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Native valve infective endocarditis (IE) is rare, with an incidence of 3–7 cases per 100,000 person-years.1,2 Cardiac structural complications from local infection extension include valvular destruction, peri-annular abscess and fistula formation. Left ventricular pseudoaneurysm (LVP) from IE is exceedingly rare, occurring in <1% of cases, and is associated with high morbidity and mortality. Diagnosis is challenging due to nonspecific symptoms […]

HAS-1 genetic polymorphism in sporadic abdominal aortic aneurysm

Chiara Armani, Stefano Landi, Marco Nuti, Rossella Di Stefano, Alberto Balbarini
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Published Online: Jul 30th 2018 Heart International 2009;4(1):e1 DOI: https://doi.org/10.4081/hi.2009.e1
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Abstract

Overview

The hyaluronan synthase 1 (HAS-1) gene
encodes a plasma membrane protein that synthesizes
hyaluronan (HA), an extracellular
matrix molecule. Accumulating evidence
emphasizes the relevance of HA metabolism in
an increasing number of processes of clinical
interest, including abdominal aortic aneurysm
(AAA). The existence of aberrant splicing variants
of the HAS-1 gene could partly explain the
altered extracellular matrix architecture and
influence various biological functions, resulting
in progressive arterial wall failure in the
development of AAA. In the present study, we
assessed the hypothesis that HAS-1 genetic
833A/G polymorphism could be associated with
the risk of AAA by performing a case-control
association study, involving AAA patients and
healthy matched donors.

Keywords

Aneurysm, genetics, hyaluronan synthase, SNP, susceptibility.

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Article Information

Correspondence

Chiara Armani, Cardiac Thoracic and Vascular Department, University of Pisa, via Paradisa 2, 56124 Pisa, Italy E-mail: armani.chiara@yahoo.it

Received

2008-07-17

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