婴儿猝死综合征（ＳＩＤＳ）死因的假说是反复的缺氧发作，导致脑部神经细胞凋亡和相当数量的细胞消失，最后引起特定区域的功能丧失。尽管有证据表明ＳＩＤＳ患儿曾有反复的缺氧发作，但光镜仅发现轻微异常。该文用原位末端标记法研究未被光镜发现的细胞凋亡是否存在于ＳＩＤ The hypothesis for the cause of death in sudden infant death syndrome (SIDS) is repeated episodes of anoxia, leading to apoptosis of the brain neurons and a significant number of cells disappearing, eventually leading to loss of function in specific areas. Although there was evidence of repeated episodes of hypoxia in children with SIDS, only minor abnormalities were observed with light microscopy. In this paper, the end-to-end labeling method was used to study whether apoptosis was detected by light microscopy in SID