DNA analyses of XX and XX-hypospadiac males. 1992

H Numabe, and S Nagafuchi, and Y Nakahori, and T Tamura, and H Kiuchi, and M Namiki, and N Kohda, and Y Fukushima, and H Fuse, and M Kusano
Department of Congenital Abnormalities Research, National Children's Medical Research Center, Tokyo, Japan.

Fourteen 46,XX "males" were analyzed by Southern blot hybridization with seventeen different Y chromosome-derived DNA probes and by the polymerase chain reaction for an additional two sites on the short arm of Y. Eight 46,XX males possessed various segments of the short arm of the Y chromosome, including the sex determining region. The detected segments ranged from the two most distal loci to nearly the entire length of the short arm, viz., 10 out of 11 loci. None of the eight patients had hypospadia. Five out of the six remaining cases had hypospadia and no Y sequence was detected, suggesting the presence of a causative difference between hypospadiac and non-hypospadiac groups.

UI MeSH Term Description Entries
D007021 Hypospadias A birth defect due to malformation of the URETHRA in which the urethral opening is below its normal location. In the male, the malformed urethra generally opens on the ventral surface of the PENIS or on the PERINEUM. In the female, the malformed urethral opening is in the VAGINA. Hypospadia
D007223 Infant A child between 1 and 23 months of age. Infants
D007621 Karyotyping Mapping of the KARYOTYPE of a cell. Karyotype Analysis Methods,Analysis Method, Karyotype,Analysis Methods, Karyotype,Karyotype Analysis Method,Karyotypings,Method, Karyotype Analysis,Methods, Karyotype Analysis
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D002874 Chromosome Mapping Any method used for determining the location of and relative distances between genes on a chromosome. Gene Mapping,Linkage Mapping,Genome Mapping,Chromosome Mappings,Gene Mappings,Genome Mappings,Linkage Mappings,Mapping, Chromosome,Mapping, Gene,Mapping, Genome,Mapping, Linkage,Mappings, Chromosome,Mappings, Gene,Mappings, Genome,Mappings, Linkage
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA

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