{"id":40786,"date":"2020-05-13T02:30:09","date_gmt":"2020-05-13T00:30:09","guid":{"rendered":"https:\/\/naturopatiadigital.eu\/?p=40786"},"modified":"2020-05-13T02:30:09","modified_gmt":"2020-05-13T00:30:09","slug":"40786","status":"publish","type":"post","link":"https:\/\/rina.naturopatiadigital.eu\/?p=40786","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\/-B-6GYQ3qudM\/XrvxUcWbVfI\/AAAAAAAAczI\/2dcvJAdRPcM2wl50HRi5awEy_JB5wp50QCLcBGAsYHQ\/s1600\/American_Journal%2Bof%2BPhysiology-Regulatory%252C%2BIntegrative%2Band%2BComparative%2BPhysiology.jpg\"><img decoding=\"async\" class=\"alignleft\" src=\"https:\/\/1.bp.blogspot.com\/-B-6GYQ3qudM\/XrvxUcWbVfI\/AAAAAAAAczI\/2dcvJAdRPcM2wl50HRi5awEy_JB5wp50QCLcBGAsYHQ\/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>, 273(1), R407-R413.<\/p>\n<p>CONTEXTO: 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). En nuestro reciente estudio [Romanovsky, A. A., V. A. Kulchitsky, C. T. Simons, N. Sugimoto, y M. Sz\u00e9kely. Am. J. Physiol. (Regulatory Integrative Comp. Physiol.). En prensa], la fiebre monof\u00e1sica no se produjo en ratas subdiafragm\u00e1ticamente vagotomizadas.\u00a0<\/p>\n<p>OBJETIVO: En el presente trabajo, nos preguntamos si la vagotom\u00eda afecta a los otros dos tipos de respuesta termorreguladora.\u00a0<\/p>\n<p>M\u00c9TODO: A las ratas adultas Wistar se les realiz\u00f3 una vagotom\u00eda (o una operaci\u00f3n falsa) y se les implant\u00f3 un cat\u00e9ter intravenoso. En el d\u00eda 28 despu\u00e9s de la vagotom\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 neutro (30 grados C) o ligeramente fr\u00edo (25 grados C).\u00a0<\/p>\n<p>RESULTADOS: Se obtuvieron tres resultados importantes. 1) En las ratas operadas de manera simulada, 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 col\u00f3nica (Tc) de aproximadamente 0,6 grados C; esta respuesta se redujo (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 m\u00e1s alta era la dosis, menos pronunciada era la primera y m\u00e1s pronunciada la segunda fase); ninguna de estas fiebres bif\u00e1sicas se alter\u00f3 en los animales vagotomizados. 3) En respuesta a la dosis de 1.000 microgramos\/kg a 25 grados C, se produjo una 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>CONCLUSI\u00d3N: Se llega a la conclusi\u00f3n de que la afertaci\u00f3n vagal puede ser importante en la mediaci\u00f3n de la respuesta a cantidades menores de LPS circulante, mientras que la respuesta a cantidades mayores 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 hipotermizante del LPS en un ambiente fr\u00edo; los mecanismos de este fen\u00f3meno siguen siendo especulativos.<\/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, 273(1), R407-R413. CONTEXTO: 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 [&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-40786","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=40786\" \/>\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, 273(1), R407-R413. CONTEXTO: 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 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rina.naturopatiadigital.eu\/?p=40786\" \/>\n<meta property=\"article:published_time\" content=\"2020-05-13T00:30:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/1.bp.blogspot.com\/-B-6GYQ3qudM\/XrvxUcWbVfI\/AAAAAAAAczI\/2dcvJAdRPcM2wl50HRi5awEy_JB5wp50QCLcBGAsYHQ\/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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