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1.
Connective tissue and diseases: from morphology to proteomics towards the development of new therapeutic appproach
Daniela Quaglino, Federica Boraldi, Giulia Annovi, Deanna Guerra, Ivonne Pasquali Ronchetti, 2009, pregledni znanstveni članek

Opis: Connective tissue consists of cells separated by the extracellular matrix, whose composition and amount vary according to age, to functional requirements, and to the presence of pathologic conditions. Within this non-random macromolecular assembly, collagens, elastin, proteoglycans and structural glycoproteins are mutually interdependent and modifications of one component, by extrinsic (environmental) and/or intrinsic (systemic, genetic, age-related) factors, may have consequences on the tissue as a whole. Since decades, different microscopical techniques have been applied mainly for diagnostic purposes and for detailed descriptions of changes occurring in cells and in matrix components. More recently, in order to dissect the molecular complexity of the matrix network, to analyse the interactions between cells and matrix and to look for modulators of cell phenotype, histomorphologic investigations have been implemented with proteomic studies that allow to identify possible diagnostic markers, and to better understand patho-mechanisms enabling the design of novel therapeutic strategies. Therefore, the progressively expanding, although incomplete, knowledge on connective tissue biology, sheds new light on the pathogenesis of diseases affecting single molecules (i.e. collagenopathies, mucopolysaccharidoses, elastinopathies) and discloses the importance of matrix components as fundamental regulators of cell phenotype, in relation, for instance, to the aging process and/or to cancer development and progression. Few examples will be presented demonstrating the promises of proteomics as a technique leading to the discovery of new therapies and possibly to the development of individualized treatments for a better patient care.
Ključne besede: pathology, proteomics, fibrosis, rheumatology, cancer
Objavljeno v RUNG: 23.08.2019; Ogledov: 2844; Prenosov: 0
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2.
Real-time multi-marker measurement of organic compounds in human breath: Towards fingerprinting breath
Iain R. White, Kerry A Willis, Christopher Whyte, Rebecca Cordell, Robert S Blake, Andrew J Wardlaw, 2013, izvirni znanstveni članek

Opis: The prospects for exploiting proton transfer reaction-time of flight-mass spectrometry (PTR-ToF-MS) in medical diagnostics are illustrated through a series of case studies. Measurements of acetone levels in the breath of 68 healthy people are presented along with a longitudinal study of a single person over a period of 1 month. The median acetone concentration across the population was 484 ppbV with a geometric standard deviation (GSD) of 1.6, whilst the average GSD during the single subject longtitudinal study was 1.5. An additional case study is presented which highlights the potential of PTR-ToF-MS in pharmacokinetic studies, based upon the analysis of online breath samples of a person following the consumption of ethanol. PTR-ToF-MS comes into its own when information across a wide mass range is required, particularly when such information must be gathered in a short time during a breathing cycle. To illustrate this property, multicomponent breath analysis in a small study of cystic fibrosis patients is detailed, which provides tentative evidence that online PTR-ToF-MS analysis of tidal breath can distinguish between active infection and non-infected patients.
Ključne besede: Volatile Organic Compounds, breath, proton transfer reaction mass spectrometry, Cystic Fibrosis
Objavljeno v RUNG: 22.07.2019; Ogledov: 3228; Prenosov: 0
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