Scrub typhus is a zoonosis caused by Orientia tsutsugamushi (O. tsutsugamushi) occurring mainly in autumn in Korea. The need of new antibiotics has arisen with a report on strains resistant to antibiotics and chronic infection. This study aims to identify susceptibility of tigecycline in-vitro as a new therapeutic option for O. tsutsugamushi. Antibacterial activity of tigecycline against the O. tsutsugamushi was compared with doxycycline using flow cytometry assay. The inhibitory concentration 50 (IC₅₀) was 3.59×10⁻³ μg/mL in doxycycline-treated group. Whereas in 0.71×10⁻³ μg/mL tigecycline-treated group. These findings indicate that tigecycline may be a therapeutic option for the treatment of scrub typhus.
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http://dx.doi.org/10.3349/ymj.2016.57.4.1034 | DOI Listing |
Phytomedicine
December 2024
College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, PR China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, Henan Province, PR China; Henan Province Key Laboratory of Animal Food Pathogens SurveillancePR China. Electronic address:
Background: Tigecycline is one of the few effective treatments for multidrug-resistant bacteria. However, the recent emergence and spread of high-level tigecycline resistance in Enterobacteriaceae have significantly limited its clinical use. To combat this challenge, combining antibiotics with adjuvants has emerged as a promising strategy.
View Article and Find Full Text PDFPoult Sci
December 2024
Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu Province, PR China. Electronic address:
J Antibiot (Tokyo)
December 2024
Department of Respiratory Medicine, An Qiu People's Hospital, An Qiu, China.
Therapeutic options for carbapenem-resistant Acinetobacter baumannii (CA-AB) are quite limited. Cefiderocol, a novel siderophore cephalosporin, has shown potent in vitro activity against CR-AB, and new tetracycline analogues such as eravacycline and omadacycline have been available in recent years. However, the synergism of cefiderocol with tetracycline analogues against CR-AB has not been well investigated.
View Article and Find Full Text PDFCureus
November 2024
Microbiology, Kalinga Institute of Medical Sciences, Bhubaneswar, IND.
Background And Objectives: Stroke-associated pneumonia (SAP) is the aftermath of aspiration of oropharyngeal secretions or stomach content. Mechanical ventilation and lowered immunity and consciousness facilitate the etiopathogenesis of SAP. Antibiotic prophylaxis and repeated culture and sensitivity testing dampen the drug susceptibility patterns of the pathogens.
View Article and Find Full Text PDFFront Cell Infect Microbiol
December 2024
Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, China.
Ceftazidime-avibactam (CZA) is one of the effective antibiotics used for the treatment of carbapenem-resistant (CRKP) infections, but its resistance rate has increased recently. Previous studies have focused on the mechanisms of CZA resistance, while its heteroresistance in CRKP remains poorly understood. This study aimed to investigate the characteristics and mechanisms of CZA heteroresistance in CRKP isolates.
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