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Simultaneous Assessment of Kinship, Division Number, and Phenotype via Flow Cytometry for Hematopoietic Stem and Progenitor Cells

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Consanguinity as an Adjunct Diagnostic Tool.

Priyanka Srivastava¹, Deepti Saxena¹, Stephen Joshi¹

¹Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226014, Uttar Pradesh, India.

Indian Journal of Pediatrics

|July 4, 2015

Summary

This summary is machine-generated.

Consanguinity history aids in diagnosing monogenic disorders. This study used homozygosity mapping with SNP microarray data to identify the causative gene for Warburg Micro syndrome (WARBM), a cost-effective strategy for rare genetic conditions.

Keywords:

Homozygosity mapping India Loss of heterozygosity Micro syndrome Mutation RAB3GAP1

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Area of Science:

Genetics
Genomics
Medical Genetics

Background:

Consanguinity is a key indicator for autosomal recessive disorders.
Warburg Micro syndrome (WARBM) presents with non-specific symptoms like microcephaly and cataracts, complicating clinical diagnosis.
Multiple genes are implicated in WARBM, necessitating advanced diagnostic approaches.

Observation:

This case report details the application of homozygosity mapping utilizing single nucleotide polymorphism (SNP) microarray data.
The study focused on identifying the causative gene in a patient diagnosed with Warburg Micro syndrome.
Clinical diagnosis of WARBM is challenging due to its non-specific features.

Findings:

Homozygosity mapping via SNP microarray effectively identified the causative gene for WARBM.
This method proved useful in a case with a heterogeneous genetic etiology.
The approach demonstrated cost-effectiveness in diagnosing rare genetic disorders.

Implications:

SNP microarray and homozygosity mapping offer a valuable diagnostic strategy for autosomal recessive disorders with multiple potential genes.
This technique aids in precise etiological diagnosis when clinical features are ambiguous.
The findings highlight a cost-effective approach for identifying causative genes in rare genetic syndromes.