Leptin/Adiponectin Ratios Using Either Total Or High-Molecular-Weight Adiponectin as Biomarkers of Systemic Insulin Sensitivity in Normoglycemic Women

Research output: Contribution to journalArticle

Abstract

Plasma leptin/adiponectin ratio (LAR) is negatively associated with insulin sensitivity indexes. High-molecular-weight adiponectin (HMWA) was proposed as the most biologically active form of this insulin-sensitizing adipokine. There are no studies assessing the relative merits of leptin/HMWA ratio over LAR as a biomarker of systemic insulin sensitivity. A standard 2-hour oral glucose tolerance test (OGTT; 75 g of glucose) and a short minimal-model intravenous glucose tolerance test (IVGTT; 0.3 g/kg body weight) were performed in 58 Chilean normoglycemic women (age: 27 ± 6.3 years, BMI 23.6 ± 3.2 kg/m2). LAR was negatively associated with HOMA-S (; ), Matsuda-ISICOMP (; ), and the calculated sensitivity index (CSi) derived from IVGTT (; ). In comparison to LAR, leptin/HMWA ratio did not increase neither the linear fit () nor the magnitude of association with insulin sensitivity indexes (slope of multiple linear regression). The discriminatory capacity of both ratios to classify insulin-resistant versus insulin-sensitive subjects was similar for HOMA-S (), Matsuda-ISICOMP (), or CSi (). In conclusion, LAR showed consistent negative associations with different systemic insulin sensitivity indexes. The use of HMWA to generate leptin/HMWA ratio did not show any advantage over LAR as a biomarker of systemic insulin sensitivity in normoglycemic women

Details

Authors
Organisations
External organisations
  • Pontifical Catholic University of Chile
  • Austral University of Chile
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Cell and Molecular Biology

Keywords

  • leptin, adioponectin, biomarker, Insulin sensitivity
Original languageEnglish
Pages (from-to)1-12
Number of pages11
JournalJournal of Diabetes Research
Publication statusPublished - 2017 May 25
Publication categoryResearch
Peer-reviewedYes