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短疗程头孢曲松治疗C3H小鼠伯氏疏螺旋体感染的疗效

Efficacy of short-course ceftriaxone therapy for Borrelia burgdorferi infection in C3H mice.

作者信息

Pavia Charles, Inchiosa Mario A, Wormser Gary P

机构信息

Division of Infectious Diseases, Department of Medicine, New York Medical College, Valhalla, New York 10595, USA.

出版信息

Antimicrob Agents Chemother. 2002 Jan;46(1):132-4. doi: 10.1128/AAC.46.1.132-134.2002.

Abstract

Ceftriaxone is highly effective clinically in patients with Lyme disease. We studied a representative invasive human isolate of Borrelia burgdorferi for which the MBC of ceftriaxone was 0.050 microg/ml. A once-per-day dosage regimen of ceftriaxone (50 mg/kg/dose) administered intramuscularly for 5 days was 100% effective in sterilizing tissue samples of C3H mice infected with this strain of B. burgdorferi, regardless of whether the mice were being treated concomitantly with a corticosteroid. Administration of the same five doses of ceftriaxone at 6-h intervals over just 24 h was also 100% effective. These experiments suggest that shorter courses of antibiotics than those currently recommended should be considered for study in patients with early uncomplicated Lyme disease.

摘要

头孢曲松在莱姆病患者的临床治疗中具有高效性。我们研究了一株具有代表性的侵袭性人类伯氏疏螺旋体分离株,其头孢曲松的最低杀菌浓度为0.050微克/毫升。对感染该株伯氏疏螺旋体的C3H小鼠,每天一次肌肉注射头孢曲松(50毫克/千克/剂量),连续注射5天,无论小鼠是否同时接受皮质类固醇治疗,在使组织样本除菌方面均有100%的效果。在仅仅24小时内每隔6小时给予相同的五剂头孢曲松,也有100%的效果。这些实验表明,对于早期无并发症的莱姆病患者,应考虑研究比目前推荐疗程更短的抗生素治疗方案。

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