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Clinical Proteomics

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https://www.readbyqxmd.com/read/28529466/the-serum-protein-responses-to-treatment-with-xiaoke-pill-and-glibenclamide-in-type-2-diabetes-patients
#1
Xiuying Zhang, Haidan Sun, Sanjoy K Paul, Quanhui Wang, Xiaomin Lou, Guixue Hou, Bo Wen, Linong Ji, Siqi Liu
AIM: The Xiaoke Pill containing Chinese herb extracts and Glibenclamide, is used in therapy for type 2 diabetes mellitus (T2DM), and is effective in reducing the risk of hypoglycemia and improving diabetes symptoms compared with Glibenclamide. We describe a quantitative proteomics project to measure the T2DM serum proteome response to the Xiaoke Pill and Glibenclamide. METHODS: Based on a recently conducted 48-week clinical trial comparing the safety and efficacy of Glibenclamide (n = 400) and Xiaoke Pill (n = 400), after matching for age, sex, BMI, drug dose and whether hypoglycemia occurred, 32 patients were selected for the serum based proteomic analysis and divided into four groups (with/without hypoglycemia treated with Xiaoke Pill or Glibenclamide, n = 8 for each group)...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28529328/perivascular-adipose-tissue-epiphenomenon-or-local-risk-factor
#2
REVIEW
K Schäfer, I Drosos, S Konstantinides
Obesity is associated with an increased cardiovascular risk, but the mechanisms underlying the link between increased body weight and vascular disease are incompletely understood. Over the past 15 years, perivascular adipose tissue has emerged as active component of the vessel wall involved in vascular homeostasis. However, perivascular adipose tissue can adopt detrimental properties under the influence of obesity and other factors and contribute actively to the pathophysiology of cardiovascular disease. Conversely, changes of the vessel wall may negatively affect perivascular adipose tissue qualities...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28528185/simvastatin-ameliorate-memory-deficits-and-inflammation-in-clinical-and-mouse-model-of-alzheimer-s-disease-via-modulating-the-expression-of-mir-106b
#3
Wenzhong Huang, Zhenyu Li, Liandong Zhao, Wei Zhao
BACKGROUND: Alzheimer's disease (AD) as a neurodegenerative brain disorder is a devastating pathology leading to disastrous cognitive impairments and dementia, and several studies have shown that AD is closely related to the inflammation, so anti-inflammatory treatment may provide therapeutic benefits. In this study, the effect of simvastatin on inflammation was investigated and the underlying mechanisms were explored. METHODS: First, we tested the effect of simvastatin on AD in clinical research...
May 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28525563/omics-biomarkers-in-ophthalmology
#4
Susette Lauwen, Eiko K de Jong, Dirk J Lefeber, Anneke I den Hollander
"Omics" refers to high-throughput analyses of genes, proteins, or metabolites in a biological system, and is increasingly used for ophthalmic research. These system-based approaches can unravel disease-related processes and are valuable for biomarker discovery. Furthermore, potential therapeutic targets can be identified based on omics results, and targeted follow-up experiments can be designed to gain molecular understanding of the disease and to test new therapies. Here, we review the application of omics techniques in eye diseases, focusing on age-related macular degeneration (AMD), diabetic retinopathy (DR), retinal detachment (RD), myopia, glaucoma, Fuchs' corneal dystrophy (FCD), cataract, keratoconus, and dry eyes...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28524624/pulmonary-arterial-hypertension-progress-in-understanding-the-disease-and-prioritizing-strategies-for-drug-development
#5
REVIEW
P Ghataorhe, C J Rhodes, L Harbaum, M Attard, J Wharton, M R Wilkins
Pulmonary arterial hypertension (PAH), at one time a largely overlooked disease, is now the subject of intense study in many academic and biotech groups. The availability of new treatments has increased awareness of the condition. This in turn has driven a change in the demographics of PAH, with an increase in the mean age at diagnosis. The diagnosis of PAH in more elderly patients has highlighted the need for careful phenotyping of patients and for further studies to understand how best to manage pulmonary hypertension associated with, for example, left heart disease...
May 19, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28523502/maldi-ms-imaging-in-the-study-of-glomerulonephritis
#6
Andrew Smith, Manuel Galli, Vincenzo L'Imperio, Fabio Pagni, Fulvio Magni
Glomerulonephritis (GNs) are one of the most frequent causes of chronic kidney disease (CKD), a renal condition that often leads to end-stage renal failure, and a careful assessment of these diseases is essential for prognostic and therapeutic purposes. The application of MALDI-MSI directly on bioptic renal tissue represents a new stimulating perspective and facilitates the detection of specific proteomic indicators that are directly correlated with the pathological alterations that occur within the glomeruli during the development of glomerulonephritis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28523014/harnessing-plant-biodiversity-for-the-discovery-of-novel-anticancer-drugs-targeting-microtubules
#7
REVIEW
Songbo Xie, Jun Zhou
The microtubule cytoskeleton plays a critical role in a wide range of cellular activities and has been shown to be a highly effective target for the treatment of human malignancies. Despite the recent focus on proteomics and high-throughput profiling, it is clear that analysis of plant extracts has yielded several highly efficacious microtubule-targeting agents (MTAs) currently in clinical use, as well as agents in the current pipeline with promising efficacy. To date, a large proportion of the world's plant biodiversity remains untapped by the pharmaceutical industry, presenting a major opportunity for the discovery of novel pharmacologically active lead compounds...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28522940/potential-urine-proteomics-biomarkers-for-primary-nephrotic-syndrome
#8
Young Wook Choi, Yang Gyun Kim, Min-Young Song, Ju-Young Moon, Kyung-Hwan Jeong, Tae-Won Lee, Chun-Gyoo Ihm, Kang-Sik Park, Sang-Ho Lee
BACKGROUND: Nephrotic syndrome (NS) is a nonspecific kidney disorder, commonly caused by minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), and membranous nephropathy (MN). Here we analyzed urinary protein profiles, aiming to discover disease-specific biomarkers of these three common diseases in NS. METHODS: Sixteen urine samples were collected from patients with biopsy-proven NS and healthy controls. After removal of high-abundance proteins, the urinary protein profile was analyzed by LC-MS/MS to generate a discovery set...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28522341/systemic-and-ocular-fluid-compounds-as-potential-biomarkers-in-age-related-macular-degeneration
#9
REVIEW
Eveline Kersten, Constantin C Paun, Rosa L Schellevis, Carel B Hoyng, Cécile Delcourt, Imre Lengyel, Tunde Peto, Marius Ueffing, Caroline C W Klaver, Sascha Dammeier, Anneke I den Hollander, Eiko K de Jong
Biomarkers can help unravel mechanisms of disease and identify new targets for therapy. They can also be useful in clinical practice for monitoring disease progression, evaluation of treatment efficacy and risk assessment in multifactorial diseases, such as age-related macular degeneration (AMD). AMD is a highly prevalent progressive retinal disorder for which multiple genetic and environmental risk factors have been described, but the exact etiology is not yet fully understood. Many compounds have been evaluated for their association with AMD...
May 15, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28521263/gamma-interferon-responses-to-proteome-determined-specific-recombinant-proteins-in-cattle-experimentally-and-naturally-infected-with-paratuberculosis
#10
Valerie Hughes, Jim McNair, Samuel Strain, Claire Barry, Joyce McLuckie, Mintu Nath, George Caldow, Karen Stevenson
Johne's disease (JD), is a fatal enteritis of animals caused by infection with Mycobacterium avium subspecies paratuberculosis (Map). Diagnosis of subclinical JD is problematic as test sensitivity is limited. Th1 responses to Map are activated early, thus detection of a cell-mediated response, indicated by measuring interferon gamma (IFN-γ) stimulated by mycobacterial antigens, may give the first indication of sub-clinical infection. Crude extracts of Map (PPDJ) have been used to detect the cell-mediated response in infected cattle...
April 29, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28516971/salivary-biomarkers-and-proteomics-future-diagnostic-and-clinical-utilities
#11
M Castagnola, E Scarano, G C Passali, I Messana, T Cabras, F Iavarone, G Di Cintio, A Fiorita, E De Corso, G Paludetti
Saliva testing is a non-invasive and inexpensive test that can serve as a source of information useful for diagnosis of disease. As we enter the era of genomic technologies and -omic research, collection of saliva has increased. Recent proteomic platforms have analysed the human salivary proteome and characterised about 3000 differentially expressed proteins and peptides: in saliva, more than 90% of proteins in weight are derived from the secretion of three couples of "major" glands; all the other components are derived from minor glands, gingival crevicular fluid, mucosal exudates and oral microflora...
April 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28516774/multiplexed-mrm-based-protein-quantitation-using-two-different-stable-isotope-labeled-peptides-for-calibration
#12
André LeBlanc, Sarah A Michaud, Andrew J Percy, Darryl B Hardie, Juncong Yang, Nicholas J Sinclair, Jillaine I Proudfoot, Adam Pistawka, Derek S Smith, Christoph H Borchers
Precise and robust quantitation of the endogenous plasma proteome is a requirement for fundamental and biomedical research as well as for clinical applications. Targeted detection of peptides in a bottom-up strategy is the most common and precise mass spectrometry-based quantitation approach when combined with the use of stable isotope labeled peptides. However, when measuring protein in plasma, the unknown endogenous levels prevent the implementation of best calibration strategies since no blank matrix is available...
May 18, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28514751/large-scale-clinical-validation-of-biomarkers-for-pancreatic-cancer-using-a-mass-spectrometry-based-proteomics-approach
#13
Jisook Park, Eunjung Lee, Kyoung-Jin Park, Hyung-Doo Park, Jong-Won Kim, Hye In Woo, Kwang Hyuck Lee, Kyu-Taek Lee, Jong Kyun Lee, Joon-Oh Park, Young Suk Park, Jin Seok Heo, Seong Ho Choi, Dong Wook Choi, Kee-Taek Jang, Soo-Youn Lee
We performed an integrated analysis of proteomic and transcriptomic datasets to develop potential diagnostic markers for early pancreatic cancer. In the discovery phase, a multiple reaction monitoring assay of 90 proteins identified by either gene expression analysis or global serum proteome profiling was established and applied to 182 clinical specimens. Nine proteins (P < 0.05) were selected for the independent validation phase and quantified using stable isotope dilution-multiple reaction monitoring-mass spectrometry in 456 specimens...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28513226/application-of-proteomics-to-the-study-of-helicobacter-pylori-and-implications-for-the-clinic
#14
Giulia Bernardini, Natale Figura, Antonio Ponzetto, Barbara Marzocchi, Annalisa Santucci
Helicobacter pylori (H. pylori) is a gram-negative bacterium that colonizes the gastric epithelium and mucous layer of more than half the world's population. H. pylori is a primary human pathogen, responsible for the development of chronic gastritis, peptic ulceration and gastric cancer. Proteomics is impacting several aspects of medical research: understanding the molecular basis of infection and disease manifestation, identification of therapeutic targets and discovery of clinically relevant biomarkers. Areas covered: The main aim of the present review is to provide a comprehensive overview of the contribution of proteomics to the study of H...
May 17, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28510455/clinically-relevant-multidrug-transporters-are-regulated-by-micrornas-along-the-human-intestine
#15
Henrike Bruckmueller, Paul Martin, Meike Kaehler, Sierk Haenisch, Marek Ostrowski, Marek Drozdzik, Werner Siegmund, Ingolf Cascorbi, Stefan Oswald
Intestinal drug transporters are crucial determinants for absorption and oral bioavailability of drugs. In healthy tissue donators, a recent study revealed profound discrepancies between mRNA expression and protein abundance as well as differences in the protein content between small and large intestine for clinically relevant multidrug transporters as the ATP binding cassette transporter subfamily B member 1 (ABCB1) and subfamily C member 3 (ABCC3) and the solute carrier family 15 member 1 (SLC15A1, PEPT1)...
May 16, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28510363/purification-toxoplasma-gondii-tissue-cysts-using-percoll-gradients
#16
Elizabeth A Watts, Animesh Dhara, Anthony P Sinai
The protozoan parasite Toxoplasma gondii is capable of infecting all warm-blooded animals and humans. Infectious, transmissible forms of the parasite include oocysts produced by the sexual cycle within the definitive feline host and tissue cysts that form Toxoplasma in the central nervous system and muscle during the asexual cycle within all chronically infected warm-blooded hosts. These tissue cysts are populated with slow-growing bradyzoites, which until recently have been thought to be dormant entities in the context of immune sufficiency...
May 16, 2017: Current Protocols in Microbiology
https://www.readbyqxmd.com/read/28510335/proteoforms-in-peripheral-blood-mononuclear-cells-as-novel-rejection-biomarkers-in-liver-transplant-recipients
#17
T K Toby, M Abecassis, K Kim, P M Thomas, R T Fellers, R D LeDuc, N L Kelleher, J Demetris, J Levitsky
Biomarker profiles of acute rejection in liver transplant recipients could enhance the diagnosis and management of recipients. Our aim was to identify diagnostic proteoform signatures of acute rejection in circulating immune cells, using an emergent "top down" proteomics methodology. We prepared differentially processed and cryopreserved cell lysates from 26 non-viral liver transplant recipients by molecular weight-based fractionation and analyzed them by mass spectrometry of whole proteins in three steps: 1) Nanocapillary liquid chromatography coupled with high-resolution tandem mass spectrometry; 2) database searching to identify and characterize intact proteoforms; 3) data processing through a hierarchical linear model matching the study design to quantify proteoform fold changes in patients with rejection vs...
May 16, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28509388/proteomic-explorations-of-autism-spectrum-disorder
#18
Nicholas Szoko, Adam J McShane, Marvin R Natowicz
Proteomics, the large-scale study of protein expression in cells and tissues, is a powerful tool to study the biology of clinical conditions and has provided significant insights in many experimental systems. Herein, we review the basics of proteomic methodology and discuss challenges in using proteomic approaches to study autism. Unlike other experimental approaches, such as genomic approaches, there have been few large-scale studies of proteins in tissues from persons with autism. Most of the proteomic studies on autism used blood or other peripheral tissues; few studies used brain tissue...
May 16, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28508357/biofluid-proteomics-and-biomarkers-in-traumatic-brain-injury
#19
Safa Azar, Anwarul Hasan, Richard Younes, Farah Najdi, Lama Baki, Hussein Ghazale, Firas H Kobeissy, Kazem Zibara, Stefania Mondello
Traumatic brain injury (TBI) is an injury to the brain caused by an external mechanical force, affecting millions of people worldwide. The disease course and prognosis are often unpredictable, and it can be challenging to determine an early diagnosis in case of mild injury as well as to accurately phenotype the injury. There is currently no cure for TBI-drugs having failed repeatedly in clinical trials-but an intense effort has been put to identify effective neuroprotective treatment. The detection of novel biomarkers, to understand more of the disease mechanism, facilitates early diagnosis, predicts disease progression, and develops molecularly targeted therapies that would be of high clinical interest...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28508356/progress-and-potential-of-imaging-mass-spectrometry-applied-to-biomarker-discovery
#20
Jusal Quanico, Julien Franck, Maxence Wisztorski, Michel Salzet, Isabelle Fournier
Mapping provides a direct means to assess the impact of protein biomarkers and puts into context their relevance in the type of cancer being examined. To this end, mass spectrometry imaging (MSI) was developed to provide the needed spatial information which is missing in traditional liquid-based mass spectrometric proteomics approaches. Aptly described as a "molecular histology" technique, MSI gives an additional dimension in characterizing tumor biopsies, allowing for mapping of hundreds of molecules in a single analysis...
2017: Methods in Molecular Biology
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