Methionine, Inositol, and Choline Activate fat for burning
Given that skeletal muscle is the major site of carnitine storage within the body, and that maintaining hypercarnitinemia for 5h in the presence of hyperinsulinemia increases skeletal muscle TC accumulation (other Stephens Group studies), it is not unreasonable to suggest that this greater retention occurred mainly in this tissue. Given that the increase in muscle carnitine content following a single dose, or 2 weeks, of L-carnitine feeding in the presence of elevated circulating insulin is likely to be small due to the poor bioavailability of orally administered L-carnitine (less then 20%), muscle carnitine accumulation was estimated indirectly from measurements of plasma and urinary carnitine concentration
Therefore, we kept the DMSO final concentration 10 M, which is consistent with reports demonstrating similar observations 48,49,50
A single-cell RNA-Seq (scRNA-Seq) study analyzed primary NP and AF cells isolated from healthy adult discs and observed that receptor signaling pathway genes were highly expressed in the AF, whereas protein synthesis and ECM genes were highly expressed in the NP (Fernandes et al., 2020)