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Neuroprotective effect of green and roasted coffee bean extracts on cerebral ischemia-induced injury in rats

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Abstract

Stroke is a lethal event with a high incidence in Egypt. Quick early intervention can be lifesaving. Transient global ischemia (TGI), a type of ischemic stroke, is mainly instigated by cardiac arrest. Ischemia followed by reperfusion causes further neuronal cell damage. In this study, we aimed to evaluate the potential apoptotic, anti-inflammatory, and neuroprotective effects of green (GCBE) and roasted (RCBE) coffee bean water extract against transient global ischemia-induced via a bilateral common carotid artery occlusion (CAO) in rats. Before CAO, 1.5 ml/kg body weight/day of GCBE or RCBE was administered for 14 days by oral gavage. Ischemia/reperfusion (I/R) and sham groups were treated with a vehicle. Oxidative stress biomarkers and antioxidant enzyme activities, such as MDA, NO, GSH, SOD, CAT, GR, GPx, inflammatory markers TNF-α, IL-1β, and NF-κB, and BDNF were investigated. Quantitative real-time PCR analysis of mitogen-activated protein kinase pathways, in addition to heme oxygenase 1, and nuclear factor erythroid 2–related factor 2 were determined. Apoptotic markers, including Bcl-2, Bax, and caspase 3, in addition to the vascular endothelial growth factor-a, were investigated, followed by an examination of hippocampal histopathology. Pre-administration of GCBE and RCBE improved neurological function and neuronal survival, suppressed the spread of oxidative stress, inflammation, and apoptosis, and reversed most of the pathological changes. However, green coffee bean extract was more effective than roasted coffee bean extract, perhaps due to the roasting process, which may affect active compounds. In conclusion, GCBE and RCBE represent a potential clinical strategy for pre-ischemic conditioning.

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Acknowledgments

The authors would like to thank Dr. Salma Nabil Elbaradey (Pharmacology Department, Faculty of Pharmacy, Helwan University, Egypt) for her advice and help with the bilateral cerebral artery occlusion operation in rats.

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Contributions

All authors contributed to the study conception and design. Sara Rizk performed material preparation, data collection, and analysis. Sara Rizk wrote the first draft of the manuscript, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Ahmed E. Abdel Moneim.

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Research involving human participants and/or animals

All procedures used in this study complied with the Guide for the Care and Use of Laboratory Animals (National Institutes of Health), 8th edition (NIH Publication No. 85–23, revised 1985), and the guidelines of the Department of Zoology, Faculty of Science, Helwan University (approval no, HU2018/Z/SR0918–02).

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The authors declare that there are no conflicts of interest.

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Rizk, S., Taha, H., Abdel Moneim, A.E. et al. Neuroprotective effect of green and roasted coffee bean extracts on cerebral ischemia-induced injury in rats. Metab Brain Dis 36, 1943–1956 (2021). https://doi.org/10.1007/s11011-021-00769-6

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  • DOI: https://doi.org/10.1007/s11011-021-00769-6

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