期刊
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY
卷 71, 期 5, 页码 458-466出版社
WILEY
DOI: 10.1111/aji.12217
关键词
IVIg therapy; natural killer cells; observational study; recurrent reproductive failure
资金
- Spanish Ministry of Health, Social Policy and Equality [EC10-026]
- Fundacion Tambre
ProblemRecurrent reproductive failure (RRF) has been associated with expansion of circulating NK cells, key cells for maternal tolerance, decidual vasculogenesis and embryo growth. This study reports our experience in intravenous immunoglobulin (IVIg) therapy of a large cohort of women with RRF with expanded circulating NK and/or NKT-like cells (blood NKT cells are a heterogeneous subset of T cells that share properties of both T cells and NK cells). Method of studyObservational study of RRF women with NK or NKT-like expansion (>12% or 10% cutoff levels of total lymphocytes, respectively), treated with IVIg for the next gestation. ResultsBy multivariant logistic regression analysis after adjusting for age, NK cells subsets and other therapies, IVIg significantly improved the live birth rate to 96.3% in women with recurrent miscarriage (RM) compared with 30.6% in case not receiving IVIg (P<0.0001). In women with recurrent implantation failure (RIF), in comparison with women not receiving IVIg, treatment increased the pregnancy rate from 26.2 to 93.8% (P0.0001) and the live birth rate from 17.9 to 80.0% in RIF (P0.0001). ConclusionsImmunomodulation with IVIg in our selected group of RRF patients with immunologic alterations enhanced clinical pregnancy and live birth rates. Our results may facilitate the design of future clinical trials of IVIg in this pathology.
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