Tag: "show" at biology news

A new target for control of obesity

...of the National Academy of Sciences, these results show that Shp2 has potential of becoming a novel pharmaceutical target for treatment of individuals suffering obesity and leptin resistance. In 2003, the World Health Organization identified obesity as a growing global threat affecting more than 300 m...

Molecular switch provides clues to remarkable adaptability of human pathogen

... The researchers used transcriptional profiling to show that RetS inhibited a collection of genes known to promote biofilm formation. The researchers conclude that RetS activates multiple virulence factors that contribute to acute infection while simultaneously repressing those required for long-term, chr...

Conversion of flower organs into leaves

... only of leaf-like organs. Together, these studies show that four closely related genes, all of the "MADS-box" class, are necessary for the formation of sepals, petals, stamens, and carpels and that the loss of activity of all four genes results in the conversion of flower organs toward leaves. ...

Identifying the path to infection

...nnel.' Our structure of this protein channel helps show how secretion occurs, which may eventually lead us to determine how to stop E. coli from attaching to the human cell," said Li. The protein channel, known as "PapC," is a member of the "chaperone/usher" family, channels that not only provide a pat...

Spatial structure, dispersal, and management of a recovering raptor population

...chers from the University of California Santa Cruz show that the spatial structure of Peregrine Falcons in California has profoundly influenced the management and recovery of this species. California peregrines suffered a dramatic population crash in the 1950s due to DDT-induced eggshell thinning, and th...

Study links polycystic ovary syndrome with early vascular changes of heart disease

...heir 40s. "These results are provocative and show the need for further investigation of testosterone and PCOS as the two relate to heart and blood vessel disease in later life," said Dr. Talbott. ...

New Royal Society journal studies

...salted and distasteful for the geckos. Our results show that the geckos were able to learn and discriminate the blue pattern from the grey one even though the patterns were changed every training day. Contact: Dr Lina Roth, Department of Cell and Organism Biology, University of Lund, Helgonavgen 3, LUND, ...

Ancient marine invasion sheds light on diversity

...around Cincinnati, Ohio. These Ordovician fossils show great diversity of sea floor invertebrates. They made 700 individual collections and counted about 41,000 individual animal fossils. A typical collection area was a half meter piece of exposed ancient sea floor. Fossils were collected from areas t...

Joslin and Stanford researchers find key clues to muscle regeneration

...of giving rise to new muscle fibers. "Our studies show that only the satellite cells, located near muscle... mice that had injured muscle tissue. "The results show that adult stem cells that are committed to the blood lineage do not normally differentiate into mus...

By impounding iron, FHC foils cell suicide, fuels inflammation

...ov. 2004 issue of the journal Cell, the scientists show that a key step in the process of preventing cell suicide is the induction of ferritin heavy chain (FHC), a protein that collects and hoards iron. By sequestering iron -- which cells with suicidal tendencies need to make the harmful substances that ...

Tropical birds sensitive to environmental cues that can be impacted by global warming

... he said. "We can change weather patterns. Studies show changes in the timing of breeding and migration in birds." Global warming could be the reason, he said, and, if the brain is truly sensitive to environmental cues, the changes due to global warming could have "effects we haven't thought of before." W...

Illegal tuna fishing and farming leads to demise of species

...are expected to be produced this year. "These data show how the fast-growing tuna farming businesses are out of control," said Paolo Guglielmi, head of WWF Mediterranean's marine unit. WWF's specific recommendations include replacing the ICCAT quota system with a new reporting system. "The current quota s...

Ancient fossil offers new clues to brown bears past

...gia at that time. DNA results in the current study show that the new Edmonton specimen belongs to the same genetic group as modern southern brown bears. The age and genetic identity of this bear mean that brown bears not only made it far south sooner than previously thought, but that those bears in the ...

Genetic influences on taste perception of alcohol may influence alcohol intake

...uffy. "Other work from our laboratory and others' show that PROP nontasters experience less negative, as in bitterness, and possibly more positive, as in sweetness, oral sensations from vegetables, and like and consume more vegetables than do PROP supertasters, which may decrease their risk of chronic di...

UCLA scientists uncork fountain of youth for HIV-fighting cells

...Institute. "They grew at a normal rate and didn't show any chromosomal abnormalities that might lead to cancer." "We also saw that telomerase stabilized the telomere length," added Dagarag. "The telomere didn't shorten each time the cell divided, which left the cell able to vigorously battle HIV much lo...

New tool highlights activity of key cellular signal

...nto the mitochondria, our studies are the first to show that it's there." Stimulating cyclic AMP production in a human embryonic kidney cell line containing the targeted fluorescent Epac proteins caused an immediate build-up of cyclic AMP and activation of Epac at the cell membrane, where cyclic AMP...

Sex versus survival: A tradeoff at geographical range limits

...rth America, a series of studies led by Dr. Eckert show that populations switch from being sexual to totally asexual across the northern limit of the species' geographical range. This switch leads to northern populations becoming "enormous, genetically homogeneous superclones." By comparing reproduction i...

UCSD discovery opens new avenues for design of anti-tumor medications

...row toward them. However, these latest findings show that the blood vessels themselves are actively res...ygen may be a potent anti-tumor strategy. "We show that the blood vessels' response to lack of oxygen is just as important as the response of cancer ce...

Nuclear imaging offers possibility for early detection of patients with coronary heart disease

...ted plaque. Advances in understanding cell biology show a need for imaging techniques that can provide information about plaque composition and drive the development of more informative imaging techniques, they say. "Nuclear imaging has the potential to provide invaluable information on the cellular, meta...

New HIV co-factor found

...as not previously associated with HIV. The authors show that HIV infection could be prevented by directly blocking annexin 2 or by eliminating it from the cell surface. Although they do not know exactly how annexin 2 helps HIV get into the cell, Wahl's group now shows that a surface component on HIV that...

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(Date:8/28/2014)... America (ESA) is pleased to announce the selection of ... Society. Honorary Membership acknowledges those who have served ESA ... the affairs of the Society that has reached an ... the ESA Governing Board and then voted on by ... the Awards Ceremony at Entomology 2014, ESA,s Annual Meeting ...
(Date:8/28/2014)... than traditional cigarettes, but still release toxins into ... USC. , Scientists studying secondhand smoke from e-cigarettes ... harmful particles, with close-to-zero exposure to organic carcinogens. ... in second-hand e-cigarette smoke were found to be ... levels of polycyclic aromatic hydrocarbons cancer-causing organic ...
(Date:8/28/2014)... MARC (Maximizing Access to Research Careers) Program has ... Society of America,s 27th Annual Mouse Molecular Genetics ... in Pacific Grove, California. These awards are ... doctorates and scientists from underrepresented groups into the ... encourage the participation of young scientists at the ...
Breaking Biology News(10 mins):Fred Baxendale selected as Honorary Member of the Entomological Society of America 2Second-hand e-cig smoke compared to regular cigarette smoke 2
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