This article introduces the current status of Chinese institutes for medical devices testing, and analyses the misunderstanding in extending the testing capacities for the provincial institutes for medical devices. Then, some suggestions are given to orientate themselves in extending capacities. Finally, these specific procedures on extending the testing capacities are presented.
China ; Equipment and Supplies ; standards

Objective:To analyze the levels of immune cytokine in peripheral blood(PB) and the expressions of immune related transcription factors in placenta cytotrophoblast,which in patients with pregnancy-induced hypertension(PIH).And to explore the effect of fetal-maternal immune tolerance on pregnancy-induced hypertension.Methods:50 cases patients with PIH were selected as the observation group,and 40 healthy people were chosen as the control group.Enzyme-linked immunoassay(ELISA) was performed to detect the levels of IFN-γ,IL-4,IL-17 and TGF-β in peripheral blood.Quantitative Real-time PCR(RT-qPCR) and Western blot were used to analyze the mRNA expressions and protein levels of T-bet,GATA-3,RORC and Foxp3 in placenta cytotrophoblast,respectively.Results:①Compared with the control group,the IFN-γ and IL-17 levels in peripheral blood in the observation group were obviously higher and the TGF-β level was greatly lower(P<0.05).There was no significant difference of IL-4 level between the two groups(P>0.05),but the ratios of IFN-γ/ IL-4 and IL-17/TGF-β in the observation group were larger than that in the control group(P<0.05).②Compared with the control group,the mRNA expressios and protein levels of T-bet and RORC in the observation group were increased significantly(P<0.05),but that of GATA-3 and Foxp3 were decreased greatly(P<0.05).Thus,the ratios of T-bet/GATA-3 and RORC/Foxp3 in the observation group were significantly larger than that in the control group(P<0.05).Conclusion:PIH is occurred with the imbalance of Th1/Th2 and Th17/Treg,and it might be associated with the mechanism of fetal-maternal immune tolerance disorder that induced by Th cells.

ObjectiveTo analyze the efficacy and safety of erythropoietin for anemia in patients with chronic heart failure.Methods66 cases with chronic heart failure were randomly divided into the observation group and the control group.The control group was treated with conventional anti-anemia iron treatment,and the observation group was taken erythropoietin therapy treatment on the basis of the control group.Both of the two groups were treated for 8 weeks continuously.ResultsThere were statistically significant differences between the two groups of patients after 8 weeks of treatment,cardiac function had improvement after treatment than before treatment (P ＜ 0.05 ).The observation group was significantly superior than the control group.The blood data in the two groups were compared,the Hb,RBC of the observation group were significantly increased compared with before treatment,the difference was significant (P ＜ 0.05).The RBC level did not change significantly in the control group before and after treatment.The electronic patient data in the two groups were compared,the LVEF,FS in the observation group and control group improved significantly compared with before treatment,but improvement of the observation group was significantly better than control group.The degree of improvement in the two groups were compared,the difference was significant( P ＜0.05).The SV,CO in the two groups were compared,it increasedsignificantly than before treatment,the difference was significant(P ＜ 0.05).The SV,CO before and after treatment in the control group didn't improve significantly.The E/A before and after treatment didn't improve significantly.The incidence of adverse drug reactions in the two groups showed no significant difference.ConclusionThe level of anemia had a direct impact on the degree of heart function classification.Following the usual treatment of heart failure,taking erythropoietin for anemia in patients with chronic heart treatment could significantly improve the treatment of patients with curative effect,with the advantages of safe,widely used for clinical application.

Noninfectious diarrhea is a kind of digestive disease caused by many factors and the main clinical features are increased frequency of defecation and change of character of stool,most of the patients have intestinal microecological imbalance. Improving the intestinal microecological balance is very important in the treatment of noninfectious diarrhea. Microbial ecological agent(MEA)has definite efficacy for the treatment of noninfectious diarrhea,and gradually becomes the commonly used drug for noninfectious diarrhea in clinical practice. This article reviewed the use of MEA in the treatment of noninfectious diarrhea.

Objective To explore effect on the proliferation and apoptosis of Hela cells in vitro by using vascular endothelial growth factor-C(VEGF-C) antisense oligonucleotides (ASODN). Methods VEGF-C ASODN was transfected into Hela cells by liposome-mediated; the cells transfected with the oligodeoxynuclecotide (SODN) and saline were used as control groups. The efficiency of transfection was detected by fluorescence microscope. The inhibitive rate of cell growth was detected with MTT methods. Apoptosis and cell cycle were evaluated using FCM. The mRNA expression of VEGF-C was determined by RT-PCR, and the expression of VEGF-C was determined by western blotting. Results VEGF-C ASODN had been transfected into Hela cells by liposome-mediated. The index of apoptosis after transfection 48 h was (19.39±1.81)%. G2/M phase cell increased after transfection, meanwhile the expression of VEGF-C degraded on the level of mRNA and protein (P<0.05). Conclusion Transfeeted with VEGF-C ASODN could down-regulate the expression of VEGF on the level of mRNA and protein, block the cell circle, inhibit cell proliferation and induce apoptosis in Hela cells in vitro.

In this paper,we summarized nursing care of 9 patients with cytokine release syndrome after receiving the chimeric antigen receptor T cells immunotherapy.Key points of nursing care were as follows:comfortable and effective antipyresis,preventive rehydration,multiple methods of blood oxygen saturation improvement,iatrogenic pressure ulcer prevention,frequent vital signs monitor,close observation of level of cytokine and inflammatory factors,timely and accurate medication,formulating personalized nursing plan according to patients' condition,close collaboration between doctors and nurses.At last,8 patients recovered and were discharged,and 1 case died due to multiple organ dysfunction syndrome.

Objective To investigate the effects of oral calcium and active vitamin D on bone mineral density and balance function in senile osteoporosis patients.Methods A prospective casecontrol study was conducted on 216 senile osteoporosis patients who met the inclusion criteria.Patients were given oral calcium and active vitamin D for 12 months.The data values of BMD,balance function,falls incidence and bone pain were compared before versus 6 and 12 months after treatment.Results There were significant differences in BMD of lumbar vertebrae and femur neck,static balance function assessed by the single-leg stance timed tests with closed eyes,dynamic balance function assessed by the Star Excursion Balance Test(SEBT) in directions of east,southeast,south and southwest(all P＜0.05).The incidence of falls was decreased 12 months after treatment as compared with pre-treatment(5.6％ vs.12.5％).The bone pain had no significant difference before versus after treatment(P＞0.05).Conclusions Oral calcium and active vitamin D could increase BMD,improve the balance function and decrease the risk of falls in senile osteoporosis patients.However,it has no significant improvement on bone pain within a short period.

Objective To explore the prevalence of anxiety, depression, loneliness in elderly patients with long- term hospitalization, its coping style and the correlation between them. Methods 48 hospitalized elderly patients with long- term hospitalization were investigated by Standard Scale and self- administrated questionnaire, the Pearson's correlation was used to find the correlation. Results It was concluded that anxiety, depression and other negative emotions were commonly seen in elderly patients with long term hospitalization, these patients usually adopt the avoidance and yield coping style as well,and there was a positive correlation between them, the r value was 0.438, 1.473 amd 0.501 respectively. Conclusions This research confirmed the possibility of negative emotion in elderly patients with large long- term hospitalization, but also closely related to the choice of coping styles. The nursing staff should closely observe and assess the psychological status of elderly patients, planned, targeted to help elderly patients use more positive coping style.

Objective To explore the influence of corporate governance at public hospitals on their nature of public welfare,in order to provide reference for promoting the reform of public hospital corporate governance.Methods Hypotheses of such impacts were raised by means of literature review. 460 questionnaires were collected from site survey,and four factors of public hospital corporate governance were used as independent variables,and five factors of the public welfare performance as dependent variables,for a correlation analysis and multiple linear regression analysis.Results A clear correlation is found among medical service level,and decision-making mechanism,the mechanism of key employees recruit/evaluation/incentive and their constraints (P < 0.05 ).Completion status of public health services is significantly correlated with the mechanism of recruit/evaluation/incentive and constraint,and their supervision mechanism as well(P <0.05).Medical technology level and cost of medical services are significantly correlated with decision-making mechanism.Conclusions In consideration of public hospital corporate governance,such mechanisms as decision-making,supervision,recruit,evaluation,incentive and constraint for key employees play a key role for public welfare performance.It is recommended to promote the hospital corporate governance reform from the above aspects.

Purpose:The current study analyzed the polymorp hisms of DNA repair gene XRCC1 and relationship between genetic variations and s usceptibility to lung cancer Methods:A case-control study of 111 patients with lung cancer a nd 210 normal residents as controls was conducted to detect XRCC1 polymorphisms at Arg399Gln loci . Genotypes were analyzed by PCR-based restriction fragment le ngth polymorphism(RLFP) techniques. Results:XRCC1 codon 399 heterozygous genotype Arg/Gln might hav e weaker protection effect on squamous cell carcinoma and reduce the risk of lun g cancer on smokers. Homozygous genotype Gln/Gln of XRCC1 codon 399 might increa se the risk of lung cancer and have synergistic effect with smoking. Conclusions:The results demonstrated that genetic polymorphism of XRCC1 DNA repair gene might contribute to the susceptibility to lung cancer a nd have synergistic effect with smoking.