Objective:To investigate the correlation between the expression types of platelet membrane glycoprotein antibodies and the treatment outcomes in children with immune thrombocytopenia(ITP).Methods:Clinical data of 73 children with ITP who were treated with gamma globulin and glucocorticoid in our hospital from Nov 2020 to Feb 2022 was retrospectively analyzed.The therapeutic efficacy was compared among children with different characteristics and antibody expression types.Multivariable logistic regression analysis was used to analyze the influencing factors of therapeutic efficacy.Results:There was no statistically significant difference in therapeutic efficacy among children with different ages,genders,with or without history of preceding infections,or bleeding manifestations(P＞0.05).However,significant differences in efficacy were found among children with different antibody expression types(P=0.001).Logistic regression analysis showed that double-positive antibodies of anti-GPⅡb/Ⅲa antibody and anti-GPⅠb/Ⅳ antibody was a factor affecting therapeutic efficacy(OR=0.061,95%CI:0.006-0.606,P＜0.05).Conclusion:Compared to double antibody negativity,double antibody positivity can significantly reduce the treatment efficacy in ITP children,and the efficacy of positive anti-GP Ⅱb/Ⅲ a and anti-GPⅠb/Ⅳ antibodies is similar to that of double antibody negativity.

Objective:To investigate the correlation between the expression types of platelet membrane glycoprotein antibodies and the treatment outcomes in children with immune thrombocytopenia(ITP).Methods:Clinical data of 73 children with ITP who were treated with gamma globulin and glucocorticoid in our hospital from Nov 2020 to Feb 2022 was retrospectively analyzed.The therapeutic efficacy was compared among children with different characteristics and antibody expression types.Multivariable logistic regression analysis was used to analyze the influencing factors of therapeutic efficacy.Results:There was no statistically significant difference in therapeutic efficacy among children with different ages,genders,with or without history of preceding infections,or bleeding manifestations(P＞0.05).However,significant differences in efficacy were found among children with different antibody expression types(P=0.001).Logistic regression analysis showed that double-positive antibodies of anti-GPⅡb/Ⅲa antibody and anti-GPⅠb/Ⅳ antibody was a factor affecting therapeutic efficacy(OR=0.061,95%CI:0.006-0.606,P＜0.05).Conclusion:Compared to double antibody negativity,double antibody positivity can significantly reduce the treatment efficacy in ITP children,and the efficacy of positive anti-GP Ⅱb/Ⅲ a and anti-GPⅠb/Ⅳ antibodies is similar to that of double antibody negativity.

OBJECTIVE:To evaluate the rationality and validity of chemical medicine tablet production equipment cleaning pro-cedure. METHODS:Among several chemical medicines prepared by similar production technology as Metoprolol succinate sus-tained-release tablets,Captopril tablets,Isosorbide mononitrate tablet and Metformin hydrochloride tablet,Metoprolol succinate sus-tained-release tablets had strongest toxicity and were included in validation test. The production equipment was cleaned and disinfect-ed according to cleaning procedure. The point which was most difficult to clean could be wiped and sampled by using the cotton swab method. The detection limit and the limit of quantitation of the residue limits were verified as well as the recovery rate of wip-ing,in order to evaluate whether the results meet the requirements. RESULTS:The cotton swab method is adopted to wipe sample and detect the point which is most difficult to clean. The visible foreign body has not been found in each sampling point. The amount of residual drug is <29.75 μg/cotton bud,and microbial limits are <50 CFU/cotton bud,indicating test items are in line with the standard. CONCLUSIONS:The cleaning method can effectively clean the production equipment,and can effectively pre-vent product contamination and cross contamination to ensure the quality,efficacy and safety of the next batch of products.