Clinical trial NCT03272022: Micronutrient Status During Pregnancy
Official title: Micronutrient Status in Pregnant and Lactating Women and Their Infants
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Deficiency Vitamins
Keywords: cobalamin, folate
Lead sponsor: Haukeland University Hospital
Sponsor class: OTHER
First posted: 2017-09-05
Enrollment: 272
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 40
Standard ages: ADULT
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: healthy never-pregnant (n =158) and pregnant women (n=114) and their infants (n=114)

Brief summary: An adequate micronutrient status during fetal life and infancy is important for optimal development. Dietary practices during pregnancy, lactation and infancy vary among populations and there is today no clear agreement on what constitutes the best diet, including micronutrient supplementation, during this period. There is consequently no clear agreement on what constitutes an optimal biochemical micronutrient status in mothers and infants. Due to substantial physiological changes in plasma volume, hormones, transport proteins and organ function during these periods, the ordinary reference levels or cut off levels used for biochemical assessment of micronutrient status are unsuited to these groups of patients.

The objective of the study is to establish cut off levels for important vitamins and trace elements during pregnancy, lactation and infancy in order to ensure an optimal infant neurodevelopment and to study how micronutrient status influence the immunosystem.

Detailed description: The investigators have analyzed micronutrients, including all vitamins and trace elements and related aminoacids and markers of cellular immunoactivation in 160 fertile, unpregnant women, 115 pregnant women from pregnancy week 18, throughout pregnancy and the first 6 postpartum months and their infant at 6 months. Infant gross motor development is associated with micronutrient status, so the investigators will relate gross motor development at 6 months to maternal micronutrient status during pregnancy and postpartum, in order to establish relevant cut off levels for micronutrients and related biomarkers.

Eligibility criteria: Inclusion Criteria:

* healthy never-pregnant and pregnant women

Exclusion Criteria:

chronic illness-

Primary outcomes:
measure: Change in micronutrient status during pregnancy and lactation
timeFrame: The investigators will study change in micronutrients during pregnancy and lactation
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
affiliation: Haukeland University Hospital
name: Gunnar Mellgren, MD, PhD
role: STUDY_DIRECTOR
References:
citation: Green R, Allen LH, Bjorke-Monsen AL, Brito A, Gueant JL, Miller JW, Molloy AM, Nexo E, Stabler S, Toh BH, Ueland PM, Yajnik C. Vitamin B12 deficiency. Nat Rev Dis Primers. 2017 Jun 29;3:17040. doi: 10.1038/nrdp.2017.40.
citation: Torsvik IK, Ueland PM, Markestad T, Midttun O, Bjorke Monsen AL. Motor development related to duration of exclusive breastfeeding, B vitamin status and B12 supplementation in infants with a birth weight between 2000-3000 g, results from a randomized intervention trial. BMC Pediatr. 2015 Dec 18;15:218. doi: 10.1186/s12887-015-0533-2.
citation: Torsvik I, Ueland PM, Markestad T, Bjorke-Monsen AL. Cobalamin supplementation improves motor development and regurgitations in infants: results from a randomized intervention study. Am J Clin Nutr. 2013 Nov;98(5):1233-40. doi: 10.3945/ajcn.113.061549. Epub 2013 Sep 11.
citation: Bjorke-Monsen AL, Torsvik I, Saetran H, Markestad T, Ueland PM. Common metabolic profile in infants indicating impaired cobalamin status responds to cobalamin supplementation. Pediatrics. 2008 Jul;122(1):83-91. doi: 10.1542/peds.2007-2716.
citation: Bjorke Monsen AL, Ueland PM, Vollset SE, Guttormsen AB, Markestad T, Solheim E, Refsum H. Determinants of cobalamin status in newborns. Pediatrics. 2001 Sep;108(3):624-30. doi: 10.1542/peds.108.3.624.
citation: Bjorke-Monsen AL, Varsi K, Averina M, Brox J, Huber S. Perfluoroalkyl substances (PFASs) and mercury in never-pregnant women of fertile age: association with fish consumption and unfavorable lipid profile. BMJ Nutr Prev Health. 2020 Nov 4;3(2):277-284. doi: 10.1136/bmjnph-2020-000131. eCollection 2020 Dec.
citation: Varsi K, Ueland PM, Torsvik IK, Bjorke-Monsen AL. Maternal Serum Cobalamin at 18 Weeks of Pregnancy Predicts Infant Cobalamin Status at 6 Months-A Prospective, Observational Study. J Nutr. 2018 May 1;148(5):738-745. doi: 10.1093/jn/nxy028.