法医学杂志2017，Vol.33Issue(1)：17-20,4.DOI:10.3969/j.issn.1004-5619.2017.01.004
大鼠死后肌肉电导率与腐败程度的关系
Relationship between Electrical Conductivity and Decomposition Rate of Rat Post-mortem Skeletal Muscle
摘要
Abstract
Objective T o analyze the relationship am ong electrical conductivity (E C ), total volatile basic nitrogen (T V B-N ), w hich is an index of decom position rate for m eat production, and postm ortem inter-val (PM I). T o explore the feasibility of E C as an index of cadaveric skeletal m uscle decom position rate and lay the foundation for PM I estim ation. Methods H ealthy Sprague-D aw ley rats w ere sacrificed by cervical vertebrae dislocation and kept at 28℃. M uscle of rear lim bs w as rem oved at different PM I, ho-m ogenized in deionized w ater and then skeletal extraction liquid of m ass concentration 0.1 g/m L w as prepared. E C and T V B-N of extraction liquid w ere separately determ ined. T he correlation betw een E C (x1) and T V B-N (x2) w as analyzed, and their regression function w as established. T he relationship be-tw een PM I (y) and these tw o param eters w ere studied, and their regression functions w ere separately established. Results T he change trends of E C and T V B-N of skeletal extraction liquid at different PM I w ere alm ost the sam e, and there w as a linear positive correlation betw een them . T he regression equation w as x2=0.14 x1-164.91 (R2=0.982). E C and T V B-N of skeletal m uscle changed significantly w ith PM I, and the regression functions w ere y=19.38 x13-370.68 x12+2526.03 x1-717.06 (R2=0.994), and y=2.56 x23-48.39 x22+330.60 x2-255.04 (R2=0.997), respectively. Conclusion E C and T V B-N of rat postm ortem skeletal m uscle show sim ilar change trends, w hich can be used as an index for decom position rate of cadaveric skeletal m uscle and provide a m ethod for further study of late PM I estim ation.关键词
法医病理学/腐败程度/肌/骨骼/电导率/挥发性盐基氮/死亡时间/大鼠Key words
forensic pathology/decom position rate/m uscle/skeletal/electrical conductivity/total volatile basic nitrogen/postm ortem interval/rats分类
社会科学引用本文复制引用
夏志远,翟仙敦,刘蓓蓓,郑哲,赵琳琳,莫耀南..大鼠死后肌肉电导率与腐败程度的关系[J].法医学杂志,2017,33(1):17-20,4.基金项目
河南省基础与前沿课题资助项目(112300410082) （112300410082）
