Observational studyJournal of the American Heart Association2025
Association of Subgingival Microbiota Composition With Risk, Severity, and Outcome of Cryptogenic Ischemic Stroke in Young Adults.
Observational study in Journal of the American Heart Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01934725 (Searching for Explanations for Cryptogenic Stroke in the Young), which is not on this map. Cited by 4 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Searching for Explanations for Cryptogenic Stroke in the Young: Revealing the Etiology, Triggers, and Outcome (SECRETO)
Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Diversity and taxonomic differences in the oral microbiota of stroke patients: a systematic review and meta-analysis.Frontiers in microbiology · 2026Pooled it
- Machine Learning Stratification of Periodontal and Cerebrovascular Disease Status Using Salivary and Subgingival Lipopolysaccharide Activity.Journal of cellular and molecular medicine · 2026Article
- Periodontitis and Endotoxemia: Clinical and Microbiological Insights.Journal of clinical periodontology · 2026Article
- Human Oral-AssociatedMicroorganisms · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOral and gut dysbiosis has been linked to stroke pathogenesis and its prognosis. However, the relationship between the subgingival microbiota and cryptogenic ischemic stroke (CIS) remains unclear. We compared the subgingival microbiota of patients with CIS and their age-and sex-matched stroke-free controls to identify the specific microbiota associated with CIS, stroke symptom severity, and clinical outcome.
methodsThis multicenter, case-control study was conducted between 2013 and 2019 as part of a screening protocol for the SECRETO (Searching for Explanations for Cryptogenic Stroke in the Young: Revealing the Etiology, Triggers, and Outcome) study (NCT01934725). Stroke severity was assessed using the National Institutes of Health Stroke Scale score. After thorough clinical and radiographic oral examinations, subgingival samples were collected and analyzed using 16S rRNA gene sequencing.
resultsA total of 272 participants (134 patients and 138 controls) were included. There were no differences in the following clinical characteristics between patients and controls: diabetes, hypertension, smoking, alcohol use, abdominal obesity, physical activity, and chronic multiorgan disease. Beta diversity differed significantly between patients and controls (
conclusionsThe subgingival microbiota is associated with CIS, suggesting a possible link between oral health and stroke pathophysiology. Although causality cannot be proven, oral microbiota may be a modifiable treatment target for the prevention of CIS and improving its outcome.
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