傅里叶变换红外光谱术用于急性及陈旧性心肌梗死的法医病理学诊断
R89%DF795.1%D919.1; 目的 利用傅里叶变换红外光谱术(Fourier transform infrared spectroscopy,FTIR)对不同病理变化阶段的心肌梗死组织进行光谱分析,以实现对急性和陈旧性心肌梗死的法医病理学诊断.方法 以苏木精-伊红(hematoxylin-eosin,HE)染色和免疫组织化学(immunohistochemistry,IHC)染色结果为参考依据,采集冠状动脉粥样硬化性心脏病猝死组左心室前壁的早期缺血心肌、坏死心肌、心肌纤维化组织以及正常对照组心肌的FTIR数据,使用多元统计分析方法进行数据分析.结果 对照心肌、早期缺血心肌和坏死心肌的...
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Published in | 法医学杂志 Vol. 39; no. 6; pp. 535 - 541 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | Chinese |
Published |
司法鉴定科学研究院 上海市法医学重点实验室 司法部司法鉴定重点实验室 上海市司法鉴定专业技术服务平台,上海 200063
2023
山西医科大学法医学院,山西 晋中 030600%广东省公安厅刑事技术中心 法医病理学公安部重点实验室,广东 广州 510050%司法鉴定科学研究院 上海市法医学重点实验室 司法部司法鉴定重点实验室 上海市司法鉴定专业技术服务平台,上海 200063 |
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Online Access | Get full text |
ISSN | 1004-5619 |
DOI | 10.12116/j.issn.1004-5619.2023.430317 |
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Abstract | R89%DF795.1%D919.1; 目的 利用傅里叶变换红外光谱术(Fourier transform infrared spectroscopy,FTIR)对不同病理变化阶段的心肌梗死组织进行光谱分析,以实现对急性和陈旧性心肌梗死的法医病理学诊断.方法 以苏木精-伊红(hematoxylin-eosin,HE)染色和免疫组织化学(immunohistochemistry,IHC)染色结果为参考依据,采集冠状动脉粥样硬化性心脏病猝死组左心室前壁的早期缺血心肌、坏死心肌、心肌纤维化组织以及正常对照组心肌的FTIR数据,使用多元统计分析方法进行数据分析.结果 对照心肌、早期缺血心肌和坏死心肌的平均归一化光谱较为相似,但平均二阶导数光谱存在较大差异,早期缺血心肌中各蛋白质二级结构的峰强度均明显高于其他类型心肌,坏死心肌α-螺旋的峰强度最低.心肌纤维化组织平均归一化光谱的酰胺Ⅰ和酰胺Ⅱ峰位明显向高波数方向移动,酰胺Ⅱ和酰胺Ⅲ的峰强度高于其他各类型心肌,平均二阶导数光谱在1 338、1 284、1 238和1 204 cm-1处峰强度明显增强.主成分分析(principal component analysis,PCA)和偏最小二乘-判别分析(partial least square-discriminant analysis,PLS-DA)结果显示,FTIR可区分不同类型的心肌组织.结论 FTIR技术具有对急性和陈旧性心肌梗死诊断的潜力,为心脏性猝死的死因分析提供了一种新的依据. |
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AbstractList | R89%DF795.1%D919.1; 目的 利用傅里叶变换红外光谱术(Fourier transform infrared spectroscopy,FTIR)对不同病理变化阶段的心肌梗死组织进行光谱分析,以实现对急性和陈旧性心肌梗死的法医病理学诊断.方法 以苏木精-伊红(hematoxylin-eosin,HE)染色和免疫组织化学(immunohistochemistry,IHC)染色结果为参考依据,采集冠状动脉粥样硬化性心脏病猝死组左心室前壁的早期缺血心肌、坏死心肌、心肌纤维化组织以及正常对照组心肌的FTIR数据,使用多元统计分析方法进行数据分析.结果 对照心肌、早期缺血心肌和坏死心肌的平均归一化光谱较为相似,但平均二阶导数光谱存在较大差异,早期缺血心肌中各蛋白质二级结构的峰强度均明显高于其他类型心肌,坏死心肌α-螺旋的峰强度最低.心肌纤维化组织平均归一化光谱的酰胺Ⅰ和酰胺Ⅱ峰位明显向高波数方向移动,酰胺Ⅱ和酰胺Ⅲ的峰强度高于其他各类型心肌,平均二阶导数光谱在1 338、1 284、1 238和1 204 cm-1处峰强度明显增强.主成分分析(principal component analysis,PCA)和偏最小二乘-判别分析(partial least square-discriminant analysis,PLS-DA)结果显示,FTIR可区分不同类型的心肌组织.结论 FTIR技术具有对急性和陈旧性心肌梗死诊断的潜力,为心脏性猝死的死因分析提供了一种新的依据. |
Abstract_FL | Objective Fourier transform infrared spectroscopy(FTIR)was used to analyze myocardial infarction tissues at different stages of pathological change to achieve the forensic pathology diagnosis of acute and old myocardial infarction.Methods FTIR spectra data of early ischemic myocardium,ne-crotic myocardium,and myocardial fibrous tissue in the left ventricular anterior wall of the sudden death group of atherosclerotic heart disease and the myocardium of the normal control group were col-lected using hematoxylin-eosin(HE)and immunohistochemistry(IHC)staining as a reference,and the data were analyzed using multivariate statistical analysis.Results The mean normalized spectra of control myocardium,early ischemic myocardium and necrotic myocardium were relatively similar,but the mean second derivative spectra were significantly different.The peak intensity of secondary struc-ture of proteins in early ischemic myocardium was significantly higher than in other types of myocar-dium,and the peak intensity of the α-helix in necrotic myocardium was the lowest.The peaks of amide Ⅰ and amide Ⅱ in the mean normalized spectra of myocardial fibrous tissue significantly shifted towards higher wave numbers,the peak intensities of amide Ⅱ and amide Ⅲ were higher than those of other types of myocardium,and the peak intensities at 1 338,1 284,1 238 and 1 204 cm-1 in the mean second derivative spectra were significantly enhanced.Principal component analysis(PCA)and partial least square-discriminant analysis(PLS-DA)showed that FTIR could distinguish different types of myocardium.Conclusion FTIR technique has the potential to diagnose acute and old myocardial in-farction,and provides a new basis for the analysis of the causes of sudden cardiac death. |
Author | 廖信彪 田甜 张吉 张付 张建华 黄平 邓恺飞 陈忆九 |
AuthorAffiliation | 司法鉴定科学研究院 上海市法医学重点实验室 司法部司法鉴定重点实验室 上海市司法鉴定专业技术服务平台,上海 200063;山西医科大学法医学院,山西 晋中 030600%广东省公安厅刑事技术中心 法医病理学公安部重点实验室,广东 广州 510050%司法鉴定科学研究院 上海市法医学重点实验室 司法部司法鉴定重点实验室 上海市司法鉴定专业技术服务平台,上海 200063 |
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Author_FL | LIAO Xin-biao ZHANG Jian-hua HUANG Ping ZHANG Fu ZHANG Ji TIAN Tian DENG Kai-fei CHEN Yi-jiu |
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DocumentTitle_FL | Forensic Pathological Diagnosis of Acute and Old Myocardial Infarction Using Fourier Transform Infrared Spectroscopy |
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Keywords | Fourier transform infrared spectroscopy(FTIR) 主成分分析 急性心肌梗死 forensic pathology 傅里叶变换红外光谱术 陈旧性心肌梗死 偏最小二乘-判别分析 法医病理学 principal component analysis acute myocardial infarc-tion old myocardial infarction partial least square-discriminant analysis |
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Title | 傅里叶变换红外光谱术用于急性及陈旧性心肌梗死的法医病理学诊断 |
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