Measurement of ART Drug Concentrations in Brain by 19F-MRS as an Indicator of Neurotoxicity
通过 19F-MRS 测量脑内 ART 药物浓度作为神经毒性指标
基本信息
- 批准号:9925549
- 负责人:
- 金额:$ 19.69万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2019
- 资助国家:美国
- 起止时间:2019-09-24 至 2021-07-31
- 项目状态:已结题
- 来源:
- 关键词:AddressAdverse eventAgingAnimalsBiological AgingBiological AssayBiomedical ResearchBloodBlood - brain barrier anatomyBrainCD4 Positive T LymphocytesCerebrospinal FluidCerebrumCognition DisordersCommunitiesComplexDataDetectionDevelopmentDiseaseDoseEtiologyExploratory/Developmental GrantFluorineFluoxetineFluvoxamineFutureGeneral PopulationGiftsHIVHIV antiretroviralHeadHealthHumanIn VitroInflammationInjuryIntegrase InhibitorsInvestigationInvestmentsLeadMagnetic Resonance SpectroscopyMeasurementMeasuresMethodsMitochondriaMood DisordersMoodsN-acetylaspartateNational Institute of Mental HealthNational NeuroAids Tissue ConsortiumNeuraxisNeurobehavioral ManifestationsNeurocognitiveNeuronal InjuryNeuropharmacologyParticipantPerformancePermeabilityPersonsPharmaceutical PreparationsPharmacologyPrevalenceProtonsPublicationsPublishingRNARecoveryReportingResearchResearch Project GrantsRiskRisk FactorsSafetySample SizeSelective Serotonin Reuptake InhibitorSeveritiesSignal TransductionSleepSymptomsTissuesUnited States National Institutes of HealthViralWorkantiretroviral therapybrain researchbrain tissuecohortdaily functioningefavirenzemtricitabinefallsimprovedin vivoinnovationlow and middle-income countrieslymph nodesneurobehavioralneuropsychiatryneurotoxicitynew technologyprogramspublic health relevanceradioligandside effecttool
项目摘要
ABSTRACT
Antiretroviral therapy (ART) can suppress HIV RNA and improve survival but concerns about the
neurotoxicity of ART drugs have arisen in recent years with the publication of reports of a) in vitro evidence of
neuronal injury and b) neuropsychiatric adverse events (NP-AEs) of efavirenz, dolutegravir (DTG), and other
drugs. A key gap in our understanding of the efficacy and safety of ART drugs in the CNS is the pharmacology
of these drugs in the brain. Published human studies have reported that concentrations of most ART drugs are
substantially lower in cerebrospinal fluid (CSF) than in blood but recent animal studies have reported that ART
drug concentrations in the brain are substantially higher than expected by on CSF data. High ART drug
concentrations in the brain could be a critical determinant of neurotoxicity risk. To better understand the influence
of ART drug concentrations on NP-AEs, a new method is needed to measure these concentrations in the brain
of living humans. This R21 application proposes highly innovative research to develop such a method, fluorine
magnetic resonance spectroscopy (19F-MRS). This method can measure low concentration compounds, like
fluorinated drugs, that fall within the 19F-MRS spectra in vivo. This could be highly valuable since many commonly
used ART drugs, such as DTG and emtricitabine (FTC), are fluorinated. This method does not require
administration of a radioligand and has successfully measured concentrations of fluorinated selective serotonin
reuptake inhibitors in the past. The proposed research responds well to RFA-MH-20-115 and is organized into
3 aims: 1) Develop the 19F-MRS method to measure concentrations of DTG and FTC in the brain, 2) Measure
DTG and FTC by 19F-MRS in 20 participants of the CHARTER Aging project (R01 MH107345), which will
leverage NIMH’s investment in this cohort, and 3) Determine the relationships between DTG and FTC
concentrations in brain tissue and assessments of neurocognitive performance, mood, sleep, and daily
functioning, which are being performed by the CHARTER Aging project. While the proposed sample size is small,
the findings will provide proof-of-principle and preliminary data in support of future projects. The successful
project will develop a new and highly impactful tool for research on ART neuropharmacology and neurotoxicity
and will lead to new, larger research projects. It may also be useful in development of new ART drugs. This
method can also be used to measure ART drugs concentrations in tissues other than brain (e.g., lymph nodes)
so its development could also lead to new research on HIV persistence and eradication.
摘要
抗逆转录病毒疗法(ART)可以抑制HIV RNA,提高生存率,但对HIV感染的担忧是,
近年来,随着以下报告的发表,ART药物的神经毒性已经出现:a)体外证据表明,
神经元损伤和B)依法韦仑、度鲁特韦(DTG)和其他
我们对ART药物在CNS中的有效性和安全性的理解的一个关键差距是药理学
已发表的人体研究报告称,大多数ART药物的浓度是
脑脊髓液(CSF)中的含量远低于血液中的含量,但最近的动物研究报告称,ART
脑中的药物浓度显著高于CSF数据的预期。
脑中的浓度可能是神经毒性风险的关键决定因素。
由于ART药物浓度对NP-AEs的影响,需要一种新的方法来测量脑中的这些浓度
这项R21的应用提出了高度创新的研究,以开发这样一种方法,氟
磁共振波谱(19 F-MRS)。这种方法可以测量低浓度的化合物,如
这可能是非常有价值的,因为许多常见的氟药物,
使用的ART药物,如DTG和恩曲他滨(FTC),是氟化的。
并且已经成功地测量了氟化选择性5-羟色胺的浓度
建议的研究对RFA-10 MH-1020 - 10115反应良好,并组织成
3个目的:1)建立19 F-MRS测定脑内DTG和FTC浓度的方法,2)测定脑内DTG和FTC浓度,
在CHARTER老化项目(R 01 MH 107345)的20名参与者中通过19 F-MRS进行DTG和FTC,该项目将
利用NIMH在这一群体中的投资,以及3)确定DTG和FTC之间的关系
脑组织中的浓度和神经认知表现、情绪、睡眠和日常生活的评估
功能,这是正在进行的CHARTER老化项目。虽然拟议的样本量很小,
研究结果将为未来的项目提供理论依据和初步数据。成功的
该项目将开发一种新的、高度影响力的工具,用于ART神经药理学和神经毒性的研究
并将导致新的,更大的研究项目。它也可能有助于开发新的ART药物。这
该方法也可用于测量除脑以外的组织中的ART药物浓度(例如, 淋巴结)
因此,它的发展也可能导致对艾滋病毒持久性和根除的新研究。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Scott L Letendre其他文献
Neurocognitive effects of HCV, methamphetamine abuse, and HIV: multiple risks and mechanisms
- DOI:
10.1186/1744-859x-7-s1-s39 - 发表时间:
2008-04-17 - 期刊:
- 影响因子:3.100
- 作者:
Scott L Letendre - 通讯作者:
Scott L Letendre
Scott L Letendre的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Scott L Letendre', 18)}}的其他基金
Aging, Polypharmacy and Neurotoxicity in Adults Living with HIV
成人艾滋病毒感染者的衰老、多药治疗和神经毒性
- 批准号:
10577736 - 财政年份:2020
- 资助金额:
$ 19.69万 - 项目类别:
Aging, Polypharmacy and Neurotoxicity in Adults Living with HIV
成人艾滋病毒感染者的衰老、多药治疗和神经毒性
- 批准号:
10374038 - 财政年份:2020
- 资助金额:
$ 19.69万 - 项目类别:
Aging, Polypharmacy and Neurotoxicity in Adults Living with HIV
成人艾滋病毒感染者的衰老、多药治疗和神经毒性
- 批准号:
10013739 - 财政年份:2020
- 资助金额:
$ 19.69万 - 项目类别:
Measurement of ART Drug Concentrations in Brain by 19F-MRS as an Indicator of Neurotoxicity
通过 19F-MRS 测量脑内 ART 药物浓度作为神经毒性指标
- 批准号:
10023281 - 财政年份:2019
- 资助金额:
$ 19.69万 - 项目类别:
Sustained Training in Aging and HIV Research (STAHR)
老龄化和艾滋病毒研究持续培训(STAHR)
- 批准号:
10483564 - 财政年份:2016
- 资助金额:
$ 19.69万 - 项目类别:
Sustained Training in Aging and HIV Research (STAHR)
老龄化和艾滋病毒研究持续培训(STAHR)
- 批准号:
10615240 - 财政年份:2016
- 资助金额:
$ 19.69万 - 项目类别:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
以患者为导向的神经艾滋病研究中职业生涯调查员奖
- 批准号:
8466639 - 财政年份:2012
- 资助金额:
$ 19.69万 - 项目类别:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
以患者为导向的神经艾滋病研究中职业生涯调查员奖
- 批准号:
8774931 - 财政年份:2012
- 资助金额:
$ 19.69万 - 项目类别:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
以患者为导向的神经艾滋病研究中职业生涯调查员奖
- 批准号:
8594262 - 财政年份:2012
- 资助金额:
$ 19.69万 - 项目类别:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
以患者为导向的神经艾滋病研究中职业生涯调查员奖
- 批准号:
8968863 - 财政年份:2012
- 资助金额:
$ 19.69万 - 项目类别:
相似海外基金
Planar culture of gastrointestinal stem cells for screening pharmaceuticals for adverse event risk
胃肠道干细胞平面培养用于筛选药物不良事件风险
- 批准号:
10707830 - 财政年份:2023
- 资助金额:
$ 19.69万 - 项目类别:
Hospital characteristics and Adverse event Rate Measurements (HARM) Evaluated over 21 years.
医院特征和不良事件发生率测量 (HARM) 经过 21 年的评估。
- 批准号:
479728 - 财政年份:2023
- 资助金额:
$ 19.69万 - 项目类别:
Operating Grants
Analysis of ECOG-ACRIN adverse event data to optimize strategies for the longitudinal assessment of tolerability in the context of evolving cancer treatment paradigms (EVOLV)
分析 ECOG-ACRIN 不良事件数据,以优化在不断发展的癌症治疗范式 (EVOLV) 背景下纵向耐受性评估的策略
- 批准号:
10884567 - 财政年份:2023
- 资助金额:
$ 19.69万 - 项目类别:
AE2Vec: Medical concept embedding and time-series analysis for automated adverse event detection
AE2Vec:用于自动不良事件检测的医学概念嵌入和时间序列分析
- 批准号:
10751964 - 财政年份:2023
- 资助金额:
$ 19.69万 - 项目类别:
Understanding the real-world adverse event risks of novel biosimilar drugs
了解新型生物仿制药的现实不良事件风险
- 批准号:
486321 - 财政年份:2022
- 资助金额:
$ 19.69万 - 项目类别:
Studentship Programs
Pediatric Adverse Event Risk Reduction for High Risk Medications in Children and Adolescents: Improving Pediatric Patient Safety in Dental Practices
降低儿童和青少年高风险药物的儿科不良事件风险:提高牙科诊所中儿科患者的安全
- 批准号:
10676786 - 财政年份:2022
- 资助金额:
$ 19.69万 - 项目类别:
Pediatric Adverse Event Risk Reduction for High Risk Medications in Children and Adolescents: Improving Pediatric Patient Safety in Dental Practices
降低儿童和青少年高风险药物的儿科不良事件风险:提高牙科诊所中儿科患者的安全
- 批准号:
10440970 - 财政年份:2022
- 资助金额:
$ 19.69万 - 项目类别:
Improving Adverse Event Reporting on Cooperative Oncology Group Trials
改进肿瘤学合作组试验的不良事件报告
- 批准号:
10642998 - 财政年份:2022
- 资助金额:
$ 19.69万 - 项目类别:
Planar culture of gastrointestinal stem cells for screening pharmaceuticals for adverse event risk
胃肠道干细胞平面培养用于筛选药物不良事件风险
- 批准号:
10482465 - 财政年份:2022
- 资助金额:
$ 19.69万 - 项目类别:
Expanding and Scaling Two-way Texting to Reduce Unnecessary Follow-Up and Improve Adverse Event Identification Among Voluntary Medical Male Circumcision Clients in the Republic of South Africa
扩大和扩大双向短信,以减少南非共和国自愿医疗男性包皮环切术客户中不必要的后续行动并改善不良事件识别
- 批准号:
10191053 - 财政年份:2020
- 资助金额:
$ 19.69万 - 项目类别:














{{item.name}}会员




