Qin Tiansheng, Huang Xiande, Zhang Qianqian, Chen Fan, Zhu Jiaojiao, Ding Yaoyao
The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), West Donggang Road 204, Lanzhou, 730000, People's Republic of China.
Amino Acids. 2023 Apr;55(4):499-507. doi: 10.1007/s00726-023-03243-y. Epub 2023 Jan 30.
During trauma and surgery, bleeding is a major concern. One of the crucial strategies for hemostasis is the use of biological hemostatic material. Herein, we reported an amino acid-based hydrogel FmocF-ADP hydrogel, which consisted of N-[(9H-fluoren-9-ylmethoxy) carbonyl]-3-phenyl-L-alanine (FmocF) and adenosine diphosphate (ADP) sodium solution. The hydrogel was created by FmocF self-assembling to nanofiber in ADP sodium solution and then cross-linking to hydrogel. FmocF-ADP hydrogel showed good in vitro coagulation activity as measured by whole blood clotting assays, platelet clotting assays, platelet activation assays, and platelet adhesion assays. Further, it was noted to reveal an exceptional in vivo hemostatic effect in a mouse liver bleeding model. Together with the previous report of the good biocompatibility and antimicrobial activity of FmocF hydrogel, our study would extend the biomedical application of FmocF hydrogel. In conclusion, the present study would provide a constructive strategy for the development of new antimicrobial and hemostatic materials or develop a potential hemostatic material.
在创伤和手术过程中,出血是一个主要问题。止血的关键策略之一是使用生物止血材料。在此,我们报道了一种基于氨基酸的水凝胶FmocF-ADP水凝胶,它由N-[(9H-芴-9-基甲氧基)羰基]-3-苯基-L-丙氨酸(FmocF)和二磷酸腺苷(ADP)钠溶液组成。该水凝胶是通过FmocF在ADP钠溶液中自组装成纳米纤维,然后交联形成水凝胶而制备的。通过全血凝血试验、血小板凝血试验、血小板活化试验和血小板黏附试验测定,FmocF-ADP水凝胶在体外显示出良好的凝血活性。此外,在小鼠肝出血模型中,它显示出优异的体内止血效果。结合之前关于FmocF水凝胶良好生物相容性和抗菌活性的报道,我们的研究将扩展FmocF水凝胶的生物医学应用。总之,本研究将为新型抗菌和止血材料的开发提供建设性策略,或开发一种潜在的止血材料。