FN Archimer Export Format PT J TI A novel pectic polysaccharide-based hydrogel derived from okra (Abelmoschus esculentus L. Moench) for chronic diabetic wound healing BT AF Maalej, Hana Maalej, Amina Bayach, Asma Zykwinska, Agata COLLIEC JOUAULT, Sylvia Sinquin, Corinne Marchand, Laetitia Ktari, Naourez Bardaa, Sana Ben Salah, Riadh Chamkha, Mohamed Boufi, Sami Nasri, Moncef AS 1:1;2:2;3:1;4:3;5:3;6:3;7:3;8:4;9:5;10:6;11:2;12:7;13:8; FF 1:;2:;3:;4:PDG-RBE-MASAE-LEMMMB;5:PDG-RBE-MASAE-LEMMMB;6:PDG-RBE-MASAE-LEMMMB;7:PDG-RBE-BRM-LEMMMB;8:;9:;10:;11:;12:;13:; C1 University of Gabes, Faculty of Sciences of Gabes, Laboratory of Biodiversity and Valorization of Arid Areas Bioresources (BVBAA), LR16ES36, Faculty of Sciences, Erriadh 6072, Gabes, Tunisia Environmental Bioprocesses Laboratory, Sfax Biotechnology Center, P.O. Box 1177, Sfax 3018, Tunisia Ifremer, MASAE, 44300 Nantes, France University of Gabes, Faculty of Sciences of Gabes, Department of Life Sciences, Gabes 6072, Tunisia Laboratory of Pharmacology, Faculty of Medicine of Sfax, University of Sfax, Tunisia Laboratory of Microorganisms and Biomolecules, Sfax Biotechnology Center, 3018 Sfax, Tunisia University of Sfax- LMSE-Faculty of Science-BP 802-3018, Sfax, Tunisia Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia C2 UNIV GABES, TUNISIA UNIV SFAX, TUNISIA IFREMER, FRANCE UNIV GABES, TUNISIA UNIV SFAX, TUNISIA UNIV SFAX, TUNISIA UNIV SFAX, TUNISIA UNIV SFAX, TUNISIA SI NANTES SE PDG-RBE-MASAE-LEMMMB PDG-RBE-BRM-LEMMMB IN WOS Ifremer UPR copubli-int-hors-europe copubli-sud IF 6 TC 6 UR https://archimer.ifremer.fr/doc/00811/92292/98339.pdf LA English DT Article DE ;Okra polysaccharide;Pectin;Physicochemical features;Rheological properties;Antioxidant potential;Hydrogel;Wound healing;Scratch assay;Cell migration;Diabetic wound AB Hydrogels based on natural polysaccharides represent a growing group of suitable biomaterials for the elaboration of effective wound healing dressings, especially for the treatment of chronic wounds. This work was intended to prepare a polysaccharide-based hydrogel for diabetic wound healing which would help maintain the well-being of diabetes and improve their quality of life. For this purpose, a pectic polysaccharide (OPS) was extracted and purified, for the first time, from Tunisian okra pods and its physicochemical and rheological features, antioxidant and in vivo and in vitro wound healing activities were investigated. OPS, an acidic polysaccharide with a molecular weight of 3.28 × 106 Da and a polydispersity index of 1.03, was mainly composed of galactose (24.45%), galacturonic acid (24.6%) and rhamnose (18.25%). Combined with FT-IR and NMR analyses, it consisted of a pectic rhamnogalacturonan I (RG-I) structure with galactan side chains. The OPS demonstrated antioxidant potential, gelling ability, cytocompatibility properties, non-cytotoxicity and cell migration and proliferation promoting activities, which met the requirements for wound dressings. Then, the in vivo cutaneous wound healing effect of OPS-based hydrogel was investigated using an alloxan-induced diabetic rat model, and results showed that it significantly accelerated the wound healing process by acting in the acceleration of the recovery of the dermis and inducing more blood vessels formation and tissue granulation. Overall, these results provide new insights into the development of a promising and effective okra pectin-based hydrogel for the treatment of chronic diabetic wounds. PY 2023 PD JAN SO European Polymer Journal SN 0014-3057 PU Elsevier BV VL 183 UT 000906803800001 DI 10.1016/j.eurpolymj.2022.111763 ID 92292 ER EF