Objective:To observe the effects of osteoprotegerin on osteoclasts in the occlusal tissue during tooth eruption in dog and analyze the mechanism. Methods: Six 7-day-old brood dogs were divided randomly to control and osteoprotegerin groups. The dogs in osteoprotegerin group were injected with osteoprotegerin for 3 days 1.5 mg/(kg?d). 5 days after injection the dogs were sacrificed and mandible were taken out for paraffin slice. The number of the osteoclasts in the occlusal tissue up the third mandibular premolar was detected by tartrate-resistance acid phosphatase(TRAP) staining. Immunohistochemistry was used to examine the expressions of RANKL. Results: The number of osteoclasts in osteoprotegerin group was less than that in the control group (P

Three-dimensional (3D) fluorescence spectra and thin layer fluorescence chromatogram of common Camptotheca fruit (CCF) crude drug, camptothecin (CPT) and 10-hydroxycamptothecin (HCPT) have been studied, and a novel fluorimetric method for determination of CPT in CCF crude drug has been established. In 3D fluorescence spectra, CPT presented 3 fluorescence peaks with excitation wavelengths lambdaex of 215, 255 and 365 nm, separately, and all peaks with emission wavelength lambdaem of 430 nm. HCPT presented 4 fluorescence peaks with lambdaex of 220, 265, 325 and 375 nm, separately, and all peaks with lambdaem of 555 nm. The fluorescence of CPT is much stronger than that of HCPT. Comparison of 3D fluorescence spectra and analysis of thin layer fluorescence chromatogram revealed that the main fluorescent component of CCF is CPT. HCPT and other components basically do not interfere with the fluorescence of CPT. Under the condition of pH 3.0-6.7, CCF aqueous solution can produce strong and steady fluorescence. Using methanol as solvent, the extracting solution of CCF was prepared, and diluted properly with water, then measured fluorescence intensity at lambdaex/lambdaem = 365/430 nm to determine the content of CPT. A linear calibration curve covered the concentration range 0.002 35-0.235 microg x mL(-1). The regression equation was IF = 9 + 30,844 c, with correlation coefficient r = 0.999 (n=9). The method has been applied to the analysis of CPT in a CCF sample, with a result of 0.127% and a spiked recovery rate of 102%. The reliability of the method has been verified by a thin layer chromatography-fluorescence scanning method. Experimental results demonstrated that this method can be used for quality evaluation of CCF crude drug.

Objective To study the angiographie characteristics of coronary heart disease (CHD) patients with type 2 diabetes mellitus.Methods 292 patients with CHD underwent a selective angiography were selected,the characteristics of coronary arteriongraphy were compared in CHD patients with type 2 diabetes mellitus and nondiabetic group.Results In type 2 diabetes mellitus group,the degree of stenosis was higher than that in nondiabetic group (78.01% vs 52.32% )(P < 0.05 ), and the rate of three-vessel disease was higher than that in nondiabetic group (59.57% vs 36.42% )(P <0.05).Conclusion The angiographic characteristics were different in CHD patients with or without type 2 diabetes mellitus.Patients with type 2 diabetes mellitus was associated with more severity of lesion and more lesion vessel.

Objective To investigate the effect and mechanism of the icaritin on the human cronic myeloid leukemia K562 cells. Methods The K562 cells at logarithmic growth phase were divided into the control group and the icaritin group. The cells in the control group were normally treated and the cells in the icaritin group were incubated with 8 μmol/L icaritin. Methyl thiazolyl tetrazolium (MTT) method and flow cytometry were used to examine the proliferation and apoptotic changes in the two groups after incubation for 72 h, respectively. Gene expression of p85 and Akt were detected by RT-PCR. The protein changes of p85, Akt, p-p85, p-Akt cleavage-caspase-3 and caspase-3 were detected by Western blot. Results Compared with the control group, the proliferation rate of K562 cells in the icaritin group was significantly decreased (P<0.05), however the apoptotic rate of K562 cells and the expressions of p-p85, p-Akt, cleavage-caspase-3 in the icaritin group were significantly increased (all P< 0.05), but the expressions of p85 mRNA, Akt mRNA and caspase-3 protein had no difference (all P> 0.05). Conclusion Icaritin could induce the proliferation and promote the apoptosis of K562 cell, and its mechanism may be achieved through activating the PI3K-Akt signal transduction pathway.

Objective To analyze the clinical data of Staphylococcus aureus sputum culture positive cases and the antimicrobial susceptibility of Staphylococcus aureus strains isolated from them and provide the evidence for clinical diagnosis and treatment. Methods Retrospectively analyze the clinical data of Staphylococcus aureus sputum culture positive cases of our hospital from January 2014 to December 2014. Results The Staphylococcus aureus sputum culture positive cases was 111 in all, while antimicrobial sensitive test was performed in 110 cases, including MSSA in 27 cases (24.55%), MSRA in 83 cases (74.45%), community infection MSRA in 13 cases (15.66%), hospital infection MRSA in 70 cases (84.34%). The cases were mainly from the department of respiratory diseases, department of neurosurgery, ICU, the department of neurology, accounting for 75.68%. The risk rate of community acquired MRSA in patients from nursing center were significantly higher than that of hospital infection MRSA and MSSA (P = 0.004). The antimicrobial susceptibility rate of community infection MRSA to clindamycin, gentamicin, erythromycin, azithromycin was higher than that of hospital infection MRSA. Conclusion The susceptibility rate in non-β-lactams of community infeciton MRSA was higher than that of hospital infection MRSA.

Objective To observe the effect and the influence on carotid atherosclerotic plaques,C-reactive protein,lipids,coagulation of atorvastatin and xuesaitong injection in the treatment of elderly patients with acute cere-bral infarction.Methods 100 elderly patients with acute cerebral infarction met inclusion criteria were randomly divided into 50 cases of the observation group and 50 cases of the control group,the control group were given conven-tional therapy,the observation group were given atorvastatin and xuesaitong injection on the basis of the control group, atorvastatin calcium 20mg/d,qd,Xuesetong 400mg/times,qd,both groups had been treated for 3 weeks for a course of treatment,the serum C-reactive protein,serum lipids and coagulation parameters were detected before and after treat-ment,the IMT and carotid plaque area were determined by color Doppler ultrasonography,NIHSS score were calculat-ed.Results The PT,APTT,CRP,IMT,carotid plaque area,NIHSS score of the observation group were (18.07 ± 2.24)s,(36.59 ±3.52)s,(11.2 ±3.6)mg/L,(0.57 ±0.16)mm,(1.36 ±0.32)cm2,(9.31 ±2.06)point,the observation group were (15.24 ±1.88) s,(31.84 ±2.55) s,(26.4 ±6.7) mg/L,(0.68 ±0.13) mm,(1.55 ± 0.37)cm2,(15.86 ±2.25)point,both groups were significantly improved after treatment than before treatment (all P<0.05),The total efficiency of observation group and control group were 96%and 72%,the observation group was significantly higher than those of the control group, the difference was statistically significant (χ2 =10.867, P <0.01).Conclusion The method containing atorvastatin and Xuesaitong injection can effectively regulate blood lipid levels and blood coagulation,inhibit vascular inflammation,Stabilizing or reversing carotid artery plaque,reduce carot-id intima-media thickness,can inhibit thrombosis and progress,improve cerebral hypoxia and ischemia parts neurologi-cal defects,improve clinical outcomes,significantly improved clinical outcomes.

Objective To investigate the levels of transformation growth factor-β1 (TGF-β1),vascular endothelial growth factor (VEGF) and insulin growth factor-Ⅰ (IGF-Ⅰ) role in the pathogenesis of serum of patients with combined pulmonary fibrosis and emphysema (CPFE).Methods Recruited 20 patients with CPFE,40 cases with idiopathic pulmonary interstitial fibrosis (IPF) and 40 cases with emphysema who were admitted to our hospital during July 2011 to February 2012.Serum levels of TGF-β1,VEGF and IGF-Ⅰ were detected by ABC-ELISA.Results Serum levels of TGF-β1 and IGF-Ⅰ were significantly higher in patients with CPFE and IPF than these in patients with emphysema (TGF-β1:(160.73 ± 40.62) ng/L vs.(167.35 ± 42.82) ng/L vs.(128.75 ±35.77) ng/L; IGF-Ⅰ:(179.65 ±60.73) ng/L vs.(192.32 ±58.75) ng/L vs.(148.73 ±49.67) ng/L,P ＜ 0.05 or P ＜ 0.01).The IPF group had significantly higher serum level of VEGF than the emphysema group ((506.12 ±82.37) ng/L vs.(437.31 ±62.58) ng/L,P ＜0.01).Serum levels of TGF-β1 and IGF-Ⅰ in CPFE and emphysema groups were positively correlated (r =0.885,0.918 respectively,P ＜ 0.01).Smokers in the CPFE group had significandy lower level of serum VEGF than those who did no smoke ((406.19 ± 66.94) ng/L vs.(482.88 ± 79.91) ng/L,t =-2.287,P =0.035).Conclusion Serum level of VEGF increased significantly in the IPF group,suggesting the participation of VEGF in pulmonary interstitial fibrosis.IGF-Ⅰ involved in the pathogenesis of pulmonary interstitial fibrosis.TGF-β1 and IGF-Ⅰ have a positive linear regressive relationship,which indicates that they may work synergistically in the process of the fibrosis.

[Objective] To observe the effects of Yun-Pi Prescription of different doss on endurance of rats with splenic asthenia and to explore the mechanism of Yun-pi Prescription in treatment of children apositia.[Methods] To set up the animal model of splenic asthenia with reserpine.Experimental rats were randomly divided into six groups:the control group,the model group,the positive control group.Xiao Shi Jian Er Syrup,and Yun-Pi Prescription treatment groups including high,middle and low dose.Changes of body weight,food intake and swimming time were measured to determine the endurance of rats.[Results] Yun-Pi Prescription could increase body weight and food intake,prolong the swimming time of splenic asthenia rats.[Conclusion] Yun-Pi Prescription could effectively counteract fatigue and improve endurance of rats with splenic asthenia and it is useful in treatment rats with splenic asthenia.

Objective To observe the therapeutic effect of external application of herbal medicine for ankylosing spondylitis(AS).Methods Two hundred and seventy-nine AS patients were randomized into group A(N=175)and group B(N=104).The two groups received oral use of sulfasalazine,and group A additionally received external application of herbal medical ointment(mainly composed of Pheretima,Squama Manis,Rhizoma Dioscoreae Nipponicae,Radix Rehmanniae Preparata,Rhizoma Cibotii,Cortex Eucommiae,Radix Dipsaci)on 3~4 pairs of bilateral acupoints of Jiaji,dressing change once every three days,for continuous 6 months.After treatment,the therapeutic effect was evaluated.The primary outcome measures of health general score(BAS-G),disease activity index(BASDAI),function index(BASFI),Likert four-grade scores of general pain and rachialgia,duration of morning stiffness,general assessment by physician were observed before and after treatment.The secondary outcome measures of occiput to wall distance,finger to floor distance,chest expansion,Schober's test,spinal movement,"4"shape test were compared.The changes of erythrocyte sedimentation rate(ESR),C-reactive protein(CRP),complements 3 and 4(C3 and C4)as well as the adverse actions were also observed.Results After treatment,46 patients were clinically relieved,65 markedly effective,52 effective,12 ineffective,and the total effective rate was 93.14% in group A;11 patients were clinically relieved,27 markedly effective,48 effective,18 ineffective,and the total effective rate was 82.61% in group B.The difference of the therapeutic effect was significant between the two groups(P