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Tag: "the" at biology news

A new plant-bacterial symbiotic mechanism promising for crop applications

The growth of most plants depends on the presence of sufficient amounts of nitrogen contained in the soil. However, a family of plants, the legumes, is partially free of this constraint thanks to its a...

Hormone helps mice 'hibernate,' survive starvation

... have found. The starvation-fighting effects of the hormone, called fibroblast growth factor 21 (FGF21), are described for the first time in a study appearing online today in Cell Metabolism. FGF21, triggered in starving m...

Research team identifies new Alzheimer's gene

A study comparing more genetic markers in the DNA of people with and without Alzheimer’s disease...se. The finding, announced today by researchers at the Translational Genomics Research Institute (TGen), Banner Alzheimer’s Institute, Kronos Science Labor...

Bigger horns equal better genes

...ith a greater chance of survival. "The size of the horns reliably advertises the genetic quality of the ibex—and the bigger, the better," said Dr. David Coltman, an evolutionary gen...

How to lose weight and not go hungry: HU researcher develops drug that mimics feeling of 'fullness'

Yaniv Linde in his lab. Millions of people the world over suffer today from obesity, yet there is... accepted solution. However, a young researcher at the Hebrew University of Jerusalem feels he has come up with a practical weight loss solution for the ob...

Envisat captures first image of Sargassum from space

Sargassum seaweed has been detected from space for the first time using optical radiance data from the Medium Resolution Imaging Spectrometer (MERIS) aboard Envisat. The ability to monitor Sargassum glob...

Dirty snow may warm Arctic as much as greenhouse gases

... -- dirty snow -- can explain one-third or more of the Arctic warming primarily attributed to greenhouse ...om tailpipes, smoke stacks and forest fires enters the atmosphere and falls to the ground. Soot-infused snow is darker than natural snow. Dark surfaces abs...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...er say they are moving closer to understanding why the most lethal form of human malaria has become resistant to drug treatment in the past three decades. They have been able to artificially construct, and then express in yeast, a prot...

Loss of stem cells correlates with premature aging in animal study

Researchers at the Abramson Family Cancer Research Institute of the University of Pennsylvania have found that deleting a gene important in embryo development leads to ...

Pesticides choke pathway for nature to produce nitrogen for crops

Jennifer E. Fox, NIH/NRSA postdoctoral fellow at the University of Oregon, has shown that many pesticides interfere with the ability of legumes to recruit soil bacteria needed to provide a natural fertilizer to crops. Credit:...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...audanti , from Massif de la Selle. Nearly all of the 162 land-breeding frog species on Caribbean islands, including the coqui frogs of Puerto Rico, originated from a single frog species that rafted on a sea voyage from S...

New bacterium discovered -- related to cause of trench fever

A close cousin of the bacterium that debilitated thousands of World War ...ith colleagues from other institutions, found that the new microbe is genetically similar to one spread by body lice in the trenches during World War I. Th...

Study shows big power of small RNAs, not just proteins, in halting cancer

...enable a critical tumor suppressor network, called the p53 pathway, to fight cancer growth. “At CSHL, we...ing simultaneously on several fronts to understand the p53 pathway because damage to this pathway is something that almost all cancers have in common,” sai...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...ss-like structures. Phase I trials under way at the Medical College of Georgia are comparing the two approaches in human ovarian tissue and eggs, or oocytes, as well as human-like cow ovarian tissu...

Millions of children denied drug that costs less than $3 a year

...at effective treatment is available for all. Of the 35 million people with epilepsy who live in develo... at all. As a result, they experience seizures and the psychological consequences of stigma and discrimination. Regrettably, most of these people, many ...

In mice, drug protects against diabetes and atherosclerosis

...led by senior author Gökhan Hotamisligil, chair of the Department of Genetics and Complex Diseases at the Harvard School of Public Health (HSPH). Lead author was Masato Furuhashi, research fellow in the dep...

Columbine flowers develop long nectar spurs in response to pollinators

In flowers called columbines, evolution of the length of nectar spurs--the long tubes leading to ...tar--happens in a way that allows flowers to match the tongue lengths of the pollinators that drink their nectar, biologists have found. The researchers w...

Longer treatment benefits sleep apnea patients

...uring sleep, according to a new study supported by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health. This is the first study to identify the nightly duration of CPAP use ...

Brain holds clues to bipolar disorder

Looking into the brain is yielding vital clues to understanding, di...er, according to findings being presented today at the Seventh International Conference on Bipolar Disorder. Two studies, featured in a press briefing held...

Ancient DNA traces the woolly mammoth's disappearance

...vidence has offered new clues to a very cold case: the disappearance of the last woolly mammoths, one of the most iconic of all Ice Age giants, according to a June 7th report p...

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