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Genebanks: Preserving genetic diversity for Earth’s future

The idea of freezing and storing the genetic materials of endangered plants and animals in some offsite location sounds more like a Jurassic Park sequel than a reality, but it is something that is in the works.

Endangered species protection programs, zoos, and plant conservatories work to preserve the Earth’s animal and plant population, but in order to preserve the richness of biological diversity, alternatives such as gene banking must be used, scientist said today at the American As

Researchers find promising drug for preventing serious complications of diabetes

Results reported in Nature Medicine

Opening up the possibility of a new approach to the treatment of diabetes, researchers have shown in animal studies that a drug long available in Europe can simultaneously block three of the major biochemical pathways responsible for the blood-vessel damage that causes serious diabetic complications.

Dr. Michael Brownlee of the Albert Einstein College of Medicine was the senior researcher for the international consortium that carried out t

Can carbon sequestration solve global warming?

The U.S. Government is spending millions of dollars to research the feasibility of stuffing carbon dioxide into coal seams and fields of briny water deep beneath the Earth. But, a scientist at the American Association for the Advancement of Science (AAAS) Annual Meeting argues that the government isn’t thinking big enough in its plans to remove carbon dioxide from the atmosphere.

Dissatisfied with the long-term potential of most current technologies for carbon sequestration, Klaus Lack

Meeting the nitrogen management challenge: Arresting the nitrogen cascade

Nitrogen is central to food production, helping feed almost 40 percent of the world’s growing population, but the element also starts a cascade that moves through the atmosphere, soils, and waters, dramatically altering the environment.

In order to meet future need and preserve the environment, new strategies and opportunities for improved nitrogen management must be developed, scientists said today at the American Association for the Advancement of Science (AAAS) Annual Meeting.

The nucleus: Not just a bag of chromosomes

Educators and scientists should discard the idea that a cell’s nucleus is just a bag of chromosomes, according to Johns Hopkins’ cell biologist Kathy Wilson, Ph.D. In a Feb. 17 session at the annual meeting of the American Association for the Advancement of Science (AAAS) in Denver, Wilson and five others will introduce visual evidence of the nucleus’s newly recognized importance.

“The old view is that the nucleus is simply a warehouse for chromosomes,” says Wilson, associate

Chromatin structure: More folding, more complexity than expected

New molecular technologies, some driven by the work of a researcher at the University of Illinois at Urbana-Champaign, are exposing unexpectedly high levels of DNA folding and complex protein-rich assemblages within the nucleus of cells that he says “seriously challenge the textbook models.”

“What we are seeing suggests that there may be machinery, not yet identified, that controls the folding and the movements of enzymes that turn genes on and off,” said Andrew Belmont, a professor of cell

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