Abstract
Diabetic dyslipidemia is a significant contributor in the pathogenesis of type 2 diabetes (T2D). The study aimed at comparing the effect of dapagliflozin, liraglutide, and atorvastatin alone or their combinations on lipids and inflammatory markers and their vascular impact in T2D rats. There were 56 male albino rats included in the study and divided into two main groups. Group A (8 rats) served as normal control. Group B (48 rats) were streptozotocin-nicotinamide-induced diabetic rats. Subgroups (B-1, B-2, B-3, B-4, B-5, and B-6) received (no medications, dapagliflozin, liraglutide, atorvastatin, dapagliflozin + atorvastatin, and liraglutide + atorvastatin), respectively. Urine albumin/creatinine ratio (UACR), glycosylated hemoglobin (HBA1c), fasting serum glucose (FSG), serum low-density lipoprotein-cholesterol (LDL-C), high-density lipoprotein-cholesterol (HDL-C), TGs, lipoprotein(a) Lp (a), serum thyrotropin (TSH), highly sensitive C-reactive protein (hs-CRP) and advanced glycation end products (AGEs), were assessed. Qualitative and quantitative histological examination of kidneys focused on renal corpuscles. Dapagliflozin improved the studied parameters but with statistically insignificant increase in LDL-C, Lp (a) and significant increase in UACR. Atorvastatin improved the studied parameters but with statistically insignificant increase in FSG and HbA1C. Liraglutide and the combination groups significantly improved all studied parameters. Histologically, liraglutide and atorvastatin produced therapeutic effect, while dapagliflozin depicted nephrotoxic effect. Combination groups resulted in better effects with normalization of most of renal corpuscles. There were positive correlations between LDL-C and hs-CRP, AGEs, TSH and mesangial expansion. Combination of atorvastatin with liraglutide can improve its vasculoprotective effect. Moreover, combination of atorvastatin with dapagliflozin can ameliorate its possible nephrotoxic effect.
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