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Novel biomarkers in patients with renal disease
Zakiyanov, Oskar ; Kalousová, Marta (advisor) ; Teplan, Vladimír (referee) ; Průša, Richard (referee)
Chronic kidney disease (CKD) and acute kidney injury (AKI) are major public health problems. It is important to be able to identify those at high risk of adverse outcome, CKD progression and associated cardiovascular disease. The aim of the thesis was to study novel promising biomarkers, their relationship to kidney function, chronic inflammation and/or cardiovascular risk - placental growth factor (PlGF), pregnancy associated plasma protein A (PAPP-A), matrix metalloproteinase 2 (MMP-2), matrix metalloproteinase 9 (MMP-9), soluble receptor for advanced glycation end products (sRAGE), calcium binding protein S100A12 or extracellular newly identified RAGE binding protein (EN-RAGE), and high mobility group box protein-1 (HMGB-1) in patients with renal diseases including CKD, haemodialysis (HD), AKI patients, and healthy controls for comparison. First study revealed that PlGF is elevated in patients with decreased renal function. Second study demonstrated the association of MMP-2 and PAPP-A with proteinuria in patients with CKD. Moreover, serum MMP-2, MMP-9 and PAPP-A levels significantly differed in patients with various nephropathies. EN-RAGE levels are not elevated in patients with CKD, but are related to inflammatory status. PAPP-A, EN-RAGE and HMGB-1 levels are significantly elevated, but sRAGE and PlGF...
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Sepsis and Sepsis-associated Acute Kidney Injury: Molecular Mechanism and Lovel Aspects of Treatment
Horák, Jan ; Matějovič, Martin (advisor) ; Šrámek, Vladimír (referee) ; Balík, Martin (referee)
Sepsis is the most common cause of death in the intensive care units worldwide. Despite the undeniable progress in pre- and clinical research, the effective causal therapeutic strategy still does not exist. Given to extremely complex and heterogenic host response to presence of infection, the paradigm "one disease, one drug" is obviously flawed and combination of multiple targets that involves early immunomodulation and cellular protection are needed. Cellular therapy using mesenchymal stem cells represents strategy that brought positive results in experiments with rodent septic models. Part of this thesis is dedicated to evaluation of safety and efficacy of stem cells intravenous administration to well-established large animal model of progressive peritoneal sepsis. Affecting of the neuroinflammatory reflex through the vagus nerve stimulation showed potential to attenuate sepsis in rodents. Rest of the text is dedicated to evaluation of vagus nerve stimulation effectivity in our model. KEYWORDS Sepsis, sepsis-associated acute kidney injury, mesenchymal stem cells, vagus nerve stimulation
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Biomarkers of early renal injury
Fořtová, Magdaléna ; Průša, Richard (advisor) ; Kalousová, Marta (referee) ; Ryšavá, Romana (referee)
Aims: The thesis deals with the biomarkers of early renal injury, namely albuminuria and neutrophil gelatinase-associated lipocalin (NGAL). The aims in the case of albuminuria were the implementation of HPLC method, comparing HPLC with immunoturbidimetric (IT) method and monitoring the relationship to the diagnosis of diabetes mellitus. The aim of urinary NGAL (and eventually other markers) examination was to verify its reliability in the prediction of acute kidney injury (AKI). Methods: We investigated albuminuria in fresh urine samples in the groups of 636 diabetics and 456 nondiabetics using the HPLC method (Agilent 1200, Agilent Technologies, USA) and immunoturbidimetrically (Cobas Integra 400, Roche Diagnostics); we studied the correlations and relationships between albuminuria and glycated hemoglobin HbA1c. We investigated urinary NGAL by chemiluminescent microparticle immunoassay (Architect i4000, Abbott) in children's groups: 1) after renal transplantation (N = 15), 2) with acute or chronic kidney disease (N = 28); and in adult patient's groups: 1) after cardiac surgery (N = 10) and 2) post angiography (N = 41). Results: Albuminuria determined by HPLC was statistically significantly higher than albuminuria determined by IT. We excluded nonspecificity of the HPLC method. Results indicate...
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Novel biomarkers in patients with renal disease
Zakiyanov, Oskar ; Kalousová, Marta (advisor) ; Teplan, Vladimír (referee) ; Průša, Richard (referee)
Chronic kidney disease (CKD) and acute kidney injury (AKI) are major public health problems. It is important to be able to identify those at high risk of adverse outcome, CKD progression and associated cardiovascular disease. The aim of the thesis was to study novel promising biomarkers, their relationship to kidney function, chronic inflammation and/or cardiovascular risk - placental growth factor (PlGF), pregnancy associated plasma protein A (PAPP-A), matrix metalloproteinase 2 (MMP-2), matrix metalloproteinase 9 (MMP-9), soluble receptor for advanced glycation end products (sRAGE), calcium binding protein S100A12 or extracellular newly identified RAGE binding protein (EN-RAGE), and high mobility group box protein-1 (HMGB-1) in patients with renal diseases including CKD, haemodialysis (HD), AKI patients, and healthy controls for comparison. First study revealed that PlGF is elevated in patients with decreased renal function. Second study demonstrated the association of MMP-2 and PAPP-A with proteinuria in patients with CKD. Moreover, serum MMP-2, MMP-9 and PAPP-A levels significantly differed in patients with various nephropathies. EN-RAGE levels are not elevated in patients with CKD, but are related to inflammatory status. PAPP-A, EN-RAGE and HMGB-1 levels are significantly elevated, but sRAGE and PlGF...
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