Genomic analysis of patients in a South Indian Community with autosomal dominant cortical tremor, myoclonus and epilepsy suggests a founder repeat expansion mutation in the

SAMD12 TTTCA repeat expansion autosomal dominant cortical tremor myoclonus and epilepsy (ADCME) repeat-primed PCR

Journal

Brain communications
ISSN: 2632-1297
Titre abrégé: Brain Commun
Pays: England
ID NLM: 101755125

Informations de publication

Date de publication:
2021
Historique:
received: 14 07 2020
revised: 15 10 2020
accepted: 25 10 2020
entrez: 27 1 2021
pubmed: 28 1 2021
medline: 28 1 2021
Statut: epublish

Résumé

Autosomal Dominant Cortical Tremor, Myoclonus and Epilepsy is a non-progressive disorder characterized by distal tremors. Autosomal Dominant Cortical Tremor, Myoclonus and Epilepsy has been reported globally with different genetic predispositions of autosomal dominant inheritance with a high degree of penetrance. In south India, Autosomal Dominant Cortical Tremor, Myoclonus and Epilepsy has been reported in a large cohort of 48 families, in which the genetic defect was not identified. This report pertains to the whole-genome analysis of four individuals followed by repeat-primed PCR for 102 patients from a familial cohort of 325 individuals. All the patients underwent extensive clinical evaluation including neuropsychological examinations. The whole-genome sequencing was done for two affected and two unaffected individuals, belonging to two different families. The whole-genome sequencing analysis revealed the repeat expansion of TTTTA and TTTCA in intron 4 of the

Identifiants

pubmed: 33501421
doi: 10.1093/braincomms/fcaa214
pii: fcaa214
pmc: PMC7811760
doi:

Types de publication

Journal Article

Langues

eng

Pagination

fcaa214

Informations de copyright

© The Author(s) (2020). Published by Oxford University Press on behalf of the Guarantors of Brain.

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Auteurs

Radha Mahadevan (R)

Department of Neurology, Tirunelveli Medical College, Tirunelveli 627011, Tamil Nadu, India.

Rahul C Bhoyar (RC)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Natarajan Viswanathan (N)

Institute of Neurology, Madras Medical College, Chennai 600003, Tamil Nadu, India.

Raskin Erusan Rajagopal (RE)

Multidisciplinary Research Unit, Tirunelveli Medical College, Tirunelveli 627011, Tamil Nadu, India.

Bobby Essaki (B)

Department of Neurology, Tirunelveli Medical College, Tirunelveli 627011, Tamil Nadu, India.

Varun Suroliya (V)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Rachel Chelladurai (R)

Department of Neurology, Tirunelveli Medical College, Tirunelveli 627011, Tamil Nadu, India.

Saravanan Sankaralingam (S)

Department of Neurology, Tirunelveli Medical College, Tirunelveli 627011, Tamil Nadu, India.

Ganesan Shanmugam (G)

Galaxy Hospital, Tirunelveli 627003, Tamil Nadu, India.

Sriramakrishnan Vayanakkan (S)

Department of Neurology, Tirunelveli Medical College, Tirunelveli 627011, Tamil Nadu, India.

Uzma Shamim (U)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Aradhana Mathur (A)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Abhinav Jain (A)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Mohamed Imran (M)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Mohammed Faruq (M)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Vinod Scaria (V)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Sridhar Sivasubbu (S)

Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi 110025, India.

Shantaraman Kalyanaraman (S)

Multidisciplinary Research Unit, Tirunelveli Medical College, Tirunelveli 627011, Tamil Nadu, India.

Classifications MeSH