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Tag: "suspect" at biology news

Whole-genome study at Johns Hopkins reveals a new gene associated with abnormal heart rhythm

...ndidate genes with known functions that are highly suspect in heart beat rhythm, the team first focused on people who have extremely long or short QT intervals. The researchers used subjects from two population-based studies, about 1800 American adults of European ancestry from the Framingham Heart Study of ...

Contagious obesity? Identifying the human adenoviruses that may make us fat

...ociated with human obesity, leading researchers to suspect that Ad-37 also may be implicated in human obesity...vailable that would quickly identify exposure to a suspect virus, Whigham et al. said. More work is needed to develop such a test, Whigham said. ...

Forgotten by evolution?

...of typical stem cell markers. The researchers thus suspect that mesenchymal stem cells are a heterogeneous group of various, different cells, that have similar characteristics. As was hoped, the scientists, using certain substances, were able to bring the stem cell line to express proteins characteristic of...

The brain is broadly wired for reproduction

...aid. Although it is still early, the researchers suspect that the findings in mice could have implications for humans. "Because humans don't have a vomeronasal system, many have speculated that they may not detect pheromones," Buck said. "But these studies clearly indicate that the main olfactory system, w...

Past experience of pheromones induces dominant courtship behavior in fruit flies

...es adult behavior. Clues caused the researchers to suspect that a key role was played by a chemical signal--a pheromone--carried by adult males during the early encounter. To prove this, the researches used mutant flies that lack the normal adult pheromones, and they covered these pheromone-defective flies ...

NJIT study shows nanoparticles could damage plant life

...articles, the larger is the surface area, which we suspect is what contributes to the growth-slowing interaction between the seeds and the nanoparticles. The small size of the nanoparticles may be changed by the nanoparticles aggregating or clumping together." But what is still not understood, said Watts, ...

Customized gene chip provides rapid detection of genetic changes in children's cancer

...ering the entire genome, the microarray focuses on suspect regions of chromosomes for signs of deleted genetic material known to play a role in the cancer. The investigators, from The Children's Hospital of Philadelphia and Thomas Jefferson University, say their technique may be readily adapted for other ty...

Study provides insight into cellular defenses against genetic mutation

...cruiting enzymes that remove the tail and cap from suspect mRNAs and digest their chains. If nonsense codons are not detected, CBP80 and its partner CBP20 are replaced by another cap-binding protein that renders mRNA immune to further notice by NMD. "NMD is an elegant process that offers a number of target...

Study hints at role of stem cell genes in testicular, breast cancers

...cinoma expressed all four genes. The scientists suspect that expression of the genes may be elevated in other non-reproductive cancers, as well, such as those of the prostate. Studies have shown, says Clark, that OCT 4, which works with NANOG to regulate the capacity of cells to specialize, causes dysplat...

Research casts doubt on circulating stem cells

...h the cells do merge with the defective muscle, we suspect that they remain silent and cannot set off the hoped-for 'muscle programme'." In other words, the bone marrow-derived cells are not converted into functioning muscle fibre. The myth of a circulating jack of all trades The reason is probably that in...

North & South American researchers find architectural abnormalities in T. cruzi ribosome

...rret and its spire is unknown, but the researchers suspect the function will be as unique as its architecture. They speculate that it may have something to do with the 39-nucleotide leader of the mRNA that the parasite's ribosomes must process. The spot where the ribosome binds to the mRNA, for example, is r...

Elusive salamanders have role in developing new sampling models

...with the existing program, which includes sampling suspect ponds over the next six to 12 years. Researchers also will compare sampling effectiveness of the different methods, looking closely at cost, and also use several sites to calculate the best approach to estimate juvenile abundance. Meanwhile, Hargrov...

'Gadonanotubes' greatly outperform existing MRI contrast agents

...ters of about 10 atoms each. Wilson and colleagues suspect the clustering is causing the unexplained increases in magnetic and MRI effects that they observed in tests at Rice, at the University of Houston's Texas Center for Superconductivity, and in the Swiss laboratories. More than 25 million patients in t...

Gene loss accelerates aging

...ing and in the other, they can't stop dividing. We suspect that having the right amount of the p63 protein in the right cells at the right time creates a balance that enables organisms to live relatively cancer-free for a reasonably long time," says Mills, who adds that this is the first time the p63 gene ha...

Genetics links whale to two different ocean basins

...r colleague, Dr. Howard Rosenbaum of WCS and AMNH, suspect that the whale could have been a three- to four-year old juvenile at the time of the second encounter with researchers. The only other documentation of individual humpback whales moving from one ocean basin to another dates back to when the species ...

Old drug, new tricks: Prospects for slashing the impact of malaria

...fully combat any subsequent malarial infection. We suspect that many toddlers who seem reasonably healthy might actually have low level malarial infections that are eliminated by Fansidar, allowing the immune system to develop to its full potential." WEHI's Dr James Beeson adds, "Most of the 2 million or s...

Research suggests fitness of Florida panthers improved by limited breeding with Texas animals

...an purebreds," the paper also reports. The authors suspect many of the males are killed by older purebred males in the area. Others migrate into areas with "fewer cats but other dangers from human settlement," Pimm said. "Young males get into trouble whatever species they are." Pimm acknowledged the hybrid ...

Marine bacterium suspected to play role in global carbon and nitrogen cycles

...ation-independent, molecular experiments led us to suspect that Archaea could be involved in the marine nitrogen cycle. Subsequently having the organism isolated in the lab allowed us to confirm our suspicions," said David Stahl, professor of civil and environmental engineering at the University of Washingt...

Study shows eutrophic lakes may not recover for a millennium

...ds of years. "If these results are correct, and I suspect that they are, things could get considerably worse," says Carpenter, a UW-Madison professor of zoology and one of the world's leading authorities on freshwater lakes. "The buildup of phosphorus in watersheds is very threatening. Sooner or later it is...

Secrets to antibody's success against West Nile Virus surprise scientists

...uction process blocked by the antibody, scientists suspect that the host cell eventually destroys the virion. Fremont and colleagues, who publish their results in the Sept. 29 issue of Nature, hope to design a new diagnostic system that can determine whether vaccines for West Nile and related viruses unde...

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