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Tag: "permanently" at biology news

Science finds new fix for UV-damaged skin in arthritis treatment

...r many women, accumulated sun exposure has already permanently damaged their skin cells, causing them to overproduce pigment that shows up as unsightly dark splotches and uneven skin tone over time. But new research indicates that glucosamine - a compound best known for treating arthritis ?can actually help stop...

New 'implanted contacts' designed to fix nearsightedness

... ICL can replace or reduce the need for glasses by permanently placing the specially fitted artificial lens in front of the eye's natural lens, rather than replacing the natural lens as other implanted lens do, said Dr. Bowman, professor of ophthalmology. The lens, made of a special collamer material, corrects ...

Sociality of sweat bees evolved simultaneously during climate change

... type of social behavior in which the animals have permanently sterile worker castes (among other traits). Eusocial animals include honey, bumble, carpenter and sweat (halictid) bees, ants, termites, many wasps as well as certain kinds of shrimp and the naked mole rat. Danforth's study, to be published in a fo...

Common enzyme is a key player in DNA repair

...over a certain kind of blemish so that it does not permanently damage the genome. The DinB gene and its protein product were first discovered in Walker's lab in 1980, long before scientists knew anything about translesion polymerases. Then graduate student Cynthia Kenyon, now a biologist at University of Calif...

Scientist measures role of science's coolest player: The snow

...e absence of snow, total regions of permafrost-the permanently frozen soil of the cold north-are likely to expand in area. Without the insulating effect of snow, in other words, soils in colder regions of the world are in fact likely to get much colder. The surprising result has implications for the health of pe...

Sangamo BioSciences demonstrates its ZFP treatment protects cells from HIV infection

...the candidate drug. We believe that using ZFNs to permanently modify the CCR5 gene specifically in T-cells and thus directly block the expression of the protein on the surface of these cells may have several advantages over the systemic effects of other drugs in development." Small molecule or antibody approac...

Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace

...nd then revived, suggesting that the memory wasn't permanently stored. This latest study is the first to combine fluorescent dye imaging developed by Galizia, and advanced image processing and mathematical data analysis developed by Galán to actually detect a working memory trace. In the current research, t...

Sperm stem cells closer to being like embryonic stem cells

... that prevented rat sperm stem cells from changing permanently into sperm have brought researchers one step closer to coaxing such cells to behave like embryonic stem cells, capable of growing into many other types of cells in the body. Researchers at the Cecil H. and Ida Green Center for Reproductive Biology S...

Anti-cancer drugs may hold promise for premature aging disorder

... tag, Capell speculated that progerin was becoming permanently stuck to the inner nuclear membrane. There, he suspected, it enmeshed other scaffolding proteins, preventing their proper integration into the lamina. If progerin's tendency to stick to the inner nuclear membrane is indeed the culprit in nuclear bleb...

Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds

...ver the body. Another is convincing those cells to permanently produce the therapeutic protein made by those genes. The gene therapy technique Rando and postdoctoral fellow Carmen Bertoni, PhD, used was developed by Michele Calos, PhD, associate professor of genetics. One of the main advantages of this method ...

Gene that helps mosquitoes fight off malaria parasite identified

...g a transgenic mosquito in which the SPRN6 gene is permanently switched on, in an effort to create a mosquito that would be immune to the Plasmodium parasite. They believe that such a mosquito could help disrupt the transmission of malaria to humans. "An immune-responsive serpin, SRPN6, mediates mosquito defens...

Amphetamines reverse Parkinson's disease symptoms in mice

...lear, Gainetdinov said. On the other hand, animals permanently lacking dopamine cannot survive, he added. While the results are promising, the researchers cautioned, Ecstasy's ability to stimulate movement in the mice occurred only with high doses of the drug. Such high doses might destroy nerve tissue in norma...

Research casts doubt on circulating stem cells

...sed into the blood from bone marrow many genes are permanently "switched off" and the cells cannot simply be switched back on again. After all, what comes from bone marrow is generally blood and not muscle tissue. The story of a "jack of all trades" circulating via the blood stream throughout the body and repair...

Freeze-dried mats of microbes awaken in Antarctic streambed

...pen expanses of barren ground, stream channels and permanently ice-covered lakes. The life forms inhabiting the area include microorganisms, mosses, lichens and a few groups of invertebrates. Study collaborators included Cathy Tate of the U.S. Geological Survey, Denver; Ned Andrews of the USGS, Boulder, Colo.; ...

Study charts origins of fear

... has charted how and where a painful event becomes permanently etched in the brain - a discovery that has implica... of distressing events, such as amputations, to be permanently imprinted in the brain." Zhuo says that fear memory does not occur immediately after a painful e...

UF researchers kill resistant bugs one bandage at a time

... the substance to be efficiently mass produced and permanently adhered to wound dressings or ready-to-wear clothi...ting comprises thousands of nitrogen clusters that permanently bond to substances such as gauze and fabric. Other dressings use a process that allows molecules to ...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...ong enough to damage the delicate cambium beneath, permanently cutting off the flow of sap between the roots and the leaves. While most trees in this ecosystem never evolved thick bark to protect themselves from fire, some appear more vulnerable to fire than others, and others that appear to have died soon bounc...

Cancer related gene p53 not regulated as indicated by previous tissue culture research

...optosis, which directs the cell to commit suicide, permanently removing the damaged DNA from the organism. Since the p53 protein is able to trigger such drastic action as cellular suicide, the cells of the body must ensure that the p53 protein is only activated when damage is sensed and that the protein is quic...

Researchers pioneer new gene therapy technique using natural repair process

...h a method of gene therapy that can accurately and permanently correct mutations in disease-causing genes. The findings are available online in Nature. By artificially initiating a DNA repair process known as homologous recombination, Dr. Matthew Porteus of UT Southwestern, working with scientists from Richmon...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

...try. At times these pests, whose sucking beaks are permanently attached to and suck juice out of leaves, infested trees so densely that the trees appeared to be covered with snow. Introduction of 129 Australian ladybird beetles (Rodolia cardinalis), a natural predator of the scale, to a Los Angeles orange grove...

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