Active clinical trials for "Kidney Diseases"

In the United States, African Americans are 3.6 time and Hispanics 1.5 times more likely to suffer from chronic kidney disease and need dialysis treatment for life, when compared to the non-Hispanic Whites. Unfortunately many dialysis patients die, so that after 5 years only less than 35% are still alive. Dialysis patients who appear malnourished or who have muscle and fat wasting are even more likely to die. Interestingly, among dialysis patients, minorities (African Americans, Hispanics and Asian Americans) usually survive longer than the non-Hispanic Whites. If the investigators can discover the reasons for these so-called "racial survival disparities" of dialysis patients, the investigators may be able to improve survival for all dialysis patients and maybe even for many other people who suffer from other chronic diseases. During this 5 year study the investigators would like to test if a different nutrition and diet can explain better survival of minority dialysis patients. The investigators will also test if in additional to nutrition there are 2 other reasons for better survival of minority dialysis patients, namely differences in bone and minerals and differences in social and psychological and mental health. The investigators plan to study 450 hemodialysis patients every 6 months in several dialysis clinics in Los Angeles South Bay area. These subjects will include 30% African Americans, 30% Hispanics, 30% non-Hispanic Whites and 10% Asians. Every 6 months the investigators will examine their nutritional conditions, dietary intake, psycho-social conditions and quality of life, and will recruit 75 new subjects to replace those who left our study as a result of kidney transplantation, death or other reasons. Hence, the investigators estimate studying a total of 1,050 hemodialysis patients over 5 years. Clinical events such as hospital admissions and survival will be followed. Blood samples will be obtained every 6 months for measurements of hormones and "biomarkers", and the remainder of the blood will be stored in freezers for future measurements. The investigators plan to design and develop race and ethnicity specific nutritional risk scores and food questionnaires and will test some of these scores in larger national databases of hemodialysis patients. Almost a year after the study starts, the investigators also plan to do additional tests of body composition and dietary intake in a smaller group of these patients at the GCRC.

The purpose of this study is to determine whether Retinol binding protein 4 has a role in insulin resistance development in patients suffering from end stage renal disease on hemodialysis.

The purpose of this study is to identify incidence of Chinese herb nephropathy in a medical center

In Egypt, the prevalence of end stage renal disease in pediatric population has never been estimated on a national scale. The patients at end stage renal disease encounter oral and dental problems that emphasize regular and careful screening . In Egypt, the prevalence of oral findings is not studied so we conduct this study to study the oral findings among a group of pediatric patients at end stage renal disease either on haemodialysis or after kidney transplantation.

Both, acute kidney injury (AKI) and chronic kidney disease (CKD) considered as a continuum of the disease process. The renal recovery after AKI is currently assessed by measuring serum creatinine, which has its limitations including change in muscle mass, volume distribution in critically ill patients. Also, despite complete return of serum creatinine after AKI, these patients remain at increased risk for developing CKD, which suggest that there may be persistent subclinical damage to the kidney. The new term acute kidney disease (AKD) has been proposed to define the renal disease after AKI. Recently (2017), Acute Disease Quality Initiative (ADQI) 16 workgroup published a consensus document on AKD and renal recovery, which provide definition as well as research recommendation for AKD. The consensus report of the ADQI 16 workgroup (2017) recommended that there is need for studies to describe the epidemiology, clinical course, natural history of patients having AKD; and also determine optimal methods to assess functional recovery and identify novel biomarker(s), functional tests, and imaging approach which can reveal ongoing injury and repair in these patients. This is an observational study to describe epidemiology, clinical course and recovery from AKD at 90 days in critically ill patients.

This prospective observational study aims to investigate the relationship between CVC and serum Klotho for renal function correction in patients with different CKD stages

Parathyroid hormone (PTH) may play an important role in the down-regulation of CYP3A4 expression induced by Chronic kidney diseases (CKD). In the study of molecular mechanism, the research group found that the expression of CYP3A2 metabolic enzyme in rat liver decreased in the state of CKD.And PTH may down-regulate the expression of CYP3A4 metabolic enzyme by inhibiting the expression of Nuclear factor- Kilobuse (NF-kB) p65 subunit

The purposes of this study is 1. To establish the validity of CEUS to measure renal perfusion by comparing it against ASL-MRI in young and older healthy volunteers, and generate a normative dataset of CEUS measures of renal perfusion. 2. Establish proof of principle for the use of CEUS to measure renal perfusion in the acute phase of AKI, demonstrating its feasibility and potential clinical utility. We will do this by performing daily CEUS measurements for up to five days in a cohort of people with AKI stage 3, commencing as close to onset. of AKI as possible, correlating with clinical data and following outcomes until 90 days.

In this study, a prospective, randomized and controlled clinical study would be carried out to establish Ultrasound Integrated Precision Diagnosis Technology with elastography as the core technology to evaluate renal injury and repair comprehensively and accurately, and to improve the clinical diagnosis chance of renal injury (or renal fibrosis). Combined with the dynamic changes of biomarkers (inflammatory factors, cytokines secreted by immune cells, etc.) after kidney injury, the research on the prognosis of kidney disease with ultrasound elastography technology as the core would be explored, which aims to provide a scientific basis for the application of Ultrasound Integrated Precision Diagnosis Technology.

Prospective multicenter follow-up study of 10 years. Cohort established between 2005-2007 with stratified random sample of general population older than 20 years (Census 2001), N= 2746 subjects.