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  • Title: In vitro antibacterial activity and beta-lactamase stability of SCE-129, a new cephalosporin.
    Author: Neu HC, Fu KP.
    Journal: Antimicrob Agents Chemother; 1979 May; 15(5):646-50. PubMed ID: 316683.
    Abstract:
    SCE-129 [3-4-carbamoyl-1-pyridiniomethyl-7beta- (d-alpha-sulfophenylacetamido)-ceph-3-em-4-carboxylate] is a cephalosporin that inhibits Pseudomonas aeruginosa and Staphylococcus aureus. SCE-129 is tenfold more active than carbenicillin in inhibiting P. aeruginosa. SCE-129 has poor activity against Enterobacteriaceae compared with other cephalosporins and is 16-fold less active than the cephalosporins against streptococci. The activity of SCE-129 does not correlate with beta-lactamase stability, although SCE-129 is resistant to hydrolysis by gram-positive and gram-negative bacteria. The compound does not inhibit the hydrolysis of other cephalosporins. Although SCE-129 acts synergistically with gentamicin to inhibit some Pseudomonas, this cannot be predicted based on knowledge of resistance to one or more compounds.
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