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Role of Polymorphisms in the IL-1 Gene Cluster

NCT00346541 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 400

Last updated 2006-06-30

No results posted yet for this study

Summary

Glaucoma, an optic neuropathy characterized by progressive visual field loss, is the leading cause of irreversible blindness worldwide. The condition has a substantial heritable basis, as illustrated by the numerous loci and genes identified to date, and the large proportion of patients having a family history.

Interleukin-1 (Il-1) is an important mediator of inflammation. There are 2 pro-inflammatory cytokines, Il-1 alpha and Il-1 beta. The genes encoding Il-1 are located within a 430kb region on chromosome 2q14.2. The role of Il-1 in glaucoma is a subject of recent interest. It has been shown that Il-1, produced endogenously by glaucomatous cells, inhibits the apoptotic response to oxidative stress, and Il-1 has also been reported to increase outflow facility by stimulating the \_expression of matrix metalloproteinase enzymes, which in turn reduces extra cellular resistance. Recently, polymorphisms in Il-1 (particularly +3953T of the Il-1 β) were found to reduce the risk of primary open angle glaucoma. In this pilot study, we aim to investigate the role of Il-1 polymorphisms in both normal tension and high pressure glaucoma in our glaucoma patients. Both open and closed angle glaucoma will be studied. This is a pilot study of the role of immune system related polymorphisms and depending on the results, we may embark on a larger investigation of other immune genes in glaucoma

Conditions

Sponsors & Collaborators

  • Singapore National Eye Centre

    lead OTHER_GOV

Principal Investigators

  • Tin Aung, PHD, FRCS · Singapore Eye Research Institute

Eligibility

Min Age
40 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2005-07-31
Completion
2006-06-30

Countries

  • Singapore

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00346541 on ClinicalTrials.gov