目的：探讨改变剂型后的A型肉毒杆菌毒素（BTXA）的生物活性是否存在，并对其去神经支配作用进行定量分析。

Aim: To ascertain the bioactivity and to analyse quantificationally the denervating action of botulinum toxin A(BTXA) in gel.

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本研究所长期从事黄曲霉毒素生物去毒转化的研究，筛选到一株产黄曲霉毒素解毒酶的菌株E-20。

Objective: Our institute has screened an enzyme capable of detoxifying AFB1, named Aflatoxin-detoxifizyme (ADTZ), from the E-20 strain.

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