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Article Abstract
Selective COX-2 inhibitors are most widely used analgesic and anti-inflammatory drugs; however, its maximal use is highly associated with various serious abnormal cardiovascular events. Beraprost sodium (BPS), prostacyclin analogue has been shown to vasodilatory, antiplatelates, anti-inflmmatory, and antioxidant activity. The objective of the present study was to evaluate the effect of BPS on celecoxib cardiotoxicity in rats. Toxicity was induced in male Albino rats (250-280 g) by celecoxib (100 mg/kg/day). BPS (30 μg/kg/day) was administered alone and in combination with celecoxib for 14 days and various biochemicals, hemodynamic, left ventricular, biochemical, and histopathological parameters were studied. Cardiotoxicity of celecoxib was revealed by a significant increase in serum lactate dehydrogenase (LDH), troponin-T (Tn-T), tumor necrosis factor-α (TNF- α), creatine kinase-MB (CK-MB) and systolic blood pressure (SBP), left ventricular end diastolic pressure (LVEDP), LV (dp/dt), and LV (dp/dt) as well as tissue thiobarbituric acid reactive substance (TBARS) and a significant decrease in tissue reduced glutathione (GSH). However, treatment with BPS reversed these alteration in LDH, Tn-T, TNF-α, CK-MB, SBP, LVEDP, LV (dp/dt) LV (dp/dt) TBARS and GSH levels. The histopathological study in cardiac left ventricle revealed protection of myocardium as manifested reduction of fibrosis by abolition of collagen deposition when celecoxib was combined with beraprost sodium. It could be concluded that beraprost sodium may prove a useful adjunct in patients being prescribed celecoxib.
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Article Synopsis
- Previous research confirmed that oral pulmonary vasodilators are beneficial for treating pulmonary hypertension (PH) in dogs, yet there was no direct comparison of their hemodynamic effects.
- This study compared the effects of beraprost sodium (15 µg/kg), sildenafil (1.0 mg/kg), and their combination on dogs with induced mitral regurgitation using heart catheterization and echocardiography.
- Results showed that both drugs improved heart function, with sildenafil showing stronger pulmonary effects but also risking increased left-heart pressure; however, their combination provided the best overall results without negative impacts on heart size or pressure indicators.