Evidence mapPaperPMID 37036558Full record

SynthesisInflammopharmacology2023

The effect of Nigella sativa (black seed) on biomarkers of inflammation and oxidative stress: an updated systematic review and meta-analysis of randomized controlled trials.

Zeynab Kavyani, Vali Musazadeh, Sahar Golpour-Hamedani, Amir Hossein Moridpour, Mahdi Vajdi, Gholamreza Askari

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Inflammopharmacology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Effect ofCurrent pharmaceutical biotechnology · 2024
    Pooled it
  3. Trial
  4. Article
  5. Analysis of Pharmacological Properties ofLife (Basel, Switzerland) · 2025
    Review
  6. Article
  7. Investigation of the Immunomodulatory and Neuroprotective Properties ofInternational journal of molecular sciences · 2025
    Article
  8. Clinical andInfectious disorders drug targets · 2025
    Review
  9. Review
  10. An Overview of Possible Beneficial Effects of Black Seeds (Infectious disorders drug targets · 2025
    Review
  11. Review
  12. Article
  13. Chronic Treatment withInternational journal of molecular sciences · 2024
    Article
  14. Article
  15. Effects ofAvicenna journal of phytomedicine
    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

6 authors.

Zeynab Kavyani *Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Vali Musazadeh *Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.ORCID http://orcid.org/0000-0002-4978-9474
Sahar Golpour-HamedaniStudent Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran.
Amir Hossein MoridpourStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Mahdi VajdiStudent Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran. MV.vajdi@gmail.com.
Gholamreza AskariDepartment of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Science, Isfahan, Iran. Askari@mui.ac.ir.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study was conducted to assess the effect of Nigella sativa (N. sativa) supplementation on inflammatory and oxidative markers among the adult population.

methodsWe carried out a comprehensive, systematic search of Scopus, Embase, Cochrane Library, Web of Science, PubMed, and Google Scholar till December 2022. A random-effects model was used to estimate the overall effect size.

resultsIn total, twenty trials consisting of 1086 participants were included in the meta-analysis. Findings from 20 RCTs included in the meta-analysis suggest that N. sativa supplementation could significantly reduce serum C-reactive protein (CRP) (SMD = - 2.28; 95% CI - 3.20, - 1.37, p < 0.001), tumour necrosis factor α (TNFα) (SMD = - 1.21; 95% CI - 2.15, - 0.26; p = 0.013), and malondialdehyde (MDA) (SMD = - 2.15; 95% CI - 3.37, - 0.93, p < 0.001) levels, and significantly improves total antioxidant capacity (TAC) (SMD = 2.28; 95% CI 1.29, 3.27, p < 0.001), glutathione peroxidase (GPx) (SMD = 1.23, 95% CI 0.25, 2.22; p = 0.014) and superoxide dismutase (SOD) (SMD = 2.05; 95% CI 1.22, 2.88, p < 0.001) levels. However, no significant reduction was found in interleukin 6 (IL-6) levels (SMD = - 1.13; 95% CI - 2.72, 0.46, p = 0.162).

conclusionN. sativa supplementation had beneficial effects on CRP, TNF-α, MDA, SOD, GPx, and TAC. Thus, Nigella sativa can be recommended as an adjuvant anti-oxidant agent and anti-inflammatory.

Indexed as

Nigella sativaAntioxidantsBiomarkersC-Reactive ProteinDietary SupplementsHumansInflammationOxidative StressRandomized Controlled Trials as TopicSuperoxide DismutaseAntioxidantsBiomarkersC-Reactive ProteinSuperoxide DismutaseInflammationNigella sativaOxidative stressTumor necrosis factor-α meta-analysis

Identifiers

PMID37036558

What Socratic 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 Socratic graph.