A longitudinal study on hand and wrist skeletal maturation in chimpanzees (Pan troglodytes), with emphasis on growth in linear dimensions
A longitudinal study on hand and wrist skeletal maturation in chimpanzees (Pan troglodytes), with emphasis on growth in linear dimensions
复制标题
对黑猩猩（Pan troglodytes）手部和腕部骨骼成熟的纵向研究，重点是线性尺寸的增长
作者：
Y. Hamada;Kaoru Chatani;T. Udono;Y. Kikuchi;Harumoto Gunji
黑猩猩的手和手腕（罗斯系统;桡骨，尺骨和短骨）的骨骼成熟进行了纵向和横截面研究。基于TW 2方法（坦纳和怀特豪斯方法）评价罗斯系统13块骨骼中每一块骨骼的成熟状态，并通过这些骨骼的评分总和计算罗斯评分。通过罗斯评分和前干长度（ATL）的残差曲线和伪速度曲线分析个体差异。标准的年龄变化模式在罗斯骨骼成熟和ATL的增长，确定了每个性别，ATL的增长和骨骼和生殖成熟之间的关系进行了检查。我们发现ATL生长和罗斯骨骼成熟之间有相当好的关系。通过对人类和黑猩猩生长发育的比较，发现雄性黑猩猩和人类两性在青春期的生长特征是相互耦合的。虽然营养状况影响ATL在婴儿期的生长，但它对罗斯的成熟过程没有影响。社会关系似乎影响ATL的增长和罗斯成熟。对罗斯骨骼成熟、ATL生长和生殖成熟之间关系的分析表明，罗斯骨骼成熟是“生理年龄”的良好指标。
Skeletal maturation in the chimpanzee hand and wrist (the RUS system; radius, ulna, and short bones) was studied both longitudinally and cross-sectionally. Maturity states were evaluated in each of the 13 bones of the RUS system based on the TW2 method (Tanner and Whitehouse method), and the RUS score was calculated by the summation of scores for these bones. Individual variation was examined by means of residual curves and pseudo-velocity curves of RUS score and anterior trunk length (ATL). Norms of the age change pattern in RUS skeletal maturation and the growth of ATL were determined for each sex, and the relationships among ATL growth and skeletal and reproductive maturation were examined. We found a fairly good relationship between ATL growth and RUS skeletal maturation. Comparison of growth and development between humans and chimpanzees showed that growth characteristics are coupled with each other at puberty in male chimpanzees and in both sexes of humans. Although nutritional condition influenced ATL growth in infancy, it had no effect on the RUS maturational process. Social relationships appeared to influence both ATL growth and RUS maturation. Analyses on relationships between RUS skeletal maturation, ATL growth, and reproductive maturation, showed that RUS skeletal maturation is a good indicator of "physiological age".