Tag: "caffeine" at biology news
Chocolate Treats Can Land Racehorse Trainers In Trouble
...showed detectable concentrations of the stimulants caffeine
and theobromine-- substances that are banned for h...fied. However, Sams said he doubts the amounts of caffeine
and theobrominefound in the horses he tested would have given the animals a real advantage over othe...
3,500 Earth And Space Scientists To Report Latest Findings At Boston Meeting
...etts, Boston, who have studied the significance of caffeine
in theharbor (which is not thought to be related to any massive dumping of tealeaves). A series of poster displays to be discussed Thursday afternoon, May 28,will address the issue of natural restoration of contaminated aquifers, usingCape Co...
Duke Researchers Finds That Moderate Caffeine Use Boosts Blood Pressure, Potential For Heart Disease
...veloping heart disease over a lifetime of moderate caffeine
consumption,according to a Duke University researc... "The relevant message here is that the more caffeine
you consume duringthe day in coffee, tea or soft drinks, the higher your blood pressure is likelyto ...
NYU researchers: Plants have signaling mechanism similar to one in human brain
... plants make other neuroactivecompounds: nicotine, caffeine
and cocaine, for example. Coruzzi suggests thatthese compounds' primary function in plants may be to activate a variety ofstill undiscovered cell-to-cell signaling systems. This would contradict the most widely held hypothesis, that psychoactivesub...
Plants get the message, too
...nt-derived molecules that act in the brain include caffeine
andcocaine. Until now, it was widely believed that the receptors for thesemolecules--which are essential for transmitting messages into the cell--werefound only in animals. But Coruzzi's previous research with Arabidopsis led herto believe otherwise....
Vanderbilt University Medical Center Forms Institute For Coffee Studies
...rgone alcoholism treatment. "Studies of coffee and caffeine
have shown that drinking three or four cups ofcoffee a day is not harmful in healthy people," said Dr. Peter R. Martin, professor of Psychiatry and Pharmacology and director of the division ofAddiction Medicine. "Man has decided, for whatever reason,...
Debate Brews Over Caffeine Addiction
... a day, a fairly typical consumptionfor Americans, caffeine
has no affect on the area of the brain involved wi...study with laboratory animals, whichconfirmed that caffeine
consumed in moderation contributes to increasedalertnessand energy but does not bring about dependen...
Tip Sheet: Health Benefits Of Caffeinated Beverages
...ning of the arteries. One paper also reports that caffeine
isnot addictive when consumed in moderation. Foll...veperformance, the potential to become addicted to caffeine
appears to be quiteunlikely, especially at moderate levels of consumption, according to the authorof...
Modifying plant genes without foreign DNA
...oducers. We may one day be able to quickly reduce caffeine
in coffee beans orshorten the long-chain fatty acids found in plants like soybeans -- making thefat in them more heart-healthy like olive oil," he says. The technique called chimeraplasty was developed by Kimeragen Inc. of Newtown,Pa. In plants, ch...
Moderate caffeine use does not increase miscarriage risk but high caffeine use doubles risk
Consuming the amount of caffeine
equivalent to that found in one to two cups of cof...g a miscarriage. However, consuming the amount of caffeine
contained in five or more cups ofcoffee a day appears to double miscarriage risk, according to resul...
Two studies add to the growing evidence that green tea is beneficial for health, according to the
...hin-polyphenols and many other compounds including caffeine
-- can increase the utilization ofenergy beyond the effects of caffeine
alone. Consumption of green tea produced thermogenesis and increased energy expenditure and fat oxid...
Tea drinking improves bone strength in older women
...gnificant cause of illness in elderly women. High caffeine
intake has been reported as a risk factor for reduced BMD. However, tea contains other substances which may explain why tea drinking has a potentially beneficial effect on BMD. In research published in The American Journal of Clinical Nutrition, He...
Caffeine in colas: 'The Real Thing' isn't the taste
"The marketing parallels between nicotine and caffeine
are pretty stunning" The majority of people who drink colas can't tell whether a soda contains caffeine
or not, according to a new Johns Hopkins study. "This stands in sharp contrast to the claim some so...
Report on dietary supplements containing ephedra makes urgent call for research to develop dose guidelines, safety warnings
... the herbal plant ma huang, and often also contain caffeine
derived from guarana. "Both ephedra and caffeine
are stimulant drugs, and when consumed in combination, the stimulation is much more intense," Benowi...
Coffee may protect against bladder cancer
...ous research which shows that the toxic effects of caffeine
may be reduced in smokers, while caffeine
may moderate the harmful effects of the cancer causing agents produced by smoking....
UW researchers show that the human genome is helpless in the face of chocolate
...ters were more likely to dislike solutions of pure caffeine
in water. However, those differences were quickly eliminated by the addition of neohesperidine DC, an intense sweetener, derived from bitter oranges and supplied to the researchers by a company in Spain. There were no differences between PROP taste...
Two studies find supplementation and moderation are keys to lowering homocysteine
...ith a similar difference occurring in consumers of caffeine
in the form of coffee or cola, but not tea. Significantly lower homocysteine levels were evident in those who regularly took vitamin B supplements, as opposed to those who did not. A smaller study of 278 elderly subjects, the New Mexico Aging Proc...
Chemical found in herbal medicine might complicate pregnancy
...us to a pregnant womans drinking coffee: while the caffeine
from a cup of coffee is quickly cleared from the mothers system, it can build up in the womb. Mobashery added that further study would be needed to prove a correlation between gingko and complications during a pregnancy. Their study used placental bl...
Women more susceptible to orthostatic hypotension
...r than three hours after a meal and 12 hours after caffeine
ingestion. After establishment of baseline measures, data were collected during a five minute period of supine rest, followed by a progressive HUT procedure that included five minutes at each of 20, 40, and 60 of tilt. The subjects were then returne...
Medicines, caffeine and antibacterial soap among contaminants found in American streams
...ed the national study. In addition to medications, caffeine
and cotinine, a nicotine breakdown product, also were among the most frequently detected compounds. So too were cholesterol and coprostanol, steroids that can be indicative of fecal contamination. Rounding out the list of most frequently detected com...
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