The invention concerns antigens for the production of antibodies to Platelet Activating Factor (PAF). The antigens are PAF analogues of formula (I) ##STR1## wherein X comprises a high molecular weight group, R.sup.1 is a linking group and R.sup.2 to R.sup.5 are selected from C.sub.1 to C.sub.6 alkyl. Other aspects of the invention include PAF-antibodies produced using said antigens, labelled PAF analogues, intermediates for the preparation of PAF analogues and methods and a kit for the immunoassay of PAF.
本发明涉及用于生产抗血小板活化因子(PAF)
抗体的抗原。该抗原是公式(I)的PAF类似物
##STR1##
其中X包含高分子量基团,R1是连接基团,R2至R5选择自C1至C6烷基。本发明的其他方面包括使用上述抗原制备的PAF
抗体,标记的PAF类似物,制备PAF类似物的中间体,以及用于PAF免疫测定的方法和试剂盒。