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https://www.readbyqxmd.com/read/28512264/gallic-acid-inhibits-the-release-of-adamts4-in-nucleus-pulposus-cells-by-inhibiting-p65-phosphorylation-and-acetylation-of-the-nf-%C3%AE%C2%BAb-signaling-pathway
#1
Yao Huang, Jian Chen, Tao Jiang, Zheng Zhou, Bin Lv, Guoyong Yin, Jin Fan
This study investigated the inhibitory effect of gallic acid (GA) on the release of A Disintegrin and Metalloproteinase with Thrombospondin motifs 4 (ADAMTS4) through the regulation of the NF-κB signaling pathway, which is closely related to the matrix metalloproteinases in nucleus pulposus cells. Different concentrations of GA were added to TNF-α-induced human nucleus pulposus cells (hNPCs) and intervertebral disc degeneration rat model. ADAMTS-4 expression increased both in the TNF-α-induced nucleus pulposus cells and intervertebral disc degeneration rat model...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28508977/thrombotic-microangiopathy-caused-by-interferon-%C3%AE-1b-for-multiple-sclerosis-a-case-report
#2
Haruomi Nishio, Tatsuo Tsukamoto, Takeshi Matsubara, Yoichiro Okada, Ryosuke Takahashi, Motoko Yanagita
A 41-year-old man with a history of multiple sclerosis (MS) developed thrombotic microangiopathy after taking interferon β-1b for 10 years. Although the relapse of his MS was well controlled under normal blood pressure, he had persistent nausea, anorexia, gait disturbance and visual disorder 1 month before admission. He showed lethargy and high blood pressure (180/102 mmHg). Laboratory test results revealed anemia and thrombocytopenia, elevated LDH and renal dysfunction. Urinary dipstick showed a 2+ result for proteinuria and 3+ for hematuria...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28482435/-expression-of-nf-%C3%AE%C2%BAb-in-a-degenerative-human-intervertebral-disc-model
#3
X F Wang, A P Zhang, Z Y Sun, C Liu, L H Kuang, J W Tian
Objective: To investigate the changes in the expression of NF-κB signaling pathway in human degenerative intervertebral discs. Methods: From October 2014 to March 2016, 55 nucleus pulposus of surgical patients with degenerative human intervertebral disc were collected for study in Department of Orthopedic Surgey, Hospital of Zaozhuang Mining Corporation, and Department of Orthopedics, Shanghai General Hospital Affiliated Shanghai Jiaotong University, School of Medicine.The collected nucleus pulposus tissues were divided into two groups: experimental group(30) and control group(25)...
May 9, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28458159/celastrol-reduces-il-1%C3%AE-induced-matrix-catabolism-oxidative-stress-and-inflammation-in-human-nucleus-pulposus-cells-and-attenuates-rat-intervertebral-disc-degeneration-in-vivo
#4
Jian Chen, Jun Xuan, Yun-Tao Gu, Ke-Si Shi, Jun-Jun Xie, Jiao-Xiang Chen, Zeng-Ming Zheng, Yu Chen, Xi-Bang Chen, Yao-Sen Wu, Xiao-Lei Zhang, Xiang-Yang Wang
Celastrol has been reported to exert therapeutic potential on pro-inflammatory diseases including asthma, Crohn's disease, arthritis and neurodegenerative disorders via inhibiting NF-κB pathway. While the effect of celastrol on intervertebral disc degeneration (IDD), which is also a pro-inflammatory disease, remains unknown. In this study, we evaluated the effect of celastrol on IDD in IL-1β treated human nucleus pulposus cells in vitro as well as in puncture induced rat IDD model in vivo. Our results showed that celastrol reduced the expression of catabolic genes (MMP-3, 9, 13, ADAMTS-4, 5), oxidative stress factors (COX-2, iNOS) and pro-inflammatory factors (IL-6, TNF-a) induced by IL-1β in nucleus pulposus cells, also phosphorylation of IκBα and p65 were attenuated by celastrol, indicating NF-κB pathway was inhibited by celastrol in nucleus pulposus cells...
April 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28457019/dynamics-of-von-willebrand-factor-reactivity-in-sickle-cell-disease-during-vaso-occlusive-crisis-and-steady-state
#5
Joep W R Sins, Marein Schimmel, Brenda M Luken, Erfan Nur, Sacha S Zeerleder, Charlotte F J van Tuijn, Dees P M Brandjes, Wil F Kopatz, Rolf T Urbanus, Joost C M Meijers, Bart J Biemond, Karin Fijnvandraat
BACKGROUND: Endothelial activation plays a central role in the pathophysiology of vaso-occlusion in sickle cell disease (SCD), facilitating adhesive interactions with circulating blood cells. Upon activation various adhesive molecules are expressed, including von Willebrand factor (VWF). Increased VWF levels have been observed in patients with SCD during steady state. However, the role of VWF in the pathogenesis of SCD vaso-occlusion is unclear. OBJECTIVES: To longitudinally assess quantity and reactivity of VWF and its regulating protease ADAMTS-13 during vaso-occlusive crisis (VOC)...
April 29, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28454584/direct-expression-of-active-human-tissue-inhibitors-of-metalloproteinases-by-periplasmic-secretion-in-escherichia-coli
#6
Ki Baek Lee, Dong Hyun Nam, Jacob A M Nuhn, Juan Wang, Ian C Schneider, Xin Ge
BACKGROUND: As regulators of multifunctional metalloproteinases including MMP, ADAM and ADAMTS families, tissue inhibitors of metalloproteinases (TIMPs) play a pivotal role in extracellular matrix remodeling, which is involved in a wide variety of physiological processes. Since abnormal metalloproteinase activities are related to numerous diseases such as arthritis, cancer, atherosclerosis, and neurological disorders, TIMPs and their engineered mutants hold therapeutic potential and thus have been extensively studied...
April 28, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28433501/disrupted-in-schizophrenia-1-regulates-the-processing-of-reelin-in-the-perinatal-cortex
#7
Nicholas J Bradshaw, Svenja V Trossbach, Sabrina Köber, Susanne Walter, Ingrid Prikulis, Sascha Weggen, Carsten Korth
Disrupted in Schizophrenia 1 (DISC1) is a prominent gene in mental illness research, encoding a scaffold protein known to be of importance in the developing cerebral cortex. Reelin is a critical extracellular protein for development and lamination of the prenatal cortex and which has also been independently implicated in mental illness. Regulation of reelin activity occurs through processing by the metalloproteinases ADAMTS-4 and ADAMTS-5. Through cross-breeding of heterozygous transgenic DISC1 mice with heterozygous reeler mice, which have reduced reelin, pups heterozygous for both phenotypes were generated...
April 19, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28417352/follicular-adamts-1-and-aggrecan-levels-in-polycystic-ovary-syndrome
#8
Esra Nur Tola, Dilek Ulusoy Karatopuk, Nadiye Koroglu, Merve Ergin, Hilmi Baha Oral
PURPOSE: Polycystic ovary syndrome (PCOS) is the most common cause of ovulatory dysfunction and female infertility. The etiopathogenetic mechanisms of PCOS have been studied for many years, although exact causes remain unclear. It has been demonstrated that proteoglycan degradation by a disintegrin-like metalloproteinase with thrombospondin type motifs-1 (ADAMTS-1) is essential for ovulation and fertilization. The objective of our study is to analyze the levels of ADAMTS-1 and aggrecan in the follicular fluid (FF) of PCOS patients compared with normal ovulatory women and to determine whether these markers could be a predictor of in vitro fertilization (IVF) success in PCOS patients...
April 17, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28413093/-thrombotic-thrombocytopenia-purpura-in-martinique-retrospective-study-between-2008%C3%A2-and-2015
#9
M Patient, P Fuseau, C Deligny
INTRODUCTION: Some studies suggest that thrombotic thrombocytopenic purpura (TTP) occurs more often in African Americans. However there is low evidence for this in the literature. The aim of our study was to describe the clinical and biological characteristics of TTP in the Afro-Caribbean population of Martinique. METHODS: We retrospectively analysed all patients with TTP diagnosed at the Fort-de-France hospital between 2008, January 1st and 2015, December 31st...
April 13, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28406917/methylomic-changes-in-individuals-with-psychosis-prenatally-exposed-to-endocrine-disrupting-compounds-lessons-from-diethylstilbestrol
#10
COMPARATIVE STUDY
Fabrice Rivollier, Boris Chaumette, Narjes Bendjemaa, Mélanie Chayet, Bruno Millet, Nematollah Jaafari, Amina Barhdadi, Louis-Philippe Lemieux Perreault, Sylvie Provost, Marie-Pierre Dubé, Raphaël Gaillard, Marie-Odile Krebs, Oussama Kebir
BACKGROUND: In the Western world, between 1940 and 1970, more than 2 million people were exposed in utero to diethylstilbestrol (DES). In exposed individuals, and in their descendants, adverse outcomes have been linked to such exposure, including cancers, genital malformations, and less consistently, psychiatric disorders. We aimed to explore whether prenatal DES exposure would be associated with DNA methylation changes, and whether these epigenetic modifications would be associated with increased risk of psychosis...
2017: PloS One
https://www.readbyqxmd.com/read/28399545/propionibacterium-acnes-incubation-in-the-discs-can-result-in-time-dependent-modic-changes-a-long-term-rabbit-model
#11
Zhi Shan, Xuyang Zhang, Shengyun Li, Tianming Yu, Junhui Liu, Fengdong Zhao
STUDY DESIGN: A case control study of animal model of Modic changes (MCs) on Rabbits. OBJECTIVE: To evaluate the feasibility of inducing of MCs by injection of Propionibacterium acne (P. acnes) into the lumbar intervertebral discs of rabbits. SUMMARY OF BACKGROUND DATA: MCs have been widely observed, and assume to be closely associated with low back pain and P. acnes, but there are few animal models showing the progression of MCs. METHODS: Ten rabbits were used for the study...
April 10, 2017: Spine
https://www.readbyqxmd.com/read/28383518/genetic-architecture-of-bone-quality-variation-in-layer-chickens-revealed-by-a-genome-wide-association-study
#12
Jun Guo, Congjiao Sun, Liang Qu, Manman Shen, Taocun Dou, Meng Ma, Kehua Wang, Ning Yang
Skeletal problems in layer chickens are gaining attention due to animal welfare and economic losses in the egg industry. The genetic improvement of bone traits has been proposed as a potential solution to these issues; however, genetic architecture is not well understood. We conducted a genome-wide association study (GWAS) on bone quality using a sample of 1534 hens genotyped with a 600 K Chicken Genotyping Array. Using a linear mixed model approach, a novel locus close to GSG1L, associated with femur bone mineral density (BMD), was uncovered in this study...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28380082/heparin-induced-thrombocytopenia-as-a-cause-of-prolonged-low-platelet-count-in-a-patient-with-thrombotic-thrombocytopenic-purpura-treated-with-plasmapheresis
#13
Agata Winiarska, Norbert Kwella, Tomasz Stompór
Thrombotic thrombocytopenic purpura (TTP) is a rare disorder belonging to thrombotic microangiopathies (TMA) and is caused by functional deficiency of the ADAMTS-13 metalloproteinase. Plasma exchange (PE) remains the treatment of choice in this disease. Here, were describe the case of a patient who apparently recovered from TTP following multiple sessions of PE, but remained thrombocytopenic. Careful analysis revealed the development of heparin-induced thrombocytopenia (HIT) that precluded platelet count (PLT) normalization...
April 5, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28374895/increased-von-willebrand-factor-over-decreased-adamts-13-activity-is-associated-with-poor-prognosis-in-patients-with-advanced-non-small-cell-lung-cancer
#14
Renyong Guo, Jiezuan Yang, Xia Liu, Jianping Wu, Yu Chen
BACKGROUND: Hypercoagulability induced by the imbalance between von Willebrand factor (VWF) secretion and its cleaving protease (ADAMTS-13) has been correlated with cancer metastasis. The aim of this study was to explore the prognostic significance of the VWF/ADAMTS-13 ratio in advanced non-small-cell lung cancer (NSCLC). METHODS: Pre-treatment sera/plasma levels of VWF, ADAMTS-13, VWF/ADAMTS-13 ratio, factor (F) VIII, and other clinical/laboratory parameters were measured in 119 patients with advanced NSCLC and 102 healthy controls...
April 4, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28364187/chrysin-attenuates-il-1%C3%AE-induced-expression-of-inflammatory-mediators-by-suppressing-nf-%C3%AE%C2%BAb-in-human-osteoarthritis-chondrocytes
#15
Wenhao Zheng, Zhenyu Tao, Leyi Cai, Chunhui Chen, Chuanxu Zhang, Quan Wang, Xiaozhou Ying, Wei Hu, Hua Chen
Osteoarthritis (OA) is a degenerative joint disease characterized by cartilage degradation and inflammation. Chrysin, a natural flavonoid extracted from honey and propolis, has been reported to have anti-inflammatory effects. However, the anti-inflammatory effects of chrysin on OA have not been reported. This study aimed to assess the effects of chrysin on human OA chondrocytes. Human OA chondrocytes were pretreated with chrysin (1, 5, 10 μM) for 2 h and subsequently stimulated with IL-1β for 24 h. Production of NO, PGE2, MMP-1, MMP-3, MMP-13, ADAMTS-4, and ADAMTS-5 was evaluated by the Griess reaction and ELISAs...
March 31, 2017: Inflammation
https://www.readbyqxmd.com/read/28362704/downregulation-of-adamts18-may-serve-as-a-poor-prognostic-biomarker-for-cervical-cancer-patients
#16
Lin Zhang, Yibin Liu, Pengtao Zheng
ADAMTS18 is a member of ADAMTS (A Disintegrin and Metalloproteinase with Thrombospondin motifs) family proteins which have been found to play important roles in cancer progression and metastasis in different cancer types. The present study aims at evaluating the prognostic significance of ADAMTS18 in cervical cancer. The expression levels of ADAMTS18 was evaluated by real-time PCR in normal (N=28) and cervical cancer tissues from patients at different stages as well as in tumor tissues from 35 cervical cancer patients with primary cancer and 29 patients with metastasis...
March 30, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28355351/naringenin-regulates-production-of-matrix-metalloproteinases-in-the-knee-joint-and-primary-cultured-articular-chondrocytes-and-alleviates-pain-in-rat-osteoarthritis-model
#17
C C Wang, L Guo, F D Tian, N An, L Luo, R H Hao, B Wang, Z H Zhou
Inflammation of cartilage is a primary symptom for knee-joint osteoarthritis. Matrix metalloproteinases (MMPs) are known to play an important role in the articular cartilage destruction related to osteoarthritis. Naringenin is a plant-derived flavonoid known for its anti-inflammatory properties. We studied the effect of naringenin on the transcriptional expression, secretion and enzymatic activity of MMP-3 in vivo in the murine monosodium iodoacetate (MIA) osteoarthritis model. The assessment of pain behavior was also performed in the MIA rats...
March 23, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28326725/-analysis-of-salivary-protease-spectrum-in-chronic-periodontitis
#18
Li Qian, Zhou Xuedong, Fan Yaping, Yang Tengyu, Wu Songtao, Yu Yu, Chen Jiao, Zhang Ping, Feng Yun
OBJECTIVE: This study aimed to investigate the difference in salivary protease expression in patients with chronic periodontitis and normal individuals. METHODS: The stimulating saliva in patients with chronic periodontitis and normal individuals were collected. Protein chip technology was adapted to analyze salivary protease spectrum. RESULTS: Among the 34 proteases in the chip, disintegrin and metalloproteinase (ADAM)8, matrix metalloproteinase (MMP)-8, MMP-12, neprilysin/CD10, and uridylyl phosphate adenosine/urokinase showed a significantly increased concentration in the saliva of chronic periodontitis patients compared with those in the saliva of normal individuals (P<0...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28325251/interferon-induced-thrombotic-microangiopathy-tma-analysis-and-concise-review
#19
REVIEW
Ajay Kundra, Jen Chin Wang
Interferon (IFN) has been associated with development of thrombotic microangiopathy including thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS). We reviewed literature from the earliest reported association in 1993, to July 2016 and found 68 cases. Analysis of this data shows: (1) Mean age at diagnosis was 47 years (95% CI, 44-50). (2) Majority of cases were seen where IFN was used for the treatment of chronic myelogenous leukemia (CML), multiple sclerosis (MS), chronic hepatitis C virus infection (HCV) and one case each for hairy cell leukemia (HCL) and Sezary syndrome...
April 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28323982/versican-proteolysis-by-adamts-proteases-and-its-influence-on-sex-steroid-receptor-expression-in-uterine-leiomyoma
#20
Ndeye-Aicha Gueye, Timothy J Mead, Christopher D Koch, Charles V Biscotti, Tommaso Falcone, Suneel S Apte
Context: Leiomyomas have abundant extracellular matrix (ECM), with upregulation of versican, a large proteoglycan. Objective: We investigated ADAMTS (a disintegrin-like and metalloprotease with thrombospondin type 1 motifs) protease-mediated versican cleavage in myometrium and leiomyoma and the effect of versican knockdown in leiomyoma cells. Design: We used quantitative reverse transcription polymerase chain reaction (qRT-PCR), western blotting, immunohistochemistry, and RNA in situ hybridization for analysis of myometrium, leiomyoma and immortalized myometrium and leiomyoma cells...
May 1, 2017: Journal of Clinical Endocrinology and Metabolism
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