Tag: "physically" at biology news

Overweight Cats Risk Disease And Premature Death, Cornell Study Finds

...ts, from extremely thin to optimal to obese, after physically examining the cats' body condition under their fur and comparing the cats to a series of six standard silhouettes. Unlike the case with humans, there is no body-mass index for obesity in cats, Scarlett noted. Most cats refuse to sit still for the e...

Low Iron Levels Cause Weakness In Women Who Are Not Anemic

...n usually are unaware of their iron depletion, and physically active women and vegetarians are at particularly high risk for iron depletion, the researchers point out. "This suggests that millions of women are impaired -- working harder than they need to for the same amount of exercise or physical work," said J...

Early Menarche Puts Young Girls In Peril

...ary girls are in trouble . . . young women develop physically earlier than ever before, but within a society that does not protect or nurture them in ways that were once a hallmark of American life. . . . Contemporary girls seem to have more autonomy, but their freedom is laced with peril." Sexual liberalism ...

Scientists Invent Faster Gene Function Identification System

... binding to mRNA produced from a specific gene and physically cuttingthe message, and thereby preventing protein production. "The result suggests that a ribozyme gene knockdown strategy could be asuseful as the established gene knockout strategy to identify and elucidate genefunction, while being much m...

UNC-CH Researchers Discover Key Cancer Control Mechanism

...an genes, theUNC-CH researchers found the ARF gene physically binds to MDM2 and destroys it. "When DNA is damaged, ARF degrades MDM2 to allow P53 to accumulate,"Xiong said. "However, when ARF is deleted, which happens in about 40 percent ofhuman cancers, it can't stop the MDM2 from degrading P53. Then th...

Research Finds That Watching TV Helps Kids Put On Pounds

...e providers to encourage all adolescents to remain physically active. Thefact that American children are getting...p usidentify effective strategies to keep children physically active as they movethrough adolescence." He encourages all health care providers, teachers,community...

Human Bone Disorder Reproduced In Mice

... that the two cell types may link together, either physically orthrough signaling molecules, to alter normal bone metabolism. Bianco and Gehron Robey hope to use the animal model to develop novel, effective therapies for the bone lesions of McCune-Albright syndrome, currently a majortherapeutic challenge. They ...

Social Stress Shortens Lives Of Monkeys With AIDS

...the areas of insurance, jobs and housing, and even physically attacked. Many also experience the deaths of partners and close friends. "Our data provide strong evidence that such stresses can have an impact on the course of the disease itself." The new study appears in the April 14 issue of the journal Proceed...

High-Pressure Chambers Could Prevent Paralysis After Spinal Cord Injury

...pinal cord is bruised,but not in cases where it is physically severed. The National Spinal Cord Injury Statistical Center does not keepstatistics on what proportion of spinal cord injuries are limited to bruising,but James said "the vast majority" fall into this category. A number of very positi...

Increasing Frequency Of El Nino Takes Toll On Northern Hemisphere's Only Penguins

... get enough nutrition to sustain them through that physically taxingfeather-shedding process, which Boersma says could leave some of the birds tooweak to survive, let alone breed. During her latest trip, some of the 100penguins she observed were starting to molt, which she says is an encouragingsign the food su...

Social Stress Causes Dormant Herpes Virus To Resurface In Mice

...archers to study how a body physically interprets certain stressors. The researchers infected mice with HSV-1 and subjected the animals to two stressful situations. One situation involved restraining the animals for por...

Hopkins Study Shows High Prevalence Of Domestic Violence

...e sometime in their lives, and 14 percenthave been physically or sexually abused in the past year. Resul...ion indicated they have been either emotionally or physically abused byan intimate partner during their lifetime, and one in every seven women reportedbeing a vic...

Bacteria That Disable Sperm

...yproducing products that are toxic to sperm; or by physically interfering withthe lashing of sperm tails. If infertile men have asymptomatic infections, Molnar thinks they shouldbe given broad-spectrum antibiotics for three months to eliminate the bacteria,before beginning IVF. "We should first treat t...

Nutrition Therapy Helps Patients Emotionally, Research Shows

... (38 percent), feeling better physically (37 percent) and improved blood pressure (5 percent). Most of the patients (88 percent) said they felt thedietitian's advice suited their individual needs. Almost 83 percentsaid ...

Exercising Just Three Days May Provide Heart Attack Protection

... But Sullivan is doing more than just staying physically fit. He isgenerating in his heart a protein called Heat Shock Protein 72, or HSP72,which protects against injury in the event of a heart attack. According to a recent study by University of Florida researchers, lessthan a week's worth of walk...

UCSF/Gladstone Finding May Explain HIV'S Ability To Infect Cells Lacking The Key Target Of HIV: The CD4 Receptor

...a-cellular portion of CD4, the"ectodomain," may be physically juxtaposed with CCR5 on these CD4-negativecells, and that virus floating by may see this physical interaction as a singlereceptor complex. "It may be that HIV doesn't have any way of realizing that these receptors areactually on different cells," sa...

New Biochemical Technology Ready To Retrieve, Purify Heaviest Crude Oil

... harsh conditions of oil wells whilechemically and physically altering crude oil. The biocatalysts are based on bacterial strains that have been isolated andpatented by Brookhaven. The strains - called extremophiles because of theirability to thrive in extreme conditions - are capable of converting heavyhydro...

Fine Toothed Combs, Not Chemicals, Should Be Used To Treat Head Lice

...ed hair with a fine toothed comb every three days, physically removes lice, without the need for repeated chemical treatments, which do not prevent reinfection....

Magnetic Fluids More Complex Than Previously Thought

...trumentthat uses laser light to exert pressure and physically move microscopicobjects floating in water. Because the particles in MR fluids are difficult to manipulate in thisfashion, Furst and Gast use polyvinyl microspheres, which are aboutone-fiftieth the width of a human hair. These microspheres are commerc...

Protein studies reveal sophisticated control of nerve communication

...t the first, that we've seen an anchorprotein that physically attaches not only to signaling enzymes but also to theirreceptor," said Scott, whose laboratory is at the Vollum Institute of Portland'sOregon Health Sciences University. "That means the receptor has everything itneeds absolutely at the right place, ...

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