ABSTRACT
The pharmacologic action of Atractylodis Rhizoma and its effective constituents in digestive system includes mainly anti-ulcer activity,acceleration of gastric emptying,regulation of gastrointestinal propellant movement,antidiarrheat effect,choleretic effect,hepatoprotection,and promotion of digestive and absorptive function.Atractylodis Rhizoma decreases gastric acid secretion via blockade of H2-receptor,and inhibits overexpression of inflammatory cytokines in gastric tissues to produce anti-ulcer effect.Atractylodis Rhizoma increases gastric mucosal blood flow,and improves growth and reparation of gastric mucosa to produce anti-ulcer effect by blockade of 5-TH receptor,and elevating levels of gastrin and trefoil factor in serum and gastric tissues.Atractylodis Rhizoma accelerating gastric emptying and gastrointestinal propellant movement is relative to decreasing release of central corticotropin-releasing factor,and stimulating vagal nerve,and promoting secretion of gastrin and motilin,and inhibiting secretion of vasoactive intestinal peptide,and blocking 5-HT-3receptor,and increasing amount of interstitial cell of Cajal.
ABSTRACT
Objective To optimize the processing technology for Radix Puerariae simmered with wheat bran.Methods Orthogonal experiment L9(34) was chosen to optimize the technology. The external properties of Radix Puerariae simmered by wheat bran, the content of puerarin and the antidiarrheal effect on mice with diarrhea caused by folium sennae were used as indexes. Comprehensive weighted score was employed to optimize simmering Radix Puerariae with wheat bran technology.Results Processing time was the main affecting factor, while processing temperature had no significant effect. The optimum processing parameters were 100 g Radix Puerariae simmered with 30 g wheat bran at 160℃ for 2 minutes.Conclusion The optimum processing technology was simple and convenient, and with good reproducibility and operability. It is also helpful for the quality control of Radix Puerariae simmered with wheat bran.
ABSTRACT
Several species of Solanum are used in folk medicine to treat diarrhea. Therefore, the aim of this study was to investigate and compare possible antidiarrheal activity of methanol extracts from roots (Sast-MeOH R) and leaves (Sast-MeOH L) of Solanum asterophorum Mart., Solanaceae, in mice. Sast-MeOH R was shown to significantly and dose-relatedly inhibit the frequency of both solid (ED50 309.6±28.5 mg/kg) and liquid (ED50 152.1±32.5 mg/kg) stools. Conversely, Sast-MeOH L significantly inhibited solid stool frequency only when dosed at 500 and 750 mg/kg (48.7±7.4 and 42.3±9.8 percent, respectively), but also significantly and dose-relatedly inhibited liquid stools (ED50 268.4±35.2 mg/kg). Thus, Sast-MeOH R was twice as potent as Sast-MeOH L in diarrhea inhibition. Neither extracts (when dosed up to 500 mg/kg) inhibited intestinal transit. However, both extracts significantly and dose-relatedly inhibited intestinal fluids, and Sast-MeOH R (ED50 38.3±10.4 mg/kg) was again twice as potent as Sast-MeOH L (ED50 78.6±6.4 mg/kg). Results suggest that antidiarrheal effects of Sast-MeOH R and Sast-MeOH L involve changes on intestinal secretion. In addition, active metabolites with antidiarrheal activity may be more concentrated in the roots of this species. However further studies are needed to elucidate the action mechanism involved in this activity.