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Rabinowitz Yaron

Yelena Bykhovskaya, Majid Fardaei, Mariam Lotfy Khaled, Mahmood Nejabat, Ramin Salouti, Hassan Dastsooz, Yutao Liu, Soroor Inaloo, Yaron S Rabinowitz
Purpose: To test candidate genes TSC1 and TSC2 in a family affected by tuberous sclerosis complex (TSC) where proband was also diagnosed with bilateral keratoconus (KC) and to test the hypothesis that defects in the same gene may lead to a nonsyndromic KC. Methods: Next-generation sequencing of TSC1 and TSC2 genes was performed in a proband affected by TSC and KC. Identified mutation was confirmed by Sanger DNA sequencing. Whole exome sequencing (WES) was performed in patients with nonsyndromic KC...
December 1, 2017: Investigative Ophthalmology & Visual Science
Ronald N Gaster, J Ben Margines, David N Gaster, Xiaohui Li, Yaron S Rabinowitz
PURPOSE: To compare the visual, refractive, keratometric, topographic, and pachymetric outcomes of corneal collagen cross-linking (CXL) for progressive keratoconus following epithelial removal by transepithelial phototherapeutic keratectomy (PTK) or manual debridement. METHODS: In this analysis, 339 eyes (78% male, 22% female) that had undergone CXL following manual epithelial debridement (n = 180) or ablation via PTK (n = 159) were evaluated preoperatively and at 6, 12, and 24 months postoperatively for uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), maximum corneal keratometry, pachymetry, and spherical equivalent...
October 1, 2016: Journal of Refractive Surgery
Yelena Bykhovskaya, Benjamin Margines, Yaron S Rabinowitz
Keratoconus (KC) is a non-inflammatory thinning and protrusion of the cornea in which the cornea assumes a conical shape. Complex etiology of this condition at present remains an enigma. Although environmental factors have been involved in KC pathogenesis, strong underlining genetic susceptibility has been proven. The lack of consistent findings among early genetic studies suggested a heterogeneity and complex nature of the genetic contribution to the development of KC. Recently, genome-wide linkage studies (GWLS) and genome-wide association studies (GWAS) were undertaken...
2016: Eye and Vision (London, England)
Chen Cai, Yi-Fan Xu, Zhen-Jie Wu, Qin Dong, Min-Yu Li, Jason C Olson, Yaron M Rabinowitz, Lin-Hui Wang, Yinghao Sun
PURPOSE: Renal cell carcinoma (RCC) is the most common cancer of kidney. Evidences have shown that RCC is sensitive to various immunotherapies. Tim-3 plays a role in suppressing Th1-mediated immune responses. However, no study has yet examined the effect of Tim-3 on tumor infiltrating lymphocytes (TILs) in RCC. METHODS: We investigated the expression and function of Tim-3 on TIL CD4+ T cells and TIL CD8+ T cells from 30 RCC patients. RESULTS: Levels of Tim-3 were significantly increased on both TIL CD4+ T cells and TIL CD8+ T cells and were associated with higher stages of the cancer...
April 2016: World Journal of Urology
Guanggang Li, Hasi Wulan, Zongchang Song, Paul A Paik, Ming L Tsao, Gary M Goodman, Paul T MacEachern, Robert S Downey, Anna J Jankowska, Yaron M Rabinowitz, Thomas B Learch, David Z Song, Ji J Yuan, Shihang Zheng, Zhendong Zheng
Helicobacter pylori infection occurs in more than half of the world's population and is the main cause for gastric cancer. A series of lifestyle and nutritional factors, such as tobacco smoking and obesity, have been found to elevate the risk for cancer development. In this study, we sought to determine the immunological aspects during H. pylori infection and gastric cancer development. We found that B cells from H. pylori-infected patients presented altered composition and function compared to uninfected patients...
2015: PloS One
Yelena Bykhovskaya, Michael F Seldin, Yutao Liu, Michael Ransom, Xiaohui Li, Yaron S Rabinowitz
No abstract text is available yet for this article.
March 2015: Ophthalmic Genetics
Dhruv Sareen, Mehrnoosh Saghizadeh, Loren Ornelas, Michael A Winkler, Kavita Narwani, Anais Sahabian, Vincent A Funari, Jie Tang, Lindsay Spurka, Vasu Punj, Ezra Maguen, Yaron S Rabinowitz, Clive N Svendsen, Alexander V Ljubimov
Limbal epithelial stem cell (LESC) deficiency (LSCD) leads to corneal abnormalities resulting in compromised vision and blindness. LSCD can be potentially treated by transplantation of appropriate cells, which should be easily expandable and bankable. Induced pluripotent stem cells (iPSCs) are a promising source of transplantable LESCs. The purpose of this study was to generate human iPSCs and direct them to limbal differentiation by maintaining them on natural substrata mimicking the native LESC niche, including feederless denuded human amniotic membrane (HAM) and de-epithelialized corneas...
September 2014: Stem Cells Translational Medicine
Yaron S Rabinowitz, Xiaohui Li, Ana Laura Caiado Canedo, Renato Ambrósio, Yelena Bykhovskaya
PURPOSE: To develop parameters using a combination of optical coherence tomography (OCT) and videokeratography to detect early keratoconus. METHODS: Videokeratography, wavefront analysis, and measured OCT indices were performed on 180 normal eyes, 46 eyes with moderate keratoconus, 54 eyes with early keratoconus, 7 eyes with forme fruste keratoconus, and 16 eyes with keratoconus "suspect" to determine the most sensitive parameters for separating these groups. RESULTS: A combination of videokeratography and OCT indices (inferior-superior [I-S] value and minimum pachymetry) was statistically the most significant in separating the keratoconus groups from normal eyes (P < ...
February 2014: Journal of Refractive Surgery
Yelena Bykhovskaya, Xiaohui Li, Kent D Taylor, Talin Haritunians, Jerome I Rotter, Yaron S Rabinowitz
No abstract text is available yet for this article.
2016: Ophthalmic Genetics
Charles A Morgan, Yaron Rabinowitz, Robert Leidy, Vladimir Coric
The purpose of this project was to assess the detecting deception efficacy of three well-validated "detecting deception" methods - i.e., forced choice testing (FCT), modified cognitive interviewing (MCI) and autobiographical implicit association testing (aIAT) - when applied to the issue of bio-threat. The detecting deception accuracies of FCT and MCI were 81% and 75%, respectively. Although the aIAT mean response times in block 5 differed significantly between deceptive and truthful persons, the classification accuracy was low...
May 2014: Behavioral Sciences & the Law
Mehrnoosh Saghizadeh, Michael A Winkler, Andrei A Kramerov, David M Hemmati, Chantelle A Ghiam, Slobodan D Dimitrijevich, Dhruv Sareen, Loren Ornelas, Homayon Ghiasi, William J Brunken, Ezra Maguen, Yaron S Rabinowitz, Clive N Svendsen, Katerina Jirsova, Alexander V Ljubimov
Human amniotic membrane is a standard substratum used to culture limbal epithelial stem cells for transplantation to patients with limbal stem cell deficiency. Various methods were developed to decellularize amniotic membrane, because denuded membrane is poorly immunogenic and better supports repopulation by dissociated limbal epithelial cells. Amniotic membrane denuding usually involves treatment with EDTA and/or proteolytic enzymes; in many cases additional mechanical scraping is required. Although ensuring limbal cell proliferation, these methods are not standardized, require relatively long treatment times and can result in membrane damage...
2013: PloS One
Yelena Bykhovskaya, Ana L Caiado Canedo, Kenneth W Wright, Yaron S Rabinowitz
A c.57 C > T mutation in the seed region of MIR184 located at the 15q25.1 chromosomal region has been independently associated with autosomal dominant keratoconus with early-onset anterior polar cataract in the Northern Irish family and with autosomal dominant EDICT (Endothelial Dystrophy, Iris hypoplasia, Congenital cataracts, and stromal Thinning) syndrome. In this study we report a five-generation family originating in Galicia, Spain with early onset cataracts and variable corneal abnormalities which include non-ectatic corneal thinning and severe early-onset keratoconus...
2015: Ophthalmic Genetics
Xiaohui Li, Yelena Bykhovskaya, Ana Laura Caiado Canedo, Talin Haritunians, David Siscovick, Anthony J Aldave, Loretta Szczotka-Flynn, Sudha K Iyengar, Jerome I Rotter, Kent D Taylor, Yaron S Rabinowitz
PURPOSE: Single nucleotide polymorphisms (SNPs) located near or within the COL5A1 gene, at 9q34.2-q34.3 chromosomal region have been reported in association with central corneal thickness (CCT). Using family linkage analysis, we identified a keratoconus susceptibility locus at 9q34. These findings led us to perform an association study between COL5A1 variation and keratoconus susceptibility. METHODS: A Caucasian case-control cohort of 222 keratoconus patients and 3324 controls was selected as the discovery panel...
April 12, 2013: Investigative Ophthalmology & Visual Science
Xiaohui Li, Yelena Bykhovskaya, Yongming G Tang, Yoana Picornell, Talin Haritunians, Anthony J Aldave, Loretta Szczotka-Flynn, Sudha K Iyengar, Jerome I Rotter, Kent D Taylor, Yaron S Rabinowitz
PURPOSE: Keratoconus (KC) is a genetically heterogeneous corneal dystrophy. Previously, we performed 2 genome-wide linkage scans in a 4-generation autosomal dominant pedigree and repeatedly mapped a KC locus to a genomic region located on chromosome 5q overlapping the gene encoding the inhibitor of calpains, calpastatin (CAST). To test whether variants in CAST gene are involved in genetic susceptibility to KC, we performed genetic testing of polymorphic markers in CAST gene in family and case-control panels of patients with KC...
May 2013: Cornea
Yi Lu, Veronique Vitart, Kathryn P Burdon, Chiea Chuen Khor, Yelena Bykhovskaya, Alireza Mirshahi, Alex W Hewitt, Demelza Koehn, Pirro G Hysi, Wishal D Ramdas, Tanja Zeller, Eranga N Vithana, Belinda K Cornes, Wan-Ting Tay, E Shyong Tai, Ching-Yu Cheng, Jianjun Liu, Jia-Nee Foo, Seang Mei Saw, Gudmar Thorleifsson, Kari Stefansson, David P Dimasi, Richard A Mills, Jenny Mountain, Wei Ang, René Hoehn, Virginie J M Verhoeven, Franz Grus, Roger Wolfs, Raphaële Castagne, Karl J Lackner, Henriët Springelkamp, Jian Yang, Fridbert Jonasson, Dexter Y L Leung, Li J Chen, Clement C Y Tham, Igor Rudan, Zoran Vatavuk, Caroline Hayward, Jane Gibson, Angela J Cree, Alex MacLeod, Sarah Ennis, Ozren Polasek, Harry Campbell, James F Wilson, Ananth C Viswanathan, Brian Fleck, Xiaohui Li, David Siscovick, Kent D Taylor, Jerome I Rotter, Seyhan Yazar, Megan Ulmer, Jun Li, Brian L Yaspan, Ayse B Ozel, Julia E Richards, Sayoko E Moroi, Jonathan L Haines, Jae H Kang, Louis R Pasquale, R Rand Allingham, Allison Ashley-Koch, Paul Mitchell, Jie Jin Wang, Alan F Wright, Craig Pennell, Timothy D Spector, Terri L Young, Caroline C W Klaver, Nicholas G Martin, Grant W Montgomery, Michael G Anderson, Tin Aung, Colin E Willoughby, Janey L Wiggs, Chi P Pang, Unnur Thorsteinsdottir, Andrew J Lotery, Christopher J Hammond, Cornelia M van Duijn, Michael A Hauser, Yaron S Rabinowitz, Norbert Pfeiffer, David A Mackey, Jamie E Craig, Stuart Macgregor, Tien Y Wong
Central corneal thickness (CCT) is associated with eye conditions including keratoconus and glaucoma. We performed a meta-analysis on >20,000 individuals in European and Asian populations that identified 16 new loci associated with CCT at genome-wide significance (P < 5 × 10(-8)). We further showed that 2 CCT-associated loci, FOXO1 and FNDC3B, conferred relatively large risks for keratoconus in 2 cohorts with 874 cases and 6,085 controls (rs2721051 near FOXO1 had odds ratio (OR) = 1.62, 95% confidence interval (CI) = 1...
February 2013: Nature Genetics
Ronald N Gaster, Ana L Caiado Canedo, Yaron S Rabinowitz
No abstract text is available yet for this article.
2013: International Ophthalmology Clinics
Yaron S Rabinowitz
No abstract text is available yet for this article.
2013: International Ophthalmology Clinics
Ronald N Gaster, Oanna Dumitrascu, Yaron S Rabinowitz
BACKGROUND/AIMS: This paper will compare the visual outcomes of two different penetrating keratoplasty (PKP) techniques in patients with keratoconus. It is a retrospective comparative surgical case series of 116 keratoconus patients (137 eyes) who had PKP at the Cornea Eye Institute, Beverly Hills, California, USA. METHODS: 56 keratoconus patients (66 eyes) underwent femtosecond laser-enabled keratoplasty (FLEK) with a zig-zag incision configuration. Their visual parameters were compared with those of 60 patients (71 eyes) who had traditional blade mechanical trephination PKP...
September 2012: British Journal of Ophthalmology
Yaron G Rabinowitz, Dolores Gallagher-Thompson
Despite an increasing awareness of the problem, clinical research continues to include lesser numbers of ethnic minority participants disproportionate to their population percentages. To rectify this problem, this article attempts to identify key barriers to minority recruitment and retention as well as specific strategies and methods successful in the past. We propose specific recommendations to address these barriers, and formulate a 3-prong approach to increasing minority recruitment and retention, with emphasis on elderly participants...
July 2010: Alzheimer Disease and Associated Disorders
Yelena Bykhovskaya, Xiaohui Li, Irina Epifantseva, Talin Haritunians, David Siscovick, Anthony Aldave, Loretta Szczotka-Flynn, Sudha K Iyengar, Kent D Taylor, Jerome I Rotter, Yaron S Rabinowitz
PURPOSE: Keratoconus is a bilateral noninflammatory progressive corneal disorder with complex genetic inheritance and a common cause for cornea transplantation in young adults. A genomewide linkage scan in keratoconus families identified a locus at 5q23.2, overlapping the gene coding for the lysyl oxidase (LOX). LOX encodes an enzyme responsible for collagen cross-linking in a variety of tissues including the cornea. Corneal collagen cross-linking with long-wave ultraviolet light and riboflavin is a promising new treatment for keratoconus...
June 28, 2012: Investigative Ophthalmology & Visual Science
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