keyword
MENU ▼
Read by QxMD icon Read
search

reza dana

keyword
https://www.readbyqxmd.com/read/29328076/analysis-of-3d-plasmonic-circuits-by-using-surface-impedance-models
#1
Hoda Ameri, Reza Faraji-Dana
Novel and accurate global and local surface impedance models have been developed to analyze plasmonic circuits fast and efficiently. In the analysis procedure, first the metal strip in the plasmonic circuit is modeled by a surface impedance. Then, the calculated surface impedance is employed in the surface integral equation to analyze the plasmonic circuit such as a through line and line coupler. Accuracy of the numerical results is shown in comparison with a commercial simulation software. The number of unknowns as well as the computational time are also compared with the volume integral equation, and it is obvious that, using our proposed surface impedance models, the analysis will be much faster and more efficient...
January 1, 2018: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29307015/therapeutic-approaches-for-induction-of-tolerance-and-immune-quiescence-in-corneal-allotransplantation
#2
REVIEW
Maryam Tahvildari, Afsaneh Amouzegar, William Foulsham, Reza Dana
The cornea is the most commonly transplanted tissue in the body. Corneal grafts in low-risk recipients enjoy high success rates, yet over 50% of high-risk grafts (with inflamed and vascularized host beds) are rejected. As our understanding of the cellular and molecular pathways that mediate rejection has deepened, a number of novel therapeutic strategies have been unveiled. This manuscript reviews therapeutic approaches to promote corneal transplant survival through targeting (1) corneal lymphangiogenesis and hemangiogenesis, (2) antigen presenting cells, (3) effector and regulatory T cells, and (4) mesenchymal stem cells...
January 6, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29303889/factors-influencing-the-diagnostic-accuracy-of-laser-scanning-in-vivo-confocal-microscopy-for-acanthamoeba-keratitis
#3
Ahmad Kheirkhah, Vannarut Satitpitakul, Zeba A Syed, Rodrigo Müller, Sunali Goyal, Elmer Y Tu, Reza Dana
PURPOSE: To determine the factors that influence the sensitivity and specificity of laser-scanning in vivo confocal microscopy (IVCM) for diagnosing Acanthamoeba keratitis (AK). METHODS: This retrospective, controlled study included 28 eyes of 27 patients with AK and 34 eyes of 34 patients with bacterial keratitis (as the control group). All patients had undergone corneal imaging with a laser-scanning IVCM (Heidelberg Retina Tomograph 3 with the Rostock Cornea Module)...
January 4, 2018: Cornea
https://www.readbyqxmd.com/read/29248310/when-clarity-is-crucial-regulating-ocular-surface-immunity
#4
REVIEW
William Foulsham, Giulia Coco, Afsaneh Amouzegar, Sunil K Chauhan, Reza Dana
The ocular surface is a unique mucosal immune compartment in which anatomical, physiological, and immunological features act in concert to foster a particularly tolerant microenvironment. These mechanisms are vital to the functional competence of the eye, a fact underscored by the devastating toll of excessive inflammation at the cornea - blindness. Recent data have elucidated the contributions of specific anatomical components, immune cells, and soluble immunoregulatory factors in promoting homeostasis at the ocular surface...
December 13, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/29135604/chemical-burns-of-the-eye-the-role-of-retinal-injury-and-new-therapeutic-possibilities
#5
Claes H Dohlman, Fabiano Cade, Caio V Regatieri, Chengxin Zhou, Fengyang Lei, Alja Crnej, Mona Harissi-Dagher, Marie-Claude Robert, George N Papaliodis, Dongfeng Chen, James V Aquavella, Esen K Akpek, Anthony J Aldave, Kimberly C Sippel, Donald J DʼAmico, Jan G Dohlman, Per Fagerholm, Liqiang Wang, Lucy Q Shen, Miguel González-Andrades, James Chodosh, Kenneth R Kenyon, C Stephen Foster, Roberto Pineda, Samir Melki, Kathryn A Colby, Joseph B Ciolino, Demetrios G Vavvas, Shigeru Kinoshita, Reza Dana, Eleftherios I Paschalis
PURPOSE: To propose a new treatment paradigm for chemical burns to the eye - in the acute and chronic phases. METHODS: Recent laboratory and clinical data on the biology and treatment of chemical burns are analyzed. RESULTS: Corneal blindness from chemical burns can now be successfully treated with a keratoprosthesis, on immediate and intermediate bases. Long term outcomes, however, are hampered by early retinal damage causing glaucoma. New data suggest that rapid diffusion of inflammatory cytokines posteriorly (TNF-α, etc) can severely damage the ganglion cells...
November 9, 2017: Cornea
https://www.readbyqxmd.com/read/29128574/conjunctivochalasis-a-systematic-review
#6
REVIEW
Anna Marmalidou, Ahmad Kheirkhah, Reza Dana
Conjunctivochalasis (CCH) is a conjunctival condition characterized by loose, redundant conjunctival folds, most typically in the inferior bulbar conjunctiva of both eyes. Although CCH is a common cause of ocular irritation and discomfort, especially in the elderly, it is often overlooked in clinical practice. Conjunctivochalasis may be associated with various ocular and non-ocular conditions; however, the most important risk factor is aging. Although often asymptomatic, CCH may cause symptoms related to tear film instability and/or delayed tear clearance...
November 8, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29075761/corneal-mesenchymal-stromal-cells-are-directly-antiangiogenic-via-pedf-and-sflt-1
#7
Medi Eslani, Ilham Putra, Xiang Shen, Judy Hamouie, Neda Afsharkhamseh, Soroush Besharat, Mark I Rosenblatt, Reza Dana, Peiman Hematti, Ali R Djalilian
Purpose: To evaluate the angiogenic properties of corneal derived mesenchymal stromal cells (Co-MSC). Methods: Co-MSCs were extracted from human cadaver, and wild-type (C57BL/6J) and SERPINF1-/- mice corneas. The MSC secretome was collected in a serum-free medium. Human umbilical vein endothelial cell (HUVEC) tube formation and fibrin gel bead assay (FIBA) sprout formation were used to assess the angiogenic properties of Co-MSC secretome. Complete corneal epithelial debridement was used to induce corneal neovascularization in wild-type mice...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29023237/corneal-tissue-from-dry-eye-donors-leads-to-enhanced-graft-rejection
#8
Takenori Inomata, Jing Hua, Takeshi Nakao, Tina Shiang, Homer Chiang, Afsaneh Amouzegar, Reza Dana
PURPOSE: To assess the effect of dry eye disease (DED) in graft donors on dendritic cell (DC) maturation, host T-cell sensitization, and corneal allograft rejection. METHODS: Corneas of control (healthy donor) and DED mice (C57BL/6) were transplanted onto fully allogeneic naive BALB/c recipients (n = 10 mice/group). Long-term allograft survival was evaluated for 8 weeks. Corneas and draining lymph nodes (dLNs) were harvested at posttransplantation day 14 (n = 5 mice/group)...
October 10, 2017: Cornea
https://www.readbyqxmd.com/read/28985226/scaling-and-maintenance-of-corneal-thickness-during-aging
#9
Takenori Inomata, Alireza Mashaghi, Jiaxu Hong, Takeshi Nakao, Reza Dana
Corneal thickness is tightly regulated by its boundary endothelial and epithelial layers. The regulated set-point of corneal thickness likely shows inter-individual variations, changes by age, and response to stress. Using anterior segment-optical coherence tomography, we measure murine central corneal thickness and report on body size scaling of murine central corneal thickness during aging. For aged-matched mice, we find that corneal thickness depends on sex and strain. To shed mechanistic insights into these anatomical changes, we measure epithelial layer integrity and endothelial cell density during the life span of the mice using corneal fluorescein staining and in vivo confocal microscopy, respectively and compare their trends with that of the corneal thickness...
2017: PloS One
https://www.readbyqxmd.com/read/28964310/international-pediatric-otolaryngology-group-consensus-guidelines-on-the-diagnosis-and-management-of-type-i-laryngeal-clefts
#10
Jeffrey C Yeung, Karthik Balakrishnan, Alan T L Cheng, Sam J Daniel, Eréa-Noël Garabedian, Catherine K Hart, Andrew F Inglis, Nicolas Leboulanger, Bryan J Liming, Eric Moreddu, Richard Nicollas, John D Russell, Michael J Rutter, Douglas R Sidell, Jorge Spratley, Marlene Soma, Briac Thierry, Dana M Thompson, Jean-Michel Triglia, Karen Watters, Michelle Wyatt, George H Zalzal, Karen B Zur, Reza Rahbar
INTRODUCTION: The diagnosis and management of type I laryngeal clefts can be controversial and varies across centers and surgeons. Using existing peer-reviewed literature to develop an expert-based consensus will help guide physicians in the treatment of these patients as well as develop research hypotheses to further study this condition. OBJECTIVE: To provide recommendations for the diagnosis and management of type I laryngeal clefts. METHODS: Determination of current expert- and literature-based recommendations, via a survey of the International Pediatric Otolaryngology Group, using a modified Delphi method...
October 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28885245/novel-treatments-for-corneal-angiogenesis
#11
Zeba A Syed, Reza Dana
No abstract text is available yet for this article.
2017: International Ophthalmology Clinics
https://www.readbyqxmd.com/read/28775329/transient-ingrowth-of-lymphatic-vessels-into-the-physiologically-avascular-cornea-regulates-corneal-edema-and-transparency
#12
Deniz Hos, Anne Bukowiecki, Jens Horstmann, Felix Bock, Franziska Bucher, Ludwig M Heindl, Sebastian Siebelmann, Philipp Steven, Reza Dana, Sabine A Eming, Claus Cursiefen
Lymphangiogenesis is essential for fluid homeostasis in vascularized tissues. In the normally avascular cornea, however, pathological lymphangiogenesis mediates diseases like corneal transplant rejection, dry eye disease, and allergy. So far, a physiological role for lymphangiogenesis in a primarily avascular site such as the cornea has not been described. Using a mouse model of perforating corneal injury that causes acute and severe fluid accumulation in the cornea, we show that lymphatics transiently and selectively invade the cornea and regulate the resolution of corneal edema...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28736686/evaluating-changes-in-ocular-redness-using-a-novel-automated-method
#13
Francisco Amparo, Jia Yin, Antonio Di Zazzo, Tulio Abud, Ula V Jurkunas, Pedram Hamrah, Reza Dana
PURPOSE: To evaluate interobserver concordance in measured ocular redness among a group of raters using an objective computer-assisted method (ocular redness index [ORI]) and a group of clinicians using an ordinal comparative scale. METHODS: We conducted a prospective study to evaluate ocular redness in clinical photographs of 12 patients undergoing pterygium surgery. Photographs were acquired preoperatively, and at 1 week and 1 month postoperatively. One group of clinicians graded conjunctival redness in the photographs using an image-based comparative scale...
July 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28736343/tfos-dews-ii-management-and-therapy-report
#14
REVIEW
Lyndon Jones, Laura E Downie, Donald Korb, Jose M Benitez-Del-Castillo, Reza Dana, Sophie X Deng, Pham N Dong, Gerd Geerling, Richard Yudi Hida, Yang Liu, Kyoung Yul Seo, Joseph Tauber, Tais H Wakamatsu, Jianjiang Xu, James S Wolffsohn, Jennifer P Craig
The members of the Management and Therapy Subcommittee undertook an evidence-based review of current dry eye therapies and management options. Management options reviewed in detail included treatments for tear insufficiency and lid abnormalities, as well as anti-inflammatory medications, surgical approaches, dietary modifications, environmental considerations and complementary therapies. Following this extensive review it became clear that many of the treatments available for the management of dry eye disease lack the necessary Level 1 evidence to support their recommendation, often due to a lack of appropriate masking, randomization or controls and in some cases due to issues with selection bias or inadequate sample size...
July 2017: Ocular Surface
https://www.readbyqxmd.com/read/28693042/evaluating-corneal-fluorescein-staining-using-a-novel-automated-method
#15
Francisco Amparo, Haobing Wang, Jia Yin, Anna Marmalidou, Reza Dana
Purpose: To evaluate interobserver concordance in measured corneal fluorescein staining (CFS) using the National Eye Institute/Industry (NEI) grading scale and the Corneal Fluorescein Staining Index (CFSi), a computer-assisted, objective, centesimal scoring system. Methods: We conducted a study to evaluate CFS in clinical photographs of patients with corneal epitheliopathy. One group of clinicians graded CFS in the images using the NEI while a second group applied the CFSi...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28637904/ifn-%C3%AE-expressing-th17-cells-are-required-for-development-of-severe-ocular-surface-autoimmunity
#16
Yihe Chen, Sunil K Chauhan, Chunyi Shao, Masahiro Omoto, Takenori Inomata, Reza Dana
Th17 cells are critical effectors mediating the ocular surface autoimmunity in dry eye disease (DED). Increased IFN-γ has also been implicated in DED; however, it remains unclear to what extent Th1 cells contribute to DED pathogenesis. In this study, we investigated the cellular source of IFN-γ and assessed its contribution to corneal epitheliopathy in DED mice. We discovered a significant IL-17A(+)IFN-γ(+) (Th17/1) population and determined that these cells are derived from Th17 precursors. Adoptive transfer of Th17/1, but not Th1, cells confers the disease to naive recipients as effectively as do Th17 cells alone...
August 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28576753/review-the-function-of-regulatory-t-cells-at-the-ocular-surface
#17
REVIEW
William Foulsham, Anna Marmalidou, Afsaneh Amouzegar, Giulia Coco, Yihe Chen, Reza Dana
Regulatory T cells (Tregs) are critical modulators of immune homeostasis. Tregs maintain peripheral tolerance to self-antigens, thereby preventing autoimmune disease. Furthermore, Tregs suppress excessive immune responses deleterious to the host. Recent research has deepened our understanding of how Tregs function at the ocular surface. This manuscript describes the classification, the immunosuppressive mechanisms, and the phenotypic plasticity of Tregs. We review the contribution of Tregs to ocular surface autoimmune disease, as well as the function of Tregs in allergy and infection at the ocular surface...
October 2017: Ocular Surface
https://www.readbyqxmd.com/read/28528121/determinants-of-ocular-pain-severity-in-patients-with-dry-eye-disease
#18
Vannarut Satitpitakul, Ahmad Kheirkhah, Alja Crnej, Pedram Hamrah, Reza Dana
PURPOSE: To quantify the severity of ocular pain in patients with dry eye disease (DED) and evaluate factors associated with pain severity. DESIGN: Cross-sectional study. METHODS: Eighty-four patients with DED were asked to score their severity level of ocular pain using a 10-point scale, with 10 indicating the most severe pain. All patients also had a comprehensive ophthalmic assessment including a detailed history, Ocular Surface Disease Index (OSDI) questionnaire, and ocular surface examination...
July 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28481835/patients-perceived-treatment-effectiveness-in-dry-eye-disease
#19
Ahmad Kheirkhah, Alja Crnej, Ai Ren, Andrew Mullins, Vannarut Satitpitakul, Pedram Hamrah, Debra Schaumberg, Reza Dana
PURPOSE: Patients' perceptions of the effectiveness of a treatment, or perceived treatment effectiveness (PTE), play an important role in medicine. This study aimed to evaluate patients' PTE in dry eye disease (DED) and investigate factors contributing to these patients' perceptions. METHODS: This cross-sectional study included 66 patients with DED. At enrollment, all patients had comprehensive ophthalmic assessment. In addition, to evaluate the patient's PTE, they were asked to use a 10-point scale ranging from "strongly disagree (score 1)" to "strongly agree (score 10)" to score their views on whether their DED treatments had been effective...
August 2017: Cornea
https://www.readbyqxmd.com/read/28445703/sensitivity-and-specificity-of-laser-scanning-in%C3%A2-vivo-confocal-microscopy-for-filamentous-fungal-keratitis-role-of-observer-experience
#20
Ahmad Kheirkhah, Zeba A Syed, Vannarut Satitpitakul, Sunali Goyal, Rodrigo Müller, Elmer Y Tu, Reza Dana
PURPOSE: To determine sensitivity and specificity of laser-scanning in vivo confocal microscopy (LS-IVCM) for detection of filamentous fungi in patients with microbial keratitis and to evaluate the effect of observer's imaging experience on these parameters. DESIGN: Retrospective reliability study. METHODS: This study included 21 patients with filamentous fungal keratitis and 24 patients with bacterial keratitis (as controls). The etiology of infection was confirmed based on the response to specific therapy regardless of culture results...
July 2017: American Journal of Ophthalmology
keyword
keyword
67969
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"