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从狗奶中分离出来的金黄色葡萄球菌和其他引起乳腺炎的病原体的特征
Zahra Sadat Yousefsani1, Ehsan Gallehdar Kakhki2, Niloufar Tashakkori1
1Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran.
Research in veterinary science
|September 26, 2025
概括
黄金葡萄球菌是狗乳腺炎的常见原因,超过一半的分离物体表现出多种药物耐药性和生物膜形成能力. 这凸显了日常诊断的必要性,以指导有效的治疗,并改善母狗和小狗的结果.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 微生物学 微生物学
- 传染性疾病 传染性疾病
背景情况:
- 狗乳腺炎是母狗的显著炎症性乳腺疾病,经常导致新生儿死亡.
- 黄金葡萄球菌 (Staphylococcus aureus) 是一种主要的细菌病原体,涉及到狗乳腺炎病例.
研究的目的:
- 调查从狗奶中分离的金黄色葡萄球菌的抗菌素耐药性模式和生物膜形成能力.
- 评估S. aureus菌株中引起母狗乳腺炎的特定耐药基因的流行率.
主要方法:
- 细菌培养和生物化学试验用于细菌识别和抗菌素敏感性测试 (磁盘扩散方法).
- 使用 nucA 基因放大和通过 PCR 检测八个耐药基因,通过分子确认 S. aureus.
- 微板测定用于评估S. aureus分离物的生物膜产量.
主要成果:
- 黄金葡萄球菌是阳性犬乳培养物中最常见的隔离物 (55.68%).
- 超过一半 (51.02%) 的S. aureus分离物表现出多药耐药性.
- blaZ基因是检测到的最常见的耐药性基因,超过50%的分离物显示出生物膜形成能力.
结论:
- 黄金葡萄球菌 (Staphylococcus aureus) 由于其多药性耐药性和生物膜形成,在狗乳腺炎中构成重大威胁.
- 常规的细菌培养,抗微生物敏感性测试和分子诊断对于有效的治疗策略至关重要.
- 这些诊断方法对于改善受影响的母狗及其后代的治疗结果至关重要.
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