法医学中的性别鉴定

对用形态学、细胞学、性激素检测、 DNA重组技术和聚合酶链式反应（ PCR）等方法进行性别鉴定进行了概述,显示骨骼的性别鉴定以形态学方法为好;对能获得足够量基因组 DNA的人体组织,最好用 PCR检测牙釉基因。而检测性染色质因阳性率较低,检测性激素仅适用于血痕检材, DNA分子杂交技术需要复杂的仪器及放射性同位素标记的探针,这些方法目前已较少应用。     

放射影像学在法医学同一认定中的应用

应用放射影像学进行同一认定是法医放射学重要的研究方向之一。本文通过阐述放射影像学在法医学同一认定中的应用范围、历史性回顾、可用于同一认定标志的类型、注意事项和今后发展方向，为进一步完善放射影像学在法医学同一认定中的应用提供参考。     

颅脑外伤后假性癫痫的法医学鉴定

通过对2例颅脑外伤后假性癫痫的法医鉴定案例的分析,总结假性癫痫发作的临床特点及外伤后假性癫痫发作与外伤性癫痫发作的鉴别要点。其法医学鉴定应结合颅脑外伤的程度、部位、颅内有无后遗病灶及临床发作特点等综合分析。     

A DNA-based approach for the forensic identification of Asiatic black bear (Ursus thibetanus) in a traditional Asian medicine

Attempts to prevent illegal trade in bile and gallbladders from Asiatic black bears, Ursus thibetanus, are hampered by difficulties associated with identifying such items. We extracted DNA from bile crystals of unknown species origin and generated partial cytochrome b (cyt b) sequences using either universal primers (positioned in conserved regions of cyt b), or primers designed on existing U. thibetanus sequences (UT). Species origin was determined by aligning resolved sequences to reference sequence data. The universal primers were unsuitable for U. thibetanus identification when multiple species templates were present in the samples. The UT primers amplified U. thibetanus DNA from all sample extracts, including those containing mixed species templates. The amplified fragment can distinguish U. thibetanus from the most closely related species, U. americanus, a distinct advantage of DNA sequencing over the methods currently used to analyze suspected U. thibetanus bile.     

Standardization in forensic medicine

It is for the first time that an issue is raised on the need to introduce a system of standardization into the forensic medical field. A general scheme is suggested of how to do it.     

The use of moxibustion scars in the identification of individuals in forensic medicine

The use of moxibustion today does not only take place in Eastern Asia, but recently also in Europe and the United States. Moxibustion scars are often seen in autopsy cases in Japan. However, no reports of the use of moxibustion in autopsy cases have been reported. This paper reports on an autopsy case in which moxibustion scars were used to extrapolate on the past symptoms of the deceased, date of therapy and the location of the moxibustion clinic which administered the moxibustion.     

新冠肺炎等传染病与法医学鉴定评述

新冠肺炎致死或引发的其他法律纠纷可能涉及法医学病理解剖或者法医临床学鉴定。在日常法医学解剖中时有遇到因传染性疾病死亡患者的尸体,法医鉴定机构及鉴定人应当有风险识别意识,充分认识到在解剖、检查这类尸体时的被传染风险。法医鉴定人需要采取充分有效的防护措施。由于新冠肺炎属于新型传染性疾病,相关研究成果、信息资料更新快,鉴定中的信息参考要慎重选择。同时本文对因传染性疾病死亡患者的尸体解剖中常见的职业伦理、知情同意、保险理赔和环境保护等问题进行讨论。     

Myocardial sarcoidosis in forensic medicine

Sudden death is the most common manifestation of myocardial sarcoidosis, which is often clinically silent. The disease is rarely encountered in forensic medicine, but the diagnosis is important because it may change the interpretation of the manner of death and thus have insurance implications. Six cases of myocardial sarcoidosis diagnosed at autopsy are reported, and the significance of the findings is discussed.     

Cigarette burns in forensic medicine

Skin lesions suspected to have been caused by a burning cigarette require thorough diagnostic evaluation as to the mode of infliction. Accidental cigarette burns must be differentiated from injuries due to self-infliction or maltreatment. The typical categories are presented on the basis of the literature and exemplary cases from the authors' own study material. An intentional infliction must be taken into consideration when a body region is involved which does not normally come into contact with a cigarette by chance. Full thickness burns from glowing cigarettes require an exposure time of more than 1s. One should also keep in mind the possibility of confusion with local skin infections or thermal effects by traditional medical practices (e.g. moxibustion). In unclear cases, repeated inspection of the lesion is recommended in order to facilitate its classification as to causation and age. The courses of healing in first- to third-degree cigarette burns are demonstrated by means of continuous photographic documentation. The discussion deals with different kinds of accidental and intentional cigarette burns, e.g. in drug addicts, psychiatric patients, victims of child abuse, maltreatment and torture, but also in persons feigning a criminal offence.     

Case histories in forensic medicine

Case histories make up a great part of publications in forensic medicine, especially forensic pathology, although considered low on the hierarchy of evidence based medicine because of its inherent anecdotal nature. Meanwhile some journals exclude case histories categorically from publication. The boom of case histories in forensic medicine has not only opportunity reasons (easily [even mental] and cheap to do) but also structural reasons: due to its tasks in case work many items of forensic medicine can not be simulated experimentally for ethical reasons (violent death, traumatic injuries, sexual assault, poisonings, influence of alcohol and drugs on driving ability and legal responsibility, medical malpractice, adverse events during medical care). In these fields the role of case histories is mainly the augmentation of experience based knowledge. However, quality aspects have to be considered and case histories should be the basis for systematic or hypothesis based research.     

Pharmacokinetic features in forensic medicine

As a rule, the concentration curves of substances in various body volumes, in particular in plasma and blood volume, can be reproduced by a number of exponentional functions. A compartment system can be isomorphically assigned to such a representation in which a mass exchange takes place between the constituent volumes. In forensic medicine (toxicology), the "central compartment model" is used in which an exchange of substances between the blood space (central compartment) and the peripheral spaces (peripheral compartments) takes place. Characteristic parameters of the compartment models are their volumes and the intercompartmental mass flows or their rate constants. They can be determined from the mathematical representations of the concentration curves. It is possible to obtain knowledge on the properties (e.g. permeability) of the convectional/diffusional transcapillary transport on the basis of these parameters.     

The significance of inner ear fluid (perilymph) in forensic medicine (author's transl)]

An original method for collecting the perilymph in the inner ear by chiselling the pyramid of the temporal bone is presented; From 300 to 350 mul of fluid may be obtained each time. Various types of determination were performed on 399 human cadavers. The alcohol level was tested in 140 cases, the ABO(H) group antigens were determined in 89 cases, the phenotypes of the gamma-globulin (1) group system in 152 cases, and the alpha1-antitrypsin (Pi) system in 18 cases. Determinations of the alcohol level in the perilymph has been confirmed to be useful, as they allow not only determination of the degree of intoxication in cadavers in an advanced state of decomposition, but also by comparing the alcohol concentration in the cerebrospinal fluid, the vitreous humour, and the blood, the phases of elimination and absorption of alcohol may be more precisely determined. It was also found that the perilymph is a good medium for the determination of the group antigens of the red blood-cells and the gamma-globulin system, the serum and the alpha1-antitrypsin enzyme. These data suggest that the method may be more widely used in various forensic medical tests.     

甲基苯丙胺滥用相关死亡分析

近年来,随着甲基苯丙胺在青中年中滥用呈上升趋势,相关的死亡案件亦增多。本文从现场情况、临床过程、解剖检验、实验室检验以及研究现状等方面,对滥用甲基苯丙胺死亡加以综述,为法医工作者鉴别此类案件提供参考。     

Gait analysis in forensic medicine*

Recordings from video surveillance systems are used as evidence from crime scenes. It would be useful to perform comparisons between disguised perpetrators and suspects based on their gait. We applied functional anatomical and biomechanical knowledge to analyze the gait of perpetrators, as recorded on surveillance video. Using a structured checklist, which addresses the single body segments during gait, we were able to give a statement concerning the gait patterns. Characteristic parameters were, e.g., varus instability in the knee at heel strike, and larger lateral flexion of the spinal column to one side than the other. Based on these characteristic features, we are able to state with reasonable certainty whether the suspect could be the perpetrator, but it is not possible to identify the perpetrator positively. Nevertheless, we have been involved in several cases where the court has found that this type of gait analysis was a valuable tool.