Why Is Mom Stressed: Homeorhesis as the Potential Problem and Nicotinamide Riboside as the Potential Solution.
Level 5 - mechanism / opinion, no new human data
Commentary discussing mechanism-based preclinical animal (mouse) research without human clinical data.
PubMed 31452603 · doi:10.1177/1179069519869679
What was done
The authors discuss homeorhetic resource allocation during mammalian lactation and summarize findings from mouse models examining the postpartum nicotinamide adenine dinucleotide (NAD) metabolome and the effects of maternal NAD precursor supplementation (nicotinamide riboside) on maternal physiology, nursing behavior, and offspring outcomes.
What was found
Lactating mice exhibited a depressed hepatic NAD metabolome alongside a >20-fold increase in mammary NAD coenzymes. Supplementation with NAD precursors increased circulating prolactin, superinduced mammary biosynthetic programs, increased arched-back nursing time, enhanced mammary production of brain-derived neurotrophic factor, promoted postgestational weight loss, and accelerated offspring neurobehavioral development, resulting in adult offspring with enhanced hippocampal neurogenesis and improved body composition. Specific numerical values beyond the fold-change were not reported in the abstract.
Why it matters
This work highlights the metabolic burden of lactation on maternal NAD systems and suggests that targeting NAD metabolism during the postpartum period could support both maternal recovery and neonatal development.
Limits
The findings are derived entirely from preclinical rodent models and described within a commentary; no human clinical trials, specific dosages, sample sizes, or formal statistical bounds were provided in the abstract.
Cited by
- supports During lactation in mothers, the liver NAD system declines while NAD precursors accumulate in the mammary gland to support lactation.