Interaction of sulpiride with morphine in induction of male rat infertility

Document Type : Research Paper

Authors

1 Department of Biology, Faculty of Basic Sciences, Shahed University, Tehran, Iran

2 Department of Pathology, Faculty of Medicine, Shahed University

Abstract

Introduction & Objective: Male fertility depends on the proper function of a complex system of organs. Harmful effects of morphine on male reproduction and fertility are well documented. Dopamine facilitates sexual behavior in different animal species. The antagonizing of dopamine D2 receptors with sulpiride was aimed to investigate the interaction of dopaminergic system with morphine-induced infertility.
Materials and Methods: A total of 48 adult male Wistar rats with a weight range of (220-320 g) were studied. In the first category, morphine (5 mg/kg) was injected i.p. The next groups received sulpiride (1-4 mg / kg) alone and prior (20 min) to morphine (5 mg / kg). The control group received only saline (1 ml / kg). All rats were sacrificed under deep anesthesia a week after. Their testicles were collected for examination. LH, FSH and testosterone were measured in the sera. Data were analyzed by ANOVA.
Results: Significant decreases in dimensions of testicles were observed in groups’ rats that receiving morphine or sulpiride prior to the morphine. Seminiferous tube destruction was observed in morphine and in group that receiving sulpiride prior to morphine; destruction was increased with increasing dose of sulpiride. Significant decrease of serum testosterone level was observed in rats receiving morphine and high dosage of sulpiride. Significant increase in serum testosterone level was observed in group receiving sulpiride prior to morphine.
Conclusion: It seems that dopamine has an interacting effect with morphine on induction of male infertility and its mechanism is probably carried out through dopamine D2 receptors.

Keywords

References

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Journal of Basic and Clinical Pathophysiology
Volume 7, Issue 2
December 2019
Pages 6-11

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