Evidence map›Paper›PMID 2788538›Full record

ArticleClinical and experimental immunology1989

Increased serum levels of IgA1-IgG immune complexes and anti-F(ab')2 antibodies in patients with primary IgA nephropathy.

F P Schena, A Pastore, N Ludovico, R A Sinico, S Benuzzi, V Montinaro

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In one paragraph

Article in Clinical and experimental immunology, 1989. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

15 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Biomarkers in IgA nephropathy: relationship to pathogenetic hits.Expert opinion on medical diagnostics · 2013
    Review
  6. Results in immunology · 2012
    Article
  7. Genetics and immunopathogenesis of IgA nephropathy.Clinical reviews in allergy & immunology · 2011
    Review
  8. Article
  9. Article
  10. Review
  11. Hypercomplementemia in adult patients with IgA nephropathy.Journal of clinical laboratory analysis · 2007
    Article
  12. Article
  13. Review
  14. Pathogenesis of idiopathic IgA nephropathy.Pediatric nephrology (Berlin, Germany) · 1993
    Review
  15. 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

6 authors at 1 institution in 1 country.

F P SchenaChair of Medical Therapy, University of Bari, Italy.
A Pastore
N Ludovico
R A Sinico
S Benuzzi
V Montinaro
University of Bari Aldo Moro · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A solid-phase ELISA was used to detect IgA1 immune complexes (IgA1 ICs) containing IgG and IgM in 38 serum samples from 30 patients with primary IgA nephropathy (IgAN) and 14 subjects with non-IgA chronic glomerulonephritis. A jackfruit lectin, jacalin, was used as the substrate for the selective binding of human IgA1 ICs in serum PEG precipitate (7%). The presence of IgG, A and M antibodies against the F(ab')2 region of IgG was also investigated by the solid-phase ELISA. Six patients were studied during remission and relapse (fever, upper respiratory tract infection and macroheamaturia). The results showed significant increases in serum levels of IgA1 ICs (P less than 0.001) in 39.4% of the IgAN patients, IgA1-IgG ICs (P less than 0.001) in 68.4%, and IgA1-IgM ICs (P less than 0.002) in 10.5% of the patients. A significant increase in IgA1-IgG ICs was observed during relapse (P less than 0.02). Significantly high values of IgG (P less than 0.003) and IgA (P less than 0.001) antibodies directed at the F(ab')2 region of IgG were found. A significant increase in anti F(ab')2 antibodies (class IgA and IgM) was seen in the acute phase of the disease. The data suggest that an increased production of IgA1 ICs occurs in IgAN patients; ICs are mainly IgA1-IgG ICs during relapse. The presence of high serum levels of IgG and IgA antibodies against the F(ab')2 region of IgG indicates that in addition to the multiple anomalies of IgA regulation described in IgAN patients there may be further aberrances.

Indexed as

AdolescentAdultAgedAntibodies, Anti-IdiotypicAntigen-Antibody ComplexFemaleGlomerulonephritis, IGAHumansImmunoglobulin AImmunoglobulin Fab FragmentsImmunoglobulin GImmunoglobulin MMaleMiddle AgedAntibodies, Anti-IdiotypicAntigen-Antibody ComplexImmunoglobulin AImmunoglobulin Fab FragmentsImmunoglobulin GImmunoglobulin M

Identifiers

PMID2788538
PMCPMC1541932
OpenAlexW2409104883

What OpenQuestion holds

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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.