The Impact of Sex and Ancestry on Cranial Sutures in the Hamann Todd Collection

NEXUS: The Canadian Student Journal of Anthropology ◽

10.15173/nexus.v22i1.11 ◽

2014 ◽

Vol 22 ◽

pp. 68-80

Author(s):

Rajitha Sivakumaran

Keyword(s):

Age Estimation ◽

Population Based ◽

Cranial Sutures ◽

Cranial Suture ◽

Suture Closure ◽

Unreliable Method ◽

The Impact

Cranial suture closure has been regarded as an unreliable method for age estimation due to the large amount ofvariability in the commencement, progression and termination of fusion. The Hamann Todd Osteological Collectionwas used to examine the sagittal, coronal and lambdoid sutures in an attempt to determine the impact of sex and ancestry on synostosis. The sagittal does not appear to be impacted by sex, but in the coronal and lambdoid sutures,significant sex-based differences were noted. Generally, females exhibited greater progression than males, butsynostosis was more strongly related to age in males. Stronger age-score correlations were present in black individuals compared to white individuals. This questions the application of current cranial aging methods, which do not address sex- and population-based differences in the commencement, progression and termination ofsutural fusion.

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Non-Invasive Age Estimation by Cranial Suture Closure in Japanese Sika Deer (Cervus nippon)

Mammal Study ◽

10.3106/ms2018-0065 ◽

2019 ◽

Vol 44 (3) ◽

pp. 147

Author(s):

Jinwoo Oh ◽

Masato Minami ◽

Suzuna Ikeda ◽

Seiki Takatsuki ◽

Nobumasa Oonishi ◽

...

Keyword(s):

Age Estimation ◽

Sika Deer ◽

Cervus Nippon ◽

Cranial Suture ◽

Non Invasive ◽

Suture Closure

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Age Estimation from Computed Tomography of Cranial Suture Closure in a Thai Population

Medicine & Health ◽

10.17576/mh.2020.1502.24 ◽

2020 ◽

Vol 15 (2) ◽

pp. 276-289

Author(s):

Pasuk Mahakkanukrauh ◽

Keyword(s):

Computed Tomography ◽

Age Estimation ◽

Ct Images ◽

Ct Image ◽

Cranial Suture ◽

Thai Population ◽

Age Related ◽

Fundamental Information ◽

Starting Point ◽

Suture Closure

Age estimation from human skeletal remains is an important step to reconstruct a biological profile. Cranial suture has long been studied for its age-related closure. However, until now, forensic anthropologists still attempt to investigate the best way of estimating age at death from cranial suture closure because skull is usually found at the crime scene due to its easy recognised-appearance and persistence to post-mortem insults. For these reasons, a study of age estimation from cranial suture closure in a Thai population was conducted, which focussed to study the appearance and visibility of facial suture closure using computed tomography (CT). CT image series of 140 cases were obtained in order to investigate ectocranial closure of the selected facial sutures. The results from CT image analysis revealed that nasomaxillary provided the most consistent examination of suture closure (52%) while frontonasal delivered the lowest consistency in suture closure examination (29%). The inconsistency mostly occurred in assigning the closure score of 1 and 2. Thus, it could be suggested that a 3-scale scoring system of closure: open, closing, and closed, could be an appropriate method of evaluating degree of ectocranial closure of facial sutures obtained from CT imaging. This fundamental information of facial suture closure from CT images could serve as a starting point on development of age estimation technique from suture closure by utilising CT images.

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Evolutionary phenome-genome analysis of cranial suture closure in mammals

10.1101/2020.06.15.148130 ◽

2020 ◽

Author(s):

Borja Esteve-Altava ◽

Fabio Barteri ◽

Xavier Farré ◽

Gerard Muntané ◽

Juan Francisco Pastor ◽

...

Keyword(s):

Brain Size ◽

Mammalian Species ◽

Cranial Sutures ◽

Late Development ◽

Cranial Suture ◽

Genetic Pathways ◽

Stress Diffusion ◽

Suture Closure ◽

The Brain ◽

Development And Evolution

ABSTRACTCranial sutures are growth and stress diffusion sites that connect the bones protecting the brain. The closure of cranial suture is a key feature of mammalian late development and evolution, which can also lead to head malformations when it occurs prematurely (craniosynostosis). To unveil the phenotypic and genetic causes of suture closure in evolution, we examined 48 mammalian species searching for (i) causal links between suture patency, brain size, and diet using phylogenetic path analysis; and (ii) instances of genome-phenome convergence amino acid substitutions. Here we show that brain size and the anteroposterior order of ossification of the skull are the two main causes of sutures patency in evolution. We also identified three novel candidate genes for suture closure in evolution (HRNR, KIAA1549, and TTN), which have never been reported in clinical studies of craniosynostosis. Our results suggest that different genetic pathways underlie cranial suture closure in evolution and disease.

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Macroscopic Cranial Suture Closure in An Adult Population: Is It Reliable for Estimating Age?

Arab Journal of Forensic Sciences and Forensic Medicine ◽

10.26735/ijjm2816 ◽

2021 ◽

Vol 3 (1) ◽

pp. 17-30

Author(s):

Nilesh Keshav Tumram ◽

Soniya B.Parchake ◽

Arun P. Kasote ◽

Meena M. Meshram

Keyword(s):

Indian Population ◽

Adult Population ◽

Cranial Sutures ◽

Strong Positive Correlation ◽

Age Group ◽

Cranial Suture ◽

Mean Values ◽

Positive Correlation ◽

Suture Closure

Background:- Age estimation is one of the important parameters for estimation of biological profile of an individual. Generally speaking, estimation of age of an individual whether living or dead is very important in Medicolegal and forensic scenario. The objective of the present study was to observe the chronology and pattern of union of cranial sutures namely coronal and lambdoid and to find out the relationship between closure of cranial suture and age of the deceased. An attempt was also made to see the applicability of Acsadi and Nemeskeri method in an Indian population. A total of 193 adult calvaria (133 males and 60 females) were studied from the autopsy cases. The extent of obliteration was studied ectocranially and endocranially in the two main sutures of the calvarium i.e. coronal and lambdoid. Results:- The results indicate that a strong positive correlation of ectocranial with endocranial suture closure is found in the age group of 30-39 years for right coronal, left coronal, while age group of 60-69 years shows a strong positive correlation for lambdoid sutures. This has also been confirmed in the study that the cranial suture obliteration starts endocranially and proceeds towards ectocranial surface. Statistically insignificant sex differences exist in suture closure. Conclusion:- The coronal and lambdoid sutures were closed in the age group of above 70 years with mean values of 3.54 for coronal and 3.7 for lambdoid suture. Acsadi and Nemeskeri’s method was found to be applicable to the Indian population for determination of age from cranial sutures.

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