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Tag: "created" at biology news

Jefferson scientists identify gene mutation potentially involved in breast cancer initiation

...lly after estrogen treatment. "In essence, we have created a preclinical model in which to study the role of estrogen and caveolin deficiency in breast cancer development," he says. "It's a new signaling pathway for understanding the pathogenesis of human breast cancer with caveolin gene inactivation as the ...

Inheriting a tendency to brain infection

...Scripps Research Institute in La Jolla, California created a mutant mouse that did not respond to certain molecules that normally trigger cells to produce type I interferon. The mouse turned out to be vulnerable to a range of infections, but its susceptibility to herpes simplex had not been tested. "Neverthe...

Ohio University researchers discover evolutionary oddity in flamingos

... Zoo in Florida. A 3-D view of the bird's head was created using a new computed tomography (CT) scanning technique developed by the Ohio University team that highlights blood vessel anatomy. The researchers noticed large oval masses of erectile tissue located on the floor of the mouth on either side of the t...

Gut reaction: Researchers define the colon's genome

...ons for a year prior to the study. The researchers created DNA libraries based on the samples, generating a total of 65,059 and 74,462 sequence reads, respectively, from the two subjects. They found evidence for several hundred bacterial phylotypes, most falling into two divisions of bacteria known as Firmic...

MRSA vaccine shows promise in mouse study

...ice, researchers at the University of Chicago have created a vaccine that significantly protects immunized animals from multiple disease-causing, drug-resistant strains of Staphylococcus aureus, the most common cause of hospital-acquired infections and a rapidly spreading source of community-associated illne...

Amgen introduces comprehensive financial assistance programs for cancer patients

...ent less than the other antibody on the market and created the Vectibix Cap, which is the first of its kind for colorectal cancer patients." The AOA program will be available for U.S. cancer patients and will launch in October. AOA will expand and consolidate the company's existing financial assistance pr...

Results with newer bladeless LASIK equivalent to standard microkeratome LASIK

...LASIK with a mechanical microkeratome, the flap is created by a blade; in bladeless LASIK, the newer type, the flap is created by a femtosecond laser. "At six months after surgery, there are no differences between the eyes th...

Light-sensitive photoswitches could restore sight to those with macular degeneration

A research center newly created by the University of California, Berkeley, and Law...t of different colors. Kramer, Trauner and Isacoff created a channel called SPARK, for Synthetic Photoisomerizable Azobenzene-Regulated K (potassium) channel, ...

Electric fish in Africa could be example of evolution in action

...opes search for shapes and patterns of electricity created by fish in the water. They know from their previous research that the various groups of local electric fish have different DNA, different communication patterns and won't mate with each other. However, they now have found a case where two types of ...

Researchers report technique for freezing and preserving genetically enhanced pig embryos

...in freezing and preserving swine embryos that were created by in vitro techniques and that carried modified genetic material. After thawing and transfer to a surrogate mother, some of the embryos went on to produce live piglets with new genetic traits. In a paper posted today (May 3, 2006) on the Web site o...

Tests may help answer questions about GMOs and allergies

...idate the test. Genetically engineered crops are created by inserting a protein from a different organism into the original crop's genome. This is usually done to create a plant that is more resistant to insects or diseases. The Food and Agriculture Organization within the World Health Organization has a ...

Gene therapy prevents the onset of diabetic symptoms in mice

...s the soil more acidic, unfavorable conditions are created for sugar maples. In acidic soils, sugar maples produce fewer seedlings that survive and mature, and more adult trees die, the researchers found. They drew these conclusions after adding nutrients to soil in a test plot and reproducing the favorable ...

Acid rain causing decline in sugar maples, say researchers

...s the soil more acidic, unfavorable conditions are created for sugar maples. In acidic soils, sugar maples produce fewer seedlings that survive and mature, and more adult trees die, the researchers found. They drew these conclusions after adding nutrients to soil in a test plot and reproducing the favorable ...

Beaver dams create healthy downstream ecosystems

...tems downstream. Researchers have found that ponds created by beaver dams raised downstream groundwater levels in the Colorado River valley, keeping soil water levels high and providing moisture to plants in the otherwise dry valley bottom. The results will be published 8 June in Water Resources Research, a ...

Fire ants: Their true story told by the scientist who loves them

...inated." "The notoriety of pesthood has certainly created a large fire ant folklore and scores of amusing fa..., as many believe, but rather the ecological havoc created by disturbed habitats ?fire ants thrive in them, natives don't. Consequently, the USDA has wasted mi...

A new kind of mutation could explain numerous phenotypic variations in various species

...d thereby cause a specific phenotype. The mutation created the appearance of an "illegitimate" microRNA (miRNA) recognition site in a gene that did not have it in its normal form. In this study, the gene concerned is the myostatin. This gene is expressed in the skeletal muscle and the function of the derive...

Bacteria have their own immune system protecting against outside DNA

...eins, such as insulin or human growth hormone, are created when a piece of human DNA corresponding to that protein is introduced into bacteria. The bacteria then reproduce many times over, creating more of the protein each time they reproduce. The proteins are purified out from the bacteria, leaving behind o...

AIDS vaccine research offers new insights on survival

...e journal Science. "Over the last decade, we have created AIDS vaccines that generate T-cell populations that can combat HIV," explains lead author Norman Letvin, M.D., chief of the Division of Viral Pathogenesis at BIDMC, professor of Medicine at Harvard Medical School, and investigator at the NIAID VRC. "...

No cell walls, no new cancer cells

...tial strategy for cancer control. "New cells are created by the duplication of existing cells through a highly-organized process known as the cell cycle," explains lead author, Dr. Maite Bengoechea Alonso. "Last year we discovered that a protein called SREBP1 that regulates the synthesis of lipids needed f...

Brain's 'gambling circuitry' identified

...ues at the California Institute of Technology have created a simple gambling task that, when performed by humans undergoing functional magnetic resonance imaging (fMRI) of their brains, distinguishes the "gambling" structures in the brain. Importantly, their findings tease apart the gambling function of thes...

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