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Tag: "produces" at biology news

Cloned mice created from fully differentiated cells, a milestone in cloning research

...ing the blastocyst with a fertilized embryo, which produces what biologists call a chimera, or by performing another nuclear transfer using the embryonic stem cells derived from these blastocysts, could "cloned" pups be produced. Even so, other researchers have countered these are not bona fide clones because...

Living view in animals shows how cells decide to make proteins

...ss -- called alternative splicing -- goes awry and produces the wrong proteins, the scientists said. The sc... in the final RNA determine which proteins the RNA produces within the cell. The scissors that do the genetic chopping are, in most cells, proteins called s...

Triple threat: World fin trade may harvest up to 73 million sharks per year

...w Institute for Ocean Science. "This paper, which produces the first estimate based on real data, shows that the actual number of sharks killed is indeed very high but is more likely to be in the order of tens of millions, with a median estimate of 38 million sharks killed annually." Concern about the shark...

New findings could lead to vaccine for severe malaria

...he parasite enters human red blood cells, where it produces proteins that attach themselves to receptors in th... be shifted to the parasite itself, and whether it produces many different surface proteins or if one and the same protein is able to bind to many host receptor...

New clues to how sex evolves

...her during meiosis. This specialized cell division produces gametes, or sex cells, each of which has only one copy of each chromosome instead of the two copies most cells carry. During meiosis a cell replicates and then divides twice, resulting in sperm or eggs with just one set of chromosomes each. For m...

Anticipation plays a powerful role in human memory, brain study finds

...wn as functional magnetic resonance imaging, which produces high-contrast images of human tissue. They began by showing the volunteers two kinds of signals. One was neutral, but the other indicated that some type of gruesome picture was soon to follow, such as explicit photos of bloody, mutilated bodies.Thirt...

Tiny Tampa Bay fish key to evolution of immune system

... The inch-long spineless fish, called a lancelet, produces a key immune system protein that is similar to but much hardier than the version found in people. The bay waters are a microbial soup teeming with microorganisms, yet the worm-like bottom-feeder is remarkably adept at standing up to the bacterial, vi...

Comments, experts and background on the 2006 Nobel Prize in chemistry

...s DNA's information out to cellular machinery that produces proteins. Transcription is critical for life. If it stops, cells no longer produce enzymes and other proteins essential for life and health. With no new protein synthesized, an animal will die within days. Death can also result from the ingestion o...

Road-crossing in chimpanzees: A risky business

...s--of protective "socio-spatial" organization that produces flexible, adaptive, and cooperative responses by a group of individuals facing risk. The research is reported by Kimberley Hockings and James Anderson of the University of Stirling and Tetsuro Matsuzawa at the University of Tokyo and appears in the S...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

... acute bacterial infection of skeletal muscle that produces an abscess within the muscle. Myositis is also a muscle infection, but does not form an abscess. The study authors investigated the 45 cases of pyomyositis or myositis in otherwise healthy children who were hospitalized at Texas Children's Hospital f...

Fast test for low blood flow in dogs detects early heart trouble

...tion equipment like 64-CT scanners. The device produces precise, 3-D, diagnostic pictures within five to 10 seconds by quickly passing X-rays through the body. The resulting digitized signals, called "slices" - and there are 64 - are then reconstructed by a computer and used to build a three-dimensional ...

Protein splicing upsets the DNA colinearity paradigm

...siological function of 'antigen processing,' which produces antigenic peptides; the 'red flags' that mark cells for destruction by the immune system. The immune system attacks 'foreign' cells - be they tumor cells, virally infected, or donated by another person - when T lymphocytes recognize antigenic pep...

Computer scientists unravel 'language of surgery'

...are studying the mechanics of movement to see what produces the best possible performance. By understanding the underlying structures, we can become better at what we do. I think surgery's no different." ...

MIT material stops bleeding in seconds

... a completely new way to stop bleeding; whether it produces a physical barrier is unclear at this time," Ellis-Behnke said. The researchers are confident, however, that the material does not work by inducing blood clotting. Clotting generally takes at least 90 seconds to start, and the researchers found no...

Longer-lived rodents have lower levels of thyroid hormone

...hyroid key to metabolic rate The thyroid gland produces thyroxine (T4) which converts to triiodothyronine (T3) in the presence of iodine. T3 is the active component of T4 and is the key hormone in regulating metabolism, Pinto said. When an animal becomes cold, for example, its body converts T4 to T3 to sp...

End of deforestation in view? Experts advance new way to size up global forest resources

... biomass, and captured carbon within the area. It produces an encouraging picture of Earth's forest situation and may change the way governments size up their woodland resources in future. Devised by six distinguished international academic and non-governmental experts in forestry science and economics,...

Artificial cornea offers better results for infants, some blind patients

...th traditional corneal transplant, this new device produces no astigmatism and a clearer image." Aquavella evaluated the recent progress in an unusual study, with himself serving as the common point as he compared the outcomes of 31 patients who received artificial corneas in procedures he performed from 1...

Sandia researchers discover way to see how a drug attaches to a cell

...drug attaches to a cell through a new process that produces novel hollow platinum nanostructures. The research will appear as a paper in an upcoming issue of the German chemical journal Angewandte Chemie Int. Ed. In advance of publication, it is featured as a short "hot paper" on the journal's web site. Sa...

Technology exists to keep E. coli out of food

...a team of Russian scientists, is unique because it produces a pH-neutral solution that won't cause deterioration or off-flavors when sprayed on food. The system is environmentally friendly; its only outputs are water and salt. Feirtag sees great potential for the system and is working to get it into the foo...

Developing uses for sugar-cane bagasse: Biotechnology applied to the paper industry

...ics of this fungus, Pycnoporus cinnabarinus, which produces laccase naturally. This enzyme breaks down the lignin in the fibres of bagasse used as substrate in these trials, transforming this waste product, after mechanical refining, into paper pulp. As the lignin progressively disappears, the pulp obtained b...

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