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https://www.readbyqxmd.com/read/29101724/adjunctive-role-of-self-retained-cryopreserved-amniotic-membrane-in-treating-immune-related-dry-eye-disease
#1
Anny M S Cheng, Sean Tighe, Hosam Sheha, Scheffer C G Tseng
PURPOSE: To present a case of successful treatment of immune-related severe dry eye disease (DED) by self-retained cryopreserved amniotic membrane (CAM) in conjunction with conventional and systemic immunotherapy. OBSERVATIONS: A 48-year-old female with a 10-year history of rheumatoid arthritis under systemic immunomodulation developed non-resolved severe ocular dryness, pain, photophobia and blurred vision due to corneal epithelial keratopathy OD much worse than OS despite topical artificial tears, steroids, cyclosporine, autologous serum drops, punctal plugs and scleral lens for the last 3 years...
November 3, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29055903/significant-correlation-between-meibomian-gland-dysfunction-and-keratitis-in-young-patients-with-demodex-brevis-infestation
#2
Lingyi Liang, Yan Liu, Xiaohu Ding, Hongmin Ke, Chuan Chen, Scheffer C G Tseng
AIMS: To report the clinical characteristics and correlation between meibomian gland dysfunction (MGD) and keratitis in young patients with ocular demodicosis. METHODS: Observational case series of 60 patients younger than 35 years with ocular demodicosis, of which the diagnosis was based on microscopic counting of Demodex folliculorum and D. brevis of epilated lashes. Severity of keratitis and MGD was graded by photography and meibography, respectively, in a masked fashion...
October 21, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28834819/self-retained-amniotic-membrane-combined-with-antiviral-therapy-for-herpetic-epithelial-keratitis
#3
Anny M S Cheng, Scheffer C G Tseng
PURPOSE: To evaluate the therapeutic benefit of self-retained cryopreserved amniotic membrane in conjunction with oral antiviral therapy in herpetic epithelial keratitis. METHODS: Retrospective review of 4 patients with primary (1 eye) and recurrent (3 eyes) unilateral herpetic epithelial keratitis treated with cryopreserved amniotic membrane through the placement of the PROKERA Slim (PKS) (Bio-Tissue, Inc) in conjunction with oral acyclovir. Their symptoms, conjunctival inflammation, corneal staining, and visual acuity were compared before and after treatment...
November 2017: Cornea
https://www.readbyqxmd.com/read/28765543/descemet-s-membrane-supports-corneal-endothelial-cell-regeneration-in-rabbits
#4
Jingyao Chen, Zhiyuan Li, Liying Zhang, Shangkun Ou, Yanzi Wang, Xin He, Dulei Zou, Changkai Jia, Qianqian Hu, Shu Yang, Xian Li, Juan Li, Junqi Wang, Huimin Sun, Yongxiong Chen, Ying-Ting Zhu, Scheffer C G Tseng, Zuguo Liu, Wei Li
Descemet's membrane (DM) helps maintain phenotype and function of corneal endothelial cells under physiological conditions, while little is known about the function of DM in corneal endothelial wound healing process. In the current study, we performed in vivo rabbit corneal endothelial cell (CEC) injury via CEC scraping, in which DM remained intact after CECs removal, or via DM stripping, in which DM was removed together with CECs. We found rabbit corneas in the CEC scraping group healed with transparency restoration, while there was posterior fibrosis tissue formation in the corneas after DM stripping on day 14...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28295455/cryopreserved-human-umbilical-cord-versus-biocellulose-film-for-prenatal-spina-bifida-repair-in-a-physiologic-rat-model
#5
Saul Snowise, Lovepreet Mann, Yisel Morales, Kenneth J Moise, Anthony Johnson, Stephen Fletcher, Raymond J Grill, Scheffer C G Tseng, Ramesha Papanna
BACKGROUND: Prenatal spina bifida (SB) repair with a regenerative patch may improve neurological outcomes by decreasing inflammatory scarring. OBJECTIVE: This study aims to compare cryopreserved human umbilical cord (HUC) and biocellulose film (BCF) patches sutured over SB lesions for regeneration of native cells and inflammatory response. STUDY DESIGN: Sprague-Dawley rats were gavaged with retinoic acid (RA) on embryonic day 10 to induce SB...
March 13, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28288269/topical-cryopreserved-amniotic-membrane-and-umbilical-cord-eye-drops-promote-re-epithelialization-in-a-murine-corneal-abrasion-model
#6
Sean Tighe, Hamid-Reza Moein, Lorraine Chua, Anny Cheng, Pedram Hamrah, Scheffer C G Tseng
Purpose: To evaluate morselized amniotic membrane and umbilical cord (AMUC) eye drops in promoting corneal re-epithelialization. Methods: Following a 2-mm diameter central epithelial wound in one eye of 48 normal C57BL/6 mouse corneas, 10 μL of saline with (n = 24) or without (n = 24) AMUC was applied three times a day for 6 days. The corneal epithelial defect was measured using 0.1% fluorescein, while corneal epithelial regularity was measured by assessment of a reflected light off the corneal surface...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28252047/inhibition-of-proliferation-and-epithelial-mesenchymal-transition-in-retinal-pigment-epithelial-cells-by-heavy-chain-hyaluronan-pentraxin-3
#7
Hua He, Ajay E Kuriyan, Chen-Wei Su, Megha Mahabole, Yuan Zhang, Ying-Ting Zhu, Harry W Flynn, Jean-Marie Parel, Scheffer C G Tseng
Proliferative vitreoretinopathy (PVR) is mediated by proliferation and epithelial mesenchymal transition (EMT) of retinal pigment epithelium (RPE). Because heavy chain-hyaluronic acid/pentraxin 3 (HC-HA/PTX3) purified from human amniotic membrane exerts anti-inflammatory and anti-scarring actions, we hypothesized that HC-HA/PTX3 could inhibit these PVR-related processes in vitro. In this study, we first optimized an ARPE-19 cell culture model to mimic PVR by defining cell density, growth factors, and cultivation time...
March 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28165063/heavy-chain-hyaluronan-pentraxin-3-from-amniotic-membrane-suppresses-inflammation-and-scarring-in-murine-lacrimal-gland-and-conjunctiva-of-chronic-graft-versus-host-disease
#8
Yoko Ogawa, Hua He, Shin Mukai, Toshihiro Imada, Shigeru Nakamura, Chen-Wei Su, Megha Mahabole, Scheffer C G Tseng, Kazuo Tsubota
Chronic graft-versus-host disease (cGVHD) is a major complication of hematopoietic stem cell transplantation. Dry eye disease is the prominent ocular sequel of cGVHD and is caused by excessive inflammation and fibrosis in the lacrimal glands. Heavy chain-Hyaluronan/Pentraxin 3 (HC-HA/PTX3) is a complex purified from human amniotic membrane (AM) and known to exert anti-inflammatory and anti-scarring actions. In this study, we utilized a mouse model of cGVHD to examine whether HC-HA/PTX3 could attenuate dry eye disease elicited by cGVHD...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27739458/senescence-mediated-by-p16-ink4a-impedes-reprogramming-of-human-corneal-endothelial-cells-into-neural-crest-progenitors
#9
Wen-Juan Lu, Scheffer C G Tseng, Shuangling Chen, Sean Tighe, Yuan Zhang, Xin Liu, Szu-Yu Chen, Chen-Wei Su, Ying-Ting Zhu
Human corneal endothelial cells (HCECs) have limited proliferative capacity due to "contact-inhibition" at G1 phase. Such contact-inhibition can be delayed from Day 21 to Day 42 by switching EGF-containing SHEM to LIF/bFGF-containing MESCM through transient activation of LIF-JAK1-STAT3 signaling that delays eventual nuclear translocation of p16(INK4a). Using the latter system, we have reported a novel tissue engineering technique by implementing 5 weekly knockdowns with p120 catenin (p120) and Kaiso siRNAs since Day 7 to achieve effective expansion of HCEC monolayers to a transplantable size with a normal HCEC density, through reprogramming of HCECs into neural crest progenitors by activating p120-Kaiso-RhoA-ROCK-canonical BMP signaling...
October 14, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27621952/neurological-outcomes-after-human-umbilical-cord-patch-for-in-utero-spina-bifida-repair-in-a-sheep-model
#10
Ramesha Papanna, Lovepreet K Mann, Saul Snowise, Yisel Morales, Sanjay P Prabhu, Scheffer C G Tseng, Raymond Grill, Stephen Fletcher, Kenneth J Moise
OBJECTIVES: The objective of our study was to test the hypothesis that in utero repair of surgically created spina bifida in a sheep model using cryopreserved human umbilical cord (HUC) patch improves neurological outcome. METHODS: Spina bifida with myelotomy was surgically created in timed pregnant ewes at gestational day (GD) 75. The fetuses were randomly assigned to unrepaired versus HUC and treated at GD 95 and then delivered at GD 140. Neurological evaluation was performed using the Texas Spinal Cord Injury Scale (TSCIS), bladder control using ultrasound, and the hindbrain herniation...
July 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/27400004/cryopreserved-human-umbilical-cord-for-in-utero-myeloschisis-repair
#11
Ramesha Papanna, Stephen Fletcher, Kenneth J Moise, Lovepreet K Mann, Scheffer C G Tseng
BACKGROUND: There is an urgent need is for a regenerative patch for in utero repair of spina bifida in situations in which primary closure is difficult. CASES: We present two cases of large myeloschisis defects that underwent in utero spina bifida repair at midgestation with closure of the skin defect by using a cryopreserved human umbilical cord patch. The pregnancies were uncomplicated, and the births occurred at 37 weeks by planned cesarean delivery. The repair sites were intact with no evidence of cerebrospinal fluid leakage, with skin regenerated after delivery over a period of 3-4 weeks...
August 2016: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27226933/morselized-amniotic-membrane-tissue-for-refractory-corneal-epithelial-defects-in-cicatricial-ocular-surface-diseases
#12
Anny M S Cheng, Lorraine Chua, Victoria Casas, Scheffer C G Tseng
PURPOSE: To evaluate the clinical efficacy of morselized amniotic membrane and umbilical cord tissue (MAU) in treating refractory corneal epithelial defect in ocular cicatricial diseases. METHODS: Retrospective review of four patients with ocular cicatricial diseases treated with topical MAU for corneal epithelial defects refractory to conventional treatments including topical lubricants, autologous serum, bandage contact lens, and tarsorraphy. Their symptoms, corneal staining, conjunctival inflammation, and visual acuity were compared before and after treatment...
May 2016: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/27116665/hc-ha-ptx3-purified-from-amniotic-membrane-as-novel-regenerative-matrix-insight-into-relationship-between-inflammation-and-regeneration
#13
REVIEW
Scheffer C G Tseng
PURPOSE: Human limbal palisade of Vogt is an ideal model for studying and practicing regenerative medicine due to their accessibility. Nonresolving inflammation is a common manifestation of limbal stem cell deficiency, which is the major cause of corneal blindness, and presents as a threat to the success of transplanted limbal epithelial stem cells. Clinical studies have shown that the efficacy of transplantation of limbal epithelial stem cells can be augmented by transplantation of cryopreserved human amniotic membrane (AM), which exerts anti-inflammatory, antiscarring, and antiangiogenic action to promote wound healing...
April 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27063525/sutureless-cryopreserved-amniotic-membrane-graft-and-wound-healing-after%C3%A2-photorefractive-keratectomy
#14
Anton Vlasov, Rose K Sia, Denise S Ryan, Michael J Mines, Richard D Stutzman, Bruce A Rivers, Scheffer C G Tseng, Kraig S Bower
PURPOSE: To evaluate the effect of sutureless cryopreserved amniotic membrane (Prokera) on corneal wound healing after photorefractive keratectomy (PRK). SETTING: Center for Refractive Surgery, Walter Reed Army Medical Center, Washington, DC, USA. DESIGN: Prospective nonrandomized control trial. METHODS: Patients had PRK for myopia with or without astigmatism. A 20% ethanol solution was used to create a standard 9.0 mm epithelial defect followed by photoablation with the Allegretto Wave Eye-Q 400 Hz laser...
March 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26890668/restoration-of-fornix-tear-reservoir-in-conjunctivochalasis-with-fornix-reconstruction
#15
Anny M S Cheng, Han Y Yin, Rendian Chen, Sean Tighe, Hosam Sheha, Dandan Zhao, Victoria Casas, Scheffer C G Tseng
PURPOSE: To determine whether conjunctivochalasis (CCh) obliterates the fornix tear reservoir and to discern whether there is concomitant aqueous tear deficiency (ATD) dry eye. METHODS: Retrospective review of 18 eyes of 12 patients with CCh and ATD (CCh + ATD) and 18 eyes of 13 patients with CCh without ATD (CCh - ATD). Changes were compared before and after fornix reconstruction regarding symptoms, basal tear volumes, use of medications, conjunctival inflammation, and corneal staining...
June 2016: Cornea
https://www.readbyqxmd.com/read/26882981/acute-and-chronic-ophthalmic-involvement-in-stevens-johnson-syndrome-toxic-epidermal-necrolysis-a-comprehensive-review-and-guide-to-therapy-ii-ophthalmic-disease
#16
REVIEW
Sahar Kohanim, Sotiria Palioura, Hajirah N Saeed, Esen K Akpek, Guillermo Amescua, Sayan Basu, Preston H Blomquist, Charles S Bouchard, John K Dart, Xiaowu Gai, José A P Gomes, Darren G Gregory, Geetha Iyer, Deborah S Jacobs, Anthony J Johnson, Shigeru Kinoshita, Iason S Mantagos, Jodhbir S Mehta, Victor L Perez, Stephen C Pflugfelder, Virender S Sangwan, Kimberly C Sippel, Chie Sotozono, Bhaskar Srinivasan, Donald T H Tan, Radhika Tandon, Scheffer C G Tseng, Mayumi Ueta, James Chodosh
Our purpose is to comprehensively review the state of the art with regard to Stevens- Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), with particular attention to improving the management of associated ocular surface complications. SJS and TEN are two ends of a spectrum of immune-mediated disease, characterized in the acute phase by a febrile illness followed by skin and mucous membrane necrosis and detachment. Part I of this review focused on the systemic aspects of SJS/TEN and was published in the January 2016 issue of this journal...
April 2016: Ocular Surface
https://www.readbyqxmd.com/read/26549248/stevens-johnson-syndrome-toxic-epidermal-necrolysis-a-comprehensive-review-and-guide-to-therapy-i-systemic-disease
#17
REVIEW
Sahar Kohanim, Sotiria Palioura, Hajirah N Saeed, Esen K Akpek, Guillermo Amescua, Sayan Basu, Preston H Blomquist, Charles S Bouchard, John K Dart, Xiaowu Gai, José A P Gomes, Darren G Gregory, Geetha Iyer, Deborah S Jacobs, Anthony J Johnson, Shigeru Kinoshita, Iason S Mantagos, Jodhbir S Mehta, Victor L Perez, Stephen C Pflugfelder, Virender S Sangwan, Kimberly C Sippel, Chie Sotozono, Bhaskar Srinivasan, Donald T H Tan, Radhika Tandon, Scheffer C G Tseng, Mayumi Ueta, James Chodosh
The intent of this review is to comprehensively appraise the state of the art with regard to Stevens Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), with particular attention to the ocular surface complications and their management. SJS and TEN represent two ends of a spectrum of immune-mediated, dermatobullous disease, characterized in the acute phase by a febrile illness followed by skin and mucous membrane necrosis and detachment. The widespread keratinocyte death seen in SJS/TEN is rapid and irreversible, and even with early and aggressive intervention, morbidity is severe and mortality not uncommon...
January 2016: Ocular Surface
https://www.readbyqxmd.com/read/26509105/engineering-of-human-corneal-endothelial-grafts
#18
Ying-Ting Zhu, Sean Tighe, Shuang-Ling Chen, Thomas John, Winston Y Kao, Scheffer C G Tseng
Human corneal endothelial cells (HCEC) play a pivotal role in maintaining corneal transparency. Unlike in other species, HCEC are notorious for their limited proliferative capacity in vivo after diseases, injury, aging, and surgery. Persistent HCEC dysfunction leads to sight-threatening bullous keratopathy with either an insufficient cell density or retrocorneal membrane due to endothelial-mesenchymal transition (EMT). Presently, the only solution to restore vision in eyes inflicted with bullous keratopathy or retrocorneal membrane relies upon transplantation of a cadaver human donor cornea containing a healthy corneal endothelium...
September 2015: Current Ophthalmology Reports
https://www.readbyqxmd.com/read/26489897/cryopreserved-human-umbilical-cord-patch-for-in-utero-spina-bifida-repair
#19
R Papanna, K J Moise, L K Mann, S Fletcher, R Schniederjan, M B Bhattacharjee, R J Stewart, S Kaur, S P Prabhu, S C G Tseng
OBJECTIVE: To identify a patch system to repair surgically created spina bifida in a sheep model for its efficacy in healing the skin defect, protecting the underlying spinal cord and reducing the Chiari II malformation. METHODS: Spina bifida was created surgically in 16 fetuses from eight timed-pregnant sheep at gestational age of 75 days. Two fetuses did not survive the procedure. Repeat hysterotomy was performed at 95 days' gestation to cover the defect with either biocellulose film with underwater adhesive (BCF-adhesive) (n = 7) or human umbilical cord with suture (HUC-suture) (n = 7)...
February 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/26387870/accelerated-restoration-of-ocular-surface-health-in-dry-eye-disease-by-self-retained-cryopreserved-amniotic-membrane
#20
Anny M S Cheng, Dandan Zhao, Rendian Chen, Han Y Yin, Sean Tighe, Hosam Sheha, Victoria Casas, Scheffer C G Tseng
PURPOSE: To evaluate the clinical efficacy of self-retained cryopreserved amniotic membrane in treating dry eye disease. METHODS: Retrospective review of 10 patients treated with self-retained cryopreserved amniotic membrane (PROKERA® Slim [PKS], Bio-Tissue, Miami, FL) for moderate-to-severe dry eye refractory to conventional maximal medical treatments. Patients' symptoms, use of medications, conjunctival inflammation, corneal staining, and visual acuity were compared before and after treatment...
January 2016: Ocular Surface
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