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| Jiao,Z.Y.; Li,Y.B.; Mao,J.; Liu,X.Y.; Yang,X.C.; Tan,C.; Chu,J.M.; Liu,X.P.. |
| Our objective is to evaluate the accuracy of three algorithms in differentiating the origins of outflow tract ventricular arrhythmias (OTVAs). This study involved 110 consecutive patients with OTVAs for whom a standard 12-lead surface electrocardiogram (ECG) showed typical left bundle branch block morphology with an inferior axis. All the ECG tracings were retrospectively analyzed using the following three recently published ECG algorithms: 1) the transitional zone (TZ) index, 2) the V2 transition ratio, and 3) V2 R wave duration and R/S wave amplitude indices. Considering all patients, the V2 transition ratio had the highest sensitivity (92.3%), while the R wave duration and R/S wave amplitude indices in V2 had the highest specificity (93.9%). The latter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Premature ventricular contraction; Ventricular tachycardia; Electrocardiogram; Radiofrequency catheter ablation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000500605 |
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| Rao,F.; Deng,C.Y.; Zhang,Q.H.; Xue,Y.M.; Xiao,D.Z.; Kuang,S.J.; Lin,Q.X.; Shan,Z.X.; Liu,X.Y.; Zhu,J.N.; Yu,X.Y.; Wu,S.L.. |
| Macrophage migration inhibitory factor (MIF), a pleiotropic cytokine, plays an important role in the pathogenesis of atrial fibrillation; however, the upstream regulation of MIF in atrial myocytes remains unclear. In the present study, we investigated whether and how MIF is regulated in response to the renin-angiotensin system and oxidative stress in atrium myocytes (HL-1 cells). MIF protein and mRNA levels in HL-1 cells were assayed using immunofluorescence, real-time PCR, and Western blot. The result indicated that MIF was expressed in the cytoplasm of HL-1 cells. Hydrogen peroxide (H2O2), but not angiotensin II, stimulated MIF expression in HL-1 cells. H2O2-induced MIF protein and gene levels increased in a dose-dependent manner and were completely... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macrophage migration inhibitory factor; HL-1 cells; Hydrogen peroxide; Atrial fibrillation; Protein kinases. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000900746 |
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| Zhong,P.; Sun,D.M.; Wu,D.H.; Li,T.M.; Liu,X.Y.; Liu,H.Y.. |
| We evaluated serum total bilirubin levels as a predictor for metabolic syndrome (MetS) and investigated the relationship between serum total bilirubin levels and MetS prevalence. This cross-sectional study included 1728 participants over 65 years of age from Eastern China. Anthropometric data, lifestyle information, and previous medical history were collected. We then measured serum levels of fasting blood-glucose, total cholesterol, triglycerides, and total bilirubin, as well as alanine aminotransferase activity. The prevalence of MetS and each of its individual component were calculated per quartile of total bilirubin level. Logistic regression was used to assess the correlation between serum total bilirubin levels and MetS. Total bilirubin level in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Total bilirubin; Metabolic syndrome; Oxidative stress. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000200701 |
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