Tanning predicts bone mass but not structure in adolescent females living in Hawaii

Bibliographic Data

ID19460708
AuthorsDaniel L Osborne (University of Nebraska–Lincoln, corresponding author), Connie M Weaver (0000-0002-5450-9609, Purdue University West Lafayette), Linda D Mcabe (Purdue University West Lafayette), George M McCabe (Purdue University West Lafayette), Rachel Novotny (0000-0002-9503-9471, University of Hawaiʻi at Mānoa), Carol J Boushey (0000-0001-7517-787X, Purdue University West Lafayette), Carol Boushey, Dennis A Savaiano (0000-0001-8872-6276, Purdue University West Lafayette)
Year2011
Volume23
Issue4
Pages470-478
Publication date2011-07-01
Open AccessYes
TypeARTICLE
VenueAmerican Journal of Human Biology (JOURNAL)
Journal identifiersISSN: 1042-0533 • E-ISSN: 1520-6300
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ajhb.21158
PMID21495109
PMCIDPMC3132867
OpenAlexW1992340773
LanguageEN
References cited57

OBJECTIVES: To evaluate the relationship between facultative skin pigmentation, which predicts circulating levels of plasma 25-hydroxymitamin D, and several measures of bone mass and structure in a cross sectional sample of adolescent females living in Hawaii. METHODS: Our sample was composed of adolescent females (n = 94) living in Hawaii where seasonal sun exposure is minimal, and who self-identified as either white (n = 16) or Asian (n = 78). Bone mineral content (BMC) of the total body, the lumbar spine and the hip, and cross sectional area (CSA) and section modulus (Z) at the proximal femur were quantified using DXA. Facultative skin pigmentation was measured at the forehead and non-facultative skin pigmentation was measured at the inner arm using a Chroma Meter CR-200b colorimeter. RESULTS: There were no significant differences between ethnic groups in terms of skin pigmentation. The difference between a* taken at the forehead and inner upper arm significantly predicted BMC at the lumbar spine, total hip, and total body. Other measures of skin pigmentation were not significant predictors of any other measure of skeletal integrity. CONCLUSIONS: The difference between facultative and non-facultative skin pigmentation for a* is a significant predictor BMC, but not bone structure. Our findings are limited by an inability to control for long term UVA and UVB exposure and lack of a measure of serum 25(OH)D status. Further research is needed to examine these questions, particularly in populations who live at high latitudes where a winter season limits vitamin D(3) synthesis

Biology · Facultative · Bone health and osteoporosis research · Medicine · Skin Protection and Aging · Vitamin D Research Studies · Anatomy · Ecology

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