Abstract
Background
A genetic variant in the manganese transporter SLC30A10 (rs188273166, p.Thr95Ile) was associated with increased plasma alanine transaminase (ALT) in a recent genome-wide association study in the UK Biobank (UKB). The aims of the present study were to test the association of rs188273166 with ALT in an independent cohort, and to begin to assess the clinical, hepatic, and biochemical phenotypes associated with the variant.
Methods
We included n = 334,886 white participants from UKB, including 14,462 with hepatic magnetic resonance imaging (MRI), and n = 113,612 individuals from the Copenhagen City Heart Study and the Copenhagen General Population Study combined.
Results
Genotyping SLC30A10 p.Thr95Ile identified 816 heterozygotes in the UKB and 111 heterozygotes in the Copenhagen cohort. Compared to noncarriers, heterozygotes had 4 and 5 U/L higher levels of ALT in the UKB and Copenhagen cohort, respectively, and 3 U/L higher plasma aspartate transaminase and gamma-glutamyl transferase in the UKB. Heterozygotes also had higher corrected T1 on liver MRI, a marker of hepatic inflammation (p = 4 × 10–7), but no change in MRI-quantified steatosis (p = 0.57). Plasma manganese was within the normal range in nine heterozygotes that provided new blood samples. SLC30A10 p.Thr95Ile heterozygotes had an eightfold increased risk of biliary tract cancer in UKB (p = 4 × 10–7), but this association was not replicated in the Copenhagen cohort.
Conclusions
SLC30A10 p.Thr95Ile was associated with elevated liver enzymes in two large general population cohorts, and with MRI-quantified hepatic inflammation.
Graphical abstract
A rare genetic variant (p.Thr95Ile) in the manganese transporter SLC30A10 is associated with elevated plasma alanine transaminase (ALT) and higher corrected T1 on liver MRI, markers of liver inflammation. These data support that the variant may increase the risk of liver disease.
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Data availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Abbreviations
- CCHS:
-
Copenhagen City Heart Study
- CGPS:
-
Copenhagen General Population Study
- PDFF:
-
Proton density fat fraction
- PNPLA3:
-
Patatin-like phospholipase domain-containing protein 3
- SLC30A10:
-
Solute Carrier Family 30 Member 10
- UKB:
-
UK Biobank
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Acknowledgements
We thank the staff and participants of the UKB, CGPS, and CCHS. This research has been conducted using the UK Biobank Resource (application identifiers 9914 and 15825). We thank Per Bo Jensen for help with the ICP-MS analyses of manganese.
Funding
This work was supported by Independent Research Fund Denmark and the Research Fund at Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark. Stefan Stender is supported by a Sapere Aude Research Leader grant from Independent Research Fund Denmark (9060-00012B). Hanieh Yaghootkar is funded by Diabetes UK RD Lawrence fellowship (grant: 17/0005594). The funding organizations had no role in any of the following: design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript.
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AS: data curation, formal analysis, investigation, visualization, writing—original draft, writing—review and editing. BGN: resources, writing—review and editing. ATH: resources, writing—review and editing. HY: resources, formal analysis, writing—review and editing. SS: conceptualization, data curation, formal analysis, investigation, visualization, funding acquisition, supervision, writing—original draft, writing—review and editing. All authors approved the final version of the manuscript.
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Anne-Sofie Seidelin, Børge Grønne Nordestgaard, Anne Tybjærg-Hansen, Hanieh Yaghootkar and Stefan Stender have no relevant financial or non-financial interests to disclose.
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Seidelin, AS., Nordestgaard, B.G., Tybjærg-Hansen, A. et al. A rare genetic variant in the manganese transporter SLC30A10 and elevated liver enzymes in the general population. Hepatol Int 16, 702–711 (2022). https://doi.org/10.1007/s12072-022-10331-w
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DOI: https://doi.org/10.1007/s12072-022-10331-w