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Tag: "throughout" at biology news

Underlying cause of massive pinyon pine die-off revealed

...rlying cause of death for millions of pinyon pines throughout the Southwest, according to new research. The resulting landscape change will affect the ecosystem for decades. Hotter temperatures coupled with drought are the type of event predicted by global climate change models. The new finding suggests big, f...

Model identifies genes that induce normal skin cells to become abnormal

...to aggressive cancer cells that migrate and spread throughout the body. The model, developed by Mary J. C. Hendrix and colleagues at Children's Memorial Research Center, consists of a three-dimensional collagen matrix preconditioned by malignant melanoma cells. Hendrix is president and scientific director of...

Clinical trial to test stem cell approach for children with brain injury

...ox said. The children will be carefully monitored throughout for possible side effects. They will be evaluated for brain function one month and six months after the procedure to see if it is improved compared with historical data on the brain function of children of similar age who suffered a similar injury. ...

Older female fish prefer imperfect male mates, study finds

... "females may not have the same mating preferences throughout their lives," Morris said. Funded by the National Science Foundation and the Research Challenge Program at Ohio University, the paper has been published online in Biology Letters and will appear in next month's print edition. Morris' findings raise ...

Bugs expose underground carbon traffic system 10 times more important than fossil fuel burning

...O2). AM fungi produce filaments that spread widely throughout the soil (sometimes referred to as the mycorrhizosphere) and they are known to be important for effective uptake by plants of water and phosphates but they were not known to play any role in the movement of carbon through the soil. The researchers...

Gene therapy potential for treatment of pancreatic cancer

...d supply to enable them to grow rapidly and spread throughout the body. This process is known as angiogenesis. The protein gene was incorporated into a virus (adenovirus), so that it would be able to penetrate the cells, acting as a vector. The test tube experiments showed that 72 hours after infection with t...

Jefferson researchers find nanoparticle shows promise in reducing radiation side effects

...d supply to enable them to grow rapidly and spread throughout the body. This process is known as angiogenesis. The protein gene was incorporated into a virus (adenovirus), so that it would be able to penetrate the cells, acting as a vector. The test tube experiments showed that 72 hours after infection with t...

New understanding of regeneration gained by Forsyth scientists

...p gap junctions, and their expression was detected throughout the worms and in regeneration blastemas, undifferentiated cells from which an organ or body part develops, consistent with a role in long-range signaling relevant to specification of blastema positional identity. Dr. Levin and Taisaku Nogi closed do...

New book highlights world's borderless conservation areas

...xpanded to more than 100 parks and protected areas throughout the world. Transboundary conservation areas, or TBCAs, offer multiple benefits, both internationally and at regional and local levels. They can reduce tensions between countries and help rebuild peaceful cooperation. Peace parks celebrate historical...

Evolutionary conservation of a mechanism of longevity from worms to mammals

...that some molecular mechanisms of aging are shared throughout the animal kingdom." ...

PET imaging reveals the immune system at work

...sease, Witte explained. "The immune system resides throughout the body, and it is not going to be responding the same everywhere." Moreover, a whole-body perspective, Witte said, may be especially useful as new therapies designed to modulate the immune system in response to disease become available. At present...

Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method

...sease, Witte explained. "The immune system resides throughout the body, and it is not going to be responding the same everywhere." Moreover, a whole-body perspective, Witte said, may be especially useful as new therapies designed to modulate the immune system in response to disease become available. At present...

Implantable pumps extend lives of patients too sick for transplant

...ntricle ?the chamber of the heart that pumps blood throughout the body ?is too weak to pump enough blood to nourish the body's tissues. LVADs have been used as successful short-term "bridges to heart transplant" and are increasingly being considered as a long-term heart failure destination therapy, said the res...

Finding rewrites the evolutionary history of the origin of potatoes

...nificant economic damage to farmers in America and throughout the world. "As a taxonomist, my job is to help determine what is a species and to classify those species into related groups," Spooner explains. "Other scientists use these results as a kind of roadmap to guide them in the use of these species base...

Polio vaccination strategies assessed as eradication nears

...Drug Administration and various other institutions throughout the United States revisited the issue using two doses of the newer, enhanced vaccine. They found that two doses of IPV did produce immunity in the digestive tract. The researchers used shedding of virus after treatment with a dose of OPV to measure...

Genetic analysis of Asian elephants in India reveals some surprises

... than half of which are in India. Elephant numbers throughout Asia have declined drastically over the last several hundred years, mainly due to habitat loss and fragmentation, capture and domestication, and, more recently, poaching of males for ivory. To combat these declines, India established 11 so-called "...

Discovering the first steps in transcription-coupled repair

...pair damage to DNA caused by ultraviolet radiation throughout the genome, whereas in CS the global repair mechanism is intact but transcription-coupled repair is defective. Thus active genes cannot be repaired preferentially. In XP patients, exposure to sunlight typically causes hyper-pigmented skin that is dr...

Scientist uses form to explain function of key building blocks of life

...xins that transfer energy in the form of electrons throughout living systems. Rubredoxin is a key part of processes like photosynthesis and respiration, where energy is converted from one form to another. "Variants of rubredoxin have evolved different sequences to transport electrons in the most efficient ma...

Overfishing may drive endangered seabird to rely upon lower quality food

... protection even though the bird has not recovered throughout its range. The researchers argue that such a move ...eats that have caused marbled murrelets to decline throughout their range have not been remedied," said Beissinger. "Coastal old growth forests will require 50 to...

The brain is broadly wired for reproduction

...g the connections between GnRH neurons and neurons throughout the brain, Boehm and his colleagues soon found that they had undertaken an enormous task to figure out these connections. "We were really shocked with what we found," Buck said. "We found that, although the GnRH neurons number only about eight hundre...

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