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Researchers identify molecules that can stimulate heart muscle regeneration

Damaged heart tissue is not known for having much inherent capacity for repair. But now, scientists are closing in on signals that may be able to coax the heart into producing replacement cardiac muscle cells. Using a zebrafish model system, researchers have identified a family of molecules that can stimulate stem cells to develop into beating heart muscle cells.

23 Dec 2011

Inhibition of necroptosis protects mice from lethal SIRS

Sepsis, a form of systemic inflammation, is the leading cause of death in critically ill patients. Sepsis is linked with massive cell death; however, the specific mechanisms involved in the lethality of sepsis are unclear. Now, a new study published by Cell Press in the December 23rd issue of the journal Immunity finds that inhibition of a specific cell death pathway called "necroptosis" protected mice from lethal inflammation.

23 Dec 2011

Researchers develop CAD-type tools to engineer RNA control systems

The computer assisted design (CAD) tools that made it possible to fabricate integrated circuits with millions of transistors may soon be coming to the biological sciences. Researchers at the U.S. Department of Energy (DOE)'s Joint BioEnergy Institute (JBEI) have developed CAD-type models and simulations for RNA molecules that make it possible to engineer biological components or "RNA devices" for controlling genetic expression in microbes.

23 Dec 2011

Longer looks: Manufacturing killer flu; The ironies of the individual mandate; When the elderly refuse help

In experiments conducted at the University of Wisconsin in Madison and Erasmus University in Rotterdam, the Netherlands, researchers engineered a strain of H5N1. … The next logical step would be for the researchers to publish studies in major scientific journals, describing the newly created flu, including its genetic makeup.

23 Dec 2011

First Edition: December 22, 2011

Today's early morning highlights from the major news organizations, including articles on the Capitol Hill stalemate that threatens to cut Medicare payments to doctors and government efforts to keep details of a research experiment on bird flu secret.

22 Dec 2011

Researchers map every apparent physical interaction of HIV virus with human cells

In perhaps the most comprehensive survey of the inner workings of HIV, an international team of scientists led by researchers at the University of California, San Francisco has mapped every apparent physical interaction the virus makes with components of the human cells it infects—work that may reveal new ways to design future HIV/AIDS drugs.

22 Dec 2011

Autism Speaks announces 47 new ASD research grants

Autism Speaks, the world's largest autism science and advocacy organization, today announced the awarding of 47 new research grants totaling $13,242,279 in funding over the next three years.

22 Dec 2011

CNVs appear to play a significant role in early onset bipolar disorder

An international team of scientists, led by researchers at the University of California, San Diego School of Medicine, reports that abnormal sequences of DNA known as rare copy number variants, or CNVs, appear to play a significant role in the risk for early onset bipolar disorder.

22 Dec 2011

Researchers discover how normal cells in tumors can drive cancer growth

•A new study published in the journal Nature Cell Biology has discovered how normal cells in tumors can fuel tumor growth.

22 Dec 2011

Research into how flying fox spreads infectious diseases

The flying fox is an adorable doe-eyed bat with a dark side - it is the perfect vector for emerging infectious diseases from Asia. Susan Tsang, a PhD student in ecology and evolutionary biology at The City College of New York and the CUNY Graduate Center, turned to a revolutionary way to help fund her research into how this species spreads disease.

21 Dec 2011

Scientists identify why African naked mole-rat feels no pain when exposed to acid

British researchers of the Max Delbr-ck Center for Molecular Medicine (MDC) Berlin-Buch have found out why the African naked mole-rat (Heterocephalus glaber), one of the world's most unusual mammals, feels no pain when exposed to acid.

21 Dec 2011

Study on how Antarctic worms survive current levels of ocean warming

Researchers at the University of Delaware are examining tiny worms that inhabit the frigid sea off Antarctica to learn not only how these organisms adapt to the severe cold, but how they will survive as ocean temperatures increase.

21 Dec 2011

University of Western Ontario receives FDA approval to begin SAV001 HIV trial

The first and only preventative HIV vaccine based on a genetically modified killed whole virus has received approval by the United States Food and Drug Administration (FDA) to start human clinical trials.

21 Dec 2011

More evidence emerges to support that progenitor of syphilis came from the New World

Skeletons don't lie. But sometimes they may mislead, as in the case of bones that reputedly showed evidence of syphilis in Europe and other parts of the Old World before Christopher Columbus made his historic voyage in 1492.

21 Dec 2011

University of Oxford scientists develop new candidate malaria vaccine

A new candidate malaria vaccine with the potential to neutralise all strains of the most deadly species of malaria parasite has been developed by a team led by scientists at the University of Oxford.

21 Dec 2011

Scientists discover missing link between body's biological clock and sugar metabolism system

Scientists have discovered a missing link between the body's biological clock and sugar metabolism system, a finding that may help avoid the serious side effects of drugs used for treating asthma, allergies and arthritis.

20 Dec 2011

Math model reveals that spatial tissue structure delays tumor formation

Cancer growth normally follows a lengthy period of development. Over the course of time, genetic mutations often accumulate in cells, leading first to pre-cancerous conditions and ultimately to tumour growth. Using a mathematical model, scientists at the Max Planck Institute for Dynamics and Self-Organization in G-ttingen, University of Pennsylvania and University of California San Francisco, have now shown that spatial tissue structure, such as that found in the colon, slows down the accumulation of genetic mutations, thereby delaying the onset of cancer.

20 Dec 2011

New UA cancer research centre to focus on personalised treatment options

A new cancer research centre established at the University of Adelaide will focus on treatment options tailored to the individual, taking into account DNA and genetic variations between people.

20 Dec 2011

Gene therapy may promote growth of hair cells in inner ear

Normal hearing depends on the presence of healthy hair cells in the inner ear. Gene therapy has the potential to slow the loss of hair cells and promote the growth of hair cells that have already been damaged.

20 Dec 2011

Smoking in women associated with skin cancer: Study

A new study has found a link between tobacco use and skin cancer especially in women. The study found that women who had squamous cell skin cancer were more likely to have smoked than those who were free from the disease. And those who smoked at least 20 years were twice as likely to develop squamous cell skin cancer - a less aggressive form of skin cancer as melanoma.

19 Dec 2011