Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-6-7
pubmed:abstractText
Plasma lipoprotein(a) [Lp(a)] levels are largely genetically determined by sequences linked to the gene encoding apolipoprotein(a) [apo(a)], the distinct protein component of Lp(a). Apo(a) is highly polymorphic in length due to variation in the numbers of a sequence encoding the apo(a) kringle 4 domain, and plasma levels of Lp(a) are inversely correlated with apo(a) size. In 2 racially homogeneous Bantu populations from Tanzania differing in their dietary habits, we found that median plasma levels of Lp(a) were 48% lower in those living on a fish diet than in those living on a vegetarian diet. Considering the relationship between apo(a) size and Lp(a) plasma concentration, we have extensively evaluated apo(a) isoform distribution in the 2 populations to determine the impact of apo(a) size in the determination of Lp(a) values. The majority of individuals (82% of the fishermen and 80% of the vegetarians) had 2 expressed apo(a) alleles. Additionally, the fishermen had a high frequency of large apo(a) isoforms, whereas a higher frequency of small isoforms was found in the vegetarians. When subjects from the 2 groups were matched for apo(a) phenotype, the median Lp(a) value was 40% lower in Bantus on the fish diet than in those on the vegetarian diet. A significant inverse relationship was also found between plasma n-3 polyunsaturated fatty acids and Lp(a) levels (r=-0.24, P=0.01). The results of this study are consistent with the concept that a diet rich in n-3 polyunsaturated fatty acids, and not genetic differences, is responsible for the lower plasma levels of Lp(a) in the fish-eating Bantus and strongly suggest that a sustained fish-based diet is able to lower plasma levels of Lp(a).
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1079-5642
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1250-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:10323776-Adult, pubmed-meshheading:10323776-African Continental Ancestry Group, pubmed-meshheading:10323776-Animals, pubmed-meshheading:10323776-Apolipoproteins A, pubmed-meshheading:10323776-Arachidonic Acids, pubmed-meshheading:10323776-Cholesterol, pubmed-meshheading:10323776-Diet, Vegetarian, pubmed-meshheading:10323776-Ethnic Groups, pubmed-meshheading:10323776-Fatty Acids, Omega-3, pubmed-meshheading:10323776-Female, pubmed-meshheading:10323776-Fishes, pubmed-meshheading:10323776-Food Habits, pubmed-meshheading:10323776-Humans, pubmed-meshheading:10323776-Lipoprotein(a), pubmed-meshheading:10323776-Male, pubmed-meshheading:10323776-Meat, pubmed-meshheading:10323776-Occupations, pubmed-meshheading:10323776-Phenotype, pubmed-meshheading:10323776-Protein Isoforms, pubmed-meshheading:10323776-Tanzania, pubmed-meshheading:10323776-Triglycerides
pubmed:year
1999
pubmed:articleTitle
Fish intake, independent of apo(a) size, accounts for lower plasma lipoprotein(a) levels in Bantu fishermen of Tanzania: The Lugalawa Study.
pubmed:affiliation
Department of Medicine, University of Washington, Seattle, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't