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DNA Microarrays: Sample Quality Control, Array Hybridization and Scanning
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Identification of anesthetic-induced expression changes using DNA microarray.

Zaiqi Yang1, Mengyuan Zhang1, Gongming Wang1

  • 1Department of Anesthesiology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.

Molecular Medicine Reports
|October 18, 2014
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Sevoflurane and propofol anesthesia may synergistically protect against myocardial reperfusion injury during off-pump coronary artery bypass graft (CABG) surgery by altering atrial gene expression. This study analyzed gene changes in patients undergoing CABG.

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Area of Science:

  • Cardiovascular Anesthesiology
  • Molecular Biology
  • Genomics

Background:

  • Anesthetic agents like sevoflurane and propofol are crucial in cardiac surgery.
  • Understanding their impact on atrial gene expression is vital for patient outcomes.
  • Myocardial reperfusion injury remains a concern in off-pump coronary artery bypass graft (CABG) procedures.

Purpose of the Study:

  • To identify and compare changes in atrial gene expression induced by sevoflurane and propofol.
  • To analyze differentially expressed genes (DEGs) and their functional roles.
  • To investigate the potential synergistic effects of these anesthetics on myocardial protection.

Main Methods:

  • Downloaded gene expression profiles (GSE4386) from the Gene Expression Omnibus database.
  • Analyzed atrial samples from patients undergoing off-pump CABG surgery.
  • Utilized DNA microarray, identified DEGs, and performed functional enrichment analysis.

Main Results:

  • Identified common, sevoflurane-specific, and propofol-specific DEGs.
  • Found significant overlap in DEGs between anesthetic groups (31.3% common).
  • Functional analysis revealed DEGs involved in 'regulation of transcription' and 'regulation of cellular process'.

Conclusions:

  • Sevoflurane and propofol induce distinct yet overlapping changes in atrial gene expression.
  • The identified DEGs are involved in key cellular regulatory processes.
  • These findings suggest a potential synergistic protective role of sevoflurane and propofol against myocardial reperfusion injury in off-pump CABG.