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외상 후 스트레스 장애의 이해에 있어서 유전학 및 뇌영상 연구의 기여
Contribution of Genetic and Neuroimaging Studies towards a Better Understanding of Post-Traumatic Stress Disorder 원문보기

생물정신의학 = Korean journal of biological psychiatry, v.17 no.4, 2010년, pp.177 - 193  

김지은 (서울대학교 의과대학 정신과학교실) ,  류인균 (서울대학교 의과대학 정신과학교실) ,  전찬수 (서울대학교 의과대학 정신과학교실) ,  이유상 (용인정신병원)

Abstract AI-Helper 아이콘AI-Helper

Significant advances have been made in understanding the biological underpinnings of post-traumatic stress disorder(PTSD), particularly in the field of genetics and neuroimaging. Association studies in candidate genes related with hypothalamic-pituitary-adrenal axis, monoamines including serotonin, ...

주제어

AI 본문요약
AI-Helper 아이콘 AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

문제 정의

  • 또한 인간 뇌의 신경회로 및 각 영역의 기능에 대한 지식을 확장시키는데 PTSD에 대한 연구가 기여하고 있다. 여기에서는 이제까지의 PTSD 연구를 유전학과 뇌영상의 두 분야로 나누어 체계적으로 정리하고 현재까지의 연구가 가진 한계 및 향후 PTSD 연구의 미래에 대해 간략히 언급하고자 한다.

가설 설정

  • 15) 무기질 코르티코이드 수용체의 활성화는 신경 세포를 보호하는 특성을 가지는 반면, 당질 코르티코이드 수용체의 활성화는 중추신경계의 위험 신호에 대한 반응과 연관되어 있다.16) 상반되는 작용을 하는 2개의 수용체는 해마에 많이 존재한다. 해마는 시상하부-뇌하수체-부신축에 대한 전반적인 억제적 영향을 미치는데, 무기질 코르티코이드 수용체와 당질 코르티코이드 수용체가 협응하며 적절히 기능해야 스트레스에 대한 적절한 반응이 이루어진다.
  • 20-22) 그러나 N363S와 BclI gene의 다형 현상이, 외상 경험을 하였지만 PTSD 증상을 보이지 않았던 베트남전 참전 퇴역 군인 집단을 비교해 봤을 때, PTSD 집단에서 더 흔하게 나타나지는 않았고 다만 PTSD 환자 중 BclI GG 유전형(genotype) 집단이 피부 혈관 수축 평가에서 더 민감하고 PTSD 증상이 더 심하며 기저 혈청 코티졸 수준이 더 낮은 것으로 보고되었다.23) 당질 코르티코이드 수용체의 다형 현상이 PTSD의 발병 취약성과 연관이 있는지에 대한 충분한 증거는 아직 없다.
본문요약 정보가 도움이 되었나요?

질의응답

핵심어 질문 논문에서 추출한 답변
외상 후 스트레스 장애의 다른 이름은? 외상 후 스트레스 장애(post-traumatic stress disorder, 이하 PTSD)는“irritable heart”, traumatic neurosis,“shell shock”,“operational fatigue” 등으로 불렸고 이는 PTSD에 대한 이해의 역사를 반영한다. 정신 분석적 접근 및 외상 자체에 대한 관심이 높았던 시대가 있었다.
편도체 기저외측핵의 노르아드레날린 농도는 언제 상승하는가? 편도체 기저외측핵은 청반으로부터 고밀도의 노르아드레날린 신경지배를 받으며32) 기저외측핵의 노르아드레날린 농도는 스트레스 상황에서 상승한다.33)34) 청반의 신경 세포는 스트레스 상황에서 활성화되어35) 기저외측핵의 노르아드레날린 신경 전달을 조절한다.
Brain-derived neurotrophic factor와 우울증 관련 연구 결과는? 71) 여러 가지 질환과의 연관 가능성이 제기되고 있어 우울증, 정신분열병, 강박증, 알츠하이머 치매 등에서 BDNF 유전자와의 관련성 연구가 많이 진행되었다. 우울증 및 불안장애 관련해서는 항우울제를 처방받은 적이 없는 우울증 환자에서 우울증의 정도가 심할수록 BDNF 농도가 낮은 것으로 관찰되었고 항우울제 투약 후 증상이 호전되면서 BDNF 농도도 같이 상승하며 스트레스가 있으면 BDNF 농도가 감소하는 것으로 보고되었다.72)
질의응답 정보가 도움이 되었나요?

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