Exploring effective components and molecular targets of Guizhi decoction for treatment of COVID-19 combined with allergic rhinitis based on network pharmacology and molecular docking / 中国药理学通报

Aim To explore the effeetive components and molecular targets of Guizhi decoetion in treating COVID-19 combined with allergic rhinitis.Methods The potential targets assoeiated with Guizhi deeoetion, allergie rhinitis and COVID-19 were sereened from TC- MSP and Gene Cards databases.Draw Venn Diagram website, String database, and Cytoscape software were used to obtain the common targets of drugs and diseases, followed by generation of PPI network and " herbal-active component-target" network as well as screening of core targets and key components based on the degree value.Metascape and KEGG databases were used for GO and KEGG enrichment analysis.Molecular docking was utilized to validate the affinity between the core targets and the key components.Results A total of 127 effective components of Guizhi decoction were screened, of which 108 components could combine with 52 common targets to exert the therapeutic effects.Common targets were mainly enriched in 1523 (X) terms and 145 KEGG signaling pathways.Molecular docking confirmed that the core targets could spontaneously combine with key components.Conclusions Guizhi decoction is mainly involved in the regulation of viral, immune and inflammation-related signaling pathways and biological cellular processes through the binding of active components such as flavonoids, phy- tosterols and phenols to common targets ( IL-6, TNF, MAPK3, etc.) , ultimately achieving the goal of treating COVID-19 and allergic rhinitis.

Study on mechanism of Trillium tschonoskii Maxim in treatment of myocardial ischemia based on network pharmacology and molecular docking / 中国药理学通报

Aim To reveal the aetion mechanism of Trillium tschonoskii Maxim (TTM) in the treatment of myoeardial ischemia ( MI) by using network pharma¬cology combined with molecular docking.Methods Compounds of TTM were detected and fished out from TCMID, TCM@TAIWAN , BATMAN-TCM database, and the literature data from PubMed , CNK1, and WAN- FANGD database.PharmMapper database was used to find the targets related to compounds, and DISGeNET, GeneCards, DrugBank and OMIM databases were used to find the targets related to Ml.The predictive targets of TTM in the treatment of Ml were obtained.Cytosca- ope 3.1.2 Software and String database were used to build compound-target network and PP1 network.Gene ontology ( GO ) functional enrichment analysis and Kyoto Encyclopedia of Genes and Genomes ( KEGG ) pathway enrichment analysis were performed by utili¬zing the CludterProfiler Software package of RStudio software.The molecular docking was used for verifying the results of network analysis.Results The 10 active compounds of TTM were screened , and 13 core targets of Ml were predicted, such as ALB, EGFR, MAPK1 , CASP3,ESR1 ,etc.A total of 28 Ml-related signaling pathways were fished out.The results of molecular docking showed that the core active ingredients had good binding activity with the key targets.Conclusion TTM may play a role in the treatment of Ml through regulating multiple ingredients, multiple pathways, and multiple targets.

miR-520d over-expression reverses chemotherapy resistance of TNBC via inhibiting autophagy protein Beclin1 / 中国肿瘤生物治疗杂志

@# Objective: To investigate the role and molecular mechanism of miR-520d in reversing the chemoresistance of triple negative breast cancer (TNBC) by regulating autophagy. Methods: Docetaxel (Doc) resistant cell lines MDA-MB-231/Doc and MDA-MB468/Doc were constructed by using human TNBC cell lines MDA-MB-231 and MDA-MB-468 as parental cells, and the cells were divided into blank group (parental cells), control group (drug-resistant group), and miR-520d over-expression group. The expression levels of miR-520d in cells of the blank and drug-resistant groups were detected by qPCR. The Doc-sensitivity of resistant cells over-expressing miR-520d was detected by MTT assay.After MDC staining, the generation of autophagosome in cells was observed under fluorescence microscopy; the number of miR-520d over-expressed resistant cells with positive LC3 expression was observed under confocal microscopy. The luciferase reporter gene assay was used to verify the targeting relationship between miR-520d and Beclin1. The effect of miR-520d mimics on the expression of autophagy-associated protein Beclin1, and LC3Ⅰ, LC3Ⅱ in cells was detected by WB assay. Results: The results of qPCR showed that the expression of miR-520d in the drug-resistant TNBC cells was significantly lower than that of normal cells (P<0.01). In drug-resistant cells over-expressing miR-520d, the Doc-sensitivity was significantly improved, while the autophagy activity was significantly reduced (all P<0.01).At the same time, luciferase experiments demonstrated that Beclin1 was a possible target molecule of miR-520d (P<0.05). WB results showed that the combination of docetaxel and miR-520d mimics reduced the LC3-II/I ratio and the expression of autophagy protein Beclin1 in drug-resistant TNBC cells (all P<0.05). Conclusion: The regulation of miR-520d levels may alter the expression of autophagy protein Beclin1, thereby reversing Doc chemotherapy resistance in TNBC cells.

Studies on high-efficiency loading, sustained-release and permeability as transdermal delivery of graphene oxide to docetaxel composites / 中草药

Objective: To synthetize the new-type GO-DEX-β-CD/DOC and Fe3O4/GO-Na/DOC inclusion compound, and study its high-efficiency loading, sustained-release and permeability as transdermal delivery for docetaxel (DOC) composites. Methods: The concentration of DOC was determined by high efficiency liquid chromatography. The high-efficiency loading, sustained-release and permeability as transdermal delivery of GO-DEX-β-CD/DOC and Fe3O4/GO-Na/DOC were studied, and the encapsulation efficiency and drug loading of them were determined by centrifugation. The GO-DEX-β-CD/DOC and Fe3O4/GO-Na/DOC were applied onto the female mice skin in vitro and in vivo to develop the permeability of them. Results: The encapsulation efficiency and drug loading of Fe3O4/GO-Na/DOC were higher than GO-DEX-β-CD/DOC, and its slow release property and permeability as transdermal delivery were better. The results showed that the accumulation permeation amount was (22.512 ± 0.715) μg after Fe3O4/GO-Na/DOC being applied over 90 h, DOC concentration in skin reached a peak at 15 min by the application of Fe3O4/GO-Na/DOC. After 5 h of administration, DOC concentration in the blood of female mice reached (76.886 ± 1.232) μg/mL. Conclusion: The preparation techniques of Fe3O4/GO-Na/DOC was feasible with better sustained release and transdermal effect, which had a promising application prospect.

Professor SUN Yiqiu's Clinical Experience in Treating Allergic Cough / 浙江中医药大学学报

[Objective] To discuss the academic point of view and clinical experience of Professor SUN Yiqiu in diagnosing and treating allergic cough in children. [Methods]The data were collected by method with sommelier diagnosis,from the pathogenesis and treatment aspects of academic ideas of Professor SUN Yiqiu in treatment of children allergic cough and clinical experience, the prescription and Chinese medicine conditioning characteristics are summarized,with case for evidence.[Results]Professor SUN Yiqiu believes that wind invading the lung is the forerunner of this disease,the key pathogenesis of lung deficiency and pathogen retention,to remove evil is the basic treatment principle;clinical value of cure from the"wind",advocate"Yufeng"Quxie law to improve their body resistance,thus reducing the incidence,alleviate symptoms,play the role of qufengzhike;clinical use of modified Yuping Feng Pulvis in treatment of this disease, on the basis of addition and subtraction, using both specimens, prevention concept, emphasizing the combination of syndrome differentiation and disease differentiation,syndrome differentiation and symptomatic symptoms a combination gets significant effect. [Conclusion]Professor SUN Yiqiu's experience in the treatment of allergic cough in children is clinically effective and can be used for clinical reference.

Platelet exocytosis protein DOC2B is an early biomarker of type 1 diabetes / 中华内分泌代谢杂志

Efforts to preserve β-cell mass in the preclinical stages of type 1 diabetes (T1D) are limited by few blood-derived biomarkers of β-cell destruction. Platelets are proposed to be the sources of blood-derived biomarkers for a variety of diseases, and they show distinct proteomic changes in T1D. Thus, studying these proteomic changes may provide us with biomarkers of β-cell destruction. This paper is the Chinese translation of " Exocytosis protein DOC2B as a biomarker of type 1 diabetes" , published on " The Journal of Clinical Endocrinology & Metabolism" in May 2018 [Aslamy A, Oh E, Ahn M, et al. J Clin Endocrinol Metab, 2018, 103(5): 1966-1976] after obtaining the copyright from the original journal. This study aimed to investigate the changes in the exocytosis protein double C2 domain protein-β (DOC2B) in platelets and islets from T1D humans, pre-diabetic NOD mice, and from T1D patients after islet transplantation. The results showed that the DOC2B protein abundances were substantially reduced in platelets of prediabetic NOD mouse and new-onset T1D patients, while platelet DOC2B levels were increased after islet transplantation in T1D patients. Thus, reduction of DOC2B is an early feature of T1D, and DOC2B abundance may serve as a valuable in vivo indicator of β-cell mass as well as an earlier biomarker of T1D. (Chin J Endocrinol Metab, 2018, 34: 615-622)

An Experimental Study on the Carbon Flux within the Coral Community.

The flux of carbon within the coralline ecosystem has been a subject of great interest in the recent decades. So far several studies had been conducted to understand actual process of carbon transfer within this system and it is an elusive factor on science because of the complex process. An attempt had been made to delineate the source and sink of carbon within the coral ecosystem by establishing small experimental set up in the present study. For these study, four experimental tanks, each consisted of a different community of coral ecosystem was set up in Pondicherry University, Port Blair, Andaman Islands, India. The Tank A was set up with a most prevalent sponge species Stylissa massa, in this part of the study area, Tank B consisted of sponge Lamellodysidea spp., Tank C consisted of macroalgae community i.e. of Padina spp. of an area of 620 cm2 and Tank D had a soft coral Sarcophyton spp. All these species were collected from Burmanallha, a region characterized by rich species diversity. The results indicated that the algal and sponge community provided carbon to support the growth of coral reefs. Coral utilized this carbon for their growth. It was also observed that fluctuation of environmental and physical parameters induced biological stress within the life forms resulted in the release of excess inorganic carbon to the surrounding water. Whenever, the opportunity were available this carbon was utilized by the system itself and managed full extent without any excess carbon.

Cultivating Medical Humanities in Intern Doctors of Respiratory Department / 中国医学伦理学

Through discussing the connotation of medical humanities spirit and the current situation of medical humanities education in our country, the authors put forward that in clinical practice, respiratory medicine interns medical ways for the cultivation of the humanistic spirit, which include: guide the trainee doctors in treating pa-tients alike, on the basis of understanding and respect for life and death;to cultivate the ability of effective commu-nication between patient and physician internship; interns cultivated the spirit of collaboration and leadership skills;the in-depth, on the basis of clinical practice, in practice the doctor to write a detailed records;construc-tion of a high level of teacher love team, set an example for the students.

Creación y personalización de una colección de documentos digitales basada en Greenstone (Parte 2) / Creating and personalizing digital documents collections in Greenstone (Part 2)

La presentación y organización de las colecciones construidas con el sistema Greenstone están dotadas de una notable flexibilidad que confiere un valor añadido al acceso a la información según los intereses, características y necesidades de los usuarios finales. En el artículo Creación y personalización de una colección de documentos digitales basada en Greenstone, se describió el diseño personalizado de una colección compuesta de archivos .doc y .pdf en lo relativo a mecanismos de búsqueda y navegación, por una parte, y cambios en algunos elementos de su página Acerca de, por la otra, los cuales se lograron a partir de disímiles cadenas de formatos correspondientes a los clasificadores y la macro extra.dm. Con el fin de profundizar en la familiarización de las ventajas de este sistema y ampliar el abanico de posibilidades que ofrece, en la segunda parte de este trabajo, se dio continuidad a la personalización de una colección similar sobre la base de la aplicación de otras cadenas de formato que operan modificaciones inmediatas en la disposición de los datos así como en la apariencia y organización de la información contenida en las diferentes páginas generadas por este sistema. Tal conjunto de posibles personalizaciones ilustra, en alguna medida, las alternativas de configuración de las salidas de esta aplicación las cuales, además, se ejecutan en forma expedita(AU)

The presentation and organization of collections built with Greenstone system are endowed with a remarkable flexibility adds value to information access in the interests, characteristics and needs of end users. Article Creation and customization of a collection of digital documents based on Greenstone, described the custom design consisting of a collection of files. Doc and. Pdf with regard to navigation and search mechanisms on the one hand, and changes in some elements of their About page, on the other, which were obtained from dissimilar formats for strings and macro classifiers extra.dm. To deepen the familiarity of the advantages of this system and expand the range of possibilities offered in the second part of this work, we continued to customizing a similar collection on the basis of the application of other format chains operating immediate changes in the provision of data as well as the appearance and organization of the information contained on the pages generated by this system. Such a set of possible customizations illustrates, to some extent, the alternative configuration of the outputs of this application which also run in an expeditious manner(AU)

Bacterioplankton features and its relations with doc characteristics and other limnological variables in Paraná river floodplain environments (PR/MS-Brazil)

Since the introduction of the Microbial Loop concept, many studies aimed to explain the role of bacterioplankton and dissolved organic carbon (DOC) in aquatic ecosystems. Paraná River floodplain system is a very complex environment where these subjects were little explored. The aim of this work was to characterize bacterial community in terms of density, biomass and biovolume in some water bodies of this floodplain and to verify its temporal variation and its relation with some limnological variables, including some indicators of DOC quality, obtained through Ultraviolet-visible (UV-VIS) and fluorescence spectroscopic analysis. Bacterial density, biomass and biovolume are similar to those from other freshwater environments and both density and biomass were higher in the period with less rain. The limnological and spectroscopic features that showed any relation with bacterioplankton were the concentrations of N-NH4 and P-PO4, water transparency, and some indicators of DOC quality and origin. The analysis of these relations showed a possible competition between bacterioplankton and phytoplankton for inorganic nutrients and that the DOC used by bacterioplankton is labile and probably from aquatic macrophytes.

Project e-HD: an archive system for electronic documents on high dilution research / Projeto e-HD: um sistema de arquivamento para documentos eletrônicos sobre pesquisa em altas diluições / Proyecto e-HD: un sistema de archivamiento de documentos electrónicos sobre la investigación em alta dilución

Peer-reviewed journals and indexing agencies play a crucial role in the construction of knowledge since they discriminate between what is good science and what it is not. However, this represents only the tip of the iceberg of knowledge: below the surface, there is a strong undercurrent of ideas, unfinished theoretical elaborations, and multiple proposals for new experimental models. Some of interesting, other more limited and a further group untenable, they all share the fact that they are left aside and hidden from the sight of most people, including the scientists. This article introduces e-HD, a novel initiative to file electronic documents (e-doc) referred to High Dilution research. It is open to pre- and post-prints, lecture slides, videos, institutional websites and any other format of e-doc relevant to HDs. e-HD seeks thus to increase the visibility of HD research in the scientific environment.

Revistas com revisão por pares e agências indexadoras exercem um papel crucial na construção do conhecimento, uma vez que discriminam o que é e o que não é uma boa ciência. No entanto, estas representam apenas o topo do iceberg do conhecimento: abaixo da superfície existe uma forte movimentação de idéias, elaborações teóricas não terminadas e múltiplas propostas para novos modelos experimentais. Algumas são interessantes, outras mais limitadas, outras inaceitáveis, porém todas dividindo o fato de que são deixadas de lado e fadadas ao esquecimento pela maioria das pessoas, inclusive os pesquisadores. Este artigo introduz o projeto e-HD, uma nova iniciativa para o arquivamento de documentos eletrônicos (e-doc) relacionados a pesquisas em Altas Diluições. e-HD está aberta para pré- e pós-prints, slides de palestras, vídeos, websites institucionais e qualquer outro formato de e-docs relevantes para a área. e-HD busca dessa forma aumentar a visibilidade das pesquisas em HD, no ambiente científico

Revistas revisadas por pares y los organismos de indexación desempeñan un papel crucial en la construcción del conocimiento, ya que discriminan entre lo que es buena y lo que es mala ciencia. Sin embargo, esto representa sólo la punta del iceberg del conocimiento: por debajo de la superficie, hay una fuerte corriente de ideas, elaboraciones teóricas no terminadas y múltiples propuestas para nuevos modelos experimentales. Algunos de ellos interesantes, otros más limitados y un grupo aún insostenible, todos comparten el hecho de que se los dejan alejados y ocultos a la vista de la mayoría de las personas, incluyendo a los científicos. En este artículo se presenta projecto e-HD, una novedosa iniciativa para reunir los documentos electrónicos (e-doc) vinculados a la investigación de las altas diluciónes. Está abierto a pre- y post-prints, las diapositivas de conferencias, videos, sitios web institucionales y cualquier otro formato de los e-doc para HD. e-HD pretende aumentar así la visibilidad de la investigación en altas diluciones en el ambiente científico

The Effect of Docetaxel Combined with 4-AP on Human Breast Cancer MCF-7 Cells / 中国肿瘤临床

Objective: To study the effect of docetaxet (DOC) combined with 4-AP on human breast can-cer MCF-7 cells and to explore whether 4-AP could strengthen the effect of docetaxel. Methods: MTT assays were performed to investigate the effect of docetaxel, 4-AP and the combination of them on the proliferation of MCF-7 cells. Flow cytometry was employed to detect cell cycles and cell apoptosis after the cells were stained by PI alone or by Annexin-V and PI. Results: Docetaxel could significantly inhibit the proliferation of MCF-7 cells in a dose- and time- dependent manner. 4-AP could inhibit the proliferation of MCF-7 cells and the inhibitory rates were 11.9%±1.7%, 42.1%±3.2%, and 44.2%±1.6% at 24h, 48h and 72h after adding 4-AP. Moreover 4-AP (5mmol/L) could strengthen the effect of docetaxel. 4-AP (25μmol/L) could increase the effect of Docetaxel. Docetaxel at 5μmol/L could significantly increase the percentage of cells at G_2/M (53.58%± 1.44% vs. 8.83%±0.44%, P<0.01) and decrease the percentage of cells at G_0/G_1 (11.48%±0.14% vs. 63.89%±0.98%, P<0.01), indicating that docetaxel blocked MCF-7 cells at G_2/M phase. 4-AP at 5mmol/L could in-crease the percentage of MCF-7 cells at G_0/G_1 and decrease the percentage of cells at G_2/M (0.42%±0.17% vs. 8.83%±0.44%, P<0.05). Docetaxel could significantly increase late apoptosis and death of MCF-7 cells af-ter treatment over 24h (from 6.97%±0.75% to 20.77%±0.75%, P<0.05). Docetaxel combined with 4-AP could increase early apoptosis rate from 4.60%±0.91% to 12.20%±0.82% (P<0.05) and could increase late apopto-sis rate and death rate from 4.60%±0.91% to 12.20%±0.82% (P<0.05). Conclusion: Both docetaxel and 4-AP can inhibit the proliferation of MCF-7 cells. Docetaxel can increase the percentage of cells at G_2/M phase and 4-AP can increase the percentage of cells at G_0/G_1 phase. 4-AP could strengthen the inhibitory effect of docetaxel on the proliferation of MCF-7 cells through inducing cell apoptosis.

Chromosomal and Subcellular Localization and Expression of Cell Cycle-related Regulator DCT1 / 中国医科大学学报

Objective To investigate the chromosomal and subcellular localization of DOC-1R terminal 1(DCT1),and detect its expression in human tissues.Methods Chromosome localization of DCT1 was detected by radiation hybrid.pEGFP-DCT1 was constructed,and HeLa cells were transfected with the plasmid.The subcellular localization of DCT1 protein was observed by fluorescence microscope.Real-time PCR was performed for the determination of DCT1 expression level in 16 kinds of human tissues.Results DCT1 was demonstrated to localize in 5q31,and its encoding protein was detected on the nuclear membrane.Additionally,DCT1 was proved to express universally in all the 16 kinds of human tissues and it was expressed at the highest level in spleen.Conclusion DCT1 might be a regulator in cell cycle,and ubiquitously express in human tissues.

Screening of binding proteins interact with phosphotyrosine-interacting domain of DOC-2 by yeast two hybrid system / 中国肿瘤生物治疗杂志

Objective: To screen for proteins which can interact with phosphotyrosine-interacting domain (PID) of differentially expressed gene in human ovarian cancer cell line DOC-2 by yeast-two hybrid technique, so as to provide evidence for the signal pathway of DOC-2. Methods: The cDNA sequence of human DOC-2 gene was amplified and its PID domain (nDOC-2) was subcloned into the bait vector pGBKT7 of yeast two-hybrid system; the product was then used to screen an embryo brain cDNA library and the proteins interacting with nDOC-2 were identified. Quadrople dropout(QDO) medium and X-?-gal were used for selecting the positive clones. PCA was used to analyze the amplified sequence. After elimination of the false positive clones, the positive clones were sequenced and analyzed by bioinformatic methods. Results:Twenty-one candidate positive clones were obtained and 3 of them were plasmids encoding Homo sapiens partial mRNA for betaglycan (TBR III gene), Homo sapiens protocadherin gamma subfamily C 3 (PCDHGC3), and APLP1(amyloid beta precursor-like protein 1).Conclusion: The proteins obtained in this study may play important roles in the signal pathway of DOC-2, which provides a new orientation for DOC-2 gene therapy of ovarian cancers

The impact of DOC-2 expression on the tumorigenesis of human ovarian cancer cell line(HO-8910) / 中国癌症杂志

Background and purpose:Studies have shown that DOC-2 could work as a potential tumor suppressor geue,and the role of DOC-2 in terms of the inhibition of cell growth and its mechanism remain unknown.Our paper is to investigate the effect and mechanism of DOC-2 expression on the tumorigenesis viability of ovarian cancer cell line HO-8910 from the aspects of clone efficiency,cell cycle and animal model test.Methods:Three cell lines were used including HO-8910,8910-P93(transfected with DOC-2 gene) and 8910-pcDNA3.1(transfected with the vector pcDNA3.1).Firstly,soft agar method was used to measure the clone efficiency.The cell cycle were analyzed by flow cytometer.The tumorigenesis viability was compared by athymic mouse test.Results:After being transfected with DOC-2 gene,the clone efficiency of 8910-P93 was markedly reduced.There was no difference between the 8910-pcDNA3.1 and HO-8910.G1 and G2 arrest were observed for 8910-P93.The athymic mouse test showed that the neoplasm derived from 8910-P93 was much smaller than that in the controls.Conclusions:DOC-2 could iniibit the tumorigenesis viability of human ovarian cancer line HO-8910.

Bacterial growth and DOC consumption in a tropical coastal lagoon

The aims of this research were to determine the main limiting nutrient to bacterial growth in Imboassica lagoon, southeastern Brazil, to estimate the percentage of dissolved organic carbon (DOC) available for bacterial growth, and to determine the bacterial growth efficiency (BGE) of natural assemblages. Bacterial growth and DOC consumption were determined in batch culture experiments, in which water samples were supplemented with nitrogen and phosphorus together or separately, or incubated without nutrient additions. When added together, N and P stimulated higher bacterial growth rates and production, as well as higher DOC consumption. The BGEs and DOC consumption rates were strongly dependent on the method used to determine bacterial production. The BGE ranged from 11 to 72%. However, only a minor fraction of bulk DOC was consumed by the planktonic bacteria (from 0.7 to 3.4%). The results suggest that low availability of phosphorus and nitrogen coupled with excess organic carbon was the main factor responsible for the relatively low bacterial utilization of DOC in Imboassica lagoon.

Os objetivos desta pesquisa foram: determinar o principal nutriente limitante ao crescimento bacteriano na lagoa Imboassica, estimar a porcentagem de Carbono Orgânico Dissolvido (COD) disponível para o crescimento bacteriano e determinar a Eficiência de Crescimento Bacteriano (ECB) da comunidade bacteriana. O crescimento bacteriano e o consumo de COD foram avaliados em experimentos de culturas de diluição, nos quais nitrogênio e fósforo foram adicionados às amostras de água, juntos ou separadamente, e um controle foi preparado sem adições de nutrientes. Quando adicionados juntos, N e P estimularam um maior crescimento e produção bacterianos, assim como maiores taxas de consumo de COD. ECB e taxas de consumo de COD foram fortemente dependentes do método utilizado para determinar a produção bacteriana. ECB variou de 11% a 72%, porém apenas uma pequena fração do COD total foi consumida pelas bactérias planctônicas (de 0,7% a 3,4%). Sugere-se que as baixas disponibilidades de fósforo e nitrogênio são os principais fatores responsáveis pela baixa utilização de COD pelas bactérias na lagoa Imboassica.

Screening of DOC-2 interactive proteins and identification of the interaction between DOC-2 and TGF?Ⅲ receptor / 中国癌症杂志

Background and purpose:DOC-2 serves as one of the tumor suppressing genes in human ovarian cancer and plays a role in the process of cell growth and differentiation.This study was to investigate the role of DOC-2 in the TGF? signal pathway and verification of the interaction between DOC-2 and TGF?Ⅲ receptor.Methods:The bait vector was constructed by inserting the PID domain of DOC-2(nDOC-2)into yeast express vector pGBKT7.pGBKT7-nDOC2 was transformed into the yeast AH109 and confirmed to be expressed.After the human foetus brain cDNA library had been transformed,the positive clones was screened by both nutrition defect medium and X-?-gal.The putative positive clones were sequenced and analyzed to get the DOC-2 interactive proteins.Furthermore,after the DOC-2 cDNA and TGF?Ⅲ receptor cDNA had been co-transfected into the human ovarian cancer cell line HO-8910 together,the interaction between DOC-2 and TGF?Ⅲ receptor was investigated by immunoprecipitation and Western blot.Results:21 putative positive clones were picked after being screened and sequenced.Three of them were identified as Homo sapiens partial mRNA for betaglycan(TBR Ⅲ gene),homo sapiens protocadherin gamma subfamily C3(PCDHGC3)and APLP1(amyloid beta precursor-like protein 1).The analysis by immunoprecipitation and Western blot showed that the interaction between DOC-2 and TGF?Ⅲ receptor could form protein complex.Conclusions:The three encoding proteins might participate in the DOC-2 signal pathway.DOC-2 might play as an essential role in the TGF?signal pathway by interacting with TGF?Ⅲ receptor.

Expression of doc-1 in Pregnant Uterus of the Mouse / 대한불임학회지

Uterine cells carry out proliferation and differentiation for preparation the embryonic implantation during pregnancy. Therefore regulation of the cell proliferation is an essential step for uterine preparation, but there is not much information about the proliferation related genes in pregnant uterus. To identify these implantation specific genes, a PCR-select cDNA subtraction method was employed and got a few genes. One of the identified genes is a novel gene encoding oral tumor suppressor doc-1. To detect the doc-1 expression on the pregnant uterus, dot blotting, RT-PCR, and in situ hybridization were employed. Dot blotting revealed that doc-1 mRNA expression increase after implantation. During normal pregnancy, doc-1 mRNA expression was detected as early as day 1 of pregnancy with RT-PCR. Its expression was increased about 15 times after embryonic implantation. doc-1 transcript was localized in luminal epithelial cells but it was very faint during preimplantation. After starting the implantation, it localized in the stromal cells; heightened expression of doc-1 correlates with intense stromal cell proliferation surrounding the implanting blastocyst on day 6 morning. However in the decidualized cells, the intensity of localized doc-1 mRNA was weak. From those results, it is revealed that doc-1 express at pregnant uterus of the mouse. In addition it is suggested that doc-1 is the gene regulating the proliferation of the luminal epithelial cells and stromal cells during early implantation and decidualization.

Expression of doc-1 in Pregnant Uterus of the Mouse / 대한불임학회지

Uterine cells carry out proliferation and differentiation for preparation the embryonic implantation during pregnancy. Therefore regulation of the cell proliferation is an essential step for uterine preparation, but there is not much information about the proliferation related genes in pregnant uterus. To identify these implantation specific genes, a PCR-select cDNA subtraction method was employed and got a few genes. One of the identified genes is a novel gene encoding oral tumor suppressor doc-1. To detect the doc-1 expression on the pregnant uterus, dot blotting, RT-PCR, and in situ hybridization were employed. Dot blotting revealed that doc-1 mRNA expression increase after implantation. During normal pregnancy, doc-1 mRNA expression was detected as early as day 1 of pregnancy with RT-PCR. Its expression was increased about 15 times after embryonic implantation. doc-1 transcript was localized in luminal epithelial cells but it was very faint during preimplantation. After starting the implantation, it localized in the stromal cells; heightened expression of doc-1 correlates with intense stromal cell proliferation surrounding the implanting blastocyst on day 6 morning. However in the decidualized cells, the intensity of localized doc-1 mRNA was weak. From those results, it is revealed that doc-1 express at pregnant uterus of the mouse. In addition it is suggested that doc-1 is the gene regulating the proliferation of the luminal epithelial cells and stromal cells during early implantation and decidualization.

Primary care physicians attitudes and practice for management of osteoporosis in Inchon city

No abstract available.