Silva SJD, Rassi S, Pereira ADC. Angiotensin-Converting Enzyme ID Polymorphism in Patients with Heart Failure Secondary to Chagas Disease.
Arq Bras Cardiol 2017;
109:307-312. [PMID:
28977050 PMCID:
PMC5644210 DOI:
10.5935/abc.20170137]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 07/04/2017] [Indexed: 01/04/2023] Open
Abstract
Background
Changes in the angiotensin-converting enzyme (ACE) gene may contribute to the
increase in blood pressure and consequently to the onset of heart failure
(HF). The role of polymorphism is very controversial, and its identification
in patients with HF secondary to Chagas disease in the Brazilian population
is required.
Objective
To determine ACE polymorphism in patients with HF secondary to Chagas disease
and patients with Chagas disease without systolic dysfunction, and to
evaluate the relationship of the ACE polymorphism with different clinical
variables.
Methods
This was a comparative clinical study with 193 participants, 103 of them with
HF secondary to Chagas disease and 90 with Chagas disease without systolic
dysfunction. All patients attended the outpatient department of the General
Hospital of the Federal University of Goias general hospital. Alleles I and
D of ACE polymorphism were identified by polymerase chain reaction of the
respective intron 16 fragments in the ACE gene and visualized by
electrophoresis.
Results
In the group of HF patients, 63% were male, whereas 53.6% of patients with
Chagas disease without systolic dysfunction were female (p = 0,001). The
time from diagnosis varied from 1 to 50 years. Distribution of DD, ID and II
genotypes was similar between the two groups, without statistical
significance (p = 0,692). There was no difference in clinical
characteristics or I/D genotypes between the groups. Age was significantly
different between the groups (p = 0,001), and mean age of patients with HF
was 62.5 years.
Conclusion
No differences were observed in the distribution of (Insertion/Deletion)
genotype frequencies of ACE polymorphism between the studied groups. The use
of this genetic biomarker was not useful in detecting a possible
relationship between ACE polymorphism and clinical manifestations in HF
secondary to Chagas disease.
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