Evidence map›Paper›PMID 20811398›Full record

SynthesisJournal of human hypertension2011

Blood pressure lowering effect of lactotripeptides assumed as functional foods: a meta-analysis of current available clinical trials.

A F G Cicero, B Gerocarni, L Laghi, C Borghi

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Journal of human hypertension, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 6 pooled it
4.5field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 6 syntheses or guidelines pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Fermented milk for hypertension.The Cochrane database of systematic reviews · 2012
    Pooled it
  7. Trial
  8. Trial
  9. Trial
  10. Trial
  11. Review
  12. Effect of Fermentation withMicroorganisms · 2023
    Article
  13. Article
  14. Functional Food Based on Potato.Foods (Basel, Switzerland) · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Dietary Intervention to Improve Blood Pressure Control: Beyond Salt Restriction.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2021
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

A F G CiceroInternal Medicine, Aging and Kidney diseases Department, Sant'Orsola-Malpighi University Hospital, University of Bologna, Bologna, Italy. afgcicero@cardionet.it
B Gerocarni
L Laghi
C Borghi
Policlinico S.Orsola-Malpighi · ITUniversity of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The oral assumption of lactotripeptides Valine-Proline-Proline (VPP) and Isoleucine-Proline-Proline (IPP) as nutraceuticals or functional foods is supposed to improve blood pressure (BP) control by angiotensin-converting enzyme-inhibition. However, data derived from clinical trials have reached conflicting conclusions. To perform a meta-analysis of placebo-controlled clinical trials evaluating the anti-hypertensive effect of lactotripeptides assumed as nutraceuticals or functional foods. Trials identified using a defined search strategy in PubMed were included in the meta-analysis, and their pooled effect was estimated with a random effects model, weighting for the inverse of the variance. Heterogeneity, publication bias, subgroup and meta-regression analyses were performed. A total of 18 trials have been identified, the clinical data of which have been clearly reported. Pooled effect of peptides was a reduction of -3.73 mm Hg (95% CI: -6.70, -1.76) for systolic blood pressure (SBP) and 1.97 mm Hg (95% CI: -3.85, -0.64) for diastolic blood pressure (DBP). The effect was more evident in Asian patients (SBP = -6.93 mm Hg (95% CI: -10.95, -2.94); DBP=-3.98 mm Hg(95% CI: -5.38, -2.44)) than in Caucasian ones (SBP=-1.17 mm Hg (95% CI: -2.82, 0.72); DBP = -0.52 mm Hg (95% CI: -1.39, 0.13)), and apparently not related to age, baseline BP values, dose of lactotripeptides assumed or length of the treatment. VPP and IPP lactotripeptides assumed as functional foods may significantly reduce SBP particularly in Asian subjects. The relevance of this findings in other ethnicities or associated with different dietary pattern should to be further investigated.

Indexed as

Dietary SupplementsAdultAsian PeopleBlood PressureFemaleHumansHypertensionMaleMiddle AgedOligopeptidesRandomized Controlled Trials as Topicisoleucyl-prolyl-prolineOligopeptidesvalyl-prolyl-proline

Identifiers

PMID20811398
OpenAlexW2014967635

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.