Evidence map›Paper›PMID 26602523›Full record

ArticleClinics (Sao Paulo, Brazil)2015

Mechanisms of the antihypertensive effects of Nigella sativa oil in L-NAME-induced hypertensive rats.

Kamsiah Jaarin, Wai Dic Foong, Min Hui Yeoh, Zaman Yusoff Nik Kamarul, Haji Mohd Saad Qodriyah, Abdullah Azman, Japar Sidik Fadhlullah Zuhair, Abdul Hamid Juliana, Yusof Kamisah

Open access · goldAbstract read
In one paragraph

Article in Clinics (Sao Paulo, Brazil), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
13.6field-weighted citation impact, top 1% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 98 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Comprehensive and updated review on anti-oxidant effects ofIranian journal of basic medical sciences · 2024
    Review
  5. Review
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  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Medicinal Plants in the Treatment of Hypertension: A Review.Advanced pharmaceutical bulletin · 2021
    Review
  13. Plants Used as Antihypertensive.Natural products and bioprospecting · 2021
    Review
  14. Review
  15. Review
  16. Potential pharmacodynamic and pharmacokinetic interactions ofSaudi journal of biological sciences · 2020
    Article
  17. Local Usage ofOman medical journal · 2020
    Article
  18. Asian biomedicine : research, reviews and news · 2020
    Review
  19. Article
  20. Iranian journal of basic medical sciences · 2020
    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

9 authors at 1 institution in 1 country.

Kamsiah JaarinDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Wai Dic FoongDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Min Hui YeohDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Zaman Yusoff Nik KamarulDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Haji Mohd Saad QodriyahDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Abdullah AzmanDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Japar Sidik Fadhlullah ZuhairDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Abdul Hamid JulianaDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
Yusof KamisahDepartment of Pharmacology, Faculty of Medicine, UKMMC, Universiti Kebangsaan Malaysia, Cheras/, Kuala Lumpur, Malaysia.
University Kebangsaan Malaysia Medical Centre · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study was conducted to determine whether the blood pressure-lowering effect of Nigella sativa might be mediated by its effects on nitric oxide, angiotensin-converting enzyme, heme oxygenase and oxidative stress markers.

methodsTwenty-four adult male Sprague-Dawley rats were divided equally into 4 groups. One group served as the control (group 1), whereas the other three groups (groups 2-4) were administered L-NAME (25 mg/kg, intraperitoneally). Groups 3 and 4 were given oral nicardipine daily at a dose of 3 mg/kg and Nigella sativa oil at a dose of 2.5 mg/kg for 8 weeks, respectively, concomitantly with L-NAME administration.

resultsNigella sativa oil prevented the increase in systolic blood pressure in the L-NAME-treated rats. The blood pressure reduction was associated with a reduction in cardiac lipid peroxidation product, NADPH oxidase, angiotensin-converting enzyme activity and plasma nitric oxide, as well as with an increase in heme oxygenase-1 activity in the heart. The effects of Nigella sativa on blood pressure, lipid peroxidation product, nicotinamide adenine dinucleotide phosphate oxidase and angiotensin-converting enzyme were similar to those of nicardipine. In contrast, L-NAME had opposite effects on lipid peroxidation, angiotensin-converting enzyme and NO.

conclusionThe antihypertensive effect of Nigella sativa oil appears to be mediated by a reduction in cardiac oxidative stress and angiotensin-converting enzyme activity, an increase in cardiac heme oxygenase-1 activity and a prevention of plasma nitric oxide loss. Thus, Nigella sativa oil might be beneficial for controlling hypertension.

Indexed as

AnimalsAntihypertensive AgentsBlood PressureHeme Oxygenase (Decyclizing)HypertensionMaleMalondialdehydeModels, AnimalNADPH OxidasesNG-Nitroarginine Methyl EsterNicardipineNigella sativaNitric OxideOxidative StressPeptidyl-Dipeptidase APlant OilsAntihypertensive AgentsHeme Oxygenase (Decyclizing)MalondialdehydeNADPH OxidasesNG-Nitroarginine Methyl EsterNicardipineNitric OxidePeptidyl-Dipeptidase APlant Oils

Identifiers

PMID26602523
PMCPMC4642492
OpenAlexW2180493360

What OpenQuestion holds

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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.