OBJECTIVE:To establish an RP-HPLC method for the quantitative determination of Gastrodin in Tianmu-jiangya tablets.METHODS:The chromatographic separation was performed on Shimadzu-C18(150mm?4.6mm, 5?m) column with a column temperature at 40℃. The mobile phase consisted of acetonitrile-water(0.5∶99.5) at a flow rate of 1.0mL?min-1. The detection wavelength was set at 221nm. RESULTS:The linear correlation of Gastrodin was achieved in the range of 0.271 2?g～1.356 0?g(r=0.999 9). The average recovery rate was 100.13%(RSD=1.89%,n=6). CONCLUSION:The method is simple, accurate and specific and with high recovery rate, and it can be used for the quality control of Tianmujiangya tablets.

Objective To investigate the relationship between hepatitis B virus (HBV) basic core promoter(BCP)/precore(PreC) mutations and severity of liver dis ease. Methods In 113 patients chronically infected with HBV, do uble mutations in BCP(T1762/A1764) and PreC mutation(A1896) were determined by INNO-LiPA and HB V genotype was determined by S gene sequencing. Results Whether in all patients or in patients infected by single genotype C, compared with AsC, the prevalence of double mutations in BCP(T1762/A1764) was higher in patients with CHB, LC and HCC[(24.1% vs 2.8%,? 2=5.93, P0.05). Conclusions The doubl e mutations in BCP(T1762/A1764 ) may be related to progressive liver disease in patients with chronic HBV infec tion.

Objective To explore the effect of early administration of alendronate (ALN) and pulsed electromagnetic fields (PEMFs) on bone mass of rats after spinal cord injury(SCI). Methods Sixty-two healthy female SD rats aged 3 months were randomly allocated into 5 groups: a Sham group, a SCI group, a SCI+ALN group, a SCI+PEMFs group and a SCI+PEMFs+ALN group. Rats in the Sham group underwent laminectomy, while the rats in the other 4 groups underwent complete spinal cord transection, and the remained 3 groups were treated with ALN and/or PEMFs 1 week after SCI. All rats were sacrificed 8 weeks after operation. The bone mineral density(BMD), biomechanical parameters of the femurs, and histomorphometric parameters of proximal tibias were mea-sured, respectively. The data were analyzed with one way-ANOVA and factorial design-ANOVA. Results After early treatment of ALN and/or PEMFs, the BMD of femur was significantly increased as compared with that of rats in the SCI group; the elastic load, maximal load of femur were significantly increased as compared with those of rats in the SCI group; the percent trabecular bone area and trabecular bone width of tibias were significantly increased when compared to those of rats in the SCI group. Conclusion Early treatments of ALN and PEMFs can reduce the loss of bone, improve biomechanical properties of the femur, and inhibit the decay of microstructure of upper part of tibia. The study suggests that ALN and PEMFs may help prevent osteoporosis after SCI.

Complications are always likely to occur in the treatment of fractures. Once fracture-related complications occur,their management will be difficuh,resulting in a long handling process that increases physical and financial pain on the patients.Fea- turing“management of fracture-related complications”,this issue intends to draw attention from orthopaedists to the challenging task of prophylaxis and treatment of such problems in clinic.Not only non-union,malunion,heterotopic ossification,bone necrosis but also such systemic complications as deep vain thrombosis,soft tissue infection and necrosis are discussed.They involve long tubular bones,pelvic,proximal femur,tibial plateau and calcaneum.Authors introduce their experience from their clinical practice which can benefit readers a lot.It is well known that an effective prevention is the best treatment.In treatment of fractures,principles must be strictly followed and preventive measures taken throughout the whole process.Once a complication has been detected,therapy should be individualized 1o gain the best outcome.

Objective To compare the effect of underwater treadmill training (UWTT), body weight support treadmill training (BWSTT) and conventional gait training (CGT) for walking ability and balance function in hemiplegic patients after stroke. Methods 43 patients were divided into CGT group (n=14), BWSTT group (n=13) and UWTT group (n=16). Based on conventional gait training, the UWTT group and BWSTT group respectively accepted UWTT and BWSTT for 4 weeks. They were assessed with Functional Ambulation Category (FAC), maximum walking speed (MWS), 6 Minute Walk Test (6MWT), and dynamic balance function and static balance function with Active Balancer before and after training. Results All the patients improved in all items after training (P<0.05), while the UWTT group improved more in the 6MWT and balance function items than the BWSTT group (P<0.05). Conclusion UWTT is more effective for hemiplegic patients after stroke in walking ability and balance function than BWSTT.

The mirror neuron system is an action observation-execution mechanism which plays an important role in many neurophysiologicalprocesses, such as action observation, action imitation, motor imagery and motor learning. It is an important neural mechanism of actionobservation therapy, motor imagery therapy, mirror therapy, virtual reality therapy and brain computer interface technology.

The Halliwick concept is a kind of aquatic kinesitherapy concept to reduce disability and improve quality of life through activities in water such as swimming. It mainly includes the Halliwick Ten-Point-Programme aimming at teaching siwmming and the Water Specific Therapy focusing on impairments of body functions or body structure. The Halliwick concept can be relatead to the International Classification of Functioning, Disability and Health very well, and its therapeutic effects has been supported by more and more evidence-based-studies.

In recent 30 years, it was approved that extracorporeal shock wave (ESW) is effective on musculoskeletal disorders. Hypertonia is a common complication in patients suffered from central nervous system lesion. Recently, there were several literatures report hypertonia can be treated with ESW. This paper reviewed the research in basic principle of ESW and its use on hypertonia.

ObjectiveTo observe the effect of early administration of alendronate on bone mineral density and biomechanical properties of the femur of spinal cord injuried rats.Methods36 3-month-old female SD rats were randomly divided into the Sham group, SCI group and SCI+ALN group. Rats in the Sham group underwent a sham procedure. Rats in the SCI group and in SCI+ALN group underwent spinal cord transection at the level of the tenth thoracic vertebra. Rats in the SCI+ALN group were injected with alendronate intraperitoneally 1 week after SCI, three times a week. All rats were sacrificed 8 week after operation. Bone mineral density and biomechanical properties of the femur were measured, respectively.ResultsBone mineral density and biomechanical properties of the femur changed significantly after spinal cord transection. After the treatment of alendronate injection, bone mineral density of the femur in the SCI+ALN group was significantly increased compared with that of the SCI group(P<0.01). Elastic loading and maximal loading of the femur in the SCI+ALN group was significantly increased compared with that of the SCI group(P<0.01). Maximal stress was significantly increased compared with that of the SCI group(P<0.05). ConclusionThe rats 8 week after spinal cord transection can be used in osteoporotic research following SCI. Early administration of ALN after SCI can inhibit bone resorption, improve biomechanical properties of the femur of spinal cord injured rats so as to prevent the development of osteoporosis and osteoporotic fracture.