A core symptom that is frequently linked with dysregulation of glutamatergic neurotransmission in regard to schizophrenia is impairment or damage of executive functioning as a component of cognitive deficiency. The amino acid D-serine plays the role of an endogenous coagonist at the glutamatergic N-methyl-D-aspartate (NMDA) receptor glycine modulatory site. Considerably reduced serum levels of D-serine were found in patients suffering from schizophrenia compared with healthy control participants. An increase in D-serine led to augmented cognitive functionality in patients suffering from schizophrenia who were undergoing clinical trials and given the treatment of first- and second-generation antipsychotics. The study proposed the hypothesis that the D-serine blood serum levels may be linked with the extent of executive functionality in those suffering from the mental illness in question. For the purpose of examining executive function in such patients, the Rey-Osterrieth Complex Figure, Trail Making, and Wisconsin Card Sorting tests were applied (n = 50). High-performance liquid chromatography was used to gauge the total serine and D-serine levels. The extent of damage was examined through neuropsychological tests and was found to be considerably linked to D-serine serum level and the D-serine/total serine ratio (p < 0.05) in the sample being considered. A lower average serum level of D-serine and lower D-serine/total serine ratio were observed in participants with the worst performance compared with those displaying the best performance-this was true when the patients were split into quartile groups based on their results (p < 0.05). The findings of modified D-serine serum levels and the D-serine/total serine ratio linked to the extent of damage in executive functioning indicate that serine metabolism that is coresponsible for NMDA receptor dysfunction has been changed.
- Publikační typ
- časopisecké články MeSH
OBJECTIVES: Acute myeloid leukemia (AML) cells are highly resistant to therapy. The presumed molecular basis of this resistance is the effect of tumor necrosis factor alpha (TNF-α) and other cytokines on endothelial adhesion molecule expression. The aim of this study was to test the hypothesis that cytokines and soluble adhesion molecules correlate in AML. METHODS: Baseline serum levels of 17 cytokines and 5 soluble adhesion molecules were measured in 53 AML patients using biochip array technology. Age, leukocyte count, secondary AML, CRP, FLT3-ITD and remission were variables. Statistical analysis was performed in R version 3.1.2. RESULTS: VCAM-1 correlated with ICAM-1 (P < 0.0001), E-selectin (P < 0.0001), leukocyte count (P = 0.0005) and TNF-α (P = 0.0035). E-selectin correlated with leukocyte count (P < 0.0001), P-selectin (P = 0.0032) and MCP-1 (P = 0.0119). CRP correlated with IL-6 (P < 0.0001), leukocyte count negatively correlated with IL-7 (P = 0.0318). FLT3-ITD was associated with higher E-selectin (P = 0.0010) and lower IL-7 (P = 0.0252). Secondary AML patients were older. Failure of induction therapy was associated with significantly higher CRP and lower P-selectin. Leukocyte count (P < 0.0001), FLT3-ITD (P = 0.0017) and secondary AML (P = 0.0439) influenced the principal component. CONCLUSIONS: Leukemic cells can modulate the microenvironment. Cytokine, adhesion molecule levels and leukocyte count correlate in AML. Understanding these mechanisms may form the basis of novel therapeutic approaches.
- MeSH
- akutní myeloidní leukemie krev farmakoterapie MeSH
- analýza hlavních komponent MeSH
- chemorezistence MeSH
- cytokiny metabolismus MeSH
- lidé středního věku MeSH
- lidé MeSH
- molekuly buněčné adheze metabolismus MeSH
- počet leukocytů MeSH
- prospektivní studie MeSH
- protokoly protinádorové kombinované chemoterapie terapeutické užití MeSH
- TNF-alfa fyziologie MeSH
- tyrosinkinasa 3 podobná fms fyziologie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
BACKGROUND: Activation of the immune system plays a pathogenic role in the process of myocardial remodeling in patients with supraventricular arrhythmias. The intensity of this process is associated with the effectiveness of electrical cardioversion and radiofrequency catheter ablation (RFA). The aim of this study was to test the ability of the biochip microarray to detect immune parameters in patients with supraventricular arrhythmias undergoing RFA treatment. METHODS: We used a biochip-based microarray system to determine multiple immune parameters in a group of 35 patients who had undergone RFA for atrioventricular nodal reentry tachycardia (AVNRT), atrial flutter (AFL) and atrial fibrillation (AF). RESULTS: Before the procedure, serum IL-6 and VEGF levels were significantly increased in patients with atrial fibrillation compared to patients with AVNRT (IL-6: 6.4±6.3 ng/L vs. 1.5±0.7 ng/L, P < 0.01; VEGF: 132.4±74 ng/L vs. 88.5±56.4 ng/L, P < 0.01). After the procedure, serum IL-6, VEGF, IFN-γ and MCP-1 levels significantly increased compared to baseline (IL-6: 5.2±4.8 ng/L vs. 2.9±2.1 ng/L, P < 0.01; VEGF: 195.8±160 ng/L vs. 119.8± 110 ng/L, P < 0.05; IFN-γ: 3.1±1.2 ng/L vs. 2.3±0.6 ng/L, P < 0.05; MCP-1: 104.1±84.5 ng/L vs. 54.5±50 ng/L, P < 0.05). Serum IL-6 and IFN-γ were associated with the number of RFA applications (IL-6: r = 0.56, n 33; IFN-γ: r = 0.47, n 33). CONCLUSIONS: This study showed that biochip-based microarray can be useful in the detection of immune activation in patients with arrhythmias and can detect myocardial injury after RF procedures.
- MeSH
- atrioventrikulární nodální reentry tachykardie krev imunologie chirurgie MeSH
- biologické markery metabolismus MeSH
- dospělí MeSH
- epidermální růstový faktor metabolismus MeSH
- interferon gama metabolismus MeSH
- interleukin-6 metabolismus MeSH
- katetrizační ablace metody MeSH
- lidé středního věku MeSH
- lidé MeSH
- mikročipová analýza metody MeSH
- mladý dospělý MeSH
- studie případů a kontrol MeSH
- vaskulární endoteliální růstový faktor A metabolismus MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- práce podpořená grantem MeSH
The natural history of hypertrophic cardiomyopathy (HCM) varies from an asymptomatic and benign clinical course to sudden premature death. Therefore, the new markers are searched with the aim to detect risk patients and improve their prognosis. The aim of this study was to test a cardiac multimarker testing strategy in detection of initial structural changes in patients with nonobstructive hypertrophic cardiomyopathy (HCM). In the group of 47 patients with nonobstructive HCM (58.4 ± 12.4 years, 12 emales) the mean left ventricle mass was 344.8 ± 129.9 g, the mean left ventricle mass index was 171.4 ± 60.2 g.m-2. We observed increased concentration of cardiac markers in peripheral blood: high sensitivity troponin T (hsTnT): median: 9 ng/L (IQR: 5 - 16 ng/L), vs. controls: 7 (5 - 9) ng/L, p 0.03; creatine kinase MB isoenzyme (CK MB): 2 (1.4 - 2.7) μg/L vs. 1.6 (1.1 - 2.2) μg/L, p 0.04; myoglobin 46.4 (33.3 - 65.2) μg/L vs. 35.6 (22.8 - 43.7) μg/L, p 0.001; heart type of fatty acid binding protein (hFABP): 1.8 (1.4 - 3.3) μg/L vs. 1.6 (1.3 - 2.1) μg/L, p 0.05; glycogen phosphorylase BB (GPBB): 3.9 (2.5 - 6.3) μg/L vs. 2.3 (1.9 - 4.2) μg/L, p 0.001. The analysis of the associations of left ventricle mass index and cardiac markers revealed its significant association with hFABP (r = 0.41, 95% CI: 0.07-0.66, p 0.01), CKMB (r = 0.33, 95% CI: 0.11-0.59, p 0.05), and with hsTnT (r = 0.39, 95%CI: 0.12 - 0.62, p 0.008). This study indicates potential clinical use of the multimarker testing in diagnosis and screening of the hypertrophic cardiomyopathy.
- MeSH
- biologické markery * krev MeSH
- echokardiografie MeSH
- funkce levé komory srdeční MeSH
- hypertrofická kardiomyopatie * diagnóza krev MeSH
- lidé MeSH
- srdce - funkce komor MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- práce podpořená grantem MeSH
BACKGROUND: Hypertrophic cardiomyopathy (HCM) is mostly autosomal dominant disease of the myocardium, which is characterized by myocardial hypertrophy. Vascular endothelial growth factor (VEGF) is involved in myocyte function, growth, and survival. The aim of study was to analyze the clinical significance of VEGF in structural and functional changes in patient with HCM. METHODS: In a group of 21 patients with nonobstructive HCM, we assessed serum VEGF and analyzed its association with morphological and functional parameters. Compared to healthy controls, serum VEGF was increased: 199 (IQR: 120.4-260.8) ng/L versus 20 (IQR: 14.8-37.7) ng/L, P < 0.001. VEGF levels were associated with left atrium diameter (r = 0.51, P = 0.01), left ventricle ejection fraction (r = -0.56, P = 0.01), fractional shortening (r = -0.54, P = 0.02), left ventricular mass (r = 0.61, P = 0.03), LV mass index (r = 0.46, P = 0.04), vena cava inferior diameter (r = 0.65, P = 0.01), and peak gradient of tricuspid regurgitation (r = 0.46, P = 0.03). CONCLUSIONS: Increased VEGF level is associated with structural and functional parameters in patients with HCM and serves as a potential tool for diagnostic process of these patients.
- MeSH
- hypertrofická kardiomyopatie * krev epidemiologie patologie patofyziologie MeSH
- lidé středního věku MeSH
- lidé MeSH
- senioři MeSH
- vaskulární endoteliální růstový faktor A krev MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
AIMS: To compare serum levels of 17 cytokines and 5 adhesion molecules in patients with newly diagnosed acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL) using biochip array technology. METHODS: A total of 15 AML and 15 ALL patients were studied. Serum samples were taken prior to anticancer therapy and were analyzed by biochip based immunoassays on the Evidence Investigator analyzer. This approach allows simultaneous detection of multiple analytes from a single sample. T-tests were used for statistical analysis. RESULTS: Comparing cytokine and adhesion molecules levels in newly diagnosed AML and ALL patients, we found significant increase in AML in serum IL-4 (P < 0.0001), IL-2 (P < 0.01), IL-3 (P < 0.05), and significant decrease (P < 0.05) in serum VEGF and VCAM-1. DISCUSSION: Our results indicate that serum profile of cytokines and adhesion molecules differs in newly diagnosed AML and ALL patients. Further studies are needed to establish if these alterations could be used as a clinically relevant biomarker for acute leukemias.
- MeSH
- akutní lymfatická leukemie krev diagnóza MeSH
- akutní myeloidní leukemie krev diagnóza MeSH
- čipová analýza proteinů metody MeSH
- cytokiny metabolismus MeSH
- diferenciální diagnóza MeSH
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladý dospělý MeSH
- molekuly buněčné adheze metabolismus MeSH
- nádorové biomarkery metabolismus MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
