期刊
DIABETES & METABOLISM
卷 45, 期 5, 页码 480-487出版社
MASSON EDITEUR
DOI: 10.1016/j.diabet.2019.01.011
关键词
Adiponutrin; Chronic kidney disease; CKD; NAFLD; Type 2 diabetes
资金
- University School of Medicine of Verona, Verona, Italy
- Southampton National Institute for Health Research Biomedical Research Centre
- myFIRST AIRC grant [16888, RF-2016-02364358]
Aim. - Evidence is emerging that PNPLA3 rs738409 polymorphism (the major genetic variant associated with susceptibility to non-alcoholic fatty liver disease [NAFLD]) is associated with chronic kidney disease (CKD) in non-diabetic individuals. Currently, little is known about this association in type 2 diabetic (T2DM) patients with and without NAFLD. Methods. - We studied 101 Caucasian post-menopausal women with T2DM, consecutively attending our diabetes outpatient service during a 3-month period. Glomerular filtration rate (eGFR(CKD-EPI)) was estimated using the CKD-Epidemiology Collaboration (CKD-EPI) equation, whilst albuminuria was measured with an immunonephelometric assay on morning spot urine samples. NAFLD was detected either by fatty liver index (FLI >= 60, n = 101) or by ultrasonography (n = 77). Genotyping was performed by TaqMan-Based RT-PCR system. Results. - Eight patients had G/G, 41 G/C and 52 C/C PNPLA3 rs738409 genotypes, and 21 (20.8%) patients had CKD (eGFR(CKD-EPI) < 60 mL/min/1.73 m(2) or abnormal albuminuria). Compared to those with G/C or C/C genotypes, patients with G/G genotype had significantly lower eGFR(CKD-EPI) (63.7 +/- 11 vs. 77.4 +/- 17 vs. 81.9 +/- 15 mL/min/1.73 m(2), P = 0.014) and higher prevalence of CKD (50% vs. 24.4% vs. 13.5%. P = 0.04). After adjustment for age, duration of diabetes, haemoglobin A(1c), HOMA-estimated insulin resistance, systolic blood pressure, hypertension treatment and FLI >= 60, rs738409 G/G genotype was independently associated with both lower eGFR(CKD-EPI) (beta coefficient: -15.5, 95% CI -26.0 to -5.0, P = 0.004) and higher risk of CKD (adjusted-odds ratio 8.05, 95% CI 1.26-41.4, P = 0.03). Similar results were found when we adjusted for hepatic steatosis on ultrasography (instead of FLI >= 60). Conclusion. - Regardless of the presence of NAFLD and common cardio-renal risk factors, in postmenopausal women with T2DM, the G/G genotype of rs738409 in the PNPIA3 gene was strongly associated with lower eGFR(CKD-EPI) and higher prevalence of CKD. (C) 2019 Elsevier Masson SAS. All rights reserved.
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