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Tag: "heavy" at biology news

Alcohol's effects on gene expression in the central nervous system

...t this brain region is sensitive to the effects of heavy alcohol drinking and repeated withdrawals. The microarray technique provides insight into cellular changes that occur over time with chronic alcohol drinking and repeated withdrawals." Collectively speaking, added McBride, findings presented at the ...

The very unexpected life and death of a leukemic cell

...chers gave 19 individuals with CLL a small dose of heavy water every day for 84 days, and the tagged water was incorporated into the DNA of the leukemia cells. This provided the researchers a way to track the cell division, or "birth" of new leukemia cells. Chiorazzi and his team calculated birth and death...

Unprecedented water level rise in Somalia

In East Africa, where days of heavy rains and flooding have led to numerous deaths and...tingency plan was also being developed. On Sunday heavy rains and floods hit Hargeisa, the main city Somaliland. The floods washed away one of the two bridg...

US life expectancy about to decline, researchers say

...th care system that cares for them will pay a very heavy price in terms of higher death rates and escalating health care costs." To estimate the current impact of obesity on life expectancy, the researchers calculated how much longer people would live if obesity did not exist. To do this, they used recent...

Fleshing out the genome

...y interest to DOE for its potential in nuclear and heavy metal waste remediation--were considered as hypothetical. This work identified 538 of these genes that expressed functional proteins and messenger RNA, accounting for a third of the hypothetical genes. They enlisted analytic software to scour public ...

A frog's life is food for thought

...t reserves. The frogs return to the surface after heavy rain, sometimes for as little as a week - to find food and build up fat reserves. During the study Ms Cramp and her supervisor Professor Craig Franklin from the School of Integrative Biology collected frogs from areas west of the Great Dividing Rang...

Survey finds silver contamination in North Pacific waters

...rvey scientist who has worked with Flegal to study heavy metal contamination in San Francisco Bay, said the elevated silver concentrations in the open ocean suggest there may be "hotspots" in Asian coastal waters where the concentrations reach toxic levels. "The open ocean is vastly diluted, so there may ...

Chemicals in tattoo inks need closer scrutiny

...ine if any inks pose health threats in the form of heavy metals or other potentially dangerous chemicals. Overall, the study covers 17 inks from five different manufacturers. "We chose to study five different brands of black ink as it is the most common color used in tattoos," Finley-Jones says. The resea...

Bioelectronic ‘signatures?hold key to DNA mutations

...ual nanocrystals, known as quantum dots, from four heavy metal salts of lead, cadmium, zinc and copper. Such nanocrystals were selected owing to their ability to yield distinct electronic signatures, with four well-resolved current peaks. Next, the nanocrystals are piggybacked onto individual DNA bases; th...

A hope for oil spill bioremediation

...anes or simple aromatic hydrocarbons. However, the heavy fraction, made of long-chain saturated and polyaromatic hydrocarbons and a considerable fraction of asphaltenes and resins, is generally recalcitrant to degradation. The team's goal was to assess the response of the natural bacterial population afte...

DOE JGI launches IMG public online microbial genome data clearinghouse

...lated in Caulobacter crescentus strains exposed to heavy metals. Examining the neighborhood around a gene of unknown function in multiple species selected from the organism browser may yield clues of what its role might be in your particular species," said Andersen. "The interface is quite intuitive, which...

Ocean climate predicts elk population in Canadian Rockies

...n usual. More snow is bad news for elk, which have heavy bodies and long, narrow legs and small hooves. The deeper the snow, the further they sink. Conversely, wolves have relatively light, sleek bodies and big, wide paws that act like snowshoes. In the Canadian Rockies, wolves rely on elk meat for 40 to 7...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...aches more iron from the pyrite and releases other heavy metals. Last year's feat gave Banfield's team the nearly complete genomes of the five major bacteria in the biofilm, four of them new to science. The current study now provides nearly half the proteins predicted to be produced by the dominant bacter...

Motor transport in bio-nano systems

...hin rod-like filaments and, in this way, drive the heavy traffic of molecular cargo within biological cells. Both motors and filaments can be isolated from the cells and used to construct biomimetic transport systems. In order to increase the flux of the cargo transport, it would be necessary to increase t...

Malaria killing a million a year

...rammes and even those with limited resources and a heavy malaria burden now have a better opportunity to gain ground against this disease," WHO Director-General Lee Jong-wook said in Geneva. The report estimates that 350 million to 500 million people worldwide contract malaria per year, up somewhat from t...

Male Combat Veterans Rank High In Heart Disease Risk

...ean War, and the Vietnam War are more likely to be heavy drinkers, heavy smokers and obese than men who are non-combat veterans or non-veterans, according to a study present...

Can our genes tell the story of our divergence?

... 6 million years ago, we shed our hirsute coat and heavy brow, mastered bipedal locomotion, and acquired a knack for abstract thought while our next of kin learned to use tools, and developed the skills to construct tree-bound nests high above the forest floor. We differ by just a tad over 1% at the DNA se...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

...its C-band radar frequency is almost unaffected by heavy rain, so it can return useful wind data even from the heart of the fiercest storms ?and is the sole scatterometer of this type currently in orbit. The ERS-2 Scatterometer results for Hurricane Rita seen here have been processed by the Royal Netherl...

Weight control protein may yield antiobesity drugs

...gan gaining weight rapidly and were about twice as heavy as normal littermates after several months, with at least a 2.8-fold increase in body fat content. The mice also exhibited a near doubling of blood lipid levels and their livers grew to more than twice their normal size owing to a massive accumulati...

New technique could alter field of mouse genetics

...flies and mosquitoes. The transposon has also seen heavy use in the genetic workhorse, Drosophila, where it is perhaps second only to the P element, whose talent to engineer changes in the fly's genome was co-discovered by Spradling 23 years ago. The P element has since become a backbone of modern fruit fl...

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