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Tag: "directs" at biology news

Studies to find better ways to preserve human eggs, ovarian tissue under way

...itro fertilization programs, including the one she directs at MCG Health System, are moving toward vitrification, which also seems to work faster, better and cheaper in embryos. They pursue the potential of egg preservation as well to really find out which is the best option: ovarian tissue or pure eggs....

How to steer a moving cell

...the compass to gain a better understanding of what directs cell migration or, in the case of cancer cells and inflammation, cause cells to migrate where they normally wouldn’t. "The ability to spatially organize specific groups of signaling proteins to the front or back of the cell is what drives cell po...

Columbia scientists determine 3-dimensional structure of cell's 'fuel gauge'

... of an energy-carrying molecule known as ATP, AMPK directs cells toward "anabolic" activities like storing the extra energy as fat. When ATP is low, AMPK turns off anabolic activities, and activates "catabolic" functions, like burning fat to make energy. AMPK provides an especially promising drug target ...

When your brain talks, your muscles don't always listen

...ight said. Knight and co-author Gary Kamen, who directs the Exercise Neuroscience Laboratory at the University of Massachusetts, recently published the results of a study on motor-unit firing rates in the Journal of Applied Physiology, and Knight is now beginning a new project focusing on motor-control me...

Renegade RNA -- Clues to cancer and normal growth

...n the renegade ribonucleic acid, and the code that directs its movement, will be published Jan. 5 in Science. MicroRNAs, already implicated in cancer and normal development, latch on to and gum up larger strands of RNA that carry instructions for making the proteins that do all the cell's work. They are, ...

Radiation therapy combo cures prostate cancer long-term

...treatments, where a radiation oncologist precisely directs high energy radiation beams to kill cancer cells. "This study is exciting because it shows that the combination of brachytherapy and external beam therapy are successful long-term at curing men of their prostate cancer," said John E. Sylvester, M...

Robotic therapy helps restore hand use after stroke

... the hand and couples with a computer program that directs patients though a physical therapy program. HOWARD users initiate hand motion, with the robot monitoring and assisting the activity in order to meet therapeutic goals. "The HOWARD therapy isn't passive; the patient has to jumpstart the program an...

New cell type identified in cancer development

...nal, or cue, from their immediate environment that directs them to become benign or malignant. Second, it seems clear that they can be detected and eliminated by a robust immune system when they are actively developing into cancer cells." Cancer stem cell theory is still in its infancy, but Gao feels thes...

New research shows that flu is a trigger of heart attacks

...housands of lives every year." Prof Madjid ?who directs a research lab dedicated to the effect of flu on the cardiovascular system ?pointed out that the implications of the research were even more important with a looming flu pandemic when a much higher percentage of the population could be expected to ca...

Largest genomic search finds genes that may contribute to autism

...orhood and have a plan to find it." Dawson, who directs the UW's Autism Center and is a professor of psychology, said the identification of neurexin 1 is important because glutamate is known to be involved in learning. By identifying this gene it begins to allow researchers "to go from gene to brain to ...

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

...olleagues across the Pacific," said Arzberger, who directs the five-year-old PRAGMA initiative. "We will be able to hit the ground running thanks to the shared expertise, interconnected cyberinfrastructure, grid-enabled software tools and student exchange programs that have emerged out of PRAGMA." Pacific...

Fruit fly gene research may shed light on human disease processes

...presence or absence of the human Y chromosome that directs sex development, human females still need to determine how many X chromosomes they have in each cell. They do this to ensure that similar amounts of the proteins encoded on the X chromosomes are produced in each sex. Failure to properly count X chr...

A first glimpse of the influenza replication machine

...his process because it copies the viral genome and directs the production of its proteins. Interfering with polymerase function would prevent the virus replicating, thereby reducing the spread of the virus and the severity of the infection. "For many years scientists have tried to understand the flu poly...

Creating new life forms that may help eradicate cancer affecting women

...infectious agent," explains Dr. Shabahi, "and then directs it to successfully attack cancer cells. The bacterium in effect then becomes a cancer-fighting 'Trojan horse,' with the enemy tucked inside." For breast cancer, Dr. Shababi's team fused Listeria with a tumor-associated protein, HER-2/Neu, to imm...

Tearing down the fungal cell wall

...sicicola's life cycle. The AbNPS2 gene most likely directs the synthesis of a molecule that plays an essentia...s a non-ribosomal peptide synthetase. This protein directs the synthesis of secondary metabolites known as non-ribosomal peptides. However, the functions of ma...

Controlling antibiotics and antibiotic resistance in hospitals

... N. Doebbeling, M.D., M.Sc., who led the study. He directs the IU Center for Health Services and Outcomes Res...f Institute and the IU School of Medicine. He also directs the VA Center for Implementing Evidence-Based Practice. The study looked at measures to prevent d...

Mayo discovers protein as potential tactic to prevent tumors

... "quality control check" during cell division also directs cell death for those cells damaged during duplication. This knowledge represents a potential "bulls eye" for targeting anti-tumor drugs. The findings appear in the current issue of Science. The researchers examined a protein called cyclin-dependent ...

Biologists probe the machinery of cellular protein factories

...it is now the accepted paradigm," said Noller, who directs the Center for Molecular Biology of RNA at UCSC. "Our latest results confirm that the ribosomal RNA is really the key to ribosome function. The proteins are also involved, but more peripherally," he said. To make a new protein, the genetic instruc...

Fighting like a girl or boy determined by gene in fruit flies

...urting ritual with other females. The same gene directs another sex-specific behavior ?fighting patterns, the new study shows. Female fighting, for example, largely involves head butts and some shoving. Males prefer lunges; they rear up on their back legs and snap their forelegs down hard ?sometimes naili...

Study suggests evolutionary link between diet, brain size in orangutans

...y and of Community and Family Medicine. Van Schaik directs the University of Zurich's Anthropological Institute & Museum, and he also is an adjunct professor of biological anthropology and anatomy at Duke, where he had worked for 15 years. "To our knowledge, this is the first such study to demonstrate ...

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