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Updated: Apr 15, 2026

The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
Published on: August 2, 2017
Placental deposition of C-reactive protein is a common feature of human pregnancy
E N Kim1, B H Yoon2, E J Jeon3
1Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Asan Laboratory of Perinatal Science, Asan Medical Center, Seoul, Republic of Korea.
This study examined the occurrence of placental C-reactive protein (CRP) in normal pregnancy with term delivery, spontaneous preterm delivery (sPTD), preeclampsia, and miscarriage. CRP immunoreactivity was detected in the syncytiotrophoblast. The immunopositive rate was significantly higher in sPTD than preeclampsia. The CRP immunopositive rate was also higher in acute chorioamnionitis than those without and showed a good correlation with the maternal serum CRP concentration. CRP mRNA expression was not detected in human and mouse placentas or choriocarcinoma cells. CRP may play a role in the pathological and physiological states of pregnancy.
This study examined the occurrence of placental C-reactive protein (CRP) in normal pregnancy with term delivery, spontaneous preterm delivery (sPTD), preeclampsia, and miscarriage. CRP immunoreactivity was detected in the syncytiotrophoblast. The immunopositive rate was significantly higher in sPTD than preeclampsia. The CRP immunopositive rate was also higher in acute chorioamnionitis than those without and showed a good correlation with the maternal serum CRP concentration. CRP mRNA expression was not detected in human and mouse placentas or choriocarcinoma cells. CRP may play a role in the pathological and physiological states of pregnancy.
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