Objective To explore the effects of fibroblast transdifferentiation for myofibroblast (MFB) in the pathogenesis of systemic sclerosis (SSc) and to explore the antifibrotic mechanism of interferon γ (IFN-γ) in SSc.Methods The fibroblasts derived from the skin lesions of SSc patients and healthy adult controls were cultured in vitro and the MFB proportion in fibroblasts was examined by qualitative and quantitative α-smooth muscle actin (α-SMA) detection.By adding IFN-γ to the culture system with several doses,the influence on fibroblast proliferation and transdifferentiation for MFB in SSc was observed with MTT and enzyme linked immunosorbent assay (ELISA) respectively.Differences in the means of two independent samples were tested by Student' t-test.The means among multiple independent samples were com-pared by ANOVA.Results The means of positive α-SMA in SSc fibroblasts were higher than those in the controls (P＜0.01).With extended culture time,α-SMA levels of the two groups all increased gradually (P＜ 0.01 all),but there were higher α-SMA levels in SSc fibroblasts (24 h:130±19,48 h:183±21,72 h:249± 22) than those in controls (24 h:98±21,48 h:143±16,72 h:174±19) (P＜0.05 all).Although fibroblast proliferation and α-SMA levels were not influenced after adding of IFN-γ 10 U/ml (P＞0.05 all),but IFN-γ at concentration of 100 U/ml and 1000 U/ml could obviously repress fibroblast proliferation and α-SMA levels (P＜0.05 all),and 1000 U/ml had the strongest inhibiting effect at 24,48,72 h.Conclusion The fibroblasts in the skin of SSc patients have a strong potency to transdifferentiate to MFB.Early appropviate dose of IFN-γ could repress fibroblast proliferation and transdifferentiation in SSc.

0.05). Conclusions In han-nationality people in Northern China, DRB1*04 is positively associated with Eales′ disease, suggesting that DRB1*04 may confer a major influence on Eales′ disease. Turbulence of immune function begotten by infect-agents attack may occur in the individuals with Eales′ disease due to the specific hereditary diathesis of HLA, which may cause the occurrence and development of Eales disease.

Objective:To study the medicine storage management mode in our hospital. Methods: The medicine sales and inventory data were obtained from 2010 to 2013 by the HIS of our hospital. Medicine storage turnover ratio was calculated by using Microsoft Excel. The efficiency in the inventory management was evaluated by medicine storage turnover ratio. The storage control in our hospital was analyzed by the relevant references. Results: The medicine storage turnover ratio from 2010 to 2013 in our hospital was improved to 20. 06 times, the turnover days was reduced to 18 days which met the criteria for the review of the grade A class 3 hospital. Conclusion: The medicine storage management should be scientifically adjusted on the basis of the clinical characteristics and the use of medicines in the hospital. In this way, the improvement of medicine storage turnover ratio, the optimized control of the medicine stocks and the improvement of the social and economic benefit of the hospital will be realized.

Objective To comparative analysis the effect of radiotherapy,thermoradiotherapy and chemora-diotherapy on esophageal cancer.Methods 120 patients with esophageal carcinoma were selected and randomly divided into the radiotherapy group,thermoradiotherapy groupand chemoradiotherapy group by digital table method, with 40 cases in each group,which were treated with radiotherapy alone,thermoradiotherapy alone and radiotherapy combine with chemotherapy respectively.The effects of treatment of the three groups were compared.Results The main toxic reaction in the three groups during the treatment for adverse reaction were digestive system reaction,hema-tologic toxicities and radioactive esophagitis.The incidence of toxic reaction of the three groups were not statistically significant(P >0.05).Total response rate of simple radiotherapy group,the thermal radiation group,chemoradiothera-py group were 52.5%,75.0% and 85.0%.,The total remission rate of chemotherapy group was higher than those of the radiotherapy group and the thermal radiation group(χ2 =5.218,3.857,all P <0.05).Conclusion The different treatment methods of esophageal cancer can obtain certain curative effect,but there are some adverse reactions.Among different treatment methods,radiotherapy and chemotherapy in the treatment of esophageal carcinoma can get better effect than the radiotherapy and chemoradiotherapy.

Objective To observe the treatment effect of Shah Mette Lo/fluticasone inhalation(Seretide)for stable stage of chronic obstructive pulmonary disease (COPD).Methods 50 patients with COPD were randomly divided into treatment group and control group.The treatment group was given Seretide (specifications of 250μg)1 -2 ceiling/time,2 times/day,after 24 weeks of treatment,the control group was given 2mg of regular salbutamol com-bined with budesonide 1mg atomization inhalation,2 times daily.The clinical symptoms were compared before and aftertreatment.Results In the treatment group,acute seizure frequency was significantly reduced,cough,wheezing singing decreased or disappeared,self -care ability improved,the control group had no obvious change.The control group:before treatment FEV1 (1.1 ±0.4)L;FEV1 % predicted value(22.5 ±5.1 )%;FEV1 /FVC%:(25.3 ±5.8)%;after treatment FEV1 (1.5 ±0.7)L;FEV1 % predicted value(29.4 ±6.2)%;FEV1 /FVC%:(32.8 ±6.6)%.The treatment group:before treatment FEV1 (1.1 ±0.6)L;FEV1 % predicted value (24.5 ±5.6)%;FEV1 /FVC%:(26.7 ±6.6)%;after treatment FEV1 (1.7 ±0.6)L;FEV1 % predicted value(33.4 ±7.8)%;FEV1 /FVC%:(37.8 ± 8.6)%.Conclusion In patients with stable COPD inhaled Seretide treatment can significantly improve lung func-tion,and it is better than sardine an alcohol combined with budesonide inhalation therapy.

Objective To evaluate the role of sonic hedgehog (SHH) signaling pathway in spinal neurons in morphine tolerance (MT) in mice.Methods Pathogen-free healthy female Kunming mice,weighing 20-25 g,aged 8-10 weeks,were used in the study.MT was induced with morphine 10 mg/kg injected subcutaneously twice a day for 7 consecutive days.The experiment was performed in two parts.Experiment Ⅰ Forty-eight mice were randomly assigned into 2 groups:control group (group C,n =8) and MT group (group M,n=40).The thermal pain threshold (TPT) was measured at 1 day before morphine injection and 1,3,5,7 and 14 days after the end of injection.Eight mice in each group were sacrificed at 2 h after measurement of TPT at each time point after the end of injection in group M or at 2 h after the last measurement of TPT in group C,and the lumbar segment (L4-6) of the spinal cord was removed.Experiment Ⅱ Forty-eight mice were randomly assigned into 6 groups (n=8 each):SHH inhibitor cyclopamine plus MT group (group CP+M),cyclopamine solvent plus MT group (group D1 +M),SHH agonist SAG plus MT group (group SAG+M),SAG solvent plus MT group (group D2+M),MT plus cyclopamine group (group M+CP) and morphine plus cyelopamine solvent group (group M+D1).At 15 min before morphine injection,cyclopamine 10 mg/kg was injected subcutaneously in group CP+M,and SAG 5 mg/kg was injected subcutaneously in group SAG+M.Cyclopamine 10 mg/kg was injected subcutaneously once a day during the 1-3 days after the end of morphine injection in group M+CP.The TPT was measured before injection of morphine,at 30 min after the first injection of morphine every day and at 1-3 days after the end of morphine injection.The animals were sacrificed at 2 h after the last measurement of TPT,and the lumbar segment (L4-6) of the spinal cord was removed for determination of the expression of SHH signaling pathway-related proteins SHH,ptch1,smo,gli1 and gli3 using Western blot.Results Experiment Ⅰ Compared with group C,the TPT was significantly decreased at 1 and 3 days after the end of morphine injection (P＜0.05),no significant change was found in TPT at 5-14 days after the end of morphine injection (P＞0.05),and the expression of SHH,smo and glil at 1-5 days after the end of morphine injection,of ptchl at 1 and 3 days after the end of morphine injection and of gli3 at 7 days after the end of morphine injection was up-regulated in group M (P＜0.05).Experiment Ⅱ Compared with group D1+M,the TPT was significantly increased,the expression of SHH,ptchl,smo and glil was down-regulated,and gli3 expression was up-regulated in group C P+M (P＜0.05).Compared with group D2+M,the TPT was significantly decreased,the expression of SHH,ptch1,smo and glil was up-regulated,and gli3 expression was down-regulated in group SAG+M (P＜0.05).There was no significant difference in the parameters mentioned above between group M+CP and group M+D1 (P＞0.05).The TPT was significantly lower on 3rd-7th days after beginning of morphine injection and 1-3 days after the end of morphine injection than at 30 min after the first injection of morphine in group CP+M (P＜0.05).Conclusion The mechanism underlying the development of MT is partially related to activation of SHH signaling pathway in spinal neurons of mice,however,the maintenance mechanism has no marked relationship with it.

Adolescent ; Adult ; Case-Control Studies ; Female ; Hepatitis B, Chronic ; blood ; Humans ; Male ; Middle Aged ; Norepinephrine ; blood ; Young Adult

ObjectiveTo assess the differential diagnostic value of serum intestinal fatty acid binding protein (I-FABP)in distinguishing intestinal ischemia patients from acute abdomen patients.MethodsA total of 151 patients with acute abdomen and 17 healthy controls from the PLA General Hospital were enrolled from November,2009 to August,2011. Serum I-FABP levels were measured by ELISA.According to the ROC curve,the cut-off value,sensitivity,specificity,positive likelihood ratio (PLR),negative likelihood ratio ( NLR),positive predietive value (PPV) and negative predictive value (NPV) were calculated. ResultsOf the 151 acute abdomen patients,there were 24 intestinal ischemia patients and 127 without intestinal ischemia.Serum I-FABP level in intestinal ischemia group [( 109.67 ±48.82) μg/L]was significantly higher than those in patients without intestinal ischemia [(36.78 ± 11.25) μg/L]and healthy controls[(8.33 ±6.25) μg/L]( all P values ＜0.01 ).The serum I-FABP cut-off value for the diagnosis of intestinal ischemia was 87.52 μg/L.Serum I-FABP was efficient in terms of sensitivity (0.762),NPV(0.963),PLR(3.05) and NLR (0.24) in the diagnosis of intestinal ischemia.ConclusionI-FABP is potentially useful for discriminating intestinal ischemia from acute abdomen.

Aim To investigate the effects of Aplysin on the inhibition of gastric cancer cell in vitro .Methods MTT assay was used to examine the inhibition of gastric cancer cell 1ine SGC-7901 by Aplysin in different concentrations and at different times.The morphologic changes and the apoptosis of SGC-7901 was observed by inverted microscope and Hematoxylin-Eosin(HE)staining.Reverse transcriptase polymerase chain reaction(RT-PCR)assay was used to detect the changes of COX-2 mRNA expressions.Results Aplysin could decrease the proliferation significantly in a dose-dependent manner in SGC-7901 cells.When treating SGC-7901 with Aplysin in concentration of 120, 240 mg·L~(-1) for 24 h, the growth of the cell was obviously inhibited observing by inverted microscope.Aiso, when treating with the same concentration for 18 h, its chromatin became crimpled and breakdown, as well as cell shrinkage and apoptotic bodies formation when using HE staining.The apoptotic rates(%)of SGC-7901 was(15.0±2.12)%, (18.4±2.3)%, respectively, which was significantly higher than(1.4±0.55)% that in control group(P <0.01).60、120、240 mg·L~(-1) Aplysin could not effectively inhibited the mRNA expressions of COX-2(P ＞0.05).Conclusions Aplysin can inhibit the proliferation and induces apoptosis of SGC-7901 cells.

OBJECTIVE:To investigate the role of interferon to increase the sensibilization of MGMT positive glioma stem cel s to temozolomide in vitro. METHODS:Glioma cel lines, U251 and SKMG-4, were induced by suspended cloning bal formation method to harvest MGMT positive glioma stem cel s, U251G and SKMG-4G. Cel counting kit-8 assay was used to detect the kil ing effect of interferonα/βcombined with temozolomide on MGMT positive glioma stem cel s. RT-PCR and western blot assay were employed to determine the expression of MGMT and nuclear factorκB in MGMT positive glioma stem cel s. RESULTS AND CONCLUSION:Western blot results showed positive expression of MGMT in U251G and SKMG-4G cel s at protein levels. After intervention with interferonα/β, the mRNA expression of MGMT and nuclear factorκB in SKMG-4G and U251G cel s was reduced significantly, and then further decreased after temozolomide treatment. These findings indicate that interferonα/βcan remarkably strengthen the kil ing effect of temozolomide on MGMT positive glioma stem cel s.