Your browser doesn't support javascript.
loading
Pulsed Ultrasound-Mediated Enhancement on Transscleral and Transconjunctival Fluorescein Sodium Delivery to Rabbit Eye In Vivo.
You, Shuqi; Zhou, Hongsheng; Yang, Shicheng; Wu, Suqian; Chen, Xiangwu; Zhang, Rong; Chen, Wei; Wang, Huan; Mo, Xiaofen.
Afiliación
  • You S; Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
  • Zhou H; NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.
  • Yang S; Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China.
  • Wu S; Shanghai Acoustics Laboratory, Chinese Academy of Science, Shanghai, China.
  • Chen X; Shanghai Acoustics Laboratory, Chinese Academy of Science, Shanghai, China.
  • Zhang R; Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
  • Chen W; NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.
  • Wang H; Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China.
  • Mo X; Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
J Ocul Pharmacol Ther ; 39(2): 175-184, 2023 03.
Article en En | MEDLINE | ID: mdl-36930765
Purpose: To investigate the efficacy and safety of pulsed ultrasound (PUS) in enhancing fluorescein sodium (NaF) transport to the rabbit eye through the transscleral and transconjunctival routes in vivo. Methods: PUS and NaF were applied onto the supratemporal sclera/conjunctiva of healthy rabbit eyes. PUS (1 MHz, 2.37 W/cm2, 30% duty cycle, 5-min application time) was performed 3 times with a 5-min interval. In the same process, NaF was administered to the eye without PUS in the control. NaF concentrations in the vitreous and retina-choroid were determined by fluorescence measurement. The safety of PUS application was assessed based on temperature and intraocular pressure measurements, clinical observations, electroretinography, histology, and Terminal Deoxynucleotidyl Transferase dUTP Nick End Labeling assay. Results: In comparison to the control, higher NaF concentrations were found in the retina-choroid following transscleral (2.45-fold) and transconjunctival (2.97-fold) PUS applications (P < 0.05). NaF concentrations in the vitreous were 3.15 and 5.86 times greater in transscleral and transconjunctival PUS applications, respectively, compared with those obtained without PUS application (P < 0.05), and NaF level in the vitreous after transconjunctival PUS application was 2.61 times that of transscleral PUS application (P < 0.05). Ocular findings were transient and mild conjunctival injection, with no other structural and functional changes in PUS-treated eyes. Conclusions: PUS treatment can improve transscleral and transconjunctival delivery of NaF efficiently and safely. Transscleral and transconjunctival PUS applications offer potential clinical benefit in increasing drug penetration to the posterior segments of the eye for the noninvasive treatment of ocular diseases.
Asunto(s)
Palabras clave

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Sistemas de Liberación de Medicamentos / Fluoresceína Límite: Animals Idioma: En Revista: J Ocul Pharmacol Ther Asunto de la revista: FARMACOLOGIA / OFTALMOLOGIA / TERAPEUTICA Año: 2023 Tipo del documento: Article País de afiliación: China

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Sistemas de Liberación de Medicamentos / Fluoresceína Límite: Animals Idioma: En Revista: J Ocul Pharmacol Ther Asunto de la revista: FARMACOLOGIA / OFTALMOLOGIA / TERAPEUTICA Año: 2023 Tipo del documento: Article País de afiliación: China