17 research outputs found

    The role of SMN in type III SMA mouse model

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    ν•™μœ„λ…Όλ¬Έ (석사) -- μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› : μžμ—°κ³Όν•™λŒ€ν•™ 생λͺ…κ³Όν•™λΆ€, 2021. 2. 곡영윀.μ‹ κ²½-근윑 μ ‘ν•© (neuromuscular junction, NMJ)λŠ” μš΄λ™μ‹ κ²½μ΄ κ·Όμ„¬μœ μ— 전기적 μ‹ ν˜Έλ₯Ό μ „λ‹¬ν•˜μ—¬ μˆ˜μΆ•ν•  수 있게 ν•˜λŠ” ꡬ쑰둜, μ‹ κ²½ λ§λ‹¨μ—μ„œ μ•„μ„Έν‹Έμ½œλ¦° 수용체(Acetylcholine receptor, AChR)둜 μ‹ κ²½μ „λ‹¬λ¬Όμ§ˆμ„ μ „λ‹¬ν•˜μ—¬ μ‹ ν˜Έλ₯Ό 보낸닀. ν›„λ°œμ„± μ²™μˆ˜μ„± κ·Όμœ„μΆ•μ¦(type III Spinal Muscular Atrophy, type III SMA)은 SMN(Survival of Motor Neuron)μ΄λΌλŠ” 원인 μœ μ „μžμ— λŒμ—°λ³€μ΄κ°€ 생겨 성인이 된 ν›„ λ°œλ³‘ν•˜λŠ” μœ μ „ μ§ˆν™˜μœΌλ‘œ, 점차적인 κ·Όκ°μ†Œμ¦μ΄ μΌμ–΄λ‚˜λŠ” μ§ˆλ³‘μ΄λ‹€. 신생아 λ•Œ λ°œλ³‘ν•˜λŠ” type I, II SMA의 κ²½μš°λŠ” 생쑴에 치λͺ…적이기 λ•Œλ¬Έμ—, 비ꡐ적 λ°œλ³‘ 기전에 λŒ€ν•˜μ—¬ 잘 λΆ„μ„λ˜μ–΄ 있고 μΉ˜λ£Œμ œλ„ κ°œλ°œλ˜μ–΄ μžˆλ‹€. ν•˜μ§€λ§Œ, type III SMAλŠ” μΌμƒμƒν™œμ— 문제λ₯Ό μΌμœΌν‚€λŠ” μ§ˆλ³‘μž„μ—λ„ λΆˆκ΅¬ν•˜κ³ , 원인 μœ μ „μžμ— λŒ€ν•΄μ„œλ§Œ λ°ν˜€μ Έ 있으며 μ‘°μ§μ΄λ‚˜ μž₯κΈ° λ‹¨μœ„μ—μ„œμ˜ μ§ˆλ³‘μ˜ λ°œλ³‘ 기전에 λŒ€ν•΄μ„œλŠ” 잘 μ•Œλ €μ Έ μžˆμ§€ μ•Šμ•„ λŒ€μ¦ 치료만이 μ§„ν–‰λ˜κ³  μžˆλ‹€. λ³Έ μ—°κ΅¬μ—μ„œλŠ” type III SMA의 λ°œλ³‘ 기전을 λ°ν˜€λ‚΄κΈ° μœ„ν•˜μ—¬ ν™˜μžμ™€ μœ μ „ν˜•μ΄ μœ μ‚¬ν•œ SMNC/C 마우슀λ₯Ό μ΄μš©ν•˜μ˜€λ‹€. SMNC/C 마우슀의 주령별 κΈ°λŠ₯적, ꡬ쑰적 뢄석을 ν†΅ν•˜μ—¬ AChR cluster dispersionμ΄λΌλŠ” μƒˆλ‘œμš΄ ν‘œν˜„ν˜•μ„ λ°œκ²¬ν•˜μ˜€μœΌλ©°, type III SMA의 λ°œλ³‘ 기전에 λŒ€ν•˜μ—¬ μƒˆλ‘œμš΄ 가섀을 μ œμ‹œν•˜μ˜€λ‹€. λ˜ν•œ, type III SMA의 ν‘œν˜„ν˜• νšŒλ³΅μ— λ³Έ μ—°κ΅¬μ—μ„œ 밝힌 λ§€μ»€λ‹ˆμ¦˜μ„ μ μš©ν•¨μœΌλ‘œμ¨ 이미 λ°œλ³‘ν•œ μ΄ν›„μ˜ 근골격계 μ§ˆλ³‘μ˜ μΉ˜λ£Œμ— λŒ€ν•œ μƒˆλ‘œμš΄ κ°€λŠ₯성을 μ œμ‹œν•  수 μžˆμ—ˆλ‹€.NMJ (Neuromuscular junction) is a structure composed of motor neuron axon terminal and Acetylcholine receptor (AChR) clusters of muscle fiber. Motor neurons transfer the electronic signals from the central nervous system to muscle fibers by releasing neurotransmitters like Acetylcholine (ACh). Type III Spinal Muscular Atrophy (type III SMA) is a genetic neuromuscular disease caused by a mutation in the SMN1 (Survival of Motor Neuron 1) gene. There has been extensive research and curative therapeutic suggestions about type I and II SMA which show severe symptoms since infants. Yet, the mechanism of type III SMA onset is poorly understood despite the fact that patients also suffer from progressive muscle weakness in adulthood. Symptomatic treatments are the only treatments available for type III SMA in the status quo. In this study, SMNC/C mouse, which has similar genotype with human patients, was used for the animal model for type III SMA. Functional and structural analysis of the NMJ with developmental stage showed Lower CMAP (Compound Muscle Action Potential), wider AChR cluster band, and arborization of motor neuron axons in SMNC/C mouse. Both SMN overexpression in the myofiber and subsequential NMJ remodeling were required for the rescue of the SMNC/C model phenotypes. Consequently, this study provided a novel histological phenotype of type III SMA mouse model and a suggestion for curative treatment of type III SMA.β… . ꡭ문초둝(Abstract in Korean) 1 β…‘. λͺ©μ°¨(Table of Contents) 3 β…’. μ„œλ¬Έ(Introduction) 5 β…£. μ‹€ν—˜μž¬λ£Œ 및 방법(Materials and Methods) 9 β…£-1. 마우슀(Mice) 9 β…£-2. 행동 μ‹€ν—˜(Behavior test) 9 β…£-3. λ©΄μ—­ν˜•κ΄‘μ—Όμƒ‰λ²•(Immunohistochemistry) 9 β…£-4. 근전도 μ‹€ν—˜(Electromyogram) 11 β…£-5. AAV μ •μ œ 및 μ£Όμž…(AAV purification and injection) 12 β…£-6. 근윑 손상(Muscle injury) 12 β…£-7. ν†΅κ³„μ²˜λ¦¬(Statistical Analysis) 13 β…€. κ²°κ³Ό(Results) 14 β…€-1. SMNC/C λ§ˆμš°μŠ€λŠ” type III SMA의 μ§ˆλ³‘ λͺ¨λΈλ‘œ μ‚¬μš©ν•  수 μžˆλ‹€. 14 β…€-2. SMNC/C λ§ˆμš°μŠ€λŠ” μš΄λ™μ‹ κ²½μ˜ κ΅¬μ‘°μ—λŠ” 이상이 μ—†μœΌλ‚˜ μ‹ κ²½-근윑 κΈ°λŠ₯이 κ°μ†Œν•˜μ˜€λ‹€. 17 β…€-3. SMNC/C 마우슀의 μ•„μ„Έν‹Έμ½œλ¦° 수용체 ꡰ집은 μ•Όμƒν˜• λ§ˆμš°μŠ€λ³΄λ‹€ λ„“κ²Œ 뢄포해 μžˆλ‹€. 20 β…€-4. μš΄λ™μ‹ κ²½μ—μ„œμ˜ SMN κ³Όλ°œν˜„μ€ SMNC/C 마우슀의 ν‘œν˜„ν˜•μ„ νšŒλ³΅μ‹œν‚€μ§€ λͺ»ν•œλ‹€. 23 β…€-5. κ·Όμ„¬μœ μ—μ„œμ˜ SMN κ³Όλ°œν˜„μ€ SMNC/C 마우슀의 ν‘œν˜„ν˜•μ„ νšŒλ³΅μ‹œν‚¬ 수 μžˆλ‹€. 26 β…₯. κ³ μ°°(Discussion) 29 β…¦. μ°Έκ³ λ¬Έν—Œ(References) 32 β…§. 영문초둝(Abstract in English) 36Maste

    온라인 ꡐ윑 이용자의 정보 ν”„λΌμ΄λ²„μ‹œ 인식과 μ˜μ‚¬κ²°μ • 과정에 κ΄€ν•œ 연ꡬ

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    ν•™μœ„λ…Όλ¬Έ(석사) -- μ„œμšΈλŒ€ν•™κ΅λŒ€ν•™μ› : κ³΅κ³ΌλŒ€ν•™ ν˜‘λ™κ³Όμ • κΈ°μˆ κ²½μ˜Β·κ²½μ œΒ·μ •μ±…μ „κ³΅, 2023. 8. 황쀀석.Online education is a type of distance education, which enables education anytime, anywhere. With the development of digital technology and other more advanced technologies such as artificial intelligence and learning analytics, gathering and analyzing data in the education sector is growing. However, not many studies have investigated privacy issues in the context of education. Therefore, in this study, the educational service users perception of privacy and their according behavior will be investigated in an effort to analyze the privacy issues in the educational field. The main theories are privacy paradox, and privacy calculus. The privacy paradox explains a situation where individuals decide to give away their information even though they are concerned about disclosing their information. Privacy calculus theory is one of the theories that explain this paradoxical phenomenon, where individuals economically and rationally compare the benefit and risk of disclosing information before deciding what to do. Survey and Structural Equation Modeling (SEM) were conducted for analysis and the hypothesis testing result showed that there are privacy concern, and privacy paradox in the education sector also, with privacy calculus theory explaining why individuals decide to reveal their information.온라인 κ΅μœ‘μ€ 원격 ꡐ윑의 ν•œ μ’…λ₯˜λ‘œ μ–Έμ œ μ–΄λ””μ„œλ‚˜ ꡐ윑이 κ°€λŠ₯ν•˜κ²Œ ν•œλ‹€. 그런 와쀑에 디지털 기술과 인곡 지λŠ₯, ν•™μŠ΅ 뢄석 λ“± 보닀 λ°œμ „λœ 기술의 λ°œλ‹¬λ‘œ ꡐ윑 λΆ„μ•Όμ˜ 데이터 μˆ˜μ§‘ 및 뢄석이 μ¦κ°€ν•˜κ³  μžˆλ‹€. κ·ΈλŸ¬λ‚˜ ꡐ윑 λΆ„μ•Όμ—μ„œ ν”„λΌμ΄λ²„μ‹œ 문제λ₯Ό μ‘°μ‚¬ν•œ μ—°κ΅¬λŠ” λ§Žμ§€ μ•Šμ•„, λ³Έ μ—°κ΅¬μ—μ„œλŠ” ꡐ윑 ν˜„μž₯의 ν”„λΌμ΄λ²„μ‹œ 문제λ₯Ό λΆ„μ„ν•˜κ³ μž ν•˜μ˜€λ‹€. κ·Έ μ€‘μ—μ„œλ„ 특히 ꡐ윑 μ„œλΉ„μŠ€ 이용자의 ν”„λΌμ΄λ²„μ‹œμ— λŒ€ν•œ 인식과 그에 λ”°λ₯Έ 행동을 μ‘°μ‚¬ν•˜μ˜€λ‹€. λ³Έ μ—°κ΅¬μ—μ„œ μ‚¬μš©λœ μ£Όμš” 이둠은 ν”„λΌμ΄λ²„μ‹œ μ—­μ„€κ³Ό ν”„λΌμ΄λ²„μ‹œ 계산이둠이닀. ν”„λΌμ΄λ²„μ‹œ 역섀은 개인이 μžμ‹ μ˜ 정보λ₯Ό κ³΅κ°œν•˜λŠ” 것에 λŒ€ν•΄ μš°λ €ν•˜λ©΄μ„œλ„ μžμ‹ μ˜ 정보λ₯Ό κ³΅κ°œν•˜κΈ°λ‘œ κ²°μ •ν•˜λŠ” 상황을 μ„€λͺ…ν•œλ‹€. ν”„λΌμ΄λ²„μ‹œ 계산이둠은 μ΄λŸ¬ν•œ 역섀적 ν˜„μƒμ„ μ„€λͺ…ν•˜λŠ” 이둠 쀑 ν•˜λ‚˜λ‘œ, 개인이 무엇을 ν•΄μ•Ό 할지 κ²°μ •ν•˜κΈ° 전에 정보λ₯Ό κ³΅κ°œν•˜λŠ” 것에 λŒ€ν•œ 이읡과 μœ„ν—˜μ„ 경제적, ν•©λ¦¬μ μœΌλ‘œ λΉ„κ΅ν•˜λŠ” 이둠이닀. 뢄석을 μœ„ν•΄ 섀문쑰사와 ꡬ쑰방정식 λͺ¨ν˜•(SEM)을 μ‹€μ‹œν•˜μ˜€μœΌλ©°, κ°€μ„€ κ²€μ • κ²°κ³Ό ꡐ윑 λΆ€λ¬Έμ—μ„œλ„ ν”„λΌμ΄λ²„μ‹œ μ—Όλ €κ°€ 있으며, ν”„λΌμ΄λ²„μ‹œ 역섀이 μ‘΄μž¬ν•˜λŠ” κ²ƒμœΌλ‘œ λ‚˜νƒ€λ‚¬μœΌλ©°, μ΄μ€‘μ—μ„œ ν”„λΌμ΄λ²„μ‹œ 계산이둠은 개인이 μžμ‹ μ˜ 정보λ₯Ό κ³΅κ°œν•˜κΈ°λ‘œ κ²°μ •ν•˜λŠ” 이유λ₯Ό μ„€λͺ…ν•œλ‹€.Abstract iii Contents v List of Tables vii List of Figures viii Chapter 1. Introduction 1 Chapter 2. Literature Review 4 2.1 Online education 4 2.1.1 The concept of online education 4 2.1.2 Data collection and utilization in online education 6 2.1.3 Privacy issues in the context of online education 8 2.2 Privacy calculus theory 10 2.2.1 The Concept of privacy calculus theory 10 2.2.2 Previous studies of privacy paradox 11 2.3 Trust on institution 12 2.3.1 The concept of trust 12 Chapter 3. Research Model 13 3.1 Research Model 13 3.2 Variables and Hypothesis 13 3.2.1 Operational definition of Variables 14 3.2.2 Hypotheses of this research 14 3.3 Research Methodology 15 Chapter 4. Empirical Analysis 17 4.1 Survey and data collection 17 4.2 Reliability and Validity Tests 18 4.3 Confirmatory Factor Analysis 19 4.4 Structural Equation Modeling and Hypotheses test 21 Chapter 5. Conclusion 23 5.1 Summary of research 23 5.2 Implications 24 5.2.1 Academic Implications 24 5.2.2 Practical Implications 24 5.3 Limitations and Future research 25 Bibliography 26 Appendix 1: Survey sheet 30 Abstract (Korean) 45석

    Effect of texture on the deformation behavior of Ti and Mg alloys

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    Docto

    황산적거미(Pirata subpiraticus)와 ν„±κ±°λ―Έ(Pachygnatha clerki)의 경쟁 및 λ…Όμƒνƒœκ³„ λ‚΄ 곡간뢄포

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    ν•™μœ„λ…Όλ¬Έ(석사)--μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :농생물학과 곀좩학전곡,2000.Maste
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