Multiple sclerosis risk loci and disease severity in 7,125 individuals from 10 studies
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Multiple sclerosis risk loci and disease severity in 7,125 individuals from 10 studies. / George, Michaela F; Briggs, Farren B S; Shao, Xiaorong; Gianfrancesco, Milena A; Kockum, Ingrid; Harbo, Hanne F; Celius, Elisabeth G; Bos, Steffan D; Hedström, Anna Karin; Shen, Ling; Bernstein, Allan; Alfredsson, Lars; Hillert, Jan; Olsson, Tomas; Patsopoulos, Nikolaos A; De Jager, Philip L; Oturai, Annette B; Søndergaard, Helle B; Sellebjerg, Finn; Sorensen, Per S; Gomez, Refujia; Caillier, Stacy J; Cree, Bruce A C; Oksenberg, Jorge R; Hauser, Stephen L; D'alfonso, Sandra; Leone, Maurizio A; Martinelli-Boneschi, Filippo; Sorosina, Melissa; van der Mei, Ingrid; Taylor, Bruce V; Zhou, Si-Yuan; Schaefer, Catherine A; Barcellos, Lisa F.
I: Neurology: Genetics, Bind 2, Nr. 4, e87, 08.2016.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Multiple sclerosis risk loci and disease severity in 7,125 individuals from 10 studies
AU - George, Michaela F
AU - Briggs, Farren B S
AU - Shao, Xiaorong
AU - Gianfrancesco, Milena A
AU - Kockum, Ingrid
AU - Harbo, Hanne F
AU - Celius, Elisabeth G
AU - Bos, Steffan D
AU - Hedström, Anna Karin
AU - Shen, Ling
AU - Bernstein, Allan
AU - Alfredsson, Lars
AU - Hillert, Jan
AU - Olsson, Tomas
AU - Patsopoulos, Nikolaos A
AU - De Jager, Philip L
AU - Oturai, Annette B
AU - Søndergaard, Helle B
AU - Sellebjerg, Finn
AU - Sorensen, Per S
AU - Gomez, Refujia
AU - Caillier, Stacy J
AU - Cree, Bruce A C
AU - Oksenberg, Jorge R
AU - Hauser, Stephen L
AU - D'alfonso, Sandra
AU - Leone, Maurizio A
AU - Martinelli-Boneschi, Filippo
AU - Sorosina, Melissa
AU - van der Mei, Ingrid
AU - Taylor, Bruce V
AU - Zhou, Si-Yuan
AU - Schaefer, Catherine A
AU - Barcellos, Lisa F
PY - 2016/8
Y1 - 2016/8
N2 - OBJECTIVE: We investigated the association between 52 risk variants identified through genome-wide association studies and disease severity in multiple sclerosis (MS).METHODS: Ten unique MS case data sets were analyzed. The Multiple Sclerosis Severity Score (MSSS) was calculated using the Expanded Disability Status Scale at study entry and disease duration. MSSS was considered as a continuous variable and as 2 dichotomous variables (median and extreme ends; MSSS of ≤5 vs >5 and MSSS of <2.5 vs ≥7.5, respectively). Single nucleotide polymorphisms (SNPs) were examined individually and as both combined weighted genetic risk score (wGRS) and unweighted genetic risk score (GRS) for association with disease severity. Random-effects meta-analyses were conducted and adjusted for cohort, sex, age at onset, and HLA-DRB1*15:01.RESULTS: A total of 7,125 MS cases were analyzed. The wGRS and GRS were not strongly associated with disease severity after accounting for cohort, sex, age at onset, and HLA-DRB1*15:01. After restricting analyses to cases with disease duration ≥10 years, associations were null (p value ≥0.05). No SNP was associated with disease severity after adjusting for multiple testing.CONCLUSIONS: The largest meta-analysis of established MS genetic risk variants and disease severity, to date, was performed. Results suggest that the investigated MS genetic risk variants are not associated with MSSS, even after controlling for potential confounders. Further research in large cohorts is needed to identify genetic determinants of disease severity using sensitive clinical and MRI measures, which are critical to understanding disease mechanisms and guiding development of effective treatments.
AB - OBJECTIVE: We investigated the association between 52 risk variants identified through genome-wide association studies and disease severity in multiple sclerosis (MS).METHODS: Ten unique MS case data sets were analyzed. The Multiple Sclerosis Severity Score (MSSS) was calculated using the Expanded Disability Status Scale at study entry and disease duration. MSSS was considered as a continuous variable and as 2 dichotomous variables (median and extreme ends; MSSS of ≤5 vs >5 and MSSS of <2.5 vs ≥7.5, respectively). Single nucleotide polymorphisms (SNPs) were examined individually and as both combined weighted genetic risk score (wGRS) and unweighted genetic risk score (GRS) for association with disease severity. Random-effects meta-analyses were conducted and adjusted for cohort, sex, age at onset, and HLA-DRB1*15:01.RESULTS: A total of 7,125 MS cases were analyzed. The wGRS and GRS were not strongly associated with disease severity after accounting for cohort, sex, age at onset, and HLA-DRB1*15:01. After restricting analyses to cases with disease duration ≥10 years, associations were null (p value ≥0.05). No SNP was associated with disease severity after adjusting for multiple testing.CONCLUSIONS: The largest meta-analysis of established MS genetic risk variants and disease severity, to date, was performed. Results suggest that the investigated MS genetic risk variants are not associated with MSSS, even after controlling for potential confounders. Further research in large cohorts is needed to identify genetic determinants of disease severity using sensitive clinical and MRI measures, which are critical to understanding disease mechanisms and guiding development of effective treatments.
U2 - 10.1212/NXG.0000000000000087
DO - 10.1212/NXG.0000000000000087
M3 - Journal article
C2 - 27540591
VL - 2
JO - Neurology: Genetics
JF - Neurology: Genetics
SN - 2376-7839
IS - 4
M1 - e87
ER -
ID: 180853717