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NTIS 바로가기수면·정신생리 = Sleep medicine and psychophysiology, v.20 no.2, 2013년, pp.63 - 68
김해인 (고려대학교 의과대학 정신건강의학교실) , 소수정 (고려대학교 의과대학 정신건강의학교실) , 양희정 (고려대학교 의과대학 정신건강의학교실) , 송현미 (고려대학교 의과대학 정신건강의학교실) , 문정호 (고려대학교 의과대학 정신건강의학교실) , 윤호경 (고려대학교 의과대학 정신건강의학교실) , 강승걸 (가천대학교 의과대학 정신건강의학교실) , 박영민 (인제대학교 의과대학 정신건강의학교실) , 이승환 (인제대학교 의과대학 정신건강의학교실) , 김린 (고려대학교 의과대학 정신건강의학교실) , 이헌정 (고려대학교 의과대학 정신건강의학교실)
Objectives: Several evidence has been suggested that the circadian gene variants contribute to the pathogenesis of seasonal affective disorder. In this study, we aimed to investigate the polymorphism in RORA (Retinoid-related orphan receptor A) gene in relation to seasonal variations among healthy y...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
위상 이동 가설이란 무엇인가? | 계절성 기분 장애의 발생 기전에 대해 여러 가설들이 제기되었지만, 그 중에서도 일주기 리듬(cir-cadian rhythm)이 계절성 기분 장애 연구의 중심이 되었다. Lewy 등은 겨울에 외부의 시간 혹은 수면-각성 주기의 변화에 상대적으로 내부의 일주기 리듬이 위상 지연되면서 계절성 우울증이 발생한다는 계절성 기분 장애의 ‘위상 이동 가설(Phase shift hypothesis)’를 제안하였다(Lewy 등 1988). | |
시교차상핵의 분자 기전은 무엇인가? | 내부의 일주기 리듬은 시상하부(hypothalamus)에 위치한 시교차상핵(Suprachiasmatic nucleus, SCN)에 의해 조절된다. SCN의 분자 기전(molecular mechanism)은 전사-번역 되먹임 회로(transcriptional-translational feedback loop)로 이루어져 있고 이 회로의 네트워크에 따라 시간 유전자들(clock genes)이 약 24시간의 주기로 표현된다(Takahashi 등 2008). 전사 인자(transcription factor)인 CLOCK과 NPAS2가 ARNTL과 복합체를 형성하여 Period(PER) 유전자와 Cryptochrome(CRY) 유전자의 전사를 활성화한다. | |
계절성 기분 장애란 무엇인가? | 계절성 기분 장애(seasonal affective disorder, SAD)는 Rosenthal 등이 1984년에 처음 기술한 것으로 특징적으로 가을 혹은 겨울에 우울증이 발생하고 봄 혹은 여름에 자연스럽게 호전되며 식욕의 증가, 과수면, 현저한 피로감이 특징이다(Rosenthal 등 1984). 계절성 기분 장애의 발생 기전에 대해 여러 가설들이 제기되었지만, 그 중에서도 일주기 리듬(cir-cadian rhythm)이 계절성 기분 장애 연구의 중심이 되었다. |
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