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Tag: "medical" at biology news

Misclassified for centuries, medicinal leeches found to be 3 distinct species

...istration (FDA) in 2004, for use as a prescription medical device that helps restore blood flow following cos..., medicinal leeches have been used in a variety of medical treatments--some legitimate, many not. Demand for leeches in 19th-century Europe grew so intense tha...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...edge about stem cell biology that will help inform medical scientists in their quest for understanding diseases such as Parkinson's, Alzheimer's, ALS, and a host of other neurological diseases. "Dr. Snyder's team has extended the promise of stem cell therapies to children with special-needs, ...

Africa's first large-scale HIV vaccine study launches

...exual relations with women. As a result, access to medical circumcision also will be provided to male participants who choose to undergo the procedure. ...

Chemo combination improves survival in asbestos-related cancer

...tion, an international organization that evaluates medical research. Systematic reviews draw evidence-based conclusions about medical practice after considering both the content and quality of existing medical trials on a topic. Th...

Liver regeneration may be simpler than previously thought

...lasia. The new results may also have important medical implications. Transcription factors are known to be more difficult to manipulate than the other identified proteins. Since the transcription factors were not present in regenerating livers, it might be easier to stimulate liver regeneration by only a...

Scientists discover new, readily available source of stem cells

...y." An advantage of the AFS cells for potential medical applications is their ready availability. The report describes how the cells were harvested from backup amniotic fluid specimens obtained for amniocentesis, a procedure that examines cells in this fluid for prenatal diagnosis of certain genetic disor...

Rapid, Low-Cost DNA Testing

...in them, and identify harmful genetic sequences in medical research, to name only a few applications. Rothberg's innovative procedure quickly and inexpensively identifies genetic sequences in any sample of DNA. he technology is a novel fluorescent DNA screening assay, which rapidly determines whether specif...

Why aren't humans furry? Stone-Age moms could be the answer

...ed the winner of the 2006 David Horrobin Prize for medical theory. Written by Judith Rich-Harris, author of The Nurture Assumption and No Two Alike, the article, "Parental selection: a third selection process in the evolution of human hairlessness and skin color" was judged to best embody the spirit of the j...

Tumor-suppressor gene is critical for placenta development

...nt professor of molecular virology, immunology and medical genetics and a researcher with Ohio State's Comprehensive Cancer Center and human cancer genetics program. "People born with one mutated Rb gene have a higher risk of developing retinoblastoma. But are they also predisposed to miscarriage? Do Rb-r...

UW launches study testing adult stem cells for heart damage repair

...l of Medicine and Public Health is among the first medical centers in the country taking part in a novel clin... of oxygen-rich blood to the heart despite optimum medical intervention. This type of therapy - regenerative medicine - treats diseases by using growth fact...

Elucidation of the genome for diabetics with DNA chips

..., rapid analytical techniques hampered progress in medical research for many years. The recent sequencing of the human genome and the establishment of a complete map of DNA variations in the human species have finally made it possible to explore genetic predisposition to DT2 in its entirety. In 2006, a revol...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...to p53 or not specific to p53. "Despite great medical progress, the survival rate in head and neck cancer still remains very poor, at about 50 percent, and there is a definite need for new treatment modalities like vaccination," Whiteside said. "Targeting of p53, however, is a strategy that could also w...

Does God answer prayer? ASU research says 'yes'

...another person ?among people with psychological or medical problems. He found a positive effect. “There ... and that praying for people with psychological or medical problems may help them recover.? The use of prayer as a therapeutic intervention is controversial....

Researchers develop technique for bacteria crowd control

...omedical engineering including use in miniaturized medical diagnostic kits and bioanalysis. The technique is based on the transmission of tiny electric current in a very thin film sample cell containing a colony of bacteria. The current produces electrolysis that changes the local pH level in the vicinity o...

Study identifies risk factors for spread of respiratory infections in hospitals

...xygen therapy and positive pressure ventilation in medical facilities and effective ways of ventilating hospitals and clinics to avoid spreading of droplets," said Dr. Sung. "These findings are relevant not only for SARS," he concluded, "but also for other infections transmitted by droplets such as influe...

Illuminating the dark side of plants

... toxic part of each plant, and provides the latest medical information along with scientific references. An ...1985) include two physicians in active practice in medical toxicology and emergency medicine: Lewis S. Nelson, M.D., New York University School of Medicine, an...

New antibacterials being developed to tackle MRSA superbug

... can infect wounds, including those resulting from medical procedures conducted in hospitals. It may then spread further into the body and cause serious infections such as blood poisoning. Methicillin-resistant Staphylococcus aureus, or MRSA, is a form of the bacterium that is resistant to the drug methicill...

Twin studies reveal genetic components leading to cardiac and kidney disease

...erson cares for his or her health, factors such as medical care or diet and exercise. In a series of studies published in the American Heart Association journals Circulation and Hypertension, O’Connor has identified particular genes that influence human health in unexpected ways. "Factors linked to cardi...

New research shows that flu is a trigger of heart attacks

...due to their high cost or lack of access to proper medical care. In contrast, the flu vaccine is inexpensive, easy to administer and could save thousands of lives every year." Prof Madjid ?who directs a research lab dedicated to the effect of flu on the cardiovascular system ?pointed out that the implicat...

Trojan horse strategy defeats drug-resistant bacteria

...nic infections like those that occur in wounds, on medical devices and in the lungs of people with cystic fibrosis. For these reasons, a great deal of research is focused on finding new antibiotic compounds. In this study, researchers took a different approach. Rather than trying to find agents that best...

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