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1.
BMC Ophthalmol ; 24(1): 451, 2024 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-39407182

RESUMEN

To assess the level of both pro-inflammatory and anti-inflammatory cytokines in the aqueous humor (AH) of patients suffering from uveitis, with or without coexisting glaucoma, and compare them with patients diagnosed with primary open-angle glaucoma (POAG) and those with age-related cataract (ARC). By using Luminex xMAP® multiplex assays analyses, we assessed levels of 11 cytokines and chemokines, and compared them across groups, including uveitis-secondary glaucoma (USG) (n = 16), uveitis without glaucoma (UwoG), (n = 16), POAG (n = 16), and ARC (n = 16) to explore the correlation between these cytokines and the presence of uveitis, as well as intraocular pressure (IOP). Pro-inflammatory factors MCP-1, MIP-1ß, IL-6, IL-8, and transforming growth factors TGF-ß1 and TGF-ß2 were significantly elevated in the AH of USG eyes. In the case of enhanced anti-inflammatory in the perioperative period, the pro-inflammatory factors remained notably elevated in the USG group compared to the UwoG group (P < 0.01). The levels of IL-6, IL-8, and MCP-1 in the AH of the USG group and POAG group had the same trend, which markedly surpassed those of the ARC group (P < 0.01). Significantly increased levels of MCP-1, MIP-1ß, IL-6, IL-8, TGF-ß1, and TGF-ß2 were found in the AH of USG patients, implying a potential role for these mediators in the progression of glaucomatous manifestations within patients with uveitis. Besides the analysis revealed no discernible statistical disparity in cytokine concentrations within the AH of USG eyes whether the preoperative baseline IOP was greater than 30 mmHg or not, indicating that the safety of antiglaucoma surgery in USG patients even with baseline high IOP.


Asunto(s)
Humor Acuoso , Citocinas , Glaucoma de Ángulo Abierto , Presión Intraocular , Uveítis , Humanos , Humor Acuoso/metabolismo , Citocinas/metabolismo , Femenino , Masculino , Persona de Mediana Edad , Uveítis/metabolismo , Uveítis/diagnóstico , Anciano , Presión Intraocular/fisiología , Glaucoma de Ángulo Abierto/metabolismo , Adulto , Biomarcadores/metabolismo
2.
Sensors (Basel) ; 24(11)2024 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-38894335

RESUMEN

Multi-modal medical image fusion (MMIF) is crucial for disease diagnosis and treatment because the images reconstructed from signals collected by different sensors can provide complementary information. In recent years, deep learning (DL) based methods have been widely used in MMIF. However, these methods often adopt a serial fusion strategy without feature decomposition, causing error accumulation and confusion of characteristics across different scales. To address these issues, we have proposed the Coupled Image Reconstruction and Fusion (CIRF) strategy. Our method parallels the image fusion and reconstruction branches which are linked by a common encoder. Firstly, CIRF uses the lightweight encoder to extract base and detail features, respectively, through the Vision Transformer (ViT) and the Convolutional Neural Network (CNN) branches, where the two branches interact to supplement information. Then, two types of features are fused separately via different blocks and finally decoded into fusion results. In the loss function, both the supervised loss from the reconstruction branch and the unsupervised loss from the fusion branch are included. As a whole, CIRF increases its expressivity by adding multi-task learning and feature decomposition. Additionally, we have also explored the impact of image masking on the network's feature extraction ability and validated the generalization capability of the model. Through experiments on three datasets, it has been demonstrated both subjectively and objectively, that the images fused by CIRF exhibit appropriate brightness and smooth edge transition with more competitive evaluation metrics than those fused by several other traditional and DL-based methods.

3.
Lasers Med Sci ; 37(2): 949-959, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-34003406

RESUMEN

This study compared the efficacy of modified CO2 laser-assisted sclerectomy surgery (CLASS) with combined CLASS and trabeculectomy (CLASS-TRAB) in patients with uveitic glaucoma (UG). UG patients who underwent CLASS-TRAB between August 2015 and April 2019 were retrospectively compared with a control group who underwent a modified CLASS standalone procedure during the same period. Visual acuity, intraocular pressure (IOP), use of supplemental medical therapy and postoperative complications were recorded at baseline, 1 week, 3 months, 6 months and 12 months. Forty patients (40 eyes) were enrolled, and each group had 20 patients (20 eyes). The age and sex distribution were matched between groups (P > 0.05). Both the preoperative IOP (CLASS: 34.9 ± 9.3 mmHg, CLASS-TRAB: 36.8 ± 8.7 mmHg; P > 0.05) and number of glaucoma medications (CLASS: 3.3 ± 0.4, CLASS-TRAB: 3.5 ± 0.5; P > 0.05) were relatively higher in the CLASS-TRAB group than in the CLASS group. At the final follow-up, the IOP (CLASS: 12.9 ± 3.4 mmHg, CLASS-TRAB: 11.2 ± 2.5 mmHg) and number of glaucoma medications (CLASS: 0.4 ± 0.7 and CLASS-TRAB: 0.2 ± 0.5) significantly decreased in both groups (P < 0.01). Both the complete success rate and qualified success rate were comparable between the two groups (CLASS versus CLASS-TRAB: 55% versus 80%, P = 0.09; 80% versus 95%, P = 0.34). CLASS-TRAB is as efficient as modified CLASS in terms of the IOP-lowering effect, providing a new option for patients with UG that is severe and ineligible for other treatments.


Asunto(s)
Glaucoma , Láseres de Gas , Trabeculectomía , Dióxido de Carbono , Estudios de Seguimiento , Glaucoma/cirugía , Humanos , Presión Intraocular , Láseres de Gas/uso terapéutico , Estudios Retrospectivos , Trabeculectomía/métodos , Resultado del Tratamiento
4.
Graefes Arch Clin Exp Ophthalmol ; 259(11): 3395-3404, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34216256

RESUMEN

PURPOSE: Changes of choroidal circulation throughout the disease course of Vogt-Koyanagi-Harada (VKH) disease and the clinical significance remain unclear. Choriocapillary vascular density (CC VD) measured by optical coherence tomography angiography (OCTA) were compared in different disease stages of VKH and its correlation with other parameters was analyzed, aiming to explore their clinical relevance. METHODS: This is a retrospective case series. One hundred and fourteen VKH patients and 47 normal controls (NCs) were included. Patients were grouped into the acute uveitic, convalescent, and chronic recurrent stages (only anterior recurrent cases included), and OCTA images were obtained from VKH patients in these stages. Best corrected visual acuity (BCVA), CC VD, and subfoveal choroidal thickness (SFCT) were recorded and compared. RESULTS: CC VD in acute (58.26% ± 0.84%), convalescent (64.85% ± 0.33%), and chronic recurrent (62.78% ± 0.70%) stage of VKH patients were all significantly lower than that in NCs (66.37% ± 0.41%) (p < 0.001, p = 0.017, and p < 0.001, respectively). CC VD increased by 6.59% ± 0.91% with resolution of acute inflammation (p < 0.001) and decreased by 2.07% ± 0.74% during anterior uveitis relapse (p = 0.009). Patients with a positive history of anterior recurrence had lower CC VD (- 2.43% ± 0.75%, p = 0.003) in the convalescent stage than those without. CC VD was negatively correlated with logMAR BCVA in VKH (r = - 0.261, p < 0.001). CONCLUSION: CC VD was decreased in every stage of VKH. CC VD has the potential to reflect the status of uveitis and might be promising in monitoring the disease activity. OCTA is a convenient and straightforward tool to evaluate choroidal vascularity, and CC VD provides supplemental quantitative information of the choriocapillaris. Further studies are needed to explore the values of OCTA quantitative parameters in monitoring VKH progression, predicting visual prognosis, and guiding clinical decisions.


Asunto(s)
Síndrome Uveomeningoencefálico , Angiografía con Fluoresceína , Humanos , Densidad Microvascular , Estudios Retrospectivos , Tomografía de Coherencia Óptica , Síndrome Uveomeningoencefálico/diagnóstico , Agudeza Visual
5.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 43(4): 659-662, 2021 Aug.
Artículo en Zh | MEDLINE | ID: mdl-34494541

RESUMEN

The incidence of endophthalmitis after vitrectomy is extremely low,especially lower in silicone oil-filled eyes.Silicone oil exerts a toxic effect on the cell membranes of microorganisms and leads to the lack of nutrients.It is thus believed to inhibit the growth of bacteria and fungi.Endophthalmitis induced by mixed bacteria in silicone oil-filled eye has been rarely reported.We reviewed the clinical manifestations,diagnosis,and treatment of a patient with endophthalmitis caused by mixed infection of Morganella morganii and Staphylococcus epidermidis in the silicone oil-filled eye,aiming to improve the understanding and diagnosis of mixed infections.


Asunto(s)
Coinfección , Endoftalmitis , Bacterias , Humanos , Aceites de Silicona/efectos adversos , Vitrectomía
6.
J Chem Phys ; 153(1): 014706, 2020 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-32640820

RESUMEN

In this study, high quality CsxFA1-xPbIyBr3-y perovskite thin films were successfully fabricated by an evaporation/spray-coating hybrid deposition method. In this method, CsI and PbI2 were first deposited via thermal evaporation, and then FAI/FABr mixed solution was sprayed on the CsI/PbI2 substrate to form the CsxFA1-xPbIyBr3-y film. As confirmed by x-ray diffraction, scanning electron microscopy, and atomic force microscopy, a perovskite film with full surface coverage and small surface roughness was obtained. Then, the effect of interface modification materials on the performance of perovskite solar cells (PSCs) was investigated: the devices with the [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) interlayer incorporated via vacuum evaporation deposition between SnO2 and perovskite showed remarkably higher performance than those with the C60 interlayer, which was attributed to enhanced charge extraction and reduced recombination at the SnO2/PCBM/perovskite interface. As a result, a high power conversion efficiency (PCE) of 18.21% was obtained for the 0.16 cm2 device. To the best of our knowledge, it is the highest efficiency of CsxFA1-xPbIyBr3-y based PSCs fabricated by the spray technique. Furthermore, we fabricated mini-modules with the size of 5 × 5 cm2 and achieved a PCE of 14.7%.

7.
Chemphyschem ; 17(1): 112-8, 2016 Jan 04.
Artículo en Inglés | MEDLINE | ID: mdl-26593743

RESUMEN

Moisture is shown to activate the reaction between PbI2 and methylammonium halides. In addition, two activating mechanisms are proposed for the formation of CH3 NH3 PbI3 and CH3 NH3 PbI3-x Clx films from a series of carefully controlled experiments. When these rapidly formed perovskite films are directly fabricated into the devices, poor photovoltaic properties are found, due to heavy surface charge recombination. However, the cell performance can be significantly enhanced to 13.63 % and to over 12 % in the steady state for CH3 NH3 PbI3 and to 15.50 % and over 14 % in the steady state for CH3 NH3 PbI3-x Clx , if the rapidly formed perovskite film is annealed. Thus, it is believed that moisture (below 60 % RH) is not a problem for the fabrication of highly efficient perovskite solar cells.

8.
Phys Chem Chem Phys ; 17(7): 4937-44, 2015 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-25594083

RESUMEN

An ultrathin AlOx layer has been deposited onto a CH3NH3PbI3 film using atomic layer deposition technology, to construct a metal-insulator-semiconductor (MIS) back contact for the hole-transporting material-free perovskite solar cell. By optimization of the ALD deposition cycles, the average power conversion efficiency (PCE) of the cell has been enhanced from 8.61% to 10.07% with a highest PCE of 11.10%. It is revealed that the improvement in cell performance with this MIS back contact is mainly attributed to the enhancement in charge collection resulting from the electron blocking effect of the AlOx layer.

9.
Photodiagnosis Photodyn Ther ; 45: 103892, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37951326

RESUMEN

Darier's disease is a rare, genetically determined dyskeratotic skin disorder. Although many conventional treatments have been reported, management of Darier's disease remains challenging. Most patients are at high risk of recurrence during long-term follow-up. Here, we present two patients who were successfully treated with ALA photodynamic therapy (PDT) and ablative 2940 nm Er:YAG fractional laser. Both patients exhibited significant improvements in the affected areas with moderate pain, transient erythema and edema. Remission durations of up to 2 years were observed in both patients after combination treatment. Our findings suggest that the combination of ALA-PDT and 2940 nm fractional Er:YAG laser may be an effective, safe and well-tolerated treatment option for Darier's disease.


Asunto(s)
Enfermedad de Darier , Láseres de Estado Sólido , Fotoquimioterapia , Humanos , Fármacos Fotosensibilizantes/uso terapéutico , Enfermedad de Darier/tratamiento farmacológico , Fotoquimioterapia/métodos , Láseres de Estado Sólido/uso terapéutico , Terapia Combinada
10.
Phys Chem Chem Phys ; 15(22): 8710-5, 2013 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-23639947

RESUMEN

20 nm ZnO nanoparticles are used to fabricate the mesoporous photoanode of the CdS/CdSe quantum dot-sensitized solar cells by the simple doctor blade method. A maximum power conversion efficiency of 4.46% has been achieved, which indicated exciting prospects for ZnO nanoparticle based quantum dot-sensitized solar cells.


Asunto(s)
Compuestos de Cadmio/química , Nanopartículas/química , Puntos Cuánticos , Compuestos de Selenio/química , Energía Solar , Sulfuros/química , Óxido de Zinc/química , Suministros de Energía Eléctrica
11.
Int J Ophthalmol ; 15(8): 1261-1265, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36017032

RESUMEN

AIM: To evaluate the effectiveness and corticosteroid-sparing capabilities of methotrexate (MTX) in the treatment of chronic non-necrotizing anterior scleritis in Chinese patients. METHODS: A retrospective chart review of all patients with active anterior scleritis between January 2015 and June 2019 was conducted. All patients received 10 to 15 mg/wk MTX orally, and corticosteroids (10 to 40 mg/d prednisolone or equivalent methylprednisolone) with slow tapering. Topical corticosteroid eye drops (1% prednisolone actate, 0.1% dexmathosone or 0.1% fluoromethalone) were applied to control comorbid anterior uveitis at presentation or during follow up. The main outcomes were inflammation control and corticosteroid-sparing success, and secondary outcomes were reduction of immunosuppression load and best-corrected visual acuity (BCVA). RESULTS: Thirty-two eyes (22 patients) were included. The proportion of patients who achieved corticosteroid-sparing success was 50.0% at 3mo and 77.3% at 12mo [8 (36.4%) patients discontinued corticosteroid]. The proportion of eyes that achieved inflammation control was 59.4% at 3mo and 78.1% at 12mo. The immunosuppression load was 5.14±0.87 at presentation and 2.76±2.34 at 12mo (P<0.01). BCVA maintained unchanged or improved in 29 (90.6%) of all affected eyes. One patient discontinued MTX treatment because of an abnormal liver function test, and no other serious adverse effects were observed. CONCLUSION: According to this pilot study, low dose MTX appear to be a well-tolerated and effective treatment for chronic non-necrotizing anterior scleritis patients in the Chinese population.

12.
BMJ Open ; 12(12): e062211, 2022 12 07.
Artículo en Inglés | MEDLINE | ID: mdl-36600374

RESUMEN

INTRODUCTION: Paediatric patients with chronic anterior uveitis are more prone to suffer from the chronic course of intraocular inflammation and adverse effects of long-term immunomodulatory therapy, either topical glucocorticosteroids or systemic immunomodulatory agents. The performance of adalimumab has been shown to be fairly favourable in treating refractory non-infectious uveitis, but the detailed indication is still under investigation. This study aims to assess the efficacy and safety of adalimumab for inflammatory flare prevention in non-infectious paediatric anterior uveitis with peripheral retinal vascular leakage, compared with methotrexate. METHODS AND ANALYSIS: Children weighed ≥30 kg and aged between 4 and 16 years old with active non-infectious anterior uveitis with peripheral retinal vascular leakage on ultra-wildfield fluorescein fundus angiography will be included. They will be treated with a predesigned inflammatory control regimen to reach inflammatory quiescence in 1 month. After that they will be treated with either methotrexate 10 mg once a week or adalimumab once every 2 weeks and regularly followed up for 6 months. The primary endpoint is uveitis flare defined as defined as anterior chamber cell count grading increased from 0 to 1 within the observation period. ETHICS AND DISSEMINATION: The study was approved by the Institutional Review Board of Peking Union Medical College Hospital, Beijing, China (Approved protocol V3, dated 27 July 2021. Approval number 25-ZS-3062) and has been registered on ClinicalTrials.gov. Written informed consent will be collected from every patient and their guardians prior to study participation. The results of this trial will be presented at local and international meetings and submitted to peer-reviewed journals for publication. TRIAL REGISTRATION NUMBER: NCT05015335.


Asunto(s)
Uveítis Anterior , Uveítis , Humanos , Niño , Preescolar , Adolescente , Adalimumab/efectos adversos , Metotrexato , Uveítis Anterior/tratamiento farmacológico , Uveítis Anterior/prevención & control , Uveítis/tratamiento farmacológico , Inflamación , Resultado del Tratamiento , Ensayos Clínicos Controlados Aleatorios como Asunto
13.
Ocul Immunol Inflamm ; 30(7-8): 1617-1624, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-33983863

RESUMEN

PURPOSE: To evaluate the clinical safety and efficacy of modified CO2 laser-assisted sclerectomy surgery (CLASS) in patients with uveitic glaucoma (UG) using primary open-angle glaucoma (POAG) patients for a comparison. METHODS: This retrospective study included UG and POAG patients from the modified CLASS Study Group database. Intraocular pressure (IOP) and the number of glaucoma medications were compared between groups by the Wilcoxon test. The Kaplan-Meier method was used for survival analysis; complete success was defined as 5≤ IOP≤18 mmHg and a ≥ 20% reduction in IOP from baseline without medication. RESULTS: Twenty-three and 25 eyes in UG and POAG groups were included. At the 12-month visit in both groups, the mean IOP and mean number of IOP-lowering medications were significantly reduced compared to baseline, with complete success rates of 60.9% and 64.0% in the UG and POAG groups (P = .859). CONCLUSIONS: Modified CLASS yields similar outcomes for patients with UG and POAG.


Asunto(s)
Dióxido de Carbono , Glaucoma de Ángulo Abierto , Humanos , Glaucoma de Ángulo Abierto/complicaciones , Glaucoma de Ángulo Abierto/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Rayos Láser
14.
Front Med (Lausanne) ; 9: 813696, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35425781

RESUMEN

Purpose: This study is aimed to assess the efficacy of adalimumab in alleviating peripheral vascular leakage in pediatric chronic anterior uveitis patients, along with its ability to improve best-corrected visual acuity (BCVA) and inflammation parameters, its efficacy in reducing topical glucocorticosteroids (GCs) and systemic immunomodulatory therapy (IMT), and its safety profile. Methods: A self-controlled study of pediatric chronic anterior uveitis patients who presented with peripheral retinal vascular leakage on ultra-widefield fluorescein fundus angiography and underwent adalimumab treatment was conducted. The primary outcome was the extent of retinal vascular leakage at the 3- and 6-month follow-up visits. Secondary outcomes included BCVA, inflammation parameters (fresh keratic precipitates, anterior chamber cell, and vitreous cell grades), frequency of topical glucocorticosteroid eye drops, IMT load, and adverse effects at the 3- and 6-month follow-up visits. Results: Twenty patients with a mean age of 9.30 ± 3.26 years old were included. The mean follow-up period was 9.0 ± 3.0 months, with all patients followed up for at least 6 months. At the 3- and 6-month follow-ups, the peripheral vascular leakage score decreased significantly (2.87, 95% CI (2.14, 3.60), p < 0.001 for 3 months, 2.75, 95% CI (1.76, 3.73), p < 0.001 for 6 months). Alongside BCVA (p = 0.013 for 3 months, p = 0.005 for 6 months) was improved significantly, inflammatory parameters represented by fresh keratic precipitates, anterior chamber cell, and vitreous cell grades were improved significantly (p < 0.001, p < 0.001, for all parameters) and topical GC usage was significantly reduced (p < 0.001, p < 0.001) at 3 and 6 months. There was also a statistically significant reduction in systemic IMT load at 6 months (p < 0.001). Adverse events in the observation period included local redness around the injection site and mild upper respiratory symptoms. Conclusion: Adalimumab could effectively alleviate peripheral vascular leakage in pediatric patients with chronic anterior uveitis. It could also be helpful in improving BCVA and inflammation parameters and decreasing topical glucocorticosteroid eye drops and systemic IMT. Adalimumab is generally safe for pediatric uveitis.

15.
Ocul Immunol Inflamm ; 29(4): 766-770, 2021 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-31902258

RESUMEN

Purpose: To assess the efficacy and safety of high-energy selective laser trabeculoplasty (SLT) for steroid-induced glaucoma in patients with quiescent uveitis.Methods: A retrospective study of steroid-induced glaucoma in quiescent uveitic patients who underwent SLT at our center from December 2014 to November 2017 and had been followed up for at least 1 year. Intraocular pressure (IOP) and IOP-lowering medications were recorded at baseline, and at 1 week, 1 month, 3 months, 6 months and 12 months after SLT. Treatment success was defined as IOP ≤18 mmHg and a ≥ 20% reduction in IOP without additional glaucoma surgery.Results: Twenty eyes from 19 patients were included. At the 12-month visit, mean IOP and mean number of IOP-lowering medications were significantly reduced as compared to baseline with an overall success rate of 65.0%.Conclusions: High-energy SLT appeared to be an effective and safe procedure for steroid-induced glaucoma with quiescent uveitis.


Asunto(s)
Glaucoma de Ángulo Abierto/cirugía , Glucocorticoides/efectos adversos , Terapia por Láser/métodos , Trabeculectomía/métodos , Uveítis/tratamiento farmacológico , Adolescente , Adulto , Anciano , Niño , Femenino , Glaucoma de Ángulo Abierto/inducido químicamente , Glaucoma de Ángulo Abierto/fisiopatología , Humanos , Presión Intraocular/fisiología , Láseres de Estado Sólido/uso terapéutico , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tonometría Ocular , Resultado del Tratamiento , Agudeza Visual/fisiología
16.
Int J Ophthalmol ; 14(12): 1970-1978, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34926216

RESUMEN

AIM: To compare the clinical efficacy and safety of non-penetrating glaucoma surgery (NPGS) plus phacoemulsification (Phaco-NPGS) and NPGS-alone. METHODS: We systematically searched various databases and reviewed studies that had evaluated the effects of Phaco-NPGS or NPGS-alone for patients with glaucoma. Primary outcomes included postoperative intraocular pressure (IOP) and the number of postoperative antiglaucoma medications. Secondary outcomes were the prevalence of complications, incidence of needling or goniopuncture, and surgical success rate. RESULTS: In total, 380 and 424 eyes in NPGS-alone and Phaco-NPGS groups respectively were included. Both postoperative IOP and number of medications were significantly lowered in the Phaco-NPGS group than that in the NPDS-alone group [weighted mean difference (WMD)=-1.12, 95% confidence interval (CI): -2.11 to -0.12, P=0.03; WMD=-0.31, 95%CI: -0.53 to -0.09, P=0.006]. Moreover, Phaco-NPGS had a significantly lower prevalence of complications and postoperative procedures compared to NPGS-alone, while no significant difference existed for surgical success. CONCLUSION: Phaco-NPGS superior to NPGS-alone in the reduction of IOP and medications. Phaco-NPGS can be recommended for glaucoma patients with coexisting cataracts owing to its superior efficacy, fewer complications, and postoperative procedures.

17.
Ocul Immunol Inflamm ; 29(3): 524-529, 2021 Apr 03.
Artículo en Inglés | MEDLINE | ID: mdl-31743043

RESUMEN

Purpose: To assess the characteristics of parafoveal microvascular abnormalities in Behcet's uveitis (BDU) using projection-resolved optical coherence tomographic angiography (PR-OCTA).Methods: A retrospective study of BDU patients who underwent PR-OCTA examination between April 1, 2017 and October 31, 2018.Results: Sixty consecutive BDU patients (102 eyes) were included. Sixty-two (124 eyes) healthy subjects served as normal controls (NCs). As compared with NCs, the vessel densities (VDs) of superficial and deep retinal capillary plexuses were decreased, and the fovea avascular zone area, perimeter and acircularity index were increased in BDU eyes (all p < .001). Macular edema (p < .001) and long uveitis course (p = .033) were identified as risk factors for capillary disruptions. Consistent VD reductions were observed in the quiescent fellow eyes of BDU patients during unilateral uveitis relapse.Conclusions: BDU patients had significant OCTA changes. Macular circulatory disturbances may exist in the quiescent fellow eyes during unilateral BDU attack.


Asunto(s)
Síndrome de Behçet/fisiopatología , Angiografía por Tomografía Computarizada , Fóvea Central/irrigación sanguínea , Enfermedades de la Retina/fisiopatología , Vasos Retinianos/patología , Tomografía de Coherencia Óptica , Adulto , Síndrome de Behçet/diagnóstico por imagen , Femenino , Angiografía con Fluoresceína , Humanos , Masculino , Enfermedades de la Retina/diagnóstico por imagen , Vasos Retinianos/diagnóstico por imagen , Estudios Retrospectivos , Agudeza Visual/fisiología
18.
Front Immunol ; 12: 589639, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33859633

RESUMEN

Interleukin (IL)33, a member of the IL1 superfamily, functions as a nuclear factor and mediates biological effects by interacting with the ST2 receptor. Recent studies have described IL33 as an emerging pro-inflammatory cytokine in the immune system, and IL33/ST2 gene polymorphisms have been implicated in the pathogenesis of various immune diseases. However, the underlying mechanisms of IL33/ST2 in Behcet's disease (BD) remain to be defined. Here, we investigated the association between IL33/ST2 gene polymorphisms and BD in 585 BD uveitis (BDU) patients and 834 healthy controls using Agena MassARRAY iPLEX platform. We found that rs3821204 was associated with the development of BDU. Moreover, the frequency of rs2210463 G allele was lower in patients with genital involvement. Association analysis revealed a much greater genetic difference between complete-type and incomplete-type BD groups, including three SNPs (rs7044343, rs1048274, and rs2210463). Our findings suggest that IL33/ST2 gene polymorphisms are involved in the pathogenesis of BDU. Different genetic backgrounds may exist in complete-type and incomplete-type BD patients.


Asunto(s)
Síndrome de Behçet/diagnóstico , Síndrome de Behçet/genética , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Proteína 1 Similar al Receptor de Interleucina-1/genética , Interleucina-33/genética , Polimorfismo de Nucleótido Simple , Alelos , Femenino , Estudios de Asociación Genética/métodos , Genotipo , Humanos , Masculino , Fenotipo
19.
Front Pharmacol ; 12: 699903, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34349656

RESUMEN

Purpose: To evaluate and compare the efficacy and safety of interferon alpha-2a (IFN-α2a) and cyclosporine-A (CsA) in patients with refractory Behçet's uveitis (BU). Methods: In this 12-month randomized, controlled, prospective trial, 26 participants (44 eyes) completed the study. Patients were randomly allocated to the IFN-α2a or CsA groups. All patients in both groups received a standardized prednisone burst and tapering schedule as per protocol. The primary outcome measures were response rate, complete remission rate, and tolerance rate. The secondary outcome measures included time to achieve complete remission, the logarithm of the minimum angle of resolution (logMAR) of best-corrected visual acuity (BCVA), and Behçet's disease ocular attack score 24 (BOS24). T-tests and non-parametric tests were used to compare quantitative variables, and chi-square tests were performed to compare qualitative variables. Results: The response and complete remission rates were 85.7% (12/14 patients) and 50.0% (7/14 patients) in the IFN-α2a group, compared with 66.7% (8/12 patients) and 25.0% (3/12 patients) in the CsA group, respectively (p > 0.05). Complete remission was achieved at 3.3 and 7.0 months after initiation of IFN-α2a and CsA (p = 0.023). LogMAR BCVA significantly improved 1 month after IFN-α2a initiation (23 eyes) (p = 0.002), and this beneficial effect remained statistically significant during the entire follow-up period (p < 0.05); however, this improvement was not observed in the CsA group (21 eyes). At the endpoint, LogMAR BCVA in the IFN-α2a group was significantly better (0.22 vs. 0.31, p = 0.031) with a higher improvement rate (60.9 vs. 47.6%, p > 0.05). Moreover, compared to the CsA group, more eyes in the IFN-α2a group had a lower BOS24 score (87.0 vs. 57.1%, p = 0.042). None of the patients had any side effects that influenced the medication adherence. Conclusion: Compared to CsA plus corticosteroid, IFN-α2a plus corticosteroid appears to induce a better treatment response, a significantly greater improvement in visual acuity, and more stable remission of intraocular inflammation in a 12-month study period.

20.
Ocul Immunol Inflamm ; 29(7-8): 1417-1423, 2021 Nov 17.
Artículo en Inglés | MEDLINE | ID: mdl-32407159

RESUMEN

Purpose: To analyze quantitative OCT-angiography (OCTA) measurements of Vogt-Koyanagi-Harada (VKH) disease at different disease stages.Methods: OCTA scans of 110 VKH patients in acute uveitic, convalescent and chronic recurrent stage were reviewed; posterior uveitis recurrent cases were excluded. Superficial and deep capillary plexus (SCP and DCP) vascular densities (VD) and subfoveal choroidal thickness (SFCT) were compared.Results: DCP VD was significantly lower and SFCT higher in VKH than normal controls (NC) in all 3 stages (all p < .001). Anterior uveitis recurrent patients had lower SCP and DCP VDs and thicker SFCT than convalescent patients (p = .001, p < .001, and p = .003, respectively). DCP VD was significantly correlated with visual acuity (p < .05). Patients with history of anterior recurrence had lower retinal VDs in the convalescent stage than those without (p < .001).Conclusion: Retinal microcirculation is impaired in VKH. DCP VD might be a sensitive indicator of inflammatory status and appeared to be well associated with visual outcome.


Asunto(s)
Angiografía por Tomografía Computarizada , Enfermedades de la Retina/fisiopatología , Vasos Retinianos/fisiopatología , Tomografía de Coherencia Óptica , Uveítis Anterior/fisiopatología , Síndrome Uveomeningoencefálico/fisiopatología , Trastornos de la Visión/fisiopatología , Adolescente , Adulto , Anciano , Niño , Coroides/irrigación sanguínea , Femenino , Humanos , Masculino , Microcirculación/fisiología , Persona de Mediana Edad , Enfermedades de la Retina/diagnóstico por imagen , Vasos Retinianos/diagnóstico por imagen , Estudios Retrospectivos , Uveítis Anterior/diagnóstico por imagen , Síndrome Uveomeningoencefálico/diagnóstico por imagen , Trastornos de la Visión/diagnóstico por imagen , Agudeza Visual/fisiología
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