Search Results - "Ratto, Marcelo"

Ovulation mechanism in South American Camelids: The active role of β-NGF as the chemical signal eliciting ovulation in llamas and alpacas by Silva, Mauricio, Paiva, Luis, Ratto, Marcelo H.

“…The ovulation-inducing effect of seminal plasma was first suggested in Bactrian camels over 30 years ago, initiating a long search to identify the…”
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Evaluation of the effect of mating, intrauterine deposition of raw seminal plasma or seminal plasma purified β-NGF on endometrial vascularization in llamas by Urra, Felipe, Ratto, Marcelo H., Silva, Mauricio

“…The aim of this study was to evaluate the endometrial vascularization area (EVA) of both uterine horns in llamas subjected to different intrauterine treatments…”
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Camelids: an old family spread over four continents by Faye, Bernard, Ratto, Marcelo H

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Source and localization of ovulation-inducing factor/nerve growth factor in male reproductive tissues among mammalian species by Bogle, Orleigh A, Carrasco, Rodrigo A, Ratto, Marcelo H, Singh, Jaswant, Adams, Gregg P

“…The objectives of the study were to compare the presence and localization of ovulation-inducing factor (OIF)/nerve growth factor (NGF) inmale reproductive…”
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The ovulatory and luteotropic actions of the male-derived beta-nerve growth factor in South American camelids by Paiva, Luis, Silva, Mauricio, Carrasco, Rodrigo, Ratto, Marcelo Héctor

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Neuroanatomical basis of the nerve growth factor ovulation–induction pathway in llamas by Carrasco, Rodrigo A., Singh, Jaswant, Ratto, Marcelo H., Adams, Gregg P.

“…The objective of the study was to characterize the anatomical framework and sites of action of the nerve growth factor (NGF)-mediated ovulation-inducing system…”
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New insights of the role of β-NGF in the ovulation mechanism of induced ovulating species by Ratto, Marcelo H, Berland, Marco, Silva, Mauricio E, Adams, Gregg P

“…The type of stimuli triggering GnRH secretion has been used to classify mammalian species into two categories: spontaneous or induced ovulators. In the former,…”
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nerve of ovulation-inducing factor in semen by Ratto, Marcelo H, Leduc, Yvonne A, Valderrama, Ximena P, van Straaten, Karin E, Delbaere, Louis T. J, Pierson, Roger A, Adams, Gregg P

“…A component in seminal fluid elicits an ovulatory response and has been discovered in every species examined thus far. The existence of an ovulation-inducing…”
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Ovulation-inducing factor in seminal plasma: A review by Adams, Gregg P, Ratto, Marcelo H

“…Ovulation in mammals involves pulsatile release of GnRH from the hypothalamus into the hypophyseal portal system with subsequent release of LH from the…”
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Seminal Plasma Induces Ovulation in Llamas in the Absence of a Copulatory Stimulus: Role of Nerve Growth Factor as an Ovulation-Inducing Factor by Berland, Marco A, Ulloa-Leal, Cesar, Barría, Miguel, Wright, Hollis, Dissen, Gregory A, Silva, Mauricio E, Ojeda, Sergio R, Ratto, Marcelo H

“…Llamas are considered to be reflex ovulators. However, semen from these animals is reported to be rich in ovulation-inducing factor(s), one of which has been…”
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The effect of seminal plasma β-NGF on follicular fluid hormone concentration and gene expression of steroidogenic enzymes in llama granulosa cells by Valderrama, Ximena P, Goicochea, Jose F, Silva, Mauricio E, Ratto, Marcelo H

“…Nerve growth factor (β-NGF) from llama seminal plasma has been described as a potent ovulatory and luteotrophic molecule after intramuscular or intrauterine…”
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Review: Unveiling the effect of beta-nerve growth factor on the reproductive function in llamas and cows by Ratto, Marcelo H, Paiva, Luis, Carrasco, Rodrigo, Silva, Mauricio E, Ulloa-Leal, Cesar, Ratto, Vicente F, Goicochea, Jose

“…The actions of the beta-nerve growth factor (β-NGF) on the neuroendocrine and reproductive system have challenged classical views on the control of…”
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Editorial: Reproduction in South American Camelids by Ratto, Marcelo, Miragaya, Marcelo Horacio

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Is seminal nerve growth factor-induced luteinizing hormone release in camelids mediated at the hypothalamus? by Carrasco, Rodrigo A, Pezo, Sergio, Zwiefelhofer, Eric M, Lanigan, Emily E, Singh, Jaswant, Berland, Marco A, Ulloa-Leal, Cesar, Ratto, Marcelo H, Adams, Gregg P

“…Seminal nerve growth factor induces ovulation in camelids by influencing the secretion of gonadotrophin-releasing hormone (GnRH) into the portal vessels of the…”
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Ovulation-inducing factor: a protein component of llama seminal plasma by Ratto, Marcelo H, Huanca, Wilfredo, Adams, Gregg P

“…Previously, we documented the presence of ovulation-inducing factor (OIF) in the seminal plasma of llamas and alpacas. The purpose of the study was to define…”
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Biochemical isolation and purification of ovulation-inducing factor (OIF) in seminal plasma of llamas by Ratto, Marcelo H, Delbaere, Louis T J, Leduc, Yvonne A, Pierson, Roger A, Adams, Gregg P

“…The objective of the present study was to isolate and purify the protein fraction(s) of llama seminal plasma responsible for the ovulation-inducing effect of…”
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Effect of mating on mRNA and protein expression of beta nerve growth factor and its receptor, TrKA, in the oviduct of llama (Lama glama) by Sari, Luciana M., Zampini, Renato, Argañaraz, Martin E., Ratto, Marcelo H., Apichela, Silvana A.

“…Copulation produces different stimuli in the female reproductive tract in camelids, which lead to ovulation. Expression of β‐nerve growth factor (β‐NGF) and…”
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Laterality of Ovulation and Presence of the Embryo Do Not Affect Uterine Horn Blood Flow During the First Month of Gestation in Llamas by Ratto, Marcelo H, Urra, Felipe, Silva, Mauricio

“…We determined if laterality of ovulation and intrauterine embryo location differentially induces changes in the mesometrial/endometrial vascularization area…”
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Cetrorelix suppresses the preovulatory LH surge and ovulation induced by ovulation-inducing factor (OIF) present in llama seminal plasma by Silva, Mauricio E, Smulders, Juan P, Guerra, Monserrat, Valderrama, Ximena P, Letelier, Claudia, Adams, Gregg P, Ratto, Marcelo H

“…The purpose of the study was to determine if the effect of llama OIF on LH secretion is mediated by stimulation of the hypothalamus or pituitary gland. Using a…”
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Oocyte Quality, In Vitro Fertilization and Embryo Development of Alpaca Oocytes Collected by Ultrasound-Guided Follicular Aspiration or from Slaughterhouse Ovaries by Landeo, Leandra, Zuñiga, Michele, Gastelu, Teddy, Artica, Marino, Ruiz, Jaime, Silva, Mauricio, Ratto, Marcelo H

“…The morphological quality and the in vitro developmental competence of cumulus-oocyte complexes (COCs) collected from in vivo or slaughtered alpacas was…”
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