OBJECTIVE:To investigate the characteristics and regularity of pediatric adverse drug reactions(ADR)in our hos-pital in order to promote rational drug use of children. METHODS:In retrospective study,378 pediatric ADR cases collected from our hospital during 2010-2014 were analyzed statistically. RESULTS:Among 378 pediatric ADR cases,255 cases were male (67.46%),and 123 cases were female (32.54%);the incidence of ADR in patients aged from one year to three years were the highest (27.51%);most of the cases were induced by intravenous injection,accounting for 87.57%(331 cases);sterile powder for injection was main dosage form (236 cases,62.43%) anti-infective agents were the major cause of ADR in respect of drug types (50.26%),among which cephalothin ranked the first place(43.68%);the lesion of skin and its appendants were the most common clinical manifestation of ADR(56.35%),such as erythra and pruritus. And most of the cases were cured(64.29%)or im-proved(34.66%)after treatment. CONCLUSIONS:The occurrence of ADR are related to multiple factors,such as administration route and drug varieties. Great importance should be attached to indication,route of adiminstration,method,speed and so on,in order to promote rational drug use and reduce the occurrence of ADR.

OBJECTIVE:To evaluate the clinical efficacy of liraglutide and insulin glargine in the treatment of type 2 diabetes mellitus (T2DM) and conduct pharmacoeconomic analysis, and to provide economical and reasonable T2DM treatment plan. METHODS:80 T2DM patients were randomized into liraglutide group and insulin glargine group,with 40 cases in each group. Both groups were given Metformin hydrochloride sustained-release tablet orally 0.5-2.0 g/d,and diabetes mellitus diet and sport training guide after oral antidiabetic drug withdrawal of previous treatment plan. Liraglutide group was given Liraglutide injection hypodermically,0.6-1.2 mg,qd;insulin glargine group was given insulin glargine hypodermically at 22 o’clock,initial dose of 0.2 IU/(kg·d),adjusted according to the levels of PG,FBG,nocturnal blood glucose level till FBG≤7 mmo1/L and 2 h PG ≤10 mmol/L in both group. Treatment course of 2 groups lasted for 12 weeks. The changes of FBG,2 h PG,HbA1c and BMI were ob-served in 2 groups before and after treatment. 2 therapy plans were evaluated and compared by cost-minimization analysis. RE-SULTS:After treatment,the levels of FBG,2 h PG and HbA1c decreased significantly in 2 groups,compared to before treatment, with statistical significance (P<0.05),but there was no statistical significant difference between 2 groups (P>0.05). After treat-ment,BMI of liraglutide group decreased significantly compared with before treatment and insulin glargine group,with statistical significance (P<0.05). There was no statistical significant difference in BMI of insulin glargine group before and after treatment (P>0.05). Cost-minimization analysis showed that the cost of insulin glargine group in reducing FBG,2 h PG and HbA1c were less than liraglutide group,but were more than liraglutide group in reducing BMI. Sensitivity analysis demonstrated the stability and reliability of cost-minimization analysis. CONCLUSIONS:Lira-glutide and insulin glargine have the same clinical efficacy,but insulin glargine need lower cost in blood glucose control,and liraglutide is better therapy plan for body weight control.

Objective: To investigate the surgical approaches and therapeutic effect by utilizing Keystone perforator island flap in repairing sacroiliac decubital necrosis. Methods: From June 20013 to June 2016, 12 patients ( 8 males, 4 females; aged 35-83 years; raw surface 6.4cm×4cm-17cm×14cm) with Sacroiliac Decubital Necrosis underwent reconstructive operations by Keystone perforator island flap. Results: 16 flaps completely survived, without redundant tissues, and any signs of infection and introcession, no necrosis were noted, all appearances present satisfactory. Conclusions Superior Gluteal Perforator Arteries that provide blood supply are sufficient in Keystone perforator island flap , as they are anatomically fixed, few variations, nutrition skin and subcutaneous in large scope, The curative effect of Keystone design perforator island flap in repairing sacroiliac decubital necrosis was satisfactory.

ObjectiveTo investigate the induction of ferroptosis by polyphyllin Ⅱ （PPⅡ） in hepatocellular carcinoma HepG2 cells and its underlying mechanism. MethodThe effect of PPⅡ （0， 1.5， 3.0， 4.5， 6.0， 9.0， 18.0 mg·L^-1） on the in vitro proliferation of HepG2 cells was assessed using the methyl thiazolyl tetrazolium （MTT） assay. Colony formation ability of HepG2 cells was evaluated through a colony formation assay. Cell migration ability was assessed via a scratch assay. Lactate dehydrogenase （LDH） content in HepG2 cells was measured using a kit. Reactive oxygen species （ROS） levels in HepG2 cells were observed using a fluorescence inverted microscope. Malondialdehyde （MDA）， glutathione （GSH）， and free Fe²⁺ content in HepG2 cells were detected using respective kits. The mitochondrial ultrastructure in HepG2 cells was observed by transmission electron microscopy. The expression of ferroptosis-related proteins p53， solute carrier family 7 member 11 （SLC7A11）， glutathione peroxidase 4 （GPX4）， long-chain acyl-CoA synthetase 4 （ACSL4）， and transferrin receptor 1 （TFR1） in HepG2 cells was detected using Western blot. ResultCompared with the control group， the PPⅡ treatment groups showed significantly decreased survival rate of HepG2 cells in a dose-dependent manner （P<0.01）， significantly reduced number of cell colonies （P<0.01）， significantly shortened scratch healing distance， inverse correlation of the migration distance with drug concentration （P<0.01）， significantly increased LDH leakage in cells （P<0.01）， significantly enhanced relative fluorescence intensity of intracellular ROS， and significantly increased accumulation of lipid peroxide MDA （P<0.01）， decreased intracellular GSH content with increasing drug concentration （P<0.01）， and significantly enhanced fluorescence intensity of FeRhoNox-1 in cells （P<0.01）. Moreover， cells exhibited vacuolation， and mitochondria showed significant shrinkage with reduced or even disappeared cristae. Compared with the results in the control group， the expression of p53， ACSL4， and TFR1 proteins significantly increased， while the expression of SLC7A11 and GPX4 proteins significantly decreased in the PPⅡ treatment groups （P<0.05）. ConclusionIn summary， PPⅡ induces ferroptosis in HepG2 cells by regulating the p53/SLC7A11/GPX4 signaling axis， promoting ACSL4 expression and Fe³⁺ uptake， leading to an imbalance in the antioxidant system.