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Intraperitoneal injection of genistein affects the distribution and metabolism of cholesterol in female yellow catfish Tachysurus fulvidraco

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Abstract

Genistein is an abundant phytoestrogen in soybean. This study aimed to determine the effects of genistein on cholesterol distribution and metabolism in female yellow catfish. Three hundred fish (49.2 ± 1.4 g) were randomly divided into five treatments and received intraperitoneal injections as follows: (1) blank, no injection; (2) control, vehicle only; (3) E2, 17β-estradiol at 10 μg·g−1 body weight; (4) low genistein doses, genistein at 10 μg·g−1 body weight; (5) high genistein doses, genistein at 100 μg·g−1 body weight. Both high and low genistein doses significantly reduced (p < 0.05) serum TC and LDL-C 24 h after injection. Moreover, the high genistein doses significantly reduced (p < 0.05) serum HDL-C. Both high and low doses of genistein significantly increased (p < 0.05) hepatic TC. Only high genistein doses significantly increased (p < 0.05) ovary TC. In the liver, both high and low genistein doses significantly increased (p < 0.05) protein and mRNA expression of ldlr. Meanwhile, high genistein doses significantly decreased (p < 0.05) mRNA expression of hmgcr. In ovary tissue, high genistein doses significantly decreased (p < 0.05) mRNA expression of cyp11a1. These results suggested that genistein affected the cholesterol distribution in female yellow catfish. Both high and low doses of genistein reduced cholesterol content in blood and increased its content in the liver by increasing the uptake of blood cholesterol. Meanwhile, high genistein doses may inhibit hepatic cholesterol synthesis. Additionally, high genistein doses could increase cholesterol transfer from serum into the ovary and disturb cholesterol conversion to pregnenolone.

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The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Acknowledgements

The authors would like to express their gratitude to EditSprings (https://www.editsprings.com/) for the expert linguistic services provided.

Funding

This study was supported by the Science Foundation Program of Ningbo University (XYL19021) and the Science and Technology Planning Project of the Science and Technology Department of the Guizhou Province (No.20172853).

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Yushi Chen carried out the experiments, analyzed the data, and wrote the manuscript. Wenbin Xu conceived the study, designed the experiments, revised the manuscript, and provided fund support. Qingji Zhang and Yilin Zhang participated in aquaculture experiment and sample collecting. Ren Mu designed the experiments and provided fund support.

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Correspondence to Wenbin Xu or Ren Mu.

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The study was carried out in accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the Ministry of Science and Technology of the People’s Republic of China and following the Regulations for The Administration of Affairs Concerning Experimental Animals, Ningbo University (#201942).

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Chen, Y., Xu, W., Zhang, Q. et al. Intraperitoneal injection of genistein affects the distribution and metabolism of cholesterol in female yellow catfish Tachysurus fulvidraco. Fish Physiol Biochem 47, 1299–1311 (2021). https://doi.org/10.1007/s10695-021-00985-y

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  • DOI: https://doi.org/10.1007/s10695-021-00985-y

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