Genetic Polymorphisms of Mannan-binding Lectin (MBL)and Serum Levels of MBL in Patients With Endometriosis

Completed

• Conditions: Endometriosis

• Registration Number: NCT01738932
• Lead Sponsor: University of Aarhus

Brief Summary

The purpose of the study is to investigate the possible association between low levels of MBL and the development of endometriosis

Detailed Description

Endometriosis is a chronic, inflammatory disease, affecting approximately 10% of the female population. The pathogenesis of endometriosis is still unclear, but several studies have indicated that the immune system is involved. It has been suggested that endometriosis should be considered an autoimmune disease, considering the findings of elevated levels of cytokines, decreased cell apoptosis, increased incidence of autoantibodies and a higher frequency of other autoimmune diseases in endometriosis patients. MBL participates in the innate immune defence by activating complement on the surfaces of microorganisms, but several studies have suggested that MBL is also involved in autoimmune diseases. The individual MBL level is highly variable due to a number of polymorphic sites in the structural gene and in the promoter region, and approximately 12 % of the normal population have very low serum MBL levels (\<100 ng/ml).

The possible association between MBL and endometriosis has been investigated in two small studies, in which no association was found. The aim of the present study is to investigate the prevalence of individuals with low serum levels of MBL and with genotypes associated with low MBL production in a larger group of endometriosis patients.

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2006-12
• Primary Completion: 2007-06
• Study Completion: 2007-06
• Status Verified: 2012-11
• Study First Submitted: 2012-11-28
• Study First Submitted QC: 2012-11-29
• Last Update Submitted: 2012-11-29
• Study First Posted: 2012-11-30
• Last Update Posted: 2012-11-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 100

Inclusion Criteria

• histologically verified endometriosis
• ASRM stage 2-4

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Exclusion Criteria

• pregnancy
• actual treatment with GnRh analog
• autoimmune diseases

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Frequency of individuals with s-MBL < 100 ng/ml	baseline
Frequency of individuals with MBL genotypes LXPA/O or O/O	baseline

Trial Locations

Locations (1)

Aarhus University Hospital, Department of Gynecology and Obstetrics; 🇩🇰 Aarhus, Denmark