As a secondary metabolite, the synthesis of algal toxin may be considered as an inhibition or rejection response to other phytoplanktons in the competition among communities and species.
Objective to analyze the long term effect of botulinum toxin a (Btx-A) in cervical dystonia and to discuss the incidence and mechanisms of secondary non-responsiveness.
目的研究肉毒毒素a治疗颈部肌张力障碍的长期疗效，探讨继发性无应答现象的发生率及相关机制。
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Abstract : Zearalenone (ZEA), an estrogen toxin produced by some fungal species of the genera Fusarium, is a kind of secondary metabolite.