食品科学

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基于综合性Meta分析的乳三肽VPP和IPP在随机安慰剂对照实验中的抗高血压效能

光翠娥1,尚建钢1,江 波1,Franco MILANI2,Robert Dick PHILLIPS3,张海玲1   

  1. 1.江南大学 食品科学与技术国家重点实验室,江苏 无锡 214122;2.威斯康星大学食品科学系,
    威斯康星 麦迪逊 53706-1565,美国;3.佐治亚大学食品科学与技术系,佐治亚 格里芬 30223-1797,美国
  • 出版日期:2015-09-15 发布日期:2015-09-11

Antihypertensive Effect of Lactotripeptides VPP and IPP in Randomized Placebo-Controlled Trials: A Comprehensive Meta-Analysis

GUANG Cuie1, SHANG Jiangang1, JIANG Bo1, Franco MILANI2, Robert Dick PHILLIPS3, ZHANG Hailing1   

  1. 1. State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; 2. Department of Food
    Science, University of Wisconsin-Madison, Madison 53706-1565, USA; 3. Department of Food Science and Technology,
    University of Georgia, Griffin 30223-1797, USA
  • Online:2015-09-15 Published:2015-09-11

摘要:

为评估口服乳三肽VPP(Val-Pro-Pro)和IPP(Ile-Pro-Pro)对血压的影响,基于综合性Meta分析选择了包含在21 个研究中的27 项临床实验、2 142 个高血压前期或高血压患者。由于存在异质性,采用随机影响模式进行分析。结果表明:Meta分析中未发现发表偏倚,收缩压(systolic blood pressure,SBP)降低了1.78 mmHg(95%可信区间为-2.47~-1.08,P<0.001),舒张压(diastolic blood pressure,DBP)降低了0.67 mmHg(95%可信区间为-1.11~-0.23,P<0.001)。亚组分析结果表明:亚洲人群SBP为-6.56 mmHg、DBP为-3.01 mmHg,2008年前的研究对象SBP为-6.57 mmHg、DBP为-3.08 mmHg,口服乳三肽剂量<5 mg/d的患者SBP为-5.20 mmHg、DBP为-2.05 mmHg,以及诊所偶测SBP(-2.74 mmHg)与DBP(-1.18 mmHg)和家庭自测SBP(-7.61 mmHg)与DBP(-4.83 mmHg)都显著下降,而相应的比较对象则没有。因此,包含乳三肽VPP和IPP的功能性食品对高血压前期或轻度高血压患者是有效的,特别是在低剂量食用时对亚洲人群的诊所偶测血压和家庭自测血压有明显效果。

关键词: 乳三肽, 抗高血压效能, 功能性食品, Meta分析

Abstract:

A comprehensive meta-analysis was conducted to evaluate the effect of lactotripeptides (LTPs) Val-Pro-Pro
(VPP) and Ile-Pro-Pro (IPP) on blood pressure (BP) after oral administration. Twenty one randomized, placebo-controlled
studies with 27 trials consisting of 2 142 prehypertensive or hypertensive individuals were identified through a defined
search strategy, and due to heterogeneity among studies the random effect model was used for the analysis. The pool effect
was a reduction of -1.78 mmHg [95% confidence interval (CI): - 2.47 to -1.08, P < 0.001] for systolic blood pressure
(SBP) and -0.67 mmHg (95% CI: - 1.11 to -0.23, P < 0.001) for diastolic blood pressure (DBP), and no publication
bias was present. Subgroup analyses showed that the intake of LTPs resulted in significant decreases in BP in Asians (SBP:
-6.56 mmHg; DBP: -3.01 mmHg), in subjects from publications before 2008 (SBP: -6.57 mmHg, DBP: -3.08 mmHg)
and participants with a dose of less than 5 mg/d (SBP: -5.20 mmHg; DBP: -2.05 mmHg), and in office SBP
(-2.74 mmHg) and DBP (-1.18 mmHg) and home SBP (-7.61 mmHg) and DBP (-4.83 mmHg), whereas no significant
effects were observed in their respective counterparts. These results suggest that functional foods containing LTPs may be
useful as part of dietary intervention of pre- or mild hypertension.

Key words: lactotripeptides, antihypertensive effect, functional foods, meta-analysis

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