Retraction Note: MicroRNA-199a regulates myocardial fibrosis in rats by targeting SFRP5

Area of Science:

• Cardiovascular Research
• Molecular Biology
• Pharmacology

Background:

• Myocardial fibrosis is a significant pathological process contributing to heart failure.
• MicroRNAs (miRNAs) are emerging as key regulators in cardiac disease.
• Secreted frizzled-related protein 5 (SFRP5) has been implicated in fibrotic pathways.

Purpose of the Study:

• To investigate the role of microRNA-199a (miR-199a) in regulating myocardial fibrosis in a rat model.
• To explore whether SFRP5 is a direct target of miR-199a in the context of cardiac fibrosis.

Main Methods:

• Utilized a rat model of myocardial fibrosis.
• Employed molecular biology techniques to assess miR-199a expression and its effect on cardiac tissue.
• Investigated the interaction between miR-199a and SFRP5 using bioinformatics and experimental validation.

Main Results:

• The study aimed to demonstrate that miR-199a plays a role in regulating myocardial fibrosis.
• Findings were intended to show that SFRP5 is a target of miR-199a, mediating its fibrotic effects.
• Concerns regarding data integrity, specifically figure duplication in Figures 2C and 4C, were raised.

Conclusions:

• The authors initially concluded that miR-199a regulates myocardial fibrosis by targeting SFRP5 in rats.
• However, due to significant concerns about image reuse and data integrity, the manuscript has been retracted.
• The retraction highlights the importance of rigorous data verification in scientific publishing.