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| Name | Class |
|---|---|
| Tampere University Hospital | OTHER |
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The investigators investigated the ability of narrowband ultraviolet B (nbUVB) treatment in the maintenance of vitamin D levels achieved during the summer in Finland. The investigators randomized 37 subjects into groups of 17 and 18 subjects. The other group received 2 standard erythema doses (SED) nbUVB exposure every other week until week 24, and serum 25(OH)D levels were measured at the onset and at weeks 6, 14, 20, 26 and 30. The control group was not illuminated and serum samples were analyzed correspondingly. Punch biopsies were taken at the onset and at week 14 for CYP27A1 and CYP27B1 enzyme expression level analyses.
The investigators investigated the ability of narrowband ultraviolet B (nbUVB) treatment in the maintenance of vitamin D levels achieved during the summer in Finland. The investigators randomized 37 subjects into groups of 17 and 18 subjects. The other group received 2 standard erythema doses (SED) nbUVB exposure every other week until week 24, and serum 25(OH)D levels were measured at the onset and at weeks 6, 14, 20, 26 and 30. The control group was not illuminated and serum samples were analyzed correspondingly. 6mm punch biopsies were taken at the onset and at week 14 for CYP27A1 and CYP27B1 enzyme expression level analyses.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| nbUVB | Experimental | 2 SED dose of nbUVB will be given every other week for this intervention group. |
|
| control | No Intervention | No nbUVB illumination will be given for the control group. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| nbUVB | Radiation | 2 SED nbUVB exposure will be given every other week |
|
| Measure | Description | Time Frame |
|---|---|---|
| 25(OH)D level | Serum 25(OH)D levels were measured at the onset and at weeks 6, 14, 20, 26 and 30. | up to 30 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| CYP27A1 and CYP27B1 enzyme expression levels | CYP27A1 and CYP27B1 enzyme expression levels will be analysed from 6mm punch biopsies at the onset and at week 14. | up to 14 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Toni T Karppinen, MD | Päijät Häme Central Hospital | Principal Investigator |
| Erna Snellman, professor | Tampere University Hospital | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Päijät-Häme Central Hospital | Lahdenkylä | Pirkanmaa | 15850 | Finland | ||
| Tampere University Hospital |
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| ID | Term |
|---|---|
| D014808 | Vitamin D Deficiency |
| D019294 | Xanthomatosis, Cerebrotendinous |
| ID | Term |
|---|---|
| D001361 | Avitaminosis |
| D003677 | Deficiency Diseases |
| D044342 | Malnutrition |
| D009748 | Nutrition Disorders |
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| Tampere |
| Pirkanmaa |
| 33521 |
| Finland |
| D009750 |
| Nutritional and Metabolic Diseases |
| D008052 | Lipid Metabolism, Inborn Errors |
| D008661 | Metabolism, Inborn Errors |
| D030342 | Genetic Diseases, Inborn |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |
| D052439 | Lipid Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D014973 | Xanthomatosis |