PREIMPLANTATION FACTOR (PIF) PREDICTS SUBSEQUENT PREGNANCY LOSS

被引:19
作者
COULAM, CB [1 ]
ROUSSEV, RG [1 ]
THOMASON, EF [1 ]
BARNEA, ER [1 ]
机构
[1] CAMCARE HLTH CORP,OBSTET & GYNECOL SERV,CAMDEN,NJ
来源
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY | 1995年 / 34卷 / 02期
关键词
PREIMPLANTATION FACTOR (PIF); PRECLINICAL PREGNANCY LOSS; SPONTANEOUS ABORTION;
D O I
10.1111/j.1600-0897.1995.tb00923.x
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
PROBLEM: To evaluate the ability of preimplantation factor (PIF) measured in the lymphocyte/platelet binding assay (LPBA) to predict subsequent spontaneous abortion. METHOD: Serum from 57 women experiencing first trimester pregnancy losses were stud led using the LPBA (46 women conceived after in vitro fertilization and embryo transfer for treatment of infertility and 11 with a history of unexplained recurrent spontaneous abortion conceived spontaneously). The assay employs a combination of heat inactivated sera with donor O+ lymphocytes and platelets, complement and an antibody against CD2, Chromosome analysis was performed on 32 of the abortuses. Results of PIF assay were compared between karyotypically normal and abnormal abortuses. RESULTS: PIF assay was negative in all 57 women at the time of abortion. Among 12 karyotypically normal abortuses only 1 woman (8%) had an initial positive PIF 11 (92%) had negative PIF. Serial PIF assays were performed on 15 women. PIF assay became negative a minimum of two weeks prior to demonstration of intrauterine demise at a time when hCG concentrations remained elevated. A trend to subnormal was seen in women with normal when compared to those with abnormal abortus karyotype, but the numbers were too small to reach statistical significance (P = 0.09). CONCLUSION: Measurement of PIF throughout the first trimester of pregnancy predicts subsequent pregnancy loss.
引用
收藏
页码:88 / 92
页数:5
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