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Listar por autor "Vílchez Olivencia, María del Carmen"

Mostrando ítems 1-19 de 19

A comparison of techniques for studying oogenesis in the European eel Anguilla anguilla

Mazzeo ., Ilaria; Giorgini, E.; Gioacchini, G.; Maradonna, F.; Vilchez Olivencia, Maria Carmen; Baloche, S.; Dufour, S.; Pérez Igualada, Luz María; Carnevali, O.; Asturiano Nemesio, Juan Francisco (Blackwell Publishing, 2016)

[EN] A multi-technique approach was used to study the changes occurring in European eel Anguilla anguilla ovaries during hormonally-induced vitellogenesis. Aside from classic techniques used to monitor the vitellogenic ...
Development of sperm vitrification protocols for freshwater fish (Eurasian perch, Perca fluviatilis) and marine fish (European eel, Anguilla anguilla)

Kása, E.; Bernáth, G.; Kollár, T.; Zarski, D.; Lujic, J.; Marinovic, Z.; Bokor, Z.; Hegyi, Á.; Urbányi, B.; Vilchez Olivencia, Maria Carmen; MORINI, MARINA; Peñaranda, D.S.; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco; Horváth, Ákos (Elsevier, 2017)

[EN] Vitrification was successfully applied to the sperm of two fish species, the freshwater Eurasian perch (Perca fluviatilis) and marine European eel (Anguilla anguilla). Sperm was collected, diluted in species specific ...
Efecto del regimen térmico en la calidad de los huevos y el desarrollo embrionario de la anguila europea (Anguilla anguilla)

Vilchez Olivencia, Maria Carmen (Universitat Politècnica de València, 2014-02-21)

[ES] Se ha evaluado el efecto de dos regímenes térmicos (constante y variable) aplicados durante la maduración sexual de hembras de anguila, en la calidad de las puestas y el desarrollo embrionario posterior. Se analizan ...
Effect of the probiotic Lactobacillus rhamnosus on the expression of genes involved in European eel spermatogenesis

Vilchez Olivencia, Maria Carmen; Santangeli, Stefania; Maradonna, Francesca; Gioacchini, Giorgia; Verdenelli, Cristina; Gallego Albiach, Victor; Peñaranda, D.S.; Tveiten, Helge; Pérez Igualada, Luz María; Carnevali, Oliana; Asturiano Nemesio, Juan Francisco (Elsevier, 2015-11)

[EN] Positive effects of probiotics on fish reproduction have been reported in several species. In the present study, 40 male European eels were weekly treated with recombinant hCG for 9 weeks and with three different ...
Effect of thermal regime on fatty acid dynamics in male European eels (Anguilla anguilla) during hormonally-induced spermatogenesis

Baeza Ariño, Rosa; Mazzeo, Ilaria; Vilchez Olivencia, Maria Carmen; Gallego Albiach, Victor; Peñaranda, D.S.; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco (Elsevier, 2014-06-20)

[EN] 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 carry out a quantitative analysis of the fatty acid ...
Exploring correlations between sex steroids and fatty acids and their potential roles in the induced maturation of the male European eel

Baeza Ariño, Rosa; Peñaranda, D.S.; Vilchez Olivencia, Maria Carmen; Tveiten, Helge; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco (Elsevier, 2015-01-01)

[EN] 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 used during eel spermatogenesis, in order to clarify the ...
Identification of the major proteins present in the seminal plasma of European eel, and how hormonal treatment affects their evolution. Correlation with sperm quality

Vilchez Olivencia, Maria Carmen; D. Pla; Gallego Albiach, Victor; Sanz, Libia; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco; Calvete, Juan J.; Peñaranda, D.S. (Elsevier, 2016-11)

[EN] By first time, 2DE protein profile of European eel seminal plasma has been determined. 14 different proteins corresponding to 9 major families were identified in seminal plasma, through hormonal treatment. Some of ...
Influence of the ionic and protein environment on sperm motility activation in the European eel

Vílchez Olivencia, María del Carmen (Universitat Politècnica de València, 2017-11-03)

In general, fish spermatozoa are immotile in the testis. Movement is activated due to the osmotic shock (hypo- or hyperosmotic, depending on fish origin: freshwater or sea water species) experienced when they are released ...
Molecular markers of oocyte differentiation in European eel during hormonally induced oogenesis

Rojo-Bartolomé, Iratxe; Martínez-Miguel, Leticia; Lafont, Anne-Gaëlle; Vilchez Olivencia, Maria Carmen; Asturiano Nemesio, Juan Francisco; Pérez Igualada, Luz María; Cancio, Ibon (Elsevier, 2017)

[EN] Reproduction in captivity is a key study issue in Anguilla anguilla as a possible solution for its dwindling population. Understanding the mechanisms controlling the production of ribosomal building blocks during ...
Nuclear and membrane progestin receptors in the European eel: characterization and expression in vivo through spermatogenesis

MORINI, MARINA; Peñaranda, D.S.; Vilchez Olivencia, Maria Carmen; Nourizadeh-Lillabadi, Rasoul; Lafont, Angael; Dufour, Sylvie; Asturiano Nemesio, Juan Francisco; Weltzien, Finn-Arne; Pérez Igualada, Luz María (Elsevier, 2017)

[EN] Characterization of all the progestin receptor genes (PRs) found in the European eel has been performed. There were five membrane PRs (mPRs): mPR alpha (alpha), mPRAL1 (alpha-likel), mPRAL2 (alpha-like2), mPRy (gamma), ...
Relationship between sperm quality parameters and fatty acid composition of the muscle, liver and testis of European eel

Baeza Ariño, Rosa; Mazzeo, Ilaria; Vilchez Olivencia, Maria Carmen; Gallego Albiach, Victor; Peñaranda, D.S.; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco (Elsevier, 2015-03)

[EN] This study looks at the correlations that fatty acids have with different tissues in the European eel (Anguilla anguilla L.) during hormonally-induced sexual maturation, with different sperm quality parameters. In ...
Role of calcium on the initiation of sperm motility in the European eel

Pérez Igualada, Luz María; Vilchez Olivencia, Maria Carmen; Gallego Albiach, Victor; MORINI, MARINA; Peñaranda, D.S.; Asturiano Nemesio, Juan Francisco (Elsevier, 2016-01)

[EN] Sperm from European eel males treated with hCG(rec), was washed in a calcium free extender, and sperm motility was activated both in the presence (seawater, SW) and in the absence of calcium (NaCI + EDTA), and treated ...
Role of potassium and pH on the initiation of sperm motility in the European eel

Vilchez Olivencia, Maria Carmen; MORINI, MARINA; Peñaranda, D.S.; Gallego Albiach, Victor; Asturiano Nemesio, Juan Francisco; Pérez Igualada, Luz María (Elsevier, 2017)

[EN] The role of potassium from the seminal plasma and/or the activation media was examined by selectively removing from this media, and by testing the use of channel inhibitors and a K-ionophore. Sperm motility was measured ...
Sodium affects the sperm motility in the European eel

Vilchez Olivencia, Maria Carmen; MORINI, MARINA; Peñaranda, D.S.; Gallego Albiach, Victor; Asturiano Nemesio, Juan Francisco; Pérez Igualada, Luz María (Elsevier, 2016-08)

[EN] The role of seminal plasma sodium and activation media sodium on sperm motility was examined by selectively removing the element from these two media, in European eel sperm. Sperm size (sperm head area) was also ...
Standardization of European eel (Anguilla anguilla) sperm motility evaluation by CASA software

Gallego Albiach, Victor; Carneiro, P. C. F.; Mazzeo, Ilaria; Vilchez Olivencia, Maria Carmen; Peñaranda, D.S.; Soler, C.; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco (Elsevier, 2013-04-15)

[EN] The development of powerful computer-assisted sperm analysis software has made kinetic studies of spermatozoa possible. This system has been used and validated for several species, but some technical questions have ...
Temperature modulates testis steroidogenesis in European eel

Peñaranda, D.S.; MORINI, MARINA; Tveiten, Helge; Vilchez Olivencia, Maria Carmen; Gallego Albiach, Victor; Dirks, Ron; van den Thillart, Guido E.E.J.M.; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco (Elsevier, 2016-07)

[EN] This study evaluates the effects of temperature on hCG-induced spermatogenesis in European eel (Anguilla anguilla), subjected to three thermal regimes: T10: 10 degrees C (first 4 weeks), 15 degrees C (next 3 weeks) ...
The expression of nuclear and membrane estrogen receptors in the European eel throughout spermatogenesis

MORINI, MARINA; Peñaranda, D.S.; Vilchez Olivencia, Maria Carmen; Tveiten, Helge; Lafont, Anne-Gaëlle; Dufour, Sylvie; Pérez Igualada, Luz María; Asturiano Nemesio, Juan Francisco (Elsevier, 2017)

[EN] Estradiol (E-2) can bind to nuclear estrogen receptors (ESR) or membrane estrogen receptors (GPER). While mammals possess two nuclear ESRs and one membrane GPER, the European eel, like most other teleosts, has three ...
The subpopulation pattern of eel sperm is affected by post-activation time, hormonal treatment and thermal regime

Gallego Albiach, Victor; Vilchez Olivencia, Maria Carmen; Peñaranda, D.S.; Pérez Igualada, Luz María; Herraez, María Paz; Asturiano Nemesio, Juan Francisco; Martinez-Pastor, Felipe (CSIRO Publishing, 2015)

[EN] There has been a marked reduction in natural stocks of eels (genus Anguilla) over the past 60 years, and the culture of eels is still based on the capture of very large quantities of juveniles. It is necessary to close ...
Transcript levels of the soluble sperm factor protein phospholipase C zeta 1 (PLCZ1) increase through induced spermatogenesis in European eel

Morini, Marina Ange Marie; Peñaranda, D.S.; Vilchez Olivencia, Maria Carmen; Gallego Albiach, Victor; Nourizadeh-Lillabadi, Rasoul; Asturiano Nemesio, Juan Francisco; Weltzien, Finn-Arne; Pérez Igualada, Luz María (Elsevier, 2015-09)

[EN] Activation at fertilization of the vertebrate egg is triggered by Ca2+ waves. Recent studies suggest the phospholipase C zeta (PLC zeta), a sperm-specific protein, triggers egg activation by an 1P3-mediated Ca2+ release ...