• 제목/요약/키워드: Th2 response

검색결과 821건 처리시간 0.031초

Phytotherapy of experimentally induced gill inflammation with Aeromonas hydrophila infection in goldfish, Carassius auratus

  • Harikrishnan, Ramasamy;Kim, Ju-Sang;Balasundaram, Chellam;Heo, Moon-Soo
    • 한국어병학회지
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    • 제21권2호
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    • pp.93-105
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    • 2008
  • Goldfish, Carassius auratus (wt 13 g) was intramuscularly infected with Aeromonas hydrophila (4.3x106 cfu / ml). Infected gills showed edematous lamellae with bacterial invasion into the capillaries and gill congestion on 12th day. By 24th day post-infection, histological analysis revealed irregular aggregates of macrophages in gill lamellae, large amount of mucus cells, gill lamellae edematous with bacterial invasion into capillaries, gill congestion and damaged gill epithelium with hyperplasia. Inflammation of the gill filament and hemorrhage globe was associated with the development of severe necrosis on the 36th day in the infected fishes. In infected and herbal treated fish the regenerative responses like fibrosis and infiltration of the leucocytes (neutrophils and monocytes) occurred on 12th day; moderate hypertrophy in the gills was noticed on the 36th day. These results suggest that phytotherapy ensures better protection and regenerative response against A. hydrophila infection in goldfish, C. auratus.

Molecular Mechanisms of T Helper Cell Differentiation and Functional Specialization

  • Gap Ryol Lee
    • IMMUNE NETWORK
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    • 제23권1호
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    • pp.4.1-4.15
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    • 2023
  • Th cells, which orchestrate immune responses to various pathogens, differentiate from naive CD4 T cells into several subsets that stimulate and regulate immune responses against various types of pathogens, as well as a variety of immune-related diseases. Decades of research have revealed that the fate decision processes are controlled by cytokines, cytokine receptor signaling, and master transcription factors that drive the differentiation programs. Since the Th1 and Th2 paradigm was proposed, many subsets have been added to the list. In this review, I will summarize these events, including the fate decision processes, subset functions, transcriptional regulation, metabolic regulation, and plasticity and heterogeneity. I will also introduce current topics of interest.

경항통 환자에 대한 원위취혈 및 근위취혈의 침치료 직후 효과에 대한 비교 연구 (Clinical Study on Immediate Response after Acupuncture on Local Acupoints and Distal Acupoints for Neck Pain Patients)

  • 이휘용;송범용;육태한;강지숙;홍권의
    • Journal of Acupuncture Research
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    • 제25권6호
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    • pp.183-192
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    • 2008
  • Objectives : The purpose of this study was to compare immediate response after acupuncture on Local Acupoints group and Distal Acupoints group for neck pain patients. Methods : From January 2nd 2008 to August 31th 2008, 10 neck pain patients were divided into 2 groups. One group(test I group) was taken Local Acupoints, and the other group(test II group) was taken Distal Acupoints. To check immediate response and satisfaction of needling, visual analog scale(VAS), range of motion(ROM), clinical evaluation grade and five-point likert scale were used before and after treatment. Results : Both acupuncture therapy showed immediate response and good effect on neck pain. And test I group showed more immediate response than test II group on all categories. Conclusions : Local Acupoints group can be recommended as an immediate and useful therapy to treat neck pain.

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Enterococcus faecium FC-K Derived from Kimchi Is a Probiotic Strain That Shows Anti-Allergic Activity

  • Rho, Man-Kwang;Kim, Young-Eun;Rho, Hyun-In;Kim, Tae-Rahk;Kim, Yoon-Bum;Sung, Won-Kyung;Kim, Tae-Woo;Kim, Dae-Ok;Kang, Hee
    • Journal of Microbiology and Biotechnology
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    • 제27권6호
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    • pp.1071-1077
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    • 2017
  • A rise in the occurrence of allergic diseases is attributed to the dysregulated balance of type 1/type 2 immunity, where type 2 T-helper (Th2) cells predominate over type 1 T-helper (Th1) cells, leading to an abnormally increased production of IgE in response to unharmful antigens. Kimchi, a traditional Korean fermented food, is a rich source of beneficial lactic acid bacteria. In this study, we investigated the ability of Enterococcus faecium FC-K derived from kimchi to induce type I immunity in the presence of Th2 polarizing conditions in vitro and in vivo. Stimulation of mouse peritoneal macrophages with E. faecium FC-K induced the production of tumor necrosis factor alpha, interleukin (IL)-6, and IL-12. Under the in vitro Th2 conditions in which splenic T cells were activated in the presence of IL-4, E. faecium FC-K enhanced the ability of T cells to produce interferon $(IFN)-{\gamma}$. Using the ovalbumin (OVA)-induced allergy model, male BALB/c mice receiving E. faecium FC-K reduced the serum level of total IgE, but not that of OVA-specific IgE. Furthermore, the population of activated splenic B cells during OVA immunization was decreased in E. faecium FC-K-treated mice, accounting for a reduction of total IgE in the serum. Restimulating splenocytes from OVA-immunized mice with OVA ex vivo resulted in an increased production of $IFN-{\gamma}$, with no effect on IL-4, in E. faecium FC-K-treated mice. These observations provide the evidence that E. faecium FC-K can be a beneficial probiotic strain that can modulate the Th2-mediated pathologic response.

한약재인 황금의 궤양성 실험동물에 대한 장간막 임파절 임파구의 면역글로블린 수준, T세포집단, 사이토카인 생성의 조절작용 (Scutellaria baicalensis Modulates Cytokine Production, T Cell Population and Immunoglobulin Level by Mesenteric Lymph Node Lymphocytes in Experimental Mice with Colitis)

  • 임병우;박표잠;최완수;김종대
    • 한국약용작물학회지
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    • 제16권2호
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    • pp.100-105
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    • 2008
  • We previously examined extracts, isolated from Scutellaria baicalensis (SB), chemical mediators, and IgE by mesenteric lymph node (MLN) lymphocytes in rats. The present study was to evaluate the effects of extracts of SB on the MLN lymphocytes function of mice given orally by 20 mg/kg for 2 weeks with dextran sulfate sodium (DS)-induced colitis. Results show that IgE levels in MLN lymphocytes was low, while IgA was high, in mice given SB compared to that fed water. Concentrations of $Inteferon-{\gamma}$ and interleukin (IL)-2 of T cells by concanavalin A treatment was significantly higher in the SB fed group than the normal group. Activation-induced IL-4 and IL-10 secretion was lower in SB fed mice compared control mice after DS-induced colitis. These results suggested that SB suppresses the inflammation in DS-induced colitis through the modulation of Th1/Th2 balance to down-regulate $Th_2$ response in MLN lymphocytes.

Glycididazole Sodium Combined with Radiochemotherapy for Locally Advanced Nasopharyngeal Carcinoma

  • Li, Ming-Yi;Liu, Jin-Quan;Chen, Dong-Ping;Qi, Bin;Liang, Yu-Ying;Yin, Wen-Jing
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권6호
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    • pp.2641-2646
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    • 2014
  • Background: To evaluate efficacy and side effects of glycididazole sodium (CMNa) combined with chemotherapy (cisplatin plus 5-FU/folic acid, PLF) and radiotherapy in treating patients with locally advanced nasopharyngeal carcinoma. Materials and Methods: Patients with III~IV stage nasopharyngeal carcinoma (NPC),were randomly divided into treatment group (46 patients) and control group (45 patients). Both groups received radiotherapy concomitant with PLF chemotherapy. The treatment group at the same time cwas given CMNa ($800mg/m^2$ before radiotherapy), by l h intravenous drip, three times a week. Results: When the dose of radiation was over 60 Gy, complete response rates of nasopharyngeal tumor and lymph node metastases in treatment group were significantly higher than in the control group (93.5% vs 77.8%; 89.1% vs 93.5%, p<0.05). Three months after radiotherapy, complete response rate of nasopharynx cancer and lymph node metastases in treatment group was both 97.8%, again higher than in the control group (84.4% and 82.2%) (p<0.05). In the treatment group, 1, 3, 5 year disease-free survival rates were 95.7%, 86.7% and 54.5%; and in control group, the corresponding disease-free survival rates were 93.3%, 66.2% and 38.6%, respectively, the difference being statistically significant (log-rank =5.887, p=0.015). One, 3, 5 year overall survival rates in two groups of patients were 97.8%, 93.5%, 70.4% and 95.5%, 88.07%, 48.4%, respectively, again with a statistically significant difference (log-rank=6.470, p=0.011). Acute toxicity and long-term radiotherapy related toxicity in the two groups did not differ (p>0.05). Conclusions: Glycididazole sodium could improve curative effects without increasing adverse reactions when treating paitents with locally advanced nasopharyngeal carcinoma.

마우스에서 Interleukin-2가 RD-995 종양세포에 미치는 항암효과 (Effect of interleukin-2 on antitumor response against intraperitoneal RD-995 tumor in mice)

  • 권오덕
    • 한국동물위생학회지
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    • 제25권3호
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    • pp.309-314
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    • 2002
  • Recombinant interleukin-2(IL-2) has demonstrated as an antineoplastic agent in mice and human, but the relatively low response rates observed in clinical trials. Therefore, the present study was undertaken in order to evaluate therapeutic activities of IL-2 for the establishment of therapeutic applications. At the onset of the experiment, normal C3H/HeN mice were injected with 5$\times$10$\^$6/ RD-995 tumor cells, murine ultraviolet radiation-induced fibrosarcoma, intraperitoneally. Beginning on day 6, experimental groups were treated with a 5-day course of IL-2(subcutaneous injection of 30,000 IU every 12 hours for 5 days). The result of this experiment revealed that body weight gradually decreased from 20th day in control mice. Subcutaneous IL-2 therapy prevented partially decrease body weight, and prolonged survival of mice compared with control group.

Effect of UV Radiation on Early Growth of Korean Rice Cultivars(Oryza sativa L.)

  • Choi, Kwan-Sam;In, Jun-Gyo;Kang, Si-Yong;Bae, Chang-Hyu;Lee, Hyo-Yeon
    • 한국작물학회지
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    • 제44권3호
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    • pp.296-301
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    • 1999
  • The concerns on the crop damage by ultraviolet (UV) radiations is increasing owing to the decrease of their absorbing stratospheric ozone in the tropospheric. Cultivar differences on early growth of UV radiation among five Korean rice cultivars, four japonica types and one Tongil type (indica-japonica cross hybrid), were studied. Pot-seeded rice plants were grown under four different radiation conditions, i.e., visible radiation only, visible radiation with supplemented with high or low dose of UV-B (280~320 nm in wavelength) and UV-C (less than 280 nm in wavelength). The inhibitory degree on plant height, shoot and root weight and length of leaf blade and leaf sheath were determined at 40 days after seeding. UV-C showed the most severe inhibitory effect on the degree of biomass gain and leaf growth in most cultivars examined, followed by high UV-B and low UV-B. Among the cultivars used, the Kuemobyeo was the most sensitive cultivar and had not repair or showed resistance ability to continued irradiation of UV radiation. However, Janganbyeo and Jaekeon showed different responses that the elongation of leaf blades was promoted on 2nd and 3rd leaves and inhibited on 4th and 5th leaves but this inhibitory degree was reduced on 6 th and 7th leaves. Such tendency on leaf growth means that both cultivars had low sensitivity and most resistant ability to continued irradiation of UV radiation. While Tongil showed different response to enhanced UV radiation, ie., low UV-B promoted leaf growth but the inhibitory was severely increased by continued irradiation of high UV-B and UV-C, which means that Tongil had high threshold of UV radiation for response as an inhibitory light of plant growth. The results of this study indicate that the differences on sensitivity or resistant to the effects of UV radiation were existed among Korean rice cultivars.

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사회정보처리 모델에 따른 아동의 공격성에 관한 연구 (A Social Information Processing Approach to the Study of Children's Aggression)

  • 안지영;박성연
    • 아동학회지
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    • 제13권2호
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    • pp.161-174
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    • 1992
  • The purpose of this study was to examine the differences between aggressive and nonaggressive boys with the use of a social information processing approach. The subjects were 80 3rd & 6th grade boys selected from a public elementary school in Seoul. The subjects were interviewed individually. Following the presentation of each story, five questions were asked. A 2 x 2 Analysis of Variance was performed for each of the 5 dependent measures. Results showed (1) Aggressive boys were more likely to attribute a hostile intention to the behavior of peer. (2) Aggressive boys predicted their own response as more hostile and aggressive. (3) The 6th graders generated more alternative solutions than the 3rd graders. (4) Non significant results are not reported in the abstract. (5) Aggressive boys were likely to choose an ineffective solution.

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消風散加味의 抗알레르기 效果에 關한 實驗的 硏究 (The study on the anti-allergic effect of SoPungSan-Gami)

  • 이준성;서형식;노석선
    • 한방안이비인후피부과학회지
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    • 제14권2호
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    • pp.9-20
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    • 2001
  • This study was carried out to prove the anti-allergic effect of SPS-GM, which is gained by controlled Cytokines making all the difference to Th2 cell development. The results were obtained as follows : 1. From the SPS-GM treatment about BMC cell, in case of the IL-4, an important factor of the Th2 cell development, SPS-GM didn't show considerable effect. 2. The INF-${\gammer}$, mutual Cytokines of IL-4, was increased more than twice. 3. Histamine from the Master cell and Nitric oxide from indisposition response were a little decreased. According to the above results, it is suggested that SPS-GM has anti-allergic effect.

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