Page 85 - 《中国药房》2023年20期

头花蓼纳米纤维功能敷料的药效评价
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吕元菊 ，吴文丽，刘泽梅，郑光艳，王立红，车 鑫（贵州中医药大学药学院，贵阳 550025）
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中图分类号 R943；R965 文献标志码 A 文章编号 1001-0408（2023）20-2507-06
DOI 10.6039/j.issn.1001-0408.2023.20.11

摘 要 目的 评价头花蓼纳米纤维功能敷料（P-PVP-PCL）的药效。方法 利用静电纺丝技术制备P-PVP-PCL，观察其微观形貌；
考察P-PVP-PCL的抑菌活性、抗氧化活性和对小鼠成纤维L929细胞存活率、黏附性及迁移率的影响。通过建立大鼠背部皮肤伤
口模型，考察医用纱布敷料、空白纳米纤维敷料（PVP-PCL）和P-PVP-PCL对创面愈合率的影响，观察创面组织病变和胶原纤维沉
积情况，以及创面组织中血小板内皮细胞黏附分子1（CD31）阳性血管数量和转化生长因子β（TGF-β）蛋白表达。结果 制得的P-
PVP-PCL表面光滑，断面处可见双层结构，对金黄色葡萄球菌和大肠埃希菌的抑制率分别为（98.88±0.66）%、（94.75±1.41）%，抗
氧化活性为（83.69±1.56）%，且P-PVP-PCL组的细胞活性均显著高于对照组和PVP-PCL组（P＜0.05）。与医用纱布敷料相比，P-
PVP-PCL更有利于L929细胞黏附；在48 h时，该组的细胞划痕已基本愈合。与医用纱布敷料组比较，PVP-PCL组和P-PVP-PCL
组的大鼠创面愈合率均显著升高（P＜0.05）。干预第 14 天时，P-PVP-PCL 组创面已基本愈合，创面组织中胶原纤维排列相对整
齐、密度相对均匀；CD31阳性血管数量和TGF-β蛋白表达与干预第7天比较有下降趋势，其中CD31阳性血管数量显著低于医用
纱布敷料组和 PVP-PCL 组（P＜0.05），TGF-β 蛋白表达显著高于医用纱布敷料组和 PVP-PCL 组（P＜0.05）。结论 P-PVP-PCL 在
体外具有良好的抗菌和抗氧化活性，能够促进L929细胞的增殖、黏附和迁移；在体内能够促进大鼠伤口愈合。
关键词 头花蓼；伤口敷料；静电纺丝；药效评价；抗菌；抗氧化；创面愈合

Pharmacodynamic evaluation of Polygonum capitatum nanofiber functional dressing

LYU Yuanju，WU Wenli，LIU Zemei，ZHENG Guangyan，WANG Lihong，CHE Xin（School of Pharmacy，
Guizhou University of Traditional Chinese Medicine，Guiyang 550025，China）

ABSTRACT OBJECTIVE To evaluate the efficacy of the functional dressing of Polygonum capitatum nanofibers （P-PVP-PCL）.
METHODS P-PVP-PCL were prepared by electrospinning technology， and the microstructure of P-PVP-PCL was observed. The
antibacterial activity and antioxidant activity of P-PVP-PCL and its effects on the survival rate， adhesion and migration rate of
mouse fibroblast L929 cells were investigated. The effects of medical gauze dressing， blank nanofiber dressing （PVP-PCL） and P-
PVP-PCL on the healing rate of the wound were investigated by establishing the back skin wound model of rats. The pathological
changes of the wound tissue and collagen fiber deposition were observed， as well as the number of platelet endothelial cell adhesion
molecule-1 （CD31） positive blood vessels and the expression of transforming growth factor-β （TGF-β） protein in wound tissue.

RESULTS P-PVP-PCL had a smooth surface and a double-layer structure at the cross-section. The inhibition rates of P-PVP-PCL
against Staphylococcus aureus and Escherichia coli were （98.88±0.66）% and （94.75±1.41）% ， respectively. The antioxidant
activity of P-PVP-PCL was （83.69±1.56）%， and the cell activity of the P-PVP-PCL group was significantly higher than those of
the control group and PVP-PCL group （P＜0.05）. Compared with medical gauze dressings， P-PVP-PCL was more conducive to
L929 cell adhesion； at 48 hours， the cell scratches in this group had basically healed. Compared with the medical gauze dressing
group， the wound healing rates of the PVP-PCL group and the P-PVP-PCL group were significantly increased （P＜0.05）. On the
14th day of intervention， the wounds in the P-PVP-PCL group had basically healed， there was no dermal necrosis in the wound
tissue， and the collagen fibers were arranged relatively neatly and the density was relatively uniform. The number of CD31 positive
blood vessels and the expression of TGF-β protein showed a downward trend compared with the 7th day of intervention， and the
number of CD31 positive blood vessels was significantly lower than those of the medical gauze dressing group and PVP-PCL group
（P＜0.05）， but the protein expression of TGF- β was
Δ 基金项目 贵州省中医药管理局中医药、民族医药科学技术研
究课题（No.QZYY-2020-039） significantly higher than those of the medical gauze dressing
＊第一作者 硕士。研究方向：中药、民族药的新技术与新剂型。 group and the PVP-PCL group （P＜0.05）. CONCLUSIONS
E-mail：1141702766@qq.com
P-PVP-PCL has good antibacterial and antioxidant activity in
# 通信作者 副教授，博士。研究方向：新药开发、新型药用材料。
E-mail：444096585@qq.com vitro， and can promote the proliferation， adhesion and

中国药房 2023年第34卷第20期 China Pharmacy 2023 Vol. 34 No. 20 · 2507 ·