Bone in the pregnant mother and newborn at birth

Namgung, Ran; Tsang, Reginald C.

doi:10.1016/s0009-8981(02)00025-6

Cited by 101 publications

(68 citation statements)

References 56 publications

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“…The negative influence of pregnancy on bone tissue was also shown by Namgung and Tsuang [25]. They concluded that in the first trimester bone resorption markers increase, while bone formation markers increase in the last trimester.…”

Section: R R R R Results Esults Esults Esults Esultsmentioning

confidence: 78%

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The influence of caffeine on the biomechanical properties of bone tissue during pregnancy in a population of rats

Olchowik

Chadaj-Polberg²,

Tomaszewski³

et al. 2011

Folia Histochem Cytobiol.

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Abstract: Abstract: Abstract: The influence of pregnancy on bone tissue metabolism is not completely understood. Caffeine also has a potentially negative influence on bones. The aim of this study was the evaluation of changes in the bones of pregnant rats under the influence of caffeine. The experiment was carried out on Wistar rats. The evaluation of rats' bone tissue quality was performed based on bone density measurements and resistance examinations. It analyzed the impact of caffeine on the degree of bone tissue mineralization and the composition of the bones. The mean value of pelvises 'wet' and 'dry' densities in a group of pregnant rats with caffeine intake was lower compared to the control group. The deformation in maximal load point of the femur shaft in the experimental group was significantly higher than in the control group. In the experimental group, the percentage of water in the bones was significantly higher, while the content of inorganic phase was significantly lower compared to the control group. The changes of biomechanical parameters in the group of pregnant rats with caffeine intake indicate its negative influence on the bone. Our results show higher plasticization of the bone shafts of the animals under the influence of caffeine. Higher deformation of bone shafts may have an effect on the statics of the skeleton. The administration of caffeine significantly affected the quantitative composition of the bone.

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Section: R R R R Results Esults Esults Esults Esultsmentioning

confidence: 78%

“…Some authors [23][24][25] have observed significant changes in the bones, especially in the areas rich in the trabecular bone, in pregnant females. Researchers measured BMD by using dual-energy X-ray absorptiometry (DEXA).…”

Section: R R R R Results Esults Esults Esults Esultsmentioning

confidence: 99%

The influence of caffeine on the biomechanical properties of bone tissue during pregnancy in a population of rats

Olchowik

Chadaj-Polberg²,

Tomaszewski³

et al. 2011

Folia Histochem Cytobiol.

View full text Add to dashboard Cite

show abstract

“…Studies have found that the bone mass of infants born in the summer is lower than that of those born in the winter (Namgung et al 1992;Oliveri et al 1991). However, the opposite has been reported in Korea, where infants born in winter have lower bone mineral density than the infants born in summer (Namgung and Tsang 2003).…”

Section: Climatementioning

confidence: 82%

Bone Mineral Density in Children From Anthropological and Clinical Sciences: A Review

Manifold¹

2014

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Bone mineral density (BMD) is a frequent topic of discussion in the clinical literature in relation to the bone health of both adults and children. However, in archaeological and/ or anthropological studies the role of BMD is often cited as a possible factor in the poor skeletal preservation which can lead to an under-representation of juvenile skeletal remains. During skeletal development and growth throughout childhood and adolescence changes take place in both the size and shape of bones and these changes also result in the increasing of mineral content. BMD can be affected by many factors, which include, age, genetics, sexual maturation, amount of physical activity and dietary calcium. This paper aims to review the clinical and anthropological literature on BMD and discuss the numerous methods of measurement and how the availability of certain methods such as Dual-energy x-ray absorptiometry (DEXA) and quantitative computed tomography (QCT) can influence the study of bone density in archaeological skeletal collections and also the future potential for forensic anthropological studies.

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“…[22][23][24][25][26][27][28] Lower bone mineral content in SGA infants may be due to lower cortical bone mass resulting in decreased diaphyseal diameters and increased medullary diameters, 37 a higher turnover of bone matrix and reduced bone formation, 38 or reduced transplacental mineral transfer during pregnancy. 39 The reason for the discrepancy in the results between studies that used tibial QUS and those that used photon absorptiometry or DEXA to compare SGA and AGA infant bone status is unknown. SGA versus AGA bone status by QUS M Chen et al DEXA is the most widely used method for quantitating bone mineralization.…”

Section: Discussionmentioning

confidence: 99%

Bone ultrasound velocity in small- versus appropriate-for-gestational age preterm infants

2007

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Objective: To compare bone status of small-for-gestational age (SGA) versus appropriate-for-gestational age (AGA) newborn preterm infants.Study Design: Tibial speed of sound (SOS) was measured in 144 infants categorized as SGA or AGA using the reference tables of Lubchenco et al. and Alexander et al.Result: By the Lubchenco tables, 22% of infants were SGA and 75% were AGA. The mean gestational ages of SGA and AGA were similar (33.3±2.6 and 32.5±2.4 weeks, respectively, P ¼ 0.09); however, SGA infant birth weights were lower (1329±392 and 1829±481 g, respectively, P<0.001). SOS values were higher for SGA versus AGA infants (3098±135 and 3003±122 m/s, respectively. P<0.001). Use of the Alexander tables yielded a twofold increase in the percent of infants categorized as SGA; SOS values remained significantly greater for SGA infants (P<0.001). Conclusion:Higher tibial SOS values in SGA versus AGA infants indicate greater bone strength.

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Bone in the pregnant mother and newborn at birth

Cited by 101 publications

References 56 publications

The influence of caffeine on the biomechanical properties of bone tissue during pregnancy in a population of rats

The influence of caffeine on the biomechanical properties of bone tissue during pregnancy in a population of rats

Bone Mineral Density in Children From Anthropological and Clinical Sciences: A Review

Bone ultrasound velocity in small- versus appropriate-for-gestational age preterm infants

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