Tag: "uptake" at biology news
Variations In The Human Homologue Of A Fruit Fly Gene Are Associated With Mood And Panic Disorders
...sporter superfamily and is involved in thecellular uptake
of tryptophan. Its human homologue gene (hW) has beenmapped to chromosome 2lq22.3. Tryptophan is the precursor for theneurotransmitter serotonin, which has been implicated In the regulation ofmood and anxiety. The locus 2lq22.3 has also been reported...
Genetic Research Boosts Understanding Of Iron's Path Through Body, Diseases Of Iron Metabolism
...ve survivedbecause its phenotype of increased iron uptake
would have been an advantage intimes when iron-rich food was scarce and life expectancy was low. Current treatment for hemochromatosis is bloodletting. Though cheap andeffective, most patients hate having a needle stuck in their arms every mo...
Molecular Effect Of Vitamin E On Plaque Formation Identified
...cells ormonocytes to the arterial lining, promotes uptake
of cholesterol by the cellsand stimulates smooth-muscle-cell proliferation. Also, increased levels ofIL-1beta have been observed in the coronary arteries of patients with heartdisease and have been shown to correlate with the severity of the plaque. ...
Sandia, University Of Montana Researchers Try Training Bees To Find Buried Landmines
...he researchers can study howefficiently the plants uptake
the TNT. "There is very little written in the scientific literatureabout plant uptake
of explosive contaminants," says Sandia'sSusan Bender. "We are conducting new studies to see ifplant...
Report: High Carbon Dioxide Boosts Duke Forest Growth By 25 Percent
...th scientists cautioned that such a high sustained uptake
isactually unlikely, for several reasons. First, the Duke Forest plots where theU.S. Department of Energy-funded study is being conducted are dominated by13-year-old loblolly pines, among the world's fastest growing tree species, attheir peak growing...
Oxygen measurements yield greenhouse clues
...been used to attemptto distinguish ocean and plant uptake
of carbon dioxide from fossil fuelburning. By analysing both oxygen and carbon isotopes over the 20-year period,Mr Langenfelds and colleagues have identified the problem with previous isotopeattempts and reconciled previously conflicting information....
Scientists dissect bacterial crosstalk
...da regulatory region. Four were involved in fucose uptake
or metabolism. But the first coded for arepressor protein, FucR. Hooper purified the repressor and studied FucR mutants.She deduced that the protein halts the transcription of the five genes byinteracting with the common regulatory region. But when f...
Gulf Coast environmental issues -- Tip sheet
...Mexico have detectablelevels of TBT, probably from uptake
or ingestion of sediments, ship yard wastesand TBT-paints used on larger vessels. (J. Sericano - Texas A&M University,College Station, Texas; AGRO 59; Monday, Aug. 23, 2:45 p.m.; Convention Center,Room 218. See page 67 in the final program.) How W...
Researchers pave the way to protein therapy in humans
...otein transduction domain (PTD) to a compoundwhose uptake
by cells could be monitored. The compound was a dye calledfluorescein, which turns green when exposed to fluorescent lighting. It normallydoesn't enter cells because of its size-- 2,000 daltons compared with the 500dalton limit placed on most drugs. ...
Mercury can jump barrier that keeps toxins out of brain
...vous system, thetoxicological significance of this uptake
route needs to be assessed," saidClaude Rouleau, P...tions and jeopardize fish survival. Webelieve that uptake
of metals such as mercury and the subsequent transport alongsensory nerves is a process common to al...
Millennium and the Whitehead Institute identify novel protein important in fat absorption
...mally expressedresulted in a large increase in the uptake
of fatty acids. Inhibition of FATP4with anti-sens...ture modelproduced a proportional reduction in the uptake
of these fatty acid molecules. "The transport of fatty acids from the intestines into the body is a...
Seeing one weapon from a food-borne pathogen
...ested in the process by which thisbinding triggers uptake
of the bacteria by epithelial cells in theintestine. Meanwhile, the next step for Bjorkman and her colleagues is to determine thestructure of invasin and an integrin bound together. Both efforts should offeradditional insight into the way cells talk...
DBI News: Plant microbe interactions and nutrient use to be explored Nov. 16 at UD
...ow plants interact with microbes to facilitate the uptake
of nutrients, such as nitrogen, will be the focus of a Nov. 16 presentation by Janine Sherrier, a plant molecular biologist at the Delaware Biotechnology Institute and assistant professor in the University of Delaware's Department of Plant and Soil S...
Most highly endowed promotion prize for fourteen scientists and scholars
...ling the formation of the receptors regulating the uptake
and storage of iron. Hentze was the first person to conduct a systematic study of metabolic regulation through control of so-called translation, the formation of proteins on the basis of genetic information. These pioneer studies are of great signifi...
Iron-binding compounds produced by marine bacteria have important implications for marine microbial ecology
...e provocative questionsabout the evolution of iron uptake
by marine bacteria. All bacteria need iron to gro...is why studies of the molecular mechanisms of iron uptake
are so important. Scientists estimate that the oceans currently absorb a largefraction of the carbo...
Toxicologists discover traces of diesel exhaust in the body
...and excretion. Major differences in the individual uptake
of the harmful substances are possible even when subjects are exposed to the same quantities. This is because the quantity of air inhaled, hygiene when dealing with dusty objects and metabolism differ in each individual. Air samples taken in Vienn...
Sewage in urban runoff may spur growth of harmful algal blooms
...ents an average of one-third of the total nitrogen uptake
supporting growth of phytoplankton in regions wher...y, urea can represent 60 percent of the nitrogen uptake
at certain times of the year." Phytoplankton serve as the base of the marine food web, but unusua...
Do US ecosystems balance US fossil fuel use?
Atmospheric carbon dioxide gradients suggest that uptake
of carbon dioxide by US forests may balance US fos...ica dominates terrestrial sinks, so that ecosystem uptake
actually amost balances North America1s huge fossil fuel emissions. Researchers led by Prof...
Study points to U.S. as generator of greenhouse gases
...udy clearly contradicts the suggestion that carbon uptake
in North America is balancing our carbon emissions from fossil fuels. We are still part of the problem."...
North America does not absorb as much carbon dioxide as it emits, say Colorado State University researchers and others in current 'Science'
...and release over 1895-1993. They found that carbon uptake
via naturalprocesses came nowhere near matching th...rica so dominates terrestrial sinks that ecosystem uptake
of carbon dioxide almost balancesthe continent's huge level of emissions. The new model and data ind...
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