OBJECTIVE:To work out the quality control standard of Penqiangyan tablets.METHODS:The major herbs in the preparation were identified by TLC.The contents of total ferulic acid in Radix Angelia Sinensis and Rhizoma Chuanxiong were determined by HPLC.RESULTS:Ferulic acid had a good linearity in the range of1.244～124.4?g/ml(r=0.9984).The recovery and RSD were97.06%and1.44%(n=6)respectively.CONCLUSION:The method is simple and feasible and had a good repeatability.It can be used for the quality control of Penqiangyan tablets.

Objective To screen the human proteins interacting with human cytomegalovirus（HCMV）UL130 from human fetus brain cDNA library by GAL4 two-hybrid system 3 technique and analyze the corresponding coding sequences.Methods The ＂bait plasmid＂（named as pGBKT7-UL130）was constructed.By using HCMV UL130 as the bait,a human fetus brain cDNA library was screened and the proteins interacting with UL130 protein were searched.The positive clones were sequenced and analyzed by bioinformatic methods.Results Nine clones interacting with HCMV UL130 were identified,two of them were synaptosome-associated protein（SNAP）.Conclusion Some proteins interacting with HCMV UL130 in human fetus brain cDNA library were successfully screened.SNAP might play an important role in HCMV infection pathogenesis.

Objective To provide an experimental basis for long-term in vitro proliferation,tissue construction and function maintaining of human primary hepatocytes by preparing three-dimensional (3D) porous specific extracellular matrix (ECM) derived from porcine liver with different decellularizing methods.Methods The porcine liver tissue slices were treated using six different decellularization/oxidation ways,and the decellularization extent and ECM structure were evaluated through qualitative and quantitative analysis.Results The decellularized liver-ECM could maintain the original shape during the whole process of the decellularization.HE staining showed that the cellular components and nucleus disappeared in the decellularized ECM,indicating that all of these six decellularization methods can completely decellularize the porcine liver tissue slices.Determination of DNA content showed that 91％ ～ 97％ of cell components have been removed.Electron microscopy scanning observed that the pore sizes and ultrastructures of the liver ECMs under six decellularization treatments were significantly different.Conclsion The six decellularization/oxidation methods evaluated in this study could successfully create a 3D specific decellularized liver ECM with porous ultrastructure,which further lays basis for the development of a novel in vitro 3D culture model for human hepatocytes.

Objective Using yeast two-hybrid system to screen the proteins which can interact with the human cytomegalovirus (HCMV) UL128 which have two difference transcription structure from human fetus brain cDNA library, and compare the difference with structure and function of interacting proteins. Methods Two fragments of UL128 were amplified by 3'RACE and 5'RACE technology, the length are 519 bp and 642 bp, respectively. The "bait plasmid" (named as pGBKT7-UL128-519 bp and pGBKT7-UL128-642 bp) was constructed successfully. Using pGBKT7-UL128-519 bp and pGBKT7-UL128-642 bp as a bait, a human fetus brain cDNA was screened and the proteins interacting with UL128-519 bp and UL128-642 bp encoded protein were searched, and the positive clones were sequenced and analyzed by bioinformatic methods. Results EFEMP2 interacting with HCMV UL128-519 bp were identified, THY-1 interacting with HCMV UL128-642 bp were identified. Conclusion EFEMP2 and THY-1 proteins interacting with HCMV UL128-519 bp and UL128-642 bp in human fetus brain cDNA library were successfully screened, but same proteins weren't found from the proteins interacting with UL128-519 bp and UL128-642 bp protein, UL128-519 bp and UL128-642 bp protein may be play an different effect in the process of infect by HCMV.

Background and purpose: Malignant tumors often relapsed or metastasized after first-line chemotherapy and needed second-line or above treatment. We conducted this study to deifne the maximum-tolerated dose (MTD) of lobaplatin with ifxed docetaxel for Chinese patients in previously treated solid tumors. Methods:Escalating doses of lobaplatin with fixed docetaxel were administered in a modified Fibonacci sequence. The initial doses were lobapla-tin 30 mg/m2 and docetaxel 60 mg/m2, respectively. Escalating doses was 5 mg/m2. The regimen was repeated every 21 days. If no dose-limiting toxicity (DLT) was observed, the next dose level was applied. The procedures were repeated until DLT appeared. The MTD was declared to be one dose level below the level at which DLT appeared. Results:Seventeen patients received fifty-eight cycles chemotherapy at lobaplatin of levelⅠ(30mg/m2), levelⅡ(35 mg/m2)and levelⅢ(40 mg/m2). Cases of complete response (CR), partial response (PR), stable disease (SD) and progression disease (PD) for the whole group were 0, 1, 10 and 3, respectively. Response rate (RR, CR+PR) and disease control rate (DCR, CR+PR+SD) were 7.1%(1/14) and 78.6%(11/14), respectively. The most common toxicity was leukopenia. Three DLTs occurred in 3 patients in the whole group, including 2 DLTs in dose levelⅢ. We declared thus levelⅡwas MTD. Conclusion:MTD of lobaplatin in our re-search was 35 mg/m2 combined with fixed dose of docetaxel. This combination regimen was well tolerated.

Objective To explore the clinical value of endoscopic ultrasonography (EUS) examination before esophageal achalasia (EA) patients treated by peroral endoscopic myotomy (POEM).Methods From August 2011 to November 2011,esophageal EUS examination was conducted in 34 EA patients scheduled for POEM treatment (EA group) and 30 cases accepted gastric EUS examination (control group) at endoscopic center,Zhongshan Hospital,Fudan University.The thickness of muscularis propria layer and the circular muscle layer was measured at cardia,5 cm,10 cm and 15 cm above cardia,and the proportion of circular muscle layer was calculated.The differences in groups and between groups were compared.The correlation between muscle thickness and complication after POEM treatment was analyzed.The data were analyzed by t test.Results There was no difference between EA group and control group in the thickness of the muscularis propria layer at same part (at cardia,5 cm,10 cm and 15 cm above cardia,t=1.210,1.116,0 and 0.292respectively; all P＞0.05 respectively).The thickness of the circular muscle layer of EA group at cardia,5 cm,10 cm and 15 cm above cardia was (1.72±0.49) mm,(1.86±0.81) mm,(1.56±0.47) mm and (1.41±0.48) mm respectively,those of control group was (1.06±0.50) mm,(1.40±0.33) mm,(1.05±0.37) mm and (0.78±0.12) mm respectively.At same part,the thickness of the circular muscle layer of EA group was significantly thicker than that of the control group (t =5.326,2.903,4.778 and 6.993 respectively,all P＜0.05).After POEM treatment,complication was high in EA cases with the thickness of muscularis propria layer less than 2 mm.Conclusion Before POEM treatment,EUS examination for EA patients has certain guiding significance.

Abstract?AIM: To assess the current situation of trachoma in Shaanxi Province and analyze its epidemiology and clinical features.?METHODS: The World Health Organization ( WHO ) simplified trachoma grading system was used for the recognition and registration of cases of trachoma. Trachoma rapid assessment ( TRA ) was conducted and 30.3687 million people from Shaanxi province were screened. Eyelids, eyelashes, conjunctiva and cornea were examined.The prevalence of trachoma trichiasis ( TT) in Shaanxi Province was estimated.?RESULTS: Totally 987 cases with TT were collected in Shaanxi province, in which 395 cases were male and 592 cases were female. The overall TT prevalence was 0.0325‰.The age of TT cases ranged from 25-86 years old, and concentrated in the 60-80 years old, only 58 cases were <50 years old.There were 12 cases of TT combined corneal opacity (CO) and the ratio was 1.2%. Sixty-four patients were cured by electrolysis trichiasis, the remaining 923 patients corrected by surgery interventions.?CONCLUSION: Based on the results of this study, trachoma blind is no longer estimated as a public health problem in Shaanxi province, as the detection rate of TT was less than 1‰ which is the goal of “elimination of trachoma” worldwide.

OBJECTIVETo study the effect of iodine supplementation on infant mortality and growth in Xinjiang.

METHODSUrine iodine, height and head circumference (HC) of children aged 5 years in two townships was measured before and yearly after iodine supplementation of irrigation water. Height and HC were expressed as Z scores (United States children used as the reference group). Neonatal and infant mortality rates were obtained from official records in three counties from 1988 to 1999, and analyzed by a logistic regression model.

RESULTSThe odds ratio of infant mortality decreased 56.49% and neonatal mortality 65.71% respectively after iodination; there was no significant difference in the odds ratio of infant or neonatal mortality between experimental and control areas without iodination. In Langru township, the mean height of 5 year-old children increased from 95 cm in 1992 to 106.9 cm in 1998 - 1999, and HC from 48.4 cm to 50.5 cm. Median urine iodine increased from <10 to 176 micro g/L. In Bakechi township, mean height increased from 91 cm in 1993 to 106.5 cm in 1998 - 1999, HC from 48.7 to 49.6 cm, and median urine iodine from 39 to 138 micro g/L.

CONCLUSIONIn Xinjiang, adequate iodine treatment markedly decreased infant and neonatal mortality, and largely preventing stunting of height and HC in children.

Adolescent ; Adult ; Animals ; Body Height ; drug effects ; Child ; Child Development ; drug effects ; Child, Preschool ; Female ; Humans ; Infant ; Infant Mortality ; trends ; Iodine ; analysis ; pharmacology ; urine ; Logistic Models ; Male ; Odds Ratio ; Plants ; chemistry ; Soil ; analysis ; Thyroid Gland ; chemistry ; Time Factors ; Water ; chemistry

OBJECTIVETo identify the differentially expressed microRNAs (miRNAs) between esophageal squamous carcinoma (ESC) and adjacent non-tumorous tissue (NT).

METHODSThe expression levels of the miRNAs were detected in 3 fresh ESC and NT samples by hybridization with miRNAs microarray chip. Real-time quantitative RT-PCR was performed to confirm the results of the microarray analysis. The expressions of hsa-miR-126 and hsa-miR-518b in ESC were validated by real-time quantitative RT-PCR in another independent 15 matched samples.

RESULTSA total of 11 miRNAs exhibited differential expressions in ESC samples as compared to their expressions in the NT samples, including a 1 up-regulated miRNA and 10 down-regulated miRNAs. Compared with normal esophageal samples, the ESC tissues showed up-regulated hsa-miR-126 and down-regulated hsa-miR-518b expression.

CONCLUSIONhsa-miR-126 and hsa-miR-518b are differentially expressed in ESC, and they might play important roles in the carcinogenesis and progression of ESC.

Biomarkers, Tumor ; metabolism ; Carcinoma, Squamous Cell ; genetics ; pathology ; Esophageal Neoplasms ; genetics ; pathology ; Gene Expression Profiling ; methods ; Gene Expression Regulation, Neoplastic ; Humans ; MicroRNAs ; genetics ; Tumor Cells, Cultured

OBJECTIVESTo study the expression of Smad1 and Smad5 in the testis of infertile rats with adenine-modeled kidney-yang deficiency and the pathological mechanism of infertility with kidney-yang deficiency, attempting to obtain experimental evidence for the prevention and treatment of male infertility.

METHODSForty-eight 60 d male SD rats were divided randomly into 6 groups with 8 in each: 7 d, 14 d and 21 d kidney-yang deficiency groups, and 7 d, 14 d and 21 d control groups. The experimental rats had been fed with adenine (300 mg/kg) and the expression levels of Smad1 and Smad5 were measured with immunohistochemical SABC method at the 7th, 14th and 21st day.

RESULTSSmad1 immunoreactivity was mainly located in the spermatogonia, spermatocytes and spermatids, and the reactive substance distributed in cytoplasm with negative nuclei. Sertoli cells and Leydig cells were negative. Compared with the control, the expression level of Smad1 was decreased significantly at the 21st day (P < 0.05), but with no significant difference at the 7th and 14th day (P > 0.05). Smad5 immunoreactivity was mainly located in the spermatogonia and spermatocytes, and the reactive substance distributed in cytoplasm with negative nuclei. Compared with the control, the expression level of Smad5 was not significantly different at the 7th day (P > 0.05). The expression of Smad5 was negative at the 14th and the 21st day.

CONCLUSIONThe weaker expression of Smad1 and no expression of Smad5 may be one of the pathological mechanisms of infertility with adenine-modeled kidney-yang deficiency.

Animals ; Infertility, Male ; metabolism ; pathology ; Male ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Smad1 Protein ; biosynthesis ; Smad5 Protein ; biosynthesis ; Testis ; metabolism ; Yang Deficiency ; metabolism ; pathology