The Relationship Between Single Nucleotide Polymorphisms of Chitinase 3-like 1 Gene,YKL-40 Serum Levels and Adult Asthma (CHI3L1)

May 5, 2011 updated by: China Medical University Hospital
The objective of this study was to investigate the relationship between single nucleotide polymorphism of chitinase 3-like 1 and human asthma.

Study Overview

Status

Unknown

Conditions

Detailed Description

Chitinase 3-like 1 (CHI3L1) is a member of human chitinases family. According to previous studies in literatures, increased expression of CHI3L1 has been proven to be correlated with the presence of different diseases, including cancers, autoimmune diseases, and chronic inflammatory conditions. Elevated serum levels of YKL-40 are associated with increased disease severity, poorer prognosis and shorter survival for many other diseases. When monitored over time, increases in serum YKL-40 parallel with disease progression. It can serve as an measurable marker of changes in disease status.

There were indicated that chitinase 3-like 1 might be associated with some clinical diseases. The C-allele of the -131 C→G (rs4950928) polymorphism of CHI3L1 has been shown to associate with bronchial hyperresponsiveness and reduced lung function. It is suggesting that variations in CHI3L1 may influence risk of asthma.

The objective of this study was to investigate the relationship between single nucleotide polymorphism of chitinase 3-like 1 and human asthma. The association between CHI3L1 SNPs and the continuous outcomes were examined by real time PCR and gene sequencing analysis.

In Korean reports there was no significant associations between CHI3L1 SNPs and asthma were observed. On the other hand, there were association between CHI3L1 and asthma observed in the majority of Caucasian populations. However, similar research has not been conducted in Taiwan. In contrast to preliminary studies, the investigators predict the rs4950928 G allele, and not the C allele, was found to be associated with asthma. The g.-247C/T polymorphism in the CHI3L1 promoter region is associated with the risk of atopy.

Study Type

Observational

Enrollment (Anticipated)

1

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
    • Taichung
      • 2 Yuh-Der Road, Taichung, Taiwan, 40447
        • Recruiting
        • China Medical University Hospital
        • Contact:

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 to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Taiwan

Description

Inclusion Criteria:

  • ages 20 to 60 years
  • asthma patients
  • atopy patients
  • control (non-asthma and non-atopy)

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

Cohorts and Interventions

Group / Cohort
Asthma
The relationship between single nucleotide polymorphisms of chitinase 3-like 1 gene, YKL-40 serum levels and adult asthma

Collaborators and Investigators

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

Sponsor

China Medical University Hospital

Investigators

  • Study Director: Chen Chia Hung, doctor, Partners

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

May 1, 2011

Primary Completion (Anticipated)

June 1, 2011

Study Completion (Anticipated)

December 1, 2013

Study Registration Dates

First Submitted

May 4, 2011

First Submitted That Met QC Criteria

May 5, 2011

First Posted (Estimate)

May 6, 2011

Study Record Updates

Last Update Posted (Estimate)

May 6, 2011

Last Update Submitted That Met QC Criteria

May 5, 2011

Last Verified

May 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DMR100-IRB-008

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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