Effects of infrasound at 8 Hz 90 dB/130 dB on NMDAR1 expression and changes in intracellular calcium ion concentration in the hippocampus of rats.

In the present study, we investigated the effect of infrasound on the expression of N-methyl-D-aspartate (NMDAR)1 as well as changes in intracellular calcium ion concentration ([Ca2+]i) in the hippocampus of rats. Sprague-Dawley (SD) rats were exposed for 2 h daily to infrasound at 8 Hz 90 dB or 130 dB, and NMDAR1 expression was examined on days 1, 7, 14, 21 and 28. The expression of NMDAR1 in the rat hippocampus upon exposure to infrasound at 8 Hz 90 dB sound pressure level (SPL) showed an initial decrease on day 1, an increase on days 7 and 14, a further decrease on day 21, and a return to normal levels on day 28.

Electro-acupuncture of Tsusanli and Shangchuhsu regulates gastric activity possibly through mediation of the vagus-solotary complex.

Background/aims: Acupuncture has been reportedly used to treat gastrointestinal diseases, however, its precise mechanism remains unknown.

Methodology: In our study, the effects and mechanism of electro-acupuncture (EA) at Tsusanli (ST 36), Shangchuhsu (ST 37) on regulation of gastric activity were observed.

Results: EA at Tsusanli showed that gastric electric change was the most obvious, with significantly higher frequency and wave amplitude compared with that of the Shangchuhsu group and other groups.

[Expression of beta-endorphin and micro-opioid receptor during wound healing process in rat with deep partial-thickness scald].

Objective: To observe the expression of beta-endorphin and micro-opioid receptor (MOR) during wound healing process in rat with deep partial-thickness scald.

Methods: Thirty-six Wistar rats were randomly divided into control( n = 6, without treatment) , and scald ( n = 30, with 5% TBSA deep-partial thickness scald) groups. Skin specimens from wound were harvested immediately after scald and on 3, 7, 14, 21 post-scald days( PSD) for the determination of 1-endorphin and MOR expression with immunofluorescent staining.

Electro-acupuncture of Foot YangMing regulates gastric activity possibly through mediation of the dorsal vagal complex.

Acupuncture at some specific acupoints of Foot Yangming can regulate gastric activity. However, its precise mechanism remains unknown. In our study, the effects and mechanism of electro-acupuncture (EA) at Tsusanli (ST 36), Shangchuhsu (ST 37) on the regulation of gastric activity were observed.