Tag: "single" at biology news
National study finds second cesarean section safer than normal delivery
...who had had a cesarean section and were carrying a single
child 45,988 women in all. Of those, 17,898, or 38.9 percent, elected to try normal delivery, and 15,801, or 34.4 percent, elected a second cesarean. Of the rest, 9,011 had medical reasons to have a second cesarean, and 3,276 were already in labo...
Science's Breakthrough of the Year: Salty, acidic soup could have supported life on Mars
...f how to chill the two basic types of atoms into a single
quantum state or "condensate" under their belts, researchers got down to probing these strange forms of matter in 2004. They learned how condensates' behavior changes as atoms grow further apart, and they created a solid condensate, complementing ear...
Hummingbirds lose power at high altitudes
... weight," Altshuler explained. "This gives us in a single
test their maximum lift, because they go as high as they can trying to escape. And then they tend to hover briefly, a second or less, and at that moment, we get a snapshot of them with their muscles working as hard as they possible can." ...
MIT creates new model of cancer syndrome
...ec. 17 issue of Cell. The research shows that a single
point mutation in the tumor suppressor gene p53 yields a mouse that develops a broad tumor spectrum that is reminiscent of LFS. Although LFS is a rare genetic disease, affecting fewer than 400 families worldwide, the p53 gene is also very commonly m...
New technique provides insights into gene regulation
...rrangement of samples of DNA. An experiment with a single
DNA microarray can provide researchers information on thousands of genes simultaneously a dramatic increase in throughput from the era when only one gene could be studied at a time. The new system developed by the U of T team enables accurate measur...
Essential oils could help to stamp out MRSA
...m with current treatments is that they are made of single
compounds which MRSA relatively quickly becomes resistant to, so treatment is only successful in around 50% of cases. "While a wide range of products currently exist to help prevent the spread of MRSA these are often unpleasant for patients as their ...
Cells don festive holiday colors
...k the effects of multiple genetic alterations in a single
cell. Tsien and his colleagues at the University o... proteins that are "monomers" that consist of only single
protein units. Fluorescent proteins found in nature with yellow to red colors are invariably four-un...
Immune system contributes to evolution of a new fluorescent protein
...d that SHM could be induced in B cells to repair a single
mutation in a non-antibody gene. "This finding hinted that the process might be useful for generating multiple mutations," he said. "But it's like taking a perfectly typed manuscript, introducing one mistake, and giving it to a million bad typists to...
Inexpensive, mass-produced genes at core of synthetic biology advances at UH
...rogram the chemical synthesis of entire genes on a single
microchip. Xiaolian Gao, a professor in the depa...indings on how to mass produce multiple genes on a single
chip are described in a paper titled "Accurate multiplex gene synthesis from programmable DNA microc...
'Jumping gene' helps explain immune system's abilities
... to build many different proteins from a specific, single
set of instructions -- the key to recognizing a million immune-stimulating proteins. But until now, no jumping gene was known to behave just right. Writing in the Dec. 23 issue of Nature , the researchers show that a jumping gene called Hermes, stil...
Needling chromosomes yields insights into cell division
...g cell so that each new "daughter" cell contains a single
copy of each. The same basic process operates in normal cell division, called mitosis, as well as the proliferation of sperm and egg cells called meiosis. "Chromosomes in mitosis and meiosis have to be held together, because otherwise they don't atta...
UGA partners with U of Pennsylvania for bio-defense and infectious disease research project
...a to develop a "virtual database" that serves as a single
access point to genomic and related information ab... developed to facilitate database construction for single
organisms. However, as more genomes are sequenced, additional information can be gathered by compar...
Healthy mix of GI tract microbes are key to preventing allergies and asthma
...cs, which killed their gut bacteria, followed by a single
oral introduction of the yeast Candida albicans. Increased growth of C. albicans in the gut is a common side-effect of antibiotics. After stopping the antibiotics, Noverr inserted ovalbumin a commonly used experimental allergen derived from egg whit...
Ants' 'genetic engineering' leads to species interdependency
...s a combination of genes from the two species in a single
individual. It is not currently known whether the ants benefit from having hybrids do the work, but, as is evident from the researchers' own attempts at selective breeding and genetic engineering, combining genomes is an easy way to produce novel cha...
Federal/private partners launch resource for diabetic kidney disease gene studies
...C) announced today the availability of the largest single
collection of biosamples and data for research on ... HLA DRB1, DQA1, and DQB1 and the -23 insulin gene single
nucleotide polymorphism (SNP). In addition, CDC will distribute samples and conduct research on the ...
$6.7 million for bionic war on disabilities
...erve fibers within a nerve and not just those at a single
depth within the nerve. "This opens up a whole bunch of new applications, one of which is to implant these electrodes in the peripheral nerves of the legs of a paraplegic," says Normann. "We believe that if we implant three Utah Electrodes Array...
Mouse brain tumors mimic those in human genetic disorder
...the most common neurological disorders caused by a single
gene mutation. The disorder can lead to a variety of complications including brain cancer. To supplement their clinical research, Gutmann's team developed a mouse model in which the animals, like humans with the disease, have one abnormal copy of the...
Highlights of January 2005 issue of Biology of Reproduction
... male germline stem cells in vitro: Offspring from single
stem cells." Mito Kanatsu-Shinohara, Shinya Toyoku...ction of modified cells. The colonies derived from single
modified and selected GS cells were expanded and then injected into seminiferous tubules of germ cel...
The giant eagle of Middle Earth
...moa's pelvic area with one foot, and killed with a single
strike by the other foot to the neck or head. The eagle is thought to be the Hokioi of Maori oral history and is recorded in rock art, and artifacts shaped from eagle bone prove that the eagle co-existed with early Polynesians. However, there is no...
Human complexity and diversity spring from a surprisingly few (relatively speaking) genes
...ially the number of gene products generated from a single
gene." A greater understanding of RNA editing, scientists believe, might potentially shed light on evolutionary processes and might lead to new strategies for combatting some diseases. In fact, says Maas, scientists have learned that a type of RNA ed...
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