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frontal lobe dysfunction

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https://www.readbyqxmd.com/read/29332467/is-hippocampal-avoidance-during-whole-brain-radiotherapy-risky-for-patients-with-small-cell-lung-cancer-hippocampal-metastasis-rate-and-associated-risk-factors
#1
Esra Korkmaz Kirakli, Ozgur Oztekin
OBJECTIVES: Hippocampal avoidance during whole-brain radiotherapy is performed to prevent neural stem cell injury causing neurocognitive dysfunction. Nevertheless, the estimated risk of metastases in hippocampal avoidance area in small-cell lung cancer is unknown. The current study aimed to characterize the metastatic distribution within the brain relative to the hippocampus, estimate the incidence of hippocampal metastasis in patients with small-cell lung cancer, and identify clinical and radiographic variables that may be associated with the risk of hippocampal avoidance area metastasis...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29318507/mid-term-prognosis-of-non-functioning-pituitary-adenomas-with-high-proliferative-potential-really-an-aggressive-variant
#2
Yoshikazu Ogawa, Hidefumi Jokura, Kuniyasu Niizuma, Teiji Tominaga
Pituitary adenomas with high proliferation rate and rapid growth are well known, but the clinical characteristics, prognosis, and treatment algorithm remain unclear. The clinical characteristics and mid-term prognosis of patients with non-functioning pituitary adenomas with high proliferative potential were retrospectively investigated. This study identified 53 patients with Ki-67 labeling index of > 3% among 845 patients with non-functioning pituitary adenoma (6.3%) initially treated by surgery. Prophylactic treatment was not applied for patients with residual tumor, but salvage treatment was performed if tumor progression was identified within the follow-up period...
January 9, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29280514/left-dorsolateral-prefrontal-cortex-atrophy-is-associated-with-frontal-lobe-function-in-alzheimer-s-disease-and-contributes-to-caregiver-burden
#3
Kiwamu Matsuoka, Fumihiko Yasuno, Akiko Hashimoto, Toshiteru Miyasaka, Masato Takahashi, Kuniaki Kiuchi, Junzo Iida, Kimihiko Kichikawa, Toshifumi Kishimoto
OBJECTIVE: Caregivers of patients with dementia experience physical and mental deterioration. We have previously reported a correlation between caregiver burden and the Frontal Assessment Battery (FAB) total scores of patients with Alzheimer's disease (AD), especially regarding the dependency factor from the Zarit Burden Interview. The present study aimed to identify an objective biomarker for predicting caregiver burden. METHODS: The participants were 26 pairs of caregivers and patients with AD and mild-to-moderate dementia...
December 27, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/29237665/intermittent-catatonia-and-complex-automatisms-caused-by-frontal-lobe-epilepsy-in-dementia
#4
Robynne George, Alex Langford
An 82-year-old man was admitted to the emergency department following bizarre behaviour. Police had noticed him driving erratically through his village. He did not stop when instructed, drove slowly home and appeared 'vacant' on questioning. While in hospital, he had approximately 15 episodes of catatonia, involving rigidity, negativism, mutism except echolalia and perseveration, automatic obedience and utilisation phenomena, lasting 2-20 min each. Between episodes, he was amnestic but otherwise well. Electroencephalography demonstrated bifrontal slowing with left-sided emphasis, and captured two focal onset partial seizures with the clinical correlate of the syndrome described above...
December 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29209400/frontal-lobe-dysfunction-in-a-depressed-patient-who-survived-a-suicide-attempt-by-jumping-from-the-bridge-on-the-han-river
#5
Kiwon Kim, Hong Jin Jeon
Suicide attempts at the Han river are rapidly increasing, which are 4.11 times from 2005 to 2015, whereas the rate of completed suicide in South Korea increased 1.07 times during the same period. However, few studies have been conducted on the issue because many suicide attempters were seriously injured after a fall in the Han river. We present a case of a patient with major depressive disorder (MDD) who attempted suicide and minimally injured after jumping from the bridge at the Han river. We could assess his psychological and neurocognitive functions before and immediately after his attempt...
November 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/29201866/getting-lost-behavior-in-patients-with-mild-alzheimer-s-disease-a-cognitive-and-anatomical-model
#6
Chathuri Yatawara, Daryl Renick Lee, Levinia Lim, Juan Zhou, Nagaendran Kandiah
Background: Getting lost behavior (GLB) in the elderly is believed to involve poor top-down modulation of visuospatial processing, by impaired executive functions. However, since healthy elderly and elderly with Alzheimer's disease (AD) experience a different pattern of cognitive decline, it remains unclear whether this hypothesis can explain GLB in dementia. Objective: We sought to identify whether poor executive functions and working memory modulate the relationship between visuospatial processing and prevalence of GLB in healthy elderly and patients with AD...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29200859/abnormal-regional-spontaneous-neural-activity-in-visual-pathway-in-retinal-detachment-patients-a-resting-state-functional-mri-study
#7
Xin Huang, Dan Li, Hai-Jun Li, Yu-Lin Zhong, Shelby Freeberg, Jing Bao, Xian-Jun Zeng, Yi Shao
Objective: The aim of the study was to investigate changes of brain neural homogeneity in retinal detachment (RD) patients using the regional homogeneity (ReHo) method to understand their relationships with clinical features. Materials and methods: A total of 30 patients with RD (16 men and 14 women), and 30 healthy controls (HCs) (16 men and 14 women) closely matched in age and sex were recruited. Resting-state functional magnetic resonance imaging scans were performed for all subjects...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29192947/-executive-functions-in-frontal-lob-syndrome-a-case-report
#8
Özge Metin, Ali Evren Tufan, Nagihan Cevher Binici, Özge Saraçlı, Adnan Atalay, Ayşegül Yolga Tahiroğlu
Prefrontal cortex in frontal lobe (FL) is the center of executive functions (EF). FL damage can lead to executive dysfunction by influencing frontal-subcortical circuits (dorsolateral, orbitofrontal, ventromedial). Damage to the dorsolateral prefrontal cortex (DLPFC) can lead to deterioration in EF, whereas damage to the orbitofrontal cortex (OFC) can lead to personality changes with the characteristic of disinhibition and irritability. In addition, damage to the anterior cingulate cortex/medial prefrontal cortex (ACC/MPFC) can result in decreased spontaneity...
2017: Türk Psikiyatri Dergisi, Turkish Journal of Psychiatry
https://www.readbyqxmd.com/read/29187684/-a-case-of-hereditary-sensory-and-autonomic-neuropathy-type-1e-with-frontal-lobe-dysfunction-as-an-initial-symptom
#9
Masashi Watanabe, Yushi Matsumoto, Kensho Okamoto, Bungo Okuda, Ikuko Mizuta, Toshiki Mizuno
A 49-year-old man had developed gradually personality change, gait disturbance, and hearing loss for five years. On admission, he presented with frontal release signs, stuttering, vertical gaze palsy, sensorineural deafness, muscle rigidity, ataxia, and sensory disturbance with areflexia in the lower extremities. Brain MRI demonstrated atrophy in the cerebellum and midbrain tegmentum as well as cerebral atrophy, predominantly in the frontal lobe. He was tentatively diagnosed as progressive supranuclear palsy on the basis of clinical features and imagings...
November 28, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/29186356/altered-caudate-connectivity-is-associated-with-executive-dysfunction-after-traumatic-brain-injury
#10
Sara De Simoni, Peter O Jenkins, Niall J Bourke, Jessica J Fleminger, Peter J Hellyer, Amy E Jolly, Maneesh C Patel, James H Cole, Robert Leech, David J Sharp
Traumatic brain injury often produces executive dysfunction. This characteristic cognitive impairment often causes long-term problems with behaviour and personality. Frontal lobe injuries are associated with executive dysfunction, but it is unclear how these injuries relate to corticostriatal interactions that are known to play an important role in behavioural control. We hypothesized that executive dysfunction after traumatic brain injury would be associated with abnormal corticostriatal interactions, a question that has not previously been investigated...
November 23, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29171486/-monitoring-of-neurotrophic-factors-and-cognitive-function-in-patients-with-traumatic-brain-injury
#11
Yu V Karakulova, N V Selyanina
AIM: To study the neurological and cognitive status in comparison to the quantitative content of blood serum neurotrophic factors of patients with acute and long-term brain injury during treatment with cerebrolysin. MATERIAL AND METHODS: Eighty patients, 56 men and 24 women, aged from 18 to 64 years, were examined in acute and long-term periods of the brain injury of moderate severity. An open, comparative, randomized study was performed before and after treatment with cerebrolysin...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29170933/impact-of-previous-episodes-of-hepatic-encephalopathy-on-short-term-brain-function-recovery-after-liver-transplantation-a-functional-connectivity-strength-study
#12
Yue Cheng, Gaoyan Zhang, Wen Shen, Li-Xiang Huang, Li Zhang, Shuang-Shuang Xie, Xiao-Dong Zhang, Baolin Liu
Neuropsychological studies have documented an incomplete reversal of pre-existing cognitive dysfunction in cirrhotic patients after liver transplantation (LT) and have found this is more severe in patients with hepatic encephalopathy (HE). In this study, we aimed to investigate the impact of prior HE episodes on post-transplantation brain function recovery. Resting-state functional magnetic resonance imaging data was collected from 30 healthy controls and 33 cirrhotic patients (HE, n = 15 and noHE, n = 18) before and one month after LT...
November 23, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29164126/overweight-and-cognitive-performance-high-body-mass-index-is-associated-with-impairment-in-reactive-control-during-task-switching
#13
Laura Steenbergen, Lorenza S Colzato
The prevalence of weight problems is increasing worldwide. There is growing evidence that high body mass index (BMI) is associated with frontal lobe dysfunction and deficits in cognitive control. The present study aims to clarify the association between weight status and the degree of impairment in cognitive flexibility, i.e., the ability to efficiently switch from one task to another, by disentangling the preparatory and residual domains of task switching. Twenty-six normal weight (BMI < 25, five males) and twenty-six overweight (BMI ≥ 25, seven males) university students performed a task-switching paradigm that provides a relatively well-established diagnostic measure of proactive vs...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29153397/embolic-stroke-due-to-carotidynia-potentially-associated-with-moving-carotid-artery-caused-by-swallowing
#14
Yoshitaka Yamaguchi, Mikito Hayakawa, Naoto Kinoshita, Chiaki Yokota, Toshiya Ishihara, Kazunori Toyoda
A 63-year-old woman with end-stage renal disease on maintenance hemodialysis discontinued her medication for rheumatoid arthritis with prednisolone and azathioprine. One month later, she was admitted because of consciousness disturbance and right hemiparesis. Diffusion-weighted brain magnetic resonance imaging (MRI) revealed multiple hyperintensities in her left frontal and parietal lobes. She also developed high fever and left neck pain. Carotid ultrasonography showed calcified plaque with vessel wall swelling at the bifurcation of the left common carotid artery (LCCA) and surrounding hypoechoic soft tissue...
November 15, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29149177/new-brain-lesions-with-no-impact-on-physical-disability-can-impact-cognition-in-early-multiple-sclerosis-a-ten-year-longitudinal-study
#15
D Wybrecht, F Reuter, F Pariollaud, W Zaaraoui, A Le Troter, A Rico, S Confort-Gouny, E Soulier, M Guye, A Maarouf, J-P Ranjeva, J Pelletier, B Audoin
OBJECTIVE: In early multiple sclerosis, although brain T2 lesions accrual are hallmark of the disease, only weak correlations were found between T2 lesions accrual and EDSS progression, the disability scale commonly used in multiple sclerosis studies. This may be related to the very poor sensitivity of EDSS to cognitive dysfunctions that may occur and progress from the first stage of the disease. In the present study, we aimed to demonstrate that cognitive deficits progress during the first ten years of MS and are significantly impacted by new T2 lesions...
2017: PloS One
https://www.readbyqxmd.com/read/29131826/an-interactive-sports-video-game-as-an-intervention-for-rehabilitation-of-community-living-patients-with-schizophrenia-a-controlled-single-blind-crossover-study
#16
Nobuko Shimizu, Tomohiro Umemura, Masahiro Matsunaga, Takayoshi Hirai
Hypofrontality is a state of decreased cerebral blood flow in the prefrontal cortex during executive function performance; it is commonly observed in patients with schizophrenia. Cognitive dysfunction, as well as the psychological symptoms of schizophrenia, influences the ability of patients to reintegrate into society. The current study investigated the effects of an interactive sports video game (IVG; Nintendo Wii™ Sports Resort) on frontal lobe function of patients with schizophrenia. A sample of eight patients (6 male and 2 female; mean age = 46...
2017: PloS One
https://www.readbyqxmd.com/read/29126704/decreased-neurite-density-within-frontostriatal-networks-is-associated-with-executive-dysfunction-in-temporal-lobe-epilepsy
#17
Anny Reyes, Vedang S Uttarwar, Yu-Hsuan A Chang, Akshara R Balachandra, Chris J Pung, Donald J Hagler, Briana M Paul, Carrie R McDonald
OBJECTIVE: Executive dysfunction is observed in a sizable number of patients with refractory temporal lobe epilepsy (TLE). The frontostriatal network has been proposed to play a significant role in executive functioning, however, because of the complex architecture of these tracts, it is difficult to generate measures of fiber tract microstructure using standard diffusion tensor imaging. To examine the association between frontostriatal network compromise and executive dysfunction in TLE, we applied an advanced, multishell diffusion model, restriction spectrum imaging (RSI), that isolates measures of intraaxonal diffusion and may provide better estimates of fiber tract compromise in TLE...
November 8, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29110334/frontotemporal-dementia-with-trans-activation-response-dna-binding-protein-43-presenting-with-catatonic-syndrome
#18
Ryohei Watanabe, Ito Kawakami, Mitsumoto Onaya, Shinji Higashi, Nobutaka Arai, Haruhiko Akiyama, Masato Hasegawa, Tetsuaki Arai
Catatonia is a clinical syndrome characterized by symptoms such as immobility, mutism, stupor, stereotypy, echophenomena, catalepsy, automatic obedience, posturing, negativism, gegenhalten and ambitendency. This syndrome occurs mostly in mood disorder and schizophrenic patients, and is related to neuronal dysfunction involving the frontal lobe. Some cases of frontotemporal dementia (FTD) with catatonia have been reported, but these cases were not examined by autopsy. Here, we report on a FTD case which showed catatonia after the first episode of brief psychotic disorder...
November 7, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29101795/impaired-frontal-lobe-functions-in-patients-with-parkinson-s-disease-and-psychosis
#19
Naveen Thota, Abhishek Lenka, Lija George, Shantala Hegde, Shyam Sundar Arumugham, Shweta Prasad, Albert Stezin, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal
INTRODUCTION: Patients with Parkinson's disease (PD) may develop several non-motor symptoms (NMS). Psychosis is one of the debilitating NMS of PD. The neurobiology of psychosis is not fully understood. This study aims to compare the frontal lobe functions of PD patients with and without psychosis using the Frontal Assessment Battery (FAB). METHODOLOGY: This study included 69 patients with PD; 34 with psychosis (PD-P) and 35 without psychosis (PD-NP). Mini Mental Status Examination (MMSE) was used to screen for cognitive impairment...
October 28, 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29098059/curcumin-reverses-the-diazepam-induced-cognitive-impairment-by-modulation-of-oxidative-stress-and-erk-1-2-nf-%C3%AE%C2%BAb-pathway-in-brain
#20
Alexandra C Sevastre-Berghian, Vlad Făgărăsan, Vlad A Toma, Ioana Bâldea, Diana Olteanu, Remus Moldovan, Nicoleta Decea, Gabriela A Filip, Simona V Clichici
Oxidative stress and inflammation can be involved in cognitive dysfunction associated with neurodegenerative disorders. Diazepam (DZP) administration has been chosen to simulate the memory impairment. The aim of this study was to evaluate the effects of curcumin (CUR) on spatial cognition, ambulatory activity, and blood and brain oxidative stress levels. The ERK/NF-κB signaling pathway and the histopathological changes in the hippocampus and frontal lobe, in diazepam-treated rats, were also analyzed. The animals were divided into 4 groups: control, carboxymethylcellulose (CMC) + CUR, CMC + DZP, and CUR + CMC + DZP...
2017: Oxidative Medicine and Cellular Longevity
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