• Biomolecules & Therapeutics
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• 제10권3호
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• pp.175-179
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• 2002

Human growth hormone (hGH) forms antibody by repeated administration. The present study investigated to confirm formation of antibody by repeated subcutaneous administration of hGH for two months in rats and dogs. In this result, hGH-injected sera were significantly higher than control sera by 1:1,000,000 of dilution factor. After antibody formed sera (anti-hGH sera) and control sera were added to 30 $\mu\textrm{g}$/ml hGR, the complex incubated for overnight at $30^{\circ}C$. Anti-hGH sera decreased hGH contents about 90% compared to control sera. Also, body weight gain conducted decreased about 67% compared to control sera in hypophysectomised rat. Inconclusion, repeated administration of hGH formed antibody because hGH was foreign protein to rats and dogs. And formed antibody of hGH was blocked and decreased many efficacy of hGH, the antibody was proved to be neutralizing antibody. Thus, because neutralizing antibodies were decreased pharmacological effects of hGH, administration more than two months were no significance.

• 한국어병학회지
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• 제16권2호
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• pp.81-90
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• 2003

High mortality with signs similar to viral haemorrhagic septicemia (VHS) such as severe haemorrhages in the skin, muscle and air bladder occurred in the farmed adult rainbow trout, Oncorhynchus mykiss, in Ku-mi and Je-chun area in Korea. The isolates were neutralized by an antiserum against IHNV but not by antisera against VHSV. Electron micrograph of an ultrathin section showed large numbers of bullet-shaped virus particles. The newly isolated rhabdovirus was composed of five structural proteins. In the western blot analysis Ihe anti-DiNV serum strongly reacted with G. N and MI protein. The cumulative mortalities of RTK infected rainbow trout (10-12cm.9-12g) with $10^{3.5}\;and\;10^{1.5}TCID_{50}/m{\ell}$ were 80% and 30%. respectiveIy_ RTJ infected fish showed 50% mortality by infection with $10^{3.5}TCID_{50}/m{\ell}$. Control group and IHNVChAb exhibited no mortality. From these results, the viruses were identified lHNV although diseased fish showed similar sign. with VHS and caused high mortality in large-sized fish.

• 생약학회지
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• 제46권4호
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• pp.279-282
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• 2015

In order to quantify compound K(CK), anticancer component of Panax ginseng C. A. Meyer, high titer rabbit polyclonal antibodies (pAbs) were raised against a conjugate of CK and bovine serum albumin coupled by a periodate oxidation method. Coating antigen (CK-OVA) was also prepared by the same method with OVA. As a result of optimization of antiserum dilution (2,000 fold), coating antigen ($25{\mu}g/ml$) and other condition (incubation time, temperature and washing method), ELISA method for the determination of CK was established. The measuring range extended from 0.5 ng/ml to 25 ng/ml of CK. The antibodies exhibited minor or even no cross reactivities with protopanaxatriol (1.56%) and other tested ginsenosides, $GRb_1$ (0.11%), $GRg_1$ (0.07%) except protopanaxadiol (87.2%) from the structural similarity. And the antibody showed good correlation (r=0.987) between the assay values obtained by this ELISA method and HPLC. Therefore, the ELISA method could be very useful tools for the determination of CK in biological fluids because of their high sensitivity and specificity.

• 한국식물병리학회지
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• 제14권6호
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• pp.625-629
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• 1998

Turnip mosaic potyviruses (TuMV) were isolated from Rorippa indica and Armoracia lapathifolia showing mosaic symptoms in field. Identification of the TuMVs were carried out by host reactions of indicator plants, electron micrograph, serological properties and reverse transcription-poly-merase chain reaction (RT-PCR). Both viruses systemically infected Chenopodium quinoa, Nicotiana clevelandii, Brassica rapa, B. campestris subsp. pekinensis, B. juncea and Raphanus sativus, and developed local infection on inoculated leaves of C. quinoa, C. amaranticola, C. album, N. tabacum cv. Xanthi nc and Gomphrena grobosa. However, the viruses did not infect on N. glutinosa, Cucumis sativus and Vigna unguiculata. The filamentous particles, about 720 nm in length, and inclusion bodies were observed from the infected leaf tissues by dipping on electron microscopy. Crude sap of leaf infected with the viruses was reacted positively with an antiserum of TuMV in agar gel double diffusion. For detection of the viruses, RT-PCR was carried out with TuMV--specfic oligonucleotide primer. The RT-PCR products, a 1,092 bp DNA fragment, were obtained from naturally infected leaves of R. indica and A. lapathifolia. In inoculation test to seven cruciferous weeds with TuMV, infection occurred in Arabis glabra, Barbarea orthoceras, Capsella bursa-pastoris, Draba nomorosa var. hebecarpa, Rorippa cantoniensis and Thlaspi arvense.

• 대한수의학회지
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• 제35권1호
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• pp.67-73
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• 1995

아무르장지뱀(Takydromus amurensis)의 위장관 점막에 분포하는 내분비세포의 분포와 출현빈도 및 세포의 종류를 알아보기 위하여 몇가지 도은법 및 면역조직화학적 방법으로 관찰하였다. Grimelius법에만 염색된 은호성세포(argyrophil cell)는 유문부에 다수로 십이지장에 중등도로 국한되어 출현하였다. 한편 bovine CG면역반응세포는 유문부에서 최고의 빈도로 전장관에 걸쳐 분포하였다. BPP면역반응세포는 소장부위에서만 동정되었다. 따라서 아무르장지뱀의 위장관 내분비세포에서 은호성세포와 bovine CG면역반응세포는 분포와 출현빈도에서 일치하지 않았다.

• 대한수의학회지
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• 제33권3호
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• pp.443-454
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• 1993

Shiga-like toxin-II(SLT-II)-producing Escherichia coli 0157 : H7 strain B2387이 분비하는 SLT-II가 gnotobiotic자돈에서의 뇌혈관 병변을 일으키는 pathogenesis에 관해서 실험을 했다. 제왕절개 수술로 태어난 자돈들을 두 그룹으로 나누어서, 한 그룹에는 SLT-II 중화항체를 포함한 혈청을 구강을 통해서 수동면역을 시키고, 또다른 한 그룹에는 SLT-II 중화항체가 포함되어 있지 않은 혈청을 구강을 통해서 수동면역시켰다. 24시간후 두 그룹 모두에게 SLT-II producing Escherichia coli O157 : H7 strain B2387를 구강으로 접종했다. SLT-II 중화항체가 포함되어 있지 않은 혈청으로 수동면역시킨 그룹의 자돈들은 설사와 맹결장염, 신경증상, 뇌혈관병변을 일으키고, plasma의 prostacyclin의 level이 증가했다. 하지만 SLT-II 중화항체가 포함되어 있는 혈청으로 수동면역시킨 그룹의 자돈들은 설사와 맹결장염은 유발했지만, 신경증상과 뇌혈관병변은 관찰되지 않았고, prostacyclin의 level도 증가하지 않았다. 이런 실험결과는 SLT-II 중화항체는 뇌혈관병변은 방어하지만 맹결장염은 방어하지 못한다는 의미를 나타내며, prostacylin의 증가는 뇌혈관의 endothelium의 병변을 의미한다.

• 대한수의학회지
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• 제49권2호
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• pp.127-133
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• 2009

Salmonella enterica subsp. enterica serovar gallinarum (S. gallinarum) is the agent of fowl typhoid, and the 9R vaccine is a commercial live vaccine for the prevention of fowl typhoid. The aim of this study was to assess the safety and immunogenicity of different brands of S. gallinarum 9R vaccine used in commercial laying chickens in Korea. All 9R strains originated from three different brands showed the same pattern in the biochemical and serological properties, and pulsed field gel electrophoresis (PFGE) profile. But, there was a difference in rhamnose fermentaion, agglutination with Salmonella group $D_1$ antiserum and PFGE pattern between 9R vaccine strain and field S. gallinarum isolates. In laboratory and field trials for assesment of safety and immunogenicity of 9R vaccine, all of the three 9R vaccines showed the same safety in commercial laying chickens. In addition, there was a significant difference between the vaccinated and unvaccinated control groups in mortality and the re-isolation rate of the challenge strain from the tissues (p < 0.05), and no difference by the brands of 9R vaccine. The results from this study indicated that all three different brands of S. gallinarum 9R vaccine showed highly protection against mortality and organ invasion in commercial laying chickens exposed to virulent strains of S. gallinarum.

• 대한미생물학회지
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• 제19권1호
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• pp.79-83
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• 1984

To determine the existence of anti-HLA antibodies finally in 220 human placental extracts to be proved negative antiserum by previous anti-HLA A,B,C antibody screening procedure, the present study was performed by fractionation of immunoglobulins using saturated ammonium sulfate and by simple batch method on DEAE cellulose. Thereafter using known 150 T-lymphocyte panels, complement-dependent microlymphocytotoxicity test was performed to observe the existence of anti-HLA antibodies and the degree of the antibody response of the concentrates. The following results were obtained: 1. Of total 141 placental sera concentrated 45 cases(31.9%) were showed significant anti-HLA A,B,C antibody response after concentration(Excellent, 19(13.5%), Good, 3(2.1%), Weak, 23(16.3%)). 2. Anti-HLA specificities of placental sera obtained after concentration were A2, A24, B13, B27, B44, B51, CN1, C7. 3. A new type C new-1 anti-HLA antibody that is only expressed in Korean people, was obtained. 4. 79 placental sera purrified by simple batch method using DEAE cellulose were showed negative anti-HLA antibody responses.

• 약학회지
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• 제41권1호
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• pp.74-80
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• 1997

A polygonal antibody against recombinant hirudin was raised for the development of a ELISA in biological fluids. Recombinant hirudin was conjugated to maleimide activated carrie r protein, KLH and injected to a rabbit. The third booster collection of antiserum was used as primary antibody for the ELISA. The titer for the detection antibody was determined. The direct ELISA could determine the concentration of hirudin in the range of ~10ng/ml. Affinity pulified IgG was obtained and conjugated to horseradish peroxidase. Purified IgG and IgG-HRP could be used as capture and detection antibody, respectively. Although sandwich ELISA would not give the satisfactory results. it could apply for the detection of hirudin level in the range of ~20 ${\mu}$g/ml.

• Animal cells and systems
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• 제5권3호
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• pp.211-216
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• 2001

Polyclonal antiserum against Manduca sexta allatotropin has been utilized to investigate the localization of allatotropin-immunoreactivity in the brain of the si1k moth Bombyx mori. Manduca sexta allatotropin-immunoreactive (Mas-AT-IR) neurons were found in all larval brains investigated, but not in prepupal, pupal and adult brains. In the larval stages, first appearance of Mas-AT-immunoreactivity w8s shown in the brain of first instar larvae, which contains four pairs of bilateral Mas-AT-IR cell bodies. Labeled neurons increased to six pairs in the second instar larval brain, including two pairs of median neurosecretory cells in the pars intercerebralis. In the third and fourth instar larvae, five pairs of labeled cell bodies were distributed throughout each brain. In the fifth instar, there were about ten pairs of bilateral cell bodies in the day-1 brain, about seven pairs in the day-3 brains, and five pairs in the day-5 brains, respectively. Mas-AT-labeling was observed in both axons within nervi corpora cavdiaci (NCC) 1+11 and corpora allata. This suggests that the Mas-AT produced from the brain neurons is transported via some axons of the NCC 1+11 and nervi corpora allati I to the corpora allata, which appears to be a main accumulation site for the Mas-AT neuropeptide in some brain neurons produced in B. mori.