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Tag: "cycle" at biology news

Fruit fly studies open new window on cancer research

...last hundred years. As a simple animal with a life cycle of only two weeks, mutations are easy to generate and study. This basic research at Oxford has now attracted funding from Cancer Research UK to further investigate the processes involved and allow Dr Goberdhan to establish her own group. Professor J...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

... training increases muscle oxidative potential and cycle endurance capacity in humans," by Kirsten A. Burgo... training increases muscle oxidative potential and cycle endurance capacity in humans," by Kirsten A. Burgomaster, Martin J. Gibala et al., McMaster Universi...

Mass production of human papillomavirus could lead to gains against cervical cancer

... to attack at an earlier stage in the virus's life cycle to stop HPV before it can replicate. The researchers, led by Paul Ahlquist, a Howard Hughes Medical Institute investigator, published an article describing their new technique on June 13, 2005, in the early online edition of the Proceedings of the N...

Genetic discovery could lead to drought-resistant plants

...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 the U.K. ...

Researchers create infectious hepatitis C virus in a test tube

...ow scientists to study every stage of the HCV life cycle and develop drugs to treat this life-threatening d...to reproduce aspects of the hepatitis C virus life cycle in cell culture has slowed research progress on this important human pathogen," says senior author C...

'Sinkers' provide missing piece in deep-sea puzzle

...ng to understand global warming. The global carbon cycle is like a complex jigsaw puzzle with many interlocking pieces. Robison's research may supply a piece of the puzzle that has long been missing. Link to news release on web: http://www.mbari.org/news/news_releases/2005/sinkers.html ...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

...h clouds and can easily detect the eye replacement cycle of hurricanes which are precursors to further intensification." Rita was a maximum Category Five on the Saffir-Simpson Hurricane Scale when the ASAR image was acquired. As it continues west through the Gulf of Mexico it has weakened to a still-dang...

Microbe has huge role in ocean life, carbon cycle

...nt of carbon dioxide in the atmosphere. The carbon cycle affects all forms of plant and animal life, not to...ng the summer and decrease during the winter, in a cycle that correlates to the ebb and flow of organic carbon in the ocean surface. Molecular probes, gene c...

Lands surface change on Alaska tundra creating longer, warmer summers in Arctic

... the growth of shrubs and trees, may be creating a cycle of warmer and longer summers in the Alaskan Arctic according to a new study to be published in the Sept. 22, 2005, issue of Science Express. The resulting atmospheric heating in the region of northern Alaska is equivalent to what might be observed i...

Digging in the dirt for life's biochemical foundations

...Eventually, an intricate knowledge of the nitrogen cycle might lead to more efficient use of fertilizers, more productive output on low-input and organic farming operations, and improved ability to stanch the effects of acid rain on natural ecosystems, Shachar-Hill says. "These exciting results suggest th...

New technique may speed DNA analysis

...unmatched in both information content per printing cycle and resolution. They achieved the latter using what Yu calls "nature's most efficient printing technique: the DNA/RNA information transfer." In the new printing method, called Supramolecular Nano-Stamping (SuNS), single strands of DNA essentially se...

New technique helps identify multiple DNA regulatory sites

...unmatched in both information content per printing cycle and resolution. They achieved the latter using what Yu calls "nature's most efficient printing technique: the DNA/RNA information transfer." In the new printing method, called Supramolecular Nano-Stamping (SuNS), single strands of DNA essentially se...

Secret sex life of killer fungus?

...isease and infect humans. Nevertheless, the sexual cycle could be a useful genetic tool for scientists to use in their study of the mechanisms by which the fungus causes disease. Further work is now aimed at seeing if the fungus can truly reproduce by sexual means. ...

Sugar helps control cell division

...archers. "The dogma for decades has been that the cycle of cell division is controlled by the appearance a...the amount of sugar attached to proteins, the cell cycle is disrupted and isn't salvageable unless O-GlcNAc levels are fixed." In experiments with human cel...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

... Leishmanies en condition axénique. Réalisation du cycle évolutif in vitro. Médecine et Armées, 22 (1), 99 and Merlen T, Sereno D, Brajon N. and Lemesre J.L. (1999). Leishmania Spp: completely defined medium without serum and macromolecules (CDM/LP) for the continuous in vitro cultivation of infective prom...

Gaining ground in the race against antibiotic resistance

...esistance race, and it might help slow the vicious cycle enough to develop antibiotics impervious to lactamases. ...

Researchers discover how malaria parasite disperses from red blood cells

...falciparum. P. falciparum spends part of its life cycle in the salivary glands of mosquitoes and is transmitted to human beings through the bite of infected mosquitoes. The parasite infects red blood cells. Called a merozoite at the stage of its life when it infects red blood cells, the parasite multipl...

Mosquito study shows new, faster way West Nile can spread

...damental assumptions about the virus' transmission cycle and may help explain why it spread so rapidly across North America despite experts' predictions that it would progress more slowly or even die out. In the conventional understanding of West Nile transmission, mosquitoes acquire the virus when they b...

New understanding of jet lag

... clock more quickly in response to unnatural light cycle changes." Block said that future therapies, using... the body to try to rapidly adjust to abrupt light cycle shifts. This sudden disruption in the normal pattern can compromise the normal function of organs. T...

UCLA researchers identify key enzyme linked to childhood blindness

...ed blinding diseases caused by mutations in visual cycle genes." The newly identified isomerase enzyme plays a crucial role in the regeneration of rhodopsin visual pigment in the retina after light exposure. Rhodopsin contains a light absorbing molecule called 11 cis retinaldehyde, related to vitamin A, w...

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