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Al Shibli N, Al Ajmi E, Al Yazidi LS. Difficulty of Changing Diapers in a Toddler. Oman Med J 2023; 38:e539. [PMID: 37605773 PMCID: PMC10440022 DOI: 10.5001/omj.2023.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 01/16/2023] [Indexed: 08/23/2023] Open
Affiliation(s)
- Naema Al Shibli
- Department of Child Health, Sultan Qaboos University Hospital, Muscat, Oman
| | - Eiman Al Ajmi
- Department of Radiology and Molecular Imaging, Sultan Qaboos University Hospital, Muscat, Oman
| | - Laila S. Al Yazidi
- Department of Child Health, Sultan Qaboos University Hospital, Muscat, Oman
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Al-Thihli K, Afting C, Al-Hashmi N, Mohammed M, Sliwinski S, Al Shibli N, Al-Said K, Al-Kasbi G, Al-Kharusi K, Merle U, Füllekrug J, Al-Maawali A. Deficiency of acyl-CoA synthetase 5 is associated with a severe and treatable failure to thrive of neonatal onset. Clin Genet 2020; 99:376-383. [PMID: 33191500 DOI: 10.1111/cge.13883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/28/2020] [Accepted: 11/11/2020] [Indexed: 12/01/2022]
Abstract
Failure to thrive (FTT) causes significant morbidity, often without clear etiologies. Six individuals of a large consanguineous family presented in the neonatal period with recurrent vomiting and diarrhea, leading to severe FTT. Standard diagnostic work up did not ascertain an etiology. Autozygosity mapping and whole exome sequencing identified homozygosity for a novel genetic variant of the long chain fatty acyl-CoA synthetase 5 (ACSL5) shared among the affected individuals (NM_203379.1:c.1358C>A:p.(Thr453Lys)). Autosomal recessive genotype-phenotype segregation was confirmed by Sanger sequencing. Functional in vitro analysis of the ACSL5 variant by immunofluorescence, western blotting and enzyme assay suggested that Thr453Lys is a loss-of-function mutation without any remaining activity. ACSL5 belongs to an essential enzyme family required for lipid metabolism and is known to contribute the major activity in the mouse intestine. Based on the function of ACSL5 in intestinal long chain fatty acid metabolism and the gastroenterological symptoms, affected individuals were treated with total parenteral nutrition or medium-chain triglyceride-based formula restricted in long-chain triglycerides. The patients responded well and follow up suggests that treatment is only required during early life.
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Affiliation(s)
- Khalid Al-Thihli
- Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.,Genetic and Developmental Medicine Clinic, Sultan Qaboos University Hospital, Muscat, Oman
| | - Cassian Afting
- Department of Internal Medicine IV, Heidelberg University Hospital, Heidelberg, Germany
| | - Nadia Al-Hashmi
- Department of Pediatrics and National Genetic Center, Royal Hospital, Ministry of Health, Muscat, Oman
| | - Mohammed Mohammed
- Department of Pediatrics and National Genetic Center, Royal Hospital, Ministry of Health, Muscat, Oman
| | - Svenja Sliwinski
- Department of Internal Medicine IV, Heidelberg University Hospital, Heidelberg, Germany
| | - Naema Al Shibli
- Department of Child Health, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Khoula Al-Said
- Department of Pediatrics and National Genetic Center, Royal Hospital, Ministry of Health, Muscat, Oman
| | - Ghalia Al-Kasbi
- Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Khalsa Al-Kharusi
- Genetic and Developmental Medicine Clinic, Sultan Qaboos University Hospital, Muscat, Oman
| | - Uta Merle
- Department of Internal Medicine IV, Heidelberg University Hospital, Heidelberg, Germany
| | - Joachim Füllekrug
- Department of Internal Medicine IV, Heidelberg University Hospital, Heidelberg, Germany
| | - Almundher Al-Maawali
- Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.,Genetic and Developmental Medicine Clinic, Sultan Qaboos University Hospital, Muscat, Oman
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Al Shibli N, Al-Maawali A, Elmanzalawy A, Al-Nabhani M, Koul R, Gabr A, Al Murshedi F. A Novel Splice-Site Variant in SLC12A6 Causes Andermann Syndrome without Agenesis of the Corpus Callosum. J Pediatr Genet 2020; 9:293-295. [PMID: 32765936 DOI: 10.1055/s-0039-1700975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 12/06/2019] [Indexed: 10/25/2022]
Abstract
Andermann syndrome, otherwise known as agenesis of the corpus callosum with peripheral neuropathy (ACCPN), is an autosomal recessive motor and sensory neuropathy known to be associated with ACC and mild-to-moderate intellectual disability. We present a 7-year-old girl with infantile-onset hypotonia, mild intellectual disability, and severe motor and sensory demyelinating peripheral neuropathy. Brain magnetic resonance imaging showed intact corpus callosum. Whole exome sequencing showed a novel splice-site pathogenic variant in the SLC12A6 gene. We confirm that ACC is not a mandatory feature and suggest that the term ACCPN may be misleading.
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Affiliation(s)
- Naema Al Shibli
- Department of Child Health, Sultan Qaboos University Hospital, Muscat, Oman
| | - Almundher Al-Maawali
- Genetic and Developmental Medicine Clinic, Sultan Qaboos University Hospital, Muscat, Oman.,Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Alaa Elmanzalawy
- Department of Radiology and Molecular Imaging, Sultan Qaboos University Hospital, Muscat, Oman
| | - Maryam Al-Nabhani
- Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Roshan Koul
- Department of Neurology, Institute of Liver and Biliary Sciences, Vasant Kunj, New Delhi, India
| | - Ahlam Gabr
- Department of Child Health, Sultan Qaboos University Hospital, Muscat, Oman.,Genetic and Developmental Medicine Clinic, Sultan Qaboos University Hospital, Muscat, Oman
| | - Fathiya Al Murshedi
- Genetic and Developmental Medicine Clinic, Sultan Qaboos University Hospital, Muscat, Oman.,Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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