Myocardial dysfunction in mitochondrial diabetes treated with Coenzyme Q10 |
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Authors: | Salles João Eduardo Moisés Valdir A Almeida Dirceu R Chacra Antonio R Moisés Regina S |
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Affiliation: | M.V. Hospital for Diabetes, Diabetes Research Centre, WHO Collaborating Centre for Research, Education & Training in Diabetes, Royapuram, Chennai 600013, India. ramachandran@mvdiabetes.com |
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Abstract: | Maternally-inherited diabetes and deafness (MIDD) has been related to an A to G transition in the mitochondrial tRNA Leu (UUR) gene at the base pair 3243. Although some previous articles have reported that this mutation may be a cause of cardiomyopathy in diabetes, the degree of cardiac involvement and a specific treatment has not been established. Here, we reported a case of a patient with MIDD who developed congestive heart failure and the therapeutic usefulness of Coenzyme Q10 (CoQ10). In our patient, after the introduction of Coenzyme Q10 150 mg/day, there was a gradual improvement on left ventricular function evaluated by echocardiography. The fractional shortening (FS) and ejection fraction (EF) increased from 26 to 34% and from 49 to 64%, respectively. No side effects were noted. Three months after CoQ10 discontinuation, the parameters of systolic function evaluated by echocardiography decreased, suggesting that CoQ10 had a beneficial effect. Identification of diabetes and cardiomyopathy due to mitochondrial gene mutation may have therapeutic implications and Coenzyme Q10 is a possible adjunctive treatment in such patients. |
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