ESPE Abstracts

Introduction: A derivative chromosome (der) is a structurally rearranged chromosome generated either by a chromosome rearrangement involving two or more chromosomes or by multiple chromosome aberrations within a single chromosome. Balanced segmental anomalies such as inversion or translocation can lead to derivative chromosomes with partial duplication and deletion during meiosis. Here we present two patients with hypergonadotropic hypogonadism and various acc...

Background: However, no study has considered the effect of a supernumerary X chromosome on bone mineral status and bone metabolism.Objective and hypotheses: To evaluate bone mineral status and metabolism in a cohort of patients with nonmosaic triple X syndrome.Method: Nineteen girls (median age 10.9, range 7.7–15.9 years) with nonmosaic triple X syndrome were cross-sectionally studied and compared to an age- and body-size-matc...

Objective: to assess diagnostic usefulness and accuracy of different tools in patients with Kallmann syndrome and ichthyosis due to X-chromosome microdeletion.Materials: сongenital hypogonadotropic hypogonadism due to KAL1 pathological variants manifest with micropenis, cryptorchidism, delay of puberty, and not associated with disorder of sex development. This condition can be associated with ichthyosis due to deletion of X chromosome region with genes KAL...

Background: Pseudoisodicentric X chromosomes with an Xq deletion (46,X,idic(Xq)) are rare. Most cases are mosaic, the other cell line being 45,X. Nonmosaicism is rare. Phenotype is characterized by the resultant of the X deletion. Variations from short to tall stature can occur and premature ovarian failure is a common feature.Case presentation: A 16 year old girl was referred to our clinic with primary amenorrhoea. She ...

Background: The X linked adrenoleukodystrophy (X-ALD) is a peroxisomal disease caused by defects of the ABCD1 gene on chromosome Xq28. This disease is characterized by progressive neurologic dysfunction, and occasionally associated with adrenal insufficiency. The estimated frequency is about 1:42000 in male, whereas the estimated frequency for heterozygous women is 1:14000. There was no correlation between genotype and phenotype of X-ALD patients....

Adrenoleukodystrophy is an X-linked, inherited metabolic disorder. Here, we present 3 clinical cases of different phenotypes with one mutation in ABCD1 gene in one family.Patient 1: At the age of 9 years, manifestation of neurological symptoms was observed, skin color changed, these symptoms progressed monthly. MRI of the brain showed 13 points on Loes scale.During the examination, the diagnosis of X-linke...

Background: X-Linked Adrenoleucodystrophy (X-ALD) is a rare neurodegenerative disorder characterised by impaired peroxisomal beta-oxidation of very long chain fatty acids (VLCFA; ≧C22) which is reduced to about 30% of control levels. Consequently, there is an accumulation of VLCFA in plasma and tissues, including the white matter of the brain, the spinal cord and adrenal cortex. It is caused by mutation in the ABCD1 gene encoding a peroxisomal transmembrane protein (ALD...

Background: X-linked adrenoleukodystrophy (X-ALD) is caused by a defect in the gene ABCD1, which maps to Xq28 and codes for a peroxisomal membrane protein that is a member of the ATP-binding cassette transporter superfamily. This disease characterized by progressive neurologic dysfunction, occasionally associated with adrenal insufficiency.Objective and hypotheses: To identify mutations of gene ABCD1 in Vietnamese patients with X-ALD.</...

Introduction: X-linked adrenoleukodystrophy (X-ALD) is a rare autosomal recessive neurodegenerative disease caused by a mutation in the ABCD1 gene. Although its clinical presentation varies, X-ALD is generally characterized by progressive demyelination of the central nervous system, primer adrenal insufficiency, and elevated plasma very long-chain fatty acid (VLCFA) levels. Herein, we aimed to present a case of X-ALD with normal VLCFA caused by a path...

Background: DAX-1 (NR0B1) plays a key role in adrenal and reproductive development. It interacts with other nuclear receptors; however, its exact biological role remains unclear. In men most patients with X-linked adrenal hypoplasia congenita (AHC) present with acute adrenal failure. To date DAX-1 mutations have been found in more than 100 families or patients with X-linked AHC.Results: We report the case of a 2.5-year-old boy who presented with a histor...