A case report on holt-oram syndrome (heart-hand)
Publish place: ARYA Atherosclerosis، Vol: 7، Issue: 2
Publish Year: 1390
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_RYA-7-2_008
تاریخ نمایه سازی: 3 شهریور 1401
Abstract:
BACKGROUND: The Holt-Oram Syndrome (HOS) or the Heart-Hand syndrome is consideredas an overt autosomal hereditary disease with a complete influential effect and variableexpression that emerges due to a genetic mutation. It can be vividly characterized by heartdisorders and deficiencies in hand structure. Despite the existing genetic heterogeneity, thevariable integration between HOS and the T-BX۵ gene from the T-BOX Gene Complex has beenobserved during which various mutations have been reported in the affected patients. The TBOXGene Complex is located on chromosome ۱۲ (۱۲ q ۲۴.۱), and is able to encode a copyingfactor. That has a conservative motive with ۱۸۰ amino acids. The deficiencies in only ۱/۳ ofpatients have been observed caused by the mutation of this gene.CASE REPORT: This case was a ۱۰-year-old child with hand disorders, incompletegrowth of clavicle, moving problems in elbow joint and shoulder, disorder in ventricle andauricle walls. The disease was diagnosed as HOS, based on clinical examination and drawing thefamily tree diagram. It was impossible to investigate molecular mutation due to inaccessibilityto the patient.CONCLUSION: By investigating the family members and their deficiencies and imagingdisorder variables according to different reports as well as parents’ state of health, the HOS canbe defined as an overt heredity resulting from a new mutation in the germinating layer of sexualcells in one of the parents. There is a weak possibility that the disease results from a mosaicmutation in the male parent’s testicle or the female parent’s ovum. In this case, the probabilityfor the disease to be repeated in parents’ next children will be guessed between ۱ and ۵۰%.Keywords: Holt-Oram Syndrome, Hand- Heart Syndrome, T-BOX
Authors
Gholam Reza Nourzad
PhD, Assistant Professor, Department of Biology, School of Science, Hormozgan University, Hormozgan
Mahnaz Baghershiroodi
MSc, Department of Genetics, Center of Molecular Medicine Research, School of Medicine, Hormozgan University of Medical Sciences, Hormozgan