• Title/Summary/Keyword: Immunological Effects

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Regulatory Effect of Ginsenosides Rh1 on Monocytic U937 Cell Adhesion (홍삼유래 ginsenosides Rh1의 단핵구 U937 세포 유착조절 효과)

  • Kim, Byung-Hun;Cho, Jae-Youl
    • Journal of Ginseng Research
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    • v.33 no.4
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    • pp.324-329
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    • 2009
  • Cell-cell adhesion managed by various adhesion molecules is known to be one of pathophysiological phenomena found in numerous immunological diseases such as rheumatoid arthritis and allergic diseases. In this study, we examined the regulatory role of ginsenosides (G)- Rh1, reported to display anti-inflammatory and anti-allergic effects, on CD29-mediated cell adhesion. G-Rh1 significantly suppressed U937 cell-cell adhesion mediated by CD29 but not CD43. It also blocked U937 cell-fibronectin adhesion, mediated by activated CD29, up to 30%. In agreement, this compound also significantly decreased the surface level of CD29 but not CD43 as well as other costimulatory molecules such as CD69, CD80, and CD86. Therefore, these results suggest that G-Rh1 may have inhibitory function on CD29-mediated cell adhesion events, probably contributing to its anti-inflammatory and anti-allergic activities.

Characterization of a novel protein interacting with rat large-conducatance $Ca^{2+}$-actived $K^+$ channel $a\lpha$-subunit rSlo

  • Aegyoung Cho;Lee, Kwang-Hee;Sungmin Song;Bongwoon Hwang;Jung, Yong-Keun;Park, Chul-Seung
    • Proceedings of the Korean Biophysical Society Conference
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    • 2003.06a
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    • pp.43-43
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    • 2003
  • Large-conductance $Ca^{2+}$-actived $K^{+}$ channels ($BK_{Ca}$ channels) play a key role in setting the pace of contractile activity in muscle and are involved in the regulation of neurotransmitter release in neuron. $BK_{Ca}$ channels are activated by depolarizing membrane potential and the elevated level of intracellular calcium. Using yeast-two hybrid assay, we have identified a novel protein interacting with the cytosolic carboxyl terminus of rSlo, the brain isoform of rat large-conductance $Ca^{2+}$-activated $K^{+}$ channel $\alpha$-subunit. The novel gene encodes 51 kDa protein and is named as SIRK(rSlo-interacting RGS-like protein). SIRK is expressed in various tissues and localized in the cytosolic and the membrane fraction. Biochemical and immunological studies indicated that SIRK physically interacted with the cytosolic region of rSlo. To investigate whether SIRK can modulate the activity of rSlo, GFP-fused SIRK and rSlo were transiently transfected into COS-7 cells and the effects of SIRK was studied using electrophysiological means. We concluded that the overexpression of SIRK alters the surface expression of rSlo channel with only a limited effect on the biophysical characteristics of the channel.the channel.

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Systemic review : The study on alternative medicine for allergic rhinitis in Entrez Pubmed (알레르기 비염의 대체의학적 치료에 관한 최근 논문경향 분석 - Entrez Pubmed 위주)

  • Kim, Ja-Hye;Shin, Sang-Ho;Kim, Mi-Bo;Ko, Woo-Shin;Yoon, Hwa-Jung
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.20 no.1 s.32
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    • pp.239-249
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    • 2007
  • Background : Allergic rhinitis is the most frequently occuring immunological disorder. It affects men, women and children and represents significant cost in terms of suffering and loss of productivity. Objective & Methods : We referred to the information through Entrex Pubmed from 2004 to 2007 January about alternative medicine for allergic rhinitis, 9 treatises. Results : About 9 treatises, 2 treatises were for the acupuncture treatment, I treatise was for the acupuncture and chinese herbal medicine, 2 treatises were for the single substance(butterbur, soy sauce ingredients), 1 treatise was for the homeopathic preparation, 1 treatise was for the ayur-veda herbal treatment, 1 treatise was for the ultraviolet light phototherapy, 1 treatise was for the systematic review of alternative medicine. Except 2 treatises for the acupuncture treatment, 6 treatises used the double-blind, randomized, placebo-controlled methods. As a result, we found 5 treatises that treat group had more improvement than control group, 3 treatises that treat group had no difference control group on effect significantly. 1 review article exhibited the most of alternative medical literatures were inadequate methodologically and therapeutic efficacy alternative treatment for allergic rhinitis was not supported by currently available evidence. Conclusion : We found that treatises about the alternative medicine for allergic rhinitis were more and more published. We were supposed that many internal treatises were published adequately by methodology to prove Korean medical treatment effects for allergic rhinitis.

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ORIGINAL ARTICLE - Considerations for Periodontal Treatment and Implant Therapy in Smoking Patient (ORIGINAL ARTICLE - 흡연 환자에서의 치주치료와 임플란트 수술)

  • Park, Jung-Chul;Hwang, Ji-Wan;Jung, Ui-Won;Kim, Chang-Sung;Cho, Kyoo-Sung;Choi, Seong-Ho
    • The Journal of the Korean dental association
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    • v.49 no.10
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    • pp.618-627
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    • 2011
  • Cigarette smoking is a significant risk factor for periodontaldiseases and implant treatments. Smoking control is regarded as a key to the success of dental treatments as well as the well-being of the patients. The aim of this study was to reviewthe effects of smoking on periodontal health, and the results of periodontal therapy and implant treatments. Also, in vitro, microbiological, immunological and epidemiological relationships were studied. In vitro studies show that smoking interferes with normal healing process and increased tissue destruction. There is still controversy on the population of microbes of smokers. Smokers showed significantly less gingival inflammation and bleeding on probing compared with non-smokers. After periodontal treatments, a compromised clinical outcome was noted for smokers in terms of pocket depth reduction and gain in attachment levels. In conclusion, data from in vitro, epidemiological, cross-sectional and case-control studies strongly suggest that quitting smoking is beneficial to patients before periodontal and implant treatments.

No Association between Copy Number Variation of the TCRB Gene and the Risk of Autism Spectrum Disorder in the Korean Population

  • Yang, So-Young;Yim, Seon-Hee;Hu, Hae-Jin;Kim, Soon-Ae;Yoo, Hee-Jeong;Chung, Yeun-Jun
    • Genomics & Informatics
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    • v.8 no.2
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    • pp.76-80
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    • 2010
  • Although autism spectrum disorder (ASD) has been thought to have a substantial genetic background, major contributing genes have yet to be identified or successfully replicated. Immunological dysfunction has been suggested to be associated with ASD, and T cell-mediated immunity was considered important for the development of ASD. In this study, we analyzed 163 ASD subjects and 97 normal controls by genomic quantitative PCR to evaluate the association between the copy number variation of the 7q34 locus, harboring the TCRB gene, and ASDs. As a result, there was no significant difference of the frequency distribution of TCRB copy numbers between ASD cases and normal controls. TCRB gene copy numbers ranged from 0 to 5 copies, and the frequency distribution of each copy number was similar between the two groups. The proportion of the individuals with <2 copies of TCRB was 52.8% (86/163) in ASD cases and 57.1% (52/91) in the control group (p=0.44). The proportion of individuals with >2 copies of TCRB was 11.7% (19/163) in ASD cases and 12.1% (11/91) in the control group (p=0.68). After the effects of sex were adjusted by logistic regression, ORs for individuals with <2 copies or >2 copies showed no significant difference compared with the diploid copy number as reference (n=2). Although we could not see the positive association, our results will be valuable information for mining ASD-associated genes and for exploring the role of T cell immunity further in the pathogenesis of ASD.

Studies on the Development and Utilization of Polyclonal Antibodies Against Swine Adipocyte Plasma Membrane Proteins (돼지 지방세포 원형질막 단백질에 대한 다클론항체의 생산 및 이용에 관한 연구)

  • Baek, K.H.;Kwak, T.H.;Oh, Y.S.;Choi, C.W.;Jung, K.K.;Choi, Chang-Bon
    • Journal of Animal Science and Technology
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    • v.47 no.1
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    • pp.19-28
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    • 2005
  • The objectives of the current study were to develop polyclonal antibodies in sheep against adipocyte plasma membrane(APM) proteins isolated from swine, to investigate tissue specificity, and to determine cytotoxic effects of antiserum on swine adipocytes. Plasma membrane proteins from adipocyte, brain, heart, kidney, liver, and spleen were isolated using a 32% sucrose gradient. Adult male sheep was immunized three times at three week interval with the purified swine APM proteins. Antiserum was taken from immunized sheep at 10, 12, and 14 days after the third immunization. Antiserum expressed strong reactivity with APM proteins determined by enzyme-linked immunosorbent assay(ELISA), and the reactivity could be detected at dilutions in excess of 1 : 81,000. Antiserum showed very low binding affinity with proteins isolated from brain, heart, kidney, liver, or spleen. Tissue specificity of the antiserum was reconfirmed by Western immunoblotting using anti-sheep immunoglobulin G•alkalinephosphatase conjugate as a secondary antibody. The reactivity of antiserum to the external surface of fixed swine adipocytes was confmned by an immunohistochemical technique using anti-sheep immunoglobulin G-FITC. Confluent swine adipocytes in culture were lysed by antiserum treatment and cytosolie lactate dehydrogenase(LDH) was released as a dose-dependent patterns while adipocytes treated with normal sheep serum maintained their integrity and expressed low level of LDH. These results implicate that fat contents in the pigs can be reduced by immunological methods.

The Immunomodulatory Activity of Mori folium, the Leaf of Morus alba L., in RAW 264.7 Macrophages in Vitro

  • Kwon, Da Hye;Cheon, Ji Min;Choi, Eun-Ok;Jeong, Jin Woo;Lee, Ki Won;Kim, Ki Young;Kim, Sung Goo;Kim, Suhkmann;Hong, Su Hyun;Park, Cheol;Hwang, Hye-Jin;Choi, Yung Hyun
    • Journal of Cancer Prevention
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    • v.21 no.3
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    • pp.144-151
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    • 2016
  • Background: Immunoregulatory elements have emerged as useful immunotherapeutic agents against cancer. In traditional medicine, Mori folium, the leaf of Morus alba L. (Moraceae), has been used for various medicinal purposes; however, the immunomodulatory effects have not been fully identified. We evaluated the immunoenhancing potential of water extract of Mori folium (WEMF) in murine RAW264.7 macrophages. Methods: RAW264.7 cells were treated with WEMF for 24 hours and cell viability was detected by an MTT method. Nitric oxide (NO) levels in the culture supernatants were assayed using Griess reagent. The productions of prostaglandin $E_2$ ($PGE_2$) and immune-related cytokines was measured using ELISA detection kits. The mRNA and protein expression levels of Inducible NO synthase, COX-2, and cytokines were assayed by reverse transcription-PCR and Western blotting, respectively. The effect of WEMF on phagocytic activity was measured using a Phagocytosis Assay Kit. Results: WEMF significantly stimulated the production of NO and $PGE_2$ as immune response parameters at noncytotoxic concentrations, which was associated with the increased expression of inducible NO synthase and COX-2. The release and expression of cytokines, such as $TNF-{\alpha}$, interleukin $(IL)-1{\beta}$, IL-6, and IL-10, were also significantly increased in response to treatment with WEMF. Moreover, WEMF promoted the macrophagic differentiation of RAW264.7 cells and the resulting phagocytosis activity. Conclusions: WEMF has the potential to modulate the immune function by regulating immunological parameters. Further studies are needed to identify the active compounds and to support the use of WEMF as an immune stimulant.

Induction of Oral Tolerance to Japanese Cedar Pollen

  • Kim, Joung-Hoon;Mun, Yeun-Ja;Ahn, Seong-Hun;Park, Joung-Suk;Woo, Won-Hong
    • Archives of Pharmacal Research
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    • v.24 no.6
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    • pp.557-563
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    • 2001
  • Oral tolerance is thought to play a role in preventing allergic responses and immune-mediated diseases. An improved mouse model of the oral tolerance to Japanese cedar pollen (JCP) as antigen was developed in order to detect induction of the tolerance, and the immunological characteristics of this model were also elucidated. Oral tolerance was induced by C3H/ HeN mice given an oral administration of 10 mg JCP 7 days before immunization with an i.p. injection of 0.1 mg JCP in complete Freunds adjuvant (CFA). The effects of oral JCP on systemic immunity were assessed by enzyme-linked immunosorbent assay (ELISA) of immunoglobulin (Ig) levels in serum collected on day 7 or 14 after immunization. Oral tolerance to JCP was adequately induced on day 7 after immunization and was more effective in C3H/HeN mice than in BALB/c mice. The tolerance was primarily concerned with the decreased serum levels of antigen-specific IgG. In these mice, oral administration of JCP also suppressed various immune responses to the antigen including delayed-type hypersensitivity (DTH), total Igl level and anti-JCP IgGl level. The suppression of these immune responses by the oral antigen was associated with a significant reduction in interleukin-4 (IL-4) production. These findings therefore indicate that this C3H/HeN mice model has potential use in detecting the induction of oral tolerance by JCP and suggest that this tolerance model may be effective in the treatment and prevention of allergic responses caused by the antigen.

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Analysis of the Effects of Red Ginseng Ingredient-based 'SSR' in Decreasing Fatigue and Inducing Changes in Blood Composition through a Clinical Trial (인체적용시험을 통한 홍삼기반 'SSR'이 인체 피로도 감소 및 혈액성분 변화에 미치는 영향분석)

  • Shin, Keong Sub;Lee, Hong Gi;Park, Sun Mi
    • The Korean Journal of Food And Nutrition
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    • v.34 no.2
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    • pp.196-206
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    • 2021
  • The main purpose of this study was to examine the correlation between the consumption of red ginseng-based 'SSR' for 30 days and the reduction in human fatigue, blood component changes, and immune cell activity in 35 human subjects. 'SSR' is composed of zinc oxide, folic acid, and D-α-tocopherol with red ginseng as the main component. According to the protocol criteria of the study, 35 subjects who understood the purpose of the study and signed an informed consent form were selected. The fatigue survey was conducted through a questionnaire, and after taking 'SSR', a decreased tendency of physical, mental, and neurosensory fatigue was observed. In hematological analysis, no significant changes were observed in the levels of WBC, RBC, and hemoglobin; however, AST (SGOT) and ALT (SGPT) levels were statistically significantly decreased. In immunological analysis, it was observed that the proliferative effect of T cells (CD3+CD4+) was greater than that of NK cells (CD16+CD56+). The collected data were subjected to t-test analysis using the SPSS 25.0 statistical program. The result from this study proposes that 'SSR' can be used as a functional food material as it reduces human fatigue and enhances immune function.

Anti-inflammatory effects of Hataedock with Coptidis Rhizoma and Glycyrrhiza Uralensis on Allergic Rhinitis through Regulating IL-4 Activation (알레르기성 비염에서 황련-감초 하태독법의 IL-4활성 조절을 통한 항염증효과)

  • Jung, A Ram
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.33 no.2
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    • pp.116-122
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    • 2019
  • The aim of this study is to evaluate the anti-inflammatory effect of Hataedock treatment using Coptidis Rhizome and Glycyrrhiza Uralensis (CG) mixed extract in allergic rhinitis induced NC/Nga mice. We divided NC/Nga mice into 3 groups as follows; allergic rhinitis-induced group after CG Hataedock treatment (CGT, n=10), no treatment group (Ctrl), allergic rhinitis elicited group (ARE). To induce allergic rhinitis, NC/Nga mice of 3 weeks age were sensitized on 7, 8 and 9week by Ovalbumin (OVA) antigen in intranasal space. Hataedock using CG extract was administered on week 3 in allergic rhinitis-induced group (CGT) after Hataedock treatment. To identify distribution of Interlukin (IL)-4, Cluster of differentiation 40 (CD40), high-affinity IgE receptor ($Fc{\varepsilon}RI$), substance P, Matrix metallopeptidase 9 (MMP-9), Nuclear $factor-{\kappa}B$ ($NF-{\kappa}B$) p65, Inducible nitric oxide synthase (iNOS) and Cycloxygenase-2 (COX-2), we used histological examination. CGT significantly inhibited IL-4 and CD40 response compared with ARE. The reduction of Th2 cytokine expression decreased inflammatory mediators such as $Fc{\varepsilon}RI$, substance P, MMP-9, $NF-{\kappa}B$ p65, iNOS and COX-2. Such immunological improvement induced reduction of respiratory epithelial damage and mucin secretion in goblet cell. These results indicate that Hataedock treatment suppresses allergic rhinitis through modulating of Th2 responses and diminishing various inflammatory mediators in nasal mucosal tissue. It might have potential applications for prevention and treatment of allergic rhinitis.