Effects of exogenous hydrogen sulfide on apoptosis proteins and oxidative stress in the hippocampus of rats undergoing heroin withdrawal.

In this study, the mechanism of H(2)S protection in the hippocampus of heroin-treated rats was investigated. Male Sprague-Dawley rats were randomly divided into three groups: a saline group, a heroin and saline group, and a heroin and sodium hydrosulfide group. According to the principle of increasing heroin dosage daily, heroin withdrawal was precipitated on day 9 with an injection of naloxone (5 mg/kg, i.

[Orthogonal experiment of the extraction of triterpenoids from stems of Hyptis suaveolens with microwave].

Objective: To study the best technology of the extraction of triterpenoids from the stems of Hyptis suaveolens with microwave.

Methods: Orthogonal experiment was carried out to investigate 4 influential factors as follows: the time (A), the temperature (B), the solid fluid compared to (C), the NaOH density (D).

Results: The optimal conditions for microwave extraction were A1 B2 C3 D2.