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Tag: "healthy" at biology news

Natural anti-viral enzyme helps keep cancer cells alive, researchers find

... The researchers found that TBK-1 is turned off in healthy cells unless the immune response is stimulated but...ed the function of TBK-1 in both the cancerous and healthy cells, cancer cells died while healthy cells survived. A German research team has studied clinical...

PET imaging shows young smokers quick benefit of quitting

...to cold stimulation (also called 15O-water PET) in healthy young smokers," noted the co-author of "Smoking Cessation Normalizes Coronary Endothelial Vasomotor Response Assessed With 15O-Water and PET in Healthy Young Smokers." Researchers from the Japanese university also noted that improvement was "preserve...

Scientists crack genetic secrets of human egg

.... This presented the availability of exceptionally healthy eggs, Cibelli said. All the donors granted informed consent for their surplus eggs to be used for this research. Cibelli worked with researchers in Chile to extract the RNA from the unfertilized eggs soon after they were harvested. That material (a...

Molecules in blood foretell development of preeclampsia

...ding process is essential to keeping blood vessels healthy and maintaining normal blood pressure. Similarly, a molecule known as transforming growth factor beta (TGF beta) binds to endoglin, and this binding is also required to keep blood vessels healthy. Dr. Levine explained that the prevailing theory ho...

Environmental toxins may cause body's defenses to worsen lung disease

... immediately wants to destroy the damaged cells so healthy tissue can take over," explains Borchers, assistant research professor of environment health at UC and principal investigator for the study. "But when the lungs experience chronic, low-level damage, we believe at some point that damage exceeds the ...

Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses

... against parasites, but these genes are dormant in healthy people. However, when turned on by so-called ghost parasites, the potent inflammatory response is medically very difficult to control. Researchers say that although chitin, a rigid chemical compound common to fungi, insects and roundworms, is not ...

Train your brain to hear your friends at a party

...ish sounds much better. The Oxford study placed healthy ferrets in a "ring of sound" where a sound is played from one of 12 speakers placed in a circle around the ferret and their response is monitored to see if they can detect which speaker the sound is coming from. Ferrets with normal hearing are very g...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

...ntly, however, newer forms of MRSA began to strike healthy people who have not been recently hospitalized or ...e 45 cases of pyomyositis or myositis in otherwise healthy children who were hospitalized at Texas Children's Hospital from 2000 through 2005. Sixteen of these...

Progress made in HIV vaccine development

...nity," said Graham. Both vaccines were tested in healthy uninfected adult volunteers. The DNA vaccine was found safe and well-tolerated. By week 12 following immunization, 97.5% of vaccinees experienced positive CD4 T cell responses and 40% experienced positive CD8 T cell responses. The recombinant vec...

Mayo researchers discover HIV dependence on a human protein

...nto a computer hard drive. While patients are kept healthy when those copies are "suppressed" with multiple daily antiviral medicines, they are never cured. Stopping the medicines even briefly lets HIV repopulate the body with many millions of copies, like a computer virus spreading around the world from a s...

Fast test for low blood flow in dogs detects early heart trouble

... for five minutes. When forced to pump faster, healthy heart tissue and surrounding blood vessels will adapt, while unhealthy, blocked ones will slow blood flow. These changes are not usually perceptible to the human eye from the scanned images but can be detected and quantified with CT imaging and comp...

Powerful genome ID method extended to humans

...ure between two genomes. Comparing optical maps of healthy and diseased genomes can guide researchers to crucial mutations. Though he called optical mapping "potentially very powerful," Green added that it requires such a high level of expertise that only a couple of laboratories in the world use the meth...

Study IDs protein that inhibits HIV from growing in cell cultures

...eened for this common virus. Up to 3 percent of healthy blood donors in the United States have active GBV-C infection. An additional 12 percent have antibodies indicating past exposure at the time of donation. Because the GBV-virus is transmitted through bodily fluids, as is HIV, many HIV-positive individ...

New sunscreen ingredient to heal sunburn and help prevent skin cancer

...at potentially lead to DNA damage that can convert healthy skin cells into cancerous ones." ...

Inheritance outside DNA

...ooking at the epigenetic changes in colon cells of healthy people.? ...

Did 'ABCs' cause Uganda's fall in HIV rates?

... learn the needed tools to approach sexuality in a healthy and informed manner." ...

U-M researchers use nanoparticles to target brain cancer

...e photofrin therapy is that it can cause damage to healthy tissue. In our study, the nanoparticle becomes a v...mmon side effect of photodynamic therapy, in which healthy skin becomes sensitive to light. In rat studies, researchers found those treated traditionally wi...

Amateur boxing linked to brain cell injury

...archers also tested the cerebrospinal fluids of 10 healthy men who were not boxers as controls. Levels of several chemicals that indicate damage to brain cells (neurons) and their axons, the thread-like extensions of the cell that reach toward other brain cells to transmit electrical impulses, were measured...

Pattern of human Ebola outbreaks linked to wildlife and climate

...affecting everything in its path, since apparently healthy mammal communities thrived in close proximity to Ebola epidemic sites." Lahm has been a research associate at the Institute for Research in Tropical Ecology in Makokou, Gabon since 1982. She was conducting unrelated ecological studies when outb...

Report calls for improved monoclonal antibodies against solid tumors

...cancer cells while minimizing collateral damage to healthy tissue. That damage causes the toxicity associated with chemotherapy and radiation therapy. In the nearly 20 years since scientists were able to create monoclonal antibodies that could be safely used in humans, eight monoclonal antibodies have been a...

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