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.

Congresses as Topic ; Humans ; Sleep Apnea, Obstructive

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.

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 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 value of Gd-EOB-DTPA enhanced magnetic resonance imaging (MRI) in the quantitative evaluation of liver function.Methods Between June 2012 and June 2013,we prospectively included 8 patients with cirrhosis and 6 patients with primary hepatic carcinoma (PHC).The Child-Pugh classification,indocyanine green retention rate at 15 minutes (ICGR15),and Primovist enhanced MR imaging were performed in all the patients.Using the deconvolution method to calculate hepatic extraction fraction (HEF),the correlations between HEF and Child-Pugh and ICGR15 were analyzed.Results For cirrhosis,there was a significant correlation between the HEF and the ICGR15 by the Pearson correlation coefficient (r =-0.971,P ＜ 0.05).For hepatocarcinoma,there was also a significant correlation (r =-0.855,P ＜ 0.05).The average HEF of PHC was 21.80％ (14.89％ ～ 35.90％).Conclusions The Gd-EOB-DTPA enhanced MRI accurately evaluated liver function quantitatively.It may be used for patients with PHC for preoperative examination.

Objective: To find out existed problems in government health investment process, it needs to increase efficiency rate of government health investment’s special fund. Methods: Through making statistics on the efficiency rate of central special funds in Shanxi government health investment, and analysis on the appropriate process of financial department of all levels. Results: Central government special funds distribution interval is too long, efficiency rate is low. Conclusion: It needs to accelerate special fund distribution and to carry out financial management model from province to county and enhance financial supervision.

Objective: To sieve the bioactive constituents of Radix Puerariae,serum pharmacochemistry research was performed.Method: Based on the establishment of HPLC fingerprints of Radix Puerariae,the constituents absorbed into blood were determined by comparing the HPLC fingerprints of the methanol extracts,tested serum samples and blank serum sample.Results: Four compounds absorbed into blood were detected,among which two were original constituents of Radix Puerariae(including puerarin),the other might be metabolites of the original constituents.Conclusion: These four constituents absorbed into blood were possible bioactive components of Radix Puerariae.Further studies on them will help clarify the bioactive constituents and mechanisms of Radix Puerariae.