Objective This paper aims to assess the clinical efficacy of pemetrexed maintenance therapy in patients with advanced non-small cell lung cancer( NSCLC) through Meta analysis.Me thods Systematic lit-erature searches were performed in Cochrane、Pubmed,Web of science, Embase and ClinicalTrials databases.The related references had been traced.We made quality assessment of qualified randomized controlled trials( RCTs) of pemetrexed maintenance therapy compared with best supportive care( BSC) in advanced NSCLC.Besides,we u-tilized stata 12.0,Revman 5.3 and GRADEpro software to evaluate the overall quality of the evidence,according to the Cochrane collaboration to perform Meta-analysis.Resutl s Three RCTs were eligible and included 1257 patients.Meta-analysis results suggested that:compared to BSC,pemetrexed maintenance therapy had a statisti-cally significant benefit in improving progression-free survival(PFS)(HR =0.55,95% CI:0.48~0.64)and overall survival(HR=0.76,95%CI:0.65~0.88).The objective response(ORR)did not reach statistical signif-icance(RR=0.97,95%CI:0.86~1.10).Conclusion Compared with BSC,pemetrexed maintenance therapy statistically significantly improve PFS and OS,but has no demonstrable impact on ORR in patients with advanced NSCLC.

Objective To investigate the imaging features of sarcomatoid carcinoma(SC)of lung on chest radiography and CT and to improve knowledge of SC.Methods The chest plain films,CT images and clinical data of all 7 cases of pathologically proved lung SC were retrospectively analyzed.Results All cases presented with a spheroid solid lung mass ranged from 3 to 11 cm in diameter(average 7 cm).All the lesions were located in middle and lower fields of the lung:3 lesions in right lower lobe,2 in right middle lobe,and the other 2 in left lower lobe.Among the 7 cases:6 cases were of peripheral type and 1 case was of central type.The peripheral-typed lesions of 5 cases had clear margin and 3 of them were lobulated.Three massess were homogenous in density,and the other 4 were inhomogeneous in density with formation of central cavity or calcification.After intravenous contrast administration.Three lesions showed homogeneous enhancement,and the other 4 lesions had inhomogeneous enhancement.The lesions with diameter larger than 6 cm showed marginal or patch-like enhancement.Five cases had pleural or chest walls invasion.Two cases had mediastinal lymph nodes metastases.One case had multiple remote metastasis.Conclusion There are some relatively specific features of lung SC on chest radiography and CT,which may be helpful for diagnosis.

Silk fibroin is a natural polymer with certain water solubility, structural modification, good biocompatibility and biodegradability, which can be used as a drug delivery carrier material. As a promising drug delivery system, drug-loaded silk fibroin nanoparticles can control drug release, reduce toxicity and improve therapeutic effects. In this paper, the basic characteristics of silk fibroin, the preparation methods of drug-loaded silk fibroin nanoparticles and the application of silk fibroin in nanoparticulate drug delivery systems are reviewed, and on this basis, the further development of drug-loaded silk fibroin nanoparticles is prospected.

OBJECTIVETo explore the Mechanism of nonablative skin rejuvenation.

METHODThe Kunming mice be used as subjects and divided into three groups (A, B, C). A, B, C groups were irradiated with 1 320 nm cooltouch laser (20 J/cm2) in the skin of left back; B and C groups were irradiated two and three times respectively; the skin of right back of A, B, C groups was adopted as control. The expression of bFGF and TGF-beta1 in the mouse skin was examined by the immunohistochemistry . The fibroblasts were isolated from the foreskin and cultured. One group is a control and other three ones are low, intermediate and high energetic groups respectively. The fibroblasts were irradiated by laser with 15 J/cm2 ,20 J/cm2 and 24 J/cm2 energy for three times. We examined the levels of bFGF and TGF-beta1 by ELISA in 0, 24, 48 and 72 hours.

RESULTSAccording to this research on immunohistochemistry result, there are significant differences in the expression of bFGF and TGF-beta1 between the group irradiated by three times and others (P < 0.01). The number of fibroblasts get increased after being irradiated by laser. The ELISA result indicates that the secretion of bFGF increased in the group of intermediate and high energetic level after laser irradiating and may reach the peak at 24 hours (P < 0.01). The amount of TGF-beta1 secretion, however, seems to get decreased in each group at all energetic levels, and at 24 hours it can reach the top level as well.

CONCLUSIONThe direct influence of laser on the fibroblasts is to promote secretion of bFGF and to inhibit secretion of TGF-beta1, while its influence on the tissue is to promote the secretions of the both. Nonablative skin rejuvenation not only can induce fibroblasts to secrete more bFGF but also induce the blood vessels to release cytokines which stimulate endothelial cell to express more of bFGF and TGF-beta1. Furthermore, fibroblastic proliferation can accelerate by laser's irradiating.

Animals ; Cells, Cultured ; Cosmetic Techniques ; Female ; Fibroblast Growth Factor 2 ; metabolism ; Fibroblasts ; cytology ; radiation effects ; secretion ; Laser Therapy ; Mice ; Mice, Inbred Strains ; Rejuvenation ; Skin ; cytology ; radiation effects ; Transforming Growth Factor beta1 ; metabolism

Objective To recognize the CT manifestations of benign metastasizing leiomyoma (BML).Methods Four cases of BML proved by pathology were retrospectively analysed.Among these, 2 cases were pulmonary BML,1 ease was leiomyomatosis peritonealis diseminata(LPD),and 1 case was combined with pulmonary BML and LPD.All of them were female,and had a history of hysterectomy,the average age were 45.The CT findings of them were analyzed.Results The CT of pulmonary BML in three cases showed multiple rounded,well-defined discrete nodules,0.2—2.0cm in diameter,random distribution,and no calcification in the nodules.No hilum or mediastinum lymphadenopathy,and no pleural effusion.There were no enhancement after intravenous contrast examination.The CT findings of LPD in two cases were many masses around the vena cava,abdominal aorta and/or iliac artery.The masses were 4— 5cm in diameter with smooth margin and homogeneous density.No lymph node or ascites were found.One case who got intravenous contrast enhanced CT scan showed significant enhancement of the lesions;another case who got PET CT study showed no significant tracer concentration.Conclusion When multiple metastasizing nodular lesions with sharp margin and homogeneous density were found in the lungs or abdomen,they should be considered the possibility of BML in women with hysterectomy history.

Objective To translate and revise the form of rheumatoid arthritis (RA) self-efficacy scale (RASE),and evaluate the revised scale.Methods Totally 101 patients with RA in one hospital were selected for investigation.Through the translation-back to the source scale and the cultural adjustment,the Chinese version of RASE (C-RASE) was formed.Exploratory factor analysis was conducted to acquire the construct validity while the Pearson correlation analysis was used to obtain the test-retest reliability.Results Factor analysis was carried out on 28 items,and the loading was 0.496,0.490,0.482 and 0.493 of item 5,and item 15 on two factors respectively.Exploratory factor analysis was conducted secondarily after deleting items of 5,15,and 17,considering the item contents,and 9 factors were extracted,respectively named for exercise,comprehensive treatment,relaxation,activity,sleep,social relationship,fatigue,cognition and active planning,which could explain 68.36％ of total variation;aud the correlation coefficient between each dimension and total table ranged 0.344 to 0.679 (P＜0.01);The Cronbach's alpha coefficient of the C-RASE was 0.751,and the retest reliability was 0.731.After deleting their own items,the Cronbach's alpha value range was 0.730 to 0.756.Conclusion C-RASE has sound reliability and validity and could provides a measurement of the self-efficacy among rheumatoid arthritis patients.

Orthotopic liver transplantation has proven to be effective in the treatment of a variety of life-threatening liver diseases, however, the limitations of donated organs available and long-term immunosuppression provided an impetus for developing alternative therapies. Cell replacement strategies have been one major effective approach for overcoming the obstacles of organ transplantation in recent years. The exogenous cells should be able to proliferate and differentiate into mature hepatic cells after grafting. Use of mature hepatocytes is also hampered by limited tissue source and inability to proliferate and maintain the function for a long term in vitro. Embryonic stem cells are immortal and pluripotent and may provide a novel cell source for potential cell therapy. This review summarizes the mechanisms of controlling early liver development and hepatic differentiation of visceral endoderm in embryoid bodies, and provides an overview of diverse differentiation systems in vitro and in vivo that were applied to hepatic research in recent years. Several studies have demonstrated that ES cell-derived hepatocytes can incorporate into liver tissue and function in vivo , but a few of them have shown complete restoration of liver function after transplantation into mice with liver diseases. Further studies should be made to exploit efficient methods and clinical applications of hepatocytes derived from ES cells in the future. In addition to clinical transplantation for treatment of liver diseases, ES cells can provide a valuable tool for drug discovery applications and study on of molecular basis of hepatic differentiation.
Animals ; Cell Differentiation ; physiology ; Cells, Cultured ; Embryonic Stem Cells ; cytology ; transplantation ; Hepatocytes ; cytology ; Humans ; Liver Diseases ; therapy

OBJECTIVETo explore the active ingredients in the Chinese yellow wine could inhibit the proliferation and migration of rat vascular smooth muscle cells induced by homocysteine (Hcy).

METHODSThe primary culture and identification of rat vascular smooth muscle cells (VSMCs) was conducted, and the VSMCs in passage 4-7 were used in the following experiments. The VSMCs were divided into 7 groups: control, Hcy (1 mmol/L), Hcy + oligosaccharide, Hcy + polypeptides, Hcy + polyphenols, Hcy + alcohol, Hcy + Chinese yellow wine and were given the corresponding treatment. The proliferation of VSMCs was determined by MTT. Transwell chambers and would healing were employed to test the migratory ability of VSMCs. Wester blot and gelatin zymography were used to investigate the expressions and activities of metal matrix proteinase 2/9 (MMP-2/9) and tissue inhibitor of metalloproteinase 2 (TIMP-2) in VSMCs of each group.

RESULTSCompared with control group, the proliferation, migration and the expression and activity of MMP-2/9 of VSMCs were significantly increased in the VSMCs of Hcy group (P < 0.01). Compared with Hcy group, the proliferation, migration and the expression and activity of MMP-2/9 of VSMCs were significantly decreases in the VSMCs of polypeptides group, polyphenols group and Chinese yellow wine group. However, the expression of TIMP-2 among each group had no significant difference.

CONCLUSIONPolypeptides and polyphenols in the Chinese yellow wine could inhibit the proliferation and migration of VSMCs induced by Hcy.

Animals ; Cell Movement ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Homocysteine ; Matrix Metalloproteinase 2 ; metabolism ; Matrix Metalloproteinase 9 ; metabolism ; Muscle, Smooth, Vascular ; cytology ; Myocytes, Smooth Muscle ; cytology ; drug effects ; Peptides ; chemistry ; Polyphenols ; chemistry ; Rats ; Tissue Inhibitor of Metalloproteinase-2 ; metabolism ; Wine

China ; Congresses as Topic ; Humans ; Otolaryngology

Described in the paper is the practice of Chengdu in its pilot of medical alliances in 2015 ,which effectively elevated the medical capacity and quality of care of medical institutions within Pujiang county. Such measures as enhanced management and mechanism ,clarified government responsibility ,standardized medical service quality ,and enhanced coordination within the healthcare system are proposed to enhance the medical alliances and the hierarchical medical system .