The parameters determined were the levels of CD4 + , CD19 + , CD19 + CD69 + , CD19 + av , Treg ( CD4 + CD25 + CD127lo ) , BGP , TRAP , IL-17 , calcium , phosphate , blood urea nitrogen , serum creatinine ( SCr ) , hemoglobin ( Hb ) in peripheral blood , and urinary creatinine .