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https://www.readbyqxmd.com/read/28231566/one-year-outcomes-of-1-pro-re-nata-versus-3-pro-re-nata-intravitreal-aflibercept-injection-for-neovascular-age-related-macular-degeneration
#1
Kei Takayama, Hiroki Kaneko, Tadasu Sugita, Ruka Maruko, Kyoko Hattori, Eimei Ra, Kenichi Kawano, Keiko Kataoka, Yasuki Ito, Hiroko Terasaki
PURPOSE: We compared 1-year outcomes of 1 + pro re nata (PRN) versus 3 + PRN of intravitreal aflibercept injection (IAI) for age-related macular degeneration (AMD). METHODS: Forty-two eyes with naïve AMD received 3 + PRN IAI treatment and 47 eyes with naïve AMD received 1 + PRN IAI treatment. Visual acuity (VA), central retinal thickness (CRT), and central choroidal thickness (CCT) and number of administered IAIs during 12 months were compared. RESULTS: VAs improved, and CRTs reduced significantly at any given month from baseline in both groups (p < 0...
February 24, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28228623/elucidation-of-mechanism-of-blood-brain-barrier-damage-for-prevention-and-treatment-of-vascular-dementia
#2
Masaki Ueno
It is well-known that the blood-brain barrier (BBB) plays significant roles in transporting intravascular substances into the brain. The BBB in cerebral capillaries essentially impedes the influx of intravascular compounds from the blood to the brain, while nutritive substances, such as glucose, can be selectively transported through several types of influx transporters in endothelial cells. In the choroid plexus, intravascular substances can invade the parenchyma as fenestrations exist in endothelial cells of capillaries...
February 22, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28228436/triamcinolone-emboli-leading-to-central-retinal-artery-occlusion-a-multimodal-imaging-study
#3
Nripen Gaur, Pallavi Singh, Rohan Chawla, Brijesh Takkar
A 19-year-old man presented with unilateral sudden onset vision loss following an intra-articular triamcinolone injection in the right temporomandibular joint. At fundus examination emboli of triamcinolone were visible in multiple retinal arteries. Choroidal ischaemia and occlusion of the central retinal artery and its branches were documented at fluorescein angiography. Optical coherence tomography revealed significant thickening of the inner retinal layers. Optical coherence tomography angiography clearly demonstrated an abrupt cut-off of flow in a vessel below the optic disc...
February 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28227567/a-method-to-assess-the-location-and-positional-stability-of-supra-choroidal-retinal-neuroprostheses
#4
Barry S Gow, Gregg J Suaning, Barry S Gow, Gregg J Suaning, Barry S Gow, Gregg J Suaning
Electrical stimulation of the retina is now firmly established as a means of restoration of rudimentary vision for blindness particularly that caused by retinitis pigmentosa. Of the various approaches, the novel positioning of an ultra-thin stimulating electrode array (SEA) posterior to the choroid has shown promising results. Following their implantation, reliable imaging methods are essential to establish the SEA's location relative to the optic disk and retinal vasculature. Because the opacity of the choroid precludes the use of conventional light-based fundus imaging, we developed an instrument (Wangiscope) that relies on infra-red illumination from LEDs...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225725/clinical-features-of-affected-and-undetached-fellow-eyes-in-patients-with-fevr-associated-rhegmatogenous-retinal-detachment
#5
Miner Yuan, Xiaoyan Ding, Yu Yang, Fang Liu, Jiaqing Li, Xiaoling Liang, Xiongze Zhang, Andina Hu, Zijing Li, Zongyi Zhan, Lin Lu
PURPOSE: To report the clinical characteristics of the affected and fellow eyes in patients with familial exudative vitreoretinopathy-associated rhegmatogenous retinal detachment (FEVR-RRD). METHODS: This was a retrospective observational case series. The affected and fellow eyes were given complete examinations. The age, sex, clinical features of the affected eyes, and varied abnormalities of the fellow eyes were analyzed. RESULTS: Forty-three patients with FEVR-RRD were included...
March 2017: Retina
https://www.readbyqxmd.com/read/28225724/outer-retinal-tubulation-in-retinal-dystrophies
#6
Imoro Z Braimah, Sunila Dumpala, Jay Chhablani
BACKGROUND/PURPOSE: To evaluate the occurrence and characteristics of outer retinal tubulation (ORT) in an Indian population with retinal dystrophies. METHODS: In this retrospective study, 309 eyes of 157 patients with retinal dystrophies including retinitis pigmentosa (RP, 183 eyes), Stargardt disease (STGD, 93 eyes) and Best disease (33 eyes) were reviewed. The demographic details, clinical data including visual acuity, treatment history and good quality spectral domain optical coherence tomography (SD-OCT) scans were collected...
March 2017: Retina
https://www.readbyqxmd.com/read/28225723/characterization-of-macular-choroidal-thickness-in-ischemic-and-nonischemic-diabetic-maculopathy
#7
Jay U Sheth, Anantharaman Giridhar, Bindu Rajesh, Mahesh Gopalakrishnan
PURPOSE: To evaluate changes in macular choroidal thickness in eyes with ischemic and nonischemic diabetic maculopathy. METHODS: Cross-sectional study of enhanced depth imaging optical coherence tomography of patients with diabetes. The diabetic eyes were divided into 3 groups: 1) eyes with no diabetic retinopathy (NDR); 2) those with diabetic retinopathy without macular ischemia (DR/MI-); and 3) those with diabetic retinopathy and macular ischemia (DR/MI+). RESULTS: This analysis included 261 eyes of 160 patients...
March 2017: Retina
https://www.readbyqxmd.com/read/28225373/outer-retinal-tubulation-a-case-series
#8
Leticia A Rousso, Julie A Rodman, Brad Sutton, Diana L Shechtman
PURPOSE: The advent of spectral domain optical coherence tomography has led to superb imaging capabilities in addition to enhanced visualization of the retinal layers. Such advancements have led to the identification of a variety of new retinal conditions, including outer retinal tubulations (ORTs). ORTs are ovoid hyporeflective spaces located in the outer retina. The pathogenesis is unclear but seems to involve sublethal injury to the photoreceptors leading to a compensatory reorganization of the photoreceptor layer with the neighboring ellipsoid zone resulting in a hyperreflective border surrounding a central lumen...
March 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28224562/solitary-choroidal-metastasis-from-gastric-adenocarcinoma-a-case-report
#9
Masanari Shimada, Susumu Amaya, Hiroaki Sugita, Yuichiro Furutani, Yoshinori Munemoto, Takeshi Mitsui, Toshiro Tanahashi, Yuzo Kikuchi
BACKGROUND: Metastatic choroidal carcinomas that originated from the gastrointestinal tract are extremely rare. We report a case of suspected solitary choroidal metastasis from gastric adenocarcinoma. CASE PRESENTATION: The patient was a 60-year-old man who had undergone laparoscopic distal gastrectomy with D1+ lymphadenecetomy for gastric cancer. The clinical stage was T1bN0M0 (TNM classification), but the pathological stage was T4aN0M0 beyond expectation. Adjuvant chemotherapy with oral Tegafur, Gimeracil, Oteracil potassium (TS-1(®)) was initiated...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28223776/idiopathic-polypoidal-choroidal-vasculopathy-in-thai-patients-with-clinical-and-angiographic-choroidal-neovascularization
#10
Chavakij Bhoomibunchoo, Yosanan Yospaiboon, Somanus Thoongsuwan, Duangnate Rojanaporn, Nawat Watanachai, Pichai Jirarattanasopa, Nattapon Wongcumchang, Atchara Amphornphruet, Sritatath Vongkulsiri, Eakkachai Arayangkoon
OBJECTIVE: This study aimed to study the prevalence and characteristics of idiopathic polypoidal choroidal vasculopathy (IPCV) in Thai patients with clinical and angiographic choroidal neovascularization (CNV). PATIENTS AND METHODS: A consecutive case study of 140 patients presenting with CNV was conducted in nine large referral eye centers throughout Thailand. The demographic data, fundus photographs, fundus fluorescein angiography and indocyanine green angiography of the patients were analyzed...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28221259/retinal-metastasis-from-squamous-cell-carcinoma-of-the-lung-a-case-presentation
#11
Ozgur Yalcinbayir, Oner Gelisken, Feyza Sen, Sefa Yasar, Foad Alizadegan
BACKGROUND/PURPOSE: To present a case with retinal metastasis from squamous cell carcinoma of the lung. METHODS: Case report. RESULTS: A 54-year-old man presented with blurry vision in his left eye. His medical history was significant for Stage IV squamous lung carcinoma. He was undergoing chemotherapy and had a known metastasis. He had a slightly elevated whitish lesion associated with retinal hemorrhages in the left posterior pole. Optical coherence tomography showed a full-thickness retinal mass...
February 17, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28221254/long-term-remission-of-neovascular-age-related-macular-degeneration-with-as-needed-anti-vascular-endothelial-growth-factor-therapy
#12
Ilkay Kilic Muftuoglu, Mostafa Alam, Qi Sheng You, Raouf Gaber, Hema L Ramkumar, Nadia Mendoza, Amit Meshi, William R Freeman
PURPOSE: To determine the presenting characteristics of patients with neovascular age-related macular degeneration with long-term remission (LTR), which was defined as the absence of intraretinal/subretinal fluid, or hemorrhage, and absence of leakage on fluorescein angiography for longer than 6 months while on as-needed antivascular endothelial growth factor treatment. METHODS: The presenting characteristics of patients with LTR were compared with a control group including 32 eyes of 28 age-, gender-, and ethnicity-matched patients who did not achieve LTR...
February 17, 2017: Retina
https://www.readbyqxmd.com/read/28220790/in-vivo-genome-editing-with-a-small-cas9-orthologue-derived-from-campylobacter-jejuni
#13
Eunji Kim, Taeyoung Koo, Sung Wook Park, Daesik Kim, Kyoungmi Kim, Hee-Yeon Cho, Dong Woo Song, Kyu Jun Lee, Min Hee Jung, Seokjoong Kim, Jin Hyoung Kim, Jeong Hun Kim, Jin-Soo Kim
Several CRISPR-Cas9 orthologues have been used for genome editing. Here, we present the smallest Cas9 orthologue characterized to date, derived from Campylobacter jejuni (CjCas9), for efficient genome editing in vivo. After determining protospacer-adjacent motif (PAM) sequences and optimizing single-guide RNA (sgRNA) length, we package the CjCas9 gene, its sgRNA sequence, and a marker gene in an all-in-one adeno-associated virus (AAV) vector and produce the resulting virus at a high titer. CjCas9 is highly specific, cleaving only a limited number of sites in the human or mouse genome...
February 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28219789/acetazolamide-lowers-intracranial-pressure-and-modulates-the-cerebrospinal-fluid-secretion-pathway-in-healthy-rats
#14
Maria Uldall, Hannah Botfield, Inger Jansen-Olesen, Alexandra Sinclair, Rigmor Jensen
Acetazolamide is one of the most widely used drugs for lowering intracranial pressure (ICP) and is believed to reduce cerebrospinal fluid (CSF) secretion via its action on the choroid plexus (CP). In the CP the main driving force for CSF secretion is primarily active transport of Na(+) ions facilitated by the Na/K ATPase. Transmembrane water channels, known as aquaporins (AQP), are also present in the CP and play an important role in the movement of water. In the present study, we investigated the effect of a single dose acetazolamide on the activity of the Na/K ATPase and ICP...
February 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28218368/intravitreal-dexamethasone-implant-ozurdex%C3%A2-for-exudative-retinal-detachment-after-proton-beam-therapy-for-choroidal-melanoma
#15
Ariane Malclès, Anh-Minh Nguyen, Thibaud Mathis, Jean-Daniel Grange, Laurent Kodjikian
PURPOSE: To evaluate the efficacy and safety of intravitreal 0.7-mg dexamethasone implant (DEX-I) (Ozurdex®) in the treatment of extensive exudative retinal detachment (RD) associated with uveal melanoma treated using proton beam therapy (PBT). METHODS: Data from 10 patients with exudative RD after PBT treated with intravitreal injection of 0.7-mg DEX-I were reviewed retrospectively. The main outcome measures were resolution of exudative RD, visual acuity, and safety profile...
February 8, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28218367/author-s-reply-to-comments-to-clinical-experience-of-switching-anti-vegf-therapy-from-ranimizumab-to-aflibercept-in-age-related-choroidal-neovascularization
#16
George Kampougeris
No abstract text is available yet for this article.
February 13, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28214102/vitreomacular-adhesion-and-the-risk-of-neovascular-age-related-macular-degeneration
#17
Emilia Maggio, Antonio Polito, Massimo Guerriero, Guido Prigione, Barbara Parolini, Grazia Pertile
PURPOSE: To assess the prevalence of vitreomacular adhesion (VMA) in consecutive naïve eyes diagnosed with exudative age-related macular degeneration (AMD) in comparison with eyes with nonexudative AMD and age-matched controls, and to evaluate prospectively the incidence of vitreomacular interface changes over time and their influence on choroidal neovascularization (CNV) development. DESIGN: Retrospective cross-sectional analysis and longitudinal cohort study conducted at Sacrocuore Hospital, Negrar, Verona, Italy...
February 14, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28213274/differentially-cleaving-peptides-as-a-strategy-for-controlled-drug-release-in-human-retinal-pigment-epithelial-cells
#18
Madhushree Bhattacharya, Sanjay Sarkhel, Jonne Peltoniemi, Robert Broadbridge, Marjo Tuomainen, Seppo Auriola, Arto Urtti
Currently, drug delivery to the posterior eye segment relies on intravitreal injections of therapeutics. This approach requires frequent injections and does not guarantee drug delivery to intracellular targets. Controlled release systems and nanoparticles are being investigated to mitigate these challenges but most of these approaches lack translational success to the clinics. In our present study, we report a peptide based delivery system that utilizes enzyme assisted cleavable linkers to release conjugated cargo within the retinal pigment epithelial (RPE) cells...
February 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28212663/isolation-of-primary-microglia-from-the-human-post-mortem-brain-effects-of-ante-and-post-mortem-variables
#19
Mark R Mizee, Suzanne S M Miedema, Marlijn van der Poel, Adelia, Karianne G Schuurman, Miriam E van Strien, Jeroen Melief, Joost Smolders, Debbie A Hendrickx, Kirstin M Heutinck, Jörg Hamann, Inge Huitinga
Microglia are key players in the central nervous system in health and disease. Much pioneering research on microglia function has been carried out in vivo with the use of genetic animal models. However, to fully understand the role of microglia in neurological and psychiatric disorders, it is crucial to study primary human microglia from brain donors. We have developed a rapid procedure for the isolation of pure human microglia from autopsy tissue using density gradient centrifugation followed by CD11b-specific cell selection...
February 17, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28211879/evaluation-of-choroidal-tumors-with-optical-coherence-tomography-enhanced-depth-imaging-and-oct-angiography-features
#20
G Cennamo, M R Romano, M A Breve, N Velotti, M Reibaldi, G de Crecchio, G Cennamo
AimTo describe the vascular features of choroidal tumors using enhanced depth imaging (EDI), optical coherence tomography (OCT), and OCT-angiography.MethodsIn this prospective study, we evaluated 116 Caucasian patients with choroidal tumors (60 eyes with choroidal nevi, 40 with choroidal melanoma, 6 with choroidal hemangioma, 2 with optic disc melanocytoma, 6 with choroidal osteoma, and 2 with retinal metastases). Patients underwent a complete ophthalmic examination including bulbar echography, EDI-OCT, OCT-angiography, and multicolor imaging...
February 17, 2017: Eye
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