The Role of Fibrocytes in Acute Lung Injury

June 13, 2011 updated by: Taipei Medical University WanFang Hospital
The important character of acute lung injury (ALI) is alveolar capillary membrane damage caused by different diseases, such as sepsis, trauma and shock. One of the important pathological stages is the varying degrees of interstitial fibrosis and semi-permeable alveolar membrane fibrosis. It has been proved that CXCL12/SDF-1 (stromal cell-derived factor-1) induces fibrocyte migration, and promotes fibrosis progression. Study indicated that inhibition of TLR4 receptor signaling pathway improves fibrosis progression induced by ALI, however, the role of fibrocyte in ALI is still unclear. The fibrocytes was significantly increased in asthmatic patients with pulmonary fibrosis, which companies with increased CTGF expression. Therefore, this project assumes that fibrocyte will differentiation to fibroblast/myofibroblast in patient with acute lung injury, which in turn leads to progression of fibrosis. The central hypothesis of this project is that peripheral progenitor cell fibrocytes play an important role in alveolitis caused by acute lung injury. The overall objective of this project is to study the role of fibrocytes in acute lung injury.

Study Overview

Status

Unknown

Conditions

Study Type

Observational

Enrollment (Anticipated)

20

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • Taipei, Taiwan
        • Taipei Medical University - WanFang Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Acute Lung Injury patients

Description

Inclusion Criteria:

  • Acute Lung Injury patients
  • Above 20 years old
  • Bilateral lung infiltrates
  • PaO2/FiO2<300mmHg
  • PCWP<18mmHg

Exclusion Criteria:

  • Pregnant women
  • Under 20 years old
  • Hb<8.0mg/dl

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Taipei Medical University WanFang Hospital

Investigators

  • Principal Investigator: Kuan-Jen Bai, Taipei Medical University WanFang Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2011

Study Completion (Anticipated)

December 1, 2011

Study Registration Dates

First Submitted

June 13, 2011

First Submitted That Met QC Criteria

June 13, 2011

First Posted (Estimate)

June 14, 2011

Study Record Updates

Last Update Posted (Estimate)

June 14, 2011

Last Update Submitted That Met QC Criteria

June 13, 2011

Last Verified

June 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 99077

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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