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Metabolic OA

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https://www.readbyqxmd.com/read/29227259/hypothyroidism-a-special-comorbidity-factor-in-patients-with-osteoarthrosis-clinical-pathophysiological-and-prognostic-aspects
#1
L Voloshyna, О Doholich, I Sithinska
Objective - to study the features of the functional and morphological condition of the thyroid gland (TG) in patients with osteoarthrosis (OA), the incidence and forms of hypothyroidism and their effects on clinical manifestations, metabolic disorders and the results of the treatment of OA and comorbid processes. A complex examination involved 312 patients with OA aged 37-76 years. Methods used: anthropometric, clinical, ultrasonographic, biochemical, radioimmunological (levels of TSH, free thyroxine, antibodies to thyroid peroxidase)...
November 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29217212/ovarian-morphology-by-transabdominal-ultrasound-correlates-with-reproductive-and-metabolic-disturbance-in-adolescents-with-pcos
#2
Beth W Rackow, Heidi Vanden Brink, Lynwood Hammers, Clare A Flannery, Marla E Lujan, Tania S Burgert
PURPOSE: To determine whether ovarian morphology imaged using transabdominal ultrasonography reflects clinical and metabolic features in adolescents with polycystic ovary syndrome (PCOS). METHODS: A retrospective pilot study was conducted in 33 adolescents (12-18 years) with PCOS as defined by hyperandrogenism and irregular cycles. Adolescents underwent the following assessments at a random time during the menstrual cycle: transabdominal ultrasonography, physical examination (height, weight, and systolic and diastolic blood pressure), fasting hormonal tests (free, percent free, and total testosterone, androstenedione, follicle stimulating hormone, luteinizing hormone), and metabolic tests (including an oral glucose tolerance test, fasting and 2-hour insulin and glucose, homeostatic model assessment of insulin resistance, and whole-body insulin sensitivity index)...
December 5, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29216790/dual-therapy-appears-superior-to-monotherapy-for-low-income-individuals-with-newly-diagnosed-type-2-diabetes
#3
Elizabeth M Vaughan, Craig A Johnston, David J Hyman, Daphne C Hernandez, Vagish Hemmige, John P Foreyt
BACKGROUND: There are variable recommendations regarding initiating monotherapy or dual therapy in patients with newly diagnosed type 2 diabetes (T2D). Clear initial strategies are of particular importance in underserved settings where access to care and financial burdens are significant barriers. OBJECTIVES: To provide descriptive data of metabolic outcomes to therapy regimens for low-income individuals with newly diagnosed T2D placed on oral hypoglycemic agents (OAs)...
December 1, 2017: Journal of Primary Care & Community Health
https://www.readbyqxmd.com/read/29209449/effect-of-oleanolic-acid-on-small-intestine-morphology-and-enzymes-of-glutamine-metabolism-in-diabetic-rats
#4
Murtala Bindawa Isah, Bubuya Masola
The small intestine (SI) is the main site for food absorption and glutamine utilization hence critical in metabolic disorders that involve energy balance such as diabetes. This study investigates the effects of oleanolic acid (OA) on SI morphology and some enzymes of glutamine metabolism in male Sprague-Dawley diabetic rats. High dose STZ-induced diabetes (HDD) and low dose STZ-induced diabetes (LDD) were induced by intraperitoneal injection of 60 and 40 mg streptozotocin/kg body weight respectively. Non-diabetic and diabetic rats were treated for two weeks with OA, insulin or OA + insulin in HDD study while animals in the in LDD study were treated with OA...
2017: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/29207797/audit-of-organic-acidurias-from-a-single-centre-clinical-and-metabolic-profile-at-presentation-with-long-term-outcome
#5
Seema Pavaman Sindgikar, Krithika Damodar Shenoy, Nutan Kamath, Rathika Shenoy
Introduction: Organic Acidurias (OA) accounts between 10% and 40% of confirmed Inborn Errors of Metabolism (IEM) in India. With prompt recognition and management, better survival but adverse neurodevelopmental outcome is reported. Aim: To study the clinical and metabolic presentation, management with immediate and long term outcome of symptomatic children with confirmed OA. Materials and Methods: Hospital based study of symptomatic children diagnosed to have OA between 2003 and 2009 and the survivors followed up over next five years...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29196771/the-interrelation-of-osteoarthritis-and-diabetes-mellitus-considering-the-potential-role-of-interleukin-10-and-in-vitro-models-for-further-analysis
#6
REVIEW
Silke Schwarz, Ingo Mrosewski, Sandeep Silawal, Gundula Schulze-Tanzil
INTRODUCTION: Today, not only the existence of an interrelation between obesity/adipositas and osteoarthritis (OA) but also the association of OA and diabetes mellitus (DM) are widely recognized. Nevertheless, shared influence factors facilitating OA development in DM patients still remain speculative up until now. To supplement the analysis of clinical data, appropriate in vitro models could help to identify shared pathogenetic pathways. Informative in vitro studies could later be complemented by in vivo data obtained from suitable animal models...
December 1, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29191460/the-mitochondrial-2-oxoadipate-and-2-oxoglutarate-dehydrogenase-complexes-share-their-e2-and-e3-components-for-their-function-and-both-generate-reactive-oxygen-species
#7
Natalia S Nemeria, Gary Gerfen, Pradeep Reddy Nareddy, Luying Yang, Xu Zhang, Michal Szostak, Frank Jordan
Herein are reported unique properties of the novel human thiamin diphosphate (ThDP)-dependent enzyme 2-oxoadipate dehydrogenase (hE1a), known as dehydrogenase E1 and transketolase domain-containing protein 1 that is encoded by the DHTKD1 gene. It is involved in the oxidative decarboxylation of 2-oxoadipate (OA) to glutaryl-CoA on the final degradative pathway of L-lysine and is critical for mitochondrial metabolism. Functionally active recombinant hE1a has been produced according to both kinetic and spectroscopic criteria in our toolbox leading to the following conclusions: (i) The hE1a has recruited the dihydrolipoyl succinyltransferase (hE2o) and the dihydrolipoyl dehydrogenase (hE3) components of the tricarboxylic acid cycle 2-oxoglutarate dehydrogenase complex (OGDHc) for its activity...
November 27, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29191221/increased-synovial-lipodystrophy-induced-by-high-fat-diet-aggravates-synovitis-in-experimental-osteoarthritis
#8
Ane Larrañaga-Vera, Ana Lamuedra, Sandra Pérez-Baos, Ivan Prieto-Potin, Leticia Peña, Gabriel Herrero-Beaumont, Raquel Largo
BACKGROUND: Metabolic syndrome (MetS) may be associated with knee osteoarthritis (OA), but the association between the individual components and OA are not well-understood. We aimed to study the effect of hypercholesterolemia on synovial inflammation in knee OA. METHODS: OA was surgically induced in rabbits fed with standard diet (OA group, n = 10) or in rabbits fed with high fat diet (OA-HFD, n = 10). Healthy rabbits receiving standard diet (Control, n = 10) or fed with HFD (HFD, n = 6) were also monitored...
December 1, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29190760/simulated-ocean-acidification-reveals-winners-and-losers-in-coastal-phytoplankton
#9
Lennart T Bach, Santiago Alvarez-Fernandez, Thomas Hornick, Annegret Stuhr, Ulf Riebesell
The oceans absorb ~25% of the annual anthropogenic CO2 emissions. This causes a shift in the marine carbonate chemistry termed ocean acidification (OA). OA is expected to influence metabolic processes in phytoplankton species but it is unclear how the combination of individual physiological changes alters the structure of entire phytoplankton communities. To investigate this, we deployed ten pelagic mesocosms (volume ~50 m3) for 113 days at the west coast of Sweden and simulated OA (pCO2 = 760 μatm) in five of them while the other five served as controls (380 μatm)...
2017: PloS One
https://www.readbyqxmd.com/read/29162237/inter-individual-gene-variants-associated-with-trabecular-bone-plasticity-a-step-forward-in-the-personal-genomics-of-degenerative-bone-disease
#10
Enrique Caso, Cristina C Sabiers, Daniel López-Guillén, Jaime Caso, Manuel Toledano, Raquel Osorio, Estrella Osorio, Carmen Lozano, Enrique Guerado
Continuing tissue destruction in osteoarthrosis is maintained by molecular pathways related to an unbalanced chondrocyte metabolism, the loss of reactive oxygen species (ROS) homeostasis, increase catabolism in a degraded matrix and the limited response to growth factors due to cell aging. Rare deleterious gene variants driving relevant molecular pathways may play a key role in the pathogenesis and genetic control of common diseases and may also influence the common gene variants observed in GWAS. We use molecular profiling technologies based on massive sequencing of genes to interrogate clinical samples for a variety of molecules involved in the pathogenesis pathways of OA and also to derive new insights for drug targeting discovery at an early stage of the disease...
November 2017: Injury
https://www.readbyqxmd.com/read/29160173/gene-delivery-to-joints-by-intra-articular-injection
#11
Christopher H Evans, Steven Craig Ghivizzani, Paul D Robbins
Most forms of arthritis are incurable, difficult to treat and a major cause of disability in western countries. Better local treatment of arthritis is impaired by the pharmacokinetics of the joint that make it very difficult to deliver drugs to joints at sustained, therapeutic concentrations. This is especially true of biologic drugs, such as proteins and RNA, many of which show great promise in pre-clinical studies. Gene transfer provides a strategy for overcoming this limitation. The basic concept is to deliver cDNAs encoding therapeutic products by direct intra-articular injection, leading to sustained, endogenous synthesis of the gene products within the joint...
November 21, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/29156720/novel-strategies-of-raman-imaging-for-brain-tumor-research
#12
Imiela Anna, Polis Bartosz, Polis Lech, Abramczyk Halina
Raman diagnostics and imaging have been shown to be an effective tool for the analysis and discrimination of human brain tumors from normal structures. Raman spectroscopic methods have potential to be applied in clinical practice as they allow for identification of tumor margins during surgery. In this study, we investigate medulloblastoma (grade IV WHO) (n= 5), low-grade astrocytoma (grades I-II WHO) (n =4), ependymoma (n=3) and metastatic brain tumors (n= 1) and the tissue from the negative margins used as normal controls...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29150345/hydrostatic-pressure-as-epigenetic-modulator-in-chondrocyte-cultures-a-study-on-mirna-155-mirna-181a-and-mirna-223-expression-levels
#13
Anna De Palma, Sara Cheleschi, Nicola Antonio Pascarelli, Stefano Giannotti, Mauro Galeazzi, Antonella Fioravanti
Mechanical stimuli and hydrostatic pressure (HP) play an important role in the regulation of chondrocytes metabolism. Growing evidence demonstrated the ability of mechanical loading to modulate the expression of microRNA (miRNA) involved in chondrocytes homeostasis and in the pathogenesis of osteoarthritis (OA). The expression of miR-155, miR-181a and miR-223 in normal and OA chondrocyte cultures, and their potential modifications following exposure to three hours of a cyclic HP (1-5 MPa, frequency 0.25 Hz) were investigated...
November 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29138850/role-of-mitochondrial-function-in-the-invasiveness-of-human-colon-cancer-cells
#14
Chen-Sung Lin, Li-Tzu Liu, Liang-Hung Ou, Siao-Cian Pan, Chia-I Lin, Yau-Huei Wei
We investigated the role of mitochondrial function in the invasiveness of human colorectal cancer (CRC) cell lines, using paired primary SW480 and metastatic SW620 cells, and appraised the clinical relevance of the alteration of mtDNA copy number in 33 pairs of CRC specimens after surgical resection. Suppression of mitochondrial function was achieved by the exposure of cells to oligomycin A (OA) or by knockdown of mitochondrial transcriptional factor A (TFAM) to evaluate their effects on energy metabolism, reactive oxygen species, protein expression levels of epithelial-mesenchymal transition (EMT) markers and invasive activity of CRC cells...
November 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29136950/a-novel-sesquiterpene-glycoside-from-loquat-leaf-alleviates-oleic-acid-induced-steatosis-and-oxidative-stress-in-hepg2-cells
#15
Tunyu Jian, Yuexian Wu, Xiaoqin Ding, Han Lv, Li Ma, Yuanyuan Zuo, Bingru Ren, Lei Zhao, Bei Tong, Jian Chen, Weilin Li
Loquat (Eriobotrya japonica) leaf has displayed beneficial effect on metabolic syndrome. In our previously study, total sesquiterpene glycosides (TSG) isolated from Loquat leaf exhibited therapeutic effect on Non-alcoholic fatty liver disease (NAFLD) in vivo, but the accurate active compound remains unknown. Sesquiterpene glycoside 1 (SG1) is a novel compound, which is exclusively isolated from Loquat leaf, but its biological activity has been rarely reported. The present study was designed to evaluate the pharmacological effect of SG1, the main component of TSG, in oleic acid (OA)-induced HepG2 cell model of NAFLD with its related mechanisms of action...
November 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29132974/topical-electrophilic-nitro-fatty-acids-potentiate-cutaneous-inflammation
#16
Alicia R Mathers, Cara D Carey, Meaghan E Killeen, Sonia R Salvatore, Laura K Ferris, Bruce A Freeman, Francisco J Schopfer, Louis D Falo
Endogenous electrophilic fatty acids mediate anti-inflammatory responses by modulating metabolic and inflammatory signal transduction and gene expression. Nitro-fatty acids and other electrophilic fatty acids may thus be useful for the prevention and treatment of immune-mediated diseases, including inflammatory skin disorders. In this regard, subcutaneous (SC) injections of nitro oleic acid (OA-NO2), an exemplary nitro-fatty acid, inhibit skin inflammation in a model of allergic contact dermatitis (ACD). Given the nitration of unsaturated fatty acids during metabolic and inflammatory processes and the growing use of fatty acids in topical formulations, we sought to further study the effect of nitro-fatty acids on cutaneous inflammation...
November 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29131268/correlation-of-insulin-like-growth-factor-1-and-osteoarthritic-cartilage-degradation-a-spontaneous-osteoarthritis-in-guinea-pig
#17
F-Y Wei, J K Lee, L Wei, F Qu, J-Z Zhang
OBJECTIVE: The pathogenesis of osteoarthritis centers on the imbalance between catabolic and anabolic processes in cartilage metabolism. Insulin growth factor 1 (IGF-1) has been shown to have anabolic effects in cartilage in vitro. This study aim to determine whether IGF-1 on cartilage is associated with loss of chondrocyte and extracellular matrix breakdown using the Hartley guinea pig model. MATERIALS AND METHODS: Cartilage from the medial and lateral tibial plateau of 6-month and 12-month old Hartley guinea pigs were used for this study...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29127754/-osteoarthritis-as-part-of-metabolic-syndrome
#18
Karel Pavelka
Osteoarthritis (OA) is the most frequent joint disease, whereas etiopathogenesis of OA is not entirely clarified. It is a heterogeneous disorder and genetic as well as biomechanical, endocrine and inflammatory effects may be involved in its origin. The author examines the problems concerning relationships between the metabolic syndrome and OA, and states that the prevalence of metabolic syndrome in patients with OA is higher than in those without OA (59 % vs 23 %). It remains problematic that one of the main components of metabolic syndrome is obesity which in itself is a risk factor for arthrosis development in the weight-bearing joints, not for OA in the hands...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29117636/chlamydia-trachomatis-regulates-growth-and-development-in-response-to-host-cell-fatty-acid-availability-in-the-absence-of-lipid-droplets
#19
Manu Sharma, Maria A Recuero-Checa, Francis Yue Fan, Deborah Dean
Chlamydia trachomatis (Ct) is a Gram-negative obligate intracellular pathogen of humans that causes significant morbidity from sexually transmitted and ocular diseases globally. Ct acquires host fatty acids (FA) to meet the metabolic and growth requirements of the organism. Lipid droplets (LDs) are storehouses of FAs in host cells and have been proposed to be a source of FAs for the parasitophorous vacuole, termed inclusion, in which Ct replicates. Previously, cells devoid of LDs were shown to produce reduced infectious progeny at 24 hours post-infection (hpi)...
November 8, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/29108676/the-fatty-acid-content-of-plankton-is-changing-in-subtropical-coastal-waters-as-a-result-of-oa-results-from-a-mesocosm-study
#20
Tifeng Wang, Shanying Tong, Nana Liu, Futian Li, Mark L Wells, Kunshan Gao
Ocean Acidification (OA) effects on marine plankton are most often considered in terms of inorganic carbon chemistry, but decreasing pH may influence other aspects of cellular metabolism. Here we present the effects of OA on the fatty acid (FA) content and composition of an artificial phytoplankton community (Phaeodactylum tricornutum, Thalassiosira weissflogii, and Emiliania huxleyi) in a fully replicated, ∼4 m(3) mesocosm study in subtropical coastal waters (Wuyuan Bay, China, 24.52°N, 117.18°E) at present day (400 μatm) and elevated (1000 μatm) pCO2 concentrations...
November 3, 2017: Marine Environmental Research
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