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https://www.readbyqxmd.com/read/29785085/-wet-transepithelial-phototherapeutic-keratectomy-in-the-management-of-persistent-epithelial-defects-in-the-graft
#1
Sergei V Churashov, Elena V Kudryashova, Alexei N Kulikov, Ernest V Boiko, Valerii F Chernysh, Dmitrii S Maltsev
Purpose: This study aimed to evaluate the efficacy of "wet" transepithelial phototherapeutic keratectomy (TE-PTK) for treating persistent epithelial defects (PEDs) in the corneal graft following penetrating keratoplasty (PKP). Methods: This study describes a noncomparative, prospective interventional case series. Patients with post-PKP graft epithelial defects lasting >3 months despite previous treatments with extensive wear soft contact lenses, amniotic membrane transplantation, and tarsorrhaphy were treated with wet TE-PTK...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29748250/effective-silencing-of-enac-by-sirna-delivered-with-epithelial-targeted-nanocomplexes-in-human-cystic-fibrosis-cells-and-in-mouse-lung
#2
Aristides D Tagalakis, Mustafa M Munye, Rositsa Ivanova, Hanpeng Chen, Claire M Smith, Ahmad M Aldossary, Luca Z Rosa, Dale Moulding, Josephine L Barnes, Konstantinos N Kafetzis, Stuart A Jones, Deborah L Baines, Guy W J Moss, Christopher O'Callaghan, Robin J McAnulty, Stephen L Hart
INTRODUCTION: Loss of the cystic fibrosis transmembrane conductance regulator in cystic fibrosis (CF) leads to hyperabsorption of sodium and fluid from the airway due to upregulation of the epithelial sodium channel (ENaC). Thickened mucus and depleted airway surface liquid (ASL) then lead to impaired mucociliary clearance. ENaC regulation is thus a promising target for CF therapy. Our aim was to develop siRNA nanocomplexes that mediate effective silencing of airway epithelial ENaC in vitro and in vivo with functional correction of epithelial ion and fluid transport...
May 10, 2018: Thorax
https://www.readbyqxmd.com/read/29702971/plasma-rich-in-growth-factors-membrane-as-coadjuvant-treatment-in-the-surgery-of-ocular-surface-disorders
#3
Ronald M Sanchez-Avila, Jesús Merayo-Lloves, Ana C Riestra, Silvia Berisa, Carlos Lisa, José Alfonso Sánchez, Francisco Muruzabal, Gorka Orive, Eduardo Anitua
To evaluate the safety and efficacy of the surgical use of plasma rich in growth factors fibrin membrane (mPRGF) in different ocular surface pathologies.Fifteen patients with different corneal and conjunctival diseases were included in the study. Patients were grouped according to the use of mPRGF as graft (corneal and/or conjunctival) or dressing; they were also grouped according to the surgical subgroup of intervention (persistent corneal ulcer [PCU], keratoplasty, superficial keratectomy, corneal perforation, and pterygium)...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29688404/heparan-sulfate-proteoglycan-sulfation-regulates-uterine-differentiation-and-signaling-during-embryo-implantation
#4
Yan Yin, Adam Wang, Li Feng, Yu Wang, Hong Zhang, Ivy Zhang, Brent Bany, Liang Ma
To prepare for embryo implantation, uterus must undergo a series of reciprocal interactions between the uterine epithelium and the underlying stroma, which are orchestrated by ovarian hormones. During this process, multiple signaling pathways are activated to direct cell proliferation and differentiation, which render the uterus receptive to the implanting blastocysts. One important modulator of these signaling pathways is the cell surface and extracellular matrix macromolecules, heparan sulfate proteoglycans (HSPGs)...
April 23, 2018: Endocrinology
https://www.readbyqxmd.com/read/29681834/amnwiotic-membrane-transplantation-as-a-treatment-for-sterile-infiltration-and-corneal-melting-after-corneal-crosslinking-for-keratoconus
#5
Takanori Sasaki, Takeshi Ide, Ikuko Toda, Naoko Kato
We report a case of corneal melting through sterile infiltration presumably due to excessive use of nonsteroidal anti-inflammatory eye drops after corneal crosslinking (CXL). It was treated using steroids combined with amniotic membrane transplantation (AMT). A 33-year-old man with progressing keratoconus underwent left eye CXL. We prescribed betamethasone and levofloxacin eye drops 5 times daily and diclofenac sodium eye drops 3 times daily for 3 days. Three days after CXL, there was a persistent epithelial defect and the left corneal stroma was clouded...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29643792/a-case-of-neurotrophic-keratopathy-associated-with-nasopharyngeal-carcinoma
#6
Tomoko Sato, Koji Sugioka, Aya Kodama-Takahashi, Masahiko Fukuda, Hiroshi Mishima, Yoshikazu Shimomura
Purpose: To report a case of neurotrophic keratopathy associated with nasopharyngeal carcinoma. Case Report: A 59-year-old man who had been diagnosed with a nasopharyngeal carcinoma was referred to the authors because of visual disturbance and pain in his right eye. Slit-lamp examination revealed a corneal epithelial defect and corneal stromal edema surrounding the epithelial defect area in his right eye. Magnetic resonance imaging showed a mass in his cavernous sinus, which was identified as nasopharyngeal carcinoma (NPC)...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29607781/effect-of-donor-cornea-on-the-surgical-outcomes-of-penetrating-keratoplasty-imported-cornea-versus-domestic-cornea
#7
Evin Singar-Ozdemir, Ayse Burcu, Baris Oral, Zuleyha Yalniz-Akkaya, Selma Uzman, Sema Tamer Kaderli, Firdevs Ornek
OBJECTIVES: In this study, we compared the surgical outcomes of penetrating keratoplasty using domestic and imported donor corneas. MATERIALS AND METHODS: We retrospectively evaluated 200 eyes and 200 consecutive patients who underwent penetrating keratoplasty by using domestic and imported donor corneas between January 2013 and December 2013. The donor characteristics, preoperative clinical features, and clinical outcomes at 6, 12, 24, and 36 months were assessed...
April 2, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29507278/amniotic-membrane-transplantation-in-reconstructive-and-regenerative-ophthalmology
#8
Tobias Röck, Karl Ulrich Bartz-Schmidt, Johanna Landenberger, Matthias Bramkamp, Daniel Röck
BACKGROUND The goal of this study was to investigate numbers, indications, surgical techniques, and experiences of amniotic membrane transplantation at the University Eye Hospital Tübingen over the last 16 years. MATERIAL AND METHODS Data from all amniotic membrane transplantations from January 2001 to December 2016 were retrospectively analyzed. Data was accessed from the electronic database and the annual reports of the Eye Bank at the University Eye Hospital Tübingen. RESULTS A total of 771 amniotic membrane transplantations were performed between 2001 and 2016 at the University Eye Hospital Tübingen...
March 6, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29390522/delayed-onset-mycobacterium-intracellulare-keratitis-after-laser-in-situ-keratomileusis-a-case-report-and-literature-review
#9
REVIEW
JaeSang Ko, Se Kyung Kim, Dong Eun Yong, Tae-Im Kim, Eung Kweon Kim
RATIONALE: Infectious keratitis is a relatively uncommon but potentially sight-threatening complication of laser in situ keratomileusis (LASIK). Mycobacterial keratitis is usually regarded as late onset keratitis among post-LASIK keratitis. There has been no documented case of Mycobacterium intracellulare post-LASIK keratitis of a long-latent period. PATIENT CONCERNS: A 36-year-old man was referred to our out-patient clinic, for persistent corneal epithelial defect with intrastromal infiltration...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29372114/the-effect-of-topical-substance-p-plus-insulin-like-growth-factor-1-igf-1-on-epithelial-healing-after-photorefractive-keratectomy-in-rabbits
#10
Zahra Ghiasi, Tracy Gray, Phat Tran, Richard Dubielzig, Chris Murphy, David L McCartney, Ted W Reid
Purpose: To determine whether topical Substance-P (SP) plus insulin-like growth factor-1 (IGF-1) can improve corneal healing after photorefractive surface ablation in a rabbit. Methods: After a 9.0-mm corneal de-epithelialization using a combination of chemical (18% alcohol) and mechanical debridement, excimer photorefractive surface ablation was performed bilaterally in eight rabbits (16 eyes) with an 8.0-mm ablation zone and 70-μm depth. The right eye was treated with SP (250 μg/mL) and IGF-1 (25 ng/mL) in hyaluronic acid, one drop twice a day, and the other eye treated with only hyaluronic acid...
January 2018: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29355667/wound-healing-in-the-eye-therapeutic-prospects
#11
Mohammed Ziaei, Carol Greene, Colin R Green
In order to maintain a smooth optical surface the corneal epithelium has to continuously renew itself so as to maintain its function as a barrier to fluctuating external surroundings and various environmental insults. After trauma, the cornea typically re-epithelializes promptly thereby minimizing the risk of infection, opacification or perforation. A persistent epithelial defect (PED) is usually referred to as a non-healing epithelial lesion after approximately two weeks of treatment with standard therapies to no avail...
January 20, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29326852/unusual-course-of-crystalline-keratopathy-in-a-patient-with-graft-versus-host-disease
#12
Başak Bostancı, Yonca Aydın Akova
We present a case of infectious crystalline keratopathy in a patient with Graft-versus-Host disease (GVHD) who developed satellite fungal keratitis. A 51-year-old man was referred for bilateral total persistent corneal epithelial defects with severe dry eye. Although persistent epithelial defect healed with medical therapy, he developed stromal keratitis with satellite lesions confirmed to be secondary to Candida albicans. After three months of antifungal treatment and debridement, improvement of the infiltrates was obtained...
December 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29324584/maternal-serum-eye-drops-in-the-management-of-pediatric-persistent-corneal-epithelial-defects-a-case-series
#13
Ashton J Kalhorn, Kirstin L Tawse, Avni A Shah, Jennifer L Jung, Darren G Gregory, Emily A McCourt
PURPOSE: We report our experience with the use of maternally derived serum eye drops as adjunctive treatment in the management of pediatric persistent corneal epithelial defects. METHODS: Five eyes of 4 patients were identified in a retrospective review of pediatric patients with persistent corneal epithelial defects who received maternal serum drops. Diagnoses associated with the defects comprised pontine tegmental cap dysplasia with bilateral cranial nerve V1, V2, V3, and VII palsies; pontine tegmental cap dysplasia with left cranial nerve V1, VII, and VIII palsies; traumatic left cranial nerve II, V1, V2, and VI palsies due to a basilar skull fracture; and Stevens-Johnson syndrome with ocular involvement...
January 10, 2018: Cornea
https://www.readbyqxmd.com/read/29322554/transcription-factor-foxc1-is-involved-in-anterior-part-of-cranial-base-formation
#14
Nandar Mya, Toshiko Furutera, Shigeru Okuhara, Tsutomu Kume, Masaki Takechi, Sachiko Iseki
The cranial base is a structure mainly formed through endochondral ossification and integrated into the craniofacial complex, which acts as an underlying platform for the developing brain. Foxc1 is an indispensable regulator during intramembranous and endochondral ossification. In this study, we found that the spontaneous loss of Foxc1 function in a mouse (congenital hydrocephalous), Foxc1ch/ch , demonstrated the anterior cranial base defects, including unossified presphenoid and lack of middle part of the basisphenoid bone...
January 11, 2018: Congenital Anomalies
https://www.readbyqxmd.com/read/29315443/pathophysiology-of-corneal-scarring-in-persistent-epithelial-defects-after-prk-and-other-corneal-injuries
#15
Steven E Wilson, Carla S Medeiros, Marcony R Santhiago
PURPOSE: To analyze corneal persistent epithelial defects that occurred at 3 to 4 weeks after -4.50 diopter (D) photorefractive keratectomy (PRK) in rabbits and apply this pathophysiology to the treatment of persistent epithelial defects that occur after any corneal manipulations or diseases. METHODS: Two of 168 corneas that had -4.50 D PRK to study epithelial basement membrane regeneration developed spontaneous persistent epithelial defects that did not heal at 3 weeks after PRK...
January 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29259918/corneal-matrix-repair-therapy-with-the-regenerating-agent-in-neurotrophic-persistent-epithelial-defects
#16
Canan Asli Utine, Ceren Engin Durmaz, Nilufer Koçak
No abstract text is available yet for this article.
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29207623/isoxazole-compound-ml327-blocks-myc-expression-and-tumor-formation-in-neuroblastoma
#17
Eric J Rellinger, Chandrasekhar Padmanabhan, Jingbo Qiao, Brian T Craig, Hanbing An, Jing Zhu, Hernán Correa, Alex G Waterson, Craig W Lindsley, R Daniel Beauchamp, Dai H Chung
Neuroblastomas are the most common extracranial solid tumors in children and arise from the embryonic neural crest. MYCN -amplification is a feature of ∼30% of neuroblastoma tumors and portends a poor prognosis. Neural crest precursors undergo epithelial-to-mesenchymal transition (EMT) to gain migratory potential and populate the sympathoadrenal axis. Neuroblastomas are posited to arise due to a blockade of neural crest differentiation. We have recently reported effects of a novel MET inducing compound ML327 ( N -(3-(2-hydroxynicotinamido) propyl)-5-phenylisoxazole-3-carboxamide) in colon cancer cells...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29172876/limbal-stem-cell-transplantation-and-complications
#18
REVIEW
Jia Yin, Ula Jurkunas
Corneal epithelial stem cells are adult somatic stem cells located at the limbus and represent the ultimate source of transparent corneal epithelium. When these limbal stem cells become dysfunctional or deficient, limbal stem cell deficiency (LSCD) develops. LSCD is a major cause of corneal scarring and is particularly prevalent in chemical and thermal burns of the ocular surface. LSCD leads to conjunctivalization of the corneal surface, neovascularization, recurrent or persistent epithelial defects, ocular surface inflammation, and scarring that, in turn, lead to decreased vision, pain, and impaired quality of life...
2018: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/29129266/single-cell-defects-cause-a-long-range-mechanical-response-in-a-confluent-epithelial-cell-layer
#19
Susanne Karsch, Deqing Kong, Jörg Großhans, Andreas Janshoff
Epithelial cells are responsible for tissue homeostasis and form a barrier to maintain chemical gradients and mechanical integrity. Therefore, rapid wound closure is crucial for proper tissue function and restoring homeostasis. In this study, the mechanical properties of cells surrounding a single-cell wound are investigated during closure of the defect. The single-cell wound is induced in an intact layer using micropipette action and responses in neighboring cells are monitored with atomic force microscopy...
December 19, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29104070/the-role-of-amniotic-membrane-extract-eye-drop-ameed-in-in-vivo-cultivation-of-limbal-stem-cells
#20
Alireza Baradaran-Rafii, Niloufar Shayan Asl, Marzieh Ebrahimi, Sayena Jabbehdari, Shahram Bamdad, Danial Roshandel, Medi Eslani, Maryam Momeni
BACKGROUND: Limbal stem cell transplantation (LSCT) is the definitive treatment for total limbal stem cell deficiency (LSCD). This study evaluates the anatomical and visual outcomes of a surgical technique supplemented by amniotic membrane extract eye drop (AMEED) for in vivo cultivation of limbal stem cells (LSCs). METHODS: One small limbal block (2 × 1 mm) harvested from the contralateral healthy eye was transferred to the diseased eye, which had been already covered by cryopreserved amniotic membrane (N = 20)...
January 2018: Ocular Surface
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