BCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAF
1
Pre-PregnancyPregnancyPost-Partum
2
StudyNumber1st TriWk 13
pmol/l
Wk 18
pmol/l
2nd TriWk 24
pmol/l
Wk 32
pmol/l
Wk 36
pmol/
Wk 39
pmol/l
Wk 8
pmol/l
Notes
3
4
Schroder, 2019, CanadaB12 supplementation: Common
5
Serum B12596 / 640Unknown216198
6
HoloTranscobalamin587 / 567Unknown8477
7
8
Greibe, 2011, DenmarkB12 supplementation: Unknown
9
Serum B1227Unknown297244217
10
HoloTranscobalamin27Unknown565360
11
12
Morkbak, 2007, DenmarkB12 supplementation: Unknown
13
Serum B12140Unknown230170170310
14
HoloTranscobalamin140Unknown79767993
15
16
References
17
Greibe E, Andreasen BH, Lildballe DL, Morkbak AL, Hvas AM, Nexo E. Uptake of cobalamin and markers of cobalamin status: a longitudinal study of healthy pregnant women. Clin Chem Lab Med. 2011 Nov;49(11):1877-82.
18
Morkbak AL, Hvas AM, Milman N, Nexo E. Holotranscobalamin remains unchanged during pregnancy. Longitudinal changes of cobalamins and their binding proteins during pregnancy and postpartum. Haematologica. 2007 Dec;92(12):1711-2.
19
Schroder TH, Tan A, Mattman A, Sinclair G, Barr SI, Vallance HD, Lamers Y. Reference intervals for serum total vitamin B12 and holotranscobalamin concentrations and their change points with methylmalonic acid concentration to assess vitamin B12 status during early and mid-pregnancy. Clin Chem Lab Med. 2019 Oct 25;57(11):1790-1798.
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21