Abstract:
PRECIS:Silica nanoparticles (SiNPs), which are potential drug carriers for glaucoma treatment, may induce mild dose-dependent cytotoxicity but not so severe as to compromise a mammalian target of rapamycin (mTOR) pathway in immortalized trabecular meshwork (TM) cells. PURPOSE:Nanoparticle-based ophthalmic drug delivery is a promising field of drug development. In this study, we evaluated the effect of nonporous SiNPs on human TM cells. METHODS:TM cells were exposed to different concentrations (0 to 100 µg/mL) of SiNPs (50, 100, and 150 nm) for up to 48 hours. Transmission electron microscopy confirmed the intracellular distribution of SiNPs. Cellular viability assay, reactive oxygen species generation, autophagy, and activation of the mTOR pathway were evaluated. Histologic analysis of the TM structure was performed after intracameral injection of SiNPs (0.05 mL of 200 µg/mL concentration) in rabbits. RESULTS:SiNPs were taken up by TM cells and localized in the cytoplasm. Neither nuclear entry nor mitochondrial damage was observed. SiNPs induced a mild but dose-dependent increase of lactate dehydrogenase. However, neither increase of intracellular reactive oxygen species levels nor apoptosis was observed after SiNPs exposure. Significant coactivation of autophagy and the mTOR pathway were observed with exposure to SiNPs. Aqueous plexus structure was well maintained without inflammation in rabbits after SiNPs exposure. CONCLUSIONS:SiNPs induce mild and dose-dependent cytotoxicity in TM cells. However, the toxicity level is not enough to compromise the mTOR pathway of TM cells and histologic structure of the aqueous plexus tissue.
journal_name
J Glaucomajournal_title
Journal of glaucomaauthors
Kim M,Park JH,Jeong H,Hong J,Park CYdoi
10.1097/IJG.0000000000001709subject
Has Abstractpub_date
2021-02-01 00:00:00pages
195-202issue
2eissn
1057-0829issn
1536-481Xpii
00061198-202102000-00014journal_volume
30pub_type
杂志文章abstract:PURPOSE:To evaluate the reproducibility of retinal nerve fiber layer (RNFL) thickness measurements in normal and glaucoma patients using the spectral optical coherence tomography (OCT)/scanning laser ophthalmosope (SLO). METHODS:One experienced operator measured peripapillary RNFL thickness 3 times in succession in 98...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e3181ca7cbe
更新日期:2010-12-01 00:00:00
abstract:PURPOSE:The Molteno implant is one of the most widely used drainage devices for the management of complicated glaucoma. Antiproliferative agents such as mitomycin-C (MMC) have markedly improved the outcome of glaucoma filtering surgery. This case control study compares the results of these two techniques in the managem...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:
更新日期:1995-04-01 00:00:00
abstract:PURPOSE:To describe the Stratus optical coherence tomography (OCT) retinal nerve fiber layer (RNFL) thickness profile of dominant optic atrophy (DOA), to differentiate it from that of glaucoma. METHODS:RNFL thickness was measured using Stratus OCT in 32 eyes of 16 DOA patients. RESULTS:The temporal-most clock hour me...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e31804d23aa
更新日期:2007-12-01 00:00:00
abstract:PURPOSE:To describe a new surgical method for treating late profound hypotony in 2 patients with glaucoma drainage implant (GDI). PATIENTS AND METHODS:Two patients, an 85-year-old woman and a 44-year-old woman, presented with choroidal effusions secondary related to chronic hypotony after GDI surgery. A novel techniqu...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001022
更新日期:2018-10-01 00:00:00
abstract::Our purpose is to document the first case of unilateral mild corneal ectasia developed in an apparently nonpredisposed cornea after topical latanoprost treatment, and its regression after treatment withdrawal. We describe a 44-year-old man with visual impairment in his left eye (OS) and a past medical history of myopi...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001660
更新日期:2020-12-01 00:00:00
abstract:PURPOSE:To evaluate the peripapillary retinal nerve fiber layer (RNFL), ganglion cell complex, and macular thickness as well as their correlation with the severity of diseases. MATERIALS AND METHODS:This is a cross-sectional study and comparing both eyes of 26 patients with primary open-angle glaucoma, 25 patients wit...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000239
更新日期:2016-07-01 00:00:00
abstract::The recent advent of in vivo two-photon microscopy has allowed the repeat imaging of cortical structures at microscopic resolution within intact brains. Recent data obtained using this imaging technique shows that dendritic spines, the postsynaptic sites of the majority of excitatory synapses in the central nervous sy...
journal_title:Journal of glaucoma
pub_type: 杂志文章,评审
doi:10.1097/IJG.0b013e3182934a30
更新日期:2013-06-01 00:00:00
abstract:PURPOSE:To evaluate the effect of a single treatment of contact diode laser transscleral cyclophotocoagulation (TSCP) on intraocular pressure (IOP) in patients with refractory glaucoma and perform a historical meta-analysis of the relationship between successful IOP control and various laser parameters. METHODS:Clinic...
journal_title:Journal of glaucoma
pub_type: 杂志文章,meta分析
doi:10.1097/00061198-200208000-00009
更新日期:2002-08-01 00:00:00
abstract:BACKGROUND:This meta-analysis aims to comprehensively evaluate the association between total homocysteine (tHcy) levels, serum folic acid, vitamin B12, vitamin B6 levels, methylenetetrahydrofolate reductase (MTHFR) C677T genotype, and risk of normal-tension glaucoma (NTG). MATERIALS AND METHODS:A systematic search of ...
journal_title:Journal of glaucoma
pub_type: 杂志文章,meta分析
doi:10.1097/IJG.0000000000000269
更新日期:2016-02-01 00:00:00
abstract:PURPOSE:To compare central corneal thickness between eyes with congenital glaucoma and normal controls and to correlate this parameter with corneal diameter and axial length. METHODS:Eyes of consecutive children with congenital glaucoma with previous glaucoma surgery and eyes of children with inadequacy of lacrimal dr...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/00061198-200406000-00002
更新日期:2004-06-01 00:00:00
abstract:PRECIS:Chinese Glaucoma Study Consortium (CGSC) as the first nationwide glaucoma registry in China, we describe its design, rationale, the geographic distribution of the hospitals, and baseline patient characteristics. AIM:As a leading cause of blindness in China, glaucoma affects 2% to 4% of adults over the age of 40...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001378
更新日期:2019-11-01 00:00:00
abstract:PURPOSE:Subconjunctival mitomycin C has been used in glaucoma filtration surgery with success. A prospective, randomized, masked, placebo-controlled study was performed to evaluate whether single transconjunctival mitomycin C applied either preoperatively or postoperatively would enhance the success of filtration surge...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:
更新日期:1997-10-01 00:00:00
abstract:PURPOSE:The GDx is a scanning laser polarimeter that assesses peripapillary nerve fiber layer thickness. In addition to the 14 existing outcome parameters, four new parameters have been described recently: the Ellipse Standard Deviation (ESD), the Normalized Superior Area (NSA), the Normalized Inferior Area (NIA) and t...
journal_title:Journal of glaucoma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00061198-200402000-00006
更新日期:2004-02-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy of CO2 laser-assisted sclerectomy surgery (CLASS) compared with classic nonpenetrating deep sclerectomy (NPDS) with implant in medically uncontrolled glaucoma patients. MATERIALS AND METHODS:Patients who underwent primary filtration surgery with CO2 laser system at the time interval be...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000187
更新日期:2016-07-01 00:00:00
abstract:PURPOSE:To evaluate the effectiveness of using a noncontact tonometer (NCT) versus a rebound tonometer (ICare) when measuring the intraocular pressure (IOP) in healthy children. DESIGN:Prospective observational study. METHODS:A total of 180 (96 males and 84 females) healthy children, aged 6 months to 15 years, were r...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e3181d12dc4
更新日期:2011-01-01 00:00:00
abstract:PRECIS:Repeated use of the Micropulse P3 (MP3) probe during micropulse transscleral cyclophotocoagulation is associated with an increase in laser output over time. PURPOSE:The purpose of this study was to examine the laser efficacy of the MP3 probe following repeated use. METHODS:This was an observational study carri...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001277
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:To compare a novel anterior segment optical coherence tomography (AS-OCT) bleb grading system with a clinical bleb grading system and both with intraocular pressure (IOP) following trabeculectomy surgery. MATERIALS AND METHODS:A novel AS-OCT grading system based on bleb size and internal reflectivity was devel...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000636
更新日期:2017-05-01 00:00:00
abstract:PURPOSE:To estimate the outpatient clinic burden and surgical workload related to glaucoma in Lagos, Nigeria. METHODS:A multicentre study involving the 2 tertiary eye institutions, 7 secondary eye centers with eye care facilities, and the largest private eye hospital in Lagos state, Nigeria. Data on outpatient departm...
journal_title:Journal of glaucoma
pub_type: 杂志文章,多中心研究
doi:10.1097/IJG.0b013e318264cd80
更新日期:2014-01-01 00:00:00
abstract:PURPOSE:Glaucoma drainage implantation in conjunction with Boston Type 1 Keratoprosthesis placement is a surgical option in controlling postoperative glaucoma. The purpose of this study is to report outcomes of combined pars plana vitrectomy and glaucoma drainage implantation with corneal patch graft in Boston Type 1 K...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e31829e55f8
更新日期:2014-01-01 00:00:00
abstract:PURPOSE:We report a case of progressive high hypermetropia following glaucoma filtration surgery in a child with Axenfeld-Rieger syndrome and congenital glaucoma. METHODS/RESULTS:We report a case of a 4-day-old female child presented as a case of Axenfeld-Rieger anomaly with secondary glaucoma in both eyes (OU), who u...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001283
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:The authors identify any diurnal intraocular pressure (IOP) variation in healthy Cayo Santiago macaques, as well as Cayo Santiago macaques with normotensive and hypertensive primary open-angle glaucoma (POAG), to further evaluate their potential value as a model for human POAG. METHODS:Twenty-four monkeys (eig...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract:PURPOSE:The purpose of this study was to report presentation and outcomes of coexisting congenital glaucoma with retinopathy of prematurity (ROP) in "Indian Twin cities ROP study (ITCROPS)." METHODS:Children with ROP and congenital glaucoma were identified from ITCROPS (prospective digital database) between 1997 and 2...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001124
更新日期:2019-01-01 00:00:00
abstract:PURPOSE:To evaluate anxiety felt by glaucoma patients. PATIENTS AND METHODS:In total, 472 glaucoma patients responded to a questionnaire on anxiety, subjective symptoms, and vision-related quality of life (VR-QOL) associated with glaucoma. Anxiety was evaluated using the State-Trait Anxiety Inventory (STAI), state anx...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000761
更新日期:2017-11-01 00:00:00
abstract:PURPOSE:To determine the relation between office intraocular pressure (IOP) and 24-hour IOP in patients with primary open-angle glaucoma (POAG) treated with 3 kinds of antiglaucoma eye drops. PATIENTS AND METHODS:Subjects were 42 patients with POAG (71 eyes). All were being treated with 3 different topical antiglaucom...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e31802ff85f
更新日期:2007-03-01 00:00:00
abstract:PURPOSE:To propose a new surgical technique for optimized visualization of the chamber angle using scleral indentation under an operating microscope in goniosynechialysis (GSL). PATIENTS AND METHODS:Six volunteers with normal chamber angle and five patients with synechial angle closure glaucoma were examined. Scleral ...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/01.ijg.0000170061.51878.02
更新日期:2005-08-01 00:00:00
abstract:PURPOSE:The objective of this study is to evaluate capillary blood flow of the juxtapapillary retina and neuroretinal rim area in primary open angle glaucoma (POAG) by a new noninvasive method performing a high-definition topography of perfused vessels of the retina and the optic nerve head with simultaneous evaluation...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract::We report 2 bilateral cases that presented as primary ocular hypertension and primary angle-closure glaucoma, respectively; however, they were subsequently discovered to be harboring secretory pituitary tumors. After transsphenoidal tumor resection, intraocular pressures (IOPs) in all 4 eyes returned to normal levels....
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e31829521f2
更新日期:2015-03-01 00:00:00
abstract:PURPOSE:To evaluate the reliability indices [fixation losses, false negative response rates (FN) and false positive response rates] and threshold sensitivities obtained from glaucoma patients with a Compass perimeter and to compare the same with the Humphrey field analyzer (HFA). METHODS:In a cross-sectional study, 97...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000609
更新日期:2017-03-01 00:00:00
abstract:PURPOSE OF THE STUDY:The purpose of the study was to evaluate the clinical efficacy of swept-source optical coherence tomography (SS-OCT), we compared the intradevice repeatability of thickness measurements obtained using SS-OCT to that of measurements obtained using spectral domain OCT (SD-OCT), and assessed the inter...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000536
更新日期:2017-02-01 00:00:00
abstract::The pressure on glaucoma services is ever-growing, and policymakers seek robust cost-effectiveness arguments in their decisions around resource allocation. The benefits of glaucoma are in preventing or delaying a future loss of vision and associated quality of life, and this expectation is quantified using a metric ca...
journal_title:Journal of glaucoma
pub_type: 杂志文章,评审
doi:10.1097/IJG.0000000000001462
更新日期:2020-04-01 00:00:00