title: Development of paper-strip test for 3-hydroxybutyrate and its clinical application.
abstract: A rapid paper-strip test for the semiquantitating 3-hydroxybutyrate (3-OHBA) has been developed. The color develops within 5 min after applying the serum to the paper strip, and the purple color was read either visually or by reflectance meter. This can detect 3-OHBA levels as low as 0.1 mmol/L up to 2.0 mmol/L. The more concentrated sample can be measured on serial dilution. Clinical usefulness has been tested in a summer camp for insulin-dependent diabetic children as well as in a routine diabetes clinic. Serum 3-OHBA levels ranged from greater than 100 mumol/L to 4 mmol/L in all the subjects before breakfast in a summer camp. In four subjects, 3-OHBA was elevated to the level of 2-4 mmol/L, and only one of these four subjects exhibited ketonuria by nitroprusside test. In a diabetes clinic, a new paper-strip test for 3-OHBA has revealed ketonemia in 34 (74%) of 46 diabetic subjects, while nitro-prusside test revealed ketonemia in only 4 (13%). The present paper-strip test for 3-OHBA is sensitive enough to detect levels as low as 0.1 mmol/L and is clinically useful for rapid detection of ketosis proneness as well as for monitoring of diabetes control.
mesh_terms: D020155:3-Hydroxybutyric Acid; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003922:Diabetes Mellitus, Type 1 / Q000097:blood*; D003924:Diabetes Mellitus, Type 2 / Q000097:blood*; D005260:Female; D006801:Humans; D006885:Hydroxybutyrates / Q000097:blood*; D007202:Indicators and Reagents; D007657:Ketone Bodies / Q000097:blood / Q000652:urine; D008297:Male; D008722:Methods; D008875:Middle Aged; D011934:Reagent Strips
chemical_list: D006885:Hydroxybutyrates; D007202:Indicators and Reagents; D007657:Ketone Bodies; D011934:Reagent Strips; D020155:3-Hydroxybutyric Acid