Periostin Measerement
Serum periostin levels were assayed by ELISA method (Thermo Scientifc
Multiskan GO, Finland) using commercially available periostin ELISA Kits
(Elabscience catalog no: E-EL-H2452). The assay ranges for the periostin
kit were 0.16-10 ng/ml, sensitivity 0.1 ng/mL and the intra- and
interassay coefficients of variance (CV%) were 5.8% and 6.1%,
respectively