Fusion status of the jugular growth plate: An aid for age at death determination

1995 ◽  
Vol 5 (2) ◽  
pp. 163-167 ◽  
Author(s):  
George J. R. Maat ◽  
Rob W. Mastwijk
Archaeometry ◽  
1990 ◽  
Vol 32 (1) ◽  
pp. 61-70 ◽  
Author(s):  
R. D. GILLARD ◽  
A. M. POLLARD ◽  
P. A. SUTTON ◽  
D. K. WHITTAKER

Radiocarbon ◽  
2006 ◽  
Vol 48 (3) ◽  
pp. 305-313 ◽  
Author(s):  
Gordon T Cook ◽  
Elaine Dunbar ◽  
Sue M Black ◽  
Sheng Xu

Calibration (using CALIBomb) of radiocarbon measurements made on the enamel of human teeth from people born during the nuclear era typically produce 2 possible age ranges that potentially reflect the period of tooth formation. These ranges correspond to periods before and after the 1963 atmospheric 14C maximum. Further measurements made on the collagen component of the combined dentine and cementum from the roots of the same teeth enable the appropriate age range to be selected. Using this range and the formation times for individual teeth, we estimated the year of birth of the individuals and compared these to the known dates of birth. The results were relatively accurate and confirmed those of a previous study by another research group. The present study demonstrates that it is possible to produce a good estimate of the year of birth from a single tooth.


1994 ◽  
Vol 9 (4) ◽  
pp. 329-337 ◽  
Author(s):  
G. Alciati ◽  
A. G. Drusini ◽  
M. Di Bacco ◽  
S. Pezzulli

1996 ◽  
Vol 77 (1-2) ◽  
pp. 13-26 ◽  
Author(s):  
S. Ritz ◽  
A. Turzynski ◽  
H.W. Schütz ◽  
A. Hollmann ◽  
G. Rochholz

1990 ◽  
Vol 30 (4) ◽  
pp. 317-320 ◽  
Author(s):  
Niels Lynnerup ◽  
Inge Thomsen ◽  
Bruno Frohlich

Author(s):  
S. I. Coleman ◽  
W. J. Dougherty

In the cellular secretion theory of mineral deposition, extracellular matrix vesicles are believed to play an integral role in hard tissue mineralization (1). Membrane limited matrix vesicles arise from the plasma membrane of epiphyseal chondrocytes and tooth odontoblasts by a budding process (2, 3). Nutritional and hormonal factors have been postulated to play essential roles in mineral deposition and apparently have a direct effect on matrix vesicles of calcifying cartilage as concluded by Anderson and Sajdera (4). Immature (75-85 gm) Long-Evans hooded rats were hypophysectomized by the parapharyngeal approach and maintained fourteen (14) days post-surgery. At this time, the animals were anesthetized and perfusion fixed in cacodylate buffered 2.5% glutaraldehyde. The proximal tibias were quickly dissected out and split sagittally. One half was used for light microscopy (LM) and the other for electron microscopy (EM). The halves used for EM were cut into blocks approximately 1×3 mm. The tissue blocks were prepared for ultra-thin sectioning and transmission EM. The tissue was oriented so as to section through the epiphyseal growth plate from the zone of proliferating cartilage on down through the hypertrophic zone and into the initial trabecular bone. Sections were studied stained (double heavy metal) and unstained.


1972 ◽  
Vol 69 (4) ◽  
pp. 659-688 ◽  
Author(s):  
V. Stanescu ◽  
R. Stanescu ◽  
J. A. Szirmai

ABSTRACT Microchemical determinations of glycosaminoglycans and collagen were preformed in isolated histological zones from sections of tibial epiphyseal plate biopsies obtained from children with growth disorders (pituitary dwarfism, congenital myxoedema, Turner's syndrome, Noonan's syndrome, mucopolysaccharidosis type VI, vitamin D resistant rickets and achondroplasia). Alternate sections were used for histochemical localization of glycosaminoglycans and proteins. The values were compared with those found in comparable zones of the growth plate from normal children of the same age. The chondroitin sulphate concentration (% of defatted dry wt.) in the normal epiphyseal plate increased from the resting zone towards the proliferating/hypertrophic zone; collagen exhibited a reverse trend. In some of the pathological biopsies the concentration of chondroitin sulphate was slightly decreased whereas that of collagen was slightly increased. A marked increase in the collagen concentration was found in achondroplasia. The solubility profiles of the cetylpyridinium complexes of the chondroitin sulphate fraction showed three main peaks with slight but characteristic differences in the various zones of the normal cartilage plate. Significant shifts in the proportion of these peaks were observed in several pathological biopsies, indicating possible deviations from the normal molecular characteristics of the chondroitin sulphate. Analysis of the main chondroitin sulphate fraction, obtained from pooled samples of normal tibial growth plate after fractionation on the macroscale, indicated that all three peaks contained both chondroitin-4 sulphate and chondroitin-6 sulphate and that they probably differed in their molecular weight.


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