Abstract
Background & Aims
Esophageal adenocarcinoma (EAC) occurs most frequently in men. We performed a Mendelian randomization analysis to investigate whether genetic factors that regulate levels of sex hormones are associated with risk of EAC or Barrett’s esophagus (BE).
Methods
We conducted a Mendelian randomization analysis using data from patients with EAC (n = 2488) or BE (n = 3247) and control participants (n = 2127), included in international consortia of genome-wide association studies in Australia, Europe, and North America. Genetic risk scores or single-nucleotide variants were used as instrumental variables for 9 specific sex hormones. Logistic regression provided odds ratios (ORs) with 95% CIs.
Results
Higher genetically predicted levels of follicle-stimulating hormones were associated with increased risks of EAC and/or BE in men (OR, 1.14 per allele increase; 95% CI, 1.01–1.27) and in women (OR, 1.28; 95% CI, 1.03–1.59). Higher predicted levels of luteinizing hormone were associated with a decreased risk of EAC in men (OR, 0.92 per SD increase; 95% CI, 0.87–0.99) and in women (OR, 0.93; 95% CI, 0.79–1.09), and decreased risks of BE (OR, 0.88; 95% CI, 0.77–0.99) and EAC and/or BE (OR, 0.89; 95% CI, 0.79–1.00) in women. We found no clear associations for other hormones studied, including sex hormone–binding globulin, dehydroepiandrosterone sulfate, testosterone, dihydrotestosterone, estradiol, progesterone, or free androgen index.
Conclusions
In a Mendelian randomization analysis of data from patients with EAC or BE, we found an association between genetically predicted levels of follicle-stimulating and luteinizing hormones and risk of BE and EAC.
Esophageal adenocarcinoma (EAC) occurs most frequently in men. We performed a Mendelian randomization analysis to investigate whether genetic factors that regulate levels of sex hormones are associated with risk of EAC or Barrett’s esophagus (BE).
Methods
We conducted a Mendelian randomization analysis using data from patients with EAC (n = 2488) or BE (n = 3247) and control participants (n = 2127), included in international consortia of genome-wide association studies in Australia, Europe, and North America. Genetic risk scores or single-nucleotide variants were used as instrumental variables for 9 specific sex hormones. Logistic regression provided odds ratios (ORs) with 95% CIs.
Results
Higher genetically predicted levels of follicle-stimulating hormones were associated with increased risks of EAC and/or BE in men (OR, 1.14 per allele increase; 95% CI, 1.01–1.27) and in women (OR, 1.28; 95% CI, 1.03–1.59). Higher predicted levels of luteinizing hormone were associated with a decreased risk of EAC in men (OR, 0.92 per SD increase; 95% CI, 0.87–0.99) and in women (OR, 0.93; 95% CI, 0.79–1.09), and decreased risks of BE (OR, 0.88; 95% CI, 0.77–0.99) and EAC and/or BE (OR, 0.89; 95% CI, 0.79–1.00) in women. We found no clear associations for other hormones studied, including sex hormone–binding globulin, dehydroepiandrosterone sulfate, testosterone, dihydrotestosterone, estradiol, progesterone, or free androgen index.
Conclusions
In a Mendelian randomization analysis of data from patients with EAC or BE, we found an association between genetically predicted levels of follicle-stimulating and luteinizing hormones and risk of BE and EAC.
Original language | English |
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Pages (from-to) | 2701-2709.e3 |
Number of pages | 10 |
Journal | Clinical Gastroenterology and Hepatology |
Volume | 18 |
Issue number | 12 |
Early online date | 19 Nov 2019 |
DOIs | |
Publication status | Published - Nov 2020 |
Bibliographical note
Supported by the Bengt Ihres Foundation ( SLS-78016 ), the Ruth and Richard Julin Foundation ( 2018-00137 ), the Swedish Research Council ( 521-2014-2536 and 2015-06275 ), the Swedish Cancer Society ( CAN 2015/460 ), and the National Natural Science Foundation of China ( 8151101160 ).Keywords
- Esophageal Neoplasms
- Sex Difference
- Gonadal Steroid
- Hormones
- Causality
- QUALITY
- MALE PREDOMINANCE
- MENDELIAN RANDOMIZATION
- STEROID-HORMONES
- Gonadal Steroid Hormones
- LUTEINIZING-HORMONE
- POOLED ANALYSIS
- ESOPHAGOGASTRIC JUNCTION
- FSH
- PROMOTER
- GENOME-WIDE ASSOCIATION