Evidence map›Paper›PMID 24619192›Full record

ArticleUrolithiasis2014

Osteopontin knockdown in the kidneys of hyperoxaluric rats leads to reduction in renal calcium oxalate crystal deposition.

Hidenori Tsuji, Nobutaka Shimizu, Masahiro Nozawa, Tohru Umekawa, Kazuhiro Yoshimura, Marco A De Velasco, Hirotsugu Uemura, Saeed R Khan

Abstract read
In one paragraph

Article in Urolithiasis, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
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  12. Nephroprotective Effect ofBiomolecules · 2020
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  15. Review
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  17. Association betweenBiomedical reports · 2016
    Article
  18. Review
  19. 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 2 institutions in 2 countries.

Hidenori TsujiDepartment of Urology, Kinki University Faculty of Medicine, 377-2 Ohnohigashi, Osakasayama, Osaka, 589-8511, Japan, tsujihidenori@hotmail.com.
Nobutaka Shimizu
Masahiro Nozawa
Tohru Umekawa
Kazuhiro Yoshimura
Marco A De Velasco
Hirotsugu Uemura
Saeed R Khan
Kindai University · JPUniversity of Florida · US

Funding

An In Vitro Model for Studying the Role of Acidic Proteins in Randalls Plaque andR01DK092311 · NIDDK · UNIVERSITY OF FLORIDA · PI GOWER, LAURIE B, KHAN, SAEED R. · 2012 to 2015
$1.5M
Crystal Associated Renal Inflammation and Treatment OptionsR01DK078602 · NIDDK · UNIVERSITY OF FLORIDA · PI KHAN, SAEED R. · 2009 to 2012
$1.3M
NIDDK NIH HHS R01 DK078602NIDDK NIH HHS R01-DK078602NIDDK NIH HHS R01 DK092311
6 · The paper itself

Abstract

Osteopontin (OPN) expression is increased in kidneys of rats with ethylene glycol (EG) induced hyperoxaluria and calcium oxalate (CaOx) nephrolithiasis. The aim of this study is to clarify the effect of OPN knockdown by in vivo transfection of OPN siRNA on deposition of CaOx crystals in the kidneys. Hyperoxaluria was induced in 6-week-old male Sprague-Dawley rats by administering 1.5% EG in drinking water for 2 weeks. Four groups of six rats each were studied: Group A, untreated animals (tap water); Group B, administering 1.5% EG; Group C, 1.5% EG with in vivo transfection of OPN siRNA; Group D, 1.5% EG with in vivo transfection of negative control siRNA. OPN siRNA transfections were performed on day 1 and 8 by renal sub-capsular injection. Rats were killed at day 15 and kidneys were removed. Extent of crystal deposition was determined by measuring renal calcium concentrations and counting renal crystal deposits. OPN siRNA transfection resulted in significant reduction in expression of OPN mRNA as well as protein in group C compared to group B. Reduction in OPN expression was associated with significant decrease in crystal deposition in group C compared to group B. Specific suppression of OPN mRNA expression in kidneys of hyperoxaluric rats leads to a decrease in OPN production and simultaneously inhibits renal crystal deposition.

Indexed as

AnimalsCalcium OxalateCell LineCrystallizationDisease Models, AnimalEpithelial CellsGenetic TherapyHyperoxaluriaKidneyMaleNephrolithiasisOsteopontinRats, Sprague-DawleyRNA, MessengerRNA, Small InterferingCalcium OxalateOsteopontinRNA, MessengerRNA, Small InterferingSpp1 protein, rat

Identifiers

PMID24619192
PMCPMC4979578
OpenAlexW2049422869

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.