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Targeted Delivery of Therapeutics to the Brain for Neuropsychiatric Disorders
Targeted Delivery of Therapeutics to the Brain for Neuropsychiatric Disorders
Targeted Delivery of Therapeutics to the Brain for Neuropsychiatric Disorders

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105628
ISBN  
9798265428080
DDC  
001
저자명  
Yu, Brenda J.
서명/저자  
Targeted Delivery of Therapeutics to the Brain for Neuropsychiatric Disorders
발행사항  
[Sl] : Stanford University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
85 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Airan, Raag.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2025.
초록/해제  
요약Every few millimeters of brain tissue are anatomically and functionally distinct from one another, with clinically relevant differential expression of key drug targets, making for significant challenges in developing new pharmacotherapies for disorders of the nervous system. While many existent drugs have demonstrated efficacy for varied indications, issues such as potential toxicity, limited targeting efficiency, and the complexity of brain pathophysiology hinder effective treatment outcomes. In this dissertation, we present our work on 1) developing a novel noninvasive nanotechnology platform for the targeted delivery of small anesthetic compounds and 2) utilizing this technology to explore the electrophysiological and behavioral effects of ketamine in small animal models.In the first study, we employed solid phase microextraction, pharmacokinetic analysis, and histological assays to validate our novel drug delivery platform. By encapsulating ketamine within ultrasound-responsive drug nanocarriers, we achieved precise delivery of the compound to a targeted region of the brain upon activation with focused ultrasound. Our results demonstrated the efficacy and safety of this approach, providing evidence of ketamine localization at the site of delivery while minimizing systemic exposure within a small animal model. Additionally, we discuss the applications of this platform in understanding the effects of ropivacaine and other pharmacological compounds.We then leveraged the nascent technology in our second study to investigate whether the system could yield functionally significant bioeffects. Using pharmacokinetic, electrophysiological, and behavioral assays, we assessed the targeted effects of ketamine in a rodent model by delivering the compound to the medial prefrontal cortex (mPFC) and retrosplenial cortex (RsC)-two distinct brain regions known to mediate different functionally significant responses to ketamine. Our results provided evidence of ketamine's unique electrophysiological signatures recorded at each region and the corresponding unique behavioral effects. These findings further validated the precision of ultrasonic uncaging for localized drug delivery and provided insight into ketamine's regional specificity of response in the brain.Our work provides an essential tool to enhance our understanding of the mechanisms of anesthetic agents and ultimately, has the potential to inform the development of more effective treatment strategies for neuropsychiatric disorders.
일반주제명  
Software
일반주제명  
Acids
일반주제명  
Toxicity
일반주제명  
Antibodies
일반주제명  
Perfluorocarbons
일반주제명  
Water
일반주제명  
Heat
일반주제명  
Chromatography
일반주제명  
Drug dosages
일반주제명  
Ethanol
일반주제명  
Drug therapy
일반주제명  
Cavitation
일반주제명  
Blood-brain barrier
일반주제명  
Drug delivery systems
일반주제명  
Pharmaceuticals
일반주제명  
Solvents
일반주제명  
Pharmacokinetics
일반주제명  
Nervous system
일반주제명  
Deep brain stimulation
일반주제명  
Tissues
일반주제명  
Acoustics
일반주제명  
Neurosciences
일반주제명  
Pharmaceutical sciences
일반주제명  
Pharmacology
일반주제명  
Toxicology
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aYu,  Brenda  J.
■24510▼aTargeted  Delivery  of  Therapeutics  to  the  Brain  for  Neuropsychiatric  Disorders
■260    ▼a[Sl]▼bStanford  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a85  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Airan,  Raag.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2025.
■520    ▼aEvery  few  millimeters  of  brain  tissue  are  anatomically  and  functionally  distinct  from  one  another,  with  clinically  relevant  differential  expression  of  key  drug  targets,  making  for  significant  challenges  in  developing  new  pharmacotherapies  for  disorders  of  the  nervous  system.  While  many  existent  drugs  have  demonstrated  efficacy  for  varied  indications,  issues  such  as  potential  toxicity,  limited  targeting  efficiency,  and  the  complexity  of  brain  pathophysiology  hinder  effective  treatment  outcomes.  In  this  dissertation,  we  present  our  work  on  1)  developing  a  novel  noninvasive  nanotechnology  platform  for  the  targeted  delivery  of  small  anesthetic  compounds  and  2)  utilizing  this  technology  to  explore  the  electrophysiological  and  behavioral  effects  of  ketamine  in  small  animal  models.In  the  first  study,  we  employed  solid  phase  microextraction,  pharmacokinetic  analysis,  and  histological  assays  to  validate  our  novel  drug  delivery  platform.  By  encapsulating  ketamine  within  ultrasound-responsive  drug  nanocarriers,  we  achieved  precise  delivery  of  the  compound  to  a  targeted  region  of  the  brain  upon  activation  with  focused  ultrasound.  Our  results  demonstrated  the  efficacy  and  safety  of  this  approach,  providing  evidence  of  ketamine  localization  at  the  site  of  delivery  while  minimizing  systemic  exposure  within  a  small  animal  model.  Additionally,  we  discuss  the  applications  of  this  platform  in  understanding  the  effects  of  ropivacaine  and  other  pharmacological  compounds.We  then  leveraged  the  nascent  technology  in  our  second  study  to  investigate  whether  the  system  could  yield  functionally  significant  bioeffects.  Using  pharmacokinetic,  electrophysiological,  and  behavioral  assays,  we  assessed  the  targeted  effects  of  ketamine  in  a  rodent  model  by  delivering  the  compound  to  the  medial  prefrontal  cortex  (mPFC)  and  retrosplenial  cortex  (RsC)-two  distinct  brain  regions  known  to  mediate  different  functionally  significant  responses  to  ketamine.  Our  results  provided  evidence  of  ketamine's  unique  electrophysiological  signatures  recorded  at  each  region  and  the  corresponding  unique  behavioral  effects.  These  findings  further  validated  the  precision  of  ultrasonic  uncaging  for  localized  drug  delivery  and  provided  insight  into  ketamine's  regional  specificity  of  response  in  the  brain.Our  work  provides  an  essential  tool  to  enhance  our  understanding  of  the  mechanisms  of  anesthetic  agents  and  ultimately,  has  the  potential  to  inform  the  development  of  more  effective  treatment  strategies  for  neuropsychiatric  disorders.
■590    ▼aSchool  code:  0212.
■650  4▼aSoftware
■650  4▼aAcids
■650  4▼aToxicity
■650  4▼aAntibodies
■650  4▼aPerfluorocarbons
■650  4▼aWater
■650  4▼aHeat
■650  4▼aChromatography
■650  4▼aDrug  dosages
■650  4▼aEthanol
■650  4▼aDrug  therapy
■650  4▼aCavitation
■650  4▼aBlood-brain  barrier
■650  4▼aDrug  delivery  systems
■650  4▼aPharmaceuticals
■650  4▼aSolvents
■650  4▼aPharmacokinetics
■650  4▼aNervous  system
■650  4▼aDeep  brain  stimulation
■650  4▼aTissues
■650  4▼aAcoustics
■650  4▼aNeurosciences
■650  4▼aPharmaceutical  sciences
■650  4▼aPharmacology
■650  4▼aToxicology
■690    ▼a0986
■690    ▼a0317
■690    ▼a0572
■690    ▼a0419
■690    ▼a0383
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360847▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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