Four compounds were isolated from the ethanolic extract of the bark of Alseodaphnehainanensis Merr. , The structures were identified as: a neolignan eusiderin A [(7R, 8R)-3,4,5,3′-tetram-ethox-△8’，9’-8-o-4’，7-o-5’lignan]（I）two benzylisoquinoline alkaloids (6,7-dimethoxyisoquinolinyl)-(4′-methoxyphenyl) methanone(Ⅱ), and( 6, 7-methylenedioxyisoquinolinyl )-( 4′-methoxyphenyl ) methanone (Ⅲ), and 4-hydroxy-3-methoxy benzoic acid ( Ⅳ ) on the basis of HR-SIMS，1HNMR，13CNMRand 2D-NMR spectroscopic analysis. CompoundsⅠ～Ⅲ were obtained from the Alseodaphne genus forthe first time.

Objective To investigate the prevalence of adult osteofluomsis in the endemic fluomsis areas in Tianjin and to provide scientific foundation for endemic fluorosis.Methods Stratified sampling in 55 villages were selected in 3 areas with slight,moderate and severe fluorosis regions in Tianjin from April to June in 2008.Water fluorine were tested and clinical osteofluorosis examinations were conducted to the population aging 16 and above in the villages.Tweenty villages were selected randomly in the slight,moderate and severe fluorosis regions.X-ray osteofluorosis examination were conducted to patients and suspected patients in these 20 villages.Results The geometric mean fluoride content in the water for the 3 areas were 1.35 mg/L,3.44 mg/L,5.49 mg/L,respectively.The prevalence of osteofluorosis were 36.7%(44/120),20.6%(33/160),39.4%(43/109),respectively.The prevalence of osteofluorosis Was increased gradually(r=0.534,P<0.01)and the symptoms and signs of the disease were more serious(H=84.813,P<0.01).The prevalence of X-ray diagnosis Was increased gradually(r=0.990,P<0.01)and signs of the disease were more severe(H=25.169,P<0.01)with an increase in age.There was no statistical significance of prevalence rate of osteofluorosis between males and females,regardless if it Was a clinical diagnosis(X2=0.343,P>0.05)or an X-ray diagnosis(X2=3.532,P>0.05).Conclusions Adult osteofluorosis to a certain extent is still prevalent in the fluorosis areas in Tianjin.Endemic fluorosis is still rampant.Improving water in fulorosis areas should be mandatory.

The paper is focused on the clinical applications of Tanreqing injection after listing, detecting and analyzing the related blood indicators of patients with allergic reactions based on prospective, multi-center, large sample, registration-type clinical safety monitoring nested case-control study (NCCS) to explore the possible mechanisms of allergic reaction of Tanreqing injection, 3 006 patients cases used with Tanreqing injection were monitored, including 3 cases of adverse reactions and 2 cases of allergic reactions. Each patient of allergic reactions, according to the ratio of 1:4 matches four cases of not adverse reactions as a control group of patients, while 5 healthy and 5 cases of volunteers into the healthy group. We examined the correlation detection of cases of allergic reactions among groups such as T-IgE, IgA, IgG, C3, C4, IFN-g, IL-2, IL-4, IL-6, IL-10. Allergic reactions of Tanreqing injection may be mediated by IgE as type I based on existing research data. This results and conclusions will promote the justifiability and safety of clinical applications.
Adolescent ; Adult ; Case-Control Studies ; Drugs, Chinese Herbal ; administration & dosage ; adverse effects ; Female ; Humans ; Hypersensitivity ; diagnosis ; metabolism ; Interleukin-10 ; metabolism ; Interleukin-2 ; metabolism ; Interleukin-4 ; metabolism ; Interleukin-6 ; metabolism ; Male ; Prospective Studies ; Young Adult

Aim The purpose of this study was to compare the differential expression of 15-lipoxygenase isoenzymes in the pulmonary arteries between normoxia and hypoxia and to explore their roles in the formation of hypoxic pulmomary vasoconstriction. Method Eighteen SD rats were randomly divided into two groups(n=9):the normoxic control group breathing fresh gas and the hypoxic group breeding in animal hypoxic incubator.Immunohistochemical method,in situ hybridization and Western blot were employed to determine certain 15-lipoxygenase isoenzymes which involved in the process of hypoxic pulmonary vasoconstriction.Results ①In normoxic control group,the expression of 15-LO-1 protein was detected in the pulmonary arteries;but the expression of 15-LO-2 protein wasn’t detected.②The expression of 15-LO-1 protein in hypoxic group was much stronger than that in normoxic group (P

Objective The purpose of this work was to compare the efficacy of narrow band imaging-assisted transurethral resection of bladder tumour (TURB) with conventional white light imagingassisted TURB in primary non-muscle-invasive bladder cancer.Methods Several databases were searched,including Cochrance Libarary,PubMed,Embase,Wanfang,VIP,CNKI and CBM.The endpoints were biochemical failure in 3 months,1 year and 2 years.We performed a meta-analysis of the published data.The results are expressed as risk ratio (RR),with the corresponding 95％ confidence interval (CI).Results The final analysis included seven trials comprising 1889 patients.Biochemical failure in 3months (RR0.73,95％ CI 0.55-0.96;P =0.02),1 year(RR 0.69,95％ CI 0.58-0.80;P ＜ 0.01) and 2 years (RR 0.58,95％ CI 0.41-0.82;P =0.002) were fewer in patients who received narrow band imagingassisted TURB.The recurrence rates of 3 months,1 year and 2 years were 14.44％,29.35％ and 30％ in white light imaging group.The recurrence rates of 3 months,1 year and 2 years were 3.61％,9.35％ and 12.59％ lower in narrow band imaging group compared with white light imaging group.Conclusions Narrow band imaging-assisted TURB was superior to conventional white light imaging-assisted TURB in primary non-muscle-invasive bladder cancer in 2 years.

OBJECTIVE: To investigate the allergens distribution of 576 allergic rhinitis patients in Qingyang, and to provide basic epidemiologic information for the prevention and treatment of allergic rhinitis. METHOD: Skin prick test was done to all the 576 patients with allergic rhinitis with 28 kinds of allergens. RESULT: Four hundred and eighty cases (83.3%) showed positive reaction to at least one allergen of 28 allergens. The most common allergens were Magwort (73.3%), Giant Ragweed (55.0%) Tree II (51.7%), Tree I (48.3%) Dermatophagoides farinae (43.3%) and Dermatophagoides pteronyssinus (36.7%). Moreover. the positivity decreased with age. There was no difference between male and female. CONCLUSION The study shows that Magwort. Giant ragweed and tree II are the most important allergens on Qingyang district.
Adolescent ; Adult ; Aged ; Allergens ; analysis ; classification ; Animals ; Child ; Child, Preschool ; China ; Female ; Humans ; Male ; Middle Aged ; Mites ; immunology ; Pollen ; immunology ; Rhinitis, Allergic ; Rhinitis, Allergic, Perennial ; diagnosis ; immunology ; Skin Tests ; Young Adult

BACKGROUND:Human amniotic epithelial cells are an important source of cells in regenerative medicine as its multipotentation, but new studies mainly focused on differentiation features and there were little research oneffect of culture in vitro on biological property of amniotic epithelial cells.
OBJECTIVE:To analyze the effects of in vitro culture on growth, cellphenotype and differentiation capacity of human amniotic epithelial cells into cardiomyocyte-like cells, and explore the correlation of primarily cultured human amniotic epithelial cells marker SSEA-4 expression level and the change of biological characteristics of human amniotic epithelial cells.
METHODS:Primarily cultured human amniotic epithelial cells were obtained from amniotic tissues by using the same separation protocol. Human amniotic epithelial cells were cultured in vitro. The proliferation, cellphenotype and the differentiation capacity of human amniotic epithelial cells into cardiomyocyte-like cells were evaluated by means of cellcounting kit-8, flow cytometry and real-time PCR.
RESULTS AND CONCLUSION:The SSEA-4 positive cells in primarily cultured human amniotic epithelial cells from different fetal tissues were between 26.7%-97%, which indicated that there was great individual difference among amniotic tissue samples. Moreover, with passage, the SSEA-4 expression in human amniotic epithelial cells decreased significantly, which did not correlate with the SSEA-4 expression in primarily cultured human amniotic epithelial cells. Results indicated that there was great individual difference in SSEA-4 expression level in primarily cultured human amniotic epithelial cells from different amniotic tissue samples. Thus, it is necessary to set up clinical screening indexes to get samples with higher SSEA-4 expression stably and to control the quality of human amniotic epithelial cells. In addition, during culture period, SSEA-4 expression level was affected by culture conditions. The culture conditions of human amniotic epithelial cells should be optimized to maintain SSEA-4 expression at a high level. In addition, the differentiation capacity of human amniotic epithelial cells into cardiomyocyte-like cells was also affected by individual difference among different samples and culture conditions, which wil be further studied in the future.

Objective:To observe the effect of herbal cake-partitioned moxibustion on liver X receptor alpha (LXRα) in rabbits with atherosclerosis.Methods:Thirty-six male New Zealand rabbits were randomly divided into a normal group,a model group,a herbal cake-partitioned moxibustion group and a simvastatin group according to the random number table method,with 9 rabbits in each group.Rabbits in the model group,the herbal cake-partitioned moxibustion group and the simvastatin group were modeled by high fat feeding method which took 12 weeks.After verification of the successful model,rabbits in the normal group were not treated,in the model group were bundled,in the herbal cake-partitioned moxibustion group were treated with herbal cake-partitioned moxibustion,and those in the simvastatin group were treated with simvastatin,all for a total of 4 weeks.At the end of the experiment,the aorta and liver were observed for pathological changes;serum and liver were used to detect lipid levels;Western blot (WB) and real-time quantitative polymerase chain reaction (RT-qPCR) were used to detect LXRα protein and mRNA expression levels,respectively.Results:Compared with the normal group,the structure of aorta was disordered,the wall was rough and thick,the intima was unsmooth,and the vascular smooth muscle cells were arranged closely and disorderly in the model group,which was consistent with the characteristics of the rabbit model of aortic atherosclerosis.Compared with the model group,the aortic structure was clear,the degree of hepatocyte degeneration was reduced,the serum total cholesterol and low-density lipoprotein levels were significantly decreased (all P＜0.01),the high-density lipoprotein level was elevated (P＜0.01),and the total liver cholesterol was decreased significantly (P＜0.01) in the rabbits of the herbal cake-partitioned moxibustion group and the simvastatin group;compared with the model group,the protein (P＜0.01 or P＜0.05) and mRNA (P＜0.01) expressions of rabbit LXRα in the herbal cake-partitioned moxibustion group and the simvastatin group were increased.Conclusion:Herbal cake-partitioned moxibustion can improve the aortic and hepatic lesions,regulate blood lipid and liver lipid levels,increase the expression of liver cholesterol reverse transport nuclear receptor LXRα,promote reverse cholesterol transport in the rabbits with aortic atherosclerosis,therefore produces an antiatherogenic effect.

BACKGROUNDPeriostin originally designated osteoblast-specific factor 2 (OSF-2) is frequently found to be highly expressed in various types of human cancer cell lines in vitro and human cancer tissues in vivo. We proposed that periostin was a key factor during the process of proliferation and invasion in cancer cells. We investigated the effect of periostin on the function of human osteosarcoma cell line (U2OS), such as proliferation, apoptosis, invasion and the associated signal pathway.

METHODSA human PGCsi/U6 promoter-driven DNA template was adopted to induce short hairpin RNA (shRNA)-triggered RNA interference (RNAi) to block periostin gene expression in the cell line U2OS. U2OS cells were divided into three groups: cells transfected with phosphate buffered saline as control group (the U2OS group), cells transfected with pGCsi as negative control group (the NC group) and cells transfected with periostin/pGCsi as experimental group (the pGCsi-periostin group). Then, transfection efficiency of cell was observed under fluorescent microscope. The expressions of periostin and the related genes in cells were detected by reverse transcription polymerase chain reaction and Western Blotting. Cell viability was determined using the methyl-thiazolyl tetrazolium bromide (MTT) quantitative colorimetric assay. The invasion and migration capability of cells were tested by transwell plates with or without extracellular matrix gel. Furthermore, the changes of cell cycle and apoptosis were analyzed by flow cytometry.

RESULTSThe transfection efficiency of periostin/pGCsi to U2OS cells was about 70% - 80%. When compared with the NC group, the levels of mRNA and protein of periostin in the pGCsi-periostin group decreased by 82% (F = 564.71, P < 0.001) and 58% (F = 341.51, P < 0.001), respectively. Meantime, the earlier apoptosis value increased by 417% (F = 28.69, P < 0.001). The percentage of S phase pGCsi-periostin cells decreased by 21% (F = 47.00, P < 0.001), however, that of G0 - G1 phase cells increased by 12% (F = 14.50, P < 0.001). The capability of migration and invasion reduced by 41% (F = 17.79, P < 0.001) and 72% (F = 197.08, P < 0.001), respectively. The cell proliferation in the pGCsi-periostin group decreased by 59% and 72% at 48 and 120 hours after transfection, respectively. The mRNA expressions of transforming growth factor-β and vascular endothelial growth factor decreased by 17% (F = 73.99, P < 0.001) and 47% (F = 30.25, P < 0.001), respectively. A tendency of lower focal adhesion kinase (FAK) was shown in pGCsi-periostin cells but without any statistically significant difference. Otherwise the expression of p-FAK in those cells had markedly decreased by 21% (F = 16.81, P < 0.001).

CONCLUSIONSRNAi against periostin can effectively down-regulate periostin gene expression. Periostin increases the hyperplasia and invasion of cancer cells. Periostin might be involved in and served as a tumor promoter gene in the pathogenesis of osteosarcoma.

Apoptosis ; Bone Neoplasms ; etiology ; pathology ; Cell Adhesion Molecules ; antagonists & inhibitors ; genetics ; physiology ; Cell Cycle ; Cell Line, Tumor ; Cell Proliferation ; Focal Adhesion Protein-Tyrosine Kinases ; metabolism ; Humans ; Integrin alphaVbeta3 ; physiology ; Neoplasm Invasiveness ; Osteosarcoma ; etiology ; pathology ; Phosphorylation ; RNA Interference ; Transfection

OBJECTIVECOL9A1 gene is located in the susceptibility region of idiopathic congenital talipes equinovarus (ICTEV) (6q12-13). This study aimed to investigate the expression of the COL9A1 gene and the distribution of single nucleotide polymorphism (SNP) of COL9A1 gene in patients with ICTEV and normal controls.

METHODSImmunohistochemistry was used to detect the expression of COL9A1 in 25 children with ICTEV and 5 normal controls. The frequencies of genotypes and allele of two SNPs in COL9A1 gene rs35470562 and rs1135056 were investigated by PCR-restriction fragment length polymorphism (PCR-RFLP) and DNA sequencing in 118 patients with ICTEV and 100 normal controls.

RESULTSThe COL9A1 protein expression was significantly higher in 22 (88%) out of 25 children with ICTEV than normal controls. There were significant differences in the frequencies of genotypes and allele of rs1135056 in COL9A1 gene between the ICTEV and the control groups: the G allele frequency was higher, the frequency of AA genotype was lower, and the frequencies of AG and GG genotypes were higher in ICTEV patients than those in healthy controls (P<0.05).

CONCLUSIONSCOL9A1 protein is highly expressed in patients with ICTEV and rs1135056, which is located in the coding region of COL9A1 gene, may be associated with the pathogenesis of ICTEV.

Adolescent ; Child ; Child, Preschool ; Clubfoot ; etiology ; genetics ; Collagen Type IX ; analysis ; genetics ; Humans ; Immunohistochemistry ; Infant ; Polymorphism, Single Nucleotide