Evidence map›Paper›PMID 1606721›Full record

ArticleClinical and experimental immunology1992

Increased and prolonged production of specific polymeric IgA after systemic immunization with tetanus toxoid in IgA nephropathy.

L Layward, A C Allen, S J Harper, J M Hattersley, J Feehally

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

13 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Pathogenesis of IgA nephropathy.Nature reviews. Nephrology · 2012
    Review
  5. Review
  6. Article
  7. Immunopathogenesis of IgAN.Seminars in immunopathology · 2007
    Review
  8. Article
  9. Article
  10. Hyper-immunoglobulin A in the hyperimmunoglobulinemia D syndrome.Clinical and diagnostic laboratory immunology · 2001
    Article
  11. Article
  12. Article
  13. Pathogenesis of idiopathic IgA nephropathy.Pediatric nephrology (Berlin, Germany) · 1993
    Review
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

5 authors at 1 institution in 1 country.

L LaywardDepartment of Nephrology, Leicester General Hospital, UK.
A C Allen
S J Harper
J M Hattersley
J Feehally
Leicester General Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

IgA nephropathy (IgAN) is a chronic form of glomerulonephritis which is characterized by the deposition in the glomerular mesangium of polymeric IgA (pIgA), the source of which is unknown. In order to investigate the production of pIgA in IgAN, patients were immunized systemically with tetanus toxoid (TT). Two weeks after immunization patients and controls responded to TT with an IgA response of similar magnitude. HPLC separation of sera showed that patients with IgAN produce significantly more pIgA anti-TT than controls (7.7 versus 2.88 arbitrary units; P less than 0.04). At this time, 33% of serum IgA anti-TT produced by patients with IgAN was polymeric, compared with 21% produced by controls (P less than 0.02). Monomeric IgA (mIgA) anti-TT levels were similar in both groups. Four weeks after immunization the proportion of pIgA anti-TT in controls and patients was significantly reduced from the 2 week level (from 21% to 0%, P less than 0.02 for controls; and from 33% to 8%, P less than 0.001, for patients). Only four out of 12 controls had any detectable pIgA anti-TT at this time compared with nine out of 10 patients with IgAN (P less than 0.05), and IgAN patients produced proportionally more pIgA anti-TT than did controls (median 8%, interquartile ranges (IQR) 4-10% versus 0% IQR 0-3%; P less than 0.01). HPLC analysis under acid conditions did not alter the pattern of pIgA and mIgA anti-TT, suggesting that the high molecular weight IgA fraction was not due to complexes. These data indicate that circulating pIgA results (at least in part) from a systemic response to antigen, which may be exaggerated in IgAN.

Indexed as

AdolescentAdultChromatography, High Pressure LiquidEnzyme-Linked Immunosorbent AssayFemaleGlomerulonephritis, IGAHumansImmunoglobulin AImmunoglobulin GMaleMiddle AgedTetanus ToxoidTime FactorsVaccinationImmunoglobulin AImmunoglobulin Gpolymeric IgATetanus Toxoid

Identifiers

PMID1606721
PMCPMC1554506
OpenAlexW2089611672

What OpenQuestion holds

Textmetadata
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.