The effect of vernal solar UV radiation on serum 25-hydroxyvitamin D concentration depends on the baseline level : observations from a high latitude in Finland

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dc.contributor.author Karppinen, Toni
dc.contributor.author Ala-Houhala, Meri
dc.contributor.author Ylianttila, Lasse
dc.contributor.author Kautiainen, Hannu
dc.contributor.author Lakkala, Kaisa
dc.contributor.author Hannula, Henna-Reetta
dc.contributor.author Turunen, Esa
dc.contributor.author Viljakainen, Heli
dc.contributor.author Reunala, Timo
dc.contributor.author Snellman, Erna
dc.date.accessioned 2017-06-22T08:20:01Z
dc.date.available 2017-06-22T08:20:01Z
dc.date.issued 2017
dc.identifier.citation Karppinen , T , Ala-Houhala , M , Ylianttila , L , Kautiainen , H , Lakkala , K , Hannula , H-R , Turunen , E , Viljakainen , H , Reunala , T & Snellman , E 2017 , ' The effect of vernal solar UV radiation on serum 25-hydroxyvitamin D concentration depends on the baseline level : observations from a high latitude in Finland ' , International Journal of Circumpolar Health , vol. 76 , 1272790 . https://doi.org/10.1080/22423982.2016.1272790
dc.identifier.other PURE: 85907930
dc.identifier.other PURE UUID: 595d715d-f5e6-4958-a968-b3944b6af91d
dc.identifier.other WOS: 000396157500001
dc.identifier.other Scopus: 85029694794
dc.identifier.other ORCID: /0000-0002-7486-3437/work/34467521
dc.identifier.uri http://hdl.handle.net/10138/193765
dc.description.abstract Humans obtain vitamin D from conversion of 7-dehydrocholesterol in the skin by ultraviolet B (UVB) radiation or from dietary sources. As the radiation level is insufficient in winter, vitamin D deficiency is common at higher latitudes. We assessed whether vernal solar UVB radiation at latitudes 61 degrees N and 67 degrees N in Finland has an impact on serum 25-hydroxyvitamin D [S-25(OH) D] concentrations. Twenty-seven healthy volunteers participated in outdoor activities in snow-covered terrain for 4-10 days in March or April, with their face and hands sun-exposed. The personal UVB doses and S-25(OH) D levels were monitored. A mean UVB dose of 11.8 standard erythema doses (SED) was received during an average of 12.3 outdoor hours. The mean S-25(OH) D concentration in subjects with a baseline concentration below 90.0 nmol/L (n=13) increased significantly, by 6.0 nmol/L from an initial mean of 62.4 nmol/L (p en
dc.format.extent 7
dc.language.iso eng
dc.relation.ispartof International Journal of Circumpolar Health
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 25(OH)D
dc.subject vitamin D
dc.subject ultraviolet
dc.subject UVB
dc.subject spring
dc.subject VITAMIN-D PRODUCTION
dc.subject HUMAN-SKIN
dc.subject EXPOSURE
dc.subject OZONE
dc.subject SNOW
dc.subject ALBEDO
dc.subject COHORT
dc.subject WOMEN
dc.subject FACE
dc.subject MASS
dc.subject 3142 Public health care science, environmental and occupational health
dc.title The effect of vernal solar UV radiation on serum 25-hydroxyvitamin D concentration depends on the baseline level : observations from a high latitude in Finland en
dc.type Article
dc.contributor.organization Department of General Practice and Primary Health Care
dc.contributor.organization Clinicum
dc.contributor.organization University of Helsinki
dc.contributor.organization Children's Hospital
dc.contributor.organization HUS Children and Adolescents
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1080/22423982.2016.1272790
dc.relation.issn 1239-9736
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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