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Tag: "circadian" at medical news

Cocaine Exposure can Alter Neuronal Development in Zebrafish

...lopment and acutely dysregulate the expression of circadian genes and those affecting melatonin signaling, growth and neurotransmission. The circadian factors, including the principal circadian hormone melatonin, can attenuate the prenatal effects of ...

Reason Behind Sleepy Feeling During Sickness Found

... beginning of connecting it with genes involved in circadian rhythms, Johnson said....

Advanced Cancer Patients Have Sleep Disorders

...deep sleep and dream sleep and altering the normal circadian rhythms, she says. Antidepressants, too, have been shown to cause either sleepiness or insomnia. The study, funded by the National Institutes of Health/National Institute of Nursing Research (NIH/NINR), is limited by the fact that contributing vari...

Study Reveals Little-known Cell Networks Vital to Circadian Rhythm

...d eating, in all living organisms. In mammals, the circadian clock is organized hierarchically in a series of ...are in fact essential to the operation of cellular circadian clocks. "Our study reveals some previously overlooked mechanisms for sustaining cellular circadia...

Clock Gene Plays Role in Weight Gain, Study Finds

...king the gene Nocturnin, which is regulated by the circadian clock in the organs and tissues of mammals, are re...or some time that there are many links between the circadian clock and various aspects of physiology and metabolism, said Carla Green, the studys lead author and...

Research Suggests Breast Cancer Fatigue Begins Before Chemo

... establish values for sleep, wake, activity, rest, circadian rhythms and fatigue and how they interrelate in women before and during the first year after chemotherapy....

Start School Later in the Morning, Say Sleepy Teens

.... 'Teenagers need more sleep than adults and their circadian rhythms are phase shifted so that their ideal bedtime is midnight to 1:00 a.m.; yet they have to get up at 6:30 or earlier for high school. While adults usually need 7 to 8 hours of sleep, teens need 8 to 9 hours, he says. In addition, teens go to ...

Viagra may Be Useful for Treating Jet Lag

...unction in a signalling pathway that regulates the circadian cycle, the body's daily clock. Argentine researchers, Patricia Agostino and colleagues of the Universidad Nacional de Quilmes in Buenos Aires, injected hamsters with sildenafil and then exposed them to lights which were turned on and off to simulat...

Circadian Clocks Triggered Chemical Reactions may Be Behind Jet Lag

...y have explained the biological mechanism by which circadian clocks, a factor responsible for why people get sl...tudy, the researchers focused on how a fungus uses circadian clock light sensors to control production of carotenoids, which protect against damage from the sun'...

Insufficient Sleep Increases Risk of Cardiovascular Disease: Study

... get less sleep because of the disruption in their circadian or sleep-wake rhythms. Banks, an assistant professor at the University of Pennsylvania in Philadelphia, will present her study Wednesday at SLEEP 2007, the annual gathering of the Associated Professional Sleep Societies in Minneapolis, Minnesota. ...

Life Functions Governed by Circadian Rhythms-new Research

... conducted by Colorado State University shows that circadian rhythms dominate all life function. The functions ...life functions and metabolism are dominated by the circadian rhythm, thus regulating behaviour pattern of living. Knowing about oscillation properties of genes ...

Insomnia-related Symptoms High Among ‘Night Owls

...search should investigate the relationship between circadian rhythms and insomnia, especially with the severity of the ‘night owl’ group,” said Ong. “These factors may serve to perpetuate the insomnia disorder, and might be particularly important to consider when treating this subgroup of insomniacs.” Insomn...

Timing – Crucial for Asthma Drugs to Wor

...l times in a day. Body rhythms, also called as the circadian rhythms influences allergy and asthma. "Taking your allergy medication at night assures that it will be circulating in your blood stream when you most need it, early the next morning," Martin said. Asthma symptoms, could reach a crescendo at about...

Mild Head Injuries Increase Risk of Sleep Disorders

...raumatic brain injury. Those suspected of having a circadian rhythm sleep disorder (CRSD) (i.e. problems with t...le,” said Ayalon. In addition, Ayalon said since circadian rhythm sleep disorders are often associated with cognitive and psychological problems, treatment mig...

Use Daylight-saving Change to Practice Healthy Sleep Habits

...ould we do when the clock jukes and jives with our circadian rhythms, those biological waves that regulate our ...a dose of sunshine in the morning to quickly reset circadian rhythms. Sunlight is most the powerful regulator. * Don’t drink caffeine after 10 a.m. or lunchtime...

Reset Your Biological Clock and Prevent Heart Attack!

...ted in a discrete brain area that tightly regulate circadian rhythms in behavior, temperature, and metabolism. ...nd complimentary effects on blood pressure and its circadian variation. What’s more, genes relevant to the production and breakdown of catecholamines – the hormo...

Rhythms of Life

...means 'day') was coined by Franz Halberg. When the circadian rhythm is synchronized with nature our bodies resp...s, and the body prepares for rest and sleep. The circadian rhythm is controlled by a group of cells, situated in the hypothalamus of the brain, called Supra ...

Researchers Investigate Gene Linked With Circadian Liver Clock

...will understand the importance of a smooth-running circadian clock. Crossing time zones decouples our biologica...enes in peripheral tissues are controlled by local circadian clocks or by systemic cues that are directly or indirectly controlled by the SCN pacemaker. In a n...

Chronotype, a Measure to Assess Patterns of Daily Activities

... relative influences of these two types of cues on circadian rhythms are not fully understood by scientists, an...hers sought to address this issue by comparing the circadian behaviors of people experiencing these influences to different extents in their daily lives. The m...

Hope For Bedwetting Children

...led, in part, by our own internal daily clocks, or circadian rhythm. With the transition from day to night, our...tion for hours of sleep. We are not born with this circadian rhythm, but it usually develops in early childhood. Some children take longer to develop this rhyt...

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