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Raul Sanchez Gutierrez

DIRECTOR DE CENTRO DE EXCELENCIA

UNIVERSIDAD DE LA FRONTERA

Temuco, Chile

Fisiopatologia de los procesos inflamatorios que afectan el aparato reproductor y su efecto sobre la funcion espermatica Criopreservacion de espermatozoides y efecto sobre parametros reproductivos

Medico cirujano, UNIVERSIDAD DE CHILE. Chile, 1981
Ginecologia y Obstetricia, UNIVERSIDAD DE LA FRONTERA. Chile, 1984
Andrologia, JUSTUS-LIEBIG UNIVERSITAT GIESSEN. Alemania, 1993
Medicina Reproductiva, Conacem. Chile, 2017

PROFESOR TITULAR Full Time

UNIVERSIDAD DE LA FRONTERA

MEDICINA

TEMUCO, Chile

1981 - A la fecha

VICERRECTOR DE INVESTIGACION Y POSTGRADO Full Time

UNIVERSIDAD DE LA FRONTERA

TEMUCO, Chile

2006 - 2014
Director de Centro de Excelencia Part Time

UNIVERSIDAD DE LA FRONTERA

Chile

2016 - A la fecha
Becario/Investigador Full Time

Alexander Von Humboldt

Munich, Alemania

1987 - 1989

1. Patricia Navarrete Gómez, Tesis: “Acción moduladora del oviducto y sus secreciones sobre el efecto de la aracnotoxina de latrodectus mactans en la función espermática”. Doctorado en Ciencias, mención Biología celular y molecular aplicada, Universidad de la Frontera, 2011.
2. Washington Efraín Aguagüiña González, Tesis: “Efecto de antioxidantes sobre la producción de ero y función espermática en la vitrificación aséptica en humano”, Magíster en Ciencias, mención Biología de la reproducción, Universidad de la Frontera, 2010.
3. Olga Teresa Berríos Calvo, Tesis; “Efectos de la vitrificación sobre la función espermática en donantes normozoospérmicos”. Magíster en ciencias mención Biología de la reproducción, Universidad de la Frontera, 2008.
4. Maria Elena Arias Cea, tesis: “Optimización de la técnica de inyección intracitoplasmatica de espermatozoides (icsi) en bovinos y evaluación de la calidad de los embriones generados”. Doctorado en Ciencias, mención Biología celular y molecular aplicada, Universidad de la Frontera, 2013.
5. Carolina Cheuqueman Arevalo, Tesis: “Modulación del estrés oxidativo sobre la producción de embriones in vitro: efecto de melatonina e inducción de tolerancia a estrés oxidativo en ovocitos de bovino”. Doctorado en Ciencias, mención Biología celular y molecular aplicada, Universidad de la Frontera, 2014.
6. Pia Loren Reyes. Tesis: “Exposición de complejos cúmulo–ovocitos bovinos a inductores de estrés oxidativo y nitrosativo: inducción de tolerancia y su efecto sobre la sobrevivencia de embriones producidos in vitro post–criopreservación”. Doctorado en Ciencias, mención Biología celular y molecular aplicada, Universidad de la Frontera, 2020.
7. Mabel Schulz Rubilar. Tesis: “Efecto del daño espermático inducido por criopresevación y bacterias urogenitales sobre la producción de trampas extracelulares de leucocitos (ETs) durante su interacción con espermatozoides humanos”. Doctorado en Ciencias Morfológicas, Universidad de la Frontera, 2020.
8. Carla Rubilar Fincheira. Tesis: "Efecto de la suplementación con Calafate (Berberis microphylla) sobre marcadores metabólicos y alimentarios en ratas con obesidad inducida por la dieta". Doctorado de Ciencias Medicas, Universidad de La Frontera, 2020.

MIEMBRO CORRESPONDIENTE DE LA ACADEMIA DE MEDICINA DE CHILE

ACADEMIA CHILENA DE MEDICINA

Chile, 2015

Miembro Correspondiente Nacional
MIEMBRO CORRESPONDIENTE DE LA ACADEMIA NACIONAL DE MEDICINA DE BRASIL

ACADEMIA NACIONAL DE MEDICINA DE BRASIL

Brasil, 2016

Miembro Correspondiente Internacional


Antioxidant effects of penicillamine against in vitro-induced oxidative stress in human spermatozoa Uribe P.; MeriÃ±o J.; Bravo A.; Zambrano F.; Schulz, M.; Villegas J.V.; SÃ¡nchez R. Article ISI SCOPUS ANDROLOGIA (2020)
Human sperm vitrification: A scientific report Schulz, Mabel; Risopatrón, Jennie; Uribe, Pamela; Isachenko, Evgenia; Isachenko, Vladimir; Sánchez, Raúl Article WOS core, Collection ISI Andrology (2020)
Increase of leukocyte-derived extracellular traps (ETs) in semen samples from acute epididymitis patients– a pilot study Zambrano, F.; Schulz M.; Pilatz A.; Wagenlehner F.; Schuppe H.-C.; Conejeros, I.; Uribe, P.; Taubert, A.; Sanchez, R,; Hermosilla, C. Article WOS core, Cllection ISI JOURNAL OF ASSISTED REPRODUCTION AND GENETICS (2020)
Induction of oxidative stress does not increase the cryotolerance of vitrified embryos Loren, P.; Sánchez-Villalba, E.; Risopatrón, J.; Arias, M.E.; Felmer, R.; Sánchez, R. Article Wos Core. Collection ISI Animal Reproduction Science (2020)
Multiparameter flow cytometry assay for analysis of nitrosative stress status in human spermatozoa Uribe, Pamela; Meriño, Juan; Manquemilla, Emilio; Villagrán, Camila; Vega, Etelinda; Zambrano, Fabiola; Schulz, Mabel; Pezo, Felipe; Villegas, Juana V.; Boguen, Rodrigo; Sánchez, Raúl Article WOS core, Collection ISI Cytometry Part A (2020)
Protective effect of the superoxide dismutase mimetic MnTBAP during sperm vitrification process Uribe, Pamela; Carcamo, Constanza; Navarro, Eliana; Sepulveda, Josefa; Zambrano, Fabiola; Schulz, Mabel; Sanchez, Raul Article ISI ANDROLOGIA (2020)
Rest days and storage of boar semen at 17 degrees C: Effect on motility and sperm concentration Namuncura C.; SÃ¡nchez R.; Pezo F.; Uribe P.; Navarro P.; Zambrano F. Article ISI SCOPUS ANDROLOGIA (2020)
Determination of leucocyte extracellular traps (ETs) in seminal fluid (ex vivo) in infertile patients-A pilot study Schulz, M.; Zambrano F.; Schuppe H.-C.; Wagenlehner F.; Taubert A.; Ulrich G.; SÃ¡nchez R.; Hermosilla C. Article ISI SCOPUS ANDROLOGIA (2019)
Effect of high-fat and vitamin D deficient diet on rat sperm quality and fertility Merino, O; Sanchez, R; Gregorio, MB; Sampaio, F; Risopatron, J Article ISI SCOPUS THERIOGENOLOGY (2019)
LED-based red light photostimulation improves short-term response of cooled boar semen exposed to thermal stress at 37 degrees C Pezo F.; Zambrano F.; Uribe P.; RamÃrez-Reveco A.; Romero F.; SanchÃ©z R. Article ISI SCOPUS ANDROLOGIA (2019)
Monocyte-derived extracellular trap (MET) formation induces aggregation and affects motility of human spermatozoa in vitro Schulz, M.; Zambrano F.; Schuppe H.-C.; Wagenlehner F.; Taubert A.; Gaertner U.; SÃ¡nchez R.; Hermosilla C. Article ISI SCOPUS SYSTEMS BIOLOGY IN REPRODUCTIVE MEDICINE (2019)
Positive effect of butylated hydroxytoluene (BHT) on the quality of cryopreserved cat spermatozoa Jara, Belén; Merino, Osvaldo; Sánchez, Raúl; Risopatrón, Jennie Article ISI SCOPUS CRYOBIOLOGY (2019)
Changes in sperm function and structure after freezing in domestic cat spermatozoa Cheuqueman, C; Faundez, R.; Sanchez, R; Risopatron, J Article ISI SCOPUS ANDROLOGIA (2018)
Concentrations of non-permeable cryoprotectants and equilibration temperatures are key factors for stallion sperm vitrification success Hidalgo, M; Consuegra, C; Dorado, J; Diaz-Jimenez, M; Ortiz, I; Pereira, B; Sanchez, R; Crespo, F Article ISI SCOPUS ANIMAL REPRODUCTION SCIENCE (2018)
Effect of the age of broodstock males on sperm function during cold storage in the trout (Oncorhynchus mykiss) Risopatron, J; Merino, O; Cheuqueman, C; Figueroa, E; Sanchez, R; Farias, JG; Valdebenito, I Article ISI ANDROLOGIA (2018)
Effects of Diet-Induced Obesity and Deficient in Vitamin D on Spermatozoa Function and DNA Integrity in Sprague-Dawley Rats Merino O.; SÃ¡nchez R.; Gregorio B.M.; Sampaio F.J.; RisopatrÃ³n J. Article ISI SCOPUS (2018)
Gradient sperm selection for reproductive techniques in cattle: Is Isolate a suitable replacement for Percoll? Sepulveda, B; Arias, ME; Aguila, L; Zambrano F.; Sanchez, R; Felmer R. Article ISI SCOPUS ANDROLOGIA (2018)
Nitrosative stress in human spermatozoa causes cell death characterized by induction of mitochondrial permeability transition-driven necrosis Uribe P.; Cabrillana M.E.; FornÃ©s M.W.; Treulen F.; Boguen R.; Isachenko V.; Isachenko E.; SÃ¡nchez R.; Villegas J.V. Article ISI SCOPUS Asian Journal of Andrology (2018)
Chapter 6 Technology of Aseptic Cryoprotectant-Free Vitrification of Human ICSI Spermatozoa. Isachenko, Vladimir; Sanchez, Raul; Mallmann, Peter; Rahimi, Gohar; Isachenko, Evgenia Article Methods in molecular biology (Clifton, N.J.) (2017)
Decrease of bovine in vitro embryo production (IVP) efficiency during winter season in a warm-summer Mediterranean climate. Cheuquemán C., Loren P.; Arias M., Risopatrón J.; Felmer R., Álvarez .J; Mogas T., Sánchez R. Article ANDROLOGIA (2017)
Effect of incubation temperature after devitrification on quality parameters in human sperm cells Uribe, P; Rojas, C; Merino, J; Zambrano, F; Villegas, JV; Treulen, F; Boguen, R; Isachenko, V; Isachenko, E; Sanchez, R Article Cryobiology (2017)
Effect of sperm pretreatment with glutathione and membrane destabilizing agents Lysolecithin and Triton X-100, on the efficiency of bovine intracytoplasmic sperm injection (ICSI). Zambrano F., Aguila L.; Arias ME., Sánchez R. Article REPRODUCTION IN DOMESTIC ANIMALS (2017)
Effect of the age of broodstock males on sperm function during cold storage in the trout ( Oncorhynchus mykiss ) Risopatrón, Jennie; Merino, Osvaldo; Cheuquemán, Carolina; Figueroa, Elias; Sanchez, Raul; Farias, Jorge; Valdevenito, Ivan Article ANDROLOGIA (2017)
Melatonin Scavenger Properties against Oxidative and Nitrosative Stress=> Impact on Gamete Handling and In Vitro Embryo Production in Humans and Other Mammals Loren P, Sánchez R; Arias ME, Felmer R; Risopatrón J, Cheuquemán C. Article INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2017)
Nitrosative stress by peroxynitrite impairs ATP production in human spermatozoa Uribe P., Treulen F.; Boguen R., Sánchez R. Article ANDROLOGIA (2017)
Technologies of cryoprotectant-free vitrification of human spermatozoa=> asepticity as criterion of effectiveness Isachenko, Vladimir; Rahimi, Gothar; Mallmann, P; eter, Sanchez; Raul, Isachenko Article Andrology (2017)
Trehalose sustains a higher post-thaw sperm motility than sucrose in vitrified human sperm. Schulz, Mabel; Risopatrón, Jennie; Matus, G; Pineda E, Rojas C; Isachenko, Vladimir; Isachenko, Evgenia; Sánchez, Raul. Article ANDROLOGIA (2017)
Determination of fatty acid profile in ram spermatozoa and seminal plasma. Díaz R., Torres M.A.; Bravo S., Sanchez R. Article ANDROLOGIA (2016)
Short-term storage of salmonids semen in a sodium alginate-based extender. Merino O., Figueroa E.; Cheuqueman C., Valdebenito I.; Isachenko V., Isachenko E.; Farias J., Sánchez R. Article ANDROLOGIA (2016)
Effect of anisomycin, a protein synthesis inhibitor, on the in vitro developmental potential, ploidy and embryo quality of bovine ICSI embryos. Arias ME., Sánchez R. Article ANDROLOGIA (2016)
Effect of short-term exposure of cumulus-oocyte complex to 3-morpholinosydnonimine on in vitro embryo development and gene expression in cattle. Loren, Pia; Cheuquemán, Carolina; Sánchez, Esther; Risopatrón, Jennie; Arias, Maria Elena; Felmer, Ricardo; Sánchez, Raul. Article REPRODUCTION IN DOMESTIC ANIMALS (2016)
Improved preimplantation development of bovine ICSI embryos generated with spermatozoa pretreated with membrane-destabilizing agents lysolecithin and Triton X-100. Zambrano, Fabiola; Aguila, Luis; Arias, María E; Sánchez, Raúl; Felmer, Ricardo Article Theriogenology (2016)
Leukocytes coincubated with human sperm trigger classic neutrophil extracellular traps formation, reducing sperm motility. Zambrano, Fabiola; Carrau, TTessa; Gärtner, Ulrich; Seipp, Aika; Taubert, Anja; Felmer, Ricardo; Sanchez, Raul; Hermosilla, Carlos. Article FERTILITY AND STERILITY (2016)
Modulación del Estado de Óxido-Reducción por Peróxido de Hidrógeno en la Etapa de Maduración Ovocitaria=> Efecto sobre el Desarrollo Embrionario en Bovinos Loren P., Cheuquemán C.; Risopatrón J., Felmer R.; Arias ME., Sánchez R Article INTERNATIONAL JOURNAL OF MORPHOLOGY (2016)
Short-term storage of salmonids semen in a sodium alginate-based extender Merino Osvaldo; Figueroa Elias; Cheuquemán Carolina; Valdebenito Ivan; Isachenko Vladimir; Isachenko Evgenia; Sánchez Raul; Farías Jorge; Risopatrón Jennie Article ANDROLOGIA (2016)
Thiol oxidation by nitrosative stress: Cellular localization in human spermatozoa Cabrillana Maria Eugenia; Uribe Pamela; Villegas Juana; Álvarez Juan; Sánchez Raul; Fornés Miguel Article Systems Biology in Reproductive Medicine (2016)
Use of the fluorescent dye TMRM for mitochondrial membrane potential assessment in human spermatozoa Uribe P., Villegas J.V.; Boguen R., Treulen F.; Sánchez R., Mallmann P.; Isachenko V., Rahimi G. Article ANDROLOGIA (2016)
Cryopreservation of whole ovine ovaries with pedicles as a model for human: parameters of perfusion with simultaneous saturations by cryoprotectants. Isachenko, V; Isachenko, E; Sanchez, R; Dattena, M; Mallmann, P; Rahimi, G Article Clinical laboratory (2015)
Effect of seminal plasma on Atlantic salmon (Salmo salar) sperm vitrification. Figueroa, E; Merino, O; Risopatrón, J; Isachenko, V; Sánchez, R; Effer, B; Isachenko, E; Farias, J G; Valdebenito, I Article Theriogenology (2015)
Effects of short-term exposure of mature oocytes to sodium nitroprusside on in vitro embryo production and gene expression in bovine. Cheuquemán Carolina; Loren Pia; Arias Maria Elena; Risopatrón Jennie; Felmer Ricardo; Álvarez Juan, Mogas Teresa, Sánchez Raul. Article Theriogenology (2015)
High temperature is essential for preserved human sperm function during the devitrification process. Mansilla, M A; Merino, O; Risopatrón, J; Isachenko, V; Isachenko, E; Sánchez, R Article Andrologia (2015)
Infecciones de transmisión sexual silentes: la muestra de orina permite una adecuada detección. Retamal J.; Sanchez R.; Brebi P. Article Revista Chilena de infectologia (2015)
Intracytoplasmic sperm injection affects embryo developmental potential and gene expression in cattle Arias M.E., Risopatrón J.; Sánchez R., Felmer R Article Reproductive Biology (2015)
N-acetyl-L-cysteine pre-treatment protects cryopreserved bovine spermatozoa from reactive oxygen species without compromising the in vitro developmental potential of intracytoplasmic sperm injection embryos Article ANDROLOGIA (2015)
Peroxynitrite-mediated nitrosative stress decreases motility and mitochondrial membrane potential in human spermatozoa. Uribe, Pamela; Boguen, Rodrigo; Treulen, Fabian; Sánchez, Raul; Villegas, Juana. Article MOLECULAR HUMAN REPRODUCTION (2015)
Protective effect of butylated hydroxytoluene on sperm function in human spermatozoa cryopreserved by vitrification technique. Merino, O; Aguagüiña, W E; Esponda, P; Risopatrón, J; Isachenko, E; Isachenko, V; Sánchez, R Article Andrologia (2015)
Addition of superoxide dismutase mimics during cooling process prevents oxidative stress and improves semen quality parameters in frozen/thawed ram spermatozoa. Santiani, Alexei; Evangelista, Shirley; Sepúlveda, Néstor; Risopatrón, Jennie; Villegas, Juana; Sánchez, Raúl Article Theriogenology (2014)
Effect of short-term semen storage in salmon (Oncorhynchus mykiss) on sperm functional parameters evaluated by flow cytometry. Trigo, P; Merino, O; Figueroa, E; Valdebenito, I; Sánchez, R; Risopatrón, J Article Andrologia (2014)
Effect of sperm pretreatment with NaOH and DTT on the efficiency of bovine intracytoplasmic sperm injection. Arias ME, Sanchez R; Risopatron J., Perez L. Article REPRODUCTION FERTILITY AND DEVELOPMENT (2014)
Human Papilloma Virus Frequency in non-Gynecological Tumors in the Araucania Region, Chile Hoffstetter, R; Andana, A; Guzman, P; Ili, CG; Retamal, J; Mora, B; Roa, JC; Sanchez R. Article International Journal of Morphology (2014)
Identification of fatty acids in canine seminal plasma. Díaz, R; Inostroza, K; Risopatrón, J; Sanchez, R; Sepúlveda, N Article Andrologia (2014)
Quality of human spermatozoa: relationship between high-magnification sperm morphology and DNA integrity. Maettner, R; Sterzik, K; Isachenko, V; Strehler, E; Rahimi, G; Alabart, J L; Sánchez, R; Mallmann, P; Isachenko, E Article Andrologia (2014)
Sperm Selection in Frozen/Thawed Semen of Equine: Evaluation of Plasma, Acrosome Membranes and Mitochondrial Membrane Potential Cabrera, P; Sanchez R.; Risopatron J. Article International Journal of Morphology (2014)
Supplementation of IVF medium with melatonin: effect on sperm functionality and in vitro produced bovine embryos. Cheuquemán, C; Arias, M E; Risopatrón, J; Felmer, R; Alvarez, J; Mogas, T; Sánchez, R Article Andrologia (2014)
Validation of SYBR-14 and 6-CFDA to Evaluate the Viability and Plasma Membrane Integrity in Sperm of Chihuahua Canine Breed Salinas, P; Pezo, F; Sanchez, R; Risopatron, J Article International Journal of Morphology (2014)
Stability of reference genes for normalization of reverse transcription quantitative real-time PCR (RT-qPCR) data in bovine blastocysts produced by IVF, ICSI and SCNT Luchsinger C., Arias ME.; Vargas T., Paredes M.; Sánchez R., Felmer Article ZIGOTE (2013)
[Detection of human papilloma virus infection in men]. Silva, Ramón; León, Daniela; Brebi, Priscilla; Ili, Carmen; Roa, Juan C; Sánchez, Raúl Article Revista chilena de infectologÃa : Ã³rgano oficial de la Sociedad Chilena de InfectologÃa (2013)
[Frequency of Chlamydia trachomatis infection in a group of women from Region of AraucanÃa, Chile]. Silva, Ramón; León, Daniela; Viscarra, Támara; Ili, Carmen; Roa, Juan C; Sánchez, Raúl; Guzmán, Pablo; Brebi, Priscilla Article Revista chilena de infectologÃa : Ã³rgano oficial de la Sociedad Chilena de InfectologÃa (2013)
Assessment of sperm function parameters and DNA fragmentation in ejaculated alpaca sperm (Lama pacos) by flow cytometry. Cheuquemán, C; Merino, O; Giojalas, L; Von Baer, A; Sánchez, R; Risopatrón, J Article Reproduction in domestic animals = Zuchthygiene (2013)
Criopreservación de Espermatozoides Caninos a - 80C Salinas P., Sánchez R., Risopatrón J. Article Int. J. Morphol (2013)
Diagnóstico de la infección por virus papiloma humano en el hombre Silva R., León D.; Brevi P., Ili C.; Roa JC., Sánchez R. Article Revista Chilena de Infectologia (2013)
Effect of the addition of two superide dismutase anologues (Tempo and Tempol) to alpaca semen extender for cryopreservation. Santiani A., Evangelista S.; Valdivia M., Risopatrón J. Sánchez R. Article THERIOGENOLOGY (2013)
Frecuencia de la infección por Chlamydia trachomatis en un grupo de mujeres de la Región de la Araucanía, Chile Silva R., León D.; Viscarra T., Ili C.; Roa JC., Sánchez R.; Guzmán P., Brevi P. Article Revista Chilena de Infectologia (2013)
Infecciones de Transmisión Sexual en Semen. El Hombre como Vector de Transmisión Viscarra T., Brebi P.; Andana A., Sánchez R. Article INTERNATIONAL JOURNAL OF MORPHOLOGY (2013)
Infección por el virus del papiloma humano en el hombre y su relación con el cáncer: estado actual y prospectivas Priscilla Brebi M; Ricardo Hartley B; Carmen G. Ili; Juan Carlos Roa S; Raúl Sánchez G Article Revista Internacional de Andrología (2013)
Spermatozoa vitrification of sex-reversed rainbow trout (Oncorhynchus mykiss): Effect of seminal plasma on physiological parameters Figueroa, E; Risopatron, J; Sánchez, R; Isachenko, E; Merino, O; Isachenko, V; Valdebenito, I Article AQUACULTURE (2013)
Stability of reference genes for normalization of reverse transcription quantitative real-time PCR (RT-qPCR) data in bovine blastocysts produced by IVF, ICSI and SCNT. Luchsinger, Charlotte; Arias, María Elena; Vargas, Tamara; Paredes, Marcos; Sánchez, Raúl; Felmer, Ricardo Article Zygote (Cambridge, England) (2013)
Vitrification sperm: An alternative to intracytoplasmic sperm injection in oligoasthenozoospermic patient Sanchez R.; Schulz, M; Risopatron J.; Isachenko V.; Isachenko E. Article REVISTA INTERNACIONAL DE ANDROLOGIA (2013)
Cryoprotectant-free vitrification of fish (Oncorhynchus mykiss) spermatozoa=> first report. Merino O., Sánchez R.; Risopatrón J., Isachenko E.; Katkov I.I., Figueroa E.; Valdebenito I., Mallmann P. Article ANDROLOGIA (2012)
Criopreservación de semen canino con diferentes fracciones proteicas del fluido seminal Jennie Risopatrón, Mariela Muñoz, Raúl Sánchez, Néstor Sepúlveda Article Revista Científica (2012)
Cryoprotectant-free vitrification of fish (Oncorhynchus mykiss) spermatozoa: first report. Merino, O; Sánchez, R; Risopatrón, J; Isachenko, E; Katkov, I I; Figueroa, E; Valdebenito, I; Mallmann, P; Isachenko, V Article Andrologia (2012)
Effect of aracnotoxin from Latrodectus mactans on bovine sperm function: modulatory action of bovine oviduct cells and their secretions. Gómez, P N; Alvarez, J G; Parodi, J; Romero, F; Sánchez, R Article Andrologia (2012)
Effect of tubal explants and their secretions on bovine spermatozoa: modulation of ROS production and DNA damage Gmez P.N.; Alvarez J.G.; Risopatrn J.; Romero F.; Sanchez R. Article REPRODUCTION FERTILITY AND DEVELOPMENT (2012)
Effects of seminal fluid fraction on plasma and acrosome membrane integrity and mitochondrial membrane potential determined by flow cytometry in chilled canine spermatozoa. Traulen F., Sanchez R. Article REPRODUCTION IN DOMESTIC ANIMALS (2012)
Evaluación de la integridad de ADN mediante citometría de flujo en espermatozoides de alpaca criopreservados con análosos de superóxido dismutasa Alexei Santiani A., Shirley Evangelista V., Carolina Cheuquemán A., Alejandra von Baer H., Jennie Risopatrón G., Raúl Sánchez G. Article Revista de investigaciones veterinarias del Perú (2012)
Evaluation of different culture systems with low oxygen tension on the development, quality and oxidative stress-related genes of bovine embryos produced in vitro. Arias, Maria Elena; Sanchez, Raul; Felmer, Ricardo Article Zygote (Cambridge, England) (2012)
Human spermatozoa vitrified in the absence of permeable cryoprotectants: birth of two healthy babies. Isachenko, Vladimir; Isachenko, Evgenia; Petrunkina, Anna M; Sanchez, Raul Article Reproduction, fertility, and development (2012)
Live Birth After Intrauterine Insemination With Spermatozoa From an Oligoasthenozoospermic Patient Vitrified Without Permeable Cryoprotectants Sanchez R.; Isachenko V.; Petrunkina A.M.; Risopatron J.; Schulz, M; Isachenko E. Article JOURNAL OF ANDROLOGY (2012)
Neural differentiation of rat aorta pericyte cells. Montiel-Eulefi, Enrique; Nery, Arthur A; Rodrigues, Lara C; Sánchez, Raúl; Romero, Fernando; Ulrich, Henning Article Cytometry. Part A : the journal of the International Society for Analytical Cytology (2012)
Sperm membrane functionality in the dog assessed by flow cytometry. Cheuquemán, C; Bravo, P; Treulén, F; Giojalas, Lc; Villegas, J; Sánchez, R; Risopatrón, J Article Reproduction in domestic animals = Zuchthygiene (2012)
Vitrification of Human ICSI/IVF Spermatozoa Without Cryoprotectants: New Capillary Technology Isachenko V.; Maettner, R; Petrunkina A.M.; Sterzik, K; Mallmann, P; Rahimi, G; Sanchez R.; Risopatron J.; Damjanoski I.; Isachenko E. Article JOURNAL OF ANDROLOGY (2012)
Vitrified sperm banks: the new aseptic technique for human spermatozoa allows cryopreservation at -86Â Â°C. Sánchez, R; Risopatrón, J; Schulz, M; Villegas, J V; Isachenko, V; Isachenko, E Article Andrologia (2012)
Evaluation of different culture systems with low oxygen tension on the development, quality and oxidative stress-related genes of bovine embryos produced in vitro. Arias ME, Sanchez R Article Zigote (2011)
Canine sperm vitrification with sucrose: effect on sperm function. Sánchez, R; Risopatrón, J; Schulz, M; Villegas, J; Isachenko, V; Kreinberg, R; Isachenko, E Article Andrologia (2011)
Congelación Ultra Rápida de Espermatozoides Humanos: Efecto sobre la Función Espermática y Producción de Especies Reactiva de Oxígeno Berrios S, Olga; Sánchez G, Raúl Article INTERNATIONAL JOURNAL OF MORPHOLOGY (2011)
Cryoprotectant-Free Vitrification of Human Spermatozoa in Large (to 0.5 mL) Volume=> Novel Technology. Isachenko V., Maettner. R.; Petrunkina A. M., Mallmann P.; Rahimi G., Sterzik K.; Sanchez R., Risopatron J.; Damjanoski I., Isaschenko E. Article Clinical Laboratory (2011)
Fish (Oncorhynchus mykiss) spermatozoa cryoprotectant-free vitrification: stability of mitochondrion as criterion of effectiveness. Merino, O; Risopatrón, J; Sánchez, R; Isachenko, E; Figueroa, E; Valdebenito, I; Isachenko, V Article Animal reproduction science (2011)
Los Pericitos: Nuevos Enfoques en la Terapia Regenerativa, Patología Cerebrovascular y Cáncer Montiel-Eulefi, Enrique; Barrientos Díaz, Leticia; Leal, Pamela; Roa, Juan Carlos; Risopatrón, Jennie; Salazar, Luis A; Romero, Fernando; Sánchez, Raúl Article INTERNATIONAL JOURNAL OF MORPHOLOGY (2011)
Molecular characterization, electrophysiological and contraceptive effect of chilean latrodectus venom Navarrete Gómez, Patricia; Ormeño, David; Miranda, Antonio; Sánchez Gutiérrez, Raúl; Romero Mejía, Fernando; Parodi Rivera, Jorge. Article Int. j. morphol (2011)
Participation of the sperm proteasome during in vitro fertilisation and the acrosome reaction in cattle. Sánchez, R; Deppe, M; Schulz, M; Bravo, P; Villegas, J; Morales, P; Risopatrón, J Article Andrologia (2011)
Proteasome activity and proteasome subunit transcripts in human spermatozoa separated by a discontinuous Percoll gradient. Rosales, O; Opazo, C; Diaz, E S; Villegas, J V; Sanchez, R; Morales, P Article Andrologia (2011)
Effect of E. coli or of its soluble factors on mitochondrial membrane potential, phosphatidylserine translocation, viability and motility in human spermatozoa. Schulz M., Sánchez R.; Soto L., Risopatrón J. Article FERTILITY AND STERILITY (2010)
Human sperm chemotaxis depends on critical levels of reactive oxygen species Sánchez R., Sepúlveda C.; Risopatrón J., Villegas J. Article FERTILITY AND STERILITY (2010)
Progesterone sperm chemoattraction may be modulated by its corticosteroid-binding globulin carrier protein. Teves, Maria Eugenia; Guidobaldi, Hector Alejandro; Uñates, Diego Rafael; Sanchez, Raul; Miska, Werner; Giojalas, Laura Cecilia Article Fertility and sterility (2010)
Tetraethylammonium-sensitive K(+) current in the bovine spermatozoa and its blocking by the venom of the Chilean Latrodectus mactans. Parodi, Jorge; Navarrete, Patricia; Marconi, Marcelo; Gutiérrez, Raúl Sánchez; Martínez-Torres, Ataúlfo; Mejías, Fernando Romero Article Systems biology in reproductive medicine (2010)
Trypsin and chymotrypsin are involved in the progesterone-induced acrosome reaction in canine spermatozoa. Deppe, M; Risopatrón, J; Sánchez, R Article Reproduction in domestic animals = Zuchthygiene (2010)
Venom of the Chilean Latrodectus mactans alters bovine spermatozoa calcium and function by blocking the TEA-sensitive K(+) current. Navarrete, Patricia; Martínez-Torres, Ataúlfo; Gutiérrez, Raúl Sánchez; Mejía, Fernando Romero; Parodi, Jorge Article Systems biology in reproductive medicine (2010)
Epiblast Embryo Stem Cells Give Origin to Adult Pluripotent Cell Populations: Primordial Germ Cell, Pericytic and Haematopoyetic Stem Cells. A Review Montiel-Eulefi, E; Sánchez, R; Rojas, M; Bustos-Obregon, E Article INTERNATIONAL JOURNAL OF MORPHOLOGY (2009)
Integrity of mitochondrial membrane potential reflects human sperm quality Espinoza J., Schulz M.; Sánchez R., Villegas J. Article ANDROLOGIA (2009)
Molecular mechanism for human sperm chemotaxis mediated by progesterone Teves ME., Guidobaldi HA.; Uñates DR., Sánchez R.; Miska W., Publicover SJ.; Morales Garcia AA., Giojalas LC. Article PLoS One (2009)
Protective effect of Fallopian tubal fluid against activated leukocyte-induced sperm DNA fragmentation: preliminary results Navarrete P., Espinoza J., Parodi J., Álvarez J., Sánchez R. Article Andrologia (2009)
Acrosomal status and mitochondrial activity of human spermatozoa vitrified with sucrose. Isachenko, E; Isachenko, V; Weiss, J M; Kreienberg, R; Katkov, I I; Schulz, M; Lulat, A G-M I; Risopatrón, M J; Sánchez, R Article Reproduction (Cambridge, England) (2008)
Chemotactic response of frozen-thawed bovine spermatozoa towards follicular fluid. Gil, P I; Guidobaldi, H A; Teves, M E; Uñates, D R; Sanchez, R; Giojalas, L C Article Animal reproduction science (2008)
Effect of Protease Inhibitors on the Acrosome Reaction and Sperm-Zona Pellucida Binding in Bovine Sperm Deppe, M; Morales, P; Sanchez R. Article REPRODUCTION IN DOMESTIC ANIMALS (2008)
Potassium Current in Mature Bovine Spermatozoa Marconi, M; Sanchez R.; Ulrich, H; Romero F. Article SYSTEMS BIOLOGY IN REPRODUCTIVE MEDICINE (2008)
Effects of arachnotoxin on intracellular pH and calcium in human spermatozoa Romero F.; Cunha, MA; Sanchez R.; Ferreira, AT; Schor, N; Oshiro, MEM Article FERTILITY AND STERILITY (2007)
A new technique to evaluate the ability of cryoprotectors to prevent premature acrosome reaction in human spermatozoa Ortloff, C; Deppe, M; Schill, WB; Sanchez R. Article ANDROLOGIA (2006)
Progesterone at the picomolar range is a chemoattractant for mammalian spermatozoa. Teves, María Eugenia; Barbano, Flavia; Guidobaldi, Héctor Alejandro; Sanchez, Raúl; Miska, Werner; Giojalas, Laura Cecilia Article Fertility and sterility (2006)
Bacteria induce expression of apoptosis in human spermatozoa Villegas, J; Schulz, M; Soto L.; Sanchez R. Article APOPTOSIS (2005)
Effect of different concentrations of heparin on canine sperm capacitation in vitro Risopatron J.; Catalan, S; Sepulveda N.; Sanchez R. Article REVISTA CIENTIFICA-FACULTAD DE CIENCIAS VETERINARIAS (2005)
Effects on the quality of frozen-thawed alpaca (Lama pacos) semen using two different cryoprotectants and extenders Santiani, A; Huanca, W; Sapana R.; Huanca, T; Sepulveda, N; Sánchez, R Article ASIAN JOURNAL OF ANDROLOGY (2005)
Influence of reactive oxygen species produced by activated leukocytes at the level of apoptosis in mature human spermatozoa Villegas, J; Schulz, M; Soto L.; Iglesias, T; Miska W.; Sanchez R. Article FERTILITY AND STERILITY (2005)
Alpha-glucosidase in the human epididymis: topographic distribution and clinical application. Peña, P; Risopatrón, J; Villegas, J; Miska, W; Schill, W-B; Sánchez, R Article Andrologia (2004)
Detection of a CBG-like protein in human Fallopian tube tissue Miska W.; Pena P.; Villegas, J; Sanchez R. Article ANDROLOGIA (2004)
DISPOSITIVOS INTRAUTERINOS CON LEVONORGESTREL: UNA NUEVA ALTERNATIVA TERAPÉUTICA EN EL SANGRADO UTERINO ANORMAL DE ORIGEN ORGÁNICO Valdés G, Patricio; Sánchez G, Raúl Article Rev. chil. obstet. ginecol. (2004)
Effect of lysophosphatidyicholine on acrosome reaction in canine spermatozoa Santiani, A; Risopatron, J; Sepulveda, W; Sánchez, R Article REVISTA CIENTIFICA-FACULTAD DE CIENCIAS VETERINARIAS (2004)
Effect of temperature incubation and glycerol addition on the acrosome preservation in human spermatozoa Deppe, M; Ortloff, C; Salinas, G; Bravo D.; Sanchez R. Article REVISTA DE INVESTIGACION CLINICA (2004)
Update on the impact of Chlamydia trachomatis infection on male fertility Gonzales, GF; Munoz, G; Sanchez R.; Henkel R.; Gallegos-Avila, G; Diaz-Gutierrez, O; Vigil, P; Vasquez, F; Kortebani, G; Mazzolli, A; Bustos-Obregon, E Article ANDROLOGIA (2004)
Determinación de células peroxidasa positivas en líquido seminal: ¿es un parámetro confiable para el diagnóstico de infección genital asintomática? Sánchez G, Raúl; Villegas M, Juana; Peña S, Patricio; Miska, Werner; Bernhard Schill, Wolf Article Rev. méd. Chile (2003)
Lack of species-specificity in mammalian sperm chemotaxis Sun, F; Giojalas, LC; Rovasio, RA; Tur-Kaspa, I; Sanchez R.; Eisenbach, M Article DEVELOPMENTAL BIOLOGY (2003)
Reactive oxygen species induce reversible capacitation in human spermatozoa Villegas, J; Kehr, K; Soto L.; Henkel R.; Miska W.; Sanchez R. Article ANDROLOGIA (2003)
Urogenital inflammation: changes of leucocytes and ROS Henkel R.; Maass, G; Hajimohammad, M; Menkveld, R; Stalf, T; Villegas, J; Sanchez R.; Kruger, TF; Schill, WB Article ANDROLOGIA (2003)
Effect of albumin and polyvinyl alcohol on the vitality, motility and acrosomal integrity of canine spermatozoa incubated in vitro. Risopatrón, J; Catalán, S; Miska, W; Schill, W-B; Sánchez, R Article Reproduction in domestic animals = Zuchthygiene (2002)
Endometrio con reacción decidual idiopática en una mujer postmenopáusica: evaluación inmunocitoquímica de receptores de estrógeno, de progesterona y de su proteína transportadora (CBG) Vasconcellos C, Adriana; Villagrán V, Eduardo; Peña, Patricio; Miska, Werner; Sánchez G, Raúl Article Rev. méd. Chile (2002)
Indirect immunofluorescence using monoclonal antibodies for the detection of leukocytospermia: comparison with peroxidase staining Villegas, J; Schulz, M; Vallejos, V; Henkel R.; Miska W.; Sanchez R. Article ANDROLOGIA (2002)
Efecto de enzimas proteolíticas y de la abstinencia sexual en la cuantificación bioquímica de alfa-glucosidasa en plasma seminal humano Peña S, Patricio; Sánchez G, Raúl; Vásquez P, Bélgica; Castillo K, Claudia; Miska, Werner Article Rev. méd. Chile (2001)
Evaluation of the acrosome reaction in human spermatozoa: comparison of cytochemical and fluorescence techniques. Risopatrón, J; Peña, P; Miska, W; Sánchez, R Article Andrologia (2001)
Chromatin condensation and seminal alpha glucosidase variability and their relationship to spermiogram. Sanchez R.; Pena P.; Miska W.; Henkel R. Article Revista médica de Chile (2000)
Localización inmunocitoquímica de la serpina CBG-símil en el sistema reproductor de mamíferos hembra Vásquez, B. ; Peña, P., Veuthey C., Sánchez, R., Miska, W. Article Revista Chilena de Anatomia (2000)
Use of Midodrine and frozen/thawed semen to treat semen transport disturbances. Report of two cases Sanchez R.; Pena P.; Villagran, E Article Revista médica de Chile (2000)
Evidence fot the synthesis and secretion of a CBG-like serpin by human cumulus oophorus and fallopian tubes. Baltes P.; Sánchez R.; Peña P.; Villegas J.; Turley H.; Miska W. Article ANDROLOGIA (1998)
Production and characterization of monoclonal antibodies to the major protein of boar outer dense fibers Villegas J.; Henkel R.; Folch H.; Sánchez R.; Schill W.-B.; Miska W. Article JOURNAL OF REPRODUCTIVE IMMUNOLOGY (1998)
Differentiation of ejaculates showing reactive oxygen species production by spermatozoa o leukocytes. Henkel R.; Ichikawa T.; Sánchez R.; Miska W.; Ohmori H.; Schill W.-B. Article ANDROLOGIA (1997)
Glass wool filtration reduces reactive oxygen species in oligozoospermic patients with leukocytospermia. Sánchez R., Concha M.; Ichikawa T., Henkel R. Article JOURNAL OF ASSISTED REPRODUCTION AND GENETICS (1996)
Migration /sedimentation sperm selection method used in bovine IVF: comparison with washing/ centrifugation. Risopatrón J., Sánchez R., Sepúlveda N., Peña P., Miska W. Article Theriogenology (1996)
Sperm selection methods for intracytoplasmic sperm injection (ICSI) in andrological patients. Sanchez, R; Stalf, T; Khanaga, O; Turley, H; Gips, H; Schill, W B Article Journal of assisted reproduction and genetics (1996)
Comparison of two methods to obtain hemizona pellucida for sperm function tests Sánchez R.; Finkenzeller C.; Schill W.- B.; Miska W Article HUMAN REPRODUCTION (1995)
Evaluation of the acrosome in oligozoospermic patients by simplified triple stain technique Sánchez R.; Fehl P.; Miska W Article ANDROLOGIA (1995)
Can anesthesia influence sperm motility in gamete intrafallopian transfer (GIFT)? Miska W.; Sánchez R.; Kleinstein J.; Schill W-B Article Archive of Andrology (1995)
Evaluation of the acrosomal membrane in bovine spermatozoa: effects of proteinase inhibitors. Sánchez, R; Risopatrón, J; Sepúlveda, G; Peña, P; Miska, W Article Theriogenology (1995)
Pregnancy and birth after intracytoplasmatic sperm injection with spermatozoa from a patient with tail stump syndrome. Stalf T., Sánchez R., Köhn F.-M., Schalles U., Kleinstein J., Hinz V., Tielsch J., Khanaga O., Turley H., Gips H., Schill W.-B. Article Human Reproduction (1995)
Evaluation of nuclear maturity in human spermatozoa obtained by sperm preparation method. Sánchez R., Villagrán E.; Risopatrón J., Célis R. Article ANDROLOGIA (1994)
Selección de espermatozoides de bovino desde semen congelado-descongelado: comparación de dos métodos Risopatrón J, Sánchez, Sepúlveda N, Villagrán E., Peña P. Article Arch. Med. Vet. (1994)
Demonstration of acrosomal membranes using the hypoosmotic swelling test. Sánchez R., Concha M.; Töpfer-Petersen E., Schill W.-B. Article ANDROLOGIA (1993)
Acrosome reaction induced by low temperature increases fusion rate in zona-free hamster ova. Sánchez R., Schill W.-B. Article INTERNATIONAL JOURNAL OF ANDROLOGY (1991)
Influence of incubation time/temperature on acrosome reaction/sperm penetration assay. Sánchez R.; Schill W.-B Article Archivs of Andrology (1991)
Examen de fusión gamética y su aplicación en la clínica andrológica Sánchez R., Celis R., Villagrán E. Article Rev Chil Obstet Ginecol (1991)
Induction of the acrosome reaction in sperm by exposure to low temperature increases their rate of fusion with zona-free hamster oocytes. Sanchez, R; Schill, W B Article International journal of andrology (1991)
The in vitro interactions of eutherian ova and spermatozoa and their significance for orientation and binding of the gametes. Chaudhuri J., Sánchez R. Article ARCHIVES OF ANDROLOGY (1991)
A new method for evaluation of the acrosome reaction in viable human spermatozoa. Sánchez R., Töpfer-Petersen E.; Aitken R., Schill W.-B. Article ANDROLOGIA (1989)
Ultrastructural analysis of the attachment sites of Escherichia coli to the human spermatozoon after in vitro migration through estrogenic cervical mucus. Sánchez R., Villagrán E., Concha M., Cornejo R. Article Int J Fertil . (1989)
Inhibition of stress-induced hyperglycemia by tail pinching or intraventricular enkephalin administration in the rat. Sánchez R., Vargas L Article Brain Research (1988)
[Mollicutes in male infertility: is antibiotic therapy indicated?]. Sanchez, R; Hein, R; Concha, M; Vigil, P; Schill, W B Article Andrologia (0)


Sperm Chemotaxis in Mammals Giojalas L., Guidobaldi H., Sánchez R.; Cosson, JJ BookSection (2015)
Infección e Infertilidad, un enfoque fisiopatológico Sánchez R.; Urrutia M.E; Mackenna, A BookSection (2013)
Vitrification Technique – New Possibilities for Male Gamete Low-Temperature Storage Isachenko E., Mallmann P., Rahimi G., Risopatròn J., Schulz M., Isachenko V., Sanchez R., Katkov I., Kreienberg R.; Igor I. Katkov, BookSection (2012)
Vitrificacion de Espermatozoides Sanchez R., Isachenko E; Capitulo de libro BookSection (2010)
Cryppreservation of spermatozoa: Old routine and new perspectives Isachenko E., Isachenko V., Sanchez R., Katkov I., Kreienberg R.; Capitulo de libro BookSection (2007)
Cryprotectant-free vitriification of spermatozoa Isachenko E., Isachenko V., Katkov I., Sanchez R., Van der Ven H., Nawroth F; Tucker MJ., Liebermann J BookSection (2007)


Method for vitrification human semen and portable kit for aplication of said method Sánchez, Raúl;; Schulz, Mabel; Alavarez, Juan; Obrado, Albert; oquiñena, Enrique Patent (2019)
Method for cryopreservation of human spermatozoa free from seminal plasma using a fast and simple aseptic vitrification- devitrification process: portable kit for carrying out the method; and use of the same for treatment of disorders related to reproductive failures Sanchez R., Risopatron J., Schulz M., Isachenko E., Isachenko V. Patent (2015)
Péptidos derivados del veneno de la araña latrodectus mirabilis, secuencias nucleotídicas para transformar un microorganismo capaz de producir los péptidos; métodos para obtener los péptidos; composiciones farmacéuticas que los contienen y usos de los mismos Romero F., Sanchez R., Bustos O., Miranda A. Patent (2015)


Development of a boar semen cryopreservation medium by modulating oxidative/nitrosative stress and neutrophil extracellular traps (NETs)=> Impact on sperm function andreproductive outcome FONDEF (1180912) Proyecto 2018-2020 Inv. Responsable
Evaluation of the antioxidant FeTPPS on human spermatozoa undergoing nitrosative stress in vitro Alexander von Humboldt Foundation (2H 1302) Proyecto 2017-2019 Inv. Principal
Capacitation of stallion sperm=> Effects on the in vitro production of embryos generated by conventional in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) FONDECYT (1160467) Proyecto 2016-2019 Coinvestigador(a)
Efecto de las alteraciones metabólicas en la reproducción masculina=> Estudio Clínico y Experimental FAPERJ-UFRO (15-0014) Proyecto 2015-2016 Inv. Principal
Detection Kit silent sexually transmitted infections in urine samples. A noninvasive diagnostic tool and inexpensive. CORFO (12IDL2-18157.) Proyecto 2013-2016 Director(a)
INDUCTION AND MODULATION OF OXIDATIVE STRESS IN BOVINE EMBRYOS AT THE OOCYTE STAGE IMPROVES BLASTOCIST RATE=> EXPRESSION OF GENES INVOLVED IN THE REGULATION OF CELL REDOX FONDECYT (1130888) Proyecto 2013-2016 Inv. Responsable
CARACTERIZACION DE LOS GENES INTS1 Y ZNF516 COMO ONCOGENES Y POTENCIALES BIOMARCADORES PARA LA DETECCION TEMPRANA DEL CANCER CERVICOUTERINO FONDECYT (3130630) Proyecto 2012-2015 Inv. Patrocinante
INTRACYTOPLASMIC SPERM INJECTION IN BOVINE=> EFFECTS OF SPERM TREATMENT AND OOCYTE ACTIVATION ON SUBSEQUENT IN VITRO AND IN VIVO EMBRYO DEVELOPMENT. FONDECYT (1120241) Proyecto 2012-2016 Coinvestigador(a)
OXIDATIVE STRESS IN CRYOPRESERVED BOVINE SPERMATOZOA=> EFFECT ON GENE EXPRESSION AND QUALITY OF EMBRYOS PRODUCED IN VITRO FONDECYT (1100449) Proyecto 2010-2013 Inv. Responsable
Efecto de inhibidores de caspasas y proteínas del plasma seminal en la mantención de la función espermática en el proceso de crioprenservación en semen de caninos Sanchez R. Proyecto (2007)
Kit de detección de infecciones de transmisión sexual silente en muestras de orina. Una herramienta de diagnóstico no invasiva y de bajo costo Sanchez R. Proyecto (0)


Cryoprotectant-free vitrification of spermatozoa: Fish as a model of human Isachenko, V; Sanchez, R; Rahimi, G; Mallmann, P; Isachenko, E; Merzenich, M Review ISI SCOPUS ANDROLOGIA (2019)
Preservation of boar semen: An update Pezo F.; Romero, F; Zambrano, F; Sanchez, RS Review ISI SCOPUS REPRODUCTION IN DOMESTIC ANIMALS (2019)