AIM: To explore a relative quantitative method by establishing HPLC digitized fingerprints of Fructus Gardeniae and taking the control medicinal material as a reference substance. METHODS: The chromatographic fingerprints were obtained by injecting the sample solution each time on a CenturySIL C_(18) BDS column (20 cm?4.6 mm,5 ?m) with the gradient elution solvent system composed of 1% acetate acid-water and 1% acetate acid-acetonitrile.The flow rate was 1.0 mL/min,the column temperature was maintained at(30?0.15) ℃ and the detection wavelength was set at 265 nm.The HPLC fingerprints of the control medicinal material for Fructus Gardeniae were obtained under different injection volumes and calculated by "the digitized evaluation system of the traditional Chinese medicine fingerprint with the super-information characteristics".Equivalent regression curves were obained by making linear regression between the fingerprint peak areas and apparent injection amounts.(RESULTS:) 35 co-possessing peaks were selected as the fingerprint peaks of Fructus Gardeniae by taking Geniposide peak as the reference peak.Both the equivalent relation between each of the ten places and control medicinal material of Fructus Gardeniae and the equivalent relation between each fingerprint peak of different places and that of Fructus Gardeniae control medicinal material were calculated by equivalent regression curves. CONCLUSION: This method can be useful in the quality control of Fructus Gardeniae.It is also of importantance in deeply studying the relative amounts of single fingerprint peak,and it provides reference value in extending the quantitative evaluation methods of TCM.

To explore the causes and treatment of arrhythmia during the peri-operative period of thoracic surgery, 566 patients undergoing pulmonary surgery were included for a retrospective analysis. Among them, 121 patients were complicated by arrhythmia. With timely treatment, the arrhythmia was controlled in all patients. The causes of arrhythmia after pulmonary surgery were old age, heart and lung diseases, abnormal ECG before operation, and long operation time.

Objective To summarize and discuss the therapeutic strategies of mechanical ventilation for severe thoracic trauma complicated by acute respiratory distress syndrome (ARDS). Methods Ninely-four patients with severe thoracic trauma complicated by ARDS, in whom mechanical ventilation were instituted and multiple methods in addition to routine treatment, were analysed. Results Eight of them died, with a total mortality of 8.5%. After Jan. 1995, by using small tidal volume mechanical ventilation, the use of mechanical ventilation was maintained for 6.8?2.2 days(P

AIM: A capillary electrophoresis fingerprints(CEFP) method of Fructus Gardeniae was established to evaluate its quality. METHODS: The background electrolyte(BGE) was 25 mmol/L sodium borate solution containing 10% acetonitrile.The detection wavelength was 228 nm and 24 kV was applied.Fructus Gardeniae was extracted by water and injectded for 15 s(9 cm).Some parameters were used to evaluate the similarities.(RESULTS): 24 co-possessing peaks were selected as the fingerprint peaks of Fructus Gardeniae taking chlorogenic acid peak as the reference peak.The similarities between each of the ten places and the standard CEFP of Fructus Gardeniae were evaluated both qualitatively and quantitatively.The CEFP was also evaluated by the information index(I) and the relative information index(I_r). CONCLUSIONS: The CEFP has acceptable precision,reproducibility and can be used to control the quality of Fructus Gardeniae.

AIM: To establish a novel method for the overall quality control of Fructus Gardeniae by HPLC digitized fingerprint and its normalization. METHODS: The chromatographic fingerprints were obtained by injecting 5 ?L of the sample solution each time on a Century SIL C_ 18 BDS column (20 cm?4.6 mm, 5 ?m) with the gradient elution solvent system composed of 1% acetate acid-water and 1% acetate acid- acetonitrile. The flow rate was 1.0 mL /min, the column temperature was maintained at (30?0.15)℃ and the detection wavelength was set at 265 nm. The chromatographic fingerprints were evaluated by the digitized parameters, such as the chromatographic fingerprint index (F), quantitative similarity, etc,. The influence of big peak on similarity was elaborated by direction cosines, and its cancellation was achieved by the qualitative similarity of peak area ratio. RESULTS: 35 co-possessing peaks were selected as the fingerprint peaks of Fructus Gardeniae by taking Geniposide peak as the reference peak. The HPLC digitized fingerprint and its normalization were implemented. CONCLUSION: This method with good precision and reproducibility can be useful in the quality control of Fructus Gardeniae.

BACKGROUND:Hip arthroplasty is an effective means currently in repair of femoral neck fractures. With the increased in the amount of surgery, surgery failure rate also has increased. In particular, prosthesis loosening and fracture are very common after replacement.Qiangguyin can promote the formation of osteoblasts, resist osteoporosis, inhibit osteoclast activity, and increase bone density. Drynaria invigorates the kidney, strengthens the bone and tendon and relieves pain, and has bidirectional regulatory effects on promoting bone formation and inhibiting bone resorption.
OBJECTIVE:To investigate effects ofQiangguyin on periprosthetic bone density in patients with femoral neck fracture after hip arthroplasty.
METHODS:96 patients with femoral neck fracture were equaly divided into observation group and control group based on the random number table. Both groups were given selective joint replacement. Patients were implanted with femoral head made by US Stryker Corporation, and fixed with bone cement. After replacement, patients in the control group were treated with calcium D3 tablets and capsules alfacalcidol. On this basis, the treatment group was given theQiangguyin oral drug intervention for a month. Bone density surrounding the prosthesis was observed in both groups. Alkaline phosphatase and tartrate-resistant hydrochloric acid phosphatase activities were detected. Repair effects were compared.
RESULTS AND CONCLUSION:The surgery was successfuly completed in al patients. No infection or loosening of the prosthesis occurred. Ambulation time and healing time were significantly less in the observation group than in the control group (P < 0.05). No significant difference in bone density surrounding the prosthesis was detected between the two groups before medication, and an obvious increased trend was found after medication (P < 0.05). Bone density was significantly higher in the observation group than in the control group after medication (P < 0.05). Serum alkaline phosphatase activity was significantly higher in the two groups after medication, but tartrate-resistant hydrochloric acid phosphatase activity was significantly decreased, which showed significant differences as compared with that before medication (P < 0.05). Simultaneously, significant differences in serum alkaline phosphatase activity and tartrate-resistant hydrochloric acid phosphatase activity were detected between the observation and control groups after medication (P < 0.05). At 6 months after replacement, the excelent and good rate of joint function was significantly higher in the observation group than in the control group (94%, 79%,P < 0.05). These results indicate that Qiangguyin could resist bone resorption and suppress excessive bone turnover, improve bone density around the prosthesis, and restore joint function after hip arthroplasty.

AIM:To establish a HPLC diagitized fingerprint for Ixeris sonchifolia Hance Injection to serve as a digitized method criteria for its overall quality control. METHODS: The chromatographic fingerprints were obtained by injecting 20 ?L of the sample solution each time on a Century SIL BDS column (250 mm?4.6 mm, 5 ?m) with the gradient elution solvent system composed of 1% acetic acid water and 1% acetic acid acetonitrile. The flow rate was 1 mL/min, the column temperature was maintained at (30?0.15)℃ and the detection wavelength was set at 265 nm. The chromatographic fingerprints were charateristically digitized and evaluated by the software of the digitized evaluation system of traditional Chinese medicine fingerprint with the super information characteristics to give the 42 parameters such as chromatographic fingerprint index (F), chromatographic fingerprint resolution index (RF), which could thoroughly disclose the hidden information in the fingerprints. Meanwhile, the apparent molecular weight, the peak position, the elution fore index and the pseudo peak area were marked in terms of the principle of QSPR when the two peaks were selected as the reference peaks. RESULTS: 21 co-possessing peaks were selected as the fingerprint peaks of Ixeris sonchifolia Hance Injection by taking caffeic acid peak as the reference peak to establish the digitized fingerprint and obtain the important digital information about its quanlity control. The stabilities among different batches of samples were evaluated by the dual qualitative and dual quantitative similarity method. CONCLUSION: This new digitized fingerprint method with good precision and reproducibility can be perfectly applied to the quality control over Ixeris sonchifolia Hance Injection. Digitized fingerprint obtained from the dual qualitative and dual quantitative similarity method maybe extend further to assess and control the quanlity of TCM.

BACKGROUND:It is convenient to fabricate porcelain veeners using chairside computer aided design/computer aided manufacture (CAD/CAM) system. However, the color of the restorations is not ideal when the veener is cemented immediately, so different surface treatments are needed. OBJECTIVE:To investigate the influence of different surface treatments on the color of chairside porcelain veneers made of CEREC Blocs and the color match between the porcelain veneers and teeth. METHODS:Five fresh extracted maxillary central incisors were selected and prepared. Twenty-five 0.6 mm porcelain veneer specimens were fabricated with Sirona CEREC Blocs by chairside CAD/CAM system, and then randomized into five groups. Untreated specimens served as control group. The other four groups were treated respectively by polishing, glazing, glazing after polishing or staining. The color parameters of specimens and the teeth were measured with ShadeEye NCC on the middle 1/3 region of labial surfaces, and color differences (ΔE) between the specimens and teeth were calculated. Data were analyzed by SPSS 19.0 software. RESULTS AND CONCLUSION:Compared with the control group, the L* value of the glazing, glazing after polishing and staining groups were significantly decreased (P<0.05). The L* value of the staining group was the lowest. The a* and b* values had no significant differences between groups (P>0.05). Compared with the control group, the ΔE values of glazing, glazing after polishing and staining groups were significantly decreased (P<0.05), and the ΔE value of the staining group was the lowest. The ΔL* values of glazing, glazing after polishing and staining groups were significantly lower than those of the control group (P<0.05), and the ΔL* value of the staining group was the lowest. Compared with the control group, only the Δb* value of staining group was decreased significantly (P<0.05). The Δa* values did not differ significantly between groups (P>0.05). These results suggest that the chairside porcelain veneers made of CEREC Blocs can obtain satisfactory aesthetic appearance by glazing and staining.

AIM: To develope a reversed-phase high performance liquid chromatographic method for the quantitative determination of chlorogenic acid and caffeic acid in Shegan Kangbingdu Injection. METHODS: The operation was carried out in the Kromasil ODS column with the mobile phase consisting of a mixture of water-methanol-acetonitril aceti acid(95∶10∶5∶2,v/v),in which the flow rate of 1.0 mL/min and UV detection wavelength at 326 nm were set to determine the contents of chlorogenic acid and caffeic acid. RESULTS: There were good linear relations between the concentrations and the peak-areas of chlorogenic acid and caffeic acid.The relative standard deviation of peak areas for chlorogenic acid or caffeic acid were 0.60%,0.32%,respectively.The two kinds of standard solutions were both stable in 16 h(RSD=0.54% for CGA,0.11% for CFA).The average recovery was 100.1%,99.6% for CGA,CFA,repectively.The detectable limit(S/N=3)was 0.012,0.020 mg/L,and the quantitative limit (S/N=10) was 0.037,0.052 mg/L,repectively. CONCLUSION:The method is simple,sensitive,rapid and accurate,and can be used for the quality control of Shegan Kangbingdu Injection

AIM: A HPLC fingerprint method for the quality control of Fructus Forsythiae has been established. METHODS: The chromatographic fingerprints were determined by injecting 5 ?L of the sample solution each time on a CentriSIL BDS colunm(20 cm?4.6 mm,5 ?m) with the gradient elution solvent system composed of 1% acetate acid water and 1% acetate acid acetonitrile.The flow rate was 1 mL/min,the colunm temperature was maintained at(30?0.15)℃ and the signals were acquired at 265 nm.The chromatographic fingerprints were also evaluated by the chromatographic fingerprint index(F),information index of chromatographic fingerprint(I).(RESULTS:)30 co-possessing peaks were selected as the fingerprint peaks,the similarities among samples of Fructus Forsythiae come from 10 production places and its standard chromatographic fingerprints were calculated taking coffeic acid peak as the reference peak. CONCLUSION: This method with good characteristics and specificity can be used in the quality control of Fructus Forsythiae.