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KMC Manipal doctors discover new genetic disorder

KMC Manipal doctors discover new genetic disorder


Mangalore Today News Network

Mangaluru, April 11,2017: Reports state that the department of Medical Genetics at Kasturba Medical College, Manipal, led by Dr Girish Katta, has discovered a new genetic disease called ’Multiple Mitochondrial Dysfunction Syndrome’ in four children from two unrelated families in the region.


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The children with neurodevelopmental disorder were found to be affected with early onset of neurological deterioration, seizures, extensive white matter abnormalities, cortical migrational abnormalities, lactic acidosis and early demise.

"The team found defects in ISCA1 gene as the likely cause of their disease in four children from two families," Dr Girish said.

The team comprising clinical geneticist Dr Anju Shukla studied two families with severe neurological disease in infancy. All four affected children died early in childhood. DNA from the first family was analysed by exome sequencing, a new technology to study all the genes in one experiment, Dr Shukla explained.

The bioinformatics analysis then identified a similarly affected family.


 All the four showed a severe white matter disease of brain and defective functioning of mitochondria in cells, she said.

Dr H Vinod Bhat, vice chancellor of Manipal University, lauded the efforts of department in discovering genetic basis of human diseases.

The work is now published online in Journal of Human Genetics, published by Nature Publishing Group.

Dr Bhat said a new bone disease ’Short Rib Thoracic Dysplasia Type 16’ was also identified by the same team and that the work has already been catalogued in Online Mendelian Inheritance in Man (OMIM) following discovery of similar disease from the United States.

Dr Girish said that his team’s contribution to the discovery of genes in the last two years include SFRP4, BGN, EXOC6B and EBF3.

Dean Dr Poornima Baliga gave the details of major work done by the department in the area of genetic bone disorders and brain disorders in the children.

Medical superintendent Dr Col (Retd) M Dayananda said patient care has improved after the research activities of the department and enabled genetic counselling and prenatal diagnosis for affected families.


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