Evidence map›Paper›PMID 22233644›Full record

ArticleLipids in health and disease2012

Studies on the antihypertensive and antidyslipidemic activities of Viola odorata leaves extract.

Hasan S Siddiqi, Malik H Mehmood, Najeeb U Rehman, Anwar H Gilani

Open access · goldAbstract read
In one paragraph

Article in Lipids in health and disease, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

31 citing papers in PubMed, 102 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Antihypertensive Effects of Aqueous Extract ofEvidence-based complementary and alternative medicine : eCAM · 2022
    Article
  9. Article
  10. Medicinal Plants in the Treatment of Hypertension: A Review.Advanced pharmaceutical bulletin · 2021
    Review
  11. Article
  12. Effectiveness ofEvidence-based complementary and alternative medicine : eCAM · 2021
    Article
  13. Article
  14. Article
  15. Suppressive role of Viola odorata extract on malignant characters of mammosphere-derived breast cancer stem cells.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2020
    Article
  16. Pharmacological Modulation of Smooth Muscles and Platelet Aggregation byEvidence-based complementary and alternative medicine : eCAM · 2020
    Article
  17. Article
  18. Review
  19. Journal of natural products · 2019
    Article
  20. Inhibitory Effect ofIranian journal of pharmaceutical research : IJPR · 2018
    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 1 institution in 1 country.

Hasan S SiddiqiNatural Product Research Division, Department of Biological and Biomedical Sciences, The Aga Khan University Medical College, Karachi-74800, Pakistan.
Malik H Mehmood
Najeeb U Rehman
Anwar H Gilani
Aga Khan University · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study was undertaken to provide pharmacological basis for the medicinal use of Viola odorata Linn. in hypertension and dyslipidemia using the in vivo and in vitro assays.

resultsViola odorata leaves extract (Vo.Cr), which tested positive for alkaloids, saponins, tannins, phenolics, coumarins and flavonoids, caused a dose-dependent (0.1-1.0 mg/kg) decrease in mean arterial blood pressure in anaesthetized rats. In isolated guinea-pig atria, Vo.Cr equally inhibited force and rate of spontaneous atrial contractions. On the baseline of rat thoracic aortae (endothelium-intact and denuded), the plant extract caused phentolamine-sensitive vasoconstriction. When tested on phenylephrine (PE, 1 μM) and K(+) (80 mM)-induced vasoconstriction, Vo.Cr caused a concentration-dependent relaxation and also caused a rightward shift of Ca(++) concentration-response curves as well as suppression of PE (1 μM) control peaks in Ca(++)-free medium, similar to that caused by verapamil. In the presence of L-NAME, the relaxation curve of Vo.Cr was partially inhibited showing involvement of Nitric oxide (NO) mediated pathway. In Tyloxapol-induced dyslipidemia, Vo.Cr caused reduction in total cholesterol and triglyceride levels. In high-fat diet-induced dyslipidemia model, the plant extract caused a significant decrease in total cholesterol, LDL-C, atherogenic index and prevented the increase in average body weights, while it increased HDL-C.

conclusionsThese data indicate that the vasodilator effect of the plant extract is mediated through multiple pathways like inhibition of Ca(++) influx via membranous Ca(++) channels, its release from intracellular stores and NO-mediated pathways, which possibly explain the fall in BP. The plant also showed reduction in body weight and antidyslipidemic effect which may be due to the inhibition of synthesis and absorption of lipids and antioxidant activities. Thus, this study provides a pharmacologic rationale to the medicinal use of Viola odorata in hypertension and dyslipidemia.

Indexed as

AnimalsAntihypertensive AgentsAortaAorta, ThoracicBlood GlucoseBlood PressureCalcium Channel BlockersCalcium SignalingDiet, High-FatDyslipidemiasGuinea PigsHypolipidemic AgentsIn Vitro TechniquesLipidsMaleMyocardial ContractionAntihypertensive AgentsBlood GlucoseCalcium Channel BlockersHypolipidemic AgentsLipidsPhenylephrinePlant ExtractsVasoconstrictor Agents

Identifiers

PMID22233644
PMCPMC3286389
OpenAlexW2168997419

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.