• Title/Summary/Keyword: Monocyte

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High Hydrostatic Pressure Extract of Red Ginseng Attenuates Inflammation in Rats with High-fat Diet Induced Obesity

  • Jung, Sunyoon;Lee, Mak-Soon;Shin, Yoonjin;Kim, Chong-Tai;Kim, In-Hwan;Kim, Yangha
    • Preventive Nutrition and Food Science
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    • v.20 no.4
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    • pp.253-259
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    • 2015
  • Chronic low-grade inflammation is associated with obesity. This study investigated effect of high hydrostatic pressure extract of red ginseng (HRG) on inflammation in rats with high-fat (HF) diet induced obesity. Male, Sprague-Dawley rats (80~110 g) were randomly divided into two groups, and fed a 45% HF diet (HF) and a 45% HF diet containing 1.5% HRG (HF+HRG) for 14 weeks. At the end of the experiment, the serum leptin level was reduced by the HRG supplementation. The mRNA expression of genes related to adipogenesis including peroxisome proliferator-activated receptor-gamma and adipocyte protein 2 was down-regulated in the white adipose tissue (WAT). The mRNA levels of major inflammatory cytokines such as tumor necrosis factor-${\alpha}$, monocyte chemoattractant protein 1, and interleukin-6 were remarkably down-regulated by the HRG in WAT. These results suggest that HRG might be beneficial in ameliorating the inflammation-associated health complications by suppressing adipogenic and pro-inflammatory gene expression.

Studies on Relation of Heartworm and Eosinophils in Blood of Jindo Dogs (진도견 혈액내 기생충과 호산구 관계 조사)

  • 김자숙;이태욱
    • Korean Journal of Veterinary Service
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    • v.13 no.1
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    • pp.80-89
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    • 1990
  • The present study was conducted in order to get the relationship of heartworm, Dirofilaria immitis and eosinophils in blood of Jindo dogs. Blood samples were taken from 141( man 31, womam 110) of yellow, 44 ( man 17, woman27) of white Jindo dogs in Jindo area. The results obtained in this study were summarized as follows : 1. There were no significant differences of the hematological values in comparison with others reported values, but the mean corpuscular hemoglobin concentration and the number of eosinophils were high in comparison with other reported values. 2. The mean values of total white blood cell count(P<0.05), neutrophil(P<0.05) and monocyte(P< 0.05) were that the yellow dogs and a tendency toward fisher values than the white dogs, but no significant differences were observed. 3. Age-related differences were detected for the total erythrocyte count(P<0.05), hemoglobin content (P<0.001), PCV(P<0.001) and the number of eosinophils(P<0.001). 4. The direct and indirect eosinophil counts were increased with age, there were no significant differences of the values between two groups. 5. Dirofilaria immitis was found in 34(18.4%), increased with age and were relatively significant differences in areas of the 185 Jindo dogs. 6. Survey for hematological values of Dirofilaria immitis infected dogs with direct and indirect method, mean values of eosinophil were 2,788/ ${\mu}l,$ 3,021/ ${\mu}$l, respectively. They showed that eosinophil had a tendency toward higher values than others, but others were no significant differences.

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Biocompatibility of the Prepared Biodegradable Film from Algin and Chitosan (Algin과 Chitosan으로부터 제조한 생분해성 Film의 생체적합성)

  • 황성규;류정욱;이홍열;김용렬;이한섭;김판기;배지선
    • Journal of Food Hygiene and Safety
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    • v.14 no.1
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    • pp.90-96
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    • 1999
  • Biodegradable films were prepared by solution blending method in the weight ratio of Chitosan and Algin for the purpose of useful bioimplants. The possibility of bioimplants, which prepared from natural polymers as a skin substitute and food wrapping materials were evaluated by measuring the biodegradability. these biodegradable films were inserted in the back of rats and their biodegradability was investigated by hematological change as a function of time. Rats study showed that low-Chitosan induced increments of monocyte and basophil after 48 hours of implantation. And medium-Chitosan showed increase of lymphocyte and decreased neutrophil counts after 48 hours of implantation. Low, medium Chitosan showed high hemoglobin contents, medium and high Chitosan showed high hematocrit value after 48 hours of implantation. As a result, medium, high-Chitosan induced potential incompatibility in the tissue after 48 hours, but there was little effects to the skin inflammation. The values of biodegradable films, which prepared from natural polymers measured in this study were some satisfiable results at short period with those of ideal skin bioimplants and artificial skin.

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Anti-inflammatory effect of Malus domestica cv. Green ball apple peel extract on Raw 264.7 macrophages

  • Lee, Eun-Ho;Park, Hye-Jin;Kim, Byung-Oh;Choi, Hyong-Woo;Park, Kyeung-Il;Kang, In-Kyu;Cho, Young-Je
    • Journal of Applied Biological Chemistry
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    • v.63 no.2
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    • pp.117-123
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    • 2020
  • We examined the anti-inflammatory effect of the peel extract of the newly bred Korean apple (Malus domestica Borkh.) cultivar Green ball. To test its possible use as anti-inflammatory functional material, Raw 264.7 macrophages were treated with pro-inflammatory lipopolysaccharide (LPS) in the presence or absence of Green ball apple peel ethanol extract (GBE). Notably, up to 500 ㎍/mL of GBE did not result in any signs of inhibition on cellular metabolic activity or cytotoxicity in Raw 264.7 macrophages. Supplementation with GBE to LPS-treated Raw 264.7 macrophage significantly suppressed various pro-inflammatory responses in a dose-dependent manner, including i) nitric oxide (NO) production, ii) accumulation of inducible NO synthase and cyclooxygenase-2, iii) phosphorylation of nuclear factor-kappa B (NF-κB) subunit p65, and iv) expression of pro-inflammatory biomarker genes, including tumor necrosis factor alpha, interleukin 1 beta, interleukin 6, monocyte chemoattractant protein-1, and prostaglandin E synthase 2.

Studies on Normal Synovial Fluid from Tibiotarsal Joints of Korean Cattle 1. Gross Appearance and Cellular Constituents (한우(韓牛)의 관절골액(關節滑液)에 관한 연구(硏究) 1. 경부관절골액(脛부關節滑液)의 성상(性狀)과 세포조성(細胞組成)에 관하여)

  • Han, Hong Ryul
    • Korean Journal of Veterinary Research
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    • v.16 no.2
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    • pp.179-185
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    • 1976
  • The gross appearance, cellular constituents, and quality of mucin clot of synovial fluid from the normal tibiotarsal joints of 57 healthy Korean cattle were investigated. The results obtained were summarized as followings. 1. The gross appearance of the synovial fluid were quite clear without any minute particles of flocculent, colourless (78.95%) or slightly yellowish (21.05%), and it did not coagulate within the 24 hours after sampling. 2. The mean number of leucocytes for the entire group was $127.68{\pm}13.84/mm^3$ (SE) with a range of 0 to $627/mm^3$ for individual samples. In the total cell count no significance among the investigated age and sex categories was found. 3. The mean differential values for the groups ware: neutrophil, $9.36{\pm}1.67%$; lymphocyte, $57.66{\pm}8.34%$; monocyte, $24.70{\pm}2.22%$; eosinophil, $1.45{\pm}0.27%$; and macrophage, $5.83{\pm}1.13%$. No basophils were observed in stained smears of synovial fluid. 4. Normal mucin clot quality was recorded for 94.7% of the animals, but 5.3% were observed to have fair mucin clot quality. Quality of mucin clot was approximately equal for bulls, cows, and calves.

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Isolation and Elucidation of Specific RNAs by Treatment of Rhus verniciflua Stokes Extract to U937 Cell (옻추출물 처리에 의한 U937 세포에서의 특정 RNA 발현 양상)

  • Jeong, Mi-Young;Oh, Se-Wook
    • Korean Journal of Food Science and Technology
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    • v.40 no.5
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    • pp.593-598
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    • 2008
  • Differential display RT-PCR was used for screening the differentially expressed specific genes by Rhus verniciflua extract treatment to U937 cell, human leukemic monocyte. As a result, 19 clones differentially expressed were detected. Among the detected clones, one clone was confirmed to be over-expressed by R. verniciflua extract treatment in Northern blot analysis. Nucleotide sequence of the clone showed 100% homology with H2A histone family member Z gene. Therefore, it is concluded that the treatment of R. verniciflua extract to U937 cell specifically induces the expression of H2A.Z gene but its role should be elucidated by future works.

Interleukin-8 production and interleukin-8 mRNA expression induced by lipopolysaccharides from Prevotella intermedia and Prevotella nigrescens in monocyte-derived macrophages (Prevotella intermedia 및 Prevotella nigrescens의 지질다당질이 대식 세포에서의 Interleukin-8 생성에 미치는 영향)

  • Kim, Sung-Jo
    • Journal of Periodontal and Implant Science
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    • v.39 no.2
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    • pp.177-184
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    • 2009
  • Purpose: Interleukin-8 (IL-8) is an important mediator of immune and inflammatory reactions and is produced by a variety of different cell types. This study was undertaken to investigate the effects of lipopolysaccharides (LPSs) from Prevotella intermedia and Prevotella nigrescens, the major causes of inflammatory periodontal disease, on the production of IL-8 and the expression of IL-8 mRNA in differentiated THP-1 cells, a human monocytic cell line. Methods: LPSs from P. intermedia ATCC 25611 and P. nigrescens ATCC 33563 were prepared by the standard hot phenol-water method. THP-1 cells were incubated in the medium supplemented with phorbol myristate acetate to induce differentiation into macrophage-like cells. Results: We found that LPS preparations from P. intermedia and P. nigrescens can induce IL-8 mRNA expression and stimulate the release of IL-8 in differentiated THP-1 cells without additional stimuli. Conclusions: There are no previous reports of the ability of P. intermedia and P. nigrescens LPS to stimulate the release of IL-8, and the present study clearly shows, for the first time, that LPSs from P. intermedia and P. nigrescens fully induced IL-8 mRNA expression and IL-8 production in differentiated human monocytic cell line THP-1. The ability of P. intermedia and P. nigrescens LPS to promote the production of IL-8 may be important in the pathogenesis of inflammatory periodontal disease.

Involvement of macrophages in germ cell death in the rattestis with acute experimental testicular torsion

  • Moon, Changjong;Shin, Taekyun
    • Korean Journal of Veterinary Research
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    • v.44 no.3
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    • pp.329-334
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    • 2004
  • Ischemia/reperfusion(I/R) injury of the rat testis causes germ cell death and infiltration of inflammatory cells. To investigate the mechanism of germ cell death in torsion of the rat testis, apoptosis and macrophage activation were studied using the terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling(TUNEL) method and immunohistochemistry in the testes of Sprague-Dawley rats subjected to 1.5 h of ischemia, followed by 0, 1, 3, 6, 12, 24, 48 and 96 h of reperfusion. Apoptotic, TUNEL-positive cells were found at the base of the seminiferous epithelia after I/R. TUNEL-positive cells were significantly increased 6 h after repair of the torsion, and there was a significant peak in apoptosis 24 h after reperfusion, as compared with normal or sham-operated controls. In contrast, histological evidence of germ cell necrosis in the seminiferous tubules was first visible 24 h after reperfusion. In the testis of sham-operated rats, ED2-positive resident macrophages were found diffusely in the interstitial space, while ED1-positive monocyte-like macrophages were rarely found. After I/R, ED1-positive cells were significantly increased beginning 12 h after reperfusion, while ED2-positive immunoreactivity did not change during the experimental period. Together, the results of this study confirmed that increased numbers of ED1-positive macrophages, but not resident ED2-positive macrophages, infiltrated the interstitial space surrounding damaged tubules and induced germcell death.

Effects of Red Ginseng-Ejung-tang Water Extract on Cytokine Production in LPS-induced Mouse Macrophages

  • Park, Wansu
    • The Journal of Korean Medicine
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    • v.33 no.4
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    • pp.42-49
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    • 2012
  • Objectives: The purpose of this study was to investigate effects of Red Ginseng-Ejung-tang Water Extract (ER) on cytokine production in RAW 264.7 mouse macrophages stimulated by lipopolysaccharide (LPS). Methods: Levels of various cytokines such as interleukin (IL)-6, IL-10, IL-2, IL-12p70, vascular endothelial growth factor (VEGF), monocyte chemoattractant protein (MCP)-1, macrophage inflammatory protein (MIP)-2, keratinocyte-derived chemokine (KC), tumor necrosis factor (TNF)-alpha, granulocyte macrophage colony-stimulating factor (GM-CSF) were measured by high-throughput multiplex bead array cytokine assay based on xMAP (multi-analyte profiling beads) technology. Results: ER significantly decreased levels of IL-6, IL-10, IL-2, IL-12p70, VEGF, and MCP-1 for 24 hrs incubation at the concentrations of 25, 50, and $100{\mu}g/mL$ in LPS-induced RAW 264.7 cells (P < 0.05). But ER did not exert significant effects on production of MIP-2, KC, TNF-${\alpha}$, and GM-CSF in LPS-induced RAW 264.7 cells. Conclusions: These results suggest that ER has an anti-inflammatory property related with its inhibition of cytokine production in LPS-induced macrophages.

A Survey of Phenomenon of Increase and Decrease of WBC of Healthy Person in a Day (하루중 정상인의 백혈구수 변동상 조사)

  • 최흥민;이명화;구성회;한식일;나동진
    • Journal of Environmental Health Sciences
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    • v.1 no.1
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    • pp.5-8
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    • 1974
  • A survey was carried out in order to figure out of phenomenon of increasing and decreasing rate of WBC during a day in normal and healthy person from Oct. 1, 1972 to Nov. 31, 1972. For this survey, it was classified by two groups 50 male students and 35 female students who are from 18 to 25 years old. The blood sampling was collected by thin smear method 8 times from 7:30 A.M. to 10:30 P.M. by 2 hours intervals and calculated by direct manual method. As the results of this survey, the following conclusions were obtained 1) Number of WBC was the lowest degree during the forenoon, and it was the highest degree around the midnight. It was increase from around the noon up to the midnight and decrease from the midnight up to around the noon. 2) Increasing and decreasing curve of WBC of male and female was keeping same pace with both sex in a day. 3) Increase and decrease of lymphocyte and eosinophil was keeping almost same pace with WBC. 4) Increasing rate of number of monocyte was more speedily increasing during the afternoon than the night.

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