Research Article

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

Table 2

Effects of L-theanine administration on average daily gain and biochemical parameters in serum of rats.

ItemTreatments (mg/kg BWd) value
050200400LinearQuadratic

Average daily gain, g/d5.24 ± 0.176.01 ± 0.176.15 ± 0.175.98 ± 0.170.038<0.01
Glucose, mM5.65 ± 0.295.31 ± 0.295.74 ± 0.294.77 ± 0.30NSNS
Insulin, uIU/mL43.2 ± 2.1841.7 ± 2.1826.3 ± 2.2619.0 ± 3.08<0.001NS
Cholesterol, mM2.23 ± 0.092.08 ± 0.092.13 ± 0.092.05 ± 0.09NSNS
Triglyceride, mM1.23 ± 0.071.21 ± 0.071.02 ± 0.071.16 ± 0.07NSNS
NEFA, mM1.27 ± 0.131.35 ± 0.101.45 ± 0.111.31 ± 0.10NSNS
Urea, mM5.42 ± 0.164.85 ± 0.165.70 ± 0.165.38 ± 0.17NSNS
LDL, mM0.339 ± 0.020.341 ± 0.020.354 ± 0.020.347 ± 0.02NSNS
HDL, mM1.74 ± 0.061.52 ± 0.061.60 ± 0.061.60 ± 0.06NSNS

BW: body weight, NEFA: non-esterified fatty acids, LDL: low-density lipoprotein, HDL: high-density lipoprotein, and NS: not significant. Means within a row not bearing a common superscript letter differ (). Data were reported as mean ± SE. Data of average daily gain were cited by Tong et al. (2016).