• Title/Summary/Keyword: Pathogenic Factor

Search Result 240, Processing Time 0.029 seconds

IL-23 P19 Expression Induced by IL-17 and $IL-1{\beta}$ in Rheumatoid Arthritis Synovial Mononuclear Cells (류마티스관절염 환자의 활액 세포에서 IL-17과 $IL-1{\beta}$에 의한 IL-23p19의 발현 증가)

  • Cho, Mi-La;Heo, Yu-Jung;Oh, Hye-Jwa;Kang, Chang-Min;Lee, Seon-Yeong;Hong, Yeon-Sik;Kim, Ho-Youn
    • IMMUNE NETWORK
    • /
    • v.8 no.1
    • /
    • pp.29-37
    • /
    • 2008
  • Interleukin-23 (IL-23) is a novel pro-inflammatory cytokine which has been implicated to play a pathogenic role in rheumatoid arthritis (RA). This study was undertaken to investigate the IL-23 inductive activity of the proinflammatory cytokine IL-17, $IL-1{\beta}$ and tumor necrosis factor (TNF-${\alpha}$) in RA synovial fluid mononuclear cells (SFMC). Expression of IL-23p19, IL-17, $IL-1{\beta}$ and TNF-${\alpha}$ in joint was examined by immunohistochemistry (IHC) of patients with RA and osteoarthritis (OA). The effects of IL-17 and $IL-1{\beta}$ on expression of IL-23p19 in human SFMC from RA patients were determined by reverse transcriptase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). IL-23p19 was expressed in the RA fibroblast like synoviocyte (FLS), but not from OA FLS. Similar to the protein expression, IL-23p19 mRNA could be detected by RT-PCR in RA SFMC. IL-17 and $IL-1{\beta}$ could induce RA SFMC to produce the IL-23p19. The effects of IL-17 were much stronger than $IL-1{\beta}$ or TNF-${\alpha}$. These responses were observed in a doseresponsive manner. In addition, IL-17 or $IL-1{\beta}$ neutralizing antibody down-regulated the expression of IL-23p19 induced by LPS in RA-SFMC. Our results demonstrate that IL-23p19 is overexpressed in RA synovium and IL-17 and $IL-1{\beta}$ appears to upregulate the expression of IL-23p19 in RA-SFMC.

Study on the Association of PSQI, IQ, BDI and DSOM in the Insomnia Patients(l) (불면환자의 수면의 질 척도, 우울척도, 한방진단시스템과의 연관성 연구(1))

  • Oh, Kyong-Min;Kim, Bo-Kyong
    • Journal of Oriental Neuropsychiatry
    • /
    • v.20 no.3
    • /
    • pp.89-119
    • /
    • 2009
  • Objectives : This study was to investigate the association of Pittsburgh Sleep Quality Index(PSQI), Insomnia Questionaire(IQ), Beck Depression Inventory(BDI) and Diagnos system of oriental medicine(DSOM) in the Insomnia Patients. Methods : For this study, we carried out PSQI, IQ, BDI and DSOM of 37 patients with insomnia who have come to Donguei oriental hospital of Donguei university from November 2008 to May 2009. And Using cross tabulation analysis, verified the association of PSQI, IQ, BDI and DSOM. Results : 1. The most Frequent Pathogenic Factor is blood-deficiency(血虛) in total patients. 2. The score of BDI has positive correlation with sc10 of deficiency of qi(氣虛), damp(濕), kdney(腎) in total patients. 3. The score of PSQI has positive correlation with zp of liver(肝) in total patients. 4. The score of PSQI has positive correlation with sc10 and zp of insufficiency of Yin(陰虛), and the score of BDI has positive correlation with sc10 of blood stasis(血瘀) and zp of liver(肝) in female patients. 5. The score of PSQI has positive correlation with sc10 of deficiency of qi(氣虛) and zp of heart(心), and the score of IQ has positive correlation with sc10 of liver(肝) in male patients. 6. The duration from onset in the group of 22-59years are longer than the group of 60-80 years and the duration of using hypnotics have positive correlation with total sleep time in 22-59years group. 7. The score of PSQI has positive correlation with zp of liver(肝) in 22-59years group. 8. The score of PSQI has positive correlation with the score of BDI in 60-80years group. 9. The score of BDI has positive correlation with sc10 of deficiency of qi(氣虛) and zp of blood-deficiency(血虛), and the score of IQ has positive correlation with zp of coldness(寒) in 60-80years group. 10. The score of IQ has positive correlation with sc10 and zp of dryness(燥) in below 6 Months Group. 11. The score of PSQI has positive correlation with the score of BDI in over 6 Months Group. 12. The score of PSQI has positive correlation with zp of liver(肝) in over 6 Months Group. 13. The score of IQ has positive correlation with sc10 of dryness(燥) in BDI 2nd Grade Group. 14. The score of BDI has positive correlation with sc10 of kidney(腎) and the age has positive correlation with zp of heart(心) in BDI 3rd Grade Group. 15. The age has positive correlation with sc10 of damp(濕) in BDI 4th Grade Group. Conclusions : This study provides insights into the complicated associations of the pattern of insomnia with depression and Diagnos system of oriental medicine. And especially this study showed apparent correlation between insomnia and depression in 60-80years group and over 6 months group.

  • PDF

A Study on Microbiological Critical Limit in Sterilization processing of Fried Kimchi Soup (볶음김치스프 제조공정중 살균공정에 대한 미생물학적 한계기준에 관한 연구)

  • Kwon, Sang-Chul
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.13 no.9
    • /
    • pp.4018-4024
    • /
    • 2012
  • The purpose of this study was to application in the HACCP(Hazard Analysis Critical control) system of fried kimchi soup. The establishment of Critical limit during sterilization processing was measured by sterilization temperature, sterilization time, sensory test, storage test and pH change in storage for 30 days (May 1~30, 2012). Before sterilization, general bacteria, coliform and thermophile bacteria were detected to be $6.00{\times}10^5\;CFU/m{\ell}$, $7.50{\times}10^2\;CFU/m{\ell}$ and $2.75{\times}10^2\;CFU/m{\ell}$, respectively. In contrast, all microbial was not detected after sterilization($90{\pm}5^{\circ}C$, $22{\pm}5$ mins). The sensory test was decided as the most delicious kimchi according to $90{\pm}5^{\circ}C$, $22{\pm}5min$. In conclusion, the sterilization process of fried kimchi soup would be a great alternative to prevention, decreasing and removing of harmful microorganism, such as general bacteria, coliform and thermoduric bacteria etc. Therefore, the critical limit of sterilization temperature and time for quality control and biosafety was established at $90{\pm}5^{\circ}C$, $22{\pm}5$ mins. And it suggested that HACCP plan was necessary for monitoring method, monitoring cycle, problem solving method, education, training and record management during sterilization processing.

Therapeutic Effects of Cheonggi-san Extract on NC/Nga Mice with Atopic Dermatitis-like Skin Lesions (청기산(淸肌散)이 아토피피부염 동물 모델에 미치는 영향)

  • Ku, Young-Hui;Hong, Seung-Ug
    • The Journal of Korean Medicine
    • /
    • v.29 no.1
    • /
    • pp.179-191
    • /
    • 2008
  • Background and Objectives : Atopic dermatitis is a recurrent or chronic eczematous skin disease with severe pruritus,and has increased in Korea. Although the pathogenic mechanisms of atopic dermatitis are yet unknown, recently skin barrier dysfunction and hyperresponsive Th2 cells in the acute phase have been reported as important mechanisms. Cheonggi-san(CGS) is used in oriental clinics for treatingacute skin lesions of eczema or urticaria. There have been no studies on the therapeutic mechanism of CGS for curing atopic dermatitis. We aimed to find out the therapeutic effects of its internaluse on atopic dermatitis-like skin lesions, induced in NC/Nga mice by the mite antigen D. pteronyssinus and disrupting skin barrier. Materials and Methods : The NC/Nga mice were classified into three groups: control group, atopic dermatitis elicitated group(AD), and CGS treated group (CT). Atopic dermatitis-like skin lesions were induced on the back of female NC/Nga mice, 12 weeks of age, by tape stripping, 5% SDS applied to disrupt skin barrier and painting 3 times a week with D. pteronyssinus crude extract solution for 3 weeks. CT was treated with CGS orally after atopic dermatitis was elicitated. We observed changes of skin damage, mast cells, substance P, angiogenesis, skin barrier, Th2 cell differentiation, nuclear factor-${\kappa}B(NF-{\kappa}B)$ p65 activation and COX-2 in NC/Nga mice with atopic dermatitis-like skin lesions. Results : The skin damages as eczema were seenin AD, but mitigated in CT. The degranulated mast cells in dermal papillae increased in AD, but decreased in CT. The substance P positive reacted cells in CT remarkably decreased. The angiogenesis increased in AD, but decreased in CT. The decrease of lipid deposition and ceramide in AD was seen, but anincrease of lipid deposition and ceramide in CT was seen. The distribution of IL-4 positive reacted cells in dermal papillae increased in AD, but decreased in CT. The distribution of NF-${\kappa}B$ p65 positive reacted cells & COX-2 positive reacted cells in CT decreased. Conclusion : The results may suggest that the CGS per os decreases the dysfunction of the skin barrier, inhibits Th2 cell differentiation and inhibits NF-${\kappa}B$ p65 activation in NC/Nga mice with atopic dermatitis-like skin lesions.

  • PDF

Sterilizing Effect of Plant Pathogenic Fungi using Ozone Microbubble (오존마이크로버블을 이용한 식물병원균 살균효과)

  • Kim, Chang Shoo;Yu, Sang Yeol;Lee, Gong In;Kim, Seung Han;Lee, Jong Won;Song, Jae Kwan
    • Journal of Bio-Environment Control
    • /
    • v.23 no.3
    • /
    • pp.250-255
    • /
    • 2014
  • Sterilization is an important factor in reprocessing of drained nutrient solution (RDN). To evaluate the suitability of ozone microbubble for RDN in protected horticulture and plant factory, strong fungicidal activity of ozone and microbubble were applied. This experiment was taken advantage of ozonated water (OW) and ozone gas (OG). The Fusarium oxysporum (FO), Phytophthora capsici (PC) and Colletotrichum gloeosporioides (CG) were treated with OW 0.5, 1.0 and 2.0 ppm and OG $3.0g{\cdot}h^{-1}$ for 0, 30, 60, 120 and 180 sec. Results of this experiment can be summed up as follows : In the OW, FO was sterilized by 0.5 ppm in 60 sec and PC was sterilized by 2.0 ppm in 30 sec. In the OG, FO and PC both of them were sterilized in 180 sec. However, CG was not sterilized using OW and OG. Overall, ozone microbubble showed possibility of sterilization in RDN. However, CG is required to more ozone concentration and processing time.

Angiogenic Inhibition Effects of Several Herbs Supplementing Qi and Blood (수종(數種) 보기보혈(補氣補血) 한약(韓藥)의 혈관신생(血管新生) 억제효과(抑制效果))

  • Lee, Jin-Wha;Kim, Han-Young;Kang, Hee;Yu, Young-Beob;Shim, Bum-Sang;Kim, Sung-Hoon;Choi, Seung-Hoon;Ahn, Kyoo-Seok
    • Journal of Korean Traditional Oncology
    • /
    • v.11 no.1
    • /
    • pp.105-118
    • /
    • 2006
  • Two of the essential processes required for metastasis are neoangiogenesis and tumor cell invasion of basement membranes (BM) and extracellular matrix (ECM). Recently, data showed that herbs removing blood stasis has an anti-angiogenic effects. Tonifying vital Qi and eliminating pathogenic factor was a basic modality in Oriental oncology. In this study, we investigated several Qi and Blood tonics for potent angiogenic inhibitors. Methanol extracts of samples inhibited the proliferation of ECV-304 at the concentration of 100 ${\mu}g/m{\ell}$. Zizyphi Fructus, Glycyrrhizae Radix, Angelicae Gigantis Radix decreased the gelatinolytic activity of MMP-9 from ECV-304, at the concentration of 100 ${\mu}g/m{\ell}$ in gelatin zymography. In in vitro invasion assay, herbs inhibited the invasion activity of ECV-304 by 53% of control (Ginseng Radix), 39% (Zizyphi Fructus), 36% (Angelicae Gigantis Radix), 25% (Glycyrrhizae Radix). Ginseng Radix inhibited the capillary-like tube formation of ECV-304 at the concentration of 160 ${\mu}g/m{\ell}$, Angelicae Gigantis Radix and Paeoniae Radix Alba inhibited at the concentration of 320 ${\mu}g/m{\ell}$. These results indicated that Ginseng Radix, Glycyrrhizae Radix, and Angelicae Gigantis Radix could be considered as potent angiogenic inhibitiors.

  • PDF

Association of KIR (Killer Cell Immunoglobulin-like Receptor) Genotype with Psoriasis in Korean Population (한국인에서 건선과 KIR (Killer Cell Immunoglobulin-like Receptor) 유전자형 사이의 연관성)

  • Choi, Eun-Jung;Choi, Hee-Baeg;Kim, Su-Yeon;Yoon, Ho-Yeul;Park, Min-Ji;Kim, Tae-Yoon;Kim, Tai-Gyu
    • IMMUNE NETWORK
    • /
    • v.5 no.3
    • /
    • pp.179-185
    • /
    • 2005
  • Background: Psoriasis is a multifactorial autoimmune skin disease with a pathogenesis that has remained obscure. Recently, T cells bearing natural killer receptors (NKRs) were precisely and strongly targeted as new putative pathogenic immunocytes in psoriasis. Among NKRs, killer cell immunoglobulin-like receptor (KIR) is the major molecule recognizing HLA class I allotypes and might be closely related to psoriasis. Methods: To investigate the association of KIR genotype and patients with psoriasis in Korean, we defined the 14 KIR genotypes in 96 patients with psoriasis and 86 healthy controls using PCR-SSP methods. Results: The frequencies of KIR2DS4 and KIR3DL1 were significantly decreased in psoriasis compared with controls (RR=0.21, p<0.02). When patients were divided into two subgroups at the age of onset, type I (<30 years) and type II ($({\geq}30$ years) respectively, these phenomena were similarly observed independent of groups divided (type I: RR=0.26, p<0.005; type II: RR=0.14, p<0.0006). When the patients were divided into subgroups according to the age of onset and family history, the frequencies of KIR2DS4, KIR3DL1, and KIR2DS3 were significantly decreased in type I compared with type II psoriasis (3DL1, 2DS4: p<0.004; 2DS3: p<0.04) and were significantly decreased in psoriasis without family history compared to with family history (3DL1, 2DS4: p<0.007; 2DS3: p<0.05). The frequency of haplotype combination BB was significantly increased in psoriasis compared with controls (RR=2.74, p<0.009). Conclusion: These results suggest that KIR genotype is a factor for the occurrence and development of psoriasis and in future how combinations of HLA and KIR genes influence psoriasis needs to be defined.

The Study on the History of Pugation therapy From -'Treatise on Febrile Diseases' to 'Longevity and Life Presservation In Oriental Medicine'- (하법(下法)의 발전 과정에 대한 연구(硏究) -상한론(傷寒論)에서 사상의학(四象醫學) 까지-)

  • Choi, Yei-Kwen;Kim, Kyung-Yo
    • The Journal of Internal Korean Medicine
    • /
    • v.19 no.1
    • /
    • pp.524-552
    • /
    • 1998
  • Purgation therapy has played an important role as a influential remedy from the begining of the Chinese medicine. Especially purgation therapy is raised as the effective remedy on the acute infectious disease in the book of 'Treatise on Febrile Disease'. But It was inclined to cold-nature and available only in the excess syndrome. Nevertheless it is evident that the book has showed an example of this therapy. During the middle age, purgation therapy is classified into several subtype; hydrogogue therapy, laxation with lubricants, purgation with cold-natured drugs and purgation with warm-natured drugs. Comparing with the ancient times, it must be a progression. It was investigated earnestly by a school leaded by Zhang Congzheng. They were not restricted to several diseases, but applied it to the wide range of diseases. They thought as following. 'One is ill from pathogenic factor so that you should eliminate it from the human body'. Hence, they frequently used three major remedies such as diaphoresis, emesis and purgation. In this process, purgation therapy had showed eye-opening progress. But opposition to it was not little. Li Gao was a representative man on the opposite side. He expressed a critical opinion and placed great importance on the genuine energy, the natural healing force. Under his influence, a large number of doctors evaded purgation and put it under taboo. On account of these trend, purgation therapy had took a backward step and retrograded. Therefore cathartics such as Rhei Radix et Rhizoma, Rharbitidis Semen, cold drugs such as Gypsum Fibrosum, etc. had been excluded for preservation of the genuine energy, and came about an obnoxious custom to value only 'tonity deficiency', or 'warm and tonify'. As it had came into fashion to approach most disease from the point of view, purgation therapy was merely fall into a remedy of constipation. After the eighteenth century purgation therapy encountered the new period of rivival. It was introduced by them who strived for the study of Epidemics to the new current of thought, so called '增水行舟'. It was because 온병 was apt to dissipate one's Yin fluid. Therefore purgation therapy of this period was characterized by establishing nourishment Yin and body fluid with or without use of timely purgation of accumulation of heat. From the time of Zhang Congzheng, it was accomplished by Lee Je-ma to the most epoch-making change. He caused an improvement in the use of purgation therapy by regarding innate constitutional contradiction as importance than representing clinical symptoms. He warned that existing remedies that depend only upon symptoms and signs, not upon individual characteristics including constitutional features didn't bring round to but kill them. And he understood all the pathologic processes in his constitutional theory, investigated specific drugs on four constitution, made indications of each prescriptions clear. For giving to differentiation of constition before differentiation of syndrom, his new slant on the pathologic phenomena overcome the limitations of 변증시치, and revaluate purgation therapy from remedy impaire the genuine energy to that restore it by recover the balance between the internal organ. It is the product of him to fundamentally upset the cause to be in disregard of purgation therapy.

  • PDF

A Study of the correlation between breeding density and the azimuth of cattle sheds affected calf diarrhea disease (송아지 설사에 영향을 미치는 사육밀도 및 축사 방위와의 상관관계에 관한 연구)

  • Lee, Yun-Lyul;Lee, Hak-Rim;Ahn, Jae-Bum;Song, Ji-Ye;Jang, Jae-Jin;Lee, Min-Jae
    • Korean Journal of Veterinary Service
    • /
    • v.30 no.1
    • /
    • pp.133-144
    • /
    • 2007
  • This study was conducted to determine the effective environmental control measures in preventing calf diarrheal disease in farms. It was found that the high numbers of calves in a cow house was directly related with the high incidence rate of diarrheal diseases. When the number of calves was increased in a cow house, it was difficult to reduce the diarrheal diseases of calves. It was revealed that the incidence rates of calf diarrheal disease were dramatically reduced when the delivery house which faced south. The periodical changes of bedding materials seemed beneficial good to control the possible resident infectious agents, including pathogenic viruses and bacteria. The control of the delivery time was important for reduction of calf diarrhea. It was revealed that September and October were the best time as the delivery period. In order to use old cow house as a delivery house, it should be sterilized by the disinfectant and the flame. When the diarrheal feces were removed as soon as possible, the transmission of diarrheal diseases among calves In the same house was reduced. When the diarrheal feces were not disposed, the incidence rate of diarrhea reached up to 50%. When the morbid calves were not quarantined, the incidence rate of diarrhea was 100%. In contrast, when the diseased calves were quarantined from other calves, the incidence rate of diarrhea was reduced, remarkably. The mean recovery time from the diarrhea of the treated calves in the southern cow house was much faster than that in the north cow house. The treatment of calves in a clean and well-ventilated cow house with dry bedding was more effective than that in a cold, wet, and dark house. It could be postulated that the most important environmental factor in the reduction of diarrheal diseases of calves is the blocking of the entry of the infectious agents. The complete sanitation and control of the delivery house in the using farm is more important than building a new cow house, for prevention of calf diarrheal diseases.

Sensing the Stress: the Role of the Stress-activated p38/Hog1 MAPK Signalling Pathway in Human Pathogenic Fungus Cryptococcus neoformans

  • Bahn, Yong-Sun;Heitman, Joseph
    • Proceedings of the Microbiological Society of Korea Conference
    • /
    • 2007.05a
    • /
    • pp.120-122
    • /
    • 2007
  • All living organisms use numerous signal-transduction pathways to sense and respond to their environments and thereby survive and proliferate in a range of biological niches. Molecular dissection of these signalling networks has increased our understanding of these communication processes and provides a platform for therapeutic intervention when these pathways malfunction in disease states, including infection. Owing to the expanding availability of sequenced genomes, a wealth of genetic and molecular tools and the conservation of signalling networks, members of the fungal kingdom serve as excellent model systems for more complex, multicellular organisms. Here, we employed Cryptococcus neoformans as a model system to understand how fungal-signalling circuits operate at the molecular level to sense and respond to a plethora of environmental stresses, including osmoticshock, UV, high temperature, oxidative stress and toxic drugs/metabolites. The stress-activated p38/Hog1 MAPK pathway is structurally conserved in many organisms as diverse as yeast and mammals, but its regulation is uniquely specialized in a majority of clinical Cryptococcus neoformans serotype A and D strains to control differentiation and virulence factor regulation. C. neoformans Hog1 MAPK is controlled by Pbs2 MAPK kinase (MAPKK). The Pbs2-Hog1 MAPK cascade is controlled by the fungal "two-component" system that is composed of a response regulator, Ssk1, and multiple sensor kinases, including two-component.like (Tco) 1 and Tco2. Tco1 and Tco2 play shared and distinct roles in stress responses and drug sensitivity through the Hog1 MAPK system. Furthermore, each sensor kinase mediates unique cellular functions for virulence and morphological differentiation. We also identified and characterized the Ssk2 MAPKKK upstream of the MAPKK Pbs2 and the MAPK Hog1 in C. neoformans. The SSK2 gene was identified as a potential component responsible for differential Hog1 regulation between the serotype D sibling f1 strains B3501 and B3502 through comparative analysis of their meiotic map with the meiotic segregation of Hog1-dependent sensitivity to the fungicide fludioxonil. Ssk2 is the only polymorphic component in the Hog1 MAPK module, including two coding sequence changes between the SSK2 alleles in B3501 and B3502 strains. To further support this finding, the SSK2 allele exchange completely swapped Hog1-related phenotypes between B3501 and B3502 strains. In the serotype A strain H99, disruption of the SSK2 gene dramatically enhanced capsule biosynthesis and mating efficiency, similar to pbs2 and hog1 mutations. Furthermore, ssk2, pbs2, and hog1 mutants are all hypersensitive to a variety of stresses and completely resistant to fludioxonil. Taken together, these findings indicate that Ssk2 is the critical interface protein connecting the two-component system and the Pbs2-Hog1 pathway in C. neoformans.

  • PDF