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Fetal ciliopathies: a retrospective observational single-center study. Arch Gynecol Obstet 2021; 306:71-83. [PMID: 34596737 PMCID: PMC9300526 DOI: 10.1007/s00404-021-06265-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/15/2021] [Indexed: 12/04/2022]
Abstract
Purpose Report on the diagnosis of prenatally suspected multisystem ciliopathies in a single center between 2002 and 2020. Methods Retrospective observational single-center study including pregnancies with prenatal ultrasound features of multisystem ciliopathies, such as hyperechogenic kidneys together with polydactyly and/or other skeletal and extraskeletal findings. Cases were compared according to their prenatal findings and outcomes. Results 36 cases of multisystem ciliopathies were diagnosed. Meckel-Gruber syndrome (MKS) was the most common ciliopathy (n = 19/36, 52.8%), followed by disorders that belong to the group of short-rib thoracic dysplasia (SRTD, n = 10/36, 27.8%) McKusick–Kaufmann syndrome (MKKS, n = 4/36, 11.1%), Bardet–Biedl syndrome (BBS, n = 2/36, 5.5%) and Joubert syndrome (n = 1/36, 2.8%). All cases showed abnormalities of the kidneys, most often hyperechogenic parenchyma (n = 26/36, 72.2%), cystic dysplasia (n = 24/36, 66.7%), and/or bilateral kidney enlargement (n = 22/36, 61.1%). Oligohydramnios was mainly present in fetuses with MKS. Polydactyly (n = 18/36), abnormalities of the CNS (n = 25/36), and heart defects (n = 10/36) were associated in 50%, 69.4%, and 27.8%, respectively. Conclusion Prenatal detection of renal abnormalities associated with skeletal or brain abnormalities should raise the suspicion for multisystem ciliopathies. Prenatal ultrasound can help to differentiate between different diseases and pave the way for subsequent targeted genetic testing.
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Singh J, Dalal P, Rattan K. Development delay in a child with microcephaly and birth asphyxia: Explore diagnosis beyond hypotonic cerebral palsy. J Pediatr Neurosci 2021; 16:285-288. [DOI: 10.4103/jpn.jpn_126_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/04/2020] [Indexed: 11/06/2022] Open
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Shen Y, Wang H, Liu Z, Luo M, Ma S, Lu C, Cao Z, Yu Y, Cai R, Chen C, Li Q, Gao H, Peng Y, Xu B, Ma X. Identification of two novel pathogenic variants of PIBF1 by whole exome sequencing in a 2-year-old boy with Joubert syndrome. BMC MEDICAL GENETICS 2020; 21:192. [PMID: 33004012 PMCID: PMC7531107 DOI: 10.1186/s12881-020-01130-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 09/22/2020] [Indexed: 01/20/2023]
Abstract
Background Joubert syndrome (OMIM 213300) is an autosomal recessive disorder with gene heterogeneity. Causal genes and their variants have been identified by sequencing or other technologies for Joubert syndrome subtypes. Case presentation A two-year-old boy was diagnosed with Joubert syndrome by global development delay and molar tooth sign of mid-brain. Whole exome sequencing was performed to detect the causative gene variants in this individual, and the candidate pathogenic variants were verified by Sanger sequencing. We identified two pathogenic variants (NM_006346.2: c.1147delC and c.1054A > G) of PIBF1 in this Joubert syndrome individual, which is consistent with the mode of autosomal recessive inheritance. Conclusion In this study, we identified two novel pathogenic variants in PIBF1 in a Joubert syndrome individual using whole exome sequencing, thereby expanding the PIBF1 pathogenic variant spectrum of Joubert syndrome.
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Affiliation(s)
- Yue Shen
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Hao Wang
- China National Clinical Research Center of Respiratory Diseases, Respiratory Department of Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Zhimin Liu
- Department of Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Minna Luo
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Siyu Ma
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Chao Lu
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Zongfu Cao
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Yufei Yu
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Ruikun Cai
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Cuixia Chen
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Qian Li
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Huafang Gao
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Center, Beijing, China
| | - Yun Peng
- Department of Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Baoping Xu
- China National Clinical Research Center of Respiratory Diseases, Respiratory Department of Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
| | - Xu Ma
- National Research Institute for Family Planning, Beijing, China. .,National Human Genetic Resources Center, Beijing, China.
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Abri Aghdam K, Zand A, Sanjari MS. A Child with Joubert Syndrome: Clinical and Imaging Features. J Ophthalmic Vis Res 2019; 14:229-231. [PMID: 31114663 PMCID: PMC6504718 DOI: 10.4103/jovr.jovr_183_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Kaveh Abri Aghdam
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Amin Zand
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Mostafa Soltan Sanjari
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
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Review of Ocular Manifestations of Joubert Syndrome. Genes (Basel) 2018; 9:genes9120605. [PMID: 30518138 PMCID: PMC6315342 DOI: 10.3390/genes9120605] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 11/13/2018] [Accepted: 11/27/2018] [Indexed: 12/13/2022] Open
Abstract
Joubert syndrome is a group of rare disorders that stem from defects in a sensory organelle, the primary cilia. Affected patients often present with disorders involving multiple organ systems, including the brain, eyes, and kidneys. Common symptoms include breathing abnormalities, mental developmental delays, loss of voluntary muscle coordination, and abnormal eye movements, with a diagnostic “molar tooth” sign observed by magnetic resonance imaging (MRI) of the midbrain. We reviewed the ocular phenotypes that can be found in patients with Joubert syndrome. Ocular motor apraxia is the most frequent (80% of patients), followed by strabismus (74%) and nystagmus (72%). A minority of patients also present with ptosis (43%), chorioretinal coloboma (30%), and optic nerve atrophy (22%). Although mutations in 34 genes have been found to be associated with Joubert syndrome, retinal degeneration has been reported in only 38% of patients. Mutations in AHI1 and CEP290, genes critical to primary cilia function, have been linked to retinal degeneration. In conclusion, Joubert syndrome is a rare pleiotropic group of disorders with variable ocular presentations.
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Lamônica DAC, Ribeiro CDC, Richieri-Costa A, Giacheti CM. Language, behavior and neurodevelopment in Joubert syndrome: a case report. Codas 2016; 28:823-827. [PMID: 28001274 DOI: 10.1590/2317-1782/20162015184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 08/23/2015] [Indexed: 12/27/2022] Open
Abstract
The Joubert syndrome (JS) is a rare, heterogeneous genetic condition among the ciliopathies. More than 20 genes have been identified associated with this phenotype. The main manifestations include hypotonia, ataxia, psychomotor retardation, ocular-motor apraxia and neonatal respiratory abnormalities. The objective of this paper was to present language and neurodevelopmental findings of an individual diagnosed with JS. The following procedures were performed: anamnesis, clinical genetic evaluation observation of communicative behavior, evaluation of language, the Denver Developmental Screening Test II (DDST-II) and the Early Language Milestone Scale (ELMS). The main findings of the MRI brain showed severe hypoplasia of the cerebellar vermis, "molar tooth sign", hypoplastic brain stem and atrophy of the cerebellar hemispheres. The observation and evaluation of the language showed no oral, impaired reception of language, confirming the diagnosis of language disorder with severe degree of impairment. The DDST-II and the ELMS confirmed the observation and clinical assessment and indicated serious delay in motor domains, self-care and receptive and expressive language. Given the presence of hypotonia, ataxia, delayed psychomotor and neonatal respiratory abnormalities it is essential to carry out examination imaging and genetic evaluation for the diagnosis of this condition, so complex, with unique therapeutic needs. This set of findings, along with the familial history and unique phenotypic characteristics reinforce the clinical genetic diagnosis JS. This genetic syndrome is rarely recognized and deserves to be presented to the recognition of the scientific community, targeting the correct diagnosis and treatment planning that minimizes the deleterious effects of this condition.
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Aurégan C, Donciu V, Millischer AE, Khen-Dunlop N, Deloison B, Sonigo P, Magny JF. [Prenatal discovery of Joubert syndrome associated with small bowel volvulus]. Arch Pediatr 2016; 23:301-6. [PMID: 26850151 DOI: 10.1016/j.arcped.2015.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/15/2015] [Accepted: 12/22/2015] [Indexed: 10/22/2022]
Abstract
Joubert syndrome and prenatal volvulus are difficult to diagnose during pregnancy. Joubert syndrome and related diseases should be considered in case of prenatal abnormal features of the fourth ventricle. Small bowel volvulus is also a surgical emergency because of the risk of intestinal necrosis before or after delivery. This type of condition justifies the transfer of pregnant women to a specialized hospital where the newborn may receive appropriate care. We report the case of a 31-week and 4-day gestational-age fetus in whom intrauterine growth retardation and small-bowel volvulus were diagnosed. Additional imaging revealed associated Joubert syndrome. This highlights the need for regular ultrasound monitoring during pregnancy and the comanagement of obstetricians and pediatricians to provide appropriate care before and after delivery.
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Affiliation(s)
- C Aurégan
- Service des urgences pédiatriques, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France.
| | - V Donciu
- Service de radiopédiatrie, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - A-E Millischer
- Service de radiopédiatrie, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - N Khen-Dunlop
- Service de chirurgie viscérale, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - B Deloison
- Service de gynécologie obstétrique, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - P Sonigo
- Service de radiopédiatrie, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - J-F Magny
- Service de néonatalogie, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
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