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Journal of Pediatric Genetics is an English multidisciplinary peer-reviewed international journal publishing articles on all aspects of genetics in childhood and of the genetics of experimental models. These topics include clinical genetics, molecular genetics, biochemical genetics, formal genetics, neuropsychiatric genetics, behavioral genetics, community genetics, cytogenetics, hereditary or syndromic cancer genetics, genetic mapping, reproductive genetics, fetal pathology and prenatal diagnosis, multiple congenital anomaly syndromes, and molecular embryology of birth defects.
Journal of Pediatric Genetics provides an in-depth update on new subjects, and current comprehensive coverage of the latest techniques in the diagnosis of childhood genetics.
Journal of Pediatric Genetics encourages submissions from all authors throughout the world.
The following articles will be considered for publication: editorials, original and review articles, short report, rapid communications, case reports, letters to the editor, and book reviews. The aim of the journal is to share and disseminate knowledge between all disciplines that work in the field of pediatric genetics.
Abstract: Urorectal septum malformation sequence is a sporadic malformation due to failure of septation of primitive cloaca with no anal opening. Umbilical cyst can be associated with chromosomal aneuploidy such as trisomy 18 or trisomy 13. We report on a fetus with complete urorectal septum malformation sequence with an umbilical cyst resulting from a patent urachus and with meconium as its content. This report adds to the variety of the causes of umbilical cyst and the spectrum of consequences of urorectal septal defect.
Abstract: In this study, we report two patients with the supernumerary marker chromosome (15)s. The first case is an 8.5-year-old girl with an inv dup (15) syndrome, mental retardation and dysmorphic features. The second case is a 13-year-old boy with a ring chromosome 15, who was referred to the Laboratory of Cytogenetic and Biology of Reproduction in Sousse, Tunisia for mental retardation, epilepsy, speech delay, hypotonia and other mild dysmorphic features. R banding showed the presence of a marker chromosome in both cases. Molecular cytogenetic investigation using fluorescence in situ hybridization method allowed us to characterize the markers including the Prader-Willi…syndrome locus that contains the small nuclear ribonucleoprotein polypeptide N (SNRPN) gene. Tetrasomy and trisomy for the 15q11-q13 chromosomal region were found in the first and the second patient, respectively. This observation reinforces the hypothesis that additional copies of proximal chromosome 15q11 segment may be causally related to mental retardation and dysmorphic features.
Keywords: Mental retardation, inv dup (15) syndrome, ring chromosome 15 syndrome, FISH