Serum CIAPIN1 is lower in septic patients with cardiac dysfunction

Area of Science:

• Biochemistry
• Cardiology
• Immunology

Background:

• Sepsis can lead to cardiac dysfunction and systemic inflammation.
• Cytokine-induced apoptosis inhibitor 1 (CIAPIN1) role in sepsis-induced cardiac dysfunction is not well understood.

Purpose of the Study:

• To investigate the clinical significance of serum CIAPIN1 in sepsis patients.
• To explore the impact of CIAPIN1 on cardiac dysfunction and inflammatory response in sepsis.

Main Methods:

• Cross-sectional study of 80 healthy individuals and 95 severe sepsis patients.
• In vitro study using H9c2 cells treated with LPS to model septic cardiomyopathy.
• Analysis of serum CIAPIN1, inflammatory cytokines (TNF-α, IL-6, IL-1β), and cardiac markers (CK-MB, hs-cTnT).
• Statistical analysis including Pearson correlation, ANOVA, ROC curve, and CIAPIN1 knockdown experiments.

Main Results:

• Serum CIAPIN1 levels were significantly lower in sepsis patients with cardiac dysfunction.
• CIAPIN1 expression negatively correlated with inflammatory cytokines and cardiac markers.
• ROC curve analysis indicated CIAPIN1's potential as a biomarker for sepsis identification.
• CIAPIN1 knockdown in H9c2 cells exacerbated LPS-induced cardiomyocyte apoptosis and dysfunction.

Conclusions:

• Serum CIAPIN1 may serve as a potential biomarker for sepsis and septic cardiomyopathy.
• CIAPIN1 plays a protective role against sepsis-induced cardiac dysfunction and inflammation.