{"id":37007,"date":"2020-02-08T05:30:51","date_gmt":"2020-02-08T04:30:51","guid":{"rendered":"https:\/\/naturopatiadigital.eu\/?p=37007"},"modified":"2020-02-08T05:30:51","modified_gmt":"2020-02-08T04:30:51","slug":"area-de-conocimiento-naturopatia-experimental-sustancias-bioactivas-efectos-de-las-catequinas-del-te-sobre-la-actividad-estrogenica-regulada-por-ere","status":"publish","type":"post","link":"https:\/\/rina.naturopatiadigital.eu\/?p=37007","title":{"rendered":"\u00c1rea de conocimiento: Naturopat\u00eda Experimental: Sustancias Bioactivas: \u00abEfectos de las catequinas del t\u00e9 sobre la actividad estrog\u00e9nica regulada por ERE\u00bb"},"content":{"rendered":"<p><a href=\"https:\/\/1.bp.blogspot.com\/-7nEm7PDFQoM\/Xj_Z5687NOI\/AAAAAAAAajA\/PcXOpZlVjeki3aXI4HAlWQN1kmE1vc1wwCLcBGAsYHQ\/s1600\/Journal_agricultural%2Band%2Bfood%2Bchemistry.jpg\"><img decoding=\"async\" class=\"alignleft\" src=\"https:\/\/1.bp.blogspot.com\/-7nEm7PDFQoM\/Xj_Z5687NOI\/AAAAAAAAajA\/PcXOpZlVjeki3aXI4HAlWQN1kmE1vc1wwCLcBGAsYHQ\/s1600\/Journal_agricultural%2Band%2Bfood%2Bchemistry.jpg\" border=\"0\" data-original-width=\"195\" data-original-height=\"259\" \/><\/a>Kuruto-Niwa, R., Inoue, S., Ogawa, S., Muramatsu, M., &amp; Nozawa, R. (2000).\u00a0<a href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/jf0008487\">Effects of tea catechins on the ERE-regulated estrogenic activity<\/a>.\u00a0<i>Journal of agricultural and food chemistry<\/i>, 48(12), 6355-6361.<\/p>\n<p>Las catequinas del t\u00e9 ejercen muchos efectos biol\u00f3gicos, incluidas las actividades anticancer\u00edgenas y anticancer\u00edgenas. Adem\u00e1s, se informa que algunos flavonoides vegetales exhiben actividad estrog\u00e9nica.\u00a0<\/p>\n<p>En este estudio, investigamos las actividades estrog\u00e9nicas o antiestrog\u00e9nicas de las catequinas en las c\u00e9lulas HeLa transfectadas transitoriamente con un indicador de luciferasa regulado por el elemento de respuesta al estr\u00f3geno (ERE) y un vector de expresi\u00f3n del receptor de estr\u00f3geno (ER) \u03b1 o ER\u03b2.\u00a0<\/p>\n<p>Las catequinas por s\u00ed solas no indujeron actividad luciferasa (luc) en ninguna de las salas de emergencias. La adici\u00f3n de 17\u03b2-estradiol (E 2 ) m\u00e1s galato de epicatequina (ECG) o galato de epigalocatequina (EGCG) a 5 \u00d7 10 &#8211; 6 M result\u00f3 en disminuciones significativas en la actividad luc mediada por ER\u03b1 en comparaci\u00f3n con la de E 2solo. Por el contrario, concentraciones m\u00e1s bajas aumentaron significativamente el E 2 actividad luc inducida. Se observaron efectos similares con tamoxifeno. Las actividades estrog\u00e9nicas mediadas por ER\u03b2 fueron estimuladas por las catequinas.\u00a0<\/p>\n<p>En conclusi\u00f3n, algunas catequinas, particularmente EGCG, fueron antiestrog\u00e9nicas para ER\u03b1 a dosis m\u00e1s altas y coestrog\u00e9nicas para ER\u03b1 a dosis m\u00e1s bajas y para ER\u03b2. Las dosis m\u00e1s bajas se encontraron en plasma humano despu\u00e9s de beber t\u00e9. Adem\u00e1s, algunas catequinas pueden ser disruptores antiendocrinos porque suprimen las actividades luc inducidas por bisfenol A.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kuruto-Niwa, R., Inoue, S., Ogawa, S., Muramatsu, M., &amp; Nozawa, R. (2000).\u00a0Effects of tea catechins on the ERE-regulated estrogenic activity.\u00a0Journal of agricultural and food chemistry, 48(12), 6355-6361. Las catequinas del t\u00e9 ejercen muchos efectos biol\u00f3gicos, incluidas las actividades anticancer\u00edgenas y anticancer\u00edgenas. Adem\u00e1s, se informa que algunos flavonoides vegetales exhiben actividad estrog\u00e9nica.\u00a0 En este estudio, investigamos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-37007","post","type-post","status-publish","format-standard","hentry","category-sustancias-bioactivas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00c1rea de conocimiento: Naturopat\u00eda Experimental: Sustancias Bioactivas: &quot;Efectos de las catequinas del t\u00e9 sobre la actividad estrog\u00e9nica regulada por ERE&quot; -<\/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:\/\/rina.naturopatiadigital.eu\/?p=37007\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c1rea de conocimiento: Naturopat\u00eda Experimental: Sustancias Bioactivas: &quot;Efectos de las catequinas del t\u00e9 sobre la actividad estrog\u00e9nica regulada por ERE&quot; -\" \/>\n<meta property=\"og:description\" content=\"Kuruto-Niwa, R., Inoue, S., Ogawa, S., Muramatsu, M., &amp; Nozawa, R. (2000).\u00a0Effects of tea catechins on the ERE-regulated estrogenic activity.\u00a0Journal of agricultural and food chemistry, 48(12), 6355-6361. Las catequinas del t\u00e9 ejercen muchos efectos biol\u00f3gicos, incluidas las actividades anticancer\u00edgenas y anticancer\u00edgenas. Adem\u00e1s, se informa que algunos flavonoides vegetales exhiben actividad estrog\u00e9nica.\u00a0 En este estudio, investigamos [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rina.naturopatiadigital.eu\/?p=37007\" \/>\n<meta property=\"article:published_time\" content=\"2020-02-08T04:30:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/1.bp.blogspot.com\/-7nEm7PDFQoM\/Xj_Z5687NOI\/AAAAAAAAajA\/PcXOpZlVjeki3aXI4HAlWQN1kmE1vc1wwCLcBGAsYHQ\/s1600\/Journal_agricultural%2Band%2Bfood%2Bchemistry.jpg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" 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