Evidence map›Paper›PMID 36148557›Full record

ArticleAmerican journal of reproductive immunology (New York, N.Y. : 1989)2022

Individual dynamics of uterine natural killer cells in natural and stimulated cycles monitored using a new endometrial dating method.

Joachim Alfer, Amir Fattahi, Nathalie Bleisinger, Sophia Antoniadis, Jürgen Krieg, Ralf Dittrich, Matthias W Beckmann, Arndt Hartmann, Roxana M Popovici, Kelton Tremellen

Abstract read
In one paragraph

Article in American journal of reproductive immunology (New York, N.Y. : 1989), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Joachim AlferDepartment of Pathology, Erlangen University Hospital, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany.
Amir FattahiDepartment of Reproductive Biology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
Nathalie BleisingerDepartment of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich-Alexander University of Erlangen-Nürnberg, Germany.
Sophia AntoniadisDepartment of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich-Alexander University of Erlangen-Nürnberg, Germany.
Jürgen KriegKinderwunschzentrum Amberg, Amberg, Germany.
Ralf DittrichDepartment of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich-Alexander University of Erlangen-Nürnberg, Germany.
Matthias W BeckmannDepartment of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich-Alexander University of Erlangen-Nürnberg, Germany.
Arndt HartmannDepartment of Pathology, Erlangen University Hospital, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany.
Roxana M PopoviciKinderwunsch im Zentrum Kїz, Munich, Germany.
Kelton TremellenDepartment of Obstetrics, Gynaecology and Reproductive Medicine, Flinders University, South Australia, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

problemIt is important to evaluate the dynamics of uterine natural killer (uNK) cells in hormone replacement therapy (HRT) cycles, given their potential role in implantation and the common usage of HRT cycles with in vitro fertilization (IVF). METHOD OF STUDY: A total of 132 subfertile patients were evaluated during the secretory phase of either natural ovulation (OV) or HRT cycles, with two biopsies taken on approximately days 5 and 10 after ovulation/progesterone administration in a single menstrual cycle. Immunohistochemical Personal Endometrial Maturation Analysis (PEMA) was used to better quantify secretory-phase endometrial development, in combination with subsequent evaluation of uNK cell density.

resultsuNK cell density increased rapidly from the early to mid-secretory phase, with mean uNK densities of 113 and 117 per mm

conclusionSubfertile women showed variable endometrial development in PEMA assessment, with uNK cell density correlating with the dating results. Overall, comparable levels of uNK cell density were observed in OV and HRT cycles. Importantly, uNK cell density depends on the histological maturation stage, with similar low coefficients of determination. This observation suggests that aberrant uNK cell results more likely reflect displaced endometrial maturation, rather than an intrinsic anomaly in uNK cell trafficking.

Indexed as

Embryo ImplantationEndometriumFemaleFertilization in VitroHumansKiller Cells, NaturalUterusCD56datingendometriumreproductionsubfertileuNK cells

Identifiers

PMID36148557
PMCPMC9787954

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