{"id":81963,"date":"2018-03-10T00:05:55","date_gmt":"2018-03-10T00:05:55","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-lipoperoxidacion-en-pacientes-pediatricos-afectos-de-fibrosis-qua%c2%adstica-cardiopata%c2%adas-y-prematuros\/"},"modified":"2018-03-10T00:05:55","modified_gmt":"2018-03-10T00:05:55","slug":"estudio-de-lipoperoxidacion-en-pacientes-pediatricos-afectos-de-fibrosis-qua%c2%adstica-cardiopata%c2%adas-y-prematuros","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/estudio-de-lipoperoxidacion-en-pacientes-pediatricos-afectos-de-fibrosis-qua%c2%adstica-cardiopata%c2%adas-y-prematuros\/","title":{"rendered":"Estudio de lipoperoxidaci\u00f3n en pacientes pedi\u00e1tricos afectos de fibrosis qu\u00edstica, cardiopat\u00edas y prematuros."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Concepci\u00f3n Go\u00f1i Orayen <\/strong><\/h2>\n<p>El efecto lesivo del o2 sobre los organismos aerobios se puede producir por su capacidad de formar radicales libres (rl), que son mol\u00e9culas o \u00e1tomos muy reactivos. La formaci\u00f3n de cierta tasa de radicales libres en las c\u00e9lulas es un proceso normal, que habitualmente no provoca da\u00f1o, ya que existen mecanismos antioxidantes. Cuando la capacidad de los mecanismos antioxidantes es superada por la agresi\u00f3n oxidativa se produce el estr\u00e9s oxidativo se produce el estr\u00e9s oxidativo. Los ni\u00f1os con fibrosis qu\u00edstica (fq) por su patolog\u00eda de base pueden tener un desequiblibrio oxidante-antioxidante, as\u00ed como los reci\u00e9n nacidos prematuros (rn) y los ni\u00f1os con cardiopat\u00edas cong\u00e9nitas sometidos a nutrici\u00f3n parenteral (ntp) en el postoperatorio.  material y metodo  se determin\u00f3 un grupo control (i) de 132 ni\u00f1os (95v, 41m) de 6-5 a\u00f1os. un grupo (ii) de ni\u00f1os diagnosticados de fq: 86 ni\u00f1os (50v,36m) de 10-6 a\u00f1os. Un grupo (iii) de ni\u00f1os concaridopat\u00edas cong\u00e9nitas y sometidos a npt en el postoperatorio, 12 ni\u00f1os (6v, 6m) de 2,5-3 a\u00f1os; y un grupo (iv) de rn subdividido en 41 rn a t\u00e9rmino (21v,20m), eg 38-1s, p2897-554g; 31 prematuros sanos (13v,18m) con eg=33-2s y p=1866-400g y 18rn prematuros con emh (12v,6m), eg 32-2,5s, p 1813-577g. En todos los pacientes se determinaron marcadores de lipoperoxidaci\u00f3n (malonildialdeh\u00eddo (mda) y el % de mda producido por los hemat\u00edes) y de defensas antioxidantes (vitaminas e y a la capacidad antioxidante del plasma). En el grupo ii se estudi\u00f3 adem\u00e1s la prealb\u00famina, el selenio, cinc y cobre, el glutati\u00f3n y la actividad de la glutati\u00f3n peroxidasa en hemat\u00edes. En la npt se estudi\u00f3 el mda, la vitamina e y capacidad antioxidante del inralipid. En los rn se estudi\u00f3 el mda, los lipoper\u00f3xidos, la oxidacibilidad plasm\u00e1tica y la vitamina e, capacidad antioxidante del plasma, grupos sulfidrilo, selenio y cobre.  resultados y conclusiones  1- existe un desequilibrio del estado oxidante-an<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de lipoperoxidaci\u00f3n en pacientes pedi\u00e1tricos afectos de fibrosis qu\u00edstica, cardiopat\u00edas y prematuros.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de lipoperoxidaci\u00f3n en pacientes pedi\u00e1tricos afectos de fibrosis qu\u00edstica, cardiopat\u00edas y prematuros. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Concepci\u00f3n Go\u00f1i Orayen <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/12\/1999<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Angel Ballabriga Aguado<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: alfredo Gallant catal\u00e1 <\/li>\n<li>Rafael Jimenez gonzalez (vocal)<\/li>\n<li>Manuel Cruz hern\u00e1ndez (vocal)<\/li>\n<li>carolina Gutierrez junquera (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Concepci\u00f3n Go\u00f1i Orayen El efecto lesivo del o2 sobre los organismos aerobios se puede producir por su 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