Impaired Vascular Endothelial Function is Associated with Peripheral Neuropathy in Patients with Type 2 Diabetes

• Main Authors: Li L, Yang Y, Bai J, Zhang Y, Yang H, Lv H
• Format: Article in Journal/Newspaper
• Language: English
• Published: Dove Medical Press 2022
• Subjects: type 2 diabetes; diabetic peripheral neuropathy; vascular endothelial function; cardiovascular disease; toronto clinical scoring system; Specialties of internal medicine; RC581-951; DML
• Online Access: https://doaj.org/article/cfd71d2427324eaeb0c8ce73c536c020

Lingling Li,1,2 Ying Yang,1,2 Jia Bai,1,2 Yangyang Zhang,1,2 Hong Yang,1,2 Yuqi Zhang,1,2 Haihong Lv1 1Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China; 2The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of ChinaCorrespondence: Haihong Lv, Email [e-mail]: It is believed that vascular endothelial dysfunction is involved in the occurrence of cardiovascular disease (CVD), and diabetic peripheral neuropathy (DPN) is associated with flow-mediated dilation (FMD), however, the correlation is still unclear. Aims of the present study is to explore the relationship between DPN parameters and FMD, providing a new approach for the prevention of CVD.Patients and Methods: A total of 272 patients with T2DM from the Department of Endocrinology of The First Hospital of Lanzhou University according to the grading criteria were selected. FMD was measured by a new vascular ultrasound system and patients were divided into FMD> 7%, 4%≤FMD≤ 7%, and FMD< 4% groups. The Toronto Clinical Scoring System (TCSS) was used to assess the severity of DPN. The nerve conduction studies (NCS) assessed large fibre neuropathy by nerve conduction velocity (CV), compound muscle action potential (CMAP) amplitude (Amp), and distal motor latency (DML). SPSS 25.0 was used for statistical analysis.Results: TCSS evaluation revealed that the percentage of patients with severe nerve injury was significantly higher in FMD< 4% (70%) compared to FMD> 7% (2%). Among the TCSS indicators of all subjects, the proportion of temperature disturbance was the most (73%), and joint position disturbance was the least (0). TCSS scores were negatively correlated with FMD (r=− 0.756, p< 0.001). More interesting, in FMD< 4% group, CV and Amp were positively correlated with FMD, while DML was negatively correlated (p< 0.05). Linear regression analysis model showed that different systolic blood pressure (SBP), ...