• The Journal of Korean Medicine
• /
• v.32 no.6
• /
• pp.54-66
• /
• 2011

Objectives: The purpose of the present study was to investigate the antidiarrheal effects of Anjang-san in mice and rats. Methods: We measured the content of condensed tannin in Anjang-san extract, and observed the effects of Anjang-san on the small intestinal and colonic transport of mice, as well as on mice models of diarrhea induced by castor oil and $MgSO_4$, and on rat models of castor oil-induced enteropooling. Results: Anjang-san showed significant inhibitory effects on abnormally increased small intestinal transit induced by pyridostigmine and neostigmine, and inhibitory effects on large intestinal transit. Anjang-san also exhibited antidiarrheal effects on diarrhea induced by $MgSO_4$, and inhibitory effects on castor oil-induced enteropooling. Anjang-san also improved castor oil-induced diarrhea based on simple numbers without statistical significance. Conclusion: These results demonstrate that Anjang-san has significant antidiarrheal properties and attests to its possible utility in functional diarrheas, irritable bowel syndrome and other gastrointestinal disorders based upon further studies.

• The Journal of Pediatrics of Korean Medicine
• /
• v.10 no.1
• /
• pp.245-263
• /
• 1996

In order to investigate the effects of Yangsymtang on the activities of central nervous system, we observed the effects on convulsions induced by pentylenetetrazole, strychnine and picrotoxin. The sedative those on spontaneous motor activity and by rota rod method, the those on sleeping time induced by barbiturate and the alleviative those on pain induced by acetic acid and hind limb pressure also were analyzed. The results were as follows: 1. The solid extracts of Yangsymtang showed no anticonvulsive effects on convulsions induced by pentylenetetrazole, strychnine and picrotoxin. 2. As to the sedative effects by rota rod method, th solid extracts of Yangsymtang were recognized as significance(P<0.01). 3. The sleeping time induced by thiopental sodium was not prolonged by the oral administration of the solid extracts of Yangsymtang. 4. The oral administration of Yangsymtang did not influenced the sleeping induced by pentobarbital sodium significantly. 5. As to the effects on spontaneous motor activity, the oral administration of Yangsymtang made spontaneous motor activity decrease significantly(P<0.05). 6. The oral administration of Yangsymtang was significant on pain induced by acetic acid(P<0.001). 7. As to alleviative effects on pain induced by hind limb pressure. The solid extracts of Yangsymtang were not significant.

• Journal of Ginseng Research
• /
• v.41 no.3
• /
• pp.268-276
• /
• 2017

Background: UV-B-exposed keratinocytes secrete various paracrine factors. Among these factors, basic fibroblast growth factor (bFGF) stimulates the proliferation of melanocytes. Ginsenosides, the major active compounds of ginseng, are known to have broad pharmacological effects. In this study, we examined the antiproliferative effects of ginsenosides on bFGF-induced melanocyte proliferation. Methods: We investigated the inhibitory effects of Korean Red Ginseng and ginsenosides from Panax ginseng on bFGF-induced proliferation of melan-a melanocytes. Results: When melan-a melanocytes were treated with UV-B-irradiated SP-1 keratinocytes media, cell proliferation increased. This increased proliferation of melanocytes decreased with a neutralizing anti-bFGF antibody. To elucidate the effects of ginsenosides on melanocyte proliferation induced by bFGF, we tested 15 types of ginsenoside compounds. Among them, Rh3, Rh1, F1, and CK demonstrated antiproliferative effects on bFGF-induced melanocyte proliferation after 72 h of treatment. bFGF stimulated cell proliferation via extracellular signal-regulated kinase (ERK) activation in various cell types. Western blot analysis found bFGF-induced ERK phosphorylation in melan-a. Treatment with Rh3 inhibited bFGF-induced maximum ERK phosphorylation and F1-delayed maximum ERK phosphorylation, whereas Rh1 and CK had no detectable effects. In addition, cotreatment with Rh3 and F1 significantly suppressed bFGF-induced ERK phosphorylation. Western blot analysis found that bFGF increased microphthalmia-associated transcription factor (MITF) protein levels in melan-a. Treatment with Rh3 or F1 had no detectable effects, whereas cotreatment with Rh3 and F1 inhibited bFGF-induced MITF expression levels more strongly than a single treatment. Conclusion: In summary, we found that ginsenosides Rh3 and F1 have a synergistic antiproliferative effect on bFGF-induced melan-a melanocyte proliferation via the inhibition of ERK-mediated upregulation of MITF.

• YAKHAK HOEJI
• /
• v.43 no.5
• /
• pp.659-664
• /
• 1999

To investigate the difference of contractile mechanism between KCI and phenylephrine-induced contraction, we observed effects of $Ca^{2+}$ antagonists and protein kinase inhibitors on aorta contraction of rats. Verapamil dose-dependently inhibited the contraction induced by KCI and phenylephrine, the inhibitory effect of verapamil was more potent in KCI-induced contraction than phenylephrine-induced contraction. Econazole and TMB-8 significantly inhibited CKI-induced contraction but did not inhibit phenylephrine-induced contraction. Staurosporine dose-dependently inhibited both KCI and phenylephrine-induced contraction. Genistein and calmodulin antagonists (W-7 and trifluoperazine) also inhibited both contraction in a dose dependent manner. However, the inhibitory effects of genistein and calmodulin antagonists were more potent in phenylephrine-induced contraction than KCI-induced contraction. These results suggest that involvements of $Ca^{2+}$ channel and protein kinase in rat aorta contraction were dependent on agonist causing aorta smooth muscle contraction.

• The Journal of Korean Medicine
• /
• v.25 no.1
• /
• pp.21-30
• /
• 2004

Objectives : We aimed to identify the effects of Heechum-san(HCS) On the thrombosis. Methods : We measured the protective effects of HCS on pulmonary thromboembolism induced by collagen and epinephrine, intravascular coagulation induced by dextran. Results : HCS showed a effective inhibition on coagulation of platelets induced by ADP or epinephrine. HCS showed survival rate of 14.28% on pulmonary thrombo- embolism caused by collagen and epinephrine. On the measure of the blood flow rate induced by the thrombus, in vivo HCS accelerated the blood flow rate. Conclusions : HCS has antithrombotic effects.

• Journal of Ginseng Research
• /
• v.21 no.3
• /
• pp.169-173
• /
• 1997

The effects of extract mixture of red ginseng and steamed Rehmaniae radix prepared for antidiabetic activity was examined in streptozotocin-Induced diabetic rats. The increased blood glucosec level in the streptozotocin-induced diabetic rats was significantly decreased by the treatment with the mixture (800, 1600 mg/kg, p.o.). However, neither red ginseng extract nor steamed Rehmaniae radix extract alone showed significant hypoglycemic effects. The mixture prevented a weight loss in streptozotocin-induced diabetic rats. These results suggest that the mixture has the relieving action against streptozotocin-induced hyperglycemia.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.20 no.2
• /
• pp.410-413
• /
• 2006

This study was done to investigate the protective effects of Iljungbogan-Tang on acute hepatotoxicity of rats induced by $CCL_4$ and acetaminophen. The subject animals were divided into 3 groups : control group(administrated 0.5% carboxymethyl cellulose), sample group(30, 100, 300, 600mg/kg administrated), positive control group (administrated silymarine), Acute hepatotoxicity of rats were induced by $CCL_4$ and acetaminophen, and the serum transaminase(AST, ALT) were measured for enzyme activities. The inhibitory effects on the serum AST activities were noted in sample group(100, 300, 600mg/kg administrated) on hepatotoxicity of rats induced by $CCL_4$. The inhibitory effects on the serum AST, ALT activities were noted in sample group(30mg/kg administrated) on hepatotoxicity of rats induced by acetaminophen. The inhibitory effects on the serum AST activities were noted in sample group(600mg/kg single dose administrated) on hepatotoxicity of rats induced by acetaminophen. It is considered that Iljungbogan-Tang has protective effects against hepatotoxicity in rats induced by $CCL_4$ and acetaminophen. So it is required to study about the actions of mutual relation of medicines and patho-mechanism through experiment.

• Journal of Ginseng Research
• /
• v.33 no.4
• /
• pp.294-304
• /
• 2009

Ginsenosides are among the most well-known traditional herbal medicines frequently used for the treatment of various symptoms in South Korea. The neuroprotective effects of ginsenoside $Rg_3$ (G-$Rg_3$) on cholesterol-oxide-(CO)-induced neurotoxicity were investigated through the analyses of rat brains. The recently accumulated reports show that ginseng saponins (GTS), the major active ingredients of Panax ginseng, have protective effects against neurotoxin insults. In the present study, the neuroprotective effects of G-$Rg_3$ on CO-induced hippocampal excitotoxicity were examined in vivo. The in-vitro studies using rat cultured hippocampal neurons revealed that G-$Rg_3$ treatment significantly inhibited CO-induced hippocampal cell death. G-$Rg_3$ treatment not only significantly reduced CO-induced DNA damage but also attenuated CO-induced apoptosis. The in-vivo studies that were conducted revealed that the intracerebroventricular (i.c.v.) pre-administration of G-$Rg_3$ significantly reduced i.c.v. CO-induced hippocampal damage in rats. To examine the mechanisms underlying the in-vitro and in-vivo neuroprotective effects of G-$Rg_3$ against CO-induced hippocampal excitotoxicity, the effect of G-$Rg_3$ on the CO-induced elevations of the apoptotic cells in cultured hippocampal cells was examined, and it was found that G-$Rg_3$ treatment inhibited CO-induced apoptosis. The histopathological evaluation demonstrated that G-$Rg_3$ significantly diminished the apoptosis in the hippocampus and also spared the hippocampal CA1, CA3, and dentate gyrus neurons. G-$Rg_3$ also significantly improved the CO-caused behavioral impairment. G-$Rg_3$ itself had no effect, however, on the CO-induced inhibition of succinate dehydrogenase activity (data not shown). These results collectively indicate the G-$Rg_3$-induced neuroprotection against CO in rat hippocampus. With regard to the wide use of G-$Rg_3$, this agent is potentially beneficial in treating CO-induced brain injury.

• Journal of Sasang Constitutional Medicine
• /
• v.8 no.2
• /
• pp.219-238
• /
• 1996

Effects of Taeyeumjoweetang on the obestity of mouse induced by gold thioglucose. It is researched to elucidate the effects of Taeyeumjoweetang on the obesity of mouse induced by gold thioglucose and the differentiation and growth of preadipocyte, 3T3-L1 cell. The result were as follows. 1. Taeyeumjoweetang extract improved the blood level of transaminase changed by the obesity of mouse induced by gold thioglucose. 2. Taeyeumjoweetang extract inhibited the increase of liver fat and body fat induced by the obesity of mouse induced by gold thioglucose. 3. Taeyeumjoweetang extract inhibited the increase of body weight induced by the obesity of mouse induced by gold thioglucose. 4. Taeyeumjoweetang extract inhibited the growth of undifferentiate preadipocyte 3T3-L1. 5. Taeyeumjoweetang extract showed the effects of inhibition on the differentiation of preadipocyte 3T3-L1. The above results suggested that the Taeyeumjoweetang extract may be used on the obesity induced by the overgrowth and differentiation of adipocyte, and the accumulation of fat in liver and body.

• Wind and Structures
• /
• v.31 no.5
• /
• pp.459-472
• /
• 2020

This study focused on the non-synoptic, tornado-like wind-induced effects on flexible horizontal structures that are extremely sensitive to winds. More specifically, the nonuniform, intensive vertical wind-velocity and transient natures of tornado events and their effects on the global behavior of a long-span bridge were investigated. In addition to the static part in the modeling of tornado-like wind-induced loads, the motion-induced effects were modeled using the semi-empirical model with a two-dimensional (2-D) indicial response function. Both nonlinear wind-induced static analysis and linear aeroelastic analysis in the time domain were conducted based on a 3-D finite-element model to investigate the bridge performance under the most unfavorable tornado pattern considering wind-structure interactions. The results from the present study highlighted the important effects due to abovementioned tornado natures (i.e., nonuniform, intensive vertical wind-velocity and transient features) on the long-span bridge, and hence may facilitate more appropriate wind design of flexible horizontal structures in the tornado-prone areas.