Immunocytochemical staining was used to evaluate the expression of collagen type III after 24 h incubation with decoction at 50 µg/mL. Betulinic acid (2 µM) was used as a positive control. The study was performed exactly as described in our previous paper [7 (link)], except that a decoction was used instead of acetone and ethanol extracts. The intensity of immunohistochemical staining was evaluated as negative (−), weak (+), moderate (++), or strong (+++), as in the previous article [7 (link),26 (link)].
Free full text: Click here