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Perinatal IVF Mortality Down With Single Embryo Transfer
Date: Jul-08-2012The risk of perinatal mortality has decreased in infants born by the methods of in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) with the help of a policy of single embryo transfer (SET). This finding came from an analysis of the Australian and New Zealand Assisted Reproduction Technology Database with over 50,000 births recorded between 2004 and 2008, where IVF and ICSI babies have experienced a decrease in overall perinatal mortality with this SET policy...
How A Protein Meal Lets Your Brain Know You're Full
Date: Jul-08-2012Feeling full involves more than just the uncomfortable sensation that your waistband is getting tight. Investigators reporting online in the Cell Press journal Cell have now mapped out the signals that travel between your gut and your brain to generate the feeling of satiety after eating a protein-rich meal. Understanding this back and forth loop between the brain and gut may pave the way for future approaches in the treatment and/or prevention of obesity...
Clot-Busting Drugs Delivered Directly To Obstructed Blood Vessels By Novel Nanotherapeutic
Date: Jul-08-2012Researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University have developed a novel biomimetic strategy that delivers life-saving nanotherapeutics directly to obstructed blood vessels, dissolving blood clots before they cause serious damage or even death. This new approach enables thrombus dissolution while using only a fraction of the drug dose normally required, thereby minimizing bleeding side effects that currently limit widespread use of clot-busting drugs...
Type 1 Diabetes Reversed By Antibodies In Mouse Model
Date: Jul-08-2012Scientists at the University of North Carolina School of Medicine have used injections of antibodies to rapidly reverse the onset of Type I diabetes in mice genetically bred to develop the disease. Moreover, just two injections maintained disease remission indefinitely without harming the immune system. The findings, published online ahead of print in the journal Diabetes, suggest for the first time that using a short course of immunotherapy may someday be of value for reversing the onset of Type I diabetes in recently diagnosed people...
A Single Cancer Cell Can Produce Up To 5 Daughter Cells
Date: Jul-08-2012It's well known in conventional biology that during the process of mammalian cell division, or mitosis, a mother cell divides equally into two daughter cells. But when it comes to cancer, say UCLA researchers, mother cells may be far more prolific. Bioengineers at the UCLA Henry Samueli School of Engineering and Applied Science developed a platform to mechanically confine cells, simulating the in vivo three-dimensional environments in which they divide, and found that, upon confinement, cancer cells often split into three or more daughter cells...
China Has Child Diabetes Levels Higher Than The US
Date: Jul-08-2012A study led by researchers at the University of North Carolina at Chapel Hill found Chinese teenagers have a rate of diabetes nearly four times greater than their counterparts in the United States. The rise in the incidence of diabetes parallels increases in cardiovascular risk, researchers say, and is the result of a Chinese population that is growing increasingly overweight. The study led by Barry Popkin, Ph.D., W.R. Kenan Jr...
The Key (Proteins) To Self-Renewing Skin
Date: Jul-08-2012In Cell Stem Cell, researchers at the University of California, San Diego School of Medicine describe how human epidermal progenitor cells and stem cells control transcription factors to avoid premature differentiation, preserving their ability to produce new skin cells throughout life. The findings provide new insights into the role and importance of exosomes and their targeted gene transcripts, and may help point the way to new drugs or therapies for not just skin diseases, but other disorders in which stem and progenitor cell populations are affected...
Vitamin D Supplementation Effective In Fracture Risk Reduction In Older Adults
Date: Jul-08-2012Based on the results of a pooled analysis of 11 unrelated randomized clinical trials investigating vitamin D supplementation and fracture risk in more than 31,000 older adults, Bess Dawson-Hughes, MD, director of the Bone Metabolism Laboratory at the Jean Mayer USDA Human Nutrition Research Center on Aging (USDA HNRCA) at Tufts University, says higher doses of Vitamin D may be the most beneficial in reducing bone fractures in this age group...
Gene Linked To Face/Skull Malformation And Cognitive Impairment
Date: Jul-08-2012A gene whose mutation results in malformed faces and skulls as well as mental retardation has been found by scientists. They looked at patients with Potocki-Shaffer syndrome, a rare disorder that can result in significant abnormalities such as a small head and chin and intellectual disability, and found the gene PHF21A was mutated, said Dr. Hyung-Goo Kim, molecular geneticist at the Medical College of Georgia at Georgia Health Sciences University...
Maligant Transformation In Chronic Leukemia May Be Powered By MiR Loss
Date: Jul-08-2012Loss of a particular microRNA in chronic lymphocytic leukemia shuts down normal cell metabolism and turns up alternative mechanisms that enable cancer cells to produce the energy and build the molecules they need to proliferate and invade neighboring tissue. The findings come from a new study led by researchers at the Ohio State University Comprehensive Cancer Center - Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC - James)...
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