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TNF-α and microalbuminuria in patients with type 2 diabetes mellitus

I-Th Lampropoulou1, M Stangou1, A Papagianni1

  • 1Department of Nephrology, "Hippokratio" General Hospital, Aristotle University of Thessaloniki, 49 Konstantinoupoleos Street, 546 42 Thessaloniki, Greece.

Journal of Diabetes Research
|January 15, 2015
PubMed
Abstract

Insights

In type 2 diabetes, urinary tumor necrosis factor-alpha (TNF-α) levels correlate with microalbuminuria, a marker of kidney damage. Serum TNF-α levels did not show this association, highlighting urinary TNF-α as a potential indicator.

Area of Science:

  • Nephrology
  • Endocrinology
  • Immunology

Background:

  • Chronic subclinical inflammation is implicated in diabetic nephropathy development.
  • Microalbuminuria is an early indicator of kidney damage in diabetes.

Purpose of the Study:

  • To explore the relationship between microalbuminuria and inflammation markers in type 2 diabetes mellitus.
  • To determine if serum or urinary tumor necrosis factor-alpha (TNF-α) correlates with microalbuminuria.

Main Methods:

  • Eighty patients with type 2 diabetes were analyzed.
  • Urinary albumin-creatinine ratio (ACR) and serum/urinary TNF-α levels were measured.
  • Clinical data including HbA1c, complications, and medications were recorded.

Main Results:

  • Microalbuminuria was associated with older age, higher HbA1c, and more comorbidities.
  • Albumin-creatinine ratio (ACR) correlated with cardiovascular disease, hypertension, HbA1c, and certain medications.
  • Urinary TNF-α showed a strong correlation with ACR, while serum TNF-α did not.

Conclusions:

  • Urinary TNF-α levels are linked to the presence and severity of microalbuminuria in type 2 diabetes.
  • Serum TNF-α levels are not associated with microalbuminuria in this patient cohort.
  • Urinary TNF-α may serve as a valuable biomarker for diabetic kidney disease progression.

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