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Tag: "hand" at biology news

In mice, drug protects against diabetes and atherosclerosis

...se illnesses in mice. "To have this chemical in hand and to replicate the effects of genetic manipulation is a huge milestone and an incredible source of excitement," said Hotamisligil, Professor of Genetics and Complex Diseases. "This drug is very effective in treating diabetes and heart disease in mi...

DOE JGI sets 'gold standard' for metagenomic data analysis

...imal tools for analysis. "Having such a tool at hand for the first time now, the community can not only compare the methods, but can also ask the question, why is this method better, or why does this one fail. Over all, we hope that it will help to improve the process and lead to further development of...

Left-right wiring determined by neural communication in the embryonic worm

...but we're full of internal lop-sidedness. From the hand used to pick up a pencil or throw a baseball, to where language is generated in the brain, to the orientation of our internal organs, humans are a glut of asymmetries. Worms aren't so different: The roundworm Caenorhabditis elegans has nerves on its ...

Male-killing bacteria makes female butterflies more promiscuous

... becomes more sexually rampant. Males on the other hand show signs of fatigue and put less effort into mating. In some populations of tropical butterfly the entire mating system is determined by a group of bacteria known as Wolbachia, according to the study, published in the journal ‘Current Biology'....

How trees manage water in arid environments

...notice and it's in the laundry, you can wash it by hand and hang it outside. It will be dry in 15 minutes. Not in Indiana. In semi-arid environments such as the southwestern United States, humidity is so low that water is scarce to begin with and hard to hold onto when there is a rare cloudburst. Rain ...

Robotic therapy helps restore hand use after stroke

...a, Irvine study. Stroke patients with impaired hand use reported improved ability to grasp and release...y is one of the first attempts to specifically aid hand function. Cramer presented HOWARD study findings yesterday at the American Stroke Association's Inte...

Destructive enzyme shows a benevolent side

...to certain mRNA molecules and remains there like a hand grenade with its pin in place. These mRNAs carry the information for making highly potent proteins, proteins that cells must stop making suddenly. When that 'stop' command arrives, the pin is pulled and the enzyme destroys the mRNA, quickly haltin...

Failure to meet United Nations sanitation target could affect millions of the world's poorest

...dingly difficult to practice good hygiene, such as hand washing." In addition to health benefits, clean water and sanitation also have a positive effect on education and the economy, Davis added. "Having sanitation facilities in schools has a differential impact on girls' attendance at school," she sai...

Chemical switch triggers critical cell activities

...d to a third enzyme called E3, which then helps E2 hand NEDD8 off to the ultimate target molecule at the e...that the other NEDD8 then hops over from the right hand to E1's empty left hand. That leaves the right hand free to grab yet another NEDD8. By continually p...

Freeze! Scientists film proteins at work by freezing them at different states

...ss of filming an enzyme in action and on the other hand there are the results that contribute to the knowledge of how this enzyme works? explains Dominique Bourgeois, corresponding author for the paper. The enzyme filmed in action is called “superoxide reductase? its role is to eliminate a toxic molecu...

The origin of the brain lies in a worm

...their belly side. Other invertebrates on the other hand have their nerve cells distributed diffusely over their body. Yet, all these species descend from a common ancestor called Urbilateria. If this ancestor already possessed a nervous system, what it might have looked like and how it gave rise to the di...

Ladybugs may be cute, but watch out when they get near wine

...Kenya in 1972 by Dr. Leakey, who reassembled it by hand and dated it at nearly three million years of age, an estimate revised to 1.9 million years by scientists who later discovered problems with the dating. "Dr. Leakey produced a biased reconstruction based on erroneous preconceived expectations of...

Man's earliest direct ancestors looked more apelike than previously believed

...Kenya in 1972 by Dr. Leakey, who reassembled it by hand and dated it at nearly three million years of age, an estimate revised to 1.9 million years by scientists who later discovered problems with the dating. "Dr. Leakey produced a biased reconstruction based on erroneous preconceived expectations of...

A revolution in the monitoring of unborn babies

...mitted by wireless technology to the nearest PC or hand held computer. The device has now passed all EU regulatory safety standards and is currently undergoing clinical trials. Dr Barrie Hayes-Gill expects the device to go on sale in October this year. “To date we have successfully completed over 33 p...

Ape gestures offer clues to the evolution of human communication

...is used. "A chimpanzee may stretch out an open hand to another as a signal for support, whereas the same gesture toward a possessor of food signals a desire to share," said Pollick. "A scream, however, is a typical response for victims of intimidation, threat or attack. This is so for both bonobos and...

New fMRI technology making brain tumor surgery safer

...tor area is stimulated, for example, the patient’s hand will move. Electrical stimulation has had drawbacks, however. “Stimulating the brain with an electrode can cause a seizure,?Dr. McPherson said. “And to accurately identify language areas in some cases we had to keep the patient awake. We also we...

Salmonella survives better in stomach due to altered DNA

...e pathogenic characteristics of DT104 on the other hand are only active in the intestines where the infection takes place. Evolution of the pathogen The DNA of the pathogen says something about how it survives and is transmitted. When a pathogen reproduces, the DNA can change a bit and this can ...

Osteoarthritis may be sign of faster 'biological ageing'

...shorter they were. But among the 160 people with hand osteoarthritis, the telomere length was significan...s obesity, age, sex, and smoking. All those with hand osteoarthritis were over 50, and the amount of telomere shortening was equivalent to that accrued ov...

Household transmission of SARS: Lessons learned

...e index case (first case) after becoming ill, poor hand hygiene and poor use of respiratory protective measures. SARS presented a unique public health situation, in which urgent prevention and control measures neededto be taken, while at the same time the identity of the infectious agent was unknown. ...

BC catalyst discovery promises faster, cheaper drug production

...th high selectivity; ideally, none of the opposite hand should be around. This way, the unfavorable properties of one enantiomer are eliminated without diluting the desired enantiomer's benefits. What the Hoveyda-Snapper team discovered can be referred to as a "silylation catalyst" ?a molecule that attac...

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