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https://www.readbyqxmd.com/read/28706504/hypertrophic-olivary-degeneration-and-palatal-or-oculopalatal-tremor
#1
REVIEW
Caroline Tilikete, Virginie Desestret
Hypertrophic degeneration of the inferior olive is mainly observed in patients developing palatal tremor (PT) or oculopalatal tremor (OPT). This syndrome manifests as a synchronous tremor of the palate (PT) and/or eyes (OPT) that may also involve other muscles from the branchial arches. It is associated with hypertrophic inferior olivary degeneration that is characterized by enlarged and vacuolated neurons, increased number and size of astrocytes, severe fibrillary gliosis, and demyelination. It appears on MRI as an increased T2/FLAIR signal intensity and enlargement of the inferior olive...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28701784/familial-associations-of-colorectal-cancer-with-other-cancers
#2
Hongyao Yu, Akseli Hemminki, Kristina Sundquist, Kari Hemminki
Colorectal cancer (CRC) has a strong familial component which extends to discordant cancers (ie non-CRC tumors). This is best seen in cancer syndromes such as hereditary non-polyposis colorectal cancer (HNPCC) which predisposes to several tumor types. Population-based family studies have also found discordant associations for CRC but they have included cancers which manifest in HNPCC, and there is no convincing evidence of discordant associations beyond the known syndromes. We address familial associations of non-CRC tumors with CRC using the resources of the Swedish Family-Cancer Database and applying a powerful approach of assessing familial relative risks in families of increasing numbers of patients with discordant cancers...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700348/mechanisms-of-phosphenes-in-irradiated-patients
#3
REVIEW
Thibaud Mathis, Stephane Vignot, Cecila Leal, Jean-Pierre Caujolle, Celia Maschi, Martine Mauget-Faÿsse, Laurent Kodjikian, Stéphanie Baillif, Joel Herault, Juliette Thariat
Anomalous visual perceptions have been reported in various diseases of the retina and visual pathways or can be experienced under specific conditions in healthy individuals. Phosphenes are perceptions of light in the absence of ambient light, occurring independently of the physiological and classical photonic stimulation of the retina. They are a frequent symptom in patients irradiated in the region of the central nervous system (CNS), head and neck and the eyes. Phosphenes have historically been attributed to complex physical phenomena such as Cherenkov radiation...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28695166/ophthalmic-artery-chemosurgery-a-nursing-perspective
#4
REVIEW
Mary Elizabeth Davis, Edith Guarini, Lindsey Eibeler, Kimberly A Salvaggio
Retinoblastoma (RB) is the most common primary cancer to affect the eyes in children with approximately 350 cases/year in the United States and 8000 worldwide. Today, sadly, 50% of children with RB worldwide die from their disease. In our experience, utilization of ophthalmic artery chemosurgery (OAC) has transformed the treatment plan for patients; with over 1500 procedures performed, our survival rate exceeds 98%. It is now our standard first-line therapy for RB. OAC is a surgical outpatient procedure which delivers concentrated doses of chemotherapy directly to the tumor without the toxicities of systemic chemotherapy...
July 2017: Asia-Pacific Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28695165/neonatal-retinoblastoma
#5
REVIEW
Tero T Kivelä, Theodora Hadjistilianou
From 7% to 10% of all retinoblastomas and from 44% to 71% of familial retinoblastomas in developed countries are diagnosed in the neonatal period, usually through pre- or post-natal screening prompted by a positive family history and sometimes serendipitously during screening for retinopathy of prematurity or other reasons. In developing countries, neonatal diagnosis of retinoblastoma has been less common. Neonatal retinoblastoma generally develops from a germline mutation of RB1, the retinoblastoma gene, even when the family history is negative and is thus usually hereditary...
July 2017: Asia-Pacific Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28691803/development-of-an-activatable-fluorescent-probe-for-prostate-cancer-imaging
#6
Takao Yogo, Keitaro Umezawa, Mako Kamiya, Rumi Hino, Yasuteru Urano
Technology to visualize small prostate cancers is urgently needed because of the difficulty of discriminating prostate cancer from normal tissue with the naked eye, and a fluorescence imaging method would be advantageous. Here we describe the design and synthesis of a fluorogenic probe (Ac-KQLR-HMRG) that is activated by hepsin and matriptase (proteases overexpressed in prostate cancer). Ac-KQLR-HMRG exhibited significant turn-on fluorogenicity in the presence of hepsin (180-fold) and matriptase (80-fold), and allowed specific fluorescence imaging of various prostate cancer cell lines in vitro...
July 10, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28685998/iridociliary-cysts-masquerading-as-neoplasia-in-cats-a-morphologic-review-of-14-cases
#7
Jessica A Fragola, Richard R Dubielzig, Ellison Bentley, Leandro B C Teixeira
OBJECTIVE: To report 14 neoplasia-free feline eyes enucleated for suspected intraocular neoplasia containing only iridociliary cysts. To analyze clinical findings that may have led veterinarians to suspect neoplasia in these globes. PROCEDURES: The archives at the Comparative Ocular Pathology Laboratory of Wisconsin (COPLOW) were searched to identify neoplasia-free feline globes enucleated for suspected neoplasia. Clinical data were obtained from medical records, veterinarian surveys, and COPLOW submission forms...
July 6, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28674336/nanoparticle-based-photodynamic-therapy-current-status-and-future-application-to-improve-outcomes-of-cancer-treatment
#8
Ken-Ichi Ogawara, Kazutaka Higaki
Photodynamic therapy (PDT) is an emerging cancer treatment that uses photosensitizers (PS), along with light to activate them, resulting in oxidation of various biological components in cancer tissues. However, since most potential PS are solubilized and given as aqueous solution, PS is non-specifically distributed in the body, leading to the induction of various side effects in normal tissues that are exposed to daylight such as skin and eyes. To overcome the problem associated with non-specific in vivo disposition of PS, various approaches have been applied to develop safer dosage forms for PS with more efficient tumor delivery and lower disposition to normal tissues...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28669026/a-pilot-study-on-ocular-safety-and-efficacy-of-infliximab-as-an-antifibrotic-agent-after-experimental-glaucoma-filtration-surgery
#9
Eleni Nikita, Alexandre Moulin, Ioannis Vergados, Dimitrios Brouzas, Panagiotis G Theodossiadis
INTRODUCTION: Tumor necrosis factor-α (TNF-α) is a multifunctional, proinflammatory cytokine that mediates pleiotropic biological functions, especially inflammation and immunoregulation. We hypothesized that blocking TNF-α with a monoclonal antibody would decrease inflammation and subconjunctival scarring in an animal model of experimental filtration surgery. METHODS: In a randomized, prospective, masked-observer study, 30 New Zealand albino rabbits underwent glaucoma filtration surgery...
July 1, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28668352/the-chick-eye-in-vision-research-an-excellent-model-for-the-study-of-ocular-disease
#10
REVIEW
C Ellis Wisely, Javed A Sayed, Heather Tamez, Chris Zelinka, Mohamed H Abdel-Rahman, Andy J Fischer, Colleen M Cebulla
The domestic chicken, Gallus gallus, serves as an excellent model for the study of a wide range of ocular diseases and conditions. The purpose of this manuscript is to outline some anatomic, physiologic, and genetic features of this organism as a robust animal model for vision research, particularly for modeling human retinal disease. Advantages include a sequenced genome, a large eye, relative ease of handling and maintenance, and ready availability. Relevant similarities and differences to humans are highlighted for ocular structures as well as for general physiologic processes...
June 28, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28666523/reconstruction-techniques-of-choice-for-the-facial-cosmetic-units
#11
F Russo, M Linares, M E Iglesias, J L Martínez-Amo, F Cabo, J Tercedor, R Costa-Vieira, T Toledo-Pastrana, J M Ródenas, V Leis
BACKGROUND AND OBJECTIVES: A broad range of skin flaps can be used to repair facial surgical defects after the excision of a tumor. The aim of our study was to develop a practical guideline covering the most useful skin grafts for each of the distinct facial cosmetic units. MATERIAL AND METHODS: This was a multicenter study in which 10 dermatologists with extensive experience in reconstructive surgery chose their preferred technique for each cosmetic unit. The choice of flaps was based on personal experience, taking into account factors such as suitability of the reconstruction technique for the specific defect, the final cosmetic result, surgical difficulty, and risk of complications...
June 27, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28666022/intravitreal-itraconazole-inhibits-laser-induced-choroidal-neovascularization-in-rats
#12
Jeong Hun Bae, Ah Reum Hwang, Chan Yun Kim, Hyeong Gon Yu, Hyoung Jun Koh, Woo Ick Yang, Hae Ran Chang, Sung Chul Lee
Choroidal neovascularization (CNV) is a major cause of severe visual loss in patients with age-related macular degeneration (AMD). Recently, itraconazole has shown potent and dose-dependent inhibition of tumor-associated angiogenesis. We evaluated the anti-angiogenic effect of itraconazole in a rat model of laser-induced CNV. After laser photocoagulation in each eye to cause CNV, right eyes were administered intravitreal injections of itraconazole; left eyes received balanced salt solution (BSS) as controls...
2017: PloS One
https://www.readbyqxmd.com/read/28650215/tolerability-of-topical-tocilizumab-eyedrops-in-dogs-a-pilot-study
#13
Vatinee Y Bunya, Simone Iwabe, Ilaria Macchi, Mina Massaro-Giordano, Maxwell Pistilli, Gustavo D Aguirre
PURPOSE: The aim of this study was to examine the tolerability of topical tocilizumab eyedrops in normal dogs and to assess whether this preparation alters tear film cytokine levels or conjunctival cytokine mRNA expression. METHODS: Two percent tocilizumab eyedrops were administered to the right eyes and artificial tears to the left eyes of 10 dogs with no anterior segment pathology 3 times daily for 4 weeks. Portable slit-lamp examinations and Schirmer tear testing were performed at baseline and day 1 week 4, as well as 2 weeks after treatment (week 6)...
June 26, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28646513/long-term-outcomes-of-group-d-retinoblastoma-eyes-during-the-intravitreal-melphalan-era
#14
Jesse L Berry, Sona Shah, Mercy Bechtold, Emily Zolfaghari, Rima Jubran, Jonathan W Kim
BACKGROUND: To evaluate outcomes of Group D retinoblastoma (Rb) eyes during the intravitreal melphalan era. PROCEDURE: Retrospective chart review of patients diagnosed with Group D Rb from 2011 to 2016 was done. Overall, 76 Group D eyes of 68 patients were included; salvage therapy included systemic chemoreduction with vincristine, etoposide, and carboplatin with local consolidation, followed by intravitreal injection of melphalan for recurrent or persistent seeding...
June 24, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28643150/epigenetically-controlled-six3-expression-regulates-glioblastoma-cell-proliferation-and-invasion-alongside-modulating-the-activation-levels-of-wnt-pathway-members
#15
Baoxin Zhang, Chenfu Shen, Fengyun Ge, Tingting Ma, Zuping Zhang
Glioma is the most common primary brain tumor in adults. Six3 is a human homologue of the highly conserved sine oculis gene family and essential transcription regulatory factor in process of eye and fetal forebrain development. However, little is known about the role of Six3 in human tumorigenesis. The aim of this study is to investigate the methylation/expression of Six3 and reveal its function and action mechanism in glioma. Our results showed that Six3 was down-regulated in human glioma tissues and human glioma SHG-44, U251, SF126 and U373-MG cells compared with the normal tissues...
June 22, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28640701/primary-cns-lymphoma
#16
Christian Grommes, Lisa M DeAngelis
Primary CNS lymphoma (PCNSL) is a rare form of extranodal non-Hodgkin lymphoma that is typically confined to the brain, eyes, and cerebrospinal fluid without evidence of systemic spread. The prognosis of patients with PCNSL has improved during the last decades with the introduction of high-dose methotrexate. However, despite recent progress, results after treatment are durable in half of patients, and therapy can be associated with late neurotoxicity. PCNSL is an uncommon tumor, and only four randomized trials and one phase III trial have been completed so far, all in the first-line setting...
July 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28638429/adalimumab-responsive-refractory-sarcoidosis-following-multiple-eyebrow-tattoos-a-case-report
#17
Alireza Mirzaei, Mohamad Mehdi Joharimoghadam, Mozhdeh Zabihiyeganeh
Sarcoidosis is a granulomatous disease that can involve multiple organs including the lungs, eyes, nerves, and skin. Cosmetic tattooing can be a predisposing factor for sarcoidosis, and its incidence is likely to increase along with its popularity. A 47-year-old woman with symptoms of fever and polyarthritis along with erythema nodosum lesions on the legs, swollen eyebrows, and a history of multiple eyebrow tattooing was referred to our center. Since the signs and symptoms were positive for Löfgren's syndrome triad including erythema nodosum, bilateral hilar lymphadenopathy, and polyarthritis, a diagnosis of acute sarcoidosis was made, and treatment was started accordingly...
2017: Tanaffos
https://www.readbyqxmd.com/read/28632993/the-role-of-small-gtpases-and-epac-rap-signaling-in-the-regulation-of-the-blood-brain-and-blood-retinal-barriers
#18
Carla J Ramos, David A Antonetti
Maintenance and regulation of the vascular endothelial cell junctional complex is critical for proper barrier function of the blood-brain barrier (BBB) and the highly related blood-retinal barrier (BRB) that help maintain proper neuronal environment. Recent research has demonstrated that the junctional complex is actively maintained and can be dynamically regulated. Studies focusing on the mechanisms of barrier formation, maintenance, and barrier disruption have been of interest to understanding development of the BBB and BRB and identifying a means for therapeutic intervention for diseases ranging from brain tumors and dementia to blinding eye diseases...
June 9, 2017: Tissue Barriers
https://www.readbyqxmd.com/read/28630796/von-hippel-lindau-disease-the-importance-of-retinal-hemangioblastomas-in-diagnosis
#19
Sevinç Şahin Atik, Aslı Ece Solmaz, Zafer Öztaş, Emine Deniz Eğrilmez, Şeyda Uğurlu, Tahir Atik, Filiz Afrashi
Von Hippel-Lindau (VHL) disease is a familial cancer syndrome characterized by benign or malignant tumors which may involve more than one system. Retinal hemangioblastomas are usually the initial manifestation of VHL disease and can cause vision loss. A 32-year-old man presented to our clinic with vision loss in the left eye for 2 months. He had a history of cerebral hemangioblastoma operation. Family history showed that his mother had unilateral vision loss and died because of renal cell carcinoma. Ophthalmologic examination revealed multiple retinal hemangioblastomas in both eyes...
June 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28630054/slc45a2-a-melanoma-antigen-with-high-tumor-selectivity-and-reduced-potential-for-autoimmune-toxicity
#20
Jungsun Park, Amjad H Talukder, Seonah Lim, Kwanghee Kim, Ke Pan, Brenda Melendez, Sherille D Bradley, Kyle Jackson, Jahan S Khalili, Junmei Wang, Caitlin Creasy, Bih-Fang Pan, Scott E Woodman, Chantale Bernatchez, David Hawke, Patrick Hwu, Kyung-Mi Lee, Jason Roszik, Gregory Lizee, Cassian Yee
Cytotoxic T lymphocyte (CTL)-based immunotherapies have had remarkable success at generating objective clinical responses in patients with advanced metastatic melanoma.  Although the melanocyte differentiation antigens (MDAs) MART-1, PMEL, and tyrosinase were among the first melanoma tumor-associated antigens identified and targeted with immunotherapy, expression within normal melanocytes of the eye and inner ear can elicit serious autoimmune side effects, thus limiting their clinical potential as CTL targets...
June 19, 2017: Cancer Immunology Research
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