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Tag: "number" at biology news

Genomic Analysis Uncovers New Targets for HIV Vaccine

...the senior author of the paper. "As we expand the number of patients in future studies conducted by CHAVI researchers, we aim to discover even more polymorphisms that could provide additional clues how some patients are better able to control the virus than others," Goldstein. "This should ultimately lead ...

FDA sees nanotech challenges in every product category it regulates

...roject.org/consumerproducts ),” said Rejeski. “The number of listed products has more than doubled in a year. It does not include nanotech consumer products which companies do not identify as such, or the hundreds of nano raw materials, intermediate components, and industrial equipment items currently used ...

One species, many genomes

...humans or corn—even though it has about the same number of genes. In contrast to these other genomes, there are few repeats or seemingly irrelevant filler sequences. "That even in a minimal genome every tenth gene is dispensable, has been a great surprise," admits Weigel. Detailed analyses showed that g...

Identified main genetic variants involved in response to HIV

...etermination of immune response capacity against a number of infectious diseases, including AIDS. These variations are located in the short arm of chromosome 6 in genes controlling HLA-B and HLA-C molecular systems, responsible for the activation of the immune system so that it is able to locate and destroy...

Common cancer gene sends death order to tiny killer

...hat p53 activates microRNAs like miR-34a because a number of studies have demonstrated that these tiny RNA molecules are frequently abnormal in cancer cells. "P53 is one of the most commonly mutated genes in human cancers," says Mendell. "And there is now a great deal of evidence that microRNAs themselve...

Research identifies protein that signals flowering in squash plants

...stance (i.e. florigen) that does. Recent work in a number of laboratories has focused on a role for FT prote...e University of California, Davis, together with a number of coauthors, provide strong evidence that FT protein acts as a florigenic signal in cucurbit plant ...

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

... vaccine has at times been promising, reducing the number of plaques in the brains of animals and a few people with the disease, but it’s also been fraught with difficulty, producing side effects such as encephalitis or severe brain inflammation in people with Alzheimer’s. “The potential to treat Alzheim...

Modeling the restless brain

...s structured -- how, for example the hundreds (the number is unknown) of regions in the human brain are connected. The computer model created by Sporns and Honey suggests that this very pattern of connectivity is crucial to generating and shaping brain activity in the resting and active brain. Empirical...

New study reports hotel guests at risk from carbon monoxide poisoning

...at the University of Utah School of Medicine, “The number of reported incidents of poisoning per year has not decreased over this 15-year interval…While the risk of CO poisoning from a one-night stay to an individual guest is small, the accumulated lifetime risk to individuals who travel frequently would be...

CSIRO scientists join fight to save 'Tassie devil'

... tumours originate. “We will be working in a number of areas including establishing whether a virus or other infectious agents are associated with the tumours,” AAHL’s Dr Alex Hyatt said. “If successful, the establishment of pre-clinical tests will allow researchers to remove known infected devils, in...

A new plant-bacterial symbiotic mechanism promising for crop applications

...ria, but the mechanisms are known for only a small number of these interactions. The demonstration of altern...e to increase agricultural production of a greater number of important plants, notably in tropical countries, while cutting down the use of fertilizers....

Research team identifies new Alzheimer's gene

...order afflicts an estimated 5 million Americans, a number expected to triple by 2050. “We have entered a...ay’s technologies permit us to survey a sufficient number of letters throughout the human genome to provide a clearer picture of how life works and ultimately...

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

...k methods. "Molecular clocks work by counting the number of DNA-sequence mutations separating two species and then dividing that number by the rate of change, which is established with the help of fossils and geologic information," expl...

Brightening prospects of using fluorescent nanotubes in medical applications

...highly fluorescent nanotubes. “Nanotubes have a number of characteristics that make them particularly sui...uorescence is quantum efficiency: the ratio of the number of photons of light that a device emits to the number of photons it absorbs in the process. The VINS...

Research shows cord blood comparable to matched bone marrow

...oviding the degree of mismatch was limited and the number of cord blood cells available was sufficient. Fur...te than matched bone marrow recipients, though the number of matched cord blood transplants was small. The research appears in the June 9, 2007, issue of ...

Alzheimer's disease to quadruple worldwide by 2050

...he world’s Alzheimer’s cases currently reside. The number of Alzheimer’s cases is expected to grow in Asia from 12.65 million in 2006 to 62.85 million in 2050; at that time, 59 percent of the world’s Alzheimer’s cases will live in Asia. To forecast the worldwide prevalence of Alzheimer’s disease, the re...

Breakthrough developments in rheumatoid arthritis reported

...ers a two-fold risk for rheumatoid arthritis and a number of other autoimmune diseases. The Feinstein now holds the largest collection from rheumatoid arthritis patients in the world. Following the cellular pathway, it has been shown that PTPN22 influences the “trigger point” for activation of T-cells,...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...related specialties over the coming years. “The number of people aged 60 and over is set to rise by more than a half by 2030 and 80 per cent of all skin cancers occur in this age group” says Dr Dolan. “It is important that we plan ahead so that we are able to care for patients with skin cancer without...

Researchers examine carbon capture and storage to combat global warming

...lobal policies to address these issues. That's the number one critical thing.'' With the proper development, Benson believes that carbon sequestration could be ripe for industry in the next 20 years. 'A family of solutions' Critics of carbon sequestration argue that the technology will divert att...

Physicist cracks women's random but always lucky choice of X chromosome

... This will help understand the problems of a small number of women who unusually don’t have a completely random distribution of X chromosomes but the explanation may have much wider implications as at least 10% of our genes may behave in similar ways as mechanism that "chooses" between X chromosomes. Exampl...

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