DOI: 10.4103/aam.aam_487_26 ISSN: 1596-3519

Association of Serum Adiponectin Levels with Diabetic Peripheral Neuropathy in Adults with Type 2 Diabetes Mellitus: A Cross-sectional Observational Study

Naga Sandhya Katta, Naga Anil Krishna Ramisetty, Phaneendra Dudala, Sunanda Tirupathe, V. B. Kasyapa Jannabhatla, Zagabathina Siddu Nikith

Abstract

Background:

Diabetic peripheral neuropathy (DPN) is a common debilitating microvascular complication of type 2 diabetes mellitus (T2DM). Adiponectin, an adipocyte-derived hormone with insulin-sensitizing and anti-inflammatory properties, is considered a potential biomarker for neuropathy, but findings remain inconsistent. This study evaluated the association between serum adiponectin levels and DPN among adults with T2DM.

Materials and Methods:

A cross-sectional observational study was conducted among 60 adults with T2DM at a tertiary care center in South India. Participants were divided into two groups: with clinically diagnosed DPN ( n = 30) and without DPN ( n = 30). Serum adiponectin was measured using an enzyme-linked immunosorbent assay. Demographic, anthropometric, glycemic, and lipid parameters were compared between groups. Correlation analyses, receiver-operating characteristic (ROC) curve evaluation, and multivariate logistic regression were performed.

Results:

Participants with DPN were older, had a longer duration of diabetes, and exhibited higher total cholesterol levels than those without DPN. Serum adiponectin levels were significantly higher in the DPN group (8.05 ± 3.95 µg/mL) compared with the non-DPN group (6.29 ± 2.71 µg/mL; P = 0.049). Adiponectin showed a significant positive correlation with glycated hemoglobin ( r = 0.275, P = 0.033) and a borderline negative correlation with triglycerides. ROC analysis yielded an area under the curve of 0.634 for adiponectin alone and 0.823 for the multivariate model. In logistic regression, only the duration of diabetes remained an independent predictor of DPN.

Conclusions:

Serum adiponectin levels were elevated in individuals with DPN, possibly a compensatory response to longstanding metabolic stress. Despite diagnostic utility, adiponectin was not an independent predictor of neuropathy. Adiponectin may serve as an adjunctive biomarker when integrated with clinical and metabolic indicators.

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