Mucin in Sputum of CF During Pulmonary Exacerbation

NCT ID: NCT00202072

Last Updated: 2005-09-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

25 participants

Study Classification

OBSERVATIONAL

Study Start Date

2004-01-31

Study Completion Date

2005-09-30

Brief Summary

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The purpose of this study is to determine whether mucin is increased during pulmonay exacerbations in adult patients with cystic fibrosis (CF).

Detailed Description

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CF is typically associated with mucus hypersecretion in the airways. In health, mucin is the major macromolecular component and is responsible for the protective and clearance properties of the mucus gel. In a recent study we found that mucins are decreased in the sputum of adult CF patients.

In this study we want to investigate the differences on the mucin and DNA quantity and quality of airway secretions in during pulmoanry exacerbation.We hypothesize that during an exacerbation the mucin and DNA amount is increasing.

The aim of this study is to evaluate the molecular (mucins) and structure properties (mucin-DNA-network) of the airway secretions in CF related to the severity of the disease.

We characterize sputum composition of patients with pulmonary exacerbations. Using gel electrophoresis and dot-blot with specific antibodies we will analyze MUC5AC and MUC5B mucins. DNA amount will be measured by microfluorimetry. With the laser scanning confocal microscopy the mucin-DNA-network will be evaluated.

The significance of these studies is that they will give us novel information about the pathogenesis of chronic inflammatory airway diseases, provide tools for assessing the progression of lung disease, and most critically, will identify novel opportunities and targets for therapeutic intervention.

Conditions

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Cystic Fibrosis

Keywords

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lung airway pulmonary exacerbation mucus

Study Design

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Observational Model Type

DEFINED_POPULATION

Study Time Perspective

RETROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* cystic fibrosis
* chronic pseudomonas aeruginosa inflammation
* pulmonary exacerbation

Exclusion Criteria

\-
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Philipps University Marburg

OTHER

Sponsor Role lead

Principal Investigators

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Markus O Henke, MD

Role: PRINCIPAL_INVESTIGATOR

Philipps University Marburg

Locations

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Pediatric department, CF center, University Giessen

Giessen, , Germany

Site Status RECRUITING

Pediatric department, CF center, University Marburg

Marburg, , Germany

Site Status RECRUITING

Countries

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Germany

Central Contacts

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Markus O Henke, MD

Role: CONTACT

Phone: 06421

Email: [email protected]

Facility Contacts

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Hermann Lindemann, MD

Role: primary

Markus O Henke, MD

Role: primary

References

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Henke MO, Renner A, Huber RM, Seeds MC, Rubin BK. MUC5AC and MUC5B Mucins Are Decreased in Cystic Fibrosis Airway Secretions. Am J Respir Cell Mol Biol. 2004 Jul;31(1):86-91. doi: 10.1165/rcmb.2003-0345OC. Epub 2004 Feb 26.

Reference Type BACKGROUND
PMID: 14988081 (View on PubMed)

Other Identifiers

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208/03

Identifier Type: -

Identifier Source: org_study_id