Association between birth outcomes and aflatoxin B1 biomarker blood levels in pregnant women in Kumasi, Ghana.
OBJECTIVE
To investigate the association between birth outcomes and blood levels of aflatoxin B(1) (AFB1)-lysine adduct in pregnant women in Kumasi, Ghana.


METHODS
A cross-sectional study of 785 pregnant women attending antenatal clinic was conducted. Aflatoxin B(1) (AFB(1))-lysine adduct levels were determined by high performance liquid chromatography (HPLC) on blood taken after delivery. The birth outcomes considered were small for gestation age, low birthweight, preterm delivery and stillbirth. Participants were divided into quartiles based on the distribution of aflatoxin B(1)-lysine adducts in pg/mg albumin ('low': <or=2.67, 'moderate': >2.67 to <or=4.97, 'high': >4.97 to <or=11.34, 'very high': >11.34). Statistical analysis involved models that included socio-demographic variables and other potential confounders.


RESULTS
The average AFB(1)-lysine adduct level in maternal serum was 10.9 +/- 19.00 pg/mg albumin (range = 0.44-268.73 pg/mg). After adjusting for socio-demographic variables and potential confounding factors, participants in the highest AFB(1)-lysine quartile with 'very high' AFB(1)-lysine level (>11.34 pg/mg) were more likely to have low birthweight babies (OR, 2.09; 95% CI, 1.19-3.68), and showed a trend of increasing risk for low birthweight (P(trend) = 0.007) compared to participants in the lowest quartile.


CONCLUSIONS
This study adds to the growing body of evidence that aflatoxins may increase the risk of adverse birth outcomes. The findings have implications for targeted nutritional education of pregnant women in areas with high levels of aflatoxin contamination of foods.
Shuaib
Faisal M B
FM
Department of Epidemiology, Ryals School of Public Health, University of Alabama at Birmingham, AL, USA.
Jolly
Pauline E
PE
Ehiri
John E
JE
Yatich
Nelly
N
Jiang
Yi
Y
Funkhouser
Ellen
E
Person
Sharina D
SD
Wilson
Craig
C
Ellis
William O
WO
Wang
Jia-Sheng
JS
Williams
Jonathan H
JH
D000328:Adult; D016604:Aflatoxin B1 / Q000097:blood*; D015415:Biomarkers / Q000097:blood; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007236:Infant, Small for Gestational Age; D011042:Poisons / Q000097:blood*; D011247:Pregnancy / Q000097:blood*; D011256:Pregnancy Outcome; D012959:Socioeconomic Factors; D050497:Stillbirth; D055815:Young Adult
D015415:Biomarkers; D011042:Poisons; D016604:Aflatoxin B1