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Association of polymorphisms in angiotensin-converting enzyme and type 1 angiotensin II receptor genes with coronary heart disease and the severity of coronary artery stenosis

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Summary

To explore the relation of angiotensin-converting enzyme (ACE) and angiotensin II type 1 receptor (AT1R) gene polymorphism with coronary heart disease (CHD) and the severity of coronary artery stenosis, 130 CHD patients who underwent coronary angiography were examined for the number of affected coronary vessels (⩾75% stenosis) and coronary Jeopardy score. The insertion/deletion of ACE gene polymorphism and AT1R gene polymorphism (an A→C transversion at nucleotide position 1166) were detected by using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) in CHD patients and 90 healthy serving as controls. The results showed that DD genotype and of ACE were more frequent in CHD patients than that in control group (38.5% vs 14.4%, P<0.001). The frequency of the AT1R A/C genotypes did not differ between the patients and the controls (10% vs 13.1%, P>0.05). The relative risk associated with the ACE-DD was increased by AT1R-AC genotype. Neither the number of affected coronary vessels nor the coronary score differed among the ACE I/D genotypes (P>0.05). But the number of affected coronary vessels and the coronary score were significantly greater in the patients with the AT1R-AC genotype than in those with the AA genotype (P<0.05). In conclusion, DD genotype may be risk factor for CHD and MI in Chinese people, and is not responsible for the development of the coronary artery stenosis. The AT1R-C allele may increase the relative risk associated with the ACE-DD genotype, and may be involved in the development of the stenosis of coronary artery.

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Authors and Affiliations

  1. Department of Cardiology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China

    Qiu Chunguang  (邱春光), Han Zhanying  (韩战营), Lu Wenjie  (卢文杰) & Zhang Cuntai  (张存泰)

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  1. Qiu Chunguang  (邱春光)
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  2. Han Zhanying  (韩战营)
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  3. Lu Wenjie  (卢文杰)
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  4. Zhang Cuntai  (张存泰)
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Qiu, C., Han, Z., Lu, W. et al. Association of polymorphisms in angiotensin-converting enzyme and type 1 angiotensin II receptor genes with coronary heart disease and the severity of coronary artery stenosis. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 27, 660–663 (2007). https://doi.org/10.1007/s11596-007-0610-3

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  • DOI: https://doi.org/10.1007/s11596-007-0610-3

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