Is adiponectin a marker of preclinical atherosclerosis in kidney transplantation?

Clin Transplant. 2012 Mar-Apr;26(2):259-66. doi: 10.1111/j.1399-0012.2011.01490.x. Epub 2011 Dec 12.

Abstract

The aim of this study was to analyze the relationship between pre-transplant adiponectin (pre-ADP), abnormalities in glucose homeostasis (AGH) at three months post-transplantation, and preclinical atherosclerosis in non-diabetic patients prior to kidney transplantation (KT).

Methods: We carried out a multicenter study in 157 non-diabetic KT patients (66.5% men; age: 50±13 yr). Pre-ADP levels were analyzed using radioimmunoassay. Carotid ultrasound was performed to determine carotid intima-media thickness (c-IMT). Oral glucose tolerance test was carried out to classify patients according ADA criteria.

Results: Of the patients, 52.8% had AGH. Median pre-ADP was 19.5 (14-27) μg/mL. An inverse correlation was found between ADP and HOMA index (r=-0.432; p<0.001). Median c-IMT was 0.6 (0.48-0.71) mm. Significant inverse correlation existed between ADP and c-IMT on both sides (p<0.05). Patients with c-IMT >0.6 mm had more AGH (p=0.012) and lower ADP levels (p=0.02). We performed a logistic regression analysis using preclinical atherosclerosis (c-IMT ≥0.6 mm) as dependent variable and sex, age, BMI, ADP, AGH, and HOMA index as independent variables of altered c-IMT. Age, pre-ADP, and AGH were independent risk factors for elevated c-IMT.

Conclusions: Patients with AGH have a greater presence of preclinical atherosclerosis. ADP has an inverse relationship with AGH and is an independent marker of preclinical atherosclerosis.

Publication types

  • Multicenter Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adiponectin / blood*
  • Atherosclerosis / diagnosis*
  • Atherosclerosis / etiology
  • Biomarkers / blood
  • Blood Glucose / analysis
  • Carotid Arteries / diagnostic imaging
  • Carotid Intima-Media Thickness
  • Female
  • Homeostasis
  • Humans
  • Kidney Transplantation / adverse effects*
  • Male
  • Middle Aged
  • Ultrasonography, Doppler, Duplex

Substances

  • Adiponectin
  • Biomarkers
  • Blood Glucose