Abstract Title:

The protective role of l-carnitine on spermatogenesis after cisplatin treatment during prepubertal period in rats: A pathophysiological study.

Abstract Source:

Life Sci. 2020 Aug 9:118242. Epub 2020 Aug 9. PMID: 32784056

Abstract Author(s):

Amoura M Aboul-Naga, Eman T Hamam, Amira Awadalla, Ahmed A Shokeir

Article Affiliation:

Amoura M Aboul-Naga


AIMS: As the spermatogenesis process is targeted by cisplatin (Cis) that changes testicular morphology, alters sperm quality, and hence causes male infertility. This study investigated the possible therapeutic effects of l-carnitine (LC) on Cis impaired spermatogenesis's establishment during the prepubertal phase.

MATERIALS AND METHODS: Ninety-six prepubertal Sprague Dawley male rats were divided into four groups.

CONTROL GROUP: rats were injected with 0.9% saline solution intraperitoneally (i.p.). LC group: animals were injected for eight weeks, with 250 mg/kg/wk. LC (i.p.). Cis group: animals were injected with a single dose of 5 mg/kg Cis (i.p.). LC + Cis group: animals were pre-injected with LC 250 mg/kg 2 h before Cis injection. The rats were sacrificed at 37, 60, and 90 days old, and their testes were taken for biochemical, molecular, and histopathological studies. The motility, viability, morphology, and DNA fragmentation of sperm in adult rats were also measured.

KEY FINDINGS: Group treated with LC and Cis showed an increase in antioxidant and hormonal activity compared to the Cis treated group in the pre and post-pubertal period. Moreover, there was an increase in sperm survival, motility, and DNA integrity. Furthermore, LC showed an increase in the anti-apoptotic and chromatin remodeling genes and a decrease in the pro-inflammatory genes.

SIGNIFICANCE: LC could enhance the spermatogenesis process after exposure to Cis during the prepubertal phase by restoring the balance between reactive oxygen species and antioxidant activity, improving hormonal activity, sperm quality and DNA integrity, promoting protamination and blood-testis barrier integrity, and maintaining the testicular architecture.

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