countries, Japan and South America. B. afzelii has been identified predominantly from the chronic skin lesions of acrodermatitis chronica atrophicans (ACA) and has been cultivated from morphea lesions in isolated cases. Scleratrophic skin lesions like morphea, lichen sclerosus etatrophicus (LSA) and anetoderma have been observed in coexistence with ACA.
Artificial molecules are like sheets of paper. Chemists can fold them into specific shapes. Transferring the shape of one molecule to another, however, poses a significant challenge.
An international research team describes the methods of winding up molecules into screw-shaped structures in the journal Angewandte Chemie. With the aid of artificial molecules, the researchers imitated the principles underlying the assigning a specific function to biomolecules in nature.
Structure determines function of molecules
AMHERST, Mass. - A group of seven independent researchers from universities and research institutions from Europe and the United States, including Thomas Zoeller, professor of biology at the University of Massachusetts Amherst, believe they have paved the way to end a nearly three-year-long stalemate over legal requirements by the European Commission to provide criteria identifying endocrine disrupting chemicals (EDCs) and put to rest claims of a lack of consensus on the issue among scientists.
AUGUSTA, Ga. - Low levels of vitamin D in black teens correlates with low activity of a major mechanism for controlling gene expression that may increase their risk of cancer and other disease, researchers report.
Leesburg, VA, April 25, 2016-- Oral presentations delivered by some of the world's most renowned researchers and radiologists were among the highlights of the ARRS 2016 Annual Meeting recently in Los Angeles. The presentations covered 13 radiology subspecialities and were designed to provide innovative, educational information for conference attendees.
All presentations submitted were subjected to a highly-competitive review process to determine the most informative and best suited for the ARRS Annual Meeting. Among the top presentations were:
The European Commission is legally required to provide criteria identifying Endocrine Disrupting Chemicals (EDCs), a process that has been blocked for almost three years, allegedly because of a lack of scientific consensus and because an impact assessment study was deemed necessary. Now, a group of 7 independent researchers from universities and research institutions from Europe and the United States* show how little controversy there is around the definition of EDCs, and that the simple logic used for the identification and regulation of carcinogens can be used for EDCs.
One of the largest and most important groups of dung beetles in the world evolved from a single common ancestor and relationships among the various lineages are now known, according to new research by an entomologist from Western Kentucky University.