Normal Hair Growth in Children

Barth, H

doi:10.1111/j.1525-1470.1987.tb00775.x

Cited by 60 publications

(47 citation statements)

References 67 publications

(61 reference statements)

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“…However, no clear difference was visible between the age of 5 and 8 years. HCC may be further elevated during the first years of life when hair morphology and growth is subject to major changes [17]. After the age of 2, hair has been observed to increase in cross-sectional surface area and in the percentage of medullated hair with age up to puberty [18].…”

Section: Discussionmentioning

confidence: 99%

Validation and Reference Ranges of Hair Cortisol Measurement in Healthy Children

Noppe

Rossum

Koper³

et al. 2014

Horm Res Paediatr

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Background: Cortisol is produced in a circadian rhythm controlled by the hypothalamus-pituitary-adrenal axis, making it cumbersome to measure long-term cortisol exposure. Hair has proven to be a reliable matrix for long-term cortisol measurement in adults and can be used as diagnostic tool for (cyclic) Cushing's syndrome. The diagnostic applicability in children has not been studied, nor have the effects of development and hair care been evaluated in children. We aimed to establish reference ranges of hair cortisol concentrations (HCC) in healthy children and to evaluate the effects of age, gender, puberty and characteristics of hair care. Methods: In 128 healthy children aged 4-14 years, HCC were measured in a small 3-cm hair lock from the back of the head. Results: HCC increased with age (p = 0.04) up to age 10 years, with a mean of 5.0, 5.8, 6.8 and 8.5 pg/mg at age 4-5, 6-7, 8-9 and 10-14 years, respectively. Children aged 4-7 years had significantly lower HCC compared to healthy adults (p = 0.007). We did not find any influence of gender, puberty or hair care characteristics on hair cortisol. Conclusion: HCC can be reliably measured in childhood, and reference ranges increase with age. HCC in children are not dependent on hair care or hair characteristics.

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Section: Discussionmentioning

confidence: 99%

Validation and Reference Ranges of Hair Cortisol Measurement in Healthy Children

Noppe

Rossum

Koper³

et al. 2014

Horm Res Paediatr

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“…Although the established use of stable isotopes in archaeology as diet and locational indicators frequently uses bone collagen or tooth enamel, bone is constantly remodeled throughout life, presenting an averaged dietary measurement, whereas tooth enamel represents the childhood signature. In contrast, scalp hair grows 1 cm a month on average in most human populations and, once formed, does not undergo further biogenic alteration (24).…”

mentioning

confidence: 99%

Stable isotope and DNA evidence for ritual sequences in Inca child sacrifice

Wilson

Taylor

Ceruti

et al. 2007

Proc. Natl. Acad. Sci. U.S.A.

149

121

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Four recently discovered frozen child mummies from two of the highest peaks in the south central Andes now yield tantalizing evidence of the preparatory stages leading to Inca ritual killing as represented by the unique capacocha rite. Our interdisciplinary study examined hair from the mummies to obtain detailed genetic and diachronic isotopic information. This approach has allowed us to reconstruct aspects of individual identity and diet, make inferences concerning social background, and gain insight on the hitherto unknown processes by which victims were selected, elevated in social status, prepared for a high-altitude pilgrimage, and killed. Such direct information amplifies, yet also partly contrasts with, Spanish historical accounts.ancient DNA ͉ bioarchaeology ͉ South America ͉ stable light isotopes ͉ ice mummies

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“…It has been proposed that racial differences are implicated in the occurrence of this entity, Mediterranean women being more subjected to abnormal hair growth [24]while Mongoloid women present a relative absence of body hair [25]. As the girls in the control group, most of the patients were of Mediterranean descent while a few were natives.…”

Section: Discussionmentioning

confidence: 99%

“…Barth [25]studied a group of 6 children (2 boys and 4 girls) with hypertrichosis and concluded that he did not know if the pattern of hypertrichosis of these children represented as abnormal entity or if it occurred as an extreme form of normal hair growth. In order to distinguish between hypertrichosis and normal hair growth, we have evaluated our patients through a careful clinical assessment and compared them with a group of normal girls who did not complain about excessive growth of their body hair.…”

Section: Discussionmentioning

confidence: 99%

Clinical Assessment and Serum Hormonal Profile in Prepubertal Hypertrichosis

Gryngarten

Bedecarrás²,

Ayuso³

et al. 2000

Horm Res Paediatr

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Twenty-two prepubertal girls with hypertrichosis were studied and compared to 10 prepubertal normal girls. Hypertrichosis was assessed according to a score that considers the amount and the distribution of vellus hair in androgen- and non-androgen-sensitive areas. Serum androgen profile and free androgen index (FAI) were determined in both groups. The hypertrichosis score was higher in patients than in the normal girls. Testosterone levels and FAI were increased in patients when compared to control; 3α-androstanediol glucuronide levels above 2 SD from the control mean were found in 10 girls and all hormonal parameters falling in the normal range were found in 4 girls. The new score designed to assess the degree of hypertrichosis was useful to differentiate between normal and pathological hair growth. Although most of the girls with prepubertal hypertrichosis showed an increased androgen bio-availability, a slight increase in peripheral 5α-reductase activity and a completely normal androgen profile was also associated with a pathological hair growth.

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Normal Hair Growth in Children

Cited by 60 publications

References 67 publications

Validation and Reference Ranges of Hair Cortisol Measurement in Healthy Children

Validation and Reference Ranges of Hair Cortisol Measurement in Healthy Children

Stable isotope and DNA evidence for ritual sequences in Inca child sacrifice

Clinical Assessment and Serum Hormonal Profile in Prepubertal Hypertrichosis

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