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In a comparison of the angiotensin II receptor blockers (ARBs) candesartan and losartan, used by patients with heart failure, candesartan was associated with a lower risk of death at 1 and 5 years, according to a study in the January 12 issue of JAMA.

Use of a radial artery (located within the forearm, wrist and hand) graft compared with a saphenous vein (from the leg) graft for coronary artery bypass grafting did not result in improved angiographic patency (the graft being open, unobstructed) one year after the procedure, according to a study in the January 12 issue of JAMA.

New York, Jan. 11, 2011 -- While scientists believe that climate change and related extreme weather events such as drought and flooding will likely affect the earth's flora and fauna, just how much is not known. A new study by researchers Walter Jetz from Yale University and Dustin Rubenstein from Columbia University however shows an important link between the natural variation in climate conditions and complex behaviors among birds.

Adding to the national debate on the state of dental research in U.S. dental schools, an article released today titled "Total NIH Support to U.S. Dental Schools, 2005-2009", published in the International and American Associations for Dental Research's Journal of Dental Research, authors J.A. Lipton and D.F. Kinane conclude that the National Institute of Dental and Craniofacial Research (NIDCR) has played a diminishing role in funding research at U.S. dental schools between 2005 and 2009.

Employees who have to maintain a neutral disposition while they are on the clock tend to spend more energy to meet that requirement; therefore, they have less energy to devote to work tasks, according to new research from Rice University, the University of Toronto and Purdue University.

The results of a study recently published in the journal Biology Letters indicate that giant pandas need old-growth forests as much as bamboo forests. This work, which was completed through the collaborative efforts of scientists from the Chinese Academy of Science, San Diego Zoo Global, China West Normal University, China Wildlife Conservation Association and the Sichuan Forestry Department, could assist conservationists in creating strategic plans that help conserve this critically endangered bear species.

A worldwide research consortium that includes the University of Oklahoma Health Sciences Center has proven that a new drug is more effective and easier to use than current medicines in the prevention of blood clots following hip replacement surgery.

Analysis by a UCLA-led team of scientists has confirmed the discovery of the oldest complete wine production facility ever found, including grape seeds, withered grape vines, remains of pressed grapes, a rudimentary wine press, a clay vat apparently used for fermentation, wine-soaked potsherds, and even a cup and drinking bowl.

Cancer researchers at The Peggy and Charles Stephenson Oklahoma Cancer Center have found a way to stop early stage pancreatic cancer in research models – a result that has far-reaching implications in chemoprevention for high-risk patients.

(Boston) – Researchers from Boston University School of Medicine (BUSM), in collaboration with colleagues at Lahey Clinic and from Denmark and Germany, have found that 5a-reductase inhibitors (5a-RIs), while improving urinary symptoms in patients with benign prostatic hyperplasia (BPH) and possible hair loss prevention, produces significant adverse effects in some individuals including loss of libido, erectile dysfunction (ED), ejaculatory dysfunction and potential depression.

BETHESDA, Md., Jan. 11, 2011 – An international team of researchers is reporting that it has uncovered new information about human papillomavirus that one day may aid in the development of drugs to eliminate the cervical-cancer-causing infection.

Cambridge, MASS. -- Researchers at MIT and Brigham and Women's Hospital have shown that they can deliver the cancer drug cisplatin much more effectively and safely in a form that has been encapsulated in a nanoparticle targeted to prostate tumor cells and is activated once it reaches its target.

Women who have had chlamydia are at greater risk of an ectopic pregnancy because of a lasting effect of the infection.

A new study provides evidence for the first time of how chlamydia can increase the risk of an ectopic pregnancy – which occurs when an embryo implants outside the womb, in the Fallopian tube.

Researchers at the University of Edinburgh found that women who had had the sexually transmitted infection were more likely to produce a particular protein in their Fallopian tubes.