Tag: "exaggerated" at biology news

New study confirms process leading to disorder causing male characteristics in women

...n chorionic gonadotropin (hCG). The stimuli cause exaggerated secretion of 17-hydroxyprogesterone (17-OHP) and, ...esponses in PCOS observed in the study may reflect exaggerated acute steroidogenic responses that parallel escalating doses of rhLH. However, an alternative explan...

The UV advantage

...of this continuing rhetorical campaign of fear and exaggerated claims. There is no doubt vitamin D is the best way for the body to control abnormal cell growth which could lead to: Improved bone health and prevention of osteoporosis, osteomalacia, and rickets Reduced risk of heart disease, stroke, and breast,...

Imaging study shows brain maturing

...w years ago, Rapoport and colleagues discovered an exaggerated wave of gray matter loss in teens with early onset schizophrenia. These teens, who became psychotic prior to puberty, lost four times the normal amount of gray matter in their frontal lobes, suggesting that childhood onset schizophrenia "may be an ex...

Is genetic research hyped by the media?

... newspaper articles contained moderately to highly exaggerated claims. Given that most people obtain information ...journalists and scientists alike may contribute to exaggerated claims in newspapers: the journalist in seeking the "hot" story, and the scientist in pursuing acade...

Rimonbant shows promise in addressing multiple risk factors

...and normalizes the over-activation associated with exaggerated food intake and/or smoking. This action results in weight loss, improvement of cardiovascular/ metabolic risk factors in overweight/obese patients and reduces tobacco dependence without post cessation weight gain in people who smoke. ABOUT RIO TRIA...

Improved estimates of population extinction risk (Harding and McNamara)

... population extinction risk. The errors lead to an exaggerated overall variance, but also introduce negative autocorrelations in the time series of population growth data. Interestingly, these two effects exactly counterbalance. Thus, a practical and efficient way to resolve the problem of dealing with sampling ...

Imperial researchers show novel flu treatment eliminates symptoms in mice

... But it's this that causes most of the damage. The exaggerated immune response produces inflammatory molecules that lead to what's known as a 'cytokine storm'. Essentially too many cells clog up the airways and prevent efficient transfer of oxygen into the bloodstream. "By selectively reducing this cellular load...

Does a new hypothesis help explain higher levels of hypertension among African-Americans?

...ences. This hypothesis assumes that blacks exhibit exaggerated blood pressure (BP) responses to stress which produce vascular damage that underlies the premature development of essential hypertension. An alternative to this widely accepted approach is the "pressure natriuresis" hypothesis. It supposes that stre...

Built-in eyeshade offers clue to prehistoric past

...pecimen was. They soon discovered that its several exaggerated and unique features made it of "more than normal interest" to paleontologists. Unlike other trilobites eyes, the giant eyes on this specimen stand up like twin towers or have extensions of their palpebral lobes that stretch outward above the eye. "T...

As autumn approaches, this chickadee's brain begins to expand

... truly awe-inspiring. "Our hypothesis is that this exaggerated growth occurs when the birds need it the most - and we're interested in finding out what exactly triggers it." Songbirds are the first species of vertebrate in which brain growth during adulthood has been found to occur, Saldanha says. By studying ne...

U-M scientists trigger new hair growth in mice

... also noticed other skin changes that suggested an exaggerated growth phase of the hair cycle. Dlugosz suggested applying 4-OHT just once, instead of every day, and to do it during the hair follicles resting phase or telogen. Hair follicles are like a mini-organ in the body, explains Van Mater, a graduate stude...

Dartmouth researchers find two circadian clocks in the same plant tissue

...gene, which favored temperature signals, showed an exaggerated response to pulses of cold air relative to the photosynthetic gene that responded more to light signals. "This could only occur if the two genes were responding to two different clocks," says McClung. "Since both the genes are expressed in the mesop...

Dyslexic children`s brains operate more like those of normal readers following training

...tially, the questions were asked in a slower, more exaggerated fashion than in normal speech to help the children understand the sounds inside the words. As the player progressed, the speed of the voice in the program slowly increased. ``Each child worked at his or her own level,`` Tallal said. ``The goal was to...

Council for Responsible Nutrition questions WAVE study conclusions

...amin and Estrogen (WAVE) Trial study as being "an exaggerated recommendation based on inconclusive data." CRN noted that careful analysis of the study reveals the study showed no effects beyond random variations in response and that the researchers based their conclusions on statistically insignificant data. ...

Damage from acid rain pollution is far worse than previously believed

...ress or disease, then experience declines far more exaggerated than expected," says Donald DeHayes, Dean and Professor in the School of Natural Resources at The University of Vermont. DeHayes co-authored a study in the most recent issue of the journal "Ecosystem Health" released in June at an international conf...

Rats depleted of salt become sensitized to amphetamine, show unusual growth of brain cells

...lt become sensitized to amphetamine, exhibiting an exaggerated hyperactive response to the drug and an unusual pattern of neuronal growth in a part of their brains, neuroscientists have found. The researchers, headed by University of Washington psychologist Ilene Bernstein, discovered that nerve cells in the nu...

The K-T impact extinctions: Dust didn't do it

...assed near the Earth on January 7 and news reports exaggerated its potential impact effects. Based on the old, inaccurate dust numbers, which erroneously suggested that a medium-sized asteroid (1-2 km in diameter) could cause global climate change and famine, scientists calculated that one's chance of getting ki...

Is there a link between alcohol and allergies?

...trol of the immune response to these allergens, an exaggerated response would be expected." Jerrells speculated that alcohol, either directly or indirectly through metabolites, might non-specifically activate a very complicated function of the immune system to produce IgE. An alternative possibility is that a...

Single enzyme may be linked to obesity

...of Tg mice on low-fat diets. The ratio was further exaggerated when Tg mice were fed high-fat diets. We were surprised to find that it took only a modest increase in this enzyme to cause the mice to become viscerally obese. The animals also developed diabetes, became resistant to insulin, developed high blood li...

Beware of leap year when predicting climate change, warns researcher

...rate tropical year. While some short-term studies exaggerated the advance of spring, others using records dating back two or three centuries underestimated its arrival. "All of the phenological studies I reviewed are essentially correct the signs of spring are definitely coming earlier, but not quite as early ...

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