Tag: "clock" at medical news
MRI-Guided Cancer Surgery
...e. "So for these patients, we have set the clock
back," Lewin said. "And they can go back to work in a day or so with a minimum of discomfort." Until recently, MRI was used only for diagnosis. Now doctors in a handful of medical centers around the country are experimenting with the imaging ...
UCSF AIDS Expert Warns Against Early Treatment For HIV Infection
...writes, "treatment with antiviral drugs starts the clock
tickingtoo soon, limiting future options and making therapy a necessity for thelifetime of the person." He adds, "Any decision to stop the drugs could only be made if one hadassurances that all infected cells had been eliminated--now an unlikelyeve...
University Of Texas Southwestern Studies Excimer Laser For Treating Farsightedness With Combined
...ould've imagined what it feelslike to look up at a clock
on the wall or the bottom line of an eye chart and,for the first time, see it with my own eyes." During the procedure -- which is currently being done at Zale LipshyUniversity Hospital's Laser Center for Vision -- a cool beam of light gentlyr...
Unlocking Secrets Of The Body's Inner Clock; Researchers Discover Key Control Mechanism For An Area Of The Brain That Regulates Sleep
...ight before their normal waking time.The circadian clock
adjusted to the light; in other words, the hamster...before they would normally wake up, theircircadian clock
did not shift, suggesting orphanin was blocking the process thatnormally converts light into a brain...
Research Links Healthy Biological Clock To Longevity
Aging hamsters who received a new biological clock
had their lifespan increasedby 20 per cent, provin...h andlongevity of an organism. Once the biological clock
of a hamster begins to deteriorate, death occurswithin three months. However, when University of Tor...
Early to rise: Research offers clues to older people's sleep habits
...24 hours, countering the belief that the circadian clock
has a 25-hour periodthat shortens in duration with...This study indicates that changes in the circadian clock
are not inevitablewith age," says Andrew A. Monjan, Ph.D., M.P.H., Chief of the Neurobiology ofAging...
Northwestern researchers present findings at Neuroscience Meeting
...dy points to genetic basis for aging of biological clock
Results from a recent study conducted at Northwestern University should helpneuroscientists better understand the genes that drive human beings' biologicalclocks and how those genes might change as people age. The findings, which will be presented ...
Study casts doubt that melatonin goes down as age goes up: Older buyers take note
...latonin secretion. "The idea that a pineal aging clock
winds down as you get older is simply not true," says Jamie M. Zeitzer, Ph.D., an author of the paper. "Being older does not cause a person to have low melatonin levels. While we know that some older individuals have low melatonin levels, it isn't ...
UK College of Medicine researchers develop novel technologies to study neural genes
...s. Increasing our understanding of the biological clock
mechanism ultimately may lead to treatments for jet lag, seasonal affective disorder (SAD) and certain sleep disorders. McMahon's part of the team is introducing a foreign gene into the DNA of mice. The foreign gene produces a fluorescent protein ...
Brown researchers find new photoreceptor and visual system in the eye
...travel within the optic nerve and connect with the clock
region in the brain. We think this population of cells plays a role in setting the circadian clock
and probably in a variety of other functions where all the brain needs to know is how bright it is, ...
Sleep less, live longer? Increased death rate associated with sleeping 8 hours or more
...dies are needed to determine if setting your alarm clock
earlier will actually improve your health. But, he added individuals who now average 6.5 hours of sleep a night, can be reassured that this is a safe amount of sleep. From a health standpoint, there is no reason to sleep longer. The study, which add...
Physics tip sheet #9 April 17, 2002
... more precise position measurements and for better clock
synchronization. Journal article: http://link.aps.org/abstract/PRL/v88/e183602 2) The attosecond camera (Two papers) J. Itatani, F. Qur, G. L. Yudin, M. Yu. Ivanov, F. Krausz, and P. B. Corkum; and M. Kitzler, N. Milosevic, A. Scrinzi, F. Krausz, ...
Exposure to light and sleep pattern alteration
...ow more about the response of the human biological clock
to varying durations of light pulses, says study author Samir Bangalore, of Northwestern University Medical School in Chicago, IL. For the study, 10 men and 22 women, average age 29, were admitted for two stays at a clinical research center, each ...
Waiting to have a baby
...n about the difficulty of adjusting the biological clock
to bear a child later in life, the future of descendants may not seem important to many people. But for those interested in their family's end-game evolutionary success as well as near-term parenthood, reproducing late in life is apparently a no-win...
Aspirin steps up as anti-inflammatory for arteries
...lood-thinning actions. But our research turns the clock
back on aspirin, and suggests that some of aspirins effects really are due to its anti-inflammatory properties, which people have known about for 100 years or more, says Patrick J. T. Vallance, M.D., FRCP study author and professor of clinical pharma...
New journal series will educate physicians about medical errors
... hospital should have someone with them around the clock
to act as their advocate, watchdog and an additional set of eyes. In reality, that's not an option for many patients. And it shouldn't be necessary. A hospital should be the safest place in the world." When contemplating non-emergency care, cons...
Insight into how the body tells time
...ppear to be rhythmically regulated by the internal clock
of the Drosophila fly and found hundreds more gene...rnal environment responds to our innate biological clock
could help us develop better ways of adjusting to challenging circumstances, like unusual work shift...
Artificial liver trials show progress, as transplant candidates wait
...mes a week for a few hours, rather than around the clock
in the intensive care unit. "The definitive studies are being done now, and only time will tell," he says. "But we've had good success so far, and we hope to continue."...
Rising cost of cigarettes may help smokers honor new years resolution to quit
...resolved to ring in a smoke-free New Year when the clock
struck midnight on December 31st. Leading economic researchers say this surge can be attributed to two key factors: cigarette price hikes and smoking ban legislation, which have taken hold in numerous states across the country. "The data are clear...
Melatonin may have an effect on nocturnal blood pressure
...dy. While this small study suggests the biological clock
might be a mechanism involved in the blood pressure reduction, Scheer and colleagues don't exclude that improved sleep over a long time might help reduce blood pressure as well. Dan Jones, M.D., an American Heart Association spokesperson and high blo...