Publications by authors named "Nishiguchi Minori"

Article Synopsis
  • Japan utilizes various death investigation systems that consistently include external examinations and advanced techniques like postmortem computed tomography and both macroscopic and microscopic examinations to uncover abnormalities.
  • In cases where traditional examinations don't reveal a cause of death due to non-morphological disorders, molecular autopsy and postmortem genetic analyses become essential for identifying inherited conditions that could lead to sudden death, particularly in younger individuals.
  • The review highlights specific molecular autopsy cases from Japan, explores the connection between drug-related deaths and genetic variants, and advocates for the regular inclusion of molecular autopsies in death investigations to potentially save lives.
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RBM20 is one of the genes predisposing to dilated cardiomyopathy (DCM). Variants in the RS domain have been reported in many DCM patients, but the pathogenicity of variants within the RNA-recognition motif remains unknown. Two human patients with the I536T-RBM20 variant without an apparent DCM phenotype were identified in sudden death cohorts.

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A fatal poisoning case involving etizolam, phenobarbital, promethazine and chlorpromazine is presented. Quantitative toxicological analysis showed that the concentrations of etizolam, phenobarbital, promethazine and chlorpromazine in the femoral blood were 86 ng/ml, 5082 microg/ml, 0.107 microg/ml and 0.

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We present a case of fatal carbamazepine poisoning. Quantitative analysis of carbamazepine using high performance liquid chromatography, revealed that the concentrations of carbamazepine were 50.2 microg/ml in the femoral venous blood and 60.

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We report here a sudden death case of a patient previously diagnosed as Marfan syndrome (MFS). The victim was dead on the wheel and the cause of death was diagnosed to be a rupture of the thoracic aorta by autopsy findings. MFS is an autosomal dominant disorder of the connective tissue and can be a cause of sudden death.

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Energy dispersive X-ray fluorescence spectrometry (EDX) enables rapid, non-destructive, multi-elemental analysis. Using EDX, bromide was detected in seawater but not in freshwater. We applied EDX to the detection of bromide in cardiac blood from medico-legal autopsy cases to obtain additional evidence supportive of seawater drowning.

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In spite of the inhibitory effects of ethanol (EtOH) on platelet function, soft blood clots are often observed in cadaveric blood in cases of sudden death after alcohol ingestion. In order to resolve this discrepancy, we have focused on the role of vascular endothelial cells. We tried to investigate the effects of EtOH and LPS on endothelial cells from various perspectives; thrombogenic factor (Von Willebrand factor, VWF), fibrinolytic factor (tissue plasminogen activator, tPA) and inflammatory factor (Interleukin-6, IL-6).

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The authors have previously shown that high alcohol preference rats (HAP) have a significantly higher sensitivity than low alcohol preference rats (LAP) for methamphetamine (MAP). In this study, changes in dopamine and serotonin release induced by MAP (1 mg/kg, intraperitoneally) after pre-treatment with D1 and D2 receptor antagonists were examined in the striatum of rats with different alcohol preferences to elucidate differences in receptor levels between the two rat strains. D1 receptor antagonist SCH23390 or D2 receptor antagonist haloperidol were administrated intracerebroventricularly 10 min before MAP stimulation.

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Energy dispersive X-ray fluorescence spectrometry (EDX) enables rapid, non-destructive, multi-elemental analysis. Using EDX, lead and some other metallic elements were detected in paraffin-blocks in which skin samples from a gunshot wound were embedded. Lead was not identified in control samples from non-injured cases.

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Personal identification is an essential subject in forensic practice. With skeletonized remains, an anthropological examination is performed for personal identification. Here we describe the positive identification of skeletonized human remains from the serial numbers of implanted metallic plate and screws.

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We describe here the usefulness of analysis of tracheal contents in a case of death by fire, which revealed that the deceased had used the accelerants. The analysis of tracheal contents provides useful information for the determination of the circumstances of the scene.

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Article Synopsis
  • The study applied energy dispersive X-ray fluorescent spectrometry (EDXRF) to examine two autopsy cases involving bromvalerylurea ingestion.
  • EDXRF effectively detected bromide in the blood, urine, and stomach contents of the victims, demonstrating its utility in forensic analysis.
  • The research highlights EDXRF as a valuable, non-destructive tool for rapid elemental analysis in identifying drugs during medico-legal investigations.
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Article Synopsis
  • A case study is presented involving sudden death due to a ruptured splenic artery aneurysm.
  • The analysis of the tissue revealed that the aneurysm's formation was linked to fibromuscular dysplasia.
  • This highlights a serious health risk associated with this vascular condition.
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A case of fatal poisoning involving ethanol with psychotropic drugs is presented. Quantitative toxicological analysis showed that the concentrations of ethanol, amoxapine and phenobarbital in the femoral blood were 2.86 mg/ml, 0.

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A case of fatal poisoning involving clomipramine, chlorpromazine and flunitrazepam is presented. Quantitative toxicological analysis showed that the concentrations of clomipramine, chlorpromazine and 7-aminoflunitrazepam (a metabolite of flunitrazepam) in the femoral blood were 3.24 microg/ml, 0.

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Background: Asthma is the one of the major causes of sudden death in Japan. Postmortem diagnosis of asthma has been based on morphological findings in lungs, but it histological evidence, was also reported that the biochemical markers such as total and specific immunoglobulin E (IgE) are useful.

Case Report: We present here a case of fatal asthmatic death.

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The deceased was a 75-year-old male, found dead in his home. He had a history of occupational asbestos exposure for 13 years. At autopsy, there was diffuse fibrosis of the lung, with diffuse pleural thickening.

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We present a fatal imipramine poisoning. Quantitative analysis of imipramine and its metabolite, desipramine, was performed by high-performance liquid chromatography. The concentrations of imipramine and desipramine were 18.

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We present here a case of sepsis due to infectious endocarditis in a methamphetamine abuser. A 32 year-old male presented high fever and abdominal pain last two weeks. He was admitted to the hospital on the diagnosis of infectious endocarditis.

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Aims And Methods: We have investigated proopiomelanocortin (POMC) and neuropeptide Y (NPY) gene expression in the arcuate nucleus of the hypothalamus comparing high alcohol preference (HAP) rats and low alcohol preference (LAP) rats under basal conditions using in situ hybridization histochemistry.

Results: A significantly higher expression of POMC mRNA was observed in HAP rats compared with LAP rats. In contrast, no difference in NPY mRNA expression was observed between the two rat lines.

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