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Judith A R van Waes, Linda M Peelen, Hans Kemperman, Remco B Grobben, Hendrik M Nathoe, Wilton A van Klei
BACKGROUND: Myocardial injury after noncardiac surgery, as measured by troponin elevation, is strongly associated with mortality. However, it is unknown in which patients prognosis can be improved. The presence of kinetic changes of troponin may be associated with a worse prognosis and warrant more aggressive management. Therefore, we aimed to study the kinetics of troponin in patients with postoperative myocardial injury, and to determine the added predictive value of kinetic changes of troponin on mortality...
October 12, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
A I Macfarlane, D Rudd, E Knight, L A G Marshman, E P Guazzo, D S Anderson
: Prior studies have suggested that elevated serum Troponin-I (TnI) levels immediately after non-cardiac surgical procedures (8-40%) represent subclinical cardiac stress which independently predicts increased 30-day mortality. Routine post-operative TnI monitoring has therefore been suggested as a standard of care. However, no prior studies have focussed on elective degenerative spine surgery, whilst few have measured pre-op TnI. Further, prolonged prone positioning could represent an additional, independent, cardiac stress...
October 1, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Bin Pan, Hongwei Yu, Gregory J Fischer, Jeffery M Kramer, Quinn H Hogan
: Dorsal root ganglion (DRG) electrical stimulation (ganglionic field stimulation, GFS) is effective in relieving clinical pain, but its mechanism is unknown. We therefore developed a rat model GFS to test analgesic effects in the context of neuropathic pain. GFS was applied with a bipolar electrode at L4, using parameters replicating clinical use (20Hz, 150μs pulse width, current at 80% of motor threshold). Neuropathic pain was generated by tibial nerve injury (TNI). Pain behavior was monitored by determining the threshold for withdrawal from punctate mechanical stimuli, by identifying hyperalgesic responses to noxious mechanical stimuli, and by hypersensitivity to cold...
September 26, 2016: Journal of Pain: Official Journal of the American Pain Society
Gap-Don Kim, Jin-Kyu Seo, Hyeon-Woong Yum, Jin-Yeon Jeong, Han-Sul Yang
The purpose of this study was to find discrimination markers for four major meat species such as beef, pork, chicken and duck. Myofibrillar and sarcoplasmic proteins isolated from each meat type were analyzed by one-dimensional gel electrophoresis and some proteins were identified through LC-MS/MS analysis. We confirmed that troponin I (TnI), enolase 3, l-lactate dehydrogenase (LDH) and triose-phosphate isomerase (TPI) could be useful markers for discrimination of mammals from poultry due to their different electrophoretic mobility...
February 15, 2017: Food Chemistry
Agnieszka Zaucha-Prażmo, Elżbieta Sadurska, Katarzyna Drabko, Jerzy R Kowalczyk
Cardiotoxicity is one of the complications following haematopoietic stem cell transplantation (HSCT), but its diagnosis may be hampered due to the presence of different post-transplant comorbidities. The aim of the study was to assess the incidence of cardiac complications and the significance of biochemical markers (NT-proBNP, ANP, ET-1, and TnI) and ECHO systolic and diastolic parameters analysis in children treated with HSCT. Thirty consecutive children (median age 9.6 years) were included in the study. The control group consisted of 14 healthy children (median age of 10...
2016: Contemporary Oncology Współczesna Onkologia
Ji Seong Kim, Jin Hee Jeong, Sin Ju Moon, Hyuk Ahn, Ho Young Hwang
BACKGROUND: Del Nido (DN) cardioplegic solution (CPS) has been widely used during pediatric cardiac surgery. However, its use in the field of adult cardiac surgery is not popular yet. We evaluated efficacy of DN cardioplegia in adult cardiac surgical patients. METHODS: Fifty-three adult patients (mean age, 54±16 years) who underwent cardiovascular surgery using DN cardioplegia were enrolled. Myocardial troponin I (TnI) level up to three days after surgery and early clinical outcomes were evaluated...
August 2016: Journal of Thoracic Disease
Dominik P Guensch, Janelle Yu, Gobinath Nadeshalingam, Kady Fischer, Jane Shearer, Matthias G Friedrich
BACKGROUND: Previous serological studies have shown controversial results whether defibrillation or cardioversion can cause myocardial injury. Cardiovascular Magnetic Resonance (CMR) can be used to detect myocardial edema, hyperemia and capillary leak as features of acute myocardial injury. The aim of this study was to assess for myocardial and skeletal muscle injury in swine following transthoracic shocks. METHODS: Seventeen anaesthetized swine were examined, with 11 undergoing five synchronized transthoracic shocks (200J)...
2016: PloS One
Ruoxi Zhang, Shuyuan Chen, Hui Zhang, Wei Wang, Jianpang Xing, Yu Wang, Bo Yu, Jingbo Hou
This retrospective study aimed to investigate the predictive value of biomarkers for in-hospital mortality of patients with Stanford type A acute aortic dissection (AAD).AAD is a life-threatening disease with an incidence of about 2.6-3.6 cases per 100,000/year.A total of 67 consecutive Stanford type A AAD patients admitted to hospital were divided into a deceased group and survival group. The baseline information of the patients between two groups was systematically compared, followed by examination of the electrocardiograms (ECG)...
September 28, 2016: International Heart Journal
Didier Maillet, Fanny Matharan, Hervé Le Clésiau, Olivier Bailon, Karine Pérès, Hélène Amieva, Catherine Belin
OBJECTIVE: To validate the TNI-93 test in illiterate and low-educated subjects by setting cutoff scores to discriminate non-demented and demented subjects in a clinical setting (CESILL) and verifying the adequacy of these cutoff scores in a population-based study (AMI cohort). METHOD: We used two study samples. First, a clinical setting (CESILL) comprising normal elderly participants and demented patients, mostly multicultural, low educated, or illiterate, was used to compute the cutoff scores of TNI-93 for the detection of dementia...
September 1, 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
Suhas S Vyavhare, David R Gealy, Michael O Way, Rodante E Tabien, Rebecca A Pearson
The rice water weevil, Lissorhoptrus oryzophilus Kuschel, is the most important insect pest of rice in the United States. Management of L. oryzophilus mainly depends upon the use of insecticides due to the lack of effective alternative management tactics. A 3-yr field study was conducted to determine if difference exists among rice genotypes and cultivars of inbred tropical japonica subspecies commercially grown in the southern United States [Cocodrie (PI 606331), CL171, and CL151 (PI 654463)] and the germplasm lines of indica subspecies adapted to tropical climates of Asia [WC 4644 (PI 312777), TNI (PI 495830), Rondo (PI 615022), 4612 (PI 615039), TeQing (PI 536047), and 4593 (PI 615031)] for resistance to L...
August 30, 2016: Environmental Entomology
Jianhui Xiong, Maxime Déraspe, Naeem Iqbal, Jennifer Ma, Frances B Jamieson, Jessica Wasserscheid, Ken Dewar, Peter M Hawkey, Paul H Roy
Sequencing of the blaIMP-4 -carrying C. freundii B38 using PacBio SMRT technique revealed that the genome contained a chromosome of 5,134,500 bp, and three plasmids, pOZ172 (127,005 bp), pOZ181 (277,592 bp), and pOZ182 (18,467 bp). Plasmid pOZ172 was identified as IncFIIY, like pP10164-NDM and pNDM-EcGN174. It carries a class 1 integron with four cassettes: blaIMP-4-qacG2-aacA4-aphA15, and a complete hybrid tni module (tniR-tniQ-tniB-tniA). The recombination of tniR from Tn402 (identical) with tniQBA (99%) from Tn5053 occurred within the res site of Tn402/5053...
August 29, 2016: Antimicrobial Agents and Chemotherapy
Marta Fernández-Nogales, María Santos-Galindo, Ivó H Hernández, Jorge R Cabrera, José J Lucas
Huntington's disease (HD) is caused by a CAG-repeat encoding a polyglutamine (polyQ) tract in the huntingtin protein. There is plenty of evidence of polyQ-driven toxicity. However, CAG repeat RNA-driven alteration of splicing has recently been proposed in analogy to CUG-repeat diseases. Here we review the reported alteration of the CAG-repeat associated splicing factor SRSF6 in brains of HD patients and mouse models and how this correlates with altered splicing of, at least, two microtubule-associated proteins in HD, namely MAPT (tau) and MAP2...
August 16, 2016: Brain Pathology
Xuan Wang, Xiao-Lei Xu, Xi-Ming Li, Ru Zhao, Xu Yang, Hong-Liang Cong
OBJECTIVE: To explore diagnostic performance of mean platelet volume (MPV) for acute myocardial infarction (AMI) of patients with acute coronary syndrome (ACS). METHODS: We compared MPV and other indicators of 1,524 patients with ACS. Among them, 880 patients were diagnosed with AMI, 344 were diagnosed with unstable angina pectoris and 350 were the control group. RESULTS: The level of MPV in ACS group was significantly higher than the control group (9...
August 2016: American Journal of the Medical Sciences
Dylan Johnson, Mohit C Mathur, Tomoyoshi Kobayashi, Joseph M Chalovich
The R146G mutation of troponin I (TnI) is associated with hypertrophic cardiomyopathy in humans. Earlier data pointed to stabilization of the intermediate, C state, of actin-tropomyosin-troponin by this mutant. Because cardiac disorders appear to be linked to changes in regulated actin distributions, we determined the extent to which the R146G TnI mutant alters the distribution of states at low and high Ca(2+) concentrations. We show, from measurements of the kcat for actin-activated ATPase activity at saturating Ca(2+) concentrations, that R146G TnI reduced the population of the active, M, state to 25% of the wild-type level...
August 16, 2016: Biochemistry
Magnus Nakrem Lyngbakken, Helge Røsjø, Oddgeir L Holmen, Ståle Nygård, Håvard Dalen, Kristian Hveem, Torbjørn Omland
Gender is an important determinant of cardiovascular risk, and men generally develop cardiovascular disease earlier than women. Increased levels of high-sensitivity cardiac troponin I (hs-TnI) have been shown to be predictive of cardiovascular death, with stronger effects in women. However, it remains unclear whether the stronger association between hs-TnI and cardiovascular death in women is based on the ability of hs-TnI to predict myocardial infarction (MI) or heart failure (HF). Accordingly, we aimed to assess the influence of gender on the association between levels of hs-TnI and incident MI and HF...
September 15, 2016: American Journal of Cardiology
Liang Liu, Xian Jin, Zhong'e Zhou, Chengxing Shen
BACKGROUND: Most mesenchymal stem cells (MSCs) die shortly after transplantation into a myocardial infarcted area. Dead MSCs (dMSCs) are phagocytized by macrophages (pMΦ) in vivo and in vitro; however, the effects of pMΦ on cardiac stem cells (CSCs) remain unknown. METHODS: MSCs, CSCs, and macrophages were obtained from bone marrow, hearts, and peritoneal cavity of mice, respectively. dMSCs were harvested after hypoxia for 24 h, and incubated with macrophages (2:1) for another 2 days with or without lipopolysaccharide (LPS, 50 ng/mL) and sorted by flow cytometry to obtain pMΦ...
2016: International Journal of Molecular Sciences
Daniel A Paterson, Min Gao, Young-Ki Kim, Afsoon Jamali, Kirsten L Finley, Beatriz Robles-Hernández, Sergio Diez-Berart, Josep Salud, M Rosario de la Fuente, Bakir A Timimi, Herbert Zimmermann, Cristina Greco, Alberta Ferrarini, John M D Storey, David O López, Oleg D Lavrentovich, Geoffrey R Luckhurst, Corrie T Imrie
The synthesis and characterisation of the nonsymmetric liquid crystal dimer, 1-(4-cyanobiphenyl-4'-yloxy)-6-(4-cyanobiphenyl-4'-yl)hexane (CB6OCB) is reported. An enantiotropic nematic (N)-twist-bend nematic (NTB) phase transition is observed at 109 °C and a nematic-isotropic phase transition at 153 °C. The NTB phase assignment has been confirmed using polarised light microscopy, freeze fracture transmission electron microscopy (FFTEM), (2)H-NMR spectroscopy, and X-ray diffraction. The effective molecular length in both the NTB and N phases indicates a locally intercalated arrangement of the molecules, and the helicoidal pitch length in the NTB phase is estimated to be 8...
August 10, 2016: Soft Matter
Sergio Casas-Tintó, Antonio Maraver, Manuel Serrano, Alberto Ferrús
Human tumors of various tissue origins show an intriguing over-expression of genes not considered oncogenes, such as that encoding Troponin-I (TnI), a well-known muscle protein. Out of the three TnI genes known in humans, the slow form, TNNI1, is affected the most. Drosophila has only one TnI gene, wupA. Here, we studied excess- and loss-of function of wupA in Drosophila, and assayed TNNI1 down regulation in human tumors growing in mice. Drosophila TnI excess-of-function increases proliferation and potentiates oncogenic mutations in Ras, Notch and Lgl genes...
July 15, 2016: Oncotarget
Johannes Tobias Neumann, Sebastian Ewen, Kai Mortensen, Holger Nef, Tanja Zeller, Francisco Ojeda, Karsten Sydow, Felix Mahfoud, Michael Böhm, Christian Hamm, Oliver Dörr, Stefan Blankenberg
AIM: This multicenter study investigated the effect of renal denervation therapy (RDN) on the heart failure related biomarkers NT-proBNP, ST-2, galectin-3 and hs-TnI. PATIENTS & METHODS: We included 157 patients with resistant hypertension undergoing RDN. Blood sampling was performed before and 6 months after RDN. RESULTS: Six months after RDN systolic blood pressure (BP) was reduced by 24 mmHg. Biomarker concentrations were not changed after RDN, except a small increase of hs-TnI by 0...
August 2016: Biomarkers in Medicine
M S Herrera, C E Medina-Solís, L Avila-Burgos, N L Robles-Bermeo, E Lara-Carrillo, S E Lucas-Rincón, M L Márquez-Corona, J J Villalobos-Rodelo
Objective: To determine the treatment needs for dental caries and the restorative care index on permanent dentition of Nicaraguan children. Subjects and Methods: In a cross-sectional study, 1379 schoolchildren aged 6 to 12 years old were evaluated clinically to determine the decay, missing and filled teeth (DMFT) index and to calculate the need for dental caries (TNI) and care indices (CI). Sociodemographic, socio-economic and behavioural data were collected using questionnaires...
December 7, 2015: West Indian Medical Journal
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