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researcher left the institution study will not continue
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| Name | Class |
|---|---|
| Children's Hospital Colorado | OTHER |
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This study involves the collection ocular lens tissue from individuals with Down syndrome and age-matched controls at the time of cataract surgery.
Individuals with Down syndrome have an increased rate of cataract. The reason for this increase is unclear. Normally, once cataracts become a significant impairment, an ophthalmologist will determine when cataract surgery should be performed. When this surgery is performed, cataractous tissues are cut out and discarded with medical waste. In this study, these tissue will be collected and protein analysis performed to determine what changes in different proteins are found in Down syndrome lenses as compared to normal cataractous lenses.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Down syndrome | Individuals with Down syndrome undergoing cataract surgery. |
| |
| Control | Age-matched controls undergoing cataract surgery. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| cataract surgery | Procedure | tissue collection. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Change in protein composition | western blot analysis of proteins from cataractous tissue | one week after collection of tissue |
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Inclusion Criteria:
Exclusion Criteria:
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Individuals with Down syndrome having cataract surgery or age-matched control.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Children's Hospital of Colorado | Aurora | Colorado | 80045 | United States |
Age, trisomy status, protein concentration levels
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| ID | Term |
|---|---|
| D002386 | Cataract |
| D004314 | Down Syndrome |
| ID | Term |
|---|---|
| D007905 | Lens Diseases |
| D005128 | Eye Diseases |
| D008607 | Intellectual Disability |
| D019954 | Neurobehavioral Manifestations |
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| ID | Term |
|---|---|
| D002387 | Cataract Extraction |
| ID | Term |
|---|---|
| D054140 | Refractive Surgical Procedures |
| D013508 | Ophthalmologic Surgical Procedures |
| D013514 | Surgical Procedures, Operative |
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cataractous tissue removed at time of cataract surgery
| D009461 |
| Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D000015 | Abnormalities, Multiple |
| D000013 | Congenital Abnormalities |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |
| D025063 | Chromosome Disorders |
| D030342 | Genetic Diseases, Inborn |