Na + /Glutamine (Asparagine) Cotransport by Staphylococcus lugdunensis and Corynebacterium amycolatum

Na(+)/glutamine (asparagine) cotransport by Staphylococcus lugdunensis and Corynebacterium amycolatum.

Staphylococcus lugdunensis and Corynebacterium amycolatum each have a Na(+)/glutamine cotransporter that displays an ordered reaction sequence at the extracellular surface, with sodium binding (K(m) of 6.5 mM) before glutamine (K(m) of 50 microM). Asparagine is low-affinity substrate (K(m) approximately 1 mM) for each system.

Nosocomial Endocarditis Caused by Corynebacterium amycolatum and Other Nondiphtheriae Corynebacteria

The nondiphtheriae corynebacteria are uncommon but increasingly recognized as agents of endocarditis in patients with underlying structural heart disease or prosthetic-valves. We describe three cases of nosocomial endocarditis caused by nondiphtheriae corynebacteria, including the first reported case of Corynebacterium amycolatum, endocarditis. These all occurred in association with indwelling ...

Acute-onset endophthalmitis caused by Staphylococcus lugdunensis

Purpose To report a series of patients with acute-onset bacterial endophthalmitis caused by culture proven Staphylococcus lugdunensis, and to characterize clinical outcomes and microbiologic susceptibilities of this organism. Observations The study included six eyes of 6 patients. The etiologies included cataract surgery (3), open globe injury (2), and intravitreal injection (1). Isolates of ...

Acute postoperative endophthalmitis caused by Staphylococcus lugdunensis.

Acute postoperative endophthalmitis caused by Staphylococcus lugdunensis is infrequently reported in clinical studies. Five cases of acute postcataract surgery endophthalmitis caused by S. lugdunensis were taken from a multicenter prospective study conducted in four university-affiliated hospitals in France (2004 to 2005). These cases were characterized by severe ocular inflammation occurring w...

[Septic arthritis caused by Staphylococcus lugdunensis].