Tag: "protect" at biology news

The telomere crisis: A crucial stage in breast cancer

...roteins to form structures called telomeres, which protect the chromosome ends." Eventually the DNA ends erode so much they can no longer protect the chromosomes. When this happens the chromosomes become unstable, and damage-control mechanisms ki...

Scientists identify compounds that mimic calorie restriction

...e and cancer. Calorie restriction is also known to protect animals from chemical exposure, and the investigators found that the protection afforded by calorie restriction in normal mice was lost in PPARalpha-mutant mice. "PPARalpha may be one of a handful of receptors that play important roles in mediating t...

Viral proteins may prevent bacterial infections

...hat live in the nasal passages and throat and help protect against other infections. The strength and specificity of these enzymes also makes them good candidates for treating infections as well. As they are larger molecules than antibiotics, Fischetti is unsure whether they can reach everywhere in the bod...

Dispute over life in Antarctic lake

...exists down there," he says. Besides, microbes can protect themselves against the hyper-oxygenation by producing antioxidants. "We should look for bio-signatures of microbes that can produce these," says Priscu. He believes the bottom of Lake Vostok, like that of many lakes, could be anaerobic and so provide...

Goals unlikely to protect Gulf of Mexico shrimp industry

...d zone" in the Gulf of Mexico may not be enough to protect the region's half billion dollar a year shrimp industry. Researchers from U-M, Louisiana State University, and Limnotech Inc, an Ann Arbor-based firm, used three different models to analyze oxygen depletion and to answer two key questions: Is the ex...

Babies with DiGeorge syndrome saved by immune supression, thymus transplant

...n of T cells -- specialized immune cells that help protect the body against viruses, bacteria and other pathogens. The thymus teaches T cells to fight infection while not attacking the infant's own tissues. Duke is the only center to offer thymus transplantation as a cure for the immune defect. Without this ...

8 environmental stewards win $900,000 in biodiversity awards

...under unfavorable economic and other conditions to protect endangered bird species, especially in Ethiopia. A...ged Flufftail. Wondafrash has worked to create and protect the wetland breeding habitats of the flufftail, which is believed to number only 750 globally. He ha...

JCI table of contents, 2 August, 2004

...immune response and the immune system's ability to protect against atherosclerosis. TITLE: IL-5 links adaptive and natural immunity specific for epitopes of oxidized LDL and protects from atherosclerosis AUTHOR CONTACTS: Christoph J. Binder or Joseph L. Witztum University of California, San Diego, 9500 Gilm...

'Smart gene therapy' protects against damage from heart attack

... the Edna Mandel Foundation. "While drugs that can protect heart muscle are available, most patients barely m...gene -- heme-oxygenase 1 -- that has been shown to protect cells. They then inserted the gene construct into a harmless virus known as adeno-associated virus, ...

Wheelchairs biomechanics, prosthetic development

Adaptive propulsion strategies protect some manual wheelchair users from injury, pg 385Th...main independent, and some of these strategies may protect them from the development of secondary upper-limb pathologies. Athletics has no impact on should p...

Study: Mothers turn fearless when peptide level drops

...nse that mothers would lay down their own lives to protect their offspring, especially if it means the parents' genes will be passed down to the next generation, says Gammie. But he adds that despite all the observations and the theories explaining why mothers display this behavior - commonly known as matern...

New England forests at greater risk from air pollution

...itoring program, is part of preventive measures to protect our forests and other natural areas from degradation due to environmental change. "We know that it can take 30 years before cigarettes impact the body," she says. "It could take just as long for a moderate level of air pollution to show its effects ...

Save the rainforest - eat a tree

...s were built around half the transplanted trees to protect them from insects. Other transplanted trees were left unprotected. Trees that normally grow on red clay soil thrived when transplanted onto white sand soil but only if protected from hungry insects, which included grasshoppers, beetles, caterpil...

AGU journal highlights - 29 July 2004

...ts for ocean studies The sound limitations used to protect fish and marine wildlife from underwaterseismic testing may need to be revised after a new study found that the noise islouder in shallow waters than originally thought. Tolstoy et al. report that the soundpressure from compressed-air pulses used in ...

Epilepsy: Signals 'brake' in brain impaired

...Heinz Beck. 'However, the attempt could be made to protect the Kv4.2 channels from ERK attack, or reverse the chemical changes in the channels.'...

Newly designed nanoparticle quantum dots simultaneously target and image prostate tumors in mice

...toxic, and this polymer acts like a plastic bag to protect the quantum dots from degradation and leakage." "This is a new class of quantum dot conjugates designed specifically for complex in vivo applications," said Dr. Nie. "They are stable over a broad range of pH and salt conditions and maintain their st...

Growing new breed of vaccine-producing plants to fight human diseases worldwide

... include combination vaccines including those that protect against diseases that occur predominantly in developing countries, he added. Over the last decade, the team working with Arntzen has shown that a set of genes from human pathogens can be introduced into plant cells, and intact plants reg...

Bone, enamel, dentine, milk & saliva share gene family

...rp teeth for eating and protection, hard shells to protect developing young and milk to nurture them until they could use their teeth to catch and consume dinner. "Now we are going to look to see if these genes are expressed in embryos when and where they are supposed to be expressed," says Weiss....

Good bacteria trigger proteins to protect the gut

...nd these molecules alone were enough to completely protect the mice from damage by DSS. "These bacteri..."These antibiotics are intended quite correctly to protect patients against opportunistic infections. However, our work shows that such antibiotics can have th...

New framework for biodiversity conservation

...vation agencies to move quickly and effectively to protect habitat," says Possingham. "Redirecting funds could help managers offer financial or other incentives to land owners, helping turn years of planning into actual protection for species that are running out of time." The authors state that their result...

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