Biomaterial Database

Intraphagocytic activity of erythromycin, roxithromycin and azithromycin. 1990

D Milatovic

Department of Medical Microbiology, Technical University Munich, FRG.

The intraphagocytic activity of erythromycin, roxithromycin and azithromycin against phagocytosed Staphylococcus aureus was compared. Erythromycin and roxithromycin both acted bacteriostatically at concentrations corresponding to 10 X MIC. Azithromycin, however, did not prevent intracellular proliferation of the staphylococci. On comparison of the pH dependency of the antibacterial activity of the three drugs, azithromycin was found to be inactivated earlier in an acidic milieu.

UI	MeSH Term	Description	Entries
D009504	Neutrophils	Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes.	LE Cells,Leukocytes, Polymorphonuclear,Polymorphonuclear Leukocytes,Polymorphonuclear Neutrophils,Neutrophil Band Cells,Band Cell, Neutrophil,Cell, LE,LE Cell,Leukocyte, Polymorphonuclear,Neutrophil,Neutrophil Band Cell,Neutrophil, Polymorphonuclear,Polymorphonuclear Leukocyte,Polymorphonuclear Neutrophil
D004917	Erythromycin	A bacteriostatic antibiotic macrolide produced by Streptomyces erythreus. Erythromycin A is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.	Erycette,Erymax,Erythromycin A,Erythromycin C,Erythromycin Lactate,Erythromycin Phosphate,Ilotycin,T-Stat,Lactate, Erythromycin,Phosphate, Erythromycin,T Stat,TStat
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013211	Staphylococcus aureus	Potentially pathogenic bacteria found in nasal membranes, skin, hair follicles, and perineum of warm-blooded animals. They may cause a wide range of infections and intoxications.
D015575	Roxithromycin	Semisynthetic derivative of erythromycin. It is concentrated by human phagocytes and is bioactive intracellularly. While the drug is active against a wide spectrum of pathogens, it is particularly effective in the treatment of respiratory and genital tract infections.	Biaxsig,Claramid,Infectoroxit,MTW-Roxithromycin,Macrosil,RU 28965,RU 965,RU-28965,RU-965,Rotesan,Rotramin,Roxi 1A Pharma,Roxi Basics,Roxi TAD,Roxi-Puren,Roxi-Q,Roxi-Wolff,Roxi-paed 1A Pharma,Roxi-saar,Roxibeta,Roxigamma,Roxigrün,Roxihexal,Roxithro-Lich,Rulid,Rulide,roxi von ct,roxidura,RU28965,RU965
D017963	Azithromycin	A semi-synthetic macrolide antibiotic structurally related to ERYTHROMYCIN. It has been used in the treatment of Mycobacterium avium intracellulare infections, toxoplasmosis, and cryptosporidiosis.	Azadose,Azithromycin Dihydrate,Azithromycin Monohydrate,Azitrocin,Azythromycin,CP-62993,Goxal,Sumamed,Toraseptol,Ultreon,Vinzam,Zentavion,Zithromax,Zitromax,CP 62993,CP62993,Dihydrate, Azithromycin,Monohydrate, Azithromycin