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INSTITUTO POLITECNICO NACIONALCELEX
Escuela Superior de Medicina
Teacher: Jaime Valdez
Speakers:.
Juárez Cárdenas María IsabelSánchez Noguez Edna Aidee
Vitamin D deficiency
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CONTENTS1.DEFINITION2.FUNCTIONS3.MAIN SOURCES4.DEFICIENCY5.RICKETS6.SYMPTONS 7.TREATMENT
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1. VITAMIN D DEFINITION• Edward Mellanby discovered vitamin D.• Is a Fat-soluble vitamins.• Several forms of vitamin D have been discovered:
Vitamin D 2Ergocalciferol
Vitamin D 3Cholecalciferol
Vitamin D 422-dihydroergocalciferol
Vitamin D 5Sitocalciferol
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2. FUNCTIONS• Vitamin D is stored in…
• Maintain levels of calcium and phosphorus normal.• Participate in cell growth and maturation.• Strengthens the immune system helping to prevent
infection.
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3. MAIN SOURCES
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• Vitamin D deficiency can occur when:– Daily intake is less than
the recommended levels.
– The kidney can not convert vitamin D into the active form
– sun exposure is insufficient
– Can not absorb properly at the digestive tract.
4. DEFICIENCY
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• The vitamin D deficiency resulting in decreased bone mineralization, leading to soft in bone diseases such as rickets in children and osteomalacia in adults, even associated with the onset of osteoporosis.
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5. RICKETS
• Is characterized by skeletal deformities.
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6. SYMPTOMS• Skeletal deformities• Bowlegs• Forward projection of the
breastbone (pigeon chest)• Bumps in the rib cage
(rachitic rosary)• Skull asymmetrical or odd
shape• Spinal deformities• Dental deformities• Delayed tooth formation
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7. MEDICATION• Can be treated gradually over several
months or one dose of a single day. • Based on a clinical trial found that a single
dose of 600,000 IU of vitamin D3 orally was comparable to a dose of 20,000 IU of vitamin D3 per day orally for 30 days.
• The incremental dose may be 125-250 micrograms (5.000 to 10.000 IU), which are ingested daily for two to three months.
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• A single dose of one day may be 15,000 micrograms (600,000 IU) of vitamin D, which is ingested orally in 4-6 divided doses. Intramuscular injection is also an alternative for a dose of a single day.
• It is recommended that exposure to moderate amounts of sunlight.