Kürekci Cemil, Ünaldı Özlem, Şahin Seyda, García-Meniño Isidro, Hammerl Jens Andre
Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay 31060, Türkiye.
Department of Microbiology Reference Laboratories, General Directorate of Public Health, Ministry of Health, Ankara 06430, Türkiye.
Antibiotics (Basel). 2023 Dec 21;13(1):14. doi: 10.3390/antibiotics13010014.
The interrelationship between human, animal and environmental sectors leads to the spread of antibiotic resistance due to selective pressures, evolutionary traits and genomic evolution. In particular, the frequent use of antibiotics in livestock inevitably influences the emergence of specific resistance determinants in human strains, associated with reduced treatment options in clinical therapy. In this study, ESBL-producing strains isolated from chicken meat samples were evaluated for public health implications in Türkiye. Whole-genome sequencing was used for genetic dissection and phylogenetic comparison of their genomes. The isolates were assigned to four MLST types (ST147, ST37, ST2747 and ST219); two of them were found to represent the ST147 clone associated with severe human infections worldwide. In addition to cephalosporins, high resistance levels to quinolones/fluoroquinolones were identified phenotypically, caused by acquired resistance genes and chromosomal point variations. One isolate was also found to carry the ∆1 efflux transporter gene, which confers tolerance to quaternary ammonium compounds. The detection of virulence genes (i.e., that coding for enterobactin) associated with the pathogenicity of suggests a public health impact. Thus, comprehensive information on the occurrence and impact of from livestock is needed to derive appropriate management strategies for consumer protection. In this study, it was shown that poultry meat serves as a reservoir of clinically emerging multidrug-resistant high-risk clones.
人类、动物和环境部门之间的相互关系,由于选择压力、进化特征和基因组进化,导致了抗生素耐药性的传播。特别是,家畜中抗生素的频繁使用不可避免地影响了人类菌株中特定耐药决定因素的出现,这与临床治疗中治疗选择的减少有关。在本研究中,对从鸡肉样本中分离出的产超广谱β-内酰胺酶(ESBL)菌株在土耳其的公共卫生影响进行了评估。全基因组测序用于对其基因组进行遗传剖析和系统发育比较。分离株被分为四种多位点序列分型(ST147、ST37、ST2747和ST219);其中两种被发现代表与全球严重人类感染相关的ST147克隆。除头孢菌素外,通过表型鉴定发现对喹诺酮类/氟喹诺酮类药物具有高耐药水平,这是由获得性耐药基因和染色体点变异引起的。还发现一株分离株携带∆1外排转运蛋白基因,该基因赋予对季铵化合物的耐受性。与致病性相关的毒力基因(即编码肠杆菌素的基因)的检测表明存在公共卫生影响。因此,需要有关家畜中[相关内容未明确]的发生情况和影响的全面信息,以制定适当的消费者保护管理策略。在本研究中,表明禽肉是临床上出现的多重耐药高风险克隆的储存库。