Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate PRLH in samples. An antibody specific for PRLH has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyPRLH present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for PRLH is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of PRLH bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:Prolactin-releasing hormone, also known as PRLH, is a hypothetical human hormone or hormone releasing factor. Existence of this factor has been hypothesized as prolactin is the only currently known hormone for which almost exclusively negative regulating factors are known (such as dopamine, leukemia inhibitory factor, some prostaglandins) but few stimulating factors. While many prolactin stimulating and enhancing factors are well known (such as thyrotropin-releasing hormone, oxytocin, vasoactive intestinal peptide and estrogen) those have primary functions other than stimulating prolactin release and the search for hypothetical releasing factor or factors continues.
The prolactin-releasing peptide identified in 1998 was a candidate for this function, however as of 2008 it appears its function is not yet completely elucidated.