Evidence map›Paper›PMID 33620604›Full record

ArticleClinical and experimental nephrology2021

Mesangial C3 deposition and serum C3 levels predict renal outcome in IgA nephropathy.

Dan Wu, Xueqian Li, Xingfeng Yao, Nan Zhang, Lei Lei, Hejia Zhang, Mengmeng Tang, Jie Ni, Chen Ling, Zhi Chen and 2 more

Abstract read
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In one paragraph

Article in Clinical and experimental nephrology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. New prognostic markers for IgA nephropathy in children.Pediatric nephrology (Berlin, Germany) · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. IgA nephropathy.Nature reviews. Disease primers · 2023
    Review
  12. Review
  13. Article
  14. 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

12 authors.

Dan WuDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Xueqian LiDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Xingfeng YaoDepartment of Pathology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Nan ZhangDepartment of Pathology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Lei LeiDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Hejia ZhangDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Mengmeng TangDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Jie NiDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Chen LingDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Zhi ChenDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Xiangmei ChenDepartment of Nephrology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, National Clinical Research Center for Kidney Diseases, 28th Fuxing Road, Beijing, 100853, China.
Xiaorong LiuDepartment of Nephrology, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China. lxrbch@sina.com.ORCID http://orcid.org/0000-0001-9724-6493

Funding

Capital Health Research and Development of Special 2016-2-2094Project of Beijing Science and Technology Commission D181100000118006Research on the Application of Capital Clinical Characteristics Program of Beijing Municipal Science and Technology Commission Z161100000516106
6 · The paper itself

Abstract

backgroundComplement activation plays an important role in the pathogenesis of IgA nephropathy (IgAN). We aimed to evaluate the relationship between mesangial C3 deposition and histologic lesions and to investigate the role of mesangial C3 deposition and serum C3 reduction in predicting renal outcome in IgAN children.

methodsWe performed a retrospective cohort study in children with biopsy-proven IgAN. Mesangial C3 deposition (< 2+ vs. ≥ 2+) was detected by the immunofluorescence. Histopathologic kidney grades were determined by the Oxford classification. A decreased serum C3 concentration (hypoC3) was defined when C3 < 90 mg/dl. The endpoint was composite kidney outcome with either a 30% decline in glomerular filtration rates from baseline or kidney failure during the follow-up period.

resultsA total of 98 children were analyzed. Mesangial hypercellularity (M) was an independent factor associated with mesangial C3 deposition (HR 3.267; 95% CI 1.028-10.389; P = 0.045). After a median follow-up period of 25 months (interquartile range 18-36 months), 6 (6.1%) children reached the endpoint. Compared with other children, a significantly higher proportion of children with composite kidney outcomes had mesangial C3 deposition ≥ 2+ and hypoC3 (3.4% versus 27.3%, P = 0.002). After adjustment for clinicopathologic risk factors, mesangial C3 deposition ≥ 2+ and hypoC3 were associated with renal outcome (HR 9.772; 95% CI 1.264-75.518; P = 0.029).

conclusionMesangial C3 deposition was associated with M in IgAN. Mesangial C3 deposition and hypoC3 were risk factors for renal outcome in children with IgAN.

Indexed as

AdolescentAge FactorsBiomarkersBiopsyChildChild, PreschoolComplement C3Disease ProgressionFemaleFluorescent Antibody TechniqueGlomerular Filtration RateGlomerulonephritis, IGAHumansInfantMaleMesangial CellsBiomarkersC3 protein, humanComplement C3ChildrenComplementIgA nephropathyOxford classificationPredictive marker

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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.