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Tag: "removes" at biology news

Enzyme shown to help protect genomic stability

... in concert with another enzyme called Sir2, which removes acetyl molecules from histones. Sir2 has also been associated with promoting genomic stability, and some studies have linked it intriguingly to the aging process. Some studies, for example, have suggested that low-calorie diets that extend life also ...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...sert a miniature cutting and vacuuming device that removes the gel in the middle of the eye and replaces it with saline. They then make a pinpoint opening in the retina through which they inject fluid to lift up a portion of the retina from the back of the eye, creating a small pocket in the "subretinal spac...

Ophthalmologists implant five patients with artificial silicon retina microchip

...sert a miniature cutting and vacuuming device that removes the gel in the middle of the eye and replaces it with saline. They then make a pinpoint opening in the retina through which they inject fluid to lift up a portion of the retina from the back of the eye, creating a small pocket in the "subretinal spac...

Artifical cornea lets woman blind 20 years see

...nea tissue sandwiched in between. The surgeon then removes most of the damaged cornea from the patient's eye so that the new prosthesis can be sewn into place using sutures to connect the donor tissue and keratoprosthesis to the patient's remaining corneal tissue. "Getting an artificial cornea is not an eas...

First technology to remove prions that cause vCJD from blood launched

...r System. It is the first and only technology that removes infectious prions that may be the causative agent ...tion The Leukotrap Affinity Prion Reduction Filter removes all types of prions in addition to leukocytes (white blood cells) from red blood cells. Prions can b...

Chromosome Deletion Predicts Aggressive Neuroblastoma

...ever, the loss of material at that site apparently removes the protective effect of a tumor suppressor gene, and thereby allows the tumor to grow. Patients in the study with the chromosome deletion had a three-year overall survival rate of 66 percent, compared to 83 percent for patients without the deletion....

Bobbing birds do it for a reason

...lt strongly suggests that visual fixation not only removes motion blur but also plays a critical role in permitting the detection, localization, and recognition of objects. Head-bobbing behavior, so characteristic of birds, permits the close and stable examination of objects in view during the immobile phase...

Future diabetes drugs may target new protein interaction

...t access to genes. It turns out that sirtuin1 also removes these decorations from PGC1, and then remains bound to PGC1 as it starts up the sugar-making process, the researchers found. "Because both proteins are required for the liver to make sugar, targeting sirtuin1 in a very specific way might help contro...

PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information

...t access to genes. It turns out that sirtuin1 also removes these decorations from PGC1, and then remains bound to PGC1 as it starts up the sugar-making process, the researchers found. "Because both proteins are required for the liver to make sugar, targeting sirtuin1 in a very specific way might help contro...

Computational verification of protein-protein interactions by orthologous co-expression

...t access to genes. It turns out that sirtuin1 also removes these decorations from PGC1, and then remains bound to PGC1 as it starts up the sugar-making process, the researchers found. "Because both proteins are required for the liver to make sugar, targeting sirtuin1 in a very specific way might help contro...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...t access to genes. It turns out that sirtuin1 also removes these decorations from PGC1, and then remains bound to PGC1 as it starts up the sugar-making process, the researchers found. "Because both proteins are required for the liver to make sugar, targeting sirtuin1 in a very specific way might help contro...

Natural Killers Could Lead to New Hepatitis Treatments

...urveillance in the liver. The liver detoxifies and removes waste products from the blood. Inside the liver, vascular passages, or “sinusoids,?are filled with a witches' brew of nutrients, toxins, proteins, lipids and other chemicals. Thus, immune guardians that patrol the liver must tolerate many foreign mol...

Scientists use manufacturing methods to reconstruct mastodon

...aving even a few specimens as complete as this one removes a lot of the guesswork that would otherwise be involved in studying a larger number of more incomplete specimens," said Fisher, who plans to continue studying the actual skeleton after the exhibit opens. "We have done some work on the tusks and teeth...

Researchers track down cause of a disfiguring bone disorder

...evidence that "the (Van Buchem) noncoding deletion removes a SOST-specific regulatory element," the team reported, indicating that the disease is caused by the absence of one or more distant enhancer elements in the deleted region that help direct the expression of the SOST gene in adult humans. In an effor...

Carnegie Mellon University research reveals how cells process large genes

...that a novel mechanism, called recursive splicing, removes long introns by steadily paring them down in a predictable fashion and joining the remaining exons. The findings are published this summer in Genetics. This process, which the investigators discovered in the fruit fly Drosophila, has been conserved o...

Reversal of role for a viral protein associated with the development of lymphoma

...that a novel mechanism, called recursive splicing, removes long introns by steadily paring them down in a predictable fashion and joining the remaining exons. The findings are published this summer in Genetics. This process, which the investigators discovered in the fruit fly Drosophila, has been conserved o...

Researchers uncover E. coli's defense mechanism

...the norVW genes. These genes encode an enzyme that removes the nitric oxide, allowing the bacteria to fend off the body's defenses. The discovery of this mechanism is just the first step in what Spiro hopes will be a line of research aimed at disrupting the mechanism by which the bacteria rids itself of the...

Hybrid grass may prove to be valuable fuel source

...canthus produces only as much carbon dioxide as it removes from the air as it grows, said Heaton, who is seeking a doctorate in crop sciences. That balance means there is no net effect on atmospheric carbon dioxide levels, which is not the case with fossil fuels, she said. Miscanthus also is a very efficien...

Sugar helps control cell division

... had higher than normal amounts of the enzyme that removes the sugar from proteins ended up with nuclei that didn't look right under a powerful microscope. Instead of being disseminated fairly uniformly through the entire nucleus, the genetic material of these cells was bunched up, giving the contents of the...

Old drug shows new promise for Huntington's Disease

...in body tissues, particularly copper and zinc, and removes them when it is excreted. Massa and other researchers believe that this chelation effect may interfere with production of the mutant huntingtin protein in some way. "But there are still a couple of explanations we need to rule out," he said. To that...

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