US 7,452,687 B2
Method of detecting mild impaired glucose tolerance or insulin secretory defect
Masaru Yamakoshi, Mishima (Japan); and Takuji Kouzuma, Mishima (Japan)
Assigned to Asahi Kasei Pharma Corporation, Tokyo (Japan)
Appl. No. 10/509,120
PCT Filed Mar. 27, 2003, PCT No. PCT/JP03/03771
§ 371(c)(1), (2), (4) Date Nov. 29, 2004,
PCT Pub. No. WO03/083133, PCT Pub. Date Oct. 09, 2003.
Claims priority of application No. 2002-097121 (JP), filed on Mar. 29, 2002.
Prior Publication US 2005/0214885 A1, Sep. 29, 2005
Int. Cl. C12Q 1/48 (2006.01); C07C 35/16 (2006.01)
U.S. Cl. 435—15  [568/833] 12 Claims
 
1. A method of detecting mild impaired glucose tolerance or an insulin secretory defect in a subject, wherein the method comprises:
providing urine samples from said subject, wherein the samples are obtained before and after glucose load, or before and after a meal;
quantitatively determining the myo-inositol level in the samples; and
determining that the subject has mild impaired glucose tolerance or that the subject has an insulin secretory defect based on the concentration of myo-inositol in the samples,
wherein the increment of the concentration of myo-inositol at a characteristic value or higher than a characteristic value of 0 to 20 μg myo-inositol per mg creatinine when measured as an increasing amount of myo-inositol excreted in the urine in a period from 0.5 to 6 hours after 75 g glucose load indicates the subject has mild impaired glucose tolerance or the subject has an insulin secretory defect.