ScienceDaily Health Headlines
for Friday, July 9, 2010
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New way to slow the growth of malignant melanoma (July 9, 2010) -- New research has shown that the growth of melanoma, one of the most deadly forms of skin cancer, can be slowed when a little known gene called microRNA 193b is added. ... > full story
Researchers discover trigger to early, effective antibody response (July 9, 2010) -- Researchers have discovered a trigger that induces B cells to produce effective, long-lived antibodies early in the immune response. A molecule that binds toll-like receptors doubles the early antibody response, and shifts it to a more effective, IgG form. The findings support the emerging concept of "bridge immunity," which links the innate and adaptive arms of the immune response. They may also lead to the development of better vaccines. ... > full story
Teens drink more during summer before college, study finds (July 9, 2010) -- Summertime and the living is easy. But not too easy for parents whose children will head to college in the fall. An alcohol researcher says parents should be aware that this is a time when teens tend to increase their alcohol consumption. ... > full story
Heart beat may provide clues to kidney health (July 9, 2010) -- Individuals with a high resting heart rate and a low beat-to-beat heart rate variability have an increased risk of developing kidney disease, according to a new study. The findings suggest that the behavior of the autonomic nervous system may be a sentinel marker for late development of certain cases of kidney disease. ... > full story
Protein inhibitor revives chemotherapy for ovarian patients (July 9, 2010) -- Researchers have discovered a way that may help ovarian cancer patients who no longer respond to conventional chemotherapy. In a new study, they describe how the inhibition of a protein, CHEK1, may be an effective element to incorporate into therapies for women with ovarian cancer. ... > full story
New technology reduces storage needs and costs for genomic data (July 9, 2010) -- A new computer data compression technique called Genomic SQueeZ will allow genetic researchers and others to store, analyze and share massive volumes of data in less space and at lower cost. ... > full story
Scientists reprogram triple-negative breast cancer cells to respond to tamoxifen (July 8, 2010) -- Using a small molecule decoy, scientists have induced epigenetic reprogramming in human and mouse breast cancer cells, reducing the growth of triple-negative breast cancer cells by 80 percent. ... > full story
Surgery linked to Creutzfeldt-Jakob disease, according to Spanish study (July 8, 2010) -- A new study spearheaded by Spanish scientists demonstrates a causal relationship between the onset of Creutzfeldt-Jakob disease (CJD), caused by a protein called a prion, and general surgery. ... > full story
One in five preschool children in the U. S. demonstrates mental health issues when entering kindergarten (July 8, 2010) -- Social competence and behavior problems that are evident at kindergarten and first grade are known to be strong predictors of a child's academic and social functioning. However, new findings suggest that psychosocial risk factors can be identified even earlier and can be observed during the transition from preschool to formal schooling. ... > full story
Baseline PSA predicts risk of death from prostate cancer (July 8, 2010) -- Men who have a baseline PSA value of 10 or higher the first time they are tested are up to 11 times more likely to die from prostate cancer than are men with lower initial values, according to researchers. ... > full story
Fish oil may reduce risk of breast cancer (July 8, 2010) -- A recent report adds to the growing evidence that fish oil supplements may play a role in preventing chronic disease. ... > full story
Stress of an enriched environment might curb cancer growth; Effect linked to a brain-fat-hormone pathway (July 8, 2010) -- Living in an environment rich with social and physical challenges might curb cancer growth by itself, a new study shows. Researchers discovered that an enriched environment activates a nervous-system pathway used by the brain to tell fat cells to stop releasing a hormone called leptin into the bloodstream. This cancer-curbing effect occurred in models of melanoma and colon cancer. The findings suggest that some kinds of mild stress can benefit cancer survivors. ... > full story
New surgery improves outcomes for severe flat foot deformity (July 8, 2010) -- A new type of surgery can improve patient outcomes in individuals with severe adult flat foot deformity, a problem that is increasingly being seen in hospitals across the country. Patients who undergo the new surgery have better long-term outcome and mobility than those who undergo traditional surgery. ... > full story
Drug delivery system uses nanoparticles triggered by electromagnetic field (July 8, 2010) -- A new system for the controlled delivery of pharmaceutical drugs has been developed by a team of chemical engineers using nanoparticles embedded in a liposome that can be triggered by non-invasive electromagnetic fields. ... > full story
Amid the murk of 'gut flora,' vitamin D receptor emerges as a key player (July 8, 2010) -- Within the human digestive tract is a teeming mass of hundreds of types of bacteria, a potpourri of microbes numbering in the trillions that help us digest food and keep bad bacteria in check. Scientists have found that the vitamin D receptor is a key player amid the gut bacteria -- what scientists refer to as the "gut flora." ... > full story
Pinpoint precision: Delivering a biochemical payload to one cell (July 8, 2010) -- Researchers use precise electrical "tweezers" to place nanowires on predetermined spots on single cells. The technique eventually could produce new ways to deliver medication. ... > full story
Delayed school start time associated with improvements in adolescent behaviors (July 8, 2010) -- A short delay in school start time appears to be associated with significant improvements in adolescent alertness, mood and health, according to a new study. ... > full story
Biologists identify a new clue into cellular aging (July 8, 2010) -- The ability to combat some age-related diseases may rest with scientists unlocking clues about the molecular and cellular processes governing aging. The underlying theory is that if the healthy portion of an individual's life span can be extended, it may delay the onset of certain age-related diseases. In the search to understand these molecular processes, researchers have uncovered an important new DAF-16 isoform that helps to regulate longevity. ... > full story
Cholesterol's other way out (July 8, 2010) -- Many of us are simply overloaded with cholesterol, and now a report brings what might be good news: There is more than one way to get rid of that cholesterol, which can otherwise lead to atherosclerosis and heart disease. ... > full story
New computer program accurately simulates protein folding dramatically faster than previous methods (July 8, 2010) -- A new computer program accurately simulates protein folding dramatically faster than previous methods. It will allow scientists to peer deeper into the roots of diseases caused by proteins that fold incorrectly. ... > full story
Therapist competence matters -- and more for some patients than others (July 8, 2010) -- While studies have shown that cognitive therapy is an effective treatment for depression, it has still not been clear the role therapists' training and expertise plays in making treatment successful. A new study finds that depressed patients show more symptom improvement when their therapists more competently follow the guidelines for delivering cognitive therapy. ... > full story
Previously unknown natural mechanism controls cocaine use (July 8, 2010) -- Scientists have found that a particular type of genetic material plays a key role in determining vulnerability to cocaine addiction and may offer an entirely new direction for the development of anti-addiction therapies. ... > full story
Knee arthritis? Flexible options can help keep you active (July 8, 2010) -- Middle-aged men and women with osteoarthritis of the knee now have more options than ever before for treatments that may allow them to remain active in the sports they love, according to a new review. ... > full story
Predicting relationship breakups with a word-association task (July 8, 2010) -- Here's a way to tell a romantic relationship is going to fall apart: find out what people really think about their partners. The researchers in a new study used a so-called implicit task, which shows how people automatically respond to words -- in this case, whether they find it easier to link words referring to their partner to words with pleasant or unpleasant meanings. ... > full story
Genetic ancestry data improve diagnosis in asthma and lung disease (July 8, 2010) -- Americans with lung disease may face a far greater level of lung damage than either they or their doctor suspect, depending on their individual genetic heritage, according to a new study. The research implications range from diagnosing the severity of asthma, to disability decisions or eligibility for lung transplants, researchers say. ... > full story
Women with gestational diabetes: Common glucose test also accurately predicts adult-onset diabetes, study finds (July 8, 2010) -- New research shows that pregnant women who "fail" the common glucose challenge test, a series of four blood tests conducted over a single four-hour period, have a higher chance of developing adult onset diabetes later in life. ... > full story
Muted emotions misleading in Alzheimer's disease, study suggests (July 8, 2010) -- A new study suggests that when Alzheimer's patients are asked to place an emotional value on pictures, they measure the pleasant images as less pleasant and the negative scenes as less negative compared with a control group of normal elderly people. This emotional flatness could be incorrectly interpreted as a symptom of depression. ... > full story
Hospital hyperglycemia may predict future diabetes (July 8, 2010) -- Hyperglycemia during critical illness may be used as a warning of future diabetes. Researchers have found a significant association between acute illness complicated with hyperglycemia and the future development of type II diabetes or glucose intolerance. ... > full story
First transoral and transvaginal gallbladder removals performed as part of US multicenter human trial (July 8, 2010) -- The first transoral and transvaginal cholecystectomies (gallbladder removal) using Natural Orifice Translumenal Endoscopic Surgery (NOTES) have been completed in a multicenter human trial in the United States. NOTES is performed by using the patient's natural openings for surgery. These human trials are the first in the world comparing oral and transvaginal NOTES to traditional laparoscopy. ... > full story
European Society for Medical Oncology publishes updated guidelines on cancer care (July 8, 2010) -- The European Society for Medical Oncology has released an enhanced and revised set of clinical recommendations designed to help oncologists deliver the best quality care to their patients. ... > full story
Link between brain activity and Parkinson's disease symptoms: New strategy for treating movement disorders identified (July 7, 2010) -- Scientists have shown how key circuits in the brain control movement. The research not only establishes the function of these circuits, but offers promise for treating movement related disorders, such as Parkinson's disease. ... > full story
New method for identifying the causes of X-linked genetic disorders (July 7, 2010) -- Scientists have identified previously unknown potential disease genes in humans and mice. Genes on the X chromosome, which regulate embryonic development, are the focus of the current study. Men have only one X chromosome, and therefore mutations on this chromosome disproportionately affect males, frequently leading to serious diseases such as hemophilia, muscular dystrophy and mental retardation. ... > full story
Suicide attempt method affects prognosis, study finds (July 7, 2010) -- The method used for a suicide attempt is highly significant for the risk of subsequent successful suicide, reveals a long-term study. The results may be of help in acute risk assessment following a suicide attempt. ... > full story
High blood levels of vitamin E reduces risk of Alzheimer's, Swedish study finds (July 7, 2010) -- High levels of several vitamin E components in the blood are associated with a decreased risk for Alzheimer's disease in advanced age, suggesting that vitamin E may help prevent cognitive deterioration in elderly people, according to a new Swedish study. ... > full story
New target for treatment of advanced prostate cancer (July 7, 2010) -- A recent study provides demonstrates that expression of one of a group of genes found only in humans and non-human primates can promote androgen receptor activity in concert with other proteins called coregulators. ... > full story
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