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https://www.readbyqxmd.com/read/27911488/hepatocellular-carcinoma-as-an-emerging-morbidity-in-the-thalassemia-syndromes-a-comprehensive-review
#1
REVIEW
Hassan M Moukhadder, Racha Halawi, Maria Domenica Cappellini, Ali T Taher
The incidence of hepatocellular carcinoma (HCC) in patients with thalassemia is on the rise. The 2 well recognized HCC risk factors in thalassemia are iron overload and chronic viral infection with hepatitis C. The carcinogenicity of iron is related to its induction of oxidative damage, which results in genotoxicity, and to immunologic dysregulation, which attenuates cancer immune surveillance. Chronic hepatitis B and C infections lead to necroinflammation, which can prompt progression to HCC, but an independent role of hepatitis B virus in hepatic carcinogenesis among patients with thalassemia has not been demonstrated...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27911453/addressing-long-term-sickness-absence-moving-beyond-disease-illness-and-work-related-factors-for-effective-prevention
#2
EDITORIAL
Ludovic Gpm van Amelsvoort, Nicole Wh Jansen, IJmert Kant
No abstract text is available yet for this article.
December 2, 2016: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/27911450/uveal-melanoma-relatively-rare-but-deadly-cancer
#3
REVIEW
S Kaliki, C L Shields
Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. Tumors are located either in iris (4%), ciliary body (6%), or choroid (90%). The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27911398/evaluation-of-bioenergetic-function-in-cerebral-vascular-endothelial-cells
#4
Stephanie L Rellick, Heng Hu, James W Simpkins, Xuefang Ren
The integrity of the blood-brain-barrier (BBB) is critical to prevent brain injury. Cerebral vascular endothelial (CVE) cells are one of the cell types that comprise the BBB; these cells have a very high-energy demand, which requires optimal mitochondrial function. In the case of disease or injury, the mitochondrial function in these cells can be altered, resulting in disease or the opening of the BBB. In this manuscript, we introduce a method to measure mitochondrial function in CVE cells by using whole, intact cells and a bioanalyzer...
November 19, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911391/a-murine-model-of-group-b-streptococcus-vaginal-colonization
#5
Kathryn A Patras, Kelly S Doran
Streptococcus agalactiae (group B Streptococcus, GBS), is a Gram-positive, asymptomatic colonizer of the human gastrointestinal tract and vaginal tract of 10 - 30% of adults. In immune-compromised individuals, including neonates, pregnant women, and the elderly, GBS may switch to an invasive pathogen causing sepsis, arthritis, pneumonia, and meningitis. Because GBS is a leading bacterial pathogen of neonates, current prophylaxis is comprised of late gestation screening for GBS vaginal colonization and subsequent peripartum antibiotic treatment of GBS-positive mothers...
November 16, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911385/application-of-impermeable-barriers-combined-with-candidate-factor-soaked-beads-to-study-inductive-signals-in-the-chick
#6
Susan Wilde, Malcolm P Logan
The chick embryo provides a superb vertebrate model that can be used to dissect developmental questions in a direct way. Its accessibility and robustness following surgical intervention are key experimental strengths. Mica plates were the first barriers used to prevent chick limb bud initiation(1). Protocols that use aluminum foil as an impermeable barrier to wing bud or leg bud induction and or initiation are described. We combine this technique with bead placement lateral to the barrier to exogenously supply candidate endogenous factors that have been blocked by the barrier...
November 17, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911382/a-simple-mechanical-procedure-to-create-limbal-stem-cell-deficiency-in-mouse
#7
Neda Afsharkhamseh, Elham Ghahari, Medi Eslani, Ali R Djalilian
Limbal stem cell deficiency (LSCD) is a state of malfunction or loss of limbal epithelial stem cells, after which the corneal epithelium is replaced with conjunctiva. Patients suffer from recurrent corneal defects, pain, inflammation, and loss of vision. Previously, a murine model of LSCD was described and compared to two other models. The goal was to produce a consistent mouse model of LSCD that both mimics the phenotype in humans and lasts long enough to make it possible to study the disease pathophysiology and to evaluate new treatments...
November 17, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911371/development-of-stem-cell-derived-antigen-specific-regulatory-t-cells-against-autoimmunity
#8
Mohammad Haque, Kristin Fino, Praneet Sandhu, Jianxun Song
Autoimmune diseases arise due to the loss of immunological self-tolerance. Regulatory T cells (Tregs) are important mediators of immunologic self-tolerance. Tregs represent about 5 - 10% of the mature CD4(+) T cell subpopulation in mice and humans, with about 1 - 2% of those Tregs circulating in the peripheral blood. Induced pluripotent stem cells (iPSCs) can be differentiated into functional Tregs, which have a potential to be used for cell-based therapies of autoimmune diseases. Here, we present a method to develop antigen (Ag)-specific Tregs from iPSCs (i...
November 8, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911362/automated-acoustic-dispensing-for-the-serial-dilution-of-peptide-agonists-in-potency-determination-assays
#9
Jacqueline Naylor, Alessandra Rossi, Christopher Brankin, David C Hornigold
As with small molecule drug discovery, screening for peptide agonists requires the serial dilution of peptides to produce concentration-response curves. Screening peptides affords an additional layer of complexity as conventional tip-based sample handling methods expose peptides to a large surface area of plasticware, providing an increased opportunity for peptide loss via adsorption. Preventing excessive exposure to plasticware reduces peptide loss via adherence to plastics and thus minimizes inaccuracies in potency prediction, and we have previously described the benefits of non-contact acoustic dispensing for in vitro high-throughput screening of peptide agonists(1)...
November 10, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911360/development-of-a-more-sensitive-and-specific-chromogenic-agar-medium-for-the-detection-of-vibrio-parahaemolyticus-and-other-vibrio-species
#10
Marie Yeung, Trevor Thorsen
Foodborne infections in the US caused by Vibrio species have shown an upward trend. In the genus Vibrio, V. parahaemolyticus is responsible for the majority of Vibrio-associated infections. Thus, accurate differentiation among Vibrio spp. and detection of V. parahaemolyticus is critically important to ensure the safety of our food supply. Although molecular techniques are increasingly common, culture-depending methods are still routinely done and they are considered standard methods in certain circumstances...
November 8, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911335/european-cross-sectional-survey-of%C3%A2-current-care-practices-for-duchenne-muscular-dystrophy-reveals-regional-and%C3%A2-age-dependent-differences
#11
Julia Vry, Kathrin Gramsch, Sunil Rodger, Rachel Thompson, Birgit F Steffensen, Jes Rahbek, Sam Doerken, Adrian Tassoni, María de Los Angeles Beytía, Velina Guergueltcheva, Teodora Chamova, Ivailo Tournev, Anna Kostera-Pruszczyk, Anna Kaminska, Anna Lusakowska, Lenka Mrazova, Lenka Pavlovska, Jana Strenkova, Petr Vondráček, Marta Garami, Veronika Karcagi, Ágnes Herczegfalvi, Katherine Bushby, Hanns Lochmüller, Janbernd Kirschner
BACKGROUND: Publication of comprehensive clinical care guidelines for Duchenne muscular dystrophy (DMD) in 2010 was a milestone for DMD patient management. Our CARE-NMD survey investigates the neuromuscular, medical, and psychosocial care of DMD patients in Europe, and compares it to the guidelines. METHODS: A cross-sectional survey of 1677 patients contacted via the TREAT-NMD patient registries was conducted using self-report questionnaires in seven European countries...
November 29, 2016: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/27911325/autonomic-nervous-system-dysfunctions-as-a-basis-for-a-predictive-model-of-risk-of%C3%A2-neurological-disorders-in-subjects-with%C3%A2-prior-history-of-traumatic-brain-injury-implications-in-alzheimer-s-disease
#12
Lap Ho, Marc Legere, Tongbin Li, Samara Levine, Ke Hao, Breanna Valcarcel, Giulio M Pasinetti
Autonomic dysfunction is very common in patients with dementia, and its presence might also help in differential diagnosis among dementia subtypes. Various central nervous system structures affected in Alzheimer's disease (AD) are also implicated in the central autonomic nervous system (ANS) regulation. For example, deficits in central cholinergic function in AD could likely lead to autonomic dysfunction. We recently developed a simple, readily applicable evaluation for monitoring ANS disturbances in response to traumatic brain injury (TBI)...
December 1, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911321/the-effects-of-meditation-on-grey-matter-atrophy-and-neurodegeneration-a%C3%A2-systematic-review
#13
Nicole Last, Emily Tufts, Leslie E Auger
The present systematic review is based on the premise that a variety of neurodegenerative diseases are accompanied by grey matter atrophy in the brain and meditation may impact this. Given that age is a major risk factor for many of these progressive and neurodegenerative diseases and that the percentage of the population over the age of 65 is quickly increasing, there is an obvious need for prompt treatment and prevention advances in research. As there is currently no cure for Alzheimer's disease and other neurodegenerative diseases, many are seeking non-pharmacological treatment options in attempts to offset the disease-related cognitive and functional declines...
November 26, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911299/chronotropic-response-and-cognitive-function-in-a-cohort-at-risk-for%C3%A2-alzheimer-s-disease
#14
Lena L Law, Stephanie A Schultz, Elizabeth A Boots, Jean A Einerson, Ryan J Dougherty, Jennifer M Oh, Claudia E Korcarz, Dorothy F Edwards, Rebecca L Koscik, N Maritza Dowling, Catherine L Gallagher, Barbara B Bendlin, Cynthia M Carlsson, Sanjay Asthana, Bruce P Hermann, Mark A Sager, Sterling C Johnson, Dane B Cook, James H Stein, Ozioma C Okonkwo
The objective of this study was to examine the association of chronotropic response (CR) and heart rate (HR) recovery- two indices of cardiovascular function within the context of a graded exercise test- with cognitive performance in a cognitively healthy, late-middle-aged cohort at risk for Alzheimer's disease (AD). Ninety participants (age = 63.52±5.86 years; 65.6% female) from the Wisconsin Registry for Alzheimer's Prevention participated in this study. They underwent graded exercise testing and a comprehensive neuropsychological assessment that assessed the following four cognitive domains: Immediate Memory, Verbal & Learning Memory, Working Memory, and Speed & Flexibility...
December 1, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911292/physical-exercise-moderates-the%C3%A2-relationship-of-apolipoprotein-e-apoe-%C3%A2-genotype-and-dementia-risk-a%C3%A2-population-based-study
#15
Barbara Fenesi, Hanna Fang, Ana Kovacevic, Mark Oremus, Parminder Raina, Jennifer J Heisz
Genetics and lifestyle independently determine dementia risk, but the interaction is unclear. We assessed the interactive relationship of apolipoprotein E (APOE) genotype and physical exercise on dementia risk over a 5-year period in 1,646 older adults from the Canadian Study of Health and Aging who were dementia-free at baseline. Physical exercise moderated the relationship between genotype and dementia (p < 0.01). Specifically, for APOE ɛ4 non-carriers, the odds of developing dementia were higher in non-exercisers than exercisers (OR = 1...
November 29, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911283/association-between-physical-activity-and-pain-processing-in-adults-with-chronic-low-back-pain-compared-to-pain-free-controls
#16
Lindsay C Orr, Steven Z George, Corey B Simon
BACKGROUND: Pain sensitivity has been negatively associated with physical activity levels. Few studies have examined associations between experimentally induced pain sensitivity and physical activity in adults with chronic low back pain and pain-free controls. OBJECTIVE: The objective of this study was to examine associations between physical activity levels and how an individual processes pain using experimentally induced pain stimuli. METHODS: Seventy subjects (CLBP = 49; mean age = 46...
November 25, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27911278/meta-analysis-of-the-effects-of-oral-and-intravenous-dexamethasone-premedication-in-the-prevention-of-paclitaxel-induced-allergic-reactions
#17
Fu-Chao Chen, Lin-Hai Wang, Xiao-Yu Zheng, Xiu-Min Zhang, Jun Zhang, Lin-Jun Li
BACKGROUND: Dexamethasone premedication is required to prevent paclitaxel-related hypersensitivity reactions (HSRs). Oral dexamethasone (PO-D) has been considered the standard premedication regimen. However, whether intravenous dexamethasone (IV-D) is feasible for preventing paclitaxel-related HSRs is still unclear. We conducted a meta-analysis to compare these two regimens. METHODS: We performed a systematic search in the PubMed, China National Knowledge Infrastructure, and Web of Science databases for relevant articles published before June 2016...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911270/saha-and-or-mg132-reverse-the-aggressive-phenotypes-of-glioma-cells-an-in-vitro-and-vivo-study
#18
Xue-Feng Yang, Zhi-Juan Zhao, Jia-Jie Liu, Xiang-Hong Yang, Yang Gao, Shuang Zhao, Shuai Shi, Ke-Qiang Huang, Hua-Chuan Zheng
To elucidate the anti-tumor effects and molecular mechanisms of SAHA (a histone deacetylase inhibitor) and MG132 (a proteasome inhibitor) on the aggressive phenotypes of glioma cells, we treated U87 and U251 cells with SAHA or/and MG132, and detected phenotypes' assays with phenotype-related molecules examined. It was found that SAHA or/and MG132 treatment suppressed proliferation in both concentration- and time-dependent manners, inhibited energy metabolism, migration, invasion and lamellipodia formation, and induced G2 arrest and apoptosis in the glioma cells...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911269/the-matricellular-protein-cyr61-promotes-breast-cancer-lung-metastasis-by-facilitating-tumor-cell-extravasation-and-suppressing-anoikis
#19
Yu-Ting Huang, Qiang Lan, Girieca Lorusso, Nathalie Duffey, Curzio Rüegg
Matricellular proteins play multiple roles in primary tumor growth, local invasion and tumor angiogenesis. However, their contribution to metastasis and the putative mechanisms involved are less well characterized. In ER-negative human breast cancer, elevated expression levels of the matricellular protein Cysteine-rich angiogenic inducer 61 (CYR61) are associated with more aggressive progression. Here, we investigated the role of CYR61 in breast cancer lung metastasis using the triple negative human breast cancer cell lines MDA-MB-231 and SUM159...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911256/a-residue-located-at-the-junction-of-the-head-and-stalk-regions-of-measles-virus-fusion-protein-regulates-membrane-fusion-by-controlling-conformational-stability
#20
Yuto Satoh, Saeka Yonemori, Mitsuhiro Hirose, Hiroko Shogaki, Hiroshi Wakimoto, Yoshinori Kitagawa, Bin Gotoh, Tsuyoshi Shirai, Ken-Ichi Takahashi, Masae Itoh
The fusion (F) protein of measles virus (MV) performs refolding from the thermodynamically metastable prefusion form to the highly stable postfusion form via an activated unstable intermediate stage, to induce membrane fusion. Some amino acids involved in the fusion regulation cluster in the heptad repeat B (HR-B) domain of the stalk region, among which substitution of residue 465 by various amino acids revealed that fusion activity correlates well with its side chain length from the Cα (p<0.01) and van der Waals volume (p<0...
December 1, 2016: Journal of General Virology
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