Wnts Regulate the Cell Cycle of Neural Precursors Image courtesy of the McMahon lab. John Edsall Dies at Age Ninety-Nine John Tileston Edsall, an emeritus professor of biochemistry known for his research on the chemistry of proteins and enzymes, died early yesterday morning (June 12) at Sherrill House in Boston. He was 99. Howard Berg Elected to American Philosophical Society MCB Internal Web ...