sun protection & vitamin d controversy
DESCRIPTION
Sun Protection & Vitamin D Controversy. Dr Jackie Dyche. Photoprotection. Sunlight main factor for BCC & SCC Association of MM & burning in childhood Strict protection from UVR recommended BUT 90% of Vit D has to be formed in the skin through the action of the sun. UV Light & Melanoma. - PowerPoint PPT PresentationTRANSCRIPT
Sun Protection & Vitamin D Controversy
Sun Protection & Vitamin D Controversy
Dr Jackie DycheDr Jackie Dyche
PhotoprotectionPhotoprotection
Sunlight main factor for BCC & SCC Association of MM & burning in
childhood Strict protection from UVR
recommended BUT 90% of Vit D has to be formed
in the skin through the action of the sun
Sunlight main factor for BCC & SCC Association of MM & burning in
childhood Strict protection from UVR
recommended BUT 90% of Vit D has to be formed
in the skin through the action of the sun
UV Light & MelanomaUV Light & Melanoma
Body site distribution Sunnier European countries have
lower mortality Diagnostic drift responsible for
reported increase in cases
Body site distribution Sunnier European countries have
lower mortality Diagnostic drift responsible for
reported increase in cases
Vitamin D deficiencyVitamin D deficiency
Cancer: breast, colon, prostate, ovary, lymphoma
Cardiovascular: MI, High BP Autoimmune: MS, Type 1 DM Infection: TB Allergy: Asthma Rheumatic disease: Rh A Bone Health All cause mortality
Cancer: breast, colon, prostate, ovary, lymphoma
Cardiovascular: MI, High BP Autoimmune: MS, Type 1 DM Infection: TB Allergy: Asthma Rheumatic disease: Rh A Bone Health All cause mortality
Vitamin D deficiencyVitamin D deficiency
Definition 20-30ng/ml Widespread At risk groups: elderly, obese,
photosensitive, dark skin,
Definition 20-30ng/ml Widespread At risk groups: elderly, obese,
photosensitive, dark skin,
Vitamin D & the SkinVitamin D & the Skin
Maximal production with UVB Active metabolite Calcitriol - role in cell
growth & cancer prevention Protective effect of less intense solar
radiation can outweigh its mutagenic effect
Maximal production with UVB Active metabolite Calcitriol - role in cell
growth & cancer prevention Protective effect of less intense solar
radiation can outweigh its mutagenic effect
ConclusionsConclusions
Moderation of photoprotective advice?
Vitamin D supplementation in at-risk groups
Moderation of photoprotective advice?
Vitamin D supplementation in at-risk groups
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