title: High-performance liquid chromatographic measurements of urinary hydroxycarboxylic acids as an index of the metabolic control in non-insulin-dependent diabetic patients.
abstract: Hydroxycarboxylic acids in urine of patients with non-insulin-dependent diabetes mellitus and of healthy subjects are analyzed as 2-nitrophenylhydrazides by an improved high-performance liquid chromatographic method which has advantages with respect to resolution and analysis time. Variations in levels of hydroxycarboxylic acids, originated from the metabolism of valine, leucine and isoleucine, have been described in the diabetic patients who have good and poor metabolic controls. The sum of the hydroxycarboxylic acids in both groups of diabetic patients was significantly increased compared with the values of the healthy subjects. Statistically significant difference was present between the two groups. In the whole group of diabetic patients, the sum of the hydroxycarboxylic acids correlated with fasting plasma glucose or hemoglobin A1c (r = 0.548, P < 0.01 and r = 0.629, P < 0.01, respectively). These results suggest that the relevance of these abnormalities may be used as an index of metabolic control in diabetic patients.
authors.affiliation: Faculty of Pharmaceutical Sciences Fukuoka University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Miwa
authors.forename: M
authors.initials: M
authors.lastname: Yamamoto
authors.forename: K
authors.initials: K
authors.lastname: Kan
authors.forename: T
authors.initials: T
authors.lastname: Futata
authors.forename: T
authors.initials: T
authors.lastname: Asano
mesh_terms: D000328:Adult; D000597:Amino Acids, Branched-Chain / Q000378:metabolism / Q000652:urine; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003924:Diabetes Mellitus, Type 2 / Q000175:diagnosis / Q000652:urine*; D016883:Diabetic Ketoacidosis / Q000175:diagnosis / Q000652:urine*; D006801:Humans; D006834:Hydrazines / Q000737:chemistry; D006880:Hydroxy Acids / Q000652:urine*; D008875:Middle Aged; D010659:Phenylhydrazines
chemical_list: D000597:Amino Acids, Branched-Chain; D006834:Hydrazines; D006880:Hydroxy Acids; D010659:Phenylhydrazines; C060574:2-nitrophenylhydrazine