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CNS & Neurological Disorders - Drug Targets


ISSN (Print): 1871-5273
ISSN (Online): 1996-3181

Research Article

Sialuria-Related Intellectual Disability in Children and Adolescent of Pakistan: Tenth Patient Described has a Novel Mutation in the GNE Gene

Author(s): Hina Ishtiaq, Sonia Siddiqui*, Rukhsana Nawaz, Khawar Saeed Jamali and Abdul Ghani Khan

Volume 19 , Issue 2 , 2020

Page: [127 - 141] Pages: 15

DOI: 10.2174/1871527319666200213115747

Price: $65


Background: Sialuria is a rare inborn error of metabolism caused by excessive synthesis of sialic acid due to the mutation in the binding site of the cytidine monophosphate-sialic acid of UDPGlcNAc 2-Epimerase/ManNAc Kinase (GNE/MNK).

Objective: This is the first study investigating the molecular basis of neuronal disorders exhibiting sialuria in Pakistani children/adolescents.

Methods: The current study genotyped GNE SNPs rs121908621, rs121908622 and rs121908623 by using PCR, RFLP, and DNA sequencing methods. Socioeconomic and clinical histories were also recorded.

Results: Our data suggest that clinical symptoms and financial status play a significant role in conferring sialuria related Intellectual Disability (ID). SNP: rs121908623 showed G/A substitution (R263Q) in the GNE gene.

Conclusion: We have identified one case study in Pakistan, so this makes our research a leap forward towards the identification of the 10th case study worldwide.

Keywords: Sialuria, intellectual disability, single nucleotide polymorphism, arginine (R), glutamine (Q), metabolic error.

Graphical Abstract
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