The purpose of this research is to learn about how salt in the diet influences blood pressure in young adults who were born prematurely.
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Proportion with salt sensitivity of blood pressure at baseline via ABPM
Timeframe: Day 7 to 14
Proportion with salt sensitivity of blood pressure after allopurinol via ABPM
Timeframe: Day 49 to 56
Salt sensitivity index at baseline
Timeframe: Day 7 to 14
Salt sensitivity index after allopurinol
Timeframe: Day 49 to 56
Proportion with salt sensitivity of blood pressure at baseline via casual blood pressure
Timeframe: Day 7 to 14
Proportion with salt sensitivity of blood pressure after allopurinol via casual blood pressure
Timeframe: Day 49 to 56
High blood pressure at baseline via ABPM
Timeframe: Day 0
Hypertension at baseline via ABPM
Timeframe: Day 7
High blood pressure at baseline via casual blood pressure
Timeframe: First 3 study visits
Hypertension at baseline via casual blood pressure
Timeframe: First 3 study visits
Serum uric acid at baseline
Timeframe: Day 0
Change in serum uric acid with dietary Na+ intervention
Timeframe: Day 7 to 14
Change in serum uric acid with dietary Na+ intervention on allopurinol
Timeframe: Day 42 to 56
Pulse wave velocity at baseline
Timeframe: Day 0
Augmentation index at baseline
Timeframe: Day 0
Heart rate variability at baseline
Timeframe: Day 0
Baroreflex sensitivity at baseline
Timeframe: Day 0
Angiotensin-(1-7) at baseline
Timeframe: Day 0
Angiotensin II at baseline
Timeframe: Day 0
Klotho at baseline
Timeframe: Day 0
Creatinine at baseline
Timeframe: Day 0
Cystatin C at baseline
Timeframe: Day 0
eGFR at baseline
Timeframe: Day 0