Objective To investigate the effect of tanshinone ⅡA on growth and apoptosis in human hepatoma cell line BEL 7402 in vitro . Methods The human hepatoma cell line BEL 7402 was treated with tanshinone ⅡA at various concentrations for 72 h. Cytotoxicity was evaluated by MTT assay, apoptosis related alterations in morphology ascertained by cytochemical staining(Hoechst 33258) and transmission electron microscopy(TEM). Apoptotic rate was quantified by flow cytometry (FCM). Results Tanshinone ⅡA inhibited the growth of hepatoma cells in a dose dependent manner, with IC 50 values of 6.28 ?g/ml. After treatment with 1～10 ?g/ml tanshinone ⅡA for 72 h, BEL 7402 cell apoptosis with nuclear chromatin concentration and fragmentation as well as cell shrinkage and the formation of apoptotic bodies were observed. FCM analysis showed hypodiploid peaks on histogram and the apoptotic rates at 5 ?g/ml concentration for 12, 24, 36, 48 and 72 h were (2.32?0.16)%, (3.01?0.35)%, (3.87? 0.43 )%, (6.73?0.58)% and (20.85?1.74)% respectively, which were all significantly higher than that of control group (1.07?0.13)%. Conclusion Tanshinone ⅡA can induce the apoptosis of human hepatoma cell line BEL 7402 in vitro , which may be related to the mechanism of growth inhibition of the human hepatoma cell line.

Objective To study the relationship of the polymorphism of endothelial nitric oxide synthase (eNOS) gene and blood pressure, lipid profiles and blood sugar level. Methods Totally 184 essential hypertension patients and 196 matched health individuals with normal blood pressure were subjected in this study. Their age, sex and BMI were recorded and eNOS Glu 298 Asp gene polymorphism were detected in using PCR-RFLP. Lipid profiles, including triglycerides (TG), total cholesterol (CHO), HDL, LDL, and blood sugar level were also detected. Results Significant difference of the percentage of eNOS Glu 298 Asp gene were observed in age, systolic blood pressure, BMI group (P

Objectives A rat model sciatic nerve crush injury was reproduced in rat,and behavioral changes,pain threshold,thermal withdrawal latency(TWL)and the changes in c-fos expression in cornu dorsale medullae spinalis were examined,and the relationship between peripheral nerve regeneration and hyperpathia was explored.Methods 40 male Wistar rats weighing 180-200g were randomly divided into sciatic nerve injury group(group A,n=20)and sham-operation group(group B,n=20).The right sciatic nerve of rats in group A was crushed with a hemostat in the middle of the nerve for 30 seconds,until the nerve appeared translucent.The right sciatic nerve of rats in group B was only exposed without crush injury under the same anesthesia.Behavioral response,pain threshold and TWL were assessed on 18,21,24,27,30,33,36 and 39d after operation.c-fos expression was examined immunohistochemically on 21,27,33 and 39d after operation after rats were euthanized.Results The cumulative pain scores of group A were higher than those of group B at every time point(P

Purpose　To evaluate the effects of ambroxol on prevention of premature babies with hyaline membrane disease(HMD) with prenatal corticosteroids.　Methods　Premature neonates gestational age 26-36 weeks were divided into two groups,receiving:(1) Ambroxol 30 mg/kg through umbilical vein at birth(group A,n=28) and (2) a control group not given ambroxol (group B,n=35).All the babies were exposed prenatally corticosteroids.　Results　(1) Occurrence rate of HMD in group A was 0%,group B was 11.4%,there was significant difference (P<0.05).(2) Mean fetal age of group A was 32.47+/-4.5 pregnant weeks,group B is 32.86+/-7.1 weeks.No significant difference existed.(3) Different fetal age in gruop B,such as pregnant weeks≤32,33-34,35-36,the HMD rate was separately 28.7%,15.38% and 0%,no case was found in group A.(4) There cases of 12 neonatal asphyxia happened in group B,but none of 6 in group A.　Conclusions　Definite effect can be received by applying ambroxol to prevent premature infant HMD after delivery on the bases of adenotropin before delivery.

BACKGROUND: Studies have demonstrated that dexamethasone can reduce type Ⅱ collagen and increase type I collagen in articular cartilage surface matrix, but the action mechanism of glucocorticoid to articular chondrocyte proliferation remains unclear. OBJECTIVE: To investigate the effects of dexamethasone sodium phosphate on rabbit articular chondrocytes cultured in vitro. DESIGN: Comparative observation.MATERIALS: New Zealand rabbits, 1 month old, were used for chondrocyte isolation and culture.METHODS: Rabbit articular chondrocytes cultured in vitro were randomly divided into control and experimental groups. Cells of the control group were cultured in DMEM media without dexamethasone sodium phosphate. Cells of experimental groups were cultured in DMEM media with different concentrations of dexamethasone sodium phosphate (0.02, 0.1, 0.5 g/L), respectively. MAIN OUTCOME MEASURES: Primary and passage chondrocytes were observed. Flow cytometry and immunocytochemistry were used to observe the effect of dexamethasone sodium phosphate on cell proliferation and type Ⅱ collagen synthesis. The ultrastructural changes of cultured chondrocytes were observed by transmission electron microscopy. RESULTS: The attachment and proliferation of experimental group chondrocytes was slower than control group. There average gray scale values of the experimental groups were significantly greater than the control group (P < 0.05). The cellular proportions of S phase and G_2+M phase of the experimental groups decreased but the cellular proportions of G0/G1 period increased. Under transmission electron microscope the amount of rough endoplasmic reticulum and mitochondria of the experimental groups decreased. CONCLUSION: Dexamethasone sodium phosphate inhibited articular chondrocyte proliferation, possibly due to the decrease of type Ⅱcollagen and protein synthesis ability of chondrocyte.

Objective To investigate the differences between animal temperature controller (ATC) and artificial climate chamber (ACC) used for the establishment of classical heat stroke (CHS) rat model.Methods Twenty-four male specific pathogen-free Wistar rats were randomly (random number) and equally assigned to three groups,namely room temperature control (C-C) group,heat stroke under conscious state (HS-C) group,and heat stroke under anesthesia (HS-A) group.Rats of HS-C or HS-A group were placed into ACC or ATC,then exposed to 35 ℃ heat stress.The systolic blood pressure (SBP) and core body temperature (Tc) were monitored.The time required for onset of HS was recorded.The white blood cell count (WBC) in peripheral blood and serum levels of C-reactive protein (CRP),tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β) were measured.The histopathological changes of major organs were also confirmed by hematoxylin-eosin (HE) staining.Results The onset time in HS-A group was significantly shorter thanthatin HS-C group [(40.0 ± 4.3) minvs.(110.1 ± 5.3) min,P＜0.01].The SBP and Tc at this moment were lower in HS-A group [(159.1 ± 5.91) mmHg vs.(174.54 ± 5.77) mmHg,P＜0.01;(43.5 ± 0.4)℃ vs.(44.4 ± 0.2)℃,P＜0.01].TheWBC,CRP,TNF-α and IL-1 β levels of these two HS groups were dramatically elevated compared with C-C group (P ＜0.01).The inflammatory cytokines levels in HS-A group were significantly lower than those in HS-C group (P ＜ 0.01),but there was no difference in WBC between them (P ＞ 0.05).However,there was no obvious difference in histopathological change in major organ observed between HS-A and HS-C groups.Conclusions In comparison of these two methods,ATC is similar to ACC in respect of the establishment of CHS rat model.ATC is quicker in onset of HS,and more simplified and economical than ACC and could substitute ACC.

ObjectiveTo assess the clinical efficacy and safety of Aescuven forte in the young patients with craniocerebral trauma.Methods Eighty patients diagnosed with craniocerebral trauma were randomized into treatment group and control group,in which the patients were given Aescuven forte tablets 0.3 g t.i.d for 30 days and routine treatmentsrespectively.Barthel index, Mini-Mental State Examination (MMSE)scale, Glasgow Coma Scale(GCS) and other clinical parameters were used to evaluate the efficacy by comparing their values before and 30 days after treatment.Results In the Aescuven forte treatment group, 35.0％ (14/40) and 50.0％ (20/40) of the patients showed complete response and partial response with the total response rate of 85.0％ (34/40) ,while they were 20.0％ (8/40) ,52.5％ (21/40) and 72.5％ (29/40) in the control group,respectively(x2 = 18.78 ,P ＜ 0.05) .The incidence of complications in Aescuven forte-treated group was lower than that in the control group.No severe adverse events occurred.Conclusion Aescuven forte is a safe and effective vasoactive drug for the recovery of craniocerebral trauma-caused neurological disorders and mental deterioration in young patients.

In order to study the effect of tanshinone II A on growth and apoptosis in human hepatoma cell line BEL-7402 in vitro, the human hepatoma cell line BEL-7402 was treated with tanshinone II A at various concentrations for 72 h. Growth suppression was evaluated by MTT assay; apoptosis-related alterations in morphology and biochemistry were ascertained under cytochemical staining (Hoechst 33258), transmission electron microscopy (TEM), and DNA agarose gel electrophoresis. Apoptotic rate was quantified by flow cytometry (FCM). The results showed that Tanshinone II A could inhibit the growth of hepatoma cells in a dose-dependent manner, with IC50 value being 6.28 micrograms/ml. After treatment with 1-10 micrograms/ml tanshinone II A for 72 h, BEL-7402 cells apoptosis with nuclear chromatin condensation and fragmentation as well as cell shrinkage and the formation of apoptotic bodies were observed. DNA ladder could be demonstrated on DNA electrophoresis. FCM analysis showed hypodiploid peaks on histogram, and the apoptotic rates at 5 micrograms/ml concentration for 12 h, 24 h, 36 h, 48 h and 72 h were (2.32 +/- 0.16)%, (3.01 +/- 0.35)%, (3.87 +/- 0.43)%, (6.73 +/- 0.58)% and (20.85 +/- 1.74)% respectively, which were all significantly higher than those in the control group (1.07 +/- 0.13)%. It is concluded that Tanshinone II A could induce human hepatoma cell line BEL-7402 apoptosis, which may be related to the mechanism of growth inhibition.
Antineoplastic Agents, Phytogenic ; pharmacology ; Apoptosis ; drug effects ; Carcinoma, Hepatocellular ; pathology ; Cell Division ; drug effects ; Cell Line, Tumor ; Diterpenes, Abietane ; Drugs, Chinese Herbal ; pharmacology ; Flow Cytometry ; Humans ; Liver Neoplasms ; pathology ; Phenanthrenes ; pharmacology

Objective To observe the effect of a high temperature environment on IL-17 concentration , neutrophil and lymphocyte in peripheral blood of soldiers on a training task .Methods Totally 160 health training soldiers were randomly and equally divided into two groups .The test group was trained and exposed to an environment of ( 32 ±1 )℃ vs control group at ( 22 ±1 )℃ for 2 hours before the IL-17 levels in venous blood were measured and peripheral neutrophils and lymphocytes were determined.Results The body temperatures were (38.74 ±0.26),(39.23 ±0.24),and (39.51 ± 0.34)℃after training for 40 min,50 min,and 60 min under a high temperature environment , respectively, and there was a significant increase of body temperature compared to the soldiers trained under normal conditions (P <0.05).Their perceived exertion rating was 17.62 ±0.66, 18.03 ±0.56, and 18.47 ±0.84, respectively, much unlike the control group (P<0.05).After 2 hours of training under high temperature , the concentration of IL-17 was (7.12 ±4.03) pg/ml, while the number of neutrophils and lymphocytes was (6.43 ±1.27) ×109/L and (9.84 ±1.36) ×109/L, respectively in peripheral blood, significantly higher than in the control group (P <0.05).Conclusion The body temperature and rating of perceived exertion of the training soldiers are significantly elevated under a high temperature environment, and the concentration of IL-17, and the neutrophils and lymphocytes counts in peripheral blood are increased .

The present study retrospectively analyzed 13 patients with fibrous dysplasia of the adult proximal femur who received treatment at the Department of Orthopedics,Shenzhen Hospital,Peking University between March 2000 and June 2006.These patients comprised 6 males and 7 females,with an age of 21-35 years.Among 11 patients suffering from mild hip pain,6 presented with mild limping due to worsened pains,and 2 exhibited obvious manifestations of bone fracture.All patients underwent X-ray,CT examinations,and 3 were subjected to MRI examinations,prior to bone grafting and internal fixation.Monostotic lesion was observed in 10 patients and polystotic lesion in 3 patients,but endocrine disturbance was not observed in any patient.Nine patients suffered from lesions in the femoral neck and 4 from lesions in the femoral rotator.Curettage,autogenous and allogeneic bone grafting,and internal fixation with dynamic hip screws and proximal femoral nails were successfully performed in each patient.Internal fixation time averaged 165 minutes (range 120-210 minutes).During the early stage after surgery,weight-bearing activities were not permitted.Bone fracture healed after an average of 3 months.Eighteen to forty-eight months of follow-up demonstrated that clinical symptoms were relieved,with good hip joint function and basically normal gait.X-ray plains showed thickened cortical bone,as well as compacted ossification shadow in bone grafting region.In addition,partial bone absorption,but not recurrent clinically,was observed in 4 patients.These findings imply that thorough curettage,autogenous and allogeneic bone grafting,and internal fixation with dynamic hip screws and proximal femoral nails is a reliable method to treat fibrous dysplasia of the adult proximal femur and it can acquire satisfactory curative effects.