6 research outputs found

    Evaluation of molecular technologies by using RNA for tuberculosis diagnosis

    No full text
    ์ž„์ƒ๋ณ‘๋ฆฌํ•™๊ณผ/์„์‚ฌ๊ฒฐํ•ต๊ท ์˜ ๊ฒ€์ถœ์„ ์œ„ํ•ด ์‚ฌ์šฉ๋˜๋Š” ์„ธ๊ท ํ•™์  ๊ฒ€์‚ฌ๋ฒ•์€ ์˜ค๋žœ ์‹œ๊ฐ„์ด ์†Œ์š”๋˜๊ณ  ๋ฏผ๊ฐ๋„์™€ ํŠน์ด๋„์˜ ํ•œ๊ณ„๊ฐ€ ์žˆ์–ด ์ตœ๊ทผ PCR์„ ์ด์šฉํ•œ ํ•ต์‚ฐ์ฆํญ๋ฒ•์ด ๊ฒฐํ•ต๊ฒ€์‚ฌ์— ๋งŽ์ด ์ด์šฉ๋˜๊ณ  ์žˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ํ˜„์žฌ๊นŒ์ง€ ์‚ฌ์šฉ๋˜๊ณ  ์žˆ๋Š” ๊ฒฐํ•ต๊ฒ€์‚ฌ์šฉ ํ•ต์‚ฐ์ฆํญ๋ฒ•์€ ๋Œ€๋ถ€๋ถ„ DNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•˜๊ณ  ์žˆ๋‹ค. ๊ทธ๋Ÿฐ๋ฐ ๊ฐ™์€ ์ˆ˜์˜ ์„ธํฌ์ผ ๊ฒฝ์šฐ ํŠน์ • ์œ ์ „์ž์˜ DNA๋ณด๋‹ค RNA๊ฐ€ ๋” ๋งŽ์€ ์ˆ˜๋กœ ์กด์žฌํ•œ๋‹ค. ๋”ฐ๋ผ์„œ RNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•˜๋Š” ํ•ต์‚ฐ์ฆํญ๋ฒ•์˜ ๋ฏผ๊ฐ๋„๊ฐ€ ๋” ๋†’์„ ์ˆ˜ ์žˆ๋‹ค. ๋˜ํ•œ DNA ๋ณต์ œ๊ณผ์ •์„ ์‘์šฉํ•˜์—ฌ ๊ฐœ๋ฐœ๋œ PCR๋ณด๋‹ค ์ „์‚ฌ๋œ RNA๋กœ๋ถ€ํ„ฐ DNA๋ฅผ ํ•ฉ์„ฑํ•˜๊ณ  ํ•ฉ์„ฑ๋œ DNA๋กœ๋ถ€ํ„ฐ ๋งŽ์€ ์–‘์˜ RNA๋ฅผ ๋‹ค์‹œ ์ „์‚ฌํ•˜๋Š” nucleic acid sequence-based amplification (NASBA)์„ ์ด์šฉํ•œ๋‹ค๋ฉด ๊ฒฐํ•ต๊ฒ€์‚ฌ์˜ ๋ฏผ๊ฐ๋„๋ฅผ ๋” ๋†’์ผ ์ˆ˜ ์žˆ์„ ๊ฒƒ์ด๋‹ค. ์ด์— ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” Mycobacterium bovis BCG์—์„œ ์ถ”์ถœํ•œ DNA์™€ RNA๋ฅผ ์ด์šฉํ•˜์—ฌ PCR, RT-PCR, real-time RT-PCR, real-time NASBA๋ฅผ ์ˆ˜ํ–‰ํ•˜์—ฌ DNA ๋ฐ RNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•œ ๊ฒฐํ•ต๊ฒ€์‚ฌ๋ฒ•์˜ ๋ฏผ๊ฐ๋„๋ฅผ ๋น„๊ตํ•˜๋Š” ํ•œํŽธ, PCR ๋ฐ NASBA๋ฅผ ์ด์šฉํ•œ ๊ฒฐํ•ต๊ฒ€์‚ฌ๋ฒ•์˜ ๋ฏผ๊ฐ๋„๋ฅผ ๋น„๊ตํ•˜์˜€๋‹ค. ๊ทธ ๊ฒฐ๊ณผ, 16S rRNA ์œ ์ „์ž๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•œ PCR์˜ ๋ฏผ๊ฐ๋„๋Š” 10 3 cfu/ใŽ– ๋ฐ 100 pg์ด์—ˆ๊ณ , 16S rRNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•œ RT-PCR์˜ ๋ฏผ๊ฐ๋„๋Š” 10 2 cfu/ใŽ– ๋ฐ 10 pg๋กœ ๋‚˜ํƒ€๋‚˜ DNA๋ณด๋‹ค RNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•œ ๊ฒฐํ•ต๊ฒ€์‚ฌ๋ฒ•์ด ๋” ๋ฏผ๊ฐํ•˜์˜€๋‹ค. ๋˜ํ•œ rpoB mRNA์™€ 16S rRNA๋ฅผ ๊ฐ๊ฐ ํ‘œ์ ์œผ๋กœ ํ•˜์—ฌ RT-PCR์„ ์ˆ˜ํ–‰ํ•œ ๊ฒฐ๊ณผ, rpoB mRNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•˜์˜€์„ ๋•Œ์˜ ๋ฏผ๊ฐ๋„๊ฐ€ 10 5 cfu/ใŽ–์ธ ๋ฐ˜๋ฉด 16S rRNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•œ RT-PCR์˜ ๋ฏผ๊ฐ๋„๊ฐ€ 10 2 cfu/ใŽ–๋กœ ๋‚˜ํƒ€๋‚˜ RNA์˜ ํ‘œ์ ์— ๋”ฐ๋ผ ๋ฏผ๊ฐ๋„๊ฐ€ ๋‹ฌ๋ผ์ง์„ ์•Œ ์ˆ˜ ์žˆ์—ˆ๋‹ค. ์ด์–ด 16S rRNA๋ฅผ ํ‘œ์ ์œผ๋กœ ํ•œ RT-PCR๊ณผ ํ˜•๊ด‘ ํ‘œ์ง€ probe๋ฅผ ์ด์šฉํ•œ real-time RT-PCR ๋ฐ real-time NASBA๋ฅผ ์ˆ˜ํ–‰ํ•˜์—ฌ ํ•ต์‚ฐ์ฆํญ๋ฒ•์— ๋”ฐ๋ฅธ ๋ฏผ๊ฐ๋„๋ฅผ ๋น„๊ตํ•œ ๊ฒฐ๊ณผ, real-time RT-PCR์—์„œ 10 fg๊ณผ real-time NASBA 1 fg์˜ ๋ฏผ๊ฐ๋„๋ฅผ ํ™•์ธํ•˜์˜€๋‹ค. ๋”ฐ๋ผ์„œ RNA๋ฅผ ํ‘œ์ ์œผ๋กœ real-time RT-PCR, real- time NASBA ๋“ฑ์„ ์ด์šฉํ•˜์—ฌ ๊ฒฐํ•ต๊ท ์„ ๊ฒ€์ถœํ•  ๊ฒฝ์šฐ ๋ณด๋‹ค ๋ฏผ๊ฐํ•œ ๊ฒฐํ•ต๊ฒ€์‚ฌ๊ฐ€ ๊ฐ€๋Šฅํ•  ๊ฒƒ์œผ๋กœ ์‚ฌ๋ฃŒ๋œ๋‹ค.ope

    ๋งŒ์„ฑ ๋น„๋ถ€๋น„๋™์—ผ์ด ๋™๋ฐ˜๋œ ๋น„์šฉ์—์„œ์˜ ํ˜ธ์‚ฐ๊ตฌ ์นจ์œค ์ •๋„์— ๋”ฐ๋ฅธ ์กฐ์งํ•™์  ํŠน์„ฑ

    No full text
    ํ•™์œ„๋…ผ๋ฌธ(์„์‚ฌ)--์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :์˜ํ•™๊ณผ ์ด๋น„์ธํ›„๊ณผํ•™์ „๊ณต,2006.Maste

    ํ˜ธ์‚ฐ๊ตฌ์„ฑ ๋น„๋ถ€๋น„๋™์—ผ์˜ ๋น„์šฉ ํ˜•์„ฑ์—์„œ interleukin-17A์˜ ์—ญํ• 

    No full text
    ํ•™์œ„๋…ผ๋ฌธ (๋ฐ•์‚ฌ)-- ์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› : ์˜ํ•™๊ณผ ๋ฉด์—ญํ•™์ „๊ณต, 2015. 8. ์ด์žฌ์„œ.Background: Nasal polyposis associated with chronic rhinosinusitis (CRS) is a chronic inflammatory disease which is characterized by infiltration of many inflammatory cells. Meanwhile, interleukin (IL)-17A is a well-known proinflammatory cytokine which induces both eosinophilic and neutrophilic inflammation. We investigated the role of IL-17A in the development of nasal polyps in the CRS murine model. Materials & Methods: Eosinophilic CRS with nasal polyps was induced by using ovalbumin (OVA) and Staphylococcus aureus enterotoxin B (SEB) in wild-type BALB/c and IL-17A knock-out (KO) mice. Histopathologic changes of the sinonasal cavity were evaluated using hematoxylin and eosin, Periodic acid-Schiff, Sirius red, Massonโ€™s trichrome and immunohistochemistry. The levels of cytokines in splenocyte supernatants and total and OVA-specific IgEs in sera were measured using enzyme-linked immunosorbent assay. The expression levels of cytokines in the nasal mucosa were assessed by quantitative real-time polymerase chain reaction. Results: Under the IL-17A deficiency, cytokines (IL-4, IL-5 and interferon-ฮณ) in splenocyte supernatants as well as total and OVA-specific IgEs in sera were reduced significantly. Infiltration of both eosinophils and neutrophils into the nasal mucosa, subepithelial fibrosis and goblet cell count also decreased significantly in IL-17A KO mice treated with both OVA and SEB compared with those in the wild-type counterpart. However, there were no significant differences in either numbers or sizes of polypoid lesions among groups. Meanwhile, IL-4 increased and interferon-ฮณ decreased in the nasal mucosa in IL-17A KO mice treated with both OVA and SEB. Conclusions: This study suggests that even though IL-17A plays an important role in both local inflammation and remodeling of the nasal mucosa in CRS, it cannot entirely account for the development of nasal polyps.Abstract ----------------------------------------------- i Contents --------------------------------------------- iv List of Tables ----------------------------------------- v List of Figures ---------------------------------------- vi List of Abbreviations --------------------------------- viii Introduction ------------------------------------------- 1 Materials and Methods -------------------------------- 3 Results ---------------------------------------------- 10 Discussion ------------------------------------------ 14 References ------------------------------------------ 21 Tables ---------------------------------------------- 28 Figures ---------------------------------------------- 29 Abstract (Korean) ------------------------------------ 40Docto

    An Exploration on the Historic Relics and Cultural of Greece

    No full text
    corecore