{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T06:42:05Z","timestamp":1790664125758,"version":"4.1.0"},"reference-count":40,"publisher":"BMJ","issue":"2","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2016,1,14]]},"published-print":{"date-parts":[[2016,2]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To explore the association between ACE gene insertion\/deletion (I\/D) polymorphism with left ventricular hypertrophy (LVH) in patients with hypertension who have developed heart failure with preserved ejection fraction (HFpEF). Being a major contributor to the development of diastolic heart dysfunction, the renin angiotensin aldosterone system and its genetic variations are thought to induce LVH in hypertensive hearts apart from haemodynamic factors.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Case control study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>An Iranian referral university hospital.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>\n                      176 patients with hypertension and a diagnosis of HFpEF on presence of symptoms of heart failure plus Doppler echocardiographic documentation of left ventricular (LV) diastolic dysfunction and\/or elevated NT-proBNP levels. Those with significant coronary, valvular, pericardial and structural heart diseases were excluded as well as patients with atrial fibrillation, renal failure and pulmonary causes of dyspnoea. They were divided into two cohorts of 88 cases with and 88 controls without LVH, after determination of LV mass index, using two-dimensional and M-mode echocardiography. The I\/D polymorphism of the\n                      <jats:italic>ACE<\/jats:italic>\n                      gene was determined using the PCR method.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The D allele was significantly more prevalent among cases with compared with controls without LVH (p=0.0007). Genotype distributions also differed significantly under additive (p=0.005, OR=0.53, 95% CI 0.34 to 0.84) and recessive (p=0.001, OR=0.29, 95% CI 0.13 to 0.66) models.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      In patients with hypertension who develop HFpEF, the D allele of the\n                      <jats:italic>ACE<\/jats:italic>\n                      gene is probably associated with the development of LVH. With the detrimental effects of LVH on the heart's diastolic properties, this can signify the role of genetic contributors to the development of HFpEF in patients with hypertension and may serve as a future risk predictor for the disease.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2015-010282","type":"journal-article","created":{"date-parts":[[2016,2,9]],"date-time":"2016-02-09T22:13:14Z","timestamp":1455055994000},"page":"e010282","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":28,"title":["Association of ACE gene D polymorphism with left ventricular hypertrophy in patients with diastolic heart failure: a case\u2013control study"],"prefix":"10.1136","volume":"6","author":[{"given":"Ehsan","family":"Bahramali","sequence":"first","affiliation":[{"name":"Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran"},{"name":"Cardiology Departments, Fasa 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