Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1993-4-26
pubmed:abstractText
We studied the seasonal variation in serum concentrations of beta-carotene and alpha-tocopherol (HPLC) in 17,247 Finnish men who smoked. Month of blood sampling was a statistically significant determinant of serum concentration of beta-carotene in a regression model including age, body mass index, alcohol and fat intakes, total serum cholesterol, and daily cigarettes as covariates. The serum concentrations were lowest in April-June and highest in October-November. The 1.5-fold increase in the serum concentration of beta-carotene during the fall reflects the seasonality of dietary sources of carotenoids in Finland. The serum concentrations of alpha-tocopherol demonstrated no seasonal variation but remained close to 27.6 mumol/L throughout the year. The results indicate that the seasonal variation of serum concentrations of beta-carotene should be taken into account in long-term studies in which comparison of groups or individuals is based on serum concentrations.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0002-9165
pubmed:author
pubmed:issnType
Print
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
551-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Seasonal variation of serum concentrations of beta-carotene and alpha-tocopherol.
pubmed:affiliation
National Public Health Institute, Helsinki, Finland.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.