{"title":"缺氧肺血管收缩的机制:钾通道、氧化还原O(2)传感器和争议。","authors":"S. Archer, E. Michelakis","doi":"10.1152/NIPS.01388.2002","DOIUrl":null,"url":null,"abstract":"Hypoxic pulmonary vasoconstriction matches perfusion to ventilation and optimizes systemic oxygenation. Alterations in PO(2) are sensed by a vascular redox O(2) sensor in the pulmonary artery smooth muscle cell, probably within the mitochondria. This creates a signal that modulates redox-sensitive K(+) channels, thereby controlling membrane potential, Ca(2+) entry, and tone.","PeriodicalId":82140,"journal":{"name":"News in physiological sciences : an international journal of physiology produced jointly by the International Union of Physiological Sciences and the American Physiological Society","volume":"30 1","pages":"131-7"},"PeriodicalIF":0.0000,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"165","resultStr":"{\"title\":\"The mechanism(s) of hypoxic pulmonary vasoconstriction: potassium channels, redox O(2) sensors, and controversies.\",\"authors\":\"S. Archer, E. Michelakis\",\"doi\":\"10.1152/NIPS.01388.2002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Hypoxic pulmonary vasoconstriction matches perfusion to ventilation and optimizes systemic oxygenation. Alterations in PO(2) are sensed by a vascular redox O(2) sensor in the pulmonary artery smooth muscle cell, probably within the mitochondria. This creates a signal that modulates redox-sensitive K(+) channels, thereby controlling membrane potential, Ca(2+) entry, and tone.\",\"PeriodicalId\":82140,\"journal\":{\"name\":\"News in physiological sciences : an international journal of physiology produced jointly by the International Union of Physiological Sciences and the American Physiological Society\",\"volume\":\"30 1\",\"pages\":\"131-7\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"165\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"News in physiological sciences : an international journal of physiology produced jointly by the International Union of Physiological Sciences and the American Physiological Society\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1152/NIPS.01388.2002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"News in physiological sciences : an international journal of physiology produced jointly by the International Union of Physiological Sciences and the American Physiological Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1152/NIPS.01388.2002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The mechanism(s) of hypoxic pulmonary vasoconstriction: potassium channels, redox O(2) sensors, and controversies.
Hypoxic pulmonary vasoconstriction matches perfusion to ventilation and optimizes systemic oxygenation. Alterations in PO(2) are sensed by a vascular redox O(2) sensor in the pulmonary artery smooth muscle cell, probably within the mitochondria. This creates a signal that modulates redox-sensitive K(+) channels, thereby controlling membrane potential, Ca(2+) entry, and tone.
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