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Listar por autor "Naturil Alfonso, Carmen"

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Efecto del sobrepeso sobre la fertilidad en el modelo conejo

Moreno Moreno-Cid, Almudena (Universitat Politècnica de València, 2019-09-05)

[ES] Actualmente, la obesidad y el sobrepeso constituyen uno de los grandes problemas de salud en todo el mundo, considerados como una epidemia mundial. Son muchas las comorbilidades asociadas a esta enfermedad, pero en ...
Efecto del tratamiento de superovulación y de la edad de la coneja sobre parámetros de calidad ovocitaria

Pérez García, María (Universitat Politècnica de València, 2018-09-18)

[ES] Uno de los factores más importantes que afectan a la infertilidad femenina es la baja calidad ovocitaria. Factores tales como la edad, la nutrición o los tratamientos de superovulación son determinantes tanto en el ...
Effect of different culture systems on mRNA expression in developing rabbit embryos

Saenz de Juano Ribes, María de los Desamparados; Naturil Alfonso, Carmen; Vicente Antón, José Salvador; Marco Jiménez, Francisco (Cambridge University Press (CUP), 2013-02)

[EN] The rate of zygotes in vitro developed to hatched blastocyst stage was evaluated between two different commercial media (TCM-199 and Ham's F10) and two different culture systems (renewal and non-renewal single medium) ...
Effect of Exposure to Heatwave During Blastocyst Formation on Reproductive Performance of Female Rabbits

Marco Jiménez, Francisco; Naturil Alfonso, Carmen; Peñaranda, D.S.; Jiménez Trigos, María Estrella; García Diego, Fernando Juan; Vicente Antón, José Salvador (Wiley, 2014-08)

We examined the effect of female exposure to heatwave during blastocyst formation on their reproductive performance and its effect on transcriptome in blastocyst and endometrial tissue. In this study, a total of 72 rabbit ...
EFFECT OF FEED RESTRICTION IN A RABBIT LINE SELECTED FOR GROWTH RATE ON REPRODUCTIVE PERFORMANCE: OVULATION INDUCTION, OOCYTE QUALITY, EMBRYONARY AND FETAL LOSSES

Naturil Alfonso, Carmen (Universitat Politècnica de València, 2016-11-02)

[EN] The general aim of this thesis was to reproductively characterize females from a rabbit line selected for growth rate and to evaluate the effect of different nutritional strategies (ad libitum and restricted), in order ...
Effect of in vitro and in vivo conditions on development of parthenogenetic rabbit embryos after vitrification

Naturil Alfonso, Carmen; Jiménez Trigos, María Estrella; Vicente Antón, José Salvador; Marco Jiménez, Francisco (Elsevier, 2015-08)

[EN] Parthenote embryos offer multiple opportunities in biotechnological research, so it is important to analyse the possibilities for their cryopreservation in order to establish a biobank. The aim of this experiment was ...
Effects of Cryopreservation on the Meiotic Spindle, Cortical Granule Distribution and Development of Rabbit Oocytes

Jiménez Trigos, María Estrella; Naturil Alfonso, Carmen; Vicente Antón, José Salvador; Marco Jiménez, Francisco (Wiley, 2012-06)

[EN] Although much progress has been made in oocyte cryopreservation since 1971, live offspring have only been obtained in a few species and in rabbits. The aim of our study was to evaluate the effect of vitrification and ...
Effects of Female Dietary Restriction in a Rabbit Growth Line During Rearing on Reproductive Performance and Embryo Quality

Naturil Alfonso, Carmen; Lavara García, Raquel; Vicente Antón, José Salvador; Marco Jiménez, Francisco (Blackwell Publishing, 2016-02)

[EN] Maternal diet prior to mating has an effect on reproductive performance. We analysed the effect of maternal dietary restriction during rearing on reproductive performance, the embryo development and foetal growth. ...
Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in msy2 gene expression

Naturil Alfonso, Carmen; Peñaranda, D.S.; Vicente Antón, José Salvador; Marco-Jiménez, Francisco (Blackwell Publishing, 2017-12)

[EN] Young rabbit females selected for growth rate may have nutritional needs, which may not be met with the common practice of feed restriction during rearing in commercial rabbit production. The aim of this study was to ...
First steps of in vitro gastrulation in rabbit vitrified embryos

Vicente Antón, José Salvador; Parrilla-Ocon, A.; Saenz de Juano Ribes, María de los Desamparados; Naturil Alfonso, Carmen; Marco Jiménez, Francisco (Cryo Letters, 2015-03)

[EN] The in vitro rabbit embryo production and their cryopreservation methodologies such as vitrification generate less viable embryos, and occasionally, with significant differences from those that are not subjected to ...
Foetal and postnatal exposure to high temperatures alter growth pattern but do not modify reproductive function in male rabbits

Marco Jiménez, Francisco; Naturil Alfonso, Carmen; Jiménez Trigos, María Estrella; García Diego, Fernando Juan; Lavara García, Raquel; Vicente Antón, José Salvador (Taylor & Francis, 2014)

Purpose: The foetal origin hypothesis postulates that a number of organ structures and associated functions undergo programming during embryonic and foetal life and the neonatal period, which determines the set point of ...
Influence of zona pellucida thickness on fertilization, embryo implantation and birth

Marco Jiménez, Francisco; Naturil Alfonso, Carmen; Jiménez Trigos, María Estrella; Lavara García, Raquel; Vicente Antón, José Salvador (Elsevier Masson, 2012)

Defective sperm-zona pellucida binding and penetration are the main causes of IVF failure. The purpose of this study was to evaluate the effect of zona pellucida thickness in fertilization failure and test the influence ...
Mala gestión del tiempo en los estudiantes universitarios: efectos de la procrastinación

Naturil Alfonso, Carmen; Peñaranda, David; Marco Jiménez, Francisco; Vicente Antón, José Salvador; Peñaranda (Editorial Universitat Politècnica de València, 2018-09-26)

[EN] Academic procrastination is a fact related to the delay or postpone of academic work until last minute. This phenomenon is evident in a vast majority of university students, and its occurrence is increasing. In order ...
Maternal Exposure to High Temperatures Disrupts OCT4 mRNA Expression of Rabbit Pre-Implantation Embryos and Endometrial Tissue

Marco Jiménez, Francisco; Naturil Alfonso, Carmen; Peñaranda, D.S.; Jiménez Trigos, María Estrella; García Diego, Fernando Juan; Vicente Antón, José Salvador (Wiley, 2013-06)

[EN] Contents: We examined the effect of prolonged high heat stress on reproductive performance and its relationship with gene expression in pre-implantation embryos and endometrial tissue. In experiment 1, primiparous ...
Nuevas metodologías docentes para un nuevo mundo laboral

Sánchez Peñaranda, David; Naturil Alfonso, Carmen; Marco Jiménez, Francisco; Vicente Antón, José Salvador (Editorial Universitat Politècnica de València, 2018-09-26)

[EN] The competences and skills to acquire by the student have evolved, so the educational methodology must also evolve. Society demands professionals with competences and skills in information and communication technologies ...
Oocyte quality and in vivo embryo survival after ovarian stimulation in nulliparous and multiparous rabbit does

Vicente Antón, José Salvador; Marco-Jiménez, Francisco; Pérez-García, M.; Naturil-Alfonso, C.; Peñaranda, D.S.; Viudes-de-Castro, M.P. (Elsevier, 2022-09-01)

[EN] Superovulation treatments aim to stimulate multifollicular recruitment, maximizing the number of oocytes or transferable embryos produced. Factors associated with the superovulation protocol, female characteristics ...
Parthenogenic blastocysts cultured under in vivo conditions exhibit proliferation and differentiation expression genes similar to those of normal embryos

Naturil Alfonso, Carmen; Saenz de Juano Ribes, María de los Desamparados; Peñaranda, D.S.; Vicente Antón, José Salvador; Marco Jiménez, Francisco (Elsevier Masson, 2011)

Parthenote embryos offer multiple possibilities in biotechnological investigation, such as stem cell research. However, there is still a dearth of knowledge of this kind of embryo. In this study, development and ploidy ...
Parthenogenic blastocysts cultured under in vivo conditions exhibited proliferation and differentiation expression genes similar to those normal embryos

Naturil Alfonso, Carmen (Universitat Politècnica de València, 2012-05-10)

Parthenotes embryos offer multiple possibilities in biotechnological investigations, such as stem cell research. However, there is still a dearth of knowledge of this kind of embryos. In this study, we analyzed development ...
Post-warming competence of in vivo matured rabbit oocytes treated with cytoskeletal stabilisation (Taxol) and cytoskeletal relaxant (Cytochalasin B) before vitrification

Jiménez Trigos, María Estrella; Naturil Alfonso, Carmen; Vicente Antón, José Salvador; Marco Jiménez, Francisco (Wiley, 2013-02)

[EN] Contents The aim of this study was to investigate the effect of Taxol and Cytochalasin B on the spindle, chromosome configuration and development to blastocyst stage after parthenogenesis activation of in vivo matured ...
Role of Embryonic and Maternal Genotype on Prenatal Survival and Foetal Growth in Rabbit

Naturil Alfonso, Carmen; Marco Jiménez, Francisco; Jiménez Trigos, María Estrella; Saenz de Juano Ribes, María de los Desamparados; Viudes De Castro, María Pilar; Lavara García, Raquel; Vicente Antón, José Salvador (Wiley, 2015-04)

[EN] The aim of this work was to evaluate the influence of maternal and embryonic genotype on prenatal survival and foetal growth during pregnancy. Embryos were recovered at 48 h of gestation from two different donor ...