Serum level of the autophagy biomarker Beclin-1 in patients with diabetic kidney disease.

Abstract:

:Autophagy is a major cellular clearance mechanism that maintains cellular survival and homeostasis. Autophagy has a crucial role in the progression of diabetes and kidney diseases. AIMS:To investigate serum concentrations of Beclin-1, a key regulator of autophagy, in patients with diabetic kidney disease (DKD). METHODS:The study included 70 patients with type 2 diabetes and DKD (group 1; 35 patients with estimated glomerular filtration rate (eGFR) ≥ 30 ml/min/1.73 m2 and group 2; 35 patients with eGFR < 30 ml/min/1.73 m2) and 20 age- and sex-matched healthy subjects (group 3). Laboratory work up included; glycated hemoglobin (HbA1c), serum creatinine, eGFR using modification of diet in renal disease (MDRD) formula, urine albumin to creatinine ratio (ACR), and serum Beclin-1 measurement. RESULTS:Patients with DKD had significantly lower Beclin-1 levels (2.38 ± 1.46 ng/mL) compared to control group (6.03 ± 1.94 ng/mL; P < 0.001). Moreover, serum Beclin-1 significantly decreased in group 2 (1.43 ± 0.83 ng/mL) compared to group 1 (3.36 ± 1.30 ng/mL; P < 0.001). In univariate analysis, the concentration of Beclin-1 correlated well with eGFR (r = 0.64, P < 0.001), ACR (r = -0.63, P < 0.001), and duration of diabetes (r = -0.43, P < 0.001) but didn't correlate with HbA1c (r = -0.17, P = 0.15). However, ACR was the only significant predictor of Beclin-1 level on performing multiple regression analysis (β = -0.40, P = 0.01). CONCLUSION:Serum level of Beclin-1 is reduced in patients with DKD. Furthermore, its level is related to the stage of DKD and correlates with the degree of albuminuria.

authors

Naguib M,Rashed LA

doi

10.1016/j.diabres.2018.06.022

subject

Has Abstract

pub_date

2018-09-01 00:00:00

pages

56-61

eissn

0168-8227

issn

1872-8227

pii

S0168-8227(18)30205-5

journal_volume

143

pub_type

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