Related Experiment Video
Updated: Jul 14, 2026

Tracking Single Proteins in Lipid Bilayers Using Fluorescence Microscopy
Published on: December 12, 2025
[Expression of aquaporins 1, 3, 8, 9 mRNA in human fetal membranes]
Rui Zhang1, Dong-Zi Yang, Ying-Lin Liu
1Department of Obstetrics and Gynecology, Second Affiliated Hospital of Sun Yat-sen University, Guangzhou 510120, China.
Objective:
To investigate the expression of aquaporin (AQP)-1, 3, 8, 9 in human fetal membrane and their role in the human amniotic fluid circulation.
Methods:
RT-PCR was employed for detection of the expressions of AQP-1, 3, 8, 9 mRNA in human amnion and chorion from 20 women with normal term pregnancy.
Results:
AQP-1, 3, 8, 9 mRNA expression was detected in both human amnion and chorion, and no significant difference was found in their expression levels or between the amnion and chorion (P>0.05).
Conclusion:
AQP-1, 3, 8, 9 can be associated with intramembranous transport and volume regulation of amniotic fluid.
Insights
Aquaporin (AQP)-1, 3, 8, and 9 are expressed in the human fetal membrane. These aquaporins may play a role in regulating amniotic fluid circulation and volume.
Area of Science:
- Physiology
- Molecular Biology
Context:
- The human fetal membrane is crucial for maintaining pregnancy.
- Amniotic fluid circulation is vital for fetal development and well-being.
Purpose:
- To investigate the expression of aquaporin (AQP)-1, 3, 8, and 9 in the human fetal membrane.
- To explore the role of these aquaporins in human amniotic fluid circulation.
Summary:
- RT-PCR detected mRNA expression of AQP-1, 3, 8, and 9 in both the amnion and chorion of human fetal membranes from 20 women.
- No significant differences in expression levels were observed between the amnion and chorion.
Impact:
- The findings suggest that AQP-1, 3, 8, and 9 are associated with intramembranous transport.
- These aquaporins may be involved in the volume regulation of amniotic fluid.

