Chronic Kidney Disease, Heart Failure With Preserved Ejection Fraction (HFPEF), Obesity (Disorder)
Conditions
Brief summary
This research study wants to learn about Chronic Kidney Disease (CKD) with Obesity, and Heart Failure with preserved Ejection Fraction (HFpEF) and better ways to evaluate these diseases. HFpEF means that the heart is not able to fill properly with blood while it is resting so the amount of blood pumped out to the body is less than it would be if it was filling properly. The study is being done to describe the differences in how the kidneys handle protein and salt in participants with HFpEF and obesity compared to healthy persons.
Interventions
Meal with 1g/kg protein content and 3900mg sodium
Sponsors
Study design
Eligibility
Inclusion criteria
Criteria for Cohort 1: Healthy Participants Inclusion Criteria: * Adults 18-75 years old * Normal kidney function * No heart failure * BMI 25-30kg/m2
Exclusion criteria
* Diagnosis of chronic illness * eGFR\<60mL/min/1.73m2 * Pregnancy or breast feeding * History of cutaneous or allergic reaction to iodine-based products of contrast dyes * Hemoglobin levels \<7mg/dL * Acute illness or hospitalization event within 3 months * Unable to stop NSAIDs * Comorbid conditions: MM, amyloidosis, pheochromocytoma, SCD, metastatic brain lesions, advanced kidney disease, liver dysfunction, endotoxemia, hyperthyroidism * Current use of nicotine or recreational drugs, chronic drinker Criteria for Cohort 2: Obese Participants without HFpEF Inclusion Criteria: * Adults 18-75 years old * eGFR \>= 60 mL/min/1.73m2 * BMI \> 35 kg/m2
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in measured GFR | 5 hours |
| Change in urine sodium excretion | 5 hours |
Countries
United States