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Review
. 2001 Nov-Dec;32(6):559-66.
doi: 10.1016/s0188-4409(01)00322-8.

46,XX sex reversal

J C Zenteno-Ruiz  1 , S Kofman-Alfaro, J P Méndez
Affiliations
Review

46,XX sex reversal

J C Zenteno-Ruiz et al. Arch Med Res. 2001 Nov-Dec.

Abstract

In humans, sexual differentiation is directed by SRY, a master regulatory gene located at the Y chromosome. This gene initiates the male pathway or represses the female pathway by regulating the transcription of downstream genes; however, the precise mechanisms by which SRY acts are largely unknown. Moreover, several genes have recently been implicated in the development of the bipotential gonad even before SRY is expressed. In some individuals, the normal process of sexual differentiation is altered and a sex reversal disorder is observed. These subjects present the chromosomes of one sex but the physical attributes of the other. Over the past years, considerable progress has been achieved in the molecular characterization of these disorders by using a combination of strategies including cell biology, animal models, and by studying patients with these pathologic entities.

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