To describe the spatial-temporal localization and gene expression of key components of the renin-angiotensin system in the endometrium across the menstrual cycle.
Key Findings:
Prorenin mRNA expression and protein levels were low across endometrial tissue, influenced by cell type.
ATP6AP2 mRNA expression was higher in the proliferative phase compared to the late-secretory phase.
Angiotensinogen mRNA expression was also higher in the proliferative phase than in the late-secretory phase.
Angiotensinogen protein labeling was highest in the stroma, with variations based on cell type and phase.
Interpretation:
The findings suggest that components of the renin-angiotensin system may regulate stromal regeneration and proliferation during the proliferative and mid-secretory phases of the endometrial cycle.
Limitations:
Study limited to a small sample size (n=10 per phase).
Focus on specific phases of the endometrial cycle may not capture full dynamics.
Conclusion:
AGT and ATP6AP2 mRNA levels are higher in the proliferative phase, indicating a potential regulatory role of the renin-angiotensin system in endometrial repair processes.
The nurse practitioner profession claims the No. 1 spot across three categories in the U.S. News & World Report 2026 Best Jobs rankings for the third consecutive year.
