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Tag: "throughout" at biology news

New tool reveals secrets of migrating cells

...photon imaging to obtain real-time images of cells throughout the top half-millimeter of a living organ, not just on the surface of tissue or within a slice. "In our earlier studies (published in Science) we could see cells getting together, presumably signaling one another. In our current work, we observe cel...

Assessing the Amazon River's sensitivity to deforestation

...irst detailed representation of the stream network throughout the 6 and 1/2 million km2 basin, and by itself, took 5 people over nine months to create. Researchers all over the globe are now using this data. The second phase, led by Michael Coe, an associate scientist with The Woods Hole Research Center, was t...

Can our genes tell the story of our divergence?

...y genes, the authors explain, were likely targeted throughout mammalian evolution, while the perception and olfactory genes probably reflect primate-specific adaptations. Nielsen et al. also found a "surprising number" of tumor-suppressor and apoptosis genes. The factors behind this pattern are unclear, but th...

Attacks of King George III's madness linked to key metabolism molecule

...archers believe plagued King George intermittently throughout his tumultuous reign, can be brought on by fasting and exposure to certain drugs, and is successfully treated by feedings of sugar and high-carbohydrate food. A biological explanation for these nutritional effects has been lacking. The Dana-Farber s...

Researchers feed tiny pills of RNA to planarians to identify genes essential for regeneration

... associates fed the worms dinner, the RNA diffused throughout their bodies. Sánchez Alvarado and Helen Hay Whit...ated to cause disease in nearly 300 million people throughout the world, these genes might make attractive drug targets," Sánchez Alvarado and his fellow research...

OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies

...ds of babies born to mothers who continue to smoke throughout pregnancy despite physician warnings. The research is published in the current edition of the American Journal of Respiratory and Critical Care Medicine. "The findings of this research are highly applicable to humans," said Eliot Spindel, M.D., Ph.D...

Scientists discover stem cell origin of neck and shoulders

...om the same stem cell origin they 'stick together' throughout their life ?normally without us noticing it." As the joining points between muscles and bones have survived unaltered across hundreds of millions of year researchers can also start to map cell territories into fossils. For the first time the researc...

University of Nevada, Reno research team discovers hormone that causes malaria mosquito to urinate

... insect from reproducing. It is being used heavily throughout the United States to help prevent the spread of West Nile Virus. Schooley's contribution to the development of methoprene was to prove that it is harmless to animals and the environment. "Table salt is far more toxic," said Schooley, a professor o...

New Discovery May Help Doctors Treat Infertility

...e the effects of estrogen hormones and are present throughout the female reproductive tissues. These new data indicate that this receptor plays a critical role in ovulation, and suggests that women who do not have this receptor may benefit more from alternative infertility treatments. The findings are reported ...

Thinking the pain away? Study shows the brain's painkillers may cause 'placebo effect'

...' rating of their pain within the same point range throughout the experiment. The placebo, a small amount of hydrating solution, was then given intravenously every four minutes. As the researchers alerted participants that the placebo was coming, and injected the placebo dose, the amount of additional concentr...

For first time, brain cells generated in a dish

... a fixed amount of brain cells that must last them throughout their lives. In people, stem cells develop naturally into full-fledged brain cells as they travel through a neural pathway that begins deep within the brain in a region called the subventricular zone. The primitive cells mature along the way, finish...

Scientists devise way to measure RNA synthesis on the fly in a live cell

...portant intermediary between DNA and the factories throughout the cell that produce proteins. Some biologists have recently begun to identify families of RNA molecules that also play a major role in determining when and how genes are turned on and off, but they have lacked the ability to monitor action of these...

Virologist finds contagious equine flu in dogs

... dogs showing symptoms, the flu could be spreading throughout the country. It was originally documented in greyhounds at tracks and kennels but now is infecting all breeds of dogs. Ongoing testing is being done to track the spread of the virus to different regions of the country. "Right now, we have a major ou...

Hybrid grass may prove to be valuable fuel source

...man and others take measurements of photosynthesis throughout the day. He measures the intensity of the sun and then places a leaf in a chamber, allowing him to measure the rate of photosynthesis depending upon ambient sunlight. Preliminary results show that Miscanthus has a 27 percent greater rate of photosynt...

Genetic discovery could lead to drought-resistant plants

...ltimately, they shape the flux of carbon and water throughout entire ecosystems and affect the carbon cycle on a global-scale." The study was supported by the University of Toronto, the Natural Sciences and Engineering Research Council of Canada and the Biotechnology and Biological Sciences Research Council of ...

Cultural norms not unique to human societies

...ch may reveal these findings to be more widespread throughout the animal kingdom." ...

Survival of heart patients on beta-blockers varies greatly with genetic variation

...rger study of 4,500 heart patients from 20 centers throughout the country. Called TRIUMPH (Translational Research Investigating Underlying Disparities in Myocardial Infarction Patients' Health Status) and funded in part by the National Institutes of Health, the study will evaluate patients' symptoms, heart fu...

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

...The control mice, on the other hand, did just fine throughout the whole procedure. When we gave the mdx mice an infusion of P188 before the dobutamine, none of the mdx mice went into cardiac failure. The polyoxamer had an instant corrective effect in the mdx mice, which really surprised us." In future research...

Bacteria recognize antimicrobials, respond with counter-defenses

...lent strains of salmonella will become more common throughout the food chain. Learning how this sometimes deadly organism fights back against the immune system may lead to treatments that get around bacterial resistance. Work in this area may also suggest ways other disease-causing, Gram-negative bacteria main...

AIDS expert says global strategy needed to combat feminization of HIV/AIDS

...years leading major efforts to combat HIV and AIDS throughout the world, is calling for global strategies and resources to confront the rapid "feminization" of the AIDS pandemic. Quinn, a professor of infectious diseases at Hopkins and a senior investigator at the National Institute of Allergy and Infectious D...

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