Abstract
Background: Pandan Anggur plant is an endemic plant of the Papua archipelago in Indonesia, and the fruit called Pandan Anggur Fruit (PAF) is freshly consumed or prepared as a juice. Based on previous studies on the phytochemical content of PAF, the ethanol and water extract contain flavonoids, which act as immunomodulators, to regulate the response of immunity. Objectives: This study aimed to examine the potential of PAF as an immunomodulator in malnutrition cases, by evaluating six parameters which are phagocytosis capacity and nitric oxide (NO) production of peritoneal macrophage, spleen lymphocyte proliferation, IFN-γ and IL-4 in lymphocyte culture, and intestinal sIgA levels. By proving the potential of PAF as an immunomodulator, this research will lead to significant development of functional food products of Pandan Anggur. Methods: A total of 35 Sprague Dawley rats were used as animal models divided into seven different groups named standard group (healthy standard), malnourished (negative control), malnourished rats given Imboost Force (positive control), as well as PAF ethanol extract doses of I, II, III, and PAF water extract. The treatment lasted for seven weeks in total and the measurement of immunomodulator parameters was carried out at the end of the treatment period. The immunomodulator parameters included phagocytosis capacity and nitric oxide (NO) production of peritoneal macrophage, spleen lymphocyte proliferation, IFN-γ and IL-4 in lymphocyte culture, and intestinal sIgA levels. Result: The results indicated that the administration of PAF ethanol extract at a dose of 3.15 mg/mL provided an optimum immunostimulant effect, by increasing the macrophage phagocytosis capacity, nitric oxide, lymphocyte proliferation, IL-4, and sIgA levels in rat intestine. However, increasing the dose of extract did not produce a better effect, but led to suppression of immunity. Conclusion: PAF extract at a dose of 3.15 mg/mL provides an immunostimulant effect. Keywords: In Vivo, IL-4, IF-γ, sIgA, lymphocyte proliferation, macrophage, Pandan Anggur Fruit
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