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Tag: "related" at biology news

$6.5 Million Grant for Microarray Center at Yale School of Medicine

...ent and length of flower-bearing branches in corn, related cereal crops, and ornamental grasses. The study in...of the journal Nature. "We've shown that corn and related grasses have either none, some, or a lot of ramosa1 gene activity, and that these different levels o...

Tufts researchers shine light on firefly mysteries

... evidence suggesting that the preferred males in a related species (Photinus greeni) do not provide any such benefit. "It's possible that the male flash pattern may have evolved to provide misinformation," Lewis explained. "Although males and females both try to maximize their reproductive output and contri...

Can our genes tell the story of our divergence?

...strongest evidence for positive selection in genes related to immune defense. Immunity 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 t...

Disease diagnosis, bioengineering covered at state nano summit

...and development executives, as well as students in related disciplines. UH is a co-host of the event. Held from 8:30 a.m. to 6:30 p.m. at the Edwin Hornberger Conference Center in the Texas Medical Center in Houston, the Nano Summit will provide presentations, a poster session and networking opportunities t...

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

...e genes Sánchez Alvarado and his team silenced are related to human genes associated with diseases, such as ataxia (inability to coordinate muscular movements), bradyopsia (slow vision), and cancer. Only eight of those genes have a corresponding knockout gene in mice. This means researchers may be able to us...

Study shows how retinoic acid enters a cell's nucleus

... mechanism opens a new door for future research on related compounds. The finding has important implications for the fight against cancer and other diseases. The research, which appears in a recent issue of the journal Molecular Cell (Vol. 18, No. 3), explains for the first time how the cancer-fighting vita...

Gifts from the sea

... have also made significant research breakthroughs related to the horseshoe crab's blood. The crab's amebocyte cells clot in response to bacteria, enabling the development of tools used to test humans, drugs, and sterile environments for toxins. Skate (Raja erinacea): Human retinas have two kinds of light-s...

Compound might defeat African sleeping sickness, clinical trial beginning this month

..., has an exclusive, worldwide license to DB289 and related compounds developed by the UNC-based scientific consortium for African sleeping sickness and other devastating diseases such as TB, which together affect millions of people annually," Tidwell said. "Besides DB289, several potential drug candidates in...

Why are coyotes getting more aggressive?

...eported in California. Coyotes, which are closely related to dogs and wolves, are ubiquitous in North America, but they rarely have been a danger to humans. Fearful of being hunted and trapped, these large carnivores have typically stayed in wooded areas and away from humans. But now that coyotes have start...

Gene expands malaria's invasion options

...invasion of red blood cells by P. falciparum and related parasites. The second gene, EBA165, did not appear to produce a functional protein, and the scientists suspect it had been activated only because it was physically adjacent to PfRh4. Using a second, more quantitative approach, the team found tha...

Pinpointing the cause of a neurodegenerative disorder

...ers knew that SCA1, Huntington's disease and other related disorders arise because of a "genetic stutter," in which a mutation causes a particular gene sequence to repeat itself. These abnormal genetic repeats cause the resulting proteins to contain unusually long repetitive stretches of the amino acid gluta...

Spiders help scientists discover how muscles relax

... encode several muscle proteins--some of which are related specifically to the myosin that Padron studies. ...

'Punctuated' evolution in the human genome

...mparisons of pericentromeric regions among closely related primates suggests extraordinary dynamism, where duplication, deletion, and rearrangement of large segments of DNA occur at an unprecedented scale. Eichler's group performed a comprehensive structural and evolutionary analysis of a 700-kilobase (Kb) ...

Endocannabinoids ?the brain's cannabis ?demonstrate novel modes of action to stress

...tem might be important." Sabatier noted that most related experiments are carried out in rats, "but we think that the basic ways in which these circuits work is very similar in all mammals. These brain circuits are very old in evolutionary terms, and they govern behaviors that are of fundamental importance ...

Looks matter to female barn swallows

...lassic studies have shown that in the very closely related European barn swallow ( H. rustica rustica) , males with long tail feathers attract more mates. Although many previous studies have investigated mating patterns in birds and other animals, this is the first study of its kind to meticulously rule out...

Scientists show that tick-borne flaviviruses use a novel mechanism to evade host defenses

...c fever (found in western Siberia) and the closely related Kyasanur forest disease (found in western India). "These diseases are spread by the same tick that carries Lyme disease in the U.S.," says Dr. Bloom. "So, the fact that West Nile virus first appeared or emerged in the U.S. in 1999 should warn us abo...

Researchers uncover E. coli's defense mechanism

... strain of Escherichia coli, which is very closely related to Salmonella bacteria. The pathogenic forms of E. coli and Salmonella are usually transmitted to humans through undercooked meat, unwashed vegetables and cross contamination from surfaces on which these foods were prepared. Infections from either o...

Secrets to antibody's success against West Nile Virus surprise scientists

Insights may advance vaccines for related viruses including dengue fever. A monoclonal antib..., we are now developing therapeutic antibodies for related viruses that also are effective at stopping the process of infection after the virus attaches to hos...

Analysis of flower genes reveals the fate of an ancient gene duplication

...day gene to look at neighboring genes in different related species. Genes derived from a common ancestral gen... stamens and carpels. AG and PLE are very closely related genes, and they clearly have nearly identical function, suggesting that they are derived from the sa...

Virologist finds contagious equine flu in dogs

...ken for common "kennel cough," a bacterial disease related to pertussis (whooping cough) in children. Neverth...asts a few weeks, although 1 to 5 percent die from related hemorrhagic pneumonia. From January to May 2005, outbreaks occurred at 20 racetracks in 10 states (F...

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