不同环境条件下大鼠皮肤死后大体和组织学改变

Gross and Histologic Postmortem Changes of the Rat's Skin in Different Surrounding Conditions

死亡时间的推测是法医病理学研究的重点和难点,对晚期死亡时间的推断误差较大。皮肤是机体死后分解破坏发生较迟的部分。不同环境条件下死后不同时间大鼠皮肤大体、组织学的改变,为推测较长的死后间隔时间建立实验动物依据。利用皮肤大体、组织学改变可望较系统和准确地推测晚期死亡时间。

Estimatlng the time of death has been the most important and diifficult work in forensic pathology for a long time, especially the long- term postmortem interval （PMI） Skin was the latest part to be breakdown. To establish a animal experimental model estimating the PMI, especially a long-term PMI, we studied the gross and histologic postmortem changes of rat skin in different environmental condition. We sequentially and syste,natically studied the gross and histologic changes of female Sprague-Dawely rat＇s skin in different surroundlng condiii0n. The differences of surrounding temperature Were the most important agent resulting the different postmortem changes time course. It is seemed to be possibility to accurately and systematically estimating the long-term PMI using gross and histologic changeas of skin.