Bacteria don’t have easy lives. In addition to mammalian immune systems that besiege the bugs, they have natural enemies called bacteriophages, viruses that kill half the bacteria on Earth every two days.
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When cells are confronted with an invading virus or bacteria or exposed to an irritating chemical, they protect themselves by going off their DNA recipe and inserting the wrong amino acid into new proteins to defend them against damage, scientists have discovered.
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State and local officials are planning a major economic development announcement in downtown Nashville on Monday morning.

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The Baltimore Sun reports: “[P]harmaceutical companies that make … prescription drugs are also looking over the doctor’s shoulder, keeping track of how many prescriptions for whose drugs the individual physician is writing.” The data is used to hone marketing pitches to individual physicians with carefully selected research findings.
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When you eat may be just as vital to your health as what you eat, found researchers at the Salk Institute for Biological Studies. Their experiments in mice revealed that the daily waxing and waning of thousands of genes in the liver the body’s metabolic clearinghouse is mostly controlled by food intake and not by the body’s circadian clock as conventional wisdom had it.
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The world’s largest species of monkey ‘chooses’ mates with genes that are different from their own to guarantee healthy and strong offspring, according to a new research study. The results obtained from mandrills, a species closely related to humans, support the disputed theory that humans are attracted to those with a dissimilar genetic make up to maintain genetic diversity.
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Springer and the American College of Medical Toxicology (ACMT) have signed an agreement to collaborate on the publication of the Journal of Medical Toxicology (JMT), the official journal of the ACMT, beginning in March 2010. It was previously published by the University of Pennsylvania Press. The Journal of Medical Toxicology, an international, peer-reviewed journal, is dedicated to advancing the science and practice of medical toxicology.
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The National Institute of General Medical Sciences (NIGMS), part of the National Institutes of Health (NIH), is investing $42.3 million for grants in scientific areas it identified as “Grand Opportunities (GO).” NIH developed the GO grant program to stimulate biomedical research and the economy using funds provided by the American Recovery and Reinvestment Act (Recovery Act).
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The atomic-level action of a remarkable class of ring-shaped protein motors has been uncovered by researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) using a state-of-the-art protein crystallography beamline at the Advanced Light Source (ALS).
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Health companies have done better than the rest of corporate America during the past decade, MarketWatch/Seattle Times reports. While profits at the S&P 500 companies declined slightly over 10 years, “[d]ata compiled by MarketWatch show that the 52 health-care companies in the index are about to close out the decade with average profits that nearly tripled.
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