Dr. Yong-Su Jin and team used CHPs in their research to follow collagen synthesis and degradation through an IPF (idiopathic pulmonary fibrosis) model using bleomycin and the resolution of fibrosis thereafter. Because biochemical assays (the golden standard) show consistently high levels of hydroxyproline content, it fails to detect that fibrosis can resolve itself.  Jin et al. used CHPs and Sirius red in histopathology to observe that collagen l...