Evidence map›Paper›PMID 24573416›Full record

ArticleEuropean journal of nutrition2014

Inhibition of angiotensin-converting enzyme by aqueous extract of tomato.

Dipankar Biswas, Md Main Uddin, Lili L Dizdarevic, Aud Jørgensen, Asim K Duttaroy

Abstract read
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In one paragraph

Article in European journal of nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Phytochemical and Biological Biodiversity of Tomato (Mini reviews in medicinal chemistry · 2025
    Review
  3. Biotechnologia · 2025
    Review
  4. Article
  5. Effects of Aqueous Extract ofPathophysiology : the official journal of the International Society for Pathophysiology · 2021
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Antiplatelet treatment in the primary prophylaxis of cardiovascular disease in patients with arterial hypertension.Kardiochirurgia i torakochirurgia polska = Polish journal of cardio-thoracic surgery · 2017
    Review
  11. FruitflowEuropean journal of nutrition · 2017
    Review
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.

Dipankar BiswasDepartment of Nutrition, Faculty of Medicine, Institute of Basic Medical Sciences, University of Oslo, PO Box 1046, Blindern, 0316, Oslo, Norway.
Md Main Uddin
Lili L Dizdarevic
Aud Jørgensen
Asim K Duttaroy

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the presence of anti-angiotensin converting enzyme (ACE) factors in aqueous extract of tomato.

methodsThe bio-guided fractionation of the aqueous extract of tomato produced a sugar-free, heat-stable fraction with molecular mass <1,000 Da from tomatoes. The sugar-free tomato extract (TE) was tested for its anti-ACE activity using human plasma and rabbit lung pure ACE. In addition, its effect on human platelet aggregation induced by ADP, collagen or arachidonic acid was determined. The mechanism of platelet inhibitory action of TE was investigated by measuring platelet factor 4 (PF4) release and cAMP synthesis by platelets.

resultsTypically, 100 g tomatoes produced 72.2 ± 4.7 mg of TE. This extract inhibited both platelet aggregation and plasma ACE activity in a dose-dependent manner. It inhibited platelet aggregation in response to ADP, collagen or arachidonic acid, and inhibitory action was mediated in part by reducing platelet PF4 release and by stimulating cAMP synthesis. The IC50 value of TE for ADP-induced platelet aggregation was 0.4 ± 0.02 mg/ml, whereas the IC50 value for ACE enzyme inhibition was 1.40 ± 0.04 mg/ml. Both the TE and commercially available sugar-free TE, Fruitflow(®)-2 had similar amount of catechin, and also had equal inhibitory potencies against platelet aggregation and plasma ACE activity.

conclusionTogether these data indicate that aqueous extract of tomatoes contain anti-ACE factors in addition to previously described anti-platelet factors.

Indexed as

Angiotensin-Converting Enzyme InhibitorsAnimalsArachidonic AcidCollagenCyclic AMPHydroxybenzoatesPeptidyl-Dipeptidase APlant ExtractsPlatelet AggregationPlatelet Aggregation InhibitorsRabbitsSolanum lycopersicumAngiotensin-Converting Enzyme InhibitorsArachidonic AcidCollagenCyclic AMPHydroxybenzoatesPeptidyl-Dipeptidase Aphenolic acidPlant ExtractsPlatelet Aggregation Inhibitors

Identifiers

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.