| Title: | A survey of functional dyspepsia in 361,360 individuals: Phenotypic and genetic cross-disease analyses |
| Journal: | Neurogastroenterology & Motility |
| Published: | 11 Aug 2021 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/34378841/ |
| DOI: | https://doi.org/10.1111/nmo.14236 |
| URL: | https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/nmo.14236 |
| Citations: | 11 (5 in last 2 years) as of 8 Aug 2024 |
Publication 3949
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Abstract
BACKGROUND: Functional dyspepsia (FD) is a common gastrointestinal condition of poorly understood pathophysiology. While symptoms' overlap with other conditions may indicate common pathogenetic mechanisms, genetic predisposition is suspected but has not been adequately investigated.</p>
METHODS: Using healthcare, questionnaire, and genetic data from three large population-based biobanks (UK Biobank, EGCUT, and MGI), we surveyed FD comorbidities, heritability, and genetic correlations across a wide spectrum of conditions and traits in 10,078 cases and 351,282 non-FD controls of European ancestry.</p>
KEY RESULTS: In UK Biobank, 281 diagnoses were detected at increased prevalence in FD, based on healthcare records. Among these, gastrointestinal conditions (OR = 4.0, p < 1.0 × 10-300 ), anxiety disorders (OR = 2.3, p < 1.4 × 10-27 ), ischemic heart disease (OR = 2.2, p < 2.3 × 10-76 ), and infectious and parasitic diseases (OR = 2.1, p = 1.5 × 10-73 ) showed strongest association with FD. Similar results were obtained in an analysis of self-reported conditions and use of medications from questionnaire data. Based on a genome-wide association meta-analysis of genotypes across all cohorts, FD heritability was estimated close to 5% ( hSNP2 = 0.047, p = 0.014). Genetic correlations indicate FD predisposition is shared with several other diseases and traits (rg > 0.344), mostly overlapping with those also enriched in FD patients. Suggestive (p < 5.0 × 10-6 ) association with FD risk was detected for 13 loci, with 2 showing nominal replication (p < 0.05) in an independent cohort of 192 FD patients.</p>
CONCLUSIONS & INFERENCES: FD has a weak heritable component that shows commonalities with multiple conditions across a wide spectrum of pathophysiological domains. This new knowledge contributes to a better understanding of FD etiology and may have implications for improving its treatment.</p>
7 Keywords
- Crosses, Genetic
- Dyspepsia
- Gastrointestinal Diseases
- Genetic Predisposition to Disease
- Genome-Wide Association Study
- Humans
- Surveys and Questionnaires
15 Authors
- Koldo Garcia-Etxebarria
- Florencia Carbone
- Maris Teder-Laving
- Anita Pandit
- Lieselot Holvoet
- Vincent Thijs
- Robin Lemmens
- Luis Bujanda
- Andre Franke
- Sebastian Zöllner
- Michael Boehnke
- Matthew Zawistowski
- Tonu Esko
- Tack Jan
- Mauro D'Amato
Enabling scientific discoveries that improve human health