Research Article

L-Theanine Administration Modulates the Absorption of Dietary Nutrients and Expression of Transporters and Receptors in the Intestinal Mucosa of Rats

Table 3

Effects of L-theanine administration on the transcript levels of AA transporters in rat intestine.

ItemTreatments (mg/kg BWd) value
050200400LinearQuadratic

Jejunum
 SLC1a11.001.71 ± 0.437.70 ± 0.501.12 ± 0.55NS<0.001
 SLC1a21.000.34 ± 0.060.63 ± 0.070.23 ± 0.07<0.001NS
 SLC1a51.001.77 ± 0.431.61 ± 0.383.49 ± 0.41<0.001NS
 SLC16a101.007.17 ± 0.845.25 ± 0.793.83 ± 0.68NS<0.001
 SLC7a11.008.40 ± 0.703.93 ± 0.908.88 ± 1.280.0017NS
 SLC7a91.006.40 ± 0.6010.9 ± 0.661.70 ± 0.60NS<0.001
Ileum
 SLC1a11.004.89 ± 0.355.11 ± 0.391.25 ± 0.39NS<0.001
 SLC1a21.001.47 ± 0.291.86 ± 0.241.02 ± 0.44NS0.01
 SLC1a51.001.45 ± 0.350.94 ± 0.374.45 ± 0.45<0.001<0.001
 SLC16a101.008.27 ± 0.2713.1 ± 0.631.52 ± 0.77NS<0.001
 SLC7a11.001.71 ± 0.341.18 ± 0.364.62 ± 0.45<0.001<0.001
 SLC7a91.001.93 ± 0.427.21 ± 0.522.09 ± 0.42<0.001<0.001

BW: body weight, SLC1a1: solute carrier family 1, member 1, SLC1a2: solute carrier family 1, member 2, SLC1a5: solute carrier family 1, member 5, SLC16a10: solute carrier family 16, member 10, SLC7a1: solute carrier family 7, member 1, SLC7a9: solute carrier family 7, member 9, and NS: not significant. Means within a row not bearing a common superscript letter differ (). Data were reported as mean ± SE.