1.Influencing Factors of Horizontal Movement Distance of Bodies in High Falling Deaths.
Yu DU ; Ya-Nan LIU ; Shao-Pu CHEN ; Li-Na ZHENG ; Zhi-Hao WANG
Journal of Forensic Medicine 2022;38(3):314-318
OBJECTIVES:
To explore the influencing factors of the horizontal distance of bodies in the high falling scene and the feasibility of inferring the falling mode based on it.
METHODS:
A total of 614 high falling deaths and 15 cases of corpse dumping from high altitudes were collected. The relationship between the horizontal distance and the falling height, as well as the sex, age and manner of death (suicide, accident and corpse dumping) were observed.
RESULTS:
The horizontal distance increased with the increase of falling height, and the difference among the height groups was statistically significant. The horizontal distance decreased with the increase of the age of the deceased, in each height group, the difference between the group over 60 years old and other age groups was statistically significant (P<0.05). The horizontal distance of male deceased was (1.99±0.27) m, which was greater than that of female deceased (1.88±0.19) m, and the difference was statistically significant in partial height groups (P<0.05). Roof falls had a greater horizontal movement distance than window falls. Except for the >20-30 m group, there was no significant difference in horizontal distance between suicide high falls and accidental high falls in other height groups.
CONCLUSIONS
The horizontal distance is affected by the falling height, the sex and age of the victim, and the spatial characteristics of the falling starting point.
Body Height
;
Cadaver
;
Female
;
Homicide
;
Humans
;
Male
;
Middle Aged
;
Suicide
2.Forensic Examination of Six Homicide Injection Cases.
Yu-Lei YANG ; Dong-Chuan ZHANG ; Kai-Jun MA
Journal of Forensic Medicine 2022;38(3):324-327
OBJECTIVES:
To retrospectively analyze homicide cases of death after injection and provide reference for forensic identification.
METHODS:
Six homicide cases of death after injection which were investigated by the Criminal Investigation Team of Shanghai Public Security Bureau were collected and analyzed, including case situation, scene investigation, autopsy and other materials.
RESULTS:
The 6 cases were premeditated crimes, 5 cases took place in private spaces, and 5 cases involved the victims approached by suspects' decoy. There were no obvious abnormalities at the scene of the 6 cases. In 6 cases, the victim's body surface injury was mild or no, lividity color was abnormal, and the needlestick injury showed different manifestations from conventional medical measures.
CONCLUSIONS
Death after injection is a highly concealed crime and easy to be ignored. For the suspected injection injury found in autopsy, it is necessary to carefully examine, identify and analyze, be alert to the situation of injecting poison (drug) and do a good job in evidence fixation and material extraction.
Autopsy
;
China/epidemiology*
;
Homicide
;
Poisons
;
Retrospective Studies
8.Retrospective Analysis of 73 Hanging and Ligature Strangulation Cases.
Zhi Yun PI ; Yu Ming XING ; Bao Wen CHENG
Journal of Forensic Medicine 2020;36(1):61-65
Objective To retrospectively analyze 40 cases of hanging and 33 cases of ligature strangulation in Kunming, to explore the neck injury characteristics and similarities and differences of related asphyxia signs of corpses in hanging and ligature strangulation cases, in order to provide reference for forensic identification. Methods Statistics of hanging and ligature strangulation cases accepted by Kunming Municipal Public Security Bureau from 2000 to 2017 were collected. Data including the gender, age, injury tool, neck injury and related asphyxia signs of the deceased in hanging and ligature strangulation cases were statistically tested by SPSS 23.0. Results There were more males in hanging cases than females. However, there were more females than males in ligature strangulation cases. In hanging cases, suicide was common, while homicide was rare. In ligature strangulation cases, homicide was common, while suicide or accidental death was rare. The average age of the deceased in hanging cases were older than those in ligature strangulation cases. The ligature mark in hanging was usually above the thyroid cartilage. The ligature mark in ligature strangulation was usually at the same level of the thyroid cartilage. The most common vital reactions were exfoliation and subcutaneous hemorrhage at the ligature mark, common among the deceased in hanging cases. Hyoid fracture rate of the deceased in ligature strangulation cases was more common than those in hanging cases. Conclusion The gender, age distribution, position of ligature mark, detection rate of vital reactions at the ligature mark and hyoid fracture rate of the deceased can help distinguish hanging from ligature strangulation.
Asphyxia
;
Female
;
Homicide
;
Humans
;
Male
;
Neck Injuries
;
Retrospective Studies
;
Suicide
;
Thyroid Cartilage
9.Human Immunity Against Campylobacter Infection
Immune Network 2019;19(6):38-
Campylobacter is a worldwide foodborne pathogen, associated with human gastroenteritis. The efficient translocation of Campylobacter and its ability to secrete toxins into host cells are the 2 key features of Campylobacter pathophysiology which trigger inflammation in intestinal cells and contribute to the development of gastrointestinal symptoms, particularly diarrhoea, in humans. The purpose of conducting this literature review is to summarise the current understanding of: i) the human immune responses involved in the elimination of Campylobacter infection and ii) the resistance potential in Campylobacter against these immune responses. This review has highlighted that the intestinal epithelial cells are the preliminary cells which sense Campylobacter cells by means of their cell-surface and cytosolic receptors, activate various receptors-dependent signalling pathways, and recruit the innate immune cells to the site of inflammation. The innate immune system, adaptive immune system, and networking between these systems play a crucial role in bacterial clearance. Different cellular constituents of Campylobacter, mainly cell membrane lipooligosaccharides, capsule, and toxins, provide protection to Campylobacter against the human immune system mediated killing. This review has also identified gaps in knowledge, which are related to the activation of following during Campylobacter infection: i) cathelicidins, bactericidal permeability-increasing proteins, chemokines, and inflammasomes in intestinal epithelial cells; ii) siglec-7 receptors in dendritic cell; iii) acute phase proteins in serum; and iv) T-cell subsets in lymphoid nodules. This review evaluates the existing literature to improve the understanding of human immunity against Campylobacter infection and identify some of the knowledge gaps for future research.
Acute-Phase Proteins
;
Antigen-Presenting Cells
;
Campylobacter Infections
;
Campylobacter
;
Cathelicidins
;
Cell Membrane
;
Chemokines
;
Cytosol
;
Dendritic Cells
;
Epithelial Cells
;
Gastroenteritis
;
Guillain-Barre Syndrome
;
Homicide
;
Humans
;
Immune System
;
Inflammasomes
;
Inflammation
;
T-Lymphocyte Subsets
;
Toll-Like Receptors
10.Therapeutic Interventions in Adult Low-Grade Gliomas.
Majid CHAMMAS ; Fadi SAADEH ; Maya MAALIKI ; Hazem ASSI
Journal of Clinical Neurology 2019;15(1):1-8
Treating adult low-grade gliomas (LGGs) is particularly challenging due to the highly infiltrative nature of this type of brain cancer. Although surgery, radiotherapy, and chemotherapy are the mainstay treatment modalities for LGGs, the optimal combination management plan for a particular patient based on individual symptoms and the risk of treatment-induced toxicity remains unclear. This review highlights the competency and limitations of standard treatment options while providing an essential therapeutic update regarding current clinical trials aimed at implementing targeted therapies with morbidity rates lower than those for current LGG treatments and also augmenting the killing of cancerous cells while maintaining an improved quality of life.
Adult*
;
Brain Neoplasms
;
Drug Therapy
;
Glioma*
;
Homicide
;
Humans
;
Quality of Life
;
Radiotherapy

Result Analysis
Print
Save
E-mail