keyword
MENU ▼
Read by QxMD icon Read
search

visual pathology

keyword
https://www.readbyqxmd.com/read/28741694/reduced-parahippocampal-volume-and-psychosis-symptoms-in-alzheimer-s-disease
#1
Emma McLachlan, Jennifer Bousfield, Robert Howard, Suzanne Reeves
OBJECTIVE: Establishing structural imaging correlates of psychosis symptoms in Alzheimer's disease (AD) could localise pathology and target symptomatic treatment. This study investigated whether psychosis symptoms are associated with visuoperceptual or frontal networks, and whether regional brain volume differences could be linked with the paranoid (persecutory delusions) or misidentification (misidentification phenomena and/or hallucinations) subtypes. METHODS: A total of 104 patients with probable AD (AddNeuroMed; 47 psychotic, 57 non-psychotic), followed up for at least one year with structural MRI at baseline...
July 25, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28741324/-endoscopic-treatment-for-the-posterior-impingement-of-the-ankle
#2
A Cuéllar-Avaroma, M A King-Hayata, M C Martínez-de Anda, M King-Martínez, A C King-Martínez
BACKGROUND: Chronic pain on the posterior portion of the ankle is often due to posterior impingement between bony or soft tissue structures. The presence of an os trigonum or a prominent posterior apophysis of the talus can produce this impingement. The purpose of this study was to assess the outcome of hindfoot endoscopy in patients with a diagnosis of posterior ankle impingement. MATERIAL AND METHODS: We studied 24 individuals who underwent a posterior ankle endoscopic procedure during the period between 2008 and 2012, with the diagnosis of posterior ankle impingement...
January 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28740677/assessment-of-thoracic-vasculature-in-patients-with-central-bronchogenic-carcinoma-by-unenhanced-magnetic-resonance-angiography-comparison-between-2d-free-breathing-truefisp-2d-breath-hold-truefisp-and-3d-respiratory-triggered-space
#3
Lili Wang, Peng Lv, Shuohui Yang, Mengsu Zeng, Jiang Lin
BACKGROUND: Preoperative assessment of the integrity of major thoracic vessels in central bronchogenic carcinoma is vital for tumor staging and treatment planning. Contrast-enhanced CT is currently the first choice of modality for this purpose in clinical practice with limitations including exposure to ionizing radiation and the use of iodinated contrast material. MRI has been increasingly employed for the staging of lung cancer. More recently, unenhanced magnetic resonance angiography (MRA) which is totally non-invasive and contrast-free has been reported able to show thoracic vessels...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28738764/neuroprotection-by-endo-cannabinoids-in-glaucoma-and-retinal-neurodegenerative-diseases
#4
Cinzia Rapino, Daniel Tortolani, Lucia Scipioni, Mauro Maccarrone
Emerging neuroprotective strategies are being explored to preserve the retina from degeneration, that occurs in eye pathologies like glaucoma, diabetic retinopathy, age-related macular degeneration, and retinitis pigmentosa. Incidentally, neuroprotection of retina is a defending mechanism designed to prevent or delay neuronal cell death, and to maintain neural function following an initial insult, thus avoiding loss of vision. Numerous studies have investigated potential neuroprotective properties of plant-derived phytocannabinoids, as well as of their endogenous counterparts collectively termed endocannabinoids (eCBs), in several degenerative diseases of the retina...
July 24, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28738419/posterior-staphylomas-in-pathologic-myopia-imaged-by-widefield-optical-coherence-tomography
#5
Kosei Shinohara, Noriaki Shimada, Muka Moriyama, Takeshi Yoshida, Jost B Jonas, Nagahisa Yoshimura, Kyoko Ohno-Matsui
Purpose: To examine posterior staphylomas by widefield optical coherence tomography (WF-OCT) and three-dimensional magnetic resonance imaging (3D-MRI). Methods: Highly myopic patients (myopic refractive error >8.0 diopters or axial length >26.5 mm) who had previously undergone orbital 3D-MRI were examined by WF-OCT. Results: The study included 100 eyes of 57 patients with a mean age of 67.9 ± 10.7 years (range, 44-85 years) and mean axial length of 30...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28737601/new-ways-to-detect-pediatric-sickle-cell-retinopathy-a-comprehensive-review
#6
Daniel A Pahl, Nancy S Green, Monica Bhatia, Royce W S Chen
Sickle retinopathy reflects disease-related vascular injury of the eye, which can potentially result in visual loss from vitreous hemorrhage or retinal detachment. Here we review sickle retinopathy among children with sickle cell disease, describe the epidemiology, pediatric risk factors, pathophysiology, ocular findings, and treatment. Newer, more sensitive ophthalmological imaging modalities are available for retinal imaging, including ultra-widefield fluorescein angiography, spectral-domain optical coherence tomography, and optical coherence tomography angiography...
July 21, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28736474/phenotype-analysis-of-early-risk-factors-from-electronic-medical-records-improves-image-derived-diagnostic-classifiers-for-optic-nerve-pathology
#7
Shikha Chaganti, Kunal P Nabar, Katrina M Nelson, Louise A Mawn, Bennett A Landman
We examine imaging and electronic medical records (EMR) of 588 subjects over five major disease groups that affect optic nerve function. An objective evaluation of the role of imaging and EMR data in diagnosis of these conditions would improve understanding of these diseases and help in early intervention. We developed an automated image-processing pipeline that identifies the orbital structures within the human eyes from computed tomography (CT) scans, calculates structural size, and performs volume measurements...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28736470/structural-functional-relationships-between-eye-orbital-imaging-biomarkers-and-clinical-visual-assessments
#8
Xiuya Yao, Shikha Chaganti, Kunal P Nabar, Katrina Nelson, Andrew Plassard, Rob L Harrigan, Louise A Mawn, Bennett A Landman
Eye diseases and visual impairment affect millions of Americans and induce billions of dollars in annual economic burdens. Expounding upon existing knowledge of eye diseases could lead to improved treatment and disease prevention. This research investigated the relationship between structural metrics of the eye orbit and visual function measurements in a cohort of 470 patients from a retrospective study of ophthalmology records for patients (with thyroid eye disease, orbital inflammation, optic nerve edema, glaucoma, intrinsic optic nerve disease), clinical imaging, and visual function assessments...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28734961/radix-puerariae-modulates-glutamatergic-synaptic-architecture-and-potentiates-functional-synaptic-plasticity-in-primary-hippocampal-neurons
#9
Mohammad Maqueshudul Haque Bhuiyan, Md Nazmul Haque, Md Mohibbullah, Yung Kyu Kim, Il Soo Moon
ETHNOPHARMACOLOGICAL RELEVANCE: Neurologic disorders are frequently characterized by synaptic pathology, including abnormal density and morphology of dendritic spines, synapse loss, and aberrant synaptic signaling and plasticity. Therefore, to promote and/or protect synapses by the use of natural molecules capable of modulating neurodevelopmental events, such as, spinogenesis and synaptic plasticity, could offer a preventive and curative strategy for nervous disorders associated with synaptic pathology...
July 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28734946/impaired-rhodopsin-generation-in-the-rat-model-of-diabetic-retinopathy
#10
Volha V Malechka, Gennadiy Moiseyev, Yusuke Takahashi, Younghwa Shin, Jian-Xing Ma
Diabetic retinopathy is a common complication of diabetes mellitus. Diabetic patients experience functional deficits in dark adaptation, contrast sensitivity, and color perception before microvascular pathologies become apparent. Here, we evaluated early changes in neural retinal function and in retinoid metabolism in the eye in diabetes. Streptozotocin-induced diabetic rats showed decreased a-wave and b-wave amplitudes of scotopic and photopic electroretinography responses four months after diabetes induction compared to nondiabetic controls...
July 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28733725/carotid-artery-intimal-medial-thickness-and-carotid-artery-plaques-in-hypertensive-patients-with-non-arteritic-anterior-ischaemic-optic-neuropathy
#11
Wenhui Zhu, Tingting Chen, Ling Jin, Haoyu Wang, Fengjuan Yao, Congyao Wang, Qi Wang, Nathan Congdon
PURPOSE: To assess the correlation of carotid artery intimal medial thickness (C-IMT) and carotid artery plaque score (CPS) of the common carotid artery with non-arteritic anterior ischemic optic neuropathy (NAION) in hypertensive patients. METHODS: This case-control study recruited 192 subjects. Forty-eight patients had NAION with systemic hypertension, 46 had hypertension without visual complaints, and 98 were normal controls. C-IMT and common carotid arterial plaque were measured by high-resolution vascular ultrasonography...
July 22, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28732590/cost-utility-of-evaluation-for-posterior-vitreous-detachment-and-prophylaxis-of-retinal-detachment
#12
Nicolas A Yannuzzi, Jonathan S Chang, Gary C Brown, William E Smiddy
PURPOSE: To evaluate the costs and cost-utility of examination for posterior vitreous detachment (PVD) and treatment of associated pathology, and of managing various other peripheral retinal disorders to prevent retinal detachment (RD). DESIGN: A decision analysis model of cost-utility. PARTICIPANTS: There were no participants. METHODS: Published retrospective data on the natural course of PVD, retinal tears, and lattice degeneration were used to quantitate the visual benefits of examination and treatment...
July 18, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28730263/unicameral-bone-cyst-of-the-calcaneus-minimally-invasive-endoscopic-surgical-treatment-case-report
#13
Ioan Cristian Stoica, Doina Mihaela Pop, Florin Grosu
The role of arthroscopic surgery for the treatment of various orthopedic pathologies has greatly improved during the last years. Recent publications showed that benign bone lesion may benefit from this minimally invasive surgical method, in order to minimize the invasiveness and the period of immobilization and to increase visualization. Unicameral bone cysts may be adequately treated by minimally invasive endoscopic surgery. The purpose of the current paper is to present the case report of a patient with a unicameral bone cyst of the calcaneus that underwent endoscopically assisted treatment with curettage and bone grafting with allograft from a bone bank, with emphasis on the surgical technique...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729927/fatigue-and-cognition-pupillary-responses-to-problem-solving-in-early-multiple-sclerosis-patients
#14
Sigrid A de Rodez Benavent, Gro O Nygaard, Hanne F Harbo, Siren Tønnesen, Piotr Sowa, Nils I Landrø, Marte Wendel-Haga, Lars Etholm, Kristian B Nilsen, Liv Drolsum, Emilia Kerty, Elisabeth G Celius, Bruno Laeng
INTRODUCTION: In early multiple sclerosis (MS) patients, cognitive changes and fatigue are frequent and troublesome symptoms, probably related to both structural and functional brain changes. Whether there is a common cause of these symptoms in MS is unknown. In theory, an altered regulation of central neuropeptides can lead to changes in regulation of autonomic function, cognitive difficulties, and fatigue. Direct measurements of central neuropeptides are difficult to perform, but measurements of the eye pupil can be used as a reliable proxy of function...
July 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28728903/utility-of-magnetic-resonance-imaging-for-the-diagnosis-of-appendicitis-during-pregnancy-a-canadian-experience
#15
Michael Burns, Cameron J Hague, Patrick Vos, Pari Tiwari, Sam M Wiseman
PURPOSE: The objective of the study was to evaluate the performance of magnetic resonance imaging (MRI) for the diagnosis of appendicitis during pregnancy. METHODS: We conducted a retrospective review of all MRI scans performed at our institution, between 2006 and 2012, for the evaluation of suspected appendicitis in pregnant women. Details of the MRI scans performed were obtained from the radiology information system as well as details of any ultrasounds carried out for the same indication...
July 17, 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28728675/increased-striatal-dopamine-synthesis-capacity-in-gambling-addiction
#16
Ruth J van Holst, Guillaume Sescousse, Lieneke K Janssen, Marcel Janssen, Anne S Berry, William J Jagust, Roshan Cools
BACKGROUND: The hypothesis that dopamine plays an important role in the pathophysiology of pathological gambling is pervasive. However, there is little to no direct evidence for a categorical difference between pathological gamblers and healthy control subjects in terms of dopamine transmission in a drug-free state. Here we provide evidence for this hypothesis by comparing dopamine synthesis capacity in the dorsal and ventral parts of the striatum in 13 pathological gamblers and 15 healthy control subjects...
June 16, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28728185/novel-presenting-phenotype-in-a-child-with-autosomal-dominant-best-s-vitelliform-macular-dystrophy
#17
Yasmine F Abdalla, Gabriella De Salvo, Ahmad Elsahn, James E Self
Best's macular dystrophy (BMD) usually manifests with visual failure in the first or second decade of life; however, there is a large variability in expressivity of the disease, and some patients have no manifestation other than a pathological electro-oculogram (EOG). Autosomal dominant Best's vitelliform macular dystrophy (AD-BVMD) has a very specific phenotype that varies with the stage of the disease. In recent years, the authors have seen description of another clinical entity known as autosomal recessive BMD...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28727125/usefulness-of-saline-infusion-sonohysterography-and-feeding-artery-imaging-in-endometrial-polyp-diagnosis
#18
Marcin Anioł, Grażyna Dec, Katarzyna Wojda, Piotr Sieroszewski
OBJECTIVES: The aim of this study was to assess the usefulness of sonohysterography with feeding artery visualization using transvaginal sonography to diagnose endometrial polyps. MATERIAL AND METHODS: We conducted an observational study of 60 perimenopausal patients referred to the Department of Fetal Medicine and Gynaecology, Medical University of Lodz with abnormal uterine bleeding or suspicion of endometrial pathology based on sonography scan. In all 60 patients transvaginal sonography scan showed a possibility of an endometrial polyp...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28726848/patch-clamp-technique-to-characterize-ion-channels-in-enlarged-individual-endolysosomes
#19
Cheng-Chang Chen, Chunlei Cang, Stefanie Fenske, Elisabeth Butz, Yu-Kai Chao, Martin Biel, Dejian Ren, Christian Wahl-Schott, Christian Grimm
According to proteomics analyses, more than 70 different ion channels and transporters are harbored in membranes of intracellular compartments such as endosomes and lysosomes. Malfunctioning of these channels has been implicated in human diseases such as lysosomal storage disorders, neurodegenerative diseases and metabolic pathologies, as well as in the progression of certain infectious diseases. As a consequence, these channels have engendered very high interest as future drug targets. Detailed electrophysiological characterization of intracellular ion channels is lacking, mainly because standard methods to analyze plasma membrane ion channels, such as the patch-clamp technique, are not readily applicable to intracellular organelles...
August 2017: Nature Protocols
https://www.readbyqxmd.com/read/28726636/live-cell-visualization-of-gasdermin-d-driven-pyroptotic-cell-death
#20
Joseph K Rathkey, Bryan L Benson, Steven M Chirieleison, Jie Yang, Tsan S Xiao, George R Dubyak, Alex Y Huang, Derek W Abbott
Pyroptosis is a form of cell death important in defenses against pathogens, but which can also result in a potent and sometimes pathological inflammatory response. During pyroptosis, gasdermin D (GSDMD), the pore-forming effector protein, is cleaved, forms oligomers, and inserts into the membranes of the cell, resulting in rapid cell death. However, the potent cell death induction caused by GSDMD has complicated our ability to understand the biology of this protein. Studies aimed at visualizing GSDMD have relied on expression of GSDMD fragments in epithelial cell lines that naturally lack GSDMD expression and also lack the proteases necessary to cleave GSDMD...
July 18, 2017: Journal of Biological Chemistry
keyword
keyword
88576
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"