Large prospective study examines colon cancer risk in women
...ective cohort study among women do not support the hypothesis that physical activity is related to a lower incid... authors conclude, "our results do not support the hypothesis that physical activity confers significant protection against the overall development of colon cance......nse in peripheral nerve endings. Ziskin's working hypothesis is that as waves reach these nerve endings, a signal is conveyed to the nervous system to modulate neural activity, in the process activating various biological effects. In one possible scenario, millimeter waves trigger the release of opioids that a...Healthy pre-term infants show reduced lung function
...ease per week of gestation. It also reinforces the hypothesis that prematurity alone has an important role in the development of persistent airway obstruction." He added that lower expiratory flows in boys have also been observed in other lung function studies on full-term infants. "However, in our sample, afte...How 'hot' emotional brain interferes with 'cool' processing
...tions for understanding of anxiety disorders. "Our hypothesis has been that people suffering from such anxiety disorders such as depression and PTSD, may see the world differently than other people, and that a distracter associated with trauma may grab control of brain processing and essentially take off-line t...Predicting the risk of death in patients with known coronary artery disease
...w evaluates these findings in light of the current hypothesis that inflammatory markers and homocysteine play a causal role in CAD, and he argues that there is as yet insufficient evidence to support their use in routine cardiovascular risk assessment....IU School of Medicine scientists testing stem cells for peripheral artery disease
...progenitor cells circulating in their blood. "Our hypothesis is that people run out of these cells, or they have inadequate supplies -- perhaps because of genetic factors. As a result, they can't repair or replace damaged blood vessel cells, and heart disease ensues," said Keith March, M.D., Ph.D., director of...National study finds no effect from reducing total dietary fat
...massive Women's Health Initiative (WHI) study. The hypothesis that low-fat diets could help reduce the risk of certain diseases had been assumed, but never tested. But, do the findings mean that what we eat doesn't matter? "Nutrition knowledge has progressed dramatically since the study began," said Mara Vitoli...Periodontitis is associated with pregnancy complications
Results of a new study support the hypothesis that chronic periodontal infection increases the risk of developing preeclampsia in pregnant women. This study printed in February's issue of the Journal of Periodontology.The results also suggest that maternal chronic periodontal disease is a risk f...UCI researchers prove a single memory is processed in three separate parts of the brain
...r the foot-shock training. The results support the hypothesis that the amygdala is involved in overall consolidation of memories of different kinds of experiences....Intelligence may contribute to health inequalities
...a social trend. Researchers in Scotland tested the hypothesis that by taking account of IQ, the relation between socioeconomic position and health would disappear. Their study involved 1,347 men and women, aged 56 in 1987 and living in the West of Scotland. IQ was assessed by written test and socioeconomic posi...Common bacteria pirate natural mechanism to get inside cells
...structing the cell to do bad things, he says. "The hypothesis is that in cancer, for example, the receptors get stuck on 'on'." Receptor over-stimulation also helps explain why some drugs stop being effective over time. "What that means is there are no more receptors outside the cells to be affected by the drug...Soy phytoestrogens may block estrogen effects
...ese seemingly contradictory data," said Wood. "Our hypothesis was that estrogen levels in the body may influence the effects of soy isoflavones." Wood and colleagues evaluated the effects of dietary isoflavones in the presence of different levels of estrogen by rotating 31 postmenopausal cynomolgus monkeys thr...People who restrict calories have 'younger' hearts
...nically exposed to inflammatory stimuli. It is our hypothesis that this chronic inflammation causes chronic tissue damage and associated adaptative fibrosis that leads to premature and accelerated tissue and organ hardening," Dr. Fontana said. Gary Gerstenblith, M.D., F.A.C.C., from the Johns Hopkins Hospital ...Hospital volume doesn't explain racial disparity in cardiovascular procedure deaths
...ar procedures. The researchers focused in on that hypothesis by using data on hundreds of thousands of heart bypass surgeries, angioplasty procedures, abdominal aortic aneurysm repairs and carotid endarterectomy procedures performed from 1998 to 2001. The data were contained in the Nationwide Inpatient Sample,...Caloric restriction appears to prevent primary aging in the heart
...on may play a key role in the aging process. "Our hypothesis is that low-grade, chronic inflammation is mediating primary aging," he says. "It's not the only factor, of course -- aging is a complex process. But we found less inflammation in these people -- less TNFa, C-reactive protein and TGFb -- as well as a...Biomarker for age-related macular degeneration found
...steine and AMD in the mid-1990s and published this hypothesis in a review article in 1999. She and her team previously established that smoking and nutrition are modifiable factors associated with the development and progression of AMD. They are now also searching for the genes involved in the etiology of this ...Link between esophageal cancer and soft drinks debunked by researchers at Yale
...analyzed that data as the first direct test of the hypothesis that soft drinks might have contributed to the inc...ancer," said Mayne. "We found that contrary to the hypothesis put forth by other researchers, carbonated soft drink consumption was inversely associated with esop...Alcohol advertising may contribute to increased drinking among young people
...xpenditures, the results are inconsistent with the hypothesis that a correlation between advertising exposure and drinking could be caused entirely by selective attention on the part of drinkers," the authors report. "The results also contradict claims that advertising is unrelated to youth drinking amounts: t...Medication reduces risk of heart irregularities after cardiac surgery
...eplacement, or Repair (PAPABEAR) trial to test the hypothesis that amiodarone is an effective, well-tolerated, and safe therapy for prevention of atrial tachyarrhythmias after cardiac surgery. The placebo-controlled, randomized trial compared younger patients (less than 65 years) with older patients (65 years ...New Israeli study finds vaccinating all toddlers against hepatitis A
...e transmission in other age groups, supporting the hypothesis of a strong herd immunity effect. Wasley et al concluded that elimination of hepatitis A would require expansion of current recommendations to include routine vaccination of all children. The unanimous ACIP decision to recommend incorporating hepati...