• 제목/요약/키워드: LD$^{50}$

검색결과 745건 처리시간 0.032초

Mouse에 있어서 시험물질 청심연자탕(淸心蓮子湯) 추출액의 급성독성 시험 (Acute Toxicity Study on Cheongsimyeonja-tang in Mice)

  • 마진열;황대선;서창섭;이시우;김종열;신현규
    • 사상체질의학회지
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    • 제22권1호
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    • pp.59-65
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    • 2010
  • 1. Objectives: The aim of this study is data analysis for acute toxicity and safety of Cheongsimyeonja-tang. 2. Methods: We investigated the acute toxicity for water-extracted Cheongsimyeonja-tang. Fifty five male and female mice were observed for 14 days after one day oral administration of Cheongsimyeonja-tang at the respective doses of 0 (control group), 2560, 3200, 4000 and 5000 mg/kg. 3. Results: We observed survival rates, general toxicity, change of body weight and autopsy. In animals administered with Cheongsimyeonja-tang, there were nither dead animals nor significant changes of body weights. In addition, no differences were found between control and treated groups in clinical sign and autopsy. 4. Conclusion: The data confirmed that Cheongsimyeonja-tang is free from the toxicity and safety problems in treated groups. Compared with the control group, we could not find any toxic alteration in all treated groups(2560, 3200, 4000 and 5000 mg/kg). Lethal Dose 50 (LD50) value for mice was more than 5000 mg/kg per oral for both male and females. It suggest that Cheongsimyeonja-tang in mice is considered to be safe.

5-플로우로우라실 프로드럭의 제조, 물리화학적 성질 및 항암효과 (Synthesis, Physicochemical Properties and Antitumor Activity of 5-Fluorouracil Prodrugs)

  • 지웅길;이계원
    • 약학회지
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    • 제40권3호
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    • pp.279-292
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    • 1996
  • To assess their stability as a prodrug of 5-fluorouracil (5-FU), four N-acyloxycarbonyl derivatives (1-(N-tert-butyloxycarbonyl)glycyloxymethyl-5-FU :BGFU, 1-(N-tert-butyloxycar bonyl)-leucyloxymethyl-5-FU:BLFU, 1-(N-tert-carbobenzyloxymethyl) glycyloxymethyl-5-FU:CGFU and 1-(N-tert-carbobenzlyoxymethyl)leucyloxymethyl-5-FU:CLFU) possessing differently protected amino acids, and two acetic acid derivatives (5FU-1-acetylpentane:FUAP and 5-FU-1-acetylhexane:FUAH) were synthesized and their physicochemical properties, hydrolysis kinetics, acute toxicity and antitumor activity were evaluated. The lipid-water partition coefficients of six 5-FU prodrugs were higher than that of 5-FU and their aqueous solubilities were in the following rank order; BGFU>FUAP>CGFU>BLFU>CLFU${\simeq}$FUAH. The hydrolysis of N-acyloxycarboyl derivatives, greater at higher pH, was enhanced in presence of liver homogenate or human plasma. Meanwhile, acetic acid ester derivatives, very stable, were hydrolyzed by liver homogenate. Absorption rate constants were 0.181, 0.121, 0.111, 0.168, 0.168, 0.116 and 0.125 $hr^{-1}$ for 5-FU, BGFU, BLFU, CGFU, CLFU, FUAP and FUAH, respectively. The cytotoxicity of N-acyloxycarbonyl derivatives was 4 to 5 times lower than that of 5-FU, but that of acetic acid ester derivatives was negligeble. The $LD_{50}$ values were 204, 325.97 (133.59, amount as 5-FU), 708.16 (262.13), 663.50 (211.77), 382.33 (192.54) and 272.33 (130.09) mg/kg for 5-FU, BGFU, CGFU, CLFU, FUAP and FUAH, respectively. While N-acyloxycarbonyl derivatives showed enhanced antitumor activity and therapeutic ratio (3.30, 3.06, 4.19, 3.11 and 1.81 for BGFU, BLFU, CGFU, CLFU and 5-FU, respectively), FUAH and FUAP showed a smaller therapeutic ratio (0.79 and 0.83).

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홍화자약침(紅花子藥鍼)의 급성(急性) 아급성(亞急性) 독성실험(毒性實驗) 및 Sarcoma-180 항암효과(抗癌效果)에 관(關)한 실험적(實驗的) 연구(硏究) (The Study on Acute and Subacute Toxicity and Sarcoma-180 Anti-cancer Effects of Carthami Tinctor-Fructus Herbal-acupuncture(CF))

  • 안창석;권기록;이선구
    • 대한약침학회지
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    • 제5권1호
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    • pp.7-26
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    • 2002
  • Objective: The purpose of this study was to investigate acute and subacute toxicity and sarcoma-180 anti-cancer effects of herbal acupuncture with Carthami- Tinctorii fructus (CF) in mice and rats. Method: Balb/c mice were injected intraperitoneally with Carthami - Tinctorii fructus (CF) for $LD_{50}$ and acute toxicity test. Sprague Dawley rats were injected intraperitoneally with Carthami- Tinctorii fructus (CF) for subacute toxicity test. The Carthami- Tinctorii fructus herbal-acupuncture was injected on Chung-wan (CV12) of mice with Sarcoma-180 cancer cell line. Results: 1. $LD_{50}$ was uncountable as none of the subjects expired during the test. 2. In acute toxicity test, toxic symptoms were not detected, but the body weight of mice was increased in treatment Ⅰ, treatment Ⅱ groups, compared to the normal group.(p<0.05) 3. In acute toxicity test of serum biochemical values of mice, glucose was increased in treatment Ⅰ and treatment Ⅱ groups, total cholesterol was increased in treatment I group, GOT was decreased in treatment Ⅱ group, and GPT was decreased in treatment Ⅰ group, compared to the normal group.(p<0.05) 4. The clinical signs and the body weight of mice treated with 0.1 cc, 0.2cc Carthami- Tinctorii fructus (CF) were not affected during the subacute toxicity test. 5. In subacute toxicity test, treatment groups didn't show significant changes in complete blood count test (CBC) of rats, compared to the nonnal group.(p<0.05) 6. In subacute toxicity test of serum biochemical values of rats, uric acid was decreased in treatment Ⅰ and treatment Ⅱ groups, compared to the nonnal group, triglyceride was decreased in treatment I group, compared to the normal group, GOT and GPT were decreased in treatment I and treatment Ⅱ groups, and alkaline phosphatase was decreased in treatment Ⅰ and treatment Ⅱ groups, compared to the normal group.(p<0.05) 7. Median survival time was increased in all the treatment groups for Sarcoma-180 cancer cell treated with Carthmni- Tinctorii fructus (CF).(p<0.05) 8. Natural killer cell activity was significantly increased in all the treatment groups compared to the normal group.(p<0.05) 9. Interleukin-2 productivity was decreased in treatment Ⅰ and treatment Ⅱ groups.(p<0.05) Conclusion: According to the results, we can conclude herbal-acupuncture of Carthami-Tinctoriifructus (CF) caused negligible toxkity, and had anti-tumor effects in mice.

정맥주입용(靜脈注入用) 산양산삼(山養山蔘) 증류약침(蒸溜藥鍼)의 급성(急性).아급성(亞急性) 독성실험(毒性實驗) 및 Sarcoma-180 항암효과(抗癌效果)에 관(關)한 실험적(實驗的) 연구(硏究) (The Study on Acute and Subacute Toxicity and Anti-Cancer Effects of cultivated wild ginseng Herbal acupuncture)

  • 권기록;조아라;이선구
    • 대한약침학회지
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    • 제6권2호
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    • pp.7-27
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    • 2003
  • Objective : The purpose of this study was to investigate acute and subacute toxicity and sarcoma-180 anti-cancer effects of herbal acupuncture with cultivated wild ginseng (distilled) in mice and rats. Method : Balb/c mice were injected intravenous with cultivated wild ginseng herbal acupuncture for $LD_{50}$ and acute toxicity test. Sprague-Dawley rats were injected intravenous with cultivated wild ginseng herbal acupuncture for subacute toxicity test. The cultivated wild ginseng herbal-acupuncture was injected at the tail vein of mice. Results : 1. In acute $LD_{50}$ toxicity test, there was no mortality thus unable to attain the value. 2. Examining the toxic response in the acute toxicity test, there was no sign of toxication. 3. In acute toxic test, running biochemical serum test couldn't yield any differences between the control and experiment groups. 4. In subacute toxicity test, there was no sign of toxication in the experimental groups and didn't show any changes in weight compared to the normal group. 5. In subacute toxicity test, biochemical serum test showed significant increase of Total albumin, Albumin, and Glucose in the experimental group I compared with the control group. Significant decrease of GOT, ALP, GPT, and Triglyceride were shown. In experiment group II, only Glucose showed significant increase compared with the control group. 6. Measuring survival rate for anti-cancer effects of Sarcoma-180 cancer cell line, all the experimental groups showed significant increase in survival rate. 7. Measuring NK cell activity rate, no significant difference was shown throughout the groups. 8. Measuring Interleukin-2 productivity rate, all the experimental groups didn't show significant difference. 9. For manifestation of cytokine mRNA, significant decrease of interleukin-10 was witnessed in the experimental group compared to the control group. Conclusion : According to the results, we can conclude cultivated wild ginseng herbal acupuncture caused negligible toxicity, and had anti-tumor effects in mice.

K-약침(藥鍼)의 급성(急性) 아급성(亞急性) 독성실험(毒性實驗) 및 항암효과(항암효과)에 관(關)한 실험적(實驗的) 연구(硏究) (The Study on Acute Subacute Toxicity and Anti-cancer Effect of K-herbal-acupuncture)

  • 김광호;권기록
    • 대한약침학회지
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    • 제6권1호
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    • pp.76-94
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    • 2003
  • Objectives : The purpose of this study was to investigate Acute$\cdot$Subacute Toxicity and Anti-cancer Effect of K-Herbal-acupuncture in mice and rats. Methods : Balb/c mice were injected intraperitoneally with K-herbal-acupuncture for $LD_{50}$ and acute toxicity test. Sprague-Dawley rats were injected intraperitoneally with K-herbal-acupuncture for subacute toxicity test. K-Herbal-acupuncture was injected on abdomen of mice with S-180 cancer cell line. Result : 1. $LD_{50}$ of K-Herbal-acupuncture was limited $4{\times}10^{-3}$ml/kg~$2{\times}10^{-3}$ml/kg by the test. 2. In acute toxicity test, all of mice were down to the moving reflex, but the weight of mice was increased in treatment group, compared with the normal group. (P<0.05) 3. In acute toxicity test of serum biochemical values of mice, glucose was increased in treatment II group, total cholesterol was increased both treatments.(P<0.05) 4. In subacute toxicity test, the clinical signs of toxication was down to the moving reflex, but it is not severe like acute toxicity test, and observed weight loss at the treatments. 5. In subacute toxicity test, liver weight was decreased compared with the normal group. (P<0.05) 6. In subacute toxicity test of complete blood count test (CBC) of rat, HCT was decreased in treatments, compared with the normal group.(P<0.05) 7. In subacute toxicity test of serum biochemical values of rat, uric acid and triglyceride were decreased, and glucose was increased in treatment groups compared with the control group. (P<0.05) 8. Median survival time was increased about $45\%$ in treatment groups compared with the control group.(P<0.05) 9. Natural killer cell activity was increased in B16F10 lung cancer model, but it was not in sarcoma-180 abdomen cancer. 10. In interleukin-2 productivity test, treatment groups didn't show significant change in lung cancer and abdomen cancer, compared with the normal group.(P<0.005) 11. In making an examination of metastatic cancer with the naked eye, melanoma metastasized in the Lung of C57BL/6 mice. The treated group showed more Melanoma than the control in the numbers and volume. Conclusion : According to the result, K-herbal-acupuncture need further study to know the function and effect in cancer.

황토유황합제의 pH차이에 따른 급성독성평가 (Acute Toxicity Evaluation of Loess-sulfur Complex in different pH)

  • 백민경;심창기;이제봉;오진아;정미혜;김두호;김민정;지형진;최은지;조현조
    • 농약과학회지
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    • 제16권4호
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    • pp.369-375
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    • 2012
  • 황토유황합제는 우리나라에서 농작물 생산에 살균살충작용을 가지는 것으로 알려져 친환경유기농자재로 널리 사용되고 있으나, 알칼리성이 강하여 작물에 약해를 보일 뿐 아니라 농업자의 피부 및 안점막에 자극성이 있는 것으로 보고되고 있어 제품으로서의 안전성에 대한 우려가 높다. 본 연구에서는 작물의 약해를 저감하기 위해 pH를 조정하여 제조한 황토유황합제 3종(pH 9, pH 10, pH 11)의 인축 급성독성시험을 시행하여 인체 안전성을 확인함으로써 친환경유기농자재 개발시 최적의 제품 선정에 기초자료로 활용하고자 하였다. 랫드를 이용한 급성경구독성시험 결과 황토유황합제는 $LD_{50}$이 2,000 mg/kg b.w. 이상이었으며, 급성경피독성시험 결과 또한 모두 4,000 mg/kg b.w. 이상인 저자극성으로 분류되었다. 피부 및 안점막자극성 시험 결과에서도 모두 저자극성으로 구분되었으며 pH 9~11 범위에서 제품간 독성분류의 차이는 나타나지 않았다.

갯쑥부쟁이(Heteropappus hispidus (Thunb.))의 감마방사선 감수성과 M1 세대 형질변동 특징 (Gamma Radiation Sensitivity and Quantitative Characters in M1 Generation of Heteropappus hispidus (Thunb.))

  • 오병권;홍경애;송성준;이선주;이영일;유장걸
    • 한국환경농학회지
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    • 제22권4호
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    • pp.294-299
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    • 2003
  • 제주도에서 자생하는 갯쑥부쟁이(Heteropappus hispidus (Thunb.))에 감마선을 10, 20, 40, 80, 120, 160, 200, 300, 400 Gy 수준으로 나누어서 조사한 뒤 발아율 및 발아 30일 후의 본엽 출현율, $LD_{50}$, 본엽길이, 줄기부분의 안토시아닌 색소 형성 유무, 생육 60일 후의 로젯형 엽, multi-shoot 형성율, 초장, 개화 결실률 등의 주요 양적형질들을 생존개체를 대상으로 실시하였다. 120Gy 까지의 발아율은 88.5%로 대조구와 큰 차이를 보이지 않았으나 160Gy 이상에서부터는 급격히 감소하여 치사선량($LD_{50}$)은 160 Gy 범위 정도였다. 또한, 본엽 출현율과 그 길이는 조사선량이 높아질수록 억제되었다. 안토시아닌 색소 형성은 조사선량이 높을수록 대조구 2%에서 30%로 높아졌으며 로젯형도 고선량 처리구에서 발생하였다. Multi-shooting은 80Gy 이상일 때부터 나타났으며 multi-shooting을 형성하는 개체들은 초장은 짧고 줄기는 가늘게 다발형으로 자라는 특성이 있어서 만일 형질이 고정된다면 화분 관상용 개체로 선발하기에 적합하였다. 특히, 조사선량이 증가됨에 따라서 안토시아닌 색소 형성, 로젯형 개체, multi-shoot등의 개체가 많이 출현되었는데 이는 돌연변이 유기의 선발지표가 될 수 있을 것으로 보인다.

오공약침(蜈蚣藥鍼)의 안전성(安全性)에 관한 연구(硏究) (The Study on Safety of Scolopendrid Aqua-acupuncture)

  • 임승일;김성남;소기숙;최회강;임정아;이상관;문형철;소경순;김성철
    • 대한약침학회지
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    • 제7권1호
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    • pp.37-51
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    • 2004
  • Objective : Recently scolopendrid aqua-acupuncture has been a good effect on pain control but it has not been known about clinical safety. The purpose of this study was to investigate acute toxicity of scolopendrid aqua-acupuncture. Method : In order to prove the clinical safety of scolopendrid aqua-acupuncture, We have observed a bacteriological examination and clinical pathology test after scolopendrid aqua-acupuncture treatment. Balb/c mice were injected intravenous with Scolopendrid aquaacupuncture treatment for $LD_{50}$ and acute toxicity test. We analyzed physical reaction(side effect)and clinical pathology test before and after Scolopendrid aqua-acupuncture treatment of mice and 20 patients suffering from pain, who admitted department of Acupunture and Moxibustion, College of Oriental Medicine, Won-Kwang University Kwangju hospital. Results : In the Blood agar plate and Nutrient agar plate, a bacteriological examination did not show a bacillus. In acute $LD_{50}$ toxicity test, there was no mortality thus unable to attain the value. Examining the toxic response in the acute toxicity test, there was no sign of toxication. In acute toxic test, running biochemical serum test couldn't yield any differences between the control and experiment groups. In the 20 patients treated with Scolopendrid aqua-acupuncture, hematologic test did not show remarkable change. In the 20 patients treated with Scolopendrid aqua-acupuncture, Liver function test(AST, ALT, ALP) showed a slight decrease on the contrary, and abnormal rate showed a decrease of 5.0% compared with previous study. Reanl function test(BUN, Cr) and abnormal rate showed a decrease of 5.0% compared with previous study. In the 20 patients treated with Scolopendrid aqua-acupuncture, Electrolyte were normal range before and after treatment. In the Urine analysis of 20 patients, Leukocyte, Protein, Glucose, Keton, Bilirubin, U-bilinogen were not detected before and after Scolopendrid aqua-acupuncture treatment, and the rest almost made no difference.

살충제(殺蟲劑) Monocrotophos가 흰쥐에 대한 독성(毒性) 및 혈액중(血液中) Cholinesterase 활성도(活性度)에 미치는 영향(影響) (Acute Toxicity and the Effect of an Insecticide Monocrotophos on plasma Cholinesterase Acitivity in Albino Rat.)

  • 김광포;최인후;양재설
    • 한국환경농학회지
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    • 제7권1호
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    • pp.58-64
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    • 1988
  • 살충제 Monocrotophos의 독성평가(毒性評價)를 위하여 흰쥐에 $1{\sim}4$주동안 투여후 급성(急性) 및 아급성(亞急性) 독성검정(毒性檢定) 그리고 혈액성상(血液性狀) 및 혈장중(血漿中) Cholinesterase(ChE)를 측정(測定)하여 그 변화(變化)를 구명(究明) 하므로서 농약중독(農藥中毒)에 대(對)한 기초자료(基礎資料)를 얻고자 본(本) 시험(試驗)을 실시(實施)한 결과(結果)는 다음과 같다. 1. Monocrotophos의 급성경구(急性經口) 반수치사(半數致死) 약량(藥量)$LD_{50}$은 흰쥐에서 암, 수 각각(各各) 5.1, 8.7mg/kg이었고 복강내(腹腔內) 투여시(投與時)에는 암컷이 4.9mg/kg 수컷이 6.0mg/kg 이었다. 2. Monocrotophos는 경구(經口)에 6.4mg/kg, 복강내(腹腔內) 4.0mg/kg 투여시(投與時)에 4시간(時間)이 지난후 암, 수 모두의 혈장(血漿) ChE 활성도(活性度)를 최대(最大)로 억제(抑制) 시켰고 투여(投與) 24시간(時間) 이후(以後)부터는 점차 회부(回復) 되었다. 3. Monocrotophos를 흰쥐에 4주간(週間) 경구투여(經口投與) 할 때 3.5mg/kg/day 투여군(投與群)에서는 대조군(對照群)에 비(比)해 암, 수 모두 체중증체량(體重增體量)과 수컷에서 사료섭취량이 현저하게 감소(減少) 되었다. 4. 약제 투여시(投與時)에는 혈장(血漿) ChE 활성도(活性度)를 크게 억제(抑制)시켰으나 투여(投與) 중단(中斷)후에는 2주(週)가 지나면서 거의 회부(回復)되었다. 5. 약제투여(藥劑投與)된 쥐의 적혈구(赤血球), 백혈구(白血球), Ht치(値), Hb량(量)에 대(對)한 혈액상(血液狀) 변화(變化)는 거의 없었다.

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Acellular Dermal Matrix as a Core Strut for Projection in Nipple Reconstruction: Approaches for Three Different Methods of Breast Reconstruction

  • Park, Gui-Yong;Yoon, Eul-Sik;Cho, Hee-Eun;Lee, Byung-Il;Park, Seung-Ha
    • Archives of Plastic Surgery
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    • 제43권5호
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    • pp.424-429
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    • 2016
  • Background The objective of this paper was to describe a novel technique for improving the maintenance of nipple projection in primary nipple reconstruction by using acellular dermal matrix as a strut in one of three different configurations, according to the method of prior breast reconstruction. The struts were designed to best fill the different types of dead spaces in nipple reconstruction depending on the breast reconstruction method. Methods A total of 50 primary nipple reconstructions were performed between May 2012 and May 2015. The prior breast reconstruction methods were latissimus dorsi (LD) flap (28 cases), transverse rectus abdominis myocutaneous (TRAM) flap (10 cases), or tissue expander/implant (12 cases). The nipple reconstruction technique involved the use of local flaps, including the C-V flap or star flap. A $1{\times}2-cm$ acellular dermal matrix was placed into the core with O-, I-, and L-shaped struts for prior LD, TRAM, and expander/implant methods, respectively. The projection of the reconstructed nipple was measured at the time of surgery and at 3, 6, and 9 months postoperatively. Results The nine-month average maintenance of nipple projection was $73.0%{\pm}9.67%$ for the LD flap group using an O-strut, $72.0%{\pm}11.53%$ for the TRAM flap group using an I-strut, and $69.0%{\pm}10.82%$ for the tissue expander/implant group using an L-strut. There were no cases of infection, wound dehiscence, or flap necrosis. Conclusions The application of an acellular dermal matrix with a different kind of strut for each of 3 breast reconstruction methods is an effective addition to current techniques for improving the maintenance of long-term projection in primary nipple reconstruction.