Fig. 6From: Histological analysis of arteriovenous anastomosis-like vessels established in the corpus luteum of cows during luteolysisDual immunostaining for SMA and a proliferation marker, Ki-67. Ki-67-positive proliferating cells are abundant in the CL at the early-luteal (EL) stage (a) but decreases during the mid-luteal (ML) and late-luteal (LL) stages (b, c). Most of SMA-positive cells (red) are not immunoreactive for Ki-67 (green) (d−f). Bars = 100 μmBack to article page