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https://www.readbyqxmd.com/read/28432590/pathological-analysis-of-the-surgical-margins-of-resected-glioblastomas-excised-using-photodynamic-visualization-with-both-5-aminolevulinic-acid-and-fluorescein-sodium
#1
Hirohito Yano, Noriyuki Nakayama, Naoyuki Ohe, Kazuhiro Miwa, Jun Shinoda, Toru Iwama
During glioma resection, 5-aminolevulinic acid (5-ALA) and fluorescein sodium (Fl-Na) are used for photodynamic tumor visualization. The objective of this study was to evaluate the pathological findings of the boundary zone between the tumor and adjacent normal brain in glioblastoma patients undergoing simultaneous double staining with 5-ALA and Fl-Na during surgery. Eight patients received 5-ALA (20 mg/kg orally) before the induction of general anesthesia, and Fl-Na (20 mg/kg) was administered intravenously before the dural incision was performed...
April 21, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28432188/magnetic-resonance-neurography-visualizes-abnormalities-in-sciatic-and-tibial-nerves-in-patients-with-type-1-diabetes-and-neuropathy
#2
Michael Vaeggemose, Mirko Pham, Steffen Ringgaard, Hatice Tankisi, Niels Ejskjaer, Sabine Heiland, Per L Poulsen, Henning Andersen
This study evaluates whether diffusion-tensor-imaging MR-Neurography (DTI-MRN), T2-relaxation-time and proton-spin-density can detect and grade neuropathic abnormalities in patients with type 1 diabetes.Forty-nine patients with type 1 diabetes (11 with severe polyneuropathy (sDPN), 13 with mild polyneuropathy (mDPN) and 25 without polyneuropathy (nDPN)) and 30 healthy controls (HC) were included. Clinical examinations, nerve-conduction-studies and vibratory-perception-thresholds determined the presence and severity of DPN...
April 21, 2017: Diabetes
https://www.readbyqxmd.com/read/28430603/tumor-heterogeneity-assessed-by-texture-analysis-on-contrast-enhanced-ct-in-lung-adenocarcinoma-association-with-pathologic-grade
#3
Ying Liu, Shichang Liu, Fangyuan Qu, Qian Li, Runfen Cheng, Zhaoxiang Ye
Objectives To investigate whether texture features on contrast-enhanced computed tomography (CECT) images of lung adenocarcinoma have association with pathologic grade.Methods A cohort of 148 patients with surgically operated adenocarcinoma was retrospectively reviewed. Fifty-four CT features of the primary lung tumor were extracted from CECT images using open-source 3D Slicer software; meanwhile, enhancement homogeneity was evaluated by two radiologists using visual assessment. Multivariate logistic regression analysis was performed to determine significant image indicator of pathologic grade...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430540/demystifying-orbital-emergencies-a-pictorial-review
#4
Viet D Nguyen, Achint K Singh, Wilson B Altmeyer, Bundhit Tantiwongkosi
Imaging of the orbit plays an important role in the workup of orbital emergencies. Orbital imaging is particularly useful in the emergency department, where clinical history and physical examination may be limited or delayed until the exclusion or treatment of more life-threatening conditions. Cross-sectional orbital imaging with multidetector computed tomography (CT) and magnetic resonance (MR) imaging is commonly performed in addition to ultrasonography. In an emergent setting, CT is the preferred modality when evaluating for intraorbital foreign bodies, fractures, or calcifications within a mass lesion...
April 21, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28428679/mini-asymmetric-radial-keratotomy-and-corneal-cross-linking-for-the-treatment-of-a-bilateral-stage-iv-keratoconus-in-a-14-year-old-child
#5
Marco Abbondanza, Gabriele Abbondanza, Valentina De Felice
AIM: To present the case of a 14-year-old boy with bilateral stage IV keratoconus, treated with a combined MARK + CXL intervention, without the need for a corneal transplantation. RESULTS: The left eye displays considerable improvements, with a follow-up of 13.5 years: Kmax is decreased by 5.53 D, Kmed is decreased by 1.95 D and thinnest pachymetry is increased by 106 µm. The right eye shows equally remarkable parameters, with a follow-up of 9.5 years: Kmax is decreased by 8...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28427198/hypoxia-activates-placental-growth-factor-expression-in-lymphatic-endothelial-cells
#6
Laura Tudisco, Augusto Orlandi, Valeria Tarallo, Sandro De Falco
Placental growth factor (PlGF), a proangiogenic member of vascular endothelial growth family, is active during pathological conditions like cancer, metastasis formation and hind limb ischemia and in wound healing. Endothelial cells express PlGF and hypoxia positively modulates in vitro its expression. To verify whether hypoxia modulates PlGF expression in different cellular contexts and in vivo, we first analyzed five human and five mouse cancer cell lines showing that in eight of them hypoxia positively modulates PlGF...
March 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427063/optical-coherence-tomography-angiography-in-diabetic-maculopathy
#7
Gabriel Coscas, Marco Lupidi, Florence Coscas
Fluorescein angiography (FA) and indocyanine green angiography have provided information about the normal retinal and choroidal anatomy, nearly comparable to histological findings. These tests have been fundamental in the evaluation of all retinal and choroidal vascular diseases and have allowed clinicians to define and diagnose several pathological conditions. FA became the "gold standard" in retinal imaging due to the capacity to visualize the retinal capillary bed and its changes, both in the macular area and in the periphery...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28424742/fret-from-single-to-multiplexed-signaling-events
#8
REVIEW
Gertrude Bunt, Fred S Wouters
Förster resonance energy transfer (FRET) is a powerful tool for the visualization of molecular signaling events such as protein activities and interactions in cells. In its different implementations, FRET microscopy has been mainly used for monitoring single events. Recently, there has been a trend of extending FRET imaging towards the simultaneous detection of multiple events and interactions. The concomitant increase in experimental complexity requires a deeper understanding of the biophysical background of FRET...
April 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28424513/super-multiplex-vibrational-imaging
#9
Lu Wei, Zhixing Chen, Lixue Shi, Rong Long, Andrew V Anzalone, Luyuan Zhang, Fanghao Hu, Rafael Yuste, Virginia W Cornish, Wei Min
The ability to visualize directly a large number of distinct molecular species inside cells is increasingly essential for understanding complex systems and processes. Even though existing methods have successfully been used to explore structure-function relationships in nervous systems, to profile RNA in situ, to reveal the heterogeneity of tumour microenvironments and to study dynamic macromolecular assembly, it remains challenging to image many species with high selectivity and sensitivity under biological conditions...
April 19, 2017: Nature
https://www.readbyqxmd.com/read/28420564/prognostic-role-of-neutrophil-to-lymphocyte-ratio-in-primary-non-muscle-invasive-bladder-cancer
#10
David D'Andrea, Marco Moschini, Kilian Gust, Mohammad Abufaraj, Mehmet Özsoy, Romain Mathieu, Francesco Soria, Alberto Briganti, Morgan Rouprêt, Pierre I Karakiewicz, Shahrokh F Shariat
INTRODUCTION: The purpose of this study was to assess the role of pretreatment neutrophil-to-lymphocyte ratio (NLR) as a predictor of clinical outcomes in patients treated with transurethral resection (TURB) for primary non-muscle-invasive bladder cancer (NMIBC). PATIENTS AND METHODS: Data from 918 patients treated with TURB for primary NMIBC were retrospectively collected. NLR was evaluated as binary variable with the cut-point of 3 based on the visual best correlation of the receiver operating curve analyses focusing on disease recurrence...
March 27, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28420392/tissue-tropisms-infection-kinetics-histologic-lesions-and-antibody-response-of-the-mr766-strain-of-zika-virus-in-a-murine-model
#11
Anna B Kawiecki, E Handly Mayton, M Fausta Dutuze, Brad A Goupil, Ingeborg M Langohr, Fabio Del Piero, Rebecca C Christofferson
BACKGROUND: The appearance of severe Zika virus (ZIKV) disease in the most recent outbreak has prompted researchers to respond through the development of tools to quickly characterize transmission and pathology. We describe here another such tool, a mouse model of ZIKV infection and pathogenesis using the MR766 strain of virus that adds to the growing body of knowledge regarding ZIKV kinetics in small animal models. METHODS: We infected mice with the MR766 strain of ZIKV to determine infection kinetics via serum viremia...
April 18, 2017: Virology Journal
https://www.readbyqxmd.com/read/28420043/-alcohol-consumption-prevalence-in-civil-servants
#12
Josep Maria Molina Aragonés, Cristina Abadia Castelló
Temporomandibular dysfunction syndrome (TMDS) includes a number of clinical conditions involving the temporomandibular joint (TMJ), the muscles involved in mastication, or both. The symptoms of TMDS include decreased mobility, masticatory muscle pain, TMJ pain, functional alteration accompanied by articular noises, myofascial pain or deviation of the mouth opening. Work with visual display terminals (VDTs) has become widespread in the past several years and the conditions associated with this type of work have been associated with the appearance of certain musculoskeletal pathologies...
April 2017: Archivos de Prevención de Riesgos Laborales
https://www.readbyqxmd.com/read/28419843/a-review-of-in-office-dynamic-image-navigation-for-extraction-of-complex-mandibular-third-molars
#13
Robert W Emery, Oxana Korj, Ravi Agarwal
PURPOSE: We performed a retrospective review of in-office removal of complex mandibular third molars with a dynamic image navigation system (DINS). MATERIALS AND METHODS: A retrospective review was conducted of cases completed from 2010 to 2014 by a single oral and maxillofacial surgeon. The average age of the patients was 47 years (range, 27 to 72 years). Extraction complexity was classified with Juodzbalys and Daugela's classification system. The included study cases had complexity scores of 9 or greater...
March 25, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28419645/diagnostic-performance-of-different-imaging-modalities-in-the-assessment-of-distant-metastasis-and-local-recurrence-of-tumor-in-patients-with-non-small-cell-lung-cancer
#14
Yoshiharu Ohno, Takeshi Yoshikawa, Yuji Kishida, Shinichiro Seki, Hisanobu Koyama, Masao Yui, Yoshimori Kassai, Kota Aoyagi, Shigeo Kaminaga, Kazuro Sugimura
PURPOSE: To compare the diagnostic performance of positron emission tomography with [18F] fluoro-2-deoxy-glucose (FDG-PET) coregistered with magnetic resonance imaging (FDG-PET/MRI), MRI with and without diffusion-weighted imaging (DWI), FDG-PET fused with computed tomography (FDG-PET/CT) with brain contrast-enhanced (CE-) MRI, and routine radiological examination for assessment of postoperative recurrence in nonsmall-cell lung cancer (NSCLC) patients. MATERIALS AND METHODS: 96 consecutive postoperative NSCLC patients (52 men, 44 women; mean age 72 years) prospectively underwent whole-body 3T MRI with and without DWI; PET/CTs and routine radiological examinations consisted of CE-brain MRI, whole-body CE-CT, and bone scintigraphy...
April 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28419330/seizure-outcomes-in-occipital-lobe-and-posterior-quadrant-epilepsy-surgery-a-systematic-review-and-meta-analysis
#15
Stephen C Harward, William C Chen, John D Rolston, Michael M Haglund, Dario J Englot
BACKGROUND: Occipital lobe epilepsy (OLE) is an uncommon but debilitating focal epilepsy syndrome with seizures often refractory to medical management. While surgical resection has proven a viable treatment, previous studies examining postoperative seizure freedom rates are limited by small sample size and patient heterogeneity, thus exhibiting significant variability in their results. OBJECTIVE: To review the medical literature on OLE so as to investigate rates and predictors of both seizure freedom and visual outcomes following surgery...
April 13, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28418338/diagnosis-of-nipple-discharge-value-of-magnetic-resonance-imaging-and-ultrasonography-in-comparison-with-ductoscopy
#16
Ravza Yılmaz, Ömer Bender, Fatma Çelik Yabul, Menduh Dursun, Mehtap Tunacı, Gülden Acunas
BACKGROUND: Pathologic nipple discharge, which is a common reason for referral to the breast imaging service, refers to spontaneous or bloody nipple discharge that arises from a single duct. The most common cause of nipple discharge is benign breast lesions, such as solitary intraductal papilloma and papillomatosis. Nevertheless, in rare cases, a malignant cause of nipple discharge can be found. AIMS: To study the diagnostic value of ultrasonography, magnetic resonance imaging, and ductoscopy in patients with pathologic nipple discharge, compare their efficacy, and investigate the importance of magnetic resonance imaging in the diagnosis of intraductal pathologies...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28418336/intracranial-lesions-in-children-and-adolescents-with-morbid-obesity
#17
Ayça Törel Ergür, Sevinç Odabaşı Güneş, Sinan Tan, Ü Ayşe Tandırcıoğlu
BACKGROUND: Intracranial lesions may affect the hypothalamo-hypophyseal axis and lead to some neuro-endocrinological dysfunctions (hyperphagia, sleep disorders and hormonal dysfunctions). There is a very limited number of studies about childhood obesity and intracranial lesions. AIMS: To evaluate the incidence of intracranial lesions and its role in clinical symptoms and aetiology in cases with morbid obesity who have been admitted to the paediatric endocrinology department with this complaint...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28416358/non-gated-high-pitch-computed-tomography-aortic-angiography-myocardial-perfusion-defects-in-patients-with-suspected-aortic-dissection
#18
Li-Ting Huang, Shih-Hung Chan, Chia-Chang Chuang, Yi-Shan Tsai
OBJECTIVES: To investigate the diagnostic value of first-pass myocardial perfusion defects visualised in non-gated high-pitch computed tomography angiography (CTA) in patients admitted to the emergency department (ED) for suspected aortic dissection. METHODS: We recruited 174 ED patients who underwent high-pitch CTA of the aorta because of suspected aortic dissection. We divided these patients into two groups (diseased and control groups) based on whether their clinical data fulfilled the third universal definition of acute myocardial infarction (AMI), specifically an increase in cardiac troponin (cTn) with at least one of the following: (a) symptoms of ischemia; (b) new ST-segment-T wave (ST-T) changes or new left bundle branch block (LBBB); (c) development of pathological Q wave; (d) new loss of viable myocardium or new regional wall motion abnormality; or (e) identification of an intracoronary thrombus by angiography or autopsy...
April 12, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28415608/collagen-type-iv-alpha-1-col4a1-and-collagen-type-xiii-alpha-1-col13a1-produced-in-cancer-cells-promote-tumor-budding-at-the-invasion-front-in-human-urothelial-carcinoma-of-the-bladder
#19
Makito Miyake, Shunta Hori, Yosuke Morizawa, Yoshihiro Tatsumi, Michihiro Toritsuka, Sayuri Ohnishi, Keiji Shimada, Hideki Furuya, Vedbar S Khadka, Youping Deng, Kenta Ohnishi, Kota Iida, Daisuke Gotoh, Yasushi Nakai, Takeshi Inoue, Satoshi Anai, Kazumasa Torimoto, Katsuya Aoki, Nobumichi Tanaka, Noboru Konishi, Kiyohide Fujimoto
Current knowledge of the molecular mechanism driving tumor budding is limited. Here, we focused on elucidating the detailed mechanism underlying tumor budding in urothelial cancer of the bladder. Invasive urothelial cancer was pathologically classified into three groups as follows: nodular, trabecular, and infiltrative (tumor budding). Pathohistological analysis of the orthotopic tumor model revealed that human urothelial cancer cell lines MGH-U3, UM-UC-14, and UM-UC-3 displayed typical nodular, trabecular, and infiltrative patterns, respectively...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414105/functional-reorganization-after-hemispherectomy-in-humans-and-animal-models-what-can-we-learn-about-the-brain-s-resilience-to-extensive-unilateral-lesions
#20
REVIEW
Luca Sebastianelli, Viviana Versace, Alexandra Taylor, Francesco Brigo, Wolfgang Nothdurfter, Leopold Saltuari, Eugen Trinka, Raffaele Nardone
Hemispherectomy (HS) is an effective surgical procedure aimed at managing otherwise intractable epilepsy in cases of diffuse unihemispheric pathologies. Neurological recovery in subjects treated with HS is not limited to seizure reduction, rather, sensory-motor and behavioral improvement is often observed. This outcome highlights the considerable capability of the brain to react to such an extensive lesion, by functionally reorganizing and rewiring the cerebral cortex, especially early in life. In this narrative review, we summarize the animal studies as well as the human neurophysiological and neuroimaging studies dealing with the reorganizational processes that occur after HS...
April 13, 2017: Brain Research Bulletin
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