Browsing by Author "201-0010781"
Now showing items 61-77 of 77
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Rosa E Silva, Alzira; Guimaraes, Marco Aurelio; Padmanabhan, Vasantha; Lara Peñaloza, Hernán (ENDOCRINE SOC, 2003-10-01)Administration of estradiol valerate (EV) to adult rats leads to anovulation and cystic ovarian morphology. Sympathetic ovarian nerve denervation (SONX) overcomes this disruption. In this study, we determined whether EV ...
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Blohberger, J.; Kunz, L.; Einwang, D.; Berg, U.; Berg, D.; Ojeda, S. R.; Dissen, G. A.; Fröhlich, T.; Arnold, G. J.; Soreq, H.; Lara Peñaloza, Hernán; Mayerhofer, A. (Nature, 2015)Proliferation, differentiation and death of ovarian cells ensure orderly functioning of the female gonad during the reproductive phase, which ultimately ends with menopause in women. These processes are regulated by several ...
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Jara Picas, Pablo Enrique (Universidad de ChilePrograma Cybertesis, 2007)
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Lara Peñaloza, Hernán; Porcile, Arnaldo; Espinoza, Jaime; Romero Osses, Carmen; Luza, Sandra M.; Fuhrer, Juan; Miranda, Cristian; Roblero, Luis (2001)We investigated the possibility that norepinephrine from the human ovary is released after nerve stimulation and that this neurotransmitter is coupled to a steroidogenic response. Biologically significant levels of both ...
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Dorfman Pessó, Mauricio Daniel (Universidad de ChileCyberDocs, 2008)El estrés crónico, en combinación con la sobrealimentación y la falta de ejercicio, contribuye al desarrollo del síndrome metabólico, aumentando el riesgo de enfermedades cardiovasculares y diabetes tipo 2. Se ha demostrado ...
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Lozada González, Patricia Emita (Universidad de ChilePrograma Cybertesis, 2006)El factor de crecimiento nervioso (NGF) es una neurotrofina, que inicialmente fue descrita en el cerebro, y que en los últimos años ha adquirido importancia, debido a que actúa en sitios no-neuronales, entre ellos el ...
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Greiner Gebauer, Monika Marcela; Paredes Vargas, Alfonso; Araya, Verónica; Lara Peñaloza, Hernán (HUMANA PRESS INC, 2005-12)This article presents a review of the role of the sympathetic activity in ovarian pathologies affecting reproductive function. We provide a succinct outline of the findings of our group in this area. The participation of ...
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Greiner Gebauer, Monika Marcela (Universidad de Chile, 2006)La activación del sistema nervioso simpático ha sido reconocida como uno de los factores que forman parte de la etiología del síndrome de ovario poliquístico (SOP) en humanos y en modelo de rata. La literatura muestra datos ...
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Toufexis, D.; Rivarola, M. A.; Lara Peñaloza, Hernán; Viau, V. (British Society for Neuroendocrinology, 2014)There exists a reciprocal relationship between the hypothalamic-pituitary-adrenal (HPA) and the hypothalamic-pituitary-gonadal (HPG) axes, wherein the activation of one affects the function of the other and vice versa. ...
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Paredes Vargas, Alfonso; Gálvez, Anita; Leyton Canales, Víctor; Zúñiga Aravena, Gabriel; Fiedler Temer, Jenny; Bustamante Cádiz, Diego; Lara Peñaloza, Hernán (HUMANA PRESS INC, 1998-06)The ovarian content of neuropeptide Y (NPY) (colocalized with NE) was significantly decreased. These results suggest that NE synthesis and its secretion are increased during this period and correlate with the increase in ...
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Paredes, Alfonso; Gálvez, Anita; Leyton, Victor; Aravena, Gabriel; Fiedler Temer, Jenny; Bustamante, Diego; Lara Peñaloza, Hernán (1998)Activation of the sympathetic innervation precedes the induction of polycystic ovaries in rats given estradiol valerate (EV). The mechanism of induction by EV may thus involve both direct and neurogenic components. We ...
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Paredes, Alfonso H.; Salvetti, Natalia R.; Diaz, Ariel E.; Dallard, Bibiana E.; Ortega, Hugo H.; Lara Peñaloza, Hernán (2011)Cystic ovarian disease (COD) is an important cause of abnormal estrous behavior and infertility in dairy cows. COD is mainly observed in high-yielding dairy cows during the first months post-partum, a period of high stress. ...
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Cruz, Gonzalo; Barra, Rafael; González, Daniel; Sotomayor Zárate, Ramón; Lara Peñaloza, Hernán (2012)Objective: To investigate the developmental window in which E2 exposure produces irreversible changes in ovarian function resulting in polycystic ovary. Design: Basic experimental study. Setting: University animal laboratory. ...
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Crisosto King, Nicolás; Sir Petermann, Teresa; Greiner, Monika; Maliqueo Yevilao, Manuel; Moreno, Marcela; Aedo, Paola; Lara Peñaloza, Hernán (2009)Polycystic ovary syndrome (PCOS) is characterized by the presence of hyperandrogenism and an increased follicular mass probably determined by deregulation of locally produced factors. Anti-Müllerian hormone (AMH) is a ...
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Lara Peñaloza, Hernán; Hill, Diane F.; Katz, Kathy H.; Ojeda, Sergio R.; Ojeda, Sergio R. (1990)The rat ovary is innervated by sympathetic nerve fibers. Since the development and survival of peripheral sympathetic neurons innervating nonreproductive organs have been shown to depend on the production of nerve growth ...
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Luza Cornejo, Sandra Magali; Arancibia, S.; Venegas Santos, Mauricio; Lara Peñaloza, Hernán (KARGER, 2003-04)We studied the effect of thyrotropin-releasing hormone (TRH) applied centrally on the sympathetic activity of the ovary in female rats. Intracerebroventricular (i.c.v.) administration of a dose of 25 ng/kg weight produced ...
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Bernuci, M. P.; Leite, C. M.; Barros, P.; Kalil, B.; Leoni, G. B.; Bianco Borges, B. Del; Franci, C. R.; Szawka, R. E.; Lara Peñaloza, Hernán; Anselmo Franci, J. A. (British Society for Neuroendocrinology, 2013)Cold stress-induced ovarian sympathetic activation is associated with the development of ovarian cysts in rats. Although we have hypothesised that polycystic ovary (PCO) features induced by cold stress, as prevented by ...