• Journal of Microbiology and Biotechnology
• /
• 제33권6호
• /
• pp.823-830
• /
• 2023

Lactococcus lactis is a lactic acid bacterium and used in the dairy food industry. The ameliorating effects of Lactobacillus species on atopic dermatitis (AD) have been extensively studied, but the specific effect of L. lactis strains has not yet been investigated. In this study, the efficacy of L. lactis LB 1022, isolated from natural cheese, was evaluated using RAW 264.7, HMC-1 and HaCaT cell lines and an ovalbumin-sensitized AD mouse model. L. lactis LB 1022 exhibited nitric oxide suppression and anti-allergy and anti-inflammatory activity in vitro. Oral administration of L. lactis LB 1022 to AD mice significantly reduced the levels of IgE, mast cells, and eosinophils, and a range of T cell-mediated T helper Th1, Th2, and Th17-type cytokines under interleukin (IL)-10, transforming growth factor-β (TGF-β), thymus and activation-regulated chemokine (TARC), and thymic stromal lymphopoietin (TSLP). In addition, L. lactis LB 1022 treatment increased the concentration of short-chain fatty acids. Overall, L. lactis LB 1022 significantly modulated AD-like symptoms by altering metabolites and the immune response, illustrating its potential as candidate for use in functional food supplements to alleviate AD.

• 한국버섯학회지
• /
• 제12권4호
• /
• pp.324-329
• /
• 2014

본 연구에서는 버섯추출물 (42개)의 in vitro 항알레르기 효능탐색을 위해 랫드비만세포 (RBL-2H3 cell)에서 면역글로불린 (IgE)가 매개한 탈과립에 대한 저해 효과를 실험하였다. 이를 위해 anti-DNP IgE 및 DNP-HSA에 의해 알레르기반응이 유발된 랫드비만세포에서 버섯 추출물의 IL-4과 ${\beta}$-hexosaminidase 분비량에 대한 저해활성과 세포생존에 대한 영향이 분석되었다. 실험결과, IL-4 분비에 대해서는 팽이버섯 물추출물 등 5개의 버섯 추출물이 20% 이상의 우수한 저해효과를 나타내었으며, ${\beta}$-hexosaminidase 분비에 대해서는 영지버섯의 물추출물 등 8개의 버섯 추출물이 20% 이상의 비교적 우수한 저해활성을 나타내었다. 세포증식에 대해서는 잎새버섯의 물추출물등 대부분의 버섯 추출물이 우수한 세포증식효과를 나타내었다. 팽이버섯의 물추출물과 상황버섯의 물추출물은 ${\beta}$-hexosaminidase 및 IL-4 분비에 대해 모두 비교적 우수한 저해효과를 나타내었다. 추가로 2, 10, 50 ug/ml에서 실험된 영지버섯, 편각영지버섯, 눈꽃동충하초, 상황버섯 그리고 느타리버섯의 물추출물들은 ${\beta}$-hexosaminidase의 분비량을 농도-의존적으로 감소시켰다. 이상의 결과를 살펴볼때, 이들 in vitro 항알레르기 효과를 나타낸 버섯 추출물들은 추가실험을 통해 항알레르기 소재로의 활용성 검토가 필요하다고 사료되었다.

• 대한한방내과학회지
• /
• 제29권1호
• /
• pp.12-24
• /
• 2008

Background and Objective : Chungsangboha-tang (CSBHT) has analgesic, sedative, anti-convulsive and anti-histamine effects, so it alleviates the symptoms of asthma. For the comparison of anti-inflammatory effect(s) on CSBHT, PD098059 was used as a negative control. Materials and Methods : This study emphasized THP-1 cells, which had been well characterized as a human monocytic leukemic cell line. The cells resemble monocytes with respect to several criteria and can be differentiated into macrophage-like cells by treatment with PMA. By using the MTS assay, it was possible to prove the safety of CSBHT. Results : Results shows that the CSBHT did not affected cell survival within $10^{1}$ ng/ml to $10^{5}$ ng/ml. Especially, $10^{5}$ ng/ml CSBHT treated cells show 70% deduction of $TNF-{\alpha}$ gene expression against that of LPS treated group. Furthermore, $IL-1{\beta}$, IL-6, IL-8, IL-10 and $TNF-{\alpha}$ levels are down-regulated when treated with CSBHT with concentrations up to 100 ug/ml on monocyte-derived macrophages. Interestingly, CSBHT-treated samples showed that overall transcriptional activities were down-regulated to 20% of that of PD098059 ($TNF-{\alpha}$ inhibitor). At protein level, the expression of $TNF-{\alpha}$ showed similar results as that of transcriptional activity. Results show that the protein level decreased more in the CSBHT-treated group (487 ${\pm}$ 87 pg/ml) than in the LPS-treated group (703 ${\pm}$ 103 pg/ml). In addition, the protein level of IL-8 in the CSBHT treated-group (9.84 ${\pm}$ 3.28 ng/ml) decreased similar as the expression of the control and PD098059-treated groups. Conclusion : CSBHT affects immune response, especially allergic responses and suppression of inflammatory reaction. The results provide us an alternative way to care for clinical inflammatory diseases, not only asthma but also the other possible general inflammatory and allergic diseases.

• 한국한의학연구원논문집
• /
• 제16권2호
• /
• pp.83-90
• /
• 2010

Objective : The purpose of this study was to provide the information about Bojungikki-tang by domestic papers and theses. Method : Domestic papers related to Bojungikki-tang were reviewed and analyzed. These papers were classified by year, research method, experimental method, and subject. Result : The following results were obtained in this study. 1. The study of Bojungikki-tang started from 1984 and continued steadily. 2. The domestic papers about Bojungikki-tang were 47 volumes. Among them, there were 26 volumes since 2000. 3. Classified by research method from the year 2000, 20 experimental studies, 4 clinical experiments, and 2 documentary researches. 4. Classified by experimental method from the year 2000, 10 studies used mouse in vivo experiment and 4 studies used rat in vivo experiment and 6 studies used each cell in vitro experiment. 5. Classified by subject from the year 2000, papers related to immune enhancing effect, nerve and mental system, radiation protection effect, anti-allergy, anti-inflammatory, anti-cancer, remedy of diabetes, skin protection and so on. Conclusion : Many papers of experimental studies, clinical experiments and documentary researches related Bojungikki-tang are included in domestic journals. Bojungikki-tang is being researched variously in immune enhancing effect, nerve and mental system, radiation protection effect, anti-allergy, anti-inflammatory, anti-cancer, remedy of diabetes, skin protection and so on. However, more clinical studies on Bojungikki-tang are needed.

• Tuberculosis and Respiratory Diseases
• /
• 제80권4호
• /
• pp.392-400
• /
• 2017

Background: Most patients with influenza recover spontaneously or following treatment with an anti-viral agent, but some patients experience pneumonia requiring hospitalization. We conducted a retrospective review to determine the incidence and risk factors of pneumonia in hospitalized patients with influenza A or B. Methods: A total of 213 patients aged 18 years or older and hospitalized with influenza between January 2012 and January 2015 were included in this study. A reverse-transcriptase polymerase chain reaction assay was used to detect the influenza A or B virus in the patients' sputum samples. We collected demographic and laboratory data, combined coexisting diseases, and radiologic findings. Results: The incidence of pneumonia was higher in patients in the influenza A group compared to those in the influenza B group (68.6% vs. 56.9%), but this difference was not statistically significant. The presence of underlying respiratory disease was significantly associated with pneumonia in the influenza A group (adjusted odds ratio [OR], 3.975; 95% confidence interval [CI], 1.312-12.043; p=0.015). In the influenza B group, the white blood cell count (adjusted OR, 1.413; 95% CI, 1.053-1.896; p=0.021), platelet count (adjusted OR, 0.988; 95% CI, 0.978-0.999; p=0.027), and existence of an underlying medical disease (adjusted OR, 15.858; 95% CI, 1.757-143.088; p=0.014) were all significantly associated with pneumonia in multivariate analyses. Conclusion: The incidence of pneumonia was 65.7% in hospitalized patients with influenza A or B. The risk factors of pneumonia differed in hospitalized patients with influenza A or B.

• 동의생리병리학회지
• /
• 제21권5호
• /
• pp.1260-1270
• /
• 2007

The discovery of drugs on the treatment of mast cell-mediated allergic disease is a very important subject in human heath. The Socheongyoug-tang(SCYT) has been used for centruries as a traditional medicine in Korea and is known to have an anti-inflammatory effect. However, its specific mechanism of action is still unknown. In this report, we investigated the effect of hot water extract from SCYT on RBL-2H3 mast cell-mediated allergic reaction and studied its possible mechanism of action. SCYT inhibited compound 48/80-induced systemic anaphylaxis and serum histamine release in mice. SCYT decreased the passive cutaneous anaphylaxis reaction activated by Anti-lgE antibody-HSA. SCYT dose-dependently reduced histamine release from mice peritoneal mast cells activated by Anti-lgE antibody-HSA. SCYT increased cAMP and decreased compound 48/80-induced intracellular $Ca^{2+}$ levels. Our findings provide evidence that SCYT inhibits mast-derived allergic reactions, and also demonstrate the involvement of cAMP and intracellular $Ca^{2+}$ in these effects.

• 대한본초학회지
• /
• 제25권3호
• /
• pp.35-41
• /
• 2010

Objectives : Allergy is an immune dysfunction caused by degranulation from mast cells in the early phase of allergic disease including allergic rhinitis (AR). The purpose of this study was to investigate the effects of Osterici Radix, roots of Ostericum koreanum Maximowicz in human mast cells and experimental allergic animal models. Methods : The anti-allergic effect of Osterici Radix water extract (NK-W) was investigated in human mast cell line, HMC-1 cells, and compound 48/80-induced systemic anaphylactic response in rats and ovalbumin (OVA)-induced AR in mice. Animals were orally administrated with NK-W (10 and 50 mg/kg) or anti-histamine drug, dosodium cromoglycate (50 mg/kg), and then intraperitoneally injected with compound 48/80 (8 mg/kg) or sensitized with 0.1% OVA into nasal. Animals were observed plasma histamine and histological changes of nasal mucosa. Also, mast cell degranulation and histamine production were determined in compound 48/80-stimulated HMC-1 cells. Results : NK-W inhibited compound 48/80-induced degranulation of mast cells and histamine releasing in HMC-1 cells. NK-W decreased mortality and serum histamine releasing in compound 48/80-induced anaphylatic rats in a dose-dependently manner. NK-W also inhibited serum histamine levels in OVA-induced AR mice and improved abnormal histological changes such as expansion of grandular cells and hypertrophy of epithelium in the nasal mucosa. These results indicate that Osterici Radix water extract suppress allergic response through downregulation of mast cell activation. Conclusions : This study suggests that a therapeutic potential of Osterici Radix as a source of anti-allergic agents for use in a number of allergic diseases.

• 한국자원식물학회지
• /
• 제26권1호
• /
• pp.103-110
• /
• 2013

옻나무는 옻오름 같은 알러지 반응으로 인해 식품으로의 활용이 제한되므로 이러한 알러지 반응을 완화시키기 위하여 갈근 추출물과 혼합하여 알러지 억제효과를 평가하였으며, 알러지를 유발시키는 성분의 변화를 측정하여 화학적 구조변화 및 생물학적 알러지 반응 억제 양상을 관찰하였다. 이에 갈근 추출물에 대한 옻나무 추출물의 알러지 반응 완화효과를 RBL-2H3 세포에서 ${\beta}$-hexosaminidase의 양을 측정하여 평가하였으며, 갈근 추출물에서 매우 우수한 억제효능을 나타내었다. 또한, 갈근 추출물을 혼합한 결과 양성대조군 ketotifen보다 다소 우수한 효능이 나타났다. 옻나무 추출물의 알러지 유발물질 확인하고, 갈근과 혼합 추출 하였을 때의 알러지 유발물질 함량변화를 평가하기 위하여 GC/MS 분석을 실시하였다. 그 결과 4종의 알러지 유발물질을 확인할 수 있었으며, 갈근 추출물과 혼합시 알러지 유발물질은 그 함량이 적어지거나 소멸되었다. 따라서, 갈근과 혼합하여 추출하였을 때 함량이 낮아지거나 소멸되는 알러지 유발물질 4종에 대하여 탈과립 억제 효능을 측정하였다. 그 결과, 옻의 알러지 유발물질 4종으로부터 알러지를 유도한 RBL-2H3 세포에서 탈과립화 억제효능 양상이 유사하였으며, 이를 통해 갈근 추출물은 항알러지 효과를 나타냄을 알 수 있었다. 이러한 효능을 통하여 옻과 갈근을 혼합하여 추출한 복합추출물의 경우 옻의 문제점인 알러지 반응을 효과적으로 억제할 수 있을 것으로 사료된다.

• 대한한약학회:학술대회논문집
• /
• 대한한약학회 2007년도 Autumn Conference
• /
• pp.187-188
• /
• 2007

• Tuberculosis and Respiratory Diseases
• /
• 제70권4호
• /
• pp.347-351
• /
• 2011

We report here an unusual case of pericardial tuberculoma that was misdiagnosed as thymic carcinoma on an imaging study. A 48-year-old woman was referred for evaluation of an anterior mediastinal mass. Computed tomography (CT) scans of the chest displayed cystic masses mimicking thymic carcinoma at the anterior mediastinum. Pericardiotomy and surgical drainage of the cystic masses were done, and pathologic examination of the excised pericardial specimen showed a chronic granulomatous inflammation with necrosis, compatible with tuberculosis. Acid-fast bacilli were also identified in the specimen. After treatment with anti-tuberculosis drugs and steroids, the patient showed clinical improvement. Although tuberculous pericarditis usually presents as pericardial effusion or constrictive pericarditis, it can also present as a pericardial mass mimicking thymic carcinoma on CT. Therefore, we suggest that tuberculous pericardial abscess should be included in the differential diagnosis of a mediastinal mass in Korea, with intermediate tuberculosis prevalence.