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https://www.readbyqxmd.com/read/28428217/microrna-33-regulates-macrophage-autophagy-in-atherosclerosis
#1
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...
April 20, 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
#2
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
#3
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
#4
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
#5
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
https://www.readbyqxmd.com/read/28338197/predictive-value-and-modeling-analysis-of-msct-signs-in-gastrointestinal-stromal-tumors-gists-to-pathological-risk-degree
#6
J-K Wang
OBJECTIVE: By analyzing MSCT (multi-slice computed tomography) signs with different risks in gastrointestinal stromal tumors, this paper aimed to discuss the predictive value and modeling analysis of MSCT signs in GISTs (gastrointestinal stromal tumor) to pathological risk degree. PATIENTS AND METHODS: 100 cases of primary GISTs with abdominal and pelvic MSCT scan were involved in this study. All MSCT scan findings and enhanced findings were analyzed and compared among cases with different risk degree of pathology...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28320145/vision-loss-in-tuberculous-meningitis
#7
REVIEW
Ravindra Kumar Garg, Hardeep Singh Malhotra, Neeraj Kumar, Ravi Uniyal
Vision loss is a disabling complication of tuberculous meningitis. Approximately, 15% of survivors are either completely or partially blind. All structures of the visual pathway may be affected in tuberculous meningitis. Optic nerve and optic chiasma are most frequently and dominantly affected. Thick-gelatinous exudates lying over the base of brain, are the pathological hallmark of tuberculous meningitis and are responsible for almost all of its major complications, including vision loss. Strangulation of optic nerves and optic chiasma by the exudates, compression over optic chiasma by the dilated third ventricle, raised intracranial pressure, endarteritis, shunt failure, bacterial invasion of optic nerves and drug-induced optic nerve damage are important reasons that are considered responsible for vision loss...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28315265/sigma-1-receptor-and-ion-channel-dynamics-in-cancer
#8
Olivier Soriani, Raphaël Rapetti-Mauss
SigmaR1 is a multitasking chaperone protein which has mainly been studied in CNS physiological and pathophysiological processes such as pain, memory, neurodegenerative diseases (amyotrophic lateral sclerosis , Parkinson's and Alzheimer's diseases, retinal neurodegeneration ), stroke and addiction . Strikingly, G-protein and ion channels are the main client protein fami lies of this atypical chaperone and the recent advances that have been performed for the last 10 years demonstrate that SigmaR1 is principally activated following tissue injury and disease development to promote cell survival...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28289371/exosomes-origins-and-therapeutic-potential-for-neurodegenerative-disease
#9
REVIEW
Diana K Sarko, Cindy E McKinney
Exosomes, small lipid bilayer vesicles, are part of the transportable cell secretome that can be taken up by nearby recipient cells or can travel through the bloodstream to cells in distant organs. Selected cellular cytoplasm containing proteins, RNAs, and other macromolecules is packaged into secreted exosomes. This cargo has the potential to affect cellular function in either healthy or pathological ways. Exosomal content has been increasingly shown to assist in promoting pathways of neurodegeneration such as β-amyloid peptide (Aβ) accumulation forming amyloid plaques in the brains of patients with Alzheimer's disease, and pathological aggregates of proteins containing α-synuclein in Parkinson's disease transferred to the central nervous system via exosomes...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28280627/minimally-invasive-ivor-lewis-esophagectomy-for-esophageal-cancer-with-right-aortic-arch
#10
Jeremy Linson, Michael Latzko, Bestoun Ahmed, Ziad Awad
Right aortic arch (RAA) is a rare congenital vascular abnormality in which the aorta descends in the right thorax and encircles the esophagus. Historically, esophagectomy for patients for RAA is done through a left thoracotomy as exposure and mobilization of the esophagus is difficult through a right thoracotomy. A 73-year-old male was found to have an esophageal adenocarcinoma. Endoscopic ultrasound showed a T3N0 lesion in the lower third of the esophagus. PET CT demonstrated a circumferential lesion without evidence of distant disease or involved lymph nodes and a RAA which was not associated with congenital heart disease or symptoms...
February 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28273938/elemental-vs-phase-composition-of-breast-calcifications
#11
Robert Scott, Catherine Kendall, Nicholas Stone, Keith Rogers
Despite the importance of calcifications in early detection of breast cancer, and their suggested role in modulating breast cancer cell behaviour, very little detail is known about their chemical composition or how this relates to pathology. We measured the elemental composition of calcifications contained within histological sections of breast tissue biopsies, and related this to both crystallographic parameters measured previously in the same specimens, and to the histopathology report. The Ca:P ratio is of particular interest since this theoretically has potential as a non-invasive aid to diagnosis; this was found to lie in a narrow range similar to bone, with no significant difference between benign and malignant...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28269444/muscle-fiber-excitation-system
#12
Bertram N Ezenwa, Thomas Kernozek
Persons unable to exercise due to old age, immobility or medical condition may develop low bone density, decline in muscle contraction, blood pooling or clot. Due to musculoskeletal fragility caution is required in bone and muscle strengthening. Similarly, caution is required to use anticoagulant drug to prevent blood clot due to side effect, and compression devices are not as effective as drug. This paper presents a transcutaneous muscle fiber excitation system adaptable for use in seated, walking or lying position...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259264/mri-screening-in-operative-scheuermann-kyphosis-is-it-necessary
#13
Baron S Lonner, Courtney S Toombs, Michael Mechlin, Gina Ciavarra, Suken A Shah, Amer F Samdani, Paul Sponseller, Harry L Shufflebarger, Randal R Betz, Burt Yaszay, Peter O Newton
STUDY DESIGN: Patients with preoperative spine magnetic resonance imaging (MRI) studies from a prospective multicenter study of operative adolescent Scheuermann kyphosis (SK). OBJECTIVES: To investigate the usefulness of MRI screening in operative planning for SK surgeries. SUMMARY OF BACKGROUND DATA: Neural axis abnormalities in operative SK have not been previously studied with MRI screening, despite its use. METHODS: One orthopedic surgeon and two radiologists evaluated all images retrospectively...
March 2017: Spine Deformity
https://www.readbyqxmd.com/read/28258451/surgical-treatment-of-high-grade-dysplasia-and-early-esophageal-cancer
#14
Patrick J McLaren, James P Dolan
BACKGROUND: The treatment of early-stage esophageal cancer and high-grade dysplasia of the esophagus has changed significantly in recent years. Many early tumors that were traditionally treated with esophagectomy can now be resected with endoscopic therapy alone. These new endoscopic modalities can offer similar survival outcomes without the associated morbidity of a major operation. However, a number of these cases may still require surgical intervention as the best treatment option...
March 3, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28255941/identifying-environmental-and-social-factors-predisposing-to-pathological-gambling-combining-standard-logistic-regression-and-logic-learning-machine
#15
Stefano Parodi, Corrado Dosi, Antonella Zambon, Enrico Ferrari, Marco Muselli
Identifying potential risk factors for problem gambling (PG) is of primary importance for planning preventive and therapeutic interventions. We illustrate a new approach based on the combination of standard logistic regression and an innovative method of supervised data mining (Logic Learning Machine or LLM). Data were taken from a pilot cross-sectional study to identify subjects with PG behaviour, assessed by two internationally validated scales (SOGS and Lie/Bet). Information was obtained from 251 gamblers recruited in six betting establishments...
March 2, 2017: Journal of Gambling Studies
https://www.readbyqxmd.com/read/28227690/muscle-fiber-excitation-system
#16
Bertram N Ezenwa, Thomas Kernozek, Bertram N Ezenwa, Thomas Kernozek, Thomas Kernozek, Bertram N Ezenwa
Persons unable to exercise due to old age, immobility or medical condition may develop low bone density, decline in muscle contraction, blood pooling or clot. Due to musculoskeletal fragility caution is required in bone and muscle strengthening. Similarly, caution is required to use anticoagulant drug to prevent blood clot due to side effect, and compression devices are not as effective as drug. This paper presents a transcutaneous muscle fiber excitation system adaptable for use in seated, walking or lying position...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28212433/elevated-gm3-plasma-concentration-in-idiopathic-parkinson-s-disease-a-lipidomic-analysis
#17
Robin B Chan, Adler J Perotte, Bowen Zhou, Christopher Liong, Evan J Shorr, Karen S Marder, Un J Kang, Cheryl H Waters, Oren A Levy, Yimeng Xu, Hong Bin Shim, Itsik Pe'er, Gilbert Di Paolo, Roy N Alcalay
Parkinson's disease (PD) is a common neurodegenerative disease whose pathological hallmark is the accumulation of intracellular α-synuclein aggregates in Lewy bodies. Lipid metabolism dysregulation may play a significant role in PD pathogenesis; however, large plasma lipidomic studies in PD are lacking. In the current study, we analyzed the lipidomic profile of plasma obtained from 150 idiopathic PD patients and 100 controls, taken from the 'Spot' study at Columbia University Medical Center in New York. Our mass spectrometry based analytical panel consisted of 520 lipid species from 39 lipid subclasses including all major classes of glycerophospholipids, sphingolipids, glycerolipids and sterols...
2017: PloS One
https://www.readbyqxmd.com/read/28189050/h19-overexpression-induces-resistance-to-1-25-oh-2d3-by-targeting-vdr-through-mir-675-5p-in-colon-cancer-cells
#18
Shanwen Chen, Dingfang Bu, Yuanyuan Ma, Jing Zhu, Guowei Chen, Lie Sun, Shuai Zuo, Tengyu Li, Yisheng Pan, Xin Wang, Yucun Liu, Pengyuan Wang
The long noncoding (lnc) RNA H19 was involved in the tumorigenesis of many types of cancer. However, the role of H19 in the tumorigenesis of colon cancer has not been fully illustrated. Recent studies suggested a potential relationship between H19 and vitamin D receptor (VDR) signaling. Considering the pivotal role of VDR signaling in the colon epithelium both physiologically and pathologically, the correlation between H19 and VDR signaling may have an important role in the development of colon cancer. In this study, the correlation between H19 and vitamin D receptor (VDR) signaling and the underlying mechanisms in colon cancer were investigated both in vitro and in vivo...
March 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28185084/-schistosomose-urog%C3%A3-nitale-et-cancer
#19
A Berry, X Iriart, J Fillaux, J-F Magnaval
The existence of a link between urinary schistosomiasis (US) and bladder carcinoma was first suspected by C. Goebel in 1905. In 1911, A.R Ferguson, who was a professor of Pathology and Microbiology at the Faculty of Medicine in Cairo, published a more detailed survey from 40 autopsies, and reported a likely association of bladder carcinoma with granulomas caused by US. Subsequently, published results from several studies reinforced Ferguson's hypothesis. Moreover, in most countries where US was endemic, association of high prevalence of bladder carcinoma with US had been pointed out...
February 10, 2017: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/28183529/hippocampal-thinning-linked-to-longer-tomm40-poly-t-variant-lengths-in-the-absence-of-the-apoe-%C3%AE%C2%B54-variant
#20
Alison C Burggren, Zanjbeel Mahmood, Theresa M Harrison, Prabha Siddarth, Karen J Miller, Gary W Small, David A Merrill, Susan Y Bookheimer
INTRODUCTION: The translocase of outer mitochondrial membrane 40 (TOMM40), which lies in linkage disequilibrium with apolipoprotein E (APOE), has received attention more recently as a promising gene in Alzheimer's disease (AD) risk. TOMM40 influences AD pathology through mitochondrial neurotoxicity, and the medial temporal lobe (MTL) is the most likely brain region for identifying early manifestations of AD-related morphology changes. METHODS: In this study, we examined the effects of TOMM40 using high-resolution magnetic resonance imaging in 65 healthy, older subjects with and without the APOE ε4 AD-risk variant...
February 7, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
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