The Effect of Probiotic Supplementation on Cognitive and Emotional Functions in Healthy Elderly Subjects
The Effect of Probiotic Supplementation on Cognitive and Emotional Functions in Healthy Elderly Subjects: a Randomized, Double-blind, Cross-over and Controlled Trial
調査の概要
詳細な説明
Gut microbiota (GM) has focused as an important target for emotional and cognitive diseases, moreover in a population that show an altered GM such as elderly population as age-related changes. Several studies have shown that ageing alter GM, both in diversity and integrity.
Probiotics have demonstrated that correct or prevent age-related dysbiosis, in order to reduce or prevent intestinal permeability and associated inflammation, inhibit the generation of harmful and/or toxic metabolites, as well as promote the production of beneficial bacterial components.
The aim of this study is to assess the effectiveness of a multiprobiotic formulation as a therapeutic strategy to attenuate the emotional and cognitive decline associated with ageing in healthy adults over 55 years of age. The hypothesis is that administration of a multi-species probiotic for 10 weeks will slow and/or ameliorate the decline in emotional and cognitive function inherent to senescence.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Almeria、スペイン、04120
- Pablo Roman
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Almeria
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Almería、Almeria、スペイン、04120
- Universidad de Almeria
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La Cañada de San Urbano、Almeria、スペイン、04120
- Universidad de Almeria
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- be aged 55 years or over,
- voluntarily agree to participate in the study in accordance with the Helsinki declaration,
- not be participating in another study that could interfere with the results.
Exclusion Criteria:
- suffer from any serious mental illness other than depression and anxiety,
- score below 10 on the Mini-Mental State Examination (MMSE) (severe cognitive impairment)
- be using medications that affect cognition,
- taking anti-inflammatory drugs, antipsychotics, antibiotics and/or anxiolytics,
- have a serious illness (e.g. cancer, Parkinson's or Alzheimer's).
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:防止
- 割り当て:ランダム化
- 介入モデル:クロスオーバー割り当て
- マスキング:トリプル
武器と介入
参加者グループ / アーム |
介入・治療 |
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実験的:Probiotic group
Participants will be treated with a daily capsule of a multi-species probiotic (3.3 billion Lactobacillus rhamnosus and Bifidobacterium lactis) during 10 weeks.
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Probiotics
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プラセボコンパレーター:Placebo group
Participants will receive a harmless substance (potato starch) during 10 weeks.
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プラセボ
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change from Baseline Anxiety at 10 weeks
時間枠:Before and after treatment (10 weeks)
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The State-Trait Anxiety Inventory.
Score range: 20-80
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Before and after treatment (10 weeks)
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Change from Baseline Depression at 10 weeks
時間枠:Before and after treatment (10 weeks)
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The Beck Depression Inventory.
Score range: 0-63.
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Before and after treatment (10 weeks)
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Change from Baseline General Cognitive Status at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Mini-Mental State Examination.
Score range: 0-35
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Before and after treatment (10 weeks)
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Change from Baseline Working Memory at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Digits task, Corsi task
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Before and after treatment (10 weeks)
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Change from Baseline Planning Ability at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Tower of London test
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Before and after treatment (10 weeks)
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Change from Baseline Problem-solving ability at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Wisconsin Card Sorting test
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Before and after treatment (10 weeks)
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Change from Baseline Selective attention, cognitive flexibility and response inhibition at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Stroop task
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Before and after treatment (10 weeks)
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Change from Baseline Visual Attention at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Trail Making Test
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Before and after treatment (10 weeks)
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Change from Baseline Motor impulsivity or inhibitory response at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Go/No-Go task
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Before and after treatment (10 weeks)
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Change from Baseline Choice impulsivity or impulsive decision-making at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Iowa Gambling Task
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Before and after treatment (10 weeks)
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change from Baseline Food Habits at 10 weeks
時間枠:Before and after treatment (10 weeks)
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"24-hour recall" questionnaire
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Before and after treatment (10 weeks)
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Change from Baseline Alcohol Use at 10 weeks
時間枠:Before and after treatment (10 weeks)
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The Alcohol Use Disorders Identification Test.
Score range: 0-40
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Before and after treatment (10 weeks)
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Change from Baseline Body Composition at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Fat mass.
Body fat mass.
Fat-free mass.
Total body water.
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Before and after treatment (10 weeks)
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Change from Baseline Physical Activity at 10 weeks
時間枠:Before and after treatment (10 weeks)
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International Physical Activity Questionnaire
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Before and after treatment (10 weeks)
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Change from Baseline Stool Consistency at 10 weeks
時間枠:Before and after treatment (10 weeks)
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The Bristol Scale
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Before and after treatment (10 weeks)
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Change from Baseline Sleep Quality at 10 weeks
時間枠:Before and after treatment (10 weeks)
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The Pittsburgh Sleep Quality Index Questionnaire.
Score range: 0-21
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Before and after treatment (10 weeks)
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Change from Baseline Perceived Stress at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Perceived Stress Questionnaire.
Score range: 0-1
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Before and after treatment (10 weeks)
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Change from Baseline Gastrointestinal Symptom at 10 weeks
時間枠:Before and after treatment (10 weeks)
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Gastrointestinal Symptom Rating Scale
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Before and after treatment (10 weeks)
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協力者と研究者
スポンサー
捜査官
- 主任研究者:PABLO R LOPEZ、Universidad de Almeria
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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