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https://www.readbyqxmd.com/read/29781369/contralateral-extensive-cerebral-hemorrhagic-venous-infarction-caused-by-retrograde-venous-reflux-into-the-opposite-basal-vein-of-rosenthal-in-posttraumatic-carotid-cavernous-fistula-a-case-report-and-literature-review
#1
Prasert Iampreechakul, Adisak Tanpun, Punjama Lertbusayanukul, Somkiet Siriwimonmas
We describe a patient with traumatic carotid-cavernous fistula (CCF), subsequently developing contralateral extensive hemorrhagic venous infarction from retrograde venous reflux into the opposite basal vein of Rosenthal. A 54-year-old woman was involved in a motor vehicle accident and sustained severe traumatic brain injury. Two months later, she developed bilateral proptosis and audible bruit. Magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) of the brain demonstrated the right direct CCF...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29779085/progressive-grey-matter-volume-changes-in-patients-with-schizophrenia-over-6-weeks-of-antipsychotic-treatment-and-their-relationship-to-clinical-improvement
#2
Xiao Zhang, Yuyanan Zhang, Jinmin Liao, Sisi Jiang, Jun Yan, Weihua Yue, Dai Zhang, Hao Yan
Cross-sectional and longitudinal studies have identified widespread and progressive grey matter volume (GMV) reductions in schizophrenia, especially in the frontal lobe. In this study, we found a progressive GMV decrease in the rostral medial frontal cortex (rMFC, including the anterior cingulate cortex) in the patient group during a 6-week follow-up of 40 patients with schizophrenia and 31 healthy controls well-matched for age, gender, and education. The higher baseline GMV in the rMFC predicted better improvement in the positive score on the Positive and Negative Syndrome Scale (PANSS), and this might be related to the improved reality-monitoring...
May 19, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29777360/crossed-aphasia-following-cerebral-infarction-in-a-right-handed-patient-with-atypical-cerebral-language-dominance
#3
Xiaoping Tan, Yang Guo, Saihong Dun, Hongzan Sun
OBJECTIVE: Crossed aphasia (CA), usually referred to as an acquired language disturbance, is caused by a lesion in the cerebral hemisphere ipsilateral to the dominant hand, and the exact mechanism is not clear. The development of handedness is influenced by education and training and the impact of habitualization, while language is more susceptible to the impact of speech habits, and it is not absolutely accurate to judge cerebral language dominance by the degree of hand preference. METHODS: We describe a case of CA after right hemispheric stroke in a right-handed patient with atypical language dominance and attempt to analyze the mechanism of CA based on functional imaging methods, including arterial spin labeling (ASL) and positron emission tomography/magnetic resonance imaging (PET-MRI)...
May 18, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29775401/electroencephalographic-signals-during-anesthesia-recorded-from-surface-and-depth-electrodes
#4
Ville Jäntti, Tuomo Ylinen, Narayan Puthanmadam Subramaniyam, Kotoe Kamata, Arvi Yli-Hankala, Pasi Kauppinen, Eila Sonkajärvi
Purpose - Anesthesiologists have increasingly started to use EEG based indexes to estimate the level and type of unconsciousness. However, the physiology and biophysics are poorly understood in anesthesiological literature. Methods - EEG was recorded from electrodes on the surface of head, including scalp, as well as DBS (deep brain stimulation) electrodes implanted deep in the brain. Mathematical modeling with a realistic head model was performed to create illustrative images of the sensitivity of electrode montages...
May 18, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29774878/-etiology-and-risk-factors-for-meningitis-and-or-bacteremia-after-craniotomy-for-patients-with-glioma
#5
Yaning Wang, Yu Wang, Wenbin Ma
To evaluate the incidence and microbiological profile of meningitis and/or bacteremia after craniotomy in patients with glioma and analyze the risk factors relevant to postoperative meningitis.
 Methods: All demographic data, etiological data and clinical data for hospitalized patients who underwent craniotomy in Dept. of Neurosurgery of Peking Union Medical College Hospital between Jan. 2013 to Dec. 2017 were recorded.
 Results: The incidence of post-craniotomy meningitiswas 7.73%, bacteremia was 2.21% and meningitis combined with bacteremia was 1...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774003/disrupted-spontaneous-neural-activity-related-to-cognitive-impairment-in-postpartum-women
#6
Jin-Xia Zheng, Yu-Chen Chen, Huiyou Chen, Liang Jiang, Fan Bo, Yuan Feng, Wen-Wei Tang, Xindao Yin, Jian-Ping Gu
Purpose: Prior research has demonstrated that the postpartum period is associated with an increased risk of cognitive impairment. This study aims to investigate whether disrupted spontaneous neural activity exists in postpartum women without depression using resting-state functional magnetic resonance imaging (rs-fMRI) and to detect the relationship between these abnormalities and cognitive impairment. Materials and Methods: Postpartum women ( n = 22) were compared with age- and education-matched nulliparous women ( n = 23) using rs-fMRI...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29770569/frontal-cortical-thickness-correlates-positively-with-impulsivity-in-early-psychosis-male-patients
#7
Philipp S Baumann, Paul Klauser, Alessandra Griffa, Philippe Golay, Julie Palix, Luis Alameda, Valérie Moulin, Patric Hagmann, Kim Q Do, Philippe Conus
AIM: Impulsive behaviours, which are frequent in young people suffering from psychosis have been linked to risky and violent behaviours and participate to the burden of psychotic illness. Given that morphological brain correlates of impulsivity in schizophrenia have been poorly investigated especially in young adults, the aim of this study was to investigate the relationship between impulsivity and cortical thickness in early psychosis (EP) patients. METHOD: A total of 17 male subjects in the early phase of psychosis were recruited...
May 17, 2018: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/29770253/simultaneous-cerebrospinal-fluid-and-hematologic-metastases-in-a-high-grade-ependymoma
#8
Daniel Diaz-Aguilar, Sergei Terterov, Alexander M Tucker, Shaina Sedighim, Rudi Scharnweber, Stephanie Wang, Catherine Merna, Shayan Rahman
Background: Ependymomas are relatively uncommon tumors that constitute about 7% of all primary intracranial neoplasms. Among these, high-grade ependymomas are locally aggressive and recur most commonly at the primary site following resection. Ependymomas are also known to be the one glial neoplasm that tends to frequently metastasize inside and outside the central nervous system (CNS) that complicates workup and management. Metastasis due to surgical manipulation is common and neurosurgeons should be well-versed in the most effective methods to remove these tumors in order to avoid such metastases...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29767786/functional-connectivity-of-the-human-amygdala-in-health-and-in-depression
#9
Wei Cheng, Edmund T Rolls, Jiang Qiu, Xiongfei Xie, Wujun Lyu, Yu Li, Chu-Chung Huang, Albert C Yang, Shih-Jen Tsai, Fajin Lyu, Kaixiang Zhuang, Ching-Po Lin, Peng Xie, Jianfeng Feng
To analyze the functioning of the amygdala in depression, we performed the first voxel-level resting state functional-connectivity neuroimaging analysis of depression of voxels in the amygdala with all other voxels in the brain, with 336 patients with major depressive disorder and 350 controls. Amygdala voxels had decreased functional connectivity with the orbitofrontal cortex, temporal lobe areas, including the temporal pole, inferior temporal gyrus, and the parahippocampal gyrus. The reductions in the strengths of the functional connectivity of the amygdala voxels with the medial orbitofrontal cortex and temporal lobe voxels were correlated with increases in the Beck Depression Inventory score and in the duration of illness measures of depression...
May 14, 2018: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/29765952/malignant-orbital-meningioma-originating-from-the-frontal-lobe
#10
Giancarlo A Garcia, Andrew E Choy, Anton N Hasso, Don S Minckler
Purpose of the Study: Orbital meningiomas are typically benign tumors, most commonly originating from the dura of the sphenoid wing or the optic nerve sheath. Procedures: We describe an unusual case of a malignant meningioma originating from the frontal lobe that ultimately produced orbital and distant metastases. Results and Conclusions: Orbital invasion by the meningioma was preceded by multiple incomplete resections, which may have facilitated access to the orbit...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29764825/sudden-hemichorea-and-frontal-lobe-syndrome-a-rare-presentation-of-unbalanced-polycythaemia-vera
#11
Carmen García-Cabo, Jessica Fernandez-Dominguez, Valentín Mateos
Polycythaemia vera (PV) is an haematological neoplasm that frequently presents neurological symptoms. However, chorea is a rare complication of this disease, occurring in less than 5% of the patients. Cognitive impairment related to PV unbalanced is also a rare complication, and it can improve with proper treatment. We present a 96-year-old-man with acute-onset hemichorea and frontal lobe syndrome with no vascular pathology in the basal ganglia or frontal region. A clear relationship was observed between the onset of involuntary movements and the cognitive impairment and worsening of haematological parameters in the patient...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29761954/-research-on-brain-white-matter-network-in-cerebral-palsy-infant
#12
Jun Li, Cheng Yang, Yuanjun Wang, Shengdong Nie
Present study used diffusion tensor image and tractography to construct brain white matter networks of 15 cerebral palsy infants and 30 healthy infants that matched for age and gender. After white matter network analysis, we found that both cerebral palsy and healthy infants had a small-world topology in white matter network, but cerebral palsy infants exhibited abnormal topological organization: increased shortest path length but decreased normalize clustering coefficient, global efficiency and local efficiency...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29761952/-automatic-classification-of-first-episode-drug-naive-schizophrenia-with-multi-modal-magnetic-resonance-imaging
#13
Yongzhe Yang, Yue Zhang, Fengchun Wu, Xiaobing Lu, Yuping Ning, Biao Huang, Xin Du, Chengwei Li, Kaixi Wang, Xiaoming Wu, Kai Wu
A great number of studies have demonstrated the structural and functional abnormalities in chronic schizophrenia (SZ) patients. However, few studies analyzed the differences between first-episode, drug-naive SZ (FESZ) patients and normal controls (NCs). In this study, we recruited 44 FESZ patients and 56 NCs, and acquired their multi-modal magnetic resonance imaging (MRI) data, including structural and resting-state functional MRI data. We calculated gray matter volume (GMV), regional homogeneity (ReHo), amplitude of low frequency fluctuation (ALFF), and degree centrality (DC) of 90 brain regions, basing on an automated anatomical labeling (AAL) atlas...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29758948/argyrophilic-grain-pathology-in-frontotemporal-lobar-degeneration-demographic-clinical-neuropathological-and-genetic-features
#14
María José Gil, María Sagrario Manzano, María Luz Cuadrado, Cristina Fernández, Elena Góméz, Carmen Matesanz, Miguel Calero, Alberto Rábano
Frontotemporal lobar degeneration (FTLD) is a clinically, pathologically, and genetically heterogeneous group of disorders that affect the frontal and temporal lobes of the brain. FTLD classification distinguishes three main neuropathological groups: FTLD-tau, FTLD-TDP, and FTLD-FUS. As a four-repeat tauopathy, argyrophilic grain disease (AGD) is included in the FTLD-tau group. AGD may also appear in association with other neuropathological disorders. We describe the demographic, clinical, neuropathological, and genetic characteristics of a series of FTLD cases presenting with AGD...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29756278/sleep-related-motor-and-behavioral-disorders-recent-advances-and-new-entities
#15
REVIEW
David P Breen, Birgit Högl, Alfonso Fasano, Claudia Trenkwalder, Anthony E Lang
Patients with sleep-related motor and behavioral disorders present to a variety of subspecialty clinics (neurology, sleep medicine, respiratory medicine, psychiatry). Diagnosing these disorders can be difficult, and sometimes they have a significant impact on quality of life. Alongside a number of common and well-recognized conditions, several new disease entities have been described in recent years that present with abnormal nocturnal motor phenomena (such as ADCY5-associated disease and anti-IgLON5 disease)...
May 14, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29754132/recovery-of-brain-abscess-induced-stuttering-after-neurosurgical-intervention
#16
Daisuke Sudo, Youichi Doutake, Hidenori Yokota, Eiju Watanabe
Stuttering occurs in approximately 5% of all children and 1% of adults. One type, neurogenic stuttering, is usually attributable to strokes or other structural damages to the brain areas that are responsible for language fluency. Here, we present the first case of neurogenic stuttering caused by a brain abscess. The patient was a 60-year-old man admitted for a seizure and administered an anticonvulsant, after which he began stuttering. MRI revealed a brain abscess in the left frontal lobe that extended to the dorsolateral prefrontal cortex (BA (Brodmann's area) 9 and 46), frontal eye field (BA 8) and premotor cortex and supplementary motor area (BA 6)...
May 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29753901/primary-intracranial-leiomyosarcoma-with-intra-tumoral-hemorrhage-case-report-and-review-of-literature
#17
Koichi Torihashi, Chin Masaki, Kazumichi Yoshida, Osamu Narumi, Sen Yamagata
BACKGROUND: Primary intracranial leiomyosarcoma is a very rare occurrence. And primary leiomyosarcoma with intra-tumoral hemorrhage has not been published. We firstly present a case report of a rapidly enlarging primary intracranial leiomyosarcoma with intra-tumoral hemorrhage. CASE DESCRIPTION: A 41-yr old female presented with right hemiparesis and gait disturbance. And she has the brain tumor on frontal lobe. And the tumor was increasing rapidly. Intra-tumoral hemorrhage was suddenly occurred...
May 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29753107/the-neural-basis-of-free-language-choice-in-bilingual-speakers-disentangling-language-choice-and-language-execution
#18
Carlo Reverberi, Anna K Kuhlen, Shima Seyed-Allaei, R Stefan Greulich, Albert Costa, Jubin Abutalebi, John-Dylan Haynes
For everyday communication bilingual speakers need to face the complex task of rapidly choosing the most appropriate language given the context, maintaining this choice over the current communicative act, and shielding lexical selection from competing alternatives from non-target languages. Yet, speech production of bilinguals is typically flawless and fluent. Most of the studies available to date constrain speakers' language choice by cueing the target language and conflate language choice with language use...
May 9, 2018: NeuroImage
https://www.readbyqxmd.com/read/29752072/tar-dna-binding-protein-43-and-disrupted-in-schizophrenia-1-coaggregation-disrupts-dendritic-local-translation-and-mental-function-in-frontotemporal-lobar-degeneration
#19
Ryo Endo, Noriko Takashima, Yoko Nekooki-Machida, Yusuke Komi, Kelvin Kai-Wan Hui, Masaki Takao, Hiroyasu Akatsu, Shigeo Murayama, Akira Sawa, Motomasa Tanaka
BACKGROUND: Neurodegenerative diseases involving protein aggregation often accompany psychiatric symptoms. Frontotemporal lobar degeneration (FTLD) associated with TAR DNA-binding protein 43 (TDP-43) aggregation is characterized by progressive neuronal atrophy in frontal and temporal lobes of cerebral cortex. Furthermore, patients with FTLD display mental dysfunction in multiple behavioral dimensions. Nevertheless, their molecular origin for psychiatric symptoms remains unclear. METHODS: In FTLD neurons and mouse models with TDP-43 aggregates, we examined coaggregation between TDP-43 and disrupted in schizophrenia 1 (DISC1), a key player in the pathology of mental conditions and its effects on local translation in dendrites and psychiatric behaviors...
March 29, 2018: Biological Psychiatry
https://www.readbyqxmd.com/read/29748771/inhibition-impairment-in-frontotemporal-dementia-amyotrophic-lateral-sclerosis-and-alzheimer-s-disease-clinical-assessment-and-metabolic-correlates
#20
Jordi A Matías-Guiu, María Nieves Cabrera-Martín, María Valles-Salgado, Teresa Rognoni, Lucía Galán, Teresa Moreno-Ramos, José Luis Carreras, Jorge Matías-Guiu
The ability to reject an automatic tendency, i.e. inhibition, has been linked to the prefrontal cortex, but its neural underpinnings are still controversial. Neurodegenerative diseases represent an interesting model to explore this issue, given its frequent impairment in these disorders. We investigated the inhibitory impairment and its neural basis using four different tests, which evaluate the presence of inhibitory dysfunction (Stroop test, Hayling test, and two graphical perseveration tests), and assessed their correlation with brain metabolism using 18 F-fluorodeoxyglucose positron emission tomography in a group of 76 participants with behavioral variant frontotemporal dementia (bvFTD), Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS) and healthy controls (HC)...
May 10, 2018: Brain Imaging and Behavior
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