environmental 2 7

Tag: "environmental" at biology news

Vaccination with embryonic stem cells prevents lung cancer in mice

... cancer and lung cancer caused by smoking or other environmental factors. Professor John Eaton told a news bri...especially those with hereditary, chronological or environmental predispositions to neoplastic disease." However, he warned that the work was still in its early s...

Environmental toxins may cause body's defenses to worsen lung disease

...ti (UC) has received $2.4 million to study whether environmental toxicants can stimulate the body's natural defense...chers, PhD, believes long-term exposure to certain environmental toxicants may activate a specific receptor--known as NKG2D--in lung cells that causes the immune sys...

Firefighters face increased risk for certain cancers

University of Cincinnati (UC) environmental health researchers have determined that firefighte...cupational carcinogens," says Lockey, professor of environmental health and pulmonary medicine at UC. "In addition, firefighters should meticulously wash their entir...

Pheromone from mother's milk may rapidly promote learning in newborn mammals

...cilitates the ability of pups to quickly associate environmental odors with the opportunity to nurse. The findings, which deepen our understanding of pheromone function and how learning occurs in the earliest days of life, are reported in the October 10th issue of the journal Current Biology, published by Cell P...

One signal elicits thousands of answers

... fall short though, because the cellular answer to environmental stimuli often doesn't show on the level of production but the modification of proteins after their synthesis. "Phosphorylation is the most important and most thoroughly researched modification," says Mann. "An estimated one-third of all cellular prot...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...ris Francis, assistant professor of geological and environmental sciences at Stanford University, and David Valentine, associate professor of Earth science at the University of California-Santa Barbara. ''Archaea have been a pretty hot topic for a number of years in the microbial ecology and physiology realm,''...

End of deforestation in view? Experts advance new way to size up global forest resources

...perts from diverse academic disciplines (forestry, environmental technology, ecology, geography, resource economics...l Experiment Station, USA. Says Mr. Ausubel, an environmental scientist: "Earth suffered an epidemic of deforestation. Now humans may help spread an epidemic of f...

First Biodiversity Census of coral reef ecosystems in the NW Hawaiian Islands

...nce or diversity are often the first indicators of environmental impacts or changes. These groups of organisms are also the least understood, and many new species records for the NWHI, as well as the discovery of new species are likely during this expedition. Department of Land and Natural Resources, Aquatic Re...

Key to lung cancer chemo resistance revealed

... by a gene called NRF2 normally protect cells from environmental pollutants like cigarette smoke and diesel exhaust by absorbing the materials and pumping them out of the cell. Another gene called KEAP1 encodes products that stop this cleansing process. But lung cancer cells sabotage the expression of these same...

Embryonic patterning makes the feathers fly

...senchyme" The researchers grew skin explants in an environmental chamber that enabled them to continually observe cell movements and track individual cells using fluorescent markers. The results were recorded in real time by time-lapse video microscopy. The resulting chicken feather movie resolved the question: th...

New system could drastically reduce herbicide use

...level of precision, Tian says the system has clear environmental benefits. In addition to cutting herbicide use, chemicals do not drift off-target when placed directly on the plants. The original inspiration for this robot came several years ago, when Tian and two graduate students were working on remote sensin...

Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

...je Baeumner, associate professor of biological and environmental engineering, both at Cornell, Frey developed nanofibers with platforms made of biotin, a part of the B vitamin complex, and the protein streptavidin, which can hold the antibodies. Composed of a polymer compound made from corn, the nanofibers could b...

Rising ocean temperatures, pollution have oysters in hot water

...okolova said. The loss of oysters has far-reaching environmental implications. "We can't even imagine the expanse of oyster reefs 100-200 years ago and their impact on the ecosystem," Sokolova said. For example, a century ago, the oyster population could completely filter the water in the Chesapeake Bay in thre...

Children of allergy sufferers prone to same problem

...e. Produced by scientists in UC's departments of environmental health and internal medicine and at Cincinnati Children's Hospital Medical Center, the study is reported in the October 2006 edition of The Journal of Pediatrics. The Cincinnati researchers collected data on 680 children being evaluated for enroll...

U-M researchers use nanoparticles to target brain cancer

...ncology at the U-M Medical School and professor of environmental health sciences at the School of Public Health. Treating brain tumors is traditionally difficult because of the blood-brain barrier, which prevents harmful substances from traveling through the bloodstream into the brain. In order for chemotherap...

Pattern of human Ebola outbreaks linked to wildlife and climate

...ons in the rainforest, which indicates that severe environmental stress may facilitate disease transmission. In the study, the researchers urge that public education is needed to decrease human contact with potentially infected wildlife by discouraging people from scavenging dead animals and by promoting safe...

Climate experts search for answers in the oceans

...t of carbon in the atmosphere and are sensitive to environmental changes, it is important to monitor and model them into calculations of future climate change," Prof. Emeritus Andre Morel at the French Observatoire Océanolgique de Villefranche explained. "The risk is that we may find the warming of the sea and the...

Particle size matters to bacteria ability to immobilize heavy metals

...uence the mobility and bioavailability of iron and environmental contaminants like lead, cobalt, and arsenic. Ph... This is the first study by any group that couples environmental microbiology and nano-mineralogy. "This adds to our understanding of how nanoparticles might influ...

The first tree genome is published: Poplar holds promise as renewable bioenergy resource

...cut reliance on oil imports but also their reduced environmental impact," said Dr. Gerald A. Tuskan, ORNL and DOE J...of how discovery science can be applied to current environmental problems facing humanity." Among the major discoveries yielded from the poplar project is the ident...

Extreme environment changes fish appearance

...iology, physiology and behavior, set out to see if environmental changes could affect how the fish looked. They reared a related but unthreatened species, the Amargosa pupfish, in the lab on a restricted diet and with slight changes in water temperature. The Amargosa pupfish began to look more like the wild Dev...

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