75% ethanol disinfection preserves biocompatibility and mechanical properties of swim bladder for cardiovascular applications.

IF 1.7 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL
American journal of translational research Pub Date : 2025-05-15 eCollection Date: 2025-01-01 DOI:10.62347/OVKI5914
Jia-Jun Pan, Chao Ye, Qin Li, Shi-Song Chen, Xiao-Ping Ning, Qi Yu, Bai-Ling Li, Xiao-Hong Liu, Zhi-Yun Xu
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引用次数: 0

Abstract

Objectives: To evaluate the effects of 75% ethanol on the disinfection efficacy, biocompatibility, extracellular matrix (ECM) integrity, and mechanical properties of swim bladders from Hypophthalmichthys nobilis, a promising biomaterial for cardiovascular applications.

Methods: Swim bladders were immersed in 75% ethanol for 30, 60, or 120 minutes, followed by phosphate-buffered saline (PBS) rinsing. Disinfection efficacy was assessed using bacterial cultures; cytotoxicity and blood compatibility were evaluated using CCK-8 assays and hemolysis tests. The decellularization efficiency, ECM integrity, and mechanical properties were analyzed through histological staining, DNA quantification, and uniaxial tensile test.

Results: 75% ethanol effectively disinfected the swim bladder with minimal cytotoxicity and good hemocompatibility. Histological staining demonstrated preservation of collagen fibers, elastin, and glycosaminoglycans (GAGs), indicating minimal impact on the ECM structure. The uniaxial tensile test revealed that ethanol immersion caused tissue dehydration and increased stiffness, but these effects were reversible after PBS rinsing, with mechanical properties returning to baseline. DNA content and tissue thickness normalized following PBS washing, suggesting that ethanol did not impair decellularization.

Conclusions: 75% ethanol is an effective disinfectant for swim bladder biomaterials, preserving biocompatibility, ECM structure, and mechanical properties after rinsing. These findings support the use of swim bladder-derived scaffolds in cardiovascular tissue engineering applications.

75%乙醇消毒保留生物相容性和机械性能的鱼鳔心血管应用。
目的:研究75%乙醇对大眼鱼(Hypophthalmichthys nobilis)鱼鳔消毒效果、生物相容性、细胞外基质(ECM)完整性和力学性能的影响。方法:将鱼鳔浸泡在75%乙醇中30,60或120分钟,然后用磷酸盐缓冲盐水(PBS)冲洗。采用细菌培养法评价消毒效果;采用CCK-8测定法和溶血试验评价细胞毒性和血液相容性。通过组织学染色、DNA定量和单轴拉伸试验分析脱细胞效率、ECM完整性和力学性能。结果:75%乙醇对鱼鳔消毒效果好,细胞毒性小,血液相容性好。组织学染色显示保存了胶原纤维、弹性蛋白和糖胺聚糖(GAGs),表明对ECM结构的影响很小。单轴拉伸试验表明,乙醇浸泡会导致组织脱水并增加硬度,但这些影响在PBS冲洗后是可逆的,机械性能恢复到基线。PBS洗涤后,DNA含量和组织厚度归一化,表明乙醇不会损害脱细胞作用。结论:75%乙醇是鱼鳔生物材料的有效消毒剂,冲洗后可保持生物相容性、ECM结构和力学性能。这些发现支持了游泳膀胱衍生支架在心血管组织工程中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
American journal of translational research
American journal of translational research ONCOLOGY-MEDICINE, RESEARCH & EXPERIMENTAL
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