Fish oil & alpha lipoic acid in mild Alzheimer's disease

鱼油

• 批准号: 6673510
• 负责人: LYNNE H SHINTO
• 金额: $ 17.96万
• 依托单位: OREGON HEALTH & SCIENCE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-30 至 2005-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6673510
• 关键词: Alzheimer's disease; acute phase protein; antioxidants; brain disorder chemotherapy; clinical research; clinical trials; cognition disorders; diet therapy; dietary supplements; human middle age (35-64); human old age (65+); human subject; human therapy evaluation; inflammation; marine animal oil; nutrition related tag; oxidative stress; patient oriented research; quality of life

DESCRIPTION (provided by applicant): The heterogeneous nature of the biological mechanisms associated with Alzheimer's disease (AD) pathology make therapies that can target multiple mechanisms of action rather than a single mechanism attractive candidates to delay or prevent disease progression. Oxidative stress has been highly implicated in Alzheimer's disease pathology and recent studies show there is also an association between an increase in inflammation and cholesterol (respectively), and AD pathology. Fish oil and alpha lipoic also have the ability to decrease oxidative stress, inflammation, and lipid levels, making them strong candidates as therapeutic agents in slowing the progression of Alzheimer's disease. These supplements also have few reported side effects. Based on their mechanisms of action, a combination of the two supplements has the potential to maximize the therapeutic benefit in delaying the progression in AD. The proposed study will be a pilot trial designed to collect preliminary data to aid in the design of a larger clinical trial powered to assess both treatments' effect on mechanisms associated with AD pathology and clinical markers of AD pathology. This pilot study is designed as a 3-arm, parallel group, double-blind placebo-controlled trial. Subjects >55 yrs. diagnosed with probable AD and having mild cognitive impairment will be randomized to one of three groups (13 subjects/group): 1. fish oil alone, 2. fish oil plus alpha lipoic acid, 3. placebo. The treatment intervention will be for 1-year. Our primary objective, Aim 1, is to assess the treatments' effect on oxidative stress by measuring urine F2-isoprotane levels. We will also collect preliminary data on the treatments' effect on plasma lipid levels and high-sensitivity C-reactive protein. Our secondary objective, Aim 2, is to collect preliminary data on AD-related clinical outcome measures which will include: the Alzheimer's Disease Assessment Scale-cognitive subscale (ADAS-cog), Clinical Dementia Rating scale (CDR), Mini Mental State Examination (MMSE), Alzheimer's Disease Cooperative Study Activities of Daily Living Scale, SF-36, and Logical Memory I1.Our tertiary objective, Aim 3, is to assess treatment safety by a monthly monitoring of adverse events and laboratory tests (metabolic panel, including liver function tests and platelet function assay). Compliance of fish oil supplementation will be assessed by red blood cell membrane fatty acid analysis.

描述（由申请人提供）：与阿尔茨海默病（AD）病理相关的生物学机制的异质性使得可以针对多种作用机制而不是单一机制的治疗方法具有延迟或预防疾病进展的吸引力。氧化应激与阿尔茨海默病的病理密切相关，最近的研究表明，炎症和胆固醇的增加（分别）与AD病理之间也存在关联。鱼油和α硫辛酸还具有降低氧化应激、炎症和脂质水平的能力，这使它们成为减缓阿尔茨海默病进展的强有力的治疗药物。这些补充剂也几乎没有副作用的报道。基于它们的作用机制，这两种补充剂的组合有可能最大限度地延缓阿尔茨海默病的进展。拟议的研究将是一项试点试验，旨在收集初步数据，以帮助设计更大规模的临床试验，以评估两种治疗方法对阿尔茨海默病病理相关机制和阿尔茨海默病病理临床标志物的影响。本初步研究设计为3组、平行组、双盲安慰剂对照试验。受试者年龄为55岁。被诊断为可能患有阿尔茨海默病并有轻度认知障碍的患者将被随机分为三组（13人/组）：仅鱼油，2。鱼油加硫辛酸，3。安慰剂。治疗干预期为1年。我们的主要目标，目的1，是通过测量尿液f2 -异丙烷水平来评估治疗对氧化应激的影响。我们还将收集治疗对血脂水平和高敏c反应蛋白影响的初步数据。我们的次要目标，目的2，是收集ad相关临床结果测量的初步数据，包括：阿尔茨海默病评估量表-认知亚量表（ADAS-cog）、临床痴呆评定量表（CDR）、迷你精神状态检查（MMSE）、阿尔茨海默病日常生活合作研究活动量表、SF-36和逻辑记忆11。我们的第三个目标，Aim 3，是通过每月监测不良事件和实验室测试（代谢组，包括肝功能测试和血小板功能分析）来评估治疗安全性。补充鱼油的依从性将通过红细胞膜脂肪酸分析来评估。