• 약학회지
• /
• 제38권5호
• /
• pp.525-529
• /
• 1994

Antiinflammatory activity of an 1% flurbiprofen transdermal gel was evaluated using the carrageenan-Induced rat paw edema method. The application of 50 mg of the gel on the rat hind paw, at various time intervals from 0 to 24 hrs before the carrageenan injection, significantly inhibited edema formation in all groups of dosed rats, indicating that the antiinflammatory activitv was maintained up to 24 hrs after the transdermal application of the 1% flurbiprofen gel. The topical $ED_{50}$ of flurbiprofen in the gel was 1.0 mg/kg, whereas the oral $ED_{50}$ of the drug in a suspension was 1.7 mg/kg.

• Journal of Pharmaceutical Investigation
• /
• 제11권2호
• /
• pp.11-15
• /
• 1981

Antler, deer horn, occupies a particular place in oriental folk medicine as so called tonic remedy. In order to study on the effects of Antler water extract on stress resistance in mice, quantitative response was measured for the change of spontaneous activity by chemical stress drugs in the control group or the Antler water extract pretreated group. Spontaneous activity in mice was measured by counting the number of interruptions of light. The results of experiment were summerized as follows; I) In case of administrating Antler water extract 10mg/kg, 20mg/kg, 50mg/kg, and 100mg/kg, no significant change was observed in spontaneous activity in comparison with the control group. II) In case of administrating Antler water extract for 5 days or 10 days, no significant change was observed in spontaneous activity by chemical stress drugs, caffein and chloropromazine, in comparison with the control group.

• 생약학회지
• /
• 제39권4호
• /
• pp.352-356
• /
• 2008

Acute toxicity of standardized extract of Salvia miltiorrhiza Bunge was examined using male and female ICR mice. Mice were treated with standardized extract the intragastrically at 5 mg/kg, 50 mg/kg, 500 mg/kg or 2,000 mg/kg and observed for two weeks. At the doses used, no mortality or abnormal clinical signs in animals were shown during at the observation period. Also there was no difference in net body weight gain, gross pathological findings at the terminal sacrifice among the groups mice treated with different doses of the test substance. The results suggested that acute oral toxicity of standardized extract of S. miltiorrhiza in mice is very low at the conditions employed in this study.

• Advances in Traditional Medicine
• /
• 제7권3호
• /
• pp.274-279
• /
• 2007

The crude ethanol extract of leaves of Sonneratia caseolaris Linn. (Sonneratiaceae) was screened for its antinociceptive and antidiarrhoeal activities. The extract produced significant writhing inhibition in acetic acid induced writhing in mice at dose of 250 and 500 mg/kg body weight (P<0.01) comparable to the standard drug diclofenac sodium at the dose of 25 mg/kg of body weight. When tested for its antidiarrhoeal effects on castor oil induced diarrhea in mice, it increased mean latent period and decreased the frequency of defecation significantly at the dose of 500 mg/kg body weight (P < 0.05) comparable to the standard drug loperamide at the dose of 50 mg/kg of body weight. The overall results tend to suggest the antinociceptive and antidiarrhoeal activities of the extract.

• Advances in Traditional Medicine
• /
• 제7권3호
• /
• pp.280-285
• /
• 2007

The methanol extract of leaves of Bruguiera gymnorrhiza (L.) Lam. (Rhizophoraceae) was screened for its antinociceptive and antidiarrhoeal activities. The extract produced significant inhibition in acetic acid-induced writhing in mice at dose of 250 and 500 mg/kg body weight (P < 0.001), comparable to the standard drug diclofenac sodium at the dose of 25 mg/kg of body weight (P < 0.001). When tested for its antidiarrhoeal effects on castor oil-induced diarrhea in mice, it increased mean latent period (P < 0.02) and decreased the frequency of defecation (P < 0.01) significantly at the dose of 500 mg/kg body weight, comparable to the standard drug loperamide at the dose of 50 mg/kg of body weight. The overall results tend to suggest the antinociceptive and antidiarrhoeal activities of the extract.

• 약학회지
• /
• 제27권3호
• /
• pp.215-220
• /
• 1983

To elucidate the effect of ginseng butanol fraction on streptozotocin-induced hyperglycemia, ginseng butanol fraction was administered before and after injection of streptozotocin(50mg/kg, i.v.), and glucose, insulin, and cholesterol levels in serum were determined at 96 hours after streptozotocin injection. Serum glucose, insulin levels were significantly decreased by administration of ginseng butanol fraction (100mg/kg, p.o.) at 7 hour and 7, 4, 1, hour(three times) before streptozotocin injection. The glucose levels were significantly decresed by administration of ginseng butanol fraction at 1 hour (100mg/kg) after strcptozotocin injection, and also serum glucose levels in groups of continuous administration of ginseng butanal fraction(100mg/kg) for 3 days after streptozotocin injection were markedly decreased than in group of single dose of ginseng butanol fraction. Ginseng butanol fraction has the protective and relieving action against streptozotocin-induced hyperglycemia.

• 한국식품저장유통학회지
• /
• 제19권2호
• /
• pp.315-321
• /
• 2012

본 연구는 김치에서 분리한 항진균 및 항세균 활성을 나타내는 $Lb.$ $plantarum$ AF1을 분리하여 이 균의 천연 식품보존제 및 사료보존제로서 사용 적합성 및 안전성을 평가하고자 단회 급성독성시험을 실시하였다. 급성독성시험을 위하여 경구 혹은 복강으로 1회 시험물질을 최고 용량(경구: 5,000 mg/kg, 복강: 2,500 mg/kg)으로 하여 ICR계통 암 수 마우스에게 용량별 각 군당 10마리씩 투여한 후 14일간의 일반증상, 사망률, 체중, 임상증상 및 육안적 소견을 관찰하였다. 단회 경구투여 혹은 복강주사한 후 모든 시험군에서 사망례가 관찰되지 않았으며, 시험동물은 시험 종료 시까지 계속 생존하여 평균치사량을 산출할 수 없었다. 복강 혹은 경구투여한 후 마우스의 체중변화에 있어서도 암 수 모두 대조군과 시료물질 투여군 사이에 유의성 있는 차이는 보이지 않았으며, 용량 의존적인 차이도 볼 수 없었다. 경구구투여 혹은 복강주사 단회 투여한 후 시험 종료한 다음 생존동물 모두를 부검하여 주요 장기의 육안적 소견을 관찰한 결과 대조군과 시료투여군 모두에서 외관상이나 내부장기에 어떠한 이상소견이나 병변이 관찰되지 않았다. 이상의 결과로부터 시험물질인 $Lb.$ $plantarum$ AF1는 경구투여 혹은 복강주사 시 ICR계통 암 수 마우스에서 독성학적인 변화가 관찰되지 않았으며, $LD_{50}$은 복강주사가 2,500 mg/kg, 경구투여가 5,000 mg/kg 이상인 저독성의 안전한 물질로 사료된다.

• 생명과학회지
• /
• 제26권1호
• /
• pp.83-90
• /
• 2016

본 연구는 방풍나물 에탄올 추출물을 이용하여 갱년기 유도 흰쥐의 혈중지질 수준의 향상, 항 혈소판 응집력에 미치는 효과를 검토하고자 하였다. 9주령 흰쥐를 각 군당 6마리씩 난소절제 모의 수술군, 난소절제군, 난소절제 후 방풍나물 추출물 50 mg/kg/day 및 200 mg/kg/day군의 4군으로 나누어 시술 후 6주간 추출물을 투여하며 사육하였다. 동물실험 결과 갱년기 유도로 인하여 증가된 혈청 중 중성지방 및 총콜레스테롤 함량은 방풍나물 추출물의 투여에 의해 저하되었다. 혈중 LDL-콜레스테롤 함량은 방풍나물 추출물 200 mg/kg/day 투여에 의해 난소절제 대조군(OVX-CON)에 비해 유의하게 감소하였다. 또한 방풍나물 추출물의 항 혈전능에 미치는 영향을 검토하기 위해, 난소절제로 인하여 혈 중 지질 함량이 증가한 상태에서 washed platelet을 분리하고 콜라겐으로 혈소판 응집을 유도하였다. 그 결과 방풍나물 추출물을 투여한 군이 OVX-CON군에 비해 혈소판 응집을 억제하는 것으로 나타났다. 응집율을 나타내는amplitude (%)는 OVX-CON군이 난소절제를 하지 않은 SHAM군과 비교하여 증가하였으나, 방풍나물 추출물 투여군인 OVX-LS50 및 OVX-LS200군 모두에서 유의적으로 감소하는 결과를 나타내었다. 비교하여 반응이 일어나기 시작하는 속도를 나타내는Slop은 SHAN군에 비해 난소절제로 인해 OVX-CON군이 증가하였으나, 방풍나물 추출물 투여군에서 OVX-CON군에 비해 유의적으로 감소하는 결과를 나타냈다. 응집시간을 나타내는 lag time (sec)은 난소절제에 의해 반응이 일어나는 시간이 짧아져, 혈소판 응집이 촉진되는 결과가 나타났다. 방풍 나물 추출물 투여한 경우, 200 mg/kg/day 투여군인 OVX-LS200군의 경우 OVX-CON군에 비해 lag time이 연장되어 혈소판 응집이 지연되는 결과가 나타났다. 난소절제 시(OVX-CON군) 에스트로겐 결핍으로 골 교체가 증가되어 SHAM군에 비해 혈청 중의 ALP 활성이 증가되었으나 유의성 있는 결과는 나타나지 않았다. 한편, 방풍나물 추출물 투여군에서는 난소절제로 인하여 그 활성이 증가된 OVX-CON군에 비해 활성이 감소하는 경향을 나타내었으며, 200 mg/kg/day 투여군의 경우 SHAM군보다 활성이 감소하여 난소 절제로 인한 골 손실 정도를 완화시켜준 것으로 추측된다. 연골의 경우 비 난소절제군인 SHAM군에 비해 난소절제군인 OVX-CON군의 collagen 함량이 감소하였으나, 방풍 에탄올 추출물을 투여함으로써 OVX-LS200 군에서 유의적으로 증가하였으며, 골 조직에서 또한 난소를 절제한 OVX-CON군이 난소를 절제하지 않은 SHAM군과 비교해 유의적으로 감소하는 결과가 나타났다. 한편, 난소를 절제한 후 방풍 추출물을 50 mg/kg/day 투여한 OVX-LS50군에서는 대조군에 비해 collagen 함량이 증가하는 경향이 나타났으며, 200 mg/kg/day 투여한 OVX-LS200군의 경우 유의적으로 증가하였다. 이상과 같이 방풍나물 추출물은 난소절제로 인하여 증가된 혈중 지질 조성 개선 및 에스트로겐 부족으로 인한 골 손실의 예방에 유익한 효과를 가질 것으로 기대된다.

• 약학회지
• /
• 제43권6호
• /
• pp.827-833
• /
• 1999

In this study, we have investigated the effect of Biphenyl Dimethyl Dicarboxylate (DDB), a synthetic analogue of Schizandrin C isolated from Schizandrae Fructus on cytochrome $P_450$ lAl and 2Bl, and the protective mechanism against $CCl_4-induced$ hepatotoxicity in rat liver. After DDB was administered into male rats for different periods of time (1~7 days) and with different doses (25, 50, 100 and 200 mg/kg), mRNA levels of CYPlAl were measured by polymearse chain reaction (PCR) and assayed the activities of CYPlAl specific ethoxyresorufin-O-dealkylase (EROD) and CYP2Bl specific benzyloxyresorufin-O-dealkylase (BROD). DDB treatment resulted in increase in CYP2Bl mRNA level and BROD activity, whereas there was no change in CYPlAl mRNA level and EROD activity. This effect of DDB was time-and dose-dependent and reached maximal level by 3 day and 200 mg/kg treatment. In addition, rats were pre-treated with DDB at doses of 25, 50 or 100 mg/kg daily for 4 days, 3-hr after final treatment on the 4th day, $CCl_4$ 0.3ml/kg was intraperitonially injected into the rats to examine the effect of DDB on $CCl_4-induced$ hepatic injury. Serum levels of ALT and AST were determined and histopathological examination was done in rat liver. Furthermore, we have measured hepatic microsomal malondialdehyde(MDA) level, a parameter of lipid peroxidation. Based on serum ALT level and lipid peroxidation, pretreatment of DDB, 50 mg/kg appeared the most protective effect against $CCl_4-induced$ heapatotoxity. These results indicate that DDB stimulates CYP2Bl mRNA level and BROD activity in time and dose dependent manner and suggest that protective effect of DDB on $CCl_4-induced$ hepatotoxicity may be mediated through free radical scavenging.

• Toxicological Research
• /
• 제18권1호
• /
• pp.13-22
• /
• 2002

In Korea, 2,320 tonnes of acetanilide were mostly wed as intermediates for synthesis in phar-maceuticals or additives in synthesizing hydrogen peroxide, varnishes, polymers and rubber. Only small amount of 120 kg were wed as a stabilizer for hydrogen peroxide solution for hair colouring agents in 1998. Readily available environmental or human exposure data do not exist in Korea at the present time. However, potential human exposures from drinking water, food, ambient water and in work places are expected to be negligible because this chemical is produced in the closed system in only one company in Korea and the processing factory is equipped with local ventilation and air filtering system. Acetanilide could be distributed mainly to water based on EQC model. This substance is readily biodegradable and its bioaccumulation is low. Acute toxicity of acetanilide is low since the L $D_{50}$ of oral exposure in rats is 1,959 mg/kg bw. The chemical is not irritating to skin, but slightly irritating to the eyes of rabbits. horn repeated dose toxicity, the adverse effects in rats were red pulp hyperplasia of spleen, bone marrow hyperplasia of femur and decreased hemoglobin, hematocrit and mean corpuscular hemoglobin concentration. The LOAEL for repeated dose toxicity in rats was 22 mg/kg/day for both sexes. Acetanilide is not considered to be genotoxic. In a reproductive/developmental toxicity study, no treatment-related changes in precoital time and rate of copulation, impregnation, pregnancy were shown in all treated groups. The NOAELs for reproduction and developmental toxicity (off-spring toxicity) are considered to be 200 mg/kg bw/day and 67 mg/kg bw/day, respectively. Ecotoxicity data has been generated in a limited number of aquatic species of algae (72 hr- $E_{b}$ $C_{50}$; 13.5 mg/l), daphnid (48hr-E $C_{50}$ > 100 mg/l) and fish (Oryzias latipes, 96hr-L $C_{50}$; 100 mg/l). Form the acute toxicity values, the predicted no effect concentration (PNEC) of 0.135 mg/1 was derived win an assessment factor of 100. On the basis of these data, acetanilide was suggested as currently of low priority for further post-SIDS work in OECD.in OECD.D.