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Tag: "different" at biology news

DNA Molecules Used To Assemble Nanoparticles

...possible to build a single dendrimer carrying many different kinds of molecules such as contrast agents and dru... Youngseon Choi built nanoparticle clusters of two different functional dendrimers, one designed for imaging and the other for targeting cancer cells. Each of th...

Wisconsin scientists grow critical nerve cells

...icate indefinitely and develop into any of the 220 different types of cells and tissues in the body. But resea...cells] to change step by step, where each step has different conditions and a strict window of time," says Zhang. "Otherwise, it just won't work." To differenti...

Association of herpesvirus with lung disorder questioned

... of primary pulmonary hypertension in Japan may be different from that in the United States. The sensitivity and methods of the tests used in each study may also have differed. "We hope that our results provide scientists with another perspective on the potential causes of primary pulmonary hypertension," Dr....

Man and mouse share genome structures

...ome, yet is completely different. Muscle cells are different from neurons. They are different because different genes are on." Many scientists believe changes in the regulatory scaffolding surr...

Molecular biology fills gaps in knowledge of bat evolution

...ere bats originated, when they diversified and how different bat families are related to each other," Springer said. "It also quantifies the fraction of the fossil record that is missing for bats." The team, using DNA sequencing, analyzed data from portions of 17 nuclear genes from representatives of all bat ...

A new mechanism of regulating RNA degradation

...using a weapon or tool is finding it. And it is no different for cell biologists and clinicians who want to take control of gene expression in cells to create therapies to treat disease. While cells have a variety of ways to control gene expression, the trick for players in this game is to recognize them amids...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

...using a weapon or tool is finding it. And it is no different for cell biologists and clinicians who want to take control of gene expression in cells to create therapies to treat disease. While cells have a variety of ways to control gene expression, the trick for players in this game is to recognize them amids...

UAB scientists discover the origin of a mysterious physical force

...h the cause of a repulsive force occurring between different electrostatically charged molecules, such as DNA and other biomolecules, when they are very close to each other in aqueous media. This force became know as hydration force. Jordi Faraudo, a researcher for the Department of Physics at the Universitat...

Researchers discover way to make cells in the eye sensitive to light

...gsensitive to blue light, melanopsin uses light at different wavelengthsto regenerate itself. In some forms of hereditary blindnessphotoreceptors are lost entirely, but the retinal ganglion cells, thecells which signal to the brain, remain intact. The researchers believethat by activating the melanopsin, these...

W.M. Keck Foundation funds study of friendly microbes

... gut as "a bioreactor programmed with at least 800 different species of bacteria." "Fortunately, these microbes...the composition of gut microbial communities among different people may be an important factor that influences predisposition to obesity and obesity-related diso...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...ccur above that temperature.A combination of three different clues led researchers to conclude thathydrogen was...es hydrogen in the gut. It makes me wonder howmany different kinds of microbes out there are metabolizing hydrogen inextreme environments."Instead of relying on ...

Growth in the sea comes down to a struggle for iron

... to return to the Pacific in 2007, but they have a different destination in mind. Work by Japanese and Canadian researchers has already shown that the consequences of iron additions may vary from the eastern to the western North Pacific. Even with additional iron, large phytoplankton cells in the east do not a...

New, automated tool successfully classifies and relates proteins in unprecedented way

... curators, and this is often notconsistent between different curators," said Murphy.Murphy and his colleagues a...ways to "train" a general system that willwork for different cell types....

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

...ed and acted the same. There was nothing outwardly different about them." The two groups of offspring ate the s...lin resistance, not a secretion problem. Something different was happening in the experiment's low-birth-weight mice. Did prenatal undernourishment cause the pa...

Fox Chase Cancer Center scientists identify immune-system mutation

...key branch points at which cells choose one of two different pathways, going on to become helper cells or kille...goal is to understand how T cells specialize to do different jobs. Commitment to the helper or killer lineages correlates precisely with the restriction of the ...

Neuronal 'traffic jam' marks early Alzheimer's disease

...d brain sections taken at autopsy from humans with different stages of Alzheimer's disease. They detected the same kinds of swelling in those samples that they had seen in the mice. "This was a small, initial neuropathological study, but we believe that it is significant," said Goldstein. "We found in the earl...

Termites feed through good vibrations

...ould be likened to a form of sonar. Dr Evans says different termite species are known to prefer eating particular sizes of wood; certain drywood termites prefer small blocks, presumably to avoid competition. With Professor Joseph Lai and his students from the University of New South Wales at the Australian De...

Mouse brain cells rapidly recover after Alzheimer's plaques are cleared

...swellings, they arefilled with abnormal amounts of different types of cellular parts knownas organelles," Holtzman explains. "Normally any given segment of anerve cell branch would have only very small amounts of theseorganelles."Nerve cells move organelles along their branches as a part of theirregular functi...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

...hese shared metabolic strategies are substantially different from human enzymes, making them potential targets of inhibitors that could form the basis of new drug therapies," says TIGR President Claire M. Fraser, who supervised the Institute's role in the project. E. histolytica is a voracious predator of bac...

Key molecule in plant photo-protection identified

...swellings, they arefilled with abnormal amounts of different types of cellular parts knownas organelles," Holtzman explains. "Normally any given segment of anerve cell branch would have only very small amounts of theseorganelles."Nerve cells move organelles along their branches as a part of theirregular functi...

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