Tag: "hypothesis" at medical news

Protection from sudden cardiac death in women may be linked with a diet rich in alpha-linolenic acid

...prevent sudden cardiac death, it would support the hypothesis that these oils were preventing fatal arrhythmias. During the 16 years of follow-up, women who had higher ALA intake had a significantly lower risk of dying from sudden cardiac death or coronary heart disease." The study included 76,763 women partic...

Study of Big Ten football injuries shows NCAA rule change did not reduce injury rates

...mes the fall rate, according to the findings. "Our hypothesis was that the rule changes would not reduce the injury rate back down to the level seen in the fall," said John Albright, M.D., University of Iowa professor in the Sports Medicine Center in the Department of Orthopaedics and Rehabilitation in the UI R...

DHEA may help decrease abdominal fat in elderly persons

...Medicine, St. Louis, conducted a study to test the hypothesis that DHEA replacement therapy results in a decrease in abdominal fat and an improvement in insulin action in elderly persons. The randomized, double-blind, placebo-controlled trial included 56 elderly persons (28 women and 28 men, average age, 71 ...

Millions who suffer from nut and milk allergies could benefit from Stanford researcher's test

... Umetsu's vaccines were designed with the hygiene hypothesis in mind. The vaccines' essential ingredient is a dead bacterium - heat-killed Listeria monocytogenes or HKL - mixed with peanuts, milk or wheat. Umetsu began working with Listeria, a common food-borne bacterium that causes gastrointestinal i...

Cocaine addicts show reduced brain structure that underlies judgment

... from drug use. However, they said "An alternative hypothesis is that the observed amygdala abnormalities are a ...re of drug use in the addicts. "Validation of this hypothesis requires either a longitudinal study of individuals at risk who subsequently may or may not develop ...

Resistin integral part of the inflammatory response

...ed to the increase in cytokines," says Lazar. "The hypothesis is that there's cross-talk between fat cells and macrophages via cytokines, both in mouse and humans." These studies demonstrate that blood levels of resistin are a marker for inflammatory disease, and suggest a potential causative role for resi...

Immigration & psychiatric disorders

...h to immigrate to the United States. However, this hypothesis does not explain the study's finding that risk for drug dependence and specific mood and anxiety disorders was similar among foreign-born non-Hispanic Whites and U.S.-born Mexican Americans." Also weighing against the healthy migrant model, the auth...

Dec. 7 tip sheet Annals of Internal Medicine

...rt attack. The authors say "the study supports the hypothesis that different COX-2 inhibitors differ in their cardiovascular effects." Writers in an accompanying editorial examine possible mechanisms by which NANSAIDs and COX-2 inhibitors reduce inflammation and may affect cardiovascular functioning. They concl...

Little evidence to link mercury fillings to human health problems

...when filled may definitively support or refute the hypothesis that dental amalgam causes adverse health effects. To insure a fresh and unbiased approach, experts were selected from outside the dental research community. LSRO selected a panel of internationally recognized experts in the fields of immunotoxicolo...

Study provides clues to alcohol's cancer connection

...group. The authors say their findings "support the hypothesis that the induction of angiogenesis and VEGF expression by ethanol represent an important mechanism of cancer progression associated with alcoholic beverage consumption."...

Holidays, birthdays and postponement of cancer deaths

... that appear when you start data-dredging, testing hypothesis after hypothesis," he says. The study refutes conclusions drawn from earlier studies showing striking changes in death patterns among particular populations. For example, in separate studies over a decade ago of Jewish men and elderly Chines...

Being overweight has a significant effect on a child's quality of life

...Melbourne, Australia, and colleagues, examined the hypothesis that QOL scores would decrease with increasing weight. The research included data collected in 2000 from the Health of Young Victorians Study, which was commenced in 1997. Individuals were recruited via a random 2-stage sampling design from primary ...

Exploring the brain's internal stopwatch

...y wrote, "our findings seem to contradict a recent hypothesis that the neural circuits representing time explicitly might be separate from those that make use of motion signals to keep track of the passage of time. Instead, our results demonstrate that the neural circuitry driving smooth pursuit in primates has...

New theory chalenges current view of how brain stores long-term memory

...ins are critical for memory storage, Routtenberg's hypothesis challenges the widely accepted, 40-year-old model that long-term memories are stabilized only once newly synthesized proteins are transported to recently activated synapses. Indeed, this view is central to the theory of Eric Kandel, who in his No...

Genes in the interferon system important in SLE

...of works. This has led to the recognition of their hypothesis in the last year, and today it represents a white-hot field of research that has attracted a great deal of interest in the pharmaceutical industry. This picture has now been further reinforced by new findings - the result of multidisciplinary and int...

Insulin resistance intervention after stroke focus of $33 million grant

...l therapy. "We have designed the trial to test the hypothesis that pioglitazone will reduce the risk of recurrent stroke or heart attack by 20 percent during 4 years of therapy," said Kernan. In addition to Kernan, Yale investigators include Sandra Alfano (pharmacy), Lawrence Brass, M.D. (neurology), Dawn Brava...

Obesity may affect accuracy of prostate screening

... estrogen and insulin-like growth factor. Another hypothesis states that obesity may actually make available screening tests insensitive. In order to test this hypothesis, Jacques Baillargeon, Ph.D. of the University of Texas Health Science Center in San Antonio and colleagues investigated the association betw...

Animal study shows link between nicotine and atrial flutter

...ney. "Although there were anecdotal reports, this hypothesis had not been previously tested systematically as to the reaction between nicotine and disease in promoting cardiac arrhythmias," said Hrayr Karagueuzian, Ph.D., senior research scientist in the Division of Cardiology at Cedars-Sinai and senior author...

LA BioMed medical/research briefs January 2005

...anagement.com . Reverse epidemiology: a spurious hypothesis or a hardcore reality? Source: Blood Purification...article entitled "Reverse epidemiology: a spurious hypothesis or a hardcore reality?" Kamyar Kalantar-Zadeh, MD, PhD, a principal investigator at LA BioMed, argu...

Nanoscale diagnostic sets sights on Alzheimer's

...tool for Alzheimer's disease, and it validates our hypothesis that there are many biomarkers for disease that go under the radar of conventional diagnostic tools. The extraordinary sensitivity of the bar code assay has a chance to change the way the medical community thinks about molecular diagnostics and the m...

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