Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )

SUMMARY: Craniometry has revealed that continuous skull expansion occurs after dental maturity in macaques and other nonhuman primates. Endocranial volume has been shown to increase with age from mid-adulthood to older age in macaques. Thus, neurocranial thickness may decrease with age, especially f...

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Autores principales:	Minh,Nguyen Van, Duong,Dang Thai, Le,Thuong Thi Thanh, Hirasaki,Eishi, Hamada,Yuzuru
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2019
Materias:	Age-related changes Cranial Thickness Neurocranium Macaques
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022019000301142
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spelling	oai:scielo:S0717-950220190003011422019-09-11Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )Minh,Nguyen VanDuong,Dang ThaiLe,Thuong Thi ThanhHirasaki,EishiHamada,Yuzuru Age-related changes Cranial Thickness Neurocranium Macaques SUMMARY: Craniometry has revealed that continuous skull expansion occurs after dental maturity in macaques and other nonhuman primates. Endocranial volume has been shown to increase with age from mid-adulthood to older age in macaques. Thus, neurocranial thickness may decrease with age, especially from mid-adulthood to older age. Here, we investigated age-related changes in the cranial thickness of Japanese macaques (Macaca fuscata). Ten cranial thickness measurements (ten neurocranial landmarks) were made using computed tomographic scans of 140 crania from adult macaques (67 males and 73 females). The cranial thickness at many sites was shown to increase in the neurocranium from young adulthood (7-9 years) to early-mid adulthood (14-19 years) in males and latemid adulthood (19-24 years) in females, while it was decreased in the oldest age group (>24 years). The cranial thickness at various sites showed a significant decrease from mid-adulthood to very old age in both sexes, although females had more sites with decreasing thickness than did males. The difference between sexes in terms of age-related changes in cranial thickness at sites on the mid-sagittal plane may be associated with the differences in the size of the projecting face and canines between males and females. The greater number of sites with decreasing thickness in females than in males may be associated with postmenopausal estrogen depletion in female macaques.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.37 n.3 20192019-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022019000301142en10.4067/S0717-95022019000301142
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Age-related changes Cranial Thickness Neurocranium Macaques
spellingShingle	Age-related changes Cranial Thickness Neurocranium Macaques Minh,Nguyen Van Duong,Dang Thai Le,Thuong Thi Thanh Hirasaki,Eishi Hamada,Yuzuru Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )
description	SUMMARY: Craniometry has revealed that continuous skull expansion occurs after dental maturity in macaques and other nonhuman primates. Endocranial volume has been shown to increase with age from mid-adulthood to older age in macaques. Thus, neurocranial thickness may decrease with age, especially from mid-adulthood to older age. Here, we investigated age-related changes in the cranial thickness of Japanese macaques (Macaca fuscata). Ten cranial thickness measurements (ten neurocranial landmarks) were made using computed tomographic scans of 140 crania from adult macaques (67 males and 73 females). The cranial thickness at many sites was shown to increase in the neurocranium from young adulthood (7-9 years) to early-mid adulthood (14-19 years) in males and latemid adulthood (19-24 years) in females, while it was decreased in the oldest age group (>24 years). The cranial thickness at various sites showed a significant decrease from mid-adulthood to very old age in both sexes, although females had more sites with decreasing thickness than did males. The difference between sexes in terms of age-related changes in cranial thickness at sites on the mid-sagittal plane may be associated with the differences in the size of the projecting face and canines between males and females. The greater number of sites with decreasing thickness in females than in males may be associated with postmenopausal estrogen depletion in female macaques.
author	Minh,Nguyen Van Duong,Dang Thai Le,Thuong Thi Thanh Hirasaki,Eishi Hamada,Yuzuru
author_facet	Minh,Nguyen Van Duong,Dang Thai Le,Thuong Thi Thanh Hirasaki,Eishi Hamada,Yuzuru
author_sort	Minh,Nguyen Van
title	Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )
title_short	Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )
title_full	Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )
title_fullStr	Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )
title_full_unstemmed	Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )
title_sort	age-related changes in the cranial thickness of japanese macaques ( macaca fuscata )
publisher	Sociedad Chilena de Anatomía
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022019000301142
work_keys_str_mv	AT minhnguyenvan agerelatedchangesinthecranialthicknessofjapanesemacaquesmacacafuscata AT duongdangthai agerelatedchangesinthecranialthicknessofjapanesemacaquesmacacafuscata AT lethuongthithanh agerelatedchangesinthecranialthicknessofjapanesemacaquesmacacafuscata AT hirasakieishi agerelatedchangesinthecranialthicknessofjapanesemacaquesmacacafuscata AT hamadayuzuru agerelatedchangesinthecranialthicknessofjapanesemacaquesmacacafuscata
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Age-Related Changes in the Cranial Thickness of Japanese Macaques ( Macaca fuscata )

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