Dr. Anthony Fauci reflects on 25 years of HIVOn the 25th anniversary of the first scientific article linking a retrovirus to AIDS, Anthony S. Fauci, M.D., director of the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, reflects in an essay in Nature on his experience treating and studying HIV/AIDS for the past quarter century. Outlining the peaks and valleys of the scientific communitys journey so far, Dr. Fauci writes, we must learn from........Go to the Infectious disease blog (Added on 5/15/2008 8:25:56 PM)
Doubt on Risk of Death from Higher Salt IntakeContrary to long-held assumptions, high-salt diets may not increase the risk of death, as per researchers from the Albert Einstein College of Medicine of Yeshiva University. They reached their conclusion after examining dietary intake among a nationally representative sample of adults in the U.S. The Einstein scientists actually observed a significantly increased risk of death from cardiovascular disease (CVD) linked to lower sodium diets. They........Go to the Heart-watch-blog (Added on 5/15/2008 7:40:28 PM)
Risk For Developing Breast CancerA chemical reaction in genes that control breast cancer provides a molecular clock that could one day help scientists more accurately determine a woman's risk for developing breast cancer and provide a new approach for therapy, UT Southwestern Medical Center scientists have found.
As per a research findings published in today's issue of Cancer Epidemiology Biomarkers & Prevention, researchers from UT Southwestern show that the chemical........Go to the Breast-cancer-blog (Added on 5/14/2008 9:32:58 PM)
Teens reach linguistic peak in online chatParents and teachers worry that teenagers use of these and other forms of online shorthand is harming their language skills. Perhaps they will take comfort from a study suggesting that instant messaging (IM) actually represents an expansive new linguistic renaissance.
Sali Tagliamonte and Derek Denis at the University of Toronto, Canada, say teenagers risk the disapproval of their elders if they use slang, and the scorn of their friends if........Go to the Society medical news blog (Added on 5/14/2008 8:51:05 PM)
Attitudes to stem cell researchUnlike most scientific and technological advances, which tend to take their place silently in society, biotechnology often finds itself the center of public debate and regulatory attention, due partly to the moral issues posed by a number of of its applications.
In this second BBVA Foundation international study on Attitudes to Biotechnology (the first was in 2003), the sample has been enlarged from nine to twelve European countries........Go to the Research news blog (Added on 5/14/2008 8:30:07 PM)
Adding ultrasound screening to mammographyAdding a screening ultrasound examination to routine mammography reveals more breast cancers than mammography alone, as per results of a major new clinical trial. The trial, however, also observed that adding an ultrasound exam also increases the rate of false positive findings and unnecessary biopsies.
Results of the clinical trial, conducted by the American College of Radiology Imaging Network (ACRIN) and analyzed by Brown University........Go to the Breast-cancer-blog (Added on 5/13/2008 7:46:33 PM)
Vision therapy appears to improve visual functionA low-vision treatment program that includes a home visit, counseling, assistive devices such as magnifiers and assignments to practice using them appears to significantly improve vision in veterans with diseases of the macula (the area of the retina with the sharpest vision), as per a report in the recent issue of Archives of Ophthalmology, one of the JAMA/Archives journals.
Low vision, chronic visual impairment that limits everyday........Go to the Ophthalmology news blog (Added on 5/12/2008 9:50:38 PM)
When schools ban unhealthy snacksChildren who attend schools that run fruit tuck shops are much more likely to eat more fruit if they and their friends are also banned from bringing unhealthy snacks on to the school premises, as per research published online ahead of print in the Journal of Epidemiology and Community Health.
Scientists at Cardiff University studied the snacking habits of 9-11 year olds attending 43 primary schools in deprived areas of South Wales and South........Go to the Society medical news blog (Added on 5/12/2008 9:48:16 PM)
What's the difference between a human and a fruit fly?Fruit flies are dramatically different from humans not in their number of genes, but in the number of protein interactions in their bodies, as per researchers who have developed a new way of estimating the total number of interactions between proteins in any organism.
The new research, published recently (13 May 2008) in the Proceedings of the National Academy of Sciences journal, shows that humans have approximately 10 times more protein........Go to the Research news blog (Added on 5/12/2008 9:41:20 PM)
Number Of Fat Cells Remains Constant In All Body TypesThe radioactive carbon-14 produced by above-ground nuclear testing in the 1950s and '60s has helped scientists determine that the number of fat cells in a human's body, whether lean or obese, is established during the teenage years. Changes in fat mass in adulthood can be attributed mainly to changes in fat cell volume, not an increase in the actual number of fat cells.
These results could help scientists develop new pharmaceuticals to........Go to the Weight watcher's blog (Added on 5/11/2008 10:13:41 AM)
How body size is regulated?Researchers are beginning to unravel the question why people distinctly vary in size. In cooperation with researchers of the HelmholtzZentrum München, an international genome-wide study has discovered ten new genes that influence body height and thus provides new insights into biological pathways that are important for human growth.
This meta-analysis, reported in the latest issue of Nature Genetics, is based on data from more than 26,000........Go to the Weight watcher's blog (Added on 5/11/2008 9:12:05 AM)
Is divorce bad for the parents?The elderly are cared for by their adult children regardless of their marital status. In a unique study funded by the Economic and Social Research Council, scientists found British adult children help their elderly parents as per current need (i.e. health) rather than past behaviour. This contrasts with other countries such as the US, where parents with a history of divorce see less of their children and receive less help from them.
So in........Go to the Psychology news blog (Added on 5/11/2008 9:04:36 AM)
How slow growth as a fetus can cause diabetes as an adultIntrauterine growth retardation (IUGR), which results in a baby having a low weight at birth, has been associated with the development of type 2 diabetes in adulthood. It has been suggested that this is because the expression of key genes is altered during fetal development and that this affects disease susceptibility during the later part of life. Evidence to support this hypothesis and indicating that the changes in gene expression might be........Go to the OBGYN news blog (Added on 5/8/2008 9:13:51 PM)
Drink and drugs for better sexTeenagers and young adults across Europe drink and take drugs as part of deliberate sexual strategies. Findings published recently in BioMed Centrals open access journal, BMC Public Health, reveal that a third of 16-35 year old males and a quarter of females surveyed are drinking alcohol to increase their chances of sex, while cocaine, ecstasy and cannabis are intentionally used to enhance sexual arousal or prolong sex.
The study was........Go to the Society medical news blog (Added on 5/8/2008 9:08:08 PM)
New Cancer Gene DiscoveredScientists at the OU Cancer Institute have identified a new gene that causes cancer. The ground-breaking research appears Monday in Nature's cancer journal Oncogene.
The gene and its protein, both called RBM3, are vital for cell division in normal cells. In cancers, low oxygen levels in the tumors cause the amount of this protein to go up dramatically. This causes cancer cells to divide uncontrollably, leading to increased tumor formation.
........Go to the Cancer-blog (Added on 5/8/2008 8:47:45 PM)
Caution on new anti-obesity drug in kidsAnti-obesity drugs that work by blocking brain molecules similar to those in marijuana could also interfere with neural development in young children, as per a new study from MITs Picower Institute for Learning and Memory.
Marijuana is known to be an appetite stimulant, and a new class of anti-obesity drugssuch as rimonabant (trade name Acomplia) developed by Sanofi-Aventis and awaiting approval for use in the United Stateswork by blocking........Go to the Weight watcher's blog (Added on 5/7/2008 6:44:41 PM)
Speedier Precise Cancer TherapyThe University of Alabama at Birmingham (UAB) this month became the first U.S. medical center to offer a speedier cancer radiation treatment. The new technique can turn a 20-minute radiotherapy session into a 90-second session for selected patients.
Additionally, the new treatment saves healthy human tissue from unwanted radiation exposure at rates that are the same or better than other radiotherapy techniques, as per doctors at the UAB........Go to the Cancer-blog (Added on 5/7/2008 6:40:46 PM)
Safety Of Gene Therapy Using Adult Stem CellsA new study by UC Davis scientists provides evidence that methods using human bone marrow-derived stem cells to deliver gene treatment to cure diseases of the blood, bone marrow and certain types of cancer do not cause the development of tumors or leukemia. The study was published online in the May 6, 2008 issue of Molecular Therapy.
"The results of our decade-long study of adult human stem cell transplantation shows that there is little........Go to the Research news blog (Added on 5/6/2008 9:54:20 PM)
Neurons duke it out for survivalThe developing nervous system makes far more nerve cells than are needed to ensure target organs and tissues are properly connected to the nervous system. As nerves connect to target organs, they somehow compete with each other resulting in some living and some dying. Now, using a combination of computer modeling and molecular biology, neuroresearchers at Johns Hopkins have discovered how the target tissue helps newly connected peripheral nerve........Go to the Neurology news blog (Added on 5/6/2008 9:44:08 PM)
Immune exhaustion in HIV infectionIts the virus, stupid: immune exhaustion in HIV infection
As HIV disease progresses in a person infected with the HIV virus, a group of cells in the immune system, the CD8+ T lymphocytes, become exhausted, losing a number of of their abilities to kill other cells infected by the virus. For a number of years researchers have debated whether this exhaustion of CD8+ T cells is the cause, or the consequence, of persistence of the HIV virus. As........Go to the Infectious disease blog (Added on 5/5/2008 9:19:30 PM)
Having less power impairs the mind and ability to get aheadNew research appearing in the recent issue of Psychological Science, a journal of the Association for Psychological Science, suggests that being put in a low-power role may impair a person's basic cognitive functioning and thus, their ability to get ahead.
In their article, Pamela Smith of Radboud University Nijmegen, and his colleagues Nils B. Jostmann of VU University Amsterdam, Adam Galinsky of the Kellogg School of Management at........Go to the Psychology news blog (Added on 5/15/2008 8:33:12 PM)
Visual System Equipped With "Future Seeing Powers"Catching a football. Maneuvering through a room full of people. Jumping out of the way when a golfer yells "fore." Most would agree these seemingly simple actions require us to perceive and quickly respond to a situation. Assistant Professor of Cognitive Science at Rensselaer Polytechnic Institute Mark Changizi argues they require something more - our ability to foresee the future.
It takes our brain nearly one-tenth of a second to translate........Go to the Ophthalmology news blog (Added on 5/15/2008 8:23:36 PM)
Link between vitamin D status, breast cancerUsing newly available data on worldwide cancer incidence, scientists at the Moores Cancer Center at University of California, San Diego (UCSD) and the Department of Family and Preventive Medicine have shown a clear association between deficiency in exposure to sunlight, specifically ultraviolet B (UVB), and breast cancer.
UVB exposure triggers photosynthesis of vitamin D3 in the body. This form of vitamin D also is available through diet and........Go to the Breast-cancer-blog (Added on 5/15/2008 7:23:01 PM)
Middle class relaxing with marijuanaA variety of middle-class people are making a conscious but careful choice to use marijuana to enhance their leisure activities, a University of Alberta study shows.
A qualitative study of 41 Canadians surveyed in 2005-06 by U of A scientists showed that there is no such thing as a typical marijuana user, but that people of all ages are selectively lighting up the drug as a way to enhance activities ranging from watching television and........Go to the Society medical news blog (Added on 5/14/2008 8:46:36 PM)
Mothers' Depression, Young Children's InjuriesInfants and toddlers whose mothers are severely depressed are almost three times more likely to suffer accidental injuries than other children in the same age group, as per a new study. The study's findings, published recently in the Advanced Access edition of the Journal of Pediatric Psychology, suggest that proper therapy for depression would improve not only the mothers' health, but the health of young children as well.
Previous studies........Go to the Pediatric news blog (Added on 5/14/2008 7:48:13 PM)
Alzheimer's-like brain tangles in nonhuman primatesScientists at the Yerkes National Primate Research Center, Emory University, have discovered the first conclusive evidence of Alzheimer's-like neurofibrillary brain tangles in an aged nonhuman primate. The unprecedented finding, described in the online issue of the Journal of Comparative Neurology, has the potential to move the scientific community one step closer to understanding why age-related neurodegenerative diseases, such as Alzheimer's........Go to the Neurology news blog (Added on 5/14/2008 7:33:43 PM)
High blood pressure and high cholesterolHypertension and high cholesterol levels appear to be risk factors for retinal vein occlusion, a condition that causes vision loss, as per a report in the recent issue of Archives of Ophthalmology, one of the JAMA/Archives journals.
Retinal vein occlusion occurs when one or more veins carrying blood from the eye to the heart become blocked, as per background information in the article. Bleeding (hemorrhage) or fluid buildup (edema) may........Go to the Ophthalmology news blog (Added on 5/12/2008 10:09:18 PM)
Women who breastfeed for more than a yearWomen who breast feed for longer have a smaller chance of getting rheumatoid arthritis, suggests a study published online ahead of print in the Annals of the Rheumatic Diseases.
The study also observed that taking oral contraceptives, which are suspected to protect against the disease because they contain hormones that are raised in pregnancy, did not have the same effect. Also, simply having children and not breast feeding also did not seem........Go to the Society medical news blog (Added on 5/12/2008 9:45:25 PM)
Physical activity prevent breast cancerPhysically active women are 25 per cent less likely to get breast cancer, but certain groups are more likely to see these benefits than others, finds a review of research published online ahead of print in the British Journal of Sports Medicine.
The type of activity undertaken, at what time in life and the womans body mass index (BMI) will determine how protective the activity is against the disease.
Lean women who play sport or undertake........Go to the Breast-cancer-blog (Added on 5/12/2008 9:43:18 PM)
Seeing Alzheimer's amyloidsIn an important step toward demystifying the role protein clumps play in the development of neurodegenerative disease, scientists have created a stunning three-dimensional picture of an Alzheimers peptide aggregate using electron microscopy. The study, in this weeks issue of the Proceedings of the National Academy of Sciences, reports that scientists from Brandeis University in Waltham, Mass., and the Leibniz Institut in Jena, Gera number of,........Go to the Neurology news blog (Added on 5/12/2008 9:34:02 PM)
Concerns over childhood and adolescent obesityStudy findings presented at the May 2008 Pediatric Academic Societies and Asian Society for Pediatric Research Joint Meeting indicate that childhood and adolescent obesity negatively impacts vascular endothelial function, which relates to cardiac health.
Obesity has been increasing rapidly in the U.S. during the past 20 years and obesity in adults has been associated with cardiovascular disease. The occurence rate of obesity in children is........Go to the Weight watcher's blog (Added on 5/11/2008 9:16:09 AM)
UV lotion lights the way to cleaner facilitiesA team of Canadian researchers using a lotion which glows under ultraviolet light have shown that up to a third of patient toilets are not properly cleaned. Their findings, published in BioMed Centrals journal, BMC Infectious Diseases, also show that spores from the nasty bacteria Clostridium difficile (C. difficile) linger in the loo even when it has been thoroughly wiped down.
Michelle Alfa and a team of researchers from Manitoba, Canada........Go to the Infectious disease blog (Added on 5/11/2008 9:08:30 AM)
Major shift in HIV prevention priorities neededAs per a new policy analysis led by scientists at the Harvard School of Public Health (HSPH) and the University of California, Berkeley, the most common HIV prevention strategiescondom promotion, HIV testing, therapy of other sexually transmitted infections (STIs), vaccine and microbicide research, and abstinenceare having a limited impact on the predominantly heterosexual epidemics found in Africa. Furthermore, some of the assumptions........Go to the Society medical news blog (Added on 5/8/2008 9:11:38 PM)
Do antidepressants enhance immune function?Infection with human immunodeficiency virus (HIV), which leads to acquired immunodeficiency syndrome (AIDS), is an epidemic of global concern. As per the most recent estimates, released in November 2007, by the Joint United Nations Programme on HIV/AIDS (UNAIDS) and the World Health Organization (WHO), an estimated 33.2 million worldwide are living with HIV infection currently. Eventhough the rates of infection appear to be decreasing, there........Go to the Psychology news blog (Added on 5/8/2008 8:59:54 PM)
Benign Lesions Needs 6-month Mammogram Follow UpRadiologists can, with confidence, recommend a six-month follow-up diagnostic mammogram rather than an immediate biopsy for patients with probably non-malignant breast lesions, a new study emphasizes.
The study observed that six-month short-interval follow-up examinations had an 83% sensitivity, which is similar to the sensitivity of other diagnostic mammograms, said Erin J. Aiello Bowles, MPH, lead author of the study from the Group Health........Go to the Breast-cancer-blog (Added on 5/8/2008 8:43:39 PM)
Mental Fitness and Multi-LingualismChildren who speak a second or third language may have an unexpected advantage during the later part of life, a new Tel Aviv University study has observed. Knowing and speaking a number of languages may protect the brain against the effects of aging.
Dr. Gitit Kave, a clinical neuro-psychology expert from the Herczeg Institute on Aging at Tel Aviv University, together with her colleagues Nitza Eyal, Aviva Shorek, and Jiska Cohen-Manfield,........Go to the Society medical news blog (Added on 5/7/2008 6:56:20 PM)
Hunger hormone: makes food look more attractiveA new brain-imaging study by scientists at the Montreal Neurological Institute, McGill University reveals that ghrelin - a stomach hormone, acts on specific regions of the brain to enhance our response to food related cues and eating for pleasure. This study, reported in the May 7 issue of Cell Metabolism, is critical to advance understanding and treating obesity, a condition affecting millions world-wide.
Appetite was previously thought of........Go to the Weight watcher's blog (Added on 5/6/2008 10:41:26 PM)
Protein to limit heart attack injury Medical College of Wisconsin scientists in Milwaukee have demonstrated for the first time that thrombopoietin (TPO), a naturally occurring protein being developed as a pharmaceutical to increase platelet count in cancer patients during chemotherapy, can also protect the heart against injury during a heart attack.
The study, led by John E. Baker PhD, professor of pediatric surgery in the division of cardiothoracic surgery, was reported in........Go to the Heart-watch-blog (Added on 5/6/2008 9:49:22 PM)
Ways to make tumor cells easier to destroyTumors have a unique vulnerability that can be exploited to make them more sensitive to heat and radiation, scientists at Washington University School of Medicine in St. Louis report.
The Washington University radiation oncology scientists observed that tumors have a built-in mechanism that protects them from heat (hyperthermia) damage and most likely decreases the benefit of hyperthermia and radiation as a combined treatment.
By........Go to the Cancer-blog (Added on 5/6/2008 9:41:58 PM)
Flip flops, mulch and no coatAt a time when over half of US children (aged 3-6) are in child care centers, and growing concern over childhood obesity has led physicians to focus on whether children are getting enough physical activity, a new study of outdoor physical activity at child care centers, conducted by scientists at Cincinnati Childrens Hospital Medical Center, has identified some surprising reasons why the kids may be staying inside. The study, will be presented........Go to the Pediatric news blog (Added on 5/5/2008 9:05:15 PM)