Search Results - "Peñaranda, D.S."

Influence of temperature regime on endocrine parameters and vitellogenesis during experimental maturation of European eel ( Anguilla anguilla ) females by Pérez, L, Peñaranda, D.S, Dufour, S, Baloche, S, Palstra, A.P, Van Den Thillart, G.E.E.J.M, Asturiano, J.F

“…Highlights ► Female European eels were hormonally matured at two thermal regimes. ► A variable thermal regime caused higher fshβ, lhβ, esr1 expression, and…”
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Study of the effects of thermal regime and alternative hormonal treatments on the reproductive performance of European eel males (Anguilla anguilla) during induced sexual maturation by Gallego, V., Mazzeo, I., Vílchez, M.C., Peñaranda, D.S., Carneiro, P.C.F., Pérez, L., Asturiano, J.F.

“…Since 1960, the European eel (Anguilla anguilla) has suffered a dramatic reduction in natural stocks. Breeding in captivity is considered an alternative, but…”
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Standardization of European eel (Anguilla anguilla) sperm motility evaluation by CASA software by Gallego, V., Carneiro, P.C.F., Mazzeo, I., Vílchez, M.C., Peñaranda, D.S., Soler, C., Pérez, L., Asturiano, J.F.

“…The development of powerful computer-assisted sperm analysis software has made kinetic studies of spermatozoa possible. This system has been used and validated…”
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Intracellular changes in Ca2+, K+ and pH after sperm motility activation in the European eel (Anguilla anguilla): Preliminary results by Gallego, V., Martínez-Pastor, F., Mazzeo, I., Peñaranda, D.S., Herráez, M.P., Asturiano, J.F., Pérez, L.

“…Although it is widely accepted that osmolality and ion fluxes are the main factors triggering sperm motility in fish, a complex universal mechanism for sperm…”
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Comparison of two techniques for the morphometry study on gilthead seabream (Sparus aurata) spermatozoa and evaluation of changes induced by cryopreservation by Gallego, V, Peñaranda, D.S, Marco-Jiménez, F, Mazzeo, I, Pérez, L, Asturiano, J.F

“…The development of powerful software has made possible spermatozoa morphology studies. However, some problems have emerged in relation to protocol…”
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Variations in the gene expression of zona pellucida proteins, zpb and zpc , in female European eel ( Anguilla anguilla ) during induced sexual maturation by Mazzeo, I, Peñaranda, D.S, Gallego, V, Hildahl, J, Nourizadeh-Lillabadi, R, Asturiano, J.F, Pérez, L, Weltzien, F.-A

“…Highlights ► Two European eel zona pellucida genes ( zpb and zpc ) were sequenced and characterized. ► zpb and zpc were expressed in liver, ovaries, and other…”
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Effects of hCG as spermiation inducer on European eel semen quality by Asturiano, J.F., Marco-Jiménez, F., Pérez, L., Balasch, S., Garzón, D.L., Peñaranda, D.S., Vicente, J.S., Viudes-de-Castro, M.P., Jover, M.

“…Fish sperm quality has traditionally been estimated by subjective evaluation of motility and sperm concentration. Alternative methods for evaluation of sperm…”
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Improvement of European eel sperm cryopreservation method by preventing spermatozoa movement activation caused by cryoprotectants by Peñaranda, D.S., Pérez, L., Gallego, V., Jover, M., Asturiano, J.F.

“…Sperm production has been obtained from European and Japanese eels, but its quality and quantity tend to be changeable. So, its cryopreservation has been tried…”
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Parthenogenic blastocysts cultured under in vivo conditions exhibit proliferation and differentiation expression genes similar to those of normal embryos by Naturil-Alfonso, C, Saenz-de-Juano, M.D, Peñaranda, D.S, Vicente, J.S, Marco-Jiménez, F

“…Parthenote embryos offer multiple possibilities in biotechnological investigation, such as stem cell research. However, there is still a dearth of knowledge of…”
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Morphometry characterisation of European eel spermatozoa with computer-assisted spermatozoa analysis and scanning electron microscopy by Marco-Jiménez, F., Pérez, L., Castro, M.P. Viudes de, Garzón, D.L., Peñaranda, D.S., Vicente, J.S., Jover, M., Asturiano, J.F.

“…The aim of the present study was to characterise European eel spermatozoa morphometrically, as a basis for future studies on the morphological effects of…”
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Oocyte quality and in vivo embryo survival after ovarian stimulation in nulliparous and multiparous rabbit does by Vicente, J.S., Marco-Jiménez, F., Pérez-García, M., Naturil-Alfonso, C., Peñaranda, D.S., Viudes-de-Castro, M.P.

“…Superovulation treatments aim to stimulate multifollicular recruitment, maximizing the number of oocytes or transferable embryos produced. Factors associated…”
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Using specific recombinant gonadotropins to induce spermatogenesis and spermiation in the European eel (Anguilla anguilla) by Peñaranda, D.S., Gallego, V., Rozenfeld, C., Herranz-Jusdado, J.G., Pérez, L., Gómez, A., Giménez, I., Asturiano, J.F.

“…New specific European eel (Anguilla anguilla) recombinant gonadotropins (aarGths) produced in the ovarian cells of Chinese hamsters (CHO) were used to induce…”
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Relationship between sperm quality parameters and the fatty acid composition of the muscle, liver and testis of European eel by Baeza, R., Mazzeo, I., Vílchez, M.C., Gallego, V., Peñaranda, D.S., Pérez, L., Asturiano, J.F.

“…This study looks at the correlations that fatty acids have with different tissues in the European eel (Anguilla anguilla L.) during hormonally-induced sexual…”
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Temperature modulates the progression of vitellogenesis in the European eel by Mazzeo, I., Peñaranda, D.S., Gallego, V., Baloche, S., Nourizadeh-Lillabadi, R., Tveiten, H., Dufour, S., Asturiano, J.F., Weltzien, F.-A., Pérez, L.

“…Wild female European eels were matured with CPE (carp pituitary extract) under three thermal regimes, two of which were variable (T10–15 and T15–18, moving…”
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Exploring correlations between sex steroids and fatty acids and their potential roles in the induced maturation of the male European eel by Baeza, R., Peñaranda, D.S., Vílchez, M.C., Tveiten, H., Pérez, L., Asturiano, J.F.

“…The present study was undertaken to evaluate the correlations between the fatty acids in the liver and testis and the plasma levels of the hormonal steroids…”
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Effect of thermal regime on fatty acid dynamics in male European eels (Anguilla anguilla) during hormonally-induced spermatogenesis by Baeza, R., Mazzeo, I., Vílchez, M.C., Gallego, V., Peñaranda, D.S., Pérez, L., Asturiano, J.F.

“…Little is known about the role of fat and fatty acids in European eel spermatogenesis. The aim of this research was to study the changes in fat content and to…”
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Vitrification alters rabbit foetal placenta at transcriptomic and proteomic level by Saenz-de-Juano, M D, Marco-Jimenez, F, Schmaltz-Panneau, B, Jimenez-Trigos, E, Viudes-de-Castro, M P, Peñaranda, D S, Jouneau, L, Lecardonnel, J, Lavara, R, Naturil-Alfonso, C, Duranthon, V, Vicente, J S

“…Although numerous studies have demonstrated that cryopreservation alters gene expression, less is known about those embryos that implanted successfully and…”
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Rabbit morula vitrification reduces early foetal growth and increases losses throughout gestation by Vicente, J.S., Saenz-de-Juano, M.D., Jiménez-Trigos, E., Viudes-de-Castro, M.P., Peñaranda, D.S., Marco-Jiménez, F.

“…Several studies have extensively examined structural and biochemical damage induced by cryopreservation that may lead to loss of rabbit embryo viability, but…”
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Does vitrification alter the methylation pattern of OCT4 promoter in rabbit late blastocyst? by Saenz-de-Juano, M.D., Peñaranda, D.S., Marco-Jiménez, F., Vicente, J.S.

“…Vitrification is replacing slow freezing as the most popular method for oocyte and embryo cryopreservation. However, very little information is available on…”
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Evaluation of different diluents for short-term storage of European eel sperm under air-limited conditions by Peñaranda, D.S, Marco-Jiménez, F, Pérez, L, Gallego, V, Mazzeo, I, Vicente, J.S, Jover, M, Asturiano, J.F

“…In order to study different storage conditions, dilution ratios and additives for fresh European eel sperm were assayed to determinate the optimum conditions…”
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