简介:摘要目的对三株牌歧特生冲剂进行小鼠精子畸形试验,以测定其是否具有遗传毒性。方法参照《保健食品检验与评价技术规范》(2003年版)中的试验方法。结果其一,样品剂量组与隐性对照组相比,无统计学意义,判为阴性;其二,样品剂量组与阴性对照组相比,精子畸形率至少为阴性对照组的倍量或经统计有显著意义,并有剂量反应关系,判为阳性;其三,样品剂量组与阴性对照组相比,有统计学意义,但无剂量反应关系,重复试验,结果能重复者判为阳性,否则为阴性。结论本试验条件下,受试样品剂量组的精子畸形率与阴性对照组(Veh)比较无显著性差异(P>0.05),无剂量反应关系,表明三株牌歧特生冲剂对小鼠精子的精子畸形率未产生明显影响。
简介:摘要Withtherapiddevelopmentofmedicalandpublichealthundertakings,thenursingcarequalityhastomeetmorestrictdemands.Studentpracticalnursesarethefutureofnursingcaredelivery,theybeartheresponsibilitiesofconsolidatingthought,developingabilitiesandpromotingprofessionalqualitiesduringtheirinternships.Clinicalpracticeisthemustprocessofintegratingtheorywithpractice,anditalsoisthepromotionandcontinuationofschooling.Teachingqualityhasdirectinfluenceonpracticequality.Howtoteachhasbecomeanewchallengeforus.