Browsing by Author "201-0010781"
Now showing items 1-20 of 64
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Dissen, Gregory A.; Hill, Diane F.; Costa, Maria E.; Les Dees, W.; Lara Peñaloza, Hernán; Ojeda, Sergio R. (Endocrine Society, 1996)Several members of the neurotrophin (NT) family, including nerve growth factor (NGF), NT-3, and NT-4/5, are expressed in the mammalian ovary. As their respective receptor tyrosine kinases are also found in the gland, the ...
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Lara Peñaloza, Hernán; Ferruz, J. L.; Bustamante, D. A.; Borges, Y.; Ojeda, S. R. (1993)Polycystic ovarian syndrome (PCOS) is one of the most common human ovarian pathologies affecting women of reproductive age. Despite extensive investigation, the etiology of PCOS remains poorly understood. Experimentally, ...
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Bravo, Javier A.; Parra, Claudio S.; Arancibia, Sandor; Andrés, Sergio; Morales Retamales, Paola; Herrera-Marschitz Muller, Mario; Herrera, Luisa; Lara Peñaloza, Hernán; Fiedler Temer, Jenny (2006)Background: Corticosterone reduction produced by adrenalectomy (ADX) induces apoptosis in dentate gyrus (DG) of the hippocampus, an effect related to an increase in the expression of the pro-apoptotic gene bax. However it ...
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Aránguiz Urroz, Pablo Daniel; Canales Urriola, Jimena Andrea; Copaja, Miguel; Troncoso Cotal, Rodrigo; Vicencio Bustamante, José Miguel; Carrillo Ballesteros, Constanza Carolina; Lara Peñaloza, Hernán; Lavandero González, Sergio; Díaz Araya, Guillermo (ELSEVIER SCIENCE BV, 2011-01)Autophagy is a physiological degradative process key to cell survival during nutrient deprivation, cell differentiation and development. It plays a major role in the turnover of damaged macromolecules and organelles, and ...
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Greiner, Monika; Paredes Vargas, Alfonso; Rey Ares, Verónica; Saller, Sabine; Mayerhofer, Artur; Lara Peñaloza, Hernán (ENDOCRINE SOC, 2008-10)Catecholamines present in the mammalian ovary are involved in many normal aspects of ovarian functions, including initial follicle growth, steroidogenesis, and pathological states such as polycystic ovary syndrome. Sympathetic ...
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Araya, Verónica; Jara, Pablo; Lara Peñaloza, Hernán (Sociedad Española de Endocrinología y Nutrición, 2004)El estrés, como un mecanismo general de respuesta simpática exagerada, involucra grandes cambios en la homeostasis del organismo. No existen dudas acerca de las alteraciones que provoca el estrés, tanto en el comportamiento ...
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Lara Peñaloza, Hernán; Dorfman, M.; Venegas Santos, Mauricio; Luza, S. M.; Luna, S. L.; Mayerhofer, A.; Guimaraes, M. A.; Rosa e Silva, A. A. M.; Ramírez, V. D. (WILEY-LISS, INC., 2002)Although it has been known for many years that the ovary is innervated by catecholaminergic nerve fibers and much experimental evidence has strengthened the notion that catecholamines are physiologically involved in the ...
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Dorfman Pessó, Mauricio Daniel; Arancibia, S.; Fiedler Temer, Jenny; Lara Peñaloza, Hernán (SOC STUDY REPRODUCTION, 2003-06)We studied the effects of a chronic intermittent cold stress regime on sympathetic nerve activation and ovarian physiology. This paradigm (4degreesC for 3 h/day, Monday-Friday, for 3 or 4 wk) does not affect basal plasma ...
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Jara, P.; Rage, F.; Dorfman, M.; Grouselle, D.; Barra, R.; Arancibia, S.; Lara Peñaloza, Hernán (2010)We previously reported that centrally-induced sympathetic activation in response to cold stress is associated with a polycystic ovarian condition in rats, and thyrotrophin-releasing hormone (TRH) released locally from the ...
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Luna, Selva Leticia (Universidad de Chile, 2013)El síndrome del ovario poliquístico (SOP), es la patología endocrina más común que afecta las mujeres durante su etapa reproductiva, se presenta en una variedad de fenotipos heterogéneos que van desde una condición de ...
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Developmental and Functional Effects of Steroid Hormones on the Neuroendocrine Axis and Spinal Cord Zubeldia Brenner, L.; Roselli, C. E.; Recabarren, S. E.; González, M. C.; Lara Peñaloza, Hernán (Wiley, 2016)This review highlights the principal effects of steroid hormones at central and peripheral levels in the neuroendocrine axis. The data discussed highlight the principal role of oestrogens and testosterone in hormonal ...
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Montiel, C.; Mendoza, I.; García, C. J.; Awad, Y.; García Olivares, J.; Solís Garrido, L. M.; Lara Peñaloza, Hernán; García, A. G.; Cárdenas, A. M. (WILEY-LISS, DIV JOHN WILEY & SONS INC, 2003-02-01)The contribution of distinct Ca2+-sensitive protein kinases to the regulation of the expression of the synaptosomal-associated protein SNAP-25 was examined in bovine chromaffin cells. Prolonged incubation with high K+ (38 ...
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Efecto de la hormona liberadora de tirotrofina (TRH) en la secreción de prolactina de decidua humana Romero Osses, Carmen; Campos Bastidas, Ximena; Lara Peñaloza, Hernán (Sociedad Chjilena de Obstetricia y Ginecología, 2000)Para prevenir el Síndrome de Distress Respiratorio (RDS), se ha usado el tratamiento conjunto de betametasona y hormona liberadora de tirotrofina (TRH). La TRH actuaría indirectamente sobre la producción del surfactante ...
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Del Campo, Miguel; Piquer, Beatriz; Witherington, Jason; Sridhar, Arun; Lara Peñaloza, Hernán (Frontiers Media S.A., 2019)Sympathetic innervation of the ovary in rodents occurs via two routes: the superior ovarian nerve (SON), which runs along the ovarian ligament, and the plexus nerve (PN), which is mainly associated with the vasculature. ...
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Gálvez, A.; Paredes Vargas, Alfonso; Fiedler Temer, Jenny; Venegas Santos, Mauricio; Lara Peñaloza, Hernán (HUMANA PRESS INC, 1999-04)A 3-wk period of stress promotes the development of ovarian cysts in rats apparently mediated by increased sympathetic nerve activity and ovarian steroid secretion. After 11 wk of stress, these parameters are indistinguishable ...
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Julio Pieper, Marcela; Lara Peñaloza, Hernán; Bravo, Javier A.; Romero Osses, Carmen (2006)Background: Angiogenesis is a crucial process in follicular development and luteogenesis. The nerve growth factor (NGF) promotes angiogenesis in various tissues. An impaired production of this neurotrophin has been associated ...
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Ricu, Manuel A.; Ramirez, Victor D.; Paredes, Alfonso H.; Lara Peñaloza, Hernán (2012)Kisspeptin and its receptor GPR54 have been described as key hypothalamic components in the regulation of GnRH secretion. Kisspeptin is also present in several regions of the central nervous system and the peripheral organs ...
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Amweg, A. N.; Paredes, A.; Salvetti, N. R.; Lara Peñaloza, Hernán; Ortega, H. H. (Elsevier, 2011)Melanocortin receptors (MCRs) are involved in physiological responses to ACTH, as well as to -, - and -melanocytestimulating hormone ( -, - and -MSH). Their expression has previously been analyzed in various bovine ...
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Ricu, Manuel; Paredes, Alfonso; Greiner, Monika; Ojeda, Sergio R.; Lara Peñaloza, Hernán (2008)A substantial fraction of the noradrenergic innervation targeting the mammalian ovary is provided by neurons of the celiac ganglion. Although studies in the rat have shown that noradrenergic nerves reach the ovary near the ...
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Piquer, Beatriz; Fonseca, Jose L.; Lara Peñaloza, Hernán (BioScientifica Ltd., 2017)© 2017 Society for Reproduction and Fertility.Chronic cold stress produces adrenergic overload that can affect fetal development. The placental norepinephrine transporter (NET) clears norepinephrine (NE) from both maternal ...