\sˌiːˈe͡ɪt͡ʃ fˈɪfti], \sˌiːˈeɪtʃ fˈɪfti], \s_ˌiː__ˈeɪ_tʃ__ f_ˈɪ_f_t_i]\
Definitions of CH(50)
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Usual screening assay for complement. Dilutions of the serum to be tested are added to antibody-coated erythrocytes and the percentage of lysis is measured. The values are expressed by CH50, hemolytic complement units per milliliter, which is the dilution of serum required to lyse 50 percent of the erythrocytes in the assay.
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- NERVE FACTOR first a series neurotrophic factors that were found to influence differentiation sympathetic and sensory neurons. It is comprised of alpha, beta, gamma subunits. The beta subunit responsible for its growth stimulating activity.