Lviv clinical bulletin 2021, 3(35)-4(36): 8-15

https://doi.org/10.25040/lkv2021.03-04.008

Diabetic Cardiovascular Autonomic Neuropathy: Effects of Simvastatin and Omega-3 Polyunsaturated Fatty Acids on Insulin Resistance and Lipid Profile Parameters

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V. Serhiyenko, M. Hotsko, S. Azhmi, O. Serhiyenko

Danylo Halytsky Lviv National Medical University

Introduction. Currently, there is no unified treatment algorithm of cardiac autonomic neuropathy (CAN) in patients with type 2 diabetes mellitus (T2DM).

The aim of the study was to investigate the effects of simvastatin (SIM) and w-3 polyunsaturated fatty acids (w-3 PUFAs) on blood lipid profile and insulin resistance (IR) in patients with type 2 diabetes mellitus and definite cardiac autonomic neuropathy.

Materials and methods. The study involved 72 patients with T2DM and definite CAN. Patients were divided into four groups: 1st – received standard hypoglycemic therapy – control (n = 15); 2nd (n = 22) – in addition simvastatin (SIM) 20.0 mg/q.d.; 3rd (n = 18) – in addition 1 capsule/q.d. of the ω-3 PUFAs; 4th (n = 17) – in addition SIM 10.0 mg/q.d and 1 capsule/q.d of the ω-3 PUFAs for three months. The concentration of glucose, glycated hemoglobin A1c, immunoreactive insulin (IRI), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG) in the blood were determined. Homeostasis model assessment IR (HOMA-IR), atherogenic coefficient (AC), TG/LDL-C, TG/TC, TG/LDL-C and TG and glucose index (TyG) were calculated.

Results. Prescription of SIM was accompanied by a statistically significant decrease in TC, LDL-C, TG concentrations. In parallel, SIM induced a decrease of AC, TG/HDL-C, increase in HDL-C, and does not affect the IRI, HOMA-IR, TG/LDL-C, TG/TC, TC/LDL-C/HDL-C, TyG. The use of ω-3 PUFAs has contributed to a significant reduction in TG, AC, TG/LDL-C, TG/TC, TG/HDL-C, TyG index, increase in HDL-C, and was not accompanied by changes in IRI content, HOMA-IR, TC, LDL-C, and TC/LDL-C/HDL-C. The combined prescription of SIM and w-3 PUFAs was accompanied by more pronounced, statistically significant changes in the blood lipid spectrum, as well as a decrease in the IRI and HOMA-IR.

Conclusions. Obtained results justify the appropriateness of combined simvastatin and w-3 polyunsaturated fatty acids prescription to patients with type 2 diabetes mellitus and definite cardiac autonomic neuropathy.

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