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Nedday S, Naji Y, Assardoun M, Laadami S, Adali N. Double Cortex Syndrome: An Unusual Cause of Seizures. Cureus 2024; 16:e63507. [PMID: 39081427 PMCID: PMC11288217 DOI: 10.7759/cureus.63507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2024] [Indexed: 08/02/2024] Open
Abstract
Gray matter heterotopia (GMH) is caused by abnormal neuronal migration during brain development. Subcortical band heterotopia (SBH), or double cortex, is a rare variant of GMH that mainly affects female patients with epilepsy (PWE) with different degrees of mental retardation. We present the case of a 25-year-old woman who was admitted to the neurology department of our tertiary hospital with generalized tonic-clonic seizures. Her mother had a normal antenatal period and a history of labor. There was a history of immediate crying and normal appearance, pulse, grimace, activity, and respiration (APGAR) scores. She had delayed milestones, which affected various categories of child development. Physical examination revealed a global developmental delay. Laboratory values, including complete blood count, serum calcium, and arterial blood gas tests, were all within normal limits. An EEG showed significant abnormalities suggestive of epilepsy. An MRI of the brain showed a continuous band of gray matter located deep and parallel to the cortex in both cerebral hemispheres, suggesting double cortex syndrome (DCS).
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Affiliation(s)
- Soumia Nedday
- Department of Neurology, Agadir University Hospital, Agadir, MAR
- Department of Neurology, Neurosciences Innovation Cognition Ethique (NICE) Research Team, Rein Endocrinologie Gastroentérologie Neurosciences Ethique (REGNE) Research Laboratory, Faculty of Medicine and Pharmacy, Ibn Zohr University, Agadir, MAR
| | - Yahya Naji
- Department of Neurology, Agadir Medical School, Agadir, MAR
- Department of Neurology, Neurosciences Innovation Cognition Ethique (NICE) Research Team, Rein Endocrinologie Gastroentérologie Neurosciences Ethique (REGNE) Research Laboratory, Faculty of Medicine and Pharmacy, Ibn Zohr University, Agadir, MAR
| | - Mariam Assardoun
- Department of Neurology, Agadir University Hospital, Agadir, MAR
- Department of Neurology, Neurosciences Innovation Cognition Ethique (NICE) Research Team, Rein Endocrinologie Gastroentérologie Neurosciences Ethique (REGNE) Research Laboratory, Faculty of Medicine and Pharmacy, Ibn Zohr University, Agadir, MAR
| | - Sara Laadami
- Department of Neurology, Agadir University Hospital, Agadir, MAR
- Department of Neurology, Neurosciences Innovation Cognition Ethique (NICE) Research Team, Rein Endocrinologie Gastroentérologie Neurosciences Ethique (REGNE) Research Laboratory, Faculty of Medicine and Pharmacy, Ibn Zohr University, Agadir, MAR
| | - Nawal Adali
- Department of Neurology, Agadir University Hospital, Agadir, MAR
- Department of Neurology, Neurosciences Innovation Cognition Ethique (NICE) Research Team, Rein Endocrinologie Gastroentérologie Neurosciences Ethique (REGNE) Research Laboratory, Faculty of Medicine and Pharmacy, Ibn Zohr University, Agadir, MAR
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Guleroglu FY, Ocal A, Bakirci IT, Cetin A. Does diabetes mellitus affect the development of fetal brain structures and spaces including corpus callosum, subarachnoid space, insula, and parieto-occipital fissure? JOURNAL OF CLINICAL ULTRASOUND : JCU 2023; 51:1483-1491. [PMID: 37864816 DOI: 10.1002/jcu.23597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/14/2023] [Accepted: 10/12/2023] [Indexed: 10/23/2023]
Abstract
PURPOSE We investigated the impact of pregestational and gestational diabetes mellitus (PGDM and GDM) on the development of fetal intracranial structures and spaces. METHODS This prospective cross-sectional study involved singleton pregnancies between 20 and 32 weeks of gestation. The study comprised a control group (n = 65) of healthy pregnant women without diabetes mellitus (DM); a PGDM group (n = 43) of pregnant women having type 2 DM in a controlled diabetic state; and a GDM group (n = 26) of pregnant women with GDM diagnosed with 2-h 75-g oral glucose tolerance test and received intervention to reduce the diabetic impact on fetus. During neurosonographic evaluation, the simultaneous measurements of corpus callosum (CC) width and depth in the midsagittal image; and lateral craniocortical and posterior craniocortical widths of the subarachnoid space and insular and parieto-occipital fissure depths in the axial image were performed. Before statistical analysis, these values were carefully adjusted for the occipitofrontal diameter. RESULTS The DM groups displayed substantially higher frequencies of family history of DM and obstetric history of GDM compared to the control group (p < 0.05). Regarding the neurosonographic parameters, the CC length and insular and parieto-occipital fissure depths were significantly increased in the GDM group but not in the PGDM group (p < 0.05). No significant difference was found among the study groups regarding other neurosonographic parameters (p > 0.05). CONCLUSION The results of neurosonographical evaluation of fetal brain structures and spaces reveal that diabetic impact may not be seen in the presence of PGDM, especially in pregnant women receiving prenatal interventions to reduce or avoid diabetic adverse effects on fetal brain development. The effect of GDM on neurosonographically assessed fetal brain development should be evaluated in further studies with subjects matched for gestational weeks and antenatal care conditions.
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Affiliation(s)
- Filiz Yarsilikal Guleroglu
- Department of Obstetrics and Gynecology, Haseki Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Aydın Ocal
- Department of Obstetrics and Gynecology, Haseki Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Isil Turan Bakirci
- Department of Obstetrics and Gynecology, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
| | - Ali Cetin
- Department of Obstetrics and Gynecology, Haseki Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
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Goo BS, Mun DJ, Kim S, Nhung TTM, Lee SB, Woo Y, Kim SJ, Suh BK, Park SJ, Lee HE, Park K, Jang H, Rah JC, Yoon KJ, Baek ST, Park SY, Park SK. Schizophrenia-associated Mitotic Arrest Deficient-1 (MAD1) regulates the polarity of migrating neurons in the developing neocortex. Mol Psychiatry 2023; 28:856-870. [PMID: 36357673 PMCID: PMC9908555 DOI: 10.1038/s41380-022-01856-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022]
Abstract
Although large-scale genome-wide association studies (GWAS) have identified an association between MAD1L1 (Mitotic Arrest Deficient-1 Like 1) and the pathology of schizophrenia, the molecular mechanisms underlying this association remain unclear. In the present study, we aimed to address these mechanisms by examining the role of MAD1 (the gene product of MAD1L1) in key neurodevelopmental processes in mice and human organoids. Our findings indicated that MAD1 is highly expressed during active cortical development and that MAD1 deficiency leads to impairments in neuronal migration and neurite outgrowth. We also observed that MAD1 is localized to the Golgi apparatus and regulates vesicular trafficking from the Golgi apparatus to the plasma membrane, which is required for the growth and polarity of migrating neurons. In this process, MAD1 physically interacts and collaborates with the kinesin-like protein KIFC3 (kinesin family member C3) to regulate the morphology of the Golgi apparatus and neuronal polarity, thereby ensuring proper neuronal migration and differentiation. Consequently, our findings indicate that MAD1 is an essential regulator of neuronal development and that alterations in MAD1 may underlie schizophrenia pathobiology.
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Affiliation(s)
- Bon Seong Goo
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Dong Jin Mun
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Seunghyun Kim
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Truong Thi My Nhung
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Su Been Lee
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Youngsik Woo
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Soo Jeong Kim
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Bo Kyoung Suh
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Sung Jin Park
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea ,grid.168645.80000 0001 0742 0364Present Address: Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01655 USA
| | - Hee-Eun Lee
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Kunyou Park
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Hyunsoo Jang
- grid.37172.300000 0001 2292 0500Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141 Republic of Korea
| | - Jong-Cheol Rah
- grid.452628.f0000 0004 5905 0571Korea Brain Research Institute, Daegu, 41062 Republic of Korea
| | - Ki-Jun Yoon
- grid.37172.300000 0001 2292 0500Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141 Republic of Korea
| | - Seung Tae Baek
- grid.49100.3c0000 0001 0742 4007Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
| | - Seung-Yeol Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea.
| | - Sang Ki Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea.
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Waechter R, Burgen KS, Punch B, Evans R, Blackmon K, Noël T, Fernandes M, Landon B. Improving neurodevelopment in Zika-exposed children: A randomized controlled trial. PLoS Negl Trop Dis 2022; 16:e0010263. [PMID: 35259172 PMCID: PMC8903297 DOI: 10.1371/journal.pntd.0010263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 02/16/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND While microcephaly is a significant adverse outcome of prenatal exposure to the Zika virus (ZIKV), subtle malformations of cortical development (MCD) have been observed in Zika-exposed children (ZEC), including delays in language, cognition, and motor domains, and visual acuity deficits. Interventions within the first 1,000 days of life can significantly improve developmental outcomes. This study examined a 12-week Responsive Caregiving Intervention on neurodevelopmental outcomes in 24-30-month-old ZEC. METHODOLOGY/PRINCIPAL FINDINGS A randomized controlled trial was implemented in Grenada, West Indies using an existing ZIKV cohort surveillance study. When children in that study turned 24 months, baseline child neurodevelopmental measures and caregiver interviews were administered. Caregivers who agreed to participate in the 12-week Responsive Caregiving Intervention, implemented when children were 24-30 months of age, were randomly assigned to the Intervention or Waitlist Control group. Children in both groups were re-assessed on the neurodevelopmental measures post-intervention. CONCLUSIONS/SIGNIFICANCE 233 children from the ZIKV surveillance study met inclusion criteria, of which n = 80 declined participation, n = 42 did not complete the Intervention, and n = 72 missed follow-up assessments given strict timelines in the study design. The final sample for analysis was N = 13 children in the Intervention group and N = 26 children in the Control group. A GEE model analysis showed significantly higher language (p = 0.021) and positive behaviour (p = 0.005) scores for children in the Intervention group compared to the Control group. The Intervention had a medium effect on child language (d = 0.66) and a large effect on positive behaviour (d = 0.83). A 12-week Responsive Caregiving Intervention Programme significantly improves language and positive behaviour scores in 30-month-old normocephalic children who were exposed to ZIKV in utero. The programme provides an option for mothers of ZIKV-exposed children who are seeking an evidence-based neurodevelopmental intervention regardless of known impact of the virus on cortical formation. TRIAL REGISTRATION The study was registered with clinicaltrials.gov (NCT04697147).
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Affiliation(s)
- Randall Waechter
- Department of Neuroscience, Physiology, and Behavioral Sciences; School of Medicine; St George’s University; Grenada, West Indies
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
- Caribbean Center for Child Neurodevelopment at WINDREF; Grenada, West Indies
- * E-mail:
| | - Kemi S. Burgen
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
- Caribbean Center for Child Neurodevelopment at WINDREF; Grenada, West Indies
| | - Bianca Punch
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
| | - Roberta Evans
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
- Caribbean Center for Child Neurodevelopment at WINDREF; Grenada, West Indies
| | - Karen Blackmon
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
- Mayo Clinic; Department of Psychiatry and Psychology; Jacksonville, Florida, United States of America
| | - Trevor Noël
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
- Office of Research; St. George’s University; Grenada, West Indies
| | - Michelle Fernandes
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
- Faculty of Medicine; Department of Paediatrics; University Hospitals Southampton; University of Southampton; Southampton, United Kingdom
- Nuffield Department of Women’s & Reproductive Health; John Radcliffe Hospital; University of Oxford; Oxford, United Kingdom
| | - Barbara Landon
- Windward Islands Research and Education Foundation; St. George’s University; Grenada, West Indies
- Caribbean Center for Child Neurodevelopment at WINDREF; Grenada, West Indies
- School of Graduate Studies; St. George’s University; Grenada, West Indies
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Mazen I, Mekkawy M, Kamel A, Essawi M, Hassan H, Abdel-Hamid M, Amr K, Soliman H, El-Ruby M, Torky A, El Gammal M, Elaidy A, Bashamboo A, McElreavey K. Advances in genomic diagnosis of a large cohort of Egyptian patients with disorders of sex development. Am J Med Genet A 2021; 185:1666-1677. [PMID: 33742552 DOI: 10.1002/ajmg.a.62129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/28/2021] [Accepted: 01/30/2021] [Indexed: 12/15/2022]
Abstract
Disorders/differences of sex development (DSD) comprise a group of congenital disorders that affect the genitourinary tract and usually involve the endocrine and reproductive system. The aim of this work was to identify genetic variants responsible for disorders of human urogenital development in a cohort of Egyptian patients. This three-year study included 225 patients with various DSD forms, referred to the genetic DSD and endocrinology clinic, National Research Centre, Egypt. The patients underwent thorough clinical examination, hormonal and imaging studies, detailed cytogenetic and fluorescence in situ hybridization analysis, and molecular sequencing of genes known to commonly cause DSD including AR, SRD5A2, 17BHSD3, NR5A1, SRY, and WT1. Whole exome sequencing (WES) was carried out for 18 selected patients. The study revealed a high rate of sex chromosomal DSD (33%) with a wide array of cytogenetic abnormalities. Sanger sequencing identified pathogenic variants in 33.7% of 46,XY patients, while the detection rate of WES reached 66.7%. Our patients showed a different mutational profile compared with that reported in other populations with a predominance of heritable DSD causes. WES identified rare and novel pathogenic variants in NR5A1, WT1, HHAT, CYP19A1, AMH, AMHR2, and FANCA and in the X-linked genes ARX and KDM6A. In addition, digenic inheritance was observed in two of our patients and was suggested to be a cause of the phenotypic variability observed in DSD.
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Affiliation(s)
- Inas Mazen
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Mona Mekkawy
- Department of Human Cytogenetics, National Research Center, Cairo, Egypt
| | - Alaa Kamel
- Department of Human Cytogenetics, National Research Center, Cairo, Egypt
| | - Mona Essawi
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Heba Hassan
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Mohamed Abdel-Hamid
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Khalda Amr
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Hala Soliman
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Mona El-Ruby
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Ahmed Torky
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Mona El Gammal
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Aya Elaidy
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Anu Bashamboo
- Developmental Genetics and Stem Cell Biology, Institut Pasteur, Paris, France
| | - Kenneth McElreavey
- Developmental Genetics and Stem Cell Biology, Institut Pasteur, Paris, France
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Abstract
A 1-year-old neutered male Pekingese was presented for evaluation and further treatment
of cluster seizures. The dog had behavioral abnormalities, and a prosencephalic lesion was
suspected following neurological examination. The dog showed signs of learning difficulty.
Magnetic resonance imaging of the brain revealed a remarkably smooth cerebral cortex with
a reduced number of gyri, as well as a cystic lesion associated with the quadrigeminal
cistern. A diagnosis of lissencephaly, concurrent with a quadrigeminal cisternal cyst, was
made. High-dose and multiple anticonvulsants were necessary to control the seizures. This
is the first report of lissencephaly in a Pekingese.
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Affiliation(s)
- Genya Shimbo
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Michihito Tagawa
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Eiji Oohashi
- Akashiya Animal Clinic, Satsunai Sakura-machi, Makubetsu-cho, Nakagawa-gun, Hokkaido 089-0535, Japan
| | - Masashi Yanagawa
- Department of Applied Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Kazuro Miyahara
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
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