Evidence map›Paper›PMID 15906952›Full record

ArticleThe Korean journal of internal medicine2005

Effect of IgA aggregates on transforming growth factor-beta1 production in human mesangial cells and the intraglomerular expression of transforming growth factor-beta1 in patients with IgA nephropathy.

Sang-Youb Han, Chun-Gyoo Ihm, Dae-Ryong Cha, Young-Sun Kang, Kum-Hyun Han, Hyoung-Kyu Kim, Jee-Young Han

Open access · goldAbstract read
In one paragraph

Article in The Korean journal of internal medicine, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 47% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
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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

7 authors at 3 institutions in 1 country.

Sang-Youb HanDepartment of Internal Medicine, Inje University College of Medicine, Go-yang, Korea.
Chun-Gyoo Ihm
Dae-Ryong Cha
Young-Sun Kang
Kum-Hyun Han
Hyoung-Kyu Kim
Jee-Young Han
Korea University · KRInha University · KRKyung Hee University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTransforming growth factor-beta (TGF-beta) stimulates renal fibrosis in various renal diseases including IgA nephropathy.

methodsWe examined whether immunoglobulin A (IgA) stimulated TGF-beta1 synthesis in human mesangial cells (MCs), and whether this effect was mediated through the protein kinase C (PKC) pathway. We measured the intraglomerular TGF-beta1 mRNA expression by using competitive RT-PCR, and this was compared with various parameters in IgA nephropathy patients.

resultsThe IgA aggregate increased the TGF-beta1 mRNA expression in MCs, while this expression was not affected by the culture media or IgG aggregate. Phorbol 12-myristate 13-acetate and calphostin C did not influence the TGF-beta1 mRNA expression that was increased by the IgA aggregate. Intraglomerular TGF-beta1 mRNA expression was significantly correlated with creatinine clearance (r = -0.764, p = 0.027), daily proteinuria (r = 0.781, p = 0.022), serum creatinine (r = 0.884, p = 0.004), and tubulointerstitial changes (r = 0.809, p = 0.015). Glomerular TGF-beta1 mRNA expression was associated with an increased tendency for glomerulosclerosis (r = 0.646, p = 0.084). After 4 years, patients with a high expression of intraglomerular TGF-beta1 mRNA showed a tendency for an decrease of their renal function.

conclusionThe IgA aggregate increased TGF-beta1 mRNA expression in MCs, and this was independent of the PKC pathway. The evaluation of intraglomerular TGF-beta1 mRNA expression could be useful in predicting the progression of IgA nephropathy.

Indexed as

Cells, CulturedFemaleGlomerular MesangiumGlomerulonephritis, IGAHumansImmunoglobulin AMaleRNA, MessengerTransforming Growth Factor betaTransforming Growth Factor beta1Immunoglobulin ARNA, MessengerTGFB1 protein, humanTransforming Growth Factor betaTransforming Growth Factor beta1

Identifiers

PMID15906952
PMCPMC3891411
OpenAlexW2069228791

What OpenQuestion holds

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LicenceCC BY-NC
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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.