产品
编 号:F041616
分子式:C19H22FN3O4
分子量:375.39
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500mg
320
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1g
400
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5g
784
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生物活性:
Gatifloxacin (AM-1155; BMS-206584; PD135432) is a potent fluoroquinolone antibiotic with broad-spectrum antibacterial activity. Gatifloxacin inhibits bacterial type II topoisomerases (IC50=13.8 μg/ml for S. aureus topoisomerase IV) and E. coli DNA gyrase (IC50=0.109 μg/ml). Gatifloxacin can be used to treat bacterial conjunctivitis?in vivo.

体内研究:
Gatifloxacin (subcutaneous injection; 100 mg/kg; 3 times a day; 30 days) significantly decreases the number of lesions in mouse footpad with Nocardia brasiliensis.Animal Model:Female BALB/c mice with Nocardia brasiliensis in the right hind footpad.
Dosage:100 mg/kg
Administration:Subcutaneous injection; 3 times a day; 30 days
Result:Reduced the production of lesions in mice.

体外研究:
Gatifloxacin is against S. aureus?MS5935 topoisomerase IV, E. coli?NIHJ JC-2 DNA gyrase and HeLa cell topoisomerase II with IC50 values of 13.8 μg/ml, 0.109 μg/ml, and 265 μg/ml, respectively.Gatifloxacin is against S. aureus?MS5935 topoisomerase IV, E. coli?NIHJ JC-2 DNA gyrase and HeLa cell topoisomerase II with MIC values of 0.05 μg/ml, 0.0063 μg/ml, and 122 μg/ml, respectively.Gatifloxacin exhibits antibacterial activities for wild-type strains (MS5935, MS5952, MR5867 and MR6009) the first-, second-, third-, and fourth-step mutants with MIC values of 0.05 to 0.10 μg/ml, 0.20 μg/ml, 1.56 to 3.13 μg/ml, 1.56 to 6.25 μg/ml, and 50 to 200 μg/ml, respectively. Gatifloxacin displays the most potent activity against the second- and third-step mutants (MS5952, MR5867 and MR6009) except for the second-step mutant of strain MS5935.Gatifloxacin has potent activity against norA transformant NY12 (MIC, 0.39 μg/ml).Gatifloxacin (20-100 μM; 72 hours) significantly decreases insulin content to 60% at Day 1, and continues to be reduced to 50.1% and 44.7% at Day 3 by 20 μM and 100 μM gatifloxacin, respectively.
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