• Title/Summary/Keyword: Eosinophile

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Enhancement of Allergen-related Eosinophilic Airway Inflammation and Airway Hyperresponsiveness by House Dust Particles in Mice (생쥐에서 가정분진 입자로 인한 항원관련 호산구성 기도 염증과 기도 과민성의 증대)

  • Lim, Heung-Bin;Kim, Seung-Hyung
    • Journal of Korean Society for Atmospheric Environment
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    • v.24 no.3
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    • pp.321-328
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    • 2008
  • The number of patient with allergic asthma and atopy have increased in the cities of Korea steadily. In order to elucidate the primary factor, we investigated whether the house dust particles collected from an apartment of the middle classes has promoting effects of allergen-related airway inflammation and airway hyperresponsiveness. Mice were treated with 0.1 mL of 1 mg/mL of house dust particles suspension by intratracheal instillation once weekly for 10 weeks combined with ovalalbumin (OVA) sensitization. Intratracheal instillation of house dust particles and OVA sensitization caused an increase in the level of serum L-lactate dehydrogenase (LDH), immunoglobulun-E (IgE) and histamine, and an elevation in respiratory resistance. It also enhanced infiltration of eosinophils in the bronchoalveolar lavage fluid (BALF) of mice, IgE and eotaxin expression in blood, and T helper type 2 cell derived cytokine levels such as of interleukin (IL)-4, IL-13 and IL-5 in the BALF. However, it did not influence T helper type 1 cytokine such as interferon-gamma in the BALF. These results indicate that house dust particles elevate allergen-related airway inflammation and airway hyperresponsiveness in mice and may play an important role in the aggravation of asthma and atopy in Korea.

Dexamethasone Downregulates Expressions of 14-3-3β and γ-Isoforms in Mice with Eosinophilic Meningitis Caused by Angiostrongylus cantonensis Infection

  • Tsai, Hung-Chin;Chen, Yu-Hsin;Yen, Chuan-Min;Chung, Li-Yu;Wann, Shue-Ren;Lee, Susan Shin-Jung;Chen, Yao-Shen
    • Parasites, Hosts and Diseases
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    • v.57 no.3
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    • pp.249-256
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    • 2019
  • Steroids are commonly used in patients with eosinophilic meningitis caused by A. cantonensis infections. The mechanism steroids act on eosinophilic meningitis remains unclear. In this mouse experiments, expressions of 14-3-3 isoform ${\beta}$ and ${\gamma}$ proteins significantly increased in the CSF 2-3 weeks after the infection, but not increasedin the dexamethasone-treated group. Expression of 14-3-3 ${\beta}$, ${\gamma}$, ${\varepsilon}$, and ${\theta}$ isoforms increased in brain meninges over the 3-week period after infection and decreased due to dexamethasone treatment. In conclusion, administration of dexamethasone in mice with eosinophilic meningitis decreased expressions of 14-3-3 isoform proteins in the CSF and in brain meninges.

Effects of Salviae miltiorrhizae on Inflammatory Cells Associated with Asthma via Splenocyte, BMMC, Eosinophil (Splenocyte, BMMC, eosinophil을 통해 본 단삼(丹蔘)이 천식 관련 염증세포에 미치는 영향)

  • Jeong, Seung-Yeon;Kim, Jin-Ju;Jung, Hee-Jae;Jung, Sung-Ki
    • The Journal of Internal Korean Medicine
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    • v.30 no.1
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    • pp.9-23
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    • 2009
  • Objectives : Asthma is a chronic inflammatory disorder of the airways by many cells such as mast cells, Th2 lymphocytes and eosinophile. The present study was aimed to evaluate the effects of Salviae miltiorrhizae (SM) on T cell cytokine production, mast cells. and eosinophils, Methods : We screened 13 herbs to find compounds with potential to control Th cytokine production. using concanavalin A (con A)-activated splenocyte cultures. Con A-activated $IFN-\gamma$ and IL-4 levels in supernatants of splenocyte cultures. Bone marrow derived mast cells (BMMC) were incubated with SM and then the expressions of membrane proteins of BMMC were analyzed by fluorescence activated cell sorter (FACS). BALB/c mice sensitized to ovalbumin (OVA) were challenged with aerosolized OVA for 6 weeks. During the last weeks some mice were treated with SM. Then eosinophils in bronchoalveolar lavage fluid (BALf) were counted and pathologic changes of lung tissue were observed with hematoxylin-eosin stain. Results : SM increased $IFN-\gamma$ level on splenocyte culture significantly. but had no significant effects on expressions of ICAM-1, CD62L, integrin $a_4$. c-kit, IL-3 receptors. CD11a, or IgE receptors of BMMC. SM treatment significantly inhibited eosinophil infiltrates in BALf and peribronchial lung inflammation. Conculusions : The present data suggested that SM may have an effect on Th cytokine secretion and eosinophils associated with asthma responses. Therefore SM might be of therapeutic value in treating asthma.

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The effects of pear phenolic compound and herbal drugs on tension of the tracheal smooth muscle, eosinophil and interleukin-4 in mouse model of allergic bronchial asthma induced by ovalbumin (배(리(梨)) 추출 Phenolic Compound 및 길경(桔梗) 행인(杏仁) 배합 투여가 Ovalbumin으로 유발된 천식 동물 모델에서 기관지 평활근 장력, 호산구 및 IL-4에 미치는 영향)

  • Jeong, Jong-Gil;Youn, Dae-Hwan;Na, Chang-Su
    • The Korea Journal of Herbology
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    • v.22 no.2
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    • pp.25-33
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    • 2007
  • Objectives : Oriental pear was used as treatment of asthma, control of blood pressure, diabetes in oriental medicine. The aim of this study was to observe the effects of Phenolic compound extracted from pear and herbal drugs to treat asthma. Methods : In order to study the effect of oral administration of phenolic compound extracted from pear and herbal drugs(Platycodon grandiflorum, Prunus armeniaca) on allergic asthma, mice were pre-treated by oral administration of the solution before antigen sensitization four times for 8 days. 2 days later, mice were actively sensitized with a subcutaneous injection of ovalbumin and 13 days later, they were provoked with ovalbumin aerosols. The animals were divided into four groups; Saline, orally administered saline. PC-A, orally administered Phenolic compound extracted from pear peel 10mg/kg/ml. PC-B, orally administered Phenolic compound extracted from pear peel and flesh 10mg/kg/ml. PC-C, orally administered pear 10m/kg/ml, Platycodon grandiflorum 24.4 mg/kg/ml and Prunus armeniaca 33.3 mg/kg/ml. Serum level of IgE, IL-4, cell numbers in the bronchoalveolar lavage fluid(BALF), and in vitro isometric contractile responses of the isolated tracheal smooth muscle(TSM) to acetylcholine(ACh, $0.1-1000{\mu}M$), KCl were measured. Results : Contractile responses of TSM to ACh were decreased in PC-A group at Ach 0.1, 0.3, 1 ${\mu}M$, decreased in PC-B at 0.1 ${\mu}M$ and decreased in PC-C at 0.1, 0.3, 1, 10, 30 ${\mu}M$. The maximal contractile response of TSM to KCl was decreased in PC-C group, The cell numbers of eosinophil in BALF were decreased in PC-C group, and those of macrophages in BALF were decreased in PC-A and PC-C group. Interleukin-4 in BALF was decreased in PC-A, PC-B, PC-C group. Conclusion : Based on the above results it is assumed that oral administration of phenolic compound extracted from pear and herbal drugs can help the treatment of deficiency allergic Asthma.

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Influence of Panax Ginseng on the Responce of Btressful Stimuli in the Experimental Animal exposed to Various Stress (인삼주정추출액이 스트레스에 폭로된 동물의 생체반응에 미치는 영향)

  • 김정진
    • Journal of Ginseng Research
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    • v.3 no.2
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    • pp.168-186
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    • 1979
  • Three hundred gram of Korean ginseng root was extracted with 95% ethanol on a boiling water bath for about 300 hr. Evaporation of alcohol yieled 50.2g of dark brown residue which was used by dissolving 4 mg of the residue in 1 ml of physiological saline. The ginseng group and the saline group received each day 0.5 ml per 100 g body weight of ginseng extract and physiological saline, respectively. Both the ginseng and saline group with stress were exposed to positive radial acceleration (1∼29g), cold (5$^{\circ}C$, 0$^{\circ}C$ &-10$^{\circ}C$) and heat (35$^{\circ}C$) environment, and surgical stress. After termination of the last stress, the tolerance, body weight, visceral organ weight, basal metabolism rate, rectal temperature, the number of erythrocyte and leucocyte, hemoglobin level, hematocrit ratio, total serum protein content and it's fraction and the content of adrenal ascorbic acid in the experimental animal exposed to stress were measured and at the corresponding periods, the same measurements were also carried out with the ginseng and the saline groups without stress exposure (serving as control). Results obtained were as follows. 1. Administration of ginseng does depressed the decrease of the tolerance, body weight, visceral organ weight, basal metabolism rate, the number of erythrocyte, hemoglobin value, hematocrit ratio and the A/G ratio in the mice and rats exposed to various stress. 2. The change of the rectal temperature, eosinophile counts, total serum protein content and the content of adrenal ascorbic acid of ginseng group that exposured to various stress facilitates the reaction to, and accelerates the recovery from the stress. 3. Even after hypophysectomy which served the link between the central and the peripheral portion of the stress mechanism, the adrenal ascorbic acid content of ginseng group decreased significantly more than that of the saline group 30 min. after administration of ACTH, while the value approached the normal level significantly closer in the ginseng group than in the saline group 1 and 2 hr after ACTH administration. Judging from the above results, it is concluded that administration of ginseng extract tolerated the experimental animals under the environment of stressfu1 stmuli, although the ginseng has no significant influence upon the stress mechanism in the absence of stressful stimuli. The site of action of the ginseng appears to be in the peripheral portion of the stress mechanism.

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Studies on the Hematologic Values and Blood Chemistry Values of Korean Native Ogolgye 1. Hematologic Values for Korean Native Ogolgye (한국재래오골계의 혈액상 및 혈액화학치에 관한 연구 - 1. 오골계의 혈액상에 관하여)

  • Rhee Han-Gie;Park Oak-Youn
    • Journal of the korean veterinary medical association
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    • v.20 no.4
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    • pp.233-238
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    • 1984
  • This experiment was conducted to investigate normal hematologic value of RBC, Hb, PCV, WBC, MCV, MCHC, thrombcyte, differential leukocyte count and diameter of RBC, with 10 males and 10 females of the 182 days- Korean Native Ogolgye designated the number

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Ultrastructural Study on the Thymus following the Administration of 5-Fluoruracil or Mitomycin (5-Fluorouracil 및 Mitomycin이 가슴샘의 미세구조에 미치는 영향)

  • Ko, Jeong-Sik;Ahn, E-Tay;Park, Kyung-Ho;Park, Dong-Boon;Kyung, Hong-Kee;Han, Young-Bok
    • Applied Microscopy
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    • v.27 no.1
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    • pp.13-30
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    • 1997
  • The experiment was performed to study the morphological responses of the thymus of the mice, to antitumour agents (5-Fluorouracil or mitomycin C). Healthy adult mice weighing 25 gm each were divided into normal and experimental groups. 5-Fluorouracil (60 mg/kg) or Mitomycin-C $(400{\mu}g/kg)$ were injected subcutaneously to the animals every other day. Animals were sacrificed at 4 days and 7 days following the first injection. Pieces of the tissue taken from the thymus were prefixed with 2.5% paraformaldehyde-l.5% glutaraldehyde, followed by post-fixation with 1% osmium tetroxide. Ultrathin sections stained with uranyl acetate and lead citrate were observed with a JEM 100 CX-II electron microscope. The observed results were as follow: 1. Apoptoses of T-lymphocytes were observed more frequently in the thymus of the experimental groups than in those of a normal group. 2. In the experimental group, the plasma cells with distended cisternae of the granular endoplasmic reticulum and the eosinophile leukocytes were observed frequently. 3. In the experimental group, newly forming Hassall's corpurscles were observed frequently. 4. In the mitomycin-treated group, the epithelial reticular cells containing distended perinuclear cisternae, distended the granular endoplasmic reticula and pyknotic nuclei were observed in the cortico-medullary junctional area. 5. In the mitomycin-treated group, nuclear bodies with medium electron dense materials were often observed in the T lymphocyte. 6. In the 5-fluorouracil-treated groups, fused and dissolved tonofilament bundles and apoptotic bodies were observed in the some epithelial reticular cells in the medullary area. 7. In the 5-fluorouracil-treated groups, some elongated and bar-shaped lysosomes with electron lucent gap were often observed in the macrophages. 8. In the 5-fluorouracil-treated group, membrane complex of the smooth endoplasmic reticulum were ofen observed in the macrophage. From the above results, it was suggested that 5-fluorouracil or mitomycin could induce rapid involution of the thymus, and disturb maturation and differentiation of T lymphocytes, and, in turn, supress immunity.

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Effects of Baikal Skullcap (Scutellaria baicalensis Georgi) extracts on the recovery of liver function in $CCl_4$-exposed rats (황금 추출물이 $CCl_4$ 중독 쥐의 간장기능 회복에 미치는 영향)

  • Lim, Sang-Cheol
    • Korean Journal of Plant Resources
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    • v.23 no.1
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    • pp.54-59
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    • 2010
  • The objective of present study was to investigate the effect of Baikal Skullcap (Scutellaria baicalensis Georgi) extracts on recovery of liver function in $CCl_4$-exposed rats. The values of RBC, Hb and PCV did not show significant difference among all treatment groups. The counts of WBC was lower in Skullcap extracts groups than in control group. The ratio of neutrophils and eosinophiles were decreased, and the ratio of lymphocytes and monocytes were increased with increased administration of Skullcap extracts dosage. The ratio of basophils was, however, not significantly different among all treatment groups. The concentration of plasma total protein and albumin showed no significant difference among all treatment groups. The ratio of albumin/globulin was higher in Skullcap extracts groups than in control group. The activities of GOT, GPT and LDH were lower in Skullcap extracts groups, compared to control group. The liver IL-$1{\beta}$, IL-6 and TNF-$\alpha$ concentration were decreased, and IL-10 was increased in Skullcap extract groups, compared to control group. Results of this study suggested that Skullcap may alleviate liver inflammatory reaction induced by liver toxicity.

Effects of Bacillus Calmette-Guerin (BCG) on the DNA Synthesis of Mouse Duodenal Mucosal Epithelial Cells Inoculated with Ehrlich Carcinoma Cells (Bacillus Calmette-Guerin (BCG) 투여가 Ehrlich 종양세포를 이식한 생쥐 샘창자 상피세포의 DNA합성에 미치는 영향)

  • Ko, Jeong-Sik;Kim, Heung-No;Park, Kyung-Ho;Park, Dae-Kyoon;Kim, Duk-Soo
    • Applied Microscopy
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    • v.40 no.4
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    • pp.193-200
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    • 2010
  • This experiment was performed to evaluate the morphological responses of the duodenal epithelial cells of the mouse, inoculated with Ehrlich carcinoma cells in the inguinal area, following administration of Bacillus Calmette-Guerin (BCG). In the experimental groups, each mouse was inoculated with $1{\times}10^7$ Ehrlich carcinoma cells subcutaneously in the inguinal area. From next day after inoculations, 0.2 mL of saline or BCG (0.5 mL/25 g B.W.: $0.03{\times}10^8\sim0.32{\times}10^8$ CFU) were injected subcutaneously to the animals every other day, respectively. The day following the 7th injection of saline or BCG, each mouse was injected with a single dose of $0.7{\mu}Ci$/g of methyl-$^3H$-thymidine (25 Ci/mmol, Amersham Lab, England) through tail vein. Seventy minutes after the thymidine injection, animals were sacrificed, and duodenal tissues were taken and fixed in 10% neutral formalin. Deparaffinized sections were coated with autoradiographic emulsion EM-1 (Amersham Lab, England) in a dark room and dried and were placed in a light-tight box. The number of labeled epithelial cells in the duodenal mucosae (mean number of labeled epithelial cells per 3.5 mm length of mucosa) were observed and calculated. On the light microscopic study, duodenal mucosae had no severe morphological changes following the injection of BCG. In the tumor control and BCG treated groups, a number of small lymphocytes and eosinophile leucocytes are slightly increased as compared with those of the normal control ones. On the autoradiographic study, number of the labeled cells of normal control, tumor control and BCG-treated mice were 632.3 (${\pm}14.47$), 761.7 (${\pm}27.65$) and 505.0 (${\pm}17.09$) respectively. From the above results, BCG may suppress the DNA synthesis of the duodenal epithelial cells, but does not results severe structural defect on the duodenal mucosae. And it is suggested that BCG may greatly improve the anticancer therapy on certain kind of cancer.