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用紫外线C (UV-C) 光治疗狗角膜感染性角膜炎的新方法

Bactelius Turicea¹, Dipak K Sahoo¹, Rachel A Allbaugh¹

¹Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.

Veterinary ophthalmology

|August 9, 2024

概括

紫外线C (UV-C) 光疗法在治疗犬类细菌性角膜炎方面表现有前途. 一次15秒的紫外线暴露有效地杀死了体外细菌,并减少了ex vivo犬类角膜的表面感染.

科学领域:

兽医眼科医生兽医眼科医生
微生物学微生物学
照相医疗 (photomedicine) 是一种医学技术.

背景情况:

细菌性角膜炎是狗视力丧失的重要原因之一.
目前的治疗方法可能受到抗生素耐药性和可访问性的限制.
有效治疗需要新的治疗方法.

研究的目的:

评估275nm紫外线C (UV-C) 光对治疗犬类角膜中的细菌角膜炎的治疗疗效.
为了评估在这个应用中使用一个实惠的,修改的手持式UV-C设备.

主要方法:

在体外实验中测试了UV-C疗法 (UVCT) 对抗Staphylococcus,Streptococcus和Pseudomonas spp. 使用不同的距离,剂量和持续时间.
在ex vivo实验中使用了用UVCT处理的注射犬类角膜按 (表面和深层).
使用光标记物 (STYO9-PI) 和共聚焦显微镜评估了细菌活力.

主要成果:

在实验室中,UVCT在所有测试的分离物体中,在10毫米的距离上,通过一次15秒的剂量,实现了100%的杀菌效果.
活体研究表明,表面细菌负载显著降低.
在ex vivo模型中,UVCT对深层 stromal 感染的疗效是不确定的.

结论:

紫外线-C疗法显示出治疗细菌角膜炎的显著治疗潜力,这种炎症是由狗角膜中常见的隔离物引起的.
在体外和体外模型中,一次15秒的紫外线暴露显示出有效性.
需要进一步的安全研究和临床试验才能将这种有前途的治疗方法转化为兽医实践.

关键词:

紫外线和紫外线-C光.细菌细菌细菌是一种细菌.细菌的耐药性细菌的耐药性角膜紫外线-C疗法传染性角质炎是一种传染性角质炎.肌层的病变是什么?

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