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Proteomics. Clinical Applications

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https://www.readbyqxmd.com/read/28508575/upregulation-of-inflammatory-mediators-in-the-ventricular-zone-after-cortical-stroke
#1
Adrianna N Gunton, Juan C Sanchez-Arias, Esther O Carmona-Wagner, Leigh E Wicki-Stordeur, Leigh Anne Swayne
PURPOSE: After cortical stroke, neural precursor cells (NPCs) in the distal ventricular zone (VZ) proliferate more rapidly and migrate towards the injured cortex. While evidence suggests this can enhance stroke recovery, the underlying molecular mechanisms initiating the response are poorly understood. Here we identified changes in protein expression in the ipsilateral VZ early (4 hours) after stroke to gain insight into the initial mechanisms involved in NPC activation post-stroke. EXPERIMENTAL DESIGN: Four hours after photothrombotic stroke (or sham surgery control) in the sensorimotor cortex, adult mice (10 stroke, 10 sham) were subjected to cardiac perfusion with PBS, and ipsilateral and contralateral VZ tissue was microdissected...
May 15, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28493612/identification-of-extracellular-matrix-protein-1-as-a-potential-plasma-biomarker-of-escc-by-proteomic-analysis-using-itraq-and-2d-lc-ms-ms
#2
Xianghu Wang, Yuan Peng, Ming Xie, Zhikui Gao, Lihong Yin, Yuepu Pu, Ran Liu
PURPOSE: This study was aimed to conduct a proteomics profiling analysis on plasma obtained from ESCC patients with the goal of identifying appropriate plasma protein biomarkers in the progression of ESCC. EXPERIMENTAL DESIGN: Plasma from 28 ESCC patients and 28 Healthy controls (HC) were analyzed by iTRAQ combined with 2D-LC-MS/MS. ProteinPilot software was used to identify the differentially expressed plasma proteins in ESCC compared to HC. Western blot was performed to verify the expression of selected proteins in 37 independent ESCC patients and 37 HC...
May 11, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28488344/nipple-aspirate-fluid-a-liquid-biopsy-for-diagnosing-breast-health
#3
Sadr-Ul Shaheed, Catherine Tait, Kyriacos Kyriacou, Joanne Mullarkey, Wayne Burrill, Laurence H Patterson, Richard Linforth, Mohamed Salhab, Chris Sutton
PURPOSE: Nipple secretions are protein-rich and a potential source of breast cancer biomarkers for breast cancer screening. Previous studies of specific proteins have shown limited correlation with clinicopatholigical features. Our aim, in this pilot study, was to investigate the intra- and inter-patient protein composition of nipple secretions and the implications for their use as liquid biopsies. EXPERIMENTAL DESIGN: Matched pairs of NAF (n = 15) were characterised for physicochemical properties and SDS PAGE...
May 10, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28452194/proteomic-profiling-identifies-novel-circulating-markers-associated-with-bronchiectasis-in-cystic-fibrosis
#4
Emily M DeBoer, Miranda Kroehl, Brandie D Wagner, Frank Accurso, J Kirk Harris, David A Lynch, Scott D Sagel, Robin R Deterding
PURPOSE: Evaluate bronchiectasis change over one year in children with cystic fibrosis (CF) and find blood proteins associated with bronchiectasis. EXPERIMENTAL DESIGN: Pilot study of CF children who had chest computed tomography (CT) scans and blood collected during times of clinical stability. Blood plasma was analyzed for 1129 proteins using SOMAmer(®) , the SOMAscan proteomics platform. Bronchiectasis was measured on two CT scans collected 1 year apart. Spearman's rank estimated the correlations between outcomes...
April 28, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28452132/blood-based-protein-biomarkers-for-stroke-differentiation-a-systematic-review
#5
REVIEW
Shubham Misra, Amit Kumar, Pradeep Kumar, Arun K Yadav, Dheeraj Mohania, Awadh K Pandit, Kameshwar Prasad, Deepti Vibha
BACKGROUND: Computed Tomography (CT) scan is the mainstay for diagnosis of stroke; but the facility of CT scan is not easily available. A blood based biomarker approach is required to distinguish ischemic stroke (IS) from hemorrhagic stroke (HS) in pre-hospital settings. OBJECTIVE: To conduct a systematic review of diagnostic utility of blood biomarkers for differential diagnosis of stroke. METHODS: A comprehensive literature search was carried out till March 07, 2017 in PubMed, Cochrane, Medline, OVID, and Google Scholar databases...
April 28, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28452126/plasma-proteome-of-buffaloes
#6
Leticia Gomes de Pontes, Nayara Rodrigues Vieira Cavassan, Luciana Curtolo de Barros, Rui Seabra Ferreira Junior, Benedito Barraviera, Lucilene Delazari Dos Santos
The proteomic approach has aroused the interest of veterinary medicine researchers, especially regarding the production of biopharmaceuticals and diagnosis of diseases in farm animals. Water buffaloes have gained prominence in the world economy due to the quality of their milk, meat and leather, in addition to being an important donor of blood components. This work aimed to identify and characterize the proteins present in the blood plasma of Murrah buffaloes (Bubalus bubalis) through 2D-electrophoresis, in gel protein digestion followed by mass spectrometry technique and for albumin depletion, in solution protein digestion followed by shotgun analysis...
April 28, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28447382/quantitative-proteomic-analysis-of-ezh2-inhibition-in-acute-myeloid-leukemia-reveals-the-targets-and-pathways-that-precede-the-induction-of-cell-death
#7
Jarrod J Sandow, Giuseppe Infusini, Aliaksei Z Holik, Gabriela Brumatti, Tessa V Averink, Paul G Ekert, Andrew I Webb
PURPOSE: Chromosomal translocation of the Mixed Lineage Leukemia (MLL) locus generates fusion proteins that drive acute myeloid leukemia (AML) resulting in atypical histone methyltransferase activity and alterations in the epigenetic regulation of gene expression. Targeting histone regulators, such as Enhancer of Zeste Homologue 2 (EZH2), has shown promise in AML. Profiling differential protein expression following inhibition of epigenetic regulators in AML may help to identify novel targets for therapeutics...
April 26, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28439981/evolution-of-the-plasma-proteome-of-divers-before-and-after-a-single-scuba-dive
#8
Jacky Lautridou, Vianney Pichereau, Sébastien Artigaud, Benoit Bernay, Otto Barak, Ryan Hoiland, Andrew T Lovering, Ingrid Eftedal, Zeljko Dujic, François Guerrero
PURPOSE: Decompression sickness (DCS) is a poorly understood and complex systemic disease caused by inadequate desaturation following a reduction of ambient pressure. A previous proteomic study of ours showed that DCS occurrence but not diving was associated with changes in the plasma proteome in rats, including a dramatic decrease of abundance of the tetrameric form of Transthyretin (TTR). The present study aims to assess the impact on the human blood proteome of a dive inducing significant decompression stress but without inducing DCS symptoms...
April 25, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28371361/-identification-of-salivary-protein-biomarkers-for-orthodontically-induced-inflammatory-root-resorption
#9
Karolina Elżbieta Kaczor-Urbanowicz, Omer Deutsch, Batia Zaks, Guy Krief, Stella Chaushu, Aaron Palmon
INTRODUCTION: Orthodontically induced inflammatory root resorption (OIIRR) is one of the most prevalent and unavoidable consequence of orthodontic tooth movement. The aim of this study was to discover potential diagnostic protein biomarkers for detection of OIIRR in whole saliva (WS). METHODS AND MATERIAL: Unstimulated WS was collected from 72 subjects: 48 OIIRR patients and 24 untreated, generally healthy, age and gender matched controls. Radiographic assessment of periapical X-Rays of 4 upper incisors taken before and 9 months after bonding was done...
March 29, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28371297/the-differential-plasma-proteome-of-obese-and-overweight-individuals-undergoing-a-nutritional-weight-loss-and-maintenance-intervention
#10
Sergio Oller Moreno, Ornella Cominetti, Antonio Núñez Galindo, Irina Irincheeva, John Corthésy, Arne Astrup, Wim H M Saris, Jörg Hager, Martin Kussmann, Loïc Dayon
PURPOSE: The nutritional intervention program "DiOGenes" focuses on how obesity can be prevented and treated from a dietary perspective. We generated differential plasma proteome profiles in the DiOGenes cohort to identify proteins associated with weight loss and maintenance and explore their relation to body mass index, fat mass, insulin resistance and sensitivity. EXPERIMENTAL DESIGN: Relative protein quantification was obtained at baseline and after combined weight loss/maintenance phases using isobaric tagging and MS/MS...
March 29, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28371386/complementary-proteomic-approaches-reveal-mitochondrial-dysfunction-immune-and-inflammatory-dysregulation-in-a-mouse-model-of-gulf-war-illness
#11
Zuchra Zakirova, Jon Reed, Gogce Crynen, Lauren Horne, Samira Hassan, Venkatarajan Mathura, Michael Mullan, Fiona Crawford, Ghania Ait-Ghezala
PURPOSE: Long term consequences of combined pyridostigmine bromide and permethrin exposure in C57BL6/J mice using a well characterized mouse model of exposure to these Gulf War (GW) agents were explored at the protein level. EXPERIMENTAL DESIGN: We used orthogonal proteomic approaches to identify pathways that are chronically impacted in the mouse CNS due to semi-acute GW agent exposure early in life. These analyses were performed on soluble and membrane-bound protein fractions from brain samples using two orthogonal isotopic labeling LC-MS/MS proteomic approaches - stable isotope dimethyl labeling and isobaric tags for relative and absolute quantitation...
March 28, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28319654/an-alpha-synuclein-mrm-assay-with-diagnostic-potential-for-parkinson-s-disease-and-monitoring-disease-progression
#12
Li Yang, Tessandra Stewart, Min Shi, Gwenael Pottiez, Romel Dator, Rui Wu, Patrick Aro, Robert J Schuster, Carmen Ginghina, Catherine Pan, Yuqian Gao, Weijun Qian, Cyrus P Zabetian, Shu-Ching Hu, Joseph F Quinn, Jing Zhang
AIM: The alpha-synuclein (α-syn) level in human cerebrospinal fluid (CSF), as measured by immunoassays, is promising as a Parkinson's disease (PD) biomarker. However, the levels of total α-syn are inconsistent among studies with large cohorts and different measurement platforms. Total α-syn level also does not correlate with disease severity or progression. Here, the authors developed a highly sensitive MRM method to measure absolute CSF α-syn peptide concentrations without prior enrichment or fractionation, aiming to discover new candidate biomarkers...
March 20, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28314077/comparative-subproteomic-analysis-of-clinically-acquired-fluoroquinolone-resistance-and-ciprofloxacin-stress-in-salmonella-typhimurium-dt104b
#13
Susana Correia, Michel Hébraud, Ingrid Chafsey, Christophe Chambon, Didier Viala, Yolanda Sáenz, José Luis Capelo, Patrícia Poeta, Gilberto Igrejas
PURPOSE: Antimicrobial resistance is a worldwide public health threat and Salmonella enterica subsp. enterica serotype Typhimurium phage type DT104B multiresistant strains with additional quinolone resistance have been responsible for global outbreaks and high mortality. Quinolone resistance is known to be multifactorial but is still far from a complete understanding. To give new insights about the resistance mechanisms involved, this work aimed to evaluate subproteome changes between a S...
March 17, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28296203/high-throughput-quantification-of-apolipoproteins-a-i-and-b-100-by-isotope-dilution-ms-targeting-fast-trypsin-releasable-peptides-without-reduction-and-alkylation
#14
Bryan A Parks, David M Schieltz, Michael L Andrews, Michael S Gardner, Jon C Rees, Christopher A Toth, Jeffrey I Jones, Lisa G McWilliams, Zsuzsanna Kuklenyik, James L Pirkle, John R Barr
PURPOSE: Apolipoprotein A-I (ApoA-I) and apolipoprotein B-100 (ApoB-100) are amphipathic proteins that are strong predictors of cardiovascular disease risk. The traceable calibration of apolipoprotein assays is a persistent challenge, especially for ApoB-100, which cannot be solubilized in purified form. EXPERIMENTAL DESIGN: A simultaneous quantitation method for ApoA-I and ApoB-100 was developed using tryptic digestion without predigestion reduction and alkylation, followed by LC separation coupled with isotope dilution MS analysis...
March 10, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28276159/comparative-proteome-analysis-of-wild-type-and-klotho-knockout-mouse-kidneys-using-a-combination-of-maldi-ims-and-lc-ms-ms
#15
Yoko Fujino, Tomoko Minamizaki, Ikue Hayashi, Asako Kawakami, Takaaki Miyaji, Kaoru Sakurai, Hirotaka Yoshioka, Katsuyuki Kozai, Mitsugi Okada, Yuji Yoshiko
PURPOSE: Mutation of the klotho gene in mice elicits a syndrome resembling accelerated human aging. However, there is limited evidence for the role of Klotho in the kidney. We conducted a comparative proteome analysis of wild-type (WT) and Klotho-knockout (kl(-/-) ) mouse kidneys to identify proteins involved in Klotho deficiency. EXPERIMENTAL DESIGN: MALDI-IMS of frozen kidney sections from 7-week-old male WT and kl(-/-) mice was used to determine genotype-specific differences in the MS distribution...
March 8, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28261998/use-of-a-targeted-urine-proteome-assay-tupa-to-identify-protein-biomarkers-of-delayed-recovery-after-kidney-transplant
#16
Kenneth R Williams, Christopher M Colangelo, Lin Hou, Lisa Chung, Justin M Belcher, Thomas Abbott, Isaac E Hall, Hongyu Zhao, Lloyd G Cantley, Chirag R Parikh
PURPOSE: Development of delayed graft function (DGF) following kidney transplant is associated with poor outcomes. An ability to rapidly identify patients with DGF versus those with immediate graft function (IGF) may facilitate the treatment of DGF and the research needed to improve prognosis. The purpose of this study was to use a Targeted Urine Proteome Assay to identify protein biomarkers of delayed recovery from kidney transplant. EXPERIMENTAL DESIGN: Potential biomarkers were identified using the Targeted Urine Proteome (MRM) Assay to interrogate the relative DGF/IGF levels of expression of 167 proteins in urine taken 12-18 h after kidney implantation from 21 DGF, 15 SGF (slow graft function), and 16 IGF patients...
March 6, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28261971/proteomics-a-new-perspective-for-the-understanding-of-pterygia
#17
Yi-Fan Feng, Fei Yuan
Pterygia is a common ocular surface disease bothering both the patient because of its unsightly appearance and the surgeon because of its tendency to recur. The pathogenesis of pterygia is complex and the exact mechanism(s), especially at the molecular level, remains unknown. The use of modern proteomic techniques such as isobaric tags for relative and absolute quantification (iTRAQ) may yield new knowledge on the underlying pathogenesis of pterygia. In this issue of Proteomics Clinical Applications, Linghu et al...
March 6, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28083997/dysregulation-of-cell-cell-interactions-in-brain-arteriovenous-malformations-a-quantitative-proteomic-study
#18
Xia Wang, Qiang Hao, Yuanli Zhao, Yi Guo, Wei Ge
PURPOSE: Detailed and exact mechanisms underlying brain arteriovenous malformations (bAVM) are still clinically confusing. Understanding the quantitative changes in proteins and signaling pathways would provide useful information for clinicians to understand the formation and development of bAVM, guiding individualized treatment strategies. This study was performed to establish a large human bAVM proteome database using tandem mass tag labeling and to detect changes of protein expression and pathways in human bAVM...
May 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28066995/molecular-galactose-galectin-association-in-neuroblastoma-cells-an-unconventional-tool-for-qualitative-quantitative-screening
#19
Fabio Pastorino, Mirco Ponzoni, Giuseppina Simone
PURPOSE: Galectin decorates the cell membrane and forms an extracellular molecular association with galactoside units. Here, galactoside probes have been used to study galectin expression in neuroblastoma cells. The hypothesis behind this investigation has been that the molecular mechanisms by which glycans modulate neural metastatic cells involve a protein-carbohydrate association, galectin-galactose. EXPERIMENTAL DESIGN: Preliminary screening to validate the hypothesis has been performed with galactose moieties anchored to beads...
May 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28019089/biomarker-discovery-by-proteomics-based-approaches-for-early-detection-and-personalized-medicine-in-colorectal-cancer
#20
REVIEW
Claudia Corbo, Armando Cevenini, Francesco Salvatore
About one million people per year develop colorectal cancer (CRC) and approximately half of them die. The extent of the disease (i.e. local invasion at the time of diagnosis) is a key prognostic factor. The 5-year survival rate is almost 90% in the case of delimited CRC and 10% in the case of metastasized CRC. Hence, one of the great challenges in the battle against CRC is to improve early diagnosis strategies. Large-scale proteomic approaches are widely used in cancer research to search for novel biomarkers...
May 2017: Proteomics. Clinical Applications
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