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In This Issue...January 21, 2009   News Feed | Help Read the entire issue			Search all issues:
Cool Image: DNA Record Emily Harrington • University of California, Santa Cruz Just as paleontologists have fossils, biomedical researchers have DNA to help them study the past. Studying changes as well as similarities in DNA sequences reveals how organisms evolve over time. This issue highlights how the concept of evolution undergirds biomedical research. More...			Quick Links Browse Past Issues Subscribe or Unsubscribe View Cool Image Gallery Link to Us
How We're Different from Chimps Ajit Varki • University of California, San Diego Evolutionary changes in our DNA may make people more susceptible to certain diseases chimps do not get. More...	Low on Iron Dennis Thiele • Duke University Medical Center A finding in yeast may help explain iron deficiency and diabetes in humans. More...	"Bombing" Drug-Resistant Bacteria Erik Sontheimer and Luciano Marraffini • Northwestern University A naturally occurring genetic "smart bomb" might help slow the spread of antibiotic-resistant bacteria. More...	Short RNAs Show a Long History David Bartel and Andrew Grimson • Whitehead Institute Small RNAs were present early in animal evolution and may have contributed to the development of more complex organisms. More...

Biomedical Beat is produced by the Office of Communications and Public Liaison of the National Institute of General Medical Sciences. Some of the research briefs in this digest were generated from university or national laboratory news releases. For more information about Biomedical Beat, please contact the editor, Emily Carlson, at carlsone@nigms.nih.gov or 301-594-1515. To talk to someone at NIGMS about this research, call 301-496-7301. The text in this newsletter is not copyrighted and we encourage its use or reprinting. For image permissions, e-mail info@nigms.nih.gov.