OBJECTIVE: To provide reference for the establishment of system about remaining drugs reclaimed by designated drugstores.METHODS: The distribution characteristics and professional service of drugstores in China were analyzed as well as the drugs reclaiming in recent years.The system about designated drugstores reclaiming drugs was designed.RESULTS & CONCLUSIONS: Designated drugstores network should be established according to the principle of convenience and professional standards.The surplus drugs of households should be reclaimed by designated drugstores for free and disposed by special agency.The cost-sharing system should be established and education of drugs reclaiming should be carried out to promote continuous implementation of drugs reclaiming system.

Objective To study the imaging characteristics of osteosarcoma.Methods 35 patients with osteosarcoma proved pathologically were examined by radiography,of them 25 cases were examined with CT scan or MRI,and 8 cases undergone contrast-enhanced MRI.The imaging features of osteosarcoma were analysed comparatively with that of pathology.Results The lesions localized at distal part of femur in 17 cases and proximal part of tibia in 8 cases,that were most location of this tumor.The imaging characteristics of osteosarcoma included bone destruction,neoplastic bone,periosteal reaction and soft-tissue mass,in some cases,epiphyseal plate and epiphysis were involved,even the joint face and the opposite osseous of joint(skip lesions).On enhanced MR scanning,the margin of tumor was enhanced in early and the center of tumor was delayed enhancement.CT could showed "sieve sign"and small neoplastic bone.Conclusion Osteosarcoma has certain imaging characteristics;X-ray examination is the first choice in diagnosing osteosarcoma,CT and MR could provide much more comprehensive imaging information for clinic.

Objective To explore the safety, therapeutic-effect-evaluating standards and clinical value of the interventional treatment used as preoperative chemotherapeutic embolism of pelvic tumors and palliative treatment of the patient unsuitable for surgery. Methods Twenty-nine cases of pelvic tumors with complete materials were selected from the cases treated by Seldinger’s interventional techniques from March 1997 to March 2002 and comprehensively analyzed. Results After the chemotherapeutic embolism, most of the arterial supply to the tumors were blocked off; the tumor stains were decreased by more than 75 %; the intra-operating bleeding ranged from 820 to 1530 ml and averaged 1220 ml; the surgical removals were successful. The pathological examinations of the postoperative specimens showed that the necrostic rate of tumor ranged 91%～98%; the remission rate of painful symptoms reached 100%. No severe complications were found in this series.Conclusion The interventional treatment of pelvic tumors is safe, reliable and simple in operation, and can reduce the intra-operative bleeding and improve the successful rate of the surgery. It is regarded not only as the effective auxiliary therapy before surgical removal, but also as the first-selected method for the palliative treatment of the patient unsuitable for the surgery.

Objective To evaluate emergency nursing methods to permanent pacemaker patients with severe complication and acute hemodynamic changes during implantation. Methods The emergency nursing methods were analyzed retrospectively in 9 of 2 027 patients over 6 years, who had serious complication occurred during the pacemaker implantation Results There were 4 patients with pneumothorax, 2 with pericardial tamponed, 1 with ventricular fibrillation and 2 with acute left ventricular failure in 9 patients (0.4%). Observed the changes of symptoms and signs carefully,found the severe complications at the first time and performed the specific nursing based on different kinds of conditions and improved the prognosis of these patients. Conclusions The serious complications during the implantation of permanent pacemaker were life-threatening, and the specific nursing scheme to different types of complications could increase the successful rate of emergency service.

Objective To explore the effects of low-dose mifepristone on human granulosa cells and the molecular mechanism of its inhibiting or delaying ovulation.Methods Phase contrast microscopy and electron microscopy were conducted to observe the morphological and biochemical change of granulosa cells exposed to various doses of mifepristone for 24 hours(the final concentrations of mifepristone were respectively 2.5?mol/L,5?mol/L and 10?mol/L,Non-mifepristone as the control group).Immunocytochemistry was performed to detect the protein expressions of Bcl-2 and Bax in granulosa cells exposed to various doses of mifepristone for 24 hours.The mRNA levels of Bcl-2 and Bax in granulosa cells were detected by RT-PCR.Results Granulosa cells treated with various doses of mifepristone presented typical morphological characteristics of apoptosis such as condensation of chromatin and cytosolic,and shrink of cells.The expression of Bcl-2 protein might be down-regulated,while the expression of Bax might be up-regulated by mifepristone.The histological score(HSCORE) of Bcl-2 protein in granulosa cells,which were incubated with various doses of mifepristone(2.5?mol/L,5?mol/L,10?mol/L) for 24 hours,were respectively 2.15?0.16,1.88?0.13 and 1.64?0.16 respectively,Compared with the HSCORE of the control group(2.51?0.16),the difference was significant(P0.05).Conclusion Mifepristone could induce human granulosa cells apoptosis.The Bcl-2 protein and Bax protein may be involved in the apoptosis of granulosa cells induced by mifepristone.

Objective The purpose of this study was to explore the effect of nursing intervention on xerostomia in patient with AIDS. Methods From October 2010 to April 2012, nursing interventions were administered in 53 AIDS patients with xerostomia during treatment. The self-designed evaluation form was used to evaluate the oral dryness of patients before and after nursing intervention. Results There were significant changes on oral dryness of patients before and after nursing invention ( < 0.01) . There was a progressive decrease in the occurrence degree of oral dryness from level 0 to level 4. The number of patients decreased by 11.4%in level 4, but increased by 9.4% in level 0. There was a positive correlation between the intervention time and treatment effect. Establishment of an effective oral care hygiene behavior intervention could help patients create a healthy lifestyle. Conclusion Nursing intervention is important to relieving xerostomia of AIDS patients.

Objective To explore medical equipment support in actual combat training to improve mobile medical unit in medical service support.Methods Combined with the characteristics of actual combat training,the problems and difficulty of medical equipment support were discussed in actual combat training.Results Some measures were put forward for medical equipment support such as cherishing of medical serviceman on equipment,equipment quality control and maintenance beforeutilization,effective protection and fixation,minimization of influence of instable power supply and plan preparation for loading and transport.Conclusion The study on medical equipment support in actual combat training contributes to enhancing medical support ability of mobile medical unit.

Objective To explore the effect of different pH values on calcification of rat vascular smooth muscle cells (VSMCs) through bone morphogenetic protein (BMP)-2 signaling pathway. Methods Healthy male SD rats aged 5-8 weeks were selected in the study. VSMCs from rat thoracic aorta were cultured in vitro, and then identified by immunocytochemistry. The VSMCs were randomly divided into 4 groups by random sampling method:normal group (pH 7.4), pH7.4+high phosphorus group, pH 7.1+high phosphorus group, and pH 7.7+high phosphorus group. Calcium deposition and alkaline phosphatase (AKP) activity were measured by alizarin red staining and enzyme linked immunosorbent assay. The expressions of BMP-2, Smad1 and Runx2 mRNA were detected by RT-PCR. Results Compared with the control group, the calcification staining was increased in pH 7.4+high phosphorus group, calcium content was increased and expressions of BMP-2, Smad1, Runx2 mRNA and AKP activity were also increased (P<0.05). While compared with the pH 7.4+high phosphorus group, calcification staining, calcium content, expressions of BMP-2, Smad1, Runx2 mRNA and AKP activity were decreased in pH 7.1+high phosphorus group (P<0.05). The calcification staining, calcium content, expressions of BMP-2, Smad1, Runx2 mRNA and AKP activity were increased in pH 7.7+high phosphorus group (P<0.05). Conclusion The extracellular acidic environment (pH 7.1) can inhibit high-phosphotus-induced VSMCs calcification, whereas extracellular alkaline environment (pH 7.7) induce high-phosphotus-induced VSMCs calcification. The mechanism is presumably that VSMCs calcification is induced by influencing BMP-2 pathway, which may be mediated by VSMCs phenotype transdifferentiation of BMP-2 signaling pathway.

Objective To explore the correlation between anaplastic lymphoma kinase (ALK) fusion gene detected by immunohistochemistry (IHC) and reverse transcription-polymerase chain reaction (RT-PCR) in non-small cell lung cancer. Methods The ALK fusion protein/gene in 71 patients of NSCLC which was detected both by IHC (1A4/1H7) and RT-PCR were retrospective studies, and the 2 methods were compared. Results Among the 71 NSCLC patients, the ALK fusion protein positive was in 21 cases and negative was in 50 cases by IHC detected, while the ALK fusion gene positive was in 12 cases and negative was in 59 cases by RT-PCR. The ALK fusion genes detected by RT-PCR were all negative when IHC negative and IHC 1+. All patients with IHC 2+ and IHC 3+ were confirmed ALK fusion genes positive with RT-PCR. The positive rate of ALK fusion protein detected by IHC in large surgical specimens was 28.95%(11/38), and the positive rate of ALK fusion protein detected by IHC in small biopsy specimen was 30.30%(10/33). The positive rate of ALK fusion gene detected by RT-PCR in large surgical specimens was 18.42%(7/38), and the positive rate of ALK fusion gene detected by RT-PCR in small biopsy specimen was 15.15% (5/33). Conclusions Although the ALK fusion protein detected by IHC may have certain false positive, IHC is highly consistent with RT-PCR in IHC 2+and IHC 3+ cases. The combination of IHC and RT-PCR can be used to ALK fusion gene positive NSCLC screening and diagnosis. The small biopsy specimen is also good material for ALK detection, when the surgical specimen can not be got from patients.