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1.
Medical Principles and Practice. 2017; 26 (2): 195-198
em Inglês | IMEMR | ID: emr-187842

RESUMO

Objective: The aim of this work was to report a case of an Emirati child who presented with developmental delay and multiple congenital abnormalities that are consistent with distal arthrogryposis type 5D


Clinical Presentation and Intervention: The clinical presentation comprised contractures of the shoulders, elbows, and knees in addition to camptodactyly and neck pterygium. The facial dysmorphic features noted include ptosis and microretrognathia. Importantly, left orchidopexy was also observed and corrected surgically. Whole exome sequencing revealed that the patient is homozygous for the novel c.1184+1G>T variant in endothelin-converting enzyme-like 1 [ECEL1]


Conclusion: This is a case of a novel homozygous splice site mutation in the ECEL1 gene in a child with a phenotype consistent with distal arthrogryposis type 5D. The child was born to consanguineous Emirati parents heterozygous for the novel ECEL1 mutation

2.
Medical Principles and Practice. 2016; 25 (6): 580-582
em Inglês | IMEMR | ID: emr-184902

RESUMO

Objective: The aim of this study was to report clinical and molecular findings in an Emirati child with Marinesco-Sjogren syndrome born to consanguineous parents


Clinical Presentation and Intervention: The child presented with developmental delay, ataxia, bilateral cataracts, and dysmorphic craniofacial features, along with cerebellar atrophy. Sequencing of the SIL1 gene revealed a novel homozygous large indel mutation that was predicted to abrogate part of the 5' untranslated region [UTR] and the first 30 amino acids of the protein


Conclusion: This was a case of mutation in SIL1 that affected the 5' UTR, translation initiation site and the endoplasmic reticulum-targeting signal sequence. Further studies will be needed on the functional delineation of the mutation. aracts, and intellectual disability [1] . Although these are the main symptoms, there are a range of other clinical features associated with this condition in some families, including hypogonadotropic hypogonadism, skeletal abnormalities, and microcephaly [2]. The only gene known so far to be associated with MSS, SIL1, was discovered by two independent teams simultaneously [2, 3]. SIL1 plays a vital role in the translocation of proteins into the endoplasmic reticulum [ER]. Studies in mouse models have shown a function for SIL1 as a nucleotide exchange factor for the ER chaperone protein BiP, as well as in ER stressinduced apoptotic signaling and the ER-associated degradation [ERAD] pathway, again via its interaction with BiP [4, 5] . Hence, we report a consanguineous Emirati family affected with MSS with a novel mutation in the SIL1 gene

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