Compressed food with added functional oligopeptides improves performance during military endurance training.

Background And Objectives: Oligosaccharide or oligopeptide supplementation may have a significant impact on endurance performance. This study evaluated the effects of adding maltooligosaccharides (MO) or soy oligopeptides (SO) to compressed food (CF) on the physical response of soldiers to daily military training.

Methods And Study Design: Twelve soldiers were randomized to four diet groups: regular meals, CF, CFMO, and CFSO (crossover design).

[The regulatory effects of arginine on hepatic insulin-like growth factor-1 secretion in rats and its implication].

Objective: To explore the regulatory effect of arginine on the secretion of hepatic insulin-like growth factor-1 (IGF-I), and the mechanism of enhancing the immune function by arginine.

Methods: Wistar rats were randomly divided into normal control (NC), wound control (WC), and wound with arginine (Arg) groups, with 8 rats in each group. The rats in WC and Arg groups were inflicted with soft tissue trauma on the back.

[Effect of zinc on the corticosterone-induced injury of primary cultured rat hippocampal neurons].

The effect of zinc on the damage of primary cultured hippocampal neurons induced by corticosterone (CORT) was studied. Neuronal injury and expression of NMDA receptor subunits (NR1,NR2A,NR2B) mRNA were detected by using in situ staining and RT-PCR, respectively. Neurons treated with 5 micromol/L CORT for 24 h showed decreased survival rates and increased apoptotic rates compared with the controls; co-application of CORT and 10 or 100 micromol/L Zn(2+) attenuated apoptotic rates while 250 micromol/L Zn(2+) worsened CORT-induced neuronal injury.

[Effects of stress on hippocampal Glu-NMDAR pathway in rats and mechanism of zinc protection].

Aim: To observe the effects of stress on Glu uptake and NMDAR of hippocampus synaptosome in rats with different zinc status.

Methods: Stress model was established by photoelectric stimulus. The behaviors of rats were tested in open-field case.