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https://www.readbyqxmd.com/read/28088440/intersections-of-post-transcriptional-gene-regulatory-mechanisms-with-intermediary-metabolism
#1
REVIEW
Waqar Arif, Gandhar Datar, Auinash Kalsotra
Intermediary metabolism studies have typically concentrated on four major regulatory mechanisms-substrate availability, allosteric enzyme regulation, post-translational enzyme modification, and regulated enzyme synthesis. Although transcriptional control has been a big focus, it is becoming increasingly evident that many post-transcriptional events are deeply embedded within the core regulatory circuits of enzyme synthesis/breakdown that maintain metabolic homeostasis. The prominent post-transcriptional mechanisms affecting intermediary metabolism include alternative pre-mRNA processing, mRNA stability and translation control, and the more recently discovered regulation by noncoding RNAs...
January 11, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28088339/evidence-based-management-of-systemic-sclerosis-navigating-recommendations-and-guidelines
#2
REVIEW
Russell Edward Pellar, Janet Elizabeth Pope
OBJECTIVES: Systemic sclerosis (SSc) is a rare heterogeneous connective tissue disease. Recommendations addressing the major issues in the management of SSc including screening and treatment of organ complications are needed. METHODS: The updated European League Against Rheumatism/European Scleroderma Trial and Research (EULAR/EUSTAR) and the British Society of Rheumatology (BSR) and British Health Professionals in Rheumatology (BHPR) guidelines were compared and contrasted...
December 9, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28087948/regulation-of-immunity-to-tuberculosis
#3
Susanna Brighenti, Diane J Ordway
Immunity against Mycobacterium tuberculosis requires a balance between adaptive immune responses to constrain bacterial replication and the prevention of potentially damaging immune activation. Regulatory T (Treg) cells express the transcription factor Foxp3+ and constitute an essential counterbalance of inflammatory Th1 responses and are required to maintain immune homeostasis. The first reports describing the presence of Foxp3-expressing CD4+ Treg cells in tuberculosis (TB) emerged in 2006. Different Treg cell subsets, most likely specialized for different tissues and microenvironments, have been shown to expand in both human TB and animal models of TB...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087595/is-epicardial-fat-depot-associated-with-atrial-fibrillation-a-systematic-review-and-meta-analysis
#4
Maddalena Gaeta, Francesco Bandera, Federico Tassinari, Capasso Lorenzo, Miriam Cargnelutti, Gabriele Pelissero, Alexis Elias Malavazos, Cristian Ricci
AIMS: Atrial fibrillation (AF) is the leading rhythm disorder in western countries. A direct relationship between left atrium (LA) enlargement and electromechanical remodelling has been established. A causative link between epicardial fat (EF), visceral adipose tissue deposited around the heart, and AF has been hypothesized. Several reports suggested the association between EF and the presence of AF. The aim of this study was to verify the relationship between AF and EF depot, performing a meta-analysis of observational case series studies...
January 13, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28079697/infectious-loss-of-tissue-expanders-in-breast-reconstruction-are-we-treating-the-right-organisms
#5
Gabriel M Klein, Brett T Phillips, Alexander B Dagum, Duc T Bui, Sami U Khan
BACKGROUND: Postoperative infections following tissue expander-based breast reconstruction represent a significant threat to the reconstructive process. Studies have found the incidence to be as high as 29%. There has been abundant research into the risk factors associated with these infections, although very few studies have focused on the causative organisms. The purpose of this study was to investigate the bacterial flora associated with tissue expander infections after breast reconstruction...
February 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28078092/severe-obesity-emotions-and-eating-habits-a-case-control-study
#6
M Koski, H Naukkarinen
BACKGROUND: Obesity has a multifaceted etiology that involves genetic, biological and behavioral factors, body growth, eating habits, energy expenditure and the function of adipose tissue. The present study aimed to expand upon knowledge about the relationships among obesity, emotions and eating habits in severely obese individuals using a case-control method. METHODS: The subject group consisted of 112 individuals (81 females and 31 males) receiving a permanent disability pension primarily for obesity...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28077863/what-have-human-experimental-overfeeding-studies-taught-us-about-adipose-tissue-expansion-and-susceptibility-to-obesity-and-metabolic-complications
#7
REVIEW
D J Cuthbertson, T Steele, J P Wilding, J C G Halford, J A Harrold, M Hamer, F Karpe
Overfeeding experiments, in which we impose short-term positive energy balance, help unravel the cellular, physiological and behavioural adaptations to nutrient excess. These studies mimic longer-term mismatched energy expenditure and intake. There is considerable inter-individual heterogeneity in the magnitude of weight gain when exposed to similar relative caloric excess reflecting variable activation of compensatory adaptive mechanisms. Significantly, given similar relative weight gain, individuals may be protected from/predisposed to metabolic complications (insulin resistance, dyslipidaemia, hypertension), non-alcoholic fatty liver disease and cardiovascular disease...
January 12, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28077600/ibrutinib-therapy-increases-t-cell-repertoire-diversity-in-patients-with-chronic-lymphocytic-leukemia
#8
Qingsong Yin, Mariela Sivina, Harlan Robins, Erik Yusko, Marissa Vignali, Susan O'Brien, Michael J Keating, Alessandra Ferrajoli, Zeev Estrov, Nitin Jain, William G Wierda, Jan A Burger
The Bruton's tyrosine kinase inhibitor ibrutinib is a highly effective, new targeted therapy for chronic lymphocytic leukemia (CLL) that thwarts leukemia cell survival, growth, and tissue homing. The effects of ibrutinib treatment on the T cell compartment, which is clonally expanded and thought to support the growth of malignant B cells in CLL, are not fully characterized. Using next-generation sequencing technology, we characterized the diversity of TCRβ-chains in peripheral blood T cells from 15 CLL patients before and after 1 y of ibrutinib therapy...
January 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28077400/differential-expression-of-hedgehog-and-snail-in-cutaneous-fibrosing-disorders-implications-for-targeted-inhibition
#9
Amrita Goyal, Katy R Linskey, Jonathan Kay, Lyn M Duncan, Rosalynn M Nazarian
OBJECTIVES: To examine Hedgehog signaling in cutaneous fibrosing disorders for which effective approved therapies are lacking, expand our knowledge of pathophysiology, and explore the rationale for targeted inhibition. METHODS: Stain intensity and percentage of cells staining for Sonic hedgehog (Shh), Indian hedgehog (Ihh), Patched (Ptch), glycogen synthase kinase 3 β (GSK3-β), β-catenin, and Snail were evaluated in human skin biopsy specimens of keloid, hypertrophic scar (Hscar), scleroderma, nephrogenic systemic fibrosis (NSF), scar, and normal skin using a tissue microarray...
December 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28076929/non-invasive-imaging-demonstrates-clinical-features-of-ankylosing-spondylitis-in-a-rat-adjuvant-model-a-case-study
#10
N Accart, J Dawson, F Kolbinger, I Kramer, N Beckmann
Ankylosing spondylitis is a common rheumatic disease involving both inflammatory erosive osteopenia and bony overgrowth. Main disease features are recapitulated in small rodents challenged with complete Freund's adjuvant. MRI was used to follow longitudinally in vivo changes induced in the rat spine and micro-CT as terminal assessment of bone damage. Histochemistry methods were used to validate these imaging modalities in view of preclinical drug testing and translational applications of spine imaging. Animals were examined using a 3D fat-suppressed gradient-echo sequence, following the injection of gadolinium...
November 2, 2016: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28076785/infection-programs-sustained-lymphoid-stromal-cell-responses-and-shapes-lymph-node-remodeling-upon-secondary-challenge
#11
Julia L Gregory, Anne Walter, Yannick O Alexandre, Jyh Liang Hor, Ruijie Liu, Joel Z Ma, Sapna Devi, Nobuko Tokuda, Yuji Owada, Laura K Mackay, Gordon K Smyth, William R Heath, Scott N Mueller
Lymph nodes (LNs) are constructed of intricate networks of endothelial and mesenchymal stromal cells. How these lymphoid stromal cells (LSCs) regulate lymphoid tissue remodeling and contribute to immune responses remains poorly understood. We performed a comprehensive functional and transcriptional analysis of LSC responses to skin viral infection and found that LSC subsets responded robustly, with different kinetics for distinct pathogens. Recruitment of cells to inflamed LNs induced LSC expansion, while B cells sustained stromal responses in an antigen-independent manner...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28074328/lipidpioneer-a-comprehensive-user-generated-exact-mass-template-for-lipidomics
#12
Candice Z Ulmer, Jeremy P Koelmel, Jared M Ragland, Timothy J Garrett, John A Bowden
Lipidomics, the comprehensive measurement of lipid species in a biological system, has promising potential in biomarker discovery and disease etiology elucidation. Advances in chromatographic separation, mass spectrometric techniques, and novel substrate applications continue to expand the number of lipid species observed. The total number and type of lipid species detected in a given sample are generally indicative of the sample matrix examined (e.g., serum, plasma, cells, bacteria, tissue, etc.). Current exact mass lipid libraries are static and represent the most commonly analyzed matrices...
January 10, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28074039/cd34-mesenchymal-cells-are-a-major-component-of-the-intestinal-stem-cells-niche-at-homeostasis-and-after-injury
#13
Igor Stzepourginski, Giulia Nigro, Jean-Marie Jacob, Sophie Dulauroy, Philippe J Sansonetti, Gérard Eberl, Lucie Peduto
The intestinal epithelium is continuously renewed by intestinal epithelial stem cells (IESCs) positioned at the base of each crypt. Mesenchymal-derived factors are essential to maintain IESCs; however, the cellular composition and development of such mesenchymal niche remains unclear. Here, we identify pericryptal CD34(+) Gp38(+) αSMA(-) mesenchymal cells closely associated with Lgr5(+) IESCs. We demonstrate that CD34(+) Gp38(+) cells are the major intestinal producers of the niche factors Wnt2b, Gremlin1, and R-spondin1, and are sufficient to promote maintenance of Lgr5(+) IESCs in intestinal organoids, an effect mainly mediated by Gremlin1...
January 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28070593/-morphological-investigations-of-deep-sole-ulcers-in-cattle-part-1-the-complicated-rusterholz-ulcer
#14
Susanne Gehringer, Matthias Müller, Johann Maierl
OBJECTIVE: In the context of a larger study on morphological changes of deep sole ulcers, claws with Rusterholz ulcer (RU) were investigated to describe the varied pathological changes of the RU. MATERIAL AND METHODS: Hind limbs of 55 cows displaying external signs of complicated sole ulcers were examined externally and internally. To examine the samples internally, a sagittal section was performed. Furthermore, the material was examined histologically and after bone maceration...
January 10, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28069369/spatial-and-temporal-distributions-of-hexabromocyclododecanes-in-the-vicinity-of-an-expanded-polystyrene-material-manufacturing-plant-in-tianjin-china
#15
Hongkai Zhu, Kai Zhang, Hongwen Sun, Fei Wang, Yiming Yao
To investigate the environmental fate of 3 main hexabromocyclododecane diastereoisomers (α-, β-, and γ-HBCDs), samples from various environmental media, including outdoor settled dust, soil, sediment, plant tissues (holly, cypress and pine) and marine species (shrimp, crab and fish) were obtained around an expanded polystyrene material manufacturing plant in Tianjin, China. The 3 main HBCD diastereoisomers were detected with the total concentrations ranging from 328 to 31,752 ng/g dry weight (dw), 2.91-1730 ng/g dw, 23...
January 6, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28069177/increased-expression-of-integrin-linked-kinase-during-decidualization-regulates-the-morphological-transformation-of-endometrial-stromal-cells
#16
Chih-Feng Yen, Sung Hoon Kim, Shuen-Kuei Liao, Cem Atabekoglu, Serpil Uckac, Aydin Arici, Sefa Arlier, Chyi-Long Lee, Hsin-Shih Wang, Umit A Kayisli
OBJECTIVE: To study the impact of integrin-linked kinase (ILK) in endometrial stromal cells (ESCs) during decidualization. DESIGN: Laboratory study with the use of human endometrium. SETTING: University hospital. PATIENT(S): Fertile reproductive-age women who had not received hormonal treatment for 3 months before tissue collection. INTERVENTION(S): Endometrium tissue collection, in vitro decidualization of isolated ESCs, and small interfering (si) RNA transfection...
January 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28068782/gasotransmitter-heterocellular-signaling
#17
Gopi Kolluru, Shuai Yuan, XInggui Shen, Christopher G Kevil
SIGNIFICANCE: The family of gasotransmitter molecules nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S), has emerged as important mediators of numerous cellular signal transduction and pathophysiological responses. As such, these molecules have been reported to influence a diverse array of biochemical, molecular, and cell biology events often impacting one another. Recent Advances: Discrete regulation of gasotransmitter molecule formation, movement, and reaction are critical to their biological function...
January 9, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28067715/incidence-risk-factors-clinical-impact-and-management-of-bioprosthesis-structural-valve-degeneration
#18
Nancy Côté, Philippe Pibarot, Marie-Annick Clavel
PURPOSE OF REVIEW: Structural valve deterioration is the major cause of bioprosthesis failure and is increasing over time. We present an overview of incidence, mechanisms, predictors, clinical impact, and management of bioprosthetic valve structural degeneration. RECENT FINDINGS: Early degeneration caused by calcification and destruction of connective tissue of the prosthesis is controlled by multiple mechanisms, from mechanical stress to infiltration of lipids and inflammatory cells, and activation of the immune system...
January 6, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28067182/successful-conservative-treatment-of-an-intracranial-pneumatocele-with-post-traumatic-hypoglossal-nerve-palsy-secondary-to-diffuse-temporal-bone-pneumocele-case-report-and-review-of-the-literature
#19
M A Taube, G M Potter, S K Lloyd, S R Freeman
BACKGROUND: A pneumocele occurs when an aerated cranial cavity pathologically expands; a pneumatocele occurs when air extends from an aerated cavity into adjacent soft tissues forming a secondary cavity. Both pathologies are extremely rare with relation to the mastoid. This paper describes a case of a mastoid pneumocele that caused hypoglossal nerve palsy and an intracranial pneumatocele. CASE REPORT: A 46-year-old man presented, following minor head trauma, with hypoglossal nerve palsy secondary to a fracture through the hypoglossal canal...
January 9, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28066914/cortical-hemorrhage-associated-neurological-deficits-and-tissue-damage-in-mice-are-ameliorated-by-therapeutic-treatment-with-nicotine
#20
Junpei Anan, Masanori Hijioka, Yuki Kurauchi, Akinori Hisatsune, Takahiro Seki, Hiroshi Katsuki
Intracerebral hemorrhage (ICH) is associated with diverse sets of neurological symptoms and prognosis, depending on the site of bleeding. Relative rate of hemorrhage occurring in the cerebral cortex (lobar hemorrhage) has been increasing, but there is no report on effective pharmacotherapeutic approaches for cortical hemorrhage either in preclinical or clinical studies. The present study aimed to establish an experimental model of cortical hemorrhage in mice for evaluation of effects of therapeutic drug candidates...
January 9, 2017: Journal of Neuroscience Research
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