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Tag: "reduces" at biology news

Patients to benefit from novel technology revolutionizing high-speed molecular imaging

... earlier diagnosis of diseases, the D-SPECT camera reduces the time a patient spends on imaging equipment, said Patton. Patients receive a lower radiation dose, and personalized scanning takes into account unique patient physiology and anatomy, he added. "Simultaneous imaging of a combination of radiopharmac...

New angiogenesis finding may help fight cancer growth

...key stimulator of blood-vessel formation, and also reduces the number of receptor molecules that respond to V...cer death in the United States. The VEGF-inhibitor reduces the formation of blood vessels, helping starve tumors. But angiogenesis regulation is a two-way st...

Parasitic plants sniff out hosts

... year, a 20 percent infestation of the tomato crop reduces yield by 25 percent and causes a loss of 4 million dollars." The researchers used a variety of experiments to determine how newly emerging dodder shoots find a host. The length of time these parasites can live without a host is determined by the ...

Three-in-one virus killer prevents common, often fatal infections

A novel combination therapy drastically reduces the infection rate of three viruses ?and risk of death ?in transplant patients with compromised immune systems. The findings, to be reported in the Nov. 1 print edition of Nature Medicine, originate from a study conducted at Baylor College of Medicin...

Researchers discover new gene responsible for brittle bone disease

...current study found a new gene, that when mutated, reduces the ability of a protein involved in collagen formation, called CRTAP (cartilage-associated protein), to guide collagen production as it forms the proper framework of bone. "The study is important because it clarifies a new mechanism by which the...

How brain injury leads to seizures, memory problems

...researchers have shown that traumatic brain injury reduces the level of a protein that helps keep brain activ...the researchers showed for the first time that TBI reduces the levels of a protein called potassium-chloride co-transporter 2 (KCC2) within a portion of the br...

Brain protein improves stroke symptoms in rats, even when injected after 3 days

...formation of neurons and counteract neurone death, reduces the size of the area affected by a stroke by a third when injected four hours after the onset of the stroke. The study also shows that regular, delayed injections of G-CSF, starting up to three days after experimental stroke, are effective in restori...

Two-faced protein can stop metastasis or promote it, researchers say

...epithelial-mesenchymal transition" (EMT). The cell reduces its production of E-cadherin proteins and increases expression of mesenchymal cadherins, thus effectively loosening the anchors that keep the cell bound to its neighbors. Cancer, unfortunately, has adopted this strategy in order to spread, Anastas...

Two central mysteries in genome inheritance solved at UCSD

...in the December 1 paper. Aurora phosphorylation reduces the ability of this protein group to bind microtubule polymers. This explains how bad attachments are dissolved, prompting new tries until all chromosomes in the cell are properly connected. Desai's future goal is to discover precisely how the comp...

Jefferson scientists find high glucose before surgery raises risk of dangerous complications

... control dramatically cuts those risks, as well as reduces hospital stays. Because the current study was retrospective, Dr. Mraovic says, drawing firm conclusions from the results can be difficult. The findings need to be confirmed in a randomized, prospective trial. He would like to next find out wheth...

Male circumcision reduces HIV risk, study stopped early

...esults indicating that medical circumcision of men reduces their risk of acquiring HIV during heterosexual intercourse by 53 percent. The study's independent Data Safety and Monitoring Board met Dec. 12 to review the interim data. Based on the board's review, the National Institutes of Health halted the tri...

Rising ocean temperatures, pollution have oysters in hot water

...06. The study showed how cadmium, a heavy metal, reduces the oyster's tolerance of warmer water temperatures and makes it more vulnerable during the summer when water temperatures rise. Half of the oysters exposed to the pollutant in 28° C (82° F) water died within 20 days, said lead researcher Gisela Lann...

Seals protect brain, conserve oxygen by turning off shivering response on icy dives

...e cooler brain requires less energy and oxygen and reduces the chance of damage caused by hypoxia, Folkow explained. Achieved while remaining active Seals have this physiological adaptation available just in case. This study found the seals can dive to more than 1,000 meters and for more than an hour....

New sunscreen ingredient to heal sunburn and help prevent skin cancer

... iron that is released when the skin burns. This reduces the inflammation and pain that goes with sunburn ?which is exacerbated by the iron - and also prevents the build up of harmful sunlight-generated free radicals, which can lead to the development of skin cancers. The new ingredient is light-responsi...

Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

...I to CuI. This unprecedented approach continuously reduces CuII to CuI at the same rate CuII forms while retaining the desired balance between the two states. Ultimately, this technique dramatically lowers the overall amount of Cu catalyst used in ATRP by as much as 1,000 times. The team's new technology v...

Mysterious 'neural noise' actually primes brain for peak performance

...is noise, and the noise itself is in a format that reduces the resources needed to compute it. Anyone familiar with log tables and slide rules knows that while multiplying large numbers is difficult, adding them with log tables is relatively undemanding. The brain is apparently designed in a similar manner...

Cocaine high caused by interference in neuronal receiving stations

... Wang and colleagues first determined that cocaine reduces the activation of glutamate-responsive neurons by affecting a specific component, or subunit, of the receptor, called NR2B. Further experiments revealed that when rats were given cocaine, a specific subunit of dopamine receptors, called D2R, tended...

Global changes alter the timing of plant growth, scientists say

...ty." It allows many species to co-exist because it reduces overlap in the time period when species compete for limited resources. Now, in a study posted online the week of Sept. 4 in the Proceedings of the National Academy of Sciences, ecologists working at Stanford's Jasper Ridge Biological Preserve report ...

Researchers seek to design first treatment for neuroAIDS

...in life and return to work, a condition that often reduces mental function by about 25 percent, and for which there is no approved treatment, deserves attention." A Better Understanding Researchers believe that the virus itself secretes toxins that signal too many human nerve cells to begin programmed ce...

Growth factor stimulates rapid extension of key motor neurons in brain

...nnect to muscles ?and that blocking IGF-1 activity reduces that growth in both cultured cells and in living mice. "Our findings that IGF-1 specifically enhances both the speed and extent of axon outgrowth of corticospinal motor neurons are the first direct evidence of growth factor control over the differe...

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