Utilidad de electroforesis capilar en las repeticiones cortas en tándem de los tallos del cabello en una escena del crimen

Abstract

Introduction: Currently, within forensic medicine, the gold standard method for DNA analysis and in particular for short tandem Repeats (STR), are the polymerase chain reaction (PCR) and capillar electrophoresis (CE), which has been used for 20 years, and has allowed the creation of data base of genetic profiles of criminales, suspects and defendants around the world, which is implemented in criminal investigations. Objetive: Characterize capillar electrophoresis in short tandem repeats of hair shats, through the systematic review of scientific articles of the last five years, for identification of perpetrator of a crime. Materials and methods: Scientifi articles of quartile 1 adn 2 the last five years were collected, through has logical deductive approach, of a descriptive type, of a non-experimental design. Conclusion: Capillary electrophoresis in the analysis of short tandem repeats (STR) of hair shafts, due to its easy use, automation, versatility and simplicity of its files, and together with a forensic probabilistic base, became a powerful and very useful for the identification of suspects at crimen scene, thus being able to discriminate and exclude a genetic profile of an individual in a random population of another, between one in billon just by analyzing 13 STR loci.