Browsing by Author "Lara Peñaloza, Hernán"
Now showing items 1-13 of 13
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Greiner Gebauer, Monika Marcela; Cárdenas Muñoz, Sergio Patricio; Parra, C.; Bravo, Jaime F.; Avalos, Ana María; Paredes Vargas, Alfonso; Lara Peñaloza, Hernán; Fiedler Temer, Jenny (HUMANA PRESS INC, 2001-08)Morphological studies of granular neurons of the hippocampus have shown that adrenalectomy (ADX) induces the cell death of granular neurons, an effect prevented by corticosterone replacement. We addressed the hypothesis ...
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Aránguiz Urroz, Pablo Daniel; Canales, Jimena; Copaja, Miguel; Troncoso, Rodrigo; Vicencio Bustamante, José Miguel; Carrillo, Constanza; Lara Peñaloza, Hernán; Lavandero González, Sergio; Díaz Araya, Guillermo (2011)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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Dorfman, Mauricio; Ramirez, Victor D.; Stener-Victorin, Elisabet; Lara Peñaloza, Hernán (2009)In rat ovary chronic cold stress increases sympathetic nerve activity, modifies follicular development, and initiates a polycystic condition. To see whether there is a relationship between the previously described changes ...
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Fiedler Temer, Jenny; Jara, P.; Luza, S.; Dorfman, M.; Grouselle, D.; Rage, F.; Lara Peñaloza, Hernán; Arancibia, S. (BLACKWELL PUBLISHING, 2006-05)Recent studies suggest thyrotrophin-releasing hormone (TRH) serves as a neurotransmitter and thereby provides a functional vegetative connection between the brain and the ovary. In the present study, magnocellular neurones ...
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Cárdenas Muñoz, Sergio Patricio; Parra, C.; Bravo, Jaime F.; Morales, P.; Lara Peñaloza, Hernán; Herrera-Marschitz Muller, Mario; Fiedler Temer, Jenny (ELSEVIER SCI IRELAND LTD, 2002-10-04)It has previously been shown that adrenalectomy (ADX) produces apoptosis in the granule cell of the dentate gyrus (DG), and that this effect is prevented by corticosterone replacement. Thus, we have investigated how this ...
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Saller, Sabine; Kunz, L.; Berg, D.; Berg, U.; Lara Peñaloza, Hernán; Urra, J.; Hecht, S.; Pavlik, R.; Thaler, C.J.; Mayerhofer, A. (Oxford University Press, 2014)studyquestion: Is the neurotransmitter dopamine (DA) in the human ovary involved in the generation of reactive oxygen species (ROS)? summary answer: Human ovarian follicular fluid contains DA, which causes the generation ...
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Piquer Franco, Beatriz Gabriela (Universidad de Chile, 2016)El estrés está definido como cualquier estímulo capaz de alterar la homeostasis del organismo, es una reacción fisiológica necesaria para la supervivencia y es la forma que posee el organismo para afrontar una situación ...
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Andrés, Sergio; Cárdenas, Sergio; Lecocq Parra, Claudio; Bravo, Javier; Greiner, Monika; Rojas, Paulina; Morales, Paola; Lara Peñaloza, Hernán; Fiedler Temer, Jenny (2006)Reduction in corticosterone by acute adrenalectomy (5 d) promotes apoptosis in dentate gyrus (DG) granular neurons, an effect concomitant with variations in the expression of the Bcl-2 gene family implicated in apoptotic ...
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Parada, Mirtha; Valenzuela Barra, Gabriela; Delporte, Carla; Lara Peñaloza, Hernán (Universidad de Santiago de Chile, 2014)The estrous cycle disruptor effect of an ethanolic extract (EMATst) from Buddleja globosa leaves and standardized in its main component (verbascoside) was determined in rats after the subcutaneous administration of EMATst. ...
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Dissen, G. A.; Lara Peñaloza, Hernán; Fahrenbach, W. H.; Costa, M. E.; Ojeda, S. R. (Endocrine Society, 1994)When the ovaries of 23-day-old juvenile rats are transplanted to an ectopic site, they recover within 1 week the ability to control gonadotropin secretion via steroid negative feedback. Vascular corrosion casting followed ...
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Blohberger, J.; Kunz, L.; Einwang, D.; Berg, U.; Berg, D.; Ojeda, SR.; Dissen, GA.; Fröhlich, T.; Arnold, GJ.; 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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Squicciarini, V.; Riquelme, R.; Wilsterman, K.; Bentley, G. E.; Lara Peñaloza, Hernán (NLM (Medline), 2018)2018 Society for Endocrinology RFamide-related peptide (RFRP-3) is a regulator of GnRH secretion from the brain, but it can also act in human ovary to influence steroidogenesis. We aimed to study the putative local role ...
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Mayerhofer, Artur; Danilchik, Michael; Pau, K. Y.Francis; Lara Peñaloza, Hernán; Russell, Lonnie D.; Ojeda, Sergio R. (Society for the Study of Reproduction, 1996)The mammalian testis is innervated by extrinsic catecholaminergic nerves and responds to catecholamines with steroid secretion. Although the primate testis has also been shown to be innervated, potential differences in the ...