• 제목/요약/키워드: ELISA assay

검색결과 1,341건 처리시간 0.026초

발효 인삼꽃 추출물의 경구 투여가 마우스 사이토카인 IL-6, TNF-α의 생성에 미치는 영향 (Effects of Extract from Fermented Flower-buds of Panax ginseng C.A. Meyer on Mouse Cytokine IL-6, TNF-α Production)

  • 정수지;김경희;손화영;육홍선
    • 한국식품영양학회지
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    • 제27권1호
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    • pp.43-49
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    • 2014
  • 생체 내 실험에서 발효 인삼꽃 추출물(FM), 발효하지 않은 인삼꽃 추출물(FD)과 대조군으로 생리식염수를 2주간 마우스 체중 kg 당 100, 200 mg/kg B.W.의 농도로 마우스에 경구 투여한 후 LPS에 의해 활성화된 복강 대식세포가 분비하는 염증성 사이토카인 IL-6, TNF-${\alpha}$의 생성량을 측정하였다. 그 결과, IL-6는 발효 LPS로 자극한 경우, 두 가지 농도에서 모두 처리한 군에 비해 높은 증식능을 나타내었고, LPS로 자극한 결과, 특히 발효 인삼꽃 추출물 200 mg/kg B.W. 농도에서 유의적으로 낮은 IL-6 분비량을 보였다. TNF-${\alpha}$의 경우, 100 mg/kg B.W.와 200 mg/kg B.W. 두 농도 모두에서 LPS로 자극하지 않은 경우, 낮은 증식 효과를 보여주었고, 자극한 경우, 인삼꽃 시료를 첨가한 군이 대조군보다 낮은 TNF-${\alpha}$ 분비량을 보였으며, FM에서 FD보다 더 TNF-${\alpha}$를 억제하는 효과가 큰 것을 볼 수 있었다. 이상의 결과에 따르면 FD의 사이토카인 IL-6, TNF-${\alpha}$ 생성 효과는 200 mg/kg B.W. 농도 투여 시 효과적으로 면역 세포와 면역 기관의 주요 기능을 증진시킬 가능성이 있을 것으로 사료된다. 이러한 연구결과를 토대로 앞으로 인삼꽃 발효를 이용한 기능성 사료 개발과 더불어 산업적 측면에서 보다 긍정적인 효과를 얻을 수 있을 것으로 판단된다.

가시오가피 물 추출물에 의한 마우스 비장세포 및 대식세포 활성의 항진효과 (Enhancing Effect of Acanthopanax senticosus Extracts on Mouse Spleen and Macrophage Cells Activation)

  • 류혜숙
    • 한국식품영양학회지
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    • 제28권2호
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    • pp.253-257
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    • 2015
  • In vitro 실험을 통한 가시오가피 물 추출물 첨가가 마우스의 면역세포 증식에 미치는 영향에 대한 연구 결과, 음의 대조군에 비해 가시오가피 물 추출물을 첨가한 모든 농도에서 비장세포 증식능이 증가하였으며, 특히 고농도인 $500{\sim}1,000{\mu}g/mL$ 농도에서 유의적으로 증가하였다. 반면, 복강 대식세포로부터 유도된 사이토카인 생성의 경우, IL-2, IFN-${\gamma}$, TNF-${\alpha}$ 사이토카인 생성량을 측정한 결과, TNF-${\alpha}$ 사이토카인은 가시오가피 물 추출물 $50{\mu}g/mL$ 농도와 $250{\sim}1,000{\mu}g/mL$ 농도에서 대조군보다 유의적으로 높은 분비량을 보인 반면, IFN-${\gamma}$에서는 변화를 보이지 않았다. IL-2의 경우, $100{\sim}500{\mu}g/mL$에서 유의적으로 증가하는 경향을 보여주었다. 이상의 결과에 의하면 가시오가피 물 추출물은 마우스 비장 세포를 증식시키고, 사이토카인 분비량에도 영향을 줄 것으로 보이며, 면역 기관의 주요 기능을 증진시킬 가능성이 있을 것으로 사료된다. 따라서 가시오가피 물 추출물이 면역 증진 기능성식품 개발의 소재로 활용될 가능성이 있을 것으로 기대된다.

Effects of 17β-Estradiol on Colonic Permeability and Inflammation in an Azoxymethane/Dextran Sulfate Sodium-Induced Colitis Mouse Model

  • Song, Chin-Hee;Kim, Nayoung;Sohn, Sung Hwa;Lee, Sun Min;Nam, Ryoung Hee;Na, Hee Young;Lee, Dong Ho;Surh, Young-Joon
    • Gut and Liver
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    • 제12권6호
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    • pp.682-693
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    • 2018
  • Background/Aims: Intestinal barrier dysfunction is a hallmark of inflammatory bowel diseases (IBDs) such as ulcerative colitis. This dysfunction is caused by increased permeability and the loss of tight junctions in intestinal epithelial cells. The aim of this study was to investigate whether estradiol treatment reduces colonic permeability, tight junction disruption, and inflammation in an azoxymethane (AOM)/dextran sodium sulfate (DSS) colon cancer mouse model. Methods: The effects of $17{\beta}$-estradiol (E2) were evaluated in ICR male mice 4 weeks after AOM/DSS treatment. Histological damage was scored by hematoxylin and eosin staining and the levels of the colonic mucosal cytokine myeloperoxidase (MPO) were assessed by enzyme-linked immunosorbent assay (ELISA). To evaluate the effects of E2 on intestinal permeability, tight junctions, and inflammation, we performed quantitative real-time polymerase chain reaction and Western blot analysis. Furthermore, the expression levels of mucin 2 (MUC2) and mucin 4 (MUC4) were measured as target genes for intestinal permeability, whereas zonula occludens 1 (ZO-1), occludin (OCLN), and claudin 4 (CLDN4) served as target genes for the tight junctions. Results: The colitis-mediated induced damage score and MPO activity were reduced by E2 treatment (p<0.05). In addition, the mRNA expression levels of intestinal barrier-related molecules (i.e., MUC2, ZO-1, OCLN, and CLDN4) were decreased by AOM/DSS-treatment; furthermore, this inhibition was rescued by E2 supplementation. The mRNA and protein expression of inflammation-related genes (i.e., KLF4, NF-${\kappa}B$, iNOS, and COX-2) was increased by AOM/DSS-treatment and ameliorated by E2. Conclusions: E2 acts through the estrogen receptor ${\beta}$ signaling pathway to elicit anti-inflammatory effects on intestinal barrier by inducing the expression of MUC2 and tight junction molecules and inhibiting pro-inflammatory cytokines.

황정(黃精)으로부터 유래한 조다당류의 선천면역 활성에 의한 유방암 세포주 전이 억제 효과 (Antimetastatic Effects of Crude Polysaccharide Isolated from Polygonati Rhizoma on 4T1 Breast Cancer Cells by Activation of Innate Immune System)

  • 지해리;황덕상;이창훈;장준복;이진무
    • 대한한방부인과학회지
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    • 제32권4호
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    • pp.1-13
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    • 2019
  • Objective: This study is aimed to investigate the anti-tumor metastasis by innate immunomodulating effects of crude polysaccharide isolated from Polygonati Rhizoma (CP-PR) on 4T1 breast cancer cells. Methods: CP-PR was isolated from Polygonati Rhizoma. Antimetastatic experiments were conducted in vivo mouse model by using 4T1 breast cancer cells. The cell viability of CP-PR was tested with normal spleen and 4T1 breast cancer cells. To observe the activation of macrophages with/without 4T1 breast cancer cells, production of tumor necrosis factor-${\alpha}$ ($TNF-{\alpha}$), interleukin-6 (IL-6), IL-10 and IL-12 were measured with enzyme-linked immunosorbent assay (ELISA), respectively. In addition, the lysis of YAC-1 cells and the production of granzymes were measured to observe the activation of natural killer (NK) cell. Results: Intravenous administration of CP-PR significantly inhibited metastasis of 4T1 breast cancer cells. In an in vitro cytotoxicity analysis, CP-PR affected the growth of normal spleen and 4T1 breast cancer cells above specific concentration. The production of $TNF-{\alpha}$, IL-6, IL-10 and IL-12 were significantly increased in macrophages with CP-PR. As compared with control, CP-PR showed significantly higher production of $TNF-{\alpha}$, IL-10 and IL-12 in macrophages co-cultured with 4T1 breast cancer cells. The lysis of YAC-1 cells and the production of granzymes were significantly up regulated by CP-PR. Conclusion: CP-PR appears to have considerable activity on the anti-metastasis by activation of innate immune system.

포제 및 발효 가공에 따른 오미자와 구기자 물 추출물의 항염증 및 숙취해소 효과 (Anti-inflammation and hangover relief effects of Schisandra chinensis (SC) and Lycium chinense (LC) water extracts depending on drug processing and fermentation)

  • 김하림;김상준;김솔;김홍준;정승일;유강열;김선영
    • 대한한의학방제학회지
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    • 제26권4호
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    • pp.295-306
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    • 2018
  • Schisandra chinensis (SC) and Lycium chinense (LC) were widely distributed in Asia and the fruit has been used traditionally for medicinal herbs. The processing method was solid-state fermentation using Aspergillus oryzae for 48 h after stir-frying treatment at $220^{\circ}C$ for 12 min. In this study, in vitro the anti-inflammatory effect and in vivo hangover reduction were compared to unprocessed SC and LC water extract. Anti-inflammatory effects have been evaluated in pro-inflammatory mediators which were secreted by lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Nitric oxide (NO) was determined using Griess reaction. Proinflammatory cytokines such as tumor necrosis factor $(TNF)-{\alpha}$ and interleukin $(IL)-1{\beta}$ were measured by enzyme-linked immunosorbent assays (ELISA). Alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities were compared to processed SC or LC and mixtures thereof (1:1). In vivo study was compared to hangover relief in alcohol-fed mice. After administering a mixture of SC and LC (300 mg/kg) water extract (1:1), mice were fed 3 g/kg of ethanol. Serum was collected at 1, 3, and 5 h intervals to analyze ethanol and acetaldehyde levels using a colorimetric assay kit. The processed SC and LC water extracts compared to raw materials significantly inhibited LPS-induced NO and inflammatory cytokine production in RAW 264.7 cells. The results of the hangover mouse model are also consistent with anti-inflammatory effects. These results suggest that processed SC and LC extracts may be functional materials for the treatment of inflammation and hangover.

사과 왜성대목 무독묘 생산을 위한 바이러스 제거 방법 비교 (Comparison of Virus Elimination Methods for Disease-free Seedlings of the Apple Dwarfing Rootstock)

  • 권영희;이정관;김희규;김경옥;박재성;허윤선;윤여중
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2019년도 춘계학술대회
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    • pp.54-54
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    • 2019
  • Apple (Malus domestica) is one of the most economically important fruits in Korea. But virus infection has decreased sustainable production of apple and caused the serious problems such as yield loss and poor fruit quality. Virus or viroid infection including Apple chlorotic leaf spot virus (ACLSV), Apple stem pitting virus (ASPV), Apple stem grooving virus (ASGV), Apple mosaic virus (ApMV) and Apple scar skin viroid (ASSVd) has been also reported in Korea. In many cases, apple is infected with virus and viroid with no specific symptoms, the damage caused by the virus are unaware significantly. In our research, we tried to eliminate viruses in the rootstock for the disease-free seedlings of the apple dwarfing rootstock M.9 and M.26. The method of virus elimination was meristem culture, heat($37^{\circ}C$, 6weeks) treatment and chemistry($Ribavirin^{(R)}$) treatment. The analytical methods commonly used for the detection of virus is Enzyme-linked Immuno-Sorbent Assay(ELlSA) and Reverse Transcription-polymerase Chain Reaction(RT-PCR). RT-PCR method was more 30% sensitive than ELISA method. Efficiency of method eliminate virus appeared meristem method > heat treatment > chemistry treatment. The higher acquisition rate of disease-free seedlings is 30~40% on meristem treatment. In meristem treatment, the apple dwarfing rootstock M.9 gained infection ratio of ACLSV, ASPV and ASGV were 45%, 60% and 50% respectively. In the apple dwarfing rootstock M.26, infection ratio of ACLSV, ASPV and ASGV were 40%, 55%, 55%, respectively. Based on our results, it was found that most effective method of disease-free seedlings apple dwarfing rootstocks was by meristem treatment than heat method and chemistry treatment.

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홍도라지 추출물이 마우스에서 분리한 비장세포에서 lipopolysaccharide로 유도된 염증에 미치는 영향 (Mitigation effects of red Platycodon grandiflorum extract on lipopolysaccharide-induced inflammation in splenocytes isolated from mice)

  • 박은정;이유숙;정현철;이성현;이해정
    • Journal of Nutrition and Health
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    • 제52권3호
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    • pp.243-249
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    • 2019
  • 본 연구에서는 LPS로 활성화된 마우스 비장세포에서 Platycodin D가 함유된 홍도라지 추출물의 항염증 효능을 알아보기 위하여 비장세포 증식능과 NO 생성 및 염증 관련 사이토카인을 측정하였다. 결과를 요약하면 다음과 같다. 1. 마우스 비장세포에 $1{\mu}g/mL$ 농도의 LPS를 처리하였을 때 비장세포의 증식능이 3배 이상 증가하였으며 홍도라지 추출물 처리 시 증가 된 증식능이 유의하게 감소되었다. 2. 마우스 비장세포에 $1{\mu}g/mL$ 농도의 LPS를 처리하였을 때 비장세포의 NO생성이 증가하였으며, 홍도라지 추출물 처리 시 농도 의존적으로 증가 된 NO생성이 줄어들었다. 3. 마우스 비장세포에 $1{\mu}g/mL$ 농도의 LPS를 처리하였을 때 염증관련 사이토카인 IL-6와 항염증 사이토카인 IL-10 분비가 증가되었으며, 홍도라지 추출물 처리 시 농도 의존적으로 증가 된 IL-6의 분비가 감소되었다. IL-10 분비에는 유의적인 차이가 없었다. 위의 결과를 종합하여 볼 때, 본 연구는 홍도라지 추출물이 ex vivo 실험을 통해 항염증관련 인자들의 조절을 통하여 과민면역반응을 효과적으로 억제한다는 근거를 확인하였다. 이에 동물실험과 인체적용시험을 통해 홍도라지 추출물의 과민면역반응 억제 효능에 관한 후속 연구가 필요할 것으로 사료된다.

대한민국 사슴농가 종사자의 라임병 혈청유병률 및 위험요인 (Seroprevalence and risk factors of Lyme disease among Korean deer farmers)

  • 딜라람 아지리아;조재학;유석주;박지혁
    • 농촌의학ㆍ지역보건
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    • 제44권2호
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    • pp.82-89
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    • 2019
  • 목적 : 이번 연구는 인수공통감염병의 고위험군인 사슴농가 종사자를 대상으로 라임병의 감염 실태 파악 및 위험요인 분석을 위해 수행하였다. 대상 및 방법 : 전국 시 군 지역의 사슴농가를 중심으로 516명에 대해 설문조사 및 혈청검사를 실시하였다. 라임병 진단방법은 IFA(Indirect Immunofluorescence antibody Assay, 간접면역형광항체법)와 IFA검사의 높은 위양성률을 보완하기 위해 ELISA 검사 그리고 Western Blot 법을 이용하였다. 결과 : 전국 사슴농가 종사자 516명의 라임병 최종 혈청 유병률은 2.3%이었으며, 엘크 (Cervus Canadensis)만을 기르는 사슴 농가 종사자의 라임병 혈청유병률이 3.6%로 다른 종류의 사슴을 키우는 사슴 농가 종사자보다 라임병 발병 위험이 통계적으로 유의하게 높았다(p = 0.033). 결론 : 국내 사슴농가 종사자들이 인수공통감염병인 라임병에 노출되어 있음을 확인하였고, 키우는 사슴의 종류나 작업 행태, 보호복 착용 여부 등에 따라 라임병 노출의 가능성이 다름을 확인할 수 있었다.

오령산 정제 개발 및 항염증 효과 (Effect of Anti-inflammation on Oryeong-san Formulation for Mix Extract Tablet)

  • 김세진;임현희;남원희;손수미;최혜민;김명진;김정옥;이화동
    • 동의생리병리학회지
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    • 제34권6호
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    • pp.348-354
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    • 2020
  • Oryeong-san (ORS) is a traditional Korean herbal medicine widely used for renal associated diseases, composed of five medicine herbs; Atractylodes japonica Koidzumi, Cinnamomum cassia Presl, Polyporus umbellatus Fries, Poria cocos Wolf and Alisma orientale Juzepzuk. We studied to improve the convenience of intake and portability by developing modernized dosage forms, and examined the effect on anti-inflammation of ORS. In order to develop the tablet formulation of ORS (ORS-F), the tablets were evaluated on the basis of physical characteristics include diameter, thickness, weight variation, hardness, friability and disintegration. To analyze the marker components of ORS-F, eight index markers from five herbal medicines were chosen. And the method using high performance liquid chromatography (HPLC) with diode-array detector method was established for the simultaneous analysis. The biological activities were examined the effect of ORS-F on pro-inflammation mediated by LPS-stimulation. The production of nitric oxide (NO) and cytokines were determined by reacting cultured medium with griess reagent and enzyme-linked immunosorbent assay (ELISA). The expression of cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS) were investigated by Western blot and RT-PCR. The anti-oxidant activities of OJS-F increased markedly, in a dose-dependent manner. and, The total phenolic compound and flavonoids contents of OJS-F were 10.20±0.09 ㎍/㎎ and 12.86±0.86 ㎍/㎎. OJS-F which is LPS has diminished in the LPS-induced release of inflammatory mediators (NO, iNOS, COX2 and PGE2) and pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) from the RAW264.7 macrophages. Therefore, the developed formulation for tablet of ORS-F provide efficiency and usability, and indicated effect of anti-inflammation.

Restorative effects of Rg3-enriched Korean Red Ginseng and Persicaria tinctoria extract on oxazolone-induced ulcerative colitis in mice

  • Ullah, H.M. Arif;Saba, Evelyn;Lee, Yuan Yee;Hong, Seung-Bok;Hyun, Sun-Hee;Kwak, Yi-Seong;Park, Chae-Kyu;Kim, Sung Dae;Rhee, Man Hee
    • Journal of Ginseng Research
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    • 제46권5호
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    • pp.628-635
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    • 2022
  • Background: Ulcerative colitis (UC) is the large intestine disease that results in chronic inflammation and ulcers in the colon. Rg3-enriched Korean Red Ginseng extract (Rg3-RGE) is known for its pharmacological activities. Persicaria tinctoria (PT) is also used in the treatment of various inflammatory diseases. The aim of this study is to investigate the attenuating effects of Rg3-RGE with PT on oxazolone (OXA)-induced UC in mice. Methods: A total of six groups of mice including control group, OXA (as model group, 1.5%) group, sulfasalazine (75 mg/kg) group, Rg3-RGE (20 mg/kg) group, PT (300 mg/kg) group, and Rg3-RGE (10 mg/kg) with PT (150 mg/kg) group. Data on the colon length, body weight, disease activity index (DAI), histological changes, nitric oxide (NO) assay, Real-time PCR of inflammatory factors, ELISA of inflammatory factors, Western blot, and flow cytometry analysis were obtained. Results: Overall, the combination treatment of Rg3-RGE and PT significantly improved the colon length and body weight and decreased the DAI in mice compared with the treatment with OXA. Additionally, the histological injury was also reduced by the combination treatment. Moreover, the NO production level and inflammatory mediators and cytokines were significantly downregulated in the Rg3-RGE with the PT group compared with the model group. Also, NLR family pyrin domain containing 3 (NLRP3) inflammasome and nuclear factor kappa B (NF-𝛋B) were suppressed in the combination treatment group compared with the OXA group. Furthermore, the number of immune cell subtypes of CD4+ T-helper cells, CD19+ B-cells, and CD4+ and CD25+ regulatory T-cells (Tregs) was improved in the Rg3-RGE with the PT group compared with the OXA group. Conclusion: Overall, the mixture of Rg3-RGE and PT is an effective therapeutic treatment for UC.