{"id":166654,"date":"2025-07-25T11:02:50","date_gmt":"2025-07-25T11:02:50","guid":{"rendered":"https:\/\/raed.academy\/?p=166654"},"modified":"2025-07-25T11:31:14","modified_gmt":"2025-07-25T11:31:14","slug":"la-lluita-de-la-ciencia-contra-la-infertilitat","status":"publish","type":"post","link":"https:\/\/raed.academy\/ca\/la-lluita-de-la-ciencia-contra-la-infertilitat\/","title":{"rendered":"La lluita de la ci\u00e8ncia contra la infertilitat"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; admin_label=&#8221;Secci\u00f3n&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_fullwidth_image src=&#8221;https:\/\/raed.academy\/wp-content\/uploads\/2025\/06\/shutt-fecundacion-fertilidad-ovulo-y-espermatozoides-2.91.webp&#8221; title_text=&#8221;shutt-fecundacion-fertilidad-ovulo-y-espermatozoides-2.91&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_fullwidth_image][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; max_width=&#8221;1400px&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; use_custom_gutter=&#8221;on&#8221; gutter_width=&#8221;1&#8243; sticky_enabled=&#8221;0&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><a href=\"https:\/\/raed.academy\/ca\/academics\/dr-marc-yeste-oliveras\/\" target=\"_blank\" rel=\"noopener\"><em><strong>Marc Yeste<\/strong><\/em><\/a>, doctor en Biologia Cel\u00b7lular, va ingressar com a acad\u00e8mic numerari de la <strong>Reial Acad\u00e8mia Europea de Doctors<\/strong> (RAED) durant una solemne cerim\u00f2nia que es va celebrar el passat 22 de juliol a la Sala d&#8217;Actes de <strong>Foment del Treball<\/strong>, seu acad\u00e8mica. El recipiendari va llegir el discurs d&#8217;ingr\u00e9s <a href=\"https:\/\/raed.academy\/wp-content\/uploads\/2025\/07\/Influencia-de-la-edad-materna-en-la-competencia-funcional-del-oocito-Marc-Yeste-Oliveras.pdf\" target=\"_blank\" rel=\"noopener\"><strong>&#8220;Influ\u00e8ncia de l&#8217;edat materna en la compet\u00e8ncia funcional de l&#8217;o\u00f2cit&#8221;<\/strong><\/a>. Li va respondre en nom de la Reial Corporaci\u00f3 l&#8217;acad\u00e8mica numer\u00e0ria i vicepresidenta de la <strong>Junta de Govern <a href=\"https:\/\/raed.academy\/ca\/academics\/dra-maria-dels-angels-calvo-torras\/\" target=\"_blank\" rel=\"noopener\"><em>Maria \u00c0ngels Calvo<\/em><\/a><\/strong>. La sessi\u00f3 va poder seguir-se per streaming a trav\u00e9s del canal de <strong>YouTube<\/strong> de la RAED, on pot visualitzar-se. Yeste ja era acad\u00e8mic corresponent de la RAED, on va ingressar el 2023 amb el discurs<a href=\"https:\/\/raed.academy\/wp-content\/uploads\/2024\/01\/La-ciencia-de-la-espermatologia-libro-ingreso-Marc-Yeste-Oliveras-compr.pdf\" target=\"_blank\" rel=\"noopener\"><strong> &#8220;La ci\u00e8ncia de l&#8217;espermatolog\u00eda: de l&#8217;origen de la disciplina al paradigma actual&#8221;<\/strong><\/a>.<\/p>\n<div id=\"attachment_166567\" style=\"width: 240px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-166567\" class=\"wp-image-166567 size-full\" src=\"https:\/\/raed.academy\/wp-content\/uploads\/2025\/07\/Marc-Yeste-Oliveras-22julio2025-230x317-1.jpg\" alt=\"Dr. Marc Yeste Oliveras\" width=\"230\" height=\"317\" \/><p id=\"caption-attachment-166567\" class=\"wp-caption-text\">Dr. Marc Yeste<\/p><\/div>\n<p>L&#8217;expert va reprendre en bona part aquell primer estudi, basat en el g\u00e0meta mascul\u00ed, per centrar el seu discurs com a membre numerari en el g\u00e0meta femen\u00ed, l&#8217;o\u00f2cit, abordant un dels problemes que es donen actualment en les societats occidentals davant el retard voluntari de la maternitat: la infertilitat. &#8220;Durant les \u00faltimes d\u00e8cades, el nombre de dones que decideix posposar el moment de tenir fills no ha deixat sin\u00f3 d&#8217;incrementar substancialment, especialment als pa\u00efsos occidentals. Els motius que expliquen aquesta decisi\u00f3 s\u00f3n m\u00faltiples i inclouen, entre d&#8217;altres, la carrera professional, l&#8217;estabilitat laboral, la situaci\u00f3 socioecon\u00f2mica, factors emocionals, i la possibilitat de tenir una parella estable. Desafortunadament, l&#8217;augment de l&#8217;edat materna tamb\u00e9 augmenta la infertilitat, ja que la probabilitat que una dona concebi de forma natural despr\u00e9s d&#8217;un any de relacions sexuals sense protecci\u00f3 disminueix significativament a partir dels 35 anys. Aix\u00f2 es deu als processos d&#8217;envelliment que tenen lloc a l&#8217;ovari, que s\u00f3n \u00fanics i complexos i impliquen una reducci\u00f3 tant de la quantitat com de la qualitat dels o\u00f2cits&#8221;, va introduir l&#8217;acad\u00e8mic la mat\u00e8ria del seu estudi.<\/p>\n<p>Yeste va assenyalar que la disminuci\u00f3 en la quantitat d&#8217;o\u00f2cits es deu que la reserva d&#8217;aquests s&#8217;estableix durant el desenvolupament fetal, de manera que les dones tenen una quantitat fixa de fol\u00b7licles que va disminuint amb l&#8217;edat. D&#8217;altra banda, la reducci\u00f3 de la qualitat s&#8217;explica, entre altres raons, per l&#8217;augment dels danys a l&#8217;ADN i del percentatge dels o\u00f2cits aneuploides, la disfunci\u00f3 mitocondrial i l&#8217;estr\u00e8s oxidatiu, va explicar l&#8217;expert. &#8220;Els efectes primaris de l&#8217;envelliment oocitari condueixen a altres conseq\u00fc\u00e8ncies posteriors, com la degradaci\u00f3 de determinades prote\u00efnes, la inestabilitat del citoesquelet, canvis en la regulaci\u00f3 de les vies de senyalitzaci\u00f3 cel\u00b7lular i alteracions en la comunicaci\u00f3 del complex c\u00e8l\u00b7lules del c\u00famulus-o\u00f2cit (COC)&#8221;, va afirmar. Davant aquest escenari, Yeste va oferir les solucions cient\u00edfiques que obren una via a l&#8217;optimisme i permeten el desenvolupament d&#8217;estrat\u00e8gies per mitigar els efectes de l&#8217;envelliment oocitari, com ara la criopreservaci\u00f3 dels o\u00f2cits. Per aix\u00f2, va assenyalar, la recerca en aquest camp \u00e9s fonamental per a la salut reproductiva de la dona i constitueix un dels desafiaments m\u00e9s grans s l&#8217;\u00e0mbit de la fertilitat humana.<\/p>\n<p>&#8220;L&#8217;aparici\u00f3 de les t\u00e8cniques de reproducci\u00f3 assistida ha perm\u00e8s incrementar la fertilitat de les pacients amb una edat reproductiva avan\u00e7ada. Especialment importants s\u00f3n els aven\u00e7os en les t\u00e8cniques de diagn\u00f2stic gen\u00e8tic preimplantacional que permeten detectar aneuploid\u00edas a partir d&#8217;un blast\u00f2mer i seleccionar i transferir, despr\u00e9s, els embrions euploides. Malgrat aquests aven\u00e7os en les t\u00e8cniques de diagn\u00f2stic, el cert \u00e9s que no es disposa de cap tractament efectiu que elimini completament els efectes adversos de l&#8217;increment de l&#8217;edat materna als o\u00f2cits, doncs l&#8217;envelliment, tamb\u00e9 el de les c\u00e8l\u00b7lules germinals, no \u00e9s sin\u00f3 una caracter\u00edstica m\u00e9s del fenomen de la vida&#8221;, va concloure l&#8217;acad\u00e8mic.<\/p>\n<p>Yeste\u00a0\u00e9s director del\u00a0<strong>Centre\u00a0de\u00a0Biotecnologia\u00a0de la\u00a0Reproducci\u00f3\u00a0TechnoSperm<\/strong>, investigador de l&#8217;<strong>Institut Catal\u00e0 de Recerca i Estudis Avan\u00e7ats<\/strong> i professor de Biologia Cel\u00b7lular a les facultats de Medicina i Infermeria de la <strong>Universitat de Girona<\/strong>, on dirigeix el seu <strong>Institut de Tecnologia Agroaliment\u00e0ria<\/strong>. \u00c9s docent, aix\u00ed mateix, del <strong>M\u00e0ster en Embriologia Cl\u00ednica<\/strong> de la <strong>Universitat d&#8217;Oxford<\/strong>. Les seves recerques s&#8217;han centrat en la biologia de la reproducci\u00f3 de diferents esp\u00e8cies de mam\u00edfers. Ha publicat m\u00e9s de 260 articles i 20 cap\u00edtols de llibre sobre la mat\u00e8ria i ha participat en m\u00e9s d&#8217;un centenar de projectes d&#8217;investigaci\u00f3 i contractes amb empreses. Coordina el<strong> Grup Consolidat de Recerca en Biotecnologia de la Reproducci\u00f3<\/strong> de la <strong>Generalitat de Catalunya<\/strong>, que es desenvolupa de forma conjunta entre experts de la Universitat de Girona i la <strong>Universitat Aut\u00f2noma de Barcelona<\/strong>.<\/p>\n<h2><a href=\"https:\/\/raed.academy\/wp-content\/uploads\/2025\/07\/Influencia-de-la-edad-materna-en-la-competencia-funcional-del-oocito-Marc-Yeste-Oliveras.pdf\" target=\"_blank\" rel=\"noopener\">Discurs d&#8217;ingr\u00e9s: Influ\u00e8ncia de l&#8217;edat materna en la compet\u00e8ncia funcional de l&#8217;o\u00f2cit<\/a><\/h2>\n<p>[\/et_pb_text][et_pb_divider show_divider=&#8221;off&#8221; admin_label=&#8221;Separador&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; height=&#8221;50px&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][et_pb_gallery gallery_ids=&#8221;166524,166527,166530,166533,166536,166539,166542,166545,166548,166551,166554,166557&#8243; posts_number=&#8221;12&#8243; show_title_and_caption=&#8221;off&#8221; show_pagination=&#8221;off&#8221; module_class=&#8221;galeria-pad-1&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_gallery][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Marc Yeste aborda, durant el seu ingr\u00e9s com a Acad\u00e8mic Numerari de la RAED, un dels problemes que es donen actualment a les societats occidentals davant el retard voluntari de la maternitat: la infertilitat, en el seu discurs &#8220;Influencia de la edad materna en la competencia funcional del oocito&#8221;<\/p>\n","protected":false},"author":12,"featured_media":165275,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<p><a href=\"https:\/\/raed.academy\/ca\/academics\/dr-marc-yeste-oliveras\/\" target=\"_blank\" rel=\"noopener\"><em><strong>Marc Yeste<\/strong><\/em><\/a>, doctor en Biologia Cel\u00b7lular, va ingressar com a acad\u00e8mic numerari de la <strong>Reial Acad\u00e8mia Europea de Doctors<\/strong> (RAED) durant una solemne cerim\u00f2nia que es va celebrar el passat 22 de juliol a la Sala d'Actes de <strong>Foment del Treball<\/strong>, seu acad\u00e8mica. El recipiendari va llegir el discurs d'ingr\u00e9s <strong>\"Influ\u00e8ncia de l'edat materna en la compet\u00e8ncia funcional de l'o\u00f2cit\"<\/strong>. Li va respondre en nom de la Reial Corporaci\u00f3 l'acad\u00e8mica numer\u00e0ria i vicepresidenta de la <strong>Junta de Govern <a href=\"https:\/\/raed.academy\/ca\/academics\/dra-maria-dels-angels-calvo-torras\/\" target=\"_blank\" rel=\"noopener\"><em>Maria \u00c0ngels Calvo<\/em><\/a><\/strong>. La sessi\u00f3 va poder seguir-se per streaming a trav\u00e9s del canal de <strong>YouTube<\/strong> de la RAED, on pot visualitzar-se. Yeste ja era acad\u00e8mic corresponent de la RAED, on va ingressar el 2023 amb el discurs<strong> \"La ci\u00e8ncia de l'espermatolog\u00eda: de l'origen de la disciplina al paradigma actual\"<\/strong>.<\/p><p>L'expert va reprendre en bona part aquell primer estudi, basat en el g\u00e0meta mascul\u00ed, per centrar el seu discurs com a membre numerari en el g\u00e0meta femen\u00ed, l'o\u00f2cit, abordant un dels problemes que es donen actualment en les societats occidentals davant el retard voluntari de la maternitat: la infertilitat. \"Durant les \u00faltimes d\u00e8cades, el nombre de dones que decideix posposar el moment de tenir fills no ha deixat sin\u00f3 d'incrementar substancialment, especialment als pa\u00efsos occidentals. Els motius que expliquen aquesta decisi\u00f3 s\u00f3n m\u00faltiples i inclouen, entre d'altres, la carrera professional, l'estabilitat laboral, la situaci\u00f3 socioecon\u00f2mica, factors emocionals, i la possibilitat de tenir una parella estable. Desafortunadament, l'augment de l'edat materna tamb\u00e9 augmenta la infertilitat, ja que la probabilitat que una dona concebi de forma natural despr\u00e9s d'un any de relacions sexuals sense protecci\u00f3 disminueix significativament a partir dels 35 anys. Aix\u00f2 es deu als processos d'envelliment que tenen lloc a l'ovari, que s\u00f3n \u00fanics i complexos i impliquen una reducci\u00f3 tant de la quantitat com de la qualitat dels o\u00f2cits\", va introduir l'acad\u00e8mic la mat\u00e8ria del seu estudi.<\/p><p>Yeste va assenyalar que la disminuci\u00f3 en la quantitat d'o\u00f2cits es deu que la reserva d'aquests s'estableix durant el desenvolupament fetal, de manera que les dones tenen una quantitat fixa de fol\u00b7licles que va disminuint amb l'edat. D'altra banda, la reducci\u00f3 de la qualitat s'explica, entre altres raons, per l'augment dels danys a l'ADN i del percentatge dels o\u00f2cits aneuploides, la disfunci\u00f3 mitocondrial i l'estr\u00e8s oxidatiu, va explicar l'expert. \"Els efectes primaris de l'envelliment oocitari condueixen a altres conseq\u00fc\u00e8ncies posteriors, com la degradaci\u00f3 de determinades prote\u00efnes, la inestabilitat del citoesquelet, canvis en la regulaci\u00f3 de les vies de senyalitzaci\u00f3 cel\u00b7lular i alteracions en la comunicaci\u00f3 del complex c\u00e8l\u00b7lules del c\u00famulus-o\u00f2cit (COC)\", va afirmar. Davant aquest escenari, Yeste va oferir les solucions cient\u00edfiques que obren una via a l'optimisme i permeten el desenvolupament d'estrat\u00e8gies per mitigar els efectes de l'envelliment oocitari, com ara la criopreservaci\u00f3 dels o\u00f2cits. Per aix\u00f2, va assenyalar, la recerca en aquest camp \u00e9s fonamental per a la salut reproductiva de la dona i constitueix un dels desafiaments m\u00e9s grans s l'\u00e0mbit de la fertilitat humana.<\/p><p>\"L'aparici\u00f3 de les t\u00e8cniques de reproducci\u00f3 assistida ha perm\u00e8s incrementar la fertilitat de les pacients amb una edat reproductiva avan\u00e7ada. Especialment importants s\u00f3n els aven\u00e7os en les t\u00e8cniques de diagn\u00f2stic gen\u00e8tic preimplantacional que permeten detectar aneuploid\u00edas a partir d'un blast\u00f2mer i seleccionar i transferir, despr\u00e9s, els embrions euploides. Malgrat aquests aven\u00e7os en les t\u00e8cniques de diagn\u00f2stic, el cert \u00e9s que no es disposa de cap tractament efectiu que elimini completament els efectes adversos de l'increment de l'edat materna als o\u00f2cits, doncs l'envelliment, tamb\u00e9 el de les c\u00e8l\u00b7lules germinals, no \u00e9s sin\u00f3 una caracter\u00edstica m\u00e9s del fenomen de la vida\", va concloure l'acad\u00e8mic.<\/p><p>Yeste\u00a0\u00e9s director del\u00a0<strong>Centre\u00a0de\u00a0Biotecnologia\u00a0de la\u00a0Reproducci\u00f3\u00a0TechnoSperm<\/strong>, investigador de l'<strong>Institut Catal\u00e0 de Recerca i Estudis Avan\u00e7ats<\/strong> i professor de Biologia Cel\u00b7lular a les facultats de Medicina i Infermeria de la <strong>Universitat de Girona<\/strong>, on dirigeix el seu <strong>Institut de Tecnologia Agroaliment\u00e0ria<\/strong>. \u00c9s docent, aix\u00ed mateix, del <strong>M\u00e0ster en Embriologia Cl\u00ednica<\/strong> de la <strong>Universitat d'Oxford<\/strong>. Les seves recerques s'han centrat en la biologia de la reproducci\u00f3 de diferents esp\u00e8cies de mam\u00edfers. Ha publicat m\u00e9s de 260 articles i 20 cap\u00edtols de llibre sobre la mat\u00e8ria i ha participat en m\u00e9s d'un centenar de projectes d'investigaci\u00f3 i contractes amb empreses. Coordina el<strong> Grup Consolidat de Recerca en Biotecnologia de la Reproducci\u00f3<\/strong> de la <strong>Generalitat de Catalunya<\/strong>, que es desenvolupa de forma conjunta entre experts de la Universitat de Girona i la <strong>Universitat Aut\u00f2noma de Barcelona<\/strong>.<\/p><h2><a href=\"https:\/\/raed.academy\/wp-content\/uploads\/2025\/07\/Influencia-de-la-edad-materna-en-la-competencia-funcional-del-oocito-Marc-Yeste-Oliveras.pdf\" target=\"_blank\" rel=\"noopener\">Discurs d'ingr\u00e9s: Influ\u00e8ncia de l'edat materna en la compet\u00e8ncia funcional de l'o\u00f2cit<\/a><\/h2>","_et_gb_content_width":"","footnotes":""},"categories":[332,455,457],"tags":[],"class_list":["post-166654","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biologia-ca","category-ciencies-de-la-salut","category-sexologia-ca","et-has-post-format-content","et_post_format-et-post-format-standard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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