Protein Bead Array for the Detection of HIV-1 Antibodies from Fresh Plasma and Dried-Blood-Spot Specimens

Abstract

ing the observed differences between the two methods. Our study is even more intriguing if we consider that, very recently, a new molecular form of PTH, with structural integrity of the PTH(1-4) region and a modified PTH(15-20) region, has been identified by HPLC in primary and secondary hyperparathyroidism (21 ). In fact, this newly discovered form of PTH appears to be immunoreactive and detectable by the whole-PTH assay but not by the intact-PTH assay.