[Exhumations procedures for investigating the genetic link in bones].
OBJECTIVE
To identify technical problems in exhumations performed for DNA detection in bones and to propose solutions through a protocol.


METHODS
A prospective and qualitative study of exhumations was carried out according to the methods proposed in the medical legal literature. From 1995 to 1998, were performed 10 exhumations to collect human remains for DNA extraction. Of them, seven cases were of civil interest and three of criminal. Alternatives were sought to overcome technical difficulties found during the execution of these procedures.


RESULTS
For all cases, there was scarcity of useful information to identify the human remains. In half of them, identification was based on the individual's morphological characteristics, given by their relatives. Individual morphological characteristics contributed to identification in 50% of cases. In three cases, it was possible to determine only the sex, and in one of them, only the age. Lack of infrastructure and police security in the cemeteries impaired the examination.


CONCLUSIONS
To assure the reliability of the DNA molecular examination, it is necessary to identify the individual to whom the exhumed mortal remains belonged. To an efficacious investigation, it is paramount to have a working protocol that will cover, among other issues, those concerning identification, infrastructure and staff safety at the site of examination.
Melki
J A
JA
Centro de Medicina Legal, Departamento de Patologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.
Martin
C C
CC
Simões
A L
AL
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001842:Bone and Bones / Q000737:chemistry*; D004247:DNA / Q000032:analysis*; D005260:Female; D018732:Forensic Anthropology / Q000379:methods*; D005554:Forensic Medicine / Q000379:methods; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D011446:Prospective Studies
D004247:DNA
Procedimentos em exumações para investigação de vínculo genético em ossos.