• 대한본초학회지
• /
• 제26권4호
• /
• pp.101-107
• /
• 2011

Objectives : Socheongryong-Tang (小靑龍湯, SCRT) has been widely used to treat respiratory disease. In this study, we investigate the acute toxicity and safety of fermented Socheongryong-Tang extract. Methods : To evaluate the acute toxicity and safety, 0 (control group), 1250, 2500 and 5000 mg/kg of Socheongryong-Tang and fermented Socheongryong-Tang extracts were orally administered to male and female ICR mice. After single administration, we observed survival rates, general toxicity, changes of body weight for the 14 days and autopsy. Results : Compared with the control group, we could not find any toxic alteration in all treated group (1250, 2500 and 5000 mg/kg). Conclusions : $LD_{50}$ of Socheongryong-Tang and fermented Socheongryong-Tang extracts might be over 5000 mg/kg and it is safe to ICR mice.

• 대한한방내과학회지
• /
• 제27권1호
• /
• pp.126-137
• /
• 2006

In the present study, the author intended to investigate whether three oriental medical prescriptions named Jeongcheonhwadam-tang(JHT), Haengso-tang(HST), Socheungryong-tang(SCRT) significantly affect mucin release from cultured hamster tracheal surface epithelial (HTSE) cells. The results were as follows: (1) JHT significantly inhibited mucin release from cultured HTSE cells, without significant cytotoxicity : (2) HST significantly inhibited mucin release from cultured HTSE cells, without significant cytotoxicity : (3) SCRT significantly inhibited mucin release from cultured HTSE cells, without significant cytotoxicity : (4) JHT, HST chiefly inhibited the 'mucin' release and did not significantly affect the release of the other releasable glycoproteins with less molecular weight than mucin. These results suggest that the three herbal prescriptions specifically inhibit the release of mucin: (5) JHT significantly inhibited the expression levels of MUC SAC mRNA. This result suggests that JHT affects the synthesis of mucin at gene level in cultured HTSE cells. All agents showed no significant cytotoxicity. In view of these results, further investigation of the effects of JHT and HST are likely to be instrumental in yielding novel agents from oriental medical prescriptions which have inhibitory effects or expectorative effects on airway mucus secretion.

• 대한한의학회지
• /
• 제35권2호
• /
• pp.47-59
• /
• 2014

Objectives: Most drug interactions are attributed to the inhibition or induction of the activity of cytochrome P450s (CYP450). Although the regulation of CYP450s by drugs has been widely reported, there have been few studies on influence of traditional herbal formulas on the drug-metabolizing enzymes. Because herbal formulas have been used traditionally to treat various diseases and because herb-drug interactions are crucial factors determining therapeutic efficacies, a systematic evaluation of the effects of herbal formulas is important. Methods: The effects of Galgeun-tang (GGT, gegen tang), Gumiganghwal-tang (GMGHT, jiuweiqianghuo tang), Insampaedok-san (ISPDS, renshenbaidu powder), Samsoeum (SSE, shensu drink), Socheongryong-tang (SCRT, xiaoqinglong-tang) and Sosiho-tang (SSHT, xiaochaihu tang) that are traditional herbal formulas used to treat common cold, on drug-metabolizing enzymes were evaluated through an in vitro CYP3A4, CYP2D6, CYP2C19 and CYP2E1 inhibition assay to assess its interaction potential with synthetic drugs. The inhibitory effects of herbal formulas were characterized with $IC_{50}$ values. Results: These six herbal formulas inhibited the activities of CYP3A4, 2C19, 2D6 and 2E1, in a concentration-dependent manner. Among the six herbal formulas, GGT critically inhibited CYP2C19, CYP2D6 and CYP2E1. GMGHT also inhibited CYP2D6 and CYP2E1 to a greater extent than the other CYP450 isozymes. Additionally, SSE and SSHT may change the effects of medicines that depend primarily on the CYP2C19 and CYP2E1 pathways. On the other hand, ISPDS and SCRT were not inhibited CYP3A4, CYP2C19, CYP2D6 and CYP2E1-mediated metabolism. Conclusions: These findings provide useful information regarding the safety and effectiveness of herbal formulas.