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https://www.readbyqxmd.com/read/27908842/role-of-versican-and-adamts-1-in-polycystic-ovary-syndrome
#1
Sibel Özler, Efser Öztaş, Aytekin Tokmak, Merve Ergin, Meryem Pekcan Kuru, Başak Güler Gümüş, Halil İbrahim Yakut, Nafiye Yılmaz
OBJECTIVE: Background: ADAMTS-1 is a matrix metalloproteinase which cleaves versican in the cumulus oocyte complex, under the effect of luteinizing hormone surge in the periovulatory period. Altered levels of it may have a role in the disease pathogenesis. OBJECTIVE: We aimed to detect serum versican and a disintegrin and metalloproteinase with thrombospondin motif- 1 (ADAMTS-1) levels in polycystic ovary syndrome (PCOS) patients, and compare the results with the healthy controls...
December 2, 2016: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/27902619/association-between-plasma-adamts-7-levels-and-severity-of-disease-in-patients-with-stable-obstructive-coronary-artery-disease
#2
Jie Yu, Boda Zhou, Haiyi Yu, Jiangli Han, Ming Cui, Fuchun Zhang, Guisong Wang, Lijun Guo, Wei Gao
The metalloproteinase family of a disintegrin and metalloproteinase with thrombospondin motifs-7 (ADAMTS-7) was reported to be a novel locus associated with human coronary artery disease. This study aimed to investigate plasma ADAMTS-7 levels in stable obstructive CAD patients and elucidate the relationship between plasma ADAMTS-7 levels and the severity of CAD assessed by the Syntax score.This was a single center cross-sectional study performed in 182 CAD patients. ELISA was used to measure plasma ADAMTS-7 levels...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27879029/progesterone-receptor-and-prostaglandins-mediate-luteinizing-hormone-induced-changes-in-messenger-rnas-for-adamts-proteases-in-theca-cells-of-bovine-periovulatory-follicles
#3
E L Willis, P J Bridges, J E Fortune
Little is known about the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) family of extracellular proteases in ovarian follicles of non-rodent species, particularly in theca cells. In the present study, temporal patterns of change in mRNA for four ADAMTS subtypes and the hormonal transcriptional regulation of two subtypes were investigated in theca cells during the periovulatory period in cattle. Follicles were obtained at 0 h post-gonadotropin-releasing hormone (GnRH; preovulatory) or at 6, 12, 18, or 24 h after injection of GnRH (periovulatory) to induce a luteinizing hormone (LH)/follicle-stimulating hormone surge...
November 23, 2016: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/27878664/diagnosis-and-management-of-acquired-thrombotic-thrombocytopenic-purpura-in-southeast-china-a-single-center-experience-of-60-cases
#4
Xinping Zhou, Xingnong Ye, Yanling Ren, Chen Mei, Liya Ma, Jiansong Huang, Weilai Xu, Juying Wei, Li Ye, Wenyuan Mai, Wenbin Qian, Haitao Meng, Jie Jin, Hongyan Tong
Acquired thrombotic thrombocytopenic purpura (TTP) is a rare life-threatening thrombotic microangiopathy. This study aimed to provide a profile of the diagnosis and management of patients with acquired TTP collected in 10 years in a single center in southeast China. A total of 60 patients diagnosed with acute acquired TTP from March 2005 to August 2015 were enrolled. Among the 60 patients, 52 patients presented with their first episodes, and eight patients had two or more episodes. The median age at presentation was 49 (range, 17 to 78) years with a female predominance (male:female ratio, 1:1...
November 23, 2016: Frontiers of Medicine
https://www.readbyqxmd.com/read/27863298/butein-inhibits-il-1%C3%AE-induced-inflammatory-response-in-human-osteoarthritis-chondrocytes-and-slows-the-progression-of-osteoarthritis-in-mice
#5
Wenhao Zheng, Hui Zhang, Yonglong Jin, Quan Wang, Linwei Chen, Zhenhua Feng, Hua Chen, Yaosen Wu
Osteoarthritis (OA) is a progressive degenerative disease characterized by irreversible articular cartilage destruction. Butein, a polyphenolic compound isolated from the stem bark of cashews and Rhus verniciflua Stokes, has been reported to have anti-inflammatory effects. This study aimed to assess the effect of butein on human OA chondrocytes and mice OA models induced by destabilization of the medial meniscus (DMM). In vitro, human OA chondrocytes were pretreated with butein at 10, 50μM and subsequently stimulated with IL-1β (10ng/ml) for 24h...
November 14, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27855162/adamts5-is-a-critical-regulator-of-virus-specific-t-cell-immunity
#6
Meagan McMahon, Siying Ye, Leonard Izzard, Daniel Dlugolenski, Ralph A Tripp, Andrew G D Bean, Daniel R McCulloch, John Stambas
The extracellular matrix (ECM) provides physical scaffolding for cellular constituents and initiates biochemical and biomechanical cues that are required for physiological activity of living tissues. The ECM enzyme ADAMTS5, a member of the ADAMTS (A Disintegrin-like and Metalloproteinase with Thrombospondin-1 motifs) protein family, cleaves large proteoglycans such as aggrecan, leading to the destruction of cartilage and osteoarthritis. However, its contribution to viral pathogenesis and immunity is currently undefined...
November 2016: PLoS Biology
https://www.readbyqxmd.com/read/27844209/the-impact-of-parathyroidectomy-on-serum-adamts1-adamts4-levels-insulin-resistance-and-subclinical-cardiovascular-disease-in-primary-hyperparathyroidism
#7
Melia Karakose, Mustafa Caliskan, Muyesser Sayki Arslan, Taner Demirci, Suleyman Karakose, Erman Cakal
PURPOSE: Primary hyperparathyroidism has been associated with increased incidence of morbidity and mortality of the cardiovascular system. The etiopathogenetic mechanisms underlying this association are still not completely clear. Accumulating evidence suggested that a disintegrin and metalloproteinase with thrombospondin-like motifs (ADAMTS) has a role in the development of inflammation and atherosclerosis. In this study, we aimed to determine whether there is a change in serum levels of ADAMTS1, ADAMTS4, carotid intima-media thickness, and cardiovascular risk score after the surgery and also whether there is a relationship between ADAMTS levels and cardiovascular risk score in hypercalcemic primary hyperparathyroidism patients...
November 14, 2016: Endocrine
https://www.readbyqxmd.com/read/27807630/-role-of-plasmapheresis-and-immunoadsorption-in-salvage-therapy-of-rheumatological-diseases
#8
M Boser, J T Kielstein
Many rheumatological diseases are either caused by specific known proteins, such as antibodies or mediated by a plethora of cytokines. Both the unspecific immunosuppressive therapy and the specific action of biologics usually require time to be effective; therefore, extracorporeal forms of treatment are increasingly being employed in severe forms of rheumatological diseases as well as in patients who cannot tolerate pharmacological treatment or where the risk of pharmacological treatment may outweigh the potential benefits...
December 2016: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/27792110/role-of-sirt1-plays-in-nucleus-pulposus-cells-and-intervertebral-disc-degeneration
#9
Ji Guo, Minghao Shao, Feizhou Lu, Jianyuan Jiang, Xinlei Xia
STUDY DESIGN: Experimental in vivo and in vitro study of intervertebral disc (IVD) degeneration and the mechanism exploration. OBJECTIVE: This report aims to verify the expression of Sirt1 in IVD degeneration of different grades and explore its potential mechanism in human nucleus pulposus cells. SUMMARY OF BACKGROUND DATA: Silent mating type information regulator 2 homolog 1 (Sirt1) has draw immense attention because of its influence on a variety of aging-related diseases...
October 25, 2016: Spine
https://www.readbyqxmd.com/read/27789465/systemic-inhibition-of-il-6-stat3-signalling-protects-against-experimental-osteoarthritis
#10
Augustin Latourte, Chahrazad Cherifi, Jérémy Maillet, Hang-Korng Ea, Wafa Bouaziz, Thomas Funck-Brentano, Martine Cohen-Solal, Eric Hay, Pascal Richette
OBJECTIVE: To investigate the impact of systemic inhibition of interleukin 6 (IL-6) or signal transducer and activator of transcription (Stat3) in an experimental model of osteoarthritis (OA). METHODS: Expression of major catabolic and anabolic factors of cartilage was determined in IL-6-treated mouse chondrocytes and cartilage explants. The anti-IL-6-receptor neutralising antibody MR16-1 was used in the destabilisation of the medial meniscus (DMM) mouse model of OA...
October 27, 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/27783214/selenium-reduces-early-signs-of-tumor-necrosis-factor-alpha-induced-meniscal-tissue-degradation
#11
Klaus Häfelein, Andrea Preuße-Prange, Peter Behrendt, Bodo Kurz
Meniscal integrity is a prerequisite for sustained knee joint health and prevention of meniscal degeneration is a main research goal. Cartilage-protective effects of selenium have been described, but little is known about the impact on the meniscus. We therefore investigated the influence of sodium selenite on meniscal explants under tumor necrosis factor-alpha (TNFα)-stimulated proinflammatory conditions. Meniscal explant disks (3 mm diameter × 1 mm thickness) were isolated from 2-year-old cattle and incubated with TNFα (10 ng/ml) and sodium selenite (low dose, LoD 6...
October 25, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27781079/atypical-hemolytic-uremic-syndrome-secondary-to-lupus-nephritis-responsive-to-eculizumab
#12
Alexander G Raufi, Shruti Scott, Omar Darwish, Kevin Harley, Kanwarpal Kahlon, Sheetal Desai, Yuxin Lu, Minh-Ha Tran
Among the spectrum of disease manifestations associated with systemic lupus erythematosus, lupus nephritis is particularly concerning due to the potential for renal failure. This autoimmune attack may not, however, be limited to the kidney and is increasingly being recognized as a trigger for atypical Hemolytic Uremic Syndrome (aHUS). Atypical HUS falls under the spectrum of the thrombotic microangiopathies (TMAs) - a group of disorders characterized by microangiopathic hemolytic anemia, thrombocytopenia, and end organ damage...
September 28, 2016: Hematology Reports
https://www.readbyqxmd.com/read/27779234/adamts-10-and-6-differentially-regulate-cell-cell-junctions-and-focal-adhesions
#13
Stuart A Cain, Ewa J Mularczyk, Mukti Singh, Teresa Massam-Wu, Cay M Kielty
ADAMTS10 and ADAMTS6 are homologous metalloproteinases with ill-defined roles. ADAMTS10 mutations cause Weill-Marchesani syndrome (WMS), implicating it in fibrillin microfibril biology since some fibrillin-1 mutations also cause WMS. However little is known about ADAMTS6 function. ADAMTS10 is resistant to furin cleavage, however we show that ADAMTS6 is effectively processed and active. Using siRNA, over-expression and mutagenesis, it was found ADAMTS6 inhibits and ADAMTS10 is required for focal adhesions, epithelial cell-cell junction formation, and microfibril deposition...
October 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27775779/microrna-142-promotes-the-expression-of-enos-in-human-peripheral-blood-derived-endothelial-progenitor-cells-in-vitro
#14
H-W Zhang, H Li, H Yan, B-L Liu
OBJECTIVE: MicroRNAs (miRNAs) are small non-coding RNAs (18-25nt) that regulate gene expression mainly through affecting post-transcriptional modification. In this research, the human peripheral blood-derived endothelial progenitor cells were isolated to research the inter-coordination of miR-142, ADAMTS-1, VEGF and eNOS through gene over-expressed in EPCs. MATERIALS AND METHODS: Endothelial progenitor cells (EPCs) were isolated from human peripheral blood, and demonstrate the interaction of miR-142 and targets (ADAMTS-1) in vitro...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27771306/overexpression-of-hmgb1-a-box-reduced-il-1%C3%AE-induced-mmp-expression-and-the-production-of-inflammatory-mediators-in-human-chondrocytes
#15
Yahui Fu, Jinlai Lei, Yan Zhuang, Kun Zhang, Daigang Lu
The pro-inflammatory cytokine interleukin-1 beta (IL-1β) plays a crucial role in the pathogenesis of osteoarthritis (OA) by stimulating several mediators that contribute to cartilage degradation. The aim of this study was to investigate the effects and mechanism of high mobility group box 1 (HMGB1) inhibitors HMGB1 A-box on the expression of matrix metalloproteinase (MMP) and the production of inflammatory mediators in human osteoarthritis chondrocytes after activation by IL-1β. We found that the overexpression of HMGB1 A-box significantly decreased the IL-1β-stimulated the production of MMP-1, MMP-3 and MMP-9, and also reduced the elevated levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) associated with the inhibition of prostaglandin E2 (PGE2) and nitric oxide (NO) production in IL-1β-stimulated chondrocytes...
October 19, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27764205/adamts-1-is-found-in-the-nuclei-of-normal-and-tumoral-breast-cells
#16
Suély V Silva, Maíra A Lima, Nathalie Cella, Ruy G Jaeger, Vanessa M Freitas
Proteins secreted in the extracellular matrix microenvironment (ECM) by tumor cells are involved in cell adhesion, motility, intercellular communication and invasion. The tumor microenvironment is expansively modified and remodeled by proteases, resulting in important changes in both cell-cell and cell-ECM interactions and in the generation of new signals from the cell surface. Metalloproteinases belonging to the ADAMTS (a disintegrin and metalloprotease with thrombospondin motifs) family have been implicated in tissue remodeling events observed in cancer development, growth and progression...
2016: PloS One
https://www.readbyqxmd.com/read/27736317/a-three-dimensional-chondrocyte-macrophage-coculture-system-to-probe-inflammation-in-experimental-osteoarthritis
#17
Satyavrata Samavedi, Patricia Diaz-Rodriguez, Joshua D Erndt-Marino, Mariah S Hahn
The goal of the present study was to develop a fully three-dimensional (3D) coculture system that would allow for systematic evaluation of the interplay between activated macrophages (AMs) and chondrocytes in osteoarthritic disease progression and treatment. Toward this end, our coculture system was first validated against existing in vitro osteoarthritis models, which have generally cultured healthy normal chondrocytes (NCs)-in two-dimensional (2D) or 3D-with proinflammatory AMs in 2D. In this work, NCs and AMs were both encapsulated within poly(ethylene glycol) diacrylate hydrogels to mimic the native 3D environments of both cell types within the osteoarthritic joint...
November 18, 2016: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/27717422/left-ventricular-assist-device-design-reduces-von-willebrand-factor-degradation-a-comparative-study-between-the-heartmate-ii-and-the-evaheart-left-ventricular-assist-system
#18
Carlo R Bartoli, Jooeun Kang, David Zhang, Jessica Howard, Michael Acker, Pavan Atluri, Tadashi Motomura
BACKGROUND: Supraphysiologic shear stress from continuous-flow left ventricular assist devices (LVADs) accelerates von Willebrand factor (vWF) degradation and predisposes patients to nonsurgical bleeding. It is unknown whether unique design characteristics of LVADs differentially affect vWF degradation. We tested the hypothesis that the centrifugal-flow EVAHEART (Evaheart, Houston, TX) left ventricular assist system (LVAS), which was designed to minimize shear stress (low operational revolutions per minute [rpm], larger flow gaps, low shear stress, flat H-Q curve), reduced vWF degradation versus the axial-flow HeartMate II (Thoratec, Pleasanton, CA) LVAD...
October 4, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27699833/effects-of-cell-type-and-configuration-on-anabolic-and-catabolic-activity-in-3d-coculture-of-mesenchymal-stem-cells-and-nucleus-pulposus-cells
#19
Ann Ouyang, Alec E Cerchiari, Xinyan Tang, Ellen Liebenberg, Tamara Alliston, Zev J Gartner, Jeffrey C Lotz
Tissue engineering constructs to treat intervertebral disc degeneration must adapt to the hypoxic and inflammatory degenerative disc microenvironment. The objective of this study was to determine the effects of two key design factors, cell type and cell configuration, on the regenerative potential of nucleus pulposus cell (NPC) and mesenchymal stem cell (MSC) constructs. Anabolic and catabolic activity was quantified in constructs of varying cell type (NPCs, MSCs, and a 50:50 coculture) and varying configuration (individual cells and micropellets)...
October 4, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27690009/cxcl12-cxcr4-axis-regulates-aggrecanase-activation-and-cartilage-degradation-in-a-post-traumatic-osteoarthritis-rat-model
#20
Weiwei Lu, Jia Shi, Jinming Zhang, Zhengtao Lv, Fengjing Guo, Hui Huang, Wentao Zhu, Anmin Chen
We evaluated the role of the CXCL12/CXCR4 (C-X-C motif chemokine ligand 12/C-X-C chemokine receptor type 4) axis in aggrecanase-mediated cartilage degradation, and explored the underlying mechanism in a post-traumatic osteoarthritis rat model. Expression of CXCL12/CXCR4 and ADAMTS-5 was analyzed in the knees of osteoarthritic and non-arthritic rats using Western blot, ELISA, immunohistochemistry and immunofluorescence. Rodent studies were performed using Sprague-Dawley rats, with animals divided into three groups: Destabilization of the medial meniscus/AMD3100-treated (DMM/AMD3100-treated), DMM/PBS-treated, and sham controls...
2016: International Journal of Molecular Sciences
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