Different patterns of resistance against commonly used macrolide, lincosamide, and streptogramin antibiotics were found in Clostridium perfringens of animal origin. The patterns were designated as (i) macrolide-lincosamide-streptogramin group B generalized resistance, (ii) macrolide-lincosamide generalized resistance, (iii) macrolide-lincosamide inducible resistance, and (iv) macrolide-lincosam...

An unusual set of reduced macrolide antibiotics was discovered by combination of organic synthesis and a biosynthetic approach using the unique metabolic diversity of Streptomyces venezuelae; two unnatural 16-membered ring macrolides are also created by employing this bio-catalyst.

As an approach to the search for new potentially useful macrolide antibiotics, we explored the minor components of albocycline (ALB) from the culture broth of Streptomyces bruneogriseus. Eight minor components were isolated and their structures were confirmed as 1 approximately 8. Unexpectedly, they were not glycosidic compounds but only oxidation or reduction products of ALB. Three or four of ...

OBJECTIVES To evaluate therapy for Mycoplasma genitalium infection with doxycycline or azithromycin 1 g compared to five days of azithromycin (total dose 1.5 g). METHODS A retrospective case study was performed among patients attending the STD-clinic in Falun, Sweden 1998-2005. All patients with a positive PCR test for M. genitalium were routinely offered a test of cure (toc). Response to dox...

Early-life antibiotic use is associated with increased risk for metabolic and immunological diseases, and mouse studies indicate a causal role of the disrupted microbiome. However, little is known about the impacts of antibiotics on the developing microbiome of children. Here we use phylogenetics, metagenomics and individual antibiotic purchase records to show that macrolide use in 2-7 year-old...

Since the discovery of erythromycin A (1; Fig. 1)1} more than 25 biosynthetic representatives of this family of 14-membered macrolide antibiotics have been reported. Most of erythromycins are produced by the genera Saccharopolyspora and Streptomyces but few by Nocardia strains2). Erythromycin E (2; Fig. 1) is distinguishable from all the other known macrolide antibiotics and other microbial met...

In a survey of microbial systems capable of generating unusual metabolite structural variability, Streptomyces venezuelae ATCC 15439 is notable in its ability to produce two distinct groups of macrolide antibiotics. Methymycin and neomethymycin are derived from the 12-membered ring macrolactone 10-deoxymethynolide, whereas narbomycin and pikromycin are derived from the 14-membered ring macrolac...