Objective The growth inhibitory effects of GlcNH_2?HCl,GlcNH_2 and NAG on human hepatoma SMMC-7721 cells in vitro was investigated.The antitumor activity of GlcNH_2?HCl against Sarcoma_(180) in KM mice was also investigated.Methods The cell viability in vitro was examined with MTT assay.DNA isolation and cell-cycle analyses were also performed.GlcNH_2?HCl was ig administered to Sarcoma_(180) KM mice.The inhibition rates,spleen and thymus index were calculated.Results GlcNH_2?HCl and GlcNH_2 resulted in a concentration-dependent reduction in hepatoma cell growth.The inhibition rates against SMMC-7721 cell of GlcNH_2?HCl and GlcNH_2 at concentration of 500?g?mL~(-1) were(50.24)% and 52.19%.As to the concentration of 1000?g?mL~(1), the rates were(82.21%) and 83.20%.This effect was accompanied by a marked increase in the proportion of S phase cells.Compared with the control,there was no significant difference among various concentrations of NAG,GlcNH_(2)?HCl exhibited inhibitiory effect against Sarcoma_(180) in mice at the dosage of 125～500 mg?kg~(-1),and the inhibition rate was about 27.84%～34.02%.The optimal inhibitory effect was 250 mg?kg~(-1).GlcNH_2?HCl could enhance the weights of thymus and spleen.In addition,it could promote lymphocyte transformation.Conclusion It is therefore postulated that the antitumor effect of GlcNH_2?HCl is probably host-mediated and cytocidal.

The Quality Standard of Multicomponent Dibiling, a nose drop for nasitis was studied.The presence of garlic, cassia and ephedra were demonstrated by TLC and the amouns of Allicin in the preparation was determined by HPLC. The method is simple, rapid and accurate.Average recoyery (n = 6 ) was 101.41 %and CV%was1 .76.

Objective To analyze MRI features of breast intraductal papilloma,to improve the acquaintance of this disease.Methods The preoperative MRI images (T2 WI-SPAIR,DWI,ADC,TIC and MIP)of eight patients with breast intraductal papilloma confirmed by surgery were reviewed retrospectively,which were compared with the postoperative pathology.The morphology,distribution, enhanced methods and signal characteristics of the lesion were summarized.Results Of 8 cases,the lession was dormant,and MRI revealed three patterns:the first type was occult papilloma,which presented distention of ducts and no solid nodule in 3 cases (37.5%);the second type showed tiny nodules in bar-like dilatation of ducts in 3 cases (37.5%);and the third type presented small round nodules scattering distribued in terminal ductules in 2 cases (25%).The maximum diameter of nodular lesions was 0.4-1.0 cm(average 0.7 cm).The lesions on T2 WI-SPAIR showed equal signal intensity or mixed signals with isointensity/hypointensity,and dilatation catheter.enhancement. The ADC and TIC value were various,therefore,diagnosis of the tumor should be combined with morphology and associated symptoms. Conclusion At early stage,the occult focus of breast intraductal papilloma can be sensitively detected and localized on MRI.It reveals that MRI has advantage in showing morphology of lesion and functional imaging,which is of important value in clinical diagnosis and early treatment.

Objective:To further study concentration-response relationship between daily mortality and particulate air pollution,to provide scientific basis for making policy.Methods:We applied spline model to daily time-series data for Taiyuan city,China from 2004-2005,using concentration of particulate matter less than 10 ?m in aerodynamic diameter(PM10)as the exposure measure,and controlling confounding factors,such as season,meteorological factors,day-of-the-week,other air pollutions,etc.Results:The spline model showed a non-linear relationship for the relative risks of death for all causes(total deaths)and for specific causes in relation to PM10 concentration,and obtained threshold levels.For total mortality,malignant tumor mortality and cardiovascular-cerebrovascular-respiratory mortality,the threshold levels were 85.00 ?g/m3,89.59 ?g/m3,122.54 ?g/m3,respectively,using the value of differential deduction.Conclusion:Our nonlinear models are appropriate for assessing the effect of particulate air pollution on daily mortality at current ambient levels in Taiyuan,China,in contrast to those of Europe and America.

Objective To explore the effect of problem-based learning method in traditional Chinese internal medicine teaching. Methods 58 students enrolled in the major of integrated traditional Chinese and western medicine in class C at the Beijing University of Chinese medicine were arranged to receive PBL(test group)or traditional teaching methods(control group)in 2 courses and complete 116 questionnaires. The teaching outcomes were evaluated by questionnaire and individual interviews. Results Compared with controls,students receiving PBL performed significantly better in terms of active classroom atmosphere, broadening their knowledge, and improving teamwork ability(χ2 were 7.16, 4.07, 4.09, P<0.05). Conclusion The PBL strategy has the advantage than the traditional teaching methods in traditional Chinese internal medicine teaching.

Objective To explore the impact of healthcare-associated septicemia (HAS)on hospitalization expense as well as length of hospital stay,so as to optimize the allocation of healthcare resources,and provide scientific basis for reducing the economic burden caused by septicemia.Methods Hospitalized patients with confirmed HAS in a tertiary first-class teaching hospital between June 1 ,2012 and May 31 ,2015 were investigated retrospectively,con-trol group was set up in a 1 :1 ratio,hospitalization expense and length of hospital stay between two groups were compared.Results A total of 285 cases and 285 controls were enrolled in the study,the median of hospitalization expense in case group was higher than control group (￥19 718.39 vs ￥9 289.04,P <0.05);the median of length of hospital stay in case group was longer than control group (14.89 days vs 9.22 days,P <0.05).The disease bur-den caused by septicemia in different age groups and departments were different.The improvement rate of case group was lower than control group (76.49% [218/285 ]vs 83.51 % [238/285 ],χ2 = 2.562,P = 0.009 ). Conclusion As the common blood stream infection in hospitalized patients,septicemia not only increased the ex-pense of diagnosis and treatment,but also affected turnover rate of hospital bed.Rapid and effective diagnosis and treatment is significant o prevent and control septicemia.

Objective To analyze the MRI features of Brucella spondylitis and spinal tuberculosis,to improve the ability of differential diagnosis. Methods MRI features of 22 cases with Brucella spondylitis and 26 cases with spinal tuberculosis confirmed by laboratory examination and operative pathology were analyzed retrospectively.Results Among 22 cases of Brucella spondylitis,1 7 cases occurred in the lumbar spine (1 3 cases in the lumbar 4 vertebrae),2 cases in the cervical spine,2 cases in the thoracic spine and 1 case in the sacral spine.1 9 cases had normal vertebral morphology,slight bone destruction and extensive edema,3 cases had severe vertebral wedge deformation, 16 cases had marginal bone hyperplasia.15 cases had slight changes in the intervertebral space,with narrow (or normal)or slight destruction of intervertebral disc,7 cases had severe narrowing or disappearance of intervertebral space and serious destruction of intervertebral disc. 13 cases had small paravertebral abscess,and 1 case had large paravertebral abscess.Among 26 cases of spinal tuberculosis,20 cases occurred in the lumbar spine (11 cases in the 4th and 5th vertebral bodies),5 cases occurred in the thoracic spine and 1 case occurred in the sacral spine,21 cases had severe vertebral wedge deformation due to bone destruction,9 cases had slight narrowing of intervertebral space, slight destruction of intervertebral discs,and 1 7 cases had obvious narrowing or narrowing of intervertebral space.7 cases had small paravertebral abscess and 1 6 cases had large paravertebral abscess with flowing phenomenon.Conclusion Vertebral morphology of Brucella spondylitis is basically normal,bone destruction is light and edema range is large,bone hyperplasia is common,slight narrowing (or normal)of intervertebral space occurs in intervertebral disc with less destruction,range of paravertebral abscess is limited.Bone destruction of spinal tuberculosis is heavy and edema range is small,vertebral body is easy to deform with no osteoporosis,significant stenosis (or disappearance)and severe disruption occur in intervertebral disc,paravertebral abscess is large often with flowing phenomenon.

Objective:To explore the expression of Bcl related anti-apoptotic protein 3 (BAG3 protein)in colon cancer and its clinical significance,and to clarify the relationship between its expression and the occurrence and development of colon cancer.Methods:A total of 90 cases of colon cancer tissue and paracancerous tissue were selected, the expressions of BAG3 protein in different tissues were detected by tissue microarray and immunohistochemical SP method;Kaplan-Meier method,univariate analysis and multivariate analysis were used to investigate the relationship between the clinicopathological parameters and the prognosis of the patients with colon cancer.Results:The expression of BAG3 protein in the colon cancer tissue was high,and the positive expression rates of BAG3 protein in the colon cancer tissue and paracancerous tissue were 37.8% and 0.01%,respectively, and the difference was significant (P < 0.05).The expression of BAG3 protein was associated with gender and tumor size (P <0.05),but there was no correlation between the expression of BAG3 protein in the colon cancer tissue and age,pathologic grade,TNM stage,and lymph node metastasis (P >0.05).The Kaplan-Meier results showed that the expression of BAG3 protein in the colon cancer tissue was not related with the prognosis of the patients and the survival rates of the younger patients and the higher TNM staging patients were high. Conclusion:The expression of BAG3 protein in the colon cancer tissue is high,and its expression is associated with the tumor size;BAG3 protein may act as a tumor marker and therapeutic target for colon cancer.

Objective To investigate the MRI features of solitary fibrous tumors(SFT)in the spinal canal.Methods MRI images of 5 cases with pathologically proved STF in the spinal canal were analyzed retrospectively.Results Of 5 lesions,there were 2 in the cervical spine,3 in the thoracic spine;1 in the epidural space and 4 in the subdural extramedullary space.On MRI plain scan,3 lesions showed homogeneous iso-intense signal on T1WI and hypo-intense signal on T2WI,2 lesions showed heterogeneous signal,1 showed patchy hypo-intense signal on T1WI and T2WI at the upper edge of lesion,which had been confirmed as hemorrhage and the other lesion showed internal cystic variation.All of the 5 lesions enhanced on enhancement scan,with moderate enhancement in 2 lesions and significant enhancement in 3 lesions.Cystic and hemorrhagic area were not enhanced.The"dural tail sign"was showed in 3 cases.Conclusion The diagnosis of SFT should be considered when a lesion shows a localized solitary mass in the spinal canal with hypo-intense on T2WI and moderate to significant enhancement.

Objective To investigate whether the effects of rapamycin on promoting oral squamous cancer cell apoptosis is related with inhibiting TLR4 expression and inflammatory factor IL-6 and PGE2 expression.Methods Human oral squamous carcinoma SCC-15 cell line was cultured and interfered by rapamycin.Then the activity of SCC-15 cells was detected by CCK 8,the SCC-15 cells apoptosis was detected by the Hochest33342/PI double staining,the invasion ability was determined by the transwell method.The TLR4 protein expression level was detected by Western blot and IL-6 and PGE2 expressions were detected by ELISA.Results Rapamycin could promote cell apoptosis,the invasion ability of SCC-15 cells was significantly decreased.After rapamycin intervention,the TLR4 protein expression was decreased and expression levels of IL-6 and PGE2 were reduced,showing statistical difference as compared with the negative group (P＜0.05).Conclusion Rapamycin promotes oral squamous cancer SCC-15 cell apoptosis,which may be related with inhibiting TLR4,IL-6 and PGE2 expression.