Abstract
Estradiol, or 17-β-estradiol (E2), the most potent naturally occurring estrogen, is involved in the hormone-immune system interaction in both mammals and fish. However, in vivo studies are largely limited, and little is known about whether E2 exerts similar effects on both female and male zebrafish (Danio rerio). Here, we show exposure of both sexes of D. rerio to 20 nmol/L E2 resulted in a significant increase in Vg1 expression, but caused little damage to the hepatocytes, suggesting that this is the optimum E2 concentration. Also, exposure to 20 nmol/L E2 for 20 days caused a marked increase in plasma IgM levels, but had little influence on the peripheral leukocyte density, providing the first evidence of a hormone-immune system interaction in this species.
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Supported by the Natural Science Foundation of Shandong Province (No. 2007ZRB02238), and the Natural Science Foundation of Qingdao Municipality (No. 06-2-2-15-jch)
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Li, L., Zhang, S., Tong, Z. et al. In vivo effects of 17-β-estradiol on plasma immunoglobulin levels and leukocyte density in zebrafish Danio rerio . Chin. J. Ocean. Limnol. 28, 527–532 (2010). https://doi.org/10.1007/s00343-009-9048-8
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DOI: https://doi.org/10.1007/s00343-009-9048-8