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A Rare Case of Coexisting Mutation in Desmin and Thioredoxin Reductase 2 Genes Causing Dilated Cardiomyopathy

Nazima Khatun1, Sahil Zaveri1, Louis Salciccioli2

  • 1Internal Medicine, State University of New York Downstate Medical Center, Brooklyn, USA.

Cureus
|July 19, 2023
PubMed

Insights

A rare case of dilated cardiomyopathy in an 18-year-old female involved mutations in both desmin (DES) and mitochondrial thioredoxin reductase 2 (TXNRD-2) genes. This highlights a potential genetic link between cytoskeletal integrity and mitochondrial function in heart disease.

Area of Science:

  • Cardiovascular Biology
  • Genetics
  • Mitochondrial Medicine

Background:

  • Desmin (DES) is crucial for cardiomyocyte structure and cytoskeletal organization in striated muscle.
  • Mitochondrial thioredoxin reductase 2 (TXNRD-2) plays a vital role in scavenging mitochondrial oxygen radicals.

Observation:

  • A rare case of dilated cardiomyopathy (DCM) was identified in an 18-year-old female.
  • The patient presented with a heterozygous mutation affecting both the DES and TXNRD-2 genes.

Findings:

  • The study details a unique genetic profile in a young DCM patient.
  • Co-occurrence of mutations in DES and TXNRD-2 genes suggests a complex etiology for cardiomyopathy.

Implications:

  • This case may elucidate the interplay between cytoskeletal proteins and mitochondrial function in cardiac health.
  • Further research into combined DES and TXNRD-2 mutations could reveal novel therapeutic targets for dilated cardiomyopathy.

Keywords:
desmindilated cardiomyopathy (dcm)heart failure with reduced ejection fractionrare genetic mutationthioredoxin reductase 2

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