Subfertility is not your genetic destiny

Polarity Is Destiny

The GTPase Cdc42 specifies polarity in various biological processes. Kesavan et al. (2009) now demonstrate that Cdc42 also regulates epithelial cell polarity in the developing mouse pancreas, where it is required for tubule formation and maintenance. Furthermore, the polarization of epithelial tissue influences the differentiation of pancreatic progenitor cells, linking cell polarity to cell sp...

what is your diagnosis?

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what is your diagnosis?

This Is Not Your Grandfather's Emergency Department.

Why is your sunscreen not working?

5. What are the implications of this study? Patients sometimes claim that, despite regular and routine use of sunscreen, they still develop “redness.” A discussion of proper ap p lication of sunscreen then ensues, and often one concludes that sunscreen compliance is really the issue. But is it? In this issue, Young and colleagues suggest otherwise. Stemming from the knowledge that UVA radiation...