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Hamad L, Kreidieh K, Hamdan MB, Nakouzi G, Yazbek S. Mapping the Diverse Genetic Disorders and Rare Diseases Among the Syrian Population: Implications on Refugee Health and Health Services in Host Countries. J Immigr Minor Health 2021; 22:1347-1367. [PMID: 32172498 DOI: 10.1007/s10903-020-00987-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The aim of this systematic review is to provide physicians and researchers with a comprehensive list of reported genetic disorders in patients of Syrian origin-those who have become part of the largest displaced population globally-and to highlight the need to consider migrant population-based risk for the development of genetic disease control and prevention programs. This review was performed based on the 2015 PRISMA and the international prospective register of systematic reviews. The present review reports on a total of 166 genetic disorders (only 128 reported on OMIM) identified in the Syrian population. Of these disorders, 27% are endocrine-, nutritional- and metabolic-related diseases. Second to metabolic disorders are congenital malformations, deformations and chromosomal abnormalities. Diseases of the blood and the blood-forming organs accounted for 13% of the total genetic disorders. The majority of the genetic disorders reported in Syrian patients followed an autosomal recessive mode of inheritance. These findings are a reflection of the high rates of consanguineous marriages that favor the increase in incidence of these diseases. From the diseases that followed an autosomal recessive mode of inheritance, 22% are reported to be only present in Syria and other regional countries. Twelve of these genetic diseases were identified to be strictly diagnosed in individuals of Syrian origin. The present systematic review highlights the need to develop programs that target genetic disorders affecting Syrian migrants in host countries. These programs would have potential financial and economic benefits, as well as a positive impact on the physical and mental health of members of the Syrian refugee community and those of their host societies. In turn, this would decrease the burden on the health systems in host countries.
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Affiliation(s)
- Lina Hamad
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Khalil Kreidieh
- Office of Faculty Affairs, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Mirna Bou Hamdan
- Medical Laboratory Sciences Program, Faculty of Health Sciences, American University of Beirut, Riad El Solh, P.O Box 11-0236, Beirut, 1107 2020, Lebanon
| | - Ghunwa Nakouzi
- Department of Clinical Pathology, Cleveland Clinic Hospital, Cleveland, OH, USA.
| | - Soha Yazbek
- Medical Laboratory Sciences Program, Faculty of Health Sciences, American University of Beirut, Riad El Solh, P.O Box 11-0236, Beirut, 1107 2020, Lebanon.
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Danis DO, Bodamer O, Levi JR. The otolaryngologic manifestations of Sotos syndrome 1: A systematic review. Int J Pediatr Otorhinolaryngol 2021; 143:110649. [PMID: 33640723 DOI: 10.1016/j.ijporl.2021.110649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/05/2021] [Accepted: 02/07/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Sotos syndrome 1 (SOTOS1; MIM:117550) is rare genetic disorder characterized by excessive physical growth before and after birth, distinctive facial features, a large and elongated head, and intellectual disability (Sotos et al., 1964; Tatton-Brown et al., 1993). This systematic review aims to determine otolaryngologic conditions and complications of SOTOS1 based on existing literature through a review of current and past case reports and studies regarding SOTOS1. METHODS A systematic review of all published literature (1964-2020) describing otolaryngologic conditions and/or complications of patients with SOTOS1. Twenty journal articles met inclusion criteria. These articles included 160 patients diagnosed with SOTOS1. RESULTS Of the 160 individuals with SOTOS1 included in this review, 22 (14%) were reported to have otologic conditions. 4 (3%) individuals were reported to have conditions involving the thyroid and parathyroid glands. 2 (1%) individuals were reported to have head & neck tumors. 39 (24%) individuals were reported to have congenital malformations or abnormalities of the head & neck. 47 (29%) individuals were reported to have feeding difficulties. 16% of individuals were reported to have other otolaryngologic conditions. CONCLUSIONS Our review found multiple otolaryngologic conditions present in patients with SOTOS1, including hearing loss, otitis, hyperthyroidism, hypothyroidism, head & neck tumors, congenital malformations (high arched palate, cleft lip and palate, macroglossia), feeding difficulties, respiratory difficulties, and speech disorders. Additional studies should be conducted to further assess these associations.
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Affiliation(s)
- David O'Neil Danis
- Boston University School of Medicine, 72 East Concord St, Boston, MA, 02118, USA
| | - Olaf Bodamer
- Division of Genetics and Genomics, Department of Pediatrics, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Jessica R Levi
- Boston University School of Medicine, 72 East Concord St, Boston, MA, 02118, USA; Department of Otolaryngology-Head and Neck Surgery, Boston Medical Center, 830 Harrison Ave, Boston, MA, 02118, USA.
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Kamal NM, Althobiti JM, Alsaedi A, Bakkar A, Alkaabi T. Sotos syndrome: A case report of 1st genetically proven case from Saudi Arabia with a novel mutation in NSD1 gene. Medicine (Baltimore) 2018; 97:e12867. [PMID: 30461603 PMCID: PMC6392717 DOI: 10.1097/md.0000000000012867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
RATIONALE Sotos syndrome is a rare genetic disorder characterized by rapid growth during infancy and childhood; ≥2 SD for height and head circumference; distinctive facial appearance and developmental delay.Ten clinically diagnosed cases have been reported from Saudi Arabia; none of them was genetically confirmed. PATIENT CONCERNS A male Saudi patient, who had a birth length and head circumference above 97th centile, presented with abnormal rapid growth, delayed motor and mental milestones, aggressive behavior, obsession to close doors, nail biting, defective attention, and hyperactivity. DIAGNOSES Sotos syndrome was suspected INTERVENTIONS:: Molecular genetic analysis for NSD1 gene was carried for the patient. OUTCOMES A novel heterozygous deletion of all exons 1 to 23 of the NSD1 gene was detected. Genetic counseling was carried for the family with extended genetic testing for the parents and his siblings with normal results. LESSONS Despite its worldwide distribution, Sotos syndrome may be under-reported. Besides its characteristic clinical picture, molecular genetic testing is also extremely recommended.
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Affiliation(s)
| | | | | | | | - Tahani Alkaabi
- Department of Pediatrics, Taif Children Hospital, Taif, Saudi Arabia
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Han JY, Lee IG, Jang W, Shin S, Park J, Kim M. Identification of a novel de novo nonsense mutation of the NSD1 gene in monozygotic twins discordant for Sotos syndrome. Clin Chim Acta 2017; 470:31-35. [PMID: 28457852 DOI: 10.1016/j.cca.2017.04.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 04/27/2017] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Sotos syndrome is a congenital overgrowth disorder characterized by facial gestalt, excessively rapid growth, acromegalic features and a non-progressive cerebral disorder with intellectual disability. METHODOLOGY The identical male twins showed somewhat different clinical, cognitive and behavioural phenotypes. Abnormal clinical manifestations including seizures, scoliosis, enlarged ventricles, and attention-deficit/hyperactivity disorder (ADHD) were found in the proband (first twin), but not in the sibling (second twin). We used diagnostic exome sequencing (DES) to identify a heterozygous de novo mutation of the NSD1 gene in monozygotic twins with Sotos syndrome. RESULTS DES revealed a novel nonsense mutation c.2596G>T (p.Glu866*) of the NSD1 gene in the proband, the first of monozygotic twins. Sanger sequencing analysis of the proband and his family members showed that this nonsense mutation was present in the proband and his sibling, but was absent in their parents, indicating that it occurred with de novo origin. CONCLUSION This finding expands the phenotypic spectrum associated with variable expression of the Sotos syndrome caused by NSD1 mutation, and it adds further support for postconceptual mutation, epigenetic change and/or an environmental factor involved in the cause of the Sotos syndrome.
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Affiliation(s)
- Ji Yoon Han
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - In Goo Lee
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Woori Jang
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Soyoung Shin
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Joonhong Park
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
| | - Myungshin Kim
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Nalini A, Biswas A. Sotos syndrome: An interesting disorder with gigantism. Ann Indian Acad Neurol 2011; 11:190-2. [PMID: 19893668 PMCID: PMC2771975 DOI: 10.4103/0972-2327.42941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2007] [Revised: 02/06/2008] [Accepted: 04/14/2008] [Indexed: 11/30/2022] Open
Abstract
We report the case of a 16-year-old boy diagnosed to have Sotos syndrome, with rare association of bilateral primary optic atrophy and epilepsy. He presented with accelerated linear growth, facial gestalt, distinctive facial features, seizures and progressive diminution of vision in both eyes. He had features of gigantism from early childhood. An MRI showed that brain and endocrine functions were normal. This case is of interest, as we have to be aware of this not so rare disorder. In addition to the classic features, there were two unusual associations with Sotos syndrome in the patient.
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Thomas MR. Sotos syndrome, failure to thrive and parotitis. BMJ Case Rep 2011; 2011:2011/jan20_1/bcr1020103407. [PMID: 22715272 DOI: 10.1136/bcr.10.2010.3407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Sotos syndrome is characterised by excessive pre and postnatal growth, a variable degree of learning difficulties and a recognisable facial appearance. This report highlights the difficulty in making the diagnosis where failure to thrive is the presenting feature and documents a previously undescribed association with recurrent parotitis.
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Affiliation(s)
- Megan R Thomas
- Department of Child Health, Blackpool Fylde and Wyre Hospitals NHS Foundation Trust, Blackpool, UK.
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Lachman RS. S. TAYBI AND LACHMAN'S RADIOLOGY OF SYNDROMES, METABOLIC DISORDERS AND SKELETAL DYSPLASIAS 2007. [PMCID: PMC7315357 DOI: 10.1016/b978-0-323-01931-6.50027-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gomes-Silva JM, Ruviére DB, Segatto RAS, de Queiroz AM, de Freitas AC. Sotos Syndrome: A case report. SPECIAL CARE IN DENTISTRY 2006; 26:257-62. [PMID: 17472042 DOI: 10.1111/j.1754-4505.2006.tb01664.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sotos Syndrome is a genetic condition characterized by accelerated bone development, abnormal craniofacial morphology and psychomotor developmental retardation. The behavioral problems usually associated with the syndrome include poor social skills, anxiety and/or irritability. Oral findings include prognathism and a high-arched palate with premature eruption of the teeth. Delayed psychomotor development increases the risk for caries. A personalized preventive treatment plan with close supervision of the patient's oral health care is required. This paper documents a child diagnosed with Sotos Syndrome and describes the primary clinical features, the disease-specific craniofacial, oral and dental findings, and dental care management of this patient.
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Affiliation(s)
- Jaciara Miranda Gomes-Silva
- Department of Pediatric Clinics, Preventive and Social Dentistry School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Successful management of vena caval compression due to a giant hydronephrosis by retroperitoneoscopic nephrectomy. MINIM INVASIV THER 2006; 12:95-7. [PMID: 16754085 DOI: 10.1080/13645700310004330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A patient with Sotos syndrome presented with a history of massive bleeding from varicose veins of the right leg, requiring hospitalization. Investigations revealed that his bilateral varicose veins and the associated leg edema were secondary to the inferior vena cava getting compressed by an asymptomatic grossly hydronephrotic right kidney. The patient was completely cured of his varicosity and leg edema following retroperitoneal laparoscopic nephrectomy. A giant hydronephrosis has produced venous thrombosis in the past, but this is the first time it was found to be responsible for bilateral varicosity of the long and the short saphenous veins due to long-standing vena caval compression.
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Al-Mulla N, Belgaumi AF, Teebi A. Cancer in Sotos syndrome: report of a patient with acute myelocytic leukemia and review of the literature. J Pediatr Hematol Oncol 2004; 26:204-8. [PMID: 15125616 DOI: 10.1097/00043426-200403000-00013] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Sotos syndrome is a rare congenital disorder that is associated with various malignancies, including acute lymphoblastic leukemia and lymphomas. The NSD1 gene haploinsufficiency is associated with this syndrome. The authors report a case of acute myeloid leukemia developing in a child with Sotos syndrome. He was treated with standard chemotherapy and achieved sustained remission. On review of the literature, it was found that most malignancies in Sotos syndrome occur in childhood. In conclusion, because of their increased risk of developing malignancy, patients with Sotos syndrome should be followed closely for signs and symptoms of both hematologic and nonhematologic malignancies, at least during childhood.
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Affiliation(s)
- Naima Al-Mulla
- Department of Pediatric Hematology/ Oncology, King Faisal Specialist Hospital & Research Centre, P.O. Box 3354, MBC 53, Riyadh 11211, Saudi Arabia
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Abstract
PURPOSE OF REVIEW Sotos syndrome (SoS) (OMIM #117550) is a childhood overgrowth syndrome characterized by excessive growth, distinctive craniofacial features, developmental delay, and advanced bone age. Recently, haploinsufficiency of the NSD1 gene has been identified as the major cause of SoS, with intragenic mutations or submicroscopic microdeletions being found in about 60 to 75% of clinically diagnosed patients with SoS. RECENT FINDINGS Recent reports provided much information about the genetic background of SoS, the NSD gene family, and genotype-phenotype correlation. They also added new perspectives in the discussion about a possible association between SoS and neoplasia. SUMMARY This review focuses on recent genetic developments in SoS. Clinical features and associated anomalies are reviewed in relation to possible functional roles of NSD1. Genotype-phenotype correlation between patients with SoS harboring either intragenic mutations or microdeletions is discussed as well as their implication for possible revision of the diagnostic criteria of SoS. Furthermore, future prospects in genetic research of SoS are presented.
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Affiliation(s)
- Remco Visser
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Abstract
Sotos syndrome is a rare condition characterized by typical facies, early accelerated growth, large body size, developmental delay and congenital heart defects. Reports of anaesthetic management of these children are very rare. We report a case of general anaesthesia in a 2(1/2)-year-old boy with this condition, undergoing inguinal hernia repair. The child had a marked developmental delay, hypotonia and mitral regurgitation. The key points in the management of anaesthesia in Sotos syndrome are discussed.
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MESH Headings
- Adjuvants, Anesthesia/therapeutic use
- Anesthesia, General
- Anesthetics, Inhalation/therapeutic use
- Anesthetics, Intravenous/therapeutic use
- Atropine/therapeutic use
- Child, Preschool
- Gigantism/complications
- Heart Defects, Congenital/complications
- Hernia, Inguinal/complications
- Hernia, Inguinal/surgery
- Humans
- Intubation, Intratracheal
- Male
- Methyl Ethers/therapeutic use
- Monitoring, Intraoperative
- Propofol/therapeutic use
- Recurrence
- Reoperation
- Sevoflurane
- Syndrome
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Affiliation(s)
- Eftim J Adhami
- Department of Anesthesiology, University of Florida at Gainesville, Gainesville, FL LeBonheur Children's Medical Center, Memphis, TN, USA
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Abstract
Soto's syndrome, also known, as cerebral gigantism is a rare syndrome characterized by large size, large head and early psychomotor delay. Major diagnostic criteria include facial dysmorphisms, advanced bone age and developmental delay. Herein, a case of Soto's syndrome with rare finding of bilateral hydronephrosis and hydroureters is being reported.
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Affiliation(s)
- Utpal S Bhalala
- Department of Pediatrics, Sir Hurkisondas Nurrotamdas Hospital and Research Centre, Mumbai, India.
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Chen CP, Lin SP, Chang TY, Chiu NC, Shih SL, Lin CJ, Wang W, Hsu HC. Perinatal imaging findings of inherited Sotos syndrome. Prenat Diagn 2002; 22:887-92. [PMID: 12378571 DOI: 10.1002/pd.433] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVES Although most cases of Sotos syndrome are sporadic, familial cases have been described. In familial cases, the most likely mode of inheritance is autosomal dominant with variable expressivity. We present the perinatal imaging findings of an inherited case. CASE This was the second pregnancy of a 32-year-old woman with Sotos syndrome. She had given birth to her first child with macrocephaly, ventriculomegaly, macrocisterna magna and neonatal death at 28 weeks' gestation. During this pregnancy, prenatal ultrasonography at 18 weeks' gestation showed only mild dilatation of lateral ventricles. The pregnancy was uneventful until 31 weeks' gestation when fetal macrocephaly, right hydronephrosis, and polyhydramnios began to develop. At 33 weeks' gestation, dilatation of the third ventricle and fetal overgrowth were obvious. At 34 weeks' gestation, macrodolichocephaly, hypoplasia of the corpus callosum, enlargement of the lateral ventricles with prominent occipital horns, and macrocisterna magna were noted. At 36 weeks' gestation, a male baby was delivered with macrodolichocephaly, frontal bossing and a facial gestalt of Sotos syndrome. Birth weight was 3822 g, length 55 cm, and occipitofrontal head circumference 41 cm (all > 97th centile). The magnetic resonance imaging (MRI) scans demonstrated enlargement of the lateral ventricles, the trigones, and the occipital horns, hypoplasia of the corpus callosum, a persistent cavum septum pellucidum and cavum vergae, and macrocisterna magna. CONCLUSIONS Fetuses at risk for Sotos syndrome may present abnormal sonographic findings of the brain and the skull in association with overgrowth, unilateral hydronephrosis and polyhydramnios in the third trimester. Perinatal MRI studies aid in confirmation of the diagnosis.
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Affiliation(s)
- Chih-Ping Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan, Republic of China.
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