Objective The aim of this study was to observe the dynamic changes of serum and bone marrow levels of alkaline phosphatase ( ALP) in ovariectomized ( OVX) rats.Methods Eighty 3-month-old non-pregnant female Spra-gue Dawley rats were randomly divided into following groups by body weight:baseline group, sham-operation (Sham), and ovariectomized (OVX) rat groups.The rats were killed at 0, 3, 6, 12 or 24 weeks after operation.The changes of serum and bone marrow alkaline phosphatase ( ALP) levels were detected with photometer-721 and the number of ALP-positive bone marrow cells was detected with a research grade upright fluorescence microscope .Results In the sham group, the serum ALP levels were significantly increased in the weeks 3 until the week 6.However, the serum ALP levels were signifi-cantly decreased in the week 12 until the week 24.The ALP-positive cell number in the bone marrow was significantly in-creased in the week 3 until week 12, but significantly decreased in the week 24.In the OVX group, the serum ALP levels were significantly increased in the week 3, but significantly decreased in the week 6 until the week 24.The number of ALP-positive bone marrow cells was significantly decreased in the week 3 until the week 24.In addition, the serum ALP levels in the OVX group were significantly higher than that of the sham group .However, the number of ALP-positive bone marrow cells was significantly lower than that of the sham group .Conclusions The change tendency of serum ALP in the sham group is similar with that of bone marrow cells .But the change tendency of serum ALP in OVX rats is different from that of bone marrow cells .

Objective The aim of this study was to observe the effects of whole-body vertical vibration, treadmill exercise, genistein administration and estrogen injection on the uterus weight index and uterus histology as well as the ex-pression of glycogen synthase kinase ( GSK-3β) protein in the uterus of ovariectomized osteoporotic rats.Methods Sev-enty-two healthy 3-month old female SD rats were randomly divided into two groups by body weight:sham-operation group (Sham) and ovariectomized group (OVX).At 10 weeks after OVX operation, the OVX rats were randomly divided into the following five groups by body weight: OVX group, whole-body vertical vibration group (WBVV), treadmill exercise group ( TX) , genistein group ( G) and 17β-estrogen group ( E2 ) .Then they were treated with different methods according to the experiment design.At the end of experiment, the uterus weight was measured with an electronic balance.The uterus histology was observed with HE staining and the expressions of GSK-3βand P-GSK-3βproteins were detected by Western blot.Results Apart from E2 treatment, all the other three treatments did not increase the uterus weight and the thickness of endometrium compared with that in the OVX rats.Apart from genistein treatment, all the other three treatments increased the ratio of protein expression of P-GSK-3βto GSK-3βcompared with that in the OVX rats.Conclusions Both whole-body vertical vibration and treadmill exercise can stimulate the phosphorylation of GSK-3βin the uterus of OVX osteoporotic rats.However, genistein has no such stimulation effect.

123 cases were treated by Chinese herbs, with 17 cases treated by western drugs as control for comparison. Results showed that the average days of abatement of fever and the duration of disappearance of vesicular rale in the treating group were superior to the control group (P

Objective:To compare the models of guinea pig allergic rhinitis induced by different allergens. Methods: Ovalbumin (OVA), 2,4-tolylene diisocyanate (TDI) and alternariaalternata was respectively used as the allergens to establish the model of guinea pigs allergic rhinitis. The conformity of the models and human allergic rhinitis was studied through the behavioral indices, such as the times of nose itches, nasal discharge flow, histological properties and serum HA and IgE indices. Results:The times of sneezing and scratching nose, serum HA and IgE in OVA group was significantly different from those in the control group (P<0. 001 or P<0. 01). Conclusion:The models of allergic rhinitis induced by OVA are the same as allergic rhinitis in typical symptoms and pathological changes.

Objective Using serum pharmacology method to assess the optimal dose of Rhodiolasachalinensis extract (RSE)and Codonopsispilosula extract (CPE)combination as well as the effects of the combination on the immune function of mice.Methods Using the 3×3 facterial design,nine medicated serum of CPE and RSE mixture were made to assess the optimum combinational dose of CPE and RSE by detecting the T,B lymphocyte proliferation abilities and NK cell activity in vitro .Using the optimum combinational dose and reducing 2.5,5 and 10 times as high,middle and low doses of RSE+CPE groups,and the T,B lymphocyte proliferation abilities and the activity of NK cells in the mice were detected in vivo .Results The result of serum pharmacology indicates that compared with control group,the proliferation abilities of T,B lymphocytes and the activity of NK cells inducing by ConA and LPS in 200 mg· kg-1 RSE + 790 mg· kg-1 CPE group were increased (P < 0.05).The result of in vivo experiment indicated that compared with cyclophosphamide group,the spleen indexes (SI)in middle and high doses of RSE+CPE groups were significantly increased (P <0.05);compared with low dose of RSE+CPE group,the WBC number in middle dose of RSE + CPEgroup was significantly increased (P < 0.05 ). Compared with cyclophosphamide group,the T and B cell proliferation abilities induced with ConA and LPS and killing activities of NK cells in low,middle and high doses of RSE+CPE groups and positive drug CVT-200 group were significantly increased (P <0.05).Compared with CVT-200 group,low and high doses of RSE+CPE groups,the T and B cell proliferation abilities induced with ConA and LPS and the activity of NK cells in middle dose of RSE+CPE group were significantly increased (P <0.05).Conclusion RSE and CPE mixture can enhance the immune function of mice;RES 200 mg·kg-1 and CPE 790 mg·kg-1 are the optimal doses.

Objective To study the effects neuromuscular electrotherapy and kinesitherapy on brachial plexus palsy. Methods 20 patients with brachial plexus palsy accepted neuromuscular electrical stimulation on involved muscles, and were followed up for 18～58 months. Other 17 patients accepted neurolysis alone were as control. Results The function of shoulder and elbow in electric stimulation group was significantly superior to that of control (P<0.01). Conclusion Neuromuscular electrotherapy combined with kinestherapy is effective on the brachial plexus palsy.

Objective To investigate the short-term acute rejection incidence of the recipients under the steroid-free immunosuppressive therapy after liver transplantation. Methods This retrospective study included 186 patients who were divided into two groups by random number table.The patients in no steroid group (the study group, n =94) received tacrolimus (Tac) with mycophemolate mofetil (MMF) or cyclosporine with MMF,and those in the steroid group (the control group,n =92) received the aforementioned immunosuppressive therapy combined with steroids.The acute rejection incidence was analyzed during six months post-transplantation.Results There was no significant difference in the gender,age,indication for transplantation,Child-Pugh score,MELD score,operating time,bleeding and transfusion volume during the operation,warm ischemia time and cold ischemia time between the two groups (P＞0.05).Liver biopsy was done on 9 cases of each group.The acute rejection incidence had no significant difference between the study group and the control group (5/94 vs 4/92,5.3％ vs 4.4％,P＞0.05).Conclusion The steroid-free immunosuppressive therapy after liver transplantation did not increase the short term acute rejection incidence.

BACKGROUND: The characteristics of cervical anatomy and pedicle screw, operational specification, and individual screw implantation are the key factors of a successful implantation treatment.OBJECTIVE: This study was designed to investigate the cervical pedicle screw and host response as well as the recovery of spinal nerve functions during the surgery and follow-up period of cervical spine fracture-dislocation.DESIGN: A case analysis.SETTING: Department of Orthopaedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Shenyang, Lianning Province, China.PARTICIPANTS: A total of 41 patients with cervical spine fracture-dislocation, who have complete follow-up data, were admitted to the Department of Orthopaedics, General Hospital of Shenyang Military Area Command of Chinese PLA between February 2002 and February 2006. Of the included patients, 18 were complicated by spinal cord injury (according to Frankel classification system, 6 were graded as A, 1 as B, 4 as C, and 7 as D.METHODS: Forty-one patients with cervical spine fracture-dislocation were treated by implanting a screw through the cervical pedicle and fixing it. Prior to surgery, all patients were subjected to X-ray, CT and MRI examinations. According to measurements, each cervical pedicle screw was individually implanted. The entire surgery was accomplished by Xiang Liang-bi, chief physician, whose qualification corresponds to the responsibilities.MAIN OUTCOME MEASURES: Material and host response during and after screw implantation as well as in the follow-up period. Recovery of spinal nerve function after screw implantation.RESULTS: All patients were followed up for 6-12 months and all incisions were healed primarily. Material and host response during the process of screw implantation: A total of 218 screws were implanted. After initial implantation, 12 screws were loosened, and such a phenomenon disappeared in 11 screws by adjusting inserting point and inserting direction or/and increasing screw diameter or length. The remaining 1 screw was stabilized by increasing the fixed segments. After drilling, poles of 10 screws bled much and treated by hemostasis. C1-2 venous plexus hemorrhage was caused in 3 patients and stopped by compression, and Apofix internal fixation was used in 1 of 3 patients due to unclear surgical visual field. Material and host response after surgery and during the follow-up: A total of 218 screws were inserted. Of the 218 screws, 196 were in correct position, and 22 were deviated to different degrees. Deviation of 1 screw caused injury to nerve root and that of another screw led to injury to blood vessel. Thirty-eight patients acquired satisfactory reduction and bone union. Three patients presented with symptoms of nerve root irritation due to incomplete reduction in the old fracture-dislocation. Among the 3 patients, 1 was subjected to anterior approach due to screw removed, and neither injury to vertebral artery, spinal cord, and nerve root nor internal fixation destroy was found in any other patients. Recovery of spinal nerve function after implantation: Among the 18 patients complicated with spinal cord injury, 6 patients, who were assessed as grade A spinal cord injury, did not exhibit improvement in spinal cord function, while the remaining 12 presented with 1 or 2 grades of improvement.CONCLUSION: There is a lower probability for biocompatibility reaction, and spinal nerve function recovers better after implantation of cervical pedicle screw. So implantation of a cervical pedicle screw system is an effective and relatively safe method for treatment of cervical spine fracture-dislocation.

Objective To reveal the role of serum ACE2/Ang (1-7)in the occurrence of atrial fibrillation (AF)and find new targets for the prevention and treatment of AF by analyzing the correlation between the serum concentration of ACE2/Ang (1-7 )in patients with rheumatic valvular heart disease and the occurrence of AF. Methods We collected the basic clinical information and peripheral venous blood of patients with rheumatic heart valve disease (totally 46 patients,including 24 with AF and 22 with SR).ELISA method was used to detect the serum concentration of ACE2,Ang (1-7)and AngⅡ in the serum samples.Then the differences and correlation between the two groups were analyzed.Results In the AF group ① the diameter of the left atrium was significantly greater than that in the SR group [(60.70±3.08 vs.48.15±2.16)mm,P<0.05];② the serum concentration of AngⅡ was significantly higher than that in the SR group [(45.88±2.87 vs.35.78±1.08)pg/mL, P<0.05],AngⅡ and left atrium diameter were positively correlated (Pearson test,P<0.05);③ the serum concentrations of ACE2 [(7.87±0.74 vs.11.65±0.57)U/L,P<0.05]and Ang (1-7)[(146.05±17.61 vs. 321.71±36.50)pg/mL,P<0.05]were significantly lower than those in the SR group,and negatively correlated with left atrium diameter (Pearson test,P<0.05);④ the serum concentration of Ang (1-7)was negatively correlated with AngⅡ concentration (Pearson test,P<0.05).Conclusion For patients with rheumatic valvular heart disease,ACE2/Ang (1-7 )may play a protective role in the occurrence of AF via antagonizing AngⅡ and inhibiting atrial remodeling.