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Expression levels of SDF-1 and CXCR4 are increased in DKD. Comparison of SDF-1 (A) and CXCR4 expression (B) in the renal tissues between DKD patients and healthy donors (Normal). Expression data were retrieved from Gene Expression Omnibus repository (GSE30122). The total number of samples is given in parentheses. p values are calculated with Student's t test.
