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Tag: "clock" at biology news

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...l ground between two other clocks -- the circadian clock that operates over the 24-hour light-dark cycle, and the millisecond clock that is crucial for such functions as motor control and speech generation and recognition. Meck is a...

Tiny roundworm's telomeres help scientists to tease apart different types of aging

...ssive erosion of telomeres to a genetic biological clock that winds down over time, leading to a gradual decline in our mental and physical prowess. Yet, C. elegans, a tiny creature, which spends the better part of its adult life without a single dividing cell in its body, still shows signs of old age and ...

New understanding of jet lag

...at the brain's central timekeeper - the biological clock that regulates waking and sleeping cycles - has tw...ent of medicines that would "reset" the biological clock so travelers could adjust much more quickly to rapid time zone changes. Most people require about tw...

A novel method to measure circadian cycles

.... This suggests that the genetics of the circadian clock likewise varies between individuals. Unlike an individual's true rhythm, a fibroblast cell culture's rhythm does not vary with changes in light exposure or sleep habits. The researchers point out that their method can expose differences in circadia...

Temperature regulates circadian clock in zebrafish

The biological clock controls the circadian rhythms of a wide range of ...ing patterns. While it's well known that circadian clock elements sense and respond to light cycles, much less is known about how daily temperature cycles af...

How monarch butterflies are wired for navigation

...hers also pinpointed the location of the circadian clock in the butterfly brain. Such circadian clocks gove...ed to discover tiny neural fibers containing a key clock protein that connected with the polarization photoreceptors in the butterfly eye. "This pathway has...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...utrient loads. The scientists operated around the clock to maximize expensive ship time, sampling at 14 locations in all; five involved depths 3,300 meters and more below ice. The explorers employed a suite of tools to conduct "gentle sampling," including a remotely operated underwater vehicle, a benthic ...

Discovery clarifies role of peptide in biological clock

...vered that VIP is needed by the brain's biological clock to coordinate daily rhythms in behavior and physio...ck," Herzog said. "We've found that the biological clock is still running, but its internal synchrony is uncoordinated. This causes irregular patterns of sle...

The circadian clock: Understanding nature's timepiece

...conomic benefits to figuring out how the circadian clock works," Antle says. "We are probably still at leas... developing a pill that could reset your circadian clock to eliminate jet lag, but this new perspective in how the cells are organized definitely improves ou...

After a time-shift, mixed signals from the circadian clock

...gy, and biochemistry are controlled by the central clock within a brain structure known as the suprachiasmatic nucleus (SCN). The clock is synchronized to environmental cycles of light and dark. It is well known, from everyday experienc...

Glow-in-the-dark zebrafish at UH hold keys to biological clocks

...ve found new tools that shed light upon biological clock cycles. Gregory M. Cahill, associate professor of...does take some sort of environmental input for the clock to start. In this case it was exposure to light/dark cycles after the fourth day of development, abo...

Effective Cancer Treatments Follow The Clock

...ientists found that the body's internal biological clock affects the survival of immune cells that are targ...lock. “Knowing the molecular mechanism of internal clock function lets us make some important predictions of how these mice may respond to drug treatment,?sa...

Wisconsin scientists grow critical nerve cells

...to emerge in a developing embryo. With the ticking clock of development in mind, Zhang and his team deduced that there is only a thin sliver of time - roughly the third and fourth week of human development - in which stem cells could be successfully prodded to transform themselves into spinal motor neurons...

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