Tag: "missing" at biology news

Study finds direct association between cardiovascular disease and periodontal bacteria

...he influence of the oral pathogens. Conspicuously missing from the debate has been a large, well-designed study that in some way directly evaluates the role of the oral pathogens themselves. To fill this void, the National Institute of Dental and Craniofacial Research launched the Oral Infections and Vasc...

Physicians recommend screening for toxoplasmosis for all pregnant women, newborns

...ly taking a careful history and examination we are missing many pregnant women and their infants who may benefit from treatment," said study co-author Rima McLeod, M.D., professor of ophthalmology and medical director of the Toxoplasmosis Center at the University of Chicago. According to the Centers for Dis...

New system can measure productivity of oceans

...to really take the pulse of the oceans. That's the missing piece of the puzzle."The new approach is based on the premise that the 'greenness' in phytoplankton its level of pigmentation per cell is a reflection of its growth rate, said David Siegel of the University of California, Santa Barbara, the third a...

Tufts-NEMC researchers identify enzyme that activates cancer cell growth and invasion

...nd that the cancer cell itself did not provide the missing protease. We found that the protease was being sec...ncer cell manipulating the host to provide the key missing ingredient, namely the protease," said Athan Kuliopulos, MD, PhD, of Tufts-NEMC's Molecular Oncology...

Proteins link obesity, diabetes; May underlie systemic 'metabolic syndrome'

...roteins that shuttle lipids in the body might be a missing link between obesity and other conditions that tend to go along with the excess weight, including diabetes and fatty liver disease, suggests a new study published in Cell Metabolism. The constellation of obesity and its related symptoms, commonly ref...

Amino acids in nectar enhance butterfly fecundity: A long awaited link

...aining amino acids. These results provide the long missing evolutionary link between costly nectar amino acid production by plants, nectar preferences of and fitness benefits to butterflies. This article by Jovanne Mevi-Schtz and Andreas Erhardt will appear in the April 2005 issue of The American Natural...

Researchers identify target for cancer drugs

...chers at Whitehead Institute now have discovered a missing puzzle piece, a finding that may present drug make...he Sabatini lab report on discovering an important missing piece of the activation process. This missing component, a molecule called mTOR, is a protein that i...

Brain controls robot arm in monkey, University of Pittsburgh researcher reports at AAAS

...rmation from relatively few neurons to fill in the missing signals. The algorithm decodes the cortical signals like a voting machine by using each cell's preferred direction as a label and taking a continuous tally of the population throughout the intended movement. Monkeys were trained to reach for targets....

Scientists find both damage and promise for renewal in devastated Iraqi marshlands

...l. And many key amphibians and mammal species were missing from some areas. At the same time, the researchers reported increases in fish species introduced from other countries, some of those for aquaculture. ""We're really concerned now about the food pyramid for the fish, and the return of the native fishe...

Ancient olfaction protein is shared by many bugs, offering new pest control target

...) of Or83b were expressed in fruit flies that were missing their own version of the gene, the flies' sense of smell was restored, arguing not only that the gene's sequence has been conserved over 250 million years of evolution but that the gene's function in olfaction has also been conserved. Future designs ...

'Blinding' an insect's sense of smell may be the best repellent

...ifferent species into mutant fruit flies that were missing their own Or83b gene to determine if the function of the protein was also conserved. They found that even though the genes were from very different species, these genes from other insects restored the fly's sense of smell. Then they looked closer ...

Plants respond similarly to signals from friends, enemies

... When the researchers studied L. japonicus plants missing the receptors that receive signals from other organisms certain genes in the plant were modified to accomplish this they discovered that the plants failed to respond to signals from both friend and foe, and therefore no changes were viewed in the p...

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

...ceton, have a double dose of IGF2 because they are missing another gene, H19, whose sequence overlaps the reg...ppsala University, Sweden, developed a set of mice missing only the control region for IGF2; their H19 gene was intact. These mice likely mimic the 30 percent ...

Growth in the sea comes down to a struggle for iron

...ron experiments that indicated iron was indeed the missing ingredient. And he went further than that. Since growing plants absorb carbon dioxide, a powerful greenhouse gas, he suggested that natural increases in iron inputs to the oceans during the geologic past may have removed enough carbon from the atmosp...

In the mating game, male wild turkeys benefit even when they don't get the girl

...shown that they are. He is filling in an important missing piece of the puzzle." Kin selection was first proposed by biologist W. D. Hamilton in 1964 to explain cooperation, which goes against the idea that natural selection or survival of the fittest favors selfish behavior. He hypothesized that kin selecti...

Weizmann Institute scientists discover how substitutions are made for injured genes

... protein, or producing defective proteins that are missing bits, a relatively larger amount of the raw material will be left over. Raw material that is sitting around activates a special set of proteins called transcription factors, whose job is to turn on genes. The transcription factors then bind to, and a...

Researchers find three major beetle groups coming up one testis short

...eley -- A surprisingly large number of beetles are missing one of their testes, the male gonads of insects. As far as the researchers who discovered this can tell, the insects are not in any way bothered or impaired by this absence. The discovery is striking because most animals are bilaterally symmetrical,...

UCLA scientists store materials in cells' natural vaults

...harming healthy tissue Enzyme delivery to replace missing or defective enzymes, such as those that cause Tay Sachs disease DNA delivery to correct genetic mutations Timed release of drugs, enzymes and DNA Extracting and imprisoning cellular toxins into the vault Stabilizing proteins in vaults to increas...

Oldest fossil human protein ever sequenced

...n advantage to these primates if this nutrient was missing from their diets regularly. This research opens up the exciting possibility of extracting and sequencing protein from other fossils, including earlier humans, as a means of determining the relationships between extinct and living species, and to bet...

New tumor-suppressor gene discovered

...utant form of the mats gene--this time with a huge missing pie ce of genetic material caused by another transposable element jumping out and dragging lots of material along with it. "With such a deletion of material, this gene is basically gone, so we knew it couldn't possibly function at all," Lai says. B...

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(Date:10/30/2014)... University researchers have developed a suite of technologies that ... humans, which has applications in everything from search and ... "We,ve developed a platform for computer-mediated communication between humans ... for interpreting dogs, behavioral signals and sending them clear ... an assistant professor of computer science at NC State ...
(Date:10/29/2014)... who lose their hair as a consequence of chemotherapy ... improve the scalp cooling technology that prevents hair loss. ... being pioneered by global scalp cooling manufacturing company, Paxman ... biology department of the University of Huddersfield. , The ... who has a background in the pharmacology of cancer ...
(Date:10/29/2014)... factors, both genetic and environmental, have been blamed ... schizophrenia. Some, such as a family history of ... with Toxoplasma gondii , a parasite transmitted ... still viewed with skepticism. , A new study ... epidemiology at the University of Pennsylvania,s School of ...
Breaking Biology News(10 mins):New tech aims to improve communication between dogs and humans 2New technology on the way to aid cancer suffers who lose their hair after chemotherapy 2Penn vet professor investigates parasite-schizophrenia connection 2Penn vet professor investigates parasite-schizophrenia connection 3
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