Evidence map›Paper›PMID 25155961›Full record

ArticleScientific reports2014

Novel 3D microscopic analysis of human placental villous trees reveals unexpected significance of branching angles.

Eva Haeussner, Antonia Buehlmeyer, Christoph Schmitz, Franz Edler von Koch, Hans-Georg Frank

Abstract read
In one paragraph

Article in Scientific reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

5 authors.

Eva HaeussnerLudwig-Maximilians-University, Anatomische Anstalt, Pettenkoferstrasse 11, 80336 Munich, Germany.
Antonia BuehlmeyerLudwig-Maximilians-University, Anatomische Anstalt, Pettenkoferstrasse 11, 80336 Munich, Germany.
Christoph SchmitzLudwig-Maximilians-University, Anatomische Anstalt, Pettenkoferstrasse 11, 80336 Munich, Germany.
Franz Edler von Koch1] Clinic for Obstetrics and Gynaecology Dritter Orden, Menzinger Str. 44, 80638 Munich, Germany [2].
Hans-Georg Frank1] Ludwig-Maximilians-University, Anatomische Anstalt, Pettenkoferstrasse 11, 80336 Munich, Germany [2].

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The villous trees of human placentas delineate the fetomaternal border and are complex three-dimensional (3D) structures. Thus far, they have primarily been analyzed as thin, two-dimensional (2D) histological sections. However, 2D sections cannot provide access to key aspects such as branching nodes and branch order. Using samples taken from 50 normal human placentas at birth, in the present study we show that analysis procedures for 3D reconstruction of neuronal dendritic trees can also be used for analyzing trees of human placentas. Nodes and their branches (e.g., branching hierarchy, branching angles, diameters, and lengths of branches) can be efficiently measured in whole-mount preparations of isolated villous trees using high-end light microscopy. Such data differ qualitatively from the data obtainable from histological sections and go substantially beyond the morphological horizon of such histological data. Unexpectedly, branching angles of terminal branches of villous trees varied inversely with the fetoplacental weight ratio, a widely used clinical parameter. Since branching angles have never before been determined in the human placenta, this result requires further detailed studies in order to fully understand its impact.

Indexed as

Chorionic VilliFemaleHumansImaging, Three-DimensionalPregnancy

Identifiers

PMID25155961
PMCPMC4143784

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.