Ultrasound-mediated transscleral delivery of macromolecules to the posterior segment of rabbit eye in vivo.

Abstract:

PURPOSE:This study aims to determine the in vivo effectiveness of low-frequency ultrasound in mediating the transport of macromolecules to the posterior segment of the eye via transscleral route. It investigates if damage is caused by ultrasound at the tested operation parameters on the posterior ocular tissues and visual function. METHODS:Ultrasound (I(SATA) = 0.12 W/cm(2), center frequency = 40 kHz, 90-second continuous wave) was applied on the sclera of New Zealand white rabbits for one to three cycles. Solution of fluorescent dextran (70 kDa) was placed above sclera during and after ultrasound application to assess transscleral transport of macromolecules. Amount of dextran delivered to vitreous was determined by detection of fluorescence. Visual function of ultrasound-treated rabbits was examined by full-field electroretinography (ffERG). The effect of ultrasound on ocular tissue structures was examined by binocular indirect ophthalmoscope (BIO) and histology. RESULTS:Repeated ultrasound resulted in increasing concentration of dextran, which was otherwise undetectable in the vitreous. Transscleral barrier against dextran transport was restored to original value at 2 weeks postultrasound treatment. Studies from ffERG suggested that electric responses from neural transmission of retinal cells are normal at 1 day, 7 days, and 14 days after ultrasound applications. BIO and histology revealed no structural abnormality in posterior ocular tissues after ultrasound treatment. CONCLUSIONS:Low-frequency ultrasound significantly enhanced the penetration of macromolecules via transscleral route. No undesirable side effects have been found for up to 2 weeks after ultrasound application. The study supports that sonication is a potentially safe and effective method to modulate transscleral barriers for delivering macromolecular therapeutics to posterior segment of the eye.

authors

Suen WL,Wong HS,Yu Y,Lau LC,Lo AC,Chau Y

doi

10.1167/iovs.13-11978

subject

Has Abstract

pub_date

2013-06-26 00:00:00

pages

4358-65

issue

6

eissn

0146-0404

issn

1552-5783

pii

iovs.13-11978

journal_volume

54

pub_type

杂志文章
  • Expression of alternatively spliced growth factor receptor isoforms in the human trabecular meshwork.

    abstract:PURPOSE:Growth factors act through high-affinity cell surface receptors expressed by target cells and are critical modulators of cell function. Because aqueous humor is known to contain growth factors, these molecules may play a key role in maintaining the normal function of the human trabecular meshwork (HTM). Alterna...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Wordinger RJ,Clark AF,Agarwal R,Lambert W,Wilson SE

    更新日期:1999-01-01 00:00:00

  • Binocular coordination during reading of blurred and nonblurred text.

    abstract:PURPOSE:Reading a text requires vergence angle adjustments, so that the images in the two eyes fall on corresponding retinal areas. Vergence adjustments bring the two retinal images into Panum's fusional area and therefore, small remaining errors or regulations do not lead to double vision. The present study evaluated ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章,随机对照试验

    doi:10.1167/iovs.11-8237

    authors: Jainta S,Dehnert A,Heinrich SP,Jaschinski W

    更新日期:2011-12-09 00:00:00

  • Correlation of pseudoexfoliative material and optic nerve damage in pseudoexfoliation syndrome.

    abstract:PURPOSE:To determine whether the severity of glaucomatous damage in eyes with pseudoexfoliative (PEX) glaucoma is related to the amount of PEX material in the trabecular meshwork. METHODS:Trabecular meshwork and optic nerves from 19 eyes (11 donors) with PEX syndrome were studied. Eyes were chosen to represent all sta...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Gottanka J,Flügel-Koch C,Martus P,Johnson DH,Lütjen-Drecoll E

    更新日期:1997-11-01 00:00:00

  • Anterior polar cataracts in CS rats: a predictor of mature cataract formation.

    abstract:PURPOSE:The objective of this study was to characterize the morphology of the anterior opacities formed during recovery from posterior subcapsular cataract (PSC) in Royal College of Surgeons (RCS) rats. METHODS:Lenses from RCS rats at 8 and 12 weeks postnatal (n = 14 and 12, respectively) were examined under a dissect...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Al-Ghoul KJ,Kuszak JR

    更新日期:1999-03-01 00:00:00

  • Patterns and Intensities of Near-Infrared and Short-Wavelength Fundus Autofluorescence in Choroideremia Probands and Carriers.

    abstract:Purpose:To ascertain cellular constituents within islands of preserved retina in choroideremia (CHM) by multimodal imaging. Methods:CHM probands (16) and female carriers (9) of CHM were studied. Near-infrared autofluorescence (NIR-AF; 787-nm excitation; emission, >830 nm), short-wavelength autofluorescence (SW-AF; 488...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.19-27366

    authors: Paavo M,Carvalho JRL Jr,Lee W,Sengillo JD,Tsang SH,Sparrow JR

    更新日期:2019-09-03 00:00:00

  • Modulation of Tmem135 Leads to Retinal Pigmented Epithelium Pathologies in Mice.

    abstract:Purpose:Aging is a critical risk factor for the development of retinal diseases, but how aging perturbs ocular homeostasis and contributes to disease is unknown. We identified transmembrane protein 135 (Tmem135) as a gene important for regulating retinal aging and mitochondrial dynamics in mice. Overexpression of Tmem1...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.61.12.16

    authors: Landowski M,Grindel S,Shahi PK,Johnson A,Western D,Race A,Shi F,Benson J,Gao M,Santoirre E,Lee WH,Ikeda S,Pattnaik BR,Ikeda A

    更新日期:2020-10-01 00:00:00

  • BDNF attenuates retinal cell death caused by chemically induced hypoxia in rats.

    abstract:PURPOSE:To investigate the neuroprotective effects of brain-derived neurotrophic factor (BDNF) against potassium cyanide (KCN)-induced retinal damage. METHODS:Rats were injected intravitreally with iodinated BDNF. Two days later, eyeballs were dissected into various parts, and the level of radioactivity in each part w...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Ikeda K,Tanihara H,Honda Y,Tatsuno T,Noguchi H,Nakayama C

    更新日期:1999-08-01 00:00:00

  • Conjunctival epithelium in healing of corneal epithelial wounds.

    abstract::The mitotic rate and goblet cell content of conjunctival epithelium following total or central corneal epithelial removal using n-heptanol was measured to determine how the conjunctival epithelium responds to injury and whether conjuctiva responds to central corneal epithelial loss. One day following a wound that remo...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Danjo S,Friend J,Thoft RA

    更新日期:1987-09-01 00:00:00

  • Analysis of human adenovirus type 19 associated with epidemic keratoconjunctivitis and its reclassification as adenovirus type 64.

    abstract:PURPOSE:Human adenovirus species D type 19 (HAdV-D19) has been associated with epidemic keratoconjunctivitis (EKC), a highly inflammatory infection of the ocular surface. Confusion exists regarding the origins of HAdV-D19. The prototype virus (HAdV-D19p) does not cause EKC, while a virus identified later with the ident...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.12-9656

    authors: Zhou X,Robinson CM,Rajaiya J,Dehghan S,Seto D,Jones MS,Dyer DW,Chodosh J

    更新日期:2012-05-14 00:00:00

  • Association Between Osteoporosis and Age-Related Macular Degeneration: The Korea National Health and Nutrition Examination Survey.

    abstract:Purpose:Previous studies have reported a possible link between low bone mineral density and AMD. The aim of the present study was to investigate the association between osteoporosis and AMD in a South Korean cohort. Methods:This cross-sectional, nationwide study included 3496 women and 2789 men who had participated in...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.18-24059

    authors: Yoo TK,Kim SH,Kwak J,Kim HK,Rim TH

    更新日期:2018-03-20 00:00:00

  • Immunohistochemical pathology of the corneal endothelium in iridocorneal endothelial syndrome.

    abstract:PURPOSE:To evaluate immunohistochemical staining of the endothelia of corneas from patients with clinical diagnoses of iridocorneal endothelial (ICE) syndrome. METHODS:Corneas diagnosed with ICE syndrome and removed during corneal transplantation were freshly frozen, sectioned, and stained with monoclonal antibodies t...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Hirst LW,Bancroft J,Yamauchi K,Green WR

    更新日期:1995-04-01 00:00:00

  • Trabecular meshwork glycosaminoglycans in human and cynomolgus monkey eye.

    abstract::The glycosaminoglycans (GAGs) extractable from the trabecular meshworks (TM) of human and non-human primate eye have been analyzed by sequential enzymatic degradation and cellulose acetate electrophoresis. For comparison, similar extracts of the cornea, sclera, iris, and ciliary body have also been analyzed. The distr...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Acott TS,Westcott M,Passo MS,Van Buskirk EM

    更新日期:1985-10-01 00:00:00

  • Sigma-1 Receptor Regulates Mitochondrial Function in Glucose- and Oxygen-Deprived Retinal Ganglion Cells.

    abstract:Purpose:Understanding the role of mitochondria in retinal ganglion cells (RGCs) is relevant to human disease as studies have shown mitochondrial abnormalities in primary open-angle glaucoma patients. This study seeks to determine the effects of the sigma-1 receptor (σ-1r) and its agonists on mitochondrial function in o...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.16-19199

    authors: Ellis DZ,Li L,Park Y,He S,Mueller B,Yorio T

    更新日期:2017-05-01 00:00:00

  • Invasion of retinal pigment epithelial cells: N-cadherin, hepatocyte growth factor, and focal adhesion kinase.

    abstract:PURPOSE:To investigate the role of N-cadherin and hepatocyte growth factor (HGF) in the invasion of collagen type I by human retinal pigment epithelial (RPE) cells. METHODS:RPE sheets from eight human eyes were used for characterization through Western blot analysis of the expression of cadherin in total lysates or af...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.01-1096

    authors: Van Aken EH,De Wever O,Van Hoorde L,Bruyneel E,De Laey JJ,Mareel MM

    更新日期:2003-02-01 00:00:00

  • Comparison of single versus multiple injections of the protein saratin for prolonging bleb survival in a rabbit model.

    abstract:PURPOSE:We compared the anti-fibrotic effects of single versus multiple postoperative injections of saratin following glaucoma filtration surgery (GFS) in the rabbit model. METHODS:The experiment was in two parts. To determine the optimal frequency for postoperative therapy, seven New Zealand White (NZW) rabbits recei...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.12-10120

    authors: Min J,Lukowski ZL,Levine MA,Meyers CA,Beattie AR,Schultz GS,Samuelson DA,Sherwood MB

    更新日期:2012-11-19 00:00:00

  • The prognostic value of extraocular extension in relation to monosomy 3 and gain of chromosome 8q in uveal melanoma.

    abstract:PURPOSE:To identify the prognostic value of extraocular extension in enucleated uveal melanoma (UM) patients and to correlate extraocular extension to chromosomal aberrations, metastasis-free survival (MFS), and clinico-histopathological risk factors. METHODS:Retrospective study of patients with UM treated with enucle...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.13-13670

    authors: van Beek JG,Koopmans AE,Vaarwater J,de Rooi JJ,Paridaens D,Naus NC,de Klein A,Verdijk RM,Kiliç E

    更新日期:2014-03-04 00:00:00

  • Keratoconus and contact lens-induced corneal warpage analysis using the keratomorphic diagram.

    abstract:PURPOSE:Videokeratography of early keratoconus may be difficult to distinguish from contact lens-induced corneal warpage, even by experienced examiners. Furthermore, topographic irregularity may be judged inconsistently if quantitative standards are not applied. Quantitative measures based on videokeratographic data we...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Smolek MK,Klyce SD,Maeda N

    更新日期:1994-12-01 00:00:00

  • Correlation of corneal acoustic and elastic properties in a canine eye model.

    abstract:PURPOSE:To examine the correlation between corneal acoustic impedance and Young's modulus in a canine eye model. METHODS:Twenty canine globes were recovered from healthy animals. Corneal acoustic impedance was measured in the intact globes using two methods: a quantitative ultrasound spectroscopy method and the reflec...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.10-5723

    authors: He X,Liu J

    更新日期:2011-02-09 00:00:00

  • Interacting influences of pregnancy and corneal injury on rabbit lacrimal gland immunoarchitecture and function.

    abstract:PURPOSE:Previous reports indicated that pregnancy and corneal injury (CI) trigger alterations of lacrimal gland (LG) growth factor expression and redistributions of lymphocytes from periductal foci to acini. The purpose of this study was to test our hypothesis that pregnancy would exacerbate the changes induced by CI. ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.05-1034

    authors: Ding C,Chang N,Fong YC,Wang Y,Trousdale MD,Mircheff AK,Schechter JE

    更新日期:2006-04-01 00:00:00

  • Genetic Association at the 9p21 Glaucoma Locus Contributes to Sex Bias in Normal-Tension Glaucoma.

    abstract:PURPOSE:Many genome-wide association studies have identified common single nucleotide polymorphisms (SNPs) at the 9p21 glaucoma locus (CDKN2B/CDKN2B-AS1) to be significantly associated with primary open-angle glaucoma (POAG), with association being stronger in normal tension glaucoma (NTG) and advanced glaucoma. We aim...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.16-19401

    authors: Ng SK,Burdon KP,Fitzgerald JT,Zhou T,Fogarty R,Souzeau E,Landers J,Mills RA,Casson RJ,Ridge B,Graham SL,Hewitt AW,Mackey DA,Healey PR,Wang JJ,Mitchell P,MacGregor S,Craig JE

    更新日期:2016-06-01 00:00:00

  • Clearance and localization of intravitreal liposomes in the aphakic vitrectomized eye.

    abstract::The authors have examined the fate of intravitreally injected liposomes in the aphakic, vitrectomized eye of the rabbit. Liposomes labelled with 125[I]-p-hydroxybenzimidylphosphatidylethanolamine were eliminated rapidly from the intraocular fluid. Nonetheless, a significant fraction of these liposomes were found to bi...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Stern WH,Heath TD,Lewis GP,Guerin CJ,Erickson PA,Lopez NG,Hong KL

    更新日期:1987-05-01 00:00:00

  • Activation of the epidermal growth factor receptor in optic nerve astrocytes leads to early and transient induction of cyclooxygenase-2.

    abstract:PURPOSE:The epidermal growth factor receptor (EGFR) appears in astrocytes after neural injury. The authors' laboratory has reported the presence of EGFR in glaucomatous optic nerves. The activation of EGFR is often associated with induction of cyclooxygenase (COX)-2. In this study, the induction of COX-2 pathway in rat...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.04-1473

    authors: Zhang X,Neufeld AH

    更新日期:2005-06-01 00:00:00

  • Effects of mithramycin, mitomycin, daunorubicin, and bleomycin on human subconjunctival fibroblast attachment and proliferation.

    abstract::Scar formation and fibrosis are the most common causes of ultimate glaucoma filtration surgery failure. The authors used Coulter counter, hexosaminidase, and 3H-thymidine assays to evaluate the effects of mithramycin, mitomycin, daunorubicin, and bleomycin on human subconjunctival fibroblast growth in tissue culture. ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Lee DA,Lee TC,Cortes AE,Kitada S

    更新日期:1990-10-01 00:00:00

  • Absence of degenerative changes in retinal and uveal capillary pericytes in diabetic rats.

    abstract::Ultrastructural morphometric techniques were used to quantify pericyte degeneration in retinal and uveal capillaries of streptozotocin-diabetic rats in order to assess the suitability of this small rodent model of diabetes for studies of the pathogenesis of microvascular eye disease in diabetic humans. Male, Sprague-D...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Tilton RG,LaRose LS,Kilo C,Williamson JR

    更新日期:1986-05-01 00:00:00

  • Ocular absorption of topically applied FK506 from liposomal and oil formulations in the rabbit eye.

    abstract:PURPOSE:To investigate the use of topically applied FK506, a new immunosuppressive compound, systemic and ocular absorption was determined in serum and various ocular tissues. METHODS:Two drops of 20 microliters FK506 were applied using oil dissolved (OD-FK506) or liposome-bound (LIP-FK506) drug. FK506 concentrations ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Pleyer U,Lutz S,Jusko WJ,Nguyen KD,Narawane M,Rückert D,Mondino BJ,Lee VH,Nguyen K

    更新日期:1993-08-01 00:00:00

  • A comparative study of ascorbic acid entry into aqueous and vitreous humors of the rat and guinea pig.

    abstract::The transport rates of radiolabeled ascorbic acid and dehydroascorbic acid, as well as, labeled 3-O-methyl-D-glucose and L-glucose from a central plasma compartment into aqueous and vitreous humors and cerebrospinal fluid were studied in vivo. Normal, male albino Sprague-Dawley rats and English Short Haired guinea pig...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: DiMattio J

    更新日期:1989-11-01 00:00:00

  • A method for preparing a viable corneal endothelial layer, completely denuded of overlying stroma.

    abstract::A method for denuding Descemet's membrane by dissection of all overlying stroma, while preserving the corneal endothelial layer, was developed and evaluated. The technique consists in treating the stroma with trypsin and surgically removing the softened stromal layers. With an automated thickness-measuring technique, ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Soong H,Fischbarg J,Iwamoto T

    更新日期:1978-11-01 00:00:00

  • Effect of transforming growth factor beta-1 in endotoxin-induced uveitis.

    abstract:PURPOSE:Transforming growth factor beta-1 (TGF beta-1) can modulate inflammation. Endotoxin-induced uveitis (EIU) is characterized by acute ocular inflammation related to the release of cytokines, including interleukin (IL)-6. The authors investigated the effect of TGF beta-1 on EIU in mice. METHODS:Three independent ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Peng B,Li Q,Roberge FG,Chan CC

    更新日期:1997-01-01 00:00:00

  • Noncontact optical measurement of lens capsule thickness in human, monkey, and rabbit postmortem eyes.

    abstract:PURPOSE:To measure interspecies thickness differences in the central anterior and posterior capsules of postmortem crystalline lenses, by a technique that maintains the anatomic integrity of the lens. METHODS:Central capsule thickness was measured with a custom-built, noncontact optical system, using a focus detection...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.05-0039

    authors: Ziebarth NM,Manns F,Uhlhorn SR,Venkatraman AS,Parel JM

    更新日期:2005-05-01 00:00:00

  • The decline in attentional visual fields over time among older participants in the Salisbury Eye Evaluation Driving Study.

    abstract:PURPOSE:The loss of attentional visual field (AVF) has been linked to poor mobility and car crashes. We investigated the risk factors associated with a decrease in AVF over time among participants in the Salisbury Eye Evaluation Driving Study (SEEDS). METHODS:In a longitudinal cohort of 968 individuals ages 67 to 87, ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.11-8874

    authors: Rao P,Munoz B,Turano K,Munro C,West SK

    更新日期:2013-03-13 00:00:00