Tag: "powerful" at biology news

Early Menarche Puts Young Girls In Peril

...American girls could not help but internalize this powerful imperative [for physical perfection] and, in the process, they developed their own, even more compelling, body projects," writes Brumberg. She shows why contemporary girls have become so worried about their shape, size and muscle tone and discusses "...

At-Risk Women Want Breast Cancer Gene Test--If 'Pros' Outweigh 'Cons'

... disadvantages. "Genetic testing provides powerful information and, as this study shows,a woman's desire to be tested hinges largely on her perception that there ismore to be gained than lost by having this knowledge," said Paul Jacobsen, PhD,lead author of the study. "These findings underscore the ...

Further Proof That An Altered Rb-2/p130 Gene Leads To Lung Cancer

...man retinoblastoma-related gene, Rb-2/p130 , a powerful tumor-suppressor, may lead to lung cancer. They had previously suggested that damage to the Rb gene from cigarette smoke, air pollution and other toxins may lead to lung cancer. Such damage prevented the gene from making a key protei...

Hormonal Changes At Puberty Can Mask High Cholesterol In Blood

...ren study found that sexual maturationhad the most powerful influence on cholesterol in boys and girls, having agreater effect than a low-fat diet. The study included 663 girls and boys, ages 8 to 10, all with high cholesterol.Half the children (and their parents) attended a series of educational programstha...

Stress Lowers Sperm Count By Overwhelming Cells That Make Testosterone

...strength of ten. "My theory now is that this more powerful enzyme emerges when the Leydig cellsmature. It may be encoded by a gene closely related to the 11ßHSD gene expressedin younger Leydig cells," Hardy explains. Perhaps because it has severalhallmarks of the known 11ßHSD-1, no scientist has sp...

Recombinant Protein Immunizes Mice, Promises New Strategy Against Infection And Cancer

...culosis bacterium, called hsp70, that could elicit powerful immuneresponses and could be used as an immune system booster. The special propertiesof hsp70 prompted the researchers to investigate whether soluble hsp70 proteinscould be fused with bacterial or viral proteins of interest to elicit thedesired type...

UF Researchers Investigate Phenomenon Of Seizure-Alert Dogs

... added. "A dog has a sense of smell much more powerful than humans," Uthman said. "You and I might not smell a change, but a dog could." In the study's second phase, the focus shifts to organizations that work with seizure-alert/seizure-response dogs. "Some of these places make more aggressive ...

MIT Biologists Identify Aging Mechanism

...e laboratory. Indeed, William Shakespeare, a manof powerful intuition and observation, would be pleased to learn how closelyHamlet's phrase denoting mortality -- the "mortal coil" -- portrays an actualmolecular drama. A drawing of ERCs in action shows that an aging yeast mothercell is full -- fatally full -- ...

Wake Forest University Study Takes Students In Flight With The Albatross

...ot interfere with an albatrosses' flight but still powerful enough to send a signal that couldbe picked by by satellite. From tracking the albatross in the Galapagos, Anderson said that the birds can fly the equivalent of a flight from New York to Miami -- or San Diego to Seattle -- and back on a feeding tri...

Columbia Biologists Match Odor Receptor To Odor; Research Uncovers How Sense Of Smell Works; First Aroma Scientists Detect Is That Of Meat

... an odor. Professor Firestein developed a powerful approach to understanding thecoding of smell. The idea is a simple one: if a large enough population ofolfactory neurons were forced to produce one particular receptor, then the odorthat activated that receptor would cause a much larger response th...

Hurdle In Ulcer Vaccine Development Cleared

...of DNA with that sequence toserve as a primer in a powerful technique called PCR (the polymerase chainreaction). This allowed them to recover the entire gene from the bacterium. Butinstead of finding one such gene, they found a complex family, which includedtwo closely related members. To determine wh...

Genetic Risk Factors For Anorexia Nervosa Sought

Modern society puts powerful pressure on women to control body weight,penalizing obesity and rewarding thinness in myriad ways. For this reason, someobservers say, women suffer from anorexia nervosa -- a disorder in which victimsstarve themselves, sometimes to death -- at rates ...

Experimental Trial Combines DNA Vaccine With Triple-Drug Therapy To Stop HIV

...ongoing infection? "Historically, the most powerful immune response results from a naturalinfection," notes MacGregor. "A case of chicken pox gives you better immunitythan the chicken pox vaccine, for example. So, it was counterintuitive to me inour earlier DNA vaccine trial with HIV-positive patients...

Gene Therapy Enables Transplantation Without Immunosuppressive Drugs

...y engraftedorgans are potentially significant. The powerful immunosuppressive drugs nowrequired to allow a life-saving transplanted organ to survive in a recipient'sbody without rejection do their work only at a substantial cost to the overallwell-being of the recipient. "Currently, all immunosuppress...

American Museum Of Natural History Researchers Announce Discovery Of Oldest Known Fossil Ants - 92-Million-Year-Old Fossils Found In New Jersey Amber

...ay. (Most of these ants today are known for their powerful stings.)The discovery of both primitive and more advanced fossil ants in92-million-year-old amber shows that the major lineages of ants arosebefore the great extinction at the end of the Cretaceous, 65 million yearsago. A reasonable estimate would p...

Fauci: New Findings Help Explain "Rebound" Of HIV In Patients Who Discontinue Triple-Drug Therapy

...nodes and related organs. However, the powerful effects of HAART nonetheless can reduce viral repl...would be unable to infect new cells because of the powerful antiviral effects of the drugs. Thus, HAART together with IL-2 would lead to a depletion...

New Heart-Attack Indicator Dramatically Improves Diagnostic Accuracy Of ER Doctors: TnT/Echocardiogram Combination Could Reduce Needless Admissions

...TnT levels together with echocardiogramswas a more powerful predictor of subsequent cardiac events in these patientsthan using either test alone," notes lead author Emile R. Mohler, III, MD,director of vascular medicine at Penn. The study results--published in theFebruary issue of the American Heart Journal--...

Microsurgery Made More Accurate With Virtual Measuring Tool

...In terms of specific applications, one potentially powerful use of this tool is for intraoperative measurement...the virtual pointer to real object features. Other powerful depth cues normally used during real object to real object alignment tasks, such as distant object o...

Low B Vitamin Levels Common In Many People Linked To Increased Heart Disease, Stroke Risk

...aving a vitamin B-6 deficiency proved to be a very powerful risk factor for heart disease and stroke," says Robinson. In an editorial commenting on the new research, Gilbert Omenn, M.D., Ph.D., of the University of Michigan, Ann Arbor, cautions that the results of the new study should be considered preliminar...

Conservation Biology Clearinghouse, Engineering Design Tutor

...ect, maintain and restore theenvironment, by using powerful technology to provide the highest professionalstandards of education, and by encouraging the involvement of the public and academiain a public forum. Begun in 1995 by Alan Thornhill, faculty in ecology and evolutionarybiology, while he was a graduate...

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