Zhonghua nan ke xue = National journal of andrology · 2007
[Clinical, molecular and cytogenetic studies on 4 patients with 46, XX (SRY positive) male syndrome].
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Xia Xin-Yi, Cui Ying-Xia, Lu Hong-Yong, Yang Bin, Wang Guo-Hong, Pan Lian-Jun, Hou Bao-Shan, Ge Yi-Feng, Shao Yong, Yao Bing, Huang Yu-Feng
Аннотация
OBJECTIVE: To analyze the clinical, molecular and cytogenetic features of 46, XX (SRY positive) male syndrome.
METHODS: The clinical features of 4 patients with 46, XX (SRY positive) male syndrome were analyzed retrospectively. Karyotyping, FISH, PCR amplification of the SRY gene, and Y-chromosome microdeletion were performed to study their molecular cytogenetic features.
RESULTS: The Four patients were all sociopsychologically males of short stature and came to hospital for infertility. Physical examination revealed that their testes were small in volume and soft in texture, but their penes were normal. Semen analyses showed complete azoospermia. Detection of serum sexual hormone suggested hypergonadotropic hypogonadism. All were karyotyped as 46, XX. Molecular analyses revealed the presence of the SRY gene and absence of AZFa, b and c of the Y chromosome. FISH analysis showed that SRY genes were translocated to Xp in 3 of the patients.
CONCLUSION: Phenotypically 46, XX (SRY positive) male patients are males generally, for the presence of the SRY gene in the whole genome and azoospermia due to the deletion of AZF. The clinical characteristics of the patient include testis dysgenesis, infertility and short stature. The long arm of the Y chromosome might contain the gene associated with body height. Extensive molecular and cytogenetic studies on 46, XX male syndrome may help to elucidate its genotype-phenotype relation.
METHODS: The clinical features of 4 patients with 46, XX (SRY positive) male syndrome were analyzed retrospectively. Karyotyping, FISH, PCR amplification of the SRY gene, and Y-chromosome microdeletion were performed to study their molecular cytogenetic features.
RESULTS: The Four patients were all sociopsychologically males of short stature and came to hospital for infertility. Physical examination revealed that their testes were small in volume and soft in texture, but their penes were normal. Semen analyses showed complete azoospermia. Detection of serum sexual hormone suggested hypergonadotropic hypogonadism. All were karyotyped as 46, XX. Molecular analyses revealed the presence of the SRY gene and absence of AZFa, b and c of the Y chromosome. FISH analysis showed that SRY genes were translocated to Xp in 3 of the patients.
CONCLUSION: Phenotypically 46, XX (SRY positive) male patients are males generally, for the presence of the SRY gene in the whole genome and azoospermia due to the deletion of AZF. The clinical characteristics of the patient include testis dysgenesis, infertility and short stature. The long arm of the Y chromosome might contain the gene associated with body height. Extensive molecular and cytogenetic studies on 46, XX male syndrome may help to elucidate its genotype-phenotype relation.