Search Results - "Álvarez, Juan G."

Effect of counting chamber depth on the accuracy of lensless microscopy for the assessment of boar sperm motility by Soler, Carles, Picazo-Bueno, José Á, Micó, Vicente, Valverde, Anthony, Bompart, Daznia, Blasco, Francisco J, Álvarez, Juan G, García-Molina, Almudena

“…Sperm motility is one of the most significant parameters in the prediction of male fertility. Until now, both motility analysis using an optical microscope and…”
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Sperm DNA fragmentation: mechanisms of origin, impact on reproductive outcome, and analysis by Sakkas, Denny, Ph.D, Alvarez, Juan G., M.D., Ph.D

“…Objective To review the mechanisms responsible for DNA fragmentation in human sperm, including those occurring during spermatogenesis and transport through the…”
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Dynamic base-age invariant site index models for Tectona grandis in peninsular India by Tewari, Vindhya P, Álvarez-González, Juan G, von Gadow, Klaus

“…Data from 27 remeasured sample plots were used to evaluate dynamic base-age invariant site index models for teak (Tectona grandis) forests in Karnataka, India…”
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Modelling dominant height growth in plantations of Pseudotsuga menziesii (Mirb.) Franco in Spain by López-Sánchez, Carlos A, Álvarez-González, Juan G, Diéguez-Aranda, Ulises, Rodríguez-Soalleiro, Roque

“…A model for predicting dominant height growth and site index of Pseudotsuga menziesii (Mirb.) Franco in Spain was constructed. Data from stem analysis of 117…”
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A taper function for Pseudotsuga menziesii plantations in Spain by López-Sánchez, Carlos A, Rodríguez-Soalleiro, Roque, Castedo-Dorado, Fernando, Corral-Rivas, Sacramento, Álvarez-González, Juan G

“…Five stem taper models belonging to three different taper function categories were fitted to data corresponding to 282 Pseudotsuga menziesii trees. The trees…”
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Infant exposure of perfluorinated compounds: Levels in breast milk and commercial baby food by Llorca, Marta, Farré, Marinella, Picó, Yolanda, Teijón, Marisa Lopez, Álvarez, Juan G., Barceló, Damià

“…In this study, an analytical method to determine six perfluorinated compounds (PFCs) based on alkaline digestion and solid phase extraction (SPE) followed by…”
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Utility of Antioxidants in the Treatment of Male Infertility: Clinical Guidelines Based on a Systematic Review and Analysis of Evidence by Agarwal, Ashok, Leisegang, Kristian, Majzoub, Ahmad, Henkel, Ralf, Finelli, Renata, Panner Selvam, Manesh Kumar, Tadros, Nicholas, Parekh, Neel, Ko, Edmund Y, Cho, Chak Lam, Arafa, Mohamed, Alves, Marco G, Oliveira, Pedro Fontes, Alvarez, Juan G, Shah, Rupin

“…It is widely accepted that oxidative stress plays an important role in the pathophysiology of male infertility and that antioxidants could have a significant…”
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Evaluation of Radiometric and Atmospheric Correction Algorithms for Aboveground Forest Biomass Estimation Using Landsat 5 TM Data by Lopez-Serrano, Pablito M, Corral-Rivas, Jose J, Diaz-Varela, Ramon A, alvarez-Gonzalez, Juan G, Lopez-Sanchez, Carlos A

“…Solar radiation is affected by absorption and emission phenomena during its downward trajectory from the Sun to the Earth's surface and during the upward…”
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Spatially modeling wildland fire severity in pine forests of Galicia, Spain by Fernández-Alonso, José M., Vega, José A., Jiménez, Enrique, Ruiz-González, Ana D., Álvarez-González, Juan G.

“…Fire is a major disturbance in forests and one of the most important carbon emissions sources, which contributes to climate change. Carbon emissions are…”
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Hexabromocyclododecane in Human Breast Milk: Levels and Enantiomeric Patterns by Eljarrat, Ethel, Guerra, Paula, Martínez, Elena, Farré, Marinella, Alvarez, Juan G, López-Teijón, Marisa, Barceló, Damià

“…Samples of human breast milk (n = 33) from A Coruña (NW of Spain) collected in 2006 and 2007 were analyzed for HBCD diastereoisomers and enantiomers. HBCD was…”
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Superoxide dismutase content in sperm correlates with motility recovery after thawing of cryopreserved human spermatozoa by Buffone, Mariano G., Ph.D, Calamera, Juan C., Ph.D, Brugo-Olmedo, Santiago, M.D, De Vincentiis, Sabrina, M.S, Calamera, Maria M., M.S, Storey, Bayard T., Ph.D, Doncel, Gustavo F., M.D., Ph.D, Alvarez, Juan G., M.D., Ph.D

“…Objective To investigate the correlation between sperm superoxide dismutase (SOD) content and motility recovery after thawing of cryopreserved human sperm,…”
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Processing of semen can result in increased sperm DNA fragmentation by Toro, Estefanía, M.S, Fernández, Silvia, M.S, Colomar, Ana, M.S, Casanovas, Aïda, M.S, Álvarez, Juan G., M.D., Ph.D, López-Teijón, Marisa, M.D, Velilla, Esther, Ph.D

“…Processing of semen for assisted reproductive technologies (ART) entails a number of procedures that include semen liquefaction, removal of seminal plasma by…”
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Characterization of subsets of human spermatozoa at different stages of maturation: implications in the diagnosis and treatment of male infertility by Ollero, Mario, Gil-Guzman, Enrique, Lopez, Mari C., Sharma, Rakesh K., Agarwal, Ashok, Larson, Kjersten, Evenson, Donald, Thomas, Anthony J., Alvarez, Juan G.

“…BACKGROUND: Reactive oxygen species (ROS)-induced damage of membrane phospholipids and DNA in human spermatozoa has been implicated in the pathogenesis of male…”
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An update on clinical utility and diagnostic value of various andrological techniques by Alvarez, Juan G.

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Effect of thawing temperature on the motility recovery of cryopreserved human spermatozoa by Calamera, Juan C., Ph.D, Buffone, Mariano G., Ph.D, Doncel, Gustavo F., M.D., Ph.D, Brugo-Olmedo, Santiago, M.D, de Vincentiis, Sabrina, M.S, Calamera, Maria M., M.S, Storey, Bayard T., Ph.D, Alvarez, Juan G., M.D., Ph.D

“…Objective To investigate the effects of thawing temperature on sperm function after cryopreservation. The technical aspects of sperm cryopreservation have…”
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Critical Appraisal of World Health Organization's New Reference Values for Human Semen Characteristics and Effect on Diagnosis and Treatment of Subfertile Men by Esteves, Sandro C, Zini, Armand, Aziz, Nabil, Alvarez, Juan G, Sabanegh, Edmund S, Agarwal, Ashok

“…In 2010, the World Health Organization established new reference values for human semen characteristics that are markedly lower than those previously reported…”
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Estimating biomass of mixed and uneven-aged forests using spectral data and a hybrid model combining regression trees and linear models by López-Serrano, PM, López-Sánchez, CA, Díaz-Varela, RA, Corral-Rivas, JJ, Solís-Moreno, R, Vargas-Larreta, B, Álvarez-González, JG

“…The Sierra Madre Occidental mountain range (Durango, Mexico) is of great ecological interest because of the high degree of environmental heterogeneity in the…”
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The Role of Oxidative Stress in Spontaneous Abortion and Recurrent Pregnancy Loss: A Systematic Review by Gupta, Sajal, Agarwal, Ashok, Banerjee, Jashoman, Alvarez, Juan G

“…Human reproduction is not considered a highly efficient biological process. Before the end of the first trimester, 30%–50% of conceptions end in spontaneous…”
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Double strand DNA breaks in sperm: the bad guy in the crowd by Alvarez, Juan G., García-Peiró, Agustin, Barros, Alberto, Ferraz, Luís, Sousa, Mário, Sakkas, Denny

“…Purpose The main objective of this opinion paper was to bring to light and enhance our understanding of the amount of double-strand DNA breaks in sperm and…”
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Oxidative stress in an assisted reproductive techniques setting by Agarwal, Ashok, Said, Tamer M, Bedaiwy, Mohamed A, Banerjee, Jashoman, Alvarez, Juan G

“…The manipulation of gametes and embryos in an in vitro environment when performing assisted reproductive techniques (ART) carries the risk of exposure of these…”
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