| Summary: | The beneficial immunomodulation effects of a biological response modifier glucan (BRMG) produced by two strains of Aureobasidium pullulans, AFO-202 and N-163, have already been reported. Herein, we compared their efficacy on immune-inflammatory parameters in Sprague Dawley (SD) rats. This study was performed on four groups of healthy SD rats, n=6 in each group: Group 1, euthanised on Day 0 for baseline values; Group 2, control (drinking water); Group 3, AFO-202 beta glucan, 200 mg/kg/day; and Group 4, N-163 beta glucan, 300 mg/kg/day. The neutrophil to lymphocyte ratio (NLR) decreased and leukocyte-to C-reactive protein ratio (LeCR) increased in Group 3 (AFO-202) at 15 and 29 days whereas the lymphocyte to C-reactive protein ratio (LCR) increased in group 4 (N-163), within the normal physiological range. These promising results warrant further investigations in larger numbers of healthy and diseased models to develop appropriate strategies for balancing immune system dysregulation.
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