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https://www.readbyqxmd.com/read/28429960/extracellular-matrix-markers-and-risk-of-myocardial-infarction-the-hunt-study-in-norway
#1
Thor Ueland, Lars E Laugsand, Lars J Vatten, Imre Janszky, Carl Platou, Annika E Michelsen, Jan K Damås, Pål Aukrust, Bjørn O Åsvold
Aims Extracellular matrix remodelling may influence atherosclerotic progression and plaque stability. We hypothesized that evaluation of extracellular matrix markers, with potentially different roles during atherogenesis, could provide information on underlying mechanisms and risk of myocardial infarction (MI) in apparently healthy individuals. Methods We conducted a case-control study nested within the population-based HUNT2 cohort in Norway. A total of 58,761 men and women, free of known cardiovascular disease, were followed for a first MI...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28427186/microrna-494-promotes-apoptosis-and-extracellular-matrix-degradation-in-degenerative-human-nucleus-pulposus-cells
#2
Liang Kang, Cao Yang, Yu Song, Kangcheng Zhao, Wei Liu, Wenbin Hua, Kun Wang, Ji Tu, Shuai Li, Huipeng Yin, Yukun Zhang
PURPOSE: This study investigated the expression and function of the microRNA-494 in intervertebral disc degeneration (IDD). RESULTS: MicroRNA-494 expression was upregulated during IDD progression; its overexpression increased the expression of ECM catabolic factors such as matrix metalloproteinase and A disintegrin and metalloproteinase with thrombospondin motif in NP cells while decreasing that of anabolic genes such as type II collagen and aggrecan; it also induced the apoptosis of NP cells, as determined by flow cytometry...
March 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424419/integrated-analysis-of-genes-associated-with-poor-prognosis-of-patients-with-colorectal-cancer-liver-metastasis
#3
Zhenyuan Qian, Guobing Zhang, Guangyuan Song, Ji Shi, Lijie Gong, Yiping Mou, Yong Han
Colorectal cancer (CRC) is one of the most common malignances in the gut. Liver is the most common metastasis site of CRC. This study focuses on the primary CRC and its liver metastasis, aiming to discover several liver metastasis related genes and provide therapeutic candidates. We compared gene expression patterns among the groups of normal colorectal mucosa, primary tumor and the liver metastasis using a CRC gene expression dataset. 84 genes were found to be upregulated in both primary tumor and liver metastases...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417352/follicular-adamts-1-and-aggrecan-levels-in-polycystic-ovary-syndrome
#4
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/28416509/none-of-the-above-thrombotic-microangiopathy-beyond-ttp-and-hus
#5
Camila Masias, Sumithira Vasu, Spero R Cataland
Acquired thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS) are appropriately at the top of a clinician's differential when a patient presents with a clinical picture consistent with an acute thrombotic microangiopathy (TMA). However, there are several additional diagnoses that should be considered in patients presenting with an acute TMA, especially in patients with non-deficient ADAMTS13 (a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13) activity (>10%)...
April 17, 2017: Blood
https://www.readbyqxmd.com/read/28416507/thrombotic-thrombocytopenic-purpura
#6
Bérangère S Joly, Paul Coppo, Agnes Veyradier
Thrombotic thrombocytopenic purpura (TTP) is a rare and life-threatening thrombotic micro-angiopathy characterized by a microangiopathic hemolytic anemia, severe thrombocytopenia and organ ischemia linked to disseminated microvascular platelet rich-thrombi. TTP is specifically related to a severe deficiency in ADAMTS13 (A Disintegrin and Metalloprotease with ThromboSpondin type 1 repeats, member 13), the specific von Willebrand factor-cleaving pro-tease. ADAMTS13 deficiency is most frequently acquired via ADAMTS13 autoantibodies but rarely, it is inherited via mutations of ADAMTS13 gene...
April 17, 2017: Blood
https://www.readbyqxmd.com/read/28416050/proteomic-analysis-of-the-endometrium-during-early-pregnancy-in-the-domestic-pig
#7
Justyna Kolakowska, Serhiy Souchelnytskyi, Ravi Kanth Rao Saini, Anita Franczak
Reproductive processes in domestic pigs have been studied extensively. Pigs are one of the main sources of meat for human consumption and are an established model for investigations into mammalian, including human, reproductive physiology. Studies of the uterus during early pregnancy will lead to a better understanding of mechanisms governing pregnancy. Proteomics provides the possibility to explore endometrial functions in an unbiased way. The aim of the study was to compare endometrium harvested from Days 12-13 and 15-16 of pregnancy with the corresponding days of the oestrous cycle...
April 18, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28412645/a-hidden-structural-vulnerability-in-the-thrombospondin-2-deficient-aorta-increases-the-propensity-to-intramural-delamination
#8
C Bellini, N J Kristofik, M R Bersi, T R Kyriakides, J D Humphrey
Mice lacking thrombospondin-2 (TSP2) represent an animal model of impaired collagen fibrillogenesis. Collagen constitutes ~1/3 of the wall of the normal murine descending thoracic aorta (DTA) and is thought to confer mechanical strength at high pressures. Microstructural analysis of the DTA from TSP2-null mice revealed irregular and disorganized collagen fibrils in the adventitia and at the interface between the media and adventitia. Yet, biaxial mechanical tests performed under physiologic loading conditions showed that most mechanical metrics, including stress and stiffness, were not different between mutant and control DTAs at 20- and 40-weeks of age, thus suggesting that the absence of TSP2 is well compensated under normal conditions...
March 9, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28410274/three-hypothetical-inflammation-pathobiology-phenotypes-and-pediatric-sepsis-induced-multiple-organ-failure-outcome
#9
Joseph A Carcillo, E Scott Halstead, Mark W Hall, Trung C Nguyen, Ron Reeder, Rajesh Aneja, Bita Shakoory, Dennis Simon
OBJECTIVES: We hypothesize that three inflammation pathobiology phenotypes are associated with increased inflammation, proclivity to develop features of macrophage activation syndrome, and multiple organ failure-related death in pediatric severe sepsis. DESIGN: Prospective cohort study comparing children with severe sepsis and any of three phenotypes: 1) immunoparalysis-associated multiple organ failure (whole blood ex vivo tumor necrosis factor response to endotoxin < 200 pg/mL), 2) thrombocytopenia-associated multiple organ failure (new onset thrombocytopenia with acute kidney injury and a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13 activity < 57%), and/or 3) sequential multiple organ failure with hepatobiliary dysfunction (respiratory distress followed by liver dysfunction with soluble Fas ligand > 200 pg/mL), to those without any of these phenotypes...
April 13, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28393401/the-potentiating-effect-of-htfpi-in-the-presence-of-hcd47-reduces-the-cytotoxicity-of-human-macrophages
#10
Sung Han Jung, Jeong Ho Hwang, Sang Eun Kim, Kim Young Kyu, Hyo Chang Park, Hoon Taek Lee
BACKGROUND: In pig-to-human xenotransplantation, hyperacute rejection of pig organs could be overcome by the production of α1,3-galactosyltransferase knockout pigs. However, macrophage-mediated acute rejection is another obstacle that needs to be overcome. Among the various candidate genes involved in acute rejection, CD47 inhibits monocyte/macrophage-mediated phagocytosis by identifying the CD47 signal regulatory protein alpha (SIRP-α) as self/non-self. Tissue factor pathway inhibitor (TFPI) is involved in the regulation of the coagulation pathway and is able to bind to another ligand of CD47, thrombospondin-1 (TSP-1)...
April 10, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28383422/acquired-idiopathic-thrombotic-thrombocytopenic-purpura-successfully-treated-with-intravenous-immunoglobulin-and-glucocorticoid-a-case-report
#11
Hiro Nakao, Akira Ishiguro, Nahoko Ikoma, Kentaro Nishi, Chemin Su, Hisaya Nakadate, Mitsuru Kubota, Masaki Hayakawa, Masanori Matsumoto
RATIONALE: Plasma exchange is the principal treatment for acquired thrombotic thrombocytopenic purpura (TTP) but is invasive and may have adverse effects. Reports of immunoglobulin therapy for acquired TTP without plasma exchange are rare. PATIENT CONCERNS: A 14-year-old girl was admitted because of hemolytic anemia and thrombocytopenia. DIAGNOSIS: Acquired TTP was diagnosed based on low ADAMTS13 (a disintegrin-like and metalloproteinase with thrombospondin type 1 motif, 13) activity and a high ADAMTS13 inhibitor level...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28382967/thrombotic-thrombocytopenic-purpura
#12
REVIEW
Johanna A Kremer Hovinga, Paul Coppo, Bernhard Lämmle, Joel L Moake, Toshiyuki Miyata, Karen Vanhoorelbeke
Thrombotic thrombocytopenic purpura (TTP; also known as Moschcowitz disease) is characterized by the concomitant occurrence of often severe thrombocytopenia, microangiopathic haemolytic anaemia and a variable degree of ischaemic organ damage, particularly affecting the brain, heart and kidneys. Acute TTP was almost universally fatal until the introduction of plasma therapy, which improved survival from <10% to 80-90%. However, patients who survive an acute episode are at high risk of relapse and of long-term morbidity...
April 6, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28382235/influences-of-abo-blood-group-age-and-gender-on-plasma-coagulation-factor-viii-fibrinogen-von-willebrand-factor-and-adamts13-levels-in-a-chinese-population
#13
Zongkui Wang, Miaomiao Dou, Xi Du, Li Ma, Pan Sun, Haijun Cao, Shengliang Ye, Peng Jiang, Fengjuan Liu, Fangzhao Lin, Rong Zhang, Changqing Li
BACKGROUND: ABO blood group is a hereditary factor of plasma levels of coagulation factor VIII (FVIII) and von Willebrand factor (VWF). Age and gender have been shown to influence FVIII, VWF, fibrinogen (Fbg), and ADAMTS13 (A disintegrin and metalloprotease with thrombospondin type 1 motif, 13). We investigated the effects of ABO type, age, and gender on plasma levels of FVIII, Fbg, VWF, and ADAMTS13 in a Chinese population. METHODS: A total of 290 healthy volunteers were eligible for this study...
2017: PeerJ
https://www.readbyqxmd.com/read/28373586/critical-role-of-adamts2-a-disintegrin-and-metalloproteinase-with-thrombospondin-motifs-2-in-cardiac-hypertrophy-induced-by-pressure-overload
#14
Xiaodi Wang, Wen Chen, Jie Zhang, Aiman Khan, Liangpeng Li, Fuhua Huang, Zhibing Qiu, Liming Wang, Xin Chen
ADAMTS2 (A Disintegrin and Metalloproteinase With Thrombospondin Motifs 2) is recognized as a metalloproteinase that promotes the cleavage of amino propeptides of types I, II, III, and V procollagens. However, the role of ADAMTS2 in the heart has not yet been defined. Herein, we observed the upregulated expression of ADAMTS2 in failing human hearts and hypertrophic murine hearts. Mice lacking ADAMTS2 display exacerbated cardiac hypertrophy on pressure overload-induced hypertrophic response, whereas mice with cardiac-specific overexpression of ADAMTS2 display alleviation of this detrimental phenotype...
April 3, 2017: Hypertension
https://www.readbyqxmd.com/read/28367342/remission-of-severe-relapsed-and-refractory-ttp-after-multiple-cycles-of-bortezomib
#15
Manu R Pandey, Pankit Vachhani, Evelena P Ontiveros
Acquired thrombotic thrombocytopenic purpura (TTP) is characterized by autoantibodies against a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13 (ADAMTS13). Uncleaved von Willebrand factor (VWF) multimers accumulate and bind to platelets which causes spontaneous microthrombi ultimately causing microangiopathic hemolytic anemia, thrombocytopenia, and end-organ ischemia. Plasma exchange (PEX) with or without steroids constitutes standard first-line therapy with rituximab typically reserved for refractory cases...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28364044/high-serum-thrombospondin-1-concentration-is-associated-with-slower-abdominal-aortic-aneurysm-growth-and-deficiency-promotes-angiotensin-ii-induced-aneurysm-in-mice
#16
Smriti M Krishna, Saiwang Seto, Roby Jose, Jiaze Li, Joseph V Moxon, Paula Clancy, David J Crossman, Paul E Norman, Theophilus I Emeto, Jonathan Golledge
Abdominal aortic aneurysm (AAA) is a common age-related vascular disease characterized by progressive weakening and dilatation of the aortic wall. Thrombospondin-1 (TSP-1; gene Thbs1) is a member of the matricellular protein family important in the control of extracellular matrix remodeling. In this study, the association of serum TSP-1 concentration with AAA progression was assessed in 276 men that underwent repeat ultrasound for a median 5.5 years. AAA growth was negatively correlated with serum TSP-1 concentration ( Spearman's rho (-)0...
March 31, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28362704/downregulation-of-adamts18-may-serve-as-a-poor-prognostic-biomarker-for-cervical-cancer-patients
#17
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/28355731/-the-455th-case-swollen-leg-jaundice-and-mental-disturbance
#18
R Dong, L Weng, T Guo, T N Zhu, J L Zhao, Q J Wu, X F Zeng
A 17-year-old young man with a history of swollen leg and intermittent jaundice was presented to Peking Union Medical College Hospital with acute fever and mental disturbance. He developed deep venous thrombosis, acute myocardial infarction and plantar skin necrosis during the past four years, and was presented with an acute episode of fever, thrombocytopenia, acute kidney injury, acute myocardial infarction, mental disturbance, and obstructive jaundice. Laboratory tests showed schistocytes on peripheral blood smear...
April 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
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
#19
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/28345659/oral-chromium-picolinate-impedes-hyperglycemia-induced-atherosclerosis-and-inhibits-proatherogenic-protein-tsp-1-expression-in-stz-induced-type-1-diabetic-apoe-mice
#20
Rituparna Ganguly, Soumyadip Sahu, Vahagn Ohanyan, Rebecca Haney, Ronaldo J Chavez, Shivani Shah, Siri Yalamanchili, Priya Raman
Increasing evidence suggests thrombospondin-1 (TSP-1), a potent proatherogenic matricellular protein, as a putative link between hyperglycemia and atherosclerotic complications in diabetes. We previously reported that the micronutrient chromium picolinate (CrP), with long-standing cardiovascular benefits, inhibits TSP-1 expression in glucose-stimulated human aortic smooth muscle cells in vitro. Here, we investigated the atheroprotective action of orally administered CrP in type 1 diabetic apolipoprotein E-deficient (ApoE(-/-)) mice and elucidated the role of TSP-1 in this process...
March 27, 2017: Scientific Reports
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