Immune stimulatory effect of Nigella sativa in healthy animal models: A systematic review and meta-analysis

Alsalahi, Abdulsamad and Maarof, Nian N.N. and Alshawsh, Mohammed A. and Aljaberi, Musheer A. and Qasem, Mousa A. and Mahuob, Abdulaleem and Badroon, Nassrin A. and Mussa, Ebthag A.M. and Hamat, Rukman A. and Abdallah, Atiyah M. (2024) Immune stimulatory effect of Nigella sativa in healthy animal models: A systematic review and meta-analysis. Heliyon, 10 (6). e27390. ISSN 2405-8440, DOI https://doi.org/10.1016/j.heliyon.2024.e27390.

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Official URL: https://doi.org/10.1016/j.heliyon.2024.e27390

Abstract

The immune-modulatory effects of black seeds (Nigella sativa seeds, NSS) are well documented, but the overall in vivo impact of this important natural medicinal product on immune system function has yet to be established. Here we systematically reviewed and meta-analyzed the effects of NSS on humoral serum titers of immunoglobulins including IgG, IgM, anti -Newcastle virus disease (anti-NDV), and sheep red blood cell antigen (anti-SRBC)] and cellular immunity total white blood cell (WBC) count and percentages of monocytes, lymphocytes, basophils, neutrophils, and eosinophils] in healthy animals. The PubMed, ScienceDirect, Web of Science, and Scopus databases were searched according to predefined eligibility criteria. Meta-analyses were performed to estimate the final effect size using RevMan software. Seventeen animal studies were eligible for analysis. For humoral immunity, the overall pooled effect size (ES) of NSS on serum titers of IgM and anti-NVD antibodies was not significantly different mean difference (MD) 75.27, 95% CI: -44.76 to 195.30, p = 0.22 (I2 = 89%, p = 0.003), and -0.01, 95% CI: -0.27 to 0.25, p = 0.94 (I2 = 74%, p = 0.02), respectively]. However, NSS significantly increased serum titers of IgG and anti-SRBC antibodies MD 3.30, 95% CI: 2.27 to 4.32, p = 0.00001 (I2 = 0%, p = 0.97), and 1.15, 95% CI: 0.74 to 1.56, p = 0.00001 (I2 = 0%, p = 0.43), respectively]. For cellular immunity, the ES of NSS on WBCs, monocytes, and lymphocytes were not significantly different MD 0.29, 95% CI: -0.55 to 1.13, p = 0.50, (I2 = 14%, p = 0.32), - 0.01, 95% CI: -0.45 to 0.44, p = 0.97 (I2 = 0%, p = 0.77), and 4.73, 95% CI: -7.13 to 16.59,p= 0.43, (I2 = 99%, p = 0.00001), respectively]. In conclusion, black seeds enhance humoral immunity in healthy animals but do not affect cellular immunity.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Immunity; Cellular; Humeral; Thymoquinone; Nigella sativa; Black seeds; Black cumin; Meta -analysis
Subjects: R Medicine
R Medicine > RS Pharmacy and materia medica
Divisions: Faculty of Medicine
Faculty of Pharmacy
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Oct 2024 07:01
Last Modified: 16 Oct 2024 07:01
URI: http://eprints.um.edu.my/id/eprint/45392

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