ABSTRACT
Quality control of biotech drugs has attracted increasing attentions in recent years. Deamidation reaction is one of the major concerns in quality control of biotech drugs, due to the generation of isoaspartic acid(isoAsp) . This paper describes the deamidation of asparagine(Asn) residues and its effects on the biological drugs. The detection methods currently used in China and overeas for this reaction, including pretreatment protocols and instrumental analysis were described. The identification and determination of isoaspartyl sites were also described in detail, along with the positive impact on the development of biotech drugs in China by the studies on deamidation reactions.
ABSTRACT
Objective To investigate the Diane -35, femonston of missed abortion endometrial repair. Methods According to the different treatment methods will be January 2015 to March 2017 in the first affiliated hospital of Tianjin university of traditional Chinese medicine 60 cases of patients with missed abortion groups: control group with -35 treatment, the observation group with femonston treatment; detailed observation of the two groups patients with various treatment index (bleeding time, bleeding volume, postoperative day 21 endometrial thickness, the tide time, the tide period), the occurrence of adverse reactions, and the related data were analyzed. Results Femonston (observation group) in treatment of patients with missed abortion is better than - 35 (control group) treatment, patients with various treatment index than the control group, the incidence rate of adverse reaction was lower than the control group, the difference was statistically significant (P<0.05). Conclusion Femonston can effectively repair the endometrium of patients with missed abortion, and shorten the time with the tide, the tide of stable period it is worthy of widely used intervention in patients with missed abortion.