{"id":30274,"date":"2018-03-09T09:23:49","date_gmt":"2018-03-09T09:23:49","guid":{"rendered":""},"modified":"2018-03-09T09:23:49","modified_gmt":"2018-03-09T09:23:49","slug":"desarrollo-puberal-humano-interrelacion-entre-parametros-somatometricos-secrecion-pineal-de-melatonina-y-concentracion-serica-de-leptina-y-dehidroepiandrosterona-sulfato-en-distintos-estadios-pubera","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/desarrollo-puberal-humano-interrelacion-entre-parametros-somatometricos-secrecion-pineal-de-melatonina-y-concentracion-serica-de-leptina-y-dehidroepiandrosterona-sulfato-en-distintos-estadios-pubera\/","title":{"rendered":"Desarrollo puberal humano: interrelaci\u00f3n entre par\u00e1metros somatom\u00e9tricos, secreci\u00f3n pineal de melatonina y concentraci\u00f3n s\u00e9rica de leptina y dehidroepiandrosterona sulfato en distintos estadios puberales."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Esther Fern\u00e1ndez Tardaguila <\/strong><\/h2>\n<p>Justificaci\u00f3n  falta de conocimientos de los factores que reactivan el generador de pulsos de gnrh y, por tanto, desencadenan la pubertad.  numerosos estudios relacionan pubertad-leptina y pubertad-melatonina pero hasta ahora no se ha relacionado leptina, melatonina, par\u00e1metros somatom\u00e9tricos y desarrollo puberal en un mismo estudio.  objetivo general  conocer el pepel que juegan en el inicio y desarrollo puberal los factores somatom\u00e9tricos (peso, talla y masa grasa corporal) y hormonales (leptina y melatonina) y las relaciones entre ellos.  material y m\u00e9todo  es un estudio observacional, prospectivo, con peque\u00f1as muestras. Se obtuvo un total de 80 casos, valorados en dos ocasiones, con 1-1.5 a\u00f1os de diferencia, en distinto estadio puberal. Se les realiz\u00f3 hemograma, bioqu\u00edmica sangu\u00ednea y hormonal (fsh, lh, estradiol, testosterona, tsh, dheas, melatonina, leptina) y se midieron par\u00e1metros somatom\u00e9tricos (peso, talla, pliegues cut\u00e1neos, per\u00edmetro braquial) y tensi\u00f3n arterial. Las variables se analizaron mediante estad\u00edstica descriptiva, test de friedman, test de wilcoxon, estudio de correlaci\u00f3n (coeficiente de pearson) y regresi\u00f3n lineal simple, an\u00e1lisis general lineal multivariante y regresi\u00f3n lineal m\u00faltiple.  resultados y conclusiones  la concentraci\u00f3n s\u00e9rica de melatonina cae en ambos sexos conforme se inicia el desarrollo puberal aunque s\u00f3lo alcanza signficaci\u00f3n estad\u00edstica en el grupo de mujeres con pubertad ya iniciada. La concentraci\u00f3n s\u00e9rica de melatonina tiende a ser mayor en mujeres.  el descenso de la melatonina no se correlaciona con un aumento del peso corporal ni con el grado de avance del desarrollo puberal. Nuestros resultados no avalan una participaci\u00f3n significativa de la melatonina en la llamada \u00abteor\u00eda de la diluci\u00f3n\u00bb.  la concentraci\u00f3n s\u00e9rica de leptina aumenta en ambos sexos conforme progresa la pubertad y es un 40% mayor en mujeres, con diferencias que se acrecienta con<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Desarrollo puberal humano: interrelaci\u00f3n entre par\u00e1metros somatom\u00e9tricos, secreci\u00f3n pineal de melatonina y concentraci\u00f3n s\u00e9rica de leptina y dehidroepiandrosterona sulfato en distintos estadios puberales.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Desarrollo puberal humano: interrelaci\u00f3n entre par\u00e1metros somatom\u00e9tricos, secreci\u00f3n pineal de melatonina y concentraci\u00f3n s\u00e9rica de leptina y dehidroepiandrosterona sulfato en distintos estadios puberales. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Esther Fern\u00e1ndez Tardaguila <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 24\/05\/2004<\/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>Antonio Mu\u00f1oz Hoyos<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: gabriel Galdo m\u00fa\u00f1oz <\/li>\n<li>Antonio Bonillo perales (vocal)<\/li>\n<li>vicente Crespo ferrer (vocal)<\/li>\n<li> Mart\u00ednez ca\u00f1abate burgos Ana (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Esther Fern\u00e1ndez Tardaguila Justificaci\u00f3n falta de conocimientos de los factores que reactivan el generador de pulsos de 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