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https://www.readbyqxmd.com/read/28938075/the-human-plasma-proteome-draft-of-2017-building-on-the-human-plasma-peptideatlas-from-mass-spectrometry-and-complementary-assays
#1
Jochen M Schwenk, Gilbert S Omenn, Zhi Sun, David S Campbell, Mark S Baker, Christopher M Overall, Ruedi Aebersold, Robert L Moritz, Eric W Deutsch
Human blood plasma provides a highly accessible window to the proteome of any individual in health and disease. Since its inception in 2002, the Human Proteome Organization's Human Plasma Proteome Project (HPPP) has been promoting advances in the study and understanding of the full protein complement of human plasma and on determining the abundance and modifications of its components. In 2017, we review the history of the HPPP and the advances of human plasma proteomics in general, including several recent achievements...
September 22, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28935478/development-and-validation-of-a-cell-based-assay-for-the-detection-of-neutralizing-antibodies-against-recombinant-insulins
#2
Sanjukta Chatterjee, Laxmikant Vashishta, Vinit S Waichale, Vivek G Nayak, Ramakrishnan Melarkode, Charles M Donnelly, Patrick T Vallano, Narendra Chirmule, Nilanjan Sengupta
Recombinant biopharmaceuticals can induce generation of anti-drug antibodies, which could potentially neutralize therapeutic drug activity. In this report, we describe development and validation of a cell-based assay for detection of neutralizing antibodies (Nab) against insulin and insulin analogues. In order to achieve clinically meaningful sensitivity the method used an early signalling event, insulin induced insulin receptor phosphorylation as the endpoint. Percentage insulin receptor phosphorylation in cell lysates was measured using ECL based ELISA...
September 18, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28930983/personalized-peptide-arrays-for-detection-of-hla-alloantibodies-in-organ-transplantation
#3
Pan Liu, Tomokazu Souma, Andrew Zu-Sern Wei, Xueying Xie, Xunrong Luo, Jing Jin
In organ transplantation, the function and longevity of the graft critically rely on the success of controlling immunological rejection reactivity against human leukocyte antigens (HLA). Histocompatibility guidelines are based on laboratory tests of anti-HLA immunity, which presents either as pre-existing or de novo generated HLA antibodies that constitute a major transplantation barrier. Current tests are built on a single-antigen beads (SAB) platform using a fixed set of ~100 preselected recombinant HLA antigens to probe transplant sera...
September 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28926630/efficacy-of-pentavalent-antimoniate-intralesional-infiltration-therapy-for-cutaneous-leishmaniasis-a-systematic-review
#4
Nayara Castelano Brito, Ana Rabello, Gláucia Fernandes Cota
BACKGROUND: The mainstays of cutaneous leishmaniasis (CL) treatment, in several world regions, are pentavalent antimony (Sbv) compounds administered parenterally, despite their recognized toxicity, which requires frequent laboratory monitoring and complicates their use in areas with scarce infrastructure. As result of these drawbacks, the WHO Expert Committee on leishmaniasis has expanded the recommendations for the use of local therapies, including Sbv intralesional infiltration (IL-Sbv), as CL therapy alternatives even in the New World...
2017: PloS One
https://www.readbyqxmd.com/read/28922553/programmable-nucleic-acid-based-polygons-with-controlled-neuroimmunomodulatory-properties-for-predictive-qsar-modeling
#5
Morgan Brittany Johnson, Justin R Halman, Emily Satterwhite, Alexey V Zakharov, My N Bui, Kheiria Benkato, Victoria Goldsworthy, Taejin Kim, Enping Hong, Marina A Dobrovolskaia, Emil F Khisamutdinov, Ian Marriott, Kirill A Afonin
In the past few years, the study of therapeutic RNA nanotechnology has expanded tremendously to encompass a large group of interdisciplinary sciences. It is now evident that rationally designed programmable RNA nanostructures offer unique advantages in addressing contemporary therapeutic challenges such as distinguishing target cell types and ameliorating disease. However, to maximize the therapeutic benefit of these nanostructures, it is essential to understand the immunostimulatory aptitude of such tools and identify potential complications...
September 18, 2017: Small
https://www.readbyqxmd.com/read/28874892/treatment-patterns-and-trends-in-patients-dying-of-prostate-cancer-in-quebec-a-population-based-study
#6
A Dragomir, J Rocha, M Vanhuyse, F L Cury, W Kassouf, J Hu, A G Aprikian
INTRODUCTION: Since just after the year 2000 in Quebec, the management of metastatic castration-resistant prostate cancer (mcrpc) has evolved considerably, with the inclusion of docetaxel-based chemotherapy, bone-targeted therapies (zoledronic acid and denosumab), and more recently, abiraterone, enzalutamide, and cabazitaxel for docetaxel-refractory patients. In the present study, we aimed to analyze contemporary mcrpc management patterns and therapy utilization trends in Quebec. METHODS: The study cohort consisted of patients dying of prostate cancer (pca) between January 2001 and December 2013, selected from Quebec public health care insurance databases...
August 2017: Current Oncology
https://www.readbyqxmd.com/read/28871547/a-step-by-step-protocol-for-classifying-aox-proteins-in-flowering-plants
#7
José Hélio Costa, Clesivan Pereira Dos Santos, Kátia Daniella da Cruz Saraiva, Birgit Arnholdt-Schmitt
The potential of alternative oxidase (AOX) genes to develop functional markers for plant breeding programs has been emphasized. In this sense, it is essential to have a reliable classification system, which could aid in the selection of candidate AOX genes from different species. In the case of angiosperms AOX, a robust classification system is required because this enzyme is encoded by variable gene numbers (1-6 genes) with variable AOX subfamilies and subtypes. Thus, in this protocol, we present a detailed guideline to application of a classification scheme of AOX based on specific amino acids and phylogeny...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28865686/use-of-the-hyphenated-lc-ms-ms-technique-and-nmr-ir-spectroscopy-for-the-identification-of-exemestane-stress-degradation-products-during-the-drug-development
#8
Elżbieta U Stolarczyk, Anna Rosa, Marek Kubiszewski, Joanna Zagrodzka, Marcin Cybulski, Łukasz Kaczmarek
Exemestane (6-Methyleneandrosta-1,4-diene-3,17-dione) active pharmaceutical ingredient (EE-3) was subjected to thermal, photolytic, oxidative, acidic and base stress conditions prescribed by the ICH (International Conference on Harmonization) guideline Q1A(R2). EE-3 was found to degrade in base, acidic and oxidative conditions. Eleven new degradation products of EE-3 were characterized by the LC-MS/MS technique. One of these impurities was isolated and identified by the LC-MS/MS, NMR and IR techniques. The LC-MS/MS studies were carried out to establish fragmentation pathways of EE-3 and its new impurity...
September 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28864733/approach-to-hypertriglyceridemia-in-the-pediatric-population
#9
Badhma Valaiyapathi, Bhuvana Sunil, Ambika P Ashraf
Hypertriglyceridemia is increasingly identified in children and adolescents, owing to improved screening and higher prevalence of childhood obesity. Hypertriglyceridemia can result from either increased triglyceride (TG) production or reduced TG clearance. The etiologic origin can be primary (genetic) or secondary, but it is often multifactorial. Management is challenging because of the interplay of genetic and secondary causes and lack of evidence-based guidelines. Lifestyle changes and dietary interventions are most important, especially in hypertriglyceridemia associated with obesity...
September 2017: Pediatrics in Review
https://www.readbyqxmd.com/read/28859497/first-report-of-coexistence-of-ampc-beta-lactamase-genes-in-klebsiella-pneumoniae-strains-isolated-from-burn-patients
#10
Roya Ghanavati, Davood Darban-Sarokhalil, Fateme Navab-Moghadam, Hossein Kazemian, Gholamreza Irajian, Shabnam Razavi
Klebsiella spp. are among the most frequently isolated bacteria from burn wounds. These organisms are among the most important opportunistic pathogens, causing hospital-acquired and healthcare-associated infections worldwide. Limited information is available about prevalence of AmpC-producing Klebsiella pneumoniae from burn patients. Therefore, the aim of this study was to determine the characterization of AmpC beta-lactamase among K. pneumoniae isolated from burn patients. Samples were collected from wound specimens of patients with burn injury from a burn hospital in Tehran during 18 months (March 2015 to August 2016)...
September 1, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/28853897/progress-on-the-hupo-draft-human-proteome-2017-metrics-of-the-human-proteome-project
#11
Gilbert S Omenn, Lydie Lane, Emma K Lundberg, Christopher M Overall, Eric W Deutsch
The Human Proteome Organization (HUPO) Human Proteome Project (HPP) continues to make progress on its two overall goals: (1) completing the protein parts list, with an annual update of the HUPO draft human proteome, and (2) making proteomics an integrated complement to genomics and transcriptomics throughout biomedical and life sciences research. neXtProt version 2017-01-23 has 17,008 confident protein identifications (Protein Existence [PE] level 1) that are compliant with the HPP Guidelines v2.1 (https://hupo...
August 30, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28846867/simultaneous-measurement-of-whole-blood-vitamin-b1-and-vitamin-b6-using-lc-esi-ms-ms
#12
R J A C Roelofsen-de Beer, B D van Zelst, R Wardle, P G Kooij, Y B de Rijke
Vitamin B1 and B6 have recently been included in the Dutch clinical guidelines for the general practitioner in the differential diagnosis of dementia. To keep up with the sharp rise in the number of requests, an LC-MS/MS method using stable isotopes as internal standards was developed. The active vitamers thiamine pyrophosphate (TPP) and pyridoxal-5'-phosphate (PLP) in whole blood are simultaneously measured with a short run time of 2min. Whole blood is mixed with internal standard solution containing both TPP-d3 and PLP-d3, followed by deproteinization with a trichloroacetic acid (TCA) solution...
August 12, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28843222/accuracy-of-cervical-visual-inspection-with-acetic-acid-guide-for-4-quadrant-random-cervical-biopsies-by-general-practitioners-in-women-with-abnormal-pap-smears
#13
Patrada Suwansura, Darigar Darojn
Objective: To study the performance of visual inspection with acetic acid plus 4-quadrant cervical biopsy (V4B) by general practitioners in detecting high grade cervical lesion, compared to highest histopathologic grade from the American Society for Colposcopy and Cervical Pathology American Society for Colposcopy and Cervical Pathology (ASCCP) 2013 work up guidelines. Materials and methods: Patients with abnormal cervical cytologic screening results suggesting low grade lesions underwent V4B by general practitioners followed by colposcopy on the same day bases on ASCCP 2013 guidelines...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28833656/the-in-vitro-antibacterial-activity-of-incomplete-iron-salt-of-polyacrylic-acid-against-pseudomonas-aeruginosa-meticillin-resistant-staphylococcus-pseudintermedius-and-meticillin-resistant-s-aureus
#14
Meghan K Solc, J Scott Weese, Edward Jazic
BACKGROUND: The incomplete iron salt of polyacrylic acid (IIS-PAA) has been used for its haemostatic, wound healing and antibacterial properties in human patients. IIS-PAA is a water-soluble, acidic, hydrophilic polymer that is active at pH 2.9-4.0. HYPOTHESES/OBJECTIVES: To evaluate the antibacterial effect of IIS-PAA against Pseudomonas aeruginosa, meticillin-resistant Staphylococcus pseudintermedius (MRSP) and meticillin-resistant S. aureus (MRSA). METHODS: This was a prospective, nonblinded in vitro study...
August 22, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28832556/an-appetite-for-modernizing-the-regulatory-framework-for-protein-content-claims-in-canada
#15
Christopher P F Marinangeli, Samara Foisy, Anna K Shoveller, Cara Porter, Kathy Musa-Veloso, John L Sievenpiper, David J A Jenkins
The need for protein-rich plant-based foods continues as dietary guidelines emphasize their contribution to healthy dietary patterns that prevent chronic disease and promote environmental sustainability. However, the Canadian Food and Drug Regulations provide a regulatory framework that can prevent Canadian consumers from identifying protein-rich plant-based foods. In Canada, protein nutrient content claims are based on the protein efficiency ratio (PER) and protein rating method, which is based on a rat growth bioassay...
August 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28828196/use-of-proton-pump-inhibitors-in-general-practice
#16
Cesare Tosetti, Ilaria Nanni
AIM: To evaluate the characteristics of the prescription of the proton pump inhibitor drugs (PPI) and the adherence to the indications of the guidelines regulating the reimbursement limitations set forth by the Italian Drug Agency. METHODS: Thirty general practitioners (GP) participated in the study, providing data on more than 40000 patients in total. The population was divided into non occasional users of PPI drugs (PPI users) and non-users (PPI non-users) based on evidence of a prescription of at least 3 packs of PPIs in the last 90 d before analysis...
August 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28825538/development-and-validation-of-a-fast-stability-indicating-ion-paired-reversed-phase-hplc-method-for-the-assay-of-thiabendazole-and-estimation-of-its-related-compounds
#17
Peng Zhang, Jingzhi Tian, Abu Rustum
Thiabendazole is a benzimidazole-based anthelmintic active pharmaceutical ingredient for the treatment of intestinal pinworm and Strongyloides infections. Thiabendazole is also used as a fungicide to control fungal diseases in fruits and vegetables. In this paper, we report, for the first time, the development and validation of a novel stability-indicating reversed-phase ion-paired HPLC method for the assay of thiabendazole and estimation of its related compounds. Chromatographic separation was achieved by using an isocratic elution at a flow rate of 1...
January 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28822574/analysis-of-individual-and-total-microcystins-in-surface-water-by-on-line-preconcentration-and-desalting-coupled-to-liquid-chromatography-tandem-mass-spectrometry
#18
Gabriel Munoz, Sung Vo Duy, Audrey Roy-Lachapelle, Barry Husk, Sébastien Sauvé
A fast and high-throughput method is proposed for the determination of total microcystins (ΣMC) in environmental surface waters. After a 1-h Lemieux-von Rudloff oxidation step to yield the 2-methyl-3-methoxy-4-phenylbutyric acid (MMPB) moiety, samples were quenched, filtered, and directly analyzed. This was achieved via solid phase extraction (SPE) coupled on-line to ultra-high performance liquid chromatography electrospray ionization triple stage quadrupole mass spectrometry. The choice of on-line SPE settings was conducted using experimental designs...
August 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28820128/molecular-antimicrobial-resistance-surveillance-for-neisseria-gonorrhoeae-northern-territory-australia
#19
David M Whiley, Ella Trembizki, Cameron Buckley, Kevin Freeman, Robert W Baird, Miles Beaman, Marcus Chen, Basil Donovan, Ratan L Kundu, Christopher K Fairley, Rebecca Guy, Tiffany Hogan, John M Kaldor, Mahdad Karimi, Athena Limnios, David G Regan, Nathan Ryder, Jiunn-Yih Su, James Ward, Monica M Lahra
Neisseria gonorrhoeae antimicrobial resistance (AMR) is a globally recognized health threat; new strategies are needed to enhance AMR surveillance. The Northern Territory of Australia is unique in that 2 different first-line therapies, based primarily on geographic location, are used for gonorrhea treatment. We tested 1,629 N. gonorrhoeae nucleic acid amplification test-positive clinical samples, collected from regions where ceftriaxone plus azithromycin or amoxicillin plus azithromycin are recommended first-line treatments, by using 8 N...
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28814829/antibiotic-susceptibility-heteroresistance-and-updated-treatment-strategies-in-helicobacter-pylori-infection
#20
REVIEW
Maria Teresa Mascellino, Barbara Porowska, Massimiliano De Angelis, Alessandra Oliva
In this review, we discuss the problem of antibiotic resistance, heteroresistance, the utility of cultures and antibiotic susceptibility tests in Helicobacter pylori (Hp) eradication, as well as the updated treatment strategies for this infection. The prevalence of antibiotic resistance is increasing all over the world, especially for metronidazole and clarithromycin, because of their heavy use in some geographical areas. Heteroresistance (simultaneous presence of both susceptible and resistant strains in different sites of a single stomach) is another important issue, as an isolate could be mistakenly considered susceptible if a single biopsy is used for antimicrobial tests...
2017: Drug Design, Development and Therapy
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