Environmental tobacco smoke exposure during intrauterine period promotes granulosa cell apoptosis: a prospective, randomized study.
J Matern Fetal Neonatal Med
; 25(10): 1904-8, 2012 Oct.
Article
en En
| MEDLINE
| ID: mdl-22468922
OBJECTIVE: To evaluate the intrauterine effect of cigarette smoke on cell death and DNA damage in follicular cells of fetal ovarian tissue. METHODS: A prospective, randomized study was conducted with 25 female wistar-albino rats. The rats were randomized to be exposed either to cigarette smoke or to room air, initiating from proestrous period and during pregnancy. Newborn female rats were categorized as Group 1 (n = 24) that had been exposed to cigarette smoke during intrauterine life and Group 2 (n = 7) that had been exposed to room air during intrauterine life. Bilateral ooferectomies were performed on the 2nd week of their life. TUNEL (in-situ Terminal Deoxynucleotidyl-Transferase Mediated dUTP-Nick-End Labeling) immunofluorescent staining and immunohistochemical analyses with caspase-3 were used for detection of DNA damage and apoptosis. Primary outcomes were apoptotic index and immunohistochemical scores (HSCORE). Secondary outcomes were ovarian follicle counts and birth weights of newborn rats. RESULTS: There was a significant increase of HSCORE and apoptotic index in Group 1. Increased immunofluorescent staining; evaluating DNA damage, with TUNEL method was observed in granulosa cells in Group 1. CONCLUSIONS: Intrauterine exposure to cigarette smoke diminishes ovarian reserve of female offspring, raising the concern about the generational impact of maternal smoking on ovarian function in the human.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Efectos Tardíos de la Exposición Prenatal
/
Contaminación por Humo de Tabaco
/
Apoptosis
/
Exposición Materna
/
Exposición por Inhalación
/
Células de la Granulosa
Tipo de estudio:
Etiology_studies
/
Evaluation_studies
/
Observational_studies
Límite:
Animals
/
Pregnancy
Idioma:
En
Revista:
J Matern Fetal Neonatal Med
Asunto de la revista:
OBSTETRICIA
/
PERINATOLOGIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Turquía
Pais de publicación:
Reino Unido