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1.
J Ophthalmol ; 2022: 4857696, 2022.
Article in English | MEDLINE | ID: mdl-35903174

ABSTRACT

Background: Since the advent of cataract surgery, topical eye drops have been the mainstay of postoperative prophylaxis and treatment. Due to factors such as high expenses and poor patient compliance, there has been a growing interest and acceptance of "dropless" or "less drops" alternatives. The purpose of this study is to compare the effectiveness of intravitreal triamcinolone acetonide-moxifloxacin and intracameral dexamethasone-moxifloxacin-ketorolac to a standard eye drop regimen in controlling postoperative inflammation, corneal edema, and intraocular pressure (IOP) among cataract patients. Methods: A retrospective longitudinal comparative study among 619 consecutive eyes receiving either a standard eye drop regimen, intraoperative triamcinolone acetonide-moxifloxacin, or dexamethasone-moxifloxacin-ketorolac was performed between October 2016 and December 2020. Primary endpoints at postoperative day one (POD1), week one (POW1), and month one (POM1) included corneal edema, anterior chamber inflammation (ACI), and IOP. Results: Throughout the postoperative time points, there were no significant differences in corneal edema between intravitreal triamcinolone acetonide-moxifloxacin versus the standard eye drop therapy (OR [95% CI]: 1.09 [0.82, 1.45], P=0.54) and intracameral dexamethasone-moxifloxacin-ketorolac versus the standard eye drop treatment (OR [95% CI]: 1.22 [0.89, 1.67], P=0.22). The postoperative ACI severity was lower in the dexamethasone-moxifloxacin-ketorolac group than in the triamcinolone acetonide-moxifloxacin group by 35% on postoperative day 1 (P=0.01). The differences at subsequent postoperative time points were not statistically significant (P=0.27 and P=1.00 for POW1 and POM1, respectively). IOP at POM1 follow-up visit was statistically significantly higher for the triamcinolone acetonide-moxifloxacin group (mean (±SD): 15.64 (4.26)) than the dexamethasone-moxifloxacin-ketorolac (mean (±SD): 14.16 (4.02)) (P < 0.01). There was no statistical difference in rates of CME (P=0.16), and there were no cases of endophthalmitis. Conclusions: Intravitreal triamcinolone acetonide-moxifloxacin and intracameral dexamethasone-moxifloxacin-ketorolac demonstrate similar levels of efficacy to a standard eye drop regimen after cataract surgery. This study reinforces them as viable alternatives to traditional postoperative drops.

2.
Sci Rep ; 12(1): 7357, 2022 05 05.
Article in English | MEDLINE | ID: mdl-35513494

ABSTRACT

To compare the predictive refractive accuracy of intraoperative aberrometry (ORA) to the preoperative Barrett True-K formula in the calculation of intraocular lens (IOL) power in eyes with prior refractive surgery undergoing cataract surgery at the Loma Linda University Eye Institute, Loma Linda, California, USA. We conducted a retrospective chart review of patients with a history of post-myopic or hyperopic LASIK/PRK who underwent uncomplicated cataract surgery between October 2016 and March 2020. Pre-operative measurements were performed utilizing the Barrett True-K formula. Intraoperative aberrometry (ORA) was used for aphakic refraction and IOL power calculation during surgery. Predictive refractive accuracy of the two methods was compared based on the difference between achieved and intended target spherical equivalent. A total of 97 eyes (69 patients) were included in the study. Of these, 81 eyes (83.5%) had previous myopic LASIK/PRK and 16 eyes (16.5%) had previous hyperopic LASIK/PRK. Median (MedAE)/mean (MAE) absolute prediction errors for preoperative as compared to intraoperative methods were 0.49 D/0.58 D compared to 0.42 D/0.51 D, respectively (P = 0.001/0.002). Over all, ORA led to a statistically significant lower median and mean absolute error compared to the Barrett True-K formula in post-refractive eyes. Percentage of eyes within ± 1.00 D of intended target refraction as predicted by the preoperative versus the intraoperative method was 82.3% and 89.6%, respectively (P = 0.04). Although ORA led to a statistically significant lower median absolute error compared to the Barrett True-K formula, the two methods are clinically comparable in predictive refractive accuracy in patients with prior refractive surgery.


Subject(s)
Cataract , Hyperopia , Keratomileusis, Laser In Situ , Lenses, Intraocular , Myopia , Phacoemulsification , Aberrometry/methods , Biometry/methods , Humans , Hyperopia/surgery , Myopia/surgery , Optics and Photonics , Refraction, Ocular , Retrospective Studies
3.
Am J Ophthalmol ; 221: 273-278, 2021 01.
Article in English | MEDLINE | ID: mdl-32777376

ABSTRACT

OBJECTIVE: To report clinical features and visual outcomes following eyelet fractures of scleral-sutured enVista MX60 (Bausch + Lomb) intraocular lenses (IOL). DESIGN: Retrospective, multi-center, multi-surgeon, observational case series. METHODS: Study Population: Patients with scleral-sutured enVista MX60 IOLs that experienced either an intraoperative or post-operative eyelet fracture associated with dislocation or subluxation. PROCEDURES: All records were reviewed for patients with a dislocated or subluxed scleral-sutured enVista MX60 IOL. Clinical features and outcomes were gathered. Main Outcome Measures: Clinical setting, surgical technique, complications, and visual acuity. RESULTS: A total of 25 scleral-sutured enVista MX60 IOLs displacements secondary to eyelet fractures in 23 eyes of 23 patients were included. There were 20 IOLs that sustained a postoperative fracture and 5 IOLs that sustained an intraoperative fracture. Of the postoperative fractures, 7 were dislocated and 13 were subluxed. Gore-Tex was the suture of choice for 19 of the postoperative fractures and all 5 of the intraoperative fractures, and Prolene was used for 1 postoperative fracture. The mean time until postoperative fracture was 96 ± 125 days, and the median time was 61 (IQR 48-144) days. Of the postoperative fractures, new MX60s were sutured in 10 patients, and 2 of them experienced repeat displacements due to a new eyelet fracture. In the intraoperative fracture group, new MX60s were sutured in 4 patients and an Akreos AO60 lens was placed in the 5th patient. The mean preoperative best-corrected logMAR visual acuity for all patients improved from 1.2 ± 0.8 (20/317 Snellen equivalent) to 0.5 ± 0.5 (20/63 Snellen equivalent) at most recent follow-up after lens replacement. CONCLUSIONS: Scleral-sutured MX60 intraocular lenses can experience intraoperative or postoperative eyelet fractures, resulting in lens subluxation or dislocation. Surgeons should be aware of this complication when evaluating secondary intraocular lens options.


Subject(s)
Artificial Lens Implant Migration/etiology , Intraoperative Complications , Lens Implantation, Intraocular/methods , Postoperative Complications , Prosthesis Failure/etiology , Sclera/surgery , Suture Techniques , Adult , Aged , Aged, 80 and over , Artificial Lens Implant Migration/diagnosis , Female , Follow-Up Studies , Humans , Male , Middle Aged , Phacoemulsification , Retrospective Studies , Time Factors , Visual Acuity/physiology , Vitrectomy
4.
J Cataract Refract Surg ; 45(6): 760-765, 2019 06.
Article in English | MEDLINE | ID: mdl-30850125

ABSTRACT

PURPOSE: To compare the effectiveness of intravitreal injection of triamcinolone acetonide-moxifloxacin (Tri-Moxi) to a standard eyedrop regimen in controlling postoperative inflammation, corneal edema, and the rate of high intraocular pressure (IOP) among cataract patients. SETTING: Loma Linda University Eye Institute, California, USA. DESIGN: Retrospective longitudinal comparative study. METHODS: The electronic medical records of patients who underwent cataract surgery using triamcinolone acetonide-moxifloxacin injection along with a postoperative nonsteroidal antiinflammatory drug drop were reviewed (Group 1). Group 1 was compared with patients who received a standard eyedrop (Group 2) in terms of intraocular inflammation and corneal edema severity, and the rate of high IOP, postoperatively. RESULTS: A total of 1195 consecutive eyes (Group 1 [681 eyes], Group 2 [514 eyes]) of 919 patients were included in the study. The anterior chamber cell reaction severity decreased by 34.0% and 35.7% at 1 week and 1 month, respectively, after surgery following triamcinolone acetonide-moxifloxacin injection compared with standard eyedrop therapy (P = .001 and P = .02, respectively). Group 1 was associated with increased severity of corneal edema (odds ratio, 1.48; P = .001) on postoperative day 1, with no statistically significant difference at 1 week and 1 month postoperatively (P = .25 and P = .48, respectively). There was no statistically significant difference in the rate of high IOP between the two groups at different timepoints postoperatively. CONCLUSIONS: Triamcinolone acetonide-moxifloxacin injection is an effective method to control intraocular inflammation after cataract surgery. It is a promising substitute for standard eyedrop therapy, especially for patients who have poor compliance with eyedrop usage.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Glucocorticoids/therapeutic use , Lens Implantation, Intraocular , Moxifloxacin/therapeutic use , Phacoemulsification , Postoperative Complications/prevention & control , Triamcinolone Acetonide/therapeutic use , Administration, Ophthalmic , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Corneal Edema/drug therapy , Drug Combinations , Female , Humans , Inflammation/drug therapy , Intraocular Pressure/drug effects , Intravitreal Injections , Male , Middle Aged , Ophthalmic Solutions , Retrospective Studies
5.
PLoS One ; 12(9): e0185052, 2017.
Article in English | MEDLINE | ID: mdl-28934326

ABSTRACT

This study aimed to determine the role of electronic health record software in resident education by evaluating documentation of 30 elements extracted from the American Academy of Ophthalmology Dry Eye Syndrome Preferred Practice Pattern. The Kresge Eye Institute transitioned to using electronic health record software in June 2013. We evaluated the charts of 331 patients examined in the resident ophthalmology clinic between September 1, 2011, and March 31, 2014, for an initial evaluation for dry eye syndrome. We compared documentation rates for the 30 evidence-based elements between electronic health record chart note templates among the ophthalmology residents. Overall, significant changes in documentation occurred when transitioning to a new version of the electronic health record software with average compliance ranging from 67.4% to 73.6% (p < 0.0005). Electronic Health Record A had high compliance (>90%) in 13 elements while Electronic Health Record B had high compliance (>90%) in 11 elements. The presence of dialog boxes was responsible for significant changes in documentation of adnexa, puncta, proptosis, skin examination, contact lens wear, and smoking exposure. Significant differences in documentation were correlated with electronic health record template design rather than individual resident or residents' year in training. Our results show that electronic health record template design influences documentation across all resident years. Decreased documentation likely results from "mouse click fatigue" as residents had to access multiple dialog boxes to complete documentation. These findings highlight the importance of EHR template design to improve resident documentation and integration of evidence-based medicine into their clinical notes.


Subject(s)
Documentation , Electronic Health Records , Evidence-Based Medicine , Internship and Residency , Physicians , Software Design , Documentation/methods , Dry Eye Syndromes/therapy , Evidence-Based Medicine/methods , Female , Guideline Adherence , Humans , Male , Middle Aged , Ophthalmology/education , Practice Patterns, Physicians'
6.
J Glaucoma ; 25(12): 963-967, 2016 12.
Article in English | MEDLINE | ID: mdl-27898580

ABSTRACT

PURPOSE: To study resident compliance with the American Academy of Ophthalmology (AAO) Preferred Practice Patterns (PPPs) for primary open-angle glaucoma suspect (POAGS) in a resident ophthalmology clinic. PATIENTS AND METHODS: Two hundred charts were selected for analysis of adult patients with the International Classification of Diseases diagnosis code for POAGS during their initial visit between November 2, 2010 and May 6, 2014 at the Kresge Eye Institute resident clinic. Electronic medical records of clinic visits for POAGS patients were evaluated for documentation and compliance with 17 elements of AAO PPPs. RESULTS: The overall mean compliance was 73.8% for all charts (n=200), 74.4% for first-year residents (n=53), 74.5% for second-year residents (n=38), and 73.3% for third-year residents (n=109). Documentation rates were high (>90%) for 9 elements, which included most elements of physical examination and history. Documentation of ocular history, central corneal thickness, gonioscopy, optic nerve head and retinal nerve fiber layer analysis, and visual field ranged from 40% to 80%. Documentation was lowest for patient education elements which ranged from 0% to 10%. Compliance was not significantly different (P>0.05) between residents or between different resident years for any element. CONCLUSIONS: Residents' compliance was high for most elements of the PPPs for POAGS. We identified elements with poor compliance especially regarding patient education. Adherence to AAO PPPs can be a helpful method of assessing resident performance.


Subject(s)
Academies and Institutes , Education, Medical, Graduate/standards , Glaucoma, Open-Angle/diagnosis , Guideline Adherence , Internship and Residency/standards , Ophthalmology/education , Practice Patterns, Physicians' , Adult , Aged , Aged, 80 and over , Female , Humans , Intraocular Pressure , Male , Middle Aged , Physicians/standards , United States , Visual Fields , Young Adult
7.
Ophthalmology ; 123(1): 165-77, 2016 Jan.
Article in English | MEDLINE | ID: mdl-26545318

ABSTRACT

PURPOSE: To compare repeat penetrating keratoplasty (PK) with Boston type I keratoprosthesis (KPro) implantation for full-thickness donor corneal graft failure. DESIGN: Previous donor graft failure is a common indication for both PK and KPro implantation. Selection of the surgical procedure is entirely dependent on the surgeon because there are no studies available for guidance. Therefore, a systematic review was undertaken to examine vision, device retention, graft clarity, and postoperative glaucoma and infection outcomes after repeat PK versus KPro implantation. METHODS: Articles with data regarding repeat PK published between 1990 and 2014 were identified in PubMed, EMBASE, the Latin American and Caribbean Health Sciences Literature Database, and the Cochrane Central Register of Controlled Trials and were reviewed. Results were compared with a retrospective review of consecutive, nonrandomized, longitudinal case series of KPro implantations performed at 5 tertiary care centers in the United States. Visual acuity at 2 years was the primary outcome measure. The proportion of clear grafts in the repeat PK group, device retention in the KPro group, and the development of postoperative glaucoma and infection were secondary outcome measures. RESULTS: The search strategy identified 17 128 articles in the PK analysis. After screening, 26 studies (21 case series and 5 cohort studies) were included in the review. Pooled analysis of the 26 unique studies demonstrated a 42% (95% confidence interval [CI], 30%-56%) likelihood of maintaining 20/200 or better at 2 years after repeat PK, compared with an 80% (95% CI, 68%-88%) probability with KPro implantation. The probability of maintaining a clear graft at 5 years was 47% (95% CI, 40%-54%) after repeat PK, whereas the probability of retention of the KPro at 5 years was 75% (95% CI, 64%-84%). The rate of progression of glaucoma at 3 years was 25% (95% CI, 10%-44%) after repeat PK and 30% in the KPro cohort. CONCLUSIONS: These results demonstrate favorable outcomes of KPro surgery for donor corneal graft failure with a greater likelihood of maintaining visual improvement without higher risk of postoperative glaucoma compared with repeat donor PK.


Subject(s)
Artificial Organs , Corneal Diseases/surgery , Graft Rejection/surgery , Graft Survival , Keratoplasty, Penetrating/methods , Prostheses and Implants , Humans , Reoperation , Visual Acuity
8.
Cornea ; 34(3): 285-9, 2015 Mar.
Article in English | MEDLINE | ID: mdl-25625364

ABSTRACT

PURPOSE: The aim of this study was to determine intertest variability of measurements taken by the Pentacam tomographer in eyes with keratoconus. METHODS: Three Pentacam measurements with 1-minute intervals were taken from 101 eyes (81 keratoconus and 20 controls) from 57 patients (47 keratoconus and 10 controls) by the same examiner and under the same conditions. Keratoconus eyes were divided into 3 subgroups based on topographic astigmatism (TA). Variability in astigmatism, mean keratometry, central corneal thickness, and fixation values were compared within the patient subgroups versus normal controls. RESULTS: Variability of all studied parameters (astigmatism, mean keratometry, central corneal thickness, and fixation values) increased with increasing TA in patients with keratoconus. CONCLUSIONS: Pentacam measurements show increased variability in patients with keratoconus. The degree of variability correlates with TA.


Subject(s)
Corneal Topography/methods , Keratoconus/pathology , Photography/instrumentation , Tomography/instrumentation , Adolescent , Adult , Aged , Aged, 80 and over , Astigmatism/pathology , Case-Control Studies , Cornea/pathology , Female , Fixation, Ocular , Humans , Male , Middle Aged , Young Adult
9.
Expert Rev Ophthalmol ; 10(4): 383-392, 2015.
Article in English | MEDLINE | ID: mdl-28446923

ABSTRACT

The cornea is the most densely innervated mammalian tissue. The sensory nerves are responsible for sensations of dryness, temperature, touch, and pain, and play important roles in the blink reflex, wound healing, and tear production. Many ocular and systemic diseases can adversely affect corneal sensory nerve and consequently impair their function. One of such systemic diseases is diabetes mellitus (DM) which causes sensory degeneration, neurotrophic keratopathy (DNK), and delayed wound healing. In this review, we summarize recent discoveries revealing mechanisms underlying the pathogenesis of DNK and the impairment of sensory nerve regeneration in post wound diabetic corneas in using animal model of human diabetes. Because it is generally believed that common mechanisms are operative in the pathogenesis of diabetic peripheral neuropathy in different tissues, the findings in the corneas have implications in in other tissues such as the skin, which often leads to foot ulceration and amputation in diabetic patients.

10.
Cochrane Database Syst Rev ; (11): CD009561, 2014 Nov 05.
Article in English | MEDLINE | ID: mdl-25372407

ABSTRACT

BACKGROUND: Individuals who have failed one or more full thickness penetrating keratoplasties (PKs) may be offered repeat corneal surgery using an artificial or donor cornea. An artificial or prosthetic cornea is known as a keratoprosthesis. Both donor and artificial corneal transplantations involve removal of the diseased and opaque recipient cornea (or the previously failed cornea) and replacement with another donor or prosthetic cornea. OBJECTIVES: To assess the effectiveness of artificial versus donor corneas in individuals who have had one or more failed donor corneal transplantations. SEARCH METHODS: We searched CENTRAL (which contains the Cochrane Eyes and Vision Group Trials Register) (2013, Issue 10), Ovid MEDLINE, Ovid MEDLINE In-Process and Other Non-Indexed Citations, Ovid MEDLINE Daily, Ovid OLDMEDLINE (January 1946 to November 2013), EMBASE (January 1980 to November 2013), Latin American and Caribbean Health Sciences Literature Database (LILACS) (January 1982 to November 2013), the metaRegister of Controlled Trials (mRCT) (www.controlled-trials.com), ClinicalTrials.gov (www.clinicaltrials.gov) and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en). We did not use any date or language restrictions in the electronic searches for trials. We last searched the electronic databases on 27 November 2013. SELECTION CRITERIA: Two review authors independently assessed reports from the electronic searches to identify randomized controlled trials (RCTs) or controlled clinical trials (CCTs). We resolved discrepancies by discussion or consultation with a third review author. DATA COLLECTION AND ANALYSIS: For discussion purposes, we assessed findings from observational cohort studies and non-comparative case series. No data synthesis was performed. MAIN RESULTS: We did not identify any RCTs or CCTs comparing artificial corneas with donor corneas for repeat corneal transplantations. AUTHORS' CONCLUSIONS: The optimal management for those individuals who have failed a conventional corneal transplantation is not known. Currently, in some centers, artificial corneal devices routinely are recommended after just one graft failure, and in others, not until after multiple graft failures, or not at all. To date, there have been no controlled trials comparing the visual outcomes and complications of artificial corneal devices (particularly the Boston type 1 keratoprosthesis which is the most commonly implanted artificial corneal device) with repeat donor corneal transplantation, in order to guide surgeons and their patients. It is apparent that such a trial is needed and would offer significant benefit to an ever-increasing pool of people with visual disability due to corneal opacification, most of whom are still in productive stages of their lives.


Subject(s)
Artificial Organs , Cornea , Corneal Transplantation , Adult , Humans , Reoperation
11.
J Cataract Refract Surg ; 40(7): 1131-8, 2014 Jul.
Article in English | MEDLINE | ID: mdl-24957433

ABSTRACT

PURPOSE: To evaluate the refractive error quality of life (RQL) improvement, patient satisfaction, and clinical results of laser refractive surgery performed by residents or fellows. SETTING: Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, USA. DESIGN: Case series. METHODS: This study reviewed the clinical results of consecutive refractive surgery cases performed between March 2010 and February 2012 by ophthalmology residents or fellows. One-year postoperative analysis of the RQL and patient satisfaction in a subgroup of patients was completed using the National Eye Institute Refractive Error Correction Quality of Life-42 instrument (NEI RQL-42), and a comparison with NEI published normative data and post-refractive data was performed. RESULTS: Data were obtained from 138 eyes that had laser in situ keratomileusis and 4 eyes that had photorefractive keratectomy. The 1-year postoperative analysis of the RQL and patient satisfaction was completed in 34 patients. After 6 months postoperatively, the mean uncorrected distance visual acuity was 0.01 logMAR (95% confidence interval [CI], -0.012 to 0.023). The mean postoperative residual refractive error spherical equivalent was -0.20 diopter (D) (95% CI, -0.26 to -0.13). No eye lost corrected distance visual acuity. Equivalent or better satisfaction in the RQL was found in all but 1 of the 13 scale scores of the NEI RQL-42 compared with previously published NEI data. CONCLUSIONS: Laser refractive surgery performed by residents and fellows showed high patient satisfaction and an improved RQL 1-year postoperatively. Clinical outcomes validated the safety and efficacy of refractive surgery performed by surgeons in training. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.


Subject(s)
Corneal Surgery, Laser/education , Education, Medical, Graduate , Hyperopia/surgery , Myopia/surgery , Ophthalmology/education , Patient Satisfaction/statistics & numerical data , Quality of Life/psychology , Adult , Fellowships and Scholarships , Female , Humans , Hyperopia/physiopathology , Hyperopia/psychology , Internship and Residency , Male , Myopia/physiopathology , Myopia/psychology , Refraction, Ocular/physiology , Retrospective Studies , Sickness Impact Profile , Surveys and Questionnaires , Treatment Outcome , Visual Acuity/physiology
12.
J Refract Surg ; 28(8): 589-91, 2012 Aug.
Article in English | MEDLINE | ID: mdl-22869236

ABSTRACT

PURPOSE: To present a case of unilateral hypopyon uveitis that began 15 days after uneventful bilateral LASIK in a 24-year-old man with an undisclosed history of ulcerative colitis. METHODS: Case report. RESULTS: The hypopyon uveitis completely resolved after treatment with aggressive topical and oral steroid agents in combination with topical antibiotic coverage. CONCLUSIONS: Although rare, visually significant hypopyon uveitis may arise after LASIK in the setting of ulcerative colitis and positive human leukocyte antigen (HLA) B27. Early recognition and treatment can result in an excellent outcome. The exact relationship between hypopyon uveitis and LASIK is impossible to ascertain.


Subject(s)
Colitis, Ulcerative/complications , Granuloma/etiology , Keratomileusis, Laser In Situ , Lasers, Excimer/therapeutic use , Postoperative Complications , Uveitis, Anterior/etiology , Administration, Oral , Administration, Topical , Astigmatism/surgery , Colitis, Ulcerative/drug therapy , Fluprednisolone/analogs & derivatives , Fluprednisolone/therapeutic use , Glucocorticoids/therapeutic use , Granuloma/diagnosis , Granuloma/drug therapy , Humans , Male , Myopia/surgery , Prednisone/therapeutic use , Tomography, Optical Coherence , Uveitis, Anterior/diagnosis , Uveitis, Anterior/drug therapy , Young Adult
14.
Ophthalmic Plast Reconstr Surg ; 26(3): 208-10, 2010.
Article in English | MEDLINE | ID: mdl-20489549

ABSTRACT

A 76-year-old man presented atypically with a 4-week history of a rapidly enlarging ulcerated nodular lesion of the left upper eyelid that was found to be sebaceous cell carcinoma. Further investigation showed no metastatic disease, and Mohs surgery was performed to resect the tumor. Histopathologic analysis showed features diagnostic of sebaceous cell carcinoma. However, most of the mass consisted of xanthomatous granulomatous inflammatory reaction vastly out of proportion with the tumor burden. The patient was spared from orbital exenteration, and no evidence of recurrence was present 6 months after resection.


Subject(s)
Adenocarcinoma, Sebaceous/pathology , Eyelid Neoplasms/pathology , Granuloma/pathology , Sebaceous Gland Neoplasms/pathology , Xanthomatosis/pathology , Adenocarcinoma, Sebaceous/diagnostic imaging , Adenocarcinoma, Sebaceous/surgery , Aged , Eyelid Neoplasms/diagnostic imaging , Eyelid Neoplasms/surgery , Granuloma/diagnostic imaging , Granuloma/surgery , Humans , Male , Mohs Surgery , Positron-Emission Tomography , Sebaceous Gland Neoplasms/diagnostic imaging , Sebaceous Gland Neoplasms/surgery , Tomography, X-Ray Computed , Xanthomatosis/diagnostic imaging , Xanthomatosis/surgery
15.
Arch Ophthalmol ; 127(4): 407-13, 2009 Apr.
Article in English | MEDLINE | ID: mdl-19365016

ABSTRACT

OBJECTIVE: To evaluate CD4(+)Foxp3(+) (forkhead box P3) T-regulatory cell populations in patients with uveitis and to determine if T-regulatory cell populations are associated with disease features. METHODS: Patients with uveitis were evaluated for CD4(+)Foxp3(+) T-regulatory cells by flow cytometry. Systemic and ocular diagnoses, disease activity, and the presence of cystoid macular edema were reviewed. Percentages of CD4(+)Foxp3(+) lymphocytes were compared for patients with inactive vs active disease, systemic vs ocular diagnoses, and the presence or absence of cystoid macular edema. Real-time polymerase chain reaction testing was performed on 2 patients with extremely low CD4(+)Foxp3(+) cell populations to assess Foxp3 mRNA. RESULTS: A total of 20 patients with intermediate uveitis, posterior uveitis, and panuveitis were evaluated. The mean age was 40.6 years and the mean visual acuity was 20/57. Percentages of CD4(+)Foxp3(+) cells were lower in patients with active compared with inactive uveitis (P< .05). No differences in T-regulatory cells were observed between the other subgroups. Two patients with recalcitrant uveitis who demonstrated less than 1% CD4(+)Foxp3(+) lymphocytes showed extremely low or absent Foxp3 mRNA. CONCLUSION: T-regulatory cells are reduced in patients with active compared with inactive disease. Severe depletion of CD4(+)Foxp3(+) T cells and Foxp3 mRNA in 2 patients with severe uveitis suggests that loss of the T-regulatory cells of uveitis may be a salient feature in certain patients.


Subject(s)
CD4 Antigens/immunology , Forkhead Transcription Factors/immunology , T-Lymphocytes, Regulatory/immunology , Uveitis/immunology , Adolescent , Adult , Female , Flow Cytometry , Forkhead Transcription Factors/genetics , Humans , Immunophenotyping , Immunosuppressive Agents/therapeutic use , Male , Middle Aged , RNA, Messenger/metabolism , Reverse Transcriptase Polymerase Chain Reaction , Uveitis/drug therapy , Uveitis/genetics , Young Adult
16.
J Biol Chem ; 283(13): 8202-10, 2008 Mar 28.
Article in English | MEDLINE | ID: mdl-18230609

ABSTRACT

Glucocorticoid-induced tumor necrosis factor receptor (GITR), found constitutively expressed on human primary natural killer (NK) cells at low levels was up-regulated upon stimulation by either Toll-like receptor ligand or NK cell growth factor, interleukin (IL)-15. cDNA microarray analysis showed that engagement of GITR primarily suppressed the activation of NF-KB pathway of NK cells and up-regulated anti-inflammatory genes heme oxygenase-1 and IL-10. Further analysis revealed that GITR activation suppressed NK cell proliferation in response to IL-15. GITR activation also suppressed proinflammatory cytokine secretion and increased NK cell apoptosis. GITR activation resulted in blocked phosphorylation of Stat5 and Akt, which may have contributed to the observed antiproliferative effect of GITR on NK cells. Increased apoptosis was independent of the Fas-FasL pathway, but Bcl-XL and phospho-Bad protein expressions were diminished, suggesting involvement of the mitochondrial apoptosis pathway. The results suggest that although GITR is an activation marker for NK cells similar to that for T cells, GITR serves as a negative regulator for NK cell activation. Our studies demonstrate a novel physiological role of GITR on NK cells.


Subject(s)
Apoptosis/drug effects , Glucocorticoids/pharmacology , Killer Cells, Natural/cytology , Killer Cells, Natural/metabolism , Lymphocyte Activation/drug effects , Receptors, Nerve Growth Factor/immunology , Receptors, Nerve Growth Factor/metabolism , Receptors, Tumor Necrosis Factor/immunology , Receptors, Tumor Necrosis Factor/metabolism , Cell Proliferation/drug effects , Cytokines/biosynthesis , Cytokines/immunology , Down-Regulation/drug effects , Fas Ligand Protein/metabolism , Gene Expression Profiling , Glucocorticoid-Induced TNFR-Related Protein , Humans , Killer Cells, Natural/immunology , Ligands , Phosphorylation , Proto-Oncogene Proteins c-akt/metabolism , STAT5 Transcription Factor/metabolism , Signal Transduction/drug effects , Toll-Like Receptors/metabolism , fas Receptor/metabolism
17.
Cancer Res ; 66(21): 10586-93, 2006 Nov 01.
Article in English | MEDLINE | ID: mdl-17079483

ABSTRACT

Human primary intraocular lymphoma (PIOL) is predominantly a B cell-originated malignant disease with no appropriate animal models and effective therapies available. This study aimed to establish a mouse model to closely mimic human B-cell PIOL and to test the therapeutic potential of a recently developed immunotoxin targeting human B-cell lymphomas. Human B-cell lymphoma cells were intravitreally injected into severe combined immunodeficient mice. The resemblance of this tumor model to human PIOL was examined by fundoscopy, histopathology, immunohistochemistry, and evaluated for molecular markers. The therapeutic effectiveness of immunotoxin HA22 was tested by injecting the drug intravitreally. Results showed that the murine model resembles human PIOL closely. Pathologic examination revealed that the tumor cells initially colonized on the retinal surface, followed by infiltrating through the retinal layers, expanding preferentially in the subretinal space, and eventually penetrating through the retinal pigment epithelium into the choroid. Several putative molecular markers for human PIOL were expressed in vivo in this model. Tumor metastasis into the central nervous system was also observed. A single intravitreal injection of immunotoxin HA22 after the establishment of the PIOL resulted in complete regression of the tumor. This is the first report of a murine model that closely mimics human B-cell PIOL. This model may be a valuable tool in understanding the molecular pathogenesis of human PIOL and for the evaluation of new therapeutic approaches. The results of B cell-specific immunotoxin therapy may have clinical implications in treating human PIOL.


Subject(s)
B-Lymphocytes/drug effects , Eye Neoplasms/therapy , Immunotoxins/therapeutic use , Lymphoma, B-Cell/therapy , Animals , Cell Line, Tumor , Disease Models, Animal , Eye Neoplasms/immunology , Eye Neoplasms/pathology , Humans , Lymphoma, B-Cell/immunology , Lymphoma, B-Cell/pathology , Mice , Mice, SCID , Neoplasm Invasiveness , Receptors, CXCR4/analysis , Receptors, CXCR5 , Receptors, Chemokine/analysis , Sialic Acid Binding Ig-like Lectin 2/analysis
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