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The aim of this research was to determine both if and how AQP1 is associated with cardiac ischemic injury, particularly the development of edema following myocardial infarction (MI). AQP1<jats:sup>+\/+<\/jats:sup> and AQP1<jats:sup>\u2212\/\u2212<\/jats:sup> mice were used to create the MI model. Under physiological conditions, AQP1<jats:sup>\u2212\/\u2212<\/jats:sup> mice develop normally; however, in the setting of MI, they exhibit cardioprotective properties, as shown by reduced cardiac infarct size determined via NBT staining, improved cardiac function determined via left ventricular catheter measurements, decreased AQP1-dependent myocardial edema determined via water content assays and decreased apoptosis determined via TUNEL analysis. Cardiac ischemia caused by hypoxia secondary to AQP1 deficiency stabilized the expression of HIF-1\u03b1 in endothelial cells and subsequently decreased microvascular permeability, resulting in the development of edema. The AQP1-dependent myocardial edema and apoptosis contributed to the development of MI. AQP1 deficiency protected cardiac function from ischemic injury following MI. Furthermore, AQP1 deficiency reduced microvascular permeability via the stabilization of HIF-1\u03b1 levels in endothelial cells and decreased cellular apoptosis following MI.<\/jats:p>","DOI":"10.1038\/srep13807","type":"journal-article","created":{"date-parts":[[2015,9,8]],"date-time":"2015-09-08T14:13:40Z","timestamp":1441721620000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Aquaporin-1 Deficiency Protects Against Myocardial Infarction by Reducing Both Edema and Apoptosis in Mice"],"prefix":"10.1038","volume":"5","author":[{"given":"Lihua","family":"Li","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiyong","family":"Weng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenjuan","family":"Yao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuanlin","family":"Song","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tonghui","family":"Ma","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2015,9,8]]},"reference":[{"key":"BFsrep13807_CR1","doi-asserted-by":"publisher","first-page":"400","DOI":"10.1161\/CIRCULATIONAHA.110.983023","volume":"123","author":"D Fraccarollo","year":"2011","unstructured":"Fraccarollo, D. et al. 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