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비글개에서 인체 재조합 적혈구 조혈인자, rHu-EPO의 급성독성에 관한 연구
조명행,성하정,김형식,곽승준,천선아,임소영,김원배,김병문,안병옥,이병무,Cho, Myung-Hang,Seong, Ha-Jung,Kim, Hyung-Sik,Kwack, Seung-Jun,Chun, Sun-Ah,Lim, So-Young,Kim, Won-Bae,Kim, Byoung-Moon,Ahn, Byoung-Ok,Lee, Byung-Mu 한국독성학회 1996 Toxicological Research Vol.12 No.2
The acute toxicity of rHu-EPO, newly developed recombinant erythropoietin, was tested in beagle dogs. rHu-EPO, when administered intravenously at 25, 000 IU/kg, did not cause any death. Also, rHu-EPO did not induce any change of body weight, food intake and clinical signs compared to controls. There were no significant changes in hematological, urine analysis and pathological examination. These results showed that rHu-EPO did not induce any remarkable toxic response and the $LD_50$ was greater than 25, 000 IU/kg in beagle dogs.
비글개에서 인체 재조합 적혈구 조혈인자 , rHu-EPO 의 아급성정맥독성시험
조명행(Myung Hang Cho),성하정(Ha Jung Seong),김형식(Hyung Sik Kim),곽승준(Seung Jun Kwack),임소영(So Young Lim),천선아(Sun Ah Chun),김원배(Won Bae Kim),김병문(Byoung Moon Kim),안병옥(Byoung Ok Ahn),이병무(Byung Mu Lee) 한국응용약물학회 1996 Biomolecules & Therapeutics(구 응용약물학회지) Vol.4 No.4
The subacute toxicity was investigated in Sprague-Dawley rats orally treated with KDRD-010 at the doses of 0.056, 0.28, and 1.4 g/㎏ for one month. There were no clinical signs and pathological changes compared with control group. Body weights were not significantly changed between control and treatment groups. In hematological and biochemical serum parameters, all mean values appear to be within the normal range. In pathological examinations, hemorrhages of lung was observed in one male rat at low dose group and one female rat at high dose group of KDRD-010, but it was not considered to be caused by KDRD-010. These results suggest that KDRD-010 dose not induce any significant subacute oral toxicities in Sprague-Dawley rats.
닭에서 ciprofloxacin의 체내 동태에 관한 연구
강환구,조명행,이항,한명국,손성완,김재학,이재진,Kang, Hwan-goo,Cho, Myung-haing,Lee, Hang,Han, Myung-guk,Son, Seong-wan,Kim, Jae-hak,Lee, Jae-jin 대한수의학회 1995 大韓獸醫學會誌 Vol.35 No.3
The purpose of this experiment was to develop a simple and reliable HPLC method for the detection of ciprofloxacin in chicken serum and to provide a basic data on pharmacokinetic parameters after oral and intramuscular administration. The results obtained were as follows: 1. 0.2% meta-phosphoric acid: acetonitrile(7:3, v/v) solution had a high and regular recovery rates and was selected as an extraction solution. 2. The recovery rates of ciprofloxacin were 83-97% with the selected solution in chicken serum and the detection limit was 50ng/ml in serum. 3. Ka(abosorption rate constant) were 3.652 1/h in fasted group and 0.880 1/h in non-fasted group, and Ke (elimination rate constant) were 0.061 1/h and 0.133 1/h, respectively. 4. The highest concentration in serum after intramuscular injection was 840ng/ml within 15-30min and 160-324ng/ml in 1.1-3.2 hours after oral administration. 5. The time course of blood concentration fits well into a 2 compartment model. 6. On oral administration of ciprofloxacin with feed, ciprofloxacin was absorbed more slowly and the amount of absorbed was smaller than that of in fasted chickens. 7. Blood concentration of ciprofloxacin increased in a dose-dependent manner after intramusclular and oral administraiton.
축산식품 중에 잔류하는 Gentamicin 검사를 위한 ELISA 개발에 관한 연구
김재명,이문한,이항,류판동,조명행,박종명,Kim, Jae-Myung,Lee, Mun-Han,Lee, Hang,Ryu, Pan-Dong,Cho, Myung-Haing,Park, Jong-Myung 한국식품위생안전성학회 1994 한국식품위생안전성학회지 Vol.9 No.3
An enzyme-linked immunosorbent assay(ELISA) was developed for the detection of residual gentamicin(GM) in edible animal products. The immunogen(GM-KLH conjugate) and coating antigen(GM-BSA conjugate) were prepared by coupling GM sulfate to keyhole limpet hemocyanin(KLH) and bovine serum albumin(BSA) in the presence of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride, respectively. Polyclonal antibody to GM was produced in rabbits(New Zealand White, female) by using the immunogen and the antibody titer was measured by indirect ELISA. A competitive ELISA was developed using GM-bovine serum albumin conjugate as a coating antigen, GM(as standards or sample), polyclonal antibody to GM, secondary antibody conjugated with horseradish peroxidase as an enzyme, and H2O2 and o-phenylenediamine dihydrochloride as a substrate and a chromophore, respectively. The detection limit of GM was 10 ng/ml and the standard curve of GM(n=26) was linear up to 10 $\mu\textrm{g}$/ml in this competitive ELISA system. There were no cross-reactivities of the partially purified antibody between GM and the various antibiotice such as amikacin, benzyl-penicillin, chloramphenicol, erythromycin, furazlidone, kanamycin, neomycin, oleandomycin, streptomycin, sulfathiazole and thiamphenicol(CR50<0.05%)