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Oxidants in Biological News

New generation of orthopedic, dental and cardiovascular prostheses

...ical compounds to modify the surface of the common biomedical metals such as titanium. Exposing these metals to selected etching mixtures of acids and oxidants results in surfaces with a sponge-like pattern of nano (ultra small) pits. "We demonstrated that some cells stick better to these surfaces than they d...

Common soil mineral degrades the nearly indestructible prion

...are commonly used in such things as batteries and are among the most potent oxidants occurring naturally in soils, capable of chemically transforming a substanc...s, but in low concentrations," says Pedersen. "They are among the strongest oxidants in soil." The new study, which was led by Fabio Russo of the University o...

Study involving more than 100 scientists provides new insights on green algae

... are still many unknown proteins," Merchant said. "We found many proteins involved in antioxidant function. Photosynthesis generates the most powerful oxidants known in biology; there has to be a protection mechanism because oxidation causes aging. In Chlamydomonas, proteins and lipids can get oxidized if rea...

DNA repair proteins monitored at double-strand break

...aks caused by chemotherapy or radiation. It could also suggest new strategies for enhancing repair of double-stranded DNA caused by radiation, natural oxidants in food or the body and other toxins that can cause disease and aging. "Prior to this work, there was no practical and efficient way to find and ...

Bacteria that use radiated water as food

...omposition of water and formation of sulfate from decomposition of sulfur minerals. Hydrogen gas is highly energetic if it reacts with oxygen or other oxidants like sulfate, as the Hindenburg disaster demonstrated. Firmicutes are able to harvest energy from the reaction of hydrogen and sulfate, allowing other...

Orange, grapefruit juice for breakfast builds bones in rats

...ants. In these studies, both grapefruit juice and orange juice increased antioxidants in the rats' systems," Patil said. "So that is the benefit since oxidants damage bone cells. "There are about 400 compounds in citrus," he said. "So we need to find out which compound in citrus caused this." Patil susp...
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(Date:9/17/2014)... EAST LANSING, Mich. Mutations in the human retinoblastoma ... Now, Michigan State University scientists have turned to fruit ... cancer gene. , In a paper featured on ... Journal of Biological Chemistry , Michigan State University researchers ... mutations similar to those present in the human cancer ...
(Date:9/17/2014)... R.I. [Brown University] After decades of decline, grasses ... saltmarshes. To the eye, the marsh in those places ... that a key service of the marsh coastal ... back but the ecosystem function hasn,t come back," said ... senior author of the study in the journal ...
(Date:9/17/2014)... great deal about complex social behavior by studying nonhuman ... teach too. , With their unusually large brains relative ... in a complex social environment---not merely in a large ... but in a dynamic setting of alliances and competitors. ... dolphins, whales, primates, and social carnivores, like hyenas and ...
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(Date:9/17/2014)... The Food and Drug Administration (FDA) has ... consider: , 1. The appropriate indicated ... 2. The potential for adverse cardiovascular outcomes associated ... ongoing, an informally-organized litigation group subcommittee prepared a presentation ... therapy. Among others, ZKB attorney Michelle L. Kranz and ...
(Date:9/17/2014)... September 17, 2014 StartX , ... 12 companies raising rounds of funding at its Summer ... hundred investors and media, was the first such gathering ... next to the university. The presentations were delivered on ... to StartX-QB3 Labs, a 2,000 square foot life science ...
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(Date:9/17/2014)... News) -- Present-day Europeans are the descendants of ... to a new study. Previous research ... early European farmers. But, a new genetic analysis ... the descendants of Ancient North Eurasians. Nearly all ... ancestral group, researchers from Harvard Medical School said. ...
(Date:9/17/2014)... Steven Reinberg HealthDay Reporter ... uncovered a key factor to explain why antibiotic-resistant bacteria can ... DNA called plasmids appear to be the culprit. They can ... and some carry a gene that makes bacteria drug-resistant, a ... carry an antibiotic-resistant gene to a class of antibiotic called ...
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