期刊
BRAZILIAN JOURNAL OF MICROBIOLOGY
卷 41, 期 3, 页码 635-642出版社
SOC BRASILEIRA MICROBIOLOGIA
DOI: 10.1590/S1517-83822010000300014
关键词
Amitriptyline hydrochloride; antimicrobial activity; non antibiotics
类别
资金
- Dr. V. Ravichandran Endowment Trust, Jadavpur University, Kolkata (Calcutta), India
The antidepressant drug amitriptyline hydrochloride was obtained in a dry powder form and was screened against 253 strains of bacteria which included 72 Gram positive and 181 Gram negative bacteria and against 5 fungal strains. The minimum inhibitory concentration (MIC) was determined by inoculating a loopful of an overnight peptone water culture of the organism on nutrient agar plates containing increasing concentrations of amitriptyline hydrochloride (0, 10 mu g/mL, 25 mu g/mL, 50 mu g/mL, 100 mu g/mL, 200 mu g/mL). Amitriptyline hydrochloride exhibited significant action against both Gram positive and Gram negative bacteria at 25-200 mu g/mL. In the in vivo studies it was seen that amitriptyline hydrochloride at a concentration of 25 mu g/g and 30 mu g/g body weight of mouse offered significant protection to Swiss strain of white mice when challenged with 50 median lethal dose (MLD) of a virulent strain of Salmonella typhimurium NCTC 74. The in vivo data were highly significant (p<0.001) according to the chi-square test.
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