Trial reportJournal of human hypertension2009
The effects of sour tea (Hibiscus sabdariffa) on hypertension in patients with type II diabetes.
Trial report in Journal of human hypertension, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled 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.
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.
Who cites it
25 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- A systematic review and meta-analysis of the effects of Hibiscus sabdariffa on blood pressure and cardiometabolic markers.Nutrition reviews · 2022Pooled it
- Roselle for hypertension in adults.The Cochrane database of systematic reviews · 2021Pooled it
- Roselle for hypertension in adults.The Cochrane database of systematic reviews · 2010Pooled it
- Clinical efficacy of African traditional medicines in hypertension: A randomized controlled trial with Combretum micranthum and Hibiscus sabdariffa.Journal of human hypertension · 2017Trial
- Randomised, double-blind, placebo-controlled, assessment of the efficacy and safety of dietary supplements in prehypertension.Journal of human hypertension · 2017Trial
- Review
- Review
- Review
- Therapeutic Potential ofPharmaceuticals (Basel, Switzerland) · 2023Review
- Leaky Gut and the Ingredients That Help Treat It: A Review.Molecules (Basel, Switzerland) · 2023Review
- Article
- Review
- Physiological Effects and Human Health Benefits ofPharmaceuticals (Basel, Switzerland) · 2022Review
- Effect of the roselle (Biomedical reports · 2021Article
- Role of Herbal Teas in Regulating Cellular Homeostasis and Autophagy and Their Implications in Regulating Overall Health.Nutrients · 2021Review
- Aqueous Fraction fromNutrients · 2020Article
- Herbal Teas and their Health Benefits: A Scoping Review.Plant foods for human nutrition (Dordrecht, Netherlands) · 2019Article
- Development of an Ultrasonication-Assisted Extraction Based HPLC With a Fluorescence Method for Sensitive Determination of Aflatoxins in Highly AcidicFrontiers in pharmacology · 2018Article
- Anti-hypertensive Herbs and their Mechanisms of Action: Part I.Frontiers in pharmacology · 2015Review
- Antiartherosclerotic effects of plant flavonoids.BioMed research international · 2014Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To compare the antihypertensive effectiveness of sour tea (ST; Hibiscus sabdariffa) with black tea (BT) infusion in diabetic patients, this double-blind randomized controlled trial was carried out. Sixty diabetic patients with mild hypertension, without taking antihypertensive or antihyperlipidaemic medicines, were recruited in the study. The patients were randomly allocated to the ST and BT groups and instructed to drink ST and BT infusions two times a day for 1 month. Their blood pressure (BP) was measured on days 0, 15 and 30 of the study. The mean of systolic BP (SBP) in the ST group decreased from 134.4+/-11.8 mm Hg at the beginning of the study to 112.7+/-5.7 mm Hg after 1 month (P-value <0.001), whereas this measure changed from 118.6+/-14.9 to 127.3+/-8.7 mm Hg (P-value=0.002) in the BT group during the same period. The intervention had no statistically significant effect on the mean of diastolic BP (DBP) in either the ST or BT group. The mean pulse pressure (PP) of the patients in the ST group decreased from 52.2+/-12.2 to 34.5+/-9.3 mm Hg (P-value <0.001) during the study, whereas in the BT group, it increased from 41.9+/-11.7 to 47.3+/-9.6 mm Hg (P-value=0.01). In conclusion, consuming ST infusion had positive effects on BP in type II diabetic patients with mild hypertension. This study supports the results of similar studies in which antihypertensive effects have been shown for ST.
Indexed as
Identifiers
18685605What OpenQuestion holds
Registered trials
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.