The author designed and practiced group PK teaching model in Pharmaceutical Botany combined with the ideas of educational skill training program in Peking university aiming at promoting students' learning initiative and enthusiasm as well as collective and teamwork sense.The paper discussed the concept of group PK teaching,requirements for teaching design and problems which should be noted in practice from the aspects of introduction,design and practice of the method as well as teaching effect evaluation and teaching method reflection.Survey questionnaire was used to evaluate the preliminary teaching effect of the new teaching method and to explore its teaching thought and educational idea.In practice,group PK teaching model improved students' self-learning awareness and ability,communication skills,collective and teamwork sense.

changes of galanin in the small intestines of the rats which were inflicted with acute intestinal radiation sickness (AIRS) by exposing to 20 Gy gamma rays were studied with immunocytochemistry (ICC) , HE staining of tissue sections, and microspectrophotometer. It was found that the damage of intestinal mucosa was being intensified as AIRS progressed; there no marked change of GAL-LI neurons but the arrangement of GAL-LI fibers was disordered in the irradiated rats as compared with those of the control; the galanin content of the small intestines was significantly tower in the irradiated rats than in the control especially in the 48th and 72nd hour after irradiation (P

Rational applicatioa of inorganic nitrogen to cultivated Ginseng can improve its quality and output. It was found that the optimum ratio of nitrogen to phosphate fertilizers for the cultivation of Ginseng showed be 1:1.6.

Objective To observe effect of acupuncture with combination of front and back points in the treatment of lumbar disc herniation(LDH).Methods The 64 LDH cases were randomized into the treatment group(34 cases) which was treated with the combination of front and back points and control group(30 cases) which was treated with the routine selection of points.The effect of two groups was compared to observe the Visual Analogue Scale(VAS) scores and the improvement in Japan Orthopedics Association(JOA) scores.Results After treatment the curative and remarkably effective rates in the treatment group were higher than those in the control group(P

0.05). No loosening, distortion and breaking of fusion apparatus were found. Conclusion STT arthrodesis simulated in new fusion apparatus does not show displaced even though forced the utmost movement in range of motion of extension 35?/flexion 50?, radial deviation 10?/ulnar deviation 30?. STT arthrodesis can get excellent stability using new fusion apparatus.

Objective　To establish the normal growth velocity of fetal liver length and compare them with those of intrauterine growth retardation, pregnant diabetes and maternal-fetal blood types imcopatible. Method　Three hundred and five normal pregnant women and 24, 10, 16 pathological pregnant women of intrauterine growth retardation (IUGR), gestational diabetes and maternal-fetal blood types incompatible respectively had ultrasonographic measurement of fetal liver length at 18 to 42 weeks′ gestation. Results　Normal fetal liver length has a linear relation to gestational age, and showed a significantly rapid increase after 28th week with a growth rate of 1.76 mm per week, and 1.00 mm per week before 28th week (P<0.05). The growth rate of IUGR group before and after therapy were 1.19 mm and 1.23 mm per week, significantly lower than those of normal group (P<0.05). The growth rate of pregnant diabetes group before and after therapy were 1.63 mm and 1.63 mm per week, no statistical significance with normal group (P>0.05). The growth rate of maternal-fetal blood types incompatible group before therapy was 1.98 mm, showed no difference with normal group (P>0.05), but after therapy, the growth rate of fetal liver was 1.38 mm per week, significantly lower than normal group (P<0.05). Conclusion　Dynamic measurement of fetal liver length can help us to understand whether the fetus grow well in uterus and whether the treatments are effective.

Objective To evaluate the effects of stellate ganglion block(SGB) in treating seroma after modi-fled radical mastectomy of breast cancer.Methods 76 patients were treated with SGB besides local compressed bind-ing and were evaluated after ten days.Results There were ten seroma with the incidence rate of 13.2% and no skin flap necrosis.Conclusions SGB combined with local compressed binding could treat secroma after modified radical mastectomy of breast cancer.

Synergistic Innovation is the developing trend and requirements of the times and society.Southern Medical University practiced joint mode among colleges and universities for excellent medical talent cultivation.Based on preponderant discipline and taking mechanism innovation as the key points,Southern Medical University actively explored the diversification mode of synergistic innovation.

BACKGROUND: The previous methods for the repair of tendon defect include end-to-end method, autologous tendon graft, tendon al ograft or artificial tendon transplantation, but each method has its advantages and disadvantages. OBJECTIVE: To investigate the feasibility of constructing tissue-engineered tendon by rabbit bone marrow mesenchymal stem cells as seed cells which were induced by bone morphogenetic protein 12 and with col agen-polyglycolic acid composite as frameworks in the repair of rabbit tendon defects. METHODS: Bone marrow was separated from rabbit proximal femur to harvest cells, and the cells were passaged to the second generation and induced with 10 μg/L bone morphogenetic protein 12. Then the passage 2 cells were implanted into the prefabricated tissue-engineered tendon on the polyglycolic acid stitch with certain percentage together with col agenⅠsolution. The rabbits were used to establish the Achil es tendon defect models, and different methods were used to repair Achil es tendon defect: tissue-engineered tendon, col agenⅠ-polyglycolic acid stitch and end-to-end suturing in silk. Morphology, mechanics and shistopathology of the tissue-engineered tendon were observed. RESULTS AND CONCLUSION: Pathomorphological observation of histological section after 12 weeks showed that multiple fusiform fibroblasts were homogeneously distributed in col agen in the direction of stress mechanics.Fibrocytes increased obviously, new smal vessels could be seen and col agen was found aligned compactedly. In col agen Ⅰ-polyglycolic acid stitch group, a part of fibroplasia hyperplasia accompanied by granulation tissue formation could be seen, the col age fibers were in loose filamentous network and the cells were distributed disorderly and unevenly. Granulation tissue formed around the fibrous tissue in the silk group. Biomechanics strength in bone morphogenetic protein 12+polyglycolic acid group was better than that in the col agen Ⅰ-polyglycolic acid group, and there was significant difference when compared with suture silk group. The biomechanics strength of the bone morphogenetic protein 12+polyglycolic acid group was lower than that of normal tendon. It is possible to construct a tissue-engineered tendon with autologous bone marrow mesenchymal stem cells as seed cells induced by bone morphogenetic protein 12 and with the col agen-polyglycolic acid as the framework. Constructed tissue-engineered tendon has biomechanics characteristics and can be used to repair Achil es tendon defect.