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Effect of Arx(GCG)7 mutation in the olfactory bulb

Authors: Ruiz Serrano, Amalia;

Effect of Arx(GCG)7 mutation in the olfactory bulb

Abstract

La formación de la estructura del bulbo olfativo, organizada en diferentes capas interconectadas, está finamente controlada por multitud de factores. El trabajo previo de Yoshihara et al. demostró que el factor de transcripción Arx se requiere para el correcto desarrollo del bulbo olfativo. No obstante, este grupo realizó su estudio en ratones con una mutación Knock-out para Arx, la cual no se encuentra de forma natural en roedores o humanos. La mutación Arx(GCG) 7 es la mas frecuente en humanos y está relacionada con una encefalopatía epiléptica infantil denominada Síndrome de West. En el presente trabajo hemos estudiado el posible efecto de esta mutación en la morfología del bulbo olfativo para entender mejor esta patología. Los ratones macho Arx(GCG)7 con 18-21 dias de edad presentaron evidentes anomalías en la citoarquitectura del bulbo olfativo: (1) reducción del tamaño de la capa plexiforme interna, (2) pérdida de células periglomerulares tiroxina hidroxilasapositivas, (3) pérdida de células periglomerulares calbindina-positivas, y (4) reducción en el tamaño de los glomérulos de la capa glomerular. Por ello, concluimos que la correcta actividad de Arx es esencial para la generación y diposición de las interneuronas periglomerulares del bulbo olfativo y probablemente para una adecuada inervación axonal en la capa plexiforme interna.

Tutor: Manuel Álvarez Dolado y Co-Tutor: Ana Moral Rama.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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