Search Results - "Leal, C. L. V."

Sperm volumetric dynamics during in vitro capacitation process in bovine spermatozoa by García-Herreros, M., Leal, C. L. V.

“…Previous studies have demonstrated that sperm head morphometry can be used as a potential diagnostic tool for detecting biophysical changes associated with…”
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Consequences of Nitric Oxide Synthase Inhibition During Bovine Oocyte Maturation on Meiosis and Embryo Development by Schwarz, KRL, Pires, PRL, de Bem, THC, Adona, PR, Leal, CLV

“…The importance of nitric oxide synthase (NOS) in bovine oocyte maturation was investigated. Oocytes were in vitro matured with the NOS inhibitor Nw-…”
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Essential actions of melatonin in protecting the ovary from oxidative damage by Cruz, M.H.C., Leal, C.L.V., Cruz, J.F., Tan, D.X., Reiter, R.J.

“…Free radicals and other reactive species are involved in normal ovarian physiology. However, they are also highly reactive with complex cellular molecules…”
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Inhibiting diacylglycerol acyltransferase-1 reduces lipid biosynthesis in bovine blastocysts produced in vitro by Cañón-Beltrán, K., Giraldo-Giraldo, J., Cajas, Y.N., Beltrán-Breña, P., Hidalgo, C.O., Vásquez, N., Leal, C.L.V., Gutiérrez-Adán, A., González, E.M., Rizos, D.

“…Diacylglycerol acyltransferase-1 (DGAT1) is one of the DGAT enzymes that catalyzes the final step in the synthesis of triacylglycerol, which is a major…”
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Seasonal dynamics of sperm morphometric subpopulations and its association with sperm quality parameters in ram ejaculates by Martí, J.I., Aparicio, I.M., Leal, C.L.V., García-Herreros, M.

“…Sperm morphologic assessment is considered an irreplaceable part of standard laboratory routine analyses in the diagnosis of male fertility. Thus, in an…”
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Sperm morphometry: a tool for detecting biophysical changes associated with viability in cryopreserved bovine spermatozoa by García-Herreros, M., Leal, C. L. V.

“…Summary The aim of this study was to determine whether computerised sperm head morphometric analysis can be used as a diagnostic tool for detecting biophysical…”
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Sperm head morphometry in ejaculates of adult marmosets (Callithrix jacchus): A model for studying sperm subpopulations and among-donor variations by Valle, R.R., Nayudu, P.L., Leal, C.L.V., García-Herreros, M.

“…In humans and other mammals, sperm morphology has been considered one of the most important predictive parameters of fertility. The objective was to determine…”
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Gene Expression in Bovine Oocytes and Cumulus Cells After Meiotic Inhibition with the Cyclin‐Dependent Kinase Inhibitor Butyrolactone I by Leal, CLV, Mamo, S, Fair, T, Lonergan, P

“…The aim of this study was to determine the effect of temporary inhibition of meiosis using the cyclin‐dependent kinase inhibitor butyrolactone I (BLI) on gene…”
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Identification of sperm head subpopulations with defined pleiomorphic characteristics in ejaculates of captive Goeldi's monkeys (Callimico goeldii) by Valle, R.R, Arakaki, P.R, Carvalho, F.M, Muniz, J.A.P.C, Leal, C.L.V, García-Herreros, M

“…The aim of this study was to evaluate the incidence of pleiomorphisms and its influence on the distribution of sperm morphometric subpopulations in ejaculates…”
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Endothelial and inducible nitric oxide synthases in oocytes of cattle by Pires, P.R.L., Santos, N.P., Adona, P.R., Natori, M.M., Schwarz, K.R.L., de Bem, T.H.C., Leal, C.L.V.

“…Nitric oxide (NO) is a chemical messenger generated by the activity of the nitric oxide synthases (NOS). The NOS/NO system appears to be involved in oocyte…”
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Nuclear maturation kinetics and in vitro embryo development of cattle oocytes prematured with butyrolactone I combined or not combined with roscovitine by Adona, P.R., Pires, P.R.L., Quetglas, M.D., Schwarz, K.R.L., Leal, C.L.V.

“…Cyclin dependent kinase inhibitors (CDKIs) may be used for pre-maturation culture, but can accelerate nuclear maturation. The aim of the present research was…”
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UV irradiation of pig metaphase chromosomes: maturation-promoting factor degradation, nuclear cytology and cell cycle progression by Leal, C L, Lee, C, Moor, R M

“…Experiments were designed to test two hypotheses. The first was that irradiation of pig metaphase chromosomes would block the normal sequence of cytological…”
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Embryonic Development and Gene Expression in Oocytes Cultured In Vitro in Supplemented Pre-Maturation and Maturation Media by Adona, PR, de Bem, THC, Mesquita, LG, Rochetti, RC, Leal, CLV

“…This study aimed at assessing the effect of the addition of brain-derived neurotrophic factor (10 ng/ml BDNF) and/or cysteamine (100 μm CYS) during…”
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Effect of Cyclin‐dependent Kinase (CDK) Inhibition on Expression, Localization and Activity of Maturation Promoting Factor (MPF) and Mitogen Activated Protein Kinase (MAPK) in Bovine Oocytes by Quetglas, MD, Adona, PR, De Bem, THC, Pires, PRL, Leal, CLV

“…This study aimed to assess the effects of cyclin‐dependent kinase (CDK) inhibition on factors involved in the control of meiosis in bovine oocytes: maturation…”
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Parthenogenetic activation of bovine oocytes using single and combined strontium, ionomycin and 6-dimethylaminopurine treatments by Méo, S C, Yamazaki, W, Ferreira, C R, Perecin, F, Saraiva, N Z, Leal, C L V, Garcia, J M

“…In vitro-matured (IVM) bovine oocytes were activated with single and combined treatments of strontium (S), ionomycin (I) and 6-DMAP (D). Using oocytes IVM for…”
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Effects of supplementation of medium with different antioxidants during in vitro maturation of bovine oocytes on subsequent embryo production by Sovernigo, TC, Adona, PR, Monzani, PS, Guemra, S, Barros, FDA, Lopes, FG, Leal, CLV

“…Contents The aim of this study was to assess the effects of different antioxidants on the levels of reactive oxygen species (ROS) and glutathione (GSH) in…”
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Differential distribution of sperm subpopulations and incidence of pleiomorphisms in ejaculates of captive howling monkeys (Alouatta caraya) by Valle, R. R., Carvalho, F. M., Muniz, J. A. P. C., Leal, C. L. V., García-Herreros, M.

“…The aim of this study was to develop an objective method to determine the incidence of pleiomorphisms and its influence on the distribution of sperm…”
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Influence of Morphology, Follicle Size and Bcl‐2 and Bax Transcripts on the Developmental Competence of Bovine Oocytes by De Bem, THC, Adona, PR, Bressan, FF, Mesquita, LG, Chiaratti, MR, Meirelles, FV, Leal, CLV

“…This study analysed two non‐invasive oocyte selection methods in relation to in vitro embryo development capacity and expression of apoptosis‐related genes…”
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Effect of concentration and exposure period to butyrolactone I on meiosis progression in bovine oocytes by Adona, P.R.(Universidade Estadual Norte Fluminense ,CAPES), Leal, C.L.V.(USP Faculdade de Zootecnia e Engenharia de Alimentos)

“…The effect of concentration and exposure period of bovine oocytes to butyrolactone I (BLI) on meiotic block and in vitro maturation (IVM) kinetics was studied…”
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Oocyte activation and preimplantation development of bovine embryos obtained by specific inhibition of cyclin-dependent kinases by Perecin, F.(UNESP Faculdade de Ciências Agrárias e Veterinárias), Méo, S.C.(Instituto de Zootecnia), Leal, C.L.V.(USP Faculdade de Zootecnia e Engenharia de Alimentos), Garcia, J.M.(UNESP Faculdade de Ciências Agrárias e Veterinárias)

“…The efficiency of bohemine and roscovitine in combination with ionomycin on parthenogenetic activation and initial embryonic development of bovine oocytes was…”
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