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Tag: "body" at biology news

Implanting dopamine generators in brain cells obtains improvement in Parkinson's in monkeys

...planting cell fragments extracted from the carotid body in the striate area of the brain. The carotid body is a small structure located at the bifurcation of the carotid artery, at the level of the neck. Its...

Latent memory of cells comes to life

... the DNA. This happens in fact in all of us as our body develops: cells with identical genetic information adopt very different fates, forming tissues that have apparently very little in common with each other, such as skin, brain, or bones. Mechanisms at the origin of this so-called cellular differentiat...

Growing nerve cells in 3-D dramatically affects gene expression

...May issue of Tissue Engineering, adds to a growing body of research showing that culture techniques can si...al. If you want to better understand how the human body behaves or how new drugs might fight disease, 3-D may be a better bet." For more than 100 years, ...

Cornell lab confirms deadly fish virus spreading to new species

...lations require that bait fish be used in the same body of water from which they were collected unless they have been tested. In Wisconsin, new emergency rules prohibit anglers and boaters from moving live fish and require them to drain their boats and live wells before leaving Wisconsin’s Great Lakes wat...

Danish researches solve virus puzzle

...and bird flu able to make the cells within a human body work for the purpose of the virus? Researchers at the University of Copenhagen shed new light on this question. The research is a collaboration between molecular biologists and physicists. ”The molecular biologists have knowledge of how the cell fun...

Individuals and populations differ in gene activity levels, not just genes

...he level at which those genes are activated in the body differs from one person to another, scientists have learned. And though some of those differences in gene activity are seen between different populations ?Asians versus Europeans, for instance ?more of those variations are due to individual-level fac...

UCLA study uncovers clues for why Graves' disease attacks the eyes

...tanding of how the autoimmune disorder damages the body and offer a new target for treating the disfigurin...ing a cascade of autoimmune problems that spur the body to attack its own tissue. "We think that the extra receptors allow the new antibody and IGF-1 to ...

It's never too late to get it back! Aging interrupted

... prevent this damage, but instead to stimulate the body to eliminate damaged cells that may become cancero...rons and heart cells. Low calorie diets drive the body to replace and repair damaged cells. This process usually slows down as we age, but low calorie diet...

Leeches ferry infection among newts

...ection is more likely to appear on commonly bitten body parts, suggested that leeches were the most likely vehicle transferring the disease. Further work showed that new infections generally begin at sites recently bitten by leeches, which leave behind a characteristic patch of blood under the skin. ...

Studies force new view on biology of flavonoids

...lth, but for reasons that are quite different ?the body sees them as foreign compounds, researchers say, a... and director of the Linus Pauling Institute. "The body sees them as foreign compounds and modifies them for rapid excretion in the urine and bile." Flav...

Male owls pitch their hoots to advertise body weight to competitors

...ed that the pitch of the vocalization reflects the body weight of the male: the heavier the male, the lowe... mimicked the hoots given by males from a range of body weights. They then played back these recordings to males with established territories, and observed ...

Tundra disappearing at rapid rate

...iversity of Alberta study that adds to the growing body of evidence on the effects of climate change. The boundary, or treeline, between forest and tundra ecosystems is a prominent landscape feature in both Arctic and mountain environments. As global temperatures continue to increase, the treeline is ex...

BMI not accurate indicator of body fat

...id not accurately reflect his or her percentage of body fat. The research is published in the March iss...athletes, is that BMI does not distinguish between body fat and muscle mass, said Ode. "A previous study of NFL football players found that a large perce...

Out-of-body experiences may be caused by arousal system disturbances in brain

...hey could sense they were really outside their own body watching themselves. In previous studies of more t...ave you had the sense that you are outside of your body and watching yourself?" A similar question was posed to survey out-of-body experiences during near d...

Blood sugar's manufacture limited by building blocks' supply

...lood sugar glucose—a primary energy source for the body and the sole source for the brain—after a period o...om food dries up, Gray explained. In response, the body first breaks down liver glycogen, the principal storage form of glucose. However, the body "goes thr...

Using nanomagnets to enhance medical imaging

...nts are used to highlight different tissues in the body or to help distinguish between healthy and disease...e an issue, because iron is naturally found in the body and other studies have found that these materials are non-toxic at the concentrations used in MRI. ...

Red flag for repetitive stress injuries identified for first time in humans

...t biomarkers (different kinds of chemicals) as the body begins to become injured by repetitive motions. These biomarkers warn of an underlying problem. "While not a diagnostic test, because the biomarkers could also indicate another type of injury, they do provide a red flag where before there was none...

In obesity, brain becomes 'unaware' of fat

...ings in the mice. “The brain is not aware that the body is obese.? If the same is true in humans, he add..., according to the researchers. In most adults, body weight is relatively constant despite large variations in daily food intake and energy expenditure, ...

Gene found for rare disorder may reveal new pathway in mental retardation

... together, long eyelashes, thin lips and excessive body hair. "In many of these patients, an experienced clinician might recognize their more subtle facial features as suggestive of CdLS, but for the most part, they would only come to clinical attention for having mild to moderate mental retardation,"...

Researchers identify gene involved in dog size

...ory, dogs today exhibit an extremely wide range of body types and behaviors. In fact, dogs exhibit the greatest diversity in body size of any mammalian species. In their study, researchers explored the genetic basis for size va...

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