Objective:To comprehensively evaluate the intrinsic and external quality, and explore the grading of gypsum pieces. Methods:The characteristics, contents of main components and trace elements and X-diffraction exclusive characteristic peaks of gyp-sum pieces from different origins were detected. Combined with the market grading, the grading standard for gypsum pieces was further improved. Results:According to the tested indices, gypsum pieces were graded into two classes:excellent pieces and common decoc-tion pieces. Conclusion:The study shows reference value for guiding the market grading of gypsum pieces.

Objective:To establish the quality standard for Tiaojing Zhuyun granules .Methods:A TLC method was used for the qualitative identification of main ingredients of Cornus officinalis and Angelica sinensis, and an HPLC method was used for the determi-nation of loganin in Tiaojing Zhuyun granule with SinoChrom ODS-BP (250 mm ×4.6 mm,5μm) as the analytical column .The mobile phase was composed of acetonitrile-0.1%phosphric acid solution (14∶86) at a flow rate of 1.0 ml· min-1 .The detection wavelength was set at 240 nm and the column temperature was 30℃.Results:The corresponding spots in the granule were clear without any inter -ference from the negative control .The calibration curve of loganin was in good linearity over the range of 50 .40-1008 .00 ng ( r =0.999 9).The average recovery was 98.02%(RSD=2.51%,n=6).Conclusion:The method is simple,feasible and reproducible, which can be used for the quality control of Tiaojing Zhuyun granules .

Objective To analyze the clinical effect of the bone grafting pedicled with femoral quadratus for the osteonecrosis of femoral head.Methods The clinical operation data were analyzed from 355 patients with osteonecrosis of femoral head underwent by the surgery of the bone grafting pedicled with femoral quadrates in the First Affiliated Hospital of Zhengzhou University from August,2006 to June,2013.According to association research circulation osseous (ARCO) classifying,41,126,115,62,6 and 5 patients were in stage Ⅰ-C,Ⅱ-A,Ⅱ-B,Ⅱ-C,Ⅲ-A,and Ⅲ-B.The results were evaluated by the hundred forked method.Results All the patients obtained the outpatient followed-up after operation,the follow-up time was 1-8 (4.3 ± 1.8) years.The pain of the hip,the function of the joint,the motion of hip joint,and the X ray evaluation became better than preoperations.There were statistically significant differences in the healing time among all the age patients (P ＜ 0.05),along with the age growth,the healing time gradually extended.Compared with that before operation,the scores of all the stage patients after operation were higher (P ＜ 0.05).The rate of excellent and good results were 98.5％,98.0％,92.3％,89.7％,83.5％,81.3％ in stage Ⅰ-C,Ⅱ-A,Ⅱ-B,Ⅱ-C,Ⅲ-A,and Ⅲ-B,the excellent and good rate was 93.8％ of all the 355 patients.Conclusion Bone grafting pedicled with femoral quadratus is effective surgical method for the osteonecrosis of femoral head.

Gypsum as a common mineral medicine is widely used in clinics, which is mainly used for the treatment of all kinds of fever. Through reviewing the historical document records of gypsum, the effects of the mineral resources and production process on the quality, and the quality studies were investigated in order to guide the production process,the preparation process and decoction pieces classification of gypsum, and further expand the effective application of gypsum in clinics.

Objective: To establish the quality standard for Ehong capsules.Methods: A TLC was adopted to identify safflower, pueraria and prepared Radix Polygoni Multiflori.The contents of hydroxyl-safflor yellow A and puerarin in Ehong capsules were determined by a dual wavelength HPLC.A Wondasil C 18-WR (250 mm× 4.6 mm ,5 μm) was used as the analytical column, the mobile phase was composed of methanol acetonitrile-0.7% phosphoric acid aqueous solution (16∶3∶81), the flow rate was 1.0 ml·min-1 ,the detection wavelength was 403 nm for hydroxy safflower yellow A and 250 nm for puerarin.The column temperature was 30℃.Results: The TLC spots were clear and well-separated without negative interference.The calibration curves of hydroxyl-safflor yellow A and puerarin were linear over the ranges, the average recovery was 101.02% and 100.03% , and the RSD was 1.43% and 2.40% (n =6), respectively.Conclusion: The method is fast and accurate with good specificity, which can be used for the quality control of Ehong capsules.

Objective　To investigate morphological changes of endothelial cells after nordihydroguaiaretic acid (NDGA) treatment in vitro. Methods　The morphological changes of human umbilical vein endothelial cells (HUVEC) cell line ECV-304 and the cell apoptosis rate in sub-G0 phase were observed with invert, light and electron microscope and flow cytometry after NDGA treatment at different concentrations or with PBS (0.01 mol/L) as control. Results　①After the treatment of NDGA at 50～200 μmol/L for 1～3 d or up to 8 d at 100 μmol/L, ECV-304 cells tended to elongate into a shuttle-like sparse appearance and those in mitosis were decreased, indicating the suppression of cell proliferation. All these alteration was in a time-and dose-dependent manner. ②NDGA-treated ECV-304 cells displayed morphological features of apoptosis, especially at the 48th h after the treatment. With flow cytometry, the cells in sub-G0 phase were significantly increased, and reached its peak at hour 12 (20.42%) after NDGA treatment. In addition, the degeneration and necrosis of ECV-304 cells were related to the concentrations of NDGA. Conclusion　NDGA can inhibit the proliferation and growth of endothhelial cells, and induce apopotosis, which might also inhibit angiogenesis.

Objective　To explore the effect of nordihydroguaiaretic acid (NDGA) on the expressions of vascular endothelial growth factor (VEGF) and its receptor, kinase-inserted domain containing receptor(KDR) and the possible mechanism. Methods　The expression of VEGF in human malignant glioma cell line SHG-44 and that of KDR in human umbilical vein endothelial cell (HUVEC) line ECV-304 were observed 1～3 d after NDGA treatment with immunohistochemistry, in situ hybridization and image analysis. Results　The expression of VEGF was declined at protein or mRNA levels in SHG-44 cells after treated with 100 μmol/L NDGA for 1 to 3 d. The expression of KDR in endothelial cells with 100 μmol/L NDGA treatment for 1 to 3 d was decreased too, in a more obvious way compared with the decline of VEGF expression in SHG-44 cells. Conclusion　The results suggest that NDGA inhibits the expression of VEGF in glioma cells as well as that of VEGF receptor KDR in endothelial cells, which may be the important molecular mechanism of anti-angiogenesis of NDGA.

Objective To explore the effectiveness of ipsilateral autologous semitendinosus ten don graft in treatment of lateral ankle ligament injuries and ankle instability. Methods Two patients including one male (25 years old) and one female (17 years old) with chronic lateral instability of the ankle were enrolled in the study. Both patients had the history of repeated ankle sprain in supination position and had grade Ⅲ injury of the lateral ankle ligament according to the American College of Foot and Ankle Surgeons Grading System. Anterior drawer test and talar tilt test were all positive. The stress-inversion radiograph demonstrated the average inclination of the talus for 21 ° and the lateral radiograph demonstrated anterior dislocation of the talus. The chronic ankle instabilities in two patients were treated by using the ipsilateral autologous semitendinosus tendon graft to reconstruct the lateral ankle ligament. Results The two patients were followed up for mean eight months, which revealed that the active and passive range of motion was good, with no pain or swelling. The anterior drawer test and talar tilt test were all negative. The stress-inversion radiograph demonstrated that the average inclination of the talus was less than 5°, with no anterior dislocation of the talus. According to the Mazur grading system, the clinical outcome was excellent in one patient and good in one. The two patients were satisfied with the stability of the ankle. Conclusions ( 1 ) Lateral ankle ligament injury is a common cause of chronic ankle instability,even the ankle osteoarthritis. ( 2 ) Brostr(o)m method can attain satisfactory result for fresh lateral injury of the ankle, but not for the old injuries. ( 3 ) Ipsilateral autologous semitendinosus tendon graft is simpleand effective for treatment of lateral ankle ligament injuries and chronic ankle instability and may play an important role in the treatment of lateral ankle instability and prevention of the occurrence of ankle osteoarthritis.

Objective:To establish the quality standard for Qingchang mixture.Methods:TLC was adopted to identify angelica sinensis,paeoniae radix and phellodendri cortex.HPLC was used to determine the content of ferulic acid on a Wondasil C18 (250 mm×4.6 mm,5 μm) analytical column,the mobile phase was composed of acetonitrile-0.1% phosphoric acid solution(17∶83),the flow rate was 1.0 ml·min-1, and the detection wavelength was 316 nm and the column temperature was 30℃.Results:The TLC spots were clear and well-separated without any negative interference.The calibration curve of ferulic acid was in good linearity over the range of 39.6-316.8 μg·ml-1(r=0.999 9),the average recovery was 98.75% and RSD was 1.21%(n=9).Conclusion:The method is fast and accurate with good specificity,which can be used for the quality control of Qingchang mixture.

Objective:To establish the quality standard for Huayu pills. Methods:TLC was adopted to identify salvia miltiorrhi-za, rhubarb charcoal and panax notoginseng; the contents of tanshinoneⅡA , chrysophanol and physcion in Huayu pills were deter-mined by RP-HPLC with Wondasil C18 (250 mm × 4. 6 mm,5μm) as the analytical column, the mobile phase was composed of metha-nol-0. 1% phosphoric acid solution (85 ∶15), the flow rate was 1. 0 ml·min-1,the detection wavelength was 254 nm, the column temperature was 35℃, and injection volume was 10 μl. Results:The TLC spots were clear and well-separated without any negative in-terference; the calibration curve of tanshinoneⅡA , chrysophanol and physcion was linear over the range of 0. 212-2. 12 μg ( r =0. 999 9),0. 159-1. 59 μg(r=0. 999 9) and 0. 072 6-0. 726 μg(r=0. 999 9), the average recovery was 99. 55 %, 99. 56% and 100. 60%, and RSD was 1. 57%,2. 26% and 2. 28%(n=6), respectively. Conclusion: The method is fast and accurate with good specificity, and can be used for the quality control of Huayu pills.