Liver Kinase B1 Rs9282860 Polymorphism and Risk for Multiple Sclerosis in White and Black Americans

Overview

Journal Mult Scler Relat Disord

Specialty Neurology

Date 2021 Aug 9

PMID 34371271

Citations 1

Authors

Anne I Boullerne

Mitchell T Wallin

William J Culpepper

Heidi Maloni

Elizabeth A Boots

Dagmar M Sweeney

Douglas L Feinstein

Affiliations

Soon will be listed here.

Abstract

Background: We previously reported that the single nucleotide polymorphism (SNP) rs9282860 in serine threonine kinase 11 (STK11) gene which codes for liver kinase B1 (LKB1) has higher prevalence in White relapsing-remitting multiple sclerosis (RRMS) patients than controls. However it is not known if this SNP is a risk factor for MS in other populations.

Methods: We assessed the prevalence of the STK11 SNP in samples collected from African American (AA) persons with MS (PwMS) and controls at multiple Veterans Affairs (VA) Medical Centers and from a network of academic MS centers. Genotyping was carried out using a specific Taqman assay. Comparisons of SNP frequencies were made using Fisher's exact test to determine significance and odds ratios. Group means were compared by appropriate t-tests based on normality and variance using SPSS V27.

Results: There were no significant differences in average age at first symptom onset, age at diagnosis, disease duration, or disease severity between RRMS patients recruited from VAMCs versus non-VAMCs. The SNP was more prevalent in AA than White PwMS, however only in secondary progressive MS (SPMS) patients was that difference statistically significant. AA SPMS patients had higher STK11 SNP prevalence than controls; and in that cohort the SNP was associated with older age at symptom onset and at diagnosis.

Conclusions: The results suggest that the STK11 SNP represents a risk factor for SPMS in AA patients, and can influence both early (onset) and later (conversion to SPMSS) events.

Citing Articles

Disability outcomes in early-stage African American and White people with multiple sclerosis.

Petracca M, Palladino R, Droby A, Kurz D, Graziano N, Wang K Mult Scler Relat Disord. 2022; 69:104413.

PMID: 36399964 PMC: 9892256. DOI: 10.1016/j.msard.2022.104413.

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