Tag: "nutrients" at biology news

Leader in cancer treatment and prevention research honored

... in the laboratory those basic chemical agents and nutrients with the potential to treat or prevent cancer, and then to take them through pharmacological development and on to clinical trials in patients. "Dr. Alberts is a true pioneer in translational cancer prevention research," said Margaret Foti, Ph.D., M...

Punching the timeclock of life

...jority of a population dies prematurely to provide nutrients for the sake of a few individuals who have acquire...d die long before they have to in order to provide nutrients for 'mutants' generated within their own population. Thus, billions of organisms die early so that a...

Popular Science announces Third Annual 'Brilliant 10'

...truths about everything from the way cells consume nutrients to the growth rates of trees to how deforestation could affect global levels of carbon dioxide. Claire Gmachl , 37, Princeton University (Princeton, NJ) for her work in the field of laser physics. Once perfected, Gmachl's tiny, ingenious devices-...

New way to protect brain from stroke damage

...ommon form, a blood vessel that carries oxygen and nutrients to the brain becomes blocked by a clot. As a result, part of the brain fails to get the oxygen it needs, a condition that damages nerve cells. The effects of a stroke, which can include paralysis and problems with language and vision, depend on sever...

Understanding celiac disease

... small intestine that interfere with absorption of nutrients from food. When people with celiac disease eat foods containing gluten, a major protein in wheat, rye, and barley products, their immune system attacks and damages the lining of the small intestine. Development of this disease has been linked to the ...

New research suggests link between maternal diet and childhood leukemia risk

...s well as expectant moms, understand that critical nutrients in vegetables, fruit and foods containing protein, such as meat, fish, beans and nuts, may protect the health of their unborn children." The few studies that have been conducted on maternal diet and childhood cancer risk looked only at specific...

NASA satellites detect 'glow' of plankton in black waters

...hich are used as fertilizers in agriculture. These nutrients cause blooms of marine algae called phytoplankton....ches. Although satellites cannot directly measure nutrients in lakes, rivers, wetlands and oceans, remote sensing technology measure the quantities of plankton....

OneWorld Health compiles comprehensive state of infectious diarrhea treatments, potential solutions

...ly to children to replace both the water and vital nutrients (electrolytes) lost in diarrhea; it does not treat the diarrhea itself. Parents, out of frustration that ORT does not reduce stool output, purchase antibiotics for their children, which are almost always ineffective and disturb normal intestinal bal...

Carnegie Mellon scientists reveal ways of studying, resolving PCB contamination in US rivers

...inated rivers. Future studies that modify sediment nutrients from contaminated sites with little or no bacterial activity also could reveal ways to coax poor PCB-eaters into developing healthy appetites for these toxins. Ultimately, PCB-digesting microbes will need to be examined in each contaminated lake or r...

PCB breakdown in rivers depends on sediment-specific bacteria, find Carnegie Mellon U. scientists

...ineering. The team is exploring whether different nutrients or other factors could account for the variation b...ife-forms in sediments. Future studies that modify nutrients in sediments from contaminated sites with little or no bacterial activity also could reveal ways to ...

Jefferson Lab detector technology aids development of cystic fibrosis therapy

...m reaching the intestines to break down and absorb nutrients from food. Current treatments are prolonging lives but haven't conquered the disease; most patients eventually succumb to lung disease....

For Africa's valuable mahoganies, it's the soil, stupid

...oils those with a particular combination of plant nutrients - and were restricted to these sites within the forest. Previous analyses of soils with respect to the distribution of these and other tropical tree species have looked at things like topography to infer soil conditions, completely missing the impor...

Excess levels of nitrogen, phosphorus linked to deformed frogs

... levels in wet ecosystems. Higher levels of these nutrients cause a profound impact on the food web that imperils the frogs' existence. A warm gun "What we have is a warm gun, not yet a smoking one," said Jonathan Chase, Ph.D., assistant professor of biology at Washington University in St. Louis. ...

You are what you eat: New insight into autophagy

...lization technique. The Drosophila fat body stores nutrients in much the same way that the liver and fat tissue do in mammals. Starvation and inhibition of PI3K or TOR induced autophagy in the Drosophila fat body. "While the molecular machinery of autophagy is largely conserved from yeast to mammals, the contr...

New hypoxic event found off Oregon coast

...ocean shore. Normally, upwelling is valuable - the nutrients it brings up are critical for much marine life and key to productive fisheries. But in the hypoxic events, the upwelled water is coming from the sub-Arctic, and is even colder, more nutrient rich and lower in oxygen than usual. Upwelling-favorable s...

LBP-1a gene mutation linked to disruption of normal fetal development

...ime during which they survive by exchanging gases, nutrients and toxic breakdown products of food with their ou...rmation of critical blood vessels needed to obtain nutrients from the mother's blood while expelling waste products. Other authors of this paper are Amy McEwen, ...

Pocket gophers serve as 'ecosystem engineers'

... said Reichman. "These produce a complex mosaic of nutrients and soil conditions that results in vertical mixing (through burrow collapse and moving deep soil to the surface) and horizontal patchiness (in relation to the hollow burrows, refilled burrows, surrounding soil matrix and surface mounds)." This resea...

Save the rainforest - eat a tree

...d not survive on white sand soil due to inadequate nutrients and water. "People have thought soil alone is enough to explain why you get two different communities of plants growing on those two soil types," says Fine. "But we showed that if it wasn't for their insect enemies, it's possible the same kin...

Study reveals surprising 'remodeling' property of gene regulation process

...rated that the yeast genes required to process new nutrients lost their nucleosomes and were expressed. They also showed that nucleosomes return to genes that need to be turned off when yeast are subjected to less than optimal growing conditions. This chromosomal remodeling discovered in yeast likely is direct...

Brookhaven lab biophysicist F. William Studier wins R&D 100 award

...mechanisms by which bacteria sense the presence of nutrients in their surroundings and select which ones to use. An appropriate mixture of nutrients allows the bacteria to grow vigorously and then, at the appropriate stage of growth, switch automati...

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