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Efficiency of the process of meiosis in scrotal testes of healthy boars and unilateral abdominal cryptorchid boars.
Teratology 1999; 60(4):209-14T

Abstract

Unilateral abdominal cryptorchidism has usually been correlated with abnormalities in the spermatogenic activity of the scrotal testis. The present study describes the effects of unilateral abdominal cryptorchidism on the meiotic process in scrotal testes from postpubertal boars. The percentage of primary spermatocytes, secondary spermatocytes, and round spermatids was evaluated in testicular smears from scrotal testes of healthy boars and of right-sided unilateral abdominal cryptorchid boars. As compared to the scrotal testes of healthy boars, the scrotal testes of unilateral abdominal cryptorchid boars showed low transformation from primary to secondary spermatocytes (meiosis I), but normal transformation from secondary spermatocytes to round spermatids (meiosis II). The data obtained indicate that spontaneous unilateral abdominal cryptorchidism on the right side induced partial arrest of spermatogenesis at the primary spermatocyte stage that was attributed to anomalies in Sertoli-cell activity. Abnormal paracrine signals from altered Sertoli cells could have resulted in either disturbed mitosis, which led to the formation of spermatocytes with an abnormal DNA content, or abnormalities in the metabolic activity and the organization of the cytoskeleton of primary spermatocytes.

Authors+Show Affiliations

Department of Biology, Faculty of Sciences, University of Girona, 17071 Girona, Spain. dbepn@fc.udg.esNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

10508974

Citation

Pinart, E, et al. "Efficiency of the Process of Meiosis in Scrotal Testes of Healthy Boars and Unilateral Abdominal Cryptorchid Boars." Teratology, vol. 60, no. 4, 1999, pp. 209-14.
Pinart E, Sancho S, Briz MD, et al. Efficiency of the process of meiosis in scrotal testes of healthy boars and unilateral abdominal cryptorchid boars. Teratology. 1999;60(4):209-14.
Pinart, E., Sancho, S., Briz, M. D., Bonet, S., & Badia, E. (1999). Efficiency of the process of meiosis in scrotal testes of healthy boars and unilateral abdominal cryptorchid boars. Teratology, 60(4), pp. 209-14.
Pinart E, et al. Efficiency of the Process of Meiosis in Scrotal Testes of Healthy Boars and Unilateral Abdominal Cryptorchid Boars. Teratology. 1999;60(4):209-14. PubMed PMID: 10508974.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Efficiency of the process of meiosis in scrotal testes of healthy boars and unilateral abdominal cryptorchid boars. AU - Pinart,E, AU - Sancho,S, AU - Briz,M D, AU - Bonet,S, AU - Badia,E, PY - 1999/10/6/pubmed PY - 1999/10/6/medline PY - 1999/10/6/entrez SP - 209 EP - 14 JF - Teratology JO - Teratology VL - 60 IS - 4 N2 - Unilateral abdominal cryptorchidism has usually been correlated with abnormalities in the spermatogenic activity of the scrotal testis. The present study describes the effects of unilateral abdominal cryptorchidism on the meiotic process in scrotal testes from postpubertal boars. The percentage of primary spermatocytes, secondary spermatocytes, and round spermatids was evaluated in testicular smears from scrotal testes of healthy boars and of right-sided unilateral abdominal cryptorchid boars. As compared to the scrotal testes of healthy boars, the scrotal testes of unilateral abdominal cryptorchid boars showed low transformation from primary to secondary spermatocytes (meiosis I), but normal transformation from secondary spermatocytes to round spermatids (meiosis II). The data obtained indicate that spontaneous unilateral abdominal cryptorchidism on the right side induced partial arrest of spermatogenesis at the primary spermatocyte stage that was attributed to anomalies in Sertoli-cell activity. Abnormal paracrine signals from altered Sertoli cells could have resulted in either disturbed mitosis, which led to the formation of spermatocytes with an abnormal DNA content, or abnormalities in the metabolic activity and the organization of the cytoskeleton of primary spermatocytes. SN - 0040-3709 UR - https://www.unboundmedicine.com/medline/citation/10508974/Efficiency_of_the_process_of_meiosis_in_scrotal_testes_of_healthy_boars_and_unilateral_abdominal_cryptorchid_boars_ L2 - https://doi.org/10.1002/(SICI)1096-9926(199910)60:4<209::AID-TERA5>3.0.CO;2-4 DB - PRIME DP - Unbound Medicine ER -