Prenatal factors associated with the neonatal line thickness in human deciduous incisors

Kurek, Marta; Żądzińska, Elżbieta; Sitek, Aneta; Borowska-Strugińska, Beata; Rosset, Iwona; Lorkiewicz, Wiesław

doi:10.1016/j.jchb.2014.11.001

Cited by 19 publications

(28 citation statements)

References 87 publications

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“…In several studies vaginal delivery was associated with wider NNLs compared to delivery by Caesarean section and this difference has been attributed to the longer duration of systemic stress associated with the natural birth process (Canturk et al, ; Eli et al, ). Conversely, other studies have reported that there was no variation in the width of the NNL according to mode of delivery (Hurnanen et al, ; Kurek et al, ; Zanolli et al, ). A potential confounding factor unaddressed by these studies is that some natural births are relatively straightforward while some Caesarian deliveries are non‐elective and can occur after many hours of labor and physiological stress to both mother and baby (Kurek et al, ).…”

Section: Life History and Dental Enamelmentioning

confidence: 84%

“…Norén and colleagues reported that wider NNLs are related to disruptions in the normal fetal calcium‐phosphate metabolism caused by gestational illnesses such as maternal diabetes (Norén, ; Norén, Grahnen, et al, ). Subsequent research recorded a thinner NNL associated with conditions in pregnancy requiring an antispasmodic medication (Kurek et al, ). Others have concluded that lower gestational age at birth or lower birthweight co‐occur with wider NNLs (Kurek et al, ; Norén, ; Priya et al, ; Rythen et al, ; Zanolli et al, ).…”

Section: Life History and Dental Enamelmentioning

confidence: 99%

“…The biological status of the mother and the resulting fetal environment are potential factors in determining NNL width. Several studies have concluded that the appearance of the NNL is primarily dependent on gestational factors (Behie & Miszkiewicz, ; Kurek et al, ; Norén, ; Norén, Grahnen, et al, ; Norén, Magnusson, & Grahnen, ; Zanolli et al, ). Norén and colleagues reported that wider NNLs are related to disruptions in the normal fetal calcium‐phosphate metabolism caused by gestational illnesses such as maternal diabetes (Norén, ; Norén, Grahnen, et al, ).…”

Section: Life History and Dental Enamelmentioning

confidence: 99%

“…Others have concluded that lower gestational age at birth or lower birthweight co‐occur with wider NNLs (Kurek et al, ; Norén, ; Priya et al, ; Rythen et al, ; Zanolli et al, ). Moreover, recent studies have reported an association between season of birth and both the width of the NNL (Kurek et al, ) and prenatal enamel thickness (Żądzińska et al, ). Children born in the summer and in the spring had thinner NNLs than children born in the winter.…”

Section: Life History and Dental Enamelmentioning

confidence: 99%

“…Children born in the summer and in the spring had thinner NNLs than children born in the winter. The authors suggested that lower maternal and fetal Vitamin D exposure in winter births contributed to a delay in the resumption of regular secretion by ameloblasts (Kurek et al, ). Most recently, Behie and Miszkiewicz () reported that children born to mothers who consumed alcohol during pregnancy had a thicker NNL than those of mother who abstained.…”

Section: Life History and Dental Enamelmentioning

confidence: 99%

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Effects of maternal, gestational, and perinatal variables on neonatal line width observed in a modern UK birth cohort

Hassett

Dean

Ring

et al. 2020

American J Phys Anthropol

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Objectives: The objective of this study was to explore potential relationships between neonatal line (NNL) width and early life history variables such as maternal health, gestation, the birth process, and perinatal health. Materials and methods: Histological thin sections of deciduous canines were studied from 71 children from the Avon Longitudinal Study of Parents and Children (ALSPAC). The width of the NNL was measured in three locations on the tooth crown using spatial mapping techniques (ArcGIS) from digital images from an Olympus VS-120 microscope. Life history variables were collected prospectively through a combination of clinical observations and questionnaires.Results: Infants born late term or post term had narrower neonatal lines than those born prematurely or at full term. Infants born in Autumn (September to November) had narrower NNLs than those born at other times of year. NNLs in infants born to mothers with hypertension were wider than those without. Infants resuscitated at birth or born to obese mothers had narrower NNLs than those that were not. There was no association between NNL width and either the type or duration of delivery.Discussion: The NNL in enamel is an irregular accentuated line, but the factors underlying its formation and width remain unclear. In contrast to some previous studies, we found no association between wider NNLs and long or difficult births. Instead, we found that the width of the neonatal line NNL varied in relation to parameters that reflected the prenatal environment and length of gestation.

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Section: Life History and Dental Enamelmentioning

confidence: 84%

Section: Life History and Dental Enamelmentioning

confidence: 99%

Section: Life History and Dental Enamelmentioning

confidence: 99%

Section: Life History and Dental Enamelmentioning

confidence: 99%

Section: Life History and Dental Enamelmentioning

confidence: 99%

See 3 more Smart Citations

Effects of maternal, gestational, and perinatal variables on neonatal line width observed in a modern UK birth cohort

Hassett

Dean

Ring

et al. 2020

American J Phys Anthropol

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Association of Maternal Stress and Social Support During Pregnancy With Growth Marks in Children’s Primary Tooth Enamel

et al. 2021

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IMPORTANCEExposure to maternal psychosocial stressors during the prenatal and perinatal periods can have major long-term mental health consequences for children. However, valid and inexpensive biomarkers are currently unavailable to identify children who have been exposed to psychosocial stress and the buffers of stress exposure. OBJECTIVE To assess whether a growth mark in tooth enamel, the neonatal line, is associated with exposure to prenatal and perinatal maternal psychosocial factors. DESIGN, SETTING, AND PARTICIPANTS This prospective cohort study used exfoliated primary canine teeth and epidemiological survey data from 70 children enrolled in the Avon Longitudinal Study of Parents and Children, a birth cohort based in Bristol, England. Exfoliated teeth were

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Accentuated lines in the enamel of primary incisors from skeletal remains: A contribution to the explanation of early childhood mortality in a medieval population from Poland

Żądzińska

Lorkiewicz

Kurek

et al. 2015

American J Phys Anthropol

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Physiological disruptions resulting from an impoverished environment during the first years of life are of key importance for the health and biological status of individuals and populations. Studies of growth processes in archaeological populations point to the fact that the main causes of childhood mortality in the past are to be sought among extrinsic factors. Based on this assumption, one would expect random mortality of children, with the deceased individuals representing the entire subadult population. The purpose of this study is to explore whether differences in early childhood survival are reflected in differences in deciduous tooth enamel, which can provide an insight into the development of an individual during prenatal and perinatal ontogeny. Deciduous incisors were taken from 83 individuals aged 2.0-6.5 years from a medieval inhumation cemetery dated AD 1300-1600. Prenatal and postnatal enamel formation time, neonatal line width, and the number of accentuated lines were measured using an optical microscope. The significantly wider neonatal line and the higher frequency of accentuated lines in the enamel of the incisors of children who died at the age of 2-3 years suggest the occurrence of stronger or more frequent stress events in this group. These results indicate that in skeletal populations mortality was not exclusively determined by random external factors. Individuals predisposed by an unfavorable course of prenatal and perinatal growth were more likely to die in early childhood.

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Prenatal factors associated with the neonatal line thickness in human deciduous incisors

Cited by 19 publications

References 87 publications

Effects of maternal, gestational, and perinatal variables on neonatal line width observed in a modern UK birth cohort

Effects of maternal, gestational, and perinatal variables on neonatal line width observed in a modern UK birth cohort

Association of Maternal Stress and Social Support During Pregnancy With Growth Marks in Children’s Primary Tooth Enamel

Accentuated lines in the enamel of primary incisors from skeletal remains: A contribution to the explanation of early childhood mortality in a medieval population from Poland

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