Ritz S, Schütz H W
Institut für Rechtsmedizin, Christian-Albrechts-Universität zu Kiel, Germany.
J Forensic Sci. 1993 May;38(3):633-40.
We investigated whether measurement of aspartic acid racemization in intervertebral discs (IVD) could be used in the postmortem estimation of age at death. The extent of aspartic acid racemization in IVD tissues was found to increase with age. The rate of racemization turned out to be much higher in the nucleus pulposus than in the annulus fibrosus. The relation between age and the D-aspartic acid content in the anterior peripheral annulus fibrosus of IVD was close enough to allow postmortem estimation of age at death based on the extent of aspartic acid racemization in this tissue.
我们研究了椎间盘（IVD）中天冬氨酸消旋化的测量是否可用于死后死亡年龄的估计。发现IVD组织中天冬氨酸消旋化的程度随年龄增长而增加。结果表明，髓核中的消旋化速率比纤维环中的要高得多。IVD前外侧纤维环中年龄与D-天冬氨酸含量之间的关系足够密切，足以根据该组织中天冬氨酸消旋化的程度对死后死亡年龄进行估计。
