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MPO Heart disease

Fumiyoshi Tsunoda, Stefania Lamon-Fava, Katalin V Horvath, Ernst J Schaefer, Bela F Asztalos
BACKGROUND: Population studies have shown an inverse association between high-density lipoprotein (HDL) cholesterol levels and risk of coronary heart disease (CHD). HDL has different functions, including the ability to protect biological molecules from oxidation. Our aim was to evaluate the performance of two fluorescence-based assays in assessing the antioxidative capacity of HDL. METHODS: We compared the antioxidative capacity of HDL with the phospholipid 2',7'-dichlorodihydrofluorescein (DCF) assay and the dihydrorhodamine 123 (DHR) assay in controls and in subjects at increased risk of CHD, including subjects with established CHD, and subjects with elevated plasma triglycerides (TG), serum amyloid A (SAA), or myeloperoxidase (MPO) levels...
2016: Lipids in Health and Disease
Zarife Nigâr Özdemir-Kumral, Dilek Özbeyli, Ahmet Faruk Özdemir, M Buğra Karaaslan, Kübra Kaytaz, Mustafa F Kara, Olgu Enis Tok, Feriha Ercan, Berrak Ç Yeğen
INTRODUCTION: Despite its adverse health consequences, tobacco smoking is associated with lower incidence of several neurodegenerative and inflammatory diseases. The present study is aimed to show the effects of nicotine, major tobacco constituent, on five organs targeted by sepsis. METHODS: Male Wistar albino rats received tap water with (5 mg/kg) or without nicotine for 14 days. Under ketamine anesthesia, sepsis (n=50) was induced by ligation and punction of the cecum, while sham group (n=8) had only laparotomy...
August 3, 2016: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
Q Zhang, H Q Zhou, Y H Li, J Guo, P H Xu, M H Lu, X L Liu, L Wang, S G Li
OBJECTIVE: To investigate the clinical features of patients with antineutrophil cytoplasmic antibody (ANCA) associated vasculitis (AAV), and to explore the disease activity of AAV patients and the relationship with prognosis. METHODS: The clinical data of 46 cases of AAV patients in the First Affiliated Hospital of PLA General Hospital were analyzed retrospectively.The clinical and laboratory features of each clinical subtype were compared.The disease activity of AAV and the relationship between disease activity and prognosis were evaluated...
July 19, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
F Su, Q Qiu, D M Cai, L Q Liang, X Y Yang
OBJECTIVE: To evaluate the clinical features, treatment and prognosis of Eosinophilic Granulomatous Vasculitis. METHODS: We analyzed retrospectively the clinical and laboratory features, treatment and prognosis of 43 patients with Eosinophilic Granulomatous Vasculitis who admitted to the Department of Rheumatology of the First Affiliated University Hospital of Sun Yat-sen University between 2005 and 2014. RESULTS: Of the 43 patients, 31 patients (72...
July 19, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Qianqian Dong, Xiao Lin, Lan Shen, Yi Feng
Ischemia-reperfusion (IR) injury is one of the common ischemic diseases in organs such as brain, heart, kidney, liver, and intestine, which often leads to cell apoptosis and organ failure. The study of herbal polysaccharides for IR injury has a long time, and has laid a solid foundation for the next research work. The purpose of this review is to objectively appraise the current experimental research situation of treating IR injury in organs by polysaccharides from traditional Chinese medicines. Twenty-four kinds of polysaccharides that show effective treatment in organ ischemia were mentioned on the review...
July 15, 2016: International Journal of Biological Macromolecules
Feng Kai, Liu Lifeng, Song Haijing, Liu Xianhua, Xia Hu
OBJECTIVE: To investigate the predictive value of 4,183 Da peptide of dermcidin protein in the early diagnosis and differential diagnosis of ischemic heart disease. METHODS: A prospective controlled study was conducted. Serum samples were drawn from 161 patients with acute coronary'syndrome [ACS, including 46 patients with unstable angina (UA), 23 with acute non-ST elevation myocardial infarction, and 92 with acute ST segment elevation myocardial infarction], 111 subjects for routine physical examination, including 45 patients with hypertension history, 42 with coronary heart disease, 22 with diabetes, and 54 patients with non-ACS (including pulmonary embolism, aortic dissection, aneurysm, arrhythmia, myocarditis, coronary myocardial bridge, pleurisy, pneumothorax pneumomediastinum, rib fracture, reflux esophagitis, peptic ulcer, and pancreatitis) to serve as controls...
December 2015: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
Luyao Zhang, Yao Nie, Yishan Zheng, Lu Ke, Zhihui Tong, Weiqin Li, Jieshou Li
BACKGROUND: Recent studies suggest that beta-adrenergic blockers attenuate systemic inflammation and improve survival in sepsis. We investigated whether esmolol can reduce lung injury and modulate inflammatory response in a rat model of severe acute pancreatitis (SAP). METHODS: A taurocholate-induced SAP was used, with or without continuously intravenous pumping of esmolol (15 mg/kg/h). Heart rate and arterial pressure were monitored. Nine hrs after esmolol administration, blood was drawn for blood gas analyses and cytokine (interleukin(IL)-6, tumor necrosis factor (TNF)-α) detections, lungs and pancreata were isolated for measurements of myeloperoxidase (MPO) activity and histological damage...
September 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
Z N O Kumral, G Sener, S Ozgur, M Koc, S Suleymanoglu, C Hurdag, B C Yegen
The importance of physical activity in the management of renovascular diseases is well-known, but lacks evidence of underlying mechanisms. The purpose of the study was to elucidate the protective/therapeutic effects of regular exercise on experimental renovascular hypertension (RVH)-induced oxidative stress and cardiac dysfunction. Wistar albino rats underwent a RVH surgery (2K1C, Goldblatt). Three weeks later half of the rats started swimming exercise for 9 weeks (n = 15), while the sedentary RVH group (n = 15) had no exercise during that period...
February 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Mohammed Al-Yahya, Mohammad Raish, Mansour S AlSaid, Ajaz Ahmad, Ramzi A Mothana, Mohammed Al-Sohaibani, Mohammed S Al-Dosari, Mohammad K Parvez, Syed Rafatullah
BACKGROUND/PURPOSE: Ajwa, a special variety of Saudi Arabian dates (Phoenix dactylifera L.) is a rich source of nutrients, fibers and bioactive molecules. While previous studies have shown the therapeutic value of dates phytoconstituents in liver and kidney diseases etc., its cardioprotective potential remains elusive. We therefore, investigated the cardioprotective effect of lyophilized Ajwa extract (AJLE) ex vivo as well as in vivo. METHODS: Ex vivo cardioprotective effect of AJLE was evaluated on DCFH-toxicated cardiomyoblast cells (H9C2)...
October 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Irina V Gorudko, Alexey V Sokolov, Ekaterina V Shamova, Daria V Grigorieva, Elena V Mironova, Igor V Kudryavtsev, Sergey A Gusev, Alexander A Gusev, Andrey V Chekanov, Vadim B Vasilyev, Sergey N Cherenkevich, Oleg M Panasenko, Alexander V Timoshenko
Myeloperoxidase (MPO) is an oxidant-producing enzyme that can also bind to cellular surface proteins. We found that band 3 protein and glycophorins A and B were the key MPO-binding targets of human red blood cells (RBCs). The interaction of MPO with RBC proteins was mostly electrostatic in nature because it was inhibited by desialation, exogenic sialic acid, high ionic strength, and extreme pH. In addition, MPO failed to interfere with the lectin-induced agglutination of RBCs, suggesting a minor role of glycan-recognizing mechanisms in MPO binding...
February 1, 2016: Archives of Biochemistry and Biophysics
David J Kennedy, Kevin Shrestha, Brendan Sheehey, Xinmin S Li, Anuradha Guggilam, Yuping Wu, Michael Finucan, Alaa Gabi, Charles M Medert, Kristen Westfall, Allen Borowski, Olga Fedorova, Alexei Y Bagrov, W H Wilson Tang
BACKGROUND: Plasma levels of cardiotonic steroids are elevated in volume-expanded states, such as chronic kidney disease, but the role of these natriuretic hormones in subjects with heart failure (HF) is unclear. We sought to determine the prognostic role of the cardiotonic steroids marinobufagenin (MBG) in HF, particularly in relation to long-term outcomes. METHODS AND RESULTS: We first measured plasma MBG levels and performed comprehensive clinical, laboratory, and echocardiographic assessment in 245 patients with HF...
November 2015: Circulation. Heart Failure
Xin Huang, Yuan Wang, Lijiao Xie, Ying Zhang, Sha Tang, Shiwei Yin, Xuejing Gao, Juan Cai, Weili Wang, Jun Zhang, Jinghong Zhao, Yunjian Huang, Yafei Li, Jingbo Zhang
BACKGROUND: There are few reports of IgA nephropathy (IgAN) with antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis. METHODS: The authors report the clinical and pathological findings in 14 patients with IgAN and ANCA seropositivity. RESULTS: These retrospective cases consisted of 4 men and 10 women with a mean age of 44.4 ± 12.7 years. ANCA-positivity was documented by EUROBlot kits and indirect immunofluorescence in all patients...
September 2015: Clinical Nephrology
Jaanika Ilisson, Maksim Zagura, Kersti Zilmer, Erik Salum, Kaire Heilman, Anneli Piir, Vallo Tillmann, Jaak Kals, Mihkel Zilmer, Chris Pruunsild
INTRODUCTION: Juvenile idiopathic arthritis (JIA) is a frequent childhood rheumatic disease characterized by chronic inflammation. The latter has been related to impairment of arterial functional-structural properties, atherogenesis and later cardiovascular events. The objective of this study was to examine intima-media thickness (IMT) and the parameters of arterial stiffness in children with JIA at diagnosis and their correlation with JIA subtype and markers of inflammation and atherosclerosis...
2015: Arthritis Research & Therapy
Nilminie Rathnayake, Anders Gustafsson, Anna Norhammar, Barbro Kjellström, Björn Klinge, Lars Rydén, Taina Tervahartiala, Timo Sorsa
BACKGROUND AND OBJECTIVE: Matrix metalloproteinase (MMP) -8, -9 and myeloperoxidase (MPO) are inflammatory mediators. The potential associations between MMP-8, -9, MPO and their abilities to reflect cardiovascular risk remains to be evaluated in saliva. The objective of this study was to investigate the levels and associations of salivary MMP-8, -9, MPO and tissue inhibitors of metalloproteinase (TIMP)-1 in myocardial infarction (MI) patients and controls with or without periodontitis...
2015: PloS One
Z W Shuai, Y F Lv, M M Zhang, Z Y Hu
This prospective study analyzed the clinical characteristics of myeloperoxidase antineutrophil cytoplasmic antibody (MPO-ANCA)-associated vasculitis and explored the relationship between MPO-ANCA and clinical manifestations of the associated vasculitis in 132 p-ANCA and MPO-ANCA-positive patients (average age, 62.3 ± 14.8 years) who were initially diagnosed with ANCA-associated vasculitis. The p-ANCA and MPO-ANCA levels in peripheral blood were detected in all patients. Among these, 128 (97%) had microscopic polyangiitis (MPA), 3 (2...
2015: Genetics and Molecular Research: GMR
Shivali Gupta, Charity Smith, Sarah Auclair, Anahi De Jesus Delgadillo, Nisha Jain Garg
Trypanosoma cruzi-induced oxidative and inflammatory responses are implicated in chagasic cardiomyopathy. In this study, we examined the therapeutic utility of a subunit vaccine against T. cruzi and determined if glutathione peroxidase (GPx1, antioxidant) protects the heart from chagasic pathogenesis. C57BL/6 mice (wild-type (WT) and GPx1 transgenic (GPxtg) were infected with T. cruzi and at 45 days post-infection (dpi), immunized with TcG2/TcG4 vaccine delivered by a DNA-prime/Protein-boost (D/P) approach...
2015: PloS One
Frederik H Verbrugge, W H Wilson Tang, Stanley L Hazen
Carbamylation constitutes a posttranslational modification of proteins or amino acids and results from different pathways in vivo. First is the non-enzymatic reaction between isocyanic acid, a decomposition product of urea, and either the N-terminus or the ɛ-amino group of lysine residues. Isocyanic acid levels, while low in vivo, are in equilibrium with urea and are thus increased in chronic and end-stage renal diseases. An alternative pathway involves the leukocyte heme protein myeloperoxidase, which catalyzes the oxidation of thiocyanate in the presence of hydrogen peroxide, producing isocyanate at inflammation sites...
September 2015: Kidney International
Ferenc Kovács, Ibolya Kocsis, Marina Varga, Enikő Sárváry, György Bicsák
INTRODUCTION: Cardiac biomarkers have a prominent role in the diagnosis of acute myocardial infarction. AIM: The aim of the authors was to study the diagnostic effectiveness of automated measurement of cardiac biomarkers. METHOD: Myeloperoxidase, high-sensitivity C-reactive protein, myoglobin, heart-type fatty acid binding protein, creatine kinase, creatine kinase MB, high-sensitivity troponin I and T were measured. RESULTS: The high-sensitivity troponin I was the most effective (area under curve: 0...
June 14, 2015: Orvosi Hetilap
Wei-Jian Zhang, Balz Frei
In this study we investigated the role of astragaloside IV (AS-IV), one of the major active constituents purified from the Chinese medicinal herb Astragalus membranaceus, in LPS-induced acute inflammatory responses in mice in vivo and examined possible underlying mechanisms. Mice were assigned to four groups: vehicle-treated control animals; AS-IV-treated animals (10 mg/kg b.w. AS-IV daily i.p. injection for 6 days); LPS-treated animals; and AS-IV plus LPS-treated animals. We found that AS-IV treatment significantly inhibited LPS-induced increases in serum levels of MCP-1 and TNF by 82% and 49%, respectively...
2015: Mediators of Inflammation
R L Shirole, N L Shirole, M N Saraf
ETHNOPHARMACOLOGICAL RELEVANCE: Embelia ribes Burm. f. (Fam. Myrsinaceae) locally known as Vidanga have been used for treating tumors, ascites, bronchitis, jaundice, diseases of the heart and brain in traditional Indian medicine. However, no scientific studies providing new insights in its pharmacological properties with respect to acute respiratory distress syndrome have been investigated. AIM: The present investigation aimed to elucidate the effectiveness of Embelin isolated from Embelia ribes seeds on attenuation of LPS-induced acute respiratory distress syndrome in murine models...
June 20, 2015: Journal of Ethnopharmacology
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