Topical application of propolis enhances cutaneous wound healing by promoting TGF-beta/Smad-mediated collagen production in a streptozotocin-induced type I diabetic mouse model - Hozzein, W N; Badr, G; Al, Ghamdi AA; Sayed, A; Al-Waili, N S; Garraud, O (Cell Physiol Biochem, 2015)