Tag: "single" at biology news
Red wine mist? Resveratrol shows potential effects against COPD, asthma, arthritis
...e and explores all of the proposed mechanisms in a single
study." Most importantly, resveratrol "inhibited anti-inflammatory mediator release from human airway epithelial cells." And contrary to earlier conjecture, the Imperial College researchers showed that "resveratrol did not act as an estrogen or gluc...
ASU gets grant to develop high speed DNA sequence reader
...the process and dramatically lowering the costs. A single
slide could provide sequence data about 10 times m...f human DNA that comprises the individual genes, a single
sequencing slide could read out all of the information for genes now known to play a role in heredit...
Research to explore revolutionary gene sequencing: Threading the molecular needle
...tremely rapid, accurate and low cost sequencing of single
DNA molecules. However, a number of significant t...er advantage is that this method can be used for a single
molecule," Lindsay notes. "You could take a piece of DNA out of a cancer cell and get its coding seq...
Stress impairs thinking via mania-linked enzyme
...airment to a reduction in memory-related firing of single
cells in the prefrontal cortex, which was reversible by a PKC inhibitor. Genetic and biochemical studies indicate that PKC may also be overactive in the brains of patients with schizophrenia. Antipsychotics, which are used to treat bipolar disorder ...
Wistar study demonstrates heritability of non-genomic information
...o restrict, the activity of distant enhancers of a single
promoter. Intriguingly, however, they also found that while the PTS required the insulator to target its designated promoter, the insulator could then be removed from the system without effect: With the PTS alone, no activity was seen. With the PTS a...
Who laid the first egg?
...animals in the first stages of development from a single
cell to only a few dozen cells. "The cellular preservation is amazing," says Xiao, assistant professor of geosciences at Virginia Tech. But what kind of adult would these ancient embryos have hatched into? In 2000, Xiao's team reported the discovery ...
Hurricane Ivan helps student study sinkholes
...e array. Nearly 200 measurements are taken using a single
array. "If you know the voltage and current, you can calculate the resistance," Schwartz said. Different degrees of electrical resistance allows him to identify water, rock, soil, and voids to a depth of about 15 meters and create a model of the sub...
Plentiful fossils of dinosaur contemporary allow population study
...at to find even a partially complete skeleton of a single
multi-ton animal is rare. Meanwhile, the Virginia Museum of Natural History has scores of fossils of Tanytrachelos ahynis, a 12 to 18-inch reptile that also lived millions of years ago, at the same time as the earliest dinosaurs. Tanytrachelos is a ...
Scientists raise concerns about second wave of 'mad cow' prion infection
...r how many of these people may be blood donors. A single
vCJD-infected blood donor has the potential to amp...ter, which reduces both leukocytes and prions in a single
step, is expected to be introduced commercially in Europe early next year followed by submission to ...
Research confirms that vCJD prions can be removed from blood
...-- cell-associated and non-cell associated -- in a single
step. About 60 percent of prion infectivity in blood resides in leukocytes (cell-associated) and about 40 percent in plasma (non-cell associated). The new filter also has an affinity to all types of prions including aggregated, denatured and normal...
Growth factors confer immortality to sperm-generating stem cells
... additive process allowed them to determine that a single
growth factor, GDNF, was vital for promoting a signal-pathway that allowed the cells to multiply in culture. GDNF, the glial cell line-derived neurotrophic factor, was originally identified as a survival factor for neurons in the brain. GDNF was als...
Tiny paddle oscillator senses the mass of a virus
... similar devices were used to detect the mass of a single
bacterium, is reported in a paper, "Virus detectio...vibrates at a lower tone than a thin, light one. A single
one of these silicon paddle weighs about 1.2 picograms, and vibrates at frequencies in the neighbor...
Scientists find acid rain an unlikely ally in the battle against a greenhouse gas
...substantial oxidation, natural wetlands remain the single
largest source of methane emission accounting for about one third of the global annual total methane. "It's a complicated process because multiple factors at microscopic to global scales interact in these processes," said Elaine Matthews, a scientis...
Norman D. Newell to receive Legendary Geoscientist Award
...brate Paleontology. These books still serve as the single
most important reference on fossil bivalve mollusks. Additionally, he applied pioneering work on modern carbonate sediments to a seminal study of the west Texas Permian reef complex. Newell began his career in 1929 as an assistant geologist at the Ka...
A new target for control of obesity
... it is active in multiple pathways or focused on a single
pathway remains to be seen. In recent years, in vitro experiments suggest that Shp2 plays a role in regulating the protein leptin. Leptin, produced in fat cells, is a hormone that regulates body weight, metabolism, and reproduction. The primary ac...
NYU team develops enhanced algorithm for detecting changes in cancer genomes
...riations in cancerous and non-cancerous genes in a single
framework. Mishra's team, which forms NYU's Bioinf...genomic technology for mapping and sequencing with single
molecules, models of genome evolution, and computational and systems biology models of biological pr...
Genetic variant linked to weakened heart pumping
...jection fraction. The polymorphism is caused by a single
alteration in one DNA base pair at a single
location on the PPAR gene. In this instance, a guanine (G) is replaced by a cytosine (C). A patient ...
Sex-determining genes of infectious fungus resemble human Y chromosome
...formans exists in two mating types determined by a single
genetic locus. Earlier work found that this sex-de...cipients and those with HIV/AIDS, Heitman added. A single
fungal mating type spurs the vast majority of all C. neoformans infections, he explained, suggesting...
Reassuring findings from first study on sperm donor identification
... 40% were the children of lesbian couples, 38% had single
mothers and 21% had heterosexual-couple parents. T...g other children with the same donor; Those from single
mother households were most positive about their DI origins; The presence of two parents, whether...
Joslin and Stanford researchers find key clues to muscle regeneration
... -- the precursor to new muscle growth. In fact, a single
cell from this subset could alone generate a sizable colony of new muscle cells. "Identifying this precursor of new muscle cells gives us new research tools for future studies, including those in humans," said Dr. Wagers. "As we learn more about the ...
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