Methods in Vitamin B-6 Nutrition

Methodology of Vitamin B-6 Analyses.- Vitamin B-6 Analysis: Some Historical Aspects.- Microbiological Assay of Vitamin B-6 in Foods.- Microbiological Assay of Vitamin B-6 in Blood and Urine.- Microassay of Pyridoxal Phosphate Using Tyrosine Apodecarboxylase.- An Improved Colorimetric Assay for Pyridoxal Phosphate Using Highly Purified Apotryptophanase.- Simple Assay for Femtomoles of Pyridoxal and Pyridoxamine Phosphates.- Chemical Analysis of Pyridoxine Vitamers.- Extraction and Quantitation of B-6 Vitamins from Animal Tissues and Human Plasma: A Preliminary Study.- Determination of Vitamin B-6 Compounds by Semiautomated Continuous-Flow and Chromatographic Methods.- Methodology for Determination of Blood Aminotransferases.- Criteria for Vitamin B-6 Status Assessment.- Vitamin B-6 Status Assessment: Past and Present.- Estimated Dietary Intakes of Vitamin B-6.- Assessment of Vitamin B-6 Status in Infants and Children: Serial Pyridoxal Phosphate Levels in Premature Infants.- Vitamin B-6 Content in Human Milk.- Plasma PLP as Indicator of Nutrition Status: Relationship to Tissue Vitamin B-6 Content and Hepatic Metabolism.- Urinary 4-Pyridoxic Acid, Urinary Vitamin B-6 and Plasma Pyridoxal Phosphate as Measures of Vitamin B-6 Status and Dietary Intake of Adults.- The Tryptophan Load Test as an Index of Vitamin B-6 Nutrition.- Vitamin B-6 and Sulfur Amino Acid Metabolism.- Methionine Metabolite Excretion as Affected by a Vitamin B-6 Deficiency.- Evaluation and Recommendations.- Recommended Methods for Vitamin B-6 Analysis.- Recommendations for Assessment of Vitamin B-6 Status.- List of Participants.