Active clinical trials for "Kidney Diseases"

The physiopathology of diabetic nephropathy (DN) is unclear. To investigate risk factor, the investigators choose to look about some oxidative stress genes. Today a one-gene explanation is not really possible. So the theory of some genetic predisposition to DN is more likely. The aim of the study is to look about the association of the C282T polymorphism of P22phox, a sub unit of the nicotinamide adenine dinucleotide phosphate-oxidase (NADPH oxidase) in the occurrence of DN. To follow the oxidative stress pathway of the DN, the investigators also investigate three other polymorphisms: -429 T/C, -374 T/A polymorphism of advanced glycation end-products receptor (AGER) and the p.Arg261Gln polymorphism of the 12 lipoxygenase (ALOX 12). Discordant data suggest a link between the first 2 polymorphisms and DN. The last polymorphism is correlated to albuminuria in diabetic patients.

The primary objective of the study is to determine the prevalence of aspirin resistance in chronic kidney disease patients. The secondary objectives are to determine possible risk factors contributing to aspirin resistance in this population.

Ultrasound (US) is widely used as a diagnostic tool in a hospital setting. In a medical department, diagnosis like heart failure or most kinds of heart diseases, hypervolemia, hypovolemia, pleural effusion, pericardial effusion, ascites, diseases in the gall bladder/bile tract, urine tract and venous thrombosis are common. US is the key diagnostic tool in these diagnosis, and on early diagnosis is crucial both on behalf of the patients well-being, and for hospital logistic reasons. The aim is to study the clinical use of pocket sized US as a screening diagnostic tool in an department of internal medicine. Method: All patients admitted (in certain preset periods) to Department of medicine will be screened with pocket sized US by expert user. Changes in diagnoses, as well as medications as a result of US screening will be the endpoints. US findings will be validated against standard echocardiography, or standard US/CT/MRI performed at the Radiological department. The aim is to study the clinical use of pocket sized US as a screening diagnostic tool in a department of cardiology. Method: All patients admitted (in certain preset periods) to Department of cardiology will be screened with pocket sized US for heart disease, pericardial and pleural effusion. Examinations by expert users. Specific findings could be myocardial dysfunction as heart failure, cardiomyopathies, regional dysfunction due to ischemia, valvular dysfunction, atrial enlargement, and pleural/pericardial effusion. Changes in diagnoses, as well as medications as a result of US screening will be the endpoints. US findings will be validated against standard echocardiography in all. As in 1), but examination by non-expert users compared to expert users.

This study will help determine the relationship between impaired sleep and chronic kidney disease, specifically to determine if sleep disturbances are a risk factor for worsening kidney function.

Evaluation of the frequency of familial cases of renal HYPODYSPLASIA

Complications of hemodialysis access are the most frequent single reason for hospitalization among patients with End Stage Renal Disease (ESRD). Uremia, and particularly uremia in patients with diabetes, is a state of increased oxidative stress. The central hypothesis to be tested by this project is that oxidative stress is a major (and modifiable) trigger for vascular access complications. We hope to slow or reduce rates of stenosis, thrombosis and access complications by giving Vitamin E supplementation to patients being treated by hemodialysis.

Sudden cardiac death due to arrhythmia is the leading cause of death in end-stage renal disease (ESRD) patients treated with hemodialysis (HD). As it is anticipated that the number of individuals with ESRD will exceed 1.2 million in the next 20 years, sudden death in this population has enormous public health impact. Research has shown that arrhythmic events are temporally associated with longer periods between HD with a three-fold risk of events in the 12 hours preceding the longest inter-dialysis interval. The exact cause of these findings is unknown.

The purpose of this study is to assess serum cystatin C as a marker of kidney function (glomerular filtration rate, GFR) in children aged 2-14. The individual production rate and possible extra renal elimination of cystatin C based on body composition data is included to develop new algorithms to estimate GFR. Furthermore, day-to-day variation on serum cystatin C is investigated.

To determine comparative 1-year outcomes in renally impaired patients who previously underwent cardiac angiography with Isovue®-370 or Visipaque™ 320 as part of the IOP-104 trial protocol and were evaluable for determination of post-contrast significant renal injury (defined as >25% increase in SCr or >25% increase in cystatin C).

In type 2 diabetics, progression from chronic kidney disease to end stage renal disease may be slowed down by therapeutic interventions as angiotensin converting enzyme inhibitors use, control of high blood pressure and proteinuria, control of hyperglycaemia, protein intake restriction, smoking cessation. Correcting anaemia in these patients may prevent impairment of renal function. International guidelines indicate that haemoglobin level has to be of 110 g/L in these patients. We conduct an interventional randomized trial to evaluate the potential benefit of an haemoglobin level of 130 g/L in patients with type 2 diabetes and with a chronic kidney disease defined by a Cockcroft's creatinine clearance of 25 - 60 ml/min.