Evidence map›Paper›PMID 33663037›Full record

ArticleAcute and critical care2021

Feasibility study of incident dark-field video microscope for measuring microcirculatory variables in the mouse dorsal skinfold chamber model.

Christine Kang, Ah-Reum Cho, Hyeon Jeong Lee, Hyae Jin Kim, Eun-Jung Kim, Soeun Jeo, Jeong-Min Hong, Daehoan Moon

Open access · diamondAbstract read
In one paragraph

Article in Acute and critical care, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 52% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. 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

8 authors at 3 institutions in 1 country.

Christine KangDepartment of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea.
Ah-Reum ChoDepartment of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea.
Hyeon Jeong LeeDepartment of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea.
Hyae Jin KimDepartment of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea.
Eun-Jung KimDepartment of Dental Anesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Korea.
Soeun JeoDepartment of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea.
Jeong-Min HongDepartment of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea.
Daehoan MoonDepartment of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea.
Pusan National University Hospital · KRPusan National University · KRPusan National University Dental Hospital · KR

Funding

Ministry of Education, Science and TechnologyNational Research Foundation of Korea 2018R1C1B5040928
6 · The paper itself

Abstract

backgroundDespite the importance of microcirculation in organ function, monitoring microcirculation is not a routine practice. With developments in microscopic technology, incident dark field (IDF) microscopy (Cytocam) has allowed visualization of the microcirculation. Dorsal skinfold chamber (DSC) mouse model has been used to investigate microcirculation physiology. By employing Cytocam-IDF imaging with DSC model to assess microcirculatory alteration in lipopolysaccharide (LPS)-induced endotoxemia, we attempted to validate availability of Cytocam-IDF imaging of microcirculation.

methodsDSC was implanted in eight BALB/c mice for each group; control and sepsis. Both groups were given 72 hours to recover from surgery. The sepsis group had an additional 24-hour period of recovery post-LPS injection (4 mg/kg). Subsequently, a video of the microcirculation was recorded using Cytocam. Data on microcirculatory variables were obtained. Electron microscopy was implemented using lanthanum fixation to detect endothelial glycocalyx degradation.

resultsThe microcirculatory flow index was significantly lower (control, 2.8±0.3; sepsis, 2.1±0.8; P=0.033) and heterogeneity index was considerably higher (control, 0.10±0.15; sepsis, 0.53±0.48; P=0.044) in the sepsis group than in the control group. Electron microscopy revealed glycocalyx demolishment in the sepsis group.

conclusionsCytocam showed reliable ability for observing changes in the microcirculation under septic conditions in the DSC model. The convenience and good imaging quality and the automatic analysis software available for Cytocam-IDF imaging, along with the ability to perform real-time in vivo experiments in the DSC model, are expected to be helpful in future microcirculation investigations.

Indexed as

dorsal skinfold chamber modelglycocalyxincident dark fieldmicrocirculationsepsis

Identifiers

PMID33663037
PMCPMC7940105
OpenAlexW3133538192

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.