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  1. In Vitro Immunomodulatory Activity of Aqueous Quercus infectoria Gall Extract
    Wan-Nor-Amilah WAW, Syifaa'-Liyana ML, Azlina Y, Shafizol Z, Nurul AA
    Oman Med J, 2021 May;36(3):e265.
    PMID: 34113461 DOI: 10.5001/omj.2021.63
    Objectives: Our study reports the immunomodulatory potency of Quercus infectoria gall extract in vitro. The aqueous extract was prepared and examined for its effects on cell proliferation, phagocytic activity, nitric oxide (NO) production, and cytokine synthesis by murine macrophages.

    Methods: Proliferative, phagocytic activity, and NO production of extract-treated and control cells were studied using proliferative assay, flow cytometry, and Griess reaction, respectively. An enzyme-linked immunosorbent assay was performed to determine the levels of pro- and anti-inflammatory cytokines in the macrophage culture.

    Results: Treated macrophages had a higher proliferative rate and phagocytic activity compared to untreated macrophages. The cell treatment with an extract concentration of 64 μg/mL demonstrated a significant decrease in NO production (p < 0.001). An increase in cytokine levels (IL-2, IL-5, IL-10, IL-17A, IL-23, TGF-β1) was observed; however, this increase was not statistically significant.

    Conclusions: Our study suggests that gall extract possesses the potential for augmenting immunomodulatory activity by cellular mediated mechanism and could play a role in regulating the innate immune response.

  2. Fulltext A Scoping Review of the Prevalence of Fascioliasis in Malaysia and Risk Factors for Infection
    Najib MA, Izani NJN, Amilah WAWWN, Faez AM, Shafizol Z
    Malays J Med Sci, 2020 Feb;27(1):22-36.
    PMID: 32158342 MyJurnal DOI: 10.21315/mjms2020.27.1.3
    This review aimed to provide a comprehensive overview of ruminant and human fascioliasis in Malaysia and to identify research gaps in knowledge of the prevalence of fascioliasis in Malaysia and risk factors for the disease using available evidence-based data. We conducted a scoping review based on the framework of Arksey and O'Malley. The preferred reporting items for systematic reviews and meta-analyses were used to guide the review process. The citation search was performed between May and September 2018. Using specific keywords, literature published between 1998 to September 2018 was retrieved from electronic databases. Six articles related to fascioliasis in Malaysia were included in the final review from 1,932 screened articles and reports. Five studies focused on ruminants, including cattle, buffaloes, sheep and goats in the states of Terengganu and Perak. The most frequent ruminant fascioliasis outbreaks involved cattle and goats, with a prevalence of 82%-95% and these outbreaks occurred in Terengganu. Only one study examined the risk of fascioliasis in cattle. In the study, the age and sex of the cattle were important risk-related parameters. The search returned only one documented report of a suspected case of human fascioliasis with an atypical clinical presentation. At present, human fascioliasis in Malaysia remains under-reported and its prevalence remains unknown. The data summarised in this review based on existing evidence identifies research gaps on fascioliasis in ruminants and humans.
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