Evidence map›Paper›PMID 42121064›Full record

SynthesisBMC infectious diseases2026

Zinc-based therapies for prevention and treatment of vulvovaginal candidiasis: a systematic review and meta-analysis.

Jonani Bwambale, Betty Nakawuka, Gerald Mboowa, Felix Bongomin, Richard Kwizera

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in BMC infectious diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Jonani BwambaleDepartment of Immunology and Molecular Biology, School of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda. bwambjons@gmail.com.ORCID http://orcid.org/0009-0000-9719-3934
Betty NakawukaDepartment of Medicine, Faculty of Health Sciences, Busitema University, P. O. Box 1460, Mbale, Uganda.
Gerald MboowaThe African Centre of Excellence in Bioinformatics and Data-Intensive Sciences, Infectious Diseases Institute, Makerere University, Kampala, Uganda.
Felix BongominDepartment of Medical Microbiology and Immunology, Faculty of Medicine, Gulu University, Gulu, Uganda.
Richard KwizeraDepartment of Research, Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundZinc is essential for epithelial integrity and antifungal immunity and may influence host-pathogen interactions in vulvovaginal candidiasis (VVC). However, the relationship between zinc status, zinc-based interventions, and VVC pathogenisis remains unclear. We aimed to assess the clinical efficacy of zinc-based interventions for recurrence prevention and to examine their effects on Candida virulence and inflammatory pathways.

methodsWe systematically searched the MEDLINE, Scopus, the Cochrane Central Register, and trial registries from inception to September 2025. We included observational, interventional, and experimental studies that evaluated zinc status or zinc-based therapies in VVC. Random-effects meta-analyses were used to estimate the pooled standardized mean differences (SMD) for zinc concentrations with subgroup analyses by sample type and pregnancy status. Risk ratio and risk difference for recurrence outcomes were calculated using Fisher's exact test.

resultsOur search identified 45 records and eleven studies (six observational, two randomised controlled trials (RCTs), and three quasi-experimental) met the inclusion criteria. Six plasma/serum comparisons from observational studies were meta-analyzed. Women with VVC had significantly lower systemic zinc levels than controls (pooled SMD = - 0.72, 95% CI: -1.15 to - 0.28, p = 0.001; I²=73.5%). Pregnancy status was a significant moderator (X

conclusionsZinc deficiency is associated with VVC, with a larger effect in pregnant women likely reflecting altered zinc physiology in pregnancy. Lower zinc levels in VVC may reflect a host nutritional immunity rather than a pre-existing deficiency, and causality cannot be established from the available cross-sectional evidence. Clinical trials remain insufficient to support zinc-based therapies for routine use in VVC.

trial registrationNot applicable. REGISTRATION: The protocol was prospectively registered in PROSPERO (CRD420251152091).

Indexed as

Antifungal AgentsCandidiasis, VulvovaginalZincCandidaFemaleHumansAntifungal AgentsZincCandida speciesRecurrence preventionVulvovaginal candidiasisZinc deficiencyZinc supplementation

Identifiers

PMID42121064
PMCPMC13340122

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.