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{"id":7546,"date":"2021-05-19T13:48:12","date_gmt":"2021-05-19T18:48:12","guid":{"rendered":"https:\/\/www.shalomplus.com.pe\/?p=7546"},"modified":"2021-05-19T13:48:12","modified_gmt":"2021-05-19T18:48:12","slug":"se-identifican-por-primera-vez-marcadores-sanguineos-que-indican-que-se-acerca-el-parto-en-una-mujer-embarazada","status":"publish","type":"post","link":"https:\/\/shalomplus.com.pe\/2021\/05\/19\/se-identifican-por-primera-vez-marcadores-sanguineos-que-indican-que-se-acerca-el-parto-en-una-mujer-embarazada\/","title":{"rendered":"Se identifican por primera vez marcadores sangu\u00edneos que indican que se acerca el parto en una mujer embarazada"},"content":{"rendered":"

Seg\u00fan un estudio de la Facultad de Medicina de la Universidad de Stanford, por primera vez se ha encontrado una manera de predecir cu\u00e1ndo se acerca el momento del parto en una mujer embarazadamediante el an\u00e1lisis de se\u00f1ales inmunol\u00f3gicas y otras se\u00f1ales biol\u00f3gicas en una muestra de sangre<\/strong>.<\/p>\n

Esto es todo un hito porque hasta ahora las estimaciones actuales eran imprecisas<\/strong>, y cualquier cosa en una ventana de cinco semanas, desde tres semanas antes hasta dos semanas despu\u00e9s de la fecha de vencimiento, se considera un tiempo normal.<\/p>\n

Marcadores sangu\u00edneos<\/h2>\n

El cambio a la biolog\u00eda materna antes del parto se caracteriza por cambios en los niveles de hormonas esteroides, factores que controlan el crecimiento de los vasos sangu\u00edneos y la coagulaci\u00f3n de la sangre, y se\u00f1ales de regulaci\u00f3n inmunol\u00f3gica.<\/p>\n

\n
\"Stanford<\/div>\n<\/div>\n

En el estudio, cada muestra de sangre se analiz\u00f3 en busca de 7.142 caracter\u00edsticas inmunitarias unicelulares, proteicas y metab\u00f3licas. Los datos se compar\u00f3 con el n\u00famero de d\u00edas antes del parto que se tom\u00f3 cada muestra de sangre, lo que garantiza que el an\u00e1lisis sea sensible a las se\u00f1ales de un parto inminente, a diferencia de las se\u00f1ales vinculadas principalmente a la duraci\u00f3n del embarazo o al crecimiento del beb\u00e9. Los investigadores identificaron, a trav\u00e9s de modelos matem\u00e1ticos, qu\u00e9 caracter\u00edsticas en la sangre predec\u00edan mejor el inicio del trabajo de parto<\/strong>.<\/p>\n

A medida que avanzaban hacia la fase previa al parto, la sangre de la mujer mostraba aumentos repentinos de hormonas esteroides como la progesterona y el cortisol, lo que confirma hallazgos previos sobre la biolog\u00eda del embarazo tard\u00edo. La sangre tambi\u00e9n mostr\u00f3 niveles decrecientes de factores que ayudan a la formaci\u00f3n de vasos sangu\u00edneos, probablemente un primer paso hacia el debilitamiento de la conexi\u00f3n entre la placenta y el \u00fatero, as\u00ed como el aumento de los niveles de factores necesarios para la coagulaci\u00f3n de la sangre, que ayudan a prevenir la p\u00e9rdida de sangre despu\u00e9s del parto. Algunas prote\u00ednas placentarias tambi\u00e9n aumentaron<\/strong>.<\/p>\n

Los investigadores esperan que sus hallazgos produzcan una prueba en los pr\u00f3ximos dos o tres a\u00f1os que los m\u00e9dicos puedan usar para predecir el inicio del de parto en embarazos saludables. El m\u00e9todo reduce el tiempo de entrega previsto a una ventana de dos semanas<\/strong>, y los investigadores esperan que sea a\u00fan m\u00e1s preciso a medida que se perfeccione la t\u00e9cnica.<\/p>\n

Actualmente, los m\u00e9dicos estiman la fecha de parto de una mujer contando 40 semanas desde el primer d\u00eda de su \u00faltimo per\u00edodo menstrual y teniendo en cuenta los datos de ultrasonido sobre el tama\u00f1o del beb\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"

Seg\u00fan un estudio de la Facultad de Medicina de la Universidad de Stanford, por primera vez se ha encontrado una manera de predecir cu\u00e1ndo se acerca el momento del parto en una mujer embarazadamediante el an\u00e1lisis de se\u00f1ales inmunol\u00f3gicas y otras se\u00f1ales biol\u00f3gicas en una muestra de sangre. Esto es todo un hito porque hasta […]<\/p>\n","protected":false},"author":4,"featured_media":7547,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[],"class_list":["post-7546","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-salud"],"_links":{"self":[{"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/posts\/7546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/comments?post=7546"}],"version-history":[{"count":0,"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/posts\/7546\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/media\/7547"}],"wp:attachment":[{"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/media?parent=7546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/categories?post=7546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shalomplus.com.pe\/wp-json\/wp\/v2\/tags?post=7546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}