Abstract Title:

BPA disrupts the cardioprotection by 17β-oestradiol against ischemia/reperfusion injury in isolated guinea pig hearts.

Abstract Source:

Steroids. 2019 Mar 20. Epub 2019 Mar 20. PMID: 30904504

Abstract Author(s):

Nan Mao, Qinghua Gao, Tong Zhu, Liying Hao

Article Affiliation:

Nan Mao


Bisphenol A (BPA) is an environmental oestrogen or xenoestrogen (XEs). XEs represent a health risk due to their potential for endocrine disruption and ability to mimic estrogenic activity. The effects of BPA on isolated hearts under normal and ischemia/reperfusion (I/R) conditions were investigated for the first time, with a focus on the effects of BPA and 17β-oestradiol (E) co-administration on I/R injury. Our results indicated that BPA at 10M and 10M did not significantly affect Heart rate (HR), coronary flow (CF), lactate dehydrogenase (LDH) or creatine kinase (CK) release in normal or I/R isolated hearts within the 90 minutes. However, Eexerted a protective effect against I/R injury, whereas, BPA inhibited the cardio-protective effects of Eon HR, CF, and LDH and CK release. Furthermore, BPA in combination with Eaggravated I/R injury by increasing infarct size and causing a more severe ultrastructural disruption as compared to treatment with Ealone. Based on our results, we conclude that BPA inhibits the cardio-protective effects of Eon I/R-injured hearts, despite not significantly affecting normal or I/R isolated hearts.

Study Type : Animal Study

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