Minggu, 06 Maret 2011

ScienceDaily Health Headlines

for Sunday, March 6, 2011

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Jekyll and Hyde: Cells' executioner can also stave off death (March 5, 2011) -- An enzyme viewed as an executioner, because it can push cells to commit suicide, may actually short circuit a second form of cell death, researchers have discovered. The finding could shift drug discovery efforts, by leading scientists to rethink how proposed anti-cancer and anti-inflammatory drugs that target the enzyme, called caspase 8, are supposed to work. ... > full story

Decline in cerebral palsy diagnoses in premature infants suggests improvements in perinatal care (March 5, 2011) -- Cerebral palsy is a neurodevelopmental condition that affects motor function, more often in children born prematurely. Because cerebral palsy is a result of brain injury received shortly before, during, or soon after birth, the number of infants being diagnosed with the condition is a good indicator of the quality of perinatal and neonatal care. Rates of cerebral palsy have declined dramatically in the past 15 years. ... > full story

Mean girls and queen bees: Females threatened by social exclusion will reject others first (March 5, 2011) -- Many studies have suggested that males tend to be more physically and verbally aggressive than females. According to a new study, it may not be the case that women are less competitive than men -- they may just be using a different strategy to come out ahead. Specifically, women may rely more on indirect forms of aggression, such as social exclusion. ... > full story

Mutations found in human induced pluripotent stem cells (March 5, 2011) -- Ordinary human cells reprogrammed as induced pluripotent stem cells may revolutionize personalized medicine by creating new and diverse therapies unique to individual patients. But important and unanswered questions have persisted about the safety of these cells, in particular whether their genetic material is altered during the reprogramming process. A new study finds that the genetic material of reprogrammed cells may in fact be compromised, and suggests that extensive genetic screening of hiPSCs become standard practice. ... > full story

Prostate cancer: Targeted therapy shrank tumors up to 74 percent in cells in mice (March 5, 2011) -- Researchers have identified a potential target to treat an aggressive type of prostate cancer. The target, a gene called SPINK1, could be to prostate cancer what HER2 has become for breast cancer. ... > full story

To bring effective therapies to patients quicker, use the team approach (March 5, 2011) -- The current clinical trial process in the US is on shaky ground. In this era of personalized medicine, patient populations for new therapies grow smaller and smaller. Coupled with skyrocketing costs and expanding regulatory requirements, the completion of trials is extremely difficult. Researchers propose a new model to ensure effective treatments become available more quickly and at a lower cost -- collaborative clinical trials, in which companies team up and share costs to test new therapies. ... > full story

Certain parts of the brain activated in people who heard tailored health messages and quit smoking (March 5, 2011) -- People who demonstrated a stronger brain response to certain brain regions when receiving individually tailored smoking cessation messages were more likely to quit smoking four months after, a new study found. ... > full story

New non-surgical autopsy technique set to revolutionize post-mortem practice (March 4, 2011) -- A new non-surgical post-mortem technique that has the potential to revolutionize the way autopsies are conducted around the world has been pioneered by forensic pathologists and radiologists. ... > full story

Possible new treatment strategies for pancreatic cancer (March 4, 2011) -- Researchers have identified a protein that can be modified to improve the effectiveness of one of the most common drugs used to treat pancreatic cancer. ... > full story

Feet first? Old mitochondria might be responsible for neuropathy in the extremities (March 4, 2011) -- The burning, tingling pain of neuropathy may affect feet and hands before other body parts because the powerhouses of nerve cells that supply the extremities age and become dysfunctional as they complete the long journey to these areas, scientists suggest in a new study. The finding may eventually lead to new ways to fight neuropathy, a condition that often accompanies other diseases including HIV/AIDS, diabetes and circulatory disorders. ... > full story

Can you predict your mate will cheat by their voice? (March 4, 2011) -- When choosing a partner, women believe the lower the man's voice, the more likely he's going to cheat. Conversely, men think a woman with a higher voice is more likely to be unfaithful, researchers have found. The study is the first to examine the link between voice pitch and perceived infidelity and offers insight into the evolution of the human voice and how we choose our mates. ... > full story

How long do stem cells live? (March 4, 2011) -- A unique computer model calculates how long a blood stem cell will live, information that could predict the outcome of bone marrow transplants. ... > full story

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