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Medical News Update from News-Medical.Net - 29th July 2007

Researchers track how a single molecule of RNA or DNA unwinds
//Medical Research News
The process by which genes are duplicated is mysterious and complex, involving a cast of characters with diverse talents and the ability to play well with others in extremely close quarters.
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Fish oil better than vegetable oil for your health
//Medical Research News
Scientists have provided new evidence that using more fish oil than vegetable oil in the diet decreases the formation of chemicals called prostanoids, which, when produced in excess, increase inflammation in various tissues and organs.
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New target for drugs to fight the HIV/AIDS virus
//Medical Research News
Researchers from Rome, Italy, describe a finding in the August 2007 print issue of The FASEB Journal that could lead to new drugs to fight the HIV/AIDS virus, as well as new vaccines to prevent infection.
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Effects of aging hematopoietic stem cells
//Medical Research News
There is little disagreement that the body's maintenance and repair systems deteriorate with age, even as there is plenty of disagreement as to why.
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Call for EU to launch major project to map out all our proteins
//Medical Research News
Biologists still have no clear idea how many active genes there are coding for proteins in humans and other organisms, even though for some species the genomes have been completely sequenced.
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New view on role of protein synthesis in memory formation
//Medical Research News
New research from the University of Illinois challenges the premise that the brain must build new proteins in response to an experience for that experience to be recorded in long-term memory.
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Jury out on high fructose corn syrup and obesity
//Medical Research News
High fructose corn syrup (HFCS) has been singled out as having special properties that make Americans fatter than sugar and other energy sources with identical calorie contents.
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New findings on gene-transcription machinery
//Medical Research News
For some time, scientists have been tracking down the sequence of biochemical steps required to attract and assemble at the head end of a gene the molecular machinery needed to transcribe that gene to put to work the information it encodes.
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Discovery of key HIV protein which makes cell membranes bend more easily
//Medical Research News
Carnegie Mellon University scientists have made an important discovery that aids the understanding of why HIV enters immune cells with ease.
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Gene expression pattern could lead to improved treatment of pediatric septic shock
//Medical Research News
A consortium of researchers headed by Cincinnati Children's Hospital Medical Center has discovered a gene expression pattern that could lead to improved diagnosis and treatment of pediatric septic shock , still a serious public health problem despite today's potent antibiotics and pediatric intensive care units.
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FDA statement on gene therapy trial
//Medical Studies/Trials
On July 24, 2007 the U.S. Food and Drug Administration (FDA) was informed by Targeted Genetics Corporation of Seattle about the death of a patient who received an investigational gene therapy product in a clinical trial for the treatment of active inflammatory arthritis.
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Steroid medications don't work in treating lower respiratory infections in children
//Medical Studies/Trials
The use of steroid medication to treat bronchiolitis, a common viral lower respiratory infection in infants , does not prevent hospitalization or improve their respiratory symptoms, according to a study published in the July 26 issue of The New England Journal of Medicine.
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Thiazolinediones increase risk of heart failure
//Medical Studies/Trials
A class of drugs commonly used to treat type 2 diabetes may double the risk of heart failure, according to a new analysis by researchers at Wake Forest University School of Medicine and colleagues.
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Malt liquor linked to marijuana use
//Medical Studies/Trials
The cheap, high-alcohol beverage often marketed to teens -- may put young adults at increased risk for alcohol problems and use of illicit drugs, particularly marijuana, according to a new study of malt liquor drinkers and marijuana use by scientists at the University at Buffalo's Research Institute on Addictions (RIA).
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Severe trauma affects kids' brain function
//Medical Studies/Trials
The first study to examine brain activity patterns in severely traumatized children showed their brains function differently than those of healthy children, say researchers at the Stanford University School of Medicine and Lucile Packard Children's Hospital.
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Sexual problems of long-term cancer survivors merit more attention
//Medical Studies/Trials
The first study to look at sexual function in very long-term female survivors of genital-tract cancer found that these women were pleased with the quality of their cancer care but less satisfied with the emotional support and information they received about dealing with the effects of the disease and treatment on sexuality.
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Treating bronchiolitis with steroids doesn't work
//Medical Studies/Trials
For infants with a common and potentially serious viral lower respiratory infection called bronchiolitis, a widely used steroid treatment is not effective.
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Gene found that regulates blood-forming fetal stem cells
//Medical Studies/Trials
In the rancorous public debate over federal research funding, stem cells are generally assigned to one of two categories: embryonic or adult.
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Blood transfusions not likely to spread cancer
//Medical Studies/Trials
Individuals who receive blood transfusions from donors with undiagnosed cancers are at no higher risk of developing malignant disease than people who receive blood from donors without cancer, according to the results of a retrospective study published in The Lancet last month.
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White blood cell booster may help cancer patients avoid deadly complications
//Medical Studies/Trials
Cancer patients who receive a drug that stimulates the growth of infection-fighting white blood cells may be significantly less likely to die from a chemotherapy-related complication characterized by fever and low white blood cell levels, according to a multi-institutional study led by researchers from the University of Rochester School of Medicine and Dentistry and the Duke University Comprehensive Cancer Center.
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Link between breast cancer and hormone therapy confirmed
//Women's Health News
A sharp drop in breast cancer rates from 2003 to 2004 is linked to an even larger drop in women's use of hormone therapy that began around 2000, according to a Kaiser Permanente study in the August 1, 2007, issue of the Journal of the National Cancer Institute that confirms the connection between breast cancer, hormone therapy and mammography screening over the past 25 years.
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Breast cancer and HRT
//Women's Health News
The medical community has been debating for many years whether, and to what extent, postmenopausal hormone therapy (HT) use is associated with a higher risk of breast cancer, says Professor Amos Pines, President of the International Menopause Society.
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Home based support for disadvantaged adult mothers
//Women's Health News
The idea makes sense: Partner indigent mothers with a mentor who offers parenting and health advice and helps find resources in the community.
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Women more prone to brain damage from alcohol abuse than men
//Women's Health News
Alcoholism has traditionally been considered a male disease because there are many more alcoholic males than females.
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Group therapy does not prolong the lives of women with metastatic breast cancer
//Women's Health News
Earlier results from the same researcher had suggested a survival benefit of group therapy for women with metastatic breast cancer. However, the new study did find that women with estrogen receptor (ER) negative tumors did show survival benefit, and that group therapy improved quality of life (QOL).
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Regular mammograms after breast cancer lower rate of death from breast cancer
//Women's Health News
Older women who get yearly mammograms after treatment of early-stage breast cancer are less likely to die from breast cancer, according to a study in the July 20, 2007 issue of the Journal of Clinical Oncology.
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Pregnancy acceptance important in formation of mother/child bond
//Women's Health News
The relationship between a mother and her infant is believed by many to be the foundation of healthy childhood development, but researchers at the University of Missouri-Columbia have found pregnancy acceptance to be the first step in forming the mother/child bond.
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More research needed on uterine fibroid treatment options
//Women's Health News
A systematic review of the research concerning treatment options for uterine fibroids, which affect most American women over 50, reveals surprisingly little evidence to help compare standard treatment recommendations, according to a report by researchers at the RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, which is sponsored by the Agency for Healthcare Research and Quality.
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