848 results on '"Christiane D"'
Search Results
102. A corpus-based construction of emotion verb scales
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Fellbaum, Christiane D., primary and Mathieu, Yvette Yannick, additional
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- 2014
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103. The Effects of Valgus Medial Opening Wedge High Tibial Osteotomy on Articular Cartilage Pressure of the Knee: A Biomechanical Study
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Agneskirchner, Jens Dominik, Hurschler, Christof, Wrann, Christiane D., and Lobenhoffer, Philipp
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- 2007
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104. Harmonizing WordNet and FrameNet
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Fellbaum, Christiane D., primary
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- 2010
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105. Profit and chemical analysis of Lavandula dentata L. and Rosmarinus officinalis L. essential oils and the influence of factors stressors
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Bruna Tomasi Müller, Karine Raquel Uhdich Kleibert, Cesar Oneide Sartori, Francine Lautenchleger, and Christiane de Fátima Colet
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essential oils ,Lavandula dentata ,linalool ,Pinene ,Rosmarinus officinalis ,yield. ,Biology (General) ,QH301-705.5 ,Microbiology ,QR1-502 - Abstract
The anatomical, physiological, and environmental changes of plants can alter the production of essential oil. The present study aims to characterize the profit and chemical constituents of Lavandula dentata L and Rosmarinus officinalis L. essential oils (EO), grown under conditions of stress by solar, water and soil radiation. A completely randomized design (CRD) was used in triplicate. The biomass analysis showed that in both plants, the best results were obtained when it was subjected to lighting, shading and 100% fertilization, but there was the lowest profit of EO. The portion that had the lowest biomass, showed the highest profit of EO. In the EO of Lavandula dentata L there were as major compounds: nerol, linalol and Myrcene, respectively, as the product with the lowest profit, eucalyptol stood out, followed by camphor and fenchone. The EO of Rosmarinus officinalis L with the lowest profit showed alpha-pinene as the major constituent, followed by camphor, 1.8 cineol, alpha-Terpinolene and linalol, and the EO with the highest profit was caryophyllene. The constituents of the EO showed different results when comparing the products obtained from the highest and lowest profit, both qualitatively and quantitatively, which shows that plants under different stress conditions affect the production of these secondary compounds, which may indicate differences in pharmacological actions.
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- 2024
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106. CALIDAD DE LOS SERVICIOS ODONTOLÓGICOS: ASOCIACIÓN CON CARACTERÍSTICAS SOCIODEMOGRÁFICAS Y DE AUTOPERCEPCIÓN
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Douglas Emanuel Maciel da Silva, Camila Casimiro Siciliani, Juline Manica Desordi, Francini de Oliveira Rodrigues, Christiane de Fátima Colet, and Adriane Cristina Bernat Kolankiewicz
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Calidad de la Atención de Salud ,Servicios de Salud Bucal ,Atención Primaria de Salud ,Percepción ,Odontología. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objetivo: asociar variables sociodemográficas con la autopercepción de los usuarios de la atención primaria de salud. Método: estudio transversal, con 222 usuarios de los servicios odontológicos de 15 unidades de atención primaria de un municipio de tamaño mediano de Rio Grande do Sul, Brasil. Se utilizaron cuestionarios con perfil sociodemográfico, la autopercepción y el Primary Care Assessment Tool Brasil salud bucal. Para comparaciones de las puntuaciones pruebas t-Student para grupos independientes y ANOVA (one way) – Post Hoc Sheffé. Resultados: usuarios con menor ingreso familiar (p=0,016) menor escolaridad (p=0,027) y que necesitaban hacer o cambiar la prótesis dental (p=0,020) obtuvieron asociación significativa en el atributo utilización de los servicios. En cuanto a la accesibilidad, las variables dolor de dientes (p=0,021) y satisfacción con la salud bucal (p
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- 2024
107. QUALITY OF DENTAL SERVICES: ASSOCIATION WITH SOCIODEMOGRAPHIC AND SELF-PERCEPTION CHARACTERISTICS
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Douglas Emanuel Maciel da Silva, Camila Casimiro Siciliani, Juline Manica Desordi, Francini de Oliveira Rodrigues, Christiane de Fátima Colet, and Adriane Cristina Bernat Kolankiewicz
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Quality of Health Care ,Dental Health Services ,Primary Health Care ,Perception ,Dentistry. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objective: To associate sociodemographic variables with the self-perception of primary health care users. Method: Cross-sectional study with 222 users of dental services from 15 primary care units in a medium-sized city in Rio Grande do Sul, Brazil. Questionnaires with sociodemographic profile, self-perception, and the Primary Care Assessment Tool Brasil oral health were used. For comparisons of t-Student test scores for independent groups and ANOVA (one way) – Post Hoc Sheffé. Results: Users with lower family income (p=0.016), lower education (p=0.027), and who needed to make or replace dental prostheses (p=0.020) showed a significant association in the attribute of service utilization. Regarding accessibility, the variables toothache (p=0.021) and satisfaction with oral health (p
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- 2024
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108. QUALIDADE DOS SERVIÇOS ODONTOLÓGICOS: ASSOCIAÇÃO COM CARACTERÍSTICAS SOCIODEMOGRÁFICAS E DE AUTOPERCEPÇÃO
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Douglas Emanuel Maciel da Silva, Camila Casimiro Siciliani, Juline Manica Desordi, Francini de Oliveira Rodrigues, Christiane de Fátima Colet, and Adriane Cristina Bernat Kolankiewicz
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Qualidade da Assistência à Saúde ,Serviços de Saúde Bucal ,Atenção Primária à Saúde ,Percepção ,Odontologia. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objetivo: associar variáveis sociodemográficas com a autopercepção de usuários da atenção primária à saúde. Método: estudo transversal, com 222 usuários dos serviços odontológicos de 15 unidades de atenção primária de município de médio porte do Rio Grande do Sul, Brasil. Foram utilizados questionários com perfil sociodemográfico, a autopercepção e o Primary Care Assessment Tool Brasil saúde bucal. Para comparações dos escores testes t-Student para grupos independentes e ANOVA (one way) – Post Hoc Sheffé. Resultados: usuários com menor renda familiar (p=0,016) menor escolaridade (p=0,027) e que precisavam fazer ou trocar a prótese dentária (p=0,020) obtiveram associação significativa no atributo utilização dos serviços. Quanto à acessibilidade, as variáveis dor de dente (p=0,021) e satisfação com a saúde bucal (p
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- 2024
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109. Aesthetic Radiofrequency Associated with Supplementation is Safe and Reduces Oxidative Stress in Women: Randomized, and Double-Blind Clinical Trial
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Greissi Tatieli Franke Tremêa MS, Karine Raquel Uhdich Kleibert MS, Lenara Schalanski Krause BSc, Ana Paula Weber Fell BSc, Anais Regina Scapini BSc, Keli Wilchen Marschall BSc, Cristiano Sartori Baiotto MS, Martha Héllen Tremêa da Silva BSc, José Antonio Gonzalez da Silva PhD, and Christiane de Fátima Colet PhD
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Other systems of medicine ,RZ201-999 ,Homeopathy ,RX1-681 - Abstract
The objective were to evaluate the effects of supplementation of standardized dry extract of Rosmarinus officinalis (RO) and the application of aesthetic radiofrequency on the oxidative stress markers catalase (CAT), superoxide dismutase (SOD), non-protein thiols (NP-SH), and thiobarbituric acid reactive species (TBARS) and the biochemical markers triglycerides, total cholesterol, high density lipoprotein (HDL) cholesterol, glutamic-oxaloacetic transaminase (TGO/AST), pyruvic-glutamic transaminase (TGP/ALT), gamma glutamyl transpeptidase (gamma-GT), and creatinine. This study included 32 women received the aesthetic therapy to reduce localized fat. They were divided into the control group (n = 8) receiving placebo capsules and the intervention group (n = 24) subdivided into Group A, B, and C, each with eight members receiving supplementation with 100, 500, and 1000 mg/day of standardized dry extract of RO, respectively. The Universal Trial Number (UTN) – U1111-1274-6255. Supplementation with RO (500 mg/day) demonstrated a reduction in oxidative stress (quantified with through a significant increase in NP-SH and a reduction in SOD and CAT enzymes). The radiofrequency aesthetic treatment did not promote an increase in oxidative stress; however, it caused significant changes in total cholesterol, HDL cholesterol, and creatinine. RO is a plant with antioxidant effects and its oral consumption is safe in selected women subjects in hepatic and renal markers.
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- 2024
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110. 'We need to publish in English: Brazilian reserarcher's voices regarding tensions in academic literacy practices
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Prof.a. Adriana Fischer Fischer, Klara Marcondes Masai, and Christiane Donahue
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Scientific Publication in English ,Academic Literacy ,Academic Writing ,Philology. Linguistics ,P1-1091 - Abstract
Impact and visibility are important boosters for global scientific publishing in English regarding some possible tensions. We interviewed four Brazilian medical researchers from five well-ranked universities in Brazil through semi-structured interviews. We used linguistic ethnography theorizing as a methodology to analyze the social relations around texts, based on literacy studies. The aim of this article is to discuss Brazilian medical authors’ experienced tensions regarding publishing internationally and writing in English. Results showed that writing in English to publish internationally is a literacy practice embedded in power relationships and legitimation. We identified three main tensions: 1) a low number of Brazilian English speakers which results in poor access to written English skills; 2) handling relations of power shaping discourses and standards; and 3) issues tied to academic group support and academic literacy.
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- 2024
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111. Musculoskeletal pain in healthcare professionals working in COVID-19 Intensive Care Units: multicenter and cross-sectional study
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Daiana Zambonato, Lenara Schalanski Krause, Marcilene Marques de Freitas Tamborini, Flávia Alessandra da Silva Räder, Juliana Maria Fachinetto, and Christiane de Fatima Colet
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nursing ,occupational health ,work activity ,Medicine - Abstract
BACKGROUND AND OBJECTIVES: During the COVID-19 pandemic, health professionals have experienced a work overload that may be associated with increased pain intensity. The aim of this study was to analyze the frequency and intensity of musculoskeletal pain in the different anatomical regions reported by health professionals who worked in Intensive Care Units (ICU) during the pandemic and to investigate associations between clinical variables. METHODS: This is a cross-sectional, analytical, quantitative and multicenter study carried out in six ICU between July 2021 and February 2022. The Nordic Questionnaire of Musculoskeletal Symptoms (QNSO) was used for data collection, as well as a questionnaire prepared by the researchers on sociodemographic, work and clinical data, and the visual numeric scale (VNS) for pain assessment. Analyses were carried out using descriptive and inferential statistics. RESULTS: The sample consisted of 205 health professionals. With regard to pain intensity, according to the visual analog scale (VAS), an average of 3.76 was observed. The analysis of the association between the variables indicated a greater intensity of pain in females, with a higher frequency of mild and moderate pain, age over 40, in the professional categories of nursing technicians and doctors. The presence of severe pain was associated with poor general health and shorter time in professional practice. CONCLUSION: Most of the professionals reported pain of varying intensity and in different anatomical regions, the most frequently cited being the upper back and neck. Musculoskeletal disorders are directly related to work activity, age, gender and lack of leisure time.
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- 2024
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112. Occurrence of Aurora A Positive Multipolar Mitoses In Distinct Molecular Classes of Colorectal Carcinomas and Effect of Aurora A Inhibition
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Herz, Corinna, Schlürmann, Fabienne, Batarello, Daniela, Fichter, Christiane D., Schöpflin, Anja, Münch, Claudia, Hauschke, Dieter, Werner, Martin, and Lassmann, Silke
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- 2012
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113. New insights into adipocyte-specific leptin gene expression
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Wrann, Christiane D. and Rosen, Evan D.
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- 2012
114. Harmonizing WordNet and FrameNet
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Fellbaum, Christiane D., Hutchison, David, Kanade, Takeo, Kittler, Josef, Kleinberg, Jon M., Mattern, Friedemann, Mitchell, John C., Naor, Moni, Nierstrasz, Oscar, Pandu Rangan, C., Steffen, Bernhard, Sudan, Madhu, Terzopoulos, Demetri, Tygar, Doug, Vardi, Moshe Y., Weikum, Gerhard, Goebel, Randy, Siekmann, Jörg, Wahlster, Wolfgang, Loftsson, Hrafn, editor, Rögnvaldsson, Eiríkur, editor, and Helgadóttir, Sigrún, editor
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- 2010
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115. The bii4africa dataset of faunal and floral population intactness estimates across Africa’s major land uses
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Hayley S. Clements, Emmanuel Do Linh San, Gareth Hempson, Birthe Linden, Bryan Maritz, Ara Monadjem, Chevonne Reynolds, Frances Siebert, Nicola Stevens, Reinette Biggs, Alta De Vos, Ryan Blanchard, Matthew Child, Karen J. Esler, Maike Hamann, Ty Loft, Belinda Reyers, Odirilwe Selomane, Andrew L. Skowno, Tshegofatso Tshoke, Diarrassouba Abdoulaye, Thierry Aebischer, Jesús Aguirre-Gutiérrez, Graham J. Alexander, Abdullahi H. Ali, David G. Allan, Esther E. Amoako, Samuel Angedakin, Edward Aruna, Nico L. Avenant, Gabriel Badjedjea, Adama Bakayoko, Abraham Bamba-kaya, Michael F. Bates, Paul J. J. Bates, Steven R. Belmain, Emily Bennitt, James Bradley, Chris A. Brewster, Michael B. Brown, Michelle Brown, Josef Bryja, Thomas M. Butynski, Filipe Carvalho, Alan Channing, Colin A. Chapman, Callan Cohen, Marina Cords, Jennifer D. Cramer, Nadine Cronk, Pamela M. K. Cunneyworth, Fredrik Dalerum, Emmanuel Danquah, Harriet T. Davies-Mostert, Andrew D. de Blocq, Yvonne A. De Jong, Terrence C. Demos, Christiane Denys, Chabi A. M. S. Djagoun, Thomas M. Doherty-Bone, Marine Drouilly, Johan T. du Toit, David A. Ehlers Smith, Yvette C. Ehlers Smith, Seth J. Eiseb, Peter J. Fashing, Adam W. Ferguson, José M. Fernández-García, Manfred Finckh, Claude Fischer, Edson Gandiwa, Philippe Gaubert, Jerome Y. Gaugris, Dalton J. Gibbs, Jason S. Gilchrist, Jose M. Gil-Sánchez, Anthony N. Githitho, Peter S. Goodman, Laurent Granjon, J. Paul Grobler, Bonginkosi C. Gumbi, Vaclav Gvozdik, James Harvey, Morgan Hauptfleisch, Firas Hayder, Emmanuel M. Hema, Marna Herbst, Mariano Houngbédji, Brian J. Huntley, Rainer Hutterer, Samuel T. Ivande, Kate Jackson, Gregory F. M. Jongsma, Javier Juste, Blaise Kadjo, Prince K. Kaleme, Edwin Kamugisha, Beth A. Kaplin, Humphrey N. Kato, Christian Kiffner, Duncan M. Kimuyu, Robert M. Kityo, N’goran G. Kouamé, Marcel Kouete T, Aliza le Roux, Alan T. K. Lee, Mervyn C. Lötter, Anne Mette Lykke, Duncan N. MacFadyen, Gacheru P. Macharia, Zimkitha J. K. Madikiza, Themb’alilahlwa A. M. Mahlaba, David Mallon, Mnqobi L. Mamba, Claude Mande, Rob A. Marchant, Robin A. Maritz, Wanda Markotter, Trevor McIntyre, John Measey, Addisu Mekonnen, Paulina Meller, Haemish I. Melville, Kevin Z. Mganga, Michael G. L. Mills, Liaan Minnie, Alain Didier Missoup, Abubakr Mohammad, Nancy N. Moinde, Bakwo Fils E. Moise, Pedro Monterroso, Jennifer F. Moore, Simon Musila, Sedjro Gilles A. Nago, Maganizo W. Namoto, Fatimata Niang, Violaine Nicolas, Jerry B. Nkenku, Evans E. Nkrumah, Gonwouo L. Nono, Mulavwa M. Norbert, Katarzyna Nowak, Benneth C. Obitte, Arnold D. Okoni-Williams, Jonathan Onongo, M. Justin O’Riain, Samuel T. Osinubi, Daniel M. Parker, Francesca Parrini, Mike J. S. Peel, Johannes Penner, Darren W. Pietersen, Andrew J. Plumptre, Damian W. Ponsonby, Stefan Porembski, R. John Power, Frans G. T. Radloff, Ramugondo V. Rambau, Tharmalingam Ramesh, Leigh R. Richards, Mark-Oliver Rödel, Dominic P. Rollinson, Francesco Rovero, Mostafa A. Saleh, Ute Schmiedel, M. Corrie Schoeman, Paul Scholte, Thomas L. Serfass, Julie Teresa Shapiro, Sidney Shema, Stefan J. Siebert, Jasper A. Slingsby, Alexander Sliwa, Hanneline A. Smit-Robinson, Etotepe A. Sogbohossou, Michael J. Somers, Stephen Spawls, Jarryd P. Streicher, Lourens Swanepoel, Iroro Tanshi, Peter J. Taylor, William A. Taylor, Mariska te Beest, Paul T. Telfer, Dave I. Thompson, Elie Tobi, Krystal A. Tolley, Andrew A. Turner, Wayne Twine, Victor Van Cakenberghe, Frederik Van de Perre, Helga van der Merwe, Chris J. G. van Niekerk, Pieter C. V. van Wyk, Jan A. Venter, Luke Verburgt, Geraldine Veron, Susanne Vetter, Maria S. Vorontsova, Thomas C. Wagner, Paul W. Webala, Natalie Weber, Sina M. Weier, Paula A. White, Melissa A. Whitecross, Benjamin J. Wigley, Frank J. Willems, Christiaan W. Winterbach, and Galena M. Woodhouse
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Science - Abstract
Abstract Sub-Saharan Africa is under-represented in global biodiversity datasets, particularly regarding the impact of land use on species’ population abundances. Drawing on recent advances in expert elicitation to ensure data consistency, 200 experts were convened using a modified-Delphi process to estimate ‘intactness scores’: the remaining proportion of an ‘intact’ reference population of a species group in a particular land use, on a scale from 0 (no remaining individuals) to 1 (same abundance as the reference) and, in rare cases, to 2 (populations that thrive in human-modified landscapes). The resulting bii4africa dataset contains intactness scores representing terrestrial vertebrates (tetrapods: ±5,400 amphibians, reptiles, birds, mammals) and vascular plants (±45,000 forbs, graminoids, trees, shrubs) in sub-Saharan Africa across the region’s major land uses (urban, cropland, rangeland, plantation, protected, etc.) and intensities (e.g., large-scale vs smallholder cropland). This dataset was co-produced as part of the Biodiversity Intactness Index for Africa Project. Additional uses include assessing ecosystem condition; rectifying geographic/taxonomic biases in global biodiversity indicators and maps; and informing the Red List of Ecosystems.
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- 2024
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116. Diffusion tensor-MRI detects exercise-induced neuroplasticity in the hippocampal microstructure in mice
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Islam, Mohammad R., primary, Luo, Renhao, additional, Valaris, Sophia, additional, Haley, Erin B., additional, Takase, Hajime, additional, Chen, Yinching Iris, additional, Dickerson, Bradford C., additional, Schon, Karin, additional, Arai, Ken, additional, Nguyen, Christopher T., additional, and Wrann, Christiane D., additional
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- 2020
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117. Fibronectin rescues aberrant phenotype of endothelial cells lacking either CCM1, CCM2 or CCM3
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Schwefel, Konrad, primary, Spiegler, Stefanie, additional, Kirchmaier, Bettina C., additional, Dellweg, Patricia K. E., additional, Much, Christiane D., additional, Pané‐Farré, Jan, additional, Strom, Tim M., additional, Riedel, Katharina, additional, Felbor, Ute, additional, and Rath, Matthias, additional
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- 2020
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118. A new model system identifies epidermal growth factor receptor-human epidermal growth factor receptor 2 (HER2) and HER2-human epidermal growth factor receptor 3 heterodimers as potent inducers of oesophageal epithelial cell invasion
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Silke Lassmann, Thomas Reinheckel, Achim Buck, Camilla Maria Przypadlo, Bianca Riedel, Axel Walch, Martin Werner, Christiane D. Fichter, Nicola Herbener, Luisa Schäfer, and Hiroshi Nakagawa
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0301 basic medicine ,biology ,Chemistry ,Cellular differentiation ,Cell ,Cell migration ,medicine.disease_cause ,Pathology and Forensic Medicine ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,ErbB ,030220 oncology & carcinogenesis ,medicine ,Cancer research ,biology.protein ,Epidermal growth factor receptor ,skin and connective tissue diseases ,Carcinogenesis ,neoplasms ,Protein kinase B ,Squamous epithelial cell - Abstract
Oesophageal squamous cell carcinomas and oesophageal adenocarcinomas display distinct patterns of ErbB expression and dimers. The functional effects of specific ErbB homo- or heterodimers on oesophageal (cancer) cell behaviour, particularly invasion of early carcinogenesis remains unknown. Here, a new cellular model system for controlled activation of EGFR or HER2 and EGFR/HER2 or HER2/HER3 homo- and heterodimers was studied in non-neoplastic squamous oesophageal epithelial Het-1A cells. EGFR, HER2 and HER3 intracellular domains (ICDs) were fused to dimerization domains (DmrA / DmrA and DmrC), and transduced into Het-1A cells lacking ErbB expression. Dimerization of EGFR, HER2 or EGFR/HER2, HER2/HER3 ICDs was induced by synthetic ligands (A/A or A/C dimerizers). This was accompanied by phosphorylation of the respective EGFR, HER2 and HER3 ICDs and activation of distinct down-stream signalling pathways, such as PLCγ1, Akt, STAT and Src family kinases. Phenotypically, ErbB homo- and heterodimers caused cell rounding and non-apoptotic blebbing in EGFR/HER2 and HER2/HER3 heterodimer cells. In a Transwell assay, cell migration velocity was elevated in HER2-dimer as compared to empty vector cells. In addition, HER2-dimer cells showed in increased cell invasion, reaching significance for induced HER2/HER3 heterodimers (p=0.015). Importantly, in three-dimensional organotypic cultures, empty vector cells grew as a superficial cell layer, resembling oesophageal squamous epithelium. In contrast, induced HER2-dimer cells (HER2 homodimers) were highly invasive into the matrix and formed cell clusters. This was associated with partial loss of CK7 (when HER2 homodimers were modelled) and p63 (when EGFR/HER2 heterodimers were modelled), which suggests a change or loss of squamous cell differentiation. Controlled activation of specific EGFR, HER2 and HER3 homo- and heterodimers caused oesophageal squamous epithelial cell migration and/or invasion, especially in a three dimensional microenvironment, thereby functionally identifying ErbB homo- and heterodimers as important drivers of oesophageal carcinogenesis.
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- 2017
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119. CRISPR/Cas9-mediated Generation of Human Endothelial Cell Knockout Models of CCM Disease
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Konrad Schwefel, Matthias Rath, Ute Felbor, Christiane D. Much, and Stefanie Spiegler
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0301 basic medicine ,Trans-activating crRNA ,Cell type ,Cas9 ,Biology ,Umbilical vein ,Cell biology ,Endothelial stem cell ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Genome editing ,embryonic structures ,CRISPR ,Human umbilical vein endothelial cell ,030217 neurology & neurosurgery - Abstract
The CRISPR/Cas9 system is a versatile tool that enables targeted genome editing in various cell types, including hard-to-transfect endothelial cells. The required crRNA, tracrRNA, and Cas9 protein have mostly been introduced into endothelial cells by viral transduction or plasmid transfection so far. We here describe an effective lipofection-based delivery of pre-complexed crRNA:tracrRNA:Cas9 ribonucleoproteins into human umbilical vein endothelial cells (HUVEC) and immortalized HUVEC (CI-huVEC). Complete inactivation of either CCM1, CCM2, or CCM3 in endothelial cells mimics the situation in cavernous lesions of CCM patients and thus represents a suitable model for future studies.
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- 2020
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120. Fibronectin rescues aberrant phenotype of endothelial cells lacking either CCM1, CCM2 or CCM3
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Konrad Schwefel, Patricia K. E. Dellweg, Ute Felbor, Katharina Riedel, Tim M. Strom, Bettina C. Kirchmaier, Stefanie Spiegler, Matthias Rath, Christiane D. Much, and Jan Pané-Farré
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0301 basic medicine ,Stress fiber ,Matrix (biology) ,Fibril ,Biochemistry ,Actin cytoskeleton organization ,Extracellular matrix ,03 medical and health sciences ,0302 clinical medicine ,Proto-Oncogene Proteins ,Genetics ,Humans ,CRISPR ,KRIT1 Protein ,Molecular Biology ,Cells, Cultured ,Actin ,biology ,Chemistry ,Membrane Proteins ,Fibronectins ,Cell biology ,ddc ,Fibronectin ,Phenotype ,030104 developmental biology ,biology.protein ,Cerebral Cavernous Malformations ,Crispr ,Cas9 Genome Editing ,Extracellular Matrix ,Endothelium, Vascular ,CRISPR-Cas Systems ,Apoptosis Regulatory Proteins ,Carrier Proteins ,030217 neurology & neurosurgery ,Biotechnology - Abstract
Loss-of-function variants in CCM1/KRIT1, CCM2, and CCM3/PDCD10 are associated with autosomal dominant cerebral cavernous malformations (CCMs). CRISPR/Cas9-mediated CCM3 inactivation in human endothelial cells (ECs) has been shown to induce profound defects in cell-cell interaction as well as actin cytoskeleton organization. We here show that CCM3 inactivation impairs fibronectin expression and consequently leads to reduced fibers in the extracellular matrix. Despite the complexity and high molecular weight of fibronectin fibrils, our in vitro model allowed us to reveal that fibronectin supplementation restored aberrant spheroid formation as well as altered EC morphology, and suppressed actin stress fiber formation. Yet, fibronectin replacement neither enhanced the stability of tube-like structures nor inhibited the survival advantage of CCM3(-/-) ECs. Importantly, CRISPR/Cas9-mediated introduction of biallelic loss-of-function variants into either CCM1 or CCM2 demonstrated that the impaired production of a functional fibronectin matrix is a common feature of CCM1-, CCM2-, and CCM3-deficient ECs.
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- 2019
121. Precise CCM1 gene correction and inactivation in patient‐derived endothelial cells: Modeling Knudson's two‐hit hypothesis in vitro
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Spiegler, Stefanie, Rath, Matthias, Much, Christiane D., Sendtner, Barbara S., and Felbor, Ute
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Adult ,Gene Editing ,Hemangioma, Cavernous, Central Nervous System ,lcsh:QH426-470 ,Method ,Endothelial Cells ,Genetic Therapy ,cerebral cavernous malformation ,Proof of Concept Study ,lcsh:Genetics ,Humans ,blood outgrowth endothelial cells ,mutation correction ,CRISPR-Cas Systems ,CCM1 ,KRIT1 Protein ,CRISPR/Cas9 ,Cells, Cultured - Abstract
Background The CRISPR/Cas9 system has opened new perspectives to study the molecular basis of cerebral cavernous malformations (CCMs) in personalized disease models. However, precise genome editing in endothelial and other hard‐to‐transfect cells remains challenging. Methods In a proof‐of‐principle study, we first isolated blood outgrowth endothelial cells (BOECs) from a CCM1 mutation carrier with multiple CCMs. In a CRISPR/Cas9 gene correction approach, a high‐fidelity Cas9 variant was then transfected into patient‐derived BOECs using a ribonucleoprotein complex and a single‐strand DNA oligonucleotide. In addition, patient‐specific CCM1 knockout clones were expanded after CRISPR/Cas9 gene inactivation. Results Deep sequencing demonstrated correction of the mutant allele in nearly 33% of all cells whereas no CRISPR/Cas9‐induced mutations in predicted off‐target loci were identified. Corrected BOECs could be cultured in cell mixtures but demonstrated impaired clonal survival. In contrast, CCM1‐deficient BOECs displayed increased resistance to stress‐induced apoptotic cell death and could be clonally expanded to high passages. When cultured together, CCM1‐deficient BOECs largely replaced corrected as well as heterozygous BOECs. Conclusion We here demonstrate that a non‐viral CRISPR/Cas9 approach can not only be used for gene knockout but also for precise gene correction in hard‐to‐transfect endothelial cells (ECs). Comparing patient‐derived isogenic CCM1+/+, CCM1+/−, and CCM1−/− ECs, we show that the inactivation of the second allele results in clonal evolution of ECs lacking CCM1 which likely reflects the initiation phase of CCM genesis.
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- 2019
122. Irisin Mediates Effects on Bone via αV Integrin Receptors
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Yukiko Kitase, Hyeonwoo Kim, Roland Baron, Patrick R. Griffin, Bruce M. Spiegelman, Lynda F. Bonewald, Mark P. Jedrychowski, Kenichi Nagano, Mary L. Bouxsein, Timothy S. Strutzenberg, Christiane D. Wrann, and Clifford J. Rosen
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Chemistry ,αv integrins ,Genetics ,Receptor ,Molecular Biology ,Biochemistry ,Biotechnology ,Cell biology - Published
- 2019
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123. A gene on chromosome 11q23 coding for a putative glucose-6-phosphate translocase is mutated in glycogen-storage disease types Ib and Ic
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Veiga-da-Cunha, Maria, Gerin, Isabelle, Chen, Yuan-Tsong, Barsy, Thierry de, Lonlay, Pascale de, Dionisi-Vici, Carlo, Fenske, Christiane D., Lee, Philip J., Leonard, James V., Maire, Irene, McConkie-Rosell, Allyn, Schweitzer, Susanne, Vikkula, Miikka, and Van Schaftingen, Emile
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Human chromosome abnormalities -- Research ,Glycogenosis -- Research ,Mutation (Biology) -- Research ,Biological sciences - Abstract
Studies show that two specific mutations result in approximately 40% of alleles for glycogen-storage diseases. Through cloning a cDNA that encoded a putative glucose-6-phosphate translocase, researchers determined the mutations that resulted in disease alleles. These findings could indicate that glucose-6-phosphate and inorganic phosphate are transported by the same transporter in microsomes.
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- 1998
124. Tributyltin hydride-mediated free-radical cyclization of allene-tethered oxime ethers and hydrazones
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Marco-Contelles, Jose, Balme, Genevieve, Bouyssi, Didier, Destabel, Christine, Henriet-Bernard, Christiane D., Grimaldi, J., and Hatem, Jacques M.
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Ring formation (Chemistry) -- Analysis ,Ethers -- Analysis ,Organic compounds -- Synthesis ,Oxo compounds -- Analysis ,Biological sciences ,Chemistry - Abstract
A novel method for the synthesis of (vinylstannyl)cyclopentylamine derivatives was developed based on the tributyltin hydride-mediated cycloisomerization of allene-tethered oxime ethers or hydrazones. The synthetic strategy involves the site-directed intermolecular attack of the tributyltin radical at the allene moiety of allene-tethered oxime ethers. The reactions also involved the acid-promoted destannylation of the resulting vinyltin intermediates to produce unsaturated cyclopentylamine derivatives.
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- 1997
125. Multicenter Phase I/II Study of Cetuximab With Paclitaxel and Carboplatin in Untreated Patients With Stage IV Non–Small-Cell Lung Cancer
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Thienelt, Christiane D., Bunn, Paul A., Jr, Hanna, Nasser, Rosenberg, Arthur, Needle, Michael N., Long, Michael E., Gustafson, Daniel L., and Kelly, Karen
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- 2005
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126. Experimental Onco-Immunology Revisited
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Pasqualini, Christiane D., Ruggiero, Raul A., Bustuoabad, Oscar D., Nepomnaschy, Irene, and Piazzon, Isabel
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- 2005
127. Anemia
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Thienelt, Christiane D. and Klein, Catherine E.
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- 2003
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128. Aesthetic radiofrequency combined with oral supplementation with Rosmarinus officinalis changes anthropometric measures in Women: Randomized clinical trial
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Greissi Tatieli Franke Tremêa, Karine Raquel Uhdich Kleibert, Lenara Schalanski Krause, Ana Paula Weber Fell, Anais Regina Scapini, Keli Wilchen Marschall, Cristiano Sartori Baiotto, Martha Héllen Tremêa da Silva, José Antonio Gonzalez da Silva, and Christiane de Fátima Colet
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radiofrequency therapy ,rosmarinus ,anthropometry ,skinfold thickness ,abdominal circunference ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Introduction: Aesthetic radiofrequency treatment is a therapeutic method focused on reducing adiposity, of reducing body weight, concomitant with the use of aesthetic techniques using herbal medicines and medicinal plants. One of the plants still little explored by health professionals is Rosmarinus officinalis. Objective: To evaluate the impact of aesthetic radiofrequency treatment, combined with the use of standardized dry extract R. officinalis, on anthropometric variables in healthy women. Materials and Methods: Thirty-two healthy women were subjected to radiofrequency cosmetic treatment for 4 weeks. These women were divided into Control Group (CG) and Intervention Group (IG). In CG (n=8), placebo capsules were included in the diet. The intervention group was divided into: Group A (n=8) 100 mg day-1; Group B (n=8) 500 mg day-1; Group C (n=8): 1,000 mg day-1. Anthropometric data regarding abdominal skinfolds, abdominal circumferences, and bioimpedance were collected before and after the interventions. Results: The aesthetic treatment with radiofrequency did not change the parameters evaluated. Significant changes were observed for the use of R. officinalis, through the significant increase in skinfolds, for all doses evaluated, as well as reduction in abdominal circumference with the use of 500 mg. Conclusion: Aesthetic radiofrequency treatment did not result in significant changes in anthropometric variables. Oral supplementation with R. officinalis extract can increase abdominal skinfolds in a linear, dose-dependent way. In addition, oral supplementation can significantly change abdominal circumferences.
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- 2023
129. Ultra-sensitive CTC-based liquid biopsy for pancreatic cancer enabled by large blood volume analysis
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Nikolas H. Stoecklein, Georg Fluegen, Rosa Guglielmi, Rui P.L. Neves, Thilo Hackert, Emrullah Birgin, Stefan A. Cieslik, Monica Sudarsanam, Christiane Driemel, Guus van Dalum, André Franken, Dieter Niederacher, Hans Neubauer, Tanja Fehm, Jutta M. Rox, Petra Böhme, Lena Häberle, Wolfgang Göring, Irene Esposito, Stefan A. Topp, Frank A.W. Coumans, Jürgen Weitz, Wolfram T. Knoefel, Johannes C. Fischer, Ulrich Bork, and Nuh N. Rahbari
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Pancreatic ductal adenocarcinoma ,PDAC ,Circulating tumor cells ,CTCs ,High-blood volume analysis ,Liquid biopsy ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract The limited sensitivity of circulating tumor cell (CTC) detection in pancreatic adenocarcinoma (PDAC) stems from their extremely low concentration in the whole circulating blood, necessitating enhanced detection methodologies. This study sought to amplify assay-sensitivity by employing diagnostic leukapheresis (DLA) to screen large blood volumes. Sixty patients were subjected to DLA, with a median processed blood volume of ~ 2.8 L and approximately 5% of the resulting DLA-product analyzed using CellSearch (CS). Notably, DLA significantly increased CS-CTC detection to 44% in M0-patients and 74% in M1-patients, yielding a 60-fold increase in CS-CTC enumeration. DLA also provided sufficient CS-CTCs for genomic profiling, thereby delivering additional genomic information compared to tissue biopsy samples. DLA CS-CTCs exhibited a pronounced negative prognostic impact on overall survival (OS), evidenced by a reduction in OS from 28.6 to 8.5 months (univariate: p = 0.002; multivariable: p = 0.043). Additionally, a marked enhancement in sensitivity was achieved (by around 3-4-times) compared to peripheral blood (PB) samples, with positive predictive values for OS being preserved at around 90%. Prognostic relevance of CS-CTCs in PDAC was further validated in PB-samples from 228 PDAC patients, consolidating the established association between CTC-presence and reduced OS (8.5 vs. 19.0 months, p
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- 2023
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130. The uncertain role of substandard and falsified medicines in the emergence and spread of antimicrobial resistance
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Sean Cavany, Stella Nanyonga, Cathrin Hauk, Cherry Lim, Joel Tarning, Benn Sartorius, Christiane Dolecek, Céline Caillet, Paul N. Newton, and Ben S. Cooper
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Science - Abstract
Abstract Approximately 10% of antimicrobials used by humans in low- and middle-income countries are estimated to be substandard or falsified. In addition to their negative impact on morbidity and mortality, they may also be important drivers of antimicrobial resistance. Despite such concerns, our understanding of this relationship remains rudimentary. Substandard and falsified medicines have the potential to either increase or decrease levels of resistance, and here we discuss a range of mechanisms that could drive these changes. Understanding these effects and their relative importance will require an improved understanding of how different drug exposures affect the emergence and spread of resistance and of how the percentage of active pharmaceutical ingredients in substandard and falsified medicines is temporally and spatially distributed.
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- 2023
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131. Bioavailability Assessment of Metals from the Coastal Sediments of Tropical Estuaries Based on Acid-Volatile Sulfide and Simultaneously Extracted Metals
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Ana Paula de Castro Rodrigues, Matheus Marinho Pereira, Aline Campos, Tássia Lins da Silva Quaresma, Rodrigo Pova, Thatianne Castro Vieira, Rút Amélia Diaz, Manuel Moreira, Denise Araripe, Christiane do Nascimento Monte, and Wilson Machado
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AVS ,ecological risk ,adverse effect index ,Guanabara Bay ,Sepetiba Bay ,Environmental sciences ,GE1-350 ,Harbors and coast protective works. Coastal engineering. Lighthouses ,TC203-380 ,Geography (General) ,G1-922 - Abstract
Bioavailability assessment is important for evaluating the risks to the local biota, and the combined use of several ecological risk indices in eutrophic environments allows the best analysis of the local reality for decision-making. The relationship between acid volatile sulfide (AVS) concentrations and simultaneously extracted metals (SEM) allows us to infer the metal holding capacity of sediment, with the objective of evaluating the potential bioavailability of trace metals (Cd, Cu, Ni, Pb, and Zn) using ecological risk indices, such as the ΣSEM/AVS model and Adverse Effect Index (AEI), in surface sediments from Guanabara Bay and Sepetiba Bay, Brazil. AVS was determined using a colorimetric method and SEM with ICP-OES. In general, almost all sampling in Sepetiba Bay showed ΣSEM/AVS ratio values above 1. However, all results for the ΣSEM/AVS ratio found for the Guanabara Bay sediments were
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- 2023
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132. A retrospective investigation of the population structure and geospatial distribution of Salmonella Paratyphi A in Kathmandu, Nepal.
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Elli Mylona, Duy Pham Thanh, Jacqueline A Keane, Sabina Dongol, Buddha Basnyat, Christiane Dolecek, Phat Voong Vinh, Nga Tran Vu Thieu, To Nguyen Thi Nguyen, Abhilasha Karkey, and Stephen Baker
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Arctic medicine. Tropical medicine ,RC955-962 ,Public aspects of medicine ,RA1-1270 - Abstract
Salmonella Paratyphi A, one of the major etiologic agents of enteric fever, has increased in prevalence in recent decades in certain endemic regions in comparison to S. Typhi, the most prevalent cause of enteric fever. Despite this increase, data on the prevalence and molecular epidemiology of S. Paratyphi A remain generally scarce. Here, we analysed the whole genome sequences of 216 S. Paratyphi A isolates originating from Kathmandu, Nepal between 2005 and 2014, of which 200 were from patients with acute enteric fever and 16 from the gallbladder of people with suspected chronic carriage. By exploiting the recently developed genotyping framework for S. Paratyphi A (Paratype), we identified several genotypes circulating in Kathmandu. Notably, we observed an unusual clonal expansion of genotype 2.4.3 over a four-year period that spread geographically and systematically replaced other genotypes. This rapid genotype replacement is hypothesised to have been driven by both reduced susceptibility to fluoroquinolones and genetic changes to virulence factors, such as functional and structural genes encoding the type 3 secretion systems. Finally, we show that person-to-person is likely the most common mode of transmission and chronic carriers seem to play a limited role in maintaining disease circulation.
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- 2024
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133. Resenha do CANCLINI, Néstor Garcia. Cidadãos substituídos por algoritmos. São Paulo: EdUSP, 2021, 212p.
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Breno Rodrigo de Oliveira Alencar and Christiane do Socorro Ramos dos Santos
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Resenha ,Canclini ,Cidadania ,Algoritmos ,redes sociais ,Philology. Linguistics ,P1-1091 ,French literature - Italian literature - Spanish literature - Portuguese literature ,PQ1-3999 - Abstract
Esta resenha aborda a obra "Cidadãos Substituídos por Algoritmos" de Néstor García Canclini, cujo objetivo é demonstrar que, no estado atual, o uso de redes sociais em massa, com consciência e engajamento político, funciona como uma nova forma de exercício da cidadania. Ao longo do livro, o autor dialoga sobre a maneira pela qual a mobilização pelas redes já propiciaram importantes embates revolucionários neste século. Dessa forma, a obra apresenta uma perspectiva bastante positiva do uso da tecnologia, sendo ela capaz, inclusive, de formatar novas formas de participação social que estão além da mobilização partidária.
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- 2024
134. What are the barriers towards cervical cancer screening for vulnerable women? A qualitative comparative analysis of stakeholder perspectives in seven European countries
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Partha Basu, Martin McKee, Adriana Băban, Luke Vale, Marc Bardou, Ana Fernandes, Sadie Bell, Margarida Teixeira, Rebecca Moore, Nuno Lunet, David Ritchie, Romeu Mendes, Eric Lucas, Paolo Giorgi Rossi, Rosa Legood, Berit Andersen, Diana Taut, Keitly Mensah, João Firmino-Machado, Mariana Amorim, Mette Tranberg, Laura Bonvicini, Li Sun, Anneli Uusküla, Pia Kirkegaard, Paola Mantellini, Ines Baia, Lise Rochaix, Camilla Fiorina, Luca Ghirotto, Anna Tisler, Wendy Yared, Firmino Machado, Rikke Buus Bøje, Raquel Rico Berrocal, Noemi Auzzi, Nicoleta Jiboc, Kerli Reintamm, Raya Michaylova, Yulia Panayotova, Tatyana Kotzeva, Anna Foss, Rachel Greenley, Letizia Bartolini, Giusy Iorio, Cláudia Gouvinhas, Florian Nicula, Alexandra Tolnai, Vanessa Moore, Isabel Mosquera Metcalfe, Violette Delisle, Irina Todorova, Raya Mihaylova, Helena Ros Comesana, Meritxel Mallafré-Larrosa, Ginevra Papi, Arianna Khatchadourian, and Christiane Dascher-Nade
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Medicine - Abstract
Objectives The aim of this study was to map and compare stakeholders’ perceptions of barriers towards cervical cancer screening for vulnerable women in seven European countries.Design In Collaborative User Boards, stakeholders were invited to participate to identify barriers towards participation in cervical cancer screening.Setting The study is nested in the European Union-funded project CBIG-SCREEN which aims to tackle inequity in cervical cancer screening for vulnerable women (www.cbig-screen.eu). Data collection took place in Bulgaria, Denmark, Estonia, France, Italy, Portugal and Romania.Participants Participants represented micro-level stakeholders covering representatives of users, that is, vulnerable women, meso-level stakeholders covering healthcare professionals and social workers, and macro-level stakeholders covering programme managers and decision-makers.Methods Across the seven countries, 25 meetings in Collaborative User Boards with a duration of 2 hours took place between October 2021 and June 2022. The meetings were video recorded or audio recorded, transcribed and translated into English for a qualitative framework analysis.Results 120 participants took part in the Collaborative User Boards. Context-specific barriers were related to different healthcare systems and characteristics of vulnerable populations. In Romania and Bulgaria, the lack of a continuous screening effort and lack of ways to identify eligible women were identified as barriers for all women rather than being specific for women in vulnerable situations. The participants in Denmark, Estonia, France, Italy and Portugal identified providers’ lack of cultural and social sensitivity towards vulnerable women as barriers. In all countries, vulnerable women’s fear, shame and lack of priority to preventive healthcare were identified as psychological barriers.Conclusion The study provides an overview of stakeholders’ perceived barriers towards vulnerable women’s cervical cancer screening participation in seven European countries. The organisation of healthcare systems and the maturity of screening programmes differ between countries, while vulnerable women’s psychological barriers had several similarities.
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- 2024
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135. DOR MUSCULOESQUELÉTICA EM PROFISSIONAIS DA ATENÇÃO PRIMÁRIA DURANTE A PANDEMIA COVID-19: ESTUDO DE MÉTODOS MISTOS
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Marcilene Marques de Freitas Tamborini, Christiane de Fátima Colet, Alexa Pupiara Flores Coelho Centenaro, Eliane Nogueira de Souza Souto, Alana Thais Gisch Andres, Carmen Cristiane Schultz, and José Antonio Gonzales da Silva
- Subjects
Dor Musculoesquelética ,Pessoal de Saúde ,COVID-19 ,Saúde Ocupacional ,Atenção Primária à Saúde. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objetivo: analisar a dor musculoesquelética em profissionais de saúde na atenção primária e sua vivência durante a pandemia da COVID-19. Método: estudo de métodos mistos, realizado no sul do Brasil, entre junho de 2021 e fevereiro de 2022. Amostra de 50 participantes, utilizando os questionários relacionados à dor e aos sintomas osteomusculares e entrevistas com roteiros pré-elaborados. Análise de dados com estatísticas descritivas, inferenciais e Análise Temática de Conteúdo. Resultados: a maior parte dos participantes foram da área da Enfermagem, com 40 horas semanais. Regiões mais acometidas: ombros, parte superior das costas e pescoço, variando de dor moderada (42%) e intensa (10%). Diferenças estatísticas significativas relacionadas à dor e medo de contrair a COVID-19, entre aqueles com problemas prévios de saúde e enfermeiros. Conclusão: tendo em vista que a dor pode estar associada às condições de trabalho, torna-se essencial a identificação dos fatores de risco, evitando maiores agravos para a saúde do trabalhador.
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- 2024
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136. MUSCULOSKELETAL PAIN IN PRIMARY CARE PROFESSIONALS DURING THE COVID-19 PANDEMIC: MIXED METHODS STUDY
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Marcilene Marques de Freitas Tamborini, Christiane de Fátima Colet, Alexa Pupiara Flores Coelho Centenaro, Eliane Nogueira de Souza Souto, Alana Thais Gisch Andres, Carmen Cristiane Schultz, and José Antonio Gonzales da Silva
- Subjects
Musculoskeletal Pain ,Health Personnel ,COVID-19 ,Occupational Health ,Primary Health Care. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objective: To analyze musculoskeletal pain in primary care health professionals and their experience during the COVID-19 pandemic. Method: A mixed-methods study carried out in southern Brazil between June 2021 and February 2022. A sample of 50 participants, using questionnaires related to pain and musculoskeletal symptoms and interviews with pre-prepared scripts. Data analysis using descriptive and inferential statistics and Thematic Content Analysis. Results: Most of the nursing sector participants worked 40 hours a week. The most affected areas are the shoulders, upper back, and neck, ranging from moderate (42%) to severe (10%) pain. Statistically significant differences related to pain and fear of contracting COVID-19 between those with previous health problems and nurses. Conclusion: Given that pain can be associated with working conditions, it is essential to identify risk factors to avoid further damage to workers' health.
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- 2024
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137. DOLOR MUSCULOESQUELÉTICO EN PROFESIONALES DE ATENCIÓN PRIMARIA DURANTE LA PANDEMIA DE COVID-19: ESTUDIO DE MÉTODOS MIXTOS
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Marcilene Marques de Freitas Tamborini, Christiane de Fátima Colet, Alexa Pupiara Flores Coelho Centenaro, Eliane Nogueira de Souza Souto, Alana Thais Gisch Andres, Carmen Cristiane Schultz, and José Antonio Gonzales da Silva
- Subjects
Dolor musculoesquelético ,Personal de Salud ,COVID-19 ,Salud laboral ,Atención primaria de salud. ,Nursing ,RT1-120 ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Objetivo: Analizar el dolor musculoesquelético en los profesionales de la salud de atención primaria y sus experiencias durante la pandemia de COVID-19. Método: estudio de métodos mixtos realizado en el sur de Brasil entre junio de 2021 y febrero de 2022. Una muestra de 50 participantes, mediante cuestionarios relacionados con el dolor y los síntomas musculoesqueléticos y entrevistas con guiones preparados de antemano. Análisis de datos mediante estadísticas descriptivas e inferenciales y análisis temático de contenido. Resultados: La mayoría de las participantes pertenecían al sector de la enfermería y trabajaban 40 horas semanales. Regiones más afectadas: hombros, parte superior de la espalda y cuello, con dolores que van de moderados (42%) a intensos (10%). Diferencias estadísticamente significativas relacionadas con el dolor y el miedo a contraer COVID-19 entre las personas con problemas de salud previos y las enfermeras. Conclusión: Dado que el dolor puede estar asociado a las condiciones de trabajo, es esencial identificar los factores de riesgo y evitar mayores daños a la salud de los trabajadores.
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- 2024
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138. Treadmill Exercise Suppresses Cognitive Decline and Increases White Matter Oligodendrocyte Precursor Cells in a Mouse Model of Prolonged Cerebral Hypoperfusion
- Author
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Mohammad Rashedul Islam, Ryo Ohtomo, Hajime Takase, Gen Hamanaka, Gaku Ohtomo, Keita Kinoshita, Josephine Lok, Atsushi Iwata, Hiroshi Katsuki, Eng H. Lo, Ken Arai, Kazuo Washida, and Christiane D. Wrann
- Subjects
0301 basic medicine ,Male ,medicine.medical_specialty ,Cellular pathology ,Neurology ,Population ,Morris water navigation task ,Article ,White matter ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Physical Conditioning, Animal ,Medicine ,Animals ,Cognitive Dysfunction ,Cognitive decline ,education ,Oligodendrocyte Precursor Cells ,education.field_of_study ,business.industry ,General Neuroscience ,Dementia, Vascular ,Cognition ,White Matter ,Cognitive test ,Mice, Inbred C57BL ,Disease Models, Animal ,030104 developmental biology ,medicine.anatomical_structure ,Cardiology ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,business ,030217 neurology & neurosurgery - Abstract
Clinical evidence suggests that patients with subcortical ischemic vascular dementia (SIVD) perform better at cognitive tests after exercise. However, the underlying mechanism for this effect is largely unknown. Here, we examined how treadmill exercise changes the cognitive function and white matter cellular pathology in a mouse model of SIVD. Prolonged cerebral hypoperfusion was induced in 2-month-old male C57BL/6J mice by bilateral common carotid artery stenosis. A week later, the mice were randomly divided into a group that received 6-week treadmill exercise and a sedentary group for observation. In multiple behavioral tests (Y-maze, novel object recognition, and Morris water maze tests), the treadmill exercise training was shown to ameliorate cognitive decline in the hypoperfused SIVD mice. In addition, immunohistological analyses confirmed that there was a larger population of oligodendrocyte precursor cells in the subventricular zone of exercised versus sedentary mice. Although further investigations are needed to confirm a causal link between these findings, our study establishes a model and cellular foundation for investigating the mechanisms through which exercise preserves cognitive function in SIVD.
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- 2019
139. Are the Neuroprotective Effects of Exercise Training Systemically Mediated?
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Miia Kivipelto, Jon Storm-Mathisen, José Bianco Nascimento Moreira, Nathan R. Scrimgeour, Christiane D. Wrann, Atefe R Tari, Linda H. Bergersen, Cecilie S. Norevik, Geir Selbæk, Ulrik Wisløff, Asgeir Kobro-Flatmoen, and Imperial College Healthcare NHS Trust- BRC Funding
- Subjects
ENTORHINAL CORTEX NEURONS ,Cardiac & Cardiovascular Systems ,Translational research ,Exercise-induced blood-borne factors ,Disease ,030204 cardiovascular system & hematology ,Neuroprotection ,03 medical and health sciences ,0302 clinical medicine ,Cognition ,Neurotrophic factors ,SYNAPTIC PLASTICITY ,GROWTH-FACTOR-I ,Medicine ,Dementia ,Humans ,030212 general & internal medicine ,Nerve Growth Factors ,Cardiorespiratory fitness ,VASCULAR RISK-FACTORS ,Exercise ,1102 Cardiorespiratory Medicine and Haematology ,Science & Technology ,CATHEPSIN-B ,business.industry ,Physical activity ,Neurodegeneration ,Alzheimer's disease ,medicine.disease ,COGNITIVE IMPAIRMENT ,ALZHEIMERS-DISEASE ,Endurance Training ,PHYSICAL-ACTIVITY ,Cardiovascular System & Hematology ,Cardiovascular System & Cardiology ,AEROBIC EXERCISE ,Cardiology and Cardiovascular Medicine ,business ,Neuroscience ,Life Sciences & Biomedicine - Abstract
To date there is no cure available for dementia, and the field calls for novel therapeutic targets. A rapidly growing body of literature suggests that regular endurance training and high cardiorespiratory fitness attenuate cognitive impairment and reduce dementia risk. Such benefits have recently been linked to systemic neurotrophic factors induced by exercise. These circulating biomolecules may cross the blood-brain barrier and potentially protect against neurodegenerative disorders such as Alzheimer's disease. Identifying exercise-induced systemic neurotrophic factors with beneficial effects on the brain may lead to novel molecular targets for maintaining cognitive function and preventing neurodegeneration. Here we review the recent literature on potential systemic mediators of neuroprotection induced by exercise. We focus on the body of translational research in the field, integrating knowledge from the molecular level, animal models, clinical and epidemiological studies. Taken together, the current literature provides initial evidence that exercise-induced, blood-borne biomolecules, such as BDNF and FNDC5/irisin, may be powerful agents mediating the benefits of exercise on cognitive function and may form the basis for new therapeutic strategies to better prevent and treat dementia. © 2019 The Author. Published by Elsevier Inc. This is a n open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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- 2019
140. Irisin Mediates Effects on Bone and Fat via αV Integrin Receptors
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Patrick R. Griffin, Alexander M. Roche, Clifford J. Rosen, Lynda F. Bonewald, Bruce M. Spiegelman, Kenichi Nagano, Daniel J. Brooks, Mary L. Bouxsein, Kaitlyn K. Gerber, Yukiko Kitase, Mark P. Jedrychowski, Laura Mattheis, Phuong T. Le, Joshua Chou, Virginia-Jeni A. Parkman, Scott J. Novick, Chuan Zhou, Hua Tu, Christiane D. Wrann, Hyeonwoo Kim, Wei Chen, Sara Vidoni, Timothy S. Strutzenberg, Roland Baron, and Bruce D. Pascal
- Subjects
0301 basic medicine ,medicine.medical_specialty ,Osteolysis ,Integrin ,Cell ,Adipose tissue ,Biology ,Osteocytes ,Bone resorption ,General Biochemistry, Genetics and Molecular Biology ,Article ,Bone remodeling ,03 medical and health sciences ,chemistry.chemical_compound ,Mice ,0302 clinical medicine ,Internal medicine ,Cell Line, Tumor ,medicine ,Adipocytes ,Animals ,Humans ,Receptor ,αv integrins ,Integrin alphaV ,medicine.disease ,FNDC5 ,Cell biology ,Fibronectins ,030104 developmental biology ,Endocrinology ,medicine.anatomical_structure ,HEK293 Cells ,chemistry ,Adipose Tissue ,Osteocyte ,biology.protein ,Sclerostin ,Female ,Bone Remodeling ,Function (biology) ,030217 neurology & neurosurgery ,Developmental Biology - Abstract
© 2018 Irisin is secreted by muscle, increases with exercise, and mediates certain favorable effects of physical activity. In particular, irisin has been shown to have beneficial effects in adipose tissues, brain, and bone. However, the skeletal response to exercise is less clear, and the receptor for irisin has not been identified. Here we show that irisin binds to proteins of the αV class of integrins, and biophysical studies identify interacting surfaces between irisin and αV/β5 integrin. Chemical inhibition of the αV integrins blocks signaling and function by irisin in osteocytes and fat cells. Irisin increases both osteocytic survival and production of sclerostin, a local modulator of bone remodeling. Genetic ablation of FNDC5 (or irisin) completely blocks osteocytic osteolysis induced by ovariectomy, preventing bone loss and supporting an important role of irisin in skeletal remodeling. Identification of the irisin receptor should greatly facilitate our understanding of irisin's function in exercise and human health. Irisin, through its integrin receptor, promotes skeletal remodeling with implications for stemming bone loss.
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- 2018
141. Biallelic CCM3 mutations cause a clonogenic survival advantage and endothelial cell stiffening
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Matthias Rath, Konrad Schwefel, Ute Felbor, Stefanie Spiegler, Christiane D. Much, Uwe Völker, Oliver Otto, Sabine Ameling, and Robin A. Pilz
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0301 basic medicine ,CRISPR/Cas9 genome editing ,Cell ,Apoptosis ,Biology ,cerebral cavernous malformations ,Clonal Evolution ,03 medical and health sciences ,0302 clinical medicine ,Genome editing ,Proto-Oncogene Proteins ,microRNA ,medicine ,Human Umbilical Vein Endothelial Cells ,CRISPR ,Humans ,real time deformability cytometry ,Alleles ,CCM3 ,Ribonucleoprotein ,miRNA ,Trans-activating crRNA ,Neovascularization, Pathologic ,Cas9 ,Gene Expression Profiling ,High-Throughput Nucleotide Sequencing ,Membrane Proteins ,Cell Biology ,Original Articles ,endothelial cells ,Cell biology ,Endothelial stem cell ,MicroRNAs ,030104 developmental biology ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Mutation ,Molecular Medicine ,Original Article ,Endothelium, Vascular ,CRISPR-Cas Systems ,Apoptosis Regulatory Proteins - Abstract
CCM3, originally described as PDCD10, regulates blood‐brain barrier integrity and vascular maturation in vivo. CCM3 loss‐of‐function variants predispose to cerebral cavernous malformations (CCM). Using CRISPR/Cas9 genome editing, we here present a model which mimics complete CCM3 inactivation in cavernous endothelial cells (ECs) of heterozygous mutation carriers. Notably, we established a viral‐ and plasmid‐free crRNA:tracrRNA:Cas9 ribonucleoprotein approach to introduce homozygous or compound heterozygous loss‐of‐function CCM3 variants into human ECs and studied the molecular and functional effects of long‐term CCM3 inactivation. Induction of apoptosis, sprouting, migration, network and spheroid formation were significantly impaired upon prolonged CCM3 deficiency. Real‐time deformability cytometry demonstrated that loss of CCM3 induces profound changes in cell morphology and mechanics: CCM3‐deficient ECs have an increased cell area and elastic modulus. Small RNA profiling disclosed that CCM3 modulates the expression of miRNAs that are associated with endothelial ageing. In conclusion, the use of CRISPR/Cas9 genome editing provides new insight into the consequences of long‐term CCM3 inactivation in human ECs and supports the hypothesis that clonal expansion of CCM3‐deficient dysfunctional ECs contributes to CCM formation.
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- 2018
142. Novel Pathogenic Variants in a Cassette Exon of CCM2 in Patients With Cerebral Cavernous Malformations
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Much, Christiane D., primary, Schwefel, Konrad, additional, Skowronek, Dariush, additional, Shoubash, Loay, additional, von Podewils, Felix, additional, Elbracht, Miriam, additional, Spiegler, Stefanie, additional, Kurth, Ingo, additional, Flöel, Agnes, additional, Schroeder, Henry W. S., additional, Felbor, Ute, additional, and Rath, Matthias, additional
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- 2019
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143. Treadmill Exercise Suppresses Cognitive Decline and Increases White Matter Oligodendrocyte Precursor Cells in a Mouse Model of Prolonged Cerebral Hypoperfusion
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Ohtomo, Ryo, primary, Kinoshita, Keita, additional, Ohtomo, Gaku, additional, Takase, Hajime, additional, Hamanaka, Gen, additional, Washida, Kazuo, additional, Islam, Mohammad Rashedul, additional, Wrann, Christiane D., additional, Katsuki, Hiroshi, additional, Iwata, Atsushi, additional, Lok, Josephine, additional, Lo, Eng H., additional, and Arai, Ken, additional
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- 2019
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144. Irisin Mediates Effects on Bone and Fat via αV Integrin Receptors
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Kim, Hyeonwoo, primary, Wrann, Christiane D., additional, Jedrychowski, Mark, additional, Vidoni, Sara, additional, Kitase, Yukiko, additional, Nagano, Kenichi, additional, Zhou, Chenhe, additional, Chou, Joshua, additional, Parkman, Virginia-Jeni A., additional, Novick, Scott J., additional, Strutzenberg, Timothy S., additional, Pascal, Bruce D., additional, Le, Phuong T., additional, Brooks, Daniel J., additional, Roche, Alexander M., additional, Gerber, Kaitlyn K., additional, Mattheis, Laura, additional, Chen, Wenjing, additional, Tu, Hua, additional, Bouxsein, Mary L., additional, Griffin, Patrick R., additional, Baron, Roland, additional, Rosen, Clifford J., additional, Bonewald, Lynda F., additional, and Spiegelman, Bruce M., additional
- Published
- 2019
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145. Irisin Mediates Effects on Bone via αV Integrin Receptors
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Kim, Hyeonwoo, primary, Wrann, Christiane D., additional, Jedrychowski, Mark, additional, Kitase, Yukiko, additional, Nagano, Kenichi, additional, Strutzenberg, Timothy S., additional, Bouxsein, Mary L., additional, Griffin, Patrick R., additional, Baron, Roland, additional, Rosen, Clifford J., additional, Bonewald, Lynda F., additional, and Spiegelman, Bruce M., additional
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- 2019
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146. Localisation of the gene for glycogen storage disease type 1c by homozygosity mapping to 11q
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Fenske, Christiane D, Jeffery, Steve, Weber, James L, Houlston, Richard S, Leonard, James V, and Lee, Philip J
- Published
- 1998
147. Direct inference and control of genetic population structure from RNA sequencing data
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Muhamad Fachrul, Abhilasha Karkey, Mila Shakya, Louise M. Judd, Taylor Harshegyi, Kar Seng Sim, Susan Tonks, Sabina Dongol, Rajendra Shrestha, Agus Salim, STRATAA study group, Stephen Baker, Andrew J. Pollard, Chiea Chuen Khor, Christiane Dolecek, Buddha Basnyat, Sarah J. Dunstan, Kathryn E. Holt, and Michael Inouye
- Subjects
Biology (General) ,QH301-705.5 - Abstract
Abstract RNAseq data can be used to infer genetic variants, yet its use for estimating genetic population structure remains underexplored. Here, we construct a freely available computational tool (RGStraP) to estimate RNAseq-based genetic principal components (RG-PCs) and assess whether RG-PCs can be used to control for population structure in gene expression analyses. Using whole blood samples from understudied Nepalese populations and the Geuvadis study, we show that RG-PCs had comparable results to paired array-based genotypes, with high genotype concordance and high correlations of genetic principal components, capturing subpopulations within the dataset. In differential gene expression analysis, we found that inclusion of RG-PCs as covariates reduced test statistic inflation. Our paper demonstrates that genetic population structure can be directly inferred and controlled for using RNAseq data, thus facilitating improved retrospective and future analyses of transcriptomic data.
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- 2023
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148. Subcellular localization of EGFR in esophageal carcinoma cell lines
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Silke Lassmann, Martin Werner, Christiane D. Fichter, and Lucas Spohn
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0301 basic medicine ,Pathology ,medicine.medical_specialty ,Cell ,Cell Biology ,Esophageal cancer ,Biology ,medicine.disease ,Subcellular localization ,Biochemistry ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,ErbB ,Cell culture ,Cytoplasm ,030220 oncology & carcinogenesis ,Cancer cell ,medicine ,Cancer research ,Signal transduction ,Molecular Biology ,Research Article - Abstract
Background: The EGF receptor is a therapeutic target in cancer cells, whereby mutations of EGFR and/or signalling members act as predictive markers. EGFR however also exhibits dynamic changes of subcellular localization, leading to STAT5 complex formation, nuclear translocation and induction of Aurora-A expression in squamous cancer cells. We previously described high EGFR and Aurora-A expression in esophageal cancer cells. Here, we investigated subcellular localization of EGFR and STAT5 in esophageal cancer cells. Results: Quantitative immunofluorescence analyses of four esophageal cancer cell lines reflecting esophageal squamous cell carcinomas (ESCC) and esophageal adenocarcinomas (EAC) revealed that the subcellular localization of EGFR was shifted from a membranous to cytoplasmic localization upon EGF-stimulation in OE21 (ESCC) cells. Thereby, EGFR in part co-localized with E-Cadherin. In parallel, phosphorylated STAT5-Tyr694 appeared to increase in the nucleus and to decrease at the cell membrane. In three additional cell lines, EGFR was only marginally (Kyse-410/ESCC; OE19/EAC) and weakly (OE33, EAC) detectable at the cell membrane. Partial co-localization of EGFR and E-Cadherin occurred in OE33 cells. Post EGF-stimulation, EGFR was detected in the cytoplasm, resembling endosomal compartments. Furthermore, OE19 and OE33 exhibited nuclear STAT5-Tyr694 phosphorylation upon EGF-stimulation. None of the four cell lines showed nuclear EGFR expression and localization. Conclusion: In contrast to other (squamous) cancer cells, activation of EGFR in esophageal squamous cancer cells does not result in nuclear translocation of EGFR. Still, the subcellular localization of EGFR may influence STAT5-associated signaling pathways in esophageal cancer cells and hence possibly also the responses to ErbB, respective EGFR-targeted therapies.
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- 2015
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149. Detection and Quantitation of Circulating Human Irisin by Tandem Mass Spectrometry
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Mark P. Jedrychowski, Kaitlyn K. Gerber, Steven P. Gygi, Christiane D. Wrann, Joao A. Paulo, K. Sreekumaran Nair, Matthew M. Robinson, Bruce M. Spiegelman, and John Szpyt
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Adult ,Male ,medicine.medical_specialty ,Physiology ,Cardiovascular health ,Molecular Sequence Data ,Health benefits ,Tandem mass spectrometry ,Interval training ,Body Mass Index ,Young Adult ,Tandem Mass Spectrometry ,Internal medicine ,medicine ,Humans ,Amino Acid Sequence ,Exercise ,Molecular Biology ,Chromatography, High Pressure Liquid ,biology ,Chemistry ,Cell Biology ,FNDC5 ,Fibronectins ,3. Good health ,Endocrinology ,Biochemistry ,Isotope Labeling ,biology.protein ,Electrophoresis, Polyacrylamide Gel ,Antibody ,Peptides - Abstract
SummaryExercise provides many health benefits, including improved metabolism, cardiovascular health, and cognition. We have shown previously that FNDC5, a type I transmembrane protein, and its circulating form, irisin, convey some of these benefits in mice. However, recent reports questioned the existence of circulating human irisin both because human FNDC5 has a non-canonical ATA translation start and because of claims that many human irisin antibodies used in commercial ELISA kits lack required specificity. In this paper we have identified and quantitated human irisin in plasma using mass spectrometry with control peptides enriched with heavy stable isotopes as internal standards. This precise state-of-the-art method shows that human irisin is mainly translated from its non-canonical start codon and circulates at ∼3.6 ng/ml in sedentary individuals; this level is increased to ∼4.3 ng/ml in individuals undergoing aerobic interval training. These data unequivocally demonstrate that human irisin exists, circulates, and is regulated by exercise.
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- 2015
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150. Decreased NK cell functions in obesity can be reactivated by fat mass reduction
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Gabriele I. Stangl, Corinna Brandsch, Ina Bähr, Marco Spielau, Christiane D. Wrann, Heike Kielstein, Karl-Stefan Delank, Janine Jahn, and Tobias Berreis
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medicine.medical_specialty ,Nutrition and Dietetics ,medicine.diagnostic_test ,business.industry ,Endocrinology, Diabetes and Metabolism ,Leptin ,Medicine (miscellaneous) ,Adipokine ,Stimulation ,medicine.disease ,Peripheral blood mononuclear cell ,Obesity ,Flow cytometry ,Endocrinology ,Weight loss ,Internal medicine ,Medicine ,Interferon gamma ,medicine.symptom ,business ,medicine.drug - Abstract
Objective Natural killer (NK) cells are the first defense against malignant cells, and their functions are severely impaired in individuals with obesity. However, it is not known whether functions can be re-activated after weight loss. The alterations of NK cell functions after fat mass reduction were investigated. Methods Thirty-two healthy adults with obesity were divided into control and experimental groups. Participants of the experimental group performed a 3-month program of exercise training and nutrition. Anthropometric, physiological, and metabolic parameters and plasma adipocytokines were determined. Peripheral blood mononuclear cells were analyzed by means of flow cytometry and Western blot assay for various NK cell-specific functional parameters and leptin signaling components. NK cell-mediated cytotoxicity assay with leptin stimulation was performed. Results Male participants significantly decreased their body fat mass (P
- Published
- 2015
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