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Tytuł pozycji:

Serum periostin : Population reference range and daily variation : a thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Master of Clinical Research

Tytuł :
Serum periostin : Population reference range and daily variation : a thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Master of Clinical Research
Autorzy :
Caswell-Smith, Rachel
Pokaż więcej
Temat :
Biochemical markers Therapeutic use.
Extracellular matrix proteins Therapeutic use.
Asthma Alternative treatment.
Asthma Alternative treatment.
Dodane szczegóły :
Victoria University of Wellington. School of Biological Sciences.
Victoria University of Wellington, degree granting institution.
Call Numbers :
R853.B54 .C379 2015
Opis fizyczny :
1 online resource (xi, 103 pages ; illustrations)
URL :
http://researcharchive.vuw.ac.nz/handle/10063/5625
Dostępność :
Open access content. Open access content
Author Retains All Rights
Pozostałe numery :
UX0 oai:researcharchive.vuw.ac.nz:10063/5625
969654499
Źródło wspomagające :
From OAIster®, provided by the OCLC Cooperative.
Numer akcesji :
edsoai.ocn969654499
Background: Periostin, previously termed Osteoblast-specific factor 2, is an extracellular matrix protein involved in development, stress or injury response, epithelial mesenchymal transition, restructuring of the extracellular matrix and remodelling of tissues. It has been studied across a wide range of tissues and pathologic processes including heart valve and periodontal ligament formation, asthma, myocardial infarction, bone fractures, and atopic dermatitis. It is currently being evaluated as a potential biomarker for directing and monitoring asthma treatment including monoclonal antibody treatment against IL13 and IgE. The clinical utility of periostin as a biomarker is severely limited by the lack of understanding of its serum levels and the factors affecting these levels. The absence of a normal reference range and daily variation may affect its clinical applicability as a TH2 biomarker. Objectives: To derive age- and sex-related reference intervals from an adult population sample without asthma or COPD and to determine the effect of sampling time on serum periostin levels in adult participants with and without asthma. Methods: - Reference Range Serum periostin levels were measured in 480 individuals, comprising 60 female and 60 male adults in each of the 18-30, 31-45, 46-60 and 61-75 year age groups. Key exclusion criteria included a doctor's diagnosis of asthma, chronic bronchitis or COPD, and a history of wheezing or use of respiratory inhalers in the last 12 months. The distribution of periostin and logarithm-transformed periostin levels were derived, and 90% confidence intervals for an individual prediction calculated. - Daily Variation Serum periostin was measured at 2 hourly intervals from 0800 to 1800 hours in 16 participants with stable asthma prescribed inhaled corticosteroid and long-acting beta-agonist therapy, and in 16 otherwise healthy participants without asthma. Mixed linear models were used to compare time zero (0800) with subsequent measurement time for serum periostin for both asthma and non-asthma groups.

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