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Tag: "clues" at biology news

Adult stem cells aid recovery in animal model of cerebral palsy

... in the divergent regions should yield interesting clues to the identity of genes that drive speciation, and the mechanism by which they do so. This is a significant finding in the field of speciation research: in terms of methodology, this study shows that DNA microarrays can be used to identify regions ...

Islands in the Genome Promote Speciation

... in the divergent regions should yield interesting clues to the identity of genes that drive speciation, and the mechanism by which they do so. This is a significant finding in the field of speciation research: in terms of methodology, this study shows that DNA microarrays can be used to identify regions ...

New understanding of regeneration gained by Forsyth scientists

...e research with the flatworm, planaria, offers new clues for understanding restoration of body structures. Researchers at The Forsyth Institute have discovered how the worm's cells communicate to correctly repair and regenerate tissue. Forsyth scientists have found that gap-junction (microscopic tunnels d...

How Fruitflies Know It's Time for Lunch

...d at different levels in klu mutants might contain clues about the neural circuitry modulating feeding behavior. Using microarrays, Melcher and Pankratz discovered that mutant fly larvae overexpress the hug gene, which is known to encode at least two neural proteins related to growth signaling. The resear...

Breaking the mold: Research teams sequence three fungus genomes

...olleagues are now searching these unique genes for clues to A. fumigatus infectivity. It's a complex task. Suspect genes encode proteins involved in central metabolic pathways, cell signaling, cell wall biosynthesis, pigment biosynthesis, and secondary metabolite production. In other words, A. fumigat...

Multiple genes permit closely related fish species to mix and match their color vision

... Great Lakes of Africa, researchers have uncovered clues to understanding how the components of color vision can undergo change over a relatively short period of evolutionary time. The work is reported by James K. Bowmaker of University College London, Karen L. Carleton of the University of New Hampshire,...

Bacterial protein mimics host to cripple defenses

...at the molecular level. "We had some biochemical clues to what AvrPtoB was doing, but getting the three-dimensional crystal structure was really key," Martin explained. To find that structure, Martin and Abramovitch worked with collaborators at Rockefeller University. The structure of AvrPtoB revealed th...

Ancient anthropoid origins discovered in Africa

...f tiny teeth and jaws, whose shapes yield critical clues about the species whose mouths they once occupied. For example, a tooth root from the species Biretia megalopsis is truncated, indicating that it had to make room for the larger eyesocket of a nocturnal animal. "These finds seem to indicate that Bir...

Getting an evolutionary handle on life after reproduction

...e years, biologists have searched for evolutionary clues to this extended lifespan. What role, if any, does natural selection play in the evolution of the postreproductive lifespan? For natural selection to shape the twilight years, postreproductive females should contribute to the fitness of their offs...

War on terror meets war on cancer

...f the water in which they were cultured, providing clues to where the bacteria were grown. The method also has been used to track the source of explosives favored by terrorists, and has been proposed as a way to use hair samples from terrorists to determine their past movements, based on isotope ratios in...

Give thanks for the cranberry, say dental researchers

... have discovered that the beverage holds important clues for preventing cavities. A team led by oral biologist Hyun (Michel) Koo, D.D.S., Ph.D., at the University of Rochester Medical Center has discovered that the same traits that make cranberry juice a powerful weapon against bladder infections also ho...

Regenerating worms help elucidate stem cell biology

...latworm. Earlier this year, they got their first clues when they individually turned off 1,065 of the worm's genes, and found 240 that were involved in some aspect of regeneration. Importantly, Sánchez Alvarado noted, 85 percent of these genes are found in the genomes of other organisms, including humans...

Plants reveal a secret and bring researchers nearer a cleaner future

...tudy of photosynthesis in plants could provide new clues by explaining how they absorb almost 100% of the sun-light reaching them, and how they transform it into other forms of energy. Researchers Michael Haumann and Holger Dau, from the Freie Universität Berlin, used the X-ray source of the European Sync...

Customized gene chip provides rapid detection of genetic changes in children's cancer

... tumor samples for specific DNA changes that offer clues to prognosis in cases of neuroblastoma, a common form of children's cancer. Rather than covering the entire genome, the microarray focuses on suspect regions of chromosomes for signs of deleted genetic material known to play a role in the cancer. Th...

NC State researchers redesign life for Mars and beyond

... State University are looking deep under water for clues on how to redesign plants for life deep in outer space. Some of the stresses inherent with travel and life in space - extreme temperatures,drought, radiation and gravity, for example - are not easily remedied with traditional plant defenses. So Dr....

U-M scientists say fused genes trigger the development of prostate cancer

...A yields a map of genetic variation which can give clues to the genetic underpinning of human disease. The current technologies collect genotypes, or information from the individual's two chromosomes. Yet many scientists believe that drilling down to the variations between individuals' DNA at the level o...

California computer scientists double volume of data in NIH biotech repository

...A yields a map of genetic variation which can give clues to the genetic underpinning of human disease. The current technologies collect genotypes, or information from the individual's two chromosomes. Yet many scientists believe that drilling down to the variations between individuals' DNA at the level o...

Biologists Crack Genetic Code for Specialized Spider Silk

... us to better diagnose these patients, it provides clues to key biochemical pathways that can lead to immunodeficiencies.?/p> The study was led by Raif Geha, M.D., and Emanuela Castigli, Ph.D., of the Children’s Hospital Boston. The Boston team found specific mutations in a gene known as TACI, which pl...

US/African project deciphers deadly parasite genome

...hed in this week's Science that provides molecular clues to help develop new ways to treat or prevent East ...iology in humans, and this study has given us some clues to pursue." The genome is also helping scientists who study human malaria, which is carried by a re...

Agreement will speed research on microbicides for women

... us to better diagnose these patients, it provides clues to key biochemical pathways that can lead to immunodeficiencies.?/p> The study was led by Raif Geha, M.D., and Emanuela Castigli, Ph.D., of the Children’s Hospital Boston. The Boston team found specific mutations in a gene known as TACI, which pl...

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