Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 107 (1994), S. 29-33 
    ISSN: 1437-1596
    Keywords: Alpha-1-antichymotrypsin ; Alpha-2-macroglobulin ; Lysozyme ; Immunohistochemistry Wound age ; Alpha-1-Antichymotrypsin ; Alpha-2-Makroglobulin ; Lysozym ; Immunhistochemie Wundalter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Die Verteilung der Proteinasehemmer alpha-1-Antichymotrypsin (α-1-ACT) and alpha-2-Makroglobulin (α-2-M) sowie die Verteilung von Lysozym wurde in 27 intravitalen Hautwunden, drei postmortalen Hautwunden und in neun Entnahmen unverletzter Haut immunhistochemisch untersucht. Die intravitalen Wundränder zeigten mit allen untersuchten Antikörpern deutliche positive Reaktionen (α-1-ACT 66,6%; α-2-M 51,9%; Lysozym 25,9%). Der gegenüberliegende, vital unverletzte Hautrand wies jedoch bei diesen Entnahmen ebenfalls häufig schwache Reaktionen auf (α-1-ACT 51,8%; α-2-M 37,0%; Lysozym 25,9%). In nicht wenigen Fällen war diese Reaktion jedoch so stark, daß der vital unverletzte und erst durch die Hautprobenentnahme postmortal entstandene Schnittrand von der vital entstandenen Wunde nicht zu unterscheiden war (α-1-act 22,2%; α-2-M 29,6%, Lysozym 59,2%). In den Kontrollfällen (Entnahmen unverletzter Haut) fanden sich mit allen drei Antikörpern in nahezu der Hälfte der Fälle geringe positive Reationen, die jedoch aufgrund der Intensität nicht mit deutlich positiv reagierenden Hautwunden verwechselt werden konnten. Als Ursache der falsch positiven Farbreaktionen kommen artefizielle Verunreinigungen infolge Kontakts mit Serumbestandteilen, fortgeschrittene Autolyse des Präparates, Einflüsse der Fixierung und Vertrocknungen der Hautränder in Betracht. Die immunhistochemische Untersuchung von α-1-ACT, α-2-M und Lysozym ergibt zwar häufig Hinweis auf Vitalität einer Wunde, kann diese jedoch nicht beweisen, da eine sichere Differenzierung von richtig- bzw. falsch-positiven Reaktionen nicht in allen Fällen gelingt.
    Notes: Abstract The distribution of the proteinase inhibitors alpha-1-antichymotrypsin (α1-act), alpha-2-macroglobulin ((α-2-m) and lysozyme was analysed immunohistochemically in 27 intravitally acquired wounds, 3 postmortem skin lacerations and 9 specimens of undamaged skin. Intravitally acquired wounds demonstrated distinct positive reactions for all antibodies examined (α-1-act 66.6%; α-2-m 51.9%; lysozyme 25.9%). However the undamaged skin margins opposite the wound margins also gave positive reactions (a-l-act 51.8%; (α-2-m 37.0%; lysozyme 25.9%). Nearly half of the control cases (specimens of undamaged skin) exhibited weak positive reactions for all 3 antibodies. These could be easily distinguished from the strong positive reactions observed in intravitally acquired wounds. False positive reactions were observed due to contamination resulting from contact with serum components, in cases of advanced autolysis of specimens, and as a result of fixation and drying artefacts. Even though immunohistochemical studies of α-1-act, (α-2-m and lysozyme give some indications concerning wound vitality, they cannot be considered as proof because irrefutable differentiation of true positive and false positive reactions is not possible in all cases.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 110 (1997), S. 18-21 
    ISSN: 1437-1596
    Keywords: Key words Proteinase inhibitors ; Fibronectin ; Lysozyme ; Immunohistochemistry ; Autolysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Notes: Abstract The influence of postmortem damage of tissues on the immunohistochemical diagnosis of wound age has not as yet been clarified. We utilized antibodies against the proteinase inhibitors α-1-antichymotrypsin and α-2-macroglobulin, fibronectin and lysozyme to study samples of skin which had been intact intravitally, but were damaged postmortem either by autolysis or compression with a surgical clamp at the time of dissection. Even in the absence of autolysis, antibodies against the proteinase inhibitors and fibronectin exhibited staining of tissue margins. Autolysis caused an increase in false positive results. In contrast, antibodies against lysozyme did not give false positive staining. There were no antigens sensitive to postmortem clamping and false positive results were not observed. Antibodies against proteinase inhibitors are not useful for the diagnosis of wound age because of a high number of false positive reactions in marginal areas. Fibronectin also showed false positive band-shaped staining patterns at the tissue margin. In addition, autolytic processes increase the number of false positives. The antibody against lysozyme is much less sensitive to autolysis and no false positive reactions were observed in our series of tests.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 110 (1997), S. 18-21 
    ISSN: 1437-1596
    Keywords: Proteinase inhibitors ; Fibronectin ; Lysozyme ; Immunohistochemistry ; Autolysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Notes: Abstract The influence of postmortem damage of tissues on the immunohistochemical diagnosis of wound age has not as yet been clarified. We utilized antibodies against the proteinase inhibitors α-1-antichymotrypsin and α-2-macroglobulin, fibronectin and lysozyme to study samples of skin which had been intact intravitally, but were damaged postmortem either by autolysis or compression with a surgical clamp at the time of dissection. Even in the absence of autolysis, antibodies against the proteinase inhibitors and fibronectin exhibited staining of tissue margins. Autolysis caused an increase in false positive results. In contrast, antibodies against lysozyme did not give false positive staining. There were no antigens sensitive to postmortem clamping and false positive results were not observed. Antibodies against proteinase inhibitors are not useful for the diagnosis of wound age because of a high number of false positive reactions in marginal areas. Fibronectin also showed false positive band-shaped staining patterns at the tissue margin. In addition, autolytic processes increase the number of false positives. The antibody against lysozyme is much less sensitive to autolysis and no false positive reactions were observed in our series of tests.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Rechtsmedizin 10 (2000), S. 182-186 
    ISSN: 1434-5196
    Keywords: Schlüsselwörter Rechtsmedizin ; Didaktik ; Ökologischer Kurs ; Unterrichtsevaluation ; Keywords Legal medicine ; Didactic ; Ecology course ; Evaluation of instruction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Abstract In the winter semester 1998/1999 the course of legal medicine included 26 h of obligatory teaching. The course consists of several seminars of 2 h and an accompanying lecture. The contents of the seminars included a practical execution of an external post-mortem examination, participation at an autopsy with recording of the findings and subsequent discussion, legal aspects of the medical profession as well as clinical-forensic opinions on injuries. The acceptance of the curriculum could be verified by a questionnaire filled out by the students. Of the 361 students, 72% participated in the survey. The course was graded with an average of 1.7 on an scale of 1–6. The answers on the structure and content of lectures were graded on a scale from 1 (not relevant) to 7 (relevant). The logical construction, organisation, presentation and interest value of the topics were graded with an average of 6 points. A continual evaluation is also planned for subsequent semesters.
    Notes: Zusammenfassung Der Kurs Rechtsmedizin an der Medizinischen Hochschule Hannover sah im Wintersemester 1998/99 für jeden Studierenden ¶26 Pflichtstunden vor. Er bestand aus mehreren 2-stündigen Seminaren und einer kursbegleitenden Vorlesung. Die Seminare hatten folgende Inhalte: Praktische Durchführung einer Leichenschau, Teilnahme an einer Sektion mit Protokollerstellung und Nachbesprechung, Berufsrecht und -kunde sowie klinische Rechtsmedizin mit Verletzungsbegutachtung. Zusammen mit den zusätzlichen Lehrangeboten umfasste die Lehre für das Fach Rechtsmedizin etwa 15 Semesterwochenstunden. Die Akzeptanz des Curriculums sollte durch eine Befragung der Studierenden überprüft werden. Von insgesamt 361 Studierenden beteiligten sich 72% an der Befragung. Auf einer Notenskala von 1–6 wurde der Kurs insgesamt mit der Durchschnittsnote 1,7 bewertet. Auf einer Skala von 1 (= trifft nicht zu) bis 7 (= trifft zu) wurden Aussagen zu Struktur und Inhalt von Vorlesungen und Seminaren eingeordnet. Mit einer durchschnittlichen Bewertung von über 6 Punkten wurden logischer Aufbau, Organisation, Anschaulichkeit und interessante Darbietung des Stoffes bewertet. Auch für die kommenden Semester ist eine kontinuierliche Lehrevaluation vorgesehen.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1437-1596
    Keywords: Key words Sudden infant death syndrome ; Prone ; position ; Face-down position ; Hypoxia ; Death-scene investigation ; Head covering
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Notes: Abstract We examined the position of the body and head, and the covering of the head by bedding on discovery in cases of sudden infant death (SID) in Lower Saxony. Between 1.1.1986 and 31.12.1992 structured, questionnaire-based interviews were carried out with parents of 140 SID victims. Control data were taken from a population-based cross-sectional study on infant sleeping position performed by the German Health Office (BGA) in autumn 1991. Of the SID cases 86.4% were discovered in the prone position [odds ratio (OR) = 7.4, 95% confidence interval (CI) = 4.3, 12.7] and 41.4% were found with the head covered. These infants were significantly older than those where the head was uncovered (p 〈 0.001) and covering of the head showed a significant association with a risk of SID (OR = 20.8; 95% CI = 11.5–37.6). Of the SID cases 27.9% were discovered in the face-down position. These infants were significantly younger than the infants who were discovered with the head in a side or supine position (p 〈 0.001). This study confirms the increased risk of SID associated with the prone position and suggests that this association could be related to the development of hypoxaemia or hypercapnia. Together with other factors such as heat stress or an infection, hypoxaemia or hypercapnia could culminate in SID if the arousal from sleep and auto-resuscitation apparently fails.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 113 (2000), S. 70-75 
    ISSN: 1437-1596
    Keywords: Key words Brain injury ; Cortical contusion ; GFAP ¶expression ; Immunohistochemistry ; Wound age
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Notes: Abstract The course of GFAP expression by astrocytes has been immunohistochemically investigated during the first 30 weeks after human brain injury. In order to provide reliable data for a forensic wound age estimation, a quantitative morphometric analysis was performed considering the different topographic regions of the cortex as well as of the white matter. Compared to the GFAP immunoreactivity in unaltered control tissue, significantly increased numbers of GFAP positive astroglial cells could be detected adjacent to the cortical contusion from 1 day up to 4 weeks after brain injury.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...