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Intracerebroventricular PROK2 infusion could increase the secretion of male reproductive hormones by stimulating the HPG axis
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Intracerebroventricular PROK2 infusion could increase the secretion of male reproductive hormones by stimulating the HPG axis
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Journal Article
Intracerebroventricular PROK2 infusion could increase the secretion of male reproductive hormones by stimulating the HPG axis
2024
Overview
Background
Prokineticin 2 (PROK2), an important neuropeptide that plays a key role in the neuronal migration of gonadotropin-releasing hormone (GnRH) in the hypothalamus, is known to have regulatory effects on the gonads. In the present study, the impact of intracerebroventricular (icv) PROK2 infusion on hypothalamic-pituitary–gonadal axis (HPG) hormones, testicular tissues, and sperm concentration was investigated.
Methods and results
Rats were randomly divided into four groups: control, sham, PROK2 1.5 and PROK2 4.5. Rats in the PROK2 1.5 and PROK2 4.5 groups were administered 1.5 nmol and 4.5 nmol PROK2 intracerebroventricularly for 7 days via an osmotic mini pump (1 µl/h), respectively. Rat blood serum follicle stimulating hormone (FSH), luteinizing hormone (LH) and testosterone hormone levels were determined with the ELISA method in the blood samples after 7 days of infusion. GnRH mRNA expression was determined with the RT-PCR in hypothalamus tissues. analyze Sperm concentration was determined, and testicular tissue was examined histologically with the hematoxylin–eosin staining method. It was observed that GnRH mRNA expression increased in both PROK2 infusion groups. Serum FSH, LH and testosterone hormone levels also increased in these groups. Although sperm concentration increased in PROK2 infusion groups when compared to the control and sham, the differences were not statistically significant. Testicular tissue seminiferous epithelial thickness was higher in the PROK2 groups when compared to the control and sham groups.
Conclusion
The present study findings demonstrated that icv PROK2 infusion induced the HPG axis. It could be suggested that PROK2 could be a potential agent in the treatment of male infertility induced by endocrinological defects.
Publisher
Springer Netherlands,Springer Nature B.V
Subject
/ Animals
/ Biomedical and Life Sciences
/ Follicle Stimulating Hormone - blood
/ Follicle Stimulating Hormone - metabolism
/ Follicle-stimulating hormone
/ Gastrointestinal Hormones - metabolism
/ Gonadotropin-releasing hormone
/ Gonadotropin-Releasing Hormone - metabolism
/ Gonads
/ Hormones
/ Hypothalamic-Pituitary-Gonadal Axis - drug effects
/ Hypothalamic-Pituitary-Gonadal Axis - metabolism
/ Luteinizing Hormone - metabolism
/ Male
/ males
/ neurons
/ Neuropeptides - pharmacology
/ Rats
/ Sperm
/ Testes
