News tagged with circadian

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Feeding the clock

Feeding the clock: Cycles of feeding and fasting drive circadian gene expression in the liver

Medicine & Health / Research

created Nov 25, 2009 | popularity 4.5 / 5 (4) | comments 0

When you eat may be just as vital to your health as what you eat, found researchers at the Salk Institute for Biological Studies. Their experiments in mice revealed that the daily waxing and waning of thousands ...


clock

Research describes connections between Circadian and metabolic systems

Chemistry / Biochemistry

created Nov 17, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- A paper by University of Notre Dame biologist Giles Duffield and a team of researchers offers new insights into a gene that plays a key role in modulating the body’s Circadian system and may ...


New study describes connections between Circadian and metabolic systems

Biology / Other

created Nov 12, 2009 | popularity 2.5 / 5 (2) | comments 0

A paper by University of Notre Dame biologist Giles Duffield and a team of researchers offers new insights into a gene that plays a key role in modulating the body's Circadian system and may also simultaneously modulate its ...


Not just bleach: Hydrogen peroxide may tell time for living cells

Medicine & Health / Research

created Nov 03, 2009 | popularity 4.6 / 5 (7) | comments 2

If a circadian rhythm is like an orchestra - the united expression of the rhythms of millions of cells - a common chemical may serve as the conductor, or at least as the baton.


New pattern in our biological clock overturns long-held theory

Medicine & Health / Research

created Oct 08, 2009 | popularity 4.9 / 5 (22) | comments 4

(PhysOrg.com) -- University of Michigan mathematicians and their British colleagues say they have identified the signal that the brain sends to the rest of the body to control biological rhythms, a finding that overturns ...


Scientists Discover Hunger's Timekeeper

Scientists Discover Hunger's Timekeeper

Medicine & Health / Research

created Aug 28, 2009 | popularity 4.8 / 5 (11) | comments 0

(PhysOrg.com) -- Researchers at Columbia and Rockefeller Universities have identified cells in the stomach that regulate the release of a hormone associated with appetite. The group is the first to show that ...


How would Einstein use e-mail? Letter writers of yore had same correspondence patterns as e-mail users today

Other Sciences / Mathematics

created Sep 25, 2009 | popularity 3.7 / 5 (9) | comments 0

You're not as different from Albert Einstein and Charles Darwin after all, at least when it comes to patterns of correspondence.


Faulty body clock may make kids bipolar

Medicine & Health / Psychology & Psychiatry

created Nov 12, 2009 | popularity 4 / 5 (1) | comments 1

Malfunctioning circadian clock genes may be responsible for bipolar disorder in children. Researchers writing in the open access journal BMC Psychiatry found four versions of the regulatory gene RORB that were associated with p ...


Circadian surprise: Mechanism of temperature synchronization in drosophila

Biology / Biotechnology

created Oct 28, 2009 | popularity 4 / 5 (1) | comments 0

New research reveals a pathway that links peripheral sensory tissues with a "clock" in the brain to regulate molecular processes and behaviors in response to cyclical temperature changes. The research, published by Cell Press ...


monarch butterfly

Migrating monarch butterflies 'nose' their way to Mexico

Biology / Plants & Animals

created Sep 24, 2009 | popularity 3.8 / 5 (4) | comments 0

The annual migration of monarch butterflies from across eastern North America to a specific grove of fir trees in Mexico has long fascinated scientists who have sought to understand just how these delicate ...


First human gene implicated in regulating length of human sleep

Medicine & Health / Genetics

created Aug 13, 2009 | popularity 5 / 5 (2) | comments 1

Scientists have discovered the first gene involved in regulating the optimal length of human sleep, offering a window into a key aspect of slumber, an enigmatic phenomenon that is critical to human physical and mental health.


Researchers find new mechanism for circadian rhythm

Chemistry / Biochemistry

created Oct 20, 2009 | popularity 5 / 5 (2) | comments 0

Molecules that may hold the key to new ways to fight cancer and other diseases have been found to play an important role in regulating circadian rhythm, says Liheng Shi, a researcher in Texas A&M's Department of Veterinary ...


Scientists model 3D structures of proteins that control human clock

Biology / Cell & Microbiology

created Apr 11, 2009 | popularity 4.5 / 5 (6) | comments 0

In an Early Edition issue of The Proceedings of the National Academy of Sciences (PNAS) on April 9, 2009, the researchers report that they have been able to determine the molecular structure of a plant photolyase protein that ...


A Biological Basis for the 8-Hour Workday? Researchers uncover 8- and 12-hour Cycles of Gene Activity

A Biological Basis for the 8-Hour Workday? Researchers uncover 8- and 12-hour Cycles of Gene Activity

Medicine & Health / Genetics

created Apr 22, 2009 | popularity 4.8 / 5 (12) | comments 0

(PhysOrg.com) -- The circadian clock coordinates physiological and behavioral processes on a 24-hour rhythm, allowing animals to anticipate changes in their environment and prepare accordingly. Scientists ...


The food-energy cellular connection revealed

Medicine & Health / Research

created Oct 15, 2009 | popularity 4.6 / 5 (8) | comments 1

Our body's activity levels fall and rise to the beat of our internal drums—the 24-hour cycles that govern fundamental physiological functions, from sleeping and feeding patterns to the energy available to our cells. Whereas ...