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Tag: "hunger" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...y regulate daily rhythms of waking, sleeping, even hunger that is, if its formation has not been disrupted. This could explain why sound sleep doesnt come easily to kids whose signaling systems may not be properly calibrated, OConnor said. However, more research is needed to monitor this signaling path...

How appetite-stimulating brain cells work overtime during fasting

...rease in mitochondria, in turn, allows the brain's hunger center to remain active when periods of food scarcity result in a "negative energy balance," said Sabrina Diano of Yale University School of Medicine, who led the study. Indeed, the researchers found, animals lacking either UCP2 or an enzyme that ...

Are genomic technologies the answer to world hunger?

...se technologies are only likely to impact on world hunger if there is effective and efficient exchange of knowledge and experience through partnerships. A keynote speaker at the ESRC Innogen Centre's Annual Conference to be held on 5th-6th September at Regent's College, London warns of a caveat to this ent...

Eating protein boosts hormone that staves off hunger

...iet augments the body's own PYY, helping to reduce hunger and aid weight loss," said Medical Research Council clinician scientist Rachel Batterham of University College London, who led the new study. Scientists have known that high-protein content meals make people feel more full and reduce food intake, r...

New mechanism explains glucose effect on wakefulness

...n glucose levels known to occur in daily cycles of hunger and eating. Their experiments showed that glucose inhibits orexin neurons by acting on a class of potassium ion channels known as "tandem pore" channels, about which little was known. "Together, these results identify an unexpected physiological ro...

Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

... affirms the central role of the brain in managing hunger and satiety and offers up new targets for drugs that manipulate CPT1c. But none have been developed so far, says Wolfgang. The newly discovered gene makes a protein found only in the brain, notably in the region that controls hunger, thirst and met...

Super-sized cassava plants may help fight hunger in Africa

...ormal cassava roots. The findings could help ease hunger in many countries where people rely heavily on the cassava plant (Manihot esculenta) as a primary food source, said Richard Sayre, the study's lead author and a professor of plant cellular and molecular biology at Ohio State University. The research...

Study reveals mass migration of mormon crickets driven by hunger, fear

...in western North America. The scientists report hunger for protein and salt, and a fear of cannibalism, drives the mass migration of Mormon crickets in western North America. Throughout their seasonal migration, millions of Mormon crickets (relatives of locusts and grasshoppers) cover more than 50 mile...

New University of Toronto research a 'pore' excuse for engineering

...ted that could help satisfy society's never-ending hunger for smaller digital devices and cellphones, and could even lead to new methods for delivering medications via skin patches. The material, known as periodic mesoporous organosilica (PMO), is a thin film interspersed with pores just two-billionths of ...

World's pledge to halve hunger by 2015 looks like empty promise

...most 200 countries agreed in 1990 to cut worldwide hunger in half by 2015. That commitment is now looking li...ys. Although China has reduced its poverty levels, hunger worldwide has grown in more than half of the developing countries since 1990. In fact, the number of...

Open Source Biotechnology alliance for international agriculture

...ltural research focused on poverty alleviation and hunger reduction. The ventureis catalyzed by a 2.55M USD grant to CAMBIA from The Ministry of Foreign Affairs of Norway. The BiOS Initiative ?Biological Innovation for Open Society- is often called Open Source Biotechnology. The BiOS model has resonance wi...

Brainstem blocks pain to protect key behaviors

...themselves a six-second dose of morphine, allowing hunger to override pain." Mason and colleague Hayley Foo, research associate in NPP, studied adult male rats in containers with a wire mesh floor that enabled them to deliver radiant heat to one hind paw. The heat caused no damage but was annoying enough ...

How Fruitflies Know It's Time for Lunch

... How do the competing neural networks of taste and hunger signals decide whether the fly will eat? Future studies pairing behavioral and genetic analysis may begin to reveal answers to these open questions. ...

An essential regulator of body weight revealed

...'s diverse and sometimes conflicting signals about hunger and satiety falls to a small cluster of about 5,000 cells in a region of the brain known as the arcuate nucleus. Hormones such as insulin, leptin, and ghrelin deliver information to the arcuate nucleus about whether the body has sufficient calories a...

Hunger in America rises by 43 percent over last five years

...icans live in households that suffer directly from hunger and food insecurity, including nearly 14 million c...thority on domestic hunger. "This chronic level of hunger so long after the recession ended means that it is a man-made problem. Congress and the White House ...

UN: World in big ecological mess

...of socio-economic ills such as extreme poverty and hunger by 2015. "The overriding conclusion of this assessment is that it lies within the power of human societies to ease the strains we are putting on the nature services of the planet, while continuing to use them to bring better living standards to all,...

Researchers find gene that may be at root of potato blight

... potato late blight could cause food shortages and hunger in several parts of the world." He added that the spread of P. infestans may hit developing nations particularly hard, as potatoes are a staple crop in many of these countries. P. infestans belongs to a group of destructive pathogens called oomycet...

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