Tag: "between" at biology news

Washington University in St. Louis plays key role in sequencing moss genome

...edge of this plant's genome will allow comparisons between genes to be made that will give us insights as to ...ersity to Quatrano, led to research collaborations between Washington University and Leeds five years ago that resulted in the sequencing of certain expressed ...

Columbia, Stony Brook, Guidant to develop biological pacemaker based on gene & cell therapies

...y Brook. The research grew out of collaborations between Columbia's Center for Molecular Therapeutics, headed by Dr. Rosen, and Stony Brook's Institute of Molecular Cardiology, headed by Dr. Cohen. "Our partnership with Guidant provides an opportunity to convert research done by scientists at our two unive...

Protein fishing in America: The movie

...sequent cellular behavior. But this vital exchange between single molecules has defied direct observation because that line-flicking and message-passing happen randomly at such a small scale. A Pacific Northwest National Laboratory team led by H. Peter Lu, using a technique called single-molecule photon stam...

University of Pittsburgh receives $10 million grant for head and neck cancer

...search-related patient issues and act as a liaison between patients and scientists. In the first major proje...ment of epidemiology, will examine the correlation between promising genetic markers for head and neck cancer and tobacco and alcohol use. "Eighty percent of ...

OHSU-VAMC study sheds light on estrogen's benefit for MS

... frequently in females than in males. But the link between pregnancy and MS has been hotly debated. In 1998, scientists in France went a step closer to putting the issue to rest when they conducted the first large study aimed at assessing pregnancy and delivery on the course of the disease. The group found t...

Critically endangered monkey species plummets more than 50 percent since 1994

...r within the next decade. Scientists estimate that between 281 and 317 individuals still exist in 19 distinct populations. Rampant development separates the remaining populations of this langur species, preventing the groups from interacting with one another. Fourteen of the groups are likely to disappear wi...

What actually influences air pollution over the Indian Ocean?

...sed on nitrogen oxide pollution during the periods between the summer and winter monsoons - the monsoon transition periods. Nitrogen oxide (NOx = NO + NO2) is an important component of tropospheric chemistry, which catalyzes ozone production and influences hydroxyl radicals, the "detergent" of the atmosphere...

Images reveal how rotavirus - leading cause of diarrhea - enters cells

...s. Rotavirus infects almost all children, usually between 6 months and 2 years of age, and causes gastroenteritis that is sometimes severe enough to require hospitalization. The virus kills about 440,000 children each year, mainly in developing countries. The only licensed vaccine, RotaShield, was pulled f...

Two warbler species find the West isn't big enough for both of them

... these are presumably the result of hybrid matings between the 'tough-guy' Townsend's and the females of the ... hermit and hybrid warblers. All the captures came between 7 a.m. and 1 p.m. to minimize the effect on their measurements of hormone level fluctuations through...

JGI announces community sequencing program portfolio

...ty is that it pales in comparison to the diversity between the microbes that make up the bulk of the biomass on the planet. Accordingly, to close conspicuous gaps in our understanding of the tree of life, the U.S. Department of Energy (DOE) Joint Genome Institute (JGI) announces a heavy emphasis on microbes...

Engineering endurance: The future of the Olympics?

...ce of muscle types probably by inducing conversion between fiber types, which is mediated by changes in gene expression. Evans and colleagues suspected that a nuclear receptor called PPAR--a major regulator of fat burning in fat tissue that is also prevalent in skeletal muscle--might be involved and genetic...

Length of sex act in flies dictated by genetics

...are also found in humans they have been conserved between tiny fruit flies and humans through millions of years of separate evolution. In humans, they affect a vast array of functions from sleep to body temperature, the nervous and hormonal systems, moods and work productivity. Clock genes also regulate tim...

Carnegie Mellon scientists reveal ways of studying, resolving PCB contamination in US rivers

...n these toxins. At dissolved oxygen concentrations between 0.5 and 4 ppm, the team found no oxygen-using bacteria at work digesting PCBs in sediments taken from the Grasse River in upstate New York. These findings will complicate in situ bioremediation efforts. ENVR 37. Statistical method to evaluate the oc...

Anticancer drug zebularine specifically targets tumor cells

... ability to differentiate and grow. The difference between tumor cells and normal fibroblasts is that the gro...th zebularine slowed tumor-cell growth by anywhere between 32 and 68 percent. The fibroblasts, on the other hand, showed only a 12 to 21 percent slowdown. Much...

Gold quantum dots have applications in biological labeling, nanoscale optics

...uctor quantum dots. Providing the "missing link" between atomic and nanoparticle behavior in noble metals, ...ckson added. "They can provide the 'missing link' between atomic and nanoparticle behavior in these metals."...

Why your knees and quads hurt more after running than walking: You're only human

...ergy. The study identifies this single difference between walking and running as playing an important role i...tially at the gait transition. Due to the contrast between the knee extensors and the other limb muscle groups, they identified the high forces generated by kn...

Testing the fitness of biological clocks

...locks act up. Recent studies have even found links between these molecular time-pieces and cancer. Microscopic pacemakers--also known as circadian clocks--are found in everything from pond scum to human beings and appear to help organize a dizzying array of biochemical processes. Despite the important role t...

Breakthrough in understanding of hereditary disease of lymphatic vessels

...ymphatic valves, and regulation of the interaction between lymphatic endothelial cells and vascular smooth muscle cells. According to Professor Kari Alitalo, the senior author of the study, the insights gleaned into FOXC2 function may be applicable in the development of therapies for several disorders that ...

PCB breakdown in rivers depends on sediment-specific bacteria, find Carnegie Mellon U. scientists

...s or other factors could account for the variation between PCB-digesting microbial communities taken from the two rivers. The research team ultimately hopes to coax bacteria with a preference for PCBs into becoming more dominant life-forms in sediments. Future studies that modify nutrients in sediments from...

Genetic clues found for common congenital brain disorder

Thanks to a productive collaboration between clinical and basic scientists, researchers from the University of Chicago have identified the first genetic cause of one of the most common birth defects of the brain, Dandy-Walker malformation (DWM). Infants with this disorder, about one in 10,000 ...

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