Evidence map›Paper›PMID 27858161›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2017

Two-photon optical microscopy imaging of endothelial keratoplasty grafts.

Marco Lombardo, Mohit Parekh, Sebastiano Serrao, Alessandro Ruzza, Stefano Ferrari, Giuseppe Lombardo

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2017. 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
0.3field-weighted citation impact, top 33% of its field
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, 7 citations in OpenAlex.

  1. Article
  2. Collagen Remodeling Plays a Pivotal Role in Endothelial Corneal Dystrophies.Investigative ophthalmology & visual science · 2020
    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

6 authors at 3 institutions in 1 country.

Marco LombardoFondazione G.B. Bietti IRCCS, Via Livenza 3, 00198, Rome, Italy. mlombardo@visioeng.it.ORCID http://orcid.org/0000-0001-8842-7102
Mohit ParekhFondazione Banca degli Occhi del Veneto Onlus, Via Paccagnella 11, 30174, Venezia Zelarino, Italy.
Sebastiano SerraoFondazione G.B. Bietti IRCCS, Via Livenza 3, 00198, Rome, Italy.
Alessandro RuzzaFondazione Banca degli Occhi del Veneto Onlus, Via Paccagnella 11, 30174, Venezia Zelarino, Italy.
Stefano FerrariFondazione Banca degli Occhi del Veneto Onlus, Via Paccagnella 11, 30174, Venezia Zelarino, Italy.
Giuseppe LombardoConsiglio Nazionale delle Ricerche, Istituto per i Processi Chimico-Fisici (CNR-IPCF), Viale Ferdinando Stagno d'Alcontres 37, 98158, Messina, Italy.
Veneto Eye Bank Foundation · ITFondazione G.B. Bietti · ITVision Engineering (Italy) · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the microstructure of endothelial keratoplasty grafts using two-photon optical microscopy.

methodsSix endothelial keratoplasty grafts obtained from human donor corneoscleral tissues and prepared by submerged hydrodissection technique were imaged by two-photon optical microscopy. In each graft, two liquid bubbles were created in order to investigate the presence of a conserved cleavage plane regardless of the volume of posterior stroma that remained attached to Descemet's membrane (DM); the first bubble (bubble A) was generated under DM and the second bubble (bubble B) injection was done in order to obtain a layer of deep stroma that kept the two bubbles separated. Six human donor corneoscleral tissues were used as controls. Second harmonic generation and two-photon emitted fluorescence signals were collected from each specimen.

resultsDissection of stroma occurred along the posterior collagen lamellae at variable distance from DM, which ranged between 3 and 16 μm in bubble A and between 23 and 41 μm in bubble B. The residual stroma included, anteriorly, bands of collagen lamellae, and thin bundles of stromal collagen fibrils, posteriorly, which were tightly intertwining with the underlying DM. There was no anatomically distinct plane of separation between these pre-Descemetic stromal collagen bundles and the overlying collagen lamellae with this hydrodissection technique.

conclusionsTwo-photon optical microscopy provided label-free high-resolution imaging of endothelial keratoplasty grafts, showing that the most posterior stroma changes organization at approximately 10 μm above the DM. The pre-Descemetic stromal collagen fibrils form an intertwined complex with DM, which cannot be separated using hydrodissection.

Indexed as

AgedCorneal StromaDescemet Stripping Endothelial KeratoplastyEndothelium, CornealHumansMicroscopyMiddle AgedTissue DonorsTomography, Optical CoherenceDescemet’s membraneEndothelial keratoplastyTwo-photon optical microscopy

Identifiers

PMID27858161
OpenAlexW2551689845

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.