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Abstract Title:

Blueberry extract attenuates doxorubicin-induced damage in H9c2 cardiac cells.

Abstract Source:

Can J Physiol Pharmacol. 2019 Jul 31:1-5. Epub 2019 Jul 31. PMID: 31365282

Abstract Author(s):

Yue Sun, Ashley S Nemec-Bakk, Azim U Mallik, Ashim K Bagchi, Pawan K Singal, Neelam Khaper

Article Affiliation:

Yue Sun

Abstract:

The objective of this study was to analyze the cardioprotective roles of 3 wild blueberry genotypes and one commercial blueberry genotype by measuring markers of oxidative stress and cell death in H9c2 cardiac cells exposed to doxorubicin. Ripe berries of the 3 wild blueberry genotypes were collected from a 10-year-old clearcut forest near Nipigon, Ontario, Canada (49°1'39″N, 87°52'21″W), whereas the commercial blueberries were purchased from a local grocery store. H9c2 cardiac cells were incubated with 15 μg gallic acid equivalent/mL blueberry extract for 4 h followed by 5 μM doxorubicin for 4 h, and oxidative stress and active caspase 3/7 were analyzed. The surface area as well as total phenolic content was significantly higher in all 3 wild blueberry genotypes compared with the commercial species. Increase in oxidative stress due to doxorubicin exposure was attenuated by pre-treatment with all 3 types of wild blueberries but not by commercial berries. Furthermore, increase in caspase 3/7 activity was also attenuated by all 3 wild genotypes as well. These data demonstrate that wild blueberry extracts can attenuate doxorubicin-induced damage to H9c2 cardiomyocytes through reduction in oxidative stress and apoptosis, whereas the commercial blueberry had little effect.

Study Type : In Vitro Study

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