Evidence map›Paper›PMID 32964585›Full record

ArticleJournal of magnetic resonance imaging : JMRI2020

Quantitative Magnetization Transfer Detects Renal Fibrosis in Murine Kidneys With Renal Artery Stenosis.

Kai Jiang, Yiyuan Fang, Christopher M Ferguson, Hui Tang, Prasanna K Mishra, Slobodan I Macura, Lilach O Lerman

Open access · greenAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.9field-weighted citation impact, top 22% 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

3 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
  3. 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

7 authors at 1 institution in 1 country.

Kai JiangDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.
Yiyuan FangDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.
Christopher M FergusonDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.
Hui TangDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.
Prasanna K MishraBiochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA.
Slobodan I MacuraBiochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA.
Lilach O LermanDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.ORCID https://orcid.org/0000-0002-3271-3887
Mayo Clinic · US

Funding

Obesity-induced mesenchymal stem cell senescenceR01DK120292 · NIDDK · MAYO CLINIC ROCHESTER · PI LERMAN, LILACH O · 2019 to 2022
$2.6M
Quantitative magnetization transfer MRI for evaluation of renal fibrosisR01DK122734 · NIDDK · MAYO CLINIC ROCHESTER · PI LERMAN, LILACH O · 2020 to 2023
$2.2M
Noninvasive assessment of renal fibrosis using magnetization transfer MRIU01DK104273 · NIDDK · MAYO CLINIC ROCHESTER · PI LERMAN, LILACH O · 2014 to 2018
$1.8M
Mayo Clinic Summer Undergraduate Research in Nephrology & UrologyR25DK101405 · NIDDK · MAYO CLINIC ROCHESTER · PI MICHAEL F. ROMERO · 2014 to 2026
$1.6M
Noninvasive Evaluation of Renal Allograft Fibrosis by MRIR21AG062104 · NIA · MAYO CLINIC ROCHESTER · PI LERMAN, LILACH O · 2020 to 2021
$414k
NIA NIH HHS AG062104NIA NIH HHS R21 AG062104NIDDK NIH HHS DK104273NIDDK NIH HHS DK120292NIDDK NIH HHS DK122734NIDDK NIH HHS R01 DK120292NIDDK NIH HHS R01 DK122734NIDDK NIH HHS R25 DK101405NIDDK NIH HHS U01 DK104273
6 · The paper itself

Abstract

backgroundRenal fibrosis is a common pathway in tubulointerstitial injury and a major determinant of renal insufficiency. Collagen deposition, a key feature of renal fibrosis, may serve as an imaging biomarker to differentiate scarred from healthy kidneys. PURPOSE: To test the feasibility of using quantitative magnetization transfer (qMT), which assesses tissue macromolecule content, to measure renal fibrosis. STUDY TYPE: Prospective. ANIMAL MODEL: Fifteen 129S1 mice were studied 4 weeks after either sham (n = 7) or unilateral renal artery stenosis (RAS, n = 8) surgeries. FIELD STRENGTH/SEQUENCE: Magnetization transfer (MT)-weighted images were acquired at 16.4T using an MT-prepared fast-low-angle-shot sequence. Renal B ASSESSMENT: A two-pool model was used to estimate the bound water fraction (f) and other tissue imaging biomarkers. Masson's trichrome staining was subsequently performed ex vivo to evaluate renal fibrosis. STATISTICAL TESTS: Comparisons of renal parameters between sham and RAS were performed using independent samples t-tests. Pearson's correlation was conducted to investigate the relationship between renal fibrosis by histology and the qMT-derived bound pool fraction f.

resultsThe two-pool model provided accurate fittings of measured MT signal. The qMT-derived f of RAS kidneys was significantly increased compared to sham in all kidney zones (renal cortex [CO], 7.6 ± 2.4% vs. 4.6 ± 0.6%; outer medulla [OM], 8.2 ± 4.2% vs. 4.2 ± 0.9%; inner medulla [IM] + P, 5.8 ± 1.6% vs. 2.9 ± 0.6%, all P < 0.05). Measured f correlated well with histological fibrosis in all kidney zones (CO, Pearson's correlation coefficient r = 0.95; OM, r = 0.93; IM + P, r = 0.94, all P < 0.05). DATA

conclusionThe bound pool fraction f can be quantified using qMT at 16.4T in murine kidneys, increases significantly in fibrotic RAS kidneys, and correlates well with fibrosis by histology. Therefore, qMT may constitute a valuable tool for measuring renal fibrosis in RAS. LEVEL OF EVIDENCE: 1 TECHNICAL EFFICACY STAGE: 3.

Indexed as

histologyquantitative magnetization transferrenal artery stenosisrenal fibrosis

Identifiers

PMID32964585
PMCPMC7965778
OpenAlexW3087719759

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.