Evidence map›Paper›PMID 29147120›Full record

ArticleARYA atherosclerosis2017

A comparative study of the effect of green tea and sour tea on blood pressure and lipid profile in healthy adult men.

Marzieh Kafeshani, Mohammad Hasan Entezari, Jahangir Karimian, Makan Pourmasoumi, Mohammad Reza Maracy, Mohammad Reza Amini, Amir Hadi

Open access · greenAbstract read
PubMed Full text at PMC
In one paragraph

Article in ARYA atherosclerosis, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 5 pooled it
4.7field-weighted citation impact, top 6% 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

10 citing papers in PubMed, 5 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Roselle for hypertension in adults.The Cochrane database of systematic reviews · 2021
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Roselle for hypertension in adults.The Cochrane database of systematic reviews · 2010
    Pooled it
  6. Review
  7. Review
  8. Review
  9. Physiological Effects and Human Health Benefits ofPharmaceuticals (Basel, Switzerland) · 2022
    Review
  10. 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

7 authors at 1 institution in 1 country.

Marzieh KafeshaniFood Security Research Center AND Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Mohammad Hasan EntezariAssociate Professor, Food Security Research Center AND Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Jahangir KarimianAssociate Professor, Department of Physical Education and Sports Science, School of Management and Medical Information, Isfahan University of Medical Sciences, Isfahan, Iran.
Makan PourmasoumiMSc Student, Student Research Committee AND Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Mohammad Reza MaracyProfessor, Department of Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
Mohammad Reza AminiMSc Student, Student Research Committee AND Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Amir HadiMSc Student, Student Research Committee AND Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Isfahan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCardiovascular diseases (CVD) are a set of metabolic disorders affecting heart and blood vessels. Green tea and sour tea (Hibiscus sabdariffa L.) have attracted significant attention recently due to their high popularity, nutrient profile and therapeutic effects. The aim of the present study was to compare the effects of green tea and sour tea supplementation on blood pressure and lipid profile in healthy adult men.

methodsThis randomized, double-blind, placebo-controlled trial included 54 healthy adult men. The participants were randomly assigned to two intervention groups receiving 450 mg green tea or sour tea and one placebo group which consumed 450 mg placebo (maltodextrin) for 6 weeks. Blood pressure, lipid profile, dietary intake and physical activity were measured pre- and post-intervention and compared.

resultsAfter 6 weeks of intervention, sour tea supplementation led to a significant decrease in systolic blood pressure (SBP) compared with the placebo group. However, we faild to find any significant difference in SBP between green tea and control groups. Also, no significant changes were observed in diastolic blood pressure (DBP) and lipid profile between the three groups. In comparison with baseline, there was a significant increase in the mean level of serum high-density lipoprotein cholesterol (HDL-C) in green tea and sour tea groups. Also, the interventions resulted in significant decrease in the mean levels of serum total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) and DBP in the sour tea group compared with the pre-intervention value.

conclusionOn the basis of our findings, sour tea supplementation led to decreased SBP in healthy men compared with the placebo, but there was no significant difference between their effects on DBP and lipid profile.

Indexed as

AdultsBlood PressureGreen TeaHibiscus Sabdariffa

Identifiers

PMID29147120
PMCPMC5677327
OpenAlexW2727009873

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.