Values are stated in nmol g−1 min−1. Influxes have been measured only in rats. The only available measurements of net fluxes in rats, shown in the italicized column, failed to reach statistical significance
* Data used by Pardridge [379] in his comparison of influxes and net fluxes
aIn some columns the values are for glutamine + asparagine as the assay used detected both
bRelease measured during nervous stimulation
1Banos et al. [369]
2Hawkins et al. [583]
3Mans et al. [584]
4Ennis et al. [415]
5Smith and Stoll [43]
6Brosnan et al. [378]
7Betz and Gilboe [365]
8Abdul-Ghani et al. [394]
9Pell and Bergman [585]
10Felig et al. [586]
11Lying-Tunell et al. [587]
12Eriksson et al. [588]
13Grill et al. [589]
14Strauss et al. [590]