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https://www.readbyqxmd.com/read/28435317/systemic-alterations-in-plasma-proteins-from-women-with-chronic-widespread-pain-compared-to-healthy-controls-a-proteomic-study
#1
Karin Wåhlén, Patrik Olausson, Anders Carlsson, Nazdar Ghafouri, Björn Gerdle, Bijar Ghafouri
Chronic widespread pain (CWP) is a complex pain condition that is difficult to treat. The prevalence of CWP approximates ~10% of the general population, with higher prevalence in women. Lack of understanding of molecular mechanisms has been a challenge for diagnosis and treatment of chronic pain. The aim of this study was to explore the systemic protein changes in CWP compared to those in healthy controls (CON). By applying 2-dimensional gel electrophoresis, we analyzed the protein pattern of plasma samples from women with CWP (n=16) and healthy women (n=23)...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28435073/evaluation-of-a-rapid-detection-for-coxsackievirus-b3-using-one-step-reverse-transcription-loop-mediated-isothermal-amplification-rt-lamp
#2
A Monazah, M Zeinoddini, A R Saeeidinia
Coxsackievirus B3 (CVB3) is a member of the genus Enterovirus within the family Picornaviridae and is an important pathogen of viral myocarditis, which accounts for more than 50% viral myocarditis cases. VP1 is major capsid protein that this region has a low homology in both amino acid and nucleotide sequences among Enteroviruses. Therefore we have chosen this region for designed a set of RT-LAMP primers for CVB3 detection. For this the total RNA was extracted from 24-h post infected-HeLa cells with complete cytopathic effect (CPE), and applied to a one-step reverse transcription loop-mediated isothermal amplification reaction (RT-LAMP) using CVB3-specific primers...
April 20, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28434974/proteomic-approach-to-detect-changes-in-hippocampal-protein-levels-in-an-animal-model-of-type-2-diabetes
#3
Sung Min Nam, Dae Young Yoo, Hyun Jung Kwon, Jong Whi Kim, Hyo Young Jung, Dae Won Kim, Ho Jae Han, Moo-Ho Won, Je Kyung Seong, In Koo Hwang, Yeo Sung Yoon
In our previous study, we demonstrated that type 2 diabetes affects blood-brain barrier integrity and ultrastructural morphology in Zucker diabetic fatty (ZDF) rats at 40 weeks of age. In the present study, we investigated the possible candidates for diabetes-related proteins in the hippocampus of ZDF rats and their control littermates (Zucker lean control, ZLC), by using two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) followed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF)...
April 20, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28434323/identification-and-quantification-of-urinary-monoclonal-proteins-by-capillary-electrophoresis-in-al-amyloidosis
#4
Francesca Russo, Veronica Valentini, Marco Basset, Tiziana Bosoni, Paolo Milani, Giovanni Ferraro, Laura Pirolini, Andrea Foli, Francesca Lavatelli, Fabrizio Belvisi, Giorgio Consogno, Mario Nuvolone, Filomena Li Bergolis, Margherita Bozzola, Riccardo Albertini, Giovanni Palladini, Giampaolo Merlini
No abstract text is available yet for this article.
March 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28432777/preparative-isoelectric-focusing-in-a-cellulose-based-separation-medium
#5
Jiří Šalplachta, Marie Horká, Karel Šlais
An improved preparative method based on isoelectric focusing of analytes in a cellulose-based separation medium is described in this study. Cellulose is suspended in an aqueous solution of simple buffers, ethylene glycol, glycerol, nonionic surfactant, and colored pI markers. Water partially evaporates during focusing run and the separation takes place in an in-situ generated layer of cellulose, which has a gel-like appearance at the end of analysis. Final positions of analytes are indicated by the positions of zones of focused pI markers...
April 22, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28432557/proteomic-analysis-of-mitochondrial-proteins-in-the-guinea-pig-heart-following-long-term-normobaric-hyperoxia
#6
Lucia Lichardusova, Zuzana Tatarkova, Andrea Calkovska, Daniela Mokra, Ivan Engler, Peter Racay, Jan Lehotsky, Peter Kaplan
Normobaric hyperoxia is applied for the treatment of a wide variety of diseases and clinical conditions related to ischemia or hypoxia, but it can increase the risk of tissue damage and its efficiency is controversial. In the present study, we analyzed cardiac mitochondrial proteome derived from guinea pigs after 60 h exposure to 100% molecular oxygen (NBO) or O2 enriched with oxygen cation (NBO+). Two-dimensional gel electrophoresis followed by MALDI-TOF/TOF mass spectrometry identified twenty-two different proteins (among them ten nonmitochondrial) that were overexpressed in NBO and/or NBO+ group...
April 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28432276/identification-of-common-immunodominant-antigens-of-eimeria-tenella-eimeria-acervulina-and-eimeria-maxima-by-immunoproteomic-analysis
#7
Lianrui Liu, Xinmei Huang, Jianhua Liu, Wenyu Li, Yihong Ji, Di Tian, Lu Tian, Xinchao Yang, Lixin Xu, Ruofeng Yan, Xiangrui Li, Xiaokai Song
Clinical chicken coccidiosis is mostly caused by simultaneous infection of several Eimeria species, and host immunity against Eimeria is species-specific. It is urgent to identify common immunodominant antigen of Eimeria for developing multivalent anticoccidial vaccines. In this study, sporozoite proteins of Eimeria tenella, Eimeria acervulina and Eimeria maxima were analyzed by two-dimensional electrophoresis (2DE). Western bot analysis was performed on the yielded 2DE gel using antisera of E. tenella E. acervulina and E...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428141/temporal-impact-of-the-vascular-wilt-pathogen-verticillium-dahliae-on-tomato-root-proteome
#8
Katja Witzel, Anja Buhtz, Rita Grosch
The soil-borne fungus Verticillium dahliae is the causal agent of wilting disease and affects a wide range of plant species worldwide. Here, we report on the time-resolved analysis of the tomato root proteome in response to fungal colonization. Tomato (Solanum lycopersicum cv. Hildares) was inoculated with V. dahliae at the two-leaf stage and roots were harvested at 7, 14 and 21 days post inoculation (dpi). In order to identify proteins related to the fungal spread at the different time points, a subsequent proteome analysis by two-dimensional differential gel electrophoresis (2D-DIGE) was conducted on samples from three independent experiments...
April 17, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28428126/interactions-of-tetracyclines-with-ovalbumin-the-main-allergen-protein-from-egg-white-spectroscopic-and-electrophoretic-studies
#9
Maria Dayanne de A Dantas, Humberto de Araújo Tenório, Thiago Inácio B Lopes, Hugo Juarez V Pereira, Anita J Marsaioli, Isis M Figueiredo, Josué Carinhanha Caldas Santos
The interactions of tetracycline (TC), oxytetracycline (OTC) and chlortetracycline (CTC) with ovalbumin (OVA), the main allergen protein of egg white, were investigated by molecular spectroscopy and electrophoresis at three pH conditions (1.5, 4.6 and 7.4). Molecular and synchronous fluorescence, UV-vis spectroscopy, electrophoresis and (1)H NMR were used to study the interaction process. Tetracyclines interact with ovalbumin fluorescence by a static quenching mechanism with non-fluorescent complex formation changing the native protein structure...
April 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28427654/effect-of-high-intensity-ultrasound-on-the-technofunctional-properties-and-structure-of-jackfruit-artocarpus-heterophyllus-seed-protein-isolate
#10
J A Resendiz-Vazquez, J A Ulloa, J E Urías-Silvas, P U Bautista-Rosales, J C Ramírez-Ramírez, P Rosas-Ulloa, L González-Torres
The influence of high-intensity ultrasound (HIU) on the technofunctional properties and structure of jackfruit seed protein isolate (JSPI) was investigated. Protein solutions (10%, w/v) were sonicated for 15min at 20kHz to the following levels of power output: 200, 400, and 600W (pulse duration: on-time, 5s; off-time 1s). Compared with untreated JSPI, HIU at 200W and 400W improved the oil holding capacity (OHC) and emulsifying capacity (EC), but the emulsifying activity (EA) and emulsion stability (ES) increased at 400W and 600W...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427288/cigarette-smokers-develop-altered-erythrocyte-membrane-composition-an-investigation-unmasking-the-role-of-membrane-bound-integral-protein-glut-1
#11
Jyotirmoy Sikdar, Paromita Seal, Amartya Roy, Rajen Haldar
Erythrocytes in cigarette smokers are prone to oxidative damage. Here we sought to elucidate the facts behind modifications and possible defense system developed in erythrocyte of cigarette smokers. We observed significant increase in stomatocytes and spherocytes, and osmotic fragility of erythrocyte, along with reduced level of protein thiol and increased fluorescence anisotropy in isolated membrane. Denaturing gel electrophoresis indicated alterations in band 3, band 4.2 and band 4.5. Among those, Glut 1 (i...
April 20, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28425473/2d-dige-as-a-strategy-to-identify-serum-biomarkers-in-mexican-patients-with-type-2-diabetes-with-different-body-mass-index
#12
Erik E Gómez-Cardona, Eric E Hernández-Domínguez, Aída J Velarde-Salcedo, Alberto-Barrera- Pacheco, Agustín Diaz-Gois, Antonio De León-Rodríguez, Ana P Barba de la Rosa
Obesity and type 2 diabetes(T2D) are the most prevalent and serious metabolic diseases affecting people worldwide. However racial and ethnic disparities seems to be a risk factor for their development. Mexico has been named as one of the largest populations with the highest prevalence of diabetes and obesity. The aim of this study was to identify novel T2D-associated proteins in Mexican patients. Blood samples were collected from 62 Mexican patients with T2D and they were grouped according to their body mass index(BMI)...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423701/identification-of-protein-clusters-predictive-of-tumor-response-in-rectal-cancer-patients-receiving-neoadjuvant-chemo-radiotherapy
#13
Ombretta Repetto, Valli De Re, Antonino De Paoli, Claudio Belluco, Lara Alessandrini, Vincenzo Canzonieri, Renato Cannizzaro
Preoperative neoadjuvant chemoradiotherapy (nCRT) is the gold standard in locally advanced rectal cancer, only 10-30% of patients achieving benefits. Currently, there is a need of a reliable selection of markers for the identification of poor or non-responders prior to therapy. In this work, we compared protein profiles before therapy of patients differing in their responses to nCRT to find novel predictive markers of response to therapy. Patients were grouped into 3 groups according to their tumor regression grading (TRG) after surgery: 'TRG 1-2', good responders, 'TRG 3' and 'TRG 4', poor responders...
March 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422400/sequence-specific-covalent-capture-coupled-with-high-contrast-nanopore-detection-of-a-disease-derived-nucleic-acid-sequence
#14
Maryam Imani Nejad, Ruicheng Shi, Xinyue Zhang, Li-Qun Gu, Kent S Gates
Hybridization-based methods for the detection of nucleic acid sequences are important in research and medicine. Short probes provide sequence specificity, but may not provide a durable signal. Sequence-specific covalent cross-link formation can anchor probes to target DNA and also may provide an additional layer of target selectivity. Here we develop a new cross-linking reaction for the covalent capture of specific nucleic acid sequences. This process involves reaction of an abasic site in a probe strand with an adenine residue in the target strand and was used for the detection of a disease-relevant T→A mutation at position 1799 of the human BRAF kinase gene sequence...
April 19, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28420429/deptor-maintains-plasma-cell-differentiation-and-favorably-affects-prognosis-in-multiple-myeloma
#15
Dalia Quwaider, Luis A Corchete, Irena Misiewicz-Krzeminska, María E Sarasquete, José J Pérez, Patryk Krzeminski, Noemí Puig, María Victoria Mateos, Ramón García-Sanz, Ana B Herrero, Norma C Gutiérrez
BACKGROUND: The B cell maturation process involves multiple steps, which are controlled by relevant pathways and transcription factors. The understanding of the final stages of plasma cell (PC) differentiation could provide new insights for therapeutic strategies in multiple myeloma (MM). Here, we explore the role of DEPTOR, an mTOR inhibitor, in the terminal differentiation of myeloma cells, and its potential impact on patient survival. METHODS: The expression level of DEPTOR in MM cell lines and B cell populations was measured by real-time RT-PCR, and/or Western blot analysis...
April 18, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28417364/affinity-electrophoresis-for-analysis-of-catalytic-module-carbohydrate-interactions
#16
Darrell Cockburn, Casper Wilkens, Birte Svensson
Affinity electrophoresis has long been used to study the interaction between proteins and large soluble ligands. The technique has been found to have great utility for the examination of polysaccharide binding by proteins, particularly carbohydrate binding modules (CBMs). In recent years, carbohydrate surface binding sites of proteins mostly enzymes have also been investigated by this method. Here, we describe a protocol for identifying binding interactions between enzyme catalytic modules and a variety of carbohydrate ligands...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28417187/isolation-of-viable-but-non-culturable-bacteria-from-printing-and-dyeing-wastewater-bioreactor-based-on-resuscitation-promoting-factor
#17
Yi Jin, Guojuan Gan, Xiaoyun Yu, Dongdong Wu, Li Zhang, Na Yang, Jiadan Hu, Zhiheng Liu, Lixin Zhang, Huachang Hong, Xiaoqing Yan, Yan Liang, Linxian Ding, Yonglong Pan
Printing and dyeing wastewater with high content of organic matters, high colority, and poor biochemical performance is hard to be degraded. In this study, we isolated viable but non-culturable (VBNC) bacteria from printing and dyeing wastewater with the culture media contained resuscitation promoting factor (Rpf) protein secreted by Micrococcus luteus, counted the culturable cells number with the most probable number, sequenced 16S rRNA genes, and performed polymerase chain reaction-denaturing gradient gel electrophoresis...
April 17, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28416245/a-simple-and-efficient-method-for-crispr-cas9-induced-mutant-screening
#18
Yufeng Hua, Chun Wang, Jian Huang, Kejian Wang
The clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system provides a technological breakthrough in mutant generation. Several methods such as the polymerase chain reaction (PCR)/restriction enzyme (RE) assay, T7 endonuclease I (T7EI) assay, Surveyor nuclease assay, PAGE-based genotyping assay, and high-resolution melting (HRM) analysis-based assay have been developed for screening CRISPR/Cas9-induced mutants. However, these methods are time- and labour-intensive and may also be sequence-limited or require very expensive equipment...
April 4, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28411822/label-free-and-sensitive-assay-for-deoxyribonuclease-i-activity-based-on-enzymatically-polymerized-superlong-poly-thymine-hosted-fluorescent-copper-nanoparticles
#19
Lan Luo, Fengzhou Xu, Hui Shi, Xiaoxiao He, Taiping Qing, Yanli Lei, Jinlu Tang, Dinggeng He, Kemin Wang
Deoxyribonuclease I (DNase I) is an important physiological indicator and diagnostic biomarker, but traditional methods for assessing its activity are time-consuming, laborious, and usually radioactive. Herein, by effectively combining the special functions of DNase I and terminal deoxynucleotidyl transferase (TdT), a simple, green, cost-effective, label-free and ultrasensitive assay for DNase I activity has been constructed based on superlong poly(thymine)-hosted copper nanoparticles (poly T-CuNPs). In this strategy, a 3'-phosphorylated DNA primer is designed to block TdT polymerization...
July 1, 2017: Talanta
https://www.readbyqxmd.com/read/28411646/nano-armoring-of-enzymes-rational-design-of-polymer-wrapped-enzymes
#20
Kishore Raghupathi, Sankaran Thayumanavan
The formulation in which therapeutic proteins are administered plays a key role in retaining their biological activity. Enzyme wrapping, using synthetic polymers, is a strategy employed to provide enzymes with lower immunogenicity, longer circulation times, and better targeting capabilities. Protein-polymer complexation methods, involving covalent, noncovalent, and electrostatic interactions, that can provide means to develop formulations for retaining enzyme stability are discussed in this chapter. Amphiphilic self-cross-linkable polymer was used to encapsulate capsase-3 enzyme in the nanogel, while inverse emulsion polymerization method was used to entrap α-glucosidase enzyme in the nanogel...
2017: Methods in Enzymology
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