Objective To study the clinical characteristics of the surgical treatment of cardiac valve disease in elderly patients.Methods Between January 2004 and February 2009,43 patients aged ≥65 underwent cardiac valve operation were enrolled as elderly group,85 patients aged <65 underwent the same operation served as control group in the same period,analyzed the clinical characteristics and difference between the two groups.Results The mortality of elderly group was higher than that of control group [11.6%(5/43) vs 2.4% (2/85),P<0.05].In elderly group,the duration of staying in ICU [(73.8±15.9) h],mechanical ventilation [(40.4±10.1)h],postoperative hospitalization time [(23.7±6.3) d]and the morbidity of postoperative complications [23.3%(10/43)]were higher than those of control group [(43.1±8.6)h,(28.5±5.8) h,(15.6±3.8) d,5.9%(5/85)](P<0.05 or <0.01).Conclusions Although there are high risks in patients aged 65 years and elderly with cardiac valve disease,the treatment results would be satisfactory ff select the right operating time and do full preparation with reasonable surgery strategy,the mortality and morbidity of postoperative complications could be reduced.

Objective: To study the effect of short exposure to high levels of fluoride on cellular structure and the DSP expression of odontoblasts of mice molars. Methods: 32 4-day-old ICR mice were randomly divided into two groups. The experimental animals were received a single intraperitoneal dose of 20 mg(n =8) andlO(n=8) mg NaF/kg( body weight) respectively. Equal doses of NaCl were given to the controls (n = 8 for each group). The injected volume was kept constant (10 μ/g). After 24 hours all mice were sacrificed. HE staining and immunohistochemical staining were used to observe the structural changes and the expression of DSP in odontoblasts of mouse molar at different stages. SPSS 13.0 software package was used to analyze the results. Results: The secretory odontoblasts distorted and lost its normal column contour. The immunohistochemistry results demonstrated that the expression of DSP was more intense than that in control group. Results of statistics analysis showed there were significant differences between the two groups(P<0.01). No remarkable differences were found in mature odontoblasts. Conclusion: Short exposure to high concentration of fluoride can enhance the expression of DSP in the secretory odontoblasts,and inhibit differentiation of the odontoblasts and matrix secretion. This lead to the abnormal development of dentinogenesis.

AIM: To study if the effect of arsenic sulfide combined with IFN-α can be increased on K562 cells. METHODS: Telomerase activity was determined by PCRELISA. Flow cytometry was used to analyze the cell apoptosis. The final concentration of IFN-α and arsenic sulfide was 10 000 U/mL and 0.6 mg/L. RESULTS: The rates of apoptosis was 37.8% and 37% in K562 cells treated with IFN-α or arsenic sulfide alone for 8 days; The rates of apoptosis and inhibition of telomerase activity was 59.9% and 81.2% in K562 cells treated with IFN-α and arsenic sulfide simultaneously for 8 days, or 60.37% and 78.8% in K562 cells was treated with arsenic sulfide for 5 days after affected by IFN-α for 3 days. 71.3% telomerase activity was inhibited in K562 cells by arsenic sulfide alone for 8 days. CONCLUSION: Combination of arsenic sulfide and IFN-α can increase the apoptosis and inhibit the telomerase activity of K562 cells obviously comparing with the two drugs used alone. IFN-α maybe promote arsenic sulfide inducing apoptosis of K562 cells.

This paper explored the educational reform of dispensing Chinese drugherbs. The education reform included implementing the project of teaching methods, implementing modern experimental methods, cultivating comprehensive quality of students, training students' creative thinking, and stimulating the initiative of students. All these strategies could improve the quality of teaching and make students' comprehensive abilities meet the demand.

Congresses as Topic ; Humans ; Sleep Apnea, Obstructive

OBJECTIVE:To analyze the rules and characteristics of adverse drug reactions(ADR)induced by Shuxuetong in-jection,and provide reference for clinical rational drug use. METHODS:ADR cases induced by Shuxuetong injection in Beijing collected by national ADR monitoring center in 2012 were retrieved,and 35 cases of the ADR were statistically analyzed. RE-SULTS:ADR induced by Shuxuetong injection had relatively high incidence in elder over 60 years old(68.57%);ADR might oc-curred after 5 min with off-label use and it mainly occured after 10 min-2 h(40.00%);clinical manifestations were mainly systemic damage and nervous system damage,and all patients were returned to normal after symptomatic treatment except one with unclear outcome. CONCLUSIONS:ADR induced by Shuxuetong injection is related to age and dosage. Clinical medication should be strict-ly in accordance with the instructions,strengthen medication monitoring and reduce incidence of ADR to ensure medication safety.

Objective To study the EEG discharge index, intelligence test and event-related potential P300 in BECT, and to analyze the change of EEG discharge index and cognitive function before and after the treatment.Methods Sixty patients with BECT were enrolled in this study, they were treated with EEG, intelligence tests and P300 before and after the treatment.Results (1) The EEG discharge index were reduced remarkly after treatment in BECT with levetiracetam and lamotrigine, the difference was statistically significant (P ＜ 0.05).(2) Comparing before and after 3 or 6 months treatment, the latency of P300 had reduced with significant difference (P ＜ 0.05).(3) After 3 months treatment, VIQ and FIQ has no obvious improvement, but PIQ has improved.After 6 months treatment, VIQ、 PIQ and FIQ were improved.The difference was statistically significant (P ＜ 0.05).(4) There was a negative correlation of EEG P300 latency (r =0.175), as well as there was a negative correlation between EEG discharge index and intelligence test (r =0.044).Conclusion There is impaired cognitive function in BECT, especially the more frequently the EEG discharge, the more extended of P300 latency, as well as the more serious damage of intelligence and cognition after treatment.The intelligence were improved after treatment with Levetiracetam and lamotrigine, the longer the treatment time, the more obvious of intelligence levels improve.

Objective To discuss the synergistic mechanism of compatibility of Tripterygium Wilfordii and Astragalus,and to determine wilforlide A before and after compatibility.Methods To research Tripterygium Wilfordii single medicinal materials,Tripterygium Wilfordii compatibility of Astragalus and Tripterygium Wilfordii reference substance using the HPLC method,so as to provide further verification by the change of wilforlide A.Results The content of wilforlide A was 0.00 324% by measuring Tripterygium Wilfordii single medicinal materials.The content of wilforlide A was 0.00 184% by measuring Tripterygium Wilfordii compatibility of Astragalus.Conclusion The content of wilforlide A was decreased before and after compatibility and toxicity can be reduced.The synergistic mech-anism of the compatibility of Tripterygium Wilfordii and Astragalus is conteract the toxicity of another drugin posse.

Objective To establish an HPLC method for the content determination of sodium Danshensu inBawei Qidan Capsule.Methods HPLC was applied and the determination was performed on Shim-pack CLC-ODS C18 column (250 mm×4.6 mm, 5μm) with methanol-water- acetic acid (7∶92∶1, V/V/V) solution at a flow rate of 1.0 mL/min and detection wavelength at 281 nm. The column temperature was 30℃, and injection volume was 10μL.Results Through methodological study, the linear range of sodium Danshensu was 0.494 4-4.944μg (r=0.9996), the average recovery was 97.20%, RSD=1.13%.Conclusion The HPLC method for the content determination of sodium Danshensu inBawei QidanCapsule was user-friendly, accurate and reliable, with good repeatability and stability, which can be used for quality control ofBawei Qidan Capsule.

Objective To explore the reasons for disharmony between medical staff and medical staff because of electronic clinical ordering,to specificate electronic medical order in ward in order to create a harmonious relationship between doctors and nurses. Methods The methods of qualitative research conducted in-depth interviews of 12 medical staff, field recordings and transcripts, and the method of content analysis were used. Results Two themes were sublimated:medical staff reasons:lack of communication between the medical staff;new doctors didn't have a good command of medical norms of specialist electronic orders; on the responsibility of checking the doctor's advice problems may lead to potential adverse events occurrence. System equipment reason: the electronic doctor's advice system set up the problem; the office computer quantity is insufficient. Conclusions Nonstandard electronic medical management leads to the disharmony of health care. It is suggested to standardize the management of electronic medical advice by implementation of the responsibility to avoid medical coupling errors. The health care workers need to strengthen communication, mutual understanding and forgiveness, in order to create a harmonious medical environment.