Related Experiment Video
Updated: Sep 25, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Genetic Evaluation of Late-Onset Hypertrophic Cardiomyopathy: An Autobiographical Case Report
Simon Carlo1, Laura F Rodríguez-Fernández2, Fabiola A Benítez Ríos2
1Biochemistry/Pediatrics/Psychiatry, Ponce Health Sciences University, Ponce, PRI.
Insights
Genetic testing revealed variants in ALPK3 and desmoplakin genes, highlighting the importance of genetic screening for late-onset hypertrophic cardiomyopathy. This case underscores the role of genetic factors in cardiovascular disease etiology.
Area of Science:
- Cardiology
- Genetics
- Molecular Biology
Background:
- Cardiomyopathy is a cardiovascular disease with diverse causes, including genetic mutations.
- Genetic mutations in sarcomeric proteins are strongly correlated with cardiomyopathy presentation.
- Late-onset hypertrophic cardiomyopathy can manifest with symptoms like chest pain and palpitations.
Observation:
- A case report details a personal diagnosis of late-onset hypertrophic cardiomyopathy.
- Symptoms of chest pain and palpitations were present for approximately two years.
- The patient, a geneticist, pursued genetic testing upon diagnosis.
Findings:
- Genetic testing identified a heterozygous variant of uncertain significance (VUS) in the ALPK3 gene (c.399dup).
- A heterozygous VUS was also found in the desmoplakin (DSP) gene (c.7552G>A).
- These genetic findings are associated with the patient's hypertrophic cardiomyopathy.
Implications:
- This case emphasizes the critical role of genetic screening in identifying the etiology of cardiomyopathy.
- Understanding genetic variants in genes like ALPK3 and DSP is crucial for diagnosing and managing cardiovascular diseases.
- Autobiographical case reports can illuminate the clinical significance of genetic testing in personalized medicine.
Abstract:
Cardiomyopathy, also known as a pathology with a cardiovascular cause, can be further differentiated into multiple categories including genetic. Strong correlations between genetic mutations in sarcomeric proteins and presentation of cardiomyopathies have been made. This case report describes the clinical diagnosis of my late-onset hypertrophic cardiomyopathy, which was brought upon by symptoms of chest pain and palpitations that started approximately two years ago and had mostly gone unnoticed during this period. As a geneticist, I decided to undergo genetic test upon diagnosis. These tests found a heterozygous variant of uncertain significance (VUS) in the ALPK3 gene, c.399dup (p.Gly134ArgfsTer30), and a heterozygous c.7552G>A (p.Val2518Ile) VUS in the desmoplakin (DSP) gene. This autobiographical case report hopes to shed light on the importance of genetic screening in the search for the etiology of clinical symptoms.
Related Concept Videos
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy V: Interprofessional Care
Cardiomyopathy II: Dilated Cardiomyopathy
Heart Failure II: Pathophysiology
Cardiomyopathy IV: Restrictive Cardiomyopathy

