Evidence map›Paper›PMID 15854231›Full record

ArticleBMC nephrology2005

Time course study of oxidative and nitrosative stress and antioxidant enzymes in K2Cr2O7-induced nephrotoxicity.

José Pedraza-Chaverrí, Diana Barrera, Omar N Medina-Campos, Raymundo C Carvajal, Rogelio Hernández-Pando, Norma A Macías-Ruvalcaba, Perla D Maldonado, Marcos I Salcedo, Edilia Tapia, Liliana Saldívar and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC nephrology, 2005. 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
2.7field-weighted citation impact, top 11% 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, 82 citations in OpenAlex.

  1. Article
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  6. Inflammatory injury and mitophagy induced by Cr(VI) in chicken liver.Environmental science and pollution research international · 2020
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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 3 institutions in 1 country.

José Pedraza-ChaverríDepartamento de Biología, Universidad Nacional Autónoma de México, Facultad de Química, Ciudad Universitaria, 04510, México, D.F., Mexico. pedraza@servidor.unam.mx
Diana Barrera
Omar N Medina-Campos
Raymundo C Carvajal
Rogelio Hernández-Pando
Norma A Macías-Ruvalcaba
Perla D Maldonado
Marcos I Salcedo
Edilia Tapia
Liliana Saldívar
María E Castilla
María E Ibarra-Rubio
Universidad Nacional Autónoma de México · MXInstituto Nacional de Cardiología · MXInstituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPotassium dichromate (K2Cr2O7)-induced nephrotoxicity is associated with oxidative and nitrosative stress. In this study we investigated the relation between the time course of the oxidative and nitrosative stress with kidney damage and alterations in the following antioxidant enzymes: Cu, Zn superoxide dismutase (Cu, Zn-SOD), Mn-SOD, glutathione peroxidase (GPx), glutathione reductase (GR), and catalase (CAT).

methodsNephrotoxicity was induced in rats by a single injection of K2Cr2O7. Groups of animals were sacrificed on days 1,2,3,4,6,8,10, and 12. Nephrotoxicity was evaluated by histological studies and by measuring creatinine clearance, serum creatinine, blood urea nitrogen (BUN), and urinary excretion of N-acetyl-beta-D-glucosaminidase (NAG) and total protein. Oxidative and nitrosative stress were measured by immunohistochemical localization of protein carbonyls and 3-nitrotyrosine, respectively. Cu, Zn-SOD, Mn-SOD, and CAT were studied by immunohistochemical localization. The activity of total SOD, CAT, GPx, and GR was also measured as well as serum and kidney content of chromium and urinary excretion of NO2 -/NO3-. Data were compared by two-way analysis of variance followed by a post hoc test.

resultsSerum and kidney chromium content increased reaching the highest value on day 1. Nephrotoxicity was made evident by the decrease in creatinine clearance (days 1-4) and by the increase in serum creatinine (days 1-4), BUN (days 1-6), urinary excretion of NAG (days 1-4), and total protein (day 1-6) and by the structural damage to the proximal tubules (days 1-6). Oxidative and nitrosative stress were clearly evident on days 1-8. Urinary excretion of NO2-/NO3- decreased on days 2-6. Mn-SOD and Cu, Zn-SOD, estimated by immunohistochemistry, and total SOD activity remained unchanged. Activity of GPx decreased on days 3-12 and those of GR and CAT on days 2-10. Similar findings were observed by immunohistochemistry of CAT.

conclusionThese data show the association between oxidative and nitrosative stress with functional and structural renal damage induced by K2Cr2O7. Renal antioxidant enzymes were regulated differentially and were not closely associated with oxidative or nitrosative stress or with kidney damage. In addition, the decrease in the urinary excretion of NO2-/NO3- was associated with the renal nitrosative stress suggesting that nitric oxide was derived to the formation of reactive nitrogen species involved in protein nitration.

Indexed as

Oxidative StressPotassium DichromateAcetylglucosaminidaseAnimalsCatalaseChromiumCreatineGlutathione PeroxidaseImmunohistochemistryKidneyKidney DiseasesKidney Tubules, ProximalMaleNitratesNitritesNitrogen CompoundsAcetylglucosaminidaseCatalaseChromiumCreatineGlutathione PeroxidaseNitratesNitritesNitrogen CompoundsOxidoreductasesPotassium DichromateSuperoxide Dismutase

Identifiers

PMID15854231
PMCPMC1142323
OpenAlexW2167886875

What OpenQuestion holds

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LicenceCC BY
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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.