Genetic Basis of Hypertrophic Cardiomyopathy in Cats

MYH7 肥厚性心肌病 肌肉肥大 内科学 病态的 医学 心脏病学 左心室肥大 生物 遗传学 基因 血压 基因亚型
作者
Arkadiusz Grzeczka,Szymon Graczyk,Robert Pasławski,Urszula Pasławska
出处
期刊:Current Issues in Molecular Biology [MDPI AG]
卷期号:46 (8): 8752-8766
标识
DOI:10.3390/cimb46080517
摘要

Hypertrophic cardiomyopathy (HCM) is a common cardiovascular condition in cats, affecting yth males and females of all ages. Some breeds, such as Ragdolls and Maine Coons, can develop HCM at a young age. The disease has a wide range of progression and severity, characterized by various pathological changes in the heart, including arteritis, fibrous tissue deposition, and myocardial cell hypertrophy. Left ventricular hypertrophy, which can restrict blood flow, is a common feature of HCM. The disease may persist into old age and eventually lead to heart failure and increased diastolic pressure. The basis of HCM in cats is thought to be genetic, although the exact mechanisms are not fully understood. Mutations in sarcomeric proteins, in particular myosin-binding protein C (MYBPC3), have been identified in cats with HCM. Two specific mutations, MYBPC3 [R818W] and MYBPC3 [A31P], have been classified as ‘pathogenic’. Other variants in genes such as MYBPC3, TNNT2, ALMS1, and MYH7 are also associated with HCM. However, there are cases where cats without known genetic mutations still develop HCM, suggesting the presence of unknown genetic factors contributing to the disease. This work aims to summarise the new knowledge of HCM in cats and the alterations in cardiac tissue as a result of genetic variants.
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