ArticleReproductive biology and endocrinology : RB&E2019
The impact of previous live births on peripheral and uterine natural killer cells in patients with recurrent miscarriage.
Article in Reproductive biology and endocrinology : RB&E, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Number and function of uterine natural killer cells in recurrent miscarriage and implantation failure: a systematic review and meta-analysis.Human reproduction update · 2022Pooled it
- The Molecular Mechanisms of HLA-G Regulatory Function on Immune Cells during Early Pregnancy.Biomolecules · 2023Review
- Immune Cell Functionality during Decidualization and Potential Clinical Application.Life (Basel, Switzerland) · 2023Review
- Review
- Recurrent Spontaneous Miscarriage: a Comparison of International Guidelines.Geburtshilfe und Frauenheilkunde · 2021Article
- Different Background: Natural Killer Cell Profiles in Secondary versus Primary Recurrent Pregnancy Loss.Journal of clinical medicine · 2021Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPeripheral and uterine natural killer cells (pNK and uNK cells) are key players in the establishment and maintenance of pregnancy and are disturbed in patients with recurrent miscarriage (RM). Different immunologic risk factors have been proposed between patients with primary RM (pRM, no previous live birth) and secondary RM (sRM, ≥ 1 previous live birth). However, so far, the study populations mainly consisted of small subgroups. Therefore, we aimed to analyse pNK and uNK cells in a large, well defined study population within a prospective study.
methodsIn total, n = 575 RM patients (n = 393 pRM, n = 182 sRM) were screened according to a standard protocol for established risk factors as well as pNK and uNK cells. Peripheral blood levels of CD45
resultsPatients with pRM and ipRM showed significant higher absolute numbers and percentages of pNK cells compared to sRM and isRM patients (pRM/ipRM vs sRM/isRM, mean ± SD /μl: 239.1 ± 118.7/244.9 ± 112.9 vs 205.1 ± 107.9/206.0 ± 105.6, p = 0.004/ p = 0.009; mean ± SD %: 12.4 ± 5.5/12.8 ± 5.4 vs 11.1 ± 4.6/11.1 ± 4.3, p = 0.001; p = 0.002). Only patients with isRM showed significantly higher uNK levels compared to patients with ipRM (mean ± SD /mm
conclusionsThe demonstrated differences in pNK and uNK cells in RM patients depending on previous live birth might indicate differences in NK cell recruitment and potentially different underlying immune disorders between pRM and sRM. As there is an overlap in the distribution of the NK cell results, further studies with focus on NK cell function are needed in order to clearly identify RM patients with distinct immune abnormalities. The clinical relevance of our findings should be interpreted cautiously until specificity and sensitivity are further evaluated.
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