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Updated: Jun 10, 2026

Longitudinal Intravital Microscopy Using a Mammary Imaging Window with Replaceable Lid
Published on: January 20, 2022
Temporal and spatial expression of Muc1 during implantation in sows
Qian Ren1, Shu Guan, Jinluan Fu
1College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; E-Mails: qianer0101@gmail.com (Q.R.); guanshu8@gmail.com (S.G.).
Abstract:
Recent evidence points to an important role for Muc1 in embryo implantation. In this study, Real-time PCR and immunohistochemistry were used to study mRNA and protein levels at, and between, the attachment sites of the endometrium of Day 13, 18 and 24 pregnant sows. The results indicate that Muc1 mRNA expression was higher between attachment sites than at attachment sites during implantation and this effect was significant on Day 13 (P < 0.01) and 24 (P < 0.01). Intense Muc1 immunostaining was observed in luminal epithelium and stroma and the staining between attachment sites was stronger than at attachment sites on Days 13 and 18. Collectively, these results suggest the crucial role of Muc1 in successful implantation and embryo survival.
