PMID- 29539587 OWN - NLM STAT- MEDLINE DCOM- 20190813 LR - 20221207 IS - 1872-6968 (Electronic) IS - 0303-8467 (Linking) VI - 168 DP - 2018 May TI - Patients with neutral lipid storage disease with myopathy (NLSDM) in Southwestern China. PG - 102-107 LID - S0303-8467(18)30096-9 [pii] LID - 10.1016/j.clineuro.2018.03.001 [doi] AB - OBJECTIVES: Neutral lipid storage disease with myopathy (NLSDM) is a rare metabolic myopathy occurring owing to mutations in the patatin like phospholipase domain containing 2 (PNPLA2) gene. Till date, less than 50 patients with PNPLA2 mutations have been reported. In this study, we describe the clinical, pathological, and genetic findings, and muscle magnetic resonance imaging (MRI) changes in four Chinese patients with NLSDM. PATIENTS AND METHODS: Peripheral blood smears were stained using Wright's stain. Muscle biopsies, muscle MRI, and sequence analysis of PNPLA2 gene were performed. RESULTS: All patients exhibited slowly progressive myopathy during adulthood. Cardiomyopathy, sensorineural hearing loss, hepatic adipose infiltration, and hypertriglyceridemia were observed in some patients. Jordan's anomaly was detected in the blood smears of all patients. Muscle biopsies revealed the presence of massive lipid droplets and rimmed vacuoles in two patients. MR images of the lower lumbar, pelvis, and lower extremities showed the involvement of posterior compartment muscles. The anterior compartment muscles were found to be less affected. Gene analysis for PNPLA2 revealed an identical homozygous mutation c.757 + 1G > T in all patients. CONCLUSION: Patients with NLSDM display clinical heterogeneities despite sharing the same mutation (c.757 + 1G > T) of the PNPLA2 gene, may suggest a founder effect in the region. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Tan, Jiaze AU - Tan J AD - Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing 400016, China. FAU - Yang, Haitao AU - Yang H AD - Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China. FAU - Fan, Jingchuan AU - Fan J AD - Department of Medical Laboratory Technology, Institute of Life Sciences of Chongqing Medical University, Chongqing 400016, China. FAU - Fan, Yulan AU - Fan Y AD - Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing 400016, China. FAU - Xiao, Fei AU - Xiao F AD - Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing 400016, China. Electronic address: xiaofei@hospital.cqmu.edu.cn. LA - eng PT - Journal Article DEP - 20180305 PL - Netherlands TA - Clin Neurol Neurosurg JT - Clinical neurology and neurosurgery JID - 7502039 RN - EC 3.1.1.3 (Lipase) RN - EC 3.1.1.3 (PNPLA2 protein, human) RN - Chanarin-Dorfman Syndrome RN - Neutral Lipid Storage Disease with Myopathy MH - Adult MH - Asian People MH - Biopsy MH - China MH - Female MH - Humans MH - Ichthyosiform Erythroderma, Congenital/genetics MH - Lipase/*genetics MH - Lipid Metabolism, Inborn Errors/*genetics MH - Male MH - Middle Aged MH - Muscle, Skeletal/pathology MH - Muscular Diseases/*genetics/pathology MH - Mutation/*genetics OTO - NOTNLM OT - Adipose triglyceride lipase (ATGL) OT - Jordan's anomaly OT - Muscle pathology OT - Neutral lipid storage disease with myopathy (NLSDM) OT - Patatin-like phospholipase domain containing 2 (PNPLA2) OT - Rimmed vacuoles EDAT- 2018/03/15 06:00 MHDA- 2019/08/14 06:00 CRDT- 2018/03/15 06:00 PHST- 2017/11/30 00:00 [received] PHST- 2018/01/27 00:00 [revised] PHST- 2018/03/01 00:00 [accepted] PHST- 2018/03/15 06:00 [pubmed] PHST- 2019/08/14 06:00 [medline] PHST- 2018/03/15 06:00 [entrez] AID - S0303-8467(18)30096-9 [pii] AID - 10.1016/j.clineuro.2018.03.001 [doi] PST - ppublish SO - Clin Neurol Neurosurg. 2018 May;168:102-107. doi: 10.1016/j.clineuro.2018.03.001. Epub 2018 Mar 5.