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51.
Osuna E Pérez-Cárceles MD Moreno M Bedate A Conejero J Abenza JM Martínez P Luna A 《Forensic science international》2000,108(3):205-213
Deaths from the effects of alcohol intoxication are encountered routinely in forensic practice. In an important number of cases difficulty may arise in interpreting the significance of results obtained in the autopsy. In clinical practice biochemical markers, particularly serum gamma-glutamyl-transpeptidase (GGT), alanine aminotransferase (ALT), aspartate transaminase (AST), carbohydrate-deficient transferrin (CDT), and erythrocyte mean corpuscular volume are used to diagnose heavy alcohol consumption. CDT is used as a reliable and specific marker. In postmortem diagnosis, because of the difficulty in interpreting blood alcohol levels and relatively non-specific pathological features, biochemical compounds have been studied for use as possible markers. The aim of this study was to evaluate the usefulness of the postmortem determination of CDT in vitreous humor as a confirmation of antemortem alcoholism. CDT levels were studied in 66 male cadavers with a mean age of 55.9 years (S.D. 17.0, range 22-87 years) with a mean postmortem interval of 17.9 h (S.D. 11.4, range 4-72 h). Cases were assigned to two diagnostic groups according to the antemortem diagnosis of alcoholism. Statistically significant differences were found for CDT and ALT concentrations between the two diagnostic groups. The highest vitreous humor levels of CDT and ALT were obtained in the group of cases with a previous diagnosis of alcoholism. Our results suggest that vitreous humor CDT levels are useful in cases where the postmortem diagnosis of alcoholism is hindered by the non-specificity of data. 相似文献
52.
Diagnostic efficacy of biochemical markers in diagnosis post-mortem of ischaemic heart disease 总被引:2,自引:0,他引:2
Pérez-Cárceles MD Noguera J Jiménez JL Martínez P Luna A Osuna E 《Forensic science international》2004,142(1):1-7
In forensic medicine, there is a need for more sensitive biochemical markers for the post-mortem diagnosis of acute myocardial infarction. A study of the distribution of biochemical markers in different fluids is of great significance in post-mortem diagnosis, because their distribution depends on the location of tissue damage and release kinetics. The aim of this study is to compare the sensitivities and specificities of creatine kinase-MB (CK-MB), myoglobin and cTnI in serum and pericardial fluid for the post-mortem diagnosis of acute myocardial infarction (AMI). We studied 188 cadavers selected during 1 year from medicolegal autopsies. The groups were as follows: (1) myocardial infarction (n = 52); (2) asphyxia (n = 59); (3) multiple trauma (n = 41); (4) natural deaths excluding myocardial infarction (n = 36). We obtained statistically significant differences in pericardial fluid for all the biochemical markers, the highest levels being obtained in the group of cadavers who had died from myocardial infarction. A common factor is the high negative predictive value found in biochemical markers, which is contrary to the findings obtained in clinical practice, when the percentages of sensitivity are very high. 相似文献
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Postmortem vitreous humor beta-hydroxybutyrate: its utility for the postmortem interpretation of diabetes mellitus 总被引:1,自引:0,他引:1
Osuna E Vivero G Conejero J Abenza JM Martínez P Luna A Pérez-Cárceles MD 《Forensic science international》2005,153(2-3):189-195
Ketoacidotic coma is one of the most serious complications arising from diabetes mellitus, especially type I, and may be the cause of sudden death especially in diabetes type I. Since beta-hydroxybutyrate (beta-OHB) serum concentrations might provide more information on the severity of ketoacidosis, the aim of this study was to evaluate the concentrations of beta-OHB in vitreous humor and its correlation with other biochemical parameters during postmortem examination. We intended to ascertain the sensitivity and the specificity of these markers for diagnosing diabetes mellitus and the presence of ketoacidosis. This study involved 453 cadavers with a mean age of 57.6 years (S.D. 20.7) and a mean postmortem interval of 17.8 h (S.D. 9.6, range 2-61 h). Cases were assigned to two diagnostic groups according to the antemortem diagnosis of diabetes mellitus, based on the patients' medical records. In vitreous humor statistically significant differences were found in biochemical marker concentrations between the two diagnostic groups, the highest values being obtained in the group of subjects with a previous diagnosis of diabetes mellitus. The measurement of beta-OHB in vitreous humor may be a useful alternative to using blood during postmortem analysis. The presence of high levels of beta-OHB may help interpret the cause of death in diabetics when the autopsy result is negative. 相似文献
55.
In a previous paper (M. López-Nicolás et al., Forensic Sci. Int., 45 (1990) 143-150) we obtained a model of multiple regression to estimate age using computerized image analysis (IBAS) to study teeth. This method should provide more precise measurements of the parameters involved and to test this hypothesis we have carried out a blind study using more than one tooth from the same individual in order to check the diagnostic accuracy of the method. Our results show that individual variability introduced serious errors in tooth age estimation using computerized image analysis. However the study of more than one tooth per individual improves the accuracy of age estimation. Specific cases should therefore be interpreted cautiously, as a degree of variability can be expected using the parameters defined in this method. 相似文献
56.
J A Lorente C Hernández-Cueto E Villanueva J D Luna 《Journal of forensic sciences》1990,35(6):1367-1372
The authors have studied the usefulness of some lung surfactant phospholipids (LSPs) isolated from lung tissues as markers of drowning. Two different groups of rabbits were sacrificed by drowning in fresh and salt water, and their phospholipid compositions were compared with those of a non-drowned control series. For the phospholipids studied in lung lavages (phosphatidyl choline, phosphatidyl ethanolamine, and phosphatidyl glycerol) the proportions differed between the control group and the drowned group, and between the fresh-water and salt-water drowned animals. According to these results, the lipids we have analyzed can be employed as markers in forensic autopsies, where it is necessary to differentiate between death by drowning and postmortem immersion and between fresh-water and salt-water drowning. In lung tissue, only phosphatidyl choline and phosphatidyl inositol showed significative differences. These results also confirm that LSPs are strongly affected in drowning. 相似文献
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