TXNRD2 and dilated cardiomyopathy: Gene mutations in the TXNRD2 have been linked to rare cases of dilated cardiomyopathy (1.3%) (16), and heterozygous carriers of TXNRD2 gene mutations have also been reported to have dilated cardiomyopathy, but no individuals with pure or variant TXNRD2 exhibited any signs of cardiomyopathy or conduction disease (17).