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Tag: "safe" at biology news

Progress made in HIV vaccine development

...ected 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 vector vaccine was also well-tolerated, but higher doses led to ...

Researchers develop technologies to devour food pathogens

..., the methods have the common goal of keeping food safe and preventing people from getting sick, and have each progressed to the point where they could be commercialized, Linton said. Patents are pending on both technologies, and the laser technology is available for licensing. Linton says there is a de...

Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes

...ks of multiple births, as multiple births are less safe for mothers or babies." ...

Recycling technology

...ere are no viable recovery techniques and no fully safe disposal options. Some 40 million LCD television sets were sold worldwide last year with expected sales likely to top 100 million by 2009. Now scientists in the Department of Chemistry at the University of York have won a major DTI competition t...

Good times ahead for dinosaur hunters, according to U of Penn scientist's dinosaur census

...hanging at the rate of 10 to 20 per year. "It's a safe bet that a child born today could expect a very fruitful career in dinosaur paleontology," said Dodson, professor of anatomy in Penn's School of Veterinary Medicine and professor in Penn's Department of Earth and Environmental Sciences. "Unfortunate...

Male contraception: One door opens, another closes

...es, researchers have found that a low dose is both safe and effective in rats. Without this targeting mechanism, only much higher doses are effective--but they are harmful to the body's organs. Dr. Diana Blithe of the U.S. National Institutes of Health, a long-time funder of the Adjudin research, says...

UCSF study will test new vaginal microbicide for herpes and HIV

...s used commonly and was thought to be an extremely safe type of anti-microbial spermicide. But researchers found that it actually increased the rate of HIV infection in women. So now we realize that we must approach new microbicides a little more carefully," Moscicki said. According to the U.S. Centers...

Men with prostate cancer avoid radiation due to misconceptions

... though studies have proven the treatment to be as safe and effective as other treatments for the disease, including surgery, according to a study presented November 5, 2006, at the American Society for Therapeutic Radiology and Oncology's 48th Annual Meeting in Philadelphia. "The study shows that patien...

Performing surgery on a beating heart may be safer

...art, without the aid of a heart-lung machine, is a safe option that leads to fewer negative side effects for bypass patients. This review is featured in Journal of Cardiac Surgery. “Previously, it was more common for doctors to perform artery bypass surgery on the heart by stopping the heart and passing...

Widely used hepatitis B drug spurs HIV drug resistance

...ely used to treat hepatitis B liver infections was safe to use on its own in patients co-infected with HIV. Their findings demonstrate that treatment with entecavir leads to cross-resistance to other antiviral drugs used to treat the AIDS virus. "Our results show that entecavir is no different from any ...

HIV dementia alarmingly high in Africa

...ple with dementia also are less likely to practice safe sex. Before antiretroviral medications were available in the United States, the U.S. rate of HIV dementia was similar to what was discovered in this study in Uganda, says Sacktor. Unfortunately, he says, only 20 percent of people infected with HIV...

New UD technology removes viruses from drinking water

...ne-sixth of the world's population--lack access to safe water supplies. Four billion cases of diarrheal disease occur worldwide every year, resulting in 1.8 million deaths, primarily infants and children in developing countries. Eighty-eight percent of this disease is attributed to unsafe water supplie...

Widely used iron nanoparticles exhibit toxic effects on neuronal cells

...f cell suggests that these particles may not be as safe as we had once thought." In their studies, the UCSD researchers used PC12 cells, a line derived from a rat pheochromocytoma. Nerve growth factor prompts PC12 cells to express a variety of neuron-specific genes and generate thin sprout-like cellular...

Cryoablation -- A new treatment option for some kidney tumor patients

...hope that the long-term results prove this to be a safe alternative for some kidney tumors." While the researchers caution that they need five to 10 years of follow-up to be able to consider this a curative treatment, they are optimistic about future findings. ...

Nanoparticles for delivery of prostate cancer treatment

...ver the Icon gene, a system that was effective and safe in animal models and is being prepared for a clini... the Icon. "The key is to have an efficient and safe way to deliver a specific and effective therapeutic agent," said Garen. "Having the nanoparticle tar...

Manual dishwashing study digs up dirt on dish cleanliness

...at certain foods—especially cheese and milk—can be safe havens for bacteria when dried onto dishware. Lipstick, however, proved to be dangerous to bacteria. "After washing, there were lipstick stains still left on a few glasses, but it was the least hospitable substance for bacteria," Pascall said. "It...

Cellulose nanocrystal research could lead to new vaccines, computer inks

...zard if inhaled. The ink jet printing allows for a safe method of deposition of the nanocrystals. ...

Nanoparticles can track cells deep within living organisms

...an hair ?are made up largely of perfluorocarbon, a safe compound used in artificial blood. The fluorine atoms in the particles can be detected by tuning an MRI scanner to the unique signal frequency emitted by the perfluorocarbon compound used. Since several perfluorocarbon compounds are available, di...

Salamanders suffer delayed effects of common herbicide

...ake pesticide registration decisions and to derive safe concentrations last for about four days," said Jas...d between species that can affect our estimates of safe chemical concentrations." Atrazine is one of the most widely used pesticides in the United State...

Leukemic cells find safe haven in bone marrow

...ht will help researchers find ways to disrupt this safe haven for leukemic cells that need asparagine," added James R. Downing, M.D., St. Jude scientific director and chair of the Pathology department. Downing is a co-author of "The Journal of Clinical Investigation" paper. The "ASNS" gene controls produc...

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