Vitamin B-12 and Perinatal Health

Julia L Finkelstein1, Alexander J Layden2, Patrick J Stover2

  • 1Division of Nutritional Sciences, Cornell University, Ithaca, NY; and St. John's Research Institute, St. John's National Academy of Health Sciences, Bangalore, India jfinkelstein@cornell.edu.

Insights

Maternal vitamin B-12 deficiency is linked to serious pregnancy and infant health issues. More research is crucial to understand these links and guide public health interventions for better outcomes.

Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Nutritional Science

Background:

  • Vitamin B-12 deficiency (<148 pmol/L) is prevalent and linked to adverse maternal and neonatal outcomes.
  • Adequate vitamin B-12 is critical for neural myelination, fetal brain development, and growth.
  • Maternal insufficiency (<200 pmol/L) can cause irreversible infant developmental impairments.

Purpose of the Study:

  • To review existing evidence linking maternal vitamin B-12 status to perinatal outcomes.
  • To highlight the need for further research into the causal mechanisms of these associations.

Main Methods:

  • Literature review of studies examining maternal vitamin B-12 status and perinatal outcomes.
  • Analysis of evidence from prospective studies and randomized trials.

Main Results:

  • Few prospective studies and only one randomized trial have investigated vitamin B-12 supplementation during pregnancy.
  • Existing evidence suggests a strong association between vitamin B-12 deficiency and adverse pregnancy and neonatal outcomes.

Conclusions:

  • The precise role of vitamin B-12 in the etiology of adverse perinatal outcomes requires further elucidation.
  • Understanding these mechanisms is essential for developing effective public health interventions.

Related Concept Videos

Vitamins01:30

Vitamins

Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced...
3.0K
Development of the Oral Microbiota01:28

Development of the Oral Microbiota

The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
37
Development of Immunocompetence01:22

Development of Immunocompetence

The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
1.2K
Development of Human Microbiota01:30

Development of Human Microbiota

The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from...
36
Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
4.5K
Parentral Nutrition: Centeral and Peripheral Parental Nutrition01:27

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption.
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
1.6K