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In collaboration with Dr.Birgit Alteheld, Institute of Nutrional Sciences of the university of Bonn, Germany the following effect is explored: Effect of a 4 week therapy with AZT on synthesis of lipoproteins as well as Docosahexaen and other fatty acids in patients with Cystic Fibrosis (CF). Moreover proinflammatory cytokines in blood and sputum are of interest.
The macrolide azithromycin (AZT) is recommended for long-term treatment of patients with CF chronically colonized with Pseudomonas aeruginosa due to its immunomodulating properties (Flume PA et al 2007). AZT causes a significant reduction of the proinflammatory cytokine Lipopolysaccharid binding protein (LBP) (Steinkamp G, Schmitt-Grohé S et al 2008). There is an inverse correlation between LBP and lung function. Moreover there is a positive correlation between the lipoprotein HDL and lung function (Schmitt-Grohé et al 2005). Ribeiro and Mitarbeiter (Ribeiro et al 2009) provided evidence of an increased expression of Lipid/Cholesterol genes of primary human airway epithelial cultures after treatment with AZT. Freedman and coworkers (Freedman et al 2004) were able to show decreased levels of Docosahexaen acid in CF patients.
The aim of this study is to explore the impact of a 4 week trial of AZT on lipoprotein and fatty acids (docosahexaen acid etc.) synthesis.
Delta F508 homozygous patients receive AZT (10 mg/kg body weight resp. max 500 mg) every Monday, Wednesday and Friday for 4 weeks. 20 patients (age 10-60 years) will be recruited. Fatty acids (blood), cytokines (whole blood and induced sputum) and clinical parameters are assessed before and 4 weeks after AZT treatment.
Enrolling by invitation
University Childrens' Hospital (Zentrum für Kinderheilkunde des Universitätsklinikum Bonn)
Published on BioPortfolio: 2017-02-08T10:38:23-0500
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An autosomal recessive genetic disease of the EXOCRINE GLANDS. It is caused by mutations in the gene encoding the CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR expressed in several organs including the LUNG, the PANCREAS, the BILIARY SYSTEM, and the SWEAT GLANDS. Cystic fibrosis is characterized by epithelial secretory dysfunction associated with ductal obstruction resulting in AIRWAY OBSTRUCTION; chronic RESPIRATORY INFECTIONS; PANCREATIC INSUFFICIENCY; maldigestion; salt depletion; and HEAT PROSTRATION.
A chloride channel that regulates secretion in many exocrine tissues. Abnormalities in the CFTR gene have been shown to cause cystic fibrosis. (Hum Genet 1994;93(4):364-8)
A strain of mice widely studied as a model for cystic fibrosis. These mice are generated from embryonic stem cells in which the CFTR (cystic fibrosis transmembrane conductance regulator) gene is inactivated by gene targeting. As a result, all mice have one copy of this altered gene in all their tissues. Mice homozygous for the disrupted gene exhibit many features common to young cystic fibrosis patients, including failure to thrive, meconium ileus, and alteration of mucous and serous glands.
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