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AuthorGanji, Vijay
AuthorKafai, Mohammad
Available date2018-02-19T09:01:27Z
Publication Date2018-01-12
Publication NameNutrientsen_US
Identifierhttp://dx.doi.org/10.3390/nu10010074
CitationPopulation Reference Values for Serum Methylmalonic Acid Concentrations and Its Relationship with Age, Sex, Race-Ethnicity, Supplement Use, Kidney Function and Serum Vitamin B12 in the Post-Folic Acid Fortification Period. Ganji V, Kafai MR. Nutrients. 2018 Jan 12;10(1). pii: E74. doi: 10.3390/nu10010074.
ISSN2072-6643
URIhttp://hdl.handle.net/10576/6402
AbstractSerum methylmalonic acid (MMA) is elevated in vitamin B-12 deficiency and in kidney dysfunction. Population reference values for serum MMA concentrations in post-folic acid fortification period are lacking. Aims of this study were to report the population reference values for serum MMA and to evaluate the relation between serum MMA and sex, age, race-ethnicity, kidney dysfunction and vitamin B-12. We used data from three National Health and Nutrition Examination Surveys, 1999-2000, 2001-2002 and 2003-2004 conducted after folic acid fortification commenced (= 18,569). Geometric mean MMA was ≈22.3% higher in non-Hispanic white compared to non-Hispanic black (141.2 vs. 115.5 nmol/L) and was ≈62.7% higher in >70 years old persons compared to 21-30 years old persons (196.9 vs. 121.0 nmol/L). Median serum MMA was ≈28.5% higher in the 1st the quartile of serum vitamin B-12 than in the 4th quartile of serum vitamin B-12 and was ≈35.8% higher in the 4th quartile of serum creatinine than in the 1st quartile of serum creatinine. Multivariate-adjusted serum MMA concentration was significantly associated with race-ethnicity (< 0.001) and age (< 0.001) but not with sex (= 0.057). In this large US population based study, serum MMA concentrations presented here reflect the post-folic acid fortification scenario. Serum MMA concentrations begin to rise at the age of 18-20 years and continue to rise afterwards. Age-related increase in serum MMA concentration is likely to be due to a concomitant decline in kidney function and vitamin B-12 status.
Languageen
PublisherMDPI
SubjectMMA
SubjectNHANES
SubjectNational Health and Examination Survey
Subjectage
Subjectcobalamin
Subjectcreatinine
Subjectmethylmalonic acid
Subjectrace-ethnicity
Subjectreference values
Subjectvitamin B-12
TitlePopulation Reference Values for Serum Methylmalonic Acid Concentrations and Its Relationship with Age, Sex, Race-Ethnicity, Supplement Use, Kidney Function and Serum Vitamin B12 in the Post-Folic Acid Fortification Period.
TypeArticle
Pagination1-13
Issue Number1
Volume Number10


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