Evidence map›Paper›PMID 34183707›Full record

Observational studyScientific reports2021

Assessing the impact of aging and blood pressure on dermal microvasculature by reactive hyperemia optical coherence tomography angiography.

Michael Wang-Evers, Malte J Casper, Joshua Glahn, Tuanlian Luo, Abigail E Doyle, Daniel Karasik, Anne C Kim, Weeranut Phothong, Neera R Nathan, Tammy Heesakker and 2 more

Open access · goldAbstract readComparative StudyObservational Study
In one paragraph

Observational study in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

16 citing papers in PubMed, 25 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

12 authors at 2 institutions in 1 country.

Michael Wang-EversCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. mevers@mgh.harvard.edu.
Malte J CasperCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Joshua GlahnCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Tuanlian LuoCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Abigail E DoyleCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Daniel KarasikCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Anne C KimCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Weeranut PhothongCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Neera R NathanCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Tammy HeesakkerCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Garuna KositratnaCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Dieter MansteinCutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. dmanstein@mgh.harvard.edu.
Harvard University · USMassachusetts General Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Visualization and quantification of the skin microvasculature are important for studying the health of the human microcirculation. We correlated structural and pathophysiological changes of the dermal capillary-level microvasculature with age and blood pressure by using the reactive hyperemia optical coherence tomography angiography (RH-OCT-A) technique and evaluated both conventional OCT-A and the RH-OCT-A method as non-invasive imaging alternatives to histopathology. This observational pilot study acquired OCT-A and RH-OCT-A images of the dermal microvasculature of 13 young and 12 old healthy Caucasian female subjects. Two skin biopsies were collected per subject for histological analysis. The dermal microvasculature in OCT-A, RH-OCT-A, and histological images were automatically quantified and significant indications of vessel rarefaction in both old subjects and subjects with high blood pressure were observed by RH-OCT-A and histopathology. We showed that an increase in dermal microvasculature perfusion in response to reactive hyperemia was significantly lower in high blood pressure subjects compared to normal blood pressure subjects (117% vs. 229%). These results demonstrate that RH-OCT-A imaging holds functional information of the microvasculature with respect to physiological factors such as age and blood pressure that may help to monitor early disease progression and assess overall vascular health. Additionally, our results suggest that RH-OCT-A images may serve as a non-invasive alternative to histopathology for vascular analysis.

Indexed as

AdolescentAdultAgedAged, 80 and overAgingAngiographyBlood PressureDisease ProgressionFemaleForearmHumansHyperemiaHypertensionMicrocirculationMicrovesselsPilot Projects

Identifiers

PMID34183707
PMCPMC8238964
OpenAlexW3175099580

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.