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Tag: "short" at biology news

Man and mouse share genome structures

...rs of development. "In most of the genome, we see short stretches associated with activated histones," Bernstein said. "However, in the HOX regions, we see huge stretches of genome, many thousands of base pairs in length, that are completely covered by tags." The researchers speculate that these unique ch...

Growth in the sea comes down to a struggle for iron

...as though iron, an essential nutrient, still is in short supply. Why this happens is unclear, but the answer could be that iron sets off a kind of chemical warfare in the marine ecosystem, according to University of Maine oceanographer Mark Wells. And diatoms may not always come out on top. In collaborati...

New Technique for Tracking Gene Regulators

...e a very long time.Scientists have been working on short cuts, but all so far have limits.For example, in o...s. This gives the scientists a largenumber of very short DNA “tag?sequences, which all have the same startsequence of CATG plus 16 additional unknown bases. ...

Combination therapy boosts effectiveness of telomere-directed cancer cell death

... get a bit shorter until eventually they become so short thatthe enzymes that copy DNA for cell division no...omerase, which prevents telomeres from getting too short socells can keep dividing. Telomerase is not used by healthy cells, andhas been identified as a logi...

GATA: a graphic alignment tool for comparative sequence analysis

... get a bit shorter until eventually they become so short thatthe enzymes that copy DNA for cell division no...omerase, which prevents telomeres from getting too short socells can keep dividing. Telomerase is not used by healthy cells, andhas been identified as a logi...

“Nano-scissors?laser shows precise surgical capability

... out, so we don’tdamage anything. The pulse’s very short length makes the photons in thelaser concentrate in one area, delivering a lot of power to a tiny,specific volume without damaging surrounding tissue.?Once cut, the axons vaporized, and no other tissue was harmed.To assure the axons were actually cut...

Scientists decipher genome of fungus that can cause life-threatening infections

...nfection are common, survivalwithout therapy is as short as 7 to 10 days following diagnosis."The major virulence factor of C. neoformans is its extensivepolysaccharide capsule, an elaborate and dynamic structure surroundingthe cell wall that is unique among fungi that affect humans. TheScience study ident...

Poplar trees redirect resources in response to simulated attack

...of the theory. "Because the radiotracer has such a short half-life (20.4 minutes), we can see that more is going to the roots, but not the chemical form it takes there," Ferrieri said. "We will have to do more tests to see what compounds are formed." Ferrieri believes there may be an increase in compounds...

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...wipes," he said. "Our study also showed that, at a short exposure time of 10 seconds, all agents with the exception of handwipes demonstrated a 90 percent reduction of bacteria on the hands." Alcohol-based handrubs were generally ineffective in demonstrating a significant reduction of a relatively resista...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...t of the research team. The protein, called GDNF, short for glial cell line-derived neurotrophic factor, is believed to preserve brain cells and could provide protection against Parkinson's disease. But its use has been debated since trials in humans ended last year without showing clinical improvements. ...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...n it closes the system, it does so for only a very short time. In a stream of air with high oxygen on the other hand, the respiratory system opens briefly and then closes firmly for a long time. "In other words, insects are actively keeping oxygen out and doing it in a way that shows they know how to measu...

NYC's First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention

...of HIV that swiftly advanced to AIDS in just a few short months," said Charles Farthing, MD, AIDS Healthcare Foundation's Chief of Medicine. "Unfortunately, it also seems that few of the AIDS treatments currently available today can be used in his case, as his particular strain of infection appears to be r...

DNA Recombination and Repair—A New Twist to RecA Function

...es and impose direction to the exchange, to bypass short sequence heterogeneities, and to stall replication so DNA lesions can be mended. But how RecA molecules within a filament coordinate and organize their activities to carry out these functions has remained obscure. Cox et al. addressed this problem i...

White blood cell waste disposal system plays critical regulatory role

...lly harmful foreign substances. Neutrophils have a short lifespan and often die via a programmed cell death pathway called apoptosis within a matter of hours. Dying neutrophils are recognized and ingested by cells in the body tissues called phagocytes. Although the specific mechanisms that regulate the pr...

New RNA polymerase discovered in plants

...'t know its template, or what kind of RNA ?long or short ?it makes. Presumably, because it is inherently different from the other RNA polymerases, the rules of activity are different for Pol IV." Pikaard said the Pol IV has a perfect match in rice, the only other plant genome to be sequenced, despite rice...

Gene therapy for Parkinson's disease moves forward in animals

...t of the research team. The protein, called GDNF, short for glial cell line-derived neurotrophic factor, is believed to preserve brain cells and could provide protection against Parkinson's disease. But its use has been debated since trials in humans ended last year without showing clinical improvements. ...

Sexual cooperation: Mating increases longevity in ant queens

...e, ant queens in social species mate only during a short period early in life and store and use the sperm of their mate for the rest of their lives. Sexual offspring are only produced after several months or years of colony growth, during which a sterile worker force is built up in the population. The fact...

Kinovate Life Sciences Launches Nittophase?High Performance Solid Support For Oligonucleatide Synthesis

... all scales in this industry to meet both long and short term objectives of cost savings, and the eventual development of oligonucleotide drugs that are affordable to patients,?stated Dr. Kenji Matsumoto, President of Kinovate Life Sciences, Inc. “Through our strong collaborative relationship with Isis Pha...

Vampire bats keep out of trouble by running

... a horse going from a walk to a gallop over a very short amount of time," Riskin explains. The researchers kept increasing the speed of the treadmill and, much to their surprise, their subjects broke into a run. "They just seem to do everything a little differently from the general bat rule," Riskin says ...

Wisconsin researchers identify sleep gene

...tions were normal sleepers. But these flies became short sleepers when the researchers removed genetic modi...pe to make it ineffective," Cirelli says. "Being a short sleeper is probably not a good thing. We know that the mns mutation affects mortality, but we're not...

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(Date:8/20/2014)... -- Bay Area Lyme Foundation, which aims to make ... applauds new research published in an upcoming issue of ... Diseases . The findings show that ticks that ... the year, making the threat of Lyme disease year-round. ... of Public Health (CDPH) Vector-borne Disease Section and University ...
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Breaking Biology News(10 mins):Lyme disease risk is year-round in Northwest California, according to new study 2Lyme disease risk is year-round in Northwest California, according to new study 3Recovery reversal seen in Oregon study of returning concussed athletes 2Recovery reversal seen in Oregon study of returning concussed athletes 3The internet was delivered to the masses; parallel computing is not far behind 2The internet was delivered to the masses; parallel computing is not far behind 3The internet was delivered to the masses; parallel computing is not far behind 4
(Date:8/20/2014)... HealthDay Reporter WEDNESDAY, Aug. ... has long been an option, but a new study shows ... "The most common reasons women didn,t undergo reconstruction was that ... surgery or they were focused on their cancer treatment," said ... Memorial Sloan Kettering Cancer Center, in New York City. ...
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(Date:8/20/2014)... Aug. 20, 2014 (HealthDay News) -- New research reveals ... role in the global spread of the infectious disease ... from people in Africa to seals and sea lions, ... thousands of years ago, according to an international team ... on the rise again worldwide. This study and further ...
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