Forensic study of measuring non-linear length in plane using pixel method / 中国法医学杂志

Objective To explore a method of forensic identification work in the non-linear length of the plane. Methods 10 soldering tin wires with different lengths were cut out accurately and the results were read as a control (direct reading method of steel ruler). Then the ten soldering tin wires with different lengths were randomly bent and then calculated by the method studied in this paper The length as a Pixel group, and two sets of data for statistical analysis. Results The difference between the results obtained by the Pixel method and those directly read by the ruler direct reading method was not statistically significant. Conclusion The Pixel method has obvious advantages over the traditional cotton method in measuring the non-linear length of the plane (such as scars and wounds). The calculated length is more accurate and easy to operate, making the forensic identification more accurate and convincing Adapt to the requirements of litigation, forensic identification in the good prospects.

Clinical, histopathological and genetic studies in a case of fatal familial insomnia / 中华神经科杂志

ObjectiveTo explore clinical,histopathological and genetic features in a case of fatal familial insomnia (FFI) and related literatures were reviewed. Methods The clinical features in one patient with FFI were analyzed,and the dead patient was examined at autopsy and histopathological studies were performed on the brain tissues; and the blood samples from the patient and some of her familial members were collected for the sequencing of prion protein gene (PRNP). Results The main clinical features included intractable insomnia,psychiatric symptoms and abnormal night sleep behavior,unsteady gait,difficulty swallowing,sudden death,and positive family history. The pathological studies showed multiple neuronal loss and gliosis of brain tissues from the proband,predominated in thalamus; and analysis of PRNP revealed gene D178N mutation,and linkage with 129 methionine (Met) allele in the proband and a relative.ConclusionsFFI patients may manifest as sudden death,and may have prominent psychiatric symptoms; the corresponding gene mutation could occur in the asymptomatic carriers; the data of autopsy and brain tissue pathology is helpful for further understanding of this disease.

Reform and exploration on forensic toxicology teaching / 中华医学教育探索杂志

As a core curriculum of forensic medicine,it is of great importance to improve the quality of forensic toxicological education for cultivating high-quality forensic professionals.Basing on the rich experiences of forensic teaching and expertise,well teaching effects were achieved by the reform and explorations in teaching contents and methods,development of curriculum and teachers as well as other aspects aimed to improving the quality of forensic toxicological teaching.

The various links of the university talent introduction / 中华医学教育探索杂志

Talent introduction is of great significance for the development of universities and for the raising of the academic standards.Talent introduction in general includes three links,namely,planning,the policy supporting and the concrete implementation.In the supporting policies of the talent introduction various relations should be properly handled,such as the new talents and the old talents relations,the relationship between the introduction and cultivation and the relationship between the high-level personnel and the conventional talents.

Quantity Evaluation and Its Stimulative Role in the Promotion of the Employees / 中华医学教育探索杂志

Quantity evaluation is one of inspiring means, whose essence is to put into practice the effective external stimulation for inner motivation.Its purpose is to inspire potential, to bring all people's best into full play and to raise the performance of employees. The process of quantity evaluation is also the process of developing employee's potential.Besides quantity evaluation is good for judgement and examination of the title of technical post, in favor of outstanding personnel shaping, optimization and collocation of human resources. This will make personnel management work more scientific and standardized.

Talk about comprehensive and systematic medicolegal autopsy and prevent of common failures / 中国法医学杂志

Forensic autopsy is an important link in the medicolegal expertise and the foundation and prerequisite to ensure the quality of the medicolegal expertise.Although there is a rarticularity for each au- topsy case,it is the basic requirement to make great effort to do comprehensive and systcmatic autopsy. The limited definition of comprehensive and systemic autopsy is referred to the examination not only in the cranial,thoracic and abdominal cavitv,but also in special sites such as spinal cavity and peripheral nerve if necessary.The general definition of it includes both the aforementioned examination and the collection and preservation of the proper,adequate and reliable samples and material evidences.The common failures are as follows:①The detail of a case is not clear that leads to wrong plan of autopsy.②The blind autopsy be- cause insufficient preparation.③The examination is lopsided as the partial autopsy.④The operation of autopsy is not conformed to the operational standard.⑤A careless observation causes the omission of intop- sy and pathological changes.⑥The examinational description is not accurate and the records and pictures of autopsy are not clear.⑦Material evidences and samples collected are not suitable to show the truth of the autopsied case.

Immunohistochemical study of endothelin in early acute myocardial ischemia in rats / 中国法医学杂志

Objective Study the expression of endothelin(ET) of ischaemic myocardium in rat. Method Sixty Wistar rats were randomly divided into 5 groups: coronary artery simply-ligated group,drug-pre-treated group(Isoproterenol,Pituitrin),coronary atherosclerotic group,sham-operated group(as control group). The samples were cut at 15min,30min,45min,60min,90min,120min after coronary (left anterior descending) ligation, and stained with HE and strept avidin-biotin enzyme complex(SABC)method. Results The expression of endothelin was observed with light microscope. Ischaemic myocardium showed ET-positive staining at the early stage of acute myocardial ischaemia in different groups and more in the pre-treated group. Conclusion the SABC-ET method may provide a new marker for diagnosing early myocardial ischaemia, which will be helpful in confirming the cause of sudden coronary death(SCD).

PATHOLOGICAL STUDY OF SUDDEN CORONARY DEATH——REPORT OF 128 AUTOPSY CASES / 中国法医学杂志

This paper reports the results of forensic pathological study of 128 autopsycases of sudden coronary death(SCD).The severity of the coronary arterystenosis was 4 degree in 63 cases,3 degree in 26 cases and 2 degree in 39 cases.The distribution of the artheroscleorosis of 3 and 4 degree was quite extensive. Recent thrombosis in CA was found in 18 cases,hemorrhage in plaques in 17cases.Only 2 cases had acute myocardial infarction.Inflammatory cell infil-tration were found in coronary plaques in 36 cases.Myocardail fibrosis orsmall scar formation were detected in 56 cases.It is suggested that SCD isthe commonest cause of sudden unexpected death.The majority of SCD(61%)were manhood in middle age.Most cases died suddenly during sleep withoutany clear inducements.The characteristics of the pathological changes in theCA and myoc ardium and the pathological diagnosis of SCD were analyzedand discussed.

IMMUNOHISTOCHEMICAL STUDY OF MYOGLOBIN DEPLETION FROM MYOCARDIUM IN THE CASES OF SUDDEN CORONARY DEATH / 中国法医学杂志

Myoglobin (Mb)depletion from myocardium in the cases of sudden soronary death (SCD) and was firstly studied by an immunhistochemial technique (ABC method) in China. Mb was detected quantitatively using scanning microscope photmeter and the results were analyzed statistically by computer The results showed that there were marked depletion of Mb from myocardium in each case of SCD The Mb depleted arce were multiple, disseminatly and segmentally distributed while no depletion of Mb from myocardium in the cases of control group was seen We suggested that the depletion of Mb can be used as one of the diagnostic criterion in the cases of SCD.