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Creatine kinase

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https://www.readbyqxmd.com/read/28546002/catechins-activate-muscle-stem-cells-by-myf5-induction-and-stimulate-muscle-regeneration
#1
A Rum Kim, Kyung Min Kim, Mi Ran Byun, Jun-Ha Hwang, Jung Il Park, Ho Taek Oh, Hyo Kyeong Kim, Mi Gyeong Jeong, Eun Sook Hwang, Jeong-Ho Hong
Muscle weakness is one of the most common symptoms in aged individuals and increases risk of mortality. Thus, maintenance of muscle mass is important for inhibiting aging. In this study, we investigated the effect of catechins, polyphenol compounds in green tea, on muscle regeneration. We found that (-)-epicatechin gallate (ECG) and (-)-epigallocatechin-3-gallate (EGCG) activate satellite cells by induction of Myf5 transcription factors. For satellite cell activation, Akt kinase was significantly induced after ECG treatment and ECG-induced satellite cell activation was blocked in the presence of Akt inhibitor...
May 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28545280/-impacts-of-early-metoprolol-intervention-on-connexin-43-and-phosphorylated-connexin-43-expression-in-rabbits-with-experimental-myocardial-infarction
#2
M Zhou, Q Lu, J Q Jiang, Z N Chen, Z G Gong, Z G Li, W W Fu, S F Ding
Objective: To investigate the early intervention effects of metoprolol on connexin 43(Cx43) and phosphorylated Cx43 (p-Cx43) expression in rabbits with post myocardial infarction. Methods: A total of 24 adult male New Zealand white rabbits were divided into sham group (n=6), early treatment group(n=6), routine treatment group(n=6), and myocardial infarction group(n=6) with a randomized block design blocked by weight. Myocardial infarction was induced by left anterior descending coronary artery (LAD) ligation...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28545277/-effect-of-the-ischemic-post-conditioning-on-the-prevention-of-the-cardio-renal-damage-in-patients-with-acute-st-segment-elevation-myocardial-infarction-after-primary-percutaneous-coronary-intervention
#3
Y Y Wang, T Li, Y W Liu, B J Liu, X M Hu, Y Wang, W Q Gao, P Wu, L Huang, X Li, W J Peng, M Ning
Objective: To evaluate the effect of the ischemic post-conditioning (IPC) on the prevention of the cardio-renal damage in patients with acute ST-segment elevation myocardial infarction (STEMI) after primary percutaneous coronary intervention (PPCI). Methods: A total of 251 consecutive STEMI patients underwent PPCI in the heart center of Tianjin Third Central Hospital from January 2012 to June 2014 were enrolled in this prospective, randomized, control, single-blinded, clinical registry study. Patients were randomly divided into IPC group (123 cases) and control group (128 cases) with random number table...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28544933/cardiotoxic-effect-of-levofloxacin-and-ciprofloxacin-in-rats-with-without-acute-myocardial-infarction-impact-on-cardiac-rhythm-and-cardiac-expression-of-kv4-3-kv1-2-and-nav1-5-channels
#4
Ahmed M Abdelrady, Sawsan A Zaitone, Noha E Farag, Manal S Fawzy, Yasser M Moustafa
Prolongation of QT interval is possible with fluoroquinolones, yet the underlying contributing factors have not been elucidated. Two widely used fluoroquinolone drugs were at the focus of this study in rats with/without acute myocardial dysfunction (AMI) induced by isoproterenol. The effects of levofloxacin and ciprofloxacin on the cardiac mRNA expression of rat Kv4.3, Kv1.2 and Nav1.5 mRNAs were determined. Administration of the two antibiotics produced dose-dependent changes in ECG parameters that were more prominent in rats with AMI than healthy rats; this was accompanied by elevations in serum lactate dehydrogenase and creatine kinase-MB...
May 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28544788/fibrosing-myopathy-in-systemic-sclerosis-associates-with-higher-mortality
#5
Julie J Paik, Fredrick M Wigley, Ami A Shah, Andrea M Corse, Livia Casciola-Rosen, Laura K Hummers, Andrew L Mammen
OBJECTIVE: To determine if a unique subtype of scleroderma muscle disease exists by comparing the clinical features of systemic sclerosis (SSc) patients with predominant fibrosis on muscle biopsy to those with inflammatory muscle histopathology. METHODS: This retrospective, cross-sectional study included SSc patients with muscle weakness and an available muscle biopsy. Biopsies with fibrosis but without inflammation/necrosis were designated as "fibrosing myopathy" and those with inflammation and/or necrosis were assigned a category of "inflammatory myopathy"...
May 23, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28544603/metabolic-reprogramming-of-macrophages-exposed-to-silk-poly-lactic-co-glycolic-acid-and-silica-nanoparticles
#6
Raquel Saborano, Thidarat Wongpinyochit, John D Totten, Blair F Johnston, F Philipp Seib, Iola F Duarte
Monitoring macrophage metabolism in response to nanoparticle exposure provides new insights into biological outcomes, such as inflammation or toxicity, and supports the design of tailored nanomedicines. This paper describes the metabolic signature of macrophages exposed to nanoparticles ranging in diameter from 100 to 125 nm and made from silk, poly(lactic-co-glycolic acid) or silica. Nanoparticles of this size and type are currently at various stages of preclinical and clinical development for drug delivery applications...
May 8, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28542490/repeated-bouts-of-exhaustive-exercise-increase-circulating-cell-free-nuclear-and-mitochondrial-dna-without-development-of-tolerance-in-healthy-men
#7
Robert Stawski, Konrad Walczak, Piotr Kosielski, Pawel Meissner, Tomasz Budlewski, Gianluca Padula, Dariusz Nowak
OBJECTIVE: Acute single strenuous exercise increases circulating cell free DNA (cf DNA). We tested whether three repeated bouts of exhaustive exercise induced the cf DNA response without development of tolerance in healthy men. METHODS: Eleven average-trained men (age 34.0±5.2 years, body mass index 26.2±3.1 kg/m2, maximal oxygen consumption-VO2max 49.6±4.5 ml/kg*min) performed three treadmill exercise tests to exhaustion at speed corresponding to 70% VO2max separated by 72 hours of resting...
2017: PloS One
https://www.readbyqxmd.com/read/28539741/potential-roles-of-kleinhovia-hospita-l-leaf-extract-in-reducing-doxorubicin-acute-hepatic-cardiac-and-renal-toxicities-in-rats
#8
Yulia Yusrini Djabir, M Aryadi Arsyad, Sartini Sartini, Subehan Lallo
BACKGROUND: Doxorubicin (DOX) is a potent chemotherapy agent; however, its use may lead to cardiac, hepatic, and renal dysfunction. Kleinhovia hospita L extract contains antioxidant compounds that have been shown to reduce chemical-induced hepatotoxicity. OBJECTIVES: This study aimed to examine the protective effects of Kleinhovia sp. extract to reduce DOX acute toxicities. MATERIALS AND METHODS: Thirty male rats were assigned to the following groups: Group I as controls, Group II was given DOX i...
April 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28539729/anti-fatigue-effect-of-green-tea-polyphenols-epigallocatechin-3-gallate-egcg
#9
Yu-Song Teng, Di Wu
BACKGROUND: (-)-Epigallocatechin-3-gallate (EGCG) is the most abundant of the green tea polyphenols that exhibit a variety of bioactivities. The objective of this study was to evaluate the anti-fatigue effect of EGCG by forced swimming exercise. MATERIALS AND METHODS: The mice were divided into one control group and three EGCG-treated groups. The control group was administered with distilled water and EGCG-treated groups were administered with different dose of EGCG (50, 100, and 200 mg/kg) by oral gavage for 28 days...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28538414/clinical-predictors-for-the-manifestation-of-late-gadolinium-enhancement-after-acute-myocardial-infarction
#10
Nadine Abanador-Kamper, Lars Kamper, Marc Vorpahl, Hilmar Brinkmann, Vasiliki Karamani, Patrick Haage, Melchior Seyfarth
Despite prompt revascularization, some patients with acute myocardial infarction (AMI) develop myocardial scars, which can be visualized by late gadolinium enhancement (LGE) in cardiovascular magnetic resonance imaging (CMR). Our goal was to identify angiographic findings that were predictive for scar development in patients after reperfused AMI.We examined 136 patients after first ST-elevated myocardial infarction by CMR after a median of 4 days (range: 2-7). Patients with manifestation of LGE were matched to patients without LGE by means of age and gender...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538307/can-cold-water-immersion-enhance-recovery-in-elite-olympic-weightlifters-an-individualized-perspective
#11
Jan Schimpchen, Maximilian Wagner, Alexander Ferrauti, Michael Kellmann, Mark Pfeiffer, Tim Meyer
Schimpchen, J, Wagner, M, Ferrauti, A, Kellmann, M, Pfeiffer, M, and Meyer, T. Can cold water immersion enhance recovery in elite Olympic weightlifters? An individualized perspective. J Strength Cond Res 31(6): 1569-1576, 2017-We investigated whether cold water immersion (CWI) after intensive training sessions can enhance recovery in elite Olympic weightlifters, taking into account each athlete's individual response pattern. The entire German male Olympic weightlifting national team participated in the study (n = 7), ensuring collection of data from elite athletes only...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538253/immune-myopathy-with-perimysial-pathology-associated-with-interstitial-lung-disease-and-anti-ej-antibodies
#12
Patrick M Kwon, Lan Zhou, Rajeev Motiwala, Leslie D Kerr, Susan C Shin
OBJECTIVES: We report a case of immune myopathy with perimysial pathology associated with anti-glycyl-transfer RNA synthetase (anti-EJ) antibody and an excellent treatment response. METHODS: Chart review. RESULTS: A 36-year-old woman presented with 3 months of fatigue, weight loss, progressive weakness in a scapuloperoneal distribution, and dysphagia. Nerve conduction studies, electromyography, and ultrasound suggested an irritable myopathy...
June 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28536758/serum-levels-of-adipokines-in-patients-with-idiopathic-inflammatory-myopathies-a-pilot-study
#13
Javier Loaiza-Félix, Mariana Moreno-Ramírez, F Luis Pérez-García, Valentín Jiménez-Rojas, Fausto Sánchez-Muñoz, M Luis Amezcua-Guerra
Adipokines are cytokines not only regulating metabolic and endocrine activities, but also modulating inflammatory and immune responses in several clinical settings, including autoimmunity. This study was aimed to evaluate whether serum adipokine levels may be useful as markers of disease activity in patients with idiopathic inflammatory myopathies (IIM). Adiponectin, leptin, chemokine C-C motif ligand-2 (CCL2), interleukin (IL)-6, and tumor necrosis factor (TNF) were measured in the serum of all participants...
May 23, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28536085/interaction-between-the-effects-of-the-selective-estrogen-modulator-femarelle-and-a-vitamin-d-analog-in-human-umbilical-artery-vascular-smooth-muscle-cells
#14
Dalia Somjen, Esther Knoll, Orli Sharon, Ariel Many, Naftali Stern
To further investigate the interaction between vitamin D system and estrogen-mimetic compounds in the human vasculature we studied the effect of the "less- calcemic" analog of 1,25(OH)2D3 (1,25D); JK 1624F2-2 (JKF) in the presence of selective estrogen modulator femarelle (F), the phytoestrogen daidzein (D) and estradiol-17b (E2) on (3)[H] thymidine incorporation (DNA synthesis) and creatine kinase specific activity (CK) in human umbilical artery vascular smooth muscle cells (VSMC). F, D and E2, stimulated DNA synthesis at low concentrations, and inhibited it at high concentrations...
May 20, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28534431/ameliorating-effect-of-anti-alzheimer-s-drugs-on-the-bidirectional-association-between-type-2-diabetes-mellitus-and-alzheimer-s-disease
#15
Amira S Ahmed, Rehab M Elgharabawy, Amal H Al-Najjar
Mild to severe forms of nervous system damage were exhibited by approximately 60-70% of diabetics. It is important to understand the association between type 2 diabetes mellitus and Alzheimer's disease. The aim of the present work is to understand the bidirectional association between type 2 diabetes and Alzheimer's disease pathogenesis, that was monitored by glycaemic status, lipid profile, amyloid beta 40 and 42 (Aβ40 and Aβ42), C-reactive protein, total creatine kinase, total lactate dehydrogenase, D-dimer and magnesium measurements, to assess the association between theses biochemical markers and each other, to estimate the possibility of utilizing the amyloid beta as biochemical marker of T2D in Alzheimer's patients, and to evaluate the effect of piracetam and memantine drugs on diabetes mellitus...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28533752/protocatechuic-acid-a-phenolic-from-sansevieria-roxburghiana-leaves-suppresses-diabetic-cardiomyopathy-via-stimulating-glucose-metabolism-ameliorating-oxidative-stress-and-inhibiting-inflammation
#16
Niloy Bhattacharjee, Tarun K Dua, Ritu Khanra, Swarnalata Joardar, Ashis Nandy, Achintya Saha, Vincenzo De Feo, Saikat Dewanjee
Persistent hyperglycemia, impairment of redox status and establishment of inflammatory pathophysiology integrally play important role in the pathogenesis of diabetic cardiomyopathy (DC). Present study examined the therapeutic potential of protocatechuic acid isolated from the Sansevieria roxburghiana rhizomes against DC employing rodent model of type 2 diabetes (T2D). T2D was induced by high fat diet + a low-single dose of streptozotocin (35 mg/kg, i.p.). T2D rats exhibited significantly (p < 0.01) high fasting blood glucose level...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28529047/bezafibrate-prevents-mitochondrial-dysfunction-antioxidant-system-disturbance-glial-reactivity-and-neuronal-damage-induced-by-sulfite-administration-in-striatum-of-rats-implications-for-a-possible-therapeutic-strategy-for-sulfite-oxidase-deficiency
#17
Mateus Grings, Alana Pimentel Moura, Belisa Parmeggiani, Julia Tauna Pletsch, Gabriela Miranda Fernandez Cardoso, Pauline Maciel August, Cristiane Matté, Angela T S Wyse, Moacir Wajner, Guilhian Leipnitz
Sulfite accumulates in tissues of patients affected by sulfite oxidase (SO) deficiency, a neurometabolic disease characterized by seizures and progressive encephalopathy, often resulting in early death. We investigated the effects of sulfite on mitochondrial function, antioxidant system, glial reactivity and neuronal damage in rat striatum, as well as the potential protective effects of bezafibrate on sulfite-induced toxicity. Thirty-day-old rats were intrastriatally administered with sulfite (2μmol) or NaCl (2μmol; control) and euthanized 30min after injection for evaluation of biochemical parameters and western blotting, or 7days after injection for analysis of glial reactivity and neuronal damage...
May 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28527566/abnormalities-in-high-energy-phosphate-metabolism-in-first-episode-bipolar-disorder-measured-using-31-p-magnetic-resonance-spectroscopy
#18
Fei Du, Cagri Yuksel, Virginie-Anne Chouinard, Polly Huynh, Kyle Ryan, Bruce M Cohen, Dost Öngür
BACKGROUND: Brain energy metabolism is critical for supporting synaptic function and information processing. A growing body of evidence suggests abnormalities in brain bioenergetics in psychiatric disorders, including both bipolar disorder (BD) and schizophrenia. (31)P magnetic resonance spectroscopy provides a noninvasive window into these processes in vivo. Using this approach, we previously showed that patients with BD show normal adenosine triphosphate (ATP) and phosphocreatine levels at rest but cannot maintain normal ATP levels in the visual cortex during times of high energy demand (photic stimulation)...
April 7, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28526264/celecoxib-aggravates-cardiac-apoptosis-in-l-name-induced-pressure-overload-model-in-rats-immunohistochemical-determination-of-cardiac-caspase-3-mcl-1-bax-and-bcl-2
#19
Sarah M Mosaad, Sawsan A Zaitone, Abdelazim Ibrahim, Amani A El-Baz, Dina M Abo-Elmatty, Yasser M Moustafa
The mechanism of celecoxib cardiovascular adverse events was earlier investigated; yet in-depth investigations are needed to assess the involvement of its pro-apoptotic effect throughout this process. An in-vivo chronic rat model of pressure overload employing Nʷ-nitro-l-arginine methyl ester (L-NAME) was tested at different time intervals to ensure the occurrence of persistent myocardial apoptosis along with pressure overload. Seven groups of male Wistar rats were assigned as (i) distilled water; (ii-iv) L-NAME (60 mg/kg) for 6, 12 or 16 weeks; (v-vii) L-NAME [16 weeks] + celecoxib (25, 50 or 100 mg/kg), from week 13 to week 16...
May 16, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28523511/-therapy-resistant-polymyositis-is-the-diagnosis-correct
#20
G Ceccon, H C Lehmann, E Neuen-Jacob, G Meng, G R Fink, G Wunderlich
We report the case of a 32-year-old woman with severely elevated serum creatine kinase (CK; 80,000 U/l) and progressive proximal pareses. As muscular biopsy showed inflammatory infiltrates, polymyositis was suspected and immunosuppressive treatment was initiated. However, clinical improvement could not be achieved. Gene sequencing of the DYSF-gene showed a previously unreported homozygous mutation. In summary, elevated serum CK and inflammatory infiltrates in the muscle biopsy are not specific for polymyositis, but may also occur in degenerative diseases (muscular dystrophy), such as dysferlinopathy...
May 18, 2017: Zeitschrift Für Rheumatologie
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