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https://www.readbyqxmd.com/read/29791867/longitudinal-assessment-of-chemotherapy-induced-changes-in-brain-and-cognitive-functioning-a-systematic-review
#1
REVIEW
Mingmei Li, Karen Caeyenberghs
In addition to the burden of a life-threatening diagnosis, cancer patients are struggling with adverse side-effects from cancer treatment. Chemotherapy has been linked to an array of cognitive impairments and alterations in brain structure and function ("chemobrain"). In this review, we summarized the existing evidence that evaluate the changes in cognitive functioning and brain with chemotherapy, as assessed using structural and functional MRI-based techniques in a longitudinal design. This review followed the latest PRISMA guidelines using Embase, Medline, PsychINFO, Scopus, and Web of Science databases with date restrictions from 2012-2017...
May 20, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29789951/sleep-in-children-with-congenital-malformations-of-the-central-nervous-system
#2
REVIEW
Jacqueline F Yates, Matthew M Troester, David G Ingram
PURPOSE OF REVIEW: Congenital malformations of the central nervous system may be seen in isolation or in association with syndromes that have multiorgan involvement. Among the potential health challenges these children may face, sleep concerns are frequent and may include chronic insomnia, sleep-related breathing disorders, and circadian rhythm disorders. RECENT FINDINGS: In this review, we describe recent research into sleep disorders affecting children with congenital malformations of the CNS including visual impairment, septo-optic dysplasia, agenesis of the corpus callosum, Aicardi syndrome, Chiari malformation, spina bifida, achondroplasia, Joubert syndrome, fetal alcohol spectrum disorders, and congenital Zika syndrome...
May 23, 2018: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29786476/orthopedic-injured-versus-uninjured-comparison-groups-for-neuroimaging-research-in-mild-traumatic-brain-injury
#3
Elisabeth A Wilde, Ashley L Ware, Xiaoqi Li, Trevor C Wu, Stephen R McCauley, Amanda Barnes, Mary Newsome, Brian Biekman, Jill V Hunter, Zili Chu, Harvey Levin
To address controversy surrounding the most appropriate comparison group for mild traumatic brain injury (mTBI) research, mTBI patients aged 12-30 years were compared to an extracranial orthopedic injury (OI) patient group and an uninjured, typically-developing (TD) participant group with comparable demographic backgrounds. Injured participants underwent subacute (within 96 hours) and late (3 months) diffusion tensor imaging (DTI); TD controls underwent DTI once. Group differences in fractional anisotropy (FA) and mean diffusivity (MD) of commonly studied white matter tracts were assessed...
May 22, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29782918/bdnf-haploinsufficiency-exerts-a-transient-and-regionally-different-influence-upon-oligodendroglial-lineage-cells-during-postnatal-development
#4
Madeline Nicholson, Rhiannon J Wood, Jessica L Fletcher, Maarten van den Buuse, Simon S Murray, Junhua Xiao
The Brain-Derived Neurotrophic Factor (BDNF) plays important roles in promoting myelination in the developing central nervous system (CNS), however the influence it exerts on oligodendrocyte development in vivo remain unclear. As BDNF knockout mice die in the perinatal period, we undertook a systematic developmental analysis of oligodendroglial lineage cells within multiple CNS regions of BDNF heterozygous (HET) mice. Our data identify that BDNF heterozygosity results in transient reductions in oligodendroglial lineage cell density and progression that are largely restricted to the optic nerve, whereas the corpus callosum, cerebral cortex, basal forebrain and spinal cord white matter tracts are unaffected...
May 18, 2018: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29779901/white-matter-disruptions-in-patients-with-bipolar-disorder
#5
Lucija Abramovic, Marco P M Boks, Annabel Vreeker, Sanne Verkooijen, Annet H van Bergen, Roel A Ophoff, René S Kahn, Neeltje E M van Haren
Bipolar disorder (BD) patients show aberrant white matter microstructure compared to healthy controls but little is known about the relation with clinical characteristics. We therefore investigated the relation of white matter microstructure with the main pharmacological treatments as well its relation with IQ. Patients with BD (N = 257) and controls (N = 167) underwent diffusion tensor imaging (DTI) and comprehensive clinically assessments including IQ estimates. DTI images were analyzed using tract-based spatial statistics...
May 17, 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29779877/developmental-upregulation-of-ephrin-b1-silences-sema3c-neuropilin-1-signaling-during-post-crossing-navigation-of-corpus-callosum-axons
#6
Erik Mire, Mélanie Hocine, Elsa Bazellières, Thomas Jungas, Alice Davy, Sophie Chauvet, Fanny Mann
The corpus callosum is the largest commissure in the brain, whose main function is to ensure communication between homotopic regions of the cerebral cortex. During fetal development, corpus callosum axons (CCAs) grow toward and across the brain midline and then away on the contralateral hemisphere to their targets. A particular feature of this circuit, which raises a key developmental question, is that the outgoing trajectory of post-crossing CCAs is mirror-symmetric with the incoming trajectory of pre-crossing axons...
May 10, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29779410/personalized-charts-for-the-fetal-corpus-callosum-length
#7
Abraham Tsur, Boaz Weisz, Orgad Rosenblat, Daniel Shai, Estela Derazne, David K Stevenson, Reuven Achiron, Eldad Katorza
OBJECTIVE: To personally customize the antenatal ultrasound charts for the fetal corpus callosum (CC) length. METHODS: A retrospective analysis of fetal neuro-sonography scans. Cases were grouped as normal neuro-sonographic evaluation (normal) or as high risk and suspected brain anomaly (abnormal). The normal group was subcategorized according to Cignini's CC length charts. Data of fetuses with a CC length between the 5th-95th percentile served for creating new charts, describing the ratio of the CC length to the major biometric parameters as a function of gestational age (GA)...
May 20, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29778546/imaging-genetics-paradigms-in-depression-research-systematic-review-and-meta-analysis
#8
REVIEW
Lícia P Pereira, Cristiano A Köhler, Brendon Stubbs, Kamilla W Miskowiak, Gerwyn Morris, Bárbara P de Freitas, Trevor Thompson, Brisa S Fernandes, André R Brunoni, Michael Maes, Diego A Pizzagalli, André F Carvalho
Imaging genetics studies involving participants with major depressive disorder (MDD) have expanded. Nevertheless, findings have been inconsistent. Thus, we conducted a systematic review and meta-analysis of imaging genetics studies that enrolled MDD participants across major databases through June 30th, 2017. Sixty-five studies met eligibility criteria (N = 4034 MDD participants and 3293 controls), and there was substantial between-study variability in the methodological quality of included studies. However, few replicated findings emerged from this literature with only 22 studies providing data for meta-analyses (882 participants with MDD and 616 controls)...
May 17, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29777576/glioblastoma-recurrence-correlates-with-nlgn3-levels
#9
Rui Liu, Xing-Ping Qin, Yang Zhuang, Ya Zhang, Hua-Bao Liao, Jun-Chun Tang, Meng-Xian Pan, Fei-Fei Zeng, Yang Lei, Rui-Xue Lei, Shu Wang, An-Chun Liu, Juan Chen, Zhi-Feng Zhang, Dan Zhao, Song-Lin Wu, Ren-Zhong Liu, Ze-Fen Wang, Qi Wan
Glioblastoma (GBM) is the most aggressive glioma in the brain. Recurrence of GBM is almost inevitable within a short term after tumor resection. In a retrospective study of 386 cases of GBM collected between 2013 and 2016, we found that recurrence of GBM mainly occurs in the deep brain regions, including the basal ganglia, thalamus, and corpus callosum. But the mechanism underlying this phenomenon is not clear. Previous studies suggest that neuroligin-3 (NLGN3) is necessary for GBM growth. Our results show that the levels of NLGN3 in the cortex are higher than those in the deep regions in a normal human brain, and similar patterns are also found in a normal mouse brain...
May 18, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29775564/the-antibody-rhigm22-facilitates-hippocampal-remyelination-and-ameliorates-memory-deficits-in-the-cuprizone-mouse-model-of-demyelination
#10
Charlene Cui, Jing Wang, Ariana P Mullin, Anthony O Caggiano, Tom J Parry, Raymond W Colburn, Elias Pavlopoulos
Multiple sclerosis (MS) is a chronic, inflammatory demyelinating disease of the CNS. In addition to motor, sensory and visual deficits, MS is also characterized by hippocampal demyelination and memory impairment. We recently demonstrated that a recombinant human-derived monoclonal IgM antibody, which is designated rHIgM22 and currently in clinical development for people with MS, accelerates remyelination of the corpus callosum in the brains of cuprizone-treated mice. Here, we investigated the effects of rHIgM22 in the hippocampus and on hippocampal-dependent learning and memory in the same mouse model of cuprizone-induced demyelination and spontaneous remyelination...
May 15, 2018: Brain Research
https://www.readbyqxmd.com/read/29775133/preservation-of-electrophysiological-functional-connectivity-after-partial-corpus-callosotomy-case-report
#11
Kaitlyn Casimo, Fabio Grassia, Sandra L Poliachik, Edward Novotny, Andrew Poliakov, Jeffrey G Ojemann
Prior studies of functional connectivity following callosotomy have disagreed in the observed effects on interhemispheric functional connectivity. These connectivity studies, in multiple electrophysiological methods and functional MRI, have found conflicting reductions in connectivity or patterns resembling typical individuals. The authors examined a case of partial anterior corpus callosum connection, where pairs of bilateral electrocorticographic electrodes had been placed over homologous regions in the left and right hemispheres...
May 18, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29774379/-agenesis-of-the-corpus-callosum
#12
REVIEW
J M Lieb, F J Ahlhelm
CLINICAL ISSUE: Agenesis of the corpus callosum is reported to have an incidence of about 1:4000 live births. In 30-45% of cases, genetic etiologies can be identified, e. g., 10% chromosomal anomalies and 20-35% genetic syndromes. Environmental factors like fetal alcohol syndrome are also known to be prone to callosal agenesis. Callosal agenesis can be complete or partial and can be isolated or associated with other central nervous system (CNS) anomalies (e. g., cortical developmental disorders, callosal lipoma, intracranial cysts) or extra-CNS anomalies (e...
May 17, 2018: Der Radiologe
https://www.readbyqxmd.com/read/29773973/comprehensive-investigation-of-white-matter-tracts-in-professional-chess-players-and-relation-to-expertise-region-of-interest-and-dmri-connectometry
#13
Mahsa Mayeli, Farzaneh Rahmani, Mohammad Hadi Aarabi
Purpose: Expertise is the product of training. Few studies have used functional connectivity or conventional diffusometric methods to identify neural underpinnings of chess expertise. Diffusometric variables of white matter might reflect these adaptive changes, along with changes in structural connectivity, which is a sensitive measure of microstructural changes. Method: Diffusometric variables of 29 professional chess players and 29 age-sex matched controls were extracted for white matter regions based on John Hopkin's Mori white matter atlas and partially correlated against professional training time and level of chess proficiency...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29773561/postnatal-brain-growth-assessed-by-sequential-cranial-ultrasonography-in-infants-born-30-weeks-gestational-age
#14
R Cuzzilla, A J Spittle, K J Lee, S Rogerson, F M Cowan, L W Doyle, J L Y Cheong
BACKGROUND AND PURPOSE: Brain growth in the early postnatal period following preterm birth has not been well described. This study of infants born at <30 weeks' gestational age and without major brain injury aimed to accomplish the following: 1) assess the reproducibility of linear measures made from cranial ultrasonography, 2) evaluate brain growth using sequential cranial ultrasonography linear measures from birth to term-equivalent age, and 3) explore perinatal predictors of postnatal brain growth...
May 17, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29772232/hypomyelination-and-cognitive-impairment-in-mice-lacking-cd133-prominin-1
#15
Mi-Hyun Choi, Ji Eun Na, Ye Ran Yoon, Im Joo Rhyu, Young-Gyu Ko, Ja-Hyun Baik
The CD133 antigen, also known as prominin-1, is a glycoprotein that specifically localizes to plasma membrane protrusions. The precise function of CD133 remains unknown, but it is expressed in various progenitor cells including those derived from the neural and hematopoietic system, as well as different tissues. In the adult mouse brain, CD133 is highly expressed in white matter. Here, we performed immunochemical staining and electron microscopy to demonstrate that mice lacking CD133 (CD133-/- ) exhibit decreased myelin in the corpus callosum, the largest white matter tract in the brain...
May 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29769557/nde1-positively-regulates-oligodendrocyte-morphological-differentiation
#16
Shoko Shimizu, Yugo Ishino, Masaya Tohyama, Shingo Miyata
Oligodendrocytes, the myelin-forming cells in the central nervous system (CNS), undergo morphological differentiation characterized by elaborated branched processes to enwrap neuronal axons. However, the basic molecular mechanisms underlying oligodendrocyte morphogenesis remain unknown. Herein, we describe the essential roles of Nuclear Distribution E Homolog 1 (NDE1), a dynein cofactor, in oligodendrocyte morphological differentiation. In the mouse corpus callosum, Nde1 mRNA expression was detected in oligodendrocyte lineage cells at the postnatal stage...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29765301/the-additional-contribution-of-white-matter-hyperintensity-location-to-post-stroke-cognitive-impairment-insights-from-a-multiple-lesion-symptom-mapping-study
#17
Lei Zhao, Adrian Wong, Yishan Luo, Wenyan Liu, Winnie W C Chu, Jill M Abrigo, Ryan K L Lee, Vincent Mok, Lin Shi
White matter hyperintensities (WMH) are common in acute ischemic stroke patients. Although WMH volume has been reported to influence post-stroke cognition, it is still not clear whether WMH location, independent of acute ischemic lesion (AIL) volume and location, contributes to cognitive impairment after stroke. Here, we proposed a multiple-lesion symptom mapping model that considers both the presence of WMH and AIL to measure the additional contribution of WMH locations to post-stroke cognitive impairment...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29765059/postnatal-microstructural-developmental-trajectory-of-corpus-callosum-subregions-and-relationship-to-clinical-factors-in-very-preterm-infants
#18
Radhika Teli, Margaret Hay, Alexa Hershey, Manoj Kumar, Han Yin, Nehal A Parikh
Our objectives were to define the microstructural developmental trajectory of six corpus callosum subregions and identify perinatal clinical factors that influence early development of these subregions in very preterm infants. We performed a longitudinal cohort study of very preterm infants (32 weeks gestational age or younger) (N = 36) who underwent structural MRI and diffusion tensor imaging serially at four time points - before 32, 32, 38, and 52 weeks postmenstrual age. We divided the corpus callosum into six subregions, performed probabilistic tractography, and used linear mixed effects models to evaluate the influence of antecedent clinical factors on its microstructural growth trajectory...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29764831/prosopometamorphopsia-secondary-to-a-left-splenium-of-the-corpus-callosum-infarct
#19
Tamara Barghouthi, Nada El Husseini
No abstract text is available yet for this article.
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29764568/-effect-of-early-application-of-recombinant-human-erythropoietin-on-white-matter-development-in-preterm-infants
#20
Shu-Shuo Yang, Fa-Lin Xu, Hui-Qing Cheng, Hao-Ran Xu, Lin Yang, Jing-Yue Xing, Lin Cheng
OBJECTIVE: To evaluate the effect of early application of recombinant human erythropoietin (rhEPO) on white matter development in preterm infants using fractional anisotropy (FA) of magnetic resonance diffusion tensor imaging (DTI). METHODS: A total of 81 preterm infants with gestational age &le;32 weeks, birth weight <1 500 g, and hospitalization within 24 hours after birth were randomly divided into rhEPO group (42 infants) and control group (39 infants)...
May 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
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