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<dim:field element="contributor" qualifier="advisor" language="" mdschema="dc">Rodríguez Artiles, I.</dim:field>
<dim:field authority="90241a30-197f-410c-ae71-b4d8abdcfe8d" element="contributor" qualifier="author" confidence="UNSET" language="" mdschema="dc">Cortés García, Baltasar</dim:field>
<dim:field element="date" qualifier="accessioned" language="" mdschema="dc">2015-05-20T08:28:40Z</dim:field>
<dim:field element="date" qualifier="available" language="" mdschema="dc">2015-05-20T08:28:40Z</dim:field>
<dim:field element="date" qualifier="issued" language="" mdschema="dc">2015</dim:field>
<dim:field element="identifier" qualifier="uri" language="" mdschema="dc">http://hdl.handle.net/10396/12741</dim:field>
<dim:field element="description" language="es_ES" mdschema="dc">Premio extraordinario de Trabajo Fin de Máster curso 2012-2013.Medicina, Sanidad y Mejora Animal</dim:field>
<dim:field element="description" qualifier="abstract" language="es_ES" mdschema="dc">El ejercicio continuado induce daños en la calidad espermática alterando entre&#13;
otros parámetros la morfología de los espermatozoides, esto es debido a la alta&#13;
producción de radicales libres. En experiencias previas, hemos probado la NAcetilcisteína&#13;
y el trans-reveratrol administrados como suplemento de la dieta en un&#13;
modelo de natación forzada en ratones CD-1, y los resultados demostraron que estos&#13;
antioxidantes reducen el daño causado por el ejercicio intenso disminuyendo el&#13;
porcentaje de anomalías de los espermatozoides. El objetivo de este estudio es repetir el&#13;
mismo diseño ampliando el número de antioxidantes a tres (N-Acetilcistína, transresveratrol&#13;
y ubiquinol).&#13;
Setenta y cinco ratones son agrupados de forma aleatoria en 5 grupos de 15:&#13;
grupo reposo (REP), control de natación (C-NAT), natación + N-Acetilcisteína (NAC),&#13;
natación + trans-resveratrol (RESV), y natación + ubiquinol (UBIQ). Los animales de&#13;
los grupos C-NAT, NAC, RESV y UBIQ son sometidos a un ejercicio intenso de 3&#13;
minutos de natación forzada en piscina con temperatura controlada (33-35ºC) durante&#13;
50 días seguidos. Los antioxidantes se administran diariamente en una torta de 1 gramo&#13;
mezclados con pienso.&#13;
La valoración morfológica de los espermatozoides se realizó una vez&#13;
sacrificados los animales, a partir de una extensión del contenido espermático teñido&#13;
con eosina- nigrosina, obtenido de la cola del epidídimo.&#13;
Se observaron que existen diferencias significativas (p&lt; 0,05) entre el grupo&#13;
REP y C-NAT, lo que significa que el ejercicio de natación forzada utilizado induce el&#13;
daño espermático. Comparando el porcentaje de espermatozoides normales y el&#13;
tratamiento recibido, todos los grupos de tratamiento presentaron diferencias altamente&#13;
significativas (p&lt;0,01) con el grupo C-NAT, lo que significa que la administración de&#13;
los tres antioxidantes es eficaz en la disminución de las anomalías espermáticas&#13;
inducidas por el ejercicio intenso, destacando entre ellos el ubiquinol, que llega a&#13;
superar el porcentaje de espermatozoides normales del grupo REP (p&lt;0,05). Cuando las...</dim:field>
<dim:field element="description" qualifier="abstract" language="es_ES" mdschema="dc">Continuous exercise has been shown to induce damage altering sperm quality,&#13;
and more precisely sperm morphology. This seems to be related to the high production&#13;
of free radicals as a result of exercise. In previous experiences, we tested the&#13;
administration of N-acetylcysteine and trans-resveratrol as a dietary supplement in an&#13;
experimental model of forced swimming in CD-1 mice; the results indicated that these&#13;
antioxidants reduce the damage caused by intense/ continuous exercise decreasing&#13;
percentage of abnormal sperm. The objective of this study was to compare the&#13;
protective effect of three different antioxidants (N-acetylcystine, trans-resveratrol and&#13;
ubiquinol).&#13;
Seventy-five mice were randomly allocated into 5 groups of 15: rest group&#13;
(REP), swimming (C-NAT), swimming + trans-resveratrol (RESV), swimming + Nacetylcysteine&#13;
(NAC) and swimming + ubiquinol (UBIQ). The animals in the C-NAT,&#13;
NAC, RESV and UBIQ groups were subjected to 3 minutes of forced swimming&#13;
exercise in a pool with controlled temperature (33-35°C) for 50 consecutive days.&#13;
Antioxidants were administered daily in a 1-gram cake mixed with feed.&#13;
After death of the animals by cervical dislocation sperm morphology assessment&#13;
was performed from an extension of epididymary (tail) sperm content stained with&#13;
eosin-nigrosin.&#13;
Significant differences were found (p &lt;0.05) between the C-NAT and REP&#13;
group, which means that forced swimming exercise induces sperm damage. When&#13;
comparing the percentage of normal sperm, all antioxidant supplementd groups showed&#13;
significantly higher numbers (p &lt;0.01) with regards to C-NAT group. This means that&#13;
the administration of all three antioxidants is effective in reducing sperm abnormalities&#13;
induced by continuous exercise; among them, ubiquinol, showed higher percentage of&#13;
normal sperm in comparison to REP group (p &lt;0.05). When anomalies were categorized&#13;
into major (abnormalities of head and midpiece) and minor (tail abnormalities)...</dim:field>
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<dim:field element="publisher" language="es_ES" mdschema="dc">Universidad de Córdoba</dim:field>
<dim:field element="rights" language="es_ES" mdschema="dc">https://creativecommons.org/licenses/by-nc-nd/4.0/</dim:field>
<dim:field element="subject" language="es_ES" mdschema="dc">Esperma</dim:field>
<dim:field element="subject" language="es_ES" mdschema="dc">Morfología</dim:field>
<dim:field element="subject" language="es_ES" mdschema="dc">Ejercicio</dim:field>
<dim:field element="subject" language="es_ES" mdschema="dc">Estrés oxidativo</dim:field>
<dim:field element="subject" language="es_ES" mdschema="dc">Antioxidantes</dim:field>
<dim:field element="title" language="es_ES" mdschema="dc">Efecto de la N-Acetilcisteína, Transreveratrol y Ubiquinol en la morfología espermaica en ratones CD-1 sometidos a intenso de natación forzada</dim:field>
<dim:field element="type" language="es_ES" mdschema="dc">info:eu-repo/semantics/masterThesis</dim:field>
<dim:field element="rights" qualifier="accessRights" language="es_ES" mdschema="dc">info:eu-repo/semantics/openAccess</dim:field>
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