Evidence map›Paper›PMID 31452477›Full record

ArticleParasitology2019

How can schistosome circulating antigen assays be best applied for diagnosing male genital schistosomiasis (MGS): an appraisal using exemplar MGS cases from a longitudinal cohort study among fishermen on the south shoreline of Lake Malawi.

S A Kayuni, P L A M Corstjens, E J LaCourse, K E Bartlett, J Fawcett, A Shaw, P Makaula, F Lampiao, L Juziwelo, C J de Dood and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Parasitology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 14% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

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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

16 authors at 6 institutions in 4 countries.

S A KayuniDepartment of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK.
P L A M CorstjensDepartment of Cell and Chemical Biology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
E J LaCourseDepartment of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK.
K E BartlettDepartment of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK.
J FawcettDepartment of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK.
A ShawDepartment of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK.
P MakaulaResearch for Health, Environment and Development (RHED), Mangochi, Malawi.
F LampiaoPhysiology Department, College of Medicine, University of Malawi, Blantyre, Malawi.
L JuziweloNational Schistosomiasis and STH Control Programme, Community Health Sciences Unit, Ministry of Health, Lilongwe, Malawi.
C J de DoodDepartment of Cell and Chemical Biology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
P T HoekstraDepartment of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
J J VerweijLaboratory for Medical Microbiology and Immunology, Elisabeth-Tweesteden Hospital, Tilburg, Hilvarenbeekseweg 60, Tilburg, The Netherlands.
P D C LeutscherCentre for Clinical Research, North Denmark Regional Hospital & Department of Clinical Medicine, Aalborg University, Region Nordjylland, Denmark.
G J van DamDepartment of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
L van LieshoutDepartment of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
J R StothardDepartment of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK.ORCID 0000-0002-9370-3420
Liverpool School of Tropical Medicine · GBLeiden University Medical Center · NLElisabeth-TweeSteden Ziekenhuis · NLNorth Denmark Region · DKPublic Health Institute of Malawi · MWUniversity of Malawi · MW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We provide an update on diagnostic methods for the detection of urogenital schistosomiasis (UGS) in men and highlight that satisfactory urine-antigen diagnostics for UGS lag much behind that for intestinal schistosomiasis, where application of a urine-based point-of-care strip assay, the circulating cathodic antigen (CCA) test, is now advocated. Making specific reference to male genital schistosomiasis (MGS), we place greater emphasis on parasitological detection methods and clinical assessment of internal genitalia with ultrasonography. Unlike the advances made in defining a clinical standard protocol for female genital schistosomiasis, MGS remains inadequately defined. Whilst urine filtration with microscopic examination for ova of Schistosoma haematobium is a convenient but error-prone proxy of MGS, we describe a novel low-cost sampling and direct visualization method for the enumeration of ova in semen. Using exemplar clinical cases of MGS from our longitudinal cohort study among fishermen along the shoreline of Lake Malawi, the portfolio of diagnostic needs is appraised including: the use of symptomatology questionnaires, urine analysis (egg count and CCA measurement), semen analysis (egg count, circulating anodic antigen measurement and real-time polymerase chain reaction analysis) alongside clinical assessment with portable ultrasonography.

Indexed as

FisheriesAdolescentAdultAgedAnimalsAntigens, HelminthGenitalia, MaleHumansLakesLongitudinal StudiesMalawiMaleMiddle AgedParasite Egg CountPoint-of-Care SystemsPolysaccharidesAntigens, HelminthPolysaccharidesCAACCAdiagnosticsglycansMGSSchistosoma haematobium

Identifiers

PMID31452477
PMCPMC6939168
OpenAlexW2970511826

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.