Tag: "appetite" at biology news

Old bones unearth new date for giant deer's last stand

...refined. The question is, did early man develop an appetite for supersized deer? Professor Adrian Lister says: "Although we can now bring the extinction date forward by 3,000 years or so, we still can't tell what actually killed off these beasts. Man could have been the ultimate destroyer, but climate change ...

Biological importance of basal activity of appetite suppressor

...ts ligand amelanocyte-stimulat-ing hormone (a-MHC) appetite is suppressed. When its activity is suppressed by its ligand agouti-related protein (AGRP), appetite is enhanced. MC4R also has a low level activation, resulting in appetite suppression, even in the ab...

Scientists identify new cause of obesity

...ls the urge to eat has now been found to influence appetite in a second way. The discovery identifies a potent...ardiovascular Disease shows that MC4R also affects appetite in a way unrelated to the signaling loop that has been the focus of most appetite-suppression resear...

Yerkes researchers to present array of new data at Society for Neuroscience Meeting

... order to better understand and ultimately control appetite and addiction. (6 p.m. 7 p.m.) October 26, 2004 Each study is embargoed until the date and time of presentation. Poster Presentations Dr. Kuhar and his research team: showed early life experiences play a role in immune system dev...

Abundance of myostatin in infected swine may result in reduced muscle mass

...ed is the brain, which is why animals have reduced appetite when they are sick. "The cytokine molecules are the key, because they are the messengers used by the immune system to alter other systems that are relevant to growth," Johnson said. At the suggestion of co-author Jeffery Escobar, a for...

Chimpanzee brains are asymmetrical in key areas and their handedness reflects it

...earning and consolidation of spatial memory, mood, appetite and sleep) was asymmetrical, its right half significantly larger than its left. This asymmetry was bigger in males. These findings are consistent with studies of human hippocampi, which are also asymmetrical. At the same time, just as in humans, t...

Stanford study links obesity to hormonal changes from lack of sleep

...is common and food is widely available, changes in appetite regulatory hormones with sleep curtailment may con...hat sleep loss impacts several hormones related to appetite and food intake, and two such hormones - ghrelin and leptin - are thought to play a role in the inte...

Desires for fatty foods and alcohol share a chemical trigger

...roduce more galanin, which, in turn, increases the appetite for fat. In a healthy person, however, there are counteracting signals that break this loop, said Hoebel. In animals given galanin and access to alcohol, the role of the chemical appeared to be subverted: it boosted alcohol intake instead of eatin...

Researchers blend folk treatment, high tech for promising anti-cancer compound

...t Chinese remedy that uses cancer cells' rapacious appetite for iron to make them a target. The substance, artemisinin, is derived from the wormwood plant and has been used in China since ancient times to treat malaria. Earlier work by Henry Lai and Narendra Singh, both UW bioengineers, indicated that artemis...

New research questions basic tenet of neuron function

...to stress, pain, and the physical drives of sleep, appetite and sexuality. A better understanding of such fundamental mechanisms of neurotransmitter release will aid researchers in their investigations of psychiatric disorders and neurological disorders such as mental retardation, autism, depression and epi...

Leptin: A 'missing link' between obesity and diabetes?

...o different brain-body pathways: One that controls appetite and fat storage, and another that tells the liver what to do with its glucose reserves. It's already known that disrupting leptin's appetite-controlling role leads to obesity, and that obesity is known to significantly raise the risk of diabetes. But...

Mutant protein developed by Hebrew University scientists

...ion first because of its involvement in control of appetite and later by its effect on growth, puberty, digestion and immunological processes. Leptin can also have negative consequences, such as, for example, enhancing the spread of tumorous growths. In his laboratory at the Hebrew University's Faculty of ...

Unconventional brain circuits offer clues to insomnia-obesity connection

...tegration of the brain cells' roles in arousal and appetite remains largely unexplored, Horvath said. In a series of experiments in brain slices and in mice, the researchers examined the organization and stability of inputs to hypocretin cell bodies, which act as filters in other brain cells. They found that ...

A healthy internal clock keeps weight off

... and in a specific part of the brain that controls appetite and wakefulness. About 3-10 percent of the genes i... and in a specific part of the brain that controls appetite and wakefulness. About 3-10 percent of the genes in any given tissue turn on and off in circadian rh...

Faulty body clock leads to obesity and diabetes

...iologic outputs of the biological clock, sleep and appetite are interconnected at the molecular and behavioral levels, yielding implications on the role of internal biological timing in optimizing strategies to reduce and sustain weight loss resulting from both medical and lifestyle modifications." The resear...

JCI table of contents May 2, 2005

... natural cannabis-like proteins that can stimulate appetite and regulate fat metabolism by binding to receptor... may be useful for treating obesity by suppressing appetite and food intake. In a new study appearing in the May 2 print issue of The Journal of Clinical Invest...

Liver metabolism goes to pot

... natural cannabis-like proteins that can stimulate appetite and regulate fat metabolism by binding to receptor... may be useful for treating obesity by suppressing appetite and food intake. In a new study appearing in the May 2 print issue of The Journal of Clinical Invest...

Consequences of exposure to an energy rich diet during development

...c intake. Overall, it appears that an individual's appetite and cardiovascular risk may be "programmed" by excess maternal energy intake so predisposing an individual to diabetes or raised blood pressure later in life. Also in this issue, our laboratory presents results from a recent study entitled "Developme...

Early origins of obesity: Programming the appetite regulatory system

...ts before birth can permanently change patterns of appetite and fat deposition in child and adult life. A col...atal experience and patterns of fat deposition and appetite regulation in postnatal life. Both epidemiological studies across large sectors of human populations...

Colleagues, friends gather to commemorate Nobel Laureate Axelrod

...sponds to stress; neural communications underlying appetite and addiction; and how individuals react differently to drugs depending on their genetic makeup. Overflow rooms for NIH staff will be available in Natcher Auditorium. The symposium can also be viewed online at http://videocast.nih.gov/ . For more i...

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(Date:7/30/2014)... Scientists studying the potential effects of climate change ... focusing on the wrong factors, according to a ... Wildlife Conservation Society, University of Queensland, and other ... conservation science is missing the point when it ... majority of climate change scientists focus on the ...
(Date:7/30/2014)... points is a straight line, and now Harvard researchers ... axiom to heart. , Though competition among individual ... racing for the chance to fertilize the egg, Harvard ... that allow them to take a straighter path to ... Heidi Fisher, a post-doctoral student working in the lab ...
(Date:7/30/2014)... Governing Board of the Entomological Society of America (ESA) ... 2014. The election as a Fellow acknowledges outstanding contributions ... research, teaching, extension, or administration. The following Fellows will ... Meeting -- which will be held November 16-19, 2014 ... is a professor with the Department of Plant, ...
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