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https://www.readbyqxmd.com/read/28711224/the-radioprotector-ortho-phospho-l-tyrosine-ptyr-attenuates-the-side-effects-of-fractionated-irradiation-in-retinoblastoma-mouse-models-but-also-decreases-the-local-tumour-control
#1
Alexander V Tschulakow, Klaus Dittmann, Stephan M Huber, Dominik Klumpp, Benjamin Stegen, Ulrich Schraermeyer, H Peter Rodemann, Sylvie Julien-Schraermeyer
BACKGROUND: Radiotherapy (RT) is used to treat retinoblastoma (Rb), the most frequent ocular tumour in children. Besides eradicating the tumour, RT can cause severe side effects including secondary malignancies. This study aimed to define whether the radioprotector ortho-phospho-L-tyrosine (pTyr) prevents RT-induced side effects and affects local tumour control in a xenograft and a genetic orthotopic Rb mouse model. METHODS: B6;129-Rb1tm3Tyj/J (Rb(+/-)) and Y79-Rb cell-xenografted nude mice were fractionated external beam irradiated (15 fractions of 5Gy 6MV photons during 3weeks) with or without pTyr pre-treatment (100mg/kg BW, 16h prior to each irradiation)...
July 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28710216/lag-time-for-retinoblastoma-in-the-uk-revisited-a-retrospective-analysis
#2
Marcus Posner, Adil Jaulim, Marina Vasalaki, Khadija Rantell, Mandeep S Sagoo, M Ashwin Reddy
OBJECTIVES: To explore current delays in diagnosis of retinoblastoma (Rb) and effect on outcome with comparison to a study from the 1990s. SETTING: Primary, secondary, tertiary care: majority from South of England. PARTICIPANTS: A retrospective analysis of 93 new referrals of sporadic (non-familial) Rb to a specialist Rb unit in London, UK from January 2006 to February 2014. PRIMARY AND SECONDARY OUTCOMES: International Intraocular Retinoblastoma Classification, lag times including parental delay and healthcare professional delay, patients requiring enucleation and requirement of adjuvant chemotherapy postenucleation (high-risk Rb)...
July 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28705204/delay-along-the-care-seeking-journey-of-patients-with-ocular-surface-squamous-neoplasia-in-kenya
#3
Stephen Gichuhi, Joy Kabiru, Alain M'bongo Zindamoyen, Hillary Rono, Ernest Ollando, Joseph Wachira, Rhoda Munene, Timothy Onyuma, Mandeep S Sagoo, David Macleod, Helen A Weiss, Matthew J Burton
BACKGROUND: In Africa, accessing eye health services is a major challenge. Ocular surface squamous neoplasia (OSSN) is a substantial ocular health problem in Africa related to solar UV light exposure and HIV infection among other risk factors. The disease causes visual loss and even death in advanced cases. This study was conducted to assess referral pathway and treatment delay for patients with OSSN in Kenya. METHODS: Adults with conjunctival lesions presenting to four eye centres were asked about their occupations, when they noticed the growth, health facilities visited in seeking care, cost of consultation, surgery, medicines and histopathology and dates at each step...
July 14, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28689166/ocular-surface-cytokine-profile-in-chronic-stevens-johnson-syndrome-and-its-response-to-mucous-membrane-grafting-for-lid-margin-keratinisation
#4
Srividya Gurumurthy, Geetha Iyer, Bhaskar Srinivasan, Shweta Agarwal, Narayanasamy Angayarkanni
BACKGROUND: To study the tear cytokine and the conjunctival and oral mucosal marker profile in chronic ocular Stevens-Johnson syndrome (SJS) and their alteration following mucous membrane grafting (MMG) for lid margin keratinisation (LMK). METHODS: In a 1-year prospective study, SJS cases (n=25) and age-matched/sex-matched healthy controls (n=25) were recruited. Tear specimen (Schirmer's strip), conjunctival and oral mucosal imprints were collected from controls and SJS cases pre-MMG and post-MMG (at first follow-up, n=17)...
July 8, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28661562/predictors-of-visual-outcome-in-patients-operated-for-craniopharyngioma-a-danish-national-study
#5
Mads Forslund Jacobsen, Ann Sofia Skou Thomsen, Daniella Bach-Holm, Ghazaleh Doroudian, Kamilla Rothe Nissen, Kåre Fugleholm, Lars Poulsgaard, Volkert Siersma, Steffen Heegaard
PURPOSE: Craniopharyngioma often causes visual loss due to the close relation to the anterior visual pathways. This study investigates the incidence and predictors of visual outcomes in patients with craniopharyngioma. METHODS: Data from sixty-six patients who underwent surgery for craniopharyngioma from 2009 to 2013 in Denmark were reviewed. Primary outcomes were visual acuity (VA) and visual field (VF) defects from pre-and postoperative visits. Secondary outcomes were optic nerve atrophy (OA) and papilledema...
June 29, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28659391/primary-enucleation-for-group-d-retinoblastoma-in-the-era-of-systemic-and-targeted-chemotherapy-the-price-of-retaining-an-eye
#6
Ido D Fabian, Andrew W Stacey, Kenneth C Johnson, Tanzina Chowdhury, Catriona Duncan, M Ashwin Reddy, Mandeep S Sagoo
BACKGROUND: Chemotherapy is increasingly used as primary treatment for group D retinoblastoma, whereas primary enucleation is considered to have a diminishing role. This study aimed to compare the management course, including number of examinations under anaesthesia (EUAs), of group D patients treated by enucleation versus chemotherapy. METHODS: A retrospective analysis of 92 group D patients, of which 40 (37 unilateral) underwent primary enucleation and 52 (17 unilateral) were treated with intravenous chemotherapy...
June 28, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28658846/concomitant-presence-of-carcinoma-of-breast-in-a-patient-with-early-onset-cataract-first-case-report-of-a-potential-association
#7
Shahbaz Habib Faridi, Kaushal Deep Singh, Mehershree Lodhi
A recent nation-wide population based retrospective cohort study from Taiwan in 2014 suggested a propensity of developing breast cancer in young females with early-onset cataract. We report here a case of a young non-obese female who presented to us with a large lump in the right breast with skin nodules and bilateral painless progressive diminution of vision. Patient was diagnosed to be suffering from locally advanced carcinoma of right breast with axillary metastasis (Stage III B) and bilateral early-onset nuclear cataract...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658829/acute-ischaemic-stroke-as-a-manifestation-of-pituitary-apoplexy-in-a-young-lady
#8
Shaik Afsar Pasha, Laxmi Narasimhan Ranganthan, Vamsi Krishna Setty, Ramakrishna Reddy, Deepika Ananda Ponnuru
Pituitary Apoplexy (PA) is defined as a clinical syndrome comprising headache, visual deficits and altered sensorium, which can result from haemorrhage or infarction of the pituitary gland. Acute ischaemic stroke following PA is very rare. We are presenting a 35-year-old young otherwise healthy lady who presented with neuro ophthalmological and vascular symptoms on a background of PA. Imaging revealed a pituitary macro adenoma with parasellar extension with internal bleed. Cerebral angiography revealed that the mass compressed the bilateral cavernous sinuses (left more than right), resulting in obliteration of the cavernous portion of the left Internal Carotid Artery (ICA)...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28655484/-anterior-skull-base-schwannoma
#9
Miguel Esquivel-Miranda, Elier De la O Ríos, Emmanuelle Vargas-Valenciano, Eva Moreno-Medina
Schwannomas are nerve sheath tumours that originate in Schwann cells. They are usually solitary and sporadic and manifest on peripheral, spinal or cranial nerves. Intracranial schwannomas tend to manifest on the eighth cranial nerve, particularly in patients with neurofibromatosis type2. Anterior skull-base schwannomas represent less than 1% of all intracranial schwannomas. They are more frequent in young people and are typically benign. These tumours represent a diagnostic challenge due to their rarity and difficult differential diagnosis, and numerous theories have been postulated concerning their origin and development...
June 24, 2017: Neurocirugía
https://www.readbyqxmd.com/read/28651811/bilateral-juxtapapillary-retinal-capillary-haemangioma-usefulness-of-aflibercept-in-the-management-of-its-complications
#10
R Campos Polo, C Rubio Sánchez, D M García Guisado, M J Díaz Luque
CASE REPORT: A 45 year-old man with a history of adrenal phaeochromocytoma presented with a subretinal juxtapapillary haemorrhage on his left eye and a small asymptomatic vascular tumour in the contralateral eye. With the mentioned findings, the patient was diagnosed with bilateral retinal capillary haemangioma in the context of a von Hippel Lindau disease. Intravitreal aflibercept was prescribed, with a good outcome of the disease. DISCUSSION: Many treatments have been proposed for the management of juxtapapillary retinal capillary haemangioma with variable results...
June 23, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28647309/optic-nerve-metastasis-caused-by-lung-adenocarcinoma
#11
F Hernández Pardines, J C Molina Martín, L Fernández Montalvo, A Juárez Marroquí
INTRODUCTION: Isolated optic nerve metastases are extremely uncommon. Many cases are associated with involvement from locations such as the choroid, orbit, or central nervous system. Optic nerve metastases often have their origin in primary tumours of the breast, lung, and stomach, in adults. CASE REPORT: The case is presented of a 57 year-old woman with a diagnosis of lung adenocarcinoma. Her first complaint was a sudden loss of visual acuity in her right eye. The diagnosis of optic nerve metastases was made based on her history, and the results of the MRI scan...
June 21, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28631017/proton-therapy-of-iris-melanoma-with-50%C3%A2-cge-influence-of-target-volume-on-clinical-outcome
#12
Aline I Riechardt, Bettina Karle, Dino Cordini, Jens Heufelder, Volker Budach, Antonia M Joussen, Johannes Gollrad
PURPOSE: The aim of this study was to evaluate local tumour control, incidence of radiation-induced glaucoma and associated interventions of sector-based and whole anterior segment proton beam therapy (PBT) for the treatment of iris melanoma. PATIENTS AND METHODS: We retrospectively analysed the data of 77 patients with iris melanoma who underwent PBT applied as 50 CGE in four daily fractions. Of the patients, 47 received PBT with a circular-shaped collimator and 30 with a conformal sector-shaped target volume...
June 19, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28619056/ophthalmic-artery-occlusion-following-neuro-embolization-of-the-external-carotid-artery-a-case-report
#13
Ng Wei Loon, Balwant Singh Gendeh, Rozman Zakaria, Jemaima Che Hamzah, Norshamsiah Md Din
BACKGROUND: Embozene® is a new neuroembolizing microsphere used to reduce intraoperative bleeding for head and neck tumours. We report a case of iatrogenic ophthalmic artery occlusion after Embozene® embolization of the external carotid artery (ECA). CASE PRESENTATION: A 22-year-old African gentleman presented with left nasal obstruction and epistaxis for 2 years and was diagnosed with nasopharyngeal carcinoma. He subsequently underwent embolization of the maxillary branch of the left ECA using Embozene® Microspheres - 250 μm in size before endoscopic tumour excision to reduce intra-operative bleeding...
June 15, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28611640/visual-loss-from-choroidal-melanoma-mimicking-neurological-syndromes
#14
Karim Hammamji, Ehud Reich, Amit Arora, Victoria M L Cohen, Mandeep S Sagoo
Melanoma of the eye is rare, but can mimic a range of disorders. This report highlights 2 cases of choroidal melanoma with vision loss mimicking neurological diagnoses. The first patient is a 41-year-old white male with a known history of multiple sclerosis and a previous episode of optic neuritis in the right eye, who presented with a 6-month history of decreased vision in the same eye, and occasional photopsiae. He was treated with 2 courses of oral steroids for presumed recurrent optic neuritis. After a temporary improvement in his symptoms, his vision worsened, following which he had a head MRI, which revealed a solid intraocular mass...
January 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28600302/use-of-ruthenium-106-brachytherapy-for-iris-melanoma-the-scottish-experience
#15
Umiya Agraval, Manvi Sobti, Heather C Russell, David Lockington, Diana Ritchie, Paul Cauchi, Ewan G Kemp, Vikas Chadha
PURPOSE: To analyse long-term outcomes of ruthenium-106 ((106)Ru) plaque brachytherapy for the treatment of iris melanoma. METHODS: We retrospectively reviewed medical records of 19 consecutive patients with pure iris melanoma treated with (106)Ru plaque brachytherapy between 1998 and 2016 at the Scottish Ophthalmic Oncology Service, Glasgow. The iris melanoma was treated with a ruthenium plaque placed on the corneal surface to deliver a surface dose of 555 Gy. We analysed vision preservation, local tumour control, radiation-related complications, eye retention rates, symptomatic metastasis and melanoma-related mortality...
June 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28593402/clinical-presentation-and-prognostic-indicators-in-100-adults-and-children-with-neurofibromatosis-1-associated-non-optic-pathway-brain-gliomas
#16
Susan Byrne, Steve Connor, Karine Lascelles, Ata Siddiqui, Darren Hargrave, Rosalie E Ferner
Type 1 Neurofibromatosis (NF1) is a common autosomal dominant condition, with a major impact on the nervous system, eye, bone, and skin, and a predisposition to malignancy. At present it is not possible to predict clinically or on imaging, whether a brain tumour will remain indolent or undergo high-grade change. There are no consensus guidelines on the follow-up of non-optic pathway glioma (non-OPG) tumours in NF1. One hundred patients from the National NF1 Service with generalised NF1 and a diagnosis of non-OPG glioma were followed up for a median time of 63 months after glioma detection...
June 7, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28589646/focal-laser-treatment-in-addition-to-chemotherapy-for-retinoblastoma
#17
REVIEW
Ido D Fabian, Kenneth P Johnson, Andrew W Stacey, Mandeep S Sagoo, M A Reddy
BACKGROUND: Retinoblastoma is the most common primary intraocular malignancy of childhood. Systemic chemotherapy is a common treatment for intraocular retinoblastoma, and laser treatment is used as adjuvant therapy during or immediately after chemotherapy courses in selected cases. OBJECTIVES: To compare the effectiveness and safety of adding focal laser therapy to systemically-delivered chemotherapy in treating intraocular retinoblastoma. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (which contains the Cochrane Eyes and Vision Trials Register) (2016, Issue 9), MEDLINE Ovid (1946 to 20 October 2016), Embase Ovid (1980 to 20 October 2016), LILACS (Latin American and Caribbean Health Sciences Literature Database) (1982 to 20 October 2016), the ISRCTN registry (www...
June 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28588354/pax6-binds-to-promoter-sequence-elements-associated-with-immunological-surveillance-and-energy-homeostasis-in-brain-of-aging-mice
#18
Shashank Kumar Maurya, Rajnikant Mishra
BACKGROUND: Patients having mutations of Pax6 bear phenotypes that match age-associated neurological disorders. Mutations affect most cellular functions such as cell division, growth, differentiation, and cell death in brain, eyes, pituitary, pineal, and pancreas. The progressive reduction in the level of Pax6 during aging has also been observed. However, information about downstream targets of Pax6 in brain is unclear. Therefore, it is presumed that age-dependent alterations of Pax6 may also affect cascades of promoter sequence recognition in brain during aging...
May 2017: Annals of Neurosciences
https://www.readbyqxmd.com/read/28586604/orbital-involvement-in-sinonasal-diseases
#19
Zia-Us-Salam Qazi, Sarfraz Latif, Sadia Maqsood Awan
BACKGROUND: Orbital involvement in sinonasal diseases can present as proptosis, ophthalmoplegia or even as blindness due to optic nerve damage. There are a number of sinonasal diseases which can involve eyes. The purpose of this study was to enlist diagnoses of all the patients with sinonasal disease, in which orbit was also involved unilaterally or bilaterally and to analyse the management strategy and final outcome in all the cases. METHODS: Hundred consecutive patients having orbital symptoms along with sinonasal complaints that presented in ENT department of Shaikh Zayed federal postgraduate medical institute were included in our prospective study...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28585775/the-roles-of-the-pd-1-pd-l1-pathway-at-immunologically-privileged-sites
#20
Li-Ling Wang, Zhi-Hui Li, Xiao-Hui Hu, Kahinho P Muyayalo, Yong-Hong Zhang, Ai-Hua Liao
The PD-1/PD-L1 pathway plays a vital role in the maintenance of peripheral tolerance, promoting the development and function of regulatory T cells, and maintaining the quiescence of autoreactive T cells. Abnormalities in this inhibitory pathway are involved in the pathogenesis of some disorders such as tumours, autoimmune diseases, pregnancy complications, and transplantation rejection. Immune privilege represents a special immunological condition, where foreign antigens can be tolerated and do not elicit an immune response...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
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