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← Human Body & HealthWhich immune response affects blastocyst implantation in endometrium?
A)Controlled local inflammatory reaction✓
B)Systemic mast cell degranulation
C)Suppression of uterine NK cells
D)Increased endometrial perforin secretion
💡 Explanation
Successful implantation requires controlled local inflammation, because cytokine modulation regulates trophoblast invasion. If inflammation doesn't occur, implantation of the blastocyst cannot proceed; therefore a lack of localized inflammatory signal impacts this key part of pregnancy, rather than systemic cell activation.
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