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Tag: "major" at biology news

Chemists create 'Superbowl' molecule; May lead to better health

...merous scientific journals and databases, convenes major research conferences and provides educational, science policy and career programs in chemistry. Its main offices are in Washington, D.C., and Columbus, Ohio. ...

New push for public health, AIDS spending at African Union summit

...low-cost drugs to African HIV sufferers received a major boost this month when the US Food and Drug Administration approved the first ARV cocktail, which could open the taps on the promised $US15 billion that President George W Bush promised two years ago for the fight against AIDS. ...

Man and mouse share genome structures

...metrix. They isolated the DNA regions with certain major methyl and acetyl tags, and used new microarray technology to identify the underlying genetic sequences associated with the tagged chromatin. Next, they teamed up with Michael Kamal, the co-first author of the paper, Eric Lander, and their Broad Inst...

Molecular biology fills gaps in knowledge of bat evolution

...nown to biologists as megabats - emerged from four major lineages of smaller and more widely dispersed, mos...ent incomplete, according to Springer. Bats play a major ecological role as plant pollinators and insect predators. For Springer, this latest research is si...

A new mechanism of regulating RNA degradation

...activity and the life span of the RNA itself. One major pathway for such post-transcriptional regulation i...c RNAs, but investigators now know that it plays a major role in regulating the life span of numerous RNAs, and thus controls gene activity. To better under...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

...activity and the life span of the RNA itself. One major pathway for such post-transcriptional regulation i...c RNAs, but investigators now know that it plays a major role in regulating the life span of numerous RNAs, and thus controls gene activity. To better under...

Spleen may be source of versatile stem cells

...ct production of Hox11."We know that if you have a major loss of blood, the spleen is turnedon to supplement the bone marrow in replenishing your blood supply. Wemay find that the spleen kicks in to help with many more biologicalemergencies. What has been considered a practically unnecessary organmay actua...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...n, according to the National Science Foundation, a major funder of this work. The NSF explains that subseafloor ecosystems may represent both the cradle of life on Earth and a model for the exploration and discovery of life on other planets. "We are highly conscious of the importance of microbes in the gr...

Source of molecular triggers in cutaneous T cell lymphoma identified

...system. Finding CTCL triggering factors has been a major goal of Richard L. Edelson, M.D., Director of the Yale Cancer Center, and professor and chair of dermatology at Yale, since he and his colleagues at the National Cancer Institute first identified CTCL as a separate category of lymphoma thirty years a...

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

...his avoids any 'sticking to thesurface' which is a major disadvantage of current methods that infusethe cells into the structure after it has been built."The problem is getting cells into the interior of these constructionsas they naturally stick to the sides of whatever they are beinginserted into. If the...

Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer

... skin cancer.Thus far it was not clear how the two major types of UV-induced DNAlesions ?cyclobutane pyrimidine dimers (CPDs) and (6-4)photoproducts(6-4PPs) ?contribute to the processes of cell death and cancerformation. Identifying the relative contributions of the two types ofdamage to tumor formation is...

W.M. Keck Foundation funds study of friendly microbes

...aced next to the Genome Sequencing Center. It is a major facet of the University's BioMed 21 initiative, which aims to translate genomic science into patient care. The CGS plays a catalytic role in helping to devise new ways to translate the genetic data obtained from genome sequencing projects to allow re...

Columbia research lifts major hurdle to gene therapy for cancer

...enter have discovered a way to overcome one of the major hurdles ingene therapy for cancer: its tendency to kill normal cells in theprocess of eradicating cancer cells.In a new study published in the Jan. 25 issue of the Proceedings of theNational Academy of Sciences (PNAS), the researchers demonstrated th...

Topical treatment shown to inhibit HIV and herpes simplex virus infection

...de of HIV transmission, and genital herpes plays a major role in the sexual spread of HIV. The researchers conducted a prospective, randomized, double blind, placebo-controlled study among 20 HIV-infected women to assess the antiviral activity of PRO 2000 in cervicovaginal lavage (CVL) fluid collected bef...

Growth in the sea comes down to a struggle for iron

Scientists know that injecting iron into some major regions of the oceans can stimulate the growth of ... have embarked on a series of experiments in three major areas of the world's oceans. "The three areas are the Southern Ocean around Antarctica, the equator...

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

...ontrol to minimize insulin resistance -- the other major factor involved in triggering type 2 diabetes. "In particular, someone who was a low-birth-weight baby can compound the risk of developing diabetes by becoming overweight," she added. "The stage is set in two ways: low insulin production coupled wit...

Fox Chase Cancer Center scientists identify immune-system mutation

... T-cell receptor toward either class I or class II major histocompatibility complex (MHC) molecules. Most helper T cells carry a surface protein called CD4, which is attracted to class II MHC. Killer cells carry the CD8 protein, attracted to class I MHC. However, the underlying molecular pathways that regu...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

...he parasite. "Intestinal infections are one of the major health problems in developing countries and the number of people who are infected with amoeba cysts is enormous," he says. Typically, those cysts are transmitted when people ingest contaminated food or water. The disease can cause liver damage but m...

Tiny particles could solve billion-dollar problem

...s but also tends to be more expensive. One of the major advantages of using palladium catalysts to break down TCE is that palladium converts TCE directly into non-toxic ethane. By contrast, breaking down TCE with more common catalysts, like iron, produces intermediate chemicals, like vinyl chloride, that ...

Scientists Replicate Hepatitis C Virus in Laboratory

... to the greatest number of people ?genotype 1, the major type of HCV of human infections worldwide and the ...ded RNA virus in the family Flaviviridae. HCV is a major cause of liver disease in the United States and the world. One in a series of hepatitis viruses, HCV...

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