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Tag: "confirmed" at biology news

Researchers report technique for freezing and preserving genetically enhanced pig embryos

...one litter and eight piglets in another. Testing confirmed that the piglets carried the modified genetic material and that the new gene had altered the fatty-acid content in tissues from the piglets. With ten piglets from 163 frozen and preserved embryos, the researchers feel that their procedure appears to...

Unique soybean lines hold promise for producing allergy-free soybeans

...ated, Hymowitz said. "The lack of the protein was confirmed by more-detailed two-dimensional protein assays," said Eliot M. Herman, a lead scientist at Danforth who probed the seeds with post-doctoral researcher Monica A. Schmidt. "We then isolated the gene responsible for the lesion, and we found there was a...

Study provides first look at the 'birth' of a retina cell

...during gestation. The Swaroop research team also confirmed that when NRL is absent, a rod precursor will change its course and acquire the identity of a cone. "This finding in particular implies the existence of pools of progenitor cells with competence to become either a rod or a cone," explains Swaroop. "W...

NAU researchers chirping over discovery of new cricket genus

... The still-unnamed genus of cave cricket has been confirmed by a San Diego State University entomologist, one of the leading taxonomists on cave crickets. "This discovery could be highly relevant to the management and conservation of cave resources on the monument," Wynne said. Crickets provide a valuable...

RNA found in the cellular centrosome of surf clams

...s' previous work, the presence of RNA had not been confirmed or denied until now," says Palazzo. "Our results show there are at least five specific forms of RNA in the clam cell centrosome which could be related to structure, encoding of proteins, or the regulation of organism development. The specific role or...

Gardenia fruit compound starting point for diabetes therapy

...ver, blinded repetition of the initial experiments confirmed the results every time, he said. Through a series of chemical analyses, the researchers then zeroed in on genipin as the active compound. Genipin, like the extract, stimulated insulin secretion in control but not UCP2-deficient pancreas cells. They...

OHSU study says stem cell 'fusion' occurs in tumors

...th donor and recipient cell markers. A second test confirmed colocalization using a confocal microscope, which can scan a single cell layer of intestinal cells for the presence of both the green fluorescent protein, indicating female donor cells, and an enzyme from the male recipient cells Wong said, "Our pap...

Potato blight pathogenicity explained by genome plasticity

...h gene matches are predicted, only a few have been confirmed by molecular and functional studies. Avr genes are thought to undergo rapid changes to evade detection by plants that possess R genes, which means that many strains of Phytophthora and potato are likely to be evolving at the present time. " P...

Birds going extinct faster due to human activities

... is very important." In experiments, scientists confirmed a cell culture surface molecule called laminin activates a common developmental pathway that is crucial for the generation and survival of particular types of brain cells. The laminin-influenced stem cells are a kind that goes on to generate a br...

Medium is the message for stem cells in search of identities

... is very important." In experiments, scientists confirmed a cell culture surface molecule called laminin activates a common developmental pathway that is crucial for the generation and survival of particular types of brain cells. The laminin-influenced stem cells are a kind that goes on to generate a br...

Discovery could aid fight against cystic fibrosis infection

...nne researchers quickly formed a collaboration and confirmed the hypothesis. They then turned their attention to Hcp1 in cystic fibrosis patients to gain more insight in the role of Hcp1 during infection. Working with cystic fibrosis patients at Children's Hospital Boston, the HMS researchers sought and fou...

Parallel evolution: Proteins do it, too

..., but they were identical." Additional experiments confirmed that the three, independent, parallel amino acid changes were responsible for the change in enzyme function. In both Asian and African colobines, the original, less efficient, gene is not discarded after duplication. But why, Zhang wondered. "The ...

How did cactuses evolve?

...tissues." Recent molecular phylogenetic work has confirmed that Pereskia, a genus that consists of 17 species of leafy shrubs and trees, is where the earliest cactus lineages began. Using field studies and environmental modeling, Edwards and Donoghue found that the Pereskia species already showed water use p...

Hopkins scientists show hallucinogen in mushrooms creates universal 'mystical' experience

...h family members, friends and co-workers generally confirmed the subjects' remarks. Results of a year-long followup are being readied for publication. Psychological tests and subjects' own reports showed no harm to study participants, though some admitted extreme anxiety or other unpleasant effects in the h...

WWF captures first-ever photo of wild rhino on Borneo

...f a population of as few as 13 whose existence was confirmed during a field survey last year in the interior fo...Peninsular Malaysia. On Borneo, there have been no confirmed reports of the species apart from those in Sabah for almost 20 years, leading experts to fear that r...

Carnegie Mellon researchers discover key deficiencies in brains of people with autism

...ize and plan several moves ahead. The experiment confirmed the authors' previous findings that people with au...tiplication are all math skills.") The findings confirmed that the regions of the brain associated with visualization were activated when participants with au...

Dissecting the machinery of nicotine's reward

...same response as in normal mice. The researchers confirmed the importance of the ß2 subunit by using a harmless virus to reintroduce it back into the mice lacking it. They found that reintroduction in a specific region of the brain (the ventral tegmental area; VTA) was sufficient to restore the normal neuron...

Lost in thought: Brain research

...lf-knowledge, among other things. Indeed, the fMRI confirmed that these regions were active during introspection but, when subjects were absorbed in the recognition task, activity in these areas was silenced. (fMRI readings in these areas fell below those measured when subjects were resting.) "It is tempting...

Think fast! Rice undergrad unlocks nerve speed secret

...mation." McNew said the finding is independently confirmed by work published online June 22 by Science magazine. In that study, Columbia University's James Rothman and colleagues created mutant cells with SNAREs on the outside rather than the inside, and they used the cells to show that complexin could inhib...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...VEGFR-3. "The results from this series of tests, confirmed our belief that the presence of VEGFR-3 is the major factor in preventing blood vessel formation in the cornea," says Dana, who says that the discovery will have a far reaching impact on the development of new therapies for eye and other diseases. ...

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