Active clinical trials for "Kidney Diseases"

This protocol seeks to define aspects of intestinal and hepatic uptake and metabolism of several amino acids. The major hypothesis to be tested is that the splanchic bed (intestine and liver) conserves essential amino acids and metabolites while synthesizing and metabolizing nonessential amino acids. The aims of the study include defining the relative roles of enteral and hepatic extraction/metabolism in the disposition of glutamate, alanine, methionine and other amino acids. Emphasis will also be placed on studies of the transamination of alpha-ketoisocaproic acid (KIC) to leucine since this reaction is of potential importance in the design of nutritional regimens for patients with renal disease.

This is a prospective, multi-center, hospital-based observational study. The aim of the study is to evaluate the prevalence of chronic kidney disease in patients with stable coronar heart disease.

Endothelial dysfunction one-year after transplantation mainly depends on transplant-associated factors and only marginally on reduced renal function. OBJETIVES Primary objective Estimate the contribution of renal dysfunction to endothelial dysfunction in two cohorts of patients, living kidney donors and their transplant recipients. Secondary objectives To evaluate in both cohorts of patients before and after nephrectomy/transplantation the evolution of the following parameters: Renal function (iohexolGFR, proteinuria/microalbuminuria). Blood pressure (24 h ambulatory blood pressure measurement) Surrogate variables of subclinical atherosclerosis (carotid ultrasound, ankle-brachial index, pulse wave velocity). DESIGN Non-interventional, prospective, multicenter, longitudinal study of two cohorts: living kidney donors and their transplant recipients.

Corticomedullary differentiation (CMD) abnormality (absent/reversed) is a parameter that can indicate possible nephropathy. The evolution of CMD across gestation had not been well established. Devrendt et al demonstrated the presence of CMD in all fetuses older then 20 weeks. In our study we would like to determine the exact timing of it's sonographic visualisation. This is a prospective study recruiting women between 14-24 week gestation during routine ultrasound screening. A midsagittal image of each kidney will be taken by a single sonographer and examined for the presence of the CMD by two other sonographers blinded to gestational age.

Bone and mineral disease is a key problem in patients with kidney disease. The available clinical parameters are non-specific, unproven for the assessment of the bone metabolism and do not reflect the complexity and diversity of the underlying bone pathology. The aim of this study is to use bone histology, novel bone markers and bone imaging results to establish a reliable decision model (diagnostic tool) that can be used to guide the individual therapy.

The main objective is to establish a statistical predictive model of the risk of intradialytic hypotension during hemodialysis (HD) or hemodiafiltration (HDF) sessions based on the measurement of residual blood volume and excess extracellular hydration. The secondary objective is to study the impact of dysfunction in the mechanisms of compensation for decreased blood volume (heart disease, neuropathy, drugs) on the risk of intradialytic hypotension.

Based on clinical evidence based medicine and organizational management model, investigators redesign the prevention and treatment of chronic kidney disease of public health system in Shanghai China. The investigators hope to find early chronic kidney disease, prevention and clinical intervention of orderly combination. The advantages of this system were confirmed by comparing the prevalence rate, awareness rate and treatment rate before and after the completion of the system.

Acute kidney injury (AKI) involves poor prognosis in ICU patients. The renal prognosis at long term is unknown. The study will determine chronic kidney injury incidence and quality of life, five years after AK during ICU stay.

This is an observational study assessing coronary microvascular function in healthy controls with normal kidney function, living kidney donors, pre-dialysis patients with chronic kidney disease stage 5 and patients on peritoneal dialysis.

There are some diseases that give rise to diverse renal manifestations as does sickle cell disease