Objective:To observe the effect of methylprednisolone (MP) combined with cyclophosphamide (CTX) on inflammation and immune cell activity in bleomycin (BLM)-induced pulmonary fibrosis rat model.Methods:Forty healthy 6 to 8-week-old SD rats were randomly divided into blank control, BLM model, BLM+MP, and BLM+MP+CTX groups, with 10 rats in each group. The rat model of pulmonary fibrosis was prepared by intratracheal infusion of BLM (5 mg/kg, only once). From the 7th day of modeling, MP (3 mg/kg) was injected in rats in the BLM+MP group and MP (3 mg/kg)+CTX (8 mg/kg) was injected via tail vein in rats in the BLM+MP+CTX group, once daily for 21 days. The degree of lung inflammation and fibrosis in rats was detected using HE and Masson staining methods. The numbers of granu-locytes and neutrophils in bronchoalveolar lavage fluid (BALF) and blood T cell subsets in rats were detected using flow cytometry.Results:On the 7th day of modeling, the external morphology, HE and Masson staining results of rat lung tissue showed that BLM-induced pulmonary fibrosis model was successfully prepared. On the 28th day of modeling, the lung tissue structure of the BLM group was disordered with obvious collagen deposition, the number of granulocytes and neutrophils in BALF increased significantly, the proportion of blood T cells, CD4 + T cells, and regulatory T cells (Tregs) decreased, the proportion of CD8 + T cells, and the CD4 +/CD8 + T cells ratio decreased significantly (all P<0.05). Compared with the BLM group, the degree of pulmonary fibrosis in the BLM+MP+CTX group was improved significantly, the number of granulocytes and neutrophils in BALF decreased significantly, the proportion of blood T cells, CD4 + T cells and Tregs cells increased significantly, the proportion of CD8 + T cells decreased, and the ratio of CD4 +/CD8 + T cells increased significantly (all P<0.05). The improvement effect in rats of BLM+MP+CTX group was better than that of BLM+MP group, and the difference was statistically significant ( P<0.05). Conclusion:MP combined with CTX can reduce the degree of inflammatory reaction in rats with pulmonary fibrosis and improve T cell immune activity.

Objective:To observe the effect of methylprednisolone (MP) combined with cyclophosphamide (CTX) on inflammation and immune cell activity in bleomycin (BLM)-induced pulmonary fibrosis rat model.Methods:Forty healthy 6 to 8-week-old SD rats were randomly divided into blank control, BLM model, BLM+MP, and BLM+MP+CTX groups, with 10 rats in each group. The rat model of pulmonary fibrosis was prepared by intratracheal infusion of BLM (5 mg/kg, only once). From the 7th day of modeling, MP (3 mg/kg) was injected in rats in the BLM+MP group and MP (3 mg/kg)+CTX (8 mg/kg) was injected via tail vein in rats in the BLM+MP+CTX group, once daily for 21 days. The degree of lung inflammation and fibrosis in rats was detected using HE and Masson staining methods. The numbers of granu-locytes and neutrophils in bronchoalveolar lavage fluid (BALF) and blood T cell subsets in rats were detected using flow cytometry.Results:On the 7th day of modeling, the external morphology, HE and Masson staining results of rat lung tissue showed that BLM-induced pulmonary fibrosis model was successfully prepared. On the 28th day of modeling, the lung tissue structure of the BLM group was disordered with obvious collagen deposition, the number of granulocytes and neutrophils in BALF increased significantly, the proportion of blood T cells, CD4 + T cells, and regulatory T cells (Tregs) decreased, the proportion of CD8 + T cells, and the CD4 +/CD8 + T cells ratio decreased significantly (all P<0.05). Compared with the BLM group, the degree of pulmonary fibrosis in the BLM+MP+CTX group was improved significantly, the number of granulocytes and neutrophils in BALF decreased significantly, the proportion of blood T cells, CD4 + T cells and Tregs cells increased significantly, the proportion of CD8 + T cells decreased, and the ratio of CD4 +/CD8 + T cells increased significantly (all P<0.05). The improvement effect in rats of BLM+MP+CTX group was better than that of BLM+MP group, and the difference was statistically significant ( P<0.05). Conclusion:MP combined with CTX can reduce the degree of inflammatory reaction in rats with pulmonary fibrosis and improve T cell immune activity.

Objective To explore the clinical characteristics of acute calculous cholecystitis in over 80 years old patients.Methods A retrospective study was made on the clinical data of 71 cases diagnosed as acute calculous cholecystitis and receiving surgical treatment from Sep 2006 to Sep 2016.Patients were divided into three groups:Early LC group (25 patients),PTGD group (29 patients),the staged LC group (17 patients) after PTGD.Results There was statistically significant difference in the gallbladder wall thickness,operation time and blood loss between the two LC groups.There was no statistically significant difference between the two LC groups in other baseline data and hospital stay,hospital cost,rate of postoperational complication,rate of conversion to open procedure between the two LC groups.There was statistically significant difference between the early LC group and PTGD group in the baseline data.Logistic regression analysis indicated that the TG13 grade was an important influence factor for treatment selection of PTGD (OR=3.957,P=0.015,95％CI:1.30-12.043).Conclusion Laparoscopic cholecystectomy was safe for good risk over 80 years old patients.For poor risk patients,PTGD is recommended before a LC attempt.

Dihydroartemisinin (DHA),the major active metabolite of artemisinin,participates in tumor progression through the following ways:forming free radicals to induce cancer cells death dependent on iron,inducing apoptosis,inhibiting angiogenesis,tumor cells invasion and metastasis,modulating muhidrug resistance,controlling intracellular Ca2+ concentration,regulating cell cycles,cell autophagy and the immune system and so on.Generally,it is considered to be a potential anti-tumor drug.

Muhidrug resistance (MDR) is one of the important reasons for the failure of clinical anticancer drugs,involving multiple mechanisms.Among them,the classical MDR mechanism mediated by P-glycoprotein (P-gp) is closely related to the formation of MDR,which can excrete intracellular chemotherapeutic drugs through the "drug pump" effect and significantly reduce the therapeutic effect.Curcumin is mainly extracted from the underground rhizome of Chinese medicine turmeric,with a wide range of pharmacological activity.Recent studies have found that curcumin also has a role in reversing the MDR of the tumor,by inhibiting both P-gp function and expression,and this process involves a variety of signal paths.

Ribosomal protein L23 is a new target for gene therapy of cancer.It participates in tumor progression by activating p53,inactivating murine double minute 2,regulating the carcinogenic activity of c-Myc,inducing the multi-drug resistance,and affecting the biologic behaviour of tumors.Generally,it′s con-sidered to be a potential prognostic factor in human cancers.

Ob jective To construct and screen out the RPL 23-siRNA interference fragments ,providing the basis for the following experiments about the correlation with RPL 23 and gastric cancer .Methods The RPL23-siRNA,synthesized chemically through lipofection ,were selected from three target sequences by RNA in-terference and detected by real -time PCR and Western blot .Results Compared with normal cell group and RPL23 control group ,the mRNA and protein expression of RPL 23 in the other 3 interference groups were signifi-cantly decreased(P<0.01).Multiple comparisons showed that the interference efficiency of RPL 23 -siRNA1 group was significantly higher than that of RPL 23-siRNA2 group and RPL23-siRNA3 group(P<0.01).Con-clusion The RPL23-siRNA interference fragment can be successfully constructed and screened out ,which pro-vides the basis for the following experiments .

BACKGROUND:The non-specific immune suppression method is generaly used for treatment of systemic lupus erythematosus, but poor prognosis, such as infection and high recurrence rate, exists.
OBJECTIVE:To evaluate the therapeutic effect of bone marrow mesenchymal stem cel transplantation on systemic lupus erythematosus in mice.
METHODS:Sixteen mice with systemic lupus erythematosus were equivalently randomized into control and experimental groups, or then subjected to passage 3 bone marrow mesenchymal stem cel transplantation or the equal volume of normal saline via the tail vein, respectively. Mouse urine samples were colected to detect urine protein levels by Bradford method. Blood samples from the tip of the mouse tail were extracted to detect serum anti-ds-DNS antibody concentration by radioimmunoassay. Mouse kidney tissues were taken and observed pathohistologicaly through hematoxylin-eosin staining and immunohistochemistry staining under microscope. Flow cytometry was used to detect the expression of CD4+CD25+T cels in the inner canthus blood, fresh spleen and thymus.
RESULTS AND CONCLUSION:Within 10 weeks after cel transplantation, the urine protein levels in the two groups were gradualy increased, and the rising velocity was higher in the control group than in the experimental group. From the 4th to 10th week, the urine protein levels in the experimental group were significantly lower than those in the control group (P < 0.05). In the control group, lymphocyte infiltration was visible in the kidney tissues with a few of plasmocytes, and pathological findings showed the mice presented with interstitial nephritis; in the experimental group, the mice had no pathological changes in the kidney. In the two groups, immune complexes were found in the mesangial area, which showed a patch-like distribution in the control group and a punctate distribution in the experimental group; the relative proportion of the occupied area in the experimental group was significantly lower than that in the control group. The expression level of CD4+CD25+T cels in the blood and thymus were significantly higher in the experimental group than the control group (P < 0.05), and the expression level of CD4+CD25+T cels in the spleen was slightly higher in the experimental group than the control group with no significant difference (P > 0.05). The serum anti-ds-DNA antibody concentration in the experimental group was significantly lower than that in the control group (P < 0.05). Taken together, bone marrow mesenchymal stem cel transplantation can improve the pathological damage in systemic lupus erythematosus mice, and has a certain therapeutic effect on systemic lupus erythematosus.

Objective To evaluate the effects of pregabalin combined with hydrochloric oxycodone on patients with ma-lignant neuropathic pain (MNP). Methods A total of 66 patients with MNP was divided into control group or treatment group randomly. The patients in control group received only hydrochloric oxycodone, and treatment group were treated with the combina-tion of pregabalin and hydrochloric oxycodone. Numeric rating scale (NRS) score was used to evaluate the analgesic effects. Med-ical outcomes study sleep scale (MOS-SS,Chinese version) was used to evaluate the improvement of sleep disorder. The changes of depression or anxiety were investigated by 17-item Hamilton Depression Rating Scale (HAMD-17) or Hamilton Anxiety Scale (HAMA), respectively. Side effects were accessed by Acute and Subacute Toxicity Grading Criteria of Anticancer Drugs (WHO). Results The pain control rate of treatment group was 87. 1% , which was superior to that of control group (58. 6% ) (P<0. 05). The improvement of sleep interference, and the quality and quantity of sleep in treatment group were also superior to that in control group (P<0. 05). After the treatment, depression and anxiety was attenuated in both groups, and the improvement degree in treatment group was higher than that in control group (P<0. 05). No obvious side effects were found in either groups. Conclusion The combination therapy of pregabalin and hydrochloric oxycodone is the better way to treat MNP.

Objective To investigate the efficacy and safety of compound kushen injection (CKI)in the treatment for patients with advanced liver cancers.Methods Relevantly randomized controlled trials from China National Knowledge Infrastructure (CNKI),Chinese Science and Technology Journal Database (VIP),Wanfang Data,and Pubmed were searched until November,2014.Randomized controlled trials (RCTs) of supportive care compared with combined therapy of CKI in the treatment for patients with advanced liver cancers were included.The methodological quality of RCTs was assessed independently with bias risk according to the Cochrane collaboration.All data were analyzed with the Review Manager 5.3.Results Eight RCTs involving 472 patients were included.The meta-analysis results suggested that the shortterm efficacy of the treatment group be higher (P =0.008) and that the pain relief be a significant benefit in the treatment group (P ＜0.01).Adverse reactions were not observed.Conclusions CKI is an effective and safe adjuvant drug for advanced liver cancers.