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tag slime mold evolution disease medicine

Drug Makers on the Apoptotic Trail
Ted Agres | Jun 24, 2001 | 4 min read
Apoptosis, a key process in the development of embryonic tissue differentiation, later helps to regulate the normal cellular life cycle by destroying damaged cells. When something goes awry, too little apoptosis can make cancer cells resistant to chemotherapy and even death-defiant. At the other extreme, premature or excessive apoptosis has been linked to neurodegenerative diseases, such as Alzheimer's, and to nerve cell loss in strokes. Not surprisingly, many major pharmaceutical companies rec
Comparative Genomics Reveals The Interrelatedness Of Life
Ricki Lewis | Jan 4, 1998 | 7 min read
Photo: Karen Young Kreeger EXCITING ERA: TIGR's Craig Venter says efforts to unravel the information being gathered will last "into the next century." While the list of genome projects grows, research focus is shifting from structure to function. So even as automated DNA sequencers crank out bases and powerful software overlaps pieces of genomes (contigs) to establish gene orders, investigators are searching and comparing those sequences among species, an approach called comparative genomics.
Enter the Matrix
Ricki Lewis | Apr 25, 2004 | 6 min read
WHAT A TANGLED WEB:Courtesy of Philip B. MessersmithFibroblasts are cellular workhorses of extracellular matrix production, spinning out the majority of collagens, the most abundant proteins in the animal kingdom.Appreciation in biology can come slowly. Researchers once deemed as junk the parts of genes not represented in proteins; likewise, neuroglia were thought to be mere bystanders to neurons. So it is with the extracellular matrix (ECM), the "scaffolding" and "glue" that fill the spaces amo
Frontlines
Hal Cohen | Jun 9, 2002 | 5 min read
For many laboratories, monkey business is no laughing matter. The rise in bioterrorism research after the Sept. 11 tragedy puts an increased demand on the already limited supply of rhesus monkeys for research ("Monkey deficit crimps laboratories as scientists scramble for alternatives," The Wall Street Journal, May 14, 2002). The genetic similarity between humans and rhesus monkeys has helped establish the species as the preferred nonhuman primate model for medical research, making the monkeys e

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