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[Expression and localization of the nuclear factor-κB classical signaling pathway in the radial artery of diabetic

Lei Huang1, Wen Chen1, Yifan Zhu1

  • 1Department of Thoracic & Cardiovascular Surgery, Nanjing Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China.

Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]
|November 6, 2014
PubMed

Insights

Diabetic patients undergoing coronary artery bypass grafting show increased expression of nuclear factor-κB (NF-κB) pathway components in their radial arteries. This suggests NF-κB activation contributes to vascular changes in diabetic patients undergoing CABG.

Area of Science:

  • Vascular Biology
  • Immunology
  • Diabetology

Context:

  • Coronary artery bypass grafting (CABG) is a common surgical procedure.
  • Diabetes mellitus is a significant risk factor for cardiovascular disease and influences graft patency.
  • The radial artery is frequently used as a conduit in CABG surgery.

Purpose:

  • To investigate the expression and localization of key components of the nuclear factor-κB (NF-κB) signaling pathway.
  • To compare these findings between diabetic and non-diabetic patients undergoing CABG.
  • To assess the role of NF-κB in radial artery pathology in the context of diabetes.

Summary:

  • Diabetic patients exhibited significantly thickened radial artery intima with inflammation and foam cell infiltration compared to non-diabetic patients.
  • Expression levels of NF-κB pathway factors (IKKβ, P50, P65) and inflammatory cytokines (TNF-α, eNOS) were significantly higher in the radial artery intima of diabetic patients.
  • These proteins were predominantly localized in the intimal layer cells of diabetic patients' radial arteries.

Impact:

  • This study highlights the heightened activation of the NF-κB pathway in the radial artery of diabetic patients undergoing CABG.
  • Findings suggest that NF-κB signaling contributes to the observed vascular intimal changes in diabetic patients.
  • Understanding this pathway's role may inform future therapeutic strategies to improve CABG outcomes in diabetic populations.
Abstract

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