Evidence map›Paper›PMID 31368965›Full record

ArticleOptics letters2019

Simultaneous photoacoustic imaging of intravascular and tissue oxygenation.

Maomao Chen, Hailey J Knox, Yuqi Tang, Wei Liu, Liming Nie, Jefferson Chan, Junjie Yao

Abstract read
In one paragraph

Article in Optics letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

32 citing papers in PubMed, 62 citations in OpenAlex.

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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

7 authors at 3 institutions in 2 countries.

Maomao Chen
Hailey J Knox
Yuqi Tang
Wei Liu
Liming Nie
Jefferson Chan
Junjie Yao
Duke University · USUniversity of Illinois Urbana-Champaign · USXiamen University · CN

Funding

High-resolution High-speed Photoacoustic and Ultrasound Imaging of SmallVessel Functions in Ischemic StrokeR01NS111039 · NINDS · DUKE UNIVERSITY · PI YAO, JUNJIE · 2019 to 2023
$2.7M
High-Throughput Volumetric Photoacoustic Imaging of Living Vascularized OrganoidsR01EB028143 · NIBIB · DUKE UNIVERSITY · PI YAO, JUNJIE · 2019 to 2022
$2.0M
Tissue microenvironment (TIMe) training programT32EB019944 · NIBIB · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI BHARGAVA, ROHIT, GASKINS, REX · 2016 to 2025
$1.9M
Photoacoustic-imaging-guided intravascular sonothrombolysisR21EB027304 · NIBIB · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI JIANG, XIAONING, YAO, JUNJIE · 2019 to 2020
$411k
NIBIB NIH HHS R01 EB028143NIBIB NIH HHS R21 EB027304NIBIB NIH HHS T32 EB019944NINDS NIH HHS R01 NS111039
6 · The paper itself

Abstract

Hypoxia, a low tissue oxygenation condition caused by insufficient oxygen supply, leads to potentially irreversible tissue damage, such as brain infarction during stroke. Intravascular oxygenation has long been used by photoacoustic imaging, among other imaging modalities, to study hypoxia. However, intravascular oxygenation describes only the oxygen supply via microcirculation, which does not directly reflect the amount of free oxygen available for metabolism in the interstitial fluid. Therefore, to fully understand hypoxia, it is highly desirable to monitor blood oxygenation as well as tissue oxygenation during the same biological process. In this work, by combining high-resolution photoacoustic microscopy (PAM) and a novel bioreducible N-oxide-based hypoxia-sensitive probe HyP-650, we have demonstrated simultaneous imaging of intravascular oxygenation and tissue hypoxia. We have established detailed chemical, optical, and photoacoustic properties of HyP-650 for hypoxic activation in vitro and in living cells. We have also performed PAM on hindlimb ischemia models and tumor-bearing mice to study the correlation between intravascular oxygenation and tissue oxygenation at various hypoxic levels. We expect that Hyp-650 enhanced photoacoustic imaging will find a variety of applications in brain and cancer research.

Indexed as

AnimalsBlood VesselsHindlimbIschemiaMiceMicroscopyOxygenPhotoacoustic TechniquesTumor HypoxiaOxygen

Identifiers

PMID31368965
PMCPMC6697144
OpenAlexW2963124594

What OpenQuestion holds

Textmetadata
LicenceTDM
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.