{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T22:36:59Z","timestamp":1789511819602,"version":"build-2803163510"},"reference-count":55,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"15","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["JAHA"],"published-print":{"date-parts":[[2022,8,2]]},"abstract":"<jats:sec xml:lang=\"en\">\n            <jats:title>Background<\/jats:title>\n            <jats:p xml:lang=\"en\">Cardiac hypertrophy is associated with abnormal electrophysiology and increased arrhythmia risk. This study assessed whether candesartan cilexetil, an angiotensin II type 1 receptor blocker, could suppress arrhythmogenecity by attenuating cardiac electrical remodeling and calcium mishandling in rats with pressure\u2010overload hypertrophy.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec xml:lang=\"en\">\n            <jats:title>Methods and Results<\/jats:title>\n            <jats:p xml:lang=\"en\">Male Sprague\u2010Dawley rats were randomly subjected to abdominal aorta banding or sham procedure and received either candesartan cilexetil (3.0\u00a0mg\/kg per day) or vehicle by gavage for 5\u00a0weeks. Pressure overload was characterized by compensated left ventricular (LV) hypertrophy and fibrosis, increased LV pressure and its decay time, and prolonged corrected QT interval, all of which were attenuated by candesartan cilexetil treatment. Candesartan cilexetil\u2013treated banded rat hearts displayed shorter QT intervals and lower vulnerability to atrial and ventricular tachyarrhythmias than vehicle\u2010treated banded hearts. Candesartan cilexetil prevented banding\u2010induced prolonged action potential duration and reduced the occurrence of triggered activity in LV papillary muscles. In addition, the prolonged time to 50% cell relengthening and calcium transient decay time were normalized in LV myocytes from candesartan cilexetil\u2013treated banded rats, along with a normalization of decreased SERCA2a (sarco[endo]plasmic reticulum calcium\u2010ATPase) expression in LV tissues. Furthermore, candesartan cilexetil normalized depressed transient outward potassium current densities and protein and mRNA levels of both voltage\u2010gated potassium 4.2 and 4.3 channel subunits (Kv4.2 and Kv4.3) in banded rats.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec xml:lang=\"en\">\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p xml:lang=\"en\">Candesartan cilexetil protects the heart from pressure overload\u2010induced adverse electrical remodeling by preserving potassium channel densities. In addition, calcium handling and its molecular regulation also improved after treatment. These beneficial effects may contribute to a lower susceptibility to arrhythmias in hearts from candesartan cilexetil\u2013treated pressure\u2010overloaded rats.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/jaha.121.024285","type":"journal-article","created":{"date-parts":[[2022,7,19]],"date-time":"2022-07-19T09:01:23Z","timestamp":1658221283000},"update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":6,"title":["Candesartan Cilexetil Attenuates Arrhythmogenicity Following Pressure Overload in Rats via the Modulation of Cardiac Electrical and Structural Remodeling and Calcium Handling Dysfunction"],"prefix":"10.1161","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6967-8758","authenticated-orcid":false,"given":"Gwo\u2010Jyh","family":"Chang","sequence":"first","affiliation":[{"name":"Graduate Institute of Clinical Medicinal Sciences College of Medicine Chang Gung University Tao\u2010Yuan Taiwan"},{"name":"Cardiovascular Division of Medicine Chang Gung Memorial Hospital Tao\u2010Yuan Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yung\u2010Hsin","family":"Yeh","sequence":"additional","affiliation":[{"name":"Cardiovascular Division of Medicine Chang Gung Memorial Hospital Tao\u2010Yuan Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei\u2010Jan","family":"Chen","sequence":"additional","affiliation":[{"name":"Cardiovascular Division of Medicine Chang Gung Memorial Hospital Tao\u2010Yuan Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu\u2010Shien","family":"Ko","sequence":"additional","affiliation":[{"name":"Cardiovascular Division of Medicine Chang Gung Memorial Hospital Tao\u2010Yuan Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying\u2010Ju","family":"Lai","sequence":"additional","affiliation":[{"name":"Cardiovascular Division of Medicine Chang Gung Memorial Hospital Tao\u2010Yuan Taiwan"},{"name":"Department of Respiratory Therapy College of Medicine Chang Gung University Tao\u2010Yuan Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yun\u2010Shien","family":"Lee","sequence":"additional","affiliation":[{"name":"Genomic Medicine Research Core Laboratory Chang Gung Memorial Hospital Tao\u2010Yuan Taiwan"},{"name":"Department of Biotechnology Ming Chuan University Tao\u2010Yuan Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199005313222203"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1080\/01926230500419421"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(98)00407-0"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0008-6363(99)00017-6"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0008-6363(97)00256-3"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.90.5.2534"},{"key":"e_1_3_1_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cardiores.2003.11.018"},{"key":"e_1_3_1_9_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.RES.73.2.379"},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.RES.78.2.262"},{"key":"e_1_3_1_11_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrm1155"},{"key":"e_1_3_1_12_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.ph.54.030192.001303"},{"key":"e_1_3_1_13_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.physiol.59.1.551"},{"key":"e_1_3_1_14_2","doi-asserted-by":"publisher","DOI":"10.1038\/ncb1137"},{"key":"e_1_3_1_15_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa010713"},{"key":"e_1_3_1_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(03)14282-1"},{"key":"e_1_3_1_17_2","doi-asserted-by":"publisher","DOI":"10.1517\/14656566.2011.587000"},{"key":"e_1_3_1_18_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.89.5.2204"},{"key":"e_1_3_1_19_2","first-page":"3","article-title":"Effects of candesartan, an angiotensin II receptor type I blocker, on atrial remodeling in spontaneously hypertensive rats","volume":"27","author":"Choisy SC","year":"2015","unstructured":"Choisy SC, Kim SJ, Hancox JC, Jones SA, James AF. 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