Physiology of the Gastrointestinal Tract: Edition 4

Dr. Said is a Professor of Medicine, Physiology and Biophysics at the University of California School of Medicine Irvine, CA. He is also a Senior Research Career Scientist at the VA Medical Center, Long Beach, CA; and Chairman for the Southern California Institute for Research and Education (VALBHS affiliated non-profit).He serves as a reviewer on a variety of NIH, VA and other national study sections as well as international (European) study sections dealing with medical research in internal medicine and nutrition. He is also a member of Editorial Boards of a number of prestigious medical research journals.Research in Dr. Said laboratory focuses on understanding cellular and molecular mechanisms involved in the transport of water-soluble vitamins (folate (vit. B), thiamine (vit. B1), riboflavin (vit. B2), pyridoxine (vit. B6), ascorbic acid (vit. C), biotin (vit. H) and niacin (vit. B3)) in the intestine, kidney, liver and pancreas. Dr. Said's laboratory has published over 160 original research papers in the gastrointestinal and nutrition fields. He has authored many chapters in scientific textbooks as well as a book in these areas. His laboratory has contributed many original discoveries to the field over the years. His research activities are funded by the VA and National Institutes of Health over the past twenty four years.

Leonard R. Johnson received a Ph.D. in physiology from the University of Michigan and then trained with Dr. Morton I. Grossman at UCLA. He spent 17 years as a Professor of Physiology at the University of Texas Medical School in Houston before moving to the University of Tennessee Health Science Center as the Thomas A. Gerwin Professor and Chairman of the Department of Physiology. He is the author or coauthor of over 250 papers on gastrointestinal physiology and holds an NIH MERIT Award. Currently he is the Vice Chancellor for Research at Tennessee.