Child ; Female ; Hematemesis ; complications ; Humans ; Tracheoesophageal Fistula ; complications ; congenital

Objective To explore the diagnosis value of ultrasound real-time elastography in thyroid diffuse diseases.Methods Eleven elastic quantitative parameters of 123 patients with thyroid diffuse diseases and 42 healthy volunteers obtained from the ultrasound real-time elastography were analyzed with principal components analysis to attain a comprehensive evaluation value which was named stiffness index(SI),reflecting the organization elastic information of different thyroid diffuse diseases.SI among each group was compared by ANOVA.Results Chronic lymphocytic thyroiditis SI was 86.37±20.45,subacute thyroiditis SI was 86.14±19.95,primary hyperthyroidism SI was 54.68±21.69,normal control group SI was 41.34±15.59,respectively.The SI between chronic lymphocytic thyroiditis,subacute thyroiditis,primary hyperthyroidism and normal controls had significant statistical differences (P<0.05),the SI between primary hyperthyroidism and chronic lymphocytic thyroiditis,subacute thyroiditis had significant statistical differences (P<0.05),the SI between chronic lymphocytic thyroiditis and subacute thyroiditis had no significant statistical difference (P>0.05).Conclusions Ultrasound real-time elastography could indirectly reflect the stiffness information of thyroid lension tissue and have a certain degree of diagnosis value in thyroid diffuse disease.

Objective To analyse the prognostic value of serumal copeptin in patients with acute exacerbation of COPD compli-cated withrespiratory failure.Methods The serumal copeptin were detected in 60 hospitalized AECOPD patients before and after the treatment and in 30 healthy controls.Results Comparing with control groups,the serumal levels was significantly elevated in the patient with AECOPD before thetreatment and declinied two months later(P <0.05).The level of serum copeptin wereincreasing with the increase in the severity of the disease in acertain extent;The serumalcopeptin were positively correlated with lung function and CAT (r=0.058 and 0.821,P =0.00)and were negativelycorrelated with 6MWD(r=-0.652,P =0.00).Conclusion Serum copeptin could as-sess the incidence of acute exacerbations ofchronic obstructive pulmonary disease and its therapeutic effect;Serum copeptin can reflect the se-verity of AECOPD patients in a certain extent,and has certain clinical value to evaluate the quality of life in patients.

Objective: To establish a method of quantitative analysis of multi-components by single-marker (QAMS) for simultaneously determination of neoastilbin, astilbin, neoisoastilbin, isoastilbin, and engeletin in Smilax glabra, and research the tendency of content changes in different growth years by QAMS. Methods: An HPLC method was established to determine the relative correction factors of four other flavonoids by using astilbin as the internal reference standard. Then the method was used to determine the various content of five flavonoids in different growth years and validate the feasibility and accuracy by comparing the content results determined by the external standard method with QAMS. The dynamic change regularity of flavonoids in S. glabra was investigated. Results: A total of 23 samples from five batches in different growth years were simultaneously determined by external standard method and QAMS, the results deviation were all less than 1.0%. The content of five flavonoids in different growth years was different, astilbin decreased with the increase of growth years, neoastilbin, neoisoastilbin and isoastilbin had the reverse trend. Conclusion: The established QAMS method is feasible and accurate for the simultaneous determination of five flavonoids in S. glabra. Growth years have a certain impact on the content of each component.

Aflatoxins, one of highly toxic and carcinogenic mycotoxins, are widespread in nature including Chinese materia medica (CMM). A simple, fast, high-throughput and on-site detection method is urgent needed for the screening the aflatoxins content in CMM to guarantee its safety. Enzyme linked immunosorbent assay (ELISA) and gold immune chromatograohic assay (GICA) provide an effective technique for the high-throughput detection and on-site single or a few of samples real-time detection of aflatoxin. There have no standard methods though many immunoassays have been established in some studies. The objective of our work is to make a research on the progress of immunoassay for aflatoxin determination and to provide a reference for the standard establishment.

Adult ; Aged ; Aged, 80 and over ; Antifungal Agents ; therapeutic use ; Female ; Hematologic Neoplasms ; drug therapy ; microbiology ; Humans ; Male ; Middle Aged ; Mycoses ; complications ; drug therapy ; Pyrimidines ; therapeutic use ; Treatment Outcome ; Triazoles ; therapeutic use ; Voriconazole ; Young Adult

To explore the regulation of eIF4E, we screened the protein interacting with eIF4E from human cDNA library by using yeast two-hybrid system. Several clones interacting with eIF4E were identified. One of them was homologous with HUWE1 (HECT, UBA and WWE domain containing 1, also named as ARF-BP1, HECTH9 or HUWE1). Cell co-immunoprecipitation showed that eIF4E could bind to HUWE1 in mammalian cells. We also found that HUWE1 bearing the HECT domain is necessary for its association with eIF4E.
Animals ; Eukaryotic Initiation Factor-4E ; metabolism ; Humans ; Ubiquitin-Protein Ligases ; metabolism

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.

Injectable bone tissue engineering scaffold material has a certain form and mechanical strength.It can be loaded with seed cells for injection to the defected site of bone tissue in the form of fluid.After that,structural recovery and functional reconstruction are achieved,and the new bone is formed ultimately.This material has the characteristics of small trauma and good plasticity.It can repair the irregular bone defects and well associate with growth factor,which is the ideal method for repairing bone tissue defects up to now.Among the various injectable bone tissue engineering materials,bioceramic materials,polymer materials,etc.have been proved to have a high biological compatibility and good mechanical properties.That makes these materials become the focus of current research in bone tissue engineering materials.In this paper,the development and application of bioceramic materials,polymer materials,bioceramics and polymer composites were reviewed.

Background Misfolding of Myocilin protein plays an important role in the pathogenesis of primary open angle glaucoma (POAG).GRP78 can transfer the misfolded proteins out endocytoplasmic reticulum and keep the protein synthesis function of endoplasmic reticulum.However the relationship between GRP78 and Myocilin in the pathogenesis of POAG has not been elucidated.Objective This study was to investigate and analyze the coexpressions of GRP78 and Myolicin in trabecular meshwork cells (TMCs) of POAG.Methods The trabecular meshwork tissues were obtained during the surgery of POAG and healthy donor for the isolated and in vitro culture of TMCs,and the morphology of the cells was compared between POAG-derived TMCs and donor-derived TMCs.The expression of specific factors for TMCs were detected by immunochemistry.The cells were divided into normal control group,tunicamycin (Tm)-treated group and staurosporine (STS)-treated group,and the cells were cultured by regular medium,the 1 μ mol/L Tm medium or 0.1 μmol/L STS medium for 24 hours respectively.The co-expression of GRP78 and Myocilin in the cells were detected using immunofluorescence assay.This study was approved by Ethics Committee of Xi'an No.4 Hospital,and written informed consent was obtained from each patient before surgery.Results Primarily cultured cells showed the fiat star-like and irregular appearance with 3-5 processes,round nuclei,abundant cytoplasm and black engulf particles.The 3-7 generations of POAG-derived cells grew well,showing positive expressions of laminin (LN),fibronectin (FN),neuronal specific enolase (NSE) and Vimentin.Immunofluorescence assay showed positive expressions of GRP78 and Myocilin in the cells of the Tm group,STS group and normal control group,with the reddish and green fluorescence separately.Incomplete co-expression of GRP78 and Myocilin was seen in donor-derived TMCs,and complete co-expression of GRP78 and Myocilin was found in the POAG-derived TMCs in the normal control group.Complete co-expression of GRP78 and Myocilin was exhibited in both donor-and POAG-derived TMCs in the Tm group and STS group.In addition,accumulation of GRP78 protein around nucleus was seen in both donor-and POAG-derived TMCs in the Tm group.Conclusions GRP78 and Myocilin proteins are completely co-expressed in POAG-derived TMCs,inferring that GRP78 and Myocilin play an interaction role in the pathogenesis and development of POAG.GRP78 may play a cytoprotective role against the apoptosis of TMCs caused by endoplasmic reticulum stress.