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Related Concept Videos

Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...

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Related Experiment Video

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Assessing Cardiomyocyte Subtypes Following Transcription Factor-mediated Reprogramming of Mouse Embryonic Fibroblasts
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Unveiling Immune Infiltration Characterizing Genes in Hypertrophic Cardiomyopathy Through Transcriptomics and

Jianmin Gong1,2, Bo Shi1,3, Ping Yang1

  • 1Department of Clinical Laboratory, Nanjing Drum Tower Hospital, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210000, People's Republic of China.

Journal of Inflammation Research
|May 22, 2024
PubMed
Summary

This study identifies key genes and immune cell changes in hypertrophic cardiomyopathy (HCM). These findings highlight potential therapeutic targets for managing this inherited heart condition.

Keywords:
bioinformaticbiomarkerhypertrophic cardiomyopathyimmune cells infiltration

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Area of Science:

  • Cardiovascular Disease Research
  • Immunoinformatics
  • Genomic Analysis

Background:

  • Hypertrophic cardiomyopathy (HCM) is a genetic heart disease with unclear immune associations.
  • Understanding immune cell roles is crucial for developing effective HCM treatments.

Purpose of the Study:

  • To identify candidate genes and immune cell profiles linked to HCM.
  • To explore potential pathogenic pathways involved in HCM development.

Main Methods:

  • Differential gene expression analysis of the GSE32453 dataset.
  • Gene Ontology and pathway enrichment analyses (DAVID, GSEA).
  • Protein-protein interaction network construction (String, Cytoscape).
  • Immune cell infiltration analysis (CIBERSORT) and diagnostic value assessment (ROC analysis on GSE36961).
  • qRT-PCR validation using HPA database data.

Main Results:

  • Identified 254 upregulated and 181 downregulated genes in HCM.
  • Highlighted inflammatory signaling pathways (MAPK, PI3K-Akt) and myocardial contraction pathways.
  • Revealed increased infiltration of macrophages, NK cells, and monocytes in HCM patients.
  • Eight key genes (FOS, CD86, CD68, BDNF, PIK3R1, PLEK, RAC2, CCL2) showed diagnostic value (AUC > 0.8).
  • Validated gene expression in myocardial cells and fibroblasts.

Conclusions:

  • Bioinformatics analysis identified key genes, pathways, and immune cells implicated in HCM.
  • These discoveries offer potential novel therapeutic targets for clinical intervention in HCM.