Objective: To investigate the effects of bovine plasma fibronectin on the proliferation and differentiation of rat osteoblasts. Methods:Rat osteoblasts were cultured and identified. AlamarBlue were used to determine the effect of various concentration of bovine plasma fibronectin on the proliferation of the osteoblasts. ELISA method was used to determine the alkaline phosphatase activity of the cells. Results: Fibronectin stimulated the proliferation of rat osteoblasts at 40 ?g/ml (P

OBJECTIVE:To find out the main problems about quality supervision over Chinese herbal pieces and effective su-pervision strategies. MEDTHODS:First,static and dynamic models of the game between the enterprises engaged in the production and business of Chinese herbal pieces and local food and drug administration were respectively established,to which pure strategy Nash equilibrium analysis and mixed strategy Nash equilibrium analysis were made. Next,the model of the game between the supe-rior regulatory authorities and the basic-level regulatory authorities was established,to which mixed strategy analysis was made to find out the supervision factors relevant to the quality safety of Chinese herbal pieces. RESULTS & CONCLUSIONS:Based on the current situation of quality supervision over Chinese herbal pieces and the analysis results of the game models,it is suggested that at present the Chinese herbal medicine regulatory authorities of China should work hard to promote the reform of the supervision system,reduce supervision cost(including the guidance of the large-scale and centralized production of Chinese medicinal materi-als and unified appliance of approval number to the administration of Chinese herbal pieces),establish a systematic and comprehen-sive system of rewards and punishments,create a professional supervisor staff(including the strengthening of basic-level supervisor staff creation and the improvement of personnel's quality,the standardization of the law enforcement of regulatory authorities and the combination of proper power delegation to lower levels and strict supervision),and balance the relationship between the govern-ment and the public in supervision to increase the public's awareness of responsibility.

Objective To explore the changes and the clinical signficance in serum myocardial zymogram of patients with intracerebral be hemorrhage(ICH).Methods To estimate the serum myocardial zymogram.Serum aspartate aminotrasferase(AST),lactate dehychogenase (LDH),creatine kinas (CK) in patients with ICH were measured in 3 days,then to make comparison with control group.Results The serum myocardial zymogram in ICH group were higher than that of control group(P <0.05).There were different changes in serum myocardial zymogram of various parts.The serum myocardial zymogram in group with temporal lobe damage was higher than that of group without temporal lobe damage (P < 0.05).The serum myocardial zymogram of group with colliculus brain damage was higher than that of group without colliculus brain damage(P <0.05) ,the serum myocardial zymogram of group with disorder of consciousness was higher than that of group wakefulness(P < 0.05).Conclusion There are significant changes in the serum myocardial zymogram of patients with ICH.The incidence of the serum myocardial zymogram in ICH was close]y correlated to the severity area and part of ICH,consciousness disorder.To estimate serum zymogram is helpful to judge patients' state and prognosis.

Animals ; Cell Culture Techniques ; methods ; Cells, Cultured ; Cryopreservation ; Male ; Mice ; Spermatogonia ; cytology ; Stem Cells ; cytology

Adult ; Case-Control Studies ; Glutathione Peroxidase ; blood ; Humans ; Middle Aged ; Occupational Exposure ; Oxidation-Reduction ; Silicosis ; blood ; Superoxide Dismutase ; blood

Objective To investigate the correlation between histone deacetylase 9 gene ( HDAC9 ) single nucleotide polymorphisms and ischemic stroke ( IS) subtypes. Methods A total of 202 patients with IS were enrolled prospectively. According to the Trial of Org 10172 in Acute Stroke Treatment ( TOAST) classification,the patients with IS were divided into large artery atherosclerotic stroke group (LAA,n=149) and the small-artery occlusive stroke group (SAO,n=53). A total of 201 age- and sex-matched healthy subjects over the same period were enrolled as the control group. Polymerase chain reaction-ligase detection reaction ( PCR-LDR ) was used to perform genotyping for HDAC9 gene rs11984041 and rs2107595 loci in all subjects. The correlation between genotype and IS was analyzed with multivariate logistic regression analysis. Results ( 1 ) In all the subjects detected, the genotype detected from rs11984041 loci was type CC,and 3 genotypes including CC,CT,and TT were detected from rs2107595 loci. (2) There were significant differences in dominance model (CT+TT,CC) genotypes and allele frequencies among the LAA, SAO, and control group dominance model ( CT +TT, CC ) and (χ2 =8. 635,P=0. 013, χ2 =10. 309,P=0. 006);and there were no significant differences in dominance model (CT+TT,CC) and allele frequencies among the 3 groups (after adjustment all P>0. 017). Compared with the control group,there were significant differences in the CC,CT,and TT genotypes and allele frequencies in the LAA group (χ2 =7. 446;P=0. 006). In the dominance models (CT+TT),there was significant difference in genotype frequencies between the LAA group ( 65. 1%,97/149 ) and the control group (52. 2%,105/201) (χ2 =5. 800;P=0. 016). (3) Multivariate logistic regression analysis showed that in addition to gender,hypertension,smoking,and high level of low-density lipoprotein,the dominance model CT+TT genotype was associated with the LAA type IS ( CT+TT genotype:OR,1. 909,95% CI 1. 055-3. 454,P =0. 033). Conclusion In addition to the risk factors for cerebrovascular disease such as gender,hypertension,smoking,and high level of low-density lipoprotein,HDAC9 gene polymorphisms may be associated with the LAA type IS. rs2107595 locus CT + TT genotype may be an independent risk factor for LAA type IS.

Objective To study the expressions of EGFR and VEGF in endometrium after danazol pretreatment and the pathological changes of endometrium. Methods A total of 60 patients with anovulartory functional bleeding were randomly divided into two groups: Danazol group and control group with 30 cases in each group. Danazol group were given transcervical resection of endometrium with danazol pretreatment, and control group without any pretreatment. The endometrium resected from uterus was sent for histological assessment, observation of the grandular quantity and stromal loose degree, and of the expressions of EGFR and VEGF in endometrium. Results The endometrium of patients who took Danazol were almost in proliferative phase(similar to early proliferative phase).The numbers of endometrial glands near the basal layer with Danazol pretreatment were lower than that in the control group; the stromal components (+～) were more compact than the contral group (～). The expression intensity and rates of EGFR and VEGF in glands were higher than those of stromal components. Danazol decreased the expression of EGFR and VEGF in endometrium compared to the control group. Conclusion Pretreatment with Danazol can suppress the prolifieration of endometrial cells, thin the endometrium,and disperse the glands, compact the stromal components, and it can also reduce the expressions of EGFR and VEGF in endometrial glands and stromal components compared with the control group.

Objective To observe the characterization of fat emboli in cardiac chamber in pig model and the patients undergoing total hip arthroplasty(THA) by transesophageal echocardiography(TEE). Methods Different dose of fatty liquid was injected slowly via the internal jugular vein. The changes of the image were observed by continuous TEE. The lethal dose of fat embolism was recorded. Twenty-two patients underwent TEE during THA. Gray scale and echo intensity of fat embolism in right atrium were studied quantitatively in varied periods of the operation. Results With the increase of fat liquid injected in pig model, the strong- echo particles in right atrium and ventricle became more and more, the imaging of the particles was from “moving star”, “shower-like” to “snow fluffy”, at last paradoxical fat embolism occurred when the dose of fat liquid was over 4 ml. The accumulated lethal dose of fat embolism was 15.8 ～ 27.8 ml.②Fat emboli appeared as strong- echo particles in right atrium were found in different period of THA. Average gray scale and echo intensity of emboli in right atrium were significantly higher in period B than in other periods during THA. Conclusions Fat emboli in cardiac chamber can be found sensitively by TEE. Intra-operative monitoring and quantitative analysis is helpful to identifying fat embolism syndrome.Paradoxical embolism is a reliable evidence of fat embolism syndrome.

OBJECTIVE To make clear the germicidal efficacy of a large-sized pressure-stream disinfector for(bedclothes) used in the hospital.METHODS The carrier-ration sterilization experiment and local disinfection(experiment) were used to test the germicidal efficacy of pressure-stream disinfector for microorganism being on the contaminated bedclothes.RESULTS Operating the disinfector at the 105℃ for 5 minutes,its killing rate of Staphylococcus aureus,Escherichia coli and Candida albicans on bedclothes was 100%,the natural killing rate of(surface) of bedclothes exceeded 99.28%.CONCLUSIONS The pressure-stream disinfection is an excellently(effective),economical and environment protective method,it deserves to be used widely.

Objective To observe the effect of Jisheng injection(JI)in preserving isolated heart of mice.Methods Langendorff' s isolated -perfused mouse heart mod el was established.The isolated hearts were preserved in modified Eu-ro -Collins solution(MECS)and MECS with JI added for 3h,7.5h and8.5h respectively.Cardiac functio n,coronary flow and myocardial water -volume (MWV)were observed after 3h ,7.5h and 8.5h of preservation,heart reactivatio n(HR)rate,coronary flow,MWV and time for HR were also observed.Results After 3h of preservation and 20min,30min or 40min of reperfusion,cardiac function and coronary flow in three M ECS +JI groups and especially in that of large dose were improved as compared with t hose in MECS group;MWV in large -dose and moderate -dose groups was obvi-ously lower than that in MECS group(P