Vitamin E incorporated in Carboxymethyl Cellulose-Gelatin HydrogelIncreases Wound Healing

Document Type : Original Article

Authors
1 Department of Clinical Biochemistry, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
2 Hyperlipidemia Research Center, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
3 Department of Pharmaceutics, Faculty of Pharmacy, Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
4 Regenerative Medicine Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
Abstract
Improving wound care products to facilitate effective skin repair is very important.
Hydrogels are promising polymer
-based dressings that enhance wound healing. Vitamin E
can improve skin injuries by increasing antioxidant capacity. This study aimed to construct

an innovative hydrogel from carboxymethyl cellulose (CMC) and gelatin (Gel) co
ntaining
vitamin E to enhance wound healing.

Five unique hydrogel formulations were constructed by combination of CMC
-Gel and 25,
50, 100, and 200 µL/mL of Vitamin E. Structural characteristics of hydrogels were assessed

using scanning electron microscopy
(SEM) and Fourier-transform infrared spectroscopy
(FTIR). Biochemical properties of hydrogels, including swelling, weight loss, pH values,

and blood compatibility, were evaluated by specific methods. The cytotoxicity effects of

hydrogels on the NIH
-3T3 fibroblasts were determined by MTT assay. The therapeutic
potential of the hydrogels was investigated using a full
-thickness wound model in Wistar
rats. The constructed CMC
-Gel-Vit E hydrogel had a porous structure characterized by
interconnected voids measur
ing 73.15±9.61 µm, which is favorable for promoting cell
migration. The cytotoxicity results showed no toxicity
effects of hydrogels with and without
VitE 100 µL/mL, also a survival rate of over 120% in cells after 72 h. In vivo data showed

the CMC
-Gel-Vit E hydrogel (91.36±8.23%) significantly increased the percentage of
wound closure and re
-epithelialization compared to the control group (68.31±13.59%).
The results highlight the considerable potential of the CMC
-Gel-VitE hydrogel as a viable
option for sk
in regeneration and wound healing. This hydrogel exhibits substantial promise
for use in clinical and therapeutic interventions.

Keywords:
Skin Regeneration, Hydrogel dressing, NIH 3T3 Cells, Tocopherols,
Biopolymer
Keywords