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. 2014 Spring;7(2):108–117.

Figure 5.

Figure 5

Results of antibody isotyping. Sera were collected 2 weeks after the last immunization and serial dilutions of sera from 1/100 to 1/204800 were used. A) Significant decrease in IgG1 titer appeared to be in order of: HBV vaccine ∼ HBV vaccine plus 2.5µg of melittin > HBV vaccine plus 5µg or 10µg melittin (∼ means no significant difference). B) Immunization of mice with HBV vaccine plus 2.5µg, 5µg, or 10µg melittin decreased IgG2a titer in comparison to HBV vaccine-immunized group. The significant decrease in IgG2a titer appeared to be in order of: HBV vaccine > HBV vaccine plus 2.5µg melittin > HBV vaccine plus10µg melittin > HBV vaccine plus 5 µg melittin. C) IgG2b titer was not significantly different among HBV vaccine plus 2.5µg, 5µg, or 10µg melittin and HBV vaccine-immunized groups. D) Immunization of mice with HBV vaccine plus 10µg melittin significantly increased IgM titer in comparison to HBV vaccine-immunized group.