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https://www.readbyqxmd.com/read/28607887/odontogenic-tumours-of-jaw-a-prospective-study-on-clinico-pathological-profile-and-their-management
#1
Dwaipayan Mukherjee, Chiranjib Das, Pritam Chatterjee
Odontogenic tumours are a group of heterogeneous diseases that range from hamartomatous or non-neoplastic tissue proliferations to benign neoplasms to malignant tumours with metastatic potential. They are rare, comprising about <2-3% of all oral and maxillofacial biopsy specimens. The aim of the present study was to determine the clinico-pathological presentation of this heterogeneous group of lesions and review of literature. The present study was conducted in the ENT department of a Government Medical College and Hospital, West Bengal, India, over the period of 5 years from January 2011 to December 2015...
June 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28597034/ultrasound-visualization-of-an-underestimated-structure-the-bicipital-aponeurosis
#2
M Konschake, H Stofferin, B Moriggl
PURPOSE: We established a detailed sonographic approach to the bicipital aponeurosis (BA), because different pathologies of this, sometimes underestimated, structure are associated with vascular, neural and muscular lesions; emphasizing its further implementation in routine clinical examinations. METHODS: The BA of 100 volunteers, in sitting position with the elbow lying on a suitable table, was investigated. Patients were aged between 18 and 28 with no history of distal biceps injury...
June 8, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28573375/chronic-maxillary-atelectasis-and-silent-sinus-syndrome-two-faces-of-the-same-clinical-entity
#3
Clotilde de Dorlodot, Stephanie Collet, Philippe Rombaux, Mihaela Horoi, Sergio Hassid, Philippe Eloy
Chronic maxillary atelectasis (CMA) and silent sinus syndrome (SSS) are rare clinical entities characterized by an implosion of the maxillary sinus that may or may not be associated with sinonasal symptoms, and are complicated by ipsilateral enophthalmos. The objective of this article is to discuss the definitions, physiopathology, clinical and radiographic characteristics, and surgical management of these entities. We retrospectively reviewed 18 patients (7 women, 11 men, aged 12-70 years) diagnosed and treated in the ear, nose, and throat departments of four Belgian teaching hospitals between 2000 and 2015...
June 1, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28567345/dementia-and-osteoporosis-in-a-geriatric-population-is-there-a-common-link
#4
Candice L Downey, Adam Young, Emily F Burton, Simon M Graham, Robert J Macfarlane, Eva-Maria Tsapakis, Eleftherios Tsiridis
AIM: To determine the existence of a common pathological link between dementia and osteoporosis through reviewing the current evidence base. METHODS: This paper reviews the current literature on osteoporosis and dementia in order to ascertain evidence of a common predisposing aetiology. A literature search of Ovid MED-LINE (1950 to June 2016) was conducted. The keywords "osteoporosis", "osteoporotic fracture", "dementia" and "Alzheimer's disease" (AD) were used to determine the theoretical links with the most significant evidence base behind them...
May 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28551930/-laboratory-tests-and-radiological-imaging-diagnostic-tools-that-share-information-and-can-be-functionally-integrated
#5
Michael Mayer
In spite of apparent disparity between the specialties of radiological imaging, pathology and laboratory analysis, the medical diagnostic information that these sources provide have a lot in common and can be effectively utilized by sharing quantitative and qualitative results through modern information technology processes. Informaticsbased integration of radiological imaging, digital images of anatomical and molecular pathology and clinical laboratory results enables earlier, more sensitive and precise diagnosis, resulting in the more efficient treatment of patients...
March 2017: Harefuah
https://www.readbyqxmd.com/read/28547865/re-imagining-alzheimer-s-disease-the-diminishing-importance-of-amyloid-and-a-glimpse-of-what-lies-ahead
#6
REVIEW
Kai-Hei Tse, Karl Herrup
Many have criticized the amyloid cascade hypothesis of Alzheimer's disease for its inconsistencies and failures to either accurately predict disease symptoms or guide the development of productive therapies. In addition to criticisms, however, we believe that the field would benefit from having alternative narratives and disease models that can either replace or function alongside of an amyloid-centric view of Alzheimer's. This review is an attempt to meet that need. We offer three experimentally verified amyloid-independent mechanisms, each of which plausibly contributes substantially to the aetiology of Alzheimer's disease: loss of DNA integrity, faulty cell cycle regulation, regression of myelination...
May 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28535565/ephrinb-ephb-signaling-induces-hyperalgesia-through-erk5-creb-pathway-in-rats
#7
Li-Na Yu, Li-Hong Sun, Min Wang, Lie-Ju Wang, Ying Wu, Jing Yu, Wen-Na Wang, Feng-Jiang Zhang, Xue Li, Min Yan
BACKGROUND: There are numerous studies implicating that EphB receptors and ephrinB ligands play important roles in modulating the transduction of spinal nociceptive information. EphrinB-EphB signaling may contribute to hyperalgesia via various kinds of downstream molecules, the mechanisms of which have not been completely understood. OBJECTIVE: The aim of the present study was to identify whether ephrinB-EphB signaling could contribute to hyperalgesia through ERK5/CREB pathway...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28531802/anti-inflammatory-and-antioxidant-effect-of-cerium-dioxide-nanoparticles-immobilized-on-the-surface-of-silica-nanoparticles-in-rat-experimental-pneumonia
#8
Z Serebrovska, R J Swanson, V Portnichenko, A Shysh, S Pavlovich, L Tumanovska, A Dorovskych, V Lysenko, V Tertykh, Y Bolbukh, V Dosenko
A massage with the potent counter-inflammatory material, cerium dioxide nanoparticles, is promising and the antioxidant properties of CeO2 are considered the main, if not the only, mechanism of this action. Nevertheless, the elimination of ceria nano-particles from the organism is very slow and there is a strong concern for toxic effect of ceria due to its accumulation. To overcome this problem, we engineered a combined material in which cerium nanoparticles were immobilized on the surface of silica nanoparticles (CeO2 NP), which is shown to be easily removed from an organism and could be used as carriers for nano-ceria...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28521835/adult-autoimmune-enteropathy-presenting-initially-with-acquired-acrodermatitis-enteropathica-a-case-report
#9
Erina Lie, Sarah Sung, Steven Hoseong Yang
BACKGROUND: Acrodermatitis enteropathica (AE) is a rare dermatitis secondary to zinc deficiency most commonly seen as an inherited disease in infants. In the last decade, increased number of reports have been published on the acquired form that presents in adulthood. Unlike its inherited counterpart, acquired AE (AAE) is often secondary to underlying pathologic or iatrogenic etiologies that interfere with nutritional absorption, such as inflammatory bowel disease or alcoholism. Various gastrointestinal pathologies have been associated with AAE, but there is currently no report on its association with adult autoimmune enteropathy (AIE), a rare gastrointestinal disorder commonly seen in infants, with limited cases reported in adults...
May 18, 2017: BMC Dermatology
https://www.readbyqxmd.com/read/28516343/therapeutic-dormancy-to-delay-postsurgical-glioma-recurrence-the-past-present-and-promise-of-focal-hypothermia
#10
REVIEW
Didier Wion
Surgery precedes both radiotherapy and chemotherapy as the first-line therapy for glioma. However, despite multimodal treatment, most glioma patients die from local recurrence in the resection margin. Glioma surgery is inherently lesional, and the response of brain tissue to surgery includes hemostasis, angiogenesis, reactive gliosis and inflammation. Unfortunately, these processes are also associated with tumorigenic side-effects. An increasing amount of evidence indicates that the response to a surgery-related brain injury is hijacked by residual glioma cells and participates in the local regeneration of tumor tissues at the resection margin...
May 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28510586/truncation-of-the-tar-dna-binding-protein-43-is-not-a-prerequisite-for-cytoplasmic-relocalization-and-is-suppressed-by-caspase-inhibition-and-by-introduction-of-the-a90v-sequence-variant
#11
Heike J Wobst, Louise Delsing, Nicholas J Brandon, Stephen J Moss
The RNA-binding and -processing protein TAR DNA-binding protein 43 (TDP-43) is heavily linked to the underlying causes and pathology of neurodegenerative diseases such as amyotrophic lateral sclerosis and frontotemporal lobar degeneration. In these diseases, TDP-43 is mislocalized, hyperphosphorylated, ubiquitinated, aggregated and cleaved. The importance of TDP-43 cleavage in the disease pathogenesis is still poorly understood. Here we detail the use of D-sorbitol as an exogenous stressor that causes TDP-43 cleavage in HeLa cells, resulting in a 35 kDa truncated product that accumulates in the cytoplasm within one hour of treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28489415/hepatic-steatosis-accompanies-pulmonary-alveolar-proteinosis
#12
Alan N Hunt, Anagha Malur, Tual Monfort, Pavlos Lagoudakis, Sumeet Mahajan, Anthony D Postle, Mary Jane Thomassen
Maintenance of tissue-specific organ lipid compositions characterises mammalian lipid homeostasis. Lung and liver synthesise mixed phosphatidylcholine (PC) molecular species subsequently "tailored" for function. Lungs progressively enrich disaturated PC (DSPC) directed to lamellar body (LB) surfactant stores prior to secretion. Liver accumulates polyunsaturated PC directed to VLDL assembly and secretion, or triglyceride stores. In each tissue, selective PC species enrichment mechanisms lie at the heart of effective homeostasis...
May 10, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28484229/characterizing-microglia-activation-a-spatial-statistics-approach-to-maximize-information-extraction
#13
Benjamin M Davis, Manual Salinas-Navarro, M Francesca Cordeiro, Lieve Moons, Lies De Groef
Microglia play an important role in the pathology of CNS disorders, however, there remains significant uncertainty about the neuroprotective/degenerative role of these cells due to a lack of techniques to adequately assess their complex behaviour in response to injury. Advancing microscopy techniques, transgenic lines and well-characterized molecular markers, have made histological assessment of microglia populations more accessible. However, there is a distinct lack of tools to adequately extract information from these images to fully characterise microglia behaviour...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28460204/agenesis-of-the-internal-carotid-artery-a-family-pathology
#14
F M Perla, G Carbotta, D Di Nardo, M D'Avanzo, M C Colaiacomo, C Di Biasi, L Falvo, S Carbotta, A Maturo, F Tartaglia, L Tromba
The internal carotid artery agenesis is a rare malformation disorder. We report the case of a 12-year-old boy suffering migraine, who had presented an episode featuring amaurosis fugax, spontaneously regressed. CT angiography images show hypoplasia of the left common carotid artery with loss of opacification of the left internal carotid artery consistent to agenesis. Moreover CT scans through the skull base demonstrate absence of left petrous carotid canal and an hypertrophic left middle cerebral artery originating from an aberrant artery arising from the right cavernous carotid...
January 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28458444/functional-analysis-of-the-coronary-heart-disease-risk-locus-on-chromosome-21q22
#15
Katherine E Beaney, Andrew J P Smith, Lasse Folkersen, Jutta Palmen, S Goya Wannamethee, Barbara J Jefferis, Peter Whincup, Tom R Gaunt, Juan P Casas, Yoav Ben-Shlomo, Jacqueline F Price, Meena Kumari, Andrew Wong, Ken Ong, Rebecca Hardy, Diana Kuh, Nicholas Wareham, Mika Kivimaki, Per Eriksson, Steve E Humphries, Ucleb Consortium
Background. The coronary heart disease (CHD) risk locus on 21q22 (lead SNP rs9982601) lies within a "gene desert." The aim of this study was to assess if this locus is associated with CHD risk factors and to identify the functional variant(s) and gene(s) involved. Methods. A phenome scan was performed with UCLEB Consortium data. Allele-specific protein binding was studied using electrophoretic mobility shift assays. Dual-reporter luciferase assays were used to assess the impact of genetic variation on expression...
2017: Disease Markers
https://www.readbyqxmd.com/read/28428217/microrna-33-regulates-macrophage-autophagy-in-atherosclerosis
#16
Mireille Ouimet, Hasini Ediriweera, Milessa Silva Afonso, Bhama Ramkhelawon, Ragunath Singaravelu, Xianghai Liao, Rachel C Bandler, Karishma Rahman, Edward A Fisher, Katey J Rayner, John P Pezacki, Ira Tabas, Kathryn J Moore
OBJECTIVE: Defective autophagy in macrophages leads to pathological processes that contribute to atherosclerosis, including impaired cholesterol metabolism and defective efferocytosis. Autophagy promotes the degradation of cytoplasmic components in lysosomes and plays a key role in the catabolism of stored lipids to maintain cellular homeostasis. microRNA-33 (miR-33) is a post-transcriptional regulator of genes involved in cholesterol homeostasis, yet the complete mechanisms by which miR-33 controls lipid metabolism are unknown...
June 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28397458/mapping-of-dna-hypermethylation-and-hypomethylation-induced-by-folate-deficiency-in-sporadic-colorectal-cancer-and-clinical-implication-analysis-of-hypermethylation-pattern-in-cbs-promoter
#17
Zaizhong Zhang, Yang He, Xiaohuang Tu, Sheng Huang, Zhuo Chen, Lie Wang, Jingxiang Song
BACKGROUND: Aberrant DNA methylation patterns play a major role in tumorigenesis and the effects of nutrients, especially folate in the diet, on methylation changes is of great importance in colorectal cancer (CRC). Folate deficiency would disrupt methylation patterns; however, its exact effects on DNA methylation patterns in CRC are unclear. This study was performed to gain insight into the methylation changes induced by folate deficiency and the putative role of methylation pattern diversities of related genes in the clinical outcome of CRC...
April 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28395102/percutaneous-translaminar-facet-cyst-rupture-and-epidural-access-description-of-a-novel-technique
#18
David Spinner, Moris Aner, Geet Paul, Thomas Simopoulos, Jatinder Gill
Synovial cysts of the lumbar zygapophysial joints can be treated by percutaneous injection of corticosteroids, with distension and rupture of the cyst. Some cysts can be difficult to access, particularly when they lie deep in relation to the lamina. This technical report describes a fluoroscopy-guided technique for accessing sublaminar pathology. Crucial to the safety of the technique is visualization of the ventral margin of the lamina using a contralateral oblique view, and controlling and limiting the insertion of the needle such that only its tip passes the lamina...
March 1, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28384287/genome-wide-profiling-in-oral-squamous-cell-carcinoma-identifies-a-four-genetic-marker-signature-of-prognostic-significance
#19
Vui King Vincent-Chong, Iman Salahshourifar, Kar Mun Woo, Arif Anwar, Rozaimi Razali, Ranganath Gudimella, Zainal Ariff Abdul Rahman, Siti Mazlipah Ismail, Thomas George Kallarakkal, Anand Ramanathan, Wan Mahadzir Wan Mustafa, Mannil Thomas Abraham, Keng Kiong Tay, Rosnah Binti Zain
BACKGROUND: Cancers of the oral cavity are primarily oral squamous cell carcinomas (OSCCs). Many of the OSCCs present at late stages with an exceptionally poor prognosis. A probable limitation in management of patients with OSCC lies in the insufficient knowledge pertaining to the linkage between copy number alterations in OSCC and oral tumourigenesis thereby resulting in an inability to deliver targeted therapy. OBJECTIVES: The current study aimed to identify copy number alterations (CNAs) in OSCC using array comparative genomic hybridization (array CGH) and to correlate the CNAs with clinico-pathologic parameters and clinical outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/28357160/mapping-the-internal-anatomy-of-the-lateral-brainstem-anatomical-study-with-application-to-far-lateral-approaches-to-intrinsic-brainstem-tumors
#20
Joe Iwanaga, Andre Granger, Payman Vahedi, Marios Loukas, Rod J Oskouian, Fabian N Fries, Iraj Lotfinia, Martin M Mortazavi, W Jerry Oakes, R Shane Tubbs
INTRODUCTION: Intramedullary brainstem tumors present a special challenge to the neurosurgeon. Unfortunately, there is no ideal part of the brainstem to incise for approaches to such pathology. Therefore, the present study was performed to identify what incisions on the lateral brainstem would result in the least amount of damage to eloquent tracts and nuclei. Case illustrations are also discussed. MATERIALS AND METHODS: Eight human brainstems were evaluated. Based on dissections and the use of standard atlases of brainstem anatomy, the most important deeper brainstem structures were mapped to the surface of the lateral brainstem...
February 3, 2017: Curēus
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