Medicinal Chemistry Research

, Volume 24, Issue 11, pp 3876–3884

β-Caryophyllene as putative male contraceptive: enhances spermatogenesis but not spermiogenesis in albino rats

  • Zina M. Al-Alami
  • Ziad A. Shraideh
  • Mutasem O. Taha
Original Research

Abstract

β-Caryophyllene (β-Car) is a natural antioxidant. It is Cannabis-derived cannabinoid receptors type 2 (CB2R) agonist. CBR2 are expressed in germ cells within the testes. The aim of this study was to investigate the effect of β-Car on the male rat body weight, sex organ weight, sperm count, motility and morphology, and on the histology and the ultrastructure of the testes and the cauda epididymides. Moreover, we compared these effects with the results of the reversible infertility inducer: metronidazole (MTZ). Sexually mature male rats were divided into five groups that received intraperitoneal injections of 10 mg/kg β-Car, 40 mg/kg MTZ, distilled water, tween 80 in normal saline solution (10 % v/v), or did not receive any treatment for an experimental period of 30 days. Cauda epididymal sperm suspensions were used to assess the sperm count, motility, and morphology. Histological and ultrastructural studies were performed on testes and cauda epididymides. Treatment with β-Car (10 mg/kg, i.p.) significantly increased the final body weight, but did not affect the sex organ weight. It resulted in a significant decrease in cauda epididymal sperm count, percentages of motile sperms, and sperms with normal morphology. Nevertheless, it neither affected the histology nor the ultrastructure of the testes or the cauda epididymides of the treated rats. As a CB2R, β-Car could be a promising natural male contraceptive, because 30-day treatment with 10 mg/kg β-Car did not affect spermatogenesis but negatively affected spermiogenesis.

Keywords

β-Caryophyllene Male fertility Metronidazole Spermatogenesis Spermiogenesis 

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Zina M. Al-Alami
    • 1
  • Ziad A. Shraideh
    • 2
  • Mutasem O. Taha
    • 3
  1. 1.Faculty of PharmacyIsra UniversityAmmanJordan
  2. 2.Department of Biological Sciences, Faculty of ScienceThe University of JordanAmmanJordan
  3. 3.Department of Pharmaceutical Sciences, Faculty of PharmacyThe University of JordanAmmanJordan

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