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1.
Life Sci ; 242: 117239, 2020 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-31901444

RESUMO

AIMS: Reactive oxygen species (ROS) and pro-inflammatory cytokines play a critical role in organ damage induced by ethanol consumption. Interleukin (IL)-10 maintain tissue homeostasis through restriction of excessive inflammatory responses and inhibition of ROS generation. These responses limit unnecessary tissue damage in the cardiorenal system. We hypothesized that IL-10 would limit the deleterious effects induced by ethanol consumption in the cardiorenal system. MATERIALS AND METHODS: Male C57BL/6J wild-type (WT) or IL10-deficient mice (IL-10-/-) were treated with ethanol (20% v/v) for 6 weeks. KEY FINDINGS: IL-10 deficiency was associated with an increased mortality rate. Ethanol consumption decreased plasma levels of IL-10 in WT mice. Increased levels of IL-6 were detected in the aorta from IL-10-deficient mice, but not WT mice. No alterations in the levels of urea, creatinine, sodium, potassium or creatine kinase (CK)-MB were found after treatment with ethanol. Augmented concentration of thiobarbituric acid reactive substances (TBARS) was found in the left ventricle (LV) of IL-10-deficient mice, but not WT mice. Increased levels of superoxide anion (O2-) were found in the renal cortex of both WT and IL-10-deficient mice. Renal cortex from WT mice chronically treated with ethanol showed decreased levels of H2O2. No changes in the expression of Nox1, Nox4 or catalase were found in the renal cortex from ethanol-treated mice. SIGNIFICANCE: IL-10 limited the production of ROS and the synthesis of pro-inflammatory cytokines induced by ethanol in the cardiorenal system. These findings provided novel evidence that IL-10 counteracted the initial mechanisms whereby ethanol induces its cardiorenal damages.


Assuntos
Etanol/efeitos adversos , Coração/efeitos dos fármacos , Interleucina-10/metabolismo , Rim/efeitos dos fármacos , Lesão Renal Aguda/induzido quimicamente , Animais , Western Blotting , Creatina Quinase Forma MB/sangue , Creatinina/sangue , Interleucina-10/sangue , Interleucina-10/fisiologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Potássio/sangue , Sódio/sangue , Ureia/sangue
2.
Medicine (Baltimore) ; 98(43): e17023, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31651834

RESUMO

Stanford type A aortic dissection (AD) is a lethal disease requiring surgery. Evidence regarding the prognostic ability of perioperative myocardiac markers on long-term outcome is limited.In this cohort study, we measured perioperative myocardiac markers level in 583 surgical patients with type A AD in our hospital between 2015 and 2017. All patients were followed up after surgery for a median period of 864 days to determine short- and long-term mortality.About one-fifth of patients has a positive preoperative myocardial markers, which was increased significantly after operation. Increase log10 post-creatine kinase MB isoenzyme (CK-MB) (hazard ratio [HR], 4.64; 95% confidence interval [CI] 1.89-11.43; P = .0008), log10 post-TnI (HR, 3.11; 95% CI 1.56-6.21; P = .0013), log10 post-Mb (HR, 3.00; 95% CI 1.40-6.43; P = .0048), log10 pre-CK-MB (HR,1.82; 95% CI 1.03-3.21; P = .0377), and upper tertile of post-CK-MB (HR,1.52; 95% CI 1.05-2.20; P = .0261) were the independent risk factor for 30 days mortality adjusted for potential confounders. None of cardiac markers was significantly associated with long-term outcome independent of other factors.Perioperative myocardiac predicts early outcome in type A AD patients undergoing surgery. Increasing perioperative myocardial markers do not appear to be a predictor for long-term all-cause mortality.


Assuntos
Aneurisma Dissecante/sangue , Aneurisma Dissecante/mortalidade , Creatina Quinase Forma MB/sangue , Troponina I/sangue , Adulto , Aneurisma Dissecante/cirurgia , Biomarcadores/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Valor Preditivo dos Testes , Período Pré-Operatório , Prognóstico , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento
3.
Klin Lab Diagn ; 64(9): 525, 2019.
Artigo em Russo | MEDLINE | ID: mdl-31610103

RESUMO

The multimarker approach more accurately reflects the key mechanisms of pathogenesis and biochemical interactions, compared with the use of individual indicators. It is a reason of steadily growing interest in the development and use of various combinations of biomarkers in assessing the prognosis and stratification of cardiovascular risk in patients with a wide range of cardiological profiles. Multiplex analysis technology on the Luminex platform is the best tool for the simultaneous quantitative determination of a complex of different biomarkers in a single. Using the MILLIPLEX® MAP Human Cardiovascular Disease Panel, a multiplefold increase of FABP, Troponin I, CK-MB, BNP, Nt-proBNP, BNP in the first 24 hours after MI, decreasing in 6 months with a high degree of confidence, was shown. There were no differences in the content of LIGHT between the stages of observation, as well as in comparison with the reference range. The content of LIGHT on the first day of MI showed strong positive associations with markers of damage of myocardium and myocardial stress. On the first day of MI, a significant increase in the content of ESM-1, decreasing in 6 months after MI to the reference values was found. Strong positive associations of ESM-1 with Troponin I and BNP levels were established. A significant increase of proinflammatory cytokine OSM on the first day of MI, decreasing in the late post-infarction period to reference values was shown. Correlation analysis revealed direct relationships of OSM with Troponin I, CK-MB, Nt-proBNP and BNP. The use of the MILLIPLEX® MAP Human Cardiovascular Disease Panel 1 diagnostic multimarker panel allowed for the simultaneous quantitative analysis of 11 biochemical parameters, associated with inflammation, atherogenesis, endothelial dysfunction, ischemia and myocardial necrosis. The results can be used to improve the effectiveness of complex diagnostics in patients with primary myocardial infarction with ST segment elevation.


Assuntos
Biomarcadores/sangue , Infarto do Miocárdio/diagnóstico , Creatina Quinase Forma MB/sangue , Proteínas de Ligação a Ácido Graxo/sangue , Humanos , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Troponina I/sangue
4.
Int J Med Sci ; 16(8): 1171-1179, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31523180

RESUMO

AIM: To investigate the association between plasma S100A1 level and ST-segment elevation myocardial infarction (STEMI) and potential significance of S100A1 in post-infarction cardiac function. METHODS: We examined the plasma S100A1 level in 207 STEMI patients (STEMI group) and 217 clinically healthy subjects for routine physical examination without a history of coronary artery disease (Control group). Baseline characteristics and concentrations of relevant biomarkers were compared. The relationship between S100A1 and other plasma biomarkers was detected using correlation analysis. The predictive role of S100A1 on occurrence of STEMI was then assessed using multivariate ordinal regression model analysis after adjusting for other covariates. RESULTS: The plasma S100A1 level was found to be significantly higher (P<0.001) in STEMI group (3197.7±1576.0 pg/mL) than in Control (1423.5±1315.5 pg/mL) group. Furthermore, the correlation analysis demonstrated plasma S100A1 level was significantly associated correlated with hypersensitive cardiac troponin T (hs-cTnT) (r = 0.32; P < 0.001), creatine kinase MB (CK-MB) (r = 0.42, P < 0.001), left ventricular eject fraction (LVEF) (r = -0.12, P = 0.01), N-terminal prohormone of brain natriuretic peptide (NT-proBNP) (r = 0.61; P < 0.001) and hypersensitive C reactive protein (hs-CRP) (r = 0.38; P < 0.001). Moreover, the enrolled subjects who with a S100A1 concentration ≤ 1965.9 pg/mL presented significantly better cardiac function than the rest population. Multivariate Logistic regression analysis revealed that S100A1 was an independent predictor for STEMI patients (OR: 0.671, 95% CI 0.500-0.891, P<0.001). In addition, higher S100A1 concentration (> 1965.9 pg/mL) significantly increased the risk of STEMI as compared with the lower level (OR: 6.925; 95% CI: 4.15-11.375; P<0.001). CONCLUSION: These results indicated that the elevated plasma S100A1 level is an important predictor of STEMI in combination with several biomarkers and also potentially reflects the cardiac function following the acute coronary ischemia.


Assuntos
Proteínas S100/sangue , Infarto do Miocárdio com Supradesnível do Segmento ST/sangue , Infarto do Miocárdio com Supradesnível do Segmento ST/fisiopatologia , Síndrome Coronariana Aguda/sangue , Síndrome Coronariana Aguda/fisiopatologia , Idoso , Biomarcadores/sangue , Proteína C-Reativa/análise , Estudos de Casos e Controles , Creatina Quinase Forma MB/sangue , Ecocardiografia Doppler , Feminino , Testes de Função Cardíaca , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Estudos Retrospectivos , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico por imagem , Troponina T/sangue
5.
Forensic Sci Med Pathol ; 15(4): 528-535, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31471870

RESUMO

Cardiac disease is the most common cause of sudden death in Western countries. It is known that high-sensitivity troponin I (hs-cTnI), widely used for detection of myocardial injury, is a sensitive biochemical marker. B-type natriuretic peptide (BNP) is a reliable tool for diagnosing heart failure, and for establishing prognosis or disease severity. We aimed to evaluate the diagnostic efficacy of the postmortem determination of BNP in serum alone or in addition to other biomarkers, such as hs-cTnI and MB isoenzyme of creatine kinase (CK-MB), to ascertain whether its determination improves the post-mortem diagnosis of heart failure-associated causes of death. This study involved 133 cadavers with a mean age of 58.2 (± 17.6) years and a mean postmortem interval of 12.8 (±6.6) h. Cases were assigned into two diagnostic groups, according to the cause of death: cardiac deaths (N = 62) and control (N = 71). In the cardiac group, two categories were established according to morphological features of the heart: 'ischemic deaths' (N = 39), and 'congestive heart' (n = 23). Both hs-cTnI and BNP were useful in diagnosing cardiac deaths, whereas CK-MB did not have any diagnostic relevance. hs-cTnI is higher in cases which acute ischemia as the principal pathology, while the presence of high BNP values is significantly related with chronic cardiac situations with significant ventricular overload. Our findings show that postmortem determination of hs-cTnI and BNP provides valuable information; hs-cTnI is useful for diagnosis of cardiac deaths, mainly with ischemic implications, and BNP gave better results for the diagnosis of congestive heart failure.


Assuntos
Morte Súbita Cardíaca/etiologia , Insuficiência Cardíaca/diagnóstico , Isquemia Miocárdica/diagnóstico , Peptídeo Natriurético Encefálico/sangue , Troponina I/sangue , Biomarcadores/sangue , Estudos de Casos e Controles , Creatina Quinase Forma MB/sangue , Análise Discriminante , Feminino , Patologia Legal , Insuficiência Cardíaca/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/sangue , Mudanças Depois da Morte
6.
Acta Clin Croat ; 58(1): 95-102, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31363330

RESUMO

The aim of this study was to assess the efficacy of high-sensitivity C-reactive protein (hsCRP), cardiac troponin T (cTnT) and creatine kinase (CK) as long-term predictors of reduced systolic function in patients with acute ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) with complete revascularization. This prospective study evaluated consecutive patients with acute STEMI who had normal left ventricular ejection fraction (LVEF ≥50%) at admission with single-vessel disease and underwent complete revascularization. Blood samples were collected from admission to day 7. The primary endpoint was reduction of LVEF <50% after 12 months. The study included 47 patients, median age 59±10 years, 74.5% of them men. Patients who developed systolic dysfunction (LVEF <50%) had significantly higher mean values of cTnT after 24 hours (5.11 vs. 2.82 µg/L, p=0.010) and peak values of CK (3375.5 vs. 1865 U/L, p=0.008). There was no significant relation between hsCRP and development of reduced LVEF (p=0.541). In conclusion, cTnT and CK could serve as long-term predictors of reduced left ventricular systolic function (<50%) in acute STEMI patients with normal systolic function at admission, single-vessel coronary disease and complete revascularization during primary PCI.


Assuntos
Proteína C-Reativa/análise , Creatina Quinase Forma MB/sangue , Infarto do Miocárdio com Supradesnível do Segmento ST/metabolismo , Troponina T/sangue , Idoso , Biomarcadores/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Estudos Prospectivos , Medição de Risco , Fatores de Tempo , Função Ventricular Esquerda
8.
Biomed Khim ; 65(3): 231-238, 2019 Apr.
Artigo em Russo | MEDLINE | ID: mdl-31258147

RESUMO

The goal of this study was to examine effects of a novel galanin receptor agonist GalR1-3 [bAla14, His15]-galanine 2-15 (G), obtained by automatic solid-phase synthesis, on the metabolic state of the area at risk and the size of acute myocardial infarction (MI) in rats in vivo and evaluate its toxicity in BALB /c mice. In anesthetized rats, regional ischemia was simulated by coronary artery occlusion and then coronary blood flow was restored. The peptide G was administered intravenously (i.v.) with a bolus after a period of regional ischemia in the dose range of 0.25-3.0 mg/kg. The sizes of MI and the activities of creatine kinase-MB (СK-MB) and lactate dehydrogenase (LDH) in blood plasma were estimated. The effect of administration of the optimal dose of G (1.0 mg/kg) on myocardial content of adenine nucleotides (AN), phosphocreatine (PCr), creatine (Cr) and lactate was studied. I.v. administration of G to rats at a dose of 1.0 mg/kg slightly affected hemodynamic parameters, but reduced MI size by 40% and decreased plasma LDH and CK-MB activity by the end of reperfusion compared to control. These effects were accompanied by a significant improvement in energy state of area at risk (AAR) - an increase in myocardial content of ATP, åAN, PCr and åCr, and combined with a decrease in myocardial lactate level compared with the control. Toxicity of peptide G was studied with a single intraperitoneal injection of 0.5-3.0% solution of the peptide substance to mice. The absence of signs of intoxication and death of animals after G injection in the maximum possible dose did not allow determining the value of the average lethal dose. The results indicate therapeutic potential of the peptide G for preventing myocardial ischemia and reperfusion injury and feasibility for further study of its pharmacological properties and mechanisms of action.


Assuntos
Infarto do Miocárdio/patologia , Peptídeos/farmacologia , Receptores de Galanina/agonistas , Animais , Creatina Quinase Forma MB/sangue , Modelos Animais de Doenças , L-Lactato Desidrogenase/sangue , Camundongos , Camundongos Endogâmicos BALB C , Infarto do Miocárdio/tratamento farmacológico , Traumatismo por Reperfusão Miocárdica/tratamento farmacológico , Traumatismo por Reperfusão Miocárdica/patologia , Ratos
9.
J Coll Physicians Surg Pak ; 29(7): 644-648, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31253216

RESUMO

OBJECTIVE: To compare effect of proximal femoral nail antirotation (PFNA) and dynamic hip screw (DHS) internal fixation on serum inflammatory mediators (CRP, IL-1, IL-6 and TNF-α), myocardial injury markers (cTnT, CK-MB), and Myo-heart failure marker (BNP) in elderly patients with intertrochanteric fractures. STUDY DESIGN: Experimental study. PLACE AND DURATION OF STUDY: Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, China, from January 2016 to February 2018. METHODOLOGY: A total of 114 patients with intertrochanteric fractures were randomly divided into Group A and Group B, with 57 cases in each group. Group A was treated with PFNA and Group B with DHS internal fixation. Serum CRP, IL-1, IL-6, TNF-α, cTnT, CK-MB, Myo, BNP and surgical indication were compared. RESULTS: Operation time and weight-bearing time in Group A were shorter than Group B (both p<0.001). Intraoperative blood loss and postoperative drainage volume in Group A were lower than Group B (both p<0.001). On the 7ᵗʰ day after surgery, serum CRP, IL-1, IL-6, TNF-α, cTnT, CK-MB, Myo and BNP in Group A were lower than Group B (all p<0.001). CONCLUSION: Compared with DHS, PFNA effectively reduced serum inflammatory mediators with less damage to cardiac function and myocardium in elderly patients with intertrochanteric fractures.


Assuntos
Pinos Ortopédicos , Parafusos Ósseos , Fixação Interna de Fraturas/instrumentação , Fraturas do Quadril/sangue , Fraturas do Quadril/cirurgia , Fatores Etários , Idoso , Biomarcadores/sangue , Proteína C-Reativa/metabolismo , Creatina Quinase Forma MB/sangue , Feminino , Humanos , Interleucina-1/sangue , Interleucina-6/sangue , Masculino , Peptídeo Natriurético Encefálico/sangue , Troponina T/sangue , Fator de Necrose Tumoral alfa/sangue
10.
Acta Cir Bras ; 34(5): e201900505, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31166461

RESUMO

PURPOSE: To evaluate the cardioprotective response of the pharmacological modulation of ß-adrenergic receptors (ß-AR) in animal model of cardiac ischemia and reperfusion (CIR), in spontaneously hypertensive (SHR) and normotensive (NWR) rats. METHODS: CIR was induced by the occlusion of left anterior descendent coronary artery (10 min) and reperfusion (75 min). The SHR was treated with ß-AR antagonist atenolol (AT, 10 mg/kg, IV) 5 min before CIR, and NWR were treated with ß-AR agonist isoproterenol (ISO, 0.5 mg/kg, IV) 5 min before CIR. RESULTS: The treatment with AT increased the incidence of VA, AVB and LET in SHR, suggesting that spontaneous cardioprotection in hypertensive animals was abolished by blockade of ß-AR. In contrast, the treatment with ISO significantly reduced the incidence of ventricular arrhythmia, atrioventricular blockade and lethality in NWR (30%, 20% and 20%, respectively), suggesting that the activation of ß-AR stimulate cardioprotection in normotensive animals. Serum CK-MB were higher in SHR/CIR and NWR/CIR compared to respective SHAM group (not altered by treatment with AT or ISO). CONCLUSION: The pharmacological modulation of ß-AR could be a new cardioprotective strategy for the therapy of myocardial dysfunctions induced by CIR related to cardiac surgery and cardiovascular diseases.


Assuntos
Antagonistas de Receptores Adrenérgicos beta 1/farmacologia , Agonistas Adrenérgicos beta/farmacologia , Atenolol/farmacologia , Cardiotônicos/farmacologia , Isoproterenol/farmacologia , Traumatismo por Reperfusão Miocárdica/tratamento farmacológico , Receptores Adrenérgicos beta/efeitos dos fármacos , Animais , Biomarcadores/sangue , Pressão Sanguínea/efeitos dos fármacos , Creatina Quinase Forma MB/sangue , Testes de Função Cardíaca , Masculino , Traumatismo por Reperfusão Miocárdica/sangue , Traumatismo por Reperfusão Miocárdica/fisiopatologia , Ratos Endogâmicos SHR , Reprodutibilidade dos Testes , Fatores de Tempo , Resultado do Tratamento
11.
J Card Surg ; 34(8): 670-675, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31212365

RESUMO

OBJECTIVES: Atorvastatin can decrease cardiac injury after coronary artery bypass graft (CABG) surgery. We compared the effects of 80 and 40 mg of atorvastatin per day on the levels of cardiac troponin T (cTnT) and creatine kinase-MB (CK-MB) after an isolated CABG. METHODS: This randomized single-blind parallel clinical trial enrolled 125 patients (mean age = 60.59 ± 8.37 years) who were candidates for elective isolated CABG at the Tehran Heart Center between May 2017 and December 2017. Patients were randomly allocated into two groups to receive either 80 mg (n = 62) or 40 mg of atorvastatin (n = 63) per day, 5 days before surgery. The levels of cTnT and CK-MB, used as myocardial injury markers, were measured at baseline and then at 8 and 24 hours after CABG. RESULTS: The levels of CK-MB and cTnT at baseline and at 8 and 24 hours following CABG were not significantly different between the two groups. Our repeated measures analysis of variance showed that the levels of CK-MB and cTnT increased significantly over time (P < .001). No significant interaction was observed between time and the atorvastatin dosage on the levels of either CK-MB (P = .159) or cTnT (P = .646). In addition, the between-group effects were not significant for CK-MB (P = .632) and cTnT (P = .126). CONCLUSION: The higher dose of atorvastatin (80 mg) did not exert a more protective effect than the standard dose of atorvastatin (40 mg) after CABG surgery.


Assuntos
Atorvastatina/administração & dosagem , Cardiomiopatias/diagnóstico , Cardiomiopatias/prevenção & controle , Ponte de Artéria Coronária , Doença das Coronárias/cirurgia , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/prevenção & controle , Idoso , Biomarcadores/sangue , Creatina Quinase Forma MB/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Método Simples-Cego , Fatores de Tempo , Troponina T/sangue
12.
BMC Pharmacol Toxicol ; 20(1): 23, 2019 05 03.
Artigo em Inglês | MEDLINE | ID: mdl-31053170

RESUMO

BACKGROUND: The activation of neurohumoral compensatory mechanisms is a common physiological phenomenon in heart failure in order to make up for a failing heart, which will usually have a deteriorating effect on overall health condition. Many medications, such as neprilysin and angiotensin inhibitors, have recently been introduced to remediate neurohumoral changes. This study was conducted to evaluate the efficacy of the sacubitril-aliskiren combination versus the sacubitril-ramipril combination in the treatment of neurohumoral changes in rats with experimentally induced heart failure. METHOD: Thirty Wister rats were randomly assigned into five groups each of six rats, the first group was the control group. Intraperitoneal isoprenaline injections of 5 mg/kg/day for 1 week were used to induce experimental models of heart failure in rats of the rest of experimental groups. The second group served as a positive control. Rats in the third, fourth, and fifth groups received oral daily dose of sacubitril 30 mg/kg/day, sacubitril-aliskiren 30,10 mg/kg/day, and sacubitril-ramipril 30/10 mg/kg/day respectively, for 2 weeks. RESULTS: Induction of heart failure in rats has significantly increased circulating NT-proBNP (980 ± 116.71 pg/ml), MMP9 (15.85 ± 0.57 ng/ml), troponin-I (3.09 ± 0.147 ng/ml), CK-MB (31.55 ± 1.69 ng/ml), renin (736 ± 45.8 pg/ml), urea (52.1 ± 1.57 mg/dl), and creatinine (0.92 ± 0.04 mg/dl). Significant decreases in glomerular filtration rate (7.031 ± 1.6 ml/hr./kg), urine flow (0.2761 ± 0.06 ml/h/kg), total solute excretion (0.11 ± 0.03 meq/m), and mean blood pressure (83.5 ± 2.6 mm hg) were seen in rats with heart failure. Rats treated with sacubitril combined with aliskiren or ramipril showed a statistically significant reduction of NT-proBNP, MMP9, troponin serum urea, and serum creatinine. Sacubitril-aliskiren or sacubitril-ramipril administration produced a significant increase in renin plasma level, total solute excretion, urine flow, and glomerular filtration rate. CONCLUSION: Sacubitril in combination with aliskiren or with ramipril effectively reduced plasma cardiac biomarkers, such as CK-MB, MMP9, and NT-proBNP, in rats with heart failure. Both combinations showed significant remediation of renal function through increasing GFR, urine flow, and total solute excretion, as well as reducing plasma level of renin. Net results revealed that the sacubitril-aliskiren combination has similar remediating effects on neurohumoral changes compared to the sacubitril-ramipril combination.


Assuntos
Amidas/farmacologia , Aminobutiratos/farmacologia , Antagonistas de Receptores de Angiotensina/farmacologia , Creatina Quinase Forma MB/sangue , Fumaratos/farmacologia , Insuficiência Cardíaca/sangue , Metaloproteinase 9 da Matriz/sangue , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Ramipril/farmacologia , Tetrazóis/farmacologia , Angiotensinas/antagonistas & inibidores , Animais , Biomarcadores/sangue , Pressão Sanguínea/efeitos dos fármacos , Combinação de Medicamentos , Feminino , Insuficiência Cardíaca/fisiopatologia , Frequência Cardíaca/efeitos dos fármacos , Rim/efeitos dos fármacos , Rim/fisiologia , Neprilisina/antagonistas & inibidores , Ratos Wistar , Renina/antagonistas & inibidores , Renina/sangue , Troponina I/sangue
13.
Niger J Clin Pract ; 22(5): 598-602, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31089012

RESUMO

Objective: The aim of this study was to determine the effectiveness of hematological parameters measured at the moment of admission to the emergency room in predicting in-hospital mortality and to determine cut-off values of strongly predictive values. Subjects and Methods: The study began with approval of the ethics committee. In total, 1,929 patients over 18 years of age, whose date could be obtained, were included in the study. From the hemogram parameters, white blood cells (WBC), red cell distribution width, mean platelet volume, and ratio of neutrophils to lymphocytes (NLR) values were determined and recorded. CK-MB and high-sensitive Troponin T values were recorded as cardiac markers. For statistical analysis, "SPSS for Windows Version 21" package program was used. Findings: About 71.7% (n = 1384) of the patients were male and 28.3% (n = 545) of the patients were female. About 92.5% of the patients (n = 1785) were discharged from the hospital, whereas the remaining 144 patients (7.5%) were exitus in the hospital. When the efficacy of hematological parameters and cardiac markers in predicting mortality was examined by receiver operating charecteristics analysis, NLR was found to be the strongest predictor (area under the curve [AUC], 0.772, standard deviation [SD] = 0.022, 95% confidence interval [CI]). It was found that the WBC value came in second place after NLR as a strong predictor of mortality (AUC, 0.749, SD = 0.024, % 95 CI). Conclusion: The use of predictors for the prediction of mortality for ST elevation myocardial infarction patients is of great importance for faster implementation of treatment modalities. We found that WBC and especially NLR values obtained with a simple method can be used as powerful predictors.


Assuntos
Mortalidade Hospitalar , Linfócitos , Neutrófilos , Infarto do Miocárdio com Supradesnível do Segmento ST/sangue , Infarto do Miocárdio com Supradesnível do Segmento ST/mortalidade , Idoso , Área Sob a Curva , Creatina Quinase Forma MB/sangue , Índices de Eritrócitos , Feminino , Humanos , Contagem de Linfócitos , Masculino , Volume Plaquetário Médio , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Curva ROC , Troponina T/sangue
15.
Med Sci Monit ; 25: 2561-2566, 2019 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-30956276

RESUMO

BACKGROUND This study investigated the changes in plasma brain natriuretic peptide (BNP) and cardiac troponin I (cTnI) levels in pediatric patients with sepsis, and explored their relationships with serum inflammatory factors in pediatric patients. MATERIAL AND METHODS A total of 120 pediatric patients with sepsis admitted to and treated at our hospital from 2013 to 2017 were divided into 4 groups: a systemic inflammatory response syndrome (SIRS) group (n=28), a sepsis group (n=35), a severe sepsis group (n=27), and a septic shock group (n=30). Plasma BNP, cTnI, and creatine kinase-MB (CK-MB) levels in pediatric patients in the 4 groups were measured, and the correlations of BNP and cTnI with plasma inflammatory factors C-reactive protein (CRP) and tumor necrosis factor-alpha (TNF-alpha) were investigated. RESULTS The plasma BNP and cTnI levels in pediatric patients with sepsis were significantly higher than those in the SIRS group (p<0.05). After hospitalization and treatment, levels of BNP and cTnI in pediatric patients were decreased. The concentrations of BNP and cTnI were correlated with CRP level (r=0.88 and 0.88, respectively). The associations (r value) of BNP and cTnI with TNF-alpha levels were 0.35 and 0.48, respectively. CONCLUSIONS The levels of plasma BNP and cTnI are associated with the severity of sepsis in pediatric patients, and were positively correlated with CRP and TNF-alpha levels, which provides a novel strategy for the early diagnosis and evaluation of sepsis in pediatric patients.


Assuntos
Proteína C-Reativa/metabolismo , Peptídeo Natriurético Encefálico/sangue , Sepse/metabolismo , Troponina I/sangue , Biomarcadores/sangue , Criança , Pré-Escolar , Creatina Quinase Forma MB/sangue , Feminino , Humanos , Masculino , Prognóstico , Choque Séptico/sangue , Fator de Necrose Tumoral alfa/sangue
17.
BMC Vet Res ; 15(1): 91, 2019 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-30898123

RESUMO

BACKGROUND: Acute myocardial infarction (AMI) is one of the most deleterious conditions leading to cardiovascular diseases and mortality. The importance of an early and accurate diagnosis assures immediate medical treatments, which are fundamental to reduce mortality and improve prognoses. AMI is associated to an inflammatory response which includes the increase of circulating inflammatory cytokines, chemokines and immune cell activation. This study aimed to identify which are the very early immune-related biomarkers that may be used as predictors of myocardial infarction severity. In order to mimic the pathophysiological events involved in human myocardial infarction, a temporary occlusion (90 min) of the mid-left anterior descending coronary artery was performed in a swine animal model. RESULTS: Lymphocyte subsets analysis in peripheral blood revealed significant alterations in CD4+/CD8+ ratio and naïve and effector/memory T cell percentages at 1 h post-myocardial infarction. Changes in TH1/TH2-related cytokine, monocyte and neutrophil markers gene expression were observed in peripheral blood lymphocytes, as well. Additionally, significant correlations between cardiac parameters (cardiac enzymes, left ventricular ejection fraction and % infarct) and blood-derived parameters (cytokine expression and lymphocyte subset distribution) were found. CONCLUSIONS: Peripheral blood lymphocyte alterations are easily and swiftly detectable, so they may be good biomarkers for a very early prognosis and to predict myocardial infarction severity.


Assuntos
Inflamação/veterinária , Infarto do Miocárdio/veterinária , Doenças dos Suínos/diagnóstico , Animais , Biomarcadores/sangue , Relação CD4-CD8/veterinária , Creatina Quinase Forma MB/sangue , Citocinas/sangue , Modelos Animais de Doenças , Feminino , Citometria de Fluxo/veterinária , Testes de Função Cardíaca , Inflamação/sangue , Inflamação/diagnóstico , Subpopulações de Linfócitos , Linfócitos/metabolismo , Infarto do Miocárdio/sangue , Infarto do Miocárdio/diagnóstico , Suínos , Doenças dos Suínos/sangue , Troponina I/sangue
18.
Int J Sports Med ; 40(4): 253-262, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30836391

RESUMO

Consequences of running mountain races on muscle damage were investigated by analysing serum muscle enzymes and fibre-type-specific sarcomere proteins. We studied 10 trained amateur and 6 highly trained runners who ran a 35 km and 55 km mountain trail race (MTR), respectively. Levels of creatine kinase (CK), CK-MB isoform (CK-MB), sarcomeric mitochondrial CK (sMtCK), transaminases (AST and ALT), cardiac troponin I (cTnI) and fast (FM) and slow myosin (SM) isoforms, were assessed before, 1 h, 24 h and 48 h after the beginning of MTR. Significant SM increases were found at 24 h in the 55 km group. Levels of CK, CK-MB, AST and cTnI were significantly elevated in both groups following MTR, but in the 55 km group they tended to stabilize in at 48 h. Using pooled data, time-independent serum peaks of SM and CK-MB were significantly correlated. Moreover, concentration of sMtCK was significantly elevated at 1 and 24 h after the race in the 35 km group. Although training volume could confer protection on the mitochondria, the increase in serum CK-MB and SM in the 55 km group might be related to damage to the contractile apparatus type I fibres. Competing in long-distance MTRs might be related to deeper type I muscle fibre damage, even in highly trained individuals.


Assuntos
Mitocôndrias Musculares/metabolismo , Fibras Musculares de Contração Rápida/metabolismo , Fibras Musculares de Contração Lenta/metabolismo , Músculo Esquelético/lesões , Músculo Esquelético/metabolismo , Resistência Física/fisiologia , Corrida/lesões , Adulto , Alanina Transaminase/metabolismo , Aspartato Aminotransferases/metabolismo , Biomarcadores/sangue , Biomarcadores/metabolismo , Comportamento Competitivo/fisiologia , Creatina Quinase/sangue , Creatina Quinase Forma MB/sangue , Humanos , Masculino , Mitocôndrias Musculares/enzimologia , Fibras Musculares de Contração Rápida/enzimologia , Fibras Musculares de Contração Lenta/enzimologia , Miosinas/metabolismo , Condicionamento Físico Humano , Isoformas de Proteínas/metabolismo , Sarcômeros/enzimologia , Troponina I/metabolismo
19.
Chin Med J (Engl) ; 132(7): 819-826, 2019 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-30829708

RESUMO

BACKGROUND: The early identification of heart failure (HF) risk may favorably affect outcomes, and the combination of multiple biomarkers may provide a more comprehensive and valuable means for improving the risk of stratification. This study was conducted to assess the importance of individual cardiac biomarkers creatine kinase MB isoenzyme (CK-MB), B-type natriuretic peptide (BNP), galectin-3 (Gal-3) and soluble suppression of tumorigenicity-2 (sST2) for HF diagnosis, and the predictive performance of the combination of these four biomarkers was analyzed using random forest algorithms. METHODS: A total of 193 participants (80 patients with HF and 113 age- and gender-matched healthy controls) were included from June 2017 to December 2017. The correlation and regression analysis were conducted between cardiac biomarkers and echocardiographic parameters. The accuracy and importance of these predictor variables were assessed using random forest algorithms. RESULTS: Patients with HF exhibited significantly higher levels of CK-MB, BNP, Gal-3, and sST2. BNP exhibited a good independent predictive capacity for HF (AUC 0.956). However, CK-MB, sST2, and Gal-3 exhibited a modest diagnostic performance for HF, with an AUC of 0.709, 0.711, and 0.777, respectively. BNP was the most important variable, with a remarkably higher mean decrease accuracy and Gini. Furthermore, there was a general increase in predictive performance using the multi-marker model, and the sensitivity, specificity was 91.5% and 96.7%, respectively. CONCLUSION: The random forest algorithm provides a robust method to assess the accuracy and importance of predictor variables. The combination of CK-MB, BNP, Gal-3, and sST2 achieves improvement in prediction accuracy for HF.


Assuntos
Insuficiência Cardíaca/metabolismo , Insuficiência Cardíaca/patologia , Adulto , Algoritmos , Biomarcadores/sangue , Biomarcadores/metabolismo , Creatina Quinase Forma MB/sangue , Creatina Quinase Forma MB/metabolismo , Ecocardiografia , Feminino , Galectina 3/sangue , Galectina 3/metabolismo , Insuficiência Cardíaca/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue , Peptídeo Natriurético Encefálico/metabolismo
20.
Mikrochim Acta ; 186(3): 138, 2019 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-30707310

RESUMO

An improved enzyme-free immunosorbent assay is described for the simultaneous detection of the myocardial infarction biomarkers N-terminal pro B type natriuretic peptide (NT-proBNP), creatine kinase-MB (CK-MB), and cardiac muscle troponin T (cTnT). The assay integrates 3D gold nanovesicles (GNVs) and three allochroic agents (phenolphthalein, methyl red, bromothymol blue). The pH regulated allochroic agents were enwrapped in GNVs to acts as ultrasensitive nanoprobes. Loading can be controlled by adjusting the temperature to efficiently load and release the allochroic agents. This bare-eye multicolor assay has limits of detection of 70 pg·mL-1 for NT-proBNP, 910 pg·mL-1 for CK-MB, and 7.8 pg·mL-1 for cTnT. Other features include (a) a linear range that extends over a wide range and sometimes is better than conventional HRP-based immunoassays, and (b) a precision that is comparable to immunofluorescence assays as used in the clinical laboratory. Graphical abstract Schematic presentation of an improved enzyme-free immunosorbent assay (EFISA). It integrates 3D gold nano-vesicles (GNVs) and allochroic agents for the simultaneous detection of acute myocardial infarction (AMI) biomarkers (N-terminal prohormone of brain natriuretic peptide (NT-proBNP), kinase-muscle/brain test (CK-MB), and cardiac muscle troponin (cTnT)).


Assuntos
Biomarcadores/sangue , Ouro/química , Imunoadsorventes/química , Nanopartículas Metálicas/química , Infarto do Miocárdio/diagnóstico , Técnicas Biossensoriais , Colorimetria , Corantes/química , Creatina Quinase Forma MB/sangue , Humanos , Concentração de Íons de Hidrogênio , Limite de Detecção , Miocárdio/metabolismo , Peptídeo Natriurético Encefálico/sangue , Tamanho da Partícula , Fragmentos de Peptídeos/sangue , Propriedades de Superfície , Temperatura Ambiente , Troponina T/sangue
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