Evidence map›Paper›PMID 31249957›Full record

ArticleTH open : companion journal to thrombosis and haemostasis2018

Bethesda Assay for Detecting Inhibitory Anti-ADAMTS13 Antibodies in Immune-Mediated Thrombotic Thrombocytopenic Purpura.

Chiara Vendramin, Mari Thomas, John-Paul Westwood, Marie Scully

Open access · goldAbstract read
In one paragraph

Article in TH open : companion journal to thrombosis and haemostasis, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 32% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Guideline
  2. Mutation Spectrum ofInternational journal of molecular sciences · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. ADAMTS13 Antibody and Inhibitor Assays.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  9. Article
  10. 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

4 authors at 2 institutions in 1 country.

Chiara VendraminDepartment of Haematology, University College London Hospital, London, United Kingdom.
Mari ThomasDepartment of Haematology, University College London Hospital, Cardiometabolic Programme NIHR UCLH/UCL BRC, London, United Kingdom.
John-Paul WestwoodDepartment of Haematology, University College London Hospital, London, United Kingdom.
Marie ScullyDepartment of Haematology, University College London Hospital, Cardiometabolic Programme NIHR UCLH/UCL BRC, London, United Kingdom.
University College Hospital · GBUniversity College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A diagnosis of thrombotic thrombocytopenic purpura (TTP) is confirmed by a severe deficiency (<10%) of a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13 (ADAMTS13) activity. Autoantibodies to ADAMTS13 can be detected with a simplified enzyme-linked immunosorbent assay (ELISA). An alternative methodology is a Bethesda assay, which has never been formally assessed in TTP. This study aimed to investigate the inhibitory anti-ADAMTS13 antibody assay and determine if the Bethesda assay is advantageous compared with the ELISA, measuring total immunoglobulin G (IgG) antibodies to ADAMTS 13. The Bethesda method determines the neutralizing activity of anti-ADAMTS13 antibodies in pooled normal plasma. We selected six immune-mediated TTP (iTTP) patients with ADAMTS13 activity levels <10% and strong ADAMTS13 inhibitors by 50:50 mixing studies and analyzed anti-ADAMTS13 antibodies using the Bethesda and ELISA assays. ADAMTS13 activity was stable at room temperature, while a time-dependent decrease in activity was detected in assay conditions of 37°C. Adding 5 mM Ca

Indexed as

ADAMTS13 proteinanti-ADAMTS13 inhibitorsBethesda assayenzyme-linked immunosorbent assayHuman plasmathrombotic thrombocytopenic purpura

Identifiers

PMID31249957
PMCPMC6524890
OpenAlexW2893624074

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.