1
|
Xiong L, Zhang J, Li D, Yu H, Tian T, Deng K, Qin Z, Zhang J, Huang J, Huang P. FTIR microspectroscopy of renal tubules for the identification of diabetic ketoacidosis death. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
|
2
|
Heimer J, Gascho D, Thali MJ, Zoelch N. Fundamentals of in situ Postmortem Magnetic Resonance Spectroscopy of the Brain in the Forensic Framework - A Review and Outlook. FORENSIC IMAGING 2022. [DOI: 10.1016/j.fri.2022.200499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
3
|
Wu D, Luo YW, Zhang J, Luo B, Zhang K, Yu K, Liu RN, Lin HC, Wei X, Wang ZY, Huang P. Fourier-transform infrared microspectroscopy of pulmonary edema fluid for postmortem diagnosis of diabetic ketoacidosis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 258:119882. [PMID: 33964633 DOI: 10.1016/j.saa.2021.119882] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Determination of the cause of death for diabetic ketoacidosis (DKA), a common and fatal acute complication of diabetes mellitus, is a challenging forensic task owing to the lack of characteristic morphological findings at autopsy. In this study, Fourier-transform infrared (FTIR) microspectroscopy coupled with chemometrics was employed to characterize biochemical differences in pulmonary edema fluid from different causes of death to supplement conventional methods and provide an efficient postmortem diagnosis of DKA. With this aim, FTIR spectra in three different situations (DKA-caused death, other causes of death with diabetes history, and other causes of death without diabetes history) were measured. The results of principal component analysis indicated different spectral profiles between these three groups, which mainly exhibited variations in proteins. Subsequently, two binary classification models were established using an algorithm of partial least squares discriminant analysis (PLS-DA) to determine whether decedents had diabetes and whether the diabetic patients died from DKA. Satisfactory prediction results of PLS-DA models demonstrated good differentiation among these three groups. Therefore, it is feasible to make a postmortem diagnosis of DKA and detect diabetes history via FTIR microspectroscopic analysis of the pulmonary edema fluid.
Collapse
Affiliation(s)
- Di Wu
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, No. 76 West Yanta Rd., Xi'an, Shaanxi 710061, China; Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Ministry of Justice, No. 1347 West Guangfu Rd., Shanghai 200063, China
| | - Yi-Wen Luo
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Ministry of Justice, No. 1347 West Guangfu Rd., Shanghai 200063, China
| | - Ji Zhang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Ministry of Justice, No. 1347 West Guangfu Rd., Shanghai 200063, China
| | - Bin Luo
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-Sen University, No. 76 Zhongshan 2nd Rd., Guangzhou 510080, China
| | - Kai Zhang
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, No. 76 West Yanta Rd., Xi'an, Shaanxi 710061, China
| | - Kai Yu
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, No. 76 West Yanta Rd., Xi'an, Shaanxi 710061, China
| | - Rui-Na Liu
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, No. 76 West Yanta Rd., Xi'an, Shaanxi 710061, China
| | - Han-Cheng Lin
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, No. 76 West Yanta Rd., Xi'an, Shaanxi 710061, China
| | - Xin Wei
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, No. 76 West Yanta Rd., Xi'an, Shaanxi 710061, China
| | - Zhen-Yuan Wang
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, No. 76 West Yanta Rd., Xi'an, Shaanxi 710061, China.
| | - Ping Huang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Ministry of Justice, No. 1347 West Guangfu Rd., Shanghai 200063, China.
| |
Collapse
|
4
|
|
5
|
Heimer J, Gascho D, Odermatt R, Zoelch N, Kottner S, Thali M, Chatzaraki V. Full virtual autopsy in a case of a suicidal transthoracic gunshot injury. FORENSIC IMAGING 2020. [DOI: 10.1016/j.fri.2020.200368] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
6
|
Postmortem Determination of Short-Term Markers of Hyperglycemia for the Purposes of Medicolegal Opinions. Diagnostics (Basel) 2020; 10:diagnostics10040236. [PMID: 32325891 PMCID: PMC7235919 DOI: 10.3390/diagnostics10040236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/07/2020] [Accepted: 04/16/2020] [Indexed: 11/29/2022] Open
Abstract
Diabetes mellitus is classified as the epidemic of the 21st century. Due to the fact that acute carbohydrate metabolism disorders usually do not indicate morphological change, postmortem diagnosis is required to perform biochemical tests. The authors decided to evaluate the usefulness of determining glucose, lactate, acetone, β-hydroxybutyric acid (BHB), and 1,5-anhydroglucitol (1,5-AG) in postmortem blood/serum, urine, and vitreous humor (VH). Biological material was collected during autopsies. The study group consisted of 50 diabetics, while the control group consisted of 50 non-diabetics, who died a sudden death, with negative test results for the presence of ethyl alcohol and were not resuscitated before death. Statistical analysis was performed using the IBM SPSS Statistics 25 software package. The most statistically significant difference between the two groups was observed for mean 1,5-AG concentration. The authors found many correlations between the concentration of the examined markers in different materials, mainly between blood/serum and VH. The most suitable short-term glycemic marker in postmortem diagnosis is 1,5-AG. Diagnosis may be supported with determinations of acetone and BHB. For medicolegal assessment, the interpretation of the biochemical test results should comprise information on circumstances of death, medical history, results of other toxicological and histopathological tests, and autopsy report.
Collapse
|
7
|
Pigaiani N, Bertaso A, De Palo EF, Bortolotti F, Tagliaro F. Vitreous humor endogenous compounds analysis for post-mortem forensic investigation. Forensic Sci Int 2020; 310:110235. [PMID: 32169668 DOI: 10.1016/j.forsciint.2020.110235] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 01/04/2023]
Abstract
The chemical and biochemical analysis of bodily fluids after death is an important thanatochemical approach to assess the cause and time since death. Vitreous humor (VH) has been used as a biofluid for forensic purposes since the 1960s. Due to its established relevance in toxicology, a literature review highlighting the use of VH with an emphasis on endogenous compounds has not yet been undertaken. VH is a chemically complex aqueous solution of carbohydrates, proteins, electrolytes and other small molecules present in living organisms; this biofluid is useful tool for its isolated environment, preserved from bacterial contamination, decomposition, autolysis, and metabolic reactions. The post-mortem analysis of VH provides an important tool for the estimation of the post-mortem interval (PMI), which can be helpful in determining the cause of death. Consequently, the present review evaluates the recent chemical and biochemical advances with particular importance on the endogenous compounds present at the time of death and their modification over time, which are valuable for the PMI prediction and to identify the cause of death.
Collapse
Affiliation(s)
- Nicola Pigaiani
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy.
| | - Anna Bertaso
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy.
| | - Elio Franco De Palo
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy
| | - Federica Bortolotti
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy
| | - Franco Tagliaro
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy; Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow, Russia
| |
Collapse
|
8
|
Heimer J, Gascho D, Madea B, Steuer A, Martinez RM, Thali MJ, Zoelch N. Comparison of the beta-hydroxybutyrate, glucose, and lactate concentrations derived from postmortem proton magnetic resonance spectroscopy and biochemical analysis for the diagnosis of fatal metabolic disorders. Int J Legal Med 2020; 134:603-612. [DOI: 10.1007/s00414-019-02235-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/11/2019] [Indexed: 12/27/2022]
|
9
|
Zoelch N, Hock A, Steuer AE, Heimer J, Kraemer T, Thali MJ, Gascho D. In situ postmortem ethanol quantification in the cerebrospinal fluid by non-water-suppressed proton MRS. NMR IN BIOMEDICINE 2019; 32:e4081. [PMID: 30835926 DOI: 10.1002/nbm.4081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
Determination of the ethanol concentration in corpses with MRS would allow a reproducible forensic assessment by which evidence is collected in a noninvasive manner. However, although MRS has been successfully used to detect ethanol in vivo, it has not been applied to postmortem ethanol quantification in situ. The present study examined the feasibility of the noninvasive measurement of the ethanol concentration in human corpses with MRS. A total of 15 corpses with suspected alcohol consumption before demise underwent examination in a 3 T whole body scanner. To address the partial overlap of the ethanol and lactate signal in the postmortem spectrum, non-water-suppressed single voxel spectra were recorded in the cerebrospinal fluid (CSF) of the left lateral ventricle via the metabolite cycling technique. The ethanol signals were quantified using the internal water as reference standard, as well as based on a reference signal acquired in a phantom. The measured values were compared with biochemically determined concentrations in the blood (BAC) and CSF (CSFAC). In 8 of the 15 corpses a BAC above zero was determined (range 0.03-1.68 g/kg). In all of these 8 corpses, ethanol was measured in CSF with the proposed MRS protocol. The two applied MRS calibration strategies resulted in similar concentrations. However, the MRS measurements generally overestimated the ethanol concentration by 0.09 g/kg (4%) to 0.72 g/kg (45%) as compared with the CSFAC value. The presented MRS protocol allows the measurement of ethanol in the CSF in human corpses and provides an estimation of the ethanol concentration prior to autopsy. Observed deviations from biochemically determined concentrations are mainly explained by the approximate correction of the relaxation attenuation of the ethanol signal.
Collapse
Affiliation(s)
- Niklaus Zoelch
- Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Switzerland
- Department of Psychiatry, Psychotherapy and Psychosomatics, Zurich University Hospital for Psychiatry, Switzerland
| | - Andreas Hock
- Department of Psychiatry, Psychotherapy and Psychosomatics, Zurich University Hospital for Psychiatry, Switzerland
- Institute for Biomedical Engineering, University and ETH Zurich, Switzerland
- Philips Healthcare Deutschland, Hamburg, Germany
| | - Andrea E Steuer
- Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Jakob Heimer
- Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Thomas Kraemer
- Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Michael J Thali
- Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Dominic Gascho
- Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Switzerland
| |
Collapse
|
10
|
Chatzaraki V, Heimer J, Thali M, Dally A, Schweitzer W. Role of PMCT as a triage tool between external inspection and full autopsy – Case series and review. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.jofri.2018.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
11
|
Barry D, Ellul S, Watters L, Lee D, Haluska R, White R. The ketogenic diet in disease and development. Int J Dev Neurosci 2018; 68:53-58. [DOI: 10.1016/j.ijdevneu.2018.04.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 03/31/2018] [Accepted: 04/15/2018] [Indexed: 02/08/2023] Open
Affiliation(s)
- Denis Barry
- Department of Anatomy Trinity Biomedical Sciences InstituteTrinity College DublinDublin, 2Ireland
| | - Sarah Ellul
- Department of Anatomy Trinity Biomedical Sciences InstituteTrinity College DublinDublin, 2Ireland
| | - Lindsey Watters
- Department of Anatomy Trinity Biomedical Sciences InstituteTrinity College DublinDublin, 2Ireland
| | - David Lee
- Department of Anatomy Trinity Biomedical Sciences InstituteTrinity College DublinDublin, 2Ireland
| | - Robert Haluska
- Department of BiologyWestfield State University577 Western AvenueWestfieldMA01085United States
| | - Robin White
- Department of BiologyWestfield State University577 Western AvenueWestfieldMA01085United States
| |
Collapse
|