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https://www.readbyqxmd.com/read/28970131/self-assembly-of-a-ibuprofen-peptide-conjugate-to-suppress-ocular-inflammation
#1
Xinxin Yu, Zhaoliang Zhang, Jing Yu, Hao Chen, Xingyi Li
In the present study, we designed and synthesized a hydrogelator comprised of ibuprofen (IPF) and GFFY peptide linked through a cleavable ester bond. We found that the synthesized hydrogelator could spontaneously self-assemble into a hydrogel under a heating-cooling process. When the hydrogel was acted upon by an esterase, IPF was released in a sustained manner. Moreover, the hydrogel had significantly elevated anti-inflammatory efficacy, compared with IPF, in RAW264.7 macrophages. The hydrogel showed good cytocompatibility, as well as excellent ocular biocompatibility when instilled topically...
September 29, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28941621/safety-and-efficacy-of-a-mycoplasma-gallisepticum-oppd-knockout-mutant-as-a-vaccine-candidate
#2
Chi-Wen Tseng, Chien-Ju Chiu, Anna Kanci, Amir H Noormohammadi, Glenn F Browning, Philip F Markham
Control of the important poultry pathogen Mycoplasma gallisepticum is highly dependent on safe and efficacious attenuated vaccines. In order to assess a novel vaccine candidate we evaluated the safety and efficacy of the M. gallisepticum mutant 26-1. The oppD1 gene in this mutant has been interrupted by a signature-tagged transposon and previous studies have shown that it can colonise the respiratory tract of chickens without inducing significant disease. The capacity of the oppD1 mutant to induce protective immunity in the respiratory tract after vaccination by eye-drop was assessed by challenging vaccinated birds with an aerosol of the virulent M...
October 27, 2017: Vaccine
https://www.readbyqxmd.com/read/28874077/effects-of-sunitinib-and-bevacizumab-on-vegf-and-mirna-levels-on-corneal-neovascularization
#3
Harun Cakmak, Esra Gokmen, Gokay Bozkurt, Tolga Kocaturk, Kemal Ergin
AIM: To evaluate the effects of sunitinib (0.5 mg/ml) and bevacizumab (5 mg/ml) on VEGF-A, VEGFR-2 and microRNA (miRNA) levels on corneal neovascularization (CNV). METHODS: In this study, CNV was induced by silver nitrate application to the cornea, and 40 Albino male rats were equally divided into four subgroups: Group 1 (sunitinib): After silver nitrate application to the cornea, 0.5 mg/ml sunitinib eyedrop was administered twice daily for two weeks (n = 10)...
September 20, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28868789/the-phenylephrine-concentration-response-relationship-for-blood-pressure-after-nasal-delivery-in-children
#4
Brian J Anderson, Lisa K Christensen, Valerie E Armstead, David P Bilyeu, Kenneth E Johnson, Robert H Friesen
BACKGROUND: Intranasal phenylephrine is commonly used to vasoconstrict the nasal mucosa, reducing bleeding associated with nasotracheal intubation or endoscopic sinus surgery. There are few data quantifying either absorption pharmacokinetics or phenylephrine concentration effect on blood pressure in children. METHODS: Published observations of plasma concentration and blood pressure changes after phenylephrine nasal administration (0.1 mL kg(-1) , 0.25% or 0.5%) in children (n = 52, 2-12 years, 10-40 kg) were pooled with those in adults (23-81 years) given phenylephrine 2...
September 4, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28846481/effectiveness-of-combined-tear-film-therapy-in-patients-with-evaporative-dry-eye-with-short-tear-film-breakup-time
#5
Yung Hui Kim, Yeon Soo Kang, Hyo Seok Lee, Won Choi, In Cheon You, Kyung Chul Yoon
PURPOSE: The aim of this study was to evaluate the effectiveness of combined tear film therapy targeted to aqueous, mucin, and lipid layers in patients with refractory evaporative dry eye (EDE) with short tear film breakup time (TBUT). METHODS: The patients who had EDE with short TBUT and severe symptoms refractory to artificial tears were treated with hyaluronic acid (HA) 0.15% and diquafosol tetrasodium (DQS) 3% (Group 1), HA and carbomer-based lipid-containing eyedrops (Liposic EDO Gel, LPO) (Group 2), or HA, DQS, and LPO (Group 3)...
October 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28782485/a-low-concentration-of-tacrolimus-semifluorinated-alkane-sfa-eyedrop-suppresses-intraocular-inflammation-in-experimental-models-of-uveitis
#6
S De Majumdar, M Subinya, J Korward, A Pettigrew, D Scherer, H Xu
PURPOSE: Corticosteroids remain the mainstay therapy for uveitis, a major cause of blindness in the working age population. However, a substantial number of patients cannot benefit from the therapy due to steroids resistance or intolerance. Tacrolimus has been used to treat refractory uveitis through systemic administration. The aim of this study was to evaluate the therapeutic potential of 0.03% tacrolimus eyedrop in mouse models of uveitis. METHODS: 0.03% tacrolimus in perfluorobutylpentane (F4H5) (0...
2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28777385/efficacy-of-eyedrops-containing-cross-linked-hyaluronic-acid-and-coenzyme-q10-in-treating-patients-with-mild-to-moderate-dry-eye
#7
Elisa I Postorino, Laura Rania, Emanuela Aragona, Carmen Mannucci, Angela Alibrandi, Gioacchino Calapai, Domenico Puzzolo, Pasquale Aragona
PURPOSE: Dry eye disease (DED) is a common condition causing substantial burden. A randomized, controlled, single-masked study was performed in 40 patients with mild to moderate DED to evaluate the efficacy and safety of a collyrium based on crosslinked hyaluronic acid (XLHA) with coenzyme Q10 (CoQ10). METHODS: Enrolled subjects were divided into 2 groups: group A, treated with XLHA + CoQ10; and group B, treated with hyaluronic acid (HA). Eyedrops were administered 4 times daily for 3 months...
August 2, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28768500/long-term-safety-and-tolerability-of-tafluprost-0-0015-vs-timolol-0-1-preservative-free-in-ocular-hypertensive-and-in-primary-open-angle-glaucoma-patients-a-cross-sectional-study
#8
Teresa Rolle, Roberta Spinetta, Raffaele Nuzzi
BACKGROUND: The effects of preservatives of antiglaucoma medications on corneal surface and tear function have been widely shown in literature; it's not the same as regards the active compounds themselves. The purpose of our study was to compare Ocular Surface Disease (OSD) signs and symptoms of Tafluprost 0.0015% versus preservative free (PF) Timolol 0.1% eyedrops in ocular hypertensive (OH) and in primary open-angle glaucoma (POAG) patients. METHODS: A cross-sectional study included patients in monotherapy for at least 36 months with Tafluprost 0...
August 3, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28676989/in-vivo-and-ex-vivo-evaluation-of-cell-cell-interactions-adhesion-and-migration-in-ocular-surface-of-patients-undergone-excimer-laser-refractive-surgery-after-topical-therapy-with-different-lubricant-eyedrops
#9
Roberta Calienno, Claudia Curcio, Manuela Lanzini, Mario Nubile, Leonardo Mastropasqua
PURPOSE: To investigate, in vivo by means of in vivo confocal microscopy (IVCM) and ex vivo by impression cytology, epithelial cellular damage after excimer laser refractive surgery in patients under different topical lubricant therapies. METHODS: Two hundred eyes of 100 patients, undergone bilateral excimer laser refractive surgery for medium myopic error correction [spherical equivalent refraction from -1.75 to -3.50 dioptres (D) with refractive astigmatism under -0...
July 4, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28676431/efficacy-of-oral-immunotherapy-with-a-rice-based-edible-vaccine-containing-hypoallergenic-japanese-cedar-pollen-allergens-for-treatment-of-established-allergic-conjunctivitis-in-mice
#10
Ken Fukuda, Waka Ishida, Yosuke Harada, Yuhya Wakasa, Hidenori Takagi, Fumio Takaiwa, Atsuki Fukushima
BACKGROUND: We have previously shown that prophylactic oral administration of transgenic rice seeds expressing hypoallergenic modified antigens suppressed the development of allergic conjunctivitis induced by Japanese cedar pollen. We have now investigated the efficacy of oral immunotherapy with such transgenic rice for established allergic conjunctivitis in mice. METHODS: BALB/c mice were sensitized with two intraperitoneal injections of Japanese cedar pollen in alum, challenged with pollen in eyedrops, and then fed for 16 days with transgenic rice seeds expressing modified Japanese cedar pollen allergens Cry j 1 and Cry j 2 or with nontransgenic rice seeds as a control...
July 1, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28636261/characteristics-of-corneal-biomechanical-responses-detected-by-a-non-contact-scheimpflug-based-tonometer-in-eyes-with-glaucoma
#11
Younhea Jung, Hae-Young L Park, Hee Jung Yang, Chan Kee Park
PURPOSE: To determine the corneal biomechanical properties in eyes with glaucoma using a non-contact Scheimpflug-based tonometer. METHODS: Corneal biomechanical responses were examined using a non-contact Scheimpflug-based tonometer. The tonometer parameters of the normal control group (n = 75) were compared with those of the glaucoma group (n = 136), including an analysis of glaucoma subgroups categorized by visual field loss. RESULTS: After adjusting for potential confounding factors, including the intraocular pressure (IOP), central corneal thickness (CCT), age and axial length, the deformation amplitude was smaller in the glaucoma group (1...
June 21, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28543755/comparison-of-two-formulations-of-topical-timolol-for-the-treatment-of-infantile-hemangiomas
#12
Michelle Si Ying Ng, Yong-Kwang Tay, Shanna Shan-Yi Ng, Alice Yee Wah Foong, Mark Jean-Aan Koh
This report compares the efficacy of timolol maleate 0.5% eyedrops (TM) with that of timolol maleate 0.5% ophthalmic gel-forming solution in the treatment of infantile hemangiomas (IHs). Sixty-six patients undergoing treatment with topical timolol were retrospectively reviewed; our results revealed similar therapeutic efficacies for both types of timolol formulations. Early treatment initiation (<3 mos) and superficial lesions correlated with better treatment response. TM eyedrops may be a more cost effective, equally efficacious modality of treatment for IHs...
July 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28494565/-the-protection-of-hydrogen-rich-saline-on-a-rat-dry-eye-model-induced-by-scopolamine-hydrobromide
#13
Y Y Chu, N Hua, Y S Ru, S Z Zhao
Objective: To evaluate the effect of hydrogen-rich saline (HRS) on dry eye rats induced by subcutaneous injection of scopolamine hydrobromide. Methods: Experiment research. Thirty female Wistar rats at about six weeks old were randomly divided into the normal group, dry eye group, HRS eyedrops group, normal saline eyedrops group (NS), HRS intraperitoneal injection group and NS intraperitoneal injection group, with 5 rats in each group. The dry eye was induced by subcutaneous injection of scopolamine hydrobromide in the latter five groups...
May 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28255839/impact-of-dehydration-and-fasting-on-intraocular-pressure-and-corneal-biomechanics-measured-by-the-ocular-response-analyzer
#14
Betul Seher Uysal, Necati Duru, Umut Ozen, Mucella Arikan Yorgun, Emine Akcay, Mehtap Caglayan, Nurullah Cagil
PURPOSE: To investigate the effects of dehydration and fasting on the intraocular pressure (IOP) and corneal biomechanics during Ramadan in healthy subjects. METHODS: A total of 36 healthy fasting male volunteers with a mean age of 32.7 ± 5.1 years (range 28-38 years) were enrolled in the study. A Reichert Ocular Response Analyzer (ORA) was used to measure the corneal resistance factor (CRF), corneal hysteresis (CH), Goldman-correlated IOP (IOPg), and corneal-compensated IOP (IOPcc), additionally IOP with Goldmann applanation tonometer (IOP-GAT) was taken...
March 2, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28214551/effect-of-benzalkonium-chloride-on-trabecular-meshwork-cells-in-a-new-in-vitro-3d-trabecular-meshwork-model-for-glaucoma
#15
Meryem Bouchemi, Christophe Roubeix, Karima Kessal, Luisa Riancho, Anne-Laure Raveu, Hayet Soualmia, Christophe Baudouin, Françoise Brignole-Baudouin
PURPOSE: To validate a new culture model of primary human trabecular meshwork cells (p-hTMCs) using Matrigel®, in order to mimic in vitro 3D-TM organization, and to investigate the proinflammatory effect of benzalkonium chloride (BAK) in 3D p-hTMC cultures. METHODS: p-hTMCs, seeded onto Matrigel®-coated inserts were stimulated with BAK (10(-4)%), dexamethasone (DEX) (10(-6)M) or transforming growth factor-beta 2 (TGF-β2) (5ng/ml) for 48h and observed with confocal microscopy...
February 16, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28115846/preparation-of-arginine-glycine-aspartic-acid-modified-biopolymeric-nanoparticles-containing-epigalloccatechin-3-gallate-for-targeting-vascular-endothelial-cells-to-inhibit-corneal-neovascularization
#16
Che-Yi Chang, Ming-Chen Wang, Takuya Miyagawa, Zhi-Yu Chen, Feng-Huei Lin, Ko-Hua Chen, Guei-Sheung Liu, Ching-Li Tseng
Neovascularization (NV) of the cornea can disrupt visual function, causing ocular diseases, including blindness. Therefore, treatment of corneal NV has a high public health impact. Epigalloccatechin-3-gallate (EGCG), presenting antiangiogenesis effects, was chosen as an inhibitor to treat human vascular endothelial cells for corneal NV treatment. An arginine-glycine-aspartic acid (RGD) peptide-hyaluronic acid (HA)-conjugated complex coating on the gelatin/EGCG self-assembly nanoparticles (GEH-RGD NPs) was synthesized for targeting the αvβ3 integrin on human umbilical vein endothelial cells (HUVECs) in this study, and a corneal NV mouse model was used to evaluate the therapeutic effect of this nanomedicine used as eyedrops...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28044424/ocular-nerve-growth-factor-administration-modulates-brain-derived-neurotrophic-factor-signaling-in-prefrontal-cortex-of-healthy-and-diabetic-rats
#17
Pamela Rosso, Sara De Nicolò, Valentina Carito, Marco Fiore, Angela Iannitelli, Sandra Moreno, Paola Tirassa
AIMS: Nerve growth factor (NGF) eyedrops (ed-NGF) activate brain neurons, stimulate growth factors, including brain-derived neurotrophic factor (BDNF), and exert neuroprotection in the forebrain of streptozotocin-induced diabetic rats (STZ rats). In this study, the effects of ed-NGF on BDNF signaling in the prefrontal cortex (PFC) were explored in healthy and STZ-diabetic rats, in which cortical neuronal and axonal loss, and altered circulating BDNF associated with depressive phenotype are also described...
January 3, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28009414/bromfenac-eyedrops-in-the-treatment-of-diabetic-macular-edema-a-pilot-study
#18
Antonio Pinna, Francesco Blasetti, Giuseppe D'Amico Ricci, Francesco Boscia
PURPOSE: To evaluate the efficacy and safety of topical bromfenac in patients with newly diagnosed diabetic macular edema (DME). METHODS: In this pilot study including 17 patients with monocular, newly diagnosed DME, diagnosis of DME was established by the detection of retinal thickening at or within 500 μm of the center of the macula on ophthalmoscopic examination, according to the Early Treatment Diabetic Retinopathy Study classification. Central macular thickness (CMT) was determined by optical coherence tomography...
May 11, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/27941330/hyperosmolarity-and-benzalkonium-chloride-differently-stimulate-inflammatory-markers-in-conjunctiva-derived-epithelial-cells-in-vitro
#19
Elise Warcoin, Chloé Clouzeau, Christophe Roubeix, Anne-Laure Raveu, David Godefroy, Luisa Riancho, Christophe Baudouin, Françoise Brignole-Baudouin
Tear hyperosmolarity is known to cause ocular surface inflammation in dry eye syndrome. Benzalkonium chloride (BAK), an eyedrop preservative, is known to induce dry eye in long-term-treated patients. Analyzing the modulation of the proinflammatory potential of hyperosmolarity in the presence of BAK on the conjunctiva could give new insights into the effect of this preservative on the disease. In a hyperosmolar model on a conjunctiva-derived cell line, and in the presence of BAK, we evaluated key inflammatory markers [CCL2, IL-8, IL-6, macrophage migration inhibitory factor (MIF) and intercellular adhesion molecule (ICAM)-1] as well as the osmoprotectant element nuclear factor of activated T cells (NFAT)5 using ELISA, RT-qPCR or immunofluorescence staining...
2017: Ophthalmic Research
https://www.readbyqxmd.com/read/27932860/rebound-macular-edema-following-oral-acetazolamide-therapy-for-juvenile-x-linked-retinoschisis-in-an-italian-family
#20
Maria Silvana Galantuomo, Maurizio Fossarello, Alberto Cuccu, Roberta Farci, Markus N Preising, Birgit Lorenz, Pietro Emanuele Napoli
BACKGROUND: Juvenile X-linked retinoschisis (RS1, OMIM: 312700) is a hereditary vitreoretinal dystrophy characterized by bilateral foveal schisis and, in half of the patients, splitting through the nerve fiber layer in the peripheral retina. In the first decade of life, patients usually develop a decrease in visual acuity. Long-term visual outcomes can be poor due to the limited number of known successful treatments. PURPOSE: The purposes of this study were to present, for the first time, a p...
2016: Clinical Ophthalmology
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