| abstract |
The present invention provides a novel PAF receptor antagonist that can be prepared inexpensively, in large quantities, and simply, and bronchial asthma, osteoporosis, and / or containing such a novel PAF receptor antagonist Alternatively, providing a composition for the treatment and / or prevention of anaphylaxis. The present inventor has found that seafood extracts such as squid edible part, bonito testis and bonito ovary contain substances having PAF receptor antagonistic activity. And this inventor solved the said subject by providing these extracts. [Selection figure] None |