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Tag: "having" at biology news

Learning the language of DNA

...mplex than simple organisms such as worms, despite having a similar number of genes. If some genes have a broad range of start sites, individual species can differ subtly in the way they control these genes, meaning the genes can evolve faster, and organisms with these genes can become more complex. The...

Stomach receptor for H. pylori discovered

...vidence of an H. pylori infection--usually without having any symptoms. The vast majority of H. pylori in colonized hosts are free-living, but approximately 20% bind to gastric epithelial cells. This binding induces an immune response and alters the morphology and behavior of the epithelial cells due to in...

New strategy developed to combat West Nile Virus

...ng away larval habitats," Shaman said. "And simply having more mosquitoes doesn't necessarily mean that we'll experience a greater incidence of West Nile Virus. The mosquitoes themselves must first be infected with the virus. Researchers call the process through which more mosquitoes become infected 'amplif...

No-mow grass may be coming to your yard soon

... brassinosteroids or increase the yield of rice by having more brassinosteroids in seeds," Chory said. Another recent study by Makoto Matsuoka's group in Japan, she said, showed that limiting brassinosteroids in rice affected leaf angle and improved yield in densely planted fields. Vert and Chory's work h...

Origen publishes in Nature a robust and versatile method for creating transgenic chickens

...production of human sequence monoclonal antibodies having greatly enhanced cancer killing activity compared to antibodies produced via conventional methods. "While that earlier research was done with chimeric chickens, it demonstrated the enormous opportunities that transgenic chickens hold as a therapeuti...

Gene linked to rare disease activates fat breakdown

...s. Finally, the addition of normal CGI-58 in cells having the CDS mutation restores lipid breakdown and reverses the abnormal triglyceride accumulation typical of patients with the lipid storage disease. "These data establish an important biochemical function for CGI-58 in the lipolytic degradation of fat,...

Large-scale genomics project will hunt genes behind common childhood diseases

...e larger percentage who suffer the disease without having that variant." To accomplish the large-scale genotyping analysis, the Center for Applied Genomics at Children's Hospital will use the BeadLab, a highly automated laboratory that will be able to process 264 patient samples per day and simultaneously...

Mice learn tasks that may help treat human psychiatric disorders

...g a series of similar tasks over and over and then having to change their focus to a new problem, the mice c...ed in this study begin to solve the problem of not having a way of measuring these neurological mechanisms in mice," Garner said. "Previously we were not able...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...ovelty by single-gene duplications, simultaneously having a full genome's worth of raw material to elaborate new genetic function could drive sudden evolution. But because of the rapid, massive gene loss after a whole-genome duplication, these events are notoriously difficult to detect after millions of ye...

Researcher studies, treats military with 'silent disease'

...ous about their health, families, and careers; and having trouble sleeping. Once treatment began, however, they reported that their quality of life had improved. "We've been very surprised. When we asked the patients why (they felt better), they said, 'I'm doing something for my infection,'" Sjogren said. ...

Compound in dairy products targets diabetes

.... However, Vanden Heuvel cautions that while having a diet that is high in dairy and meat products, and thereby CLA, might have a health benefit, one must also be aware of other lipids present in these products, such as trans fatty acids. Instead, he suggests that in addition to a well-balanced diet, ...

Hopkins scientists show hallucinogen in mushrooms creates universal 'mystical' experience

...ghout. The researchers countered "expectancy" by having both monitors and subjects "blinded" to what substance would be given. For ethical reasons, subjects were told about hallucinogens' possible effects, butalso learned they could, instead, get other substances-weak or strong-that might change perceptio...

Dominant meerkats render rivals infertile

...inates. First, her own pups will benefit from not having to compete with additional pups born to a subordinate for the limited number of available caretakers. Second, because subordinate females actually kill other females' pups when pregnant themselves, reducing subordinate female pregnancy rates will red...

One therapeutic dose of radiation causes 30 percent spongy bone loss in mice

...ccompanies it. "You can't study this in people, so having a well-defined animal model is important," Bateman said. Study focuses on four types of radiation In the current study, the mice received a single 2 Gray (Gy) dose, which is comparable to the single dose of 1-2 Gy that human cancer patients rec...

Brain-computer link lets paralyzed patients convert thoughts into actions

...een paralyzed from the neck down since 2001. After having the BrainGate sensor implanted on the surface of his brain at Rhode Island Hospital in June 2004, he learned to control a computer cursor simply by thinking about moving it. During 57 sessions, from July 2004 to April 2005, at New England Sinai Ho...

Neural stem cell gene plays crucial role in eye development

...t normal development of the eye is contingent upon having the right amount of SOX2, expressed at the right time and place. "Too little SOX2 expression results in the neural stem cell pool to aberrantly differentiate into neurons during development," Pevny said. "This disrupts the normal maintenance of the s...

Some people would give life or limb not to be fat

...ay from their marriage, give up the possibility of having children, be depressed, or become alcoholic rather than be obese. Five percent and four percent, respectively, said they would rather lose a limb or be blind than be overweight. "We were surprised by the sheer number of people who reported they woul...

Stimulation of the semicircular canals can artificially control human walking and balance

...to lean in one direction or the other, but without having any effect on steering his walking. Known as bipedalism, our habitual upright posture is unique in the animal kingdom and has arisen through specific complementary adaptations of the body and brain. It has been believed that the key to human balanc...

Exxon Valdez oil found in tidal feeding grounds of ducks, sea otters

...ery plausible that exposure to Exxon Valdez oil is having a material impact on many shore-dwelling animals and is contributing to their slow recovery in some parts of Prince William Sound," Short says. "Sea otters, for instance, have yet to re-inhabit Herring Bay, the most oiled bay we studied, and the popu...

When it comes to gene transcription, random pauses aren’t quite so random, study finds

...ause more or less, but they don't seem to remember having paused." Why does RNAP make these fitful stops and starts? "No one really knows what all these ubiquitous pauses are doing nor what really causes pauses. They may be there to act as some kind of a governor to control the speed of transcription," Bl...

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