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血红素氧合酶系统与妊娠高血压综合征研究进展

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摘要 血红素氧合酶(hemeoxygenase,HO)是近年来发现的一种抗氧化酶,广泛存在于人体多种器官和组织。HO催化血红素降解为同摩尔的一氧化碳(CO)、胆绿素和铁。胆绿素在胆绿素还原酶的作用下,迅速生成胆红素。CO可以诱导血管扩张,胆红素是内源性的抗氧化剂。HO能在正常胎盘表达,并降低胎盘的灌注压。同时对合体滋养细胞、内皮细胞的氧化损伤有保护作用。HO在妊娠高血压综合征(PIH)胎盘中表达降低,可能与该病的发病有关。
出处 《国外医学(妇产科学分册)》 CAS 2005年第2期100-103,共4页 Foreign Medical Sciences(Obstet Gynecol Fascicle)
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参考文献20

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