Researchers from Rice University and Baylor College of Medicine (BCM) have broken one of the major roadblocks on the path to growing transplantable tissue in the lab: They've found a way to grow the blood vessels and capillaries needed to keep tissues alive.
The new research is available online and due to appear in the January issue of the journal Acta Biomaterialia.
It is becoming well accepted that, as well as too little exercise, too much sitting is bad for people's health. Now a new study has found that it is not just the length of time people spend sitting down that can make a difference, but also the number of breaks that they take while sitting at their desk or on their sofa. Plenty of breaks, even if they are as little as one minute, seem to be good for people's hearts and their waistlines.
Previously, researchers thought the detection of P. acnes at the site of these infections was due to contamination from the skin. For example, an infection at a site within the body after surgery, could have been caused by bacteria transferred to an open wound from the skin during an operation. But recent research has contradicted this, suggesting P. acnes already within the body, may be the cause. Although it is often disregarded as a harmless bystander when found in blood and tissue swabs taken from patients, we should not rule out this bug in the diagnosis of disease.
The blood test could mean that 98% of invasive procedures could be avoided, say the authors. The test uses the latest DNA technology to analyse genetic components in the mother's blood that indicate whether the foetus has Down's.
Down's syndrome or trisomy 21 occurs in around 1 in 800 births and older women are at higher risk.
Tom Jefferson and colleagues from the Cochrane Group argue that the current system for assessing the safety and effectiveness of drugs, based on published trial data only, is "wholly inadequate" and "ethically dubious."
They propose a new approach that would allow in-depth scrutiny of the complete set of trial data for a new drug.
Their call comes after they reviewed the evidence for the antiviral drug oseltamivir (Tamiflu), and were unable to find sufficient published data to support the conclusion that oseltamivir reduces complications in healthy adults.
Joy Lawn from Saving Newborn Lives/Save the Children, South Africa, and an international group of colleagues used a systematic process developed by the Child Health Nutrition Research Initiative (CHNRI) to define and rank research options to reduce mortality from intrapartum-related neonatal deaths (birth asphyxia) by the year 2015.
ITHACA, N.Y. — Scientists have identified the genes related to leaf angle in corn (maize) – a key trait for planting crops closer together, which has led to an eight-fold increase in yield since the early 1900s. (Nature Genetics, Jan. 9, 2011.)
PASADENA, Calif. (January 11, 2011) – Receiving the herpes zoster vaccine was associated with a 55 percent reduced risk of developing shingles, according to a Kaiser Permanente study of 300,000 people that appears in the current issue of the Journal of the American Medical Association.
For men with incontinence for at least one year following radical prostatectomy, participation in a behavioral training program that included pelvic floor muscle training, bladder control strategies and fluid management, resulted in a significant reduction in the number of incontinence episodes, according to a study in the January 12 issue of JAMA. The researchers also found that the addition of biofeedback and pelvic floor electrical stimulation provided no additional benefit.
Vaccination for herpes zoster, a painful rash commonly known as shingles, among a large group of older adults was associated with a reduced risk of this condition, regardless of age, race or the presence of chronic diseases, according to a study in the January 12 issue of JAMA.
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.