Vitamin D deficiency: Difference between revisions
| Line 16: | Line 16: | ||
*Inadequate sunlight exposure | *Inadequate sunlight exposure | ||
*Disorders limiting vitamin D absorption | *Disorders limiting vitamin D absorption | ||
*Conditions preventing vitamin D conversion into active metabolites (i.e. [[ | *Conditions preventing vitamin D conversion into active metabolites (i.e. [[Renal Failure]]) | ||
==Clinical Features== | ==Clinical Features== | ||
Revision as of 22:49, 12 January 2017
Background
- AKA: Hypovitaminosis D
- Vitamin D
- Lipid soluble
- Acts as a hormone
- Stimulates intestinal calcium absorption
- Maintains adequate phosphate levels for bone development
- Regulates cell growth proliferation and apoptosis
- Modulates the immune system
- Deficiency leads to impaired bone mineralization and disease such as:
- Rickets in children
- Osteomalacia and Osteoporosis in adults
Etiology
- Inadequate intake
- Inadequate sunlight exposure
- Disorders limiting vitamin D absorption
- Conditions preventing vitamin D conversion into active metabolites (i.e. Renal Failure)