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Tag: "start" at biology news

Scientists journey to southern Africa to unravel the secret world of elephant communication

..., elephants 100 miles away in Etosha National Park start to move north in search of water. It could be that...ch puberty, around age 12, they get kicked out and start traveling alone or forming small bachelor herds." The search for a mate in this vast wilderness is f...

Measuring hormone cuts antibiotic use in half in pneumonia patients

...patient's pneumonia is bacterial or viral, so they start all patients on antibiotics, Dr. Tamm said. "Once the treatment is started, it is usually continued for 10 to 14 days, because nobody knows when you can stop without a risk for the patient," he said. Because levels of procalcitonin have been found t...

NIAID begins clinical trial of West Nile virus vaccine

... of the DNA vaccine into the upper arm: one at the start of the trial, a second approximately four weeks later, and a third approximately four weeks after that. To help force the DNA plasmid into muscle cells, the vaccine will be administered by a needle-free injector rather than a conventional needle syri...

Secret of smallpox's success may lead to bioterror cure

...inute! There is something going on here! I need to start fighting a virus infection!' and so it fights the mutant virus and a normal pathogenic virus as well." The gene that Jacobs has isolated and eliminated from the mutants is a special adaptation of pox viruses that appears to help the viruses hide dou...

Master gene controls healing of skin in fruit flies and mammals

...ormally involved in wound healing in order to kick start processes such as cell division and cell migration." Mace, a former graduate student of biology professor William McGinnis, who led the UCSD team, became interested in the healing of insect cuticle when she noticed lesions in the cuticle of certain ...

Stealth Worms May Improve Insect Pest Control

...nce," Stock says. In each location the scientists start with biotic surveys to find out which nematodes and their corresponding bacteria meet local pest management goals. Then they gather samples from soil or other habitats for testing in the laboratory. The nematodes are accurately identified and analyze...

Molecular messengers perform a crucial role in the ability of injured nerve cells to heal themselves

...the damaged axon inform the cell body that it must start producing vital proteins for the healing? That's precisely where the molecular messengers, proteins called Erk-1 and Erk-2, enter the picture. When the axon is injured, these proteins bind to molecules of phosphorus. In this phosphorylated state, the...

Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights

...y inflammatory factors or microbial products, they start putting out chemically unstable compounds such as nitric oxide and superoxide. Together, these compounds generate peroynitrate, a highly potent chemical that modifies many proteins. Unanue's group showed that this chemical modifies the peptides pres...

Future diabetes drugs may target new protein interaction

...ed production of sirtuin1, which in turn lets PGC1 start converting the pyruvate into the glucose the body needs to survive." The relationship between sirtuin1 and PGC1 also connects processes involved in cellular aging and responding to calorie intake in mammals for the first time. In bacteria and yeast,...

PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information

...ed production of sirtuin1, which in turn lets PGC1 start converting the pyruvate into the glucose the body needs to survive." The relationship between sirtuin1 and PGC1 also connects processes involved in cellular aging and responding to calorie intake in mammals for the first time. In bacteria and yeast,...

Computational verification of protein-protein interactions by orthologous co-expression

...ed production of sirtuin1, which in turn lets PGC1 start converting the pyruvate into the glucose the body needs to survive." The relationship between sirtuin1 and PGC1 also connects processes involved in cellular aging and responding to calorie intake in mammals for the first time. In bacteria and yeast,...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...ed production of sirtuin1, which in turn lets PGC1 start converting the pyruvate into the glucose the body needs to survive." The relationship between sirtuin1 and PGC1 also connects processes involved in cellular aging and responding to calorie intake in mammals for the first time. In bacteria and yeast,...

Fungus Effective Against Winged Termites

...nd, shed their wings and find a mate with which to start a new colony that may grow to hundreds of thousands of wood-destroying termites. The researchers' find is significant, according to Raina, because many current control efforts focus on eliminating termite workers in colonies--not on destroying alate...

Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight

...wly emerging infections and could potentially even start pandemics. In addition to flight crew, public health officials and health care professionals have an important role in the management of infectious diseases transmitted on airlines and should be familiar with guidelines provided by local and internat...

Antiretroviral Therapy May Prevent HIV Transmission From Breastfeeding Mothers To Infants

...y continuously for at least six weeks prior to the start of the study, and all of the infants received a single dose of nevirapine and continuous zidovudine therapy after birth. At either two or five months after delivery, all three drugs taken by the mothers were found in breast milk in concentrations si...

Grass makes environmentally friendly biofuel

...tely grass has no political lobby, which makes the start up of any new alternative energy industry problematic," says Cherney. He notes that a pellet-fuel industry was successfully established in Europe by providing subsidies to the industry. And even though the ratio of the amount of energy needed to prod...

Researchers discover key gene involved in bark beetle pheromone production

...ee to another to join other bark beetles, mate and start a new life cycle. But other bark beetles know where to locate mates because they are responding to an "aggregation" pheromone. If this pheromone could be disrupted, the beetles wouldn't be able to organize a "mass attack" to successfully colonize a ...

Cancer related gene p53 not regulated as indicated by previous tissue culture research

...ces on cell growth fail to operate, and body cells start to accumulate mutations, which ultimately may lead to cancer. Not surprisingly, the regulation of this vital safeguard has been studied in great detail for many years but mainly in tissue culture, or in vitro, models. A new mouse model, created by s...

Map of life on Earth could be used on Mars

...diverge for perhaps a billion years, and then they start colonizing each other's environments. The marine E...ats for many hundreds of million years before they start moving into other types of habitats." The 'peculiar' ancestor It isn't clear why bacteria diversif...

Moffitt-USF head toward first human trials of anti-cancer drug that targets protein AKT

...al trials with Moffitt. The trials are expected to start within six to eight months. Patients will be selected for the trials based on whether their tumors have hyperactive Akt, which can be determined by a simple slide-stain test of tumor tissue. Because tricirbine has previously been investigated in hum...

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