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Association Between Cc Chemokine Ligand 3-Like-1 (Ccl3l1) Gene Copy Number And Rheumatoid Arthritis In African Americans, Mawuli Kwame Nyaku

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Gene copy number of the CC Chemokine ligand 3-Like-1 (CCL3L1) located on chromosome 17 position q12 varies between ethnicities. Previously, gene copy number of CCL3L1 greater than the ethnic median copy has been associated with an increased risk of Rheumatoid Arthritis. Three later studies found no association between CCL3L1 and RA. All studies were conducted in non-African Americans and an objective of this study was to determine this association in an African American cohort. CCL3L1 shares significant homology with three other genes within the same cluster; CC Chemokine ligand 3 (CCL3), CC Chemokine ligand 3-Like-2 (CCL3L2) and CC Chemokine ligand …