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Decreased spermatogenic and androgenic testicular functions in adult rats submitted to immobilization-induced stress from prepuberty
Almeida, S. A; Petenusci, S. O; Anselmo-Franci, J. A; Rosa-e-Silva, A. A. M; Lamano-Carvalho, T. L.
Affiliation
  • Almeida, S. A; Universidade de Säo Paulo. Faculdade de Medicina de Ribeiräo Preto. Departamento de Fisiologia.
  • Petenusci, S. O; Universidade de Säo Paulo. Faculdade de Odontologia de Ribeiräo Preto. Departamento de Morfologia, Estomatologia e Fisiologia.
  • Anselmo-Franci, J. A; Universidade de Säo Paulo. Faculdade de Odontologia de Ribeiräo Preto. Departamento de Morfologia, Estomatologia e Fisiologia.
  • Rosa-e-Silva, A. A. M; Universidade de Säo Paulo. Faculdade de Medicina de Ribeiräo Preto. Departamento de Fisiologia.
  • Lamano-Carvalho, T. L; Universidade de Säo Paulo. Faculdade de Odontologia de Ribeiräo Preto. Departamento de Morfologia, Estomatologia e Fisiologia.
Rev. bras. pesqui. méd. biol ; Braz. j. med. biol. res;31(11): 1443-8, Nov. 1998. tab, graf
Article in En | LILACS | ID: lil-224480
Responsible library: BR1.1
ABSTRACT
We investigated whether chronic stress applied from prepuberty to full sexual maturity interferes with spermatogenic and androgenic testicular functions. Male Wistar rats (40 days old) were immobilized 6 h a day for 60 days. Following immobilization, plasma concentrations of corticosterone and prolactin increased 135 per cent and 48 per cent, respectively, while plasma luteinizing hormone and testosterone presented a significant decrease of 29 per cent and 37 per cent, respectively. Plasma concentration of follicle-stimulating hormone was not altered in stressed rats. Chronic stress reduced the amount of mature spermatids in the testis by 16 per cent and the spermatozoon concentration in the cauda epididymidis by 32 per cent. A 17 per cent reduction in weight and a 42 per cent decrease in DNA content were observed in the seminal vesicle of immobilized rats but not in its fructose content. The growth and secretory activity of the ventral prostate were not altered by chronic stress.
Subject(s)
Full text: 1 Index: LILACS Main subject: Sexual Maturation / Spermatogenesis / Stress, Physiological / Testis / Hormones / Immobilization Limits: Animals Language: En Journal: Braz. j. med. biol. res / Rev. bras. pesqui. méd. biol Journal subject: BIOLOGIA / MEDICINA Year: 1998 Type: Article / Project document
Full text: 1 Index: LILACS Main subject: Sexual Maturation / Spermatogenesis / Stress, Physiological / Testis / Hormones / Immobilization Limits: Animals Language: En Journal: Braz. j. med. biol. res / Rev. bras. pesqui. méd. biol Journal subject: BIOLOGIA / MEDICINA Year: 1998 Type: Article / Project document