Maternal pregnancy vitamin D supplementation increases offspring bone formation in response to mechanical loading: Findings from a MAVIDOS Trial sub-study.

Abstract

The Maternal Vitamin D Osteoporosis (MAVIDOS) trial reported higher total body bone mineral content in winter-born infants of mothers receiving vitamin D supplementation [1000 IU/day cholecalciferol] compared with placebo from 14 weeks gestation until delivery. This sub-study aimed to determine whether antenatal vitamin D supplementation altered postnatal bone formation in response to mechanical stimulation. Thirty-one children born to MAVIDOS participants randomised to either placebo (n=19) or cholecalciferol (n=12) were recruited at age 4-5 years. Children received whole body vibration (WBV) for 10 minutes on 5 consecutive days. Fasting blood samples for bone homeostasis, 25 hydroxyvitamin D (25OHD), parathyroid hormone (PTH), and bone turnover markers (Pro-collagen Type 1 N-terminal propeptide, P1NP; Cross-linked C-telopeptide of Type I Collagen, CTX) were collected pre-WBV and on day 8 (D8). Mean changes (D) in P1NP (ng/ml) between baseline and D8 in the vitamin-D intervention and placebo groups were 40.6 and -92.6 respectively and mean changes (Δ) in CTX (ng/ml) were 0.034 (intervention) and -0.084 (placebo) respectively. Between-group DP1NP difference was 133.2ng/ml [95% CI 0.4, 266.0; p=0.049] and ΔCTX 0.05ng/ml (95% CI -0.159, 0.26ng/mL; p=0.62). Antenatal vitamin-D supplementation resulted in increased P1NP in response to WBV, suggesting early life vitamin D supplementation increases the anabolic response of bone to mechanical loading in children.

• Authors: Jaya Sujatha Gopal-Kothandapani, Alan S Rigby, Rachel Harrison, Richard Eastell, Rebecca J Moon, Elizabeth M Curtis, Cyrus Cooper, Nicholas C Harvey, Nick Bishop
• Journal: Journal of musculoskeletal & neuronal interactions (J Musculoskelet Neuronal Interact) Vol. 20 Issue 1 Pg. 4-11 (03 03 2020) ISSN: 1108-7161 [Print] Greece
• PMID: 32131365 (Publication Type: Journal Article, Multicenter Study, Randomized Controlled Trial)

Chemical References

• Vitamin D
• Cholecalciferol

Topics

• Bone Density (drug effects, physiology)
• Child, Preschool
• Cholecalciferol (administration & dosage)
• Female
• Humans
• Male
• Osteogenesis (drug effects, physiology)
• Physical Stimulation (methods)
• Pregnancy
• Prenatal Care (methods, trends)
• Prenatal Nutritional Physiological Phenomena (drug effects, physiology)
• Prospective Studies
• Vibration
• Vitamin D (administration & dosage, blood)
• Weight-Bearing (physiology)