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Safety Considerations for Lyophilized Human Amniotic Membrane Impregnated with Colistin and Silver Nanoparticles
Applied Biochemistry and Biotechnology ( IF 3.1 ) Pub Date : 2023-07-07 , DOI: 10.1007/s12010-023-04618-3
Nadia Wali 1, 2 , Nadia Wajid 3 , Aroosh Shabbir 1 , Fatima Ali 1 , Saba Shamim 1 , Nasir Abbas 4 , Syed Zeeshan Haider Naqvi 1
Affiliation  

Lyophilized human amniotic membrane (HAM) and silver nanoparticles (AgNPs) have multispectral applications as a biological dressing. The present study focuses on the safety aspects of HAM coated with colistin and AgNPs (HACoN) dressing in relation to its structural and hematological changes. Four dressing groups were designed for the study, HAM, HAM coated with colistin (HACo), HAM coated with AgNPs (HAN), and HAM coated with colistin (HACo) and HACoN. Scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR) were utilized for constitutional analysis. Biological safety was checked by applying HAM of all groups on open excisional burn wounds on Sprague–Dawley rats for 21 days. The skin, kidneys, liver, and spleen were removed, and histological analysis was performed for detailed structural analysis. Oxidative stress was assessed using homogenate from newly generated skin. No structural or biochemical change was observed in any of the study groups as observed by SEM and FTIR. After 21 days of grafting, wounds were healed properly with normal skin, and no anomaly was observed in related to kidneys, spleen, and liver. Some of antioxidant enzymes were increased, while malondialdehyde which is a reactive oxygen species was reduced in the skin tissue homogenate of HACoN group. Impregnation of colistin and AgNPs in combination on HAM has no effects on hematological and structural constitution of HAM. It leaves no obvious change in vital organs of rats and improves oxidative stress and inflammation. Hence, it can be claimed that HACoN is a biologically safe antibacterial dressing.



中文翻译:

用粘菌素和银纳米颗粒浸渍的冻干人羊膜的安全注意事项

冻干人羊膜 (HAM) 和银纳米颗粒 (AgNP) 作为生物敷料具有多光谱应用。本研究重点关注涂有粘菌素和 AgNPs (HACoN) 的 HAM 敷料与其结构和血液学变化相关的安全性。本研究设计了四个敷料组:HAM、涂有粘菌素的 HAM (HACo)、涂有 AgNP 的 HAM (HAN) 以及涂有粘菌素 (HACo) 和 HACoN 的 HAM。利用扫描电子显微镜(SEM)和傅里叶变换红外光谱(FTIR)进行成分分析。通过将所有组的 HAM 应用于 Sprague-Dawley 大鼠的开放性切除烧伤创面 21 天来检查生物安全性。去除皮肤、肾脏、肝脏和脾脏,并进行组织学分析以进行详细的结构分析。使用新生皮肤的匀浆评估氧化应激。通过 SEM 和 FTIR 观察,在任何研究组中均未观察到结构或生化变化。移植21天后,伤口愈合良好,皮肤正常,肾、脾、肝未见异常。HACoN组皮肤组织匀浆中一些抗氧化酶增加,而活性氧丙二醛减少。粘菌素和AgNPs联合浸渍HAM对HAM的血液学和结构组成没有影响。它对大鼠的重要器官没有明显的变化,并且改善了氧化应激和炎症。因此,可以说HACoN是一种生物安全的抗菌敷料。通过 SEM 和 FTIR 观察,在任何研究组中均未观察到结构或生化变化。移植21天后,伤口愈合良好,皮肤正常,肾、脾、肝未见异常。HACoN组皮肤组织匀浆中一些抗氧化酶增加,而活性氧丙二醛减少。粘菌素和AgNPs联合浸渍HAM对HAM的血液学和结构组成没有影响。它对大鼠的重要器官没有明显的变化,并且改善了氧化应激和炎症。因此,可以说HACoN是一种生物安全的抗菌敷料。通过 SEM 和 FTIR 观察,在任何研究组中均未观察到结构或生化变化。移植21天后,伤口愈合良好,皮肤正常,肾、脾、肝未见异常。HACoN组皮肤组织匀浆中一些抗氧化酶增加,而活性氧丙二醛减少。粘菌素和AgNPs联合浸渍HAM对HAM的血液学和结构组成没有影响。它对大鼠的重要器官没有明显的变化,并且改善了氧化应激和炎症。因此,可以说HACoN是一种生物安全的抗菌敷料。伤口愈合良好,皮肤正常,肾、脾、肝未见异常。HACoN组皮肤组织匀浆中一些抗氧化酶增加,而活性氧丙二醛减少。粘菌素和AgNPs联合浸渍HAM对HAM的血液学和结构组成没有影响。它对大鼠的重要器官没有明显的变化,并且改善了氧化应激和炎症。因此,可以说HACoN是一种生物安全的抗菌敷料。伤口愈合良好,皮肤正常,肾、脾、肝未见异常。HACoN组皮肤组织匀浆中一些抗氧化酶增加,而活性氧丙二醛减少。粘菌素和AgNPs联合浸渍HAM对HAM的血液学和结构组成没有影响。它对大鼠的重要器官没有明显的变化,并且改善了氧化应激和炎症。因此,可以说HACoN是一种生物安全的抗菌敷料。粘菌素和AgNPs联合浸渍HAM对HAM的血液学和结构组成没有影响。它对大鼠的重要器官没有明显的变化,并且改善了氧化应激和炎症。因此,可以说HACoN是一种生物安全的抗菌敷料。粘菌素和AgNPs联合浸渍HAM对HAM的血液学和结构组成没有影响。它对大鼠的重要器官没有明显的变化,并且改善了氧化应激和炎症。因此,可以说HACoN是一种生物安全的抗菌敷料。

更新日期:2023-07-08
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