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Koebnick, C., Heins, U.A., Dagnelie, P.C., Wickramasinghe, S.N., Ratnayaka, I.D., Hothorn, T., Pfahlberg, A.B., Hoffmann, I., Lindemans, J., Leitzmann, C., et al. (2002) Longitudinal Concentrations of Vitamin B(12) and Vitamin B(12)-Binding Proteins during Uncomplicated Pregnancy. Clinical Chemistry, 48, 928-933.

has been cited by the following article:

• TITLE: The Impact of Third Trimester Maternal Serum Vitamin B12 and Folate Status on Fetal Birth Weight. Is Maternal Serum Homocysteine a Predictor of Low Birth Weight Infants?

  AUTHORS: Mohamed Abdelaziz Youssry, Ahmed Mohamed Radwan, Mohamed Amin Gebreel, Tabarak Ahmed Patel

  KEYWORDS: Low Birth Weight, Vitamin B12, Homocysteine

  JOURNAL NAME: Open Journal of Obstetrics and Gynecology, Vol.7 No.11, October 19, 2017

  ABSTRACT: Objective: The aim of this study is to evaluate vitamin B12, folate, and homocysteine status in pregnant women in the third trimester of pregnancy and their relationship to fetal birth weight and their correlation to corresponding neonatal cord blood levels, and in addition, to evaluate the possibility of maternal serum homocysteine level as a predictor of low birth weight infants. Subjects and Methods: In this cross-sectional study, a total of two hundred pregnant women in third trimester (≥28 weeks) were recruited. After a detailed obstetrical and medical history, and clinical assessment, participants were subdivided into two groups: Group (A)—pregnant women who delivered average birth weight (ABW) infants and Group (B) for those who delivered low birth weight (LBW) infants between completed 37 and 42 weeks. Results: Vitamin B12 deficiency was observed in 24.1% of the total cohort. The mean vitamin B12 level was significantly lower in group (B) compared to group (A) (195.2 ± 38.9 vs. 225.9 ± 66.59 respectively P = 0.008). The mean level of homocysteine for women in group (B) was significantly higher than those determined from women in group (A) (9.10 ± 5.9 vs. 7.6 ± 3.83 respectively, P = 0.042). On the other hand, the mean folate levels showed statistically insignificant differences between both groups. The mean cord vitamin B12 level was significantly lower in LBW infants in comparison to ABW infants (277 ± 61.93 vs. 312.03 ± 81.87 respectively, P = 0.015), while the mean level of cord homocysteine for LBW infants was significantly higher than those levels determined from ABW infants (7.9 ± 3.79 vs. 6.6 ± 2.09 respectively P = 0.0049). Conclusion: Maternal micronutrients particularly cobalamin deficiency could be significant risk for LBW infants. Hyperhomocysteinemia has been shown to be a predictor for adverse pregnancy outcomes particularly LBW.