The relationship between vascular endothelial growth factor (VEGF) and microalbuminuria in patients with essential

Fatma Ayerden Ebinç1, Ebinç Haksun, Derici Boztepe Ulver

  • 1Faculty of Medicine, Department of Nephrology, Gazi University. fayerdenebin@yahoo.com

Abstract

Insights

Serum vascular endothelial growth factor (VEGF) levels are elevated in patients with essential hypertension and microalbuminuria (MAU). This suggests VEGF may play a role in early vascular damage diagnosis in hypertensive individuals.

Area of Science:

  • Nephrology
  • Cardiology
  • Vascular Biology

Background:

  • Microalbuminuria (MAU) in essential hypertension (EHs) indicates microvascular damage.
  • Endothelial dysfunction and increased vascular permeability contribute to MAU pathogenesis.
  • Vascular endothelial growth factor (VEGF) regulates angiogenesis and vascular permeability.

Purpose of the Study:

  • To investigate the association between serum VEGF levels and MAU in newly-diagnosed, uncomplicated essential hypertensive patients.
  • To explore VEGF's role in the early stages of vascular damage in hypertension.

Main Methods:

  • Study included 30 EHs with MAU, 46 EHs without MAU, and 46 healthy controls.
  • Exclusion criteria: diabetes, renal impairment, atherosclerotic diseases.
  • Serum VEGF levels were quantified using the ELISA method.

Main Results:

  • Serum VEGF levels were significantly higher in EHs with MAU compared to EHs without MAU (p=0.04) and controls (p=0.007).
  • No significant difference in VEGF levels was found between non-MAU EHs and controls.
  • VEGF levels positively correlated with systolic blood pressure, diastolic blood pressure, mean arterial pressure, creatinine clearance, and MAU (p<0.05).
  • Multiple regression analysis confirmed VEGF was independently related to MAU (p=0.02).

Conclusions:

  • Elevated serum VEGF levels are associated with the presence of MAU in essential hypertension.
  • High VEGF may serve as an early biomarker for vascular damage in hypertensive patients.
  • VEGF might contribute to increased glomerular permeability, leading to MAU in EHs.

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