Polygalasaponin XXXI (Onjisaponin F) is an effective adjuvant for intranasal administration of influenza Influenza hemagglutinin (HA) vaccine to protect influenza virus infection. In Vitro Polygalasaponin XXXI (Onjisaponin F) also enhances anti-HA IgA and IgG Ab titers in the nasal wash, whereas Onjisaponins E and G enhances only anti-HA IgA Ab titer significantly. Polygalasaponin XXXI can induce protective immunity against intranasal infection by influenza virus. Polygalasaponin XXXI (Onjisaponin F) (1 or 10 µg/mL) also induces ChAT mRNA level in rat basal forebrain cells. MCE has not independently confirmed the accuracy of these methods. They are for reference only. In Vivo Intranasal vaccination with Polygalasaponin XXXI (Onjisaponin F) inhibits proliferation of mouse adapted influenza virus A/PR/8/34 in bronchoalveolar lavages of infected mice . MCE has not independently confirmed the accuracy of these methods. They are for reference only. Form:Solid