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

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

Researchers from Imperial College London, University of Oxford, Kagoshima University (Japan) and University of the Ryukyus (Japan) have discovered the mechanism by which human T-lymphotropic virus type 1 (HTLV-1), the virus which causes adult T-cell leukaemia, spreads through the body.

Previously it was not understood how HTLV-1 was able to spread between cells and pass between individuals, but according to research published today in Science, the virus spreads by subverting normal T-cell (a

A research letter in this week’s issue of THE LANCET suggests that the pain-killer ibuprofen could diminish the well-known beneficial effects of aspirin on preventing cardiovascular disease. Aspirin makes platelets (blood-clotting cells) less ’sticky’ which is associated with fewer thromboses (clots). Aspirin therefore reduces the chance of heart attacks caused by coronary thrombosis and stroke (cerebral thrombosis). Previous laboratory research has suggested that ibuprofen in

The results from a longitudinal study of the relative frequency of various types of HIV mutations associated with the use of antiretroviral therapy (ART) were presented today at a meeting of leading AIDS researchers. The study showed that the prevalence of most key mutations associated with antiretroviral resistance have changed significantly from 1999-2002.

Specifically, the results showed that the prevalence of thymidine analog mutations (TAMs) and other key mutations associated with HIV

Smithsonian scientist challenges results of recent study

Late last year, Frédéric Achard and colleagues published a controversial article in which they contended that earlier estimates of worldwide tropical deforestation and atmospheric carbon emissions were too high. In the February 14 issue of Science, Philip Fearnside from the National Institute for Amazonian Research in Brazil, and William Laurance from the Smithsonian Tropical Research Institute in Panama argue that the Achard st