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A cross section from a mouse pancreas reveals an emerging islet, with insulin stained red and nuclei stained blue. On p. 763, Bhatia and colleagues show that transplantation of bone marrow cells in a mouse model of diabetes induces pancreatic regeneration.
As the first products based on pharmacogenomics emerge, economic and regulatory considerations will affect—and be affected by—drug approval, licensing and delivery long before medicines are prescribed by a physician.
The observation that embryonic stem cells can not only differentiate into oocytes, but also form blastocyst-like structures has provocative implications for basic research and beyond.
