Search Results - "Risopatrón, J."

Effect of high-fat and vitamin D deficient diet on rat sperm quality and fertility by Merino, O., Sánchez, R., Gregorio, M.B., Sampaio, F., Risopatrón, J.

“…Vitamin D (VD) is involved in many functions of the reproductive system male. The intake of diets high-fat and vitamin D deficiency (VD−) can cause…”
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Effect of seminal plasma on Atlantic salmon (Salmo salar) sperm vitrification by Figueroa, E., Merino, O., Risopatrón, J., Isachenko, V., Sánchez, R., Effer, B., Isachenko, E., Farias, J.G., Valdebenito, I.

“…This study was designed to test a vitrification method in Atlantic salmon spermatozoa and determine the capacity of seminal plasma (SP) to protect these cells…”
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Effect of the age of broodstock males on sperm function during cold storage in the trout (Oncorhynchus mykiss) by Risopatrón, J., Merino, O., Cheuquemán, C., Figueroa, E., Sánchez, R., Farías, J. G., Valdebenito, I.

“…Summary The knowledge of sperm quality in the broodstock males of different ages is a prerequisite to identify the reproductive ability of cultivated fish for…”
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Freezing dog semen using −80 °C ultra-freezer: Sperm function and in vivo fertility by Pezo, F., Cheuquemán, C., Salinas, P., Risopatrón, J.

“…Long term storage of canine frozen semen is conventionally performed in liquid nitrogen (LN2). However, previous works in freezing canine semen using a −80 °C…”
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Induction of oxidative stress does not increase the cryotolerance of vitrified embryos by Loren, P., Sánchez-Villalba, E., Risopatrón, J., Arias, M.E., Felmer, R., Sánchez, R.

“…•Exposure of bovine oocytes to H2O2 does not improve fertility or embryo development.•Exposure of bovine oocytes to H2O2 does not increase cryotolerance of…”
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Acrosomal status and mitochondrial activity of human spermatozoa vitrified with sucrose by Isachenko, E, Isachenko, V, Weiss, J M, Kreienberg, R, Katkov, I I, Schulz, M, Lulat, A G-M I, Risopatrón, M J, Sánchez, R

“…This study investigates the ability of sucrose to protect spermatozoa against mitochondrial damage, artificial cryoinduction of capacitation, and acrosome…”
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Canine sperm vitrification with sucrose: effect on sperm function by Sánchez, R., Risopatrón, J., Schulz, M., Villegas, J., Isachenko, V., Kreinberg, R., Isachenko, E.

“…Summary The ability of sucrose to protect spermatozoa against mitochondrial damage, artificial acrosome reaction and DNA fragmentation during ultra‐rapid…”
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Viability and DNA fragmentation of rainbow trout embryos (Oncorhynchus mykiss) obtained from eggs stored at 4 °C by Ubilla, A., Valdebenito, I., Árias, M.E., Risopatrón, J.

“…In vitro storage of salmonid eggs leads to aging of the cells causing a decline in quality and reducing their capacity to develop and produce embryos. The…”
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Effects of short-term exposure of mature oocytes to sodium nitroprusside on in vitro embryo production and gene expression in bovine by Cheuquemán, C., Loren, P., Arias, M., Risopatrón, J., Felmer, R., Álvarez, J., Mogas, T., Sánchez, R.

“…Stress tolerance can be induced in embryos by oocyte exposure to hydrostatic pressure, osmotic agents, heat shock, or reactive oxygen species. This study…”
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Effect of sperm pretreatment with sodium hydroxide and dithiothreitol on the efficiency of bovine intracytoplasmic sperm injection by Arias, M E, Sánchez, R, Risopatrón, J, Pérez, L, Felmer, R

“…The efficiency of intracytoplasmic sperm injection (ICSI) in bovines is lower than in other species due, in part, to a lack of optimal conditions for its…”
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Participation of the sperm proteasome during in vitro fertilisation and the acrosome reaction in cattle by Sánchez, R., Deppe, M., Schulz, M., Bravo, P., Villegas, J., Morales, P., Risopatrón, J.

“…In this work, we have investigated the role of the bovine sperm proteasome during in vitro fertilisation (IVF) and the acrosome reaction (AR). Motile…”
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Cryopreservation of Atlantic salmon Salmo salar sperm: effects on sperm physiology by Figueroa, E., Valdebenito, I., Merino, O., Ubilla, A., Risopatrón, J., Farias, J. G.

“…The objective of this study was to determine the effect of freezing on the function in Atlantic salmon Salmo salar spermatozoa. The semen was frozen in…”
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Spermatozoa vitrification of sex-reversed rainbow trout (Oncorhynchus mykiss): Effect of seminal plasma on physiological parameters by Figueroa, E., Risopatrón, J., Sánchez, R., Isachenko, E., Merino, O., Isachenko, V., Valdebenito, I.

“…This study was designed to test a vitrification method on spermatozoa of sex-reversed rainbow trout and determine the ability of sucrose, dimethyl sulfoxide…”
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Sperm cryopreservation with supplementation of α-tocopherol and ascorbic acid in freezing media increase sperm function and fertility rate in Atlantic salmon (Salmo salar) by Figueroa, E., Farias, J.G., Lee-Estevez, M., Valdebenito, I., Risopatrón, J., Magnotti, C., Romero, J., Watanabe, I., Oliveira, R.P.S.

“…The use of α-tocopherol and ascorbic acid in freezing medium prevents lipoperoxidation and damage by ROS (reactive oxygen species); however, the effects of…”
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Effects of Diet-Induced Obesity and Deficient in Vitamin D on Spermatozoa Function and DNA Integrity in Sprague-Dawley Rats by Sampaio, F. J., Gregorio, B. M., Sánchez, R., Merino, O., Risopatrón, J.

“…Obesity has adverse effects on male fertility and usually is diagnosed with a prevalence of vitamin D deficiency (VD-). Discussion on the impact of obesity/VD-…”
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Effect of short-term storage on sperm function in Patagonian blenny (Eleginops maclovinus) sperm by Contreras, P., Ulloa, P., Merino, O., Valdebenito, I., Figueroa, E., Farías, J., Risopatrón, J.

“…Short-term storage of semen is a useful strategy for preservation of fish spermatozoa in reproductive management, however, no information is available on…”
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Trehalose sustains a higher post‐thaw sperm motility than sucrose in vitrified human sperm by Schulz, M., Risopatrón, J., Matus, G., Pineda, E., Rojas, C., Isachenko, V., Isachenko, E., Sánchez, R.

“…Summary One of the cryopreservation methods that best preserves sperm function is vitrification. However, comparative studies have not been performed to…”
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Effect of short-term semen storage in salmon (Oncorhynchus mykiss) on sperm functional parameters evaluated by flow cytometry by Trigo, P., Merino, O., Figueroa, E., Valdebenito, I., Sánchez, R., Risopatrón, J.

“…Summary The short‐term storage of salmonid semen is a viable method for in vitro fertilisation. Previous studies have found that short‐term storage affects…”
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High temperature is essential for preserved human sperm function during the devitrification process by Mansilla, M. A., Merino, O., Risopatrón, J., Isachenko, V., Isachenko, E., Sánchez, R.

“…Summary Sperm vitrification is a cryopreservation method based on high‐speed freezing by direct exposure of cells in liquid nitrogen (N2L), thereby avoiding…”
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Fish ( Oncorhynchus mykiss) spermatozoa cryoprotectant-free vitrification: Stability of mitochondrion as criterion of effectiveness by Merino, O, Risopatrón, J, Sánchez, R, Isachenko, E, Figueroa, E, Valdebenito, I, Isachenko, V

“…The aim of the present investigations was to test a novel technology comprising cryoprotectant-free vitrification of the spermatozoa of rainbow trout and to…”
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