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Hematotesticular barrier is altered from early stages of liver cirrhosis:Effect of insulin-like growth factor 1

World Journal of Gastroenterology 2004年第17期10卷 2529-2534页

作者： Inma Castilla-Cortázar nieves diez María García-Fernández Juan Enrique Puche Fernando diez-Caballero Jorge Quiroga Matías Díaz-Sánchez Alberto Castilla Amelia Díaz Casares Isabel Varela-Nieto Jesǘs Prieto Salvador González-Barón Department of Human Physiology University of NavarraPamplonaNavarraSpain Department of Human physiologySchool of MedicineUniversity of MlagaMalagaSpain Department of Human Physiology University of NavarraPamplonaNavarraSpain Department of Human Physiology School of MedicineUniversity of MálagaMalagaSpain Instituto de Investigaciones Biomédicas "Alberto Sols" Consejo Superior de Investigaciones CientificasUniversidad Autónoma de Madrid (CSIC-UAM)MadridSpain Supported by the Spanish Program I+DSAF 99/0072 and SAF 2001/1672 Department of Internal Medicine Hospital SierrallanaTollelavega and School of MedicineUniversity of the Basque Country-Vitoria-GasteizSpain Instituto de Investigaciones Biomedicas"Alberto Sols"Consejo Superior de Investigaciones Cientificas Universidad Autonoma de Madrid(CSIC-UAM) MadridSpain Department of Internal Medicine Liver Unit University of Navarra PamplonaNavarraSpain

AIM: The pathogenesis of hypogonadism in liver cirrhosis is not well understood. Previous results from our laboratory showed that IGF-1 deficiency might play a pathogenetic role in hypogonadism of cirrhosis. The administration of IGF-1 for a short period of time reverted the testicular atrophy associated with advanced experimental cirrhosis.The aim of this study was to establish the historical progression of the described alterations in the testes,explore testicular morphology, histopathology, cellular proliferation, integrity of testicular barrier and hypophysogonadal axis in rats with no ascitic cirrhosis.METHODS: Male Wistar rats with histologically-proven cirrhosis induced with carbon tetrachloride (CC14) for 11 wk,were allocated into two groups (n = 12, each) to receive recombinant IGF-1 (2 μg/100 g·d, sc) for two weeks or vehicle. Healthy rats receiving vehicle were used as control group (n = 12).RESULTS: Compared to controls, rats with compensated cirrhosis showed a normal testicular size and weight and very few histopathological testicular abnormalities.However, these animals showed a significant diminution of cellular proliferation and a reduction of testicular transferrin expression. In addition, pituitary-gonadal axis was altered, with significant higher levels of FSH (P<0.001 vs controls) and increased levels of LH in untreated cirrhotic animals. Interestingly, IGF-1 treatment normalized testicular transferrin expression and cellular proliferation and reduced serum levels of LH (P = ns vs controls, and P

关键词：血睾肝硬化胰岛素生长因子1 消化系统

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