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Tag: "biologically" at biology news

Mushrooms as good an antioxidant source as more colorful veggies

...t notes, "Evidence suggests that erogothioneine is biologically very important and, even though the assay used does not show it contributes to total antioxidant activity in the mushrooms, it may significantly contribute antioxidant activity in the body." The ORAC values found in the latest study indicate that mu...

Stanford snake venom study shows that certain cells may eliminate poison

...pond to many snake venoms by secreting some potent biologically active mediators, they hypothesized that mast cells might also act to degrade sarafotoxins and reduce the toxicity of the Israeli mole viper venom. Galli and Metz first did experiments in vitro using isolated sarafotoxin 6b with mast cells from mic...

Speeding discovery of the 'human cancer genome'

...cer patients, Chin said. "Robust, stringent and biologically relevant systems for filtering, annotating, and prioritizing the efforts of cancer geneticists and biologists will be essential to facilitate and accelerate the translation of our genomic knowledge into cancer drugs that will impact patient survival,...

Genes affecting blood pressure change as children become adults

... with each beat ?near the beginning and end of the biologically tumultuous times. Researchers left much-discussed obesity out of this equation, focusing instead on genes and environmental factors directly influencing blood pressure and hemodynamics. The huge twin cohort and some complex mathematical modeling mad...

Two NIH initiatives launch intensive efforts to find roots of common diseases

...gs of a word. Most of these genetic variations are biologically meaningless. But a small fraction of these SNPs alter the function of a gene ?often only slightly. The combination of many slightly altered genes may significantly increase the risk of a specific disease, but identifying such a complex set of genetic...

Rhinos clinging to survival in the heart of Borneo, despite poaching

...inuous natural forests, which are some of the most biologically diverse habitats on Earth, with high numbers of unique animal and plant species. This is one of the world's only two places ?the other being Indonesia's Sumatra island ?where orangutans, elephants and rhinos still co-exist and where forests are curre...

Cloned stem cells prove identical to fertilized stem cells

...ntists generally agree that all cloned animals are biologically flawed. But they don't agree about what that means for stem cells derived from cloned embryos, the basis for therapeutic cloning. Also known as somatic cell nuclear transfer, therapeutic cloning is a promising approach to create individually custom...

Study suggests that publicly available genome data may contain small but significant errors

...rganism, and imposing a linear sequence may not be biologically meaningful. Now, researchers at Cold Spring Harbor Laboratory and New York University describe a high throughput microarray technique that involves testing many samples simultaneously and which can be used to assemble physical maps and validate gen...

New nano-canary in the nanotoxicology coalmine: The body itself

... living cells to monitor responses to a variety of biologically active test agents. They presented their findings...stigations. These include the potential to detect biologically active nanoparticles without any prior knowledge of cell signaling pathways affected by them or need...

Nanotechnology may find disease before it starts

...gradable, the nanoparticles used in the study were biologically inert. The researchers took ultrasound images of the animals' livers every five minutes for 90 minutes after the injection. The nanoparticles had accumulated in the animals' livers. Another future step for this work is to label nanoparticles with a ...

Sexual reproduction delays aging in a mammalian species

...erse species has shown that sexual reproduction is biologically costly for individuals and tends to decrease lifespan rather than increase it. But a new study by Philip Dammann and Hynek Burda from the University of Duisburg-Essen shows that, in a vertebrate species, the opposite can be true as well. The authors...

Scientists develop protein-sequence analysis tool

...ence tells us that such positions are likely to be biologically important for defining the specific functions of the two protein classes," Shanklin said. When the Brookhaven team used the program to scan three test cases, each consisting of two groups of related but functionally different enzymes, the program co...

Researchers make long DNA 'wires' for future medical and electronic devices

...ltimately, these DNA strands could act as wires in biologically based electronics and medical devices, said L. James Lee, professor of chemical and biomolecular engineering at Ohio State University. In the early online edition of the Proceedings of the National Academy of Sciences, Lee and postdoctoral researche...

UCLA discovery will aid in treatment of patients with a deadly brain cancer

...nd one of the those lethal forms of cancer. "In a biologically aggressive disease like glioblastoma, it's vital to be able to stratify patients up front so we can treat them with drugs that they are more likely to respond to," Mischel said. "This will help prevent patients from having therapies that are much mor...

Lateral thinking produces first map of gene transmission

...ethods." The study is believed to be the largest biologically inspired computation carried out in Australia, with over 500, 000 hours of computing. The scientists used the national supercomputing facility of the Australian Partnership in Advanced Computing. ...

'Sharp' older brains are not the same as younger brains

...ed rats with preserved cognitive abilities are not biologically equivalent to young rats in some of the basic machinery that neurons use to encode and store information in the brain," said Gallagher, who collaborated with Alfredo Kirkwood and Sun Seek Min of Johns Hopkins' Krieger Mind/Brain Institute and Hey-Kyo...

New book highlights world's borderless conservation areas

...creasing popularity of protecting some of the most biologically rich territory on Earth. "This new book shows how transboundary conservation areas have a very special role in international conservation," said Russell A. Mittermeier, Ph.D., president of Conservation International and one of the book's authors. "I...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...can be excreted with no ill effect because gold is biologically compatible. Near-infrared light delivered by a laser has minimal interaction with components found in tissue, and so also does not harm the body. But when nanoshells are injected into an experimental animal with cancer, they accumulate in the tumo...

Double trouble: Cells with duplicate genomes can trigger tumors

...e cells with extra chromosomes and centrosomes are biologically different from normal cells, cancer drugs designed to kill them while sparing normal cells are "an interesting possibility," says Pellman, who is also an associate professor of Pediatrics at Harvard Medical School. The researchers treated normal bre...

Pulp mill devastates swans' sanctuary in Chile

... Chile has devastated one of South America's most biologically outstanding wetlands, decimating its famed population of black-necked swans, along with most other bird life, a WWF-led team of investigators said Monday. "What was probably the largest population of black necked swans in South America has been wipe...

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