{"id":40040,"date":"2020-04-25T06:30:02","date_gmt":"2020-04-25T04:30:02","guid":{"rendered":"https:\/\/naturopatiadigital.eu\/?p=40040"},"modified":"2020-04-25T06:30:02","modified_gmt":"2020-04-25T04:30:02","slug":"40040","status":"publish","type":"post","link":"https:\/\/rina.naturopatiadigital.eu\/?p=40040","title":{"rendered":"\u00c1rea de conocimiento: Naturopat\u00eda Descriptiva: \u00abEl nervio vago en la respuesta termorreguladora a la inflamaci\u00f3n sist\u00e9mica\u00bb"},"content":{"rendered":"<p><a href=\"https:\/\/1.bp.blogspot.com\/-566Z7pPNItM\/XqRRshMlKpI\/AAAAAAAAcbg\/8ebomzCczFkNoAhV4tZ5GzvqBpEaUIZXACLcBGAsYHQ\/s1600\/American_Journal%2Bof%2BPhysiology-Regulatory%252C%2BIntegrative%2Band%2BComparative%2BPhysiology.jpg\"><img decoding=\"async\" class=\"alignleft\" src=\"https:\/\/1.bp.blogspot.com\/-566Z7pPNItM\/XqRRshMlKpI\/AAAAAAAAcbg\/8ebomzCczFkNoAhV4tZ5GzvqBpEaUIZXACLcBGAsYHQ\/s1600\/American_Journal%2Bof%2BPhysiology-Regulatory%252C%2BIntegrative%2Band%2BComparative%2BPhysiology.jpg\" border=\"0\" data-original-width=\"231\" data-original-height=\"300\" \/><\/a>Romanovsky, A. A., Simons, C. T., Szekely, M., &amp; Kulchitsky, V. A. (1997).\u00a0<a href=\"https:\/\/journals.physiology.org\/doi\/abs\/10.1152\/ajpregu.1997.273.1.r407?journalCode=ajpregu\">The vagus nerve in the thermoregulatory response to systemic inflammation<\/a>.\u00a0<i>American Journal of Physiology-Regulatory, Integrative and Comparative Physiology,<\/i>\u00a0273(1), R407-R413.<\/p>\n<p>Experimentalmente, la inflamaci\u00f3n sist\u00e9mica inducida por una inyecci\u00f3n intravenosa en bolo de lipopolisac\u00e1rido (LPS) puede ir acompa\u00f1ada de tres respuestas termorreguladoras diferentes: fiebre monof\u00e1sica (la respuesta t\u00edpica a dosis bajas de LPS), fiebre bif\u00e1sica (dosis medias) e hipotermia (dosis altas) .\u00a0<\/p>\n<p>En nuestro estudio reciente [Romanovsky, AA, VA Kulchitsky, CT Simons, N. Sugimoto y M. Sz\u00e9kely. A.m. J. Physiol. (Normativa Integral Comp. Physiol.). En prensa], la fiebre monof\u00e1sica no ocurri\u00f3 en ratas subdiafragm\u00e1ticamente vagotomizadas. En el presente trabajo, preguntamos si la vagotom\u00eda afecta los otros dos tipos de respuesta termorreguladora.\u00a0<\/p>\n<p>Las ratas Wistar adultas se sometieron a vagotomizaci\u00f3n (u operaci\u00f3n simulada) y se les implant\u00f3 un cat\u00e9ter intravenoso. En el d\u00eda 28 postvagotom\u00eda, las respuestas t\u00e9rmicas a la inyecci\u00f3n intravenosa de Escherichia coli LPS (0, 1, 10, 100 o 1,000 microgramos \/ kg) se probaron en un ambiente neutral (30 grados C) o ligeramente fr\u00edo (25 grados C). Se obtuvieron tres resultados principales. 1) En las ratas operadas con simulaci\u00f3n, la dosis de 1 microgramo \/ kg de LPS caus\u00f3 a 30 grados C una fiebre monof\u00e1sica con un aumento m\u00e1ximo de la temperatura del colon (Tc) de aproximadamente 0.6 grados C; esta respuesta disminuy\u00f3 (sin cambios de Tc) en las ratas vagotomizadas. 2) A 30 grados C, todas las respuestas a dosis m\u00e1s altas de LPS (10-1,000 microgramos \/ kg) estaban representadas por fiebres bif\u00e1sicas (cuanto mayor era la dosis, menos pronunciada era la primera y m\u00e1s pronunciada era la segunda fase); ninguna de estas fiebres bif\u00e1sicas fue alterada en los animales vagotomizados. 3) En respuesta a la dosis de 1,000 microgramos \/ kg a 25 grados C, ocurri\u00f3 hipotermia: la Tc cambi\u00f3 en -0.5 +\/- 0.1 grados C (nadir); esta hipotermia fue exagerada (-1.1 +\/- 0.1 grados C) en las ratas vagotomizadas.\u00a0<\/p>\n<p>Se concluye que la aferencia vagal puede ser importante en la mediaci\u00f3n de la respuesta a peque\u00f1as cantidades de LPS circulante, mientras que la respuesta a grandes cantidades se produce principalmente (si no exclusivamente) por mecanismos no vagales. Esta diferencia puede explicarse por los mecanismos dependientes de la dosis del procesamiento de pir\u00f3genos ex\u00f3genos. Los animales vagotomizados tambi\u00e9n parecen ser m\u00e1s sensibles a la acci\u00f3n hipotermia de LPS en un ambiente fresco; Los mecanismos de este fen\u00f3meno siguen siendo especulativos. mientras que la respuesta a grandes cantidades se produce principalmente (si no exclusivamente) por mecanismos no vagales.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Romanovsky, A. A., Simons, C. T., Szekely, M., &amp; Kulchitsky, V. A. (1997).\u00a0The vagus nerve in the thermoregulatory response to systemic inflammation.\u00a0American Journal of Physiology-Regulatory, Integrative and Comparative Physiology,\u00a0273(1), R407-R413. Experimentalmente, la inflamaci\u00f3n sist\u00e9mica inducida por una inyecci\u00f3n intravenosa en bolo de lipopolisac\u00e1rido (LPS) puede ir acompa\u00f1ada de tres respuestas termorreguladoras diferentes: fiebre monof\u00e1sica (la [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-40040","post","type-post","status-publish","format-standard","hentry","category-naturopatia-descriptiva"],"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 Descriptiva: &quot;El nervio vago en la respuesta termorreguladora a la inflamaci\u00f3n sist\u00e9mica&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=40040\" \/>\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 Descriptiva: &quot;El nervio vago en la respuesta termorreguladora a la inflamaci\u00f3n sist\u00e9mica&quot; -\" \/>\n<meta property=\"og:description\" content=\"Romanovsky, A. A., Simons, C. T., Szekely, M., &amp; Kulchitsky, V. A. (1997).\u00a0The vagus nerve in the thermoregulatory response to systemic inflammation.\u00a0American Journal of Physiology-Regulatory, Integrative and Comparative Physiology,\u00a0273(1), R407-R413. Experimentalmente, la inflamaci\u00f3n sist\u00e9mica inducida por una inyecci\u00f3n intravenosa en bolo de lipopolisac\u00e1rido (LPS) puede ir acompa\u00f1ada de tres respuestas termorreguladoras diferentes: fiebre monof\u00e1sica (la [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rina.naturopatiadigital.eu\/?p=40040\" \/>\n<meta property=\"article:published_time\" content=\"2020-04-25T04:30:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/1.bp.blogspot.com\/-566Z7pPNItM\/XqRRshMlKpI\/AAAAAAAAcbg\/8ebomzCczFkNoAhV4tZ5GzvqBpEaUIZXACLcBGAsYHQ\/s1600\/American_Journal%2Bof%2BPhysiology-Regulatory%252C%2BIntegrative%2Band%2BComparative%2BPhysiology.jpg\" \/>\n<meta name=\"author\" content=\"admin2\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin2\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta 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