Tag: "very" at biology news

St. Jude study solves mystery of mammalian ears

...e is that researchers have the ability to ask some very basic questions about how the body works, and then use those answers to solve medical problems in the future.” The long-standing argument centers around outer hair cells, which are rod-shaped cells that respond to sound waves. Located in the fluid-...

Scratch no more: Gene for itch sensation discovered

...e receptor), which codes for a receptor found in a very small population of spinal cord nerve cells where ... morphine. For some people, chronic itching can be very disruptive, interfering with sleep or giving rise to scratching that leads to scarring. Effective tr...

One species, many genomes

...ain, which was sequenced in the year 2000. Using a very elaborate procedure, they examined every one of th... four percent of the reference genome either looks very different in the wild varieties, or cannot be found at all. Almost every tenth gene was so defective...

Identified main genetic variants involved in response to HIV

...escribed until now. Obtained information will be very useful in the long road to a more rational vaccine development. This and similar studies should push us toward more personalised medicine, where the most suitable drugs for each individual would be determined on the basis of their gene characteristic...

Cellular message movement captured on video

...D’s Jacobs School of Engineering. “But it’s really very complex and I’m not sure we’re covering much as yet. We certainly don’t know all the interactions among these molecules that bring the cell into action.” Examining living cells through a microscope, Chien and the paper’s co-author, associate proje...

Enzyme delivered in smaller package protects cells from radiation damage

...ells. "Because we now can deliver MnSOD in this very small vector, we will be able to get this radioprotective enzyme more efficiently into all of the cells of the body and give patients receiving total body radiation for systemic cancers better long-term outcomes. This also has implications for the pr...

Brain inflammation may be friend, not foe, for Alzheimer's patients

... to fight plaques.” The new findings hinge on a very special mouse that Shaftel spent three years creating with the guidance of his adviser, M. Kerry O’Banion, M.D., Ph.D., associate professor of Neurobiology and Anatomy. Shaftel genetically engineered a one-of-a-kind mouse that gives him pinpoint cont...

Old memory traces in brain may trigger chronic pain

...s aspirin and morphine derivatives, haven’t worked very well. A Northwestern University researcher has found a key source of chronic pain appears to be an old memory trace that essentially gets stuck in the prefrontal cortex, the site of emotion and learning. The brain seems to remember the injury as ...

Modeling the restless brain

... in the absence of an external stimulus, there are very important processes going on in the brain which af...del created by Sporns and Honey suggests that this very pattern of connectivity is crucial to generating and shaping brain activity in the resting and activ...

Simulations unravel outer membrane transport mechanism

...orshid, principal investigator on the study. “It’s very difficult to assess this experimentally because th...hat guide large conformational changes happen on a very short time scale: femtoseconds,” Tajkhorshid said. Each step relies on the completion of a previous ...

Snoring in children might be an allergic type disease

... snored more than three nights per week. This is a very high prevalence in five year old children and is partly due to all of the children having rhinitis which is often found in children who snore. Dr Nat Marshall, from Sydney’s Woolcock Institute of Medical Research said the study aimed to investiga...

A new plant-bacterial symbiotic mechanism promising for crop applications

... concern the leguminous plants of temperate zones, very little those of the tropics. The team from the IRD’s ‘Laboratoire des Symbioses Tropicales et Méditerranéennes’ and its partners (1), taking as model a symbiosis between a tropical aquatic legume, Aeschynomene, and Bradyrhizobium, bacteria of the...

Envisat captures first image of Sargassum from space

... seen from space before," said King. "It is really very exciting."...

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

...y by swimming because frogs dry easily and are not very tolerant of salt water. In addition to the study's discoveries about Caribbean and Central American frogs, the research also revealed and defined an unusually large and unpredicted group of species in South America. "The South American group may ...

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

...en eradicate cancers, but we’ve revealed something very surprising about what makes this pathway so powerful,” said Hannon. CSHL research published by Nature earlier this year, concluded that even in the latest stages of cancer, reactivation of a previously damaged p53 pathway caused cancer tumors to stop...

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

...grade per minute so it drops the temperature very, very slowly,” says Dr. Song. Slow cooling works wel...ide organelles. That is what hurts eggs, which are very delicate,” he says. “When you trigger ovulation with a hormone or naturally, you get the last se...

In mice, drug protects against diabetes and atherosclerosis

...or of Genetics and Complex Diseases. "This drug is very effective in treating diabetes and heart disease in mice at the same time, and we believe it may turn out to be protective against asthma and other metabolic disorders as well." The laboratory animals showed no harmful effects from the treatment,...

Columbine flowers develop long nectar spurs in response to pollinators

...tural selection might account for the evolution of very long nectar spurs in flowers, said Hodges. "In Dar...in which adaptation to specific pollinators occurs very rapidly, followed by periods of no further evolution until another pollinator shift occurs, accordin...

Ancient DNA traces the woolly mammoth's disappearance

...me ancient-DNA evidence has offered new clues to a very cold case: the disappearance of the last woolly ma...mmoth’s last gasp. “At a time when we should be very concerned about the potential extinction of many existing large mammals, studying those that occurre...

Brightening prospects of using fluorescent nanotubes in medical applications

...ss of their fluorescent neighbors. But it has been very difficult to separate the strongly fluorescent SWN...ese factors include: Nanotubes emit light in a very narrow range of wavelengths, or colors. This makes it easier to pick out their signal against backgr...

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