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Tag: "protection" at biology news

Mushrooms as good an antioxidant source as more colorful veggies

...d determining how effective a food is in providing protection against oxidative damage. Anti-oxidants inhibit increased rates of oxidation, which can damage proteins, lipids carbohydrates and DNA. She adds, "The ORAC assay does not tell what happens in the human body but this assay is currently under investi...

Widespread elephant slaughter discovered in Chad

...attack. Elephants in the park have enjoyed strong protection from the Chadian government and the EU, but the large percentage that leaves the park during the wet season has not been as well protected. All hunting of elephants in Chad is illegal, and the sale of ivory has been banned since 1989, though black-ma...

Trial success for diabetic nerve therapy

...d produce a growth factor that has a role in nerve protection and regeneration. "As the data in the paper demonstrate, we have had some striking success." The US clinical trials ?carried out by Professor Tomlinson's collaborators at biotech firm Sangamo BioSciences Inc ?have also been encouraging with the onl...

Taking evolution's temperature: Researchers pinpoint the energy it takes to make a species

... will help efforts to identify and model areas for protection and conservation." By observing changes in a unicellular animal whose body temperature varies according to its surroundings, as opposed to a mammal, which regulates a constant body temperature, scientists could more precisely measure rates of specia...

COX-2 inhibitors significantly reduce risk of cancer

...ors appears to provide about the same magnitude of protection from prostate, lung and colon cancer. "These results suggest strong potential for regular use of these drugs in cancer prevention. Still, we know these drugs may have side effects, so we are not advising people to go out and start taking them until ...

Marrow-derived stem cells deliver new cytokine to kill brain tumor cells, offer protection

... malignant brain tumor cells and provide long-term protection against their return. Results of an animal study ...s to migrating glioma islands and offers long-term protection ?all of which would make this a very attractive therapeutic option." In the animal study, bone marr...

Hopkins study suggests commercially available antibiotic may help fight dementia in HIV patients

...h HIV proteins. The dose of ceftriaxone needed for protection was well within the range currently used for treatment of bacterial infections. "These results indicated that this class of drugs may prove effective in treating HIV patients with dementia," Rumbaugh says. About 500,000 people in the United States ...

Enzyme crystal structure reveals 'unexpected' genome repair functions

...ing NER critically important for cell survival and protection against mutations. NER is a critical defense mechanism that removes DNA lesions caused by the mutating effects of sunlight (ultraviolet light) and toxic chemicals. In addition, NER is critical to the success of the anticancer drug cisplatin, since ...

Illegal trade is propelling rare turtle toward extinction, new report

... report includes recommendations, including better protection within Indonesia, capacity building to increase and improve enforcement against poachers and educating enforcement officials and exotic pet dealers in the U.S., Japan and other countries where the turtles are still in high demand. "We hope that b...

Poison dart frog mimics gain when birds learn to stay away

...ike the less toxic poison frogs without losing any protection from predators. The result is surprising, because...come a different color pattern if it can enjoy the protection of the predator generalization brought on by more toxic species in the community." Taking predator ...

U-M researchers take new approach to defeating Gram-negative bugs

...in structures that look like hairs. That exterior protection is part of what makes Gram-negative bacteria harder to kill antibiotics, Woodard said. Woodard's team set out to genetically modify the cells to eliminate the key sugar to which the hair anchors on the outside of the cell. "Unfortunately, the bug...

Outsmarting the smartie bug

...isease." "The current vaccines provide excellent protection against pneumococcal disease, but only that caused by some of the 90 serotypes, and it is important that we keep a watch on the development of this organism. Our work in describing all known variants will help in that surveillance" Two vaccines ar...

Plant-derived vaccines safeguard against deadly plague

...pick and choose selective antigens that can confer protection and limit the potential for adverse reaction," said Mason. More than half the vaccinated animals survived the challenge with all forms of the antigen, and guinea pigs vaccinated with V antigen alone had the highest survival rates. "This study pro...

How can we protect patients with weakened immune systems from influenza?

... supplies of vaccine are limited. We want to offer protection to these special populations of immunocompromised patients, but not to vaccinate them needlessly." Patients on chemotherapy, on immunosuppressive drugs, or with diseases that weaken the immune system may be especially vulnerable to influenza, whethe...

Anti-HIV drug has potential to prevent transmission in women

...al transmission of HIV. Although condoms can offer protection from HIV, in many societies women's legal and soci...y use the gel if it were available and they wanted protection from HIV transmission. ...

Chemical guidance of T cells leads to immunologic memory and long-term immunity

... providing, together with antibodies, long-lasting protection following vaccinations," says NIAID Director Anthony S. Fauci, M.D. The body contains hundreds of millions of CD8+ T cells, but only a tiny fraction of them become activated during an infection. These are selected because each CD8+ T cell carries a ...

Rhinos clinging to survival in the heart of Borneo, despite poaching

... WWF and Malaysian authorities have launched rhino protection units to patrol the area where the rhinos were fou... the survey results were not released until strong protection measures could be put in place in the areas where the rhinos are found. Those security measures were...

Less is more, gene study shows

...but has lost its function in humans---might confer protection against severe bacterial infection in the blood (sepsis). But humans lost that gene so long ago, it was hard to pinpoint the evolutionary forces behind the loss. So the researchers focused their attention on another human-specific pseudogene, CASP...

Front-line immune cells mature in four stages, study shows

...ader immune responses such as the body's permanent protection following vaccination. Understanding the secrets of NK cell development in humans could lead to new therapies for cancer, infection and for patients with immune deficiencies. The study by researchers at the Ohio State University Comprehensive Cance...

New compound protects against liver cancer

...ion of the Nrf2 pathway with CDDO-Im could provide protection against a number of diseases triggered by environmental agents," said Thomas Kensler, PhD, a professor with the Bloomberg School's Department of Environmental Health Sciences and lead author of the study. In their research, Kensler and his colleague...

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