Ameliorative impact of hydroalcoholic extract of Clove buds (Syzygium aromaticum) on contrast-induced acute kidney injury; an experimental histopathological study

Abstract

Introduction: The administration of iodinated contrast medium is extensive in various imaging techniques including coronary angiography. Objectives: The present investigation was designed to examine the ameliorative effect of clove buds (Syzygium aromaticum) on contrast-induced acute kidney injury (CI-AKI) in rats Materials and Methods: Forty male Wistar rats with a mean body weight of 200-250 g were studied. Rats randomly assigned into four groups, 10 rats for each; Group 1; normal rats (control group; sham group); they did not receive any drugs. Group 2; rats were received 10 mL/kg as a single dose of iodixanol (contrast media) by intravenous (IV) injection. Group 3; rats received 10 mg/kg clove by intraperitoneal (IP) injection for three days, while in day forth, they received a single dose of iodixanol (10 mL/kg). Group 4; rats of this group first received a single dose of iodixanol (10 mL/ kg). Then rats treated by clove (10 mg/kg) by intraperitoneal (IP) injection for three days (days 2, 3 and 4th). Kidney sections were examined for degeneration, flattening, and necrosis of renal tubular cells and also dilatation of tubular lumen. Results: We found a significant difference between groups regarding the sum of injury (degeneration, flattening, necrosis and dilatation). A significant difference in types of injury (degeneration, flattening, necrosis and dilatation) among the groups (P=0.001) was seen too. We detected a significant difference between groups II (contrast media) and III (rats pretreated by clove; P<0.001). Accordingly, we detected a significant difference between groups II (contrast media) and IV (rats post-pone treated by Clove buds; P<0.001) too. There was not a significant difference between groups of III and IV (P> 0.05). Conclusion: In this animal study, we found that post-pone treatment of clove was as effective as pretreatment to mitigate the injury induced by contrast media.

The Influence of Syzygium aromaticum Ethanolic Extract Against Streptozotocin-Induced Diabetic Rats

“…This most likely suggests that diabetes mellitus resulted in renal failure that led to loss of serum albumin gradually because negatively charged glycosaminoglycan were lost in the cellular basement membrane and the consequent enlargement of basement membrane pore size thus leading to albuminuria [58]. Interestingly, treatment of diabetic rats with clove extract normalized serum albumin; this revealed the therapeutic potency of clove ethanolic extract in ameliorating kidney function [37,59].…”