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Citometría de flujo y sexaje de espermatozoides en animales / Flow cytometry and sperm sexing in animals
Salinas, Paulo.
  • Salinas, Paulo; Universidad Santo Tomás. Escuela de Medicina Veterinaria. Laboratorio de Anatomía Veterinaria. Temuco. CL
Int. j. med. surg. sci. (Print) ; 3(3): 893-902, sept. 2016.
Article in Spanish | LILACS | ID: biblio-1087451
RESUMEN
Actualmente, cientos de crías se han gestado a través de inseminación artificial conespermatozoides sexados en producción animal. Desde 1992 se utiliza la citometría de flujo, técnica que permite diferenciar espermatozoides X e Y según su contenido de ADN. No existe, hasta el momento, ninguna otra técnica práctica para sexar espermatozoides manteniendo la capacidad fecundante. Los objetivos de esta revisión son explicar (1) por qué los espermatozoides que contienen el cromosoma X o Y son similaresfenotípicamente, pero a la vez mantienen diferencias entre ellos, (2) los principios y procedimientos utiliza-dos para sexar espermatozoides mediante citometría de flujo y sorting (3) la precisión, velocidad y la eficiencia de los procedimientos actuales de sexaje espermático, (4) el daño espermático ocurrido durante el sexaje espermático y consecuentemente los efectos sobre la fecundidad.
ABSTRACT
Flow cytometry is a useful technology in the sexed sperm, which measures and analyzes simultaneously, multiple physical characteristics of the cell, as they flow in a stream flow, through a lightbeam. The measured properties are the size of a particle, relative internal granularity, relative complexity and relative fluorescence intensity. Currently, hundreds of calves have been gestated through artificial insemination with sexed sperm in animal production. Since 1992, flow cytometry has been used, a technique that allows spermatozoa X and Y differentiation by DNA content. There is no other practical technique forsperm sexing to keep sperm functionality. The objectives of this review are to explain (1) why the sperm containing the X or Y chromosome are phenotypically similar, but differ among themselves, (2) the principlesand procedures used for sexing sperm by flow cytometry and sorting ( 3) accuracy, speed and efficiency ofcurrent procedure sperm sexing, (4) sperm damage occurred during sperm sexing and consequently the effects on fertility.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Sex Preselection / Spermatozoa / Flow Cytometry Limits: Animals Language: Spanish Journal: Int. j. med. surg. sci. (Print) Journal subject: Surgery / Medicine Year: 2016 Type: Article Affiliation country: Costa Rica Institution/Affiliation country: Universidad Santo Tomás/CL

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Full text: Available Index: LILACS (Americas) Main subject: Sex Preselection / Spermatozoa / Flow Cytometry Limits: Animals Language: Spanish Journal: Int. j. med. surg. sci. (Print) Journal subject: Surgery / Medicine Year: 2016 Type: Article Affiliation country: Costa Rica Institution/Affiliation country: Universidad Santo Tomás/CL