法医学杂志 ›› 2017, Vol. 33 ›› Issue (3): 221-224.DOI: 10.3969/j.issn.1004-5619.2017.03.001

• 论著 •    下一篇

CBS在脑挫伤后损伤时间推断中的作用

褚  洋1,韩国宪2,王尧淇3,单海燕4,陈溪萍1,陶陆阳1,张明阳1   

  1. (1. 苏州大学医学部法医学系,江苏 苏州 215123; 2. 营口市公安局,辽宁 营口 115000; 3. 黄河中心医院司法鉴定中心,河南 郑州 450004; 4. 苏州市立医院北区妇产科,江苏 苏州 215008)
  • 发布日期:2017-06-25 出版日期:2017-06-28
  • 通讯作者: 张明阳,男,博士,讲师,主要从事法医病理学和法医临床学科研与教学;E-mail:ghost8469@163.com 陶陆阳,男,博士,博士研究生导师,主要从事法医病理学和法医临床学科研与教学;E-mail:taoluyang@suda.edu.cn
  • 作者简介:褚洋(1983—),男,硕士研究生,主要从事颅脑损伤研究;E-mail:44500937@qq.com
  • 基金资助:

    国家自然科学基金资助项目(81601306,81301039);中国博士后科学基金资助项目(2015M570476);江苏高校优势学科建设工程资助项目(PAPD);上海市法医学重点实验室开放课题资助项目(KF1502);苏州市科技发展计划资助项目(SYSD2015119)

The Role of CBS in Injury Time Estimation after Brain Contusion

CHU YANG1, HAN GUO-XIAN2, WANG YAO-QI3, SHAN HAI-YAN4, CHEN XI-PING1, TAO LU-YANG1, ZHANG MING-YANG1   

  1. (1. Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China; 2. Ying- kou Public Security Bureau, Yingkou 115000, China; 3. Forensic Identification Center of Yellow River Hospital, Zhengzhou 450004, China; 4. Department of Obstetrics and Gynecology, North District of Suzhou Municipal Hospital, Suzhou 215008, China)
  • Online:2017-06-25 Published:2017-06-28

摘要: 目的 观察胱硫醚β合成酶(cystathionine β-synthase,CBS)在脑挫伤后皮质中不同时段的表达变化。 方法 利用改良的自由落体装置建立小鼠脑挫伤模型,通过Western印记法和免疫组织化学方法检测不同时间点(1 h、6 h、12 h、1 d、2 d、3 d、7 d)损伤区周围皮质CBS的表达变化。 结果 Western印迹法显示,CBS在脑损伤后皮质中的表达下调,在损伤3 d时降到最低,于损伤7 d恢复到正常水平。免疫组织化学结果显示,CBS在正常皮质中有表达,损伤后表达逐渐减弱,损伤3 d后阳性表达明显减少,7 d恢复到正常水平。 结论 CBS有望成为法医学推断脑挫伤后损伤经过时间的参考指标。

关键词: 法医病理学, 脑损伤, 胱硫醚&beta, 合成酶, 损伤时间, 小鼠

Abstract: Objective To observe the changes of cystathionine β-synthase (CBS) expression in the cerebral cortex after brain contusion at different times. Methods An experimental model of traumatic brain injury (TBI) in mice was established by an improved weight-drop device. Then Western blotting and immunohistochemical examination were used to detect the CBS expression in cerebral cortex around injury at different time points (1 h, 6 h, 12 h, 1 d, 2 d, 3 d, 7 d). Results The results of Western blotting revealed that the expression level of CBS was down-regulated and reached its lowest level at the 3rd days after injury, and then restored to normal level after 7 days. The results of immunohistochemistry showed that CBS was present in the normal brain cortex. CBS expression gradually decreased at the 3rd days after injury, and then restored to normal level after 7 days. Conclusion CBS has the potential to be a reference index for time estimation after brain contusion in forensic practice.

Key words: forensic pathology, brain injuries, cystathionine beta-synthase, injury time, mice

中图分类号: