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Protective effect of Nigella sativa against paracetamol induced hepatic and renal damages

Mohammed N. Hasan, Rahat A. Khan, Mohammed Nasiruddin, Aijaz A. Khan.

Abstract
Background: Non-steroidal anti-inflammatory drugs are very commonly used as an analgesic, antipyretic, anti-inflammatory, and antiplatelet agent. They have significant adverse effect on liver and kidney besides damaging stomach. Their effect on liver and kidney are of serious concern. Hence, we have decided to study the preventive effect of Nigella sativa against paracetamol induced hepatic and renal damages.
Methods: Ethanolic and aqueous extracts of N. sativa were prepared with the help of Soxhlet’s apparatus. Totally, 36 wistar albino rats (150-200 g) of either sex were divided into six groups of six each. Group I was administered with distilled water, Group II-VI were treated with paracetamol 750 mg/kg i.p. Group III-VI were test groups also treated with N. sativa aqueous extract (200 and 400 mg/kg p.o) and ethanolic extract (200 and 400 mg/kg p.o), respectively. The treatment was given daily for 7 days and on 8th all the rats were sacrificed and the blood was analyzed for hepatic and renal function tests and tissue was preserved for histopathological examination.
Results: Paracetamol administration caused a marked hepatic and renal damage, which is evidenced by the increase in liver and renal function test parameters in the negative control group. N.sativa extracts prevented this damage. The protective was seen maximum in ethanolic extract followed by the aqueous extract in dose-dependent manner.
Conclusion: Ethanolic extract showed significant protection against paracetamol-induced and renal damage.

Key words: Nigella sativa, Paracetamol, Hepatoprotection, Nephroprotection



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