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Histopathological and Histometrical Assessment of Boron Exposure Effects on Mouse Spermatogenesis International Journal of Morphology
Bustos-Obregon,E; Carvallo,M; Hartley-Belmar,R; Sarabia,L; Ponce,C.
Boron is a chemical element widely used in many industrial activities. Exposure to it affects many organs in mammals, mainly reproductive male organs. This work evaluates boron effect in testis. For this purpose, 12mg Boron/L of drinking water, equivalent to Arica tap water, was given for 42 days to 85 days old CFl male mice (experimental group). Another group (control group) drunk tap water of Santiago (0.6mg Boron/L) was used. Testicular histopathology and morphometric analysis was done. These studies showed that Borum induces alterations such as epithelial vacuolization, blockage of the tubular lumen and atrophy. Morphometrical data showed that Borom induces also enlargement of tubular diameter, epithelial height and tubular lumen. Therefore, it is...
Tipo: Journal article Palavras-chave: Boron; Testicular histopathology; Morphometry; Mouse spermatogenesis.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000400039
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Evaluación y Estandarización de la Calidad del Espermiograma: Nuevos Límites Inferiores de Referencia International Journal of Morphology
Espinoza-Navarro,O; Sarabia,L.
El análisis seminal o espermiograma es uno de los parámetros más usados en la evaluación de la fertilidad masculina. La OMS (WHO, 2010), presentó el 5 Manual para el examen y procesamiento del semen humano, documento que fue analizado durante el primer taller de estandarización del análisis seminal (PLEAS), realizado en Santiago de Chile, mayo del 2010. Posteriormente se aplicaron los nuevos valores indicados como "límite de referencia inferior" (LIR), en el estudio del análisis seminal realizados por varios autores (2003 al 2010). Los resultados obtenidos indican que el 81% de los investigadores latino americanos creen que el nuevo manual estandariza mejor la concentración espermática, un 96% está de acuerdo con la nueva subclasificación en la motilidad...
Tipo: Journal article Palavras-chave: Análisis seminal; Espermiograma; Fertilidad masculina; Límite de referencia inferior.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300036
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Protective Effect of Melatonin on Damage in the Sperm Parameters of Mice Exposed to Diazinon International Journal of Morphology
Sarabia,L; Espinoza-Navarro,O; Maurer,I; Ponce,C; Bustos-Obregón,E.
Since normal sperm parameters can be altered by organophosphorous pesticides, this study intended to determine if melatonin is able to prevent the damage on sperm quality after an acute exposure to diazinon. Adult male mice were injected intraperitoneally with melatonin, diazinon (1/3 or 2/3 LD50) or both, and sperm parameters were evaluated on days 1 or 32 post injection. Groups treated with diazinon showed elevated lipid peroxidation levels on day 1 post treatment, while groups pretreated with melatonin before diazinon showed no difference compared to control. Sperm count showed a significant decrease in both diazinon-treated groups only on day 32 post injection; no differences were observed in groups pretreated with melatonin prior to diazinon compared...
Tipo: Journal article Palavras-chave: Melatonin; Organophosphates; Antioxidant; Mouse sperm; Sperm morphology.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400029
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Histological and Functional Organization in Human Testicle: Expression of Receptors c-kit and Androgens International Journal of Morphology
Rodríguez,H; Espinoza-Navarro,O; Sarabia,L; Tamayo,C; Sepúlveda,M; Inostroza,J; Araya,J. C; Moriguchi,K.
The objective of this work was identify the presence of interstitial cells of Cajal, muscle cells, nerves and androgen receptor positive cells in adult human testicle, using immunohistochemical detection for c-kit/CD-117, actin smooth muscle specific (ASMS), neurofilament (N) and androgen receptor (AR), respectively. The samples were obtained from patients (n= 10) with diagnosis of prostate cáncer, with surgery of orchiectomy. Subsequently were processed by histology and for immunohistochemistry using specific antibodies. It showed the presence of cells c-kit/CD-117, with diverse degrees of positivity, distributed mainly in the interstitial peritubular área of the human testicle. The peritubular myoides cells were positive to the presence of the actin...
Tipo: Journal article Palavras-chave: Human reproduction; Testicle; Interstitial Cajal cells; Tubular motility; AR.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300015
Registros recuperados: 4
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