Figure 1 — Long-time qingyan formula extract treatment exerts estrogenic activities on reproductive tissues without side effects in ovariectomized rats and via active ER to ERE-independent gene regulation

Research Paper|Volume 11, Issue 12|pp. 4032–4049

Long-time qingyan formula extract treatment exerts estrogenic activities on reproductive tissues without side effects in ovariectomized rats and via active ER to ERE-independent gene regulation

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Figure 1.The effect of QYFE on the estrous cycle in ovariectomized (OVX) rats. EV refers to estradiol valerate, QYFE to Qing Yan Formula 70% ethanol extract. Representative photomicrographs taken at 200-X magnification. (I) OVX rats untreated; (II) Shan; (III) OVX rats treated with estradiol valerate (EV); (IV) OVX rats treated with 2.8g/kg QYFE.