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'''De La Chapelle Syndrome''' (also known as '''XX Male Syndrome''') is an [[intersex]] variation that effects one in every 20,000 [[AMAB]] or [[CTM]] births in which an individual has |
'''De La Chapelle Syndrome''' (also known as '''XX Male Syndrome''' or '''46, XX Testicular Disorder''') is an [[intersex]] variation that effects one in every 20,000 [[AMAB]] or [[CTM]] births in which an individual has [[müllerian]] chromosomes (XX chromosomes) however they have a [[wolffian]] appearance outwardly.<ref>https://en.wikipedia.org/wiki/XX_male_syndrome</ref><ref>https://medlineplus.gov/genetics/condition/46xx-testicular-disorder-of-sex-development/</ref> |
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Most with this variation [[Agenital|have small testicles or a missing testicle]] or a urethra opening that is on a unusual spot of the genitals ([[hypospadias]].) On rare occasion, one with this variation may have [[Ambiguous Genitalia|ambiguous genitals]]. Because of this, they may have [[AMAB Hypogonadism]]. |
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In about 80% of individuals with De La Chapelle Syndrome, the variation results from an abnormal exchange of genetic material between chromosomes while they were forming in the uterus, which causes the individual to have no Y chromosomes, or only partial Y chromosomes. |
In about 80% of individuals with De La Chapelle Syndrome, the variation results from an abnormal exchange of genetic material between chromosomes while they were forming in the uterus, which causes the individual to have no Y chromosomes, or only partial Y chromosomes. |
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Many with this variation tend to be shorter than average and infertile, however with testosterone treatments ([[Hormone Replacement Therapy|HRT]]) one may have a higher chance at a more natural flow of growth during puberty. |
Many with this variation tend to be shorter than average and infertile, however with testosterone treatments ([[Hormone Replacement Therapy|HRT]]) one may have a higher chance at a more natural flow of growth during puberty.<ref>https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/xx-male-syndrome</ref> |
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It is important to note that not all the symptoms listed in this page are guaranteed to occur in someone with this variation, as someone may only experience one or several of these symptoms, yet still hold the variation. |
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A similar intersex variation is [[SERKAL Syndrome]]. |
A similar intersex variation is [[SERKAL Syndrome]]. |
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It is unknown when De La Chapelle Syndrome was discovered, however it has been recorded since 1987. |
It is unknown when De La Chapelle Syndrome was discovered, however it has been recorded since 1987. |
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== References == |
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<references /> |
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* https://en.wikipedia.org/wiki/XX_male_syndrome |
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* [https://medlineplus.gov/genetics/condition/46xx-testicular-disorder-of-sex-development/ https://medlineplus.gov/genetics/variation/46xx-testicular-disorder-of-sex-development/] |
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* https://www.orpha.net/consor/cgi-bin/Disease_Search.php?Disease(s)%2Fgroup+of+diseases=De-la-Chapelle-syndrome&Disease_Disease_Search_diseaseGroup=393&Disease_Disease_Search_diseaseType=ORPHA&data_id=5546&lng=EN&search=Disease_Search_Simple&title=De-la-Chapelle-syndrome |
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* https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/xx-male-syndrome |
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[[Category:Intersex Traits]] |
[[Category:Intersex Traits]] |
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[[Category:Flagless Sexes]] |
[[Category:Flagless Sexes]] |
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Revision as of 00:08, 9 October 2021
De La Chapelle Syndrome (also known as XX Male Syndrome or 46, XX Testicular Disorder) is an intersex variation that effects one in every 20,000 AMAB or CTM births in which an individual has müllerian chromosomes (XX chromosomes) however they have a wolffian appearance outwardly.[1][2]
Most with this variation have small testicles or a missing testicle or a urethra opening that is on a unusual spot of the genitals (hypospadias.) On rare occasion, one with this variation may have ambiguous genitals. Because of this, they may have AMAB Hypogonadism.
In about 80% of individuals with De La Chapelle Syndrome, the variation results from an abnormal exchange of genetic material between chromosomes while they were forming in the uterus, which causes the individual to have no Y chromosomes, or only partial Y chromosomes.
Many with this variation tend to be shorter than average and infertile, however with testosterone treatments (HRT) one may have a higher chance at a more natural flow of growth during puberty.[3]
A similar intersex variation is SERKAL Syndrome.
History
It is unknown when De La Chapelle Syndrome was discovered, however it has been recorded since 1987.