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  1. Article ; Online: Prognostic Value of BAP1 and Preferentially Expressed Antigen in Melanoma (PRAME) Immunohistochemistry in Uveal Melanomas.

    Han, Lucy M / Lee, Kar Wan / Uludag, Gunay / Seider, Michael I / Afshar, Armin R / Bloomer, Michele M / Pekmezci, Melike

    Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc

    2023  Volume 36, Issue 4, Page(s) 100081

    Abstract: Uveal melanoma (UM) is the most common primary intraocular tumor in adults, and despite excellent local control, more than 50% of patients develop and die from metastatic disease. Loss of BAP1 nuclear staining, a surrogate marker of BAP1 mutation, and ... ...

    Abstract Uveal melanoma (UM) is the most common primary intraocular tumor in adults, and despite excellent local control, more than 50% of patients develop and die from metastatic disease. Loss of BAP1 nuclear staining, a surrogate marker of BAP1 mutation, and preferentially expressed antigen in melanoma (PRAME) messenger RNA overexpression, as assessed using qPCR, have previously been shown to correlate with increased metastasis rate in UM. In this study, we demonstrated that UM could be successfully risk-stratified using a combination of BAP1 and PRAME immunohistochemical (IHC) stains. We retrospectively reviewed 318 UM cases with sufficient tissue and performed BAP1 and PRAME IHC to stratify them as BAP1+/PRAME- (group 1, n = 135), BAP1+/PRAME+ (group 2, n = 43), BAP1-/PRAME- (group 3, n = 94), and BAP1-/PRAME+ (group 4, n = 46). Increasing the study risk group on the basis of loss of BAP1 expression and positive PRAME staining was associated with a higher rate of metastasis and disease-specific death and lower metastasis-free survival (MFS) and disease-specific survival (DSS). Among tumors with loss of BAP1 staining, PRAME positivity was associated with shorter MFS (P = .018) and showed a trend toward shorter DSS (P = .061). Among tumors with retained BAP1 staining, PRAME positivity was associated with shorter MFS and DSS (P = .001 and P = .021, respectively). In summary, a combination of BAP1 and PRAME IHC can be used for risk stratification of UMs.
    MeSH term(s) Adult ; Humans ; Prognosis ; Immunohistochemistry ; Retrospective Studies ; Tumor Suppressor Proteins/genetics ; Melanoma/pathology ; Uveal Neoplasms/metabolism ; Ubiquitin Thiolesterase/genetics ; Antigens, Neoplasm
    Chemical Substances Tumor Suppressor Proteins ; Ubiquitin Thiolesterase (EC 3.4.19.12) ; BAP1 protein, human ; PRAME protein, human ; Antigens, Neoplasm
    Language English
    Publishing date 2023-01-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 645073-8
    ISSN 1530-0285 ; 0893-3952
    ISSN (online) 1530-0285
    ISSN 0893-3952
    DOI 10.1016/j.modpat.2022.100081
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Risk factors for development of anti-adalimumab antibodies in non-infectious uveitis.

    Bromeo, Albert John / Karaca, Irmak / Ghoraba, Hashem H / Lyu, Xun / Than, Ngoc Trong Tuong / Ongpalakorn, Prapatsorn / Shin, Yong Un / Uludag, Gunay / Tran, Anh Ngoc Tram / Thng, Zheng Xian / Do, Diana V / Or, Chi Mong Christopher / Nguyen, Quan Dong

    Heliyon

    2024  Volume 10, Issue 9, Page(s) e29313

    Abstract: Purpose: To evaluate risk factors associated with development of anti-adalimumab antibodies (AAA) in patients with non-infectious uveitis treated with adalimumab.: Methods: A retrospective, cross-sectional, case-control study was done evaluating ... ...

    Abstract Purpose: To evaluate risk factors associated with development of anti-adalimumab antibodies (AAA) in patients with non-infectious uveitis treated with adalimumab.
    Methods: A retrospective, cross-sectional, case-control study was done evaluating patients with non-infectious uveitis treated with adalimumab for at least 12 months and have undergone testing for AAA levels. Demographics, clinical characteristics, grading of ocular inflammation, and previous and concomitant immunomodulatory therapy were assessed. Univariate and multivariate analysis were done to estimate odds ratio (OR) with 95% confidence intervals for the various risk factors.
    Results: A total of 31 patients were included in the analysis, in which 12 patients who tested positive (Group 1) were matched with 19 patients who tested negative for AAA (Group 2). The groups differed significantly in terms of sex (female) (91.7% vs 52.6%, p = 0.046), presence of systemic disease (91.7% vs 42.1%, p = 0.008), and presence of anterior chamber inflammation at baseline (100% vs 63.2%, p = 0.026). A history of interruption in anti-TNF therapy prior to starting or restarting adalimumab was found to have an increased odds for development of AAA (OR 16.89 [2.92, 107.11], p = 0.008), as well as flare-ups (reactivation of disease) during adalimumab therapy (OR 6.77 [1.80, 61.80], p = 0.027). Weekly dosing of adalimumab was shown to decrease odds of AAA development (OR 0.34 [0.02, 0.70], p = 0.040), while concomitant anti-metabolite therapy was not shown to be a statistically significant protective factor (OR 2.22 [0.50, 9.96], p = 0.148).
    Conclusions: History of interruption in anti-TNF therapy and flare during adalimumab were associated with development of AAA, while weekly dosing of adalimumab was protective against AAA. Identification of those with higher risk of developing AAA may guide in clinical decision making to optimize management for these patients.
    Language English
    Publishing date 2024-04-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e29313
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Unilateral paraneoplastic optic disc edema and retinal periphlebitis in pineal germinoma.

    Uludag, Gunay / Onay, Aslihan / Onal, Sumru

    American journal of ophthalmology case reports

    2018  Volume 10, Page(s) 236–239

    Abstract: Purpose: To describe a unilateral ocular paraneoplastic syndrome in pineal germinoma.: Observations: A 24-year-old male presented with diplopia, excessive thirst, and frequent urination. Cranial MRI showed a mass in pineal gland. Dorsal midbrain ... ...

    Abstract Purpose: To describe a unilateral ocular paraneoplastic syndrome in pineal germinoma.
    Observations: A 24-year-old male presented with diplopia, excessive thirst, and frequent urination. Cranial MRI showed a mass in pineal gland. Dorsal midbrain syndrome signs were present. Examination showed optic disc edema and segmental retinal periphlebitis in right and normal fundus in left eye. Rheumatologic work-up was negative. Brain biopsy confirmed pineal germinoma. Retinal findings were attributed to paraneoplastic syndrome. Resolution of optic disc edema and retinal periphlebitis occurred following chemotherapy and focal irradiation.
    Conclusions: and importance: To date there are two published case reports on bilateral optic disc edema and retinal periphlebitis occurring as a paraneoplastic syndrome in pineal germinoma. This is the first report on a patient with pineal germinoma who had unilateral paraneoplastic involvement characterized by optic disc edema and retinal periphlebitis and who showed complete resolution of ocular disease after treatment of underlying tumor.
    Language English
    Publishing date 2018-03-13
    Publishing country United States
    Document type Case Reports
    ISSN 2451-9936
    ISSN (online) 2451-9936
    DOI 10.1016/j.ajoc.2018.03.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Fundus topographical distribution patterns of ocular toxoplasmosis.

    Hasanreisoglu, Murat / Halim, Muhammad Sohail / Cakar Ozdal, Pinar / Ormaechea, Maria Soledad / Kesim, Cem / Ozdemir, Huseyin Baran / Uludag, Gunay / Sredar, Nripun / Cankurtaran, Mahmut / Liu, Xiaoxuan / Denniston, Alastair Keith / Rudzinski, Marcelo N / Colombero, Daniel N / Schlaen, Bernardo Ariel / Keane, Pearse Andrew / Pavesio, Carlos / Nguyen, Quan Dong

    The British journal of ophthalmology

    2024  Volume 108, Issue 4, Page(s) 530–535

    Abstract: Background: To establish topographic maps and determine fundus distribution patterns of ocular toxoplasmosis (OT) lesions.: Methods: In this retrospective study, patients who presented with OT to ophthalmology clinics from four countries (Argentina, ... ...

    Abstract Background: To establish topographic maps and determine fundus distribution patterns of ocular toxoplasmosis (OT) lesions.
    Methods: In this retrospective study, patients who presented with OT to ophthalmology clinics from four countries (Argentina, Turkey, UK, USA) were included. Size, shape and location of primary (1°)/recurrent (2°) and active/inactive lesions were converted into a two-dimensional retinal chart by a retinal drawing software. A final contour map of the merged image charts was then created using a custom Matlab programme. Descriptive analyses were performed.
    Results: 984 lesions in 514 eyes of 464 subjects (53% women) were included. Mean area of all 1° and 2° lesions was 5.96±12.26 and 5.21±12.77 mm
    Conclusion: The 1° lesions were larger than 2° lesions. The 2° lesions were not significantly closer to fovea than 1° lesions. Temporal quadrant and macular region were found to be densely affected underlining the vision threatening nature of the disease.
    MeSH term(s) Humans ; Female ; Male ; Toxoplasmosis, Ocular/diagnosis ; Retrospective Studies ; Retina ; Fundus Oculi ; Fovea Centralis
    Language English
    Publishing date 2024-03-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 80078-8
    ISSN 1468-2079 ; 0007-1161
    ISSN (online) 1468-2079
    ISSN 0007-1161
    DOI 10.1136/bjo-2022-322747
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Birdshot Chorioretinopathy in Early Adulthood: Review of Current Literature and Case Report.

    Pham, Brandon Huy / Uludag, Gunay / Hien, Doan Luong / Than, Ngoc Trong Tuong / Hwang, Jaclyn Joyce / Akhavanrezayat, Amir / Matsumiya, Wataru / Lajevardi, Sherin / Regenold, Jonathan / Halim, Muhammad Sohail / Nguyen, Quan Dong

    International medical case reports journal

    2023  Volume 16, Page(s) 815–831

    Abstract: Purpose: We describe the course of a patient diagnosed with birdshot chorioretinopathy (BSCR) in early adulthood and summarize clinical findings from similar BSCR patients reported in the literature.: Observations: A 37-year-old male presented to our ...

    Abstract Purpose: We describe the course of a patient diagnosed with birdshot chorioretinopathy (BSCR) in early adulthood and summarize clinical findings from similar BSCR patients reported in the literature.
    Observations: A 37-year-old male presented to our tertiary uveitis facility with bilateral ocular discomfort, hazy vision, and floaters. Ocular examination was notable for vitritis, optic disc edema, and ovoid hypopigmented chorioretinal lesions, visible on indocyanine green chorioangiography as multiple hypocyanescent spots in the intermediate phase. Full-field electroretinography and visual evoked potential showed global retinal dysfunction and optic nerve dysfunction. Laboratory evaluations were notable only for human leukocyte antigen (HLA)-A29 positivity. The patient was diagnosed with BSCR and started on oral prednisone and eventually managed with infliximab.
    Conclusions and importance: BSCR can affect patients in early adulthood. Proper diagnostic work-up, including assessing HLA-A29 positivity, is needed to manage atypical cases.
    Language English
    Publishing date 2023-12-11
    Publishing country New Zealand
    Document type Case Reports
    ZDB-ID 2495077-4
    ISSN 1179-142X
    ISSN 1179-142X
    DOI 10.2147/IMCRJ.S430981
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Posterior Segment Ocular Findings in HLA-B27 Positive Patients with Uveitis: A Retrospective Analysis.

    Or, Chris / Lajevardi, Sherin / Ghoraba, Hashem / Park, Jung Hyun / Onghanseng, Neil / Halim, Muhammad Sohail / Hasanreisoglu, Murat / Hassan, Muhammad / Uludag, Gunay / Akhavanrezayat, Amir / Nguyen, Quan Dong

    Clinical ophthalmology (Auckland, N.Z.)

    2023  Volume 17, Page(s) 1271–1276

    Abstract: Purpose: To describe the prevalence and characteristics of posterior segment manifestations in patients with HLA-B27-associated uveitis using wide field imaging.: Methods: Medical records of patients diagnosed with HLA-B27-associated uveitis from a ... ...

    Abstract Purpose: To describe the prevalence and characteristics of posterior segment manifestations in patients with HLA-B27-associated uveitis using wide field imaging.
    Methods: Medical records of patients diagnosed with HLA-B27-associated uveitis from a tertiary uveitis clinic were reviewed. Posterior segment involvements including but not limited to peripheral vasculitis, optic disc inflammation, and macula edema documented based on medical records and various imaging modalities including wide field fluorescein angiography and optical coherence tomography, were noted. Demographic characteristics, accompanied with systemic diseases as well as duration and chronicity of uveitis, were also evaluated. Patients with significant systemic and ocular comorbidities were excluded. Statistical analyses including chi-squared tests and paired
    Results: Of the 44 patients with HLA-B27 associated uveitis, 22 patients (50%) were noted to demonstrate posterior segment involvement. Disc leakage and peripheral vasculitis were the most common findings of posterior involvement. Those with anterior chamber inflammation were found to have a significantly increased risk of posterior involvement. Those with posterior involvement were also noted to have a statistically significant decreased visual acuity. No significant association was found between documented duration of disease and posterior segment involvement.
    Conclusion: The prevalence of posterior segment involvement in HLA-B27 associated uveitis is higher compared to previous reports when evaluated with wide angle imaging modalities. Careful examination of the posterior segment is required in patients with HLA-B27 associated uveitis.
    Language English
    Publishing date 2023-05-01
    Publishing country New Zealand
    Document type Journal Article
    ISSN 1177-5467
    ISSN 1177-5467
    DOI 10.2147/OPTH.S408728
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: ASSOCIATION OF ORAL MONTELUKAST WITH REDUCED ODDS OF DEVELOPING EXUDATIVE AGE-RELATED MACULAR DEGENERATION.

    Matsumiya, Wataru / Karaca, Irmak / Pham, Brandon Huy / Akhavanrezayat, Amir / Uludag, Gunay / Yasar, Cigdem / Ghoraba, Hashem / Mobasserian, Azadeh / Regenold, Jonathan / Halim, Muhammad Sohail / Sepah, Yasir J / Do, Diana V / Chong, Victor / Nguyen, Quan Dong

    Retina (Philadelphia, Pa.)

    2023  Volume 43, Issue 11, Page(s) 1914–1921

    Abstract: Purpose: This study was conducted to evaluate the association of oral montelukast, selective antagonism for cysteinyl leukotriene receptor 1, with reduced odds of exudative age-related macular degeneration (exAMD) development.: Methods: This case- ... ...

    Abstract Purpose: This study was conducted to evaluate the association of oral montelukast, selective antagonism for cysteinyl leukotriene receptor 1, with reduced odds of exudative age-related macular degeneration (exAMD) development.
    Methods: This case-control study was conducted using institutional cohort finder tool, and included 1913 patients with exAMD (ICD: H35.32 and 362.52) and 1913 age- and gender-matched control subjects without exAMD. Subanalysis among 1913 exAMD and 324 nonexudative AMD was also conducted.
    Results: A total of 47 (2.5%) exAMD cases were identified to have a history of oral montelukast use before exAMD diagnosis, compared with 84 (4.4%) controls. Montelukast usage was significantly associated with reduced odds of exAMD in the multivariable analysis (adjusted odds ratio [OR]: 0.50, 95% confidence interval: 0.31-0.80) and nonsteroidal anti-inflammatory drug usage (adjusted OR: 0.69). Caucasian race, history of smoking, and nonexudative macular degeneration in either eye were also found to have a significant relationship with increased odds of exAMD. In the subanalysis, montelukast usage showed significant association with reduced odds of developing exAMD from nonexudative AMD (adjusted OR: 0.53, 95% confidence interval: 0.29-0.97) and the presence of atopic disease (adjusted OR: 0.60).
    Conclusion: The study results suggested that oral montelukast is linked to reduced odds of exAMD development.
    MeSH term(s) Humans ; Case-Control Studies ; Smoking ; Macular Degeneration/diagnosis
    Chemical Substances montelukast (MHM278SD3E)
    Language English
    Publishing date 2023-06-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603192-4
    ISSN 1539-2864 ; 0275-004X
    ISSN (online) 1539-2864
    ISSN 0275-004X
    DOI 10.1097/IAE.0000000000003870
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Current concepts in the diagnosis and management of antiphospholipid syndrome and ocular manifestations.

    Uludag, Gunay / Onghanseng, Neil / Tran, Anh N T / Hassan, Muhammad / Halim, Muhammad Sohail / Sepah, Yasir J / Do, Diana V / Nguyen, Quan Dong

    Journal of ophthalmic inflammation and infection

    2021  Volume 11, Issue 1, Page(s) 11

    Abstract: Antiphospholipid syndrome (APS) is an autoimmune disorder associated with obstetrical complications, thrombotic complications involving both arteries and veins, and non-thrombotic manifestations affecting multiple other systems presenting in various ... ...

    Abstract Antiphospholipid syndrome (APS) is an autoimmune disorder associated with obstetrical complications, thrombotic complications involving both arteries and veins, and non-thrombotic manifestations affecting multiple other systems presenting in various clinical forms. Diagnosis requires the presence of antiphospholipid antibodies. The exact pathogenesis of APS is not fully known. However, it has recently been shown that activation of different types of cells by antiphospholipid antibodies plays an important role in thrombosis formation. Ocular involvement is one of the important clinical manifestations of APS and can vary in presentations. Therefore, as an ophthalmologist, it is crucial to be familiar with the ocular findings of APS to prevent further complications that can develop. Furthermore, the ongoing identification of new and specific factors contributing to the pathogenesis of APS may provide new therapeutic options in the management of the disease in the future.
    Language English
    Publishing date 2021-04-09
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2592309-2
    ISSN 1869-5760
    ISSN 1869-5760
    DOI 10.1186/s12348-021-00240-8
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  9. Article ; Online: Distinct Patterns of Choroidal Lesions in Punctate Inner Choroidopathy and Multifocal Choroiditis Determined by Heatmap Analysis.

    Park, Jong G / Halim, Muhammad Sohail / Uludag, Gunay / Onghanseng, Neil / Sredar, Nripun / Sepah, Yasir J / Nguyen, Quan Dong

    Ocular immunology and inflammation

    2021  Volume 30, Issue 2, Page(s) 276–281

    Abstract: Purpose: A heatmap analysis of choroidal lesions in patients with punctate inner choroidopathy (PIC) or multifocal choroiditis (MFC) with or without uveitis was performed to determine if there were any distinguishing features among these uveitic ... ...

    Abstract Purpose: A heatmap analysis of choroidal lesions in patients with punctate inner choroidopathy (PIC) or multifocal choroiditis (MFC) with or without uveitis was performed to determine if there were any distinguishing features among these uveitic entities.
    Methods: Retrospective review of medical records was conducted at the Byers Eye Institute, Stanford. Fundus photographs were masked and placed on a standardized template. Lesions were identified and heatmaps were generated in a standardized fashion.
    Results: 30 eyes were identified with PIC or MFC. Heatmap analysis revealed three distinct patterns of fundus lesions: posterior, peripheral, and combined. All patients with PIC had the posterior pattern. Patients with MFC had the peripheral or combined pattern, and all patients with MFC with uveitis had the combined pattern.
    Conclusion: Three patterns of fundus lesions were identified in patients with PIC and MFC. PIC and MFC may represent two separate disease entities with distinct phenotypes of choroidal lesions.
    MeSH term(s) Choroidal Neovascularization ; Choroiditis/diagnosis ; Fluorescein Angiography ; Humans ; Multifocal Choroiditis ; Retrospective Studies ; Tomography, Optical Coherence ; Visual Acuity ; White Dot Syndromes
    Language English
    Publishing date 2021-07-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 1193873-0
    ISSN 1744-5078 ; 0927-3948
    ISSN (online) 1744-5078
    ISSN 0927-3948
    DOI 10.1080/09273948.2021.1939391
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  10. Article: Persistence of Retinopathy of Prematurity in an Infant with Tetralogy of Fallot.

    Gunay, Murat / Yavuz, Taner / Celik, Gokhan / Uludag, Gunay

    Case reports in pediatrics

    2016  Volume 2016, Page(s) 7070316

    Abstract: We report an infant with tetralogy of fallot (TOF) who was born at 35 weeks of gestation and of 1700 g birth weight and presented with persistent retinopathy of prematurity (ROP) at 6 months of age. Follow-up ophthalmic examinations were done at 2, 3, ... ...

    Abstract We report an infant with tetralogy of fallot (TOF) who was born at 35 weeks of gestation and of 1700 g birth weight and presented with persistent retinopathy of prematurity (ROP) at 6 months of age. Follow-up ophthalmic examinations were done at 2, 3, and 4 weeks of age. A demarcation line in Zone II was noticed on the first ocular examination done at 4 weeks of postnatal age. At 6 months of postnatal age, the infant still had an avascular peripheral retina with the demarcation line in Zone II. Even though this index subject did not have any typical risk factors for ROP, TOF seems to be the probable reason for developing as well as persistence of avascular retina.
    Language English
    Publishing date 2016-07-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2659094-3
    ISSN 2090-6811 ; 2090-6803
    ISSN (online) 2090-6811
    ISSN 2090-6803
    DOI 10.1155/2016/7070316
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