{"id":58584,"date":"2025-04-16T15:33:30","date_gmt":"2025-04-16T18:33:30","guid":{"rendered":"https:\/\/jornalfatosenoticias.com.br\/?p=58584"},"modified":"2025-04-16T15:33:31","modified_gmt":"2025-04-16T18:33:31","slug":"descoberta-abre-caminho-para-contraceptivo-nao-hormonal","status":"publish","type":"post","link":"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/","title":{"rendered":"Descoberta abre caminho para contraceptivo n\u00e3o hormonal"},"content":{"rendered":"\n<p><em><span class=\"has-inline-color has-black-color\">Pesquisadores desenvolveram um anticorpo que impede a fertiliza\u00e7\u00e3o, avan\u00e7ando na cria\u00e7\u00e3o de contraceptivos n\u00e3o hormonais<\/span><\/em><\/p>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">Por <strong><a href=\"https:\/\/olhardigital.com.br\/author\/ana-figueiredo\/\">Ana Luiza Figueiredo<\/a><\/strong><\/span><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/mizu.com.br\/\"><img loading=\"lazy\" decoding=\"async\" width=\"729\" height=\"90\" src=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/Logo_Mizu.png\" alt=\"\" class=\"wp-image-1441\" srcset=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/Logo_Mizu.png 729w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/Logo_Mizu-300x37.png 300w\" sizes=\"auto, (max-width: 729px) 100vw, 729px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>Pesquisadores do Instituto Karolinska, na Su\u00e9cia, deram um passo importante rumo \u00e0 cria\u00e7\u00e3o de um <strong><a href=\"https:\/\/olhardigital.com.br\/tag\/metodos-contraceptivos\/\" target=\"_blank\" rel=\"noreferrer noopener\">contraceptivo<\/a>\u00a0n\u00e3o hormonal<\/strong>, ao identificarem uma forma de impedir a\u00a0<a href=\"https:\/\/olhardigital.com.br\/tag\/fertilizacao\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>fertiliza\u00e7\u00e3o<\/strong><\/a>\u00a0agindo diretamente na superf\u00edcie do \u00f3vulo. O estudo, publicado na revista\u00a0<em>Proceedings of the National Academy of Sciences<\/em>, descreve como um fragmento de anticorpo modificado consegue\u00a0<strong>bloquear a fecunda\u00e7\u00e3o<\/strong> ao atingir uma prote\u00edna espec\u00edfica no \u00f3vulo.<br>A <strong><a href=\"https:\/\/nyheter.ki.se\/nytt-steg-taget-mot-en-icke-hormonell-preventivmetod\" target=\"_blank\" rel=\"noreferrer noopener\">descoberta<\/a><\/strong> representa uma nova abordagem na \u00e1rea de contracep\u00e7\u00e3o, ao propor uma alternativa aos m\u00e9todos hormonais, que muitas vezes est\u00e3o associados a efeitos colaterais como altera\u00e7\u00f5es de humor, dores de cabe\u00e7a e risco aumentado de trombose. A estrat\u00e9gia apresentada no estudo contorna esses riscos ao atuar de forma localizada e sem afetar o equil\u00edbrio hormonal do corpo.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.cesconetto.com.br\/\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"250\" src=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2022\/02\/Banner-2.png\" alt=\"\" class=\"wp-image-27877\"\/><\/a><\/figure><\/div>\n\n\n\n<p>A equipe usou cristalografia de <strong><a href=\"https:\/\/olhardigital.com.br\/tag\/raio-x\/\" target=\"_blank\" rel=\"noreferrer noopener\">raios-X<\/a><\/strong> para mapear em detalhes a intera\u00e7\u00e3o entre a prote\u00edna ZP2 e o anticorpo IE-3, j\u00e1 conhecido por inibir a fertiliza\u00e7\u00e3o em camundongos. A vers\u00e3o modificada \u2014 um fragmento chamado scFV \u2014 manteve a mesma efic\u00e1cia, bloqueando a fecunda\u00e7\u00e3o em 100% dos testes in vitro com \u00f3vulos de camundongos.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/hotelmarquetti.com.br\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/LOGO-MQ-1024x680.jpg\" alt=\"\" class=\"wp-image-58299\" width=\"342\" height=\"227\" srcset=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/LOGO-MQ-1024x680.jpg 1024w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/LOGO-MQ-300x199.jpg 300w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/LOGO-MQ-768x510.jpg 768w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/LOGO-MQ-1536x1020.jpg 1536w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2020\/02\/LOGO-MQ-2048x1360.jpg 2048w\" sizes=\"auto, (max-width: 342px) 100vw, 342px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>Por n\u00e3o conter a regi\u00e3o Fc, que normalmente aciona respostas do sistema imunol\u00f3gico, o scFV reduz a chance de rea\u00e7\u00f5es adversas. <em><strong>\u201cApesar de seu tamanho reduzido, o fragmento permaneceu eficaz, diminuindo os potenciais efeitos colaterais\u201d, destacou Jovine.<\/strong><\/em><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/www.instagram.com\/esteiochurrascaria\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2022\/02\/LOGO-ESTEIO-1024x730.png\" alt=\"\" class=\"wp-image-27942\" width=\"360\" height=\"256\" srcset=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2022\/02\/LOGO-ESTEIO-1024x730.png 1024w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2022\/02\/LOGO-ESTEIO-300x214.png 300w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2022\/02\/LOGO-ESTEIO-768x548.png 768w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2022\/02\/LOGO-ESTEIO.png 1123w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>A etapa seguinte da pesquisa ser\u00e1 testar um anticorpo similar que atue sobre a vers\u00e3o humana da prote\u00edna ZP2. O objetivo \u00e9 verificar se o fragmento scFV tamb\u00e9m consegue bloquear a fertiliza\u00e7\u00e3o em testes de fertiliza\u00e7\u00e3o in vitro com \u00f3vulos humanos. Caso os resultados se confirmem, os pesquisadores avan\u00e7ar\u00e3o para testes de seguran\u00e7a, estabilidade e formas de administra\u00e7\u00e3o. Se bem-sucedido, o estudo poder\u00e1 abrir caminho para um m\u00e9todo contraceptivo revers\u00edvel e livre de <strong><strong><a href=\"https:\/\/olhardigital.com.br\/tag\/hormonios\/\" target=\"_blank\" rel=\"noreferrer noopener\">horm\u00f4nios<\/a><\/strong>,<\/strong> atendendo \u00e0 demanda por op\u00e7\u00f5es mais seguras e personalizadas de planejamento reprodutivo.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/www.instagram.com\/restaurantepegoretti\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/12\/pegoretti-logo-pdf-1024x389.jpg\" alt=\"\" class=\"wp-image-47536\" width=\"511\" height=\"194\" srcset=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/12\/pegoretti-logo-pdf-1024x389.jpg 1024w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/12\/pegoretti-logo-pdf-300x114.jpg 300w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/12\/pegoretti-logo-pdf-768x291.jpg 768w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/12\/pegoretti-logo-pdf.jpg 1120w\" sizes=\"auto, (max-width: 511px) 100vw, 511px\" \/><\/a><\/figure><\/div>\n\n\n\n<p><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Alvo \u00e9 prote\u00edna essencial para liga\u00e7\u00e3o do espermatozoide<br><\/span><\/strong>\u2705 O foco da pesquisa \u00e9 a prote\u00edna ZP2, presente na camada externa do \u00f3vulo e fundamental tanto para a liga\u00e7\u00e3o com o espermatozoide quanto para impedir a entrada de m\u00faltiplos <strong><a href=\"https:\/\/olhardigital.com.br\/tag\/espermatozoide\/\" target=\"_blank\" rel=\"noreferrer noopener\">espermatozoides<\/a>.<\/strong><br>\u2705 O professor Luca Jovine, do Departamento de Medicina de Huddinge, explicou que o fragmento de anticorpo utilizado consegue bloquear essa intera\u00e7\u00e3o com alta efici\u00eancia.<br>\u2705<em> \u201cNosso estudo mostra como um pequeno fragmento de anticorpo pode bloquear a fertiliza\u00e7\u00e3o ao atingir a ZP2, uma prote\u00edna-chave na superf\u00edcie do \u00f3vulo\u201d, afirma Jovine<\/em>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/www.ithbrasil.com.br\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/08\/ITH.jpeg\" alt=\"\" class=\"wp-image-44638\" width=\"293\" height=\"238\" srcset=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/08\/ITH.jpeg 800w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/08\/ITH-300x244.jpeg 300w, https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2023\/08\/ITH-768x624.jpeg 768w\" sizes=\"auto, (max-width: 293px) 100vw, 293px\" \/><\/a><\/figure><\/div>\n\n\n\n<p><strong>Fonte: <a href=\"https:\/\/olhardigital.com.br\/2025\/04\/14\/medicina-e-saude\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/\">Olhar Digital<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pesquisadores desenvolveram um anticorpo que impede a fertiliza\u00e7\u00e3o, avan\u00e7ando na cria\u00e7\u00e3o de contraceptivos n\u00e3o hormonais Por Ana Luiza Figueiredo Pesquisadores do Instituto Karolinska, na Su\u00e9cia, deram um passo importante rumo \u00e0 cria\u00e7\u00e3o de um contraceptivo\u00a0n\u00e3o hormonal, ao identificarem uma forma de impedir a\u00a0fertiliza\u00e7\u00e3o\u00a0agindo diretamente na superf\u00edcie do \u00f3vulo. O estudo, publicado na revista\u00a0Proceedings of the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":58585,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[16269,4121,4600,14233,13667],"class_list":["post-58584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saude","tag-anticoncepcional","tag-espermatozoides","tag-fertilizacao","tag-metodos-contraceptivos","tag-ovulo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Descoberta abre caminho para contraceptivo n\u00e3o hormonal - Jornal Fatos e Not\u00edcias<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Descoberta abre caminho para contraceptivo n\u00e3o hormonal - Jornal Fatos e Not\u00edcias\" \/>\n<meta property=\"og:description\" content=\"Pesquisadores desenvolveram um anticorpo que impede a fertiliza\u00e7\u00e3o, avan\u00e7ando na cria\u00e7\u00e3o de contraceptivos n\u00e3o hormonais Por Ana Luiza Figueiredo Pesquisadores do Instituto Karolinska, na Su\u00e9cia, deram um passo importante rumo \u00e0 cria\u00e7\u00e3o de um contraceptivo\u00a0n\u00e3o hormonal, ao identificarem uma forma de impedir a\u00a0fertiliza\u00e7\u00e3o\u00a0agindo diretamente na superf\u00edcie do \u00f3vulo. O estudo, publicado na revista\u00a0Proceedings of the [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/\" \/>\n<meta property=\"og:site_name\" content=\"Jornal Fatos e Not\u00edcias\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-16T18:33:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-16T18:33:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2025\/04\/contraceptivo-nao-hormonal_freepik.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"713\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Luzimara Fernandes\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Luzimara Fernandes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/\"},\"author\":{\"name\":\"Luzimara Fernandes\",\"@id\":\"https:\/\/jornalfatosenoticias.com.br\/#\/schema\/person\/d63837fa13ac8666eb9e74e0985d6f81\"},\"headline\":\"Descoberta abre caminho para contraceptivo n\u00e3o hormonal\",\"datePublished\":\"2025-04-16T18:33:30+00:00\",\"dateModified\":\"2025-04-16T18:33:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/\"},\"wordCount\":459,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/jornalfatosenoticias.com.br\/#organization\"},\"image\":{\"@id\":\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/jornalfatosenoticias.com.br\/wp-content\/uploads\/2025\/04\/contraceptivo-nao-hormonal_freepik.jpg\",\"keywords\":[\"anticoncepcional\",\"espermatozoides\",\"fertiliza\u00e7\u00e3o\",\"m\u00e9todos contraceptivos\",\"\u00f3vulo\"],\"articleSection\":[\"Sa\u00fade\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/\",\"url\":\"https:\/\/jornalfatosenoticias.com.br\/index.php\/2025\/04\/16\/descoberta-abre-caminho-para-contraceptivo-nao-hormonal\/\",\"name\":\"Descoberta abre caminho para contraceptivo n\u00e3o hormonal - 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