Effects of Daily Walnut Intake Among the Subjects With Metabolic Syndrome
Effects of Daily Walnut Intake Among the Subjects With Metabolic Syndrome in South Korea
Investigators planed to conduct a randomized, controlled, crossover trial to examine the effects of daily walnuts intake among Korean subjects with metabolic syndrome. Primary objective of this study was to investigate the effects of daily walnut intake on changes of metabolic syndrome indices in Koreans with metabolic syndrome age over 30 years old. This study was consisted of four periods: run-in, first intervention, wash-out, and second intervention phases. As 16 weeks of first intervention period began after the run-in phase, the subjects were randomly assigned into one of two groups: walnut group and control group. Participants in walnut group consumed 45 grams of walnuts on a daily basis and participants in control group were provided iso-caloric white bread for first 16 weeks. After the first intervention and wash-out period (6 weeks), second intervention which is crossover of first intervention was started during the next 16 weeks. Anthropometric measurements and biochemical analyses were done at the beginning and the end of each intervention (0, 16, 22, and 38 weeks of trial). Habitual diet was randomly observed using 3-day diet record once during each phase.
Investigators expected to evaluate 1)effects of walnut ingestion on reverting metabolic syndrome to normal status especially by reducing waist circumference and improving serum levels of triglyceride and high-density lipoprotein, 2)beneficial effects of daily walnut consumption on changes of body composition in the subjects with metabolic syndrome, and 3)regulatory effects of daily walnut intake on inflammatory markers and diabetic markers.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
研究の種類
研究の種類
入学 (実際)
入学
段階
段階
- 適用できない
連絡先と場所
研究場所
-
-
-
Seoul、大韓民国、07327
- ICAN Nutrition Education and Research
-
-
参加基準
適格基準
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: at least three out of five metabolic syndrome components
- waist circumference (WC) >90 cm for men and >80 cm for women
- hypertension (DBP ≥85 and <110 mm Hg)
- hyperglycemia (≥100 mg/dL)
- elevated plasma TG concentrations (≥150 mg/dL)
- decreased plasma HDL-C concentrations (<40 mg/dL for men and <50 mg/dL for women)
Exclusion Criteria:
- the presence of morbid obesity (BMI ≥40)
- the use of any medication for the control of blood pressure, glucose, or lipid metabolism
- a medical history of hypocaloric diet consumption within the past year
- gastrointestinal tract disorders
- post-menopausal women
- smokers
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:処理
- 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:ダブル
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Walnut-Control
|
45 g of walnut / iso-caloric white bread
|
|
実験的:Control-Walnut
|
45 g of walnut / iso-caloric white bread
|
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
changes of waist circumference
時間枠:after 16 weeks of daily walnut consumption
|
Waist circumferences (cm) were obtained at the midpoint between the lowest rib and the iliac crest and rounded to the nearest 0.1 cm after inhalation and exhalation.
|
after 16 weeks of daily walnut consumption
|
|
changes of blood triglyceride level
時間枠:after 16 weeks of daily walnut consumption
|
Serum triglycerides (mg/dL) levels were measured by an enzymatic-colorimetric method.
|
after 16 weeks of daily walnut consumption
|
|
changes of blood high-density lipoprotein cholesterol levels
時間枠:after 16 weeks of daily walnut consumption
|
High density lipoprotein cholesterol (mg/dL) levels were determined by a homogeneous enzymatic-colorimetric method.
|
after 16 weeks of daily walnut consumption
|
|
changes of blood pressure
時間枠:after 16 weeks of daily walnut consumption
|
Blood pressure (mmHg) was measured on the right arm using an up-load blood pressure monitor with participants in a comfortably seated position after at least a 5-minute rest.
|
after 16 weeks of daily walnut consumption
|
|
changes of blood glucose level
時間枠:after 16 weeks of daily walnut consumption
|
Blood glucose levels (mg/dL) were measured using blood glucose monitor and test stripts from the finger tip.
|
after 16 weeks of daily walnut consumption
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
changes of total cholesterol level
時間枠:after 16 weeks of daily walnut consumption
|
Serum total cholesterol levels (ml/dL) were measured by an enzymatic-colorimetric method.
|
after 16 weeks of daily walnut consumption
|
|
changes of serum apolipoprotein B level
時間枠:after 16 weeks of daily walnut consumption
|
Serum apolipoprotein B (ml/dL) was measured using a turbidimetric immunoassay.
|
after 16 weeks of daily walnut consumption
|
|
changes of serum adiponectin level
時間枠:after 16 weeks of daily walnut consumption
|
Blood adiponectin (ug/mL) levels were measured using ELISA.
|
after 16 weeks of daily walnut consumption
|
|
changes of serum leptin level
時間枠:after 16 weeks of daily walnut consumption
|
Blood leptin (ug/mL) levels were measured using ELISA.
|
after 16 weeks of daily walnut consumption
|
|
changes of serum insulin level
時間枠:after 16 weeks of daily walnut consumption
|
Serum insulin (μU/mL) was measured with a commercially available kit, the ultrasensitive insulin ELISA kit using an Epoch microplate spectrophotometer.
|
after 16 weeks of daily walnut consumption
|
|
changes of low-density lipoprotein cholesterol level
時間枠:after 16 weeks of daily walnut consumption
|
Low-density lipoprotein cholesterol levels (ml/dL) were determined by a homogeneous enzymatic-colorimetric method.
|
after 16 weeks of daily walnut consumption
|
協力者と研究者
協力者
協力者
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始 (実際)
研究開始
一次修了 (実際)
一次修了
研究の完了 (実際)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
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
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
その他の研究ID番号
- CWC-2016-MetS
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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