Objective To study the relation between copper,copper-zinc ratio in blood and blood-fat only in the copper intake lower than the normal acceptable daily intake,and to provide a unified dosage evidence for copper multi-ways exposure.Methods Forty-two SD rats were divided into 7 groups randomly.The rats in one group among them as the normal control group were fed on the normal fodder and water,the other 6 groups were fed on special fodder without copper and deionized water and i.g.copper gluconate at doses of 0ADI(the acceptable daily intake of rat),1/625ADI(0.000 128 mg/ml),1/125ADI(0.000 64 mg/ml),1/25ADI(0.003 2 mg/ml),1/5ADI(0.016 mg/ml) and ADI(0.8 mg/ml),for 30 days.The activity of ceruloplasmin(CP),the content of copper,zinc in the blood and the level of total cholesterol(TC),triglyceride(TG),high-density lipoprotein(HDL) and low density-lipoprotein(LDL) were determined.Results In the case of copper intake lower than the normal acceptable daily intake,the activity of CP in the blood of all treated rats were lower than the normal level(P

Objective To explore the application and assess the cosmetic effect of mammaplasty with volume-displacement technique(VDT)following breast conserving surgery.Methods Breast conservation therapy(BCT) was performed in 77 patients of early breast cancer(EBC).Of the patients,42 cases received oncoplastic VDT (onco-plastic group)and 35 cases had only direct skin closure without treatment of the postresection defect (regular group) following BCT.The cosmetic results of the two groups were evaluated after operation and radiotherapy,respectively. Results All patients were followed up for 1 -36 months with median follow -up of 22.3 months,and no recurrence or metastasis occurred in one of the patients.1 month after surgery,the excellent or good cosmetic outcome were achieved in 31 cases (73.81%)in oncoplastic group and 17 cases (48.57%)in regular group respectively,and there was statistical difference between the two groups (χ2 =5.442,P =0.021);1 month after radiotherapy,the cos-metic excellent or good result were obtained in 27 cases (64.29%)in oncoplastic group and 6 cases (17.14%)in regular group respectively,and the difference between the two groups reached statistical significance (χ2 =9.045,P =0.008).Conclusion VDT can improve the cosmetic effect of mammaplasty following BCT in EBC and does not affect curative effect,it is worthy of promoting.