Publications by authors named "Vladimir Teplan"

Nephrotic syndrome (NS) is characterized by high proteinuria (over 3,5g/24 hrs), hypalbuminaemia, general edemas and hypercoagulation. Beside of primary glomerulonephritides this is found in secundary glomerulopaties eg. diabetes, systemic inflammatory diseases, oncology, damage by drugs and poisoning, by alergy, serious infections and in children from hereditary reasons.

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Background And Aims: Knowledge on the immunogenicity of anti-SARS-CoV-2 vaccines in inflammatory bowel disease [IBD] patients is limited. Therefore, SARS-CoV-2-specific T-cell responses and antibodies were analysed in 60 IBD vaccine recipients and 30 controls.

Methods: SARS-CoV-2 IgG antibodies against the viral spike protein were measured at baseline and at 8 and 26 weeks after the second vaccine dose.

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Background: Patients with inflammatory bowel disease (IBD) on immune-modifying treatment could be at an increased risk for severe coronavirus disease 2019 (COVID-19); thus, data on the efficacy and safety of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) vaccines are essential. We conducted a prospective study of IBD patients vaccinated with BNT162b2, CX-024414, and ChAdOx1 nCoV-19 vaccines. The aim was to evaluate the rate and magnitude of seroconversion, assess the effect of different immune-modifying treatment modalities on the magnitude of anti-SARS-CoV-2 IgG antibody levels, and analyze the impact of anti-SARS-CoV-2 vaccination on the inflammatory biomarkers of IBD.

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Due to population aging in developed countries, it has become necessary to prepare a functional health care plan for the elderly. One of the possibilities to improve postoperative outcomes and recovery in elderly patients is to perform common surgical procedures in the regime of one-day surgery. We compared elderly patients who underwent surgery in a large university hospital with elderly patients who underwent surgery in a facility dedicated to one-day surgery.

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Advanced social care and higher level of medical intervention in elderly allow to prolong life expectancy in seniors, and therefore the number of elderly patients has risen rapidly in last decades. Management of elderly patients examination before surgery is routinely organized by general practitioners and internists with an aim to facilitate the surgery team work; to help anesthesiologists focus mainly on strategy of anesthesia (without any other special examination) and surgeons to realize/accomplish effective and save surgery, including elective surgery procedures. Key issue is to summarize the level of risk for surgery and compare it to prediction of follow-up with respect of mortality and morbidity as well as function status after surgery.

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Substances toxic to the kidney are legion in the modern world. The sheer number and variety, their mutual interactions and, metabolism within the body are a challenge to research. Moreover, the kidney is especially prone to injury owing to its physiology.

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The impact of body mass index (BMI) and body weight on hospitalization rates in haemodialysis patients is unknown. This study hypothesizes that being either underweight or obese is associated with a higher hospitalization rate. Observational study of 6296 European haemodialysis patients with prospective data collection and follow-up every six months for three years (COSMOS study).

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In last decades was confirmed remarkable increase in number of old patients with chronic kidney disease. Despide of developments in dialysis technology and kidney transplantation there is a growing number of old patients who are not suitable for these methods. Recently were published data showing long-term effect of protein restricted diet supplemented with keto amino acids in elderly.

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Background: Low protein diets (LPD) have long been prescribed to chronic kidney disease patients with the goals of improving metabolic abnormalities and postpone the start of maintenance dialysis.

Methods: We reviewed the recent literature addressing low protein diets supplemented with ketoacids/essential aminoacids prescribed during chronic kidney disease and their effects on metabolic, nutritional and renal parameters since 2013.

Results: We show new information on how to improve adherence to these diets, on metabolic improvement and delay of the dialysis needs, and preliminary data in chronic kidney disease associated pregnancy.

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Tubular transport of sodium (TNa+) and chloride (TCl-) is decreased in patients with chronic kidney disease. The decrease of TCl- is relatively lower than that of TNa+. These changes of tubular transport of Na+ and Cl- participate on the development of acid base disturbance in patients with chronic kidney disease and with their glomerular filtration rate lower than 0.

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Levels of the endogenous nitric oxide synthase inhibitor asymmetrical dimethylarginine (ADMA) are elevated and endothelial progenitor cells (EPCs) decreased in patients undergoing renal transplantation (Tx) and may contribute to cardiovascular complications. In this study, we tested the hypothesis that elevated ADMA and decreased EPC can be positively influenced with regular physical exercise early after Tx. Blood samples for analysis of ADMA and EPC were obtained from randomly selected 64 patients after Tx who agreed to participate in a supervised aerobic exercise program for 6 months (group I).

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It is not yet clear whether or not renal function in the living donor can be sufficiently assessed by estimated glomerular filtration rate (GFR) using creatinine-based equations. The present paper investigates the relationship between GFR values determined using renal inulin clearance (Cin) and those estimated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula. Our study was performed in 287 potential kidney donors with a mean age of 48 ± 10 years.

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Background/aims: To assess, in a prospective cohort study of 238 renal transplant patients, our hypothesis that elevated ADMA levels may be influenced by physical exercise and obesity.

Methods: Blood samples before and after six months were obtained from 116 transplant patients participating in an aerobic exercise (Group I). A control group consisted of 122 matched transplant patients who did not exercise regularly (Group II).

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Article Synopsis
  • Visfatin is a pro-inflammatory adipocytokine mainly produced in visceral fat, and this study aimed to see how its levels change after abdominal surgery compared to other inflammatory markers.
  • The study involved 42 patients who underwent elective surgery, measuring levels of visfatin and other cytokines at various time points post-operation.
  • Results showed visfatin levels spiked within 24 hours after surgery but returned to normal by 72 hours, suggesting it could be an early indicator of inflammation, especially in obese patients.
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Background: Visfatin is a newly recognized adipocytokine produced mainly in visceral fat tissue. Beside its effect on insulin receptor, it serves as proinflammatory cytokine and its level can be changed during inflammatory processes. The aim of the study was to analyze dynamics of serum visfatine level in early period after abdominal surgery and compare it with other proinflammatory markers.

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Early versus later start of dialysis is still a matter of debate. Low-protein diets have been used for many decades to delay dialysis initiation. Protein-restricted diets (0.

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Background And Objectives: A high body mass index (BMI) is associated with lower mortality in patients undergoing hemodialysis. Short-term weight gains and losses are also related to lower and higher mortality risk, respectively. The implications of weight gain or loss may, however, differ between obese individuals and their nonobese counterparts.

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Hyperphosphatemia has been associated with higher mortality risk in CKD 5 patients receiving dialysis. Here, we determined the association between the use of single and combined phosphate-binding agents and survival in 6797 patients of the COSMOS study: a 3-year follow-up, multicenter, open-cohort, observational prospective study carried out in 227 dialysis centers from 20 European countries. Patient phosphate-binding agent prescriptions (time-varying) and the case-mix-adjusted facility percentage of phosphate-binding agent prescriptions (instrumental variable) were used as predictors of the relative all-cause and cardiovascular mortality using Cox proportional hazard regression models.

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Background: Chronic kidney disease-mineral and bone disorders (CKD-MBD) are important complications of CKD5D patients that are associated with mortality.

Methods: COSMOS is a multicentre, open cohort, prospective, observational 3-year study carried out in haemodialysis patients from 20 European countries during 2005-07. The present article describes the main characteristics of the European dialysis population, the current practice for the prevention, diagnosis and treatment of secondary hyperparathyroidism and the differences across different European regions.

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Chronic kidney disease (CKD) is increasingly common, and there is an increasing awareness that every strategy should be used to avoid complications of CKD. Restriction of dietary protein intake has been a relevant part of the management of CKD for more than 100 years, but even today, the principal goal of protein-restricted regimens is to decrease the accumulation of nitrogen waste products, hydrogen ions, phosphates, and inorganic ions while maintaining an adequate nutritional status to avoid secondary problems such as metabolic acidosis, bone disease, and insulin resistance, as well as proteinuria and deterioration of renal function. This supplement focuses on recent experimental and clinical findings related to an optimized dietary management of predialysis, dialysis, and transplanted patients as an important aspect of patient care.

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Our prospective study analyzed selected adipocytokines: adiponectin (ADPN), leptin, visfatin, and asymmetric dimethylarginine (ADMA) in the plasma of renal transplant recipients previously treated by peritoneal dialysis and hemodialysis. A total of 70 patients were on follow-up for 12 months after transplantation. Of these, 30 patients (group I) developed obesity, and 40 patients were nonobese (group II).

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Background: Kidney transplantation represents the method of choice of end stage renal disease.

Methods And Results: The program of kidney transplantation was established in 1966 in our centre. In recent years, roughly 200 patients have undergone kidney transplantation annually, and 20-30 of them have received a graft from the living donor.

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Background: Obesity is a known high-risk factor for the development of vascular diseases and chronic kidney disease (CKD). In this study we aimed to elucidate the impact of adipose tissue on the inflammatory state in CDK patients with obesity.

Patients And Methods: A cohort of 40 patients with CKD (stages 3-4) with mild proteinuria (2.

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