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Updated: Jun 16, 2026

Analysis of Cardiac Contractile Dysfunction and Ca2+ Transients in Rodent Myocytes
Published on: May 25, 2022
Proteomics analysis of cardiac muscle from rats with peroxisomal proliferator-activated receptor alpha (PPARalpha)
Masafumi Miyazaki1, Ippei Nakagawa, Shigeru Koga
1ActivX Biosciences Inc., La Jolla, CA 92037, USA. masafumi.miyazaki@mb.kyorin-pharm.co.jp
Abstract:
To investigate peroxisomal proliferator-activated receptor alpha (PPARalpha) signal responses in heart muscle, we performed LC-MS/MS-based proteomics analysis of heart muscle from rats given fenofibrate or clofibrate. Fenofibrate increased the expression of ACAA2, DECR1, and ECH1 consistent with activation of PPARalpha. Fenofibrate and clofibrate reduced the expression of 10 and 12 proteins, respectively with the expression of ACSL1, SLC25A4, A1BG, HADHA, ATP2A2, BDH1, ETFDH, HADHB, and CPT2 being reduced in common with both of fibrate-treated groups. The approach adopted in this study provides an efficient method for monitoring global changes in protein expression.
