Forensic Analysis of Sudden Death Associated with Sexual Activity.

Objectives: To analyze the characteristics of sudden death associated with sexual activity to provide recommendations for forensic identification.

Methods: A retrospective analysis was conducted on autopsy cases accepted by Forensic Identification Center of Huazhong University of Science and Technology from 1998 to 2018, and a total of 15 cases of sudden death associated with sexual activity were screened out. The general information, case data and pathological changes of 15 cases were collected to find the relationship between sexual activity and sudden death.

[Changes of cyclin D1 expression following human brain contusion].

Objective: To study the relationships of Cyclin D1 expression with the posttraumatic intervals (PTI) following the cerebra, brainstem or cerebella contusion in human.

Methods: 88 cases of brain contusions of the closed head injury were investigated with pathological and Cyclin D1 immunohistochemistry methods. The results were analyzed by image analysis technique (IAT).

[Relationship between expression of nestin in experimental brain contusion and injury time].

Objective: To observe the alteration of nestin intervals in the experimental traumatic brain injury and investigate its relation to the injury intervals.

Methods: The rat brain contusion was conducted by falling impact injury. After various survival interval (0.

[A primary study on the ARP-SRP gene expression profiling of brain injury by cDNA microarray].

Objective: To screen the differential expression of apoptosis-related protein and stress response protein(APR-SRP) genes after human brain injury by cDNA microrarray.

Methods: The total RNAs were isolated from normal and injured brain tissues of a car-accident victim, and were purified to obtain mRNAs by Oligotex. Both mRNAs from the tissues of the injured and the normal tissue were reversely transcribed to cDNAs with the incorporation of fluorescent dUTP to prepare the hybridization probes.

[The mast cell and trauma].

Mast cell(MC) takes an important role in trauma and the process of wound healing, and the pathophysiology reaction has a relationship to the time since trauma, which is helpful to determine the post-trauma and postmortem interval, and to distinguish the wound shaped whether before or after death. In this paper, the role of MC and its chemic medium in the process of wound healing, scar shaping, postburns inflammatory response, healing of bone fracture, as well as the signification for forensic medicine and the progress of researching in this field were reviewed.