OBJECTIVE:To evaluate the quality of antidiabetics in Beijing so as to provide the reference for pharmaceutical manufacturers,patients and governmental departments of drug control.METHODS:236package samples of4kinds of common oral antidiabetics(glibenclamide,gliquidone,metformin,and phenformin)in Beijing medicine market were randomly selected and analyzed.RESULTS:4samples were found to be unqualified,with the disqualification rate of1.7%.CONCLUSION:The quality of4kinds of common oral antidiabetics in Beijing medicine market in2004is satisfactory on the whole.

Objective To investigate the chemical constituents in sponge Tedania sp..Methods Solvent extraction,gel and silica column chromatography were used to separate the chemical constituents,the structures of whichwere identified by physicochemical properties and spectral analyses.Results Six compounds were isolated and their structures were identified as cholesterol(1),stearic acid(2),?-sitosterol(3),daucosterol(4),4-hydroxybenzoic acid(5)and thymidine(6).Conclusion Compounds 1,2,3,5 were first found from this marine invertebrate.

Objective To investigate the effect of vitamin D on pulmonary function in patients with chronic obstructive pulmona-ry disease,and to explore its possible mechanism.Methods Patients with chronic obstructive pulmonary disease admitted in the hospital were randomly divided into 2 groups,one group of patients were given regular COPD treatment (control group,30 cases), the other group of patients were given vitamin D on the basis of conventional therapy(experimental group,30 cases).Pulmonary function test and C reaction protein (CRP)determination in the 2 groups were performed,the contents of PaO2 ,PaCO2 were also determined.Results Compared with the control group,lung function improvement in experimental group were more obvious,and the the number of acute attack significantly reduced(P <0.05).The concentration of CRP in experimental group was significantly lower after treatment than before treatment(P <0.05),while the concentration of CRP in control group didn′t change significantly (P >0.05).Conclusion Vitamin D contributes to the improvement of pulmonary function in patients with COPD,and its mecha-nism might relate to the reduction of inflammatory reaction.

Objective To assess the change of plasma adrenomedullin(ADM)and endothelin(ET)in patients with essential hypertensin. Methods Concentrations of plasma ADM and ET were measured in 18 healthy control subjects and 52 patients with essential hypertension, 36 patients of which had no target organ damage, while 16 patients of which were complicated with renal impair. Results The concentrations of ADM and ET were significantly higher in patients with renal impair than in patients without organ damage. Plasma concentrations of ADM and ET were strongly positively correlated with blood urea nitrogen levels and serum creatinine levels. A strong inverse correlation between GFR and plasma concentrations of ADM and ET was found. Conclusion The increase of plasma ET and ADM may have an intimate relation to the renal function. ADM and ET may play some important role in the pathophysiologic makeup of hypertension and hypertension with renal dysfunction. ADM may act against excessive vasoconstrictor ET increased in essential hypertension and may be part of a compensatory mechanism to offset further development of renal impair.

Laryngeal interarytenoid neurilemmomas (LIN) is a benign encapsulated tumor originating from the schwann cells lining nerve fibers. Even though LINs are extremely rare in incidence, they could present with potential threat to the airway and thus requiring prompt diagnosis and treatment. Here, we report two cases of LINs. Both patients underwent excision of the tumor via microlaryngeal endoscopic procedures and recovered well postoperatively without complications. No recurrence was observed postoperatively on routine follow-up after 14 months.
Endoscopy ; Humans ; Larynx ; pathology ; surgery ; Neurilemmoma ; surgery ; Otorhinolaryngologic Surgical Procedures ; Postoperative Period

OBJECTIVE To analyze the significance of serum infectious markers in different sources and investigate the prevetion strategy of nosocomial infection in clinical laboratory. METHODS The serum infectious markers(HBsAg,anti-HCV,anti-HIV and syphilis antibody) were detected in outpatient,inpatient and physical check-up people from Jun 2007 to Jun 2008. RESULTS The total percentage of HBsAg,anti-HCV,anti-HIV or syphilis antibody positive in outpatient,inpatient and physical check-up people was 43.30%,13.56% and 7.26%,respectively.The positive rate of HBeAg in outpatient,inpatient and physical check-up people was 12.29%,1.78% and 0.71%,respectively.The average infection rate of syphilis was 1.75% in inpatients,but in inpatients above 60 years old it could be 3.75%.Twenty-one cases were reconfirmed of HIV positive by the reconfirmation laboratory of CDC in Human Province. CONCLUSIONS The positive rates of four serum infectious markers in outpatient or inpatient are markedly higher than that in physical check-up people(? 2=10 117.6,P

Objective To investigate the expression of adiponectin Mrna in adipose tissues of spontaneously hypertensive rats (SHR) and the effects of Fosinopril (Fos) and osartan (Los) on adiponectin Mrna.Methods Twenty 22 - week old male SHR rats were randomly divided into four groups:SHR group,Fos group,and Fus + Los group.Five 22 - week old male WKY rats were used as control.The body weigh,cuff-tail blood pressure,urinary microprotein and urinary N-acetyl-β-D-glucesaminidase were determined.RT-PCR were applied to determine the expression of adiponectin Mrna in adipose tissues.Results At the eighth week,systolic blood pressure of rats in SHR group was significantly higher than those in the other four groups (P＜0.05).The levels of urinary microprotein,urinary NAGase in the WKY group,Fos group,Los group and Fos + Los group were significantly lower than those in SHR group(P＜0.05).RT-PCR analysis revealed that the expression of adiponectin Mrna in SHR group was obviously decreased,compared with WKY goup.Adiponectin Mrna expression in Los group,Fos group and Fos + Los group were increased compared with SHR group(P＜0.05).Conclusions The expression of adiponeetin Mrna is down-regulated in adipose tissues of SHR.After intervention with Fusinopril and Losartan,the adiponectin Mrna expression was up-regulated in adipose tissues of SHR,the levels of urinary microprotein and urinary NAGase were obviously increased in SHR and the levels of urinary microprotein and urinary NAGase were obviously decreased.

Objective To evaluate the body burden of Cadmium(Cd) in normal children from Shenyang city,and to analyze the effect of Cd on kidney.Furthermore,to investigate the influences of living factors on the level of Cd in children,so as to make recommendations for children's health.Methods The subjects was composed of 1 170 healthy children recruited from 0 to 17 years old by cluster random sampling method.They were divided into three groups(0-5 years old group,6-11 years old group,12-17 years old group).Questionnaires were used to obtain essential information about age,gender,weight,socioeconomic status,medication,and so on.Second morning urine samples were collected to make routine analyses,urinary Cd(Cdob),urine microalbumin(MALB) and α1-microglobulin(α1-MG).Results 1.A total of 1 070 children including 544 males and 526 females were enrolled.2.The concentration of Cdob increased with age,in agreement with the level of urinary Cd corrected by urine specific gravity (Cdsg).However,the level of Cd in urine corrected by urinary creatinine(Cdcr) presented the opposite status with the age increasing.3.Cdcr and urine MALB adjusted by urinary creatinin(MALBcr) revealed a positive correlation(rs =0.45,P ＜ 0.01).4.Preference values for Cdob and Cdsg,Cdcr respectively were:0-5 years old ＜0.56 μg/L,＜0.83 μg/L and ＜2.17 μg/g Cr;6-11 years old ＜0.65 μg/L,＜1.01 μg/L and ＜1.23 μg/g Cr;12-17 years old ＜0.74 μg/L,＜1.15 μg/L and ＜ 1.25 μg/g Cr.Conclusions There is an age-dependent cumulative increases in Cdob.Although renal damage was not found in this study,the uptake of Cd should be reduced as much as possible and it is necessary to strengthen the follow-up study of Cdob in body burden.

AIM: To examine the quality of Radix Astragali Injection from different manufacturers. METHODS: The HPLC-ELSD method for the determination of astragaloside Ⅳ in Radix Astragali Injection was established with hypersil ODS 2 C 18 column(250mm?4.6mm,5?m), column temperature at 40℃. The mobile phase was acetonitrile-water (36∶64) and flow rate was at 1.0mL?min -1. The evaporation light-scattering detector was used with its drift tube temperature at 100℃ and the gas flow rate: 3.0L?min -1. RESULTS: Within 2.4～12?g astragaioside Ⅳ had a good linearity. The average recovery was 101.6%, RSD=2.9%,n=5. By analyzing the samples of 10 batch of Radix Astragali Injection from 5 manufactuers, it showed there were significant difference in the contents of astragaloside Ⅳ. CONCLUSION: The method is simple and fast. The results are accurate and reproducible and can be used in the quality control of Radix Astragali Injection. The significant differences in the astragaloside content may influence clinical treatmem.

AIM:To investigate the change in myocardial mitochondrial Ca 2+ concentration ([Ca 2+ ] m) and its mechanism in the early stage of severe burn. METHODS:An experimental model of 30%TBSA full-thickness skin scalding was reproduced in rats. [Ca 2+ ] m, cytosolic Ca 2+ concentration ([Ca 2+ ] c) and mitochondrial Ca 2+ transport velocity were determined. RESULTS: ① [Ca 2+ ] m increased evidently at 1st hour postburn, and continuously at 3rd hour, reached the peak at 6th hour postburn, then, it decreased at 12th and 24th hour, but remained in higher level than that of the control. ② There was no significant difference in [Ca 2+ ] c between 1st hour postburn and the control, but [Ca 2+ ] c increased evidently at 3rd, 6th, 12th, 24th hour postburn. ③ mitochondrial Ca 2+ uptake velocity at 1st hour postburn was higher than that of control, and Ca 2+ release velocity didn't change obviously, but both of them were decreased at 3rd, 6th, 12th, 24th hour postburn. ④ [Ca 2+ ] m was positive correlated with [Ca 2+ ] c after burn, and negative correlated with mitochondrial Ca 2+ release velocity at 3rd, 6th, 12th, 24th hour postburn, respectively. CONCLUSION: There was obvious Ca 2+ overload in myocardial mitochondria after severe burn, the mechanism of which might include ascent of [Ca 2+ ] c and disorder of Ca 2+ transport in mitochondria. [