• Title/Summary/Keyword: immunological methods

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Immunological Identification ofFferrobacillus ferrooxidans and Thiobacillus thiooxidans (Ferrobaillus ferrooxidans와 Tthiobacillus thiooxdans의 면역학적 동정연구)

  • 이강순;장정순;이강석
    • Korean Journal of Microbiology
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    • v.13 no.3
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    • pp.91-100
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    • 1975
  • The chemolithoautotrophic bacteria, Freeobacillus ferroxidans and Thiobacillus thiooxidans were identified according to their immunological and serological properties. The antibody to these organisms was easily elicited in experimental animals, however, the overall serologicl reactivities were low according to different kinds of titration methods. By means of the quantitive and qualitative analysis such as hemagglutination or ouchterlony tests, F.ferroxidans and T. thiooxidans were different in their immunoreactivities, whereas the strains among the F.ferrooxidans were possessed, in some extent, the sharing antigenic determinants. In the results of the polyacrylamide gel electrophoresis/radioimmunometric method, the major antigenic determinants of the organisms illustrated the type specificitles in the fraction number of 20-30 in their gel electrophoretograms with some modifications of the antigenic moieties.

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Serological activity of fractions of mycobacterial antigens (항산성균 항원분획의 혈청학적 활성)

  • 배용수;김상재;배길한;이승호
    • Korean Journal of Microbiology
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    • v.24 no.4
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    • pp.377-384
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    • 1986
  • A study on the production of mycobacterial antogens has been made in order to improve immunological reactivity and specificity, which have long been explored for the better use of immunological diagnosis of mycobacterial infections. Instead of culture filtrate cell extract was used as a starting material for the production of antigens in this study. Cell extract was fractionated though several steps such as salting out, gel filtration and ion exchange column chromatography and reactivity and specificity of the fractions so produced were enaluated by the various serological methods. The result showed that the species-specific antigenic components distributed mostly in the fractions, Tc of M. tuberculosis, Kc of M. kansasii, Sa of M. scrofulaceum, Aa of M. avium and Fa, Fb, Fc (FF1) of M. fortuitum, which were fractionated by ion exchange column prior to concentrating by salting out and molecular sieving.

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Immunogenicity of botulinum toxin

  • Wee, Syeo Young;Park, Eun Soo
    • Archives of Plastic Surgery
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    • v.49 no.1
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    • pp.12-18
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    • 2022
  • Botulinum toxin treatment is the most common non-surgical cosmetic treatment. Although there are many available treatments using botulinum toxin, their effects are temporary and repeated injections are required. These frequent injections can trigger an immunological response. In addition, botulinum toxin acts as an antigen in the body; thus, its effect disappears progressively due to this immunological reaction, which may cause treatment failure. Active botulinum toxin consists of a core neurotoxin and complexing proteins, the exact effects of which remain unclear. However, the complexing proteins are closely related to the immune response and the formation of neutralizing antibodies. Since neutralizing antibodies can lead to treatment failure, their formation should be prevented. Furthermore, various methods of detecting neutralizing antibodies have been used to predict treatment failure.

The Effects of Swimming Training on Lymphocyte Proliferation and ROS Production in Spleen Lymphocytes of BALB/c Mice (규칙적인 수영훈련이 마우스 비장세포의 ROS생성과 림프구 증식에 미치는 영향)

  • Kwak, Yi-Sub;Park, Jeon-Han;Kim, Se-Jong;Jang, Yun-Soo;Lee, Bong-Ki
    • IMMUNE NETWORK
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    • v.2 no.2
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    • pp.96-101
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    • 2002
  • Background: Aerobic training can be defined as any physical exercise that increases the heart rate and enhances the body's intake of oxygen long enough to benefit the condition of body. Running, cycling, and swimming are examples of aerobic activities. This type of exercise optimises immune functions. Recently several experimental findings suggested that the regular swimming training increase immune response, but there have been very few reports which compare warm water exercise with cold water exercise in spleen lymphocytes. Methods: This study was designed to examine the effects of regular swimming training on Index, the number of lymphocytes, proliferative activity and production of reactive oxygen species (ROS) by splenocytes in BALB/c mice. Thirty six mice (6 week old) were performed 10 weeks of regular swimming training and they were divided into 6 groups according to the regular swimming training (CRG: control resting group, CEG: control exercise group, WRG: warm water trained resting group, WEG: warm water trained exercise group, CORG: cold water trained resting group, COEG: cold water exercise group). Analytical items were weight change, spleen index, the number of lymphocytes, proliferative activity and production of ROS. All data were expressed as mean and standard deviation by using SPSS package program (ver. 10.0). Results: The swimming training significantly decreased body weight, and increased spleen index, the number of lymphocytes and proliferative activity in the presence or absence of Con A and LPS added conditions. For the WRG and CORG, the quantity of ROS from splenocytes was higher than CRG, whereas, ROS by spleen lymphocytes was lower following 90 min acute exercise stress. Conclusion: These results suggested that the swimming training not only increases the number of lymphocytes but also increases proliferative activity by splenocytes in vitro.

Effects of Bee Venom and Cervi Cornu Parvum Pharmacoacupuncture in Monosodium Iodoacetate(MIA)-Induced Osteoarthritis Rat (봉독약침과 녹용약침이 MIA 유도 골관절염 흰쥐에 미치는 영향)

  • Kim, Whan-Young;Choi, Jin-Bong
    • Journal of Korean Medicine Rehabilitation
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    • v.20 no.1
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    • pp.61-77
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    • 2010
  • Objectives : The purpose of this study was to investigate the effects of Bee Venom (BV) and Cervi Cornu Parvum pharmacoacupuncture (CC) in monosodium iodide induced arthritis rats. Methods : The subjects were divided into 5 groups ; Normal, Control (no treatment after MIA), BV (Bee Venom pharmacoacupuncture $100{\mu}{\ell}$ daily at Dokbi (ST35) after inducing MIA), CC (Cervi Cornu Parvum pharmacoacupuncture $100{\mu}{\ell}$ dailyat Dokbi (ST35) after inducing MIA) and BV+CC (Bee Venom pharmacoacupuncture and Cervi Cornu Parvum pharmacoacupuncture $100{\mu}{\ell}$daily at Dokbi (ST35) after inducing MIA). After each operation, the present author observed the motor behavior recovery, hematological (Prostaglandin E2, AST, ALT), histological and immunological changes. Rats were tested at the 7th, 14th and 21st day. Results : Results are as follows. 1. All the experimental groups were improved compared with control group in plantar test. 2. All the experimental groups were improved compared with control group in touch test for sensory evaluator. 3. All the experimental groups were significantly decreased compared with control group in prostaglandin E2. 4. In histological observations, knee joint in all the experimental groups were improved compared with control group. 5. In immunological observations, all the experimental groups were significantly decreased compared with control group in COX-1, 2. Conclusions : It can be suggested that Bee venom and Cervi Cornu Parvum pharmacoacupuncture may improve motor behavior, hematological, histological and immunological findings in MIA-induced osetoarthritis rats. Especially, combination of these two treatments will be somewhat better in osteoarthritis recovery and motor function improvement.

Ribosomal Protein L19 and L22 Modulate TLR3 Signaling

  • Yang, Eun-Jeong;Seo, Jin-Won;Choi, In-Hong
    • IMMUNE NETWORK
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    • v.11 no.3
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    • pp.155-162
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    • 2011
  • Background: Toll-like receptor 3 (TLR3) recognizes double-stranded RNA (dsRNA) and induces inflammation. In this study we attempted to ascertain if there are endogenous host molecules controlling the production of cytokines and chemokines. Two candidates, ribosomal protein L19 and L22, were analyzed to determine if they influence cytokine production followed by TLR3 activation. In this study we report that L19 acts upon production of IP-10 or IL-8 differently in glioblastoma cells. Methods: L19 or L22 was transfected into HEK293-TLR3, A549 or A172 cells. After treatment with several inhibitors of NF-${\kappa}B$, PI3K, p38 or ERK, production of IL-8 or IP-10 was measured by ELISA. siRNA was introduced to suppress expression of L19. After Vesicular stomatitis virus infection, viral multiplication was measured by western blot. Results: L19 increased ERK activation to produce IL-8. In A172 cells, in which TLR3 is expressed at endosomes, L19 inhibited interferon regulatory factor 3 (IRF3) activation and IP-10 production to facilitate viral multiplication, whereas L19 inhibited viral multiplication in A549 cells bearing TLR3 on their cell membrane. Conclusion: Our results suggest that L19 regulates TLR3 signaling, which is cell type specific and may be involved in pathogenesis of autoimmune diseases and chronic inflammatory diseases.

Immunological Assessment of Respiratory Allergy Status for the Swine Farm Workers in Gyeonggi Province of Korea (경기 일부지역 양돈 축산인들의 호흡기 알레르기 관련 면역학적 지표 분석)

  • Kim, Ji Youn;Kim, Kwang Ho;Hwang, So Ryeon;Yeo, Kyeong Uk;Kim, Hyoung Ah;Heo, Yong
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.22 no.4
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    • pp.309-315
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    • 2012
  • Objectives: Animal husbandry workers could be exposed to various work hazards including toxic gases, chemicals such as pesticides or organic dust. Immunological evaluation focusing on respiratory allergic hypersensitivity occurrence was under-taken for swine farm workers as a part of the study on immunologic status of dairy barn, swine confinement, and poultry farm workers. Materials and Methods: Peripheral bloods were collected from 25 workers at the year of 2001 and 12 workers at the year of 2012 from swine farms located at Gyeonggi province, Korea. Seven adults not involved with animal husbandry were recruited at the year of 2001 from the same residential area as the swine farm workers'. Level of plasma IgE and 20 respiratory allergen-specific IgE were evaluated using commercially available ELISA kit. Results: Plasma IgE level was approximately five-fold higher in the swine farm workers regardless of the sampling year than the control subjects. Plant allergens from outdoor environments such as golden rod, pigweed, Russian thistle, or ragweed were the major allergens with positive reaction(allergen specific IgE${\geq}$0.7 IU/mL) for the swine farm workers at 2001 year. Meanwhile, house dust mite(Dermatophagoides farinae, D. pteronyssinus) and cockroach, typical indoor allergens in Korea, were the major respiratory allergens for the swine farm workers at 2012 year. Conclusions: Overall, even though our results are primitive, the results suggest that immunological function of swine farm workers could be modulated toward type-2 reactivity.

Potential immune-modulatory effects of wheat phytase on the performance of a mouse macrophage cell line, Raw 264.7, exposed to long-chain inorganic polyphosphate

  • An, Jeongmin;Cho, Jaiesoon
    • Animal Bioscience
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    • v.34 no.3_spc
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    • pp.463-470
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    • 2021
  • Objective: This experiment was conducted to find out the immunological effects of wheat phytase when long-chain inorganic polyphosphate (polyP) treated with wheat phytase was added to a macrophage cell line, Raw 264.7, when compared to intact long-chain polyP. Methods: Nitric oxide (NO) production of Raw 264.7 cells exposed to P700, a long-chain polyP with an average of 1,150 phosphate residues, treated with or without wheat phytase, was measured by Griess method. Phagocytosis assay of P700 treated with or without phytase in Raw 264.7 cells was investigated using neutral red uptake. The secretion of tumor necrosis factor α (TNF-α) by Raw 264.7 cells with wheat phytase-treated P700 compared to intact P700 was observed by using Mouse TNF-α enzyme-linked immunosorbent assay kit. Results: P700 treated with wheat phytase effectively increased NO production of Raw 264.7 cells by 172% when compared with intact P700 at 12 h exposure. At 5 mM of P700 concentration, wheat phytase promoted NO production of macrophages most strongly. P700, treated with wheat phytase, stimulated phagocytosis in macrophages at 12 h exposure by about 1.7-fold compared to intact P700. In addition, P700 treated with wheat phytase effectively increased in vitro phagocytic activity of Raw 264.7 cells at a concentration above 5 mM when compared to intact P700. P700 dephosphorylated by wheat phytase increased the release of TNF-α from Raw 264.7 cells by 143% over that from intact P700 after 6 h exposure. At the concentration of 50 μM P700, wheat phytase increased the secretion of cytokine, TNF-α, by 124% over that from intact P700. Conclusion: In animal husbandry, wheat phytase can mitigate the long-chain polyP causing damage by improving the immune capabilities of macrophages in the host. Thus, wheat phytase has potential as an immunological modulator and future feed additive for regulating immune responses caused by inflammation induced by long-chain polyP from bacterial infection.

Comparison of the presentation of atopic dermatitis induced by trinitrochlorobenzene and house dust mite in NC/Nga mice

  • Kim, Yoon-Hwan;Kim, Tae Hyeong;Kang, Min Soo;Ahn, Jin-Ok;Choi, Jung Hoon;Chung, Jin-Young
    • Journal of Veterinary Science
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    • v.21 no.4
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    • pp.59.1-59.12
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    • 2020
  • Background: Atopic dermatitis (AD) is a common chronic inflammatory skin disease. To understand AD, there have been many trials establishing AD animal models. Although various trials to establish AD animal models have been existed, even the mechanisms of AD in animal models are not enough clarified. Objectives: This study assessed AD characteristics induced in Nishiki-nezumi Cinnamon/Nagoya (Nc/Nga) mice following trinitrochlorobenzene (TNCB) treatment for different periods and house dust mite (HDM) treatment to compare each model's immunological patterns, especially with cytokine antibody array tool. Methods: In this study, we exposed Nc/Nga mice to TNCB or HDM extract to induce AD. Nc/Nga mice were divided into 4 groups: control, TNCB 2 weeks-treated, TNCB 8 weeks-treated, and HDM-treated groups. After AD induction, all mice were evaluated by serum immunoglobulin E (IgE) concentration and serum cytokine antibody assays, scoring of skin lesions, scoring of scratching frequency, and histological analysis. Results: The results showed significant differences between groups in serum IgE concentration, skin lesion scores, and scratching frequency. The analysis results for serum cytokine antibody arrays showed that in the TNCB 8 weeks- and HDM-treated groups, but not in the TNCB 2 weeks-treated group, expressions of genes related to the immune response were enriched. Among the histological results, the skin lesions in the HDM-treated group were most similar to those of AD. Conclusions: We confirmed that immunological pattern of AD mice was markedly different between HDM and TNCB treated groups. In addition, the immunological pattern was quietly different dependent on TNCB treated duration.

Effects of dietary mulberry leaves on growth, production performance, gut microbiota, and immunological parameters in poultry and livestock: a systematic review and meta-analysis

  • Bing Geng;Jinbo Gao;Hongbing Cheng;Guang Guo;Zhaohong Wang
    • Animal Bioscience
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    • v.37 no.6
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    • pp.1065-1076
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    • 2024
  • Objective: This study aimed to assess the effects of dietary mulberry leaves on the growth, production performance, gut microbiota, and immunological parameters of poultry and livestock. Methods: The PubMed, Embase, and Scopus databases were systematically analyzed to identify pertinent studies up to December 2022. The effects of mulberry leaf diet was assessed using the weighted mean difference, and the 95% confidence interval was calculated using a random-effects model. Results: In total, 18 studies that sampled 2,335 poultry and livestock were selected for analysis. Mulberry leaves improved the average daily gain and reduced the feed/meat ratio in finishing pigs, and the average daily gain and average daily feed intake in chicken. In production performance, mulberry leaves lowered the half carcass weight, slaughter rate, and loin eye area in pigs, and the slaughter rate in chickens. Regarding meat quality in pigs, mulberry leaves reduced the cooked meat percentage, shear force, crude protein, and crude ash, and increased the 24 h pH and water content. In chickens, it increased the drip loss, shear force, 45 min and 24 h pH, crude protein, and crude ash. Mulberry leaves also affect the abundances of gut microbiota, including Bacteroides, Prevotella, Megamonas, Escherichia-Shigella, Butyricicoccus, unclassified Ruminococcaceae, Bifidobacterium, Lactobacillus, and Escherichia coli in poultry and livestock. Mulberry leaves at different doses were associated with changes in antioxidant capacity in chickens, and immune organ indexes in pigs. With respect to egg quality, mulberry leaves at different doses improved the shell strength, yolk color, eggshell thickness, and eggshell weight. However, moderate doses diminished the egg yolk ratio and the egg yolk moisture content. Conclusion: In general, dietary mulberry leaves improved the growth, production performance, and immunological parameters in poultry and livestock, although the effects varied at different doses.