Clearance of Intravitreal Daptomycin in Uveitis-Induced Rabbit Model
Küçük Resim Yok
Tarih
2015
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Purpose: To investigate the elimination rate of daptomycin after intravitreal injection in uveitis-induced rabbits. Materials and methods: Intravitreal injection of the single dose of 200 mu g/0.05mL daptomycin was administered to rabbits starting 24 h after induction of uveitis by an intravitreal endotoxin injection. Aqueous humor and vitreous humor samples of eight eyes per time point were collected at selected time intervals (1, 3, 6, 24, 48, 72 and 96 h), and the in vitreous half-life was calculated. Daptomycin concentrations in vitreous and aqueous humor were assayed with high-performance liquid chromatography. Results: The vitreous concentration was noted to decline slowly with time. The mean vitreous concentration was 23.25 +/- 10.99 mu g/mL and 11.10 +/- 3.33 mu g/mL at 96 h in inflamed and normal eyes, respectively. The vitreous daptomycin concentration showed an exponential decay with a half-life of 25.67 h in normal eyes and 34.6 h in inflamed eyes. The aqueous levels of daptomycin in normal eyes were low but remained significantly higher than those of inflamed eyes. Conclusions: Given that the injected dose corresponds to several times the minimum inhibitory concentrations of organisms most involved in endophthalmitis, and that therapeutic levels are present up to 96 h after injection, intravitreal daptomycin should be considered for the treatment of endophthalmitis caused by Gram-positive bacteria.
Açıklama
Anahtar Kelimeler
Antibiotic Resistance, Clearance, Daptomycin, Endophthalmitis, Liquid Chromatography
Kaynak
Current Eye Research
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
40
Sayı
6
