Publications by authors named "Jhanvi Shah"

Purpose: Complex chromosomal rearrangements (CCRs) often remain unidentified as they are rarely observed in the general population. Females with CCRs are generally recognized on the identification of an affected child with multiple congenital anomalies (MCA) or having a history of repeated pregnancy loss/bad obstetric history (RPL/BOH). In contrast, males with CCRs are diagnosed primarily due to infertility.

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  • Rare disorders include about 7,500 different conditions that are challenging to diagnose due to a lack of specialized healthcare, testing facilities, and treatment options, particularly in countries like India with diverse population groups.
  • This study examined a cohort of 3,294 patients with 305 identified rare genetic diseases, primarily affecting the neuromuscular and neurodevelopmental systems, as well as inborn errors of metabolism.
  • The findings revealed that the most common diseases were Gaucher disease in the IEM category, and Duchenne muscular dystrophy and trinucleotide repeat expansion disorders in the NMND group, highlighting the need for more focused genetic research and healthcare resources in India.
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  • Autism spectrum disorder (ASD) has a growing prevalence globally, with this study focusing on its genetic basis in India, marking the lack of prior data on this region.
  • Genetic testing with whole exome sequencing (WES) was evaluated as a preferred first-tier diagnostic tool compared to chromosomal microarray (CMA) in a cohort of Indian patient-parent trios diagnosed with ASD.
  • The results indicated that WES identified a higher rate of genetic diagnoses (29.7%) compared to CMA (2.9%), revealing a significant occurrence of de novo variants, particularly in genes associated with key neurological functions, with the MECP2 gene being notably affected.
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  • Multiple sulfatase deficiency (MSD) is a rare genetic disorder caused by mutations in the SUMF1 gene, affecting enzyme activation for sulfatases and resulting in various clinical symptoms across multiple organs.!* -
  • The study presents two cases of late infantile MSD in Indian children, detailing significant symptoms such as ichthyosis and neurological issues, and reports the discovery of a novel missense variant in the SUMF1 gene.!* -
  • This research contributes to the understanding of MSD in India, suggesting that the newly identified genetic variant may be linked to milder symptoms and longer life expectancy for affected individuals.!*
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Introduction: NEUROG1 gene is yet to be associated with a set of human phenotypes in the OMIM database. Three cases have previously been diagnosed with cranial dysinnervation due to biallelic variants in the NEUROG1 gene. This is the fourth and a novel report of a sibling pair harboring a homozygous variant in the NEUROG1 gene with autism as an additional phenotype.

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  • Rett syndrome (RTT) is a neurodevelopmental disorder primarily affecting females, marked by normal early development followed by loss of skills and severe disabilities due to mutations in the MECP2 gene.
  • Recent discoveries show that some males can have RTT, often due to genetic variations like Klinefelter syndrome or somatic mosaicism, with a very limited number of documented cases.
  • This case study presents a unique male RTT patient from India who survived beyond age 2 due to a specific genetic mutation, contributing to understanding of RTT's genetic factors and their impact on disease severity in both genders.
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Biallelic mutations in the gene are known to cause a rare genetic disorder-progressive pseudorheumatoid dysplasia (PPD). PPD is characterized by distinct joint deformities of interphalangeal joints, stiffness, gait disturbance, abnormal posture, and absence of inflammation, resulting in significant morbidity. The largest case series of PPD from India suggests c.

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Background: Bi-allelic mutations in FAM20C gene are known to cause a rare genetic disorder- Raine syndrome (RS). The FAM20C protein binds calcium and phosphorylates proteins involved in biomineralization of bones and teeth. RS is recognized as an osteosclerotic bone dysplasia.

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Bi-allelic HOXA1 pathogenic variants clinically manifest as two distinct syndromes, Bosley-Salih-Alorainy syndrome (BSAS) and Athabascan brainstem dysgenesis syndrome, mainly reported in two different populations from Saudi Arabia and southwest North America, respectively. Here we report two siblings of Indian origin with BSAS phenotype caused by a novel homozygous exon 2 HOXA1 pathogenic variants.

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Inherited ataxias are an extremely heterogeneous group of disorders. Autosomal recessive spinocerebellar ataxia 20 (SCAR20) is a recently described disorder characterized by intellectual disability, ataxia, coarse facial features, progressive loss of Purkinje cells in the cerebellum and often hearing loss and skeletal abnormalities. Mutations in the gene SNX14, which plays an important role in autophagy, have been found to cause SCAR20.

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