PMID- 24628589 OWN - NLM STAT- MEDLINE DCOM- 20140506 LR - 20140723 IS - 1469-8749 (Electronic) IS - 0012-1622 (Linking) VI - 56 IP - 4 DP - 2014 Apr TI - Infantile neuroaxonal dystrophy caused by uniparental disomy. PG - 386-9 LID - 10.1111/dmcn.12327 [doi] AB - Infantile neuroaxonal dystrophy (INAD) is a rare autosomal recessive neurodegenerative disorder caused by mutations in the phospholipase A2 group 6 (Pla2G6) gene. Affected individuals usually present between the ages of 6 months and 2 years with rapid cognitive and motor regression and axial hypotonia. Gait disturbance, limb spasticity, cerebellar signs, and optic atrophy are other common features associated with INAD. Although magnetic resonance imaging (MRI) can sometimes contribute towards the diagnosis, the confirmation of INAD is by Pla2G6 gene analysis. In this case report, we describe the first individual (female) with INAD due to a combination of uniparental heterodisomy and isodisomy; we discuss the possible underlying mechanism and highlight the importance of parental carrier testing in accurately predicting the recurrence risk in these families. We also confirm the recent report of hypertrophy of the clava (also known as the 'gracile tubercle') as a useful MRI sign in INAD. CI - (c) 2013 Mac Keith Press. FAU - Solomons, Joyce AU - Solomons J AD - Department of Clinical Genetics, Leicester Royal Infirmary, University Hospitals Leicester, UK; Department of Cancer Studies & Molecular Medicine, University of Leicester, Leicester, UK; Department of Clinical Genetics, Oxford University Hospitals NHS Trust, Oxford, UK. FAU - Ridgway, Oliver AU - Ridgway O FAU - Hardy, Carol AU - Hardy C FAU - Kurian, Manju A AU - Kurian MA FAU - Jayawant, Sandeep AU - Jayawant S FAU - Hughes, Sarah AU - Hughes S FAU - Pretorius, Pieter AU - Pretorius P FAU - Nemeth, Andrea H AU - Nemeth AH LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131115 PL - England TA - Dev Med Child Neurol JT - Developmental medicine and child neurology JID - 0006761 RN - EC 3.1.1.4 (Group VI Phospholipases A2) RN - EC 3.1.1.4 (PLA2G6 protein, human) SB - IM EIN - Dev Med Child Neurol. 2014 Jul;56(7):698. Kurian, Manju [corrected to Kurian, Manju A] MH - Female MH - Group VI Phospholipases A2/genetics MH - Humans MH - Infant MH - Magnetic Resonance Imaging MH - Neuroaxonal Dystrophies/*genetics MH - Uniparental Disomy/genetics/*physiopathology EDAT- 2014/03/19 06:00 MHDA- 2014/05/07 06:00 CRDT- 2014/03/18 06:00 PHST- 2013/09/14 00:00 [accepted] PHST- 2014/03/18 06:00 [entrez] PHST- 2014/03/19 06:00 [pubmed] PHST- 2014/05/07 06:00 [medline] AID - 10.1111/dmcn.12327 [doi] PST - ppublish SO - Dev Med Child Neurol. 2014 Apr;56(4):386-9. doi: 10.1111/dmcn.12327. Epub 2013 Nov 15.