본문

서브메뉴

Neural and Inflammatory Mechanisms of Response to Electroconvulsive Therapy in Treatment-Resistant Major Depression- [electronic resource]
Neural and Inflammatory Mechanisms of Response to Electroconvulsive Therapy in Treatment-Resistant Major Depression- [electronic resource]

상세정보

자료유형  
 학위논문
Control Number  
0016934623
International Standard Book Number  
9798380081788
Dewey Decimal Classification Number  
616
Main Entry-Personal Name  
Hough, Christina Mae.
Publication, Distribution, etc. (Imprint  
[S.l.] : University of California, Los Angeles., 2023
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2023
Physical Description  
1 online resource(116 p.)
General Note  
Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
General Note  
Advisor: Craske, Michelle G.
Dissertation Note  
Thesis (Ph.D.)--University of California, Los Angeles, 2023.
Restrictions on Access Note  
This item must not be sold to any third party vendors.
Summary, Etc.  
요약Approximately 40% of individuals seeking treatment for depression can be classified as having "treatment-resistant depression" (TRD), only 15% of whom will reach remission using a standard antidepressant. Electroconvulsive therapy (ECT) has lower drop-out and boasts remission rates over 60% within TRD. Despite this, little is known about the mechanisms of ECT's clinical effects. Increased understanding of this may improve our ability to treat this highly prevalent, debilitating and intractable disease. Using longitudinal, multimodal data, the present studies explored neural and inflammatory mechanisms of ECT and its clinical efficacy. At pre-treatment (T1), 24 hours after their second ECT index (T2), and post-treatment (T3), TRD subjects (n=44) underwent magnetic resonance imaging, blood draws and clinical assessment. Clinical outcomes included post-treatment status as a Responder/Non-responder (≥50% reduction in global depression severity) and (exploratorily, in n=28) percent change in depressive symptom domains (affective, cognitive and vegetative).Study 1 examined ECT effects on volume/thickness in corticolimbic regions of interest (ROIs) in the brain, and their relationship with clinical outcomes. Following ECT, there were increases in the bilateral hippocampus, amygdala, striatum, anterior cingulate and insula, and left dorsolateral prefrontal cortex (DLPFC) and dorsomedial prefrontal cortex (DMPFC). These increases did not predict overall Response but did predict improvement in specific symptom domains. Larger DLPFC and DMPFC increases predicted greater improvement in affective symptoms; DLPFC increases also predicted cognitive symptom improvement.Study 2 assessed ECT effects on plasma inflammatory markers (CRP, IL-6 and TNF-α), and their changes in relation to clinical outcomes. Levels of CRP and IL-6 significantly increased at T2 relative to pre-treatment, and decreased from T2 to post-treatment. Neither early (%T2-T1) nor total (%T1-T3) changes in inflammation predicted clinical outcomes, however, post-treatment inflammation did moderate an association between early/acute inflammatory response and clinical outcomes. Larger early increases in IL-6 predicted greater reductions in both affective and cognitive symptom severity, in subjects with relatively higher post-treatment IL-6; though non-significant, the opposite relationship was seen in those with lower post-treatment IL-6. This same association was detected for CRP and reductions in neurovegetative symptoms.Finally, Study 3 assessed relationships between changes in inflammation and ROI volume/thickness, to test a mechanistic model of clinical response to ECT, in which increases in brain volume/thickness mediate the relationship between acute inflammatory response to ECT and clinical outcomes, conditioned by post-treatment inflammation levels. No evidence was found to support this hypothesis, however, as early inflammation changes were not associated with post-treatment changes in ROI volume/thickness.These findings support previous reports of ECT-induced increases in volume/thickness of brain regions putatively associated with depression, and that initial ECT administration is associated with a sharp increase in inflammation that decreases by end-of-treatment. These results also provide evidence of an association between such biological changes and clinical effects of ECT. Inconsistent literature on this topic may be at least partially due to frequent use of clinical outcomes that measure global, rather than symptom-specific, changes in symptoms. Additionally, these results indicate that, when examining peripheral mechanisms involved in ECT's clinical effects, it may be important to consider the interaction between acute and long-term changes in such processes, rather than only the change between two data points. Lastly, no relationships were detected between changes in inflammation and changes in ROI volume/thickness. This may indicate that these processes exist independently, with distinct effects on clinical outcomes.
Subject Added Entry-Topical Term  
Psychobiology.
Subject Added Entry-Topical Term  
Psychology.
Subject Added Entry-Topical Term  
Neurosciences.
Subject Added Entry-Topical Term  
Immunology.
Index Term-Uncontrolled  
Depression
Index Term-Uncontrolled  
Electroconvulsive therapy
Index Term-Uncontrolled  
Inflammation
Index Term-Uncontrolled  
Magnetic resonance imaging
Index Term-Uncontrolled  
Psychoneuroimmunology
Index Term-Uncontrolled  
Treatment response
Added Entry-Corporate Name  
University of California, Los Angeles Psychology 0780
Host Item Entry  
Dissertations Abstracts International. 85-02B.
Host Item Entry  
Dissertation Abstract International
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:639869

MARC

 008240219s2023        ulk                      00        kor
■001000016934623
■00520240214101634
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798380081788
■035    ▼a(MiAaPQ)AAI30631513
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a616
■1001  ▼aHough,  Christina  Mae.
■24510▼aNeural  and  Inflammatory  Mechanisms  of  Response  to  Electroconvulsive  Therapy  in  Treatment-Resistant  Major  Depression▼h[electronic  resource]
■260    ▼a[S.l.]▼bUniversity  of  California,  Los  Angeles.  ▼c2023
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2023
■300    ▼a1  online  resource(116  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-02,  Section:  B.
■500    ▼aAdvisor:  Craske,  Michelle  G.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Los  Angeles,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aApproximately  40%  of  individuals  seeking  treatment  for  depression  can  be  classified  as  having  "treatment-resistant  depression"  (TRD),  only  15%  of  whom  will  reach  remission  using  a  standard  antidepressant.  Electroconvulsive  therapy  (ECT)  has  lower  drop-out  and  boasts  remission  rates  over  60%  within  TRD.  Despite  this,  little  is  known  about  the  mechanisms  of  ECT's  clinical  effects.  Increased  understanding  of  this  may  improve  our  ability  to  treat  this  highly  prevalent,  debilitating  and  intractable  disease.  Using  longitudinal,  multimodal  data,  the  present  studies  explored  neural  and  inflammatory  mechanisms  of  ECT  and  its  clinical  efficacy.  At  pre-treatment  (T1),  24  hours  after  their  second  ECT  index  (T2),  and  post-treatment  (T3),  TRD  subjects  (n=44)  underwent  magnetic  resonance  imaging,  blood  draws  and  clinical  assessment.  Clinical  outcomes  included  post-treatment  status  as  a  Responder/Non-responder  (≥50%  reduction  in  global  depression  severity)  and  (exploratorily,  in  n=28)  percent  change  in  depressive  symptom  domains  (affective,  cognitive  and  vegetative).Study  1  examined  ECT  effects  on  volume/thickness  in  corticolimbic  regions  of  interest  (ROIs)  in  the  brain,  and  their  relationship  with  clinical  outcomes.  Following  ECT,  there  were  increases  in  the  bilateral  hippocampus,  amygdala,  striatum,  anterior  cingulate  and  insula,  and  left  dorsolateral  prefrontal  cortex  (DLPFC)  and  dorsomedial  prefrontal  cortex  (DMPFC).  These  increases  did  not  predict  overall  Response  but  did  predict  improvement  in  specific  symptom  domains.  Larger  DLPFC  and  DMPFC  increases  predicted  greater  improvement  in  affective  symptoms;  DLPFC  increases  also  predicted  cognitive  symptom  improvement.Study  2  assessed  ECT  effects  on  plasma  inflammatory  markers  (CRP,  IL-6  and  TNF-α),  and  their  changes  in  relation  to  clinical  outcomes.  Levels  of  CRP  and  IL-6  significantly  increased  at  T2  relative  to  pre-treatment,  and  decreased  from  T2  to  post-treatment.  Neither  early  (%T2-T1)  nor  total  (%T1-T3)  changes  in  inflammation  predicted  clinical  outcomes,  however,  post-treatment  inflammation  did  moderate  an  association  between  early/acute  inflammatory  response  and  clinical  outcomes.  Larger  early  increases  in  IL-6  predicted  greater  reductions  in  both  affective  and  cognitive  symptom  severity,  in  subjects  with  relatively  higher  post-treatment  IL-6;  though  non-significant,  the  opposite  relationship  was  seen  in  those  with  lower  post-treatment  IL-6.  This  same  association  was  detected  for  CRP  and  reductions  in  neurovegetative  symptoms.Finally,  Study  3  assessed  relationships  between  changes  in  inflammation  and  ROI  volume/thickness,  to  test  a  mechanistic  model  of  clinical  response  to  ECT,  in  which  increases  in  brain  volume/thickness  mediate  the  relationship  between  acute  inflammatory  response  to  ECT  and  clinical  outcomes,  conditioned  by  post-treatment  inflammation  levels.  No  evidence  was  found  to  support  this  hypothesis,  however,  as  early  inflammation  changes  were  not  associated  with  post-treatment  changes  in  ROI  volume/thickness.These  findings  support  previous  reports  of  ECT-induced  increases  in  volume/thickness  of  brain  regions  putatively  associated  with  depression,  and  that  initial  ECT  administration  is  associated  with  a  sharp  increase  in  inflammation  that  decreases  by  end-of-treatment.  These  results  also  provide  evidence  of  an  association  between  such  biological  changes  and  clinical  effects  of  ECT.  Inconsistent  literature  on  this  topic  may  be  at  least  partially  due  to  frequent  use  of  clinical  outcomes  that  measure  global,  rather  than  symptom-specific,  changes  in  symptoms.  Additionally,  these  results  indicate  that,  when  examining  peripheral  mechanisms  involved  in  ECT's  clinical  effects,  it  may  be  important  to  consider  the  interaction  between  acute  and  long-term  changes  in  such  processes,  rather  than  only  the  change  between  two  data  points.  Lastly,  no  relationships  were  detected  between  changes  in  inflammation  and  changes  in  ROI  volume/thickness.  This  may  indicate  that  these  processes  exist  independently,  with  distinct  effects  on  clinical  outcomes.
■590    ▼aSchool  code:  0031.
■650  4▼aPsychobiology.
■650  4▼aPsychology.
■650  4▼aNeurosciences.
■650  4▼aImmunology.
■653    ▼aDepression
■653    ▼aElectroconvulsive  therapy
■653    ▼aInflammation
■653    ▼aMagnetic  resonance  imaging
■653    ▼aPsychoneuroimmunology
■653    ▼aTreatment  response
■690    ▼a0349
■690    ▼a0621
■690    ▼a0317
■690    ▼a0982
■71020▼aUniversity  of  California,  Los  Angeles▼bPsychology  0780.
■7730  ▼tDissertations  Abstracts  International▼g85-02B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0031
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16934623▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    New Books MORE
    Related books MORE
    최근 3년간 통계입니다.

    ค้นหาข้อมูลรายละเอียด

    • จองห้องพัก
    • 캠퍼스간 도서대출
    • 서가에 없는 책 신고
    • โฟลเดอร์ของฉัน
    วัสดุ
    Reg No. Call No. ตำแหน่งที่ตั้ง สถานะ ยืมข้อมูล
    TQ0025798 T   원문자료 열람가능/출력가능 열람가능/출력가능
    마이폴더 부재도서신고

    * จองมีอยู่ในหนังสือยืม เพื่อให้การสำรองที่นั่งคลิกที่ปุ่มจองห้องพัก

    해당 도서를 다른 이용자가 함께 대출한 도서

    Related books

    Related Popular Books

    도서위치