Prompt

NYC's First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention

New York City's Public Health Department today issued a public health advisory after reporting the first documented case of an alarming, new, rapidly-progressing and highly drug resistant strain of HIV in a New York man who progressed from his initial HIV infection, thought to have occurred in mid-October 2004, to a largely untreatable strain of AIDS in just three months. According to City...

Plants defy Mendel's inheritance laws, may prompt textbook changes

Contrary to inheritance laws the scientific world has accepted for more than 100 years, some plants revert to normal traits carried by their grandparents, bypassing genetic abnormalities carried by both parents. These mutant parent plants apparently have hidden templates containing genetic information from the preceding generation that can be transferred to their offspring, even though the...

PET/CT can identify new cancer lesions at early stage, allowing for prompt treatment

A team of researchers at Johns Hopkins Medical Institutions in Baltimore, Md., reports that whole-body positron emission tomography/computed tomography (PET/CT) scans may help physicians identify new, unexpected malignant cancerous tumors in patients, according to an article in the May issue of the Society of Nuclear Medicine's Journal of Nuclear Medicine. "PET/CT can help find additional...

Plant defenses prompt bacterial countermeasure in the form of 'island' DNA excision

Seeking to catch an arms-race maneuver in action, researchers have uncovered new evidence to explain how bacteria in the process of infecting a plant can shift molecular gears by excising specific genes from its genome to overcome the host plant's specific defenses. Throughout evolution ?in the wild and in crops cultivated by humans ?plants have developed systems for resisting the attack o...

Just like us, social stress prompts hamsters to overeat, gain weight

Put a mouse or a rat under stress and what does it do? It stops eating. Humans should be so lucky. When people suffer nontraumatic stress they often head for the refrigerator, producing unhealthy extra pounds. When Syrian hamsters, which are normally solitary, are placed in a group-living situation, they also gain weight. So scientists at the Center for Behavioral Neuroscience at Georgia S...

Renewed dolphin slaughter prompts new campaign

As the annual dolphin drive hunts begin in the Japanese villages of Taiji and Futo, a consortium of scientists and zoo and aquarium professionals has launched a campaign to end the practices through public awareness and by appealing to the government of Japan to put an end to the hunts. The "Act for Dolphins" campaign--which includes members from The New York Aquarium, Emory University, and the...

Malaria vaccine prompts victims' immune system to eliminate parasite from mosquitoes

Researchers at the National Institutes of Health have developed an experimental vaccine that could, theoretically, eliminate malaria from entire geographic regions, by eradicating the malaria parasite from an area's mosquitoes. The vaccine, so far tested only in mice, would prompt the immune system of a person who receives it to eliminate the parasite from the digestive tract of a malaria...

Dopamine used to prompt nerve tissue to regrow

When Yadong Wang, a chemist by training, first ventured into nerve regeneration two years ago, he didn't know that his peers would have considered him crazy. His idea was simple: Because neural circuits use electrical signals often conducted by neurotransmitters (chemical messengers) to communicate between the brain and the rest of the body, he could build neurotransmitters into the materi...