Fig. 7From: Therapeutic effects of human umbilical cord mesenchymal stem cell-derived microvesicles on premature ovarian insufficiency in miceHUCMSC-MVs transplantation promotes ovarian angiogenesis in POI mice. a HE staining of the blood vessels (black arrows, × 200). b Immunohistochemistry (IHC) of CD34 in the ovaries of the control group, POI group, and POI-MVs group (× 400). c, d Ovarian blood vessels and CD34-positive cells (*P < 0.05 vs the control group, #P < 0.05 vs the POI-MVs group)Back to article page