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NTIS 바로가기생명과학회지 = Journal of life science, v.23 no.6 = no.158, 2013년, pp.812 - 824
고준 (부산대학교 생명자원과학대학 바이오소재과학과) , 최선일 (부산대학교 생명자원과학대학 바이오소재과학과) , 김지은 (부산대학교 생명자원과학대학 바이오소재과학과) , 이영주 (부산대학교 생명자원과학대학 바이오소재과학과) , 곽문화 (부산대학교 생명자원과학대학 바이오소재과학과) , 고은경 (부산대학교 생명자원과학대학 바이오소재과학과) , 송성화 (부산대학교 생명자원과학대학 바이오소재과학과) , 성지은 (부산대학교 생명자원과학대학 바이오소재과학과) , 황대연 (부산대학교 생명자원과학대학 바이오소재과학과)
Reserpine, an anti-hypertensive drug, is able to positively modulate several phenotypes associated with
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
Alzheimer’s Disease란? | Alzheimer’s Disease (AD)는 인지기능의 저하와 행동장애 등의 임상적 특징을 나타내는 신경퇴행성 질환이다[19]. AD 환자의 뇌에는 비정상 단백질의 축적이 발견되어, 주로 학습이나 기억 능력과 관계있는 해마 부위에서 노인성 반점 (senile plaques)과 tau 단백질의 과인산화된 응집체 (hyperphosphorylated aggregates) 형태로 존재한다[2, 5, 52, 55]. | |
amyloid beta (Aβ) peptide는 어떻게 만들어 집니까? | AD 환자의 뇌에는 비정상 단백질의 축적이 발견되어, 주로 학습이나 기억 능력과 관계있는 해마 부위에서 노인성 반점 (senile plaques)과 tau 단백질의 과인산화된 응집체 (hyperphosphorylated aggregates) 형태로 존재한다[2, 5, 52, 55]. 이러한 질병의 원인이 되는 amyloid beta (Aβ) peptide는 amyloid precursor protein (APP)이 β-secretase와 γ-secretase의 연속적인 절단에 의해 Aβ-40와 Aβ-42로 생성된다[9]. 정상 뉴런에서는 APP가 α-secretase에 의해 절단되며, 생성된 Aβ는 뉴런이 과도하게 전기적으로 흥분되었을 때, 억제적 되먹임(negative feedback)을 통하여 시냅스의 기능이 항상성을 유지하도록 작용하지만[27], AD가 진행되는 과정에서는 항상성이 유지되지 못하고, Aβ-42 peptide가 비정상적으로 과생산되어 반점(plaque)을 형성하여 조직에 축적된다[11]. | |
Alzheimer’s Disease의 원인이 되는 펩타이드는 무엇입니까? | AD 환자의 뇌에는 비정상 단백질의 축적이 발견되어, 주로 학습이나 기억 능력과 관계있는 해마 부위에서 노인성 반점 (senile plaques)과 tau 단백질의 과인산화된 응집체 (hyperphosphorylated aggregates) 형태로 존재한다[2, 5, 52, 55]. 이러한 질병의 원인이 되는 amyloid beta (Aβ) peptide는 amyloid precursor protein (APP)이 β-secretase와 γ-secretase의 연속적인 절단에 의해 Aβ-40와 Aβ-42로 생성된다[9]. 정상 뉴런에서는 APP가 α-secretase에 의해 절단되며, 생성된 Aβ는 뉴런이 과도하게 전기적으로 흥분되었을 때, 억제적 되먹임(negative feedback)을 통하여 시냅스의 기능이 항상성을 유지하도록 작용하지만[27], AD가 진행되는 과정에서는 항상성이 유지되지 못하고, Aβ-42 peptide가 비정상적으로 과생산되어 반점(plaque)을 형성하여 조직에 축적된다[11]. |
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