Relationship between several surrogate estimates of insulin resistance and a direct measure of insulin-mediated glucose disposal: Comparison of fasting versus post-glucose load measurements.
Diabetes Res Clin Pract
; 136: 108-115, 2018 Feb.
Article
in En
| MEDLINE
| ID: mdl-29203256
ABSTRACT
AIMS:
The study aim was to determine the correlation of several surrogate estimates of insulin resistance with a direct measure of insulin action and the ability of these estimates to identify insulin resistant persons.METHODS:
Retrospective analysis of 454 apparently healthy individuals studied in a clinical research center. The correlations between 11 surrogate estimates of insulin resistance, using either fasting or post-oral glucose challenge values, and a direct measure of insulin-mediated glucose uptake (SSPG concentration during the Insulin Suppression Test) were determined as well as the ability of the surrogate estimates to identify insulin resistant individuals.RESULTS:
All surrogate estimates were significantly (Pâ¯<â¯.001) correlated with SSPG concentrations and successfully identified insulin resistant persons. These relationships were of lesser magnitude when estimates were based on fasting data, with the exception of the McAuley index-derived from fasting data, but resembling post-glucose challenge estimates. Moreover, correlation with SSPG concentration, and positive identification of insulin resistance, varied considerably among estimates.CONCLUSION:
All 11 surrogate estimates of insulin resistance significantly correlated with insulin-mediated glucose disposal and identified insulin resistant persons with a reasonable degree of sensitivity and specificity. For identification of insulin resistant individuals, indices based on post-glucose challenge measurements performed better than those based on fasting measurements, with the exception of McAuley index. The quantitative information derived from this analysis should help investigators select the surrogate marker of insulin resistance best suited for their study.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Blood Glucose
/
Insulin Resistance
/
Fasting
/
Postprandial Period
/
Glucose Tolerance Test
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Diabetes Res Clin Pract
Journal subject:
ENDOCRINOLOGIA
Year:
2018
Document type:
Article