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Rich Keffer, President Bush, John Niederhuber, James Yee

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Sigma-Aldrich this week announced Rich Keffer as its new corporate vice president, general counsel and secretary effective Aug. 28. In his new role, Keffer will manage Sigma-Aldrich’s legal services and corporate governance processes.
 
Keffer was general counsel for D&K Healthcare, which was acquired by McKesson in 2005, Sigma-Aldrich said in a statement. Keffer earned his JD from Washington University School of Law.
 

 
President Bush announced this week he will nominate John Niederhuber to be the 13th director of the National Cancer Institute. Niederhuber has been the institute’s acting director since June.
 
He also served as NCI’s COO and deputy director for translational and clinical sciences. Before joining NCI full time, Niederhuber was a professor of surgery and oncology at the University of Wisconsin School of Medicine.
 

 
XDx appointed James Yee its CMO, effective Aug. 1. Yee had been vice president and head of development for Celera Genomics. Before that, he was vice president of pre-clinical research for the Inflammatory and Viral Diseases unit at Roche Bioscience.
 

Yee received his PhD in biophysics at the University of California at Berkeley and his MD from the University of California at Los Angeles.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.