Evidence map›Paper›PMID 25493193›Full record

ArticleFood science & nutrition2014

Reduction in blood pressure and serum lipids by lycosome formulation of dark chocolate and lycopene in prehypertension.

Ivan M Petyaev, Pavel Y Dovgalevsky, Natalia E Chalyk, Victor Klochkov, Nigel H Kyle

Abstract read
In one paragraph

Article in Food science & nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Effect of cocoa on blood pressure.The Cochrane database of systematic reviews · 2017
    Pooled it
  3. Trial
  4. Procyanidin B2-induced LKB1-AMPK activation mitigates vascular smooth muscle cell proliferation through inhibition of mTOR signaling.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2025
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  17. Cocobiota: Implications for Human Health.Journal of nutrition and metabolism · 2016
    Review
  18. 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

5 authors.

Ivan M PetyaevLycotec Ltd Granta Park Campus, Cambridge, CB21 6GP, United Kingdom.
Pavel Y DovgalevskyInstitute of Cardiology 12 Chernyshevskogo Str, Saratov, 410028, Russia.
Natalia E ChalykInstitute of Cardiology 12 Chernyshevskogo Str, Saratov, 410028, Russia.
Victor KlochkovInstitute of Cardiology 12 Chernyshevskogo Str, Saratov, 410028, Russia.
Nigel H KyleLycotec Ltd Granta Park Campus, Cambridge, CB21 6GP, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Twenty-nine healthy volunteers aged 47-69 years old were randomly assigned to a 28-day oral intake of different dark chocolate (DC) formulations. The main group received daily 30 g of proprietary lycopene-containing (L-tug) lycosome formulation of DC with enhanced bioavailability of cocoa flavanols. Two control groups daily consumed either 30 g of regular DC alone or along with 7 mg of lycopene, which corresponds to the amount of lycopene ingested with L-tug formulation. It was found that L-tug was more efficient in reducing diastolic blood pressure (mean value of -6.22 mmHg, 95% CI: 5.00, 8.00) when compared with the regular DC group (-3.00 mmHg, P < 0.05) or the group which ingested the DC and lycopene as two separate formulations (mean reduction of -4 mmHg, 95% CI: 2.47, 6.00, P = 0.0262). Only marginal superiority for L-tug formulation in the reduction in systolic blood pressure was seen. However, the L-tug formulation was the only formulation of DC which affected serum lipids. There was a reduction in total cholesterol (from median 228.00 mg/dL [95% CI: 206.2, 242.5] to 187.00 mg/dL [95% CI: 166.2, 202.2, P < 0.05]) with corresponding decline of low-density lipoprotein (LDL) cholesterol (from a median of 166.00 mg/dL [95% CI: 130.8, 177.0] to 151.00 mg/dL [95% CI: 122.8, 167.4; P < 0.05]) at the end of the intervention period. Similar decline was seen in serum triglycerides (P < 0.05). Serum high-density lipoprotein (HDL) cholesterol, glucose levels, and C-reactive protein (CRP) values remained statistically unchanged in all study groups throughout the intervention period. A superior biological activity of the L-tug lycosome formulation of DC extending beyond its antihypertensive effect to lipid-lowering ability opens up new possibilities for the use of DC for health purposes helping to reduce daily caloric intake without compromising on the health benefits of DC consumption.

Indexed as

Dark chocolatelycopeneprehypertensionserum lipids

Identifiers

PMID25493193
PMCPMC4256580

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Registered trials

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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.