Evidence map›Paper›PMID 27369932›Full record

ArticlePhysiological reports2016

Vitamin D deficiency contributes to vascular damage in sustained ischemic acute kidney injury.

Ana C de Bragança, Rildo A Volpini, Purvi Mehrotra, Lúcia Andrade, David P Basile

Open access · goldAbstract read
In one paragraph

Article in Physiological reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 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

5 authors at 2 institutions in 2 countries.

Ana C de BragançaDivision of Nephrology, Laboratory of Basic Science LIM-12, University of São Paulo School of Medicine, São Paulo, Brazil ana.braganca@hc.fm.usp.br.
Rildo A VolpiniDivision of Nephrology, Laboratory of Basic Science LIM-12, University of São Paulo School of Medicine, São Paulo, Brazil.
Purvi MehrotraDepartment of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.
Lúcia AndradeDivision of Nephrology, Laboratory of Basic Science LIM-12, University of São Paulo School of Medicine, São Paulo, Brazil.
David P BasileDepartment of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.
Universidade de São Paulo · BRIndiana University School of Medicine

Funding

Long-term effects of acute renal failureR01DK063114 · NIDDK · MEDICAL COLLEGE OF WISCONSIN · PI David P. Basile · 2003 to 2026
$8.1M
NIDDK NIH HHS NIH RO1 DK 063114NIDDK NIH HHS R01 DK063114
6 · The paper itself

Abstract

Reductions in renal microvasculature density and increased lymphocyte activity may play critical roles in the progression of chronic kidney disease (CKD) following acute kidney injury (AKI) induced by ischemia/reperfusion injury (IRI). Vitamin D deficiency is associated with tubulointerstitial damage and fibrosis progression following IRI-AKI We evaluated the effect of vitamin D deficiency in sustained IRI-AKI, hypothesizing that such deficiency contributes to the early reduction in renal capillary density or alters the lymphocyte response to IRI Wistar rats were fed vitamin D-free or standard diets for 35 days. On day 28, rats were randomized into four groups: control, vitamin D deficient (VDD), bilateral IRI, and VDD+IRI Indices of renal injury and recovery were evaluated for up to 7 days following the surgical procedures. VDD rats showed reduced capillary density (by cablin staining), even in the absence of renal I/R. In comparison with VDD and IRI rats, VDD+IRI rats manifested a significant exacerbation of capillary rarefaction as well as higher urinary volume, kidney weight/body weight ratio, tissue injury scores, fibroblast-specific protein-1, and alpha-smooth muscle actin. VDD+IRI rats also had higher numbers of infiltrating activated CD4(+) and CD8(+) cells staining for interferon gamma and interleukin-17, with a significant elevation in the Th17/T-regulatory cell ratio. These data suggest that vitamin D deficiency impairs renal repair responses to I/R injury, exacerbates changes in renal capillary density, as well as promoting fibrosis and inflammation, which may contribute to the transition from AKI to CKD.

Indexed as

ActinsAcute Kidney InjuryAnimalsCalcium-Binding ProteinsCapillariesCD8-Positive T-LymphocytesDisease Models, AnimalDisease ProgressionFibrosisInterferon-gammaInterleukin-17KidneyMaleNephritisRats, WistarRenal Insufficiency, ChronicActa2 protein, ratActinsCalcium-Binding ProteinsFSP1 protein, ratInterferon-gammaInterleukin-17S100a4 protein, ratS100 Calcium-Binding Protein A4S100 ProteinsAcute kidney injuryCD4+ lymphocytesCD8+ lymphocytescytokinesischemia reperfusion injuryrenal microvascular densityT‐reg cellsvitamin D deficiency

Identifiers

PMID27369932
PMCPMC4945834
OpenAlexW2466744304

What OpenQuestion holds

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LicenceCC BY
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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.