Abstract
Background
Aging is a main risk factor for the development of cardiovascular diseases (CVDs). Gallic acid (GA) is a phenolic compound derived from a wide range of fruits. GA has a wide spectrum of pharmacological properties, including anti-oxidative, anti-inflammatory, and cardioprotective effects. This research was conducted to determine the cardioprotective effect of GA on cardiac hypertrophy in aged rats.
Methods and results
Following histological evaluation and through observing the heart, we found that GA improved the cardiac hypertrophy induced by D-galactose (D-GAL) in cardiac cells. To clarify the causes for this anti-aging effect, we evaluated the malonic dialdehyde levels and antioxidant enzyme activity in rat cardiac tissue. The levels of lactate dehydrogenase (LDH) and creatine kinase (CK-MB) in serum were measured. The levels of genes related to mitochondrial biogenesis, mitophagy, and apoptosis in cardiac tissue were surveyed. The findings represented that GA ameliorated antioxidant enzyme activity while significantly decreasing the malonic dialdehyde levels. Real-time PCR analysis proposed that GA effectively improved mitochondrial biogenesis in the heart via regulating the expression levels of Sirtuin 1 (SIRT1), PPARγ coactivator 1α (PGC1-α), nuclear factor erythroid 2–related factor 2 (Nrf2), and mitochondrial transcription factor A (TFAM). GA also mitigated apoptosis in the heart by modulating the expression levels of B-cell lymphoma protein 2 (Bcl-2) and Bcl-2-associated X (Bax). In addition, GA improved serum LDH and CK-MB levels.
Conclusions
GA may alleviate aging-induced cardiac hypertrophy via anti-oxidative, mitoprotective, and anti-apoptotic mechanisms.
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Data Availability
The data used and analyzed in this study are available from the Corresponding author on reasonable request.
Abbreviations
- CVDs:
-
Cardiovascular diseases
- GA:
-
Gallic acid
- D-GAL:
-
D-galactose
- SIRT1:
-
Sirtuin 1
- PGC1-ɑ:
-
PPARγ coactivator 1-α
- TFAM:
-
Transcription Factor A, Mitochondrial
- Bcl2:
-
B-cell lymphoma protein 2
- Bax:
-
(Bcl-2)-associated X
- PINK:
-
PTEN induced putative kinase 1
- Drp1:
-
Dynamin related protein 1
- Mfn1:
-
Mitofusin-1
- Mfn2:
-
Mitofusin-2
- ROS:
-
Reactive oxygen species
- NAD:
-
Nicotinamide adenine dinucleotide
- CONT:
-
Control
- CK-MB:
-
Creatine kinase
- LDH:
-
Lactate dehydrogenase
- MDA:
-
Malonic dialdehyde
- SOD:
-
Superoxide dismutase
- GPx:
-
Glutathione peroxidase
- CAT:
-
Catalase
- ELISA:
-
Enzyme-linked immunosorbent assay
- qRT-PCR:
-
Quantitative Real-Time Polymerase chain reaction
- HW:
-
Heart Weight
- BW:
-
Body Weight
- H&E:
-
Hematoxylin and eosin
- SE:
-
Standard error
- ANOVA:
-
Analysis of variance
- WHW:
-
Whole Heart Weight
- Nrf2:
-
Nuclear factor erythroid 2–related factor 2
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Acknowledgements
The authors would like to thank the Hamadan University of Medical Sciences for funding.
Funding
The study was funded by Vice-chancellor for Research and Technology, Hamadan University of Medical Sciences (No. 140005123991).
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MZ: Investigation, Supervision, Project administration. AS: Conceptualization, Formal analysis, Writing - Review & Editing. AZ: Formal analysis, Writing - Review & Editing. SR: Investigation. SAK: Writing - Review & Editing. FRA: Conceptualization, Formal analysis, Investigation, Writing - Original Draft, Funding acquisition. The authors read and approved the final manuscript.
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Ethical approval was granted by the Ethics Committee of Hamadan University of Medical Sciences (Ethics Committee permission No. IR.UMSHA.REC.1400.270).
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The present study has been submitted to a preprint platform. DOI: https://doi.org/10.21203/rs.3.rs-2491748/v1, Posted Date: January 23rd, 2023, License: This work is licensed under a Creative Commons Attribution 4.0 International License.
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Zarei, M., Sarihi, A., Zamani, A. et al. Mitochondrial biogenesis and apoptosis as underlying mechanisms involved in the cardioprotective effects of Gallic acid against D-galactose-induced aging. Mol Biol Rep 50, 8005–8014 (2023). https://doi.org/10.1007/s11033-023-08670-4
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DOI: https://doi.org/10.1007/s11033-023-08670-4