Effects of Dietary Calcium Intervention on Adolescent Mothers and Newborns

Chan, Gary M.; McElligott, Kathleen; McNaught, Teresa; Gill, Gurmail

doi:10.1097/01.aog.0000231721.42823.9e

Cited by 67 publications

(83 citation statements)

References 32 publications

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“…En la presente investigación no se encontraron diferencias entre los valores sanguíneos de las madres adolescentes y de las madres adultas. Lo anterior difiere de lo reportado en la literatura en otros grupos poblacionales, en donde las madres adolescentes tienen una mayor pérdida de masa ósea desde el 26 (13) 49 (26) 95 (50) 21 (11) 9 (13) 18 (26) 35 (51) 7 (10) 17 (14) 31 (25) comienzo del embarazo hasta la sexta semana posparto, indicando que la prevalencia de deficiencia de vitamina D en ellas es mayor 13,[23][24][25] . En nuestro estudio se documentó que la tercera parte de las madres presentaron sobrepeso u obesidad al inicio del embarazo, lo cual se incrementó significativamente al final del mismo.…”

Section: Discussionunclassified

Deficiencia de vitamina D en madres y neonatos mexicanos

Ochoa-Correa

Hernández

Pérez

et al. 2017

GMM

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Section: Discussionunclassified

Deficiencia de vitamina D en madres y neonatos mexicanos

Ochoa-Correa

Hernández

Pérez

et al. 2017

GMM

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“…No studies have focused specifically on vitamin D deficiency during pregnancy; the available data come from observational studies (12,13,(35)(36)(37)(38)(39)(40)(41)) and a few clinical trials of vitamin D supplementation (42)(43)(44)(45)(46)(47)(48)(49)(50) in pregnant women ranging from vitamin D deficient to sufficient. Severe vitamin D deficiency causes modest hypocalcemia and secondary hyperparathyroidism in nonpregnant adults, but no reports have documented worsening during pregnancy.…”

Section: Human Datamentioning

confidence: 99%

“…Several studies found no effect of maternal vitamin D supplementation on cord blood calcium concentrations (42,48,49), but 2 small studies in Asian women showed a small but significant increase in cord calcium concentrations (46,47). Another study compared administration of 1200 mg Ca and 10 g (400 IU) vitamin D (as dairy) or 1200 mg Ca alone (as orange juice) with placebo and found greater birth weight and total body calcium levels in the fetuses whose mothers received the dairy product but no change in other skeletal variables such as length and head circumference (50). The authors do not know whether the results were due to the dairy product's vitamin D content or its nutritional content compared with the supplement.…”

Section: Human Datamentioning

confidence: 99%

Vitamin D in pregnancy and lactation: maternal, fetal, and neonatal outcomes from human and animal studies

Kovacs¹

2008

The American Journal of Clinical Nutrition

306

268

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During pregnancy and lactation, mothers require significant amounts of calcium to pass on to the developing fetus and suckling neonate, respectively. Given the dependence of adult calcium concentrations and bone metabolism on vitamin D, one might anticipate that vitamin D sufficiency would be even more critical during pregnancy and lactation. However, maternal adaptations during pregnancy and lactation and fetal adaptations provide the necessary calcium relatively independently of vitamin D status. It is the vitamin D-deficient or insufficient neonate who is at risk of problems, including hypocalcemia and rickets. Due to poor penetrance of vitamin D and 25-hydroxyvitamin D [25(OH)D] into milk, exclusively breastfed infants are at higher risk of vitamin D deficiency than are formula-fed infants. Dosing recommendations for women during pregnancy and lactation might be best directed toward ensuring that the neonate is vitamin D-sufficient and that this sufficiency is maintained during infancy and beyond. A dose of vitamin D that provides 25(OH)D sufficiency in the mother during pregnancy should provide normal cord blood concentrations of 25(OH)D. Research has shown that during lactation, supplements administered directly to the infant can easily achieve vitamin D sufficiency; the mother needs much higher doses (100 g or 4000 IU per day) to achieve adultnormal 25(OH)D concentrations in her exclusively breastfed infant. In addition, the relation (if any) of vitamin D insufficiency in the fetus or neonate to long-term nonskeletal outcomes such as type 1 diabetes and other chronic diseases needs to be investigated. Am J Clin Nutr 2008;88(suppl):520S-8S.

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“…While the majority of the countries of Europe continent have annual rainfall ranging between 300 -800 mm, a few areas receive rainfall up to 4000 mm [36]. Though the rainfall is sufficient, it does not cause any leaching of minerals.…”

Section: Discussionmentioning

confidence: 99%

Soil pH as a Phenotype Determinant in Humans: Proposing a Scientific Hypothesis

Barthakur¹

2018

OJSS

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Plant growth, habitat of various microorganisms, sustenance conditions for the fauna and flora, are determined by the quality of soil. However, alteration in the properties of soil leads to various deficiencies/diseases in plants and thereby affects dependent fauna. The alkalinity and acidity of the soil refer to the change in pH value of the soil. In the North East India, most of the soils lack calcium (Ca) and are acidic. Therefore, majority of the fauna and flora have lower availability of Ca due to leaching, caused by the heavy rainfall. The present study hypothesizes that the life originating from areas deficient in Ca, impacts their bone concentration and facial formation. This makes them phenotypically distinct from their counterparts residing in the other regions which have alkaline soils or have the optimum pH value of soil. Strongly acidic soils, might have led to the formation of the major Mongolian Race in humans.

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Effects of Dietary Calcium Intervention on Adolescent Mothers and Newborns

Abstract: Calcium diet supplemented with dairy products during adolescent pregnancy resulted in higher maternal vitamin D and folate serum levels and higher newborn weight and bone mineralization compared with controls.

Cited by 67 publications

References 32 publications

Deficiencia de vitamina D en madres y neonatos mexicanos

Deficiencia de vitamina D en madres y neonatos mexicanos

Vitamin D in pregnancy and lactation: maternal, fetal, and neonatal outcomes from human and animal studies

Soil pH as a Phenotype Determinant in Humans: Proposing a Scientific Hypothesis

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