6 research outputs found

    μ‹œν‚΄μ‚°(shikimic acid)의 λͺ¨λ°œ μ„±μž₯ 촉진 효과

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    ν•™μœ„λ…Όλ¬Έ(박사)--μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :μ˜κ³ΌλŒ€ν•™ μ˜ν•™κ³Ό,2020. 2. κΆŒμ˜€μƒ.Shikimic acid (SA) has recently been found to be a major component of plant stem cells. The exact effects of SA on human hair follicles (HFs) is unknown. The purpose of this study was to examine the effects of SA on hair growth. We investigated the effect of SA on an in vivo C57BL/6 mouse model. We examined the expression of mannose receptor (MR), which is a known receptor of SA, in human HFs and the effect of SA on human dermal papilla cells (hDPCs), outer root sheath cells (hORSCs), and on ex vivo human hair organ culture. SA significantly prolonged anagen hair growth in the in vivo mouse model. We confirmed expression of the MR in human HFs, and that SA increased the proliferation of hDPCs and hORSCs. It was found that SA enhanced hair shaft elongation in an ex vivo human hair organ culture. SA treatment of hDPCs led to increased c-myc, hepatocyte growth factor, keratinocyte growth factor and vascular endothelial growth factor levels and upregulation of p38 MAPK and cAMP response element-binding protein levels. Our results show that SA promotes hair growth and may serve as a new therapeutic agent in the treatment of alopecia.μ‹œν‚΄μ‚°(Shikimic acid)은 μ‹λ¬ΌμΆ”μΆœλ¬Όμ˜ μ„±λΆ„μœΌλ‘œμ„œ, ν•­μ‚°ν™”, 항염증 νš¨κ³Όκ°€ μ•Œλ €μ Έ 있고, ν•­λ°”μ΄λŸ¬μŠ€μ œ (Oseltamivir)의 μ›λ£Œλ‘œ μ“°μ΄λ©΄μ„œ μ£Όλͺ©μ„ λ°›κ²Œ λ˜μ—ˆλ‹€. 특히 μ‹œν‚΄μ‚°μ€ μ΅œκ·Όμ— μ‹λ¬Όμ˜ 쀄기세포 μΆ”μΆœλ¬Ό μ„±λΆ„μœΌλ‘œ μ•Œλ €μ Έ, 이λ₯Ό μ΄μš©ν•˜μ—¬ μ„±μ²΄μ˜ λΆ„ν™”λœ 세포λ₯Ό λ§žμΆ€ν˜• 만λŠ₯쀄기세포λ₯Ό μœ λ„ν•˜λŠ” 방법이 νŠΉν—ˆλ‘œ λ“±λ‘λœ λ°” μžˆλ‹€. λ”°λΌμ„œ μ΄λŸ¬ν•œ νŠΉμ„±μ΄ λͺ¨λ‚­μ˜ μž¬μƒλŠ₯λ ₯에 영ν–₯을 쀄 수 μžˆμ„ 것이라 μƒκ°λ˜λ‚˜ μ•„μ§κΉŒμ§€ 발λͺ¨νš¨κ³Όμ— λŒ€ν•œ 뢀뢄은 잘 μ•Œλ €μ Έ μžˆμ§€ μ•Šλ‹€. λ”°λΌμ„œ 이 μ—°κ΅¬λŠ” 인체λͺ¨λ‚­μ˜ μ‘°μ§λ°°μ–‘μ‘°κ±΄μ—μ„œ μ‹œν‚΄μ‚°μ˜ λͺ¨λ°œ μ„±μž₯ 효과λ₯Ό 밝히고, 기전을 규λͺ…ν•¨μœΌλ‘œμ¨ νƒˆλͺ¨μ˜ μƒˆλ‘œμš΄ μΉ˜λ£Œλ°©μ•ˆμ„ μ œμ‹œν•˜κ³ μž ν•˜μ˜€λ‹€. 마우슀λ₯Ό μ΄μš©ν•œ λ™λ¬Όμ‹€ν—˜μ—μ„œ μ‹œν‚΄μ‚°μ΄ λͺ¨λ°œμ˜ μ„±μž₯을 μ΄‰μ§„μ‹œν‚€κ³  λͺ¨λ°œμ£ΌκΈ°μ—μ„œ μ„±μž₯κΈ° μ‹œκΈ°μ˜ λͺ¨λ‚­μ„ μœ λ„ν•˜λŠ” 것을 κ΄€μ°°ν•˜μ˜€λ‹€. μ‹œν‚΄μ‚°μ˜ 수용체둜 μ•Œλ €μ§„ λ§Œλ…ΈμŠ€ μˆ˜μš©μ²΄κ°€ 인체 λͺ¨λ‚­μ—μ„œ λ°œν˜„ν•˜λŠ” 것을 ν™•μΈν•˜μ˜€κ³ , λͺ¨μœ λ‘μ„Έν¬μ™€ μ™Έλͺ¨κ·Όμ΄ˆμ„Έν¬μ— μ‹œν‚΄μ‚°μ„ μ²˜λ¦¬ν•˜μ˜€μ„ λ•Œ 세포증식을 μ΄‰μ§„μ‹œμΌ°λ‹€. λͺ¨λ‚­κΈ°κ΄€ λ°°μ–‘κ²°κ³Ό, μ‹œν‚΄μ‚°μ„ μ²˜λ¦¬ν•œ ꡰ이 λŒ€μ‘°κ΅°μ— λΉ„ν•΄ λͺ¨λ‚­μ˜ 길이가 μœ μ˜ν•˜κ²Œ μ¦κ°€ν•œ 것을 κ΄€μ°°ν•˜μ˜€κ³ , μ„Έν¬μ¦μ‹μ˜ ν‘œμ§€μžλ‘œ μ•Œλ €μ§„ Ki-67 ν•­μ²΄λ‘œ μ—Όμƒ‰ν•œ κ²°κ³Ό μ‹œν‚΄μ‚°μ„ μ²˜λ¦¬ν•œ κ΅°μ—μ„œ λͺ¨λ‚­μ˜ 세포증식이 μœ μ˜ν•˜κ²Œ μ¦κ°€ν•˜λŠ” 것을 ν™•μΈν•˜μ˜€λ‹€. λ˜ν•œ μ‹œν‚΄μ‚°μ€ λͺ¨λ°œμ„±μž₯을 μ΄‰μ§„μ‹œν‚€λŠ” μΈμžλ“€λ‘œ μ•Œλ €μ§„ c-myc, hepatocyte growth factor (HGF), keratinocyte growth factor (KGF), vascular endothelial growth factor (VEGF)의 mRNA λ°œν˜„μ„ μ¦κ°€μ‹œμΌ°λ‹€. μ‹œν‚΄μ‚°μ„ μ²˜λ¦¬ν•˜λ©΄ 세포증식을 μ΄‰μ§„ν•˜λŠ” μœ μ „μžμΈ p38κ³Ό cAMP response element-binding protein (CREB)의 λ‹¨λ°±μ§ˆ λ°œν˜„μ΄ μ¦κ°€ν•˜λŠ” 것을 λ°œκ²¬ν•˜μ˜€λ‹€. λ³Έ μ—°κ΅¬μ—μ„œλŠ”, μ„Έν¬μ‹€ν—˜κ³Ό λ™λ¬Όμ‹€ν—˜μ„ 톡해 μ‹œν‚΄μ‚°μ΄ λͺ¨λ°œ μ„±μž₯을 μ΄‰μ§„μ‹œν‚€λŠ” 역할을 ν•  수 μžˆλ‹€λŠ” 것을 λ°ν˜”κ³ , 이λ₯Ό 톡해 μ‹œν‚΄μ‚°μ΄ νƒˆλͺ¨μ¦ μΉ˜λ£Œμ— μ‘μš©λ  수 μžˆλŠ” κ°€λŠ₯성을 μ œμ‹œν•˜κ³  μžˆλ‹€.ABSTRACT 1 LIST OF TABLE 3 LIST OF FIGURES 4 ABBREVIATIONS 5 INTRODUCTION 6 MATERIALS AND METHODS 8 RESULTS 14 DISCUSSION 26 REFERENCES 30 ABSTRACT IN KOREAN 34Docto

    Clinical effects of low level light therapy on skin sensitivity

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    ν•™μœ„λ…Όλ¬Έ (석사)-- μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› : μ˜ν•™κ³Ό ν”ΌλΆ€κ³Όν•™ 전곡, 2011.8. μ‘°κ΄‘ν˜„.Maste

    Rhodium catalyzed cycloaddition of enynes

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    Thesis(master`s)--μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :ν™”ν•™λΆ€ 무기화학전곡,2006.Maste

    κΈ€λ ˆμ΄μ§•μ²˜λ¦¬ν•œ λ„μž¬μ™€ μ—°λ§ˆν•œ λ„μž¬μ˜ ν‘œλ©΄μ‘°λ„μ— κ΄€ν•œ 연ꡬ

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    ν•™μœ„λ…Όλ¬Έ(석사)--μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :μΉ˜μ˜ν•™κ³Ό μΉ˜κ³Όλ³΄μ² ν•™μ „κ³΅,1998.Maste

    A STUDY ON THE SURFACE ROUGHNESS OF GLAZED PORCELAIN AND POLISHED PORCELAIN

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    Porcelain is considered to be one of the materials of choice for restoration where esthetics is of concern. But porcelain surface without final glazing treatment may induce undesirable results such as inflammatory response on adjacent soft tissues due to plaque accumulation and increased wear of opposing teeth. Therefore, rough porcelain surface must be smoothened by final glazing treatment or chairside polishing procedure. The purpose of this study was to compare the surface roughness among self-glazed, overglazed and polished porcelain with various polishing kit, and to detect which phase of polishing is optimal in clinic. Specimens were fabricated with Vita VMK porcelain. The surface treatment of each group was performed as follows. Group 1 : overglazing treatment Group 2 : self-glazing treatment Group 3 : polishing with the Truluster Polishing System for Porcelain(Brasseler, U.S.A.) Group 4 : polishing with the Exa Cerapol Adjustment kit (Edenta dental products, Switzerland) followed by finishing with diamond-filled polishing paste Group 5 : polishing with the Shofu Porcelain Adjustment kit (Shofu inc., Japan) followed by finishing with diamond-filled polishing paste. At each polishing steps, the measurement of Ra and Rq values were performed, and the surface was examined by scanning electron microscope. The results were as follows : 1. Overglazing treatment brought smoother surface than self-glazing treatment. 2. Polishing systems without porcelain polishing paste did not make better result than self-glazing treatment. 3. Polishing system with porcelain polishing paste made similar result to overglazing treatment. 4. Applying diamond-filled polishing paste after using polishing system which has no porcelain polishing paste produced surface as smooth as overglazing treatment does
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