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Mappa I, Marra MC, Patelli C, Lu JLA, D'Antonio F, Rizzo G. Effects of uterine Doppler on midbrain growth and cortical development in late onset fetal growth restricted fetuses: a prospective cross-sectional study. J Matern Fetal Neonatal Med 2024; 37:2318604. [PMID: 38373847 DOI: 10.1080/14767058.2024.2318604] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
OBJECTIVE To investigate midbrain growth, including corpus callusum (CC), cerebellar vermis (CV) and cortical development in late fetal growth restriction (FGR) depending on uterine artery (UtA) Pulsatility Index (PI) values. METHODS This was a prospective study including singleton fetuses with late FGR characterized by abnormal cerebral placental ratio (CPR). According to UtA PI values, the FGR fetuses were subdivided into normal ≤95th centile) and abnormal (>95th centile). Neurosonography was performed at 33-44 weeks of gestations to assess CC and CV lengths and the depth of Sylvian fissure (SF), parieto-occipital (POF) and calcarine fissures (CF). Neurosonographic variables were normalized for fetal head circumference size. RESULTS The study cohort included 60 fetuses with late FGR, 39 with normal UtA PI and 21 with abnormal PI values. The latter group showed significant differences in CC (median (interquartile range) normal 35.9 (28.49-45.53) vs abnormal UtA PI 25.31(19.76-35.13) mm; p < 0.0022), CV (normal 25.78 (18.19-29.35) abnormal UtA PI 17.03 (14.07-24.16)mm; p = 0.0067); SF (normal 10.58 (8.99-11.97)vs abnormal UtA PI 7.44 (6.23-8.46) mm; p < 0.0001), POF (normal 6.85 (6.35-8.14) vs abnormal UtA PI 4.82 (3.46-7.75) mm; p < = 0.0184) and CF (normal 04.157 (2.85-5.41) vs abnormal UtA PI 2.33 (2.49-4.01)); p < 0.0382). CONCLUSIONS Late onset FGR fetuses with abnormal UtA PI showed shorter CC and CV length and delayed cortical development compared to those with normal uterine PI. These findings support the existence of a link between abnormal brain development and changes in utero placental circulation.
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Affiliation(s)
- Ilenia Mappa
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
| | - Maria Chiara Marra
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
| | - Chiara Patelli
- Department of Obstetrics and Gynecology, Università di Chieti, Chieti, Italy
| | - Jia Li Angela Lu
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
| | - Francesco D'Antonio
- Department of Obstetrics and Gynecology, Università di Verona, Verona, Italy
| | - Giuseppe Rizzo
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
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Paladini D, Biancotto G, Della Sala F, Acharya PV. 'Choroid bar': easy-to-seek marker of normal posterior fossa at 12-14 weeks' gestation. Ultrasound Obstet Gynecol 2024; 63:497-501. [PMID: 38145551 DOI: 10.1002/uog.27566] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/29/2023] [Accepted: 12/18/2023] [Indexed: 12/27/2023]
Abstract
OBJECTIVES Our objectives were: (1) to assess the visualization rate of the choroid bar in a consecutive series of 306 first-trimester scans; (2) to verify, in this cohort of fetuses, the normality of the posterior fossa later in pregnancy; and (3) to confirm the non-visualization of the choroid bar in a retrospective series of fetuses with posterior fossa malformations. METHODS This study included a prospective and a retrospective series. The former comprised 306 fetuses undergoing routine obstetric ultrasound at our unit in both the first and second trimesters over a 6-month period, while the latter comprised 12 cases of posterior fossa malformations. In the prospective study, the presence of the choroid bar, which is defined as a visually continuous, homogeneously hyperechogenic, thick structure bridging the cisterna magna from side to side, was evaluated at the end of the first-trimester nuchal translucency scan. In the retrospective study, previously acquired three-dimensional volume datasets were processed in order to assess whether the choroid bar could be visualized in cases of open spinal dysraphisms and vermian cystic anomalies. In the prospective study, confirmation of a normal posterior fossa was based on the sonographic features of this anatomical region at the time of the second-trimester anomaly scan at 19-21 weeks' gestation, while, in the retrospective study, it was based on autopsy results, when available, or further direct imaging of the defect later in pregnancy. RESULTS In the prospective study, the choroid bar could be visualized in all 306 fetuses, on transabdominal ultrasound in 287 (93.8%) cases and on transvaginal ultrasound in 19 (6.2%) cases. The choroid bar was displayed with a ventral/dorsal approach in 67 (21.9%) cases, with a lateral approach in 56 (18.3%) cases and with both in 183 (59.8%) cases. All 306 cases were confirmed to have a sonographically normal posterior fossa at 19-21 weeks. On the other hand, in the retrospective study, it was not possible to visualize the choroid bar in any of the fetuses with posterior fossa malformations. CONCLUSIONS We have described a new sign, the choroid bar, consistent with a normal posterior fossa at 12-14 weeks' gestation. The choroid bar provides the option of screening for major abnormalities of the posterior fossa, since its absence raises suspicion of both open spinal dysraphisms and posterior fossa cystic malformations. At the same time, it is easy to visualize, as it can be seen with all lines of insonation. © 2023 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- D Paladini
- Fetal Medicine and Surgery Unit - IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Dipartimento Universitario di Neuroscienze, Scienze Riproduttive e Odontostomatoogiche - University Federico II of Naples, Naples, Italy
| | - G Biancotto
- Fetal Medicine and Surgery Unit - IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - F Della Sala
- Fetal Medicine and Surgery Unit - IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - P V Acharya
- Paras Advanced Center for Fetal Medicine, Naranpura, Ahmedabad, Gujarat, India
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Taddei M, Bulgheroni S, Erbetta A, Faccio F, Giorgi C, Riva D. Cerebellar cognitive affective syndrome with long-term features of autism spectrum disorder: evidence in a 9-year-old girl after vermian medulloblastoma surgery. Child Neuropsychol 2024:1-9. [PMID: 38362660 DOI: 10.1080/09297049.2024.2302691] [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] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 12/08/2023] [Indexed: 02/17/2024]
Abstract
The time course of socio-communicative disturbances in children after posterior fossa tumor resection is variable in clinical reports, and its assessment may help to understand the role of the cerebellum in the pathogenesis of socio-communicative disorders and improve rehabilitation plans. We report the 3-year cognitive-behavioral follow-up of a female patient (LZ) who underwent surgical ablation of the vermis due to medulloblastoma at age 9. LZ developed a severe post-operative Cerebellar Cognitive Affective Syndrome (CCAS) with cognitive-executive dysfunctions and behavioral alterations resembling an Autism Spectrum Disorder (ASD)-like syndrome. The lack of empathy and reduced ability to recognize others' intentions and mental states persisted at follow-up evaluations, as did language alterations. The present case report evidenced that lesions affecting cerebellar and vermal lobules may cause severe CCAS and impairment of social skills overlapping with that observed in ASD. This case is significant in its clinical features, revealing long-term social impairment, while the cognitive, linguistic, and executive functioning improved over time. Prospective case studies should plan the evaluation of symptoms of ASD within the clinical longitudinal assessment.
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Affiliation(s)
- Matilde Taddei
- Unit for Neurogenetic syndromes with Intellectual Disabilities and Autism Spectrum Disorders, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sara Bulgheroni
- Unit for Neurogenetic syndromes with Intellectual Disabilities and Autism Spectrum Disorders, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Alessandra Erbetta
- Department of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Flavia Faccio
- Unit for Neurogenetic syndromes with Intellectual Disabilities and Autism Spectrum Disorders, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Cesare Giorgi
- Department of Neurosurgery, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Daria Riva
- Unit for Neurogenetic syndromes with Intellectual Disabilities and Autism Spectrum Disorders, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
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Mappa I, Marra MC, Pietrolucci ME, Lu JLA, D'Antonio F, Rizzo G. Midline structures and cortical development in fetuses with late growth restriction according to Doppler status: prospective study. Ultrasound Obstet Gynecol 2024. [PMID: 38279964 DOI: 10.1002/uog.27598] [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] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
OBJECTIVE Fetuses with late growth restriction (FGR) have a higher risk of sub-optimal neurocognitive performance after birth. Previous studies have reported that impaired brain and cortical development can start in utero. The primary aim of this study was to report midline structures and cortical development in fetuses with late growth restriction according to its severity; the secondary aim was to elucidate whether the severity of FGR, as defined by the presence of abnormal Doppler findings, plays a role in affecting brain growth and maturation. METHODS Prospective cross-sectional study including fetuses with late FGR undergoing neurosonography between 32 and 34 weeks of gestation. Midline structures (corpus callosum (CC) and cerebellar vermis (CV) length) and cortical development, including the depth of Sylvian (SF), parieto-occipital (POF) and calcarine (CF) were compared between FGR, small (SGA) and appropriate for gestational age (AGA) fetuses, defined upon the Delphi criteria. Sub-group analysis according to the severity of FGR (normal vs abnormal fetal Dopplers) was also performed. Univariate analysis was used to analyze the data. RESULTS 52 FGR with normal, 60 with abnormal Dopplers, 64 SGA and 100 AGA fetuses were included in the analysis. SGA and FGR fetuses showed significant differences in absolute values of CC (median (interquartile range) control 43.47 (28.9-56.05), vs SGA 41.85 (27.82-51.79), vs FGR ND 38.54 (29.12-50.53), vs FGR AD 31.72 (23.8-40.19) K= 26.68; p<0.0001), CV (control 24.85 (17.55-29.21), SGA K=16.71; p=0.0008), SF (control 14.52 (10.65-16.76) vs SGA 12.71 (9.8-15.10) vs FGR ND 11.93 (9.12-13.43) VS FGR A 8.30 (6.72-10.33) K=75.82; p<0.0001), POF (control 8.56 (6.31-11.09) vs SGA 8.11 (5.58-10.43) vs FGR ND 7.81 (6.14-9.29) vs FGR AD 6.56 (4.22-7.99), K=45.06; p<0.0001) and CF ( control 9.27 (6.70-11.45) vs SGA 8.23 (5.67-10.65) vs FGR ND 7.68 (5.22-9.41) vs FGR AD 6.26 (4.48-7.19) K=46.14; p<0.0001) when compared to AGA controls with a progressive reduction across groups. When neurosonographic variables were corrected for fetal HC values, significant difference in the length of CC, SF, POF and CF but CV were observed only in FGR fetuses with abnormal Doppler when compared to AGA controls. CONCLUSIONS Late onset small fetuses showed shorter CC length and a delayed cortical development when compared to control. After controlling for HC size these differences remain significant only in FGR fetuses with abnormal Dopplers. These findings support the existence of a link between brain development and impaired placental function. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- I Mappa
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - M C Marra
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - M E Pietrolucci
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - J L A Lu
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - F D'Antonio
- Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy
| | - G Rizzo
- Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy
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Volpe P, De Robertis V, Fanelli T, Volpe G, Olivieri C, Boito S, Persico N. Impact of choroid plexus size in prenatal diagnosis of normal and abnormal closure of fourth ventricle. Ultrasound Obstet Gynecol 2023; 62:875-881. [PMID: 37266920 DOI: 10.1002/uog.26278] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/18/2023] [Accepted: 05/24/2023] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To assess the role of the choroid plexus (CP) of the fourth ventricle (4V) in fetuses with an open 4V and a normal cerebellar vermis. METHODS Two groups of patients were recruited in two fetal medicine referral centers. The prospectively collected control group included singleton pregnancies with a normal sonographic examination after first-trimester combined screening for chromosomal abnormalities and normal outcome, recruited in the period between 2019 and 2022. The study group was selected retrospectively by searching our databases to identify all cases with an isolated open 4V and normal anatomy and size of the cerebellar vermis. The inclusion criteria of the study group were: (1) gestational age between 20 and 22 weeks; (2) a brainstem-vermis angle ≥ 18° in the midsagittal plane with an otherwise normal cerebellum and vermis; (3) 4V-CP visible and seen separately from the vermis; (4) absence of other intra- and extracranial anomalies; and (5) available prenatal and/or postnatal magnetic resonance imaging (MRI) data. RESULTS In 169 cases of the control group, the 4V-CP was seen separately from the cerebellar vermis and was noticed to progressively fill the space caudal to the 4V, between the vermis and brainstem. From 12 to 22 weeks, the surface areas of the vermis and medial portion of the 4V-CP increased progressively with advancing gestation (P < 0.0001). Intra- and interobserver correlation analysis showed good reproducibility for the measurements. Among the cases with an open 4V and a normal vermis, it was retrospectively feasible to visualize the 4V-CP separately from the inferior part of the vermis in 41 fetuses. In five of these cases, the open 4V was due to a small CP. In all 41 fetuses, the diagnosis on MRI was isolated upward rotation of the cerebellar vermis, and no additional anomaly was found. CONCLUSIONS Closure of the 4V is dependent on the 4V-CP and not only the cerebellar vermis. In fact, a small CP may represent another cause of an open 4V. Therefore, separate visualization of the 4V-CP and cerebellar vermis is crucial to improve discrimination between the different causes of an open 4V at the anomaly scan and its clinical implications. © 2023 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- P Volpe
- Fetal Medicine Unit, Di Venere and Sarcone Hospitals, Bari, Italy
| | - V De Robertis
- Fetal Medicine Unit, Di Venere and Sarcone Hospitals, Bari, Italy
| | - T Fanelli
- Fetal Medicine Unit, Di Venere and Sarcone Hospitals, Bari, Italy
| | - G Volpe
- Fetal Medicine and Surgery Service, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - C Olivieri
- Fetal Medicine Unit, Di Venere and Sarcone Hospitals, Bari, Italy
| | - S Boito
- Fetal Medicine and Surgery Service, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - N Persico
- Fetal Medicine and Surgery Service, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Clinical Science and Community Health, University of Milan, Milan, Italy
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Saleem A, Harmata G, Jain S, Voss MW, Fiedorowicz JG, Williams AJ, Shaffer JJ, Richards JG, Barsotti EJ, Sathyaputri L, Schmitz SL, Christensen GE, Long JD, Xu J, Wemmie JA, Magnotta VA. Functional connectivity of the cerebellar vermis in bipolar disorder and associations with mood. Front Psychiatry 2023; 14:1147540. [PMID: 37215681 PMCID: PMC10196126 DOI: 10.3389/fpsyt.2023.1147540] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/12/2023] [Indexed: 05/24/2023] Open
Abstract
Purpose Studies of the neural underpinnings of bipolar type I disorder have focused on the emotional control network. However, there is also growing evidence for cerebellar involvement, including abnormal structure, function, and metabolism. Here, we sought to assess functional connectivity of the cerebellar vermis with the cerebrum in bipolar disorder and to assess whether connectivity might depend on mood. Methods This cross-sectional study enrolled 128 participants with bipolar type I disorder and 83 control comparison participants who completed a 3 T magnetic resonance imaging (MRI) study, which included anatomical as well as resting state Blood Oxygenation Level Dependent (BOLD) imaging. Functional connectivity of the cerebellar vermis to all other brain regions was assessed. Based on quality control metrics of the fMRI data, 109 participants with bipolar disorder and 79 controls were included in the statistical analysis comparing connectivity of the vermis. In addition, the data was explored for the potential impacts of mood, symptom burden, and medication in those with bipolar disorder. Results Functional connectivity between the cerebellar vermis and the cerebrum was found to be aberrant in bipolar disorder. The connectivity of the vermis was found to be greater in bipolar disorder to regions involved in motor control and emotion (trending), while reduced connectivity was observed to a region associated with language production. In the participants with bipolar disorder, past depression symptom burden affected connectivity; however, no effects of medication were observed. Functional connectivity between the cerebellar vermis and all other regions revealed an inverse association with current mood ratings. Conclusion Together the findings may suggest that the cerebellum plays a compensatory role in bipolar disorder. The proximity of the cerebellar vermis to the skull may make this region a potential target for treatment with transcranial magnetic stimulation.
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Affiliation(s)
- Arshaq Saleem
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, United States
| | - Gail Harmata
- Department of Radiology, University of Iowa, Iowa City, IA, United States
| | - Shivangi Jain
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, United States
| | - Michelle W. Voss
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, United States
| | - Jess G. Fiedorowicz
- The Ottawa Hospital, Ottawa Hospital Research Institute, University of Ottawa Brain and Mind Research Institute, Ottawa, ON, Canada
| | | | - Joseph J. Shaffer
- Department of Radiology, University of Iowa, Iowa City, IA, United States
- Department of Biosciences, Kansas City University, Kansas City, MO, United States
| | | | | | - Leela Sathyaputri
- Department of Psychiatry, University of Iowa, Iowa City, IA, United States
- Embracing the World, Elburn, IL, United States
| | - Samantha L. Schmitz
- Department of Psychiatry, University of Iowa, Iowa City, IA, United States
- College of Osteopathic Medicine, Des Moines University, Des Moines, IA, United States
| | - Gary E. Christensen
- Department of Electrical and Computer Engineering, University of Iowa, Iowa City, IA, United States
- Department of Radiation Oncology, University of Iowa, Iowa City, IA, United States
| | - Jeffrey D. Long
- Department of Psychiatry, University of Iowa, Iowa City, IA, United States
- Department of Biostatistics, University of Iowa, Iowa City, IA, United States
| | - Jia Xu
- Department of Radiology, University of Iowa, Iowa City, IA, United States
| | - John A. Wemmie
- Department of Psychiatry, University of Iowa, Iowa City, IA, United States
- Veterans Affairs Medical Center, Iowa City, IA, United States
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, United States
- Department of Neurosurgery, University of Iowa, Iowa City, IA, United States
| | - Vincent A. Magnotta
- Department of Radiology, University of Iowa, Iowa City, IA, United States
- Department of Psychiatry, University of Iowa, Iowa City, IA, United States
- Department of Biomedical Engineering, University of Iowa, Iowa City, IA, United States
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Saleem A, Harmata G, Jain S, Voss MW, Fiedorowicz JG, Williams A, Shaffer JJ, Richards JG, Barsotti EJ, Sathyaputri L, Schmitz SL, Christensen GE, Long JD, Xu J, Wemmie JA, Magnotta VA. Functional Connectivity of the Cerebellar Vermis in Bipolar Disorder and Associations with Mood. bioRxiv 2023:2023.02.02.526878. [PMID: 36778335 PMCID: PMC9915674 DOI: 10.1101/2023.02.02.526878] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Purpose Studies of the neural underpinnings of bipolar type I disorder have focused on the emotional control network. However, there is also growing evidence for cerebellar involvement, including abnormal structure, function, and metabolism. Here, we sought to assess functional connectivity of the cerebellum with the cerebrum in bipolar disorder and to assess whether any effects might depend on mood. Methods This cross-sectional study enrolled 128 participants with bipolar type I disorder and 83 control comparison participants who completed a 3T MRI scan, which included anatomical imaging as well as resting state BOLD imaging. Functional connectivity of the cerebellar vermis to all other brain regions was assessed. Based on quality control metrics of the fMRI data, 109 participants with bipolar disorder and 79 controls were used to in the statistical analysis comparing connectivity of the vermis as well as associations with mood. Potential impacts of medications were also explored. Results Functional connectivity of the cerebellar vermis in bipolar disorder was found to differ significantly between brain regions known to be involved in the control of emotion, motor function, and language. While connections with emotion and motor control areas were significantly stronger in bipolar disorder, connection to a region associated language production was significantly weaker. In the participants with bipolar disorder, ratings of depression and mania were inversely associated with vermis functional connectivity. No effect of medications on these connections were observed. Conclusion Together the findings suggest cerebellum may play a compensatory role in bipolar disorder and when it can no longer fulfill this role, depression and mania develop. The proximity of the cerebellar vermis to the skull may make this region a potential target for treatment with transcranial magnetic stimulation.
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Affiliation(s)
- Arshaq Saleem
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, 52242
| | - Gail Harmata
- Department of Radiology, University of Iowa, Iowa City, IA, 52242
| | - Shivangi Jain
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, 52242
| | - Michelle W. Voss
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, 52242
| | - Jess G. Fiedorowicz
- The Ottawa Hospital, Ottawa Hospital Research Institute, University of Ottawa Brain & Mind Research Institute, Ottawa ON Canada K1H 8L6
| | - Aislinn Williams
- Department of Psychiatry, University of Iowa, Iowa City, IA, 52242
| | | | | | | | - Leela Sathyaputri
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, 52242
| | - Samantha L. Schmitz
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, 52242
| | - Gary E. Christensen
- Department of Electrical and Computer Engineering, University of Iowa, Iowa City, IA, 52242,Department of Radiation Oncology, University of Iowa, Iowa City, IA, 52242
| | - Jeffrey D. Long
- Department of Psychiatry, University of Iowa, Iowa City, IA, 52242,Department of Biostatistics, University of Iowa, Iowa City, IA, 52242
| | - Jia Xu
- Department of Radiology, University of Iowa, Iowa City, IA, 52242
| | - John A. Wemmie
- Department of Psychiatry, University of Iowa, Iowa City, IA, 52242,Veterans Affairs Medical Center, Iowa City, Iowa, USA,Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, Iowa, USA,Department of Neurosurgery, University of Iowa, Iowa City, IA, 52242
| | - Vincent A. Magnotta
- Department of Radiology, University of Iowa, Iowa City, IA, 52242,Department of Psychiatry, University of Iowa, Iowa City, IA, 52242,Department of Biomedical Engineering, University of Iowa, Iowa City, IA, 52242
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Rizzo G, Pietrolucci ME, De Vito M, Pavjola M, Capponi A, Mappa I. Fetal brain biometry and cortical development in congenital heart disease: A prospective cross sectional study. J Clin Ultrasound 2023; 51:84-90. [PMID: 36069371 DOI: 10.1002/jcu.23308] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To evaluate brain biometry and cortical development by neurosonography in fetuses with congenital heart defect (CHD) and evaluate differences among different type of CHD. METHODS In a prospective cross sectional study singleton fetus with CHD were matched with controls and grouped into two categories according to the predicted severity of cerebral arterial oxygen deficit induced by the CHD: Group A mildly reduced or normal and Group B moderately to severely reduced. Neurosonography was done at 30-33 weeks to obtain measurements of corpus callosum (CC), cerebellar vermis (CV), Sylvian fissure (SF) insula, parieto-occipital fissure (POF), and calcarine sulci fissures (CSF). All the neurosonographic parameters were adjusted by head circumference (HC). RESULTS A total of 78 fetuses with CHD (group A 30; group B 48) and 80 matched controls form uncomplicated pregnancies were considered. CHD fetuses have significantly smaller CC, CV, SF, and POF and bigger insula when compared to control fetuses. These differences are more marked in group B fetuses. These differences remained significant after correction for HC values. CONCLUSION Fetuses with CHD have an impaired cortical development and these variations are more evident in those with a predicted lower oxygen delivery to the brain.
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Affiliation(s)
- Giuseppe Rizzo
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - Maria Elena Pietrolucci
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - Marika De Vito
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - Maqina Pavjola
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
| | - Alessandra Capponi
- Department of Obstetrics and Gynecology, Ospedale San Giovanni Rome, Rome, Italy
| | - Ilenia Mappa
- Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy
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Maderkova Tozzi M, Furstova J, Lubusky M. Should 3D volume assessment of the corpus callosum and cerebellar vermis be a part of a routine second trimester screening? Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2022; 166:428-433. [PMID: 34042099 DOI: 10.5507/bp.2021.033] [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] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/13/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The majority of fetal structural defects can be detected in the second trimester, thus this is the main time for screening for structural defects. 3D imaging of the fetal brain does not create a common part of this screening. METHODS This prospective observational study was conducted at the Fetal Medicine Center of The Gynecological-Obstetrical Department of the University Hospital Olomouc in years 2017-2020. The study sample was 451 consecutively scanned morphologically normal fetuses attending for routine second trimester anatomical survey at 20-22 weeks of pregnancy. A transabdominal 3D ultrasound volume acquisition of fetal brain was obtained from an axial and sagittal plane using skull sutures as an acoustic window. RESULTS Both the corpus callosum (CC) and the vermis (VC) were detected in 51.7% of examinations in the sagittal plane, and in 31.7% in the axial plane. In 61.9% of the examinations, there was at least partial detection in both planes. Maternal BMI was found to be the only significant predictor of the quality of imaging in both planes. CONCLUSION 3D acquisition of fetal brain images in the sagittal plane followed by manipulation of acquired volume was valuable in assessment of corpus callosum and cerebellar vermis. This allows reconstruction of the sagittal plane that can be difficult to obtain in 2D imaging.
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Affiliation(s)
- Michaela Maderkova Tozzi
- Department of Obstetrics and Gynecology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Czech Republic
| | - Jana Furstova
- Olomouc University Social Health Institute, Palacky University Olomouc, Czech Republic
| | - Marek Lubusky
- Department of Obstetrics and Gynecology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Czech Republic
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10
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Birnbaum R, Barzilay R, Brusilov M, Acharya P, Malinger G, Krajden Haratz K. Early second-trimester three-dimensional transvaginal neurosonography of fetal midbrain and hindbrain: normative data and technical aspects. Ultrasound Obstet Gynecol 2022; 59:317-324. [PMID: 34002885 DOI: 10.1002/uog.23691] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/11/2021] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVES To provide a detailed description of the sonographic appearance and development of various fetal structures of the midbrain and hindbrain (MBHB) during the early second trimester, and to evaluate the impact of the frequency of the transvaginal sonography (TVS) transducer on the early recognition of these structures. METHODS This was a retrospective analysis of three-dimensional volumetric datasets of the MBHB from apparently normal fetuses at 14-19 gestational weeks, acquired by TVS in the midsagittal view through the posterior fontanelle. Using a multiplanar approach, we measured the tectal thickness and length, aqueductal thickness, tegmental thickness and width and height of the Blake's pouch (BP) neck. In addition, we assessed the existence of early vermian fissures, the linear shape of the brainstem and the components of the fastigium. The correlation between gestational age according to last menstrual period and sonographic measurements of MBHB structures was evaluated using Pearson's correlation (r). A subanalysis was performed to assess the performance of a 5-9-MHz vs a 6-12-MHz TVS transducer in visualizing the MBHB structures in the early second trimester. RESULTS Sixty brain volumes were included in the study, obtained at a mean gestational age of 16.2 weeks (range, 14.1-19.0 weeks), with a transverse cerebellar diameter range of 13.0-19.8 mm. We found a strong correlation between gestational age and all MBHB measurements, with the exception of the tectal, tegmental and aqueductal thicknesses, for which the correlation was moderate. There was good-to-excellent intraobserver and moderate-to-good interobserver correlation for most MBHB measurements. We observed that the BP neck was patent in all fetuses between 14 and 18 weeks with decreasing diameter, and that the aqueductal thickness was significantly smaller at ≥ 18 weeks compared with at < 16 weeks. The early vermian fissures and the linear shape of the brainstem were present in all fetuses from 14 weeks. We found that, in the early second trimester, the horizontal arm of the presumed 'fastigium' evolves from the fourth ventricular choroid plexus and not the posterior vermis, indicating that this is not the fastigium. Standard- and high-resolution TVS transducers performed similarly in the assessment of MBHB anatomy. CONCLUSION Detailed early second-trimester assessment of the MBHB is feasible by transvaginal neurosonography and provides reference data which may help in the early detection of brain pathology involving the MBHB. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- R Birnbaum
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - R Barzilay
- Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA
| | - M Brusilov
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - P Acharya
- Paras Advanced Center for Fetal Medicine, Ahmedabad, India
| | - G Malinger
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - K Krajden Haratz
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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11
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Hua JPY, Abram SV, Ford JM. Cerebellar stimulation in schizophrenia: A systematic review of the evidence and an overview of the methods. Front Psychiatry 2022; 13:1069488. [PMID: 36620688 PMCID: PMC9815121 DOI: 10.3389/fpsyt.2022.1069488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Cerebellar structural and functional abnormalities underlie widespread deficits in clinical, cognitive, and motor functioning that are observed in schizophrenia. Consequently, the cerebellum is a promising target for novel schizophrenia treatments. Here we conducted an updated systematic review examining the literature on cerebellar stimulation efficacy and tolerability for mitigating symptoms of schizophrenia. We discuss the purported mechanisms of cerebellar stimulation, current methods for implementing stimulation, and future directions of cerebellar stimulation for intervention development with this population. METHODS Two independent authors identified 20 published studies (7 randomized controlled trials, 7 open-label studies, 1 pilot study, 4 case reports, 1 preclinical study) that describe the effects of cerebellar circuitry modulation in patients with schizophrenia or animal models of psychosis. Published studies up to October 11, 2022 were identified from a search within PubMed, Scopus, and PsycInfo. RESULTS Most studies stimulating the cerebellum used transcranial magnetic stimulation or transcranial direct-current stimulation, specifically targeting the cerebellar vermis/midline. Accounting for levels of methodological rigor across studies, these studies detected post-cerebellar modulation in schizophrenia as indicated by the alleviation of certain clinical symptoms (mainly negative and depressive symptoms), as well as increased frontal-cerebellar connectivity and augmentation of canonical neuro-oscillations known to be abnormal in schizophrenia. In contrast to a prior review, we did not find consistent evidence for cognitive improvements following cerebellar modulation stimulation. Modern cerebellar stimulation methods appear tolerable for individuals with schizophrenia, with only mild and temporary side effects. CONCLUSION Cerebellar stimulation is a promising intervention for individuals with schizophrenia that may be more relevant to some symptom domains than others. Initial results highlight the need for continued research using more methodologically rigorous designs, such as additional longitudinal and randomized controlled trials. SYSTEMATIC REVIEW REGISTRATION [https://www.crd.york.ac.uk/prospero/], identifier [CRD42022346667].
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Affiliation(s)
- Jessica P Y Hua
- Sierra Pacific Mental Illness Research Education and Clinical Centers, San Francisco Veterans Affairs Medical Center, University of California, San Francisco, San Francisco, CA, United States.,San Francisco Veterans Affairs Medical Center, San Francisco, CA, United States.,Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco, CA, United States
| | - Samantha V Abram
- San Francisco Veterans Affairs Medical Center, San Francisco, CA, United States.,Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco, CA, United States
| | - Judith M Ford
- San Francisco Veterans Affairs Medical Center, San Francisco, CA, United States.,Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco, CA, United States
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12
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Tan HX, Wei QC, Chen Y, Xie YJ, Guo QF, He L, Gao Q. The Immediate Effects of Intermittent Theta Burst Stimulation of the Cerebellar Vermis on Cerebral Cortical Excitability During a Balance Task in Healthy Individuals: A Pilot Study. Front Hum Neurosci 2021; 15:748241. [PMID: 34867241 PMCID: PMC8632863 DOI: 10.3389/fnhum.2021.748241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/25/2021] [Indexed: 02/05/2023] Open
Abstract
Objective: This pilot study aimed to investigate the immediate effects of single-session intermittent theta-burst stimulation (iTBS) on the cerebellar vermis during a balance task, which could unveil the changes of cerebral cortical excitability in healthy individuals. Subjects: A total of seven right-handed healthy subjects (26.86 ± 5.30 years) were included in this study. Interventions: Each subject received single-session iTBS on cerebellar vermis in a sitting position. Main Measures: Before and after the intervention, all subjects were asked to repeat the balance task of standing on the left leg three times. Each task consisted of 15 s of standing and 20 s of resting. Real-time changes in cerebral cortex oxygen concentrations were monitored with functional near-infrared spectroscopy (fNIRS). During the task, changes in blood oxygen concentration were recorded and converted into the mean HbO2 for statistical analysis. Results: After stimulation, the mean HbO2 in the left SMA (P = 0.029) and right SMA (P = 0.043) significantly increased compared with baseline. However, no significant changes of mean HbO2 were found in the bilateral dorsolateral prefrontal lobe (P > 0.05). Conclusion: Single-session iTBS on the cerebellar vermis in healthy adults can increase the excitability of the cerebral cortex in the bilateral supplementary motor areas during balance tasks. Clinical Trial Registration: [www.ClinicalTrials.gov], identifier [ChiCTR2100048915].
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Affiliation(s)
- Hui-Xin Tan
- West China Hospital, Sichuan University, Chengdu, China.,Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qing-Chuan Wei
- West China Hospital, Sichuan University, Chengdu, China.,Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Chen
- West China Hospital, Sichuan University, Chengdu, China.,Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yun-Juan Xie
- West China Hospital, Sichuan University, Chengdu, China.,Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qi-Fan Guo
- West China Hospital, Sichuan University, Chengdu, China.,Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lin He
- West China Hospital, Sichuan University, Chengdu, China.,Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qiang Gao
- West China Hospital, Sichuan University, Chengdu, China.,Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
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13
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Ojiro R, Watanabe Y, Okano H, Takahashi Y, Takashima K, Tang Q, Ozawa S, Saito F, Akahori Y, Jin M, Yoshida T, Shibutani M. Gene expression profiles of multiple brain regions in rats differ between developmental and postpubertal exposure to valproic acid. J Appl Toxicol 2021; 42:864-882. [PMID: 34779009 DOI: 10.1002/jat.4263] [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] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/06/2021] [Accepted: 10/19/2021] [Indexed: 11/05/2022]
Abstract
We have previously reported that the valproic acid (VPA)-induced disruption pattern of hippocampal adult neurogenesis differs between developmental and 28-day postpubertal exposure. In the present study, we performed brain region-specific global gene expression profiling to compare the profiles of VPA-induced neurotoxicity between developmental and postpubertal exposure. Offspring exposed to VPA at 0, 667, and 2000 parts per million (ppm) via maternal drinking water from gestational day 6 until weaning (postnatal day 21) were examined, along with male rats orally administered VPA at 0, 200, and 900 mg/kg body weight for 28 days starting at 5 weeks old. Four brain regions-the hippocampal dentate gyrus, corpus callosum, cerebral cortex, and cerebellar vermis-were subjected to expression microarray analysis. Profiled data suggested a region-specific pattern of effects after developmental VPA exposure, and a common pattern of effects among brain regions after postpubertal VPA exposure. Developmental VPA exposure typically led to the altered expression of genes related to nervous system development (Msx1, Xcl1, Foxj1, Prdm16, C3, and Kif11) in the hippocampus, and those related to nervous system development (Neurod1) and gliogenesis (Notch1 and Sox9) in the corpus callosum. Postpubertal VPA exposure led to the altered expression of genes related to neuronal differentiation and projection (Cd47, Cyr61, Dbi, Adamts1, and Btg2) in multiple brain regions. These findings suggested that neurotoxic patterns of VPA might be different between developmental and postpubertal exposure, which was consistent with our previous study. Of note, the hippocampal dentate gyrus might be a sensitive target of developmental neurotoxicants after puberty.
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Affiliation(s)
- Ryota Ojiro
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Yousuke Watanabe
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Hiromu Okano
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Yasunori Takahashi
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Kazumi Takashima
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Qian Tang
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Shunsuke Ozawa
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Fumiyo Saito
- Chemicals Assessment and Research Center, Chemicals Evaluation and Research Institute, Japan, Bunkyo-ku, Tokyo, Japan.,Department of Toxicology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari-shi, Ehime, Japan
| | - Yumi Akahori
- Chemicals Assessment and Research Center, Chemicals Evaluation and Research Institute, Japan, Bunkyo-ku, Tokyo, Japan
| | - Meilan Jin
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Toshinori Yoshida
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Makoto Shibutani
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan.,Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
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14
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Suciu SK, Long AB, Caspary T. Smoothened and ARL13B are critical in mouse for superior cerebellar peduncle targeting. Genetics 2021; 218:6300527. [PMID: 34132778 PMCID: PMC8864748 DOI: 10.1093/genetics/iyab084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 04/28/2021] [Accepted: 06/15/2021] [Indexed: 01/07/2023] Open
Abstract
Patients with the ciliopathy Joubert syndrome present with physical anomalies, intellectual disability, and a hindbrain malformation described as the "molar tooth sign" due to its appearance on an MRI. This radiological abnormality results from a combination of hypoplasia of the cerebellar vermis and inappropriate targeting of the white matter tracts of the superior cerebellar peduncles. ARL13B is a cilia-enriched regulatory GTPase established to regulate cell fate, cell proliferation, and axon guidance through vertebrate Hedgehog signaling. In patients, mutations in ARL13B cause Joubert syndrome. To understand the etiology of the molar tooth sign, we used mouse models to investigate the role of ARL13B during cerebellar development. We found that ARL13B regulates superior cerebellar peduncle targeting and these fiber tracts require Hedgehog signaling for proper guidance. However, in mouse, the Joubert-causing R79Q mutation in ARL13B does not disrupt Hedgehog signaling nor does it impact tract targeting. We found a small cerebellar vermis in mice lacking ARL13B function but no cerebellar vermis hypoplasia in mice expressing the Joubert-causing R79Q mutation. In addition, mice expressing a cilia-excluded variant of ARL13B that transduces Hedgehog normally showed normal tract targeting and vermis width. Taken together, our data indicate that ARL13B is critical for the control of cerebellar vermis width as well as superior cerebellar peduncle axon guidance, likely via Hedgehog signaling. Thus, our work highlights the complexity of ARL13B in molar tooth sign etiology.
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Affiliation(s)
- Sarah K Suciu
- Genetics and Molecular Biology Graduate Program, Emory University, Atlanta, GA 30322, USA,Department of Human Genetics, Emory University, Atlanta, GA 30322, USA
| | - Alyssa B Long
- Department of Human Genetics, Emory University, Atlanta, GA 30322, USA
| | - Tamara Caspary
- Department of Human Genetics, Emory University, Atlanta, GA 30322, USA,Corresponding author: Department of Human Genetics, 615 Michael Street, Suite 301, Atlanta, GA 30322.
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15
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Porras Segovia A, Guerrero-Jiménez M, Carrillo de Albornoz Calahorro CM, Gutierrez-Rojas L. Psychosis and Dandy-Walker syndrome: a case report and review of the literature. Gen Psychiatr 2021; 34:e100254. [PMID: 33937630 PMCID: PMC8054076 DOI: 10.1136/gpsych-2020-100254] [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: 05/09/2020] [Revised: 02/21/2021] [Accepted: 03/02/2021] [Indexed: 11/03/2022] Open
Abstract
Dandy-Walker syndrome (DWS) is a group of brain malformations which sometimes present with psychotic symptoms. We present the case of a patient diagnosed with Dandy-Walker variant who presented with schizophrenia-like psychosis. A man in his 30s was admitted to an acute psychiatric unit presenting with persecutory delusions, auditory hallucinations and violent behaviour. The MRI performed showed the typical alterations of Dandy-Walker variant: vermian hypoplasia and cystic dilatation of the fourth ventricle. He also suffered from mild intellectual disability. After being treated with olanzapine 10 mg/d for a month, his psychotic symptoms greatly improved and he was discharged. In conclusion, DWS may cause psychosis through a dysfunction in the circuit connecting prefrontal, thalamic and cerebellar areas. The association between these two conditions may contribute to the understanding of the aetiopathogenesis of schizophrenia.
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Behram M, Oğlak SC, Ölmez F, Gedik Özköse Z, Süzen Çaypınar S, Başkıran Y, Sezer S, Erdoğan K, Yüksel MA, Özdemir İ. Blake's pouch cyst: Prenatal diagnosis and management. Turk J Obstet Gynecol 2021; 18:44-49. [PMID: 33715332 PMCID: PMC7962159 DOI: 10.4274/tjod.galenos.2020.21703] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Objective: This study aimed to present the characteristic features of 19 patients who were diagnosed as having Blake’s pouch cyst (BPC) at our center. Materials and Methods: Nineteen patients diagnosed as BPC between 2015 and 2019 were included in this retrospective study. Follow-up examinations were performed using ultrasonography (US) every three weeks up to 35 weeks of gestation. Prenatal magnetic resonance imaging (MRI) was performed at the time of diagnosis or during follow-up in 13 patients. MRI or transfontanellar US was performed to confirm the diagnosis of BPC after delivery. Karyotype results of eight patients were recorded. Results: Isolated BPC was observed in 9 (47%) patients, and associated anomalies were detected in 10 (53%) patients, including seven (36%) with the central nervous system and four (21%) with cardiac anomalies. Two fetuses had abnormal karyotype analysis as trisomy 21 and 13. The MRI report of eight patients was “differential diagnosis required for Dandy-Walker complex” and only in five (26%) patients, it was reported to be compatible with BPC. Spontaneous resolution was seen in four patients. Postnatal MRI was performed in five patients, and transfontanellar US in two patients, and all MRI and US results were consistent with BPC. During the neonatal period, abnormal neurologic development was observed in four (21%) patients, and one (5%) died. Conclusion: Although the prognosis of isolated BPC is very good with healthy neurologic development until advanced ages, death in the early neonatal period and abnormal neurologic development may be observed depending on the condition of the associated anomalies.
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Affiliation(s)
- Mustafa Behram
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Perinatology, İstanbul, Turkey
| | - Süleyman Cemil Oğlak
- University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital, Clinic of Obstetrics and Gynecology, Diyarbakır, Turkey
| | - Fatma Ölmez
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Obstetrics and Gynecology, İstanbul, Turkey
| | - Zeynep Gedik Özköse
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Perinatology, İstanbul, Turkey
| | - Sema Süzen Çaypınar
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Perinatology, İstanbul, Turkey
| | - Yusuf Başkıran
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Perinatology, İstanbul, Turkey
| | - Salim Sezer
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Perinatology, İstanbul, Turkey
| | - Kadriye Erdoğan
- University of Health Sciences Turkey, Etlik Zübeyde Hanım Women's Health Training and Research Hospital, Clinicof Obstetrics and Gynecology, Ankara, Turkey
| | - Mehmet Aytaç Yüksel
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Perinatology, İstanbul, Turkey
| | - İsmail Özdemir
- University of Health Sciences Turkey, Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Perinatology, İstanbul, Turkey
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17
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Dovjak GO, Diogo MC, Brugger PC, Gruber GM, Weber M, Glatter S, Seidl R, Bettelheim D, Prayer D, Kasprian GJ. Quantitative fetal magnetic resonance imaging assessment of cystic posterior fossa malformations. Ultrasound Obstet Gynecol 2020; 56:78-85. [PMID: 31595598 PMCID: PMC7384051 DOI: 10.1002/uog.21890] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 05/05/2023]
Abstract
OBJECTIVE Normal cognitive development usually requires a structurally intact and complete cerebellar vermis. The aim of this study was to evaluate whether quantification by fetal magnetic resonance imaging (MRI) of vermis- and brainstem-specific imaging markers improves the definition of cystic posterior fossa malformations (cPFM). METHODS Fetuses diagnosed with cPFM that had an available midsagittal plane on T2-weighted MRI were identified retrospectively and compared with gestational-age (GA) matched brain-normal controls. Fetuses with cPFM were assigned to three groups, according to standard criteria (vermian size and brainstem-vermis (BV) angle): normal vermian area and BV angle < 25° (Group 1); reduced vermian area and/or BV angle of 25-45° (Group 2); and reduced vermian area and BV angle > 45° (Group 3; Dandy-Walker malformation (DWM) group). The number of differentiable vermian lobules and the areas of the vermis, mesencephalon, pons and medulla oblongata were quantified, correlated with and controlled for GA, and compared between the study groups. RESULTS In total, 142 cases of cPFM were included, with a mean GA of 25.20 ± 5.11 weeks. Cases comprised Blake's pouch cyst (n = 46), arachnoid cyst (n = 12), inferior vermian hypoplasia (n = 5), megacisterna magna (n = 35) and classic DWM (n = 44). In the control group, 148 fetuses were included, with a mean GA of 25.26 ± 4.12 weeks. All quantified areas and the number of differentiable vermian lobules had a significant positive correlation with GA. The number of vermian lobules and the areas of all quantified regions, except for that of the medulla oblongata, differed significantly between the study groups (P ≤ 0.015 for all). The control group had the highest number of differentiable vermian lobules and the DWM group had the lowest (P < 0.01). CONCLUSIONS Prenatal MRI assessment of vermian lobules is a useful addition to standard neuroradiological and neurosonographic techniques. The quantification of vermian lobules using fetal MRI allows further differentiation of cPFM into subgroups and thereby improves the classification of hindbrain malformations. © 2019 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- G. O. Dovjak
- Department of Biomedical Imaging and Image‐Guided TherapyMedical University of ViennaViennaAustria
| | - M. C. Diogo
- Department of Biomedical Imaging and Image‐Guided TherapyMedical University of ViennaViennaAustria
| | - P. C. Brugger
- Department of Anatomy and BiomechanicsKarl Landsteiner University of Health SciencesKremsAustria
| | - G. M. Gruber
- Department of Anatomy and BiomechanicsKarl Landsteiner University of Health SciencesKremsAustria
| | - M. Weber
- Department of Biomedical Imaging and Image‐Guided TherapyMedical University of ViennaViennaAustria
| | - S. Glatter
- Department of Pediatrics and Adolescent MedicineMedical University of ViennaViennaAustria
| | - R. Seidl
- Department of Pediatrics and Adolescent MedicineMedical University of ViennaViennaAustria
| | - D. Bettelheim
- Department of Obstetrics and Feto‐Maternal MedicineMedical University of ViennaViennaAustria
| | - D. Prayer
- Department of Biomedical Imaging and Image‐Guided TherapyMedical University of ViennaViennaAustria
| | - G. J. Kasprian
- Department of Biomedical Imaging and Image‐Guided TherapyMedical University of ViennaViennaAustria
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18
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Maděrková Tozzi M, Frisová V, Lubušký M. Impact of 3D ultrasound on fetal CNS examination. Ceska Gynekol 2019; 84:222-228. [PMID: 31324114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE An overview of current knowledge about the use of 3D ultrasound examinations for the examination of fetal CNS. DESIGN A review article. SETTING Department of Gynecology and Obstetrics, Faculty of Medicine and Dentistry, Palacký University and Faculty Hospital Olomouc. METHODS Literary sources related to the subject were used, especially articles indexed by Pubmed-Medline. CONCLUSION 3D ultrasound is currently used for examination of fetal CNS structures that can be only very difficult displayed by conventional 2D ultrasound. The best for technique for visualisation of midline fetal CNS structures, respectively corpus callosum cerebellar vermis, appears to be 3D volume acquisition in a sagittal plane through the sagittal suture or large fontanel with further post-processing in multiplanar mode, OVIX (Samsung), TUI (GE Healthcare) etc.
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19
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Dovjak GO, Brugger PC, Gruber GM, Song JW, Weber M, Langs G, Bettelheim D, Prayer D, Kasprian G. Prenatal assessment of cerebellar vermian lobulation: fetal MRI with 3-Tesla postmortem validation. Ultrasound Obstet Gynecol 2018; 52:623-630. [PMID: 28782259 DOI: 10.1002/uog.18826] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 07/13/2017] [Accepted: 07/17/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To optimize the imaging assessment of fetal hindbrain malformations, this observational magnetic resonance imaging (MRI) study aimed to assess whether fetal vermian lobulation can be quantified accurately and whether the relative growth of vermian lobules is uniform. METHODS This retrospective study included singleton fetuses which underwent T2-weighted MRI in vivo with a 1.5-Tesla (T) scanner or within 24 h postmortem with a 3-T scanner between January 2007 and November 2016 at the Medical University of Vienna. We included only those showing normal structural brain development on ultrasound and MRI and which had image quality appropriate for quantitative analysis, i.e. good image quality and a precise midsagittal slice. Fetal brains were segmented and, for all discernible vermian lobules, we determined the mean relative area contribution (MRAC, the proportion of the lobule relative to the total vermian area, in terms of number of voxels). Inter- and intrarater measurement variability of a representative selection (21 cases) was determined by intraclass correlation coefficient (ICC) for voxel-based differences. A linear regression model was used to assess the correlation between the relative size of each vermian lobule (i.e. MRAC) and gestational age. RESULTS A total of 78 fetuses scanned in vivo aged 18-32 gestational weeks and seven fetuses scanned postmortem aged 16-30 weeks had a precise midsagittal slice and image quality sufficient for quantitative analysis. After 22 weeks of gestation, seven of the nine known vermian lobules could be discriminated reliably. The MRAC showed a mean ± SD difference of only 2.89 ± 3.01% between in-vivo and postmortem measurements. The ICC of voxel-based interrater differences was mean ± SD, 0.91 ± 0.05 and the intrarater ICC was 0.95 ± 0.03. Growth of cerebellar lobules was non-uniform: the MRAC of culmen and DFT (declive + folium + tuber) increased with gestational age, whereas that of lingula, centralis, pyramis and nodulus decreased. The growth of the uvula showed no significant correlation with gestational age. CONCLUSIONS Fetal vermian lobulation can be assessed accurately and reliably after 22 weeks on precise midsagittal sequences with 1.5-T T2-weighted MRI. Fetal vermian lobules show non-uniform growth, with expansion of DFT and culmen at the expense of the other vermian lobules. Evaluation and elucidation of vermian lobulation in normal fetuses should enable better characterization of fetuses with hindbrain malformations. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- G O Dovjak
- Department of Biomedical Imaging and Image Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - P C Brugger
- Center for Anatomy and Cell Biology, Department of Anatomy, Medical University of Vienna, Vienna, Austria
| | - G M Gruber
- Center for Anatomy and Cell Biology, Department of Anatomy, Medical University of Vienna, Vienna, Austria
| | - J W Song
- Department of Radiology and Biomedical Imaging, Yale New Haven Hospital, New Haven, CT, USA
| | - M Weber
- Department of Biomedical Imaging and Image Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - G Langs
- Department of Biomedical Imaging and Image Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - D Bettelheim
- Department of Obstetrics and Fetomaternal Medicine, Medical University of Vienna, Vienna, Austria
| | - D Prayer
- Department of Biomedical Imaging and Image Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - G Kasprian
- Department of Biomedical Imaging and Image Guided Therapy, Medical University of Vienna, Vienna, Austria
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20
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Hashimoto M, Yamanaka A, Kato S, Tanifuji M, Kobayashi K, Yaginuma H. Anatomical Evidence for a Direct Projection from Purkinje Cells in the Mouse Cerebellar Vermis to Medial Parabrachial Nucleus. Front Neural Circuits 2018; 12:6. [PMID: 29467628 PMCID: PMC5808303 DOI: 10.3389/fncir.2018.00006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 01/12/2018] [Indexed: 11/28/2022] Open
Abstract
Cerebellar malformations cause changes to the sleep-wake cycle, resulting in sleep disturbance. However, it is unclear how the cerebellum contributes to the sleep-wake cycle. To examine the neural connections between the cerebellum and the nuclei involved in the sleep-wake cycle, we investigated the axonal projections of Purkinje cells in the mouse posterior vermis by using an adeno-associated virus (AAV) vector (serotype rh10) as an anterograde tracer. When an AAV vector expressing humanized renilla green fluorescent protein was injected into the cerebellar lobule IX, hrGFP and synaptophysin double-positive axonal terminals were observed in the region of medial parabrachial nucleus (MPB). The MPB is involved in the phase transition from rapid eye movement (REM) sleep to Non-REM sleep and vice versa, and the cardiovascular and respiratory responses. The hrGFP-positive axons from lobule IX went through the ventral spinocerebellar tract and finally reached the MPB. By contrast, when the AAV vector was injected into cerebellar lobule VI, no hrGFP-positive axons were observed in the MPB. To examine neurons projecting to the MPB, we unilaterally injected Fast Blue and AAV vector (retrograde serotype, rAAV2-retro) as retrograde tracers into the MPB. The cerebellar Purkinje cells in lobules VIII–X on the ipsilateral side of the Fast Blue-injected MPB were retrogradely labeled by Fast Blue and AAV vector (retrograde serotype), but no retrograde-labeled Purkinje cells were observed in lobules VI–VII and the cerebellar hemispheres. These results indicated that Purkinje cells in lobules VIII–X directly project their axons to the ipsilateral MPB but not lobules VI–VII. The direct connection between lobules VIII–X and the MPB suggests that the cerebellum participates in the neural network controlling the sleep-wake cycle, and cardiovascular and respiratory responses, by modulating the physiological function of the MPB.
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Affiliation(s)
- Mitsuhiro Hashimoto
- Department of Neuroanatomy and Embryology, Fukushima Medical University Graduate School of Medicine, Fukushima, Japan.,Brain Interdisciplinary Research Division, Research Institute for Science and Technology, Tokyo University of Science, Noda-shi, Japan.,Department of Neuroscience II, Research Institute of Environmental Medicine, Nagoya University, Nagoya-shi, Japan.,Laboratory for Integrative Neural Systems, RIKEN Brain Science Institute, Saitama, Japan
| | - Akihiro Yamanaka
- Department of Neuroscience II, Research Institute of Environmental Medicine, Nagoya University, Nagoya-shi, Japan
| | - Shigeki Kato
- Department of Molecular Genetics, Institute of Biomedical Sciences, Fukushima Medical University Graduate School of Medicine, Fukushima, Japan
| | - Manabu Tanifuji
- Laboratory for Integrative Neural Systems, RIKEN Brain Science Institute, Saitama, Japan.,Department of Life Science and Medical Bio-Science, Faculty of Science and Engineering, Waseda University, Tokyo, Japan.,Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Japan
| | - Kazuto Kobayashi
- Department of Molecular Genetics, Institute of Biomedical Sciences, Fukushima Medical University Graduate School of Medicine, Fukushima, Japan
| | - Hiroyuki Yaginuma
- Department of Neuroanatomy and Embryology, Fukushima Medical University Graduate School of Medicine, Fukushima, Japan
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21
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Sreenivasan S, Sawant V, Ghoshal J. Post Mortem Diagnosis of Blake's Pouch Cyst: A Presentation of Distended Cyst at Necropsy. Fetal Pediatr Pathol 2018; 37:84-88. [PMID: 29336637 DOI: 10.1080/15513815.2017.1392664] [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] [Indexed: 10/18/2022]
Abstract
BACKGROUND Blake's pouch cyst forms from non-permeabilization of Blake's pouch. It is difficult to visualize at necropsy as the cyst ruptures easily into the 4th ventricle during dissection. CASE REPORT Based upon prenatal imaging, delicate dissection allowed post-mortem confirmation of the Blake's pouch cyst. CONCLUSIONS This highlights the importance of utilizing premortem imaging to help guide the postmortem dissection and documentation of a posterior fossa cyst.
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Affiliation(s)
- Srividya Sreenivasan
- a Department of Anatomy, DY Patil University School of Medicine , Nerul , Navi Mumbai , Maharashtra , India
| | - Vishnu Sawant
- a Department of Anatomy, DY Patil University School of Medicine , Nerul , Navi Mumbai , Maharashtra , India
| | - Joy Ghoshal
- a Department of Anatomy, DY Patil University School of Medicine , Nerul , Navi Mumbai , Maharashtra , India
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22
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Afshar P, Ashtari N, Jiao X, Rahimi-Balaei M, Zhang X, Yaganeh B, Del Bigio MR, Kong J, Marzban H. Overexpression of Human SOD1 Leads to Discrete Defects in the Cerebellar Architecture in the Mouse. Front Neuroanat 2017; 11:22. [PMID: 28424594 PMCID: PMC5372795 DOI: 10.3389/fnana.2017.00022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 03/07/2017] [Indexed: 12/11/2022] Open
Abstract
The human superoxide dismutase 1 (SOD1) gene is responsible for neutralizing supercharged oxygen radicals within the cell. Mutation in SOD1 gene causes amyotrophic lateral sclerosis (ALS). Recent studies have shown involvement of the cerebellum in ALS, although the cerebellar contribution in SOD1 transgenic mice remains unclear. Using immunohistopathology, we investigated the Purkinje cell phenotype in the vermis of the SOD1 transgenic mice cerebellum. Calbindin 1 (Calb1) and three well-known zone and stripe markers, zebrin II, HSP25, and PLCβ4 have been used to explore possible alteration in zone and stripe. Here we show that Calb1 expression is significantly reduced in a subset of the Purkinje cells that is almost aligned with the cerebellar zones and stripes pattern. The Purkinje cells of SOD1 transgenic mice display a pattern of Calb1 down-regulation, which seems to proceed to Purkinje cell degeneration as the mice age. The onset of Calb1 down-regulation in Purkinje cells begins from the central zone and continues into the nodular zone, however it has not been observed in the anterior and posterior zones. In a subgroup of SOD1 transgenic mice in which gait unsteadiness was apparent, down-regulation of Calb1 is seen in a subset of PLCβ4+ Purkinje cells in the anterior zone. These observations suggest that the Calb1- subset of Purkinje cells in the anterior zone, which receives somatosensory input, causes unsteady gait. Our data suggest that human SOD1 overexpression leads to Calb1 down-regulation in the zone and strip pattern and raise the question of whether SOD1 overexpression leads to Purkinje cells degeneration.
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Affiliation(s)
- Pegah Afshar
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada
| | - Niloufar Ashtari
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada
| | - Xiaodan Jiao
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada
| | - Maryam Rahimi-Balaei
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada
| | - Xiaosha Zhang
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada
| | - Behzad Yaganeh
- Program in Physiology and Experimental Medicine, Hospital for Sick Children and University of TorontoToronto, ON, Canada
| | - Marc R Del Bigio
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada.,Department of Pathology, Faculty of Medicine, University of ManitobaWinnipeg, MB, Canada
| | - Jiming Kong
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada
| | - Hassan Marzban
- Department of Human Anatomy and Cell Science, The Children's Hospital Foundation University of Manitoba, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of ManitobaWinnipeg, MB, Canada
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23
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Spinelli M, Sica C, Meglio LD, Bolla D, Raio L, Surbek D. Fetal Cerebellar Vermis Circumference Measured by 2-Dimensional Ultrasound Scan: Reference Range, Feasibility and Reproducibility. Ultrasound Int Open 2016; 2:E124-E128. [PMID: 27921094 DOI: 10.1055/s-0042-119952] [Citation(s) in RCA: 4] [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] [Indexed: 10/20/2022] Open
Abstract
Purpose: To provide 2-dimensional ultrasonographic (2D-US) normograms of cerebellar vermis biometry, as well as to evaluate the feasibility and the reproducibility of these measurements in clinical practice. Materials and Methods: A prospective cross-sectional study of 328 normal singleton pregnancies between 18 and 33 weeks of gestation. Measurements of the fetal cerebellar vermis circumference (VC) in the mid-sagittal plane were performed by both a senior and a junior operator using 2D-US. VC as a function of gestational age (GA) was expressed by regression equations. In 24 fetuses 3-dimensional (3D) reconstructed planes were obtained in order to allow comparisons with 2D-US measurements. The agreement between 2D and 3D measurements and the interobserver variability were assessed by interclass correlation coefficients (ICC). Results: Satisfactory vermis measurements could be obtained in 89.9% of cases. The VC (constant= - 12.21; slope=2.447; r=0.887, p<0.0001) correlated linearly with GA. A high degree of consistency was observed between 2D and 3D ultrasound measurements (ICC=0.846 95% CI 679-0.930) as well as between measurements obtained by different examiners (ICC=0.890 95% CI 989-0.945). Conclusion: 2-dimensional ultrasonographic measurements of cerebellar vermis throughout gestation in the mid-sagittal view seem to be feasible and reproducible enough to be potentially used in clinical practice. Such measurements may supply a tool for accurate identification of posterior fossa anomalies, providing the basis for proper counseling and management and of these conditions.
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Affiliation(s)
- M Spinelli
- Department of Clinical Research, Prenatal Medicine, Inselspital Bern Universitatsklinik fur Frauenheilkunde, Bern, Switzerland
| | - C Sica
- Obstetrics and Gynecology, Private Centre "Diagnostica ecografica e prenatale Aniello Di Meglio s.r.l.", Naples, Italy
| | - L D Meglio
- Obstetrics and Gynecology, Private Centre "Diagnostica ecografica e prenatale Aniello Di Meglio s.r.l.", Naples, Italy
| | - D Bolla
- OB/GYN, University of Bern, Bern, Switzerland
| | - L Raio
- OB/GYN, University of Bern, Bern, Switzerland
| | - D Surbek
- OB & GYN, Inselspital, Bern, Switzerland
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24
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Miyata K, Hori T, Yamakawa K, Takasu M, Hayakawa T, Shimomura Y, Iwata A, Okumura A, Nakura T, Jyoko M, Mori Y, Takahashi E, Hirato J. Medulloblastoma with epithelioid features in the cerebellar vermis. Pediatr Int 2016; 58:908-12. [PMID: 27452626 DOI: 10.1111/ped.12998] [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: 09/29/2015] [Revised: 03/20/2016] [Accepted: 03/24/2016] [Indexed: 11/28/2022]
Abstract
A 6-year-old girl was admitted with a mass lesion in the cerebellar vermis. She underwent subtotal tumor resection, and on immunohistopathology the tumor consisted of two different parts: typical medulloblastoma (MB) characteristics and atypical teratoid/rhabdoid tumor (AT/RT) features, despite positive integrase interactor 1 expression. The patient was diagnosed with MB with epithelioid features. Chemoradiation therapy was started because of tumor recurrence at the primary site and dissemination to the spinal cord, as determined on magnetic resonance imaging 2 weeks after surgery. The patient died due to tumor progression 13 months after initial diagnosis, although transient partial remission was achieved.
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Affiliation(s)
- Kenji Miyata
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan.
| | - Toshinori Hori
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Kiyoshi Yamakawa
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Michihiko Takasu
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | | | - Yasuto Shimomura
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Atsuko Iwata
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Takahiro Nakura
- Department of Neurosurgery, Aichi Medical University, Nagakute, Japan
| | - Masahiro Jyoko
- Department of Neurosurgery, Aichi Medical University, Nagakute, Japan
| | - Yoshimasa Mori
- Department of Radiology, Aichi Medical University, Nagakute, Japan
| | - Emiko Takahashi
- Department of Pathology, Aichi Medical University, Nagakute, Japan
| | - Junko Hirato
- Clinical Department of Pathology, Gunma University Hospital, Maebashi, Japan
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25
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McEntagart M, Williamson KA, Rainger JK, Wheeler A, Seawright A, De Baere E, Verdin H, Bergendahl LT, Quigley A, Rainger J, Dixit A, Sarkar A, López Laso E, Sanchez-Carpintero R, Barrio J, Bitoun P, Prescott T, Riise R, McKee S, Cook J, McKie L, Ceulemans B, Meire F, Temple IK, Prieur F, Williams J, Clouston P, Németh AH, Banka S, Bengani H, Handley M, Freyer E, Ross A, van Heyningen V, Marsh JA, Elmslie F, FitzPatrick DR. A Restricted Repertoire of De Novo Mutations in ITPR1 Cause Gillespie Syndrome with Evidence for Dominant-Negative Effect. Am J Hum Genet 2016; 98:981-992. [PMID: 27108798 PMCID: PMC4863663 DOI: 10.1016/j.ajhg.2016.03.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 03/16/2016] [Indexed: 12/19/2022] Open
Abstract
Gillespie syndrome (GS) is characterized by bilateral iris hypoplasia, congenital hypotonia, non-progressive ataxia, and progressive cerebellar atrophy. Trio-based exome sequencing identified de novo mutations in ITPR1 in three unrelated individuals with GS recruited to the Deciphering Developmental Disorders study. Whole-exome or targeted sequence analysis identified plausible disease-causing ITPR1 mutations in 10/10 additional GS-affected individuals. These ultra-rare protein-altering variants affected only three residues in ITPR1: Glu2094 missense (one de novo, one co-segregating), Gly2539 missense (five de novo, one inheritance uncertain), and Lys2596 in-frame deletion (four de novo). No clinical or radiological differences were evident between individuals with different mutations. ITPR1 encodes an inositol 1,4,5-triphosphate-responsive calcium channel. The homo-tetrameric structure has been solved by cryoelectron microscopy. Using estimations of the degree of structural change induced by known recessive- and dominant-negative mutations in other disease-associated multimeric channels, we developed a generalizable computational approach to indicate the likely mutational mechanism. This analysis supports a dominant-negative mechanism for GS variants in ITPR1. In GS-derived lymphoblastoid cell lines (LCLs), the proportion of ITPR1-positive cells using immunofluorescence was significantly higher in mutant than control LCLs, consistent with an abnormality of nuclear calcium signaling feedback control. Super-resolution imaging supports the existence of an ITPR1-lined nucleoplasmic reticulum. Mice with Itpr1 heterozygous null mutations showed no major iris defects. Purkinje cells of the cerebellum appear to be the most sensitive to impaired ITPR1 function in humans. Iris hypoplasia is likely to result from either complete loss of ITPR1 activity or structure-specific disruption of multimeric interactions.
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Affiliation(s)
- Meriel McEntagart
- Medical Genetics, St George's University Hospitals NHS Foundation Trust, Cranmer Terrace, London SW17 0RE, UK
| | - Kathleen A Williamson
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Jacqueline K Rainger
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Ann Wheeler
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Anne Seawright
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Elfride De Baere
- Center for Medical Genetics Ghent (CMGG), Ghent University Hospital, Medical Research Building (MRB), 1st Floor, Room 110.029, De Pintelaan 185, 9000 Ghent, Belgium
| | - Hannah Verdin
- Center for Medical Genetics Ghent (CMGG), Ghent University Hospital, Medical Research Building (MRB), 1st Floor, Room 110.029, De Pintelaan 185, 9000 Ghent, Belgium
| | - L Therese Bergendahl
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Alan Quigley
- Department of Radiology, Royal Hospital for Sick Children, Edinburgh EH9 1LF, UK
| | - Joe Rainger
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK; Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK
| | - Abhijit Dixit
- Clinical Genetics, Nottingham City Hospital, Hucknall Road, Nottingham NG5 1PB, UK
| | - Ajoy Sarkar
- Clinical Genetics, Nottingham City Hospital, Hucknall Road, Nottingham NG5 1PB, UK
| | - Eduardo López Laso
- Pediatric Neurology Unit, Department of Pediatrics, Reina Sofia University Hospital, Av. Menéndez Pidal s/n, 14004 Córdoba, Spain
| | - Rocio Sanchez-Carpintero
- Paediatric Neurology Unit, Department of Paediatrics, Clinica Universidad de Navarra, 31008 Pamplona, Spain
| | - Jesus Barrio
- Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain
| | - Pierre Bitoun
- Service de pédiatrie, CHU Paris Seine-Saint-Denis - Hôpital Jean Verdier Avenue du 14 juillet, 93140 Bondy, France
| | - Trine Prescott
- Department of Medical Genetics, Oslo University Hospital, 0424 Oslo, Norway
| | - Ruth Riise
- Department of Ophthalmology, Innland Hospital, 2418 Elverum, Norway
| | - Shane McKee
- Northern Ireland Regional Genetics Service, Belfast City Hospital, Belfast BT9 7AB, UK
| | - Jackie Cook
- Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Western Bank, Sheffield S10 2TH, UK
| | - Lisa McKie
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Berten Ceulemans
- Department of Neurology-Pediatric Neurology, University and University Hospital Antwerp, Antwerp 2650, Belgium
| | - Françoise Meire
- Department of Ophthalmology, Queen Fabiola Children's University Hospital, 1020 Brussels, Belgium
| | - I Karen Temple
- Human Development and Health Academic Unit, University Hospital Southampton, Tremona Road, University of Southampton, Southampton SO16 6YD, UK
| | - Fabienne Prieur
- Service Génétique, Plateau de biologie, CHU Saint Etienne, 42055 Saint Etienne cedex 2, France
| | - Jonathan Williams
- Oxford University Hospitals NHS Trust, Oxford Medical Genetics Laboratories, The Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK
| | - Penny Clouston
- Oxford University Hospitals NHS Trust, Oxford Medical Genetics Laboratories, The Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK
| | - Andrea H Németh
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford OX3 7LJ, UK
| | - Siddharth Banka
- Manchester Centre for Genomic Medicine, University of Manchester, St. Mary's Hospital, Oxford Road, Manchester M13 9WL, UK
| | - Hemant Bengani
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Mark Handley
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Elisabeth Freyer
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Allyson Ross
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Veronica van Heyningen
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Joseph A Marsh
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Frances Elmslie
- Medical Genetics, St George's University Hospitals NHS Foundation Trust, Cranmer Terrace, London SW17 0RE, UK
| | - David R FitzPatrick
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK.
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26
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Abstract
The cerebellum contains the largest number of neurons and synapses of any structure in the central nervous system. The concept that the cerebellum is solely involved in fine motor function has become outdated; substantial evidence has accumulated linking the cerebellum with higher cognitive functions including language. Cerebellar deficits have been implicated in autism for more than two decades. The computational power of the cerebellum is essential for many, if not most of the processes that are perturbed in autism including language and communication, social interactions, stereotyped behavior, motor activity and motor coordination, and higher cognitive functions. The link between autism and cerebellar dysfunction should not be surprising to those who study its cellular, physiological, and functional properties. Postmortem studies have revealed neuropathological abnormalities in cerebellar cellular architecture while studies on mouse lines with cell loss or mutations in single genes restricted to cerebellar Purkinje cells have also strongly implicated this brain structure in contributing to the autistic phenotype. This connection has been further substantiated by studies investigating brain damage in humans restricted to the cerebellum. In this review, we summarize advances in research on idiopathic autism and three genetic forms of autism that highlight the key roles that the cerebellum plays in this spectrum of neurodevelopmental disorders.
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Affiliation(s)
- David R Hampson
- Leslie Dan Faculty of Pharmacy, Department of Pharmaceutical Sciences, University of Toronto Toronto, ON, Canada
| | - Gene J Blatt
- Program in Neuroscience, Hussman Institute for Autism Baltimore, MD, USA
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Alvarez TL, Jaswal R, Gohel S, Biswal BB. Functional activity within the frontal eye fields, posterior parietal cortex, and cerebellar vermis significantly correlates to symmetrical vergence peak velocity: an ROI-based, fMRI study of vergence training. Front Integr Neurosci 2014; 8:50. [PMID: 24987340 PMCID: PMC4060559 DOI: 10.3389/fnint.2014.00050] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 05/27/2014] [Indexed: 11/13/2022] Open
Abstract
Convergence insufficiency (CI) is a prevalent binocular vision disorder with symptoms that include double/blurred vision, eyestrain, and headaches when engaged in reading or other near work. Randomized clinical trials support that Office-Based Vergence and Accommodative Therapy with home reinforcement leads to a sustained reduction in patient symptoms. However, the underlying neurophysiological basis for treatment is unknown. Functional activity and vergence eye movements were quantified from seven binocularly normal controls (BNC) and four CI patients before and after 18 h of vergence training. An fMRI conventional block design of sustained fixation vs. vergence eye movements stimulated activity in the frontal eye fields (FEF), the posterior parietal cortex (PPC), and the cerebellar vermis (CV). Comparing the CI patients' baseline measurements to the post-vergence training data sets with a paired t-test revealed the following: (1) the percent change in the BOLD signal in the FEF, PPC, and CV significantly increased (p < 0.02), (2) the peak velocity from 4° symmetrical convergence step responses increased (p < 0.01) and (3) patient symptoms assessed using the CI Symptom Survey (CISS) improved (p < 0.05). CI patient measurements after vergence training were more similar to levels observed within BNC. A regression analysis revealed the peak velocity from BNC and CI subjects before and after vergence training was significantly correlated to the percent BOLD signal change within the FEF, PPC, and CV (r = 0.6; p < 0.05). Results have clinical implications for understanding the behavioral and neurophysiological changes after vergence training in patients with CI, which may lead to the sustained reduction in visual symptoms.
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Affiliation(s)
- Tara L Alvarez
- Department of Biomedical Engineering, New Jersey Institute of Technology Newark, NJ, USA
| | - Raj Jaswal
- Department of Biomedical Engineering, New Jersey Institute of Technology Newark, NJ, USA
| | - Suril Gohel
- Department of Biomedical Engineering, New Jersey Institute of Technology Newark, NJ, USA
| | - Bharat B Biswal
- Department of Biomedical Engineering, New Jersey Institute of Technology Newark, NJ, USA
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28
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Abstract
While functional magnetic resonance imaging (fMRI) has identified which regions of interests (ROIs) are functionally active during a vergence movement (inward or outward eye rotation), task-modulated coactivation between ROIs is less understood. This study tested the following hypotheses: (1) significant task-modulated coactivation would be observed between the frontal eye fields (FEFs), the posterior parietal cortex (PPC), and the cerebellar vermis (CV); (2) significantly more functional activity and task-modulated coactivation would be observed in binocularly normal controls (BNCs) compared with convergence insufficiency (CI) subjects; and (3) after vergence training, the functional activity and task-modulated coactivation would increase in CIs compared with their baseline measurements. A block design of sustained fixation versus vergence eye movements stimulated activity in the FEFs, PPC, and CV. fMRI data from four CI subjects before and after vergence training were compared with seven BNCs. Functional activity was assessed using the blood oxygenation level dependent (BOLD) percent signal change. Task-modulated coactivation was assessed using an ROI-based task-modulated coactivation analysis that revealed significant correlation between the FEF, PPC, and CV ROIs. Prior to vergence training, the CIs had a reduced BOLD percent signal change compared with BNCs for the CV (p<0.05), FEFs, and PPC (p<0.01). The BOLD percent signal change increased within the CV, FEF, and PPC ROIs (p<0.001) as did the task-modulated coactivation between the FEFs and CV as well as the PPC and CV (p<0.05) when comparing the CI pre- and post-training datasets. Results from the Convergence Insufficiency Symptom Survey were correlated to the percent BOLD signal change from the FEFs and CV (p<0.05).
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Affiliation(s)
- Rajbir Jaswal
- Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey
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29
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Quarello E, Molho M, Garel C, Couture A, Legac MP, Moutard ML, Bault JP, Fallet-Bianco C, Guibaud L. Prenatal abnormal features of the fourth ventricle in Joubert syndrome and related disorders. Ultrasound Obstet Gynecol 2014; 43:227-232. [PMID: 23868831 DOI: 10.1002/uog.12567] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 06/27/2013] [Accepted: 07/11/2013] [Indexed: 06/02/2023]
Abstract
Joubert syndrome and related disorders (JSRD) are characterized by absence or underdevelopment of the cerebellar vermis and a malformed brainstem. This family of disorders is a member of an emerging class of diseases called ciliopathies. We describe the abnormal features of the brain, particularly the fourth ventricle, in seven fetuses affected by JSRD. In three cases abnormality of the fourth ventricle was isolated and in four cases there were associated malformations. The molar tooth sign (MTS) was always present and visible on two-dimensional ultrasound and, when performed, on three-dimensional ultrasound and magnetic resonance imaging. The fourth ventricle was always abnormal, in both axial and sagittal views, presenting pathognomonic deformities. It is important to identify JSRD, preferably prenatally or at least postnatally, due to its high risk of recurrence of about 25%. A detailed prenatal assessment of the fourth ventricle in several views may help to achieve this goal.
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Affiliation(s)
- E Quarello
- Unité d'Échographies Obstétricales, Service de Gynécologie Obstétrique, Pôle Parents Enfants, Hôpital Saint-Joseph, Marseille, France; Institut de Médecine de la Reproduction, Marseille, France
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30
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Cohen OS, Varlinskaya EI, Wilson CA, Glatt SJ, Mooney SM. Acute prenatal exposure to a moderate dose of valproic acid increases social behavior and alters gene expression in rats. Int J Dev Neurosci 2013; 31:740-50. [PMID: 24055786 DOI: 10.1016/j.ijdevneu.2013.09.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 09/10/2013] [Accepted: 09/10/2013] [Indexed: 10/26/2022] Open
Abstract
Prenatal exposure to moderate doses of valproic acid (VPA) produces brainstem abnormalities, while higher doses of this teratogen elicit social deficits in the rat. In this pilot study, we examined effects of prenatal exposure to a moderate dose of VPA on behavior and on transcriptomic expression in three brain regions that mediate social behavior. Pregnant Long Evans rats were injected with 350 mg/kg VPA or saline on gestational day 13. A modified social interaction test was used to assess social behavior and social preference/avoidance during early and late adolescence and in adulthood. VPA-exposed animals demonstrated more social investigation and play fighting than control animals. Social investigation, play fighting, and contact behavior also differed as a function of age; the frequency of these behaviors increased in late adolescence. Social preference and locomotor activity under social circumstances were unaffected by treatment or age. Thus, a moderate prenatal dose of VPA produces behavioral alterations that are substantially different from the outcomes that occur following exposure to a higher dose. At adulthood, VPA-exposed subjects exhibited transcriptomic abnormalities in three brain regions: anterior amygdala, cerebellar vermis, and orbitofrontal cortex. A common feature among the proteins encoded by the dysregulated genes was their ability to be modulated by acetylation. Analysis of the expression of individual exons also revealed that genes involved in post-translational modification and epigenetic regulation had particular isoforms that were ubiquitously dysregulated across brain regions. The vulnerability of these genes to the epigenetic effects of VPA may highlight potential mechanisms by which prenatal VPA exposure alters the development of social behavior.
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Affiliation(s)
- Ori S Cohen
- Psychiatric Genetic Epidemiology & Neurobiology Laboratory (PsychGENe Lab), Department of Psychiatry and Behavioral Sciences, SUNY Upstate Medical University, Syracuse, NY 13210, United States
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31
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Albert MV, Catz N, Thier P, Kording K. Saccadic gain adaptation is predicted by the statistics of natural fluctuations in oculomotor function. Front Comput Neurosci 2012; 6:96. [PMID: 23230397 PMCID: PMC3515854 DOI: 10.3389/fncom.2012.00096] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 11/20/2012] [Indexed: 11/13/2022] Open
Abstract
Due to multiple factors such as fatigue, muscle strengthening, and neural plasticity, the responsiveness of the motor apparatus to neural commands changes over time. To enable precise movements the nervous system must adapt to compensate for these changes. Recent models of motor adaptation derive from assumptions about the way the motor apparatus changes. Characterizing these changes is difficult because motor adaptation happens at the same time, masking most of the effects of ongoing changes. Here, we analyze eye movements of monkeys with lesions to the posterior cerebellar vermis that impair adaptation. Their fluctuations better reveal the underlying changes of the motor system over time. When these measured, unadapted changes are used to derive optimal motor adaptation rules the prediction precision significantly improves. Among three models that similarly fit single-day adaptation results, the model that also matches the temporal correlations of the non-adapting saccades most accurately predicts multiple day adaptation. Saccadic gain adaptation is well matched to the natural statistics of fluctuations of the oculomotor plant.
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Affiliation(s)
- Mark V Albert
- Sensory Motor Performance Program, Rehabilitation Institute of Chicago Chicago, IL, USA ; Department of Physical Medicine and Rehabilitation, Northwestern University Chicago, IL, USA
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32
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Fedoul B, Souirti Z. Cerebellar ganglioglioma. Pan Afr Med J 2012; 12:12. [PMID: 22826736 PMCID: PMC3396858] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Accepted: 04/14/2010] [Indexed: 11/05/2022] Open
Abstract
The cerebellar location of ganglioglioma (GG) is exceptional. We report one case of a 27-year-old man who underwent an intracranial hypertension syndrome and a static cerebellar syndrome. Brain magnetic resonance images revealed a cyst image in the vermis. Histological study after surgical removal, revealed a ganglioglioma tumor. Through this case and literature review, the authors discuss some epidemiological, histological, clinical, radiological and management features of this very rare tumor.
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Affiliation(s)
- Badr Fedoul
- Hassan II University hospital, Fez, Morocco,Corresponding author: Fedoul Badr, Neurology Department, Hassan II University hospital, Fez, Morocco
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33
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Verhoeven WM, Egger JI, Willemsen MH, de Leijer GJ, Kleefstra T. Phelan-McDermid syndrome in two adult brothers: atypical bipolar disorder as its psychopathological phenotype? Neuropsychiatr Dis Treat 2012; 8:175-9. [PMID: 22570549 PMCID: PMC3346055 DOI: 10.2147/ndt.s30506] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [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] [Indexed: 11/23/2022] Open
Abstract
The 22q13.3 deletion, or Phelan-McDermid syndrome, is characterized by global intellectual disability, generalized hypotonia, severely delayed or absent speech associated with features of autism spectrum disorder, and minor dysmorphisms. Its behavioral phenotype comprises sleep disturbances, communication deficits, and motor perseverations. Data on psychological dysfunctions are so far not available. Previous studies have suggested that the loss of one copy of the gene SH3 and multiple ankyrin repeat domains 3 (SHANK3) is related to the neurobehavioral phenotype. Additional genes proximal to SHANK3 are also likely to play a role in the phenotype of patients with larger deletions. The present paper describes two adult brothers with an identical 2.15 Mb 22qter (22q13.32q13.33) deletion, of whom the youngest was referred for evaluation of recurrent mood changes. In both patients, magnetic resonance imaging of the brain showed hypoplasia of the vermis cerebelli. Extensive clinical examinations led to a final diagnosis of atypical bipolar disorder, of which symptoms fully remitted during treatment with a mood stabilizer. In the older brother, a similar psychopathological picture appeared to be present, although less severe and with a later onset. It is concluded that the behavioral phenotype of the 22q13.3 deletion syndrome comprises absent or delayed speech and perseverations with associated autistic-like features, whereas its psychopathological phenotype comprises an atypical bipolar disorder. The latter may have implications for the treatment regime of the syndrome-related behavioral disturbances.
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Affiliation(s)
- Willem Ma Verhoeven
- Vincent van Gogh Institute for Psychiatry, Centre of Excellence for Neuropsychiatry, Venray
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34
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Singh MK, Spielman D, Libby A, Adams E, Acquaye T, Howe M, Kelley R, Reiss A, Chang KD. Neurochemical deficits in the cerebellar vermis in child offspring of parents with bipolar disorder. Bipolar Disord 2011; 13:189-97. [PMID: 21443573 PMCID: PMC3066452 DOI: 10.1111/j.1399-5618.2011.00902.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [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] [Indexed: 01/14/2023]
Abstract
OBJECTIVES We aimed to compare concentrations of N-acetyl aspartate, myo-inositol, and other neurometabolites in the cerebellar vermis of offspring at risk for bipolar disorder (BD) and healthy controls to examine whether changes in these neuronal metabolite concentrations occur in at-risk offspring prior to the onset of mania. METHODS A total of 22 children and adolescents aged 9-17 years with a familial risk for bipolar I or II disorder [at-risk offspring with non-bipolar I disorder mood symptoms (AR)], and 25 healthy controls (HC) were examined using proton magnetic resonance spectroscopy at 3T to study metabolite concentrations in an 8-cc voxel in the cerebellar vermis. RESULTS Decreased myo-inositol and choline concentrations in the vermis were seen in the AR group compared to HC (p<0.01). CONCLUSIONS Decreased cellular metabolism and interference with second messenger pathways may be present in the cerebellar vermis in youth at risk for BD as evident by decreased myo-inositol and choline concentrations in this region. These results may be limited by a cross-sectional design, co-occurring diagnoses, and medication exposure. Longitudinal studies are necessary to determine whether early neurochemical changes can predict the development of mania. Improved methods for identifying children with certain neurochemical vulnerabilities may inform preventive and early intervention strategies prior to the onset of mania.
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Affiliation(s)
- Manpreet K Singh
- Pediatric Bipolar Disorders Research Program, Division of Child and Adolescent Psychiatry, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305, USA.
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35
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Womer FY, Wang F, Chepenik LG, Kalmar JH, Spencer L, Edmiston E, Pittman BP, Constable RT, Papademetris X, Blumberg HP. Sexually dimorphic features of vermis morphology in bipolar disorder. Bipolar Disord 2009; 11:753-8. [PMID: 19839998 PMCID: PMC2844245 DOI: 10.1111/j.1399-5618.2009.00745.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [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] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The cerebellar vermis is increasingly implicated in bipolar disorder (BD). In this study, we investigated vermis morphology in BD using a quantitative volumetric analysis. METHODS Volumes for total vermis and vermis subregions V1 (lobules I-V), V2 (lobules VI-VII), and V3 (lobules VIII-X) were calculated using high-resolution structural magnetic resonance imaging obtained from 44 individuals with BD (25 females and 19 males) and 43 healthy comparison (HC) subjects (26 females and 17 males). Total vermis volumes were compared between the BD and HC groups. Potential effects of vermis subregions and clinical features were explored. RESULTS Total vermis volumes were significantly larger in the BD group than in the HC group (p = 0.02). There was a significant group-by-sex interaction (p = 0.02). Total vermis volumes were significantly larger in males with BD than HC males (p = 0.004); vermis volumes did not differ significantly between females with and without BD (p = 0.95). Subregion analyses showed a trend-level interaction between diagnosis and subregion (p = 0.07) in which subregion V1 volumes were significantly larger in BD participants (p = 0.001), with differences primarily driven by males (p = 0.001). CONCLUSIONS Our findings demonstrate increases in cerebellar vermis volumes in males with BD. These findings support the presence of structural alterations in the cerebellar vermis in BD and furthermore the influence of sex on such changes.
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Affiliation(s)
- Fay Y. Womer
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT
| | - Fei Wang
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT,Department of Psychiatry, Veterans Affairs Connecticut Healthcare System, West Haven, CT
| | - Lara G. Chepenik
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT,Department of Psychiatry, Veterans Affairs Connecticut Healthcare System, West Haven, CT
| | - Jessica H. Kalmar
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT,Department of Psychiatry, Veterans Affairs Connecticut Healthcare System, West Haven, CT
| | - Linda Spencer
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT,Department of Psychiatry, Veterans Affairs Connecticut Healthcare System, West Haven, CT
| | - Erin Edmiston
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT,Department of Psychiatry, Veterans Affairs Connecticut Healthcare System, West Haven, CT
| | - Brian P. Pittman
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT
| | - R. Todd Constable
- Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, CT
| | - Xenophon Papademetris
- Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, CT
| | - Hilary P. Blumberg
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT,Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, CT,Department of Psychiatry, Veterans Affairs Connecticut Healthcare System, West Haven, CT
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