@article{b4aa5941828e4aa98c9f6f0f37f6a982,
title = "The association of PTPN22 rs2476601 with juvenile idiopathic arthritis is specific to females",
abstract = "A preponderance of females develop autoimmune disease, including juvenile idiopathic arthritis (JIA), yet the reason for this bias remains elusive. Evidence suggests that genetic risk of disease may be influenced by sex. PTPN22 rs2476601 is associated with JIA and numerous other autoimmune diseases, and has been reported to show female-specific association with type 1 diabetes. We performed main effect and sex-stratified association analyses to determine whether a sex-specific association exists in JIA. As expected, rs2476601 was associated with JIA in our discovery (413 cases and 690 controls) and replication (1008 cases and 9284 controls) samples. Discovery sample sex-stratified analyses demonstrated an association specifically in females (odds ratio (OR)=2.35, 95% confidence interval (CI)=1.52-3.63, P=0.00011) but not males (OR=0.91, 95% CI=0.52-1.60, P=0.75). This was similarly observed in the replication sample. There was evidence for genotype-by-sex interaction (P interaction =0.009). The association between rs2476601 and JIA appears restricted to females, partly accounting for the predominance of females with this disease.",
author = "Chiaroni-Clarke, {R. C.} and Li, {Y. R.} and Munro, {J. E.} and Chavez, {R. A.} and Scurrah, {K. J.} and A. Pezic and Akikusa, {J. D.} and Allen, {R. C.} and Piper, {S. E.} and Becker, {M. L.} and Thompson, {S. D.} and Lie, {B. A.} and B. Flato and O. Forre and M. Punaro and C. Wise and R. Saffery and Finkel, {T. H.} and H. Hakonarson and Ponsonby, {A. L.} and Ellis, {J. A.}",
note = "Funding Information: We thank the participants and their families for their generous donation of information and biospecimens to this study, along with the research staff who recruited them. We acknowledge funding from the National Health and Medical Research Council of Australia (NHMRC, #APP1026349), along with a number of other philanthropic organizations including Arthritis Australia, Australian Academy of Science (Travelling Fellowship to the USA to JAE) and the Rebecca Cooper Foundation. This work was supported by the Victorian State Government Operational Infrastructure Program; and by The Children{\textquoteright}s Hospital of Philadelphia Research Institute, the Moran Family Foundation and the National Institutes of Health (RC1 AR058606) to HH and THF. JAE is supported by an Australian Research Council Future Fellowship (#FT120100253). YRL is supported by the Paul and Daisy Soros Fellowship for New Americans and the NIH Medical Scientist Training Program. ALP and RS are supported by National Health and Medical Research Council (Australia) Senior Research Fellowships. Publisher Copyright: {\textcopyright} 2015 Macmillan Publishers Limited All rights reserved.",
year = "2015",
month = oct,
day = "1",
doi = "10.1038/gene.2015.32",
language = "English (US)",
volume = "16",
pages = "495--498",
journal = "Genes and Immunity",
issn = "1466-4879",
publisher = "Nature Publishing Group",
number = "7",
}