The NAD-brain study will perform a parallel assessment of NAD replenishment therapy (NRT) pharmacokinetics in the blood and brain of healthy human subjects. A total of 6-10 healthy individuals (3-5 men and 3-5 women) will undergo repeated blood sampling and 31P-MRS brain scans during two 20-day periods, each of which will start with 8 days of daily intake of Nicotinamide Riboside (NR) 600mg x 2, or Nicotinamide Mononucleotide (NMN) 600mg x 2. The two 20-day periods will be 14 days apart to allow for washout of the previous compound. Blood will be analyzed for NAD-metabolites. The simultaneous change in NAD-metabolism over time in blood and brain will be assessed and blood and brain pharmacokinetics for NRT in humans will be established.
The objective of the NAD-brain study is to determine the blood and brain pharmacokinetics of NAD replenishment therapy (NRT) using Nicotinamide Riboside (NR) or Nicotinamide Mononucleotide (NMN).