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ment of mental retardation as in the young human. These two facts together suggest that the disrup tion of brain protein synthesis by high phenylala mine levels in infants may account for the mental retardation observed later in these children. Much work remains to be done to confi~m this possibility. However, it is clear from the review and research described by Waisman that neurochemis try has the tools that will lead to an understand ing of - and therefore perhaps control of - these inborn errors of metabolism which otherwise can lead to lifetimes of personal tragedy for the af fected persons and their families. The final section of these Proceedings deals with neurochemical processes which occur during brief behavioral experiences, particularly learn ing. The reported research has been motivated by the search for processes which underlie the encoding of memory, although the identification of these processes is not yet certain in the various studies. Geller and Jarvik begin with a discussion of short term and long term memory storage processes, and describe the induction of retrograde amnesia by various agents as evidence for these processes.
Presents the broad outline of NIH organizational structure, theprofessional staff, and their scientific and technical publications covering work done at NIH.
Metabolic Conjugation and Metabolic Hydrolysis, Volume II, provides an extension and further development of the themes introduced in Volume I in which the subject matter dealt either separately or in combination with the compound undergoing conjugation, the conjugate itself, the conjugating radical, and enzymic hydrolysis of the conjugate. Increased attention is also given to systems in which metabolic conjugation and metabolic hydrolysis interdigitate with each other. The book begins with studies on the role of conjugation in the biliary excretion of organic compounds; cholic acid and its conjugation; biliary secretion and intestinal metabolism and absorption; and the metabolic conjugation and hydrolysis of steroids and their conjugates, as observed in the fetoplacental unit of human pregnancy. Subsequent chapters cover the fabrication through physiological metabolic conjugation of macromolecules of glycoproteins and mucopolysaccharides; the biosynthesis of glycolipids (sphingolipids); the metabolic hydrolysis of hexosaminide linkages; ß-glucuronidases; the hydrolysis of sphingolipids; and mercapturic acid formation.
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Neuroglia is the only comprehensive reference book on the basic biology and function of glial cells. This long-awaited second edition has been completely reorganized and rewritten to include the dramatic advances in this field since the first edition was published ten years ago. The impact of the second edition will be greater than that of the first because the majority of neuroscientists now acknowledge that neuroglia are elemental to most, if not all, brain functions. The second edition covers the entire field of glial research from the basic molecular and cellular principles of these cells to their involvement in neurological diseases including stroke, Alzheimer's disease, and multiple sc...