Biomaterial Database

Synergy of sulbactam and ampicillin against methicillin-resistant staphylococci. 1986

N X Chin, and N M Neu, and H C Neu

Methicillin resistance in staphylococci is an increasing problem both for Staphylococcus aureus (MRSA) and Staphylococcus epidermidis (MRSE), which cause infections of the heart and after central nervous system surgery. Resistance seems to be due primarily to production of altered penicillin-binding proteins. The present study determined whether a combination of beta-lactamase inhibitor sulbactam and ampicillin or sulbactam and cefazolin would inhibit MRSA and MRSE. Sulbactam, ampicillin and cefazolin at 32 micrograms/ml did not inhibit MRSA or MRSE. At 8 micrograms/ml of each agent all isolates were inhibited. Synergy of sulbactam and ampicillin could be demonstrated against MRSA by the agar fixed ratio method, checkerboard dilution and by killing curves. This suggests that in certain situations MRSA and MRSE may be effectively eliminated by this method.

UI	MeSH Term	Description	Entries
D008712	Methicillin	One of the PENICILLINS which is resistant to PENICILLINASE but susceptible to a penicillin-binding protein. It is inactivated by gastric acid so administered by injection.	Penicillin, Dimethoxyphenyl,Methicillin Hydrate, Monosodium Salt,Methicillin Monohydrate, Monosodium Salt,Methicillin Sodium,Meticillin,Metin,Staphcillin,Dimethoxyphenyl Penicillin
D010397	Penicillanic Acid	A building block of penicillin, devoid of significant antibacterial activity. (From Merck Index, 11th ed)	Acid, Penicillanic
D010403	Penicillin Resistance	Nonsusceptibility of an organism to the action of penicillins.	Penicillin Resistances,Resistance, Penicillin,Resistances, Penicillin
D010458	Peptidyl Transferases	Acyltransferases that use AMINO ACYL TRNA as the amino acid donor in formation of a peptide bond. There are ribosomal and non-ribosomal peptidyltransferases.	Peptidyl Transferase,Peptidyl Translocase,Peptidyl Translocases,Peptidyltransferase,Transpeptidase,Transpeptidases,Peptidyltransferases,Transferase, Peptidyl,Transferases, Peptidyl,Translocase, Peptidyl,Translocases, Peptidyl
D002267	Muramoylpentapeptide Carboxypeptidase	Enzyme which catalyzes the peptide cross-linking of nascent CELL WALL; PEPTIDOGLYCAN.	Carboxypeptidase Transpeptidase,Carboxypeptidase, Muramoylpentapeptide,Transpeptidase, Carboxypeptidase
D002352	Carrier Proteins	Proteins that bind or transport specific substances in the blood, within the cell, or across cell membranes.	Binding Proteins,Carrier Protein,Transport Protein,Transport Proteins,Binding Protein,Protein, Carrier,Proteins, Carrier
D002437	Cefazolin	A semisynthetic cephalosporin analog with broad-spectrum antibiotic action due to inhibition of bacterial cell wall synthesis. It attains high serum levels and is excreted quickly via the urine.	Cephazolin,Ancef,Cefamedin,Cefamezine,Cefazolin Sodium,Cephamezine,Cephazolin Sodium,Gramaxin,Kefzol,Sodium Cephazolin,Totacef,Cephazolin, Sodium,Sodium, Cefazolin,Sodium, Cephazolin
D004357	Drug Synergism	The action of a drug in promoting or enhancing the effectiveness of another drug.	Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D006602	Hexosyltransferases	Enzymes that catalyze the transfer of hexose groups. EC 2.4.1.-.
D000667	Ampicillin	Semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic.	Penicillin, Aminobenzyl,Amcill,Aminobenzylpenicillin,Ampicillin Sodium,Ampicillin Trihydrate,Antibiotic KS-R1,Omnipen,Pentrexyl,Polycillin,Ukapen,Aminobenzyl Penicillin,Antibiotic KS R1,KS-R1, Antibiotic,Sodium, Ampicillin,Trihydrate, Ampicillin