“…In addition, this mutation was reported in several mitochondrial diseases such as mitochondrial diabetes, myopathy, ataxia, strokes, ophthalmoplegia, epilepsy, and cardiomyopathy (Frederiksen et al, 2009). In fact, the m.3243A4G mutation was described associated with hypertrophic cardiomyopathy (Ito et al, 1992;Majamaa-Voltti et al, 2002), and with dilated cardiomyopathy (Tsujita et al, 2008;Vilarinho et al, 1997). In this study, the m.3243A4G is described in the first time associated to dilated cardiomyopathy in Tunisian population when it was previously described only in 1.07% in Tunisian diabetic population (Bouhaha et al, 2010) but it was absent in Tunisian patients with several mitochondrial diseases (Mezghani et al, 2010;Mkaouar-Rebai et al, 2007).…”