Macrolides may influence the inflammatory response to an infection by mechanisms that are unrelated to their antimicrobial effect. Indeed, erythromycin and other macrolides inhibit cytokine production and induce degranulation of neutrophils in vitro. CXC chemokines are small chemotactic cytokines that specifically influence neutrophil functions. To determine the effect of a clinically relevant ...

Organic anion transporter 2 (Oat2 [SLC22A7]) is a multispecific organic anion transporter. Although several substrates of human Oat2 (hOat2) have been elucidated, a possible involvement of hOat2 in drug interaction is less defined. The purpose of this study was to investigate the interaction of theophylline with erythromycin mediated by hOat2 using a Xenopus laevis oocyte expression system. Whe...

The fermentation-inhibition (FI) test for Mycoplasma pneumoniae was performed with two strains of M. pneumoniae, one susceptible to erythromycin and one highly resistant to erythromycin with cross-resistance to other macrolide antibiotics. Serum titers in children with M. pneumoniae pneumonia who received no antibiotic were similar with the two strains. Children with atypical pneumonia with a t...

Several protein synthesis inhibitors are known to inhibit ribosome assembly. This may be a consequence of direct binding of the antibiotic to ribosome precursor particles, or it could result indirectly from loss of coordination in the production of ribosomal components due to the inhibition of protein synthesis. Here we demonstrate that erythromycin and chloramphenicol, inhibitors of the large ...

BACKGROUND During the interdigestive state in humans, erythromycin 40 mg induces a premature activity front that starts in the stomach, while erythromycin 200 mg induces a prolonged period of enhanced antral contractile activity. AIMS To study the involvement of a cholinergic pathway in the motor effects of erythromycin using the muscarinic antagonist atropine and the neural 5-HT1 receptor ag...

BACKGROUND Chronic obstructive pulmonary disease (COPD) is characterized by airway inflammation and is associated with acute exacerbations. Macrolide antibiotics have been shown to exhibit anti-inflammatory effects in some chronic airway inflammatory diseases. OBJECTIVE The aim of this study was to assess the effect of treatment with erythromycin on airway inflammation and health outcome in C...

Rosamicin is a new macrolide antibiotic produced by Micromonospora rosaria. It shares certain chemical and biological characteristics with erythromycin. Activity against gram-positive strains was assayed by broth dilution and compared to that of erythromycin and lincomycin. Rosamicin was bacteriostatic and inhibited most strains of Staphylococcus aureus, Staphylococcus epidermidis, enterococci,...

Objective: Various topical agents block UVB penetration when applied before UVB therapy. The effects of topically used erythromycin and tetracycline on narrow band UVB has not been considered yet. We investigated the effects of topically used erythromycin 2%, erythromycin 4% and tetracycline on the penetration amount of narrow band UVB. Methods: In this study 32 patients without any photodermat...

BACKGROUND & OBJECTIVES Increasing resistance to erythromycin has been observed worldwide in group C and group G streptococci (GCS/GGS). The information available from India is scanty. The aim of the study was to identify erythromycin resistant GCS/GGS isolates in Chennai, south India, and to compare erythromycin resistant genotypes with emm types. METHODS One hundred and thirty one GCS/GGS i...

Macrolide antibiotics are known to have a different proarrhythmic potential in the presence of comparable QT prolongation in the surface ECG. Because the extent of QT prolongation has been used as a surrogate marker for cardiotoxicity, we aimed to study the different electrophysiological effects of the macrolide antibiotics erythromycin, clarithromycin, and azithromycin in a previously develope...