Objective: For the early identification of patients at risk of developing diabetes mellitus, and to prevent the onset of diabetes by performing dietary counseling and exercise guidance, we have developed an ultra-sensitive immune complex transfer enzyme immunoassay (ICT-EIA) to measure soluble human insulin receptor ectodomain (sIRalpha) in urine which is collected non-invasively.
Design And Methods: We developed ICT-EIA for sIRalpha and measured urinary sIRalpha from 106 healthy volunteers, 35 obese volunteers and 42 patients with diabetes.
Results: The detection limit of ICT-EIA (0.04 pg/mL), using a urine sample of as little as 100 microL, was a few hundred-fold higher than that of conventional ELISA. Using ICT-EIA, the urinary sIRalpha level in patients with diabetes (9.7+/-20.1 pg/mg creatinine) was significantly higher than those in healthy volunteers (1.4+/-0.9; P<0.001).
Conclusion: ICT-EIA for sIRalpha may be useful as a good marker for evaluating diabetes risk.
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| http://dx.doi.org/10.1016/j.clinbiochem.2009.06.014 | DOI Listing |
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