期刊
FERTILITY AND STERILITY
卷 84, 期 4, 页码 980-984出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.fertnstert.2005.05.012
关键词
recurrent miscarriage; uNK cells; endometrium
Objective: To test the hypothesis that high numbers of uterine natural killer (uNK) cells in the endometrium of women with recurrent miscarriage (RM) could be reduced with prednisolone. Design: A before and after study. Setting: A tertiary referral teaching hospital. Patient(s): Eighty-five women with idiopathic RM recruited from all over the UK and 18 women attending for sterilization (controls). Intervention(s): An endometrial sample was taken on day 21 +/- 2 of the menstrual cycle. Immunohistochemistry was used to identify uNK (CD56+, CD16-, CD3-). Twenty-nine women with RM and > 5% uNK agreed to take 20 mg oral prednisolone daily from day 1 to 21 of their menstrual cycle, when a second biopsy was obtained and analyzed. Main Outcome Measure(s): The percentage of stromal cells that were uNK. The normal range was defined using control samples as < 5%. Result(s): Women with RM had significantly more uNK than the controls (P=.008). Prednisolone treatment significantly reduced the number of CD56 cells in the endometrium, from a median of 14% (before) to 9% (after) (P=.0004). Conclusion(s): We have demonstrated that high numbers of uNK in preimplantation endometrium of women with recurrent miscarriage can be reduced with administration of prednisolone. (Fertil Sterile (R) 2005;84:980-4. (c) 2005 by American Society for Reproductive Medicine.)
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