ABSTRACT
@#Heibu Yaogao (ointment), which made of Galla chinensis, Scolopendra, etc., is a commonly used hospital preparation with definite clinical efficacy, yet its material basis has not been fully clarified.By ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS), the chemical constituents of Heibu Yaogao (ointment) and its crude drug mixture were qualitatively analyzed, and the differences of components before and after preparation were discussed.Scanned by electrospray ionization (ESI) source in positive and negative ion modes, a total of 73 compounds were identified via precise molecular weight, characteristic fragment ions and chromatographic retention time.57 and 65 compounds were detected in crude drug mixture and Heibu Yaogao (ointment) respectively, including tannins, phenolic acids, nucleosides, amino acids, etc.In the process of preparation, the chemical structure changes are mainly concentrated in tannins.The change of components of Heibu Yaogao (ointment) before and after processing were proved by UPLC-Q-TOF-MS/MS, which provides important reference for elucidating the material basis of Heibu Yaogao (ointment), illustrating the rationality of preparation technology and further promoting the quality control of the preparation.
ABSTRACT
@#Fufang Shechuangzi Xiji (Lotion) is a common hospital preparation made from clinical prescriptions. Its clinical efficacy is accurate, yet its pharmacodynamic material basis has not been clarified.An ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS/MS) technique was developed to identify the chemical constituents of Fufang Shechuangzi Xiji (Lotion).The chemical constituents of Fufang Shechuangzi Xiji (Lotion) were scanned by electrospray ionization (ESI) source in positive and negative ion modes.As a result, a total of 118 compounds were identified and characterized via reference standards and by comparing mass spectrometry data with literature, including 45 alkaloids, 21 coumarins and chromones, 19 flavonoids, 14 saponins, 10 anthraquinones and 9 organic acids.As a result, UPLC-QTOF-MS/MS technology can quickly and sensitively identify the chemical constituents of Fufang Shechuangzi Xiji (Lotion), which provides a useful reference for exploring the pharmacodynamic material basis and further quality control study of the preparation.
ABSTRACT
Objective To study the effect of Shenfukang Ⅱ on kidney function and TGF-β1/Smads signal pathway with 5/6 nephrectomy model in rats. Methods Thirty SD rats were randomly divided into the sham operation group, model group and Shenfukang group according to a random number table. We used 5/6 nephrectomy to prepare animal models. The rats were given Shenfukang Ⅱ particles 450 mg/(kg?d) gavage, the others group were given equal volume of saline gavage, once a day, continuous 21 days. The rats were given gavage at the 9 th week after operation. The changes of renal function index BUN, SCR and UA of rats in each group were detected 21 days after administration. The expression of TGF-β1, TGFβR1, Smad7, pSmad2, pSmad3 in renal tissues were detected by immunohistochemistry. The Smad7, pSmad2 and pSmad3 detected the expression of in renal tissues by Western Blot. Results Compared with the model group, the content of BUN (15.03 ± 2.19 mmol/L vs. 24.30 ± 2.82 mmol/L), SCR (74.22 ± 7.36 μmol/L vs. 93.61 ± 14.73 μmol/L) in Shenfukang group significantly decreased (P<0.05). The expression of TGF-β1, TGFβR1, pSmad2 and pSmad3 significantly decreased in kidney tissue, while the expression of Smad7 significantly increased in kidney tissue. The expression of p-smad2 (0.47 ± 0.03 vs. 0.64 ± 0.04) and p-smad3 (0.43 ± 0.04 vs. 0.55 ± 0.02) significantly decreased (P<0.05), and the expression of Smad7 (0.54 ± 0.03 vs. 0.39 ± 0.02) significantly increased (P<0.05). Conclusions Shenfukang Ⅱ have improved on kidney function with 5/6 nephrectomy model rats. The study revealed that Shenfukang II may play an anti-fibrotic effect on regulating TGF-β1/Smads signaling pathway with 5/6 nephrectomies model.
ABSTRACT
Objective To investigate the application value of BIS monitoring and Ramsay score in the prevention of unplanned tracheal extubation in ICU patients.Methods 93 patients were enrolled in this study,they were divided into the experimental group(47 cases)and the control group(46 cases) using random number method.They received sedation regimens with BIS monitoring and Ramsay score or Ramsay score respectively.Occurrence rate of unplanned extubation was compared between the two groups.Results The occurrence rate of unplanned extubation was significantly lower in the experimental group than that of the control group.Conclusions BIS monitoring and Ramsay score is a suitable ways for the management of sedation of intubated patients.
ABSTRACT
Objective To investigate the expression of RECK gene in placentas of patients with preeclampsia and its correlation with MMP-2 activation,and explore the possible roles of RECK gene in the placental trophoblast invasion mechanism.Methods RT-PCR and Western blot were used to detect the expression of RECK mRNA and protein respectively in the placental tissues of normal late pregnant women (normal pregnant group,22 cases) and pre-eclamptic patients(22 mild cases and 20 severe cases).Gelatinase zymography was used to determine MMP-2 activation ratio.Results The expression levels of RECK mRNA and protein from placenta tissues in mild,severe pre-eclamptic group were both significantly higher than those in nomal pregnant group.Moreover,the expression levels of RECK mRNA and protein in severe pre-eclamptic group were obviously increased as compared with those in mild pre-eclamptic group.There was significant difference among the three groups (all P<0.01).MMP-2 activation ratio in mild,severe pre-eclamptic group was significantly lower than that in normal pregnant group.MMP-2 activation ratio in severe pre-eclamptie groups was obviously reduced as compared with mild pre-eclamptic group.There was significant difference among the three groups(all P<0.01).The expression leVels of RECK mRNA and protein were significantly negatively correlated with MMP-2 activation ratio (both P<0.01).Conclusion The abnormal high expression of RECK and inhibition of MMP-2 activation in placentas of pre-eclamptic patients may participate in the process of placental trophoblast shallow invasion.
ABSTRACT
Objective To evaluate the effectiveness of intratracheal tube suctioning by respiratory mechanics measurement.Methods The indexes of respiratory mechanics,including respiratory rate,expiratory tidal volume,% leak around the tube,dynamic respiratory compliance and mean airway resistance were measured just before and 20 minutes after intraendotracheal tube suction in mechanical ventilated children with respiratory failure.Results Fifty-two measurements was carried out in 11 patie nts.The mean values of respiratory risistance was (116.73±27.12)cmH2O/L.s before suctioning and (93.38±26.64)cmH2O/L.s after suctioning,with significant differrence(P＜0.01)；The mean values of % leak around the tacheal tube dereased from(18.12±4.12)% before suctioning to (8.71±3.76)% after suctioning (P＜0.05),The mean values of expiratory tidal valume was markedly increased from(7.31±2.12)ml/kg before suctioning to(5.72±1.2)ml/kg after suctioning(P＜0.01),The total respiraory rate markedly decreased after suctioning.Conclusion The respiratory mechanics measurement is very useful to evaluate the airway patient.The removal of secretions is crucial in respiratory managemet.
ABSTRACT
Objective To study the treatment of adolescent hyperthyroidism. Methods Retrospective analysis of the clinical data of the adolescent hyperthyroidism treated by surgery was made in our hospital from January 1990 to December 1998. Results In this series, there was no death, with 3 cases transient postoperative hypocalcemia and 1 had throat spasm and physoia. All the 4 cases recovered after treatment. 78 cases(85.7%) were followed up for 0.5～9 years. Of them, all were in good condition except 2 being recurred. Conclusions Operative treatment for adolescent hyperthyroidism is a safe, quick and effictive method, but the operation indications should be good controlled.