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Barut D, Kıran Taşcı E, Kunay B, Güven B, Aksoy B, Çağan Appak Y, Karakoyun M, Çetin F, Selimoğlu A, Onay H, Aydoğdu S. Congenital sucrase-isomaltase deficiency in Türkiye; a single center experience. Scand J Gastroenterol 2024:1-5. [PMID: 38459691 DOI: 10.1080/00365521.2024.2324961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/25/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND Congenital sucrase-isomaltase deficiency (CSID) is a rare inherited carbohydrate malabsorption disorder caused by sucrase-isomaltase (SI) gene variants. In CSID, an autosomal recessively inherited disease, symptoms can also be seen in individuals with heterozygous mutations. METHODS The variant spectrum was evaluated retrospectively in individuals who presented with chronic diarrhea between 2014 and 2022 and had undergone genetic testing of the SI gene considering CSID due to diet-related complaints. RESULTS Ten patients with chronic diarrhea were genetically evaluated with SI gene sequencing. In patients diagnosed with CSID and whose symptoms improved with enzyme replacement therapy, the genetic mutation zygosity was found to be heterozygous at a rate of 90%. In 10% of the patients, the mutation was homozygous. Limiting consuming sucrose and isomaltose foods reduced the patients' complaints, but the symptoms did not disappear completely. With the initiation of sacrosidase enzyme replacement therapy, the patient's complaints completely disappeared. CONCLUSION In CSID, defined as an autosomal recessive disease, clinical symptoms can also be seen in heterozygous cases previously described as carriers, and these patients also benefit from sacrosidase enzyme replacement therapy. In light of these findings, the autosomal recessive definition of CSID does not fully characterize the disease.What is Known:CSID is a rare inherited carbohydrate malabsorption disorder caused by sucrase-isomaltase gene variants.In congenital sucrase-isomaltase deficiency, an autosomal recessively inherited disorder, symptoms can also be seen in individuals with heterozygous mutations.What is new:Severe disease symptoms can also be seen in heterozygous cases, which were thought to be carriers because the disease was previously described as autosomal recessive.Sacrosidase enzyme replacement therapy also eliminates the disease symptoms in patients with heterozygous CSID mutations.This is the second study on sucrase-isomaltase enzyme deficiency pediatric groups in Türkiye and Europe.
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Affiliation(s)
- Doğan Barut
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Disease, Medical School of Ege University, Izmir, Turkey
| | - Ezgi Kıran Taşcı
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Disease, Medical School of Ege University, Izmir, Turkey
| | - Bora Kunay
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Disease, Medical School of Ege University, Izmir, Turkey
| | - Burcu Güven
- Department of Pediatric Gastroenterology Hepatology and Nutrition, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Betül Aksoy
- Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Izmir Katip Çelebi University, İzmir, Turkey
| | - Yeliz Çağan Appak
- Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Izmir Katip Çelebi University, İzmir, Turkey
| | - Miray Karakoyun
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Disease, Medical School of Ege University, Izmir, Turkey
| | - Funda Çetin
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Disease, Medical School of Ege University, Izmir, Turkey
| | - Ayşe Selimoğlu
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Disease, Medical School, Memorial Ataşehir/Bahçelievler Hospital, İstanbul, Turkey
| | - Huseyin Onay
- Department of Medical Genetics, Ege University Hospital, Izmir, Turkey
| | - Sema Aydoğdu
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Disease, Medical School of Ege University, Izmir, Turkey
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O'Brien L, Wall CL, Wilkinson TJ, Gearry RB. What Are the Pearls and Pitfalls of the Dietary Management for Chronic Diarrhoea? Nutrients 2021; 13:1393. [PMID: 33919083 DOI: 10.3390/nu13051393] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/16/2022] Open
Abstract
Chronic diarrhoea affects up to 14% of adults, it impacts on quality of life and its cause can be variable. Patients with chronic diarrhoea are presented with a plethora of dietary recommendations, often sought from the internet or provided by those who are untrained or inexperienced. In this review, we summarise the possible causes of chronic diarrhoea that can be managed by diet, the symptom improvement and quality of life benefits but also the potential risks of such dietary treatments. Clinicians need to consider both the benefits and risks of dietary treatments before making dietary recommendations to manage chronic diarrhoea. The pivotal role that dietitians have in ensuring optimal symptom improvement without jeopardising nutritional and overall health is discussed.
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Zhou J, Zhao Y, Qian X, Cheng Y, Cai H, Chen M, Zhou S. Two Novel Mutations in the SI Gene Associated With Congenital Sucrase-Isomaltase Deficiency: A Case Report in China. Front Pediatr 2021; 9:731716. [PMID: 34926337 PMCID: PMC8675567 DOI: 10.3389/fped.2021.731716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/11/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Congenital sucrase-isomaltase deficiency (CSID) is an autosomal recessive inherited disease that leads to the maldigestion of disaccharides and is associated with mutation of the sucrase-isomaltase (SI) gene. Cases of CSID are not very prevalent in China or worldwide but are gradually being identified and reported. Case Presentation: We report a case involving a 14-month-old male who presented with failure to thrive that had begun after food diversification and was admitted for chronic diarrhea. We used a whole-exome sequencing (WES) approach to identify mutations in this patient's genome. WES revealed two novel heterozygous mutations in the SI gene, c.2626C > T (p.Q876*) and c.2872C > T (p.R958C), which were confirmed by Sanger DNA sequencing. With a strict sucrose- and starch-restricted diet, the patient's diarrhea was resolved, and he began to gain weight. Conclusions: We report a case of novel variants in the SI gene that caused CSID. This report provides valuable information for the clinical field, especially in China.
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Affiliation(s)
- Jianli Zhou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, China
| | - Yuzhen Zhao
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, China
| | - Xia Qian
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, China
| | - Yongwei Cheng
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, China
| | - Huabo Cai
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, China
| | - Moxian Chen
- Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Shaoming Zhou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, China
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Berni Canani R, Pezzella V, Amoroso A, Cozzolino T, Di Scala C, Passariello A. Diagnosing and Treating Intolerance to Carbohydrates in Children. Nutrients 2016; 8:157. [PMID: 26978392 DOI: 10.3390/nu8030157] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/22/2016] [Accepted: 02/25/2016] [Indexed: 12/19/2022] Open
Abstract
Intolerance to carbohydrates is relatively common in childhood, but still poorly recognized and managed. Over recent years it has come to the forefront because of progresses in our knowledge on the mechanisms and treatment of these conditions. Children with intolerance to carbohydrates often present with unexplained signs and symptoms. Here, we examine the most up-to-date research on these intolerances, discuss controversies relating to the diagnostic approach, including the role of molecular analysis, and provide new insights into modern management in the pediatric age, including the most recent evidence for correct dietary treatment.
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