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Tag: "damage" at biology news

Insects develop resistance to engineered crops

...n corn borer, which causes more than $1 billion in damage annually in the United States. In greenhouses at the New York State Agriculture Experiment Station in Geneva, N.Y., the researchers used three types of GM broccoli plants: two types of plants each expressed a different Bt toxin, and a third -- known...

Attacks of King George III's madness linked to key metabolism molecule

...ating system" of brown fat cells that help prevent damage from cold in certain animals. With their intimate knowledge of PGC-1 alpha and its varied roles in energy metabolism, the Dana-Farber researchers wondered if it might be involved in porphyria, since PGC-1 alpha is a regulator of heme manufacture in...

Sandia completes depleted uranium study

... risks include the possibility of temporary kidney damage and about a 1 percent chance of fatal cancer. Several earlier studies were carried out by the U.S. Department of Defense, by University Professors Fetter (University of Maryland) and von Hippel (Princeton), and by an Army sponsored team from Pacific...

Pinpointing the cause of a neurodegenerative disorder

...sorder spinocerebellar ataxia type 1 (SCA1) suffer damage to cerebellar Purkinje cells caused by a toxic buildup of the protein Ataxin-1. Researchers knew that SCA1, Huntington's disease and other related disorders arise because of a "genetic stutter," in which a mutation causes a particular gene sequence t...

New type of rejection blocker protects kidneys after transplant

... Vincenti said. Since standard immunosuppressants damage the kidneys, the new class of drugs also promises to reduce the number of patients who need a re-transplant. "This is one of the exciting results of this study, considering that we have a critical shortage of organs for transplant," Vincenti said. K...

Pinpointing a culprit molecule in Alzheimer's disease

... wrote the researchers, is whether Ab peptide does damage inside brain cells or outside--"intracellularly." Transgenic mice produced by other researchers have not settled this question, because the peptide was not efficiently secreted by the cells in those mice. However, wrote McGowan and colleagues, "The [...

Most common lung cancers may begin in newly discovered cells

...have found evidence of cells that are resistant to damage and are involved in repair and maintenance of tiss...s for stem cells. In response to two types of lung damage that killed the more specialized cells, BASCs proliferated and appeared to give rise to the Clara or...

Endocannabinoids ?the brain's cannabis ?demonstrate novel modes of action to stress

...uce sustained changes in neuronal activity without damage to neuronal homeostasis. "Our next step is to investigate cannabinoids' effects in various stress conditions," Soya said. "Endocannabinoids may have possible involvement in stress-induced responses such as the changes of autonomic, endocrine and imm...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...e lingered close to their thin bark long enough to damage the delicate cambium beneath, permanently cutting ...ing burned forest by satellite, and to measure the damage caused by the fires. Wherever possible, our burns are also scheduled during satellite overpasses, to...

Novel mechanism for DNA replication discovered

...te smoke. Many of these carcinogens preferentially damage DNA at guanine - one of the four bases in DNA - blocking, in some cases, the ability of the guanine to partner with cytosine, which can lead to mistakes during replication. Aneel Aggarwal, PhD, and Deepak Nair, PhD, of the Department of Physiology a...

Investigating 'brain shrinkage' in alcoholics

... or retraction of neuronal dendrites; however, the damage appears to be at least partially reversible with a...l factors interact in a complex way to cause brain damage in those individuals who abuse or are dependent on alcohol. "The exact ways in which alcohol damage...

Gene therapy to lower blood pressure just enough

...eason it has promise in reducing some of the organ damage that occurs as a result of high blood pressure. One question that remains is whether the body will accept repeated injections of the viral vector or whether its immune system eventually react against it, said O'Malley. ...

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

...facturing and pharmaceutical industries can repair damage to cardiac muscle cell membranes and prevent heart...lant that protected hearts in dystrophic mice from damage is called poloxamer 188. According to Joseph M. Metzger, Ph.D., the U-M scientist who directed the r...

New Lab Research May Help Those Deafened By Immune System Attack

...le in hearing loss in animal models, and show that damage to the inner ear caused by antibodies to IESCA can destroy hearing. The KHRI-3 antibody creates a staining pattern that resembles a line of tiny wine glasses when it binds to IESCA in the organs of Corti of guinea pigs. The U-M has patent applicatio...

Beauty queens urge girls not to sacrifice their bones

...women to realize that modern ideas of "beauty" can damage their bones and lead to osteoporosis later in life. The women, from Australia, Austria, Panama, Thailand, Turkey and Venezuela, were speaking at "IOF Beauties and the Bones", an event organized by International Osteoporosis Foundation - IOF. Speaki...

Elderly mice yield clues to the process of growing old

...ing in aging is that as (genetic) mutations or DNA damage accumulates, critical cells die," says Prolla. "These experiments favor a major role for programmed cell death in aging." If true, the new insights may one day lead to opportunities to stave off old age through drugs that could prevent the gathering...

MERIS monitoring tracks planetary photosynthesis levels

...over, identifying areas under stress and assessing damage from drought or fires. An algorithm developed by the European Commission's Joint Research Centre (EC-JRC) in Ispra, Italy is the basis for global monthly photosynthesis maps derived from MERIS imagery. Their production represents a demanding data-pr...

Why do aneurysms form? New studies suggest leading role for white blood cells

... injury," Upchurch explains. "Something happens to damage elastin fibers in the blood vessel wall and, for some reason, the immune system's normal healing response doesn't work. Something eats away at smooth muscle cells in the wall of the aorta until it starts to fall apart." Researchers have found that A...

Clear rules needed to govern deep sea bioprospecting: UNU

... about the potential for severe, perhaps permanent damage to these unique and sensitive ecosystems, which in...eamounts. "While it is impossible to quantify the damage caused by such research on the deep seabed environment, threats include destruction of habitats, uns...

A Father’s Day Gift: Free DNA Paternity Testing

... about the potential for severe, perhaps permanent damage to these unique and sensitive ecosystems, which in...eamounts. "While it is impossible to quantify the damage caused by such research on the deep seabed environment, threats include destruction of habitats, uns...

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