含蜂胶提取物水凝胶的表征、生物相容性及抗氧化活性作为伤口愈合替代治疗方法的研究

Characterization, Biocompatibility and Antioxidant Activity of Hydrogels Containing Propolis Extract as an Alternative Treatment in Wound Healing.

作者信息

Ferreira Lindalva Maria de Meneses Costa, Modesto Yuri Yoshioka, Souza Poliana Dimsan Queiroz de, Nascimento Fabiana Cristina de Araújo, Pereira Rayanne Rocha, Converti Attilio, Lynch Desireé Gyles, Brasil Davi do Socorro Barros, da Silva Edilene Oliveira, Silva-Júnior José Otávio Carréra, Ribeiro-Costa Roseane Maria

机构信息

Institute of Health Sciences, Federal University of Pará, Belém 66075-110, Brazil.

Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, Brazil.

出版信息

Pharmaceuticals (Basel). 2024 Apr 30;17(5):575. doi: 10.3390/ph17050575.

Abstract

Hydrogels consist of a network of highly porous polymeric chains with the potential for use as a wound dressing. Propolis is a natural product with several biological properties including anti-inflammatory, antibacterial and antioxidant activities. This study was aimed at synthesizing and characterizing a polyacrylamide/methylcellulose hydrogel containing propolis as an active ingredient, to serve as a wound dressing alternative, for the treatment of skin lesions. The hydrogels were prepared using free radical polymerization, and were characterized using scanning electron microscopy, infrared spectroscopy, thermogravimetry, differential scanning calorimetry, swelling capacity, mechanical and rheological properties, UV-Vis spectroscopy, antioxidant activity by the DPPH, ABTS and FRAP assays and biocompatibility determined in Vero cells and J774 macrophages by the MTT assay. Hydrogels showed a porous and foliaceous structure with a well-defined network, a good ability to absorb water and aqueous solutions simulating body fluids as well as desirable mechanical properties and pseudoplastic behavior. In hydrogels containing 1.0 and 2.5% propolis, the contents of total polyphenols were 24.74 ± 1.71 mg GAE/g and 32.10 ± 1.01 mg GAE/g and those of total flavonoids 8.01 ± 0.99 mg QE/g and 13.81 ± 0.71 mg QE/g, respectively, in addition to good antioxidant activity determined with all three methods used. Therefore, hydrogels containing propolis extract, may serve as a promising alternative wound dressing for the treatment of skin lesions, due to their anti-oxidant properties, low cost and availability.

摘要

水凝胶由高度多孔的聚合物链网络组成,有潜力用作伤口敷料。蜂胶是一种天然产物,具有多种生物学特性,包括抗炎、抗菌和抗氧化活性。本研究旨在合成并表征一种含有蜂胶作为活性成分的聚丙烯酰胺/甲基纤维素水凝胶,用作伤口敷料替代品,用于治疗皮肤损伤。水凝胶采用自由基聚合制备,并通过扫描电子显微镜、红外光谱、热重分析、差示扫描量热法、溶胀能力、力学和流变学性质、紫外可见光谱、DPPH、ABTS和FRAP法测定抗氧化活性以及通过MTT法在Vero细胞和J774巨噬细胞中测定生物相容性来进行表征。水凝胶呈现出多孔且叶状的结构,具有明确的网络,具有良好的吸水和模拟体液的水溶液的能力以及理想的力学性能和假塑性行为。在含有1.0%和2.5%蜂胶的水凝胶中,总多酚含量分别为24.74±1.71mg GAE/g和32.10±1.01mg GAE/g,总黄酮含量分别为8.01±0.99mg QE/g和13.81±0.71mg QE/g,此外,使用的所有三种方法测定的抗氧化活性都良好。因此,含有蜂胶提取物的水凝胶,由于其抗氧化特性、低成本和可得性,可能成为治疗皮肤损伤的一种有前景的伤口敷料替代品。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d29/11123975/8d2b4670e690/pharmaceuticals-17-00575-g001.jpg

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