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Involvement of visceral fat in the pathogenesis of albuminuria in patients with type 2 diabetes with early stage of nephropathy

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Abstract

Background

Visceral obesity has been implicated in the pathogenesis of diabetic nephropathy. Waist circumference has been used as a surrogate measure of visceral fat mass; however, subcutaneous fat mass is also correlated with waist circumference. We therefore conducted this cross-sectional study to clarify the relationship between directly measured sizes of visceral and subcutaneous fat and microalbuminuria in patients with type 2 diabetes (T2DM).

Methods

We studied a total of 208 adult Japanese individuals with T2DM, 99 women and 109 men, with a mean ± standard deviation (SD) age of 56 ± 13 years. Patients with macroalbuminuria, defined as a urinary albumin-to-creatinine ratio (ACR) ≥300 mg/g creatinine, and those with an estimated glomerular filtration rate <15 ml/min/1.73 m2 were excluded. Visceral and subcutaneous fat areas were measured by abdominal computed tomography.

Results

In the univariate correlational analysis, logarithmically transformed urinary ACR was significantly associated with visceral fat area (r = 0.14, p = 0.047) but not with subcutaneous fat area (r = 0.08, p = 0.237). In the multiple regression analysis with stepwise selection procedure, visceral fat area but not subcutaneous fat area was selected as an independent variable that was statistically associated with urinary ACR.

Conclusion

This cross-sectional study suggests that increased visceral but not subcutaneous fat is independently associated with microalbuminuria in Japanese adult patients with T2DM.

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Correspondence to Tetsuya Babazono.

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Hanai, K., Babazono, T., Nyumura, I. et al. Involvement of visceral fat in the pathogenesis of albuminuria in patients with type 2 diabetes with early stage of nephropathy. Clin Exp Nephrol 14, 132–136 (2010). https://doi.org/10.1007/s10157-009-0245-8

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  • DOI: https://doi.org/10.1007/s10157-009-0245-8

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