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https://www.readbyqxmd.com/read/29454265/supplementation-of-lycopene-attenuates-lipopolysaccharide-induced-amyloidogenesis-and-cognitive-impairments-via-mediating-neuroinflammation-and-oxidative-stress
#1
Jia Wang, Lixia Li, Zhuo Wang, Yifan Cui, Xintong Tan, Tian Yuan, Qian Liu, Zhigang Liu, Xuebo Liu
Neuroinflammation is documented to be the major culprit of Alzheimer's disease. Lycopene (LYC), a fat soluble carotenoid, exhibits neuroprotective function in several neurodegenerative disorders. However, the effects of LYC to countering systemic inflammation-induced amyloidogenesis and memory deficiency remain to be elucidated. In current study, 3-month-old male C57BL/6J mice were treated with 0.03% LYC (w/w, mixed into normal chow) for 5 weeks. The mice were then treated by intraperitoneal injection of LPS (0...
February 2, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29454023/interaction-between-hypothermia-and-delayed-mesenchymal-stem-cell-therapy-in-neonatal-hypoxic-ischemic-brain-injury
#2
Josephine Herz, Christian Köster, Barbara S Reinboth, Mark Dzietko, Wiebke Hansen, Hemmen Sabir, Cindy van Velthoven, Ivo Bendix, Ursula Felderhoff-Müser
Acute hypothermia treatment (HT) is the only clinically established intervention following neonatal hypoxic-ischemic brain injury. However, almost half of all cooled infants still die or suffer from long-lasting neurological impairments. Regenerative therapies, such as mesenchymal stem cells (MSC) appear promising as adjuvant therapy. In the present study, we hypothesized that HT combined with delayed MSC therapy results in augmented protection, improving long-term neurological outcome. Postnatal day 9 (P9) C57BL/6 mice were exposed to hypoxia-ischemia followed by 4 hours HT...
February 14, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29454006/predicting-cognitive-decline-with-deep-learning-of-brain-metabolism-and-amyloid-imaging
#3
Hongyoon Choi, Kyong Hwan Jin
For effective treatment of Alzheimer's disease (AD), it is important to identify subjects who are most likely to exhibit rapid cognitive decline. We aimed to develop an automatic image interpretation system based on a deep convolutional neural network (CNN) which can accurately predict future cognitive decline in mild cognitive impairment (MCI) patients using flurodeoxyglucose and florbetapir positron emission tomography (PET). PET images of 139 patients with AD, 171 patients with MCI and 182 normal subjects obtained from Alzheimer's Disease Neuroimaging Initiative database were used...
February 14, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29453986/sterol-o-acyltransferase-1-deficiency-improves-defective-insulin-signaling-in-the-brains-of-mice-fed-a-high-fat-diet
#4
Ning Xu, Hao Meng, Tian-Yi Liu, Ying-Li Feng, Yuan Qi, Dong-Huan Zhang, Hong-Lei Wang
Insulin resistance induced by a high-fat diet (HFD) is related to metabolic diseases, and sterol O-acyltransferase 1 (SOAT1) is a key enzyme for the biosynthesis of cholesteryl ester. In the present study, wild-type (WT) mice and SOAT1-knockout (KO) mice with a C57BL6 background fed a HFD were used to explore the role of SOAT1 in the hypothalamus. The results show that the WT mice exhibited a significant increase in body weight as well as hepatic histologic changes; they also had a lower glucose and insulin tolerance than the WT mice fed a normal diet...
February 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29453958/age-dependent-effects-of-dimethyl-fumarate-on-cognitive-and-neuropathological-features-in-the-streptozotocin-induced-rat-model-of-alzheimer-s-disease
#5
Irena Majkutewicz, Ewelina Kurowska, Magdalena Podlacha, Dorota Myślińska, Beata Grembecka, Jan Ruciński, Karolina Pierzynowska, Danuta Wrona
We previously demonstrated that dimethyl fumarate (DMF), an anti-oxidative and immunosuppresive compound, prevents intracerebroventricular (ICV) streptozotocin-induced disruption of spatial memory and neurodegeneration in 4-month-old rats. The present study evaluated the influence of age on DMF's therapeutic effect. Aged rats (22-months-old, n=40) were provided rodent chow containing DMF (0.4%) and given ICV injections of streptozotocin (STZ) or vehicle (Sham) on days 2 and 4. Spatial memory was evaluated using the Morris water maze (MWM) on days 14-21...
February 14, 2018: Brain Research
https://www.readbyqxmd.com/read/29453783/affordances-after-spinal-cord-injury
#6
Anna Sedda, Ettore Ambrosini, Giada Dirupo, Diana Tonin, Laura Valsecchi, Tiziana Redaelli, Michele Spinelli, Marcello Costantini, Gabriella Bottini
Spinal cord injury can cause cognitive impairments even when no cerebral lesion is appreciable. As patients are forced to explore the environment in a non-canonical position (i.e., seated on a wheelchair), a modified relation with space can explain motor-related cognitive differences compared to non-injured individuals. Peripersonal space is encoded in motor terms, that is, in relation to the representation of action abilities and is strictly related to the affordance of reachability. In turn, affordances, the action possibilities suggested by relevant properties of the environment, are related to the perceiver's peripersonal space and motor abilities...
February 16, 2018: Journal of Neuropsychology
https://www.readbyqxmd.com/read/29453447/embryonic-stem-cell-transplants-as-a-therapeutic-strategy-in-a-rodent-model-of-autism
#7
Jennifer J Donegan, Angela M Boley, Daniel J Lodge
Autism is a neurodevelopmental disorder characterized by disruptions in three core behavioral domains: deficits in social interaction, impairments in communication, and repetitive and stereotyped patterns of behavior or thought. There are currently no drugs available for the treatment of the core symptoms of ASD and drugs that target comorbid symptoms often have serious adverse side effects, suggesting an urgent need for new therapeutic strategies. The neurobiology of autism is complex, but converging evidence suggests that ASD involves disruptions in the inhibitory GABAergic neurotransmitter system...
February 7, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29453439/working-memory-and-brain-tissue-microstructure-white-matter-tract-integrity-based-on-multi-shell-diffusion-mri
#8
Sohae Chung, Els Fieremans, Nuri E Kucukboyaci, Xiuyuan Wang, Charles J Morton, Dmitry S Novikov, Joseph F Rath, Yvonne W Lui
Working memory is a complex cognitive process at the intersection of sensory processing, learning, and short-term memory and also has a general executive attention component. Impaired working memory is associated with a range of neurological and psychiatric disorders, but very little is known about how working memory relates to underlying white matter (WM) microstructure. In this study, we investigate the association between WM microstructure and performance on working memory tasks in healthy adults (right-handed, native English speakers)...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453337/p66shc-signaling-mediates-diabetes-related-cognitive-decline
#9
Yohei Minami, Noriyuki Sonoda, Eiichi Hayashida, Hiroaki Makimura, Makoto Ide, Noriko Ikeda, Masahiro Ohgidani, Takahiro A Kato, Yoshihiro Seki, Yasutaka Maeda, Shigenobu Kanba, Ryoichi Takayanagi, Yoshihiro Ogawa, Toyoshi Inoguchi
Accumlating evidence have suggested that diabetes mellitus links dementia, notably of Alzheimer's disease (AD). However, the underlying mechanism remains unclear. Several studies have shown oxidative stress (OS) to be one of the major factors in the pathogenesis of diabetic complications. Here we show OS involvement in brain damage in a diabetic animal model that is at least partially mediated through an AD-pathology-independent mechanism apart from amyloid-β accumulation. We investigated the contribution of the p66Shc signaling pathway to diabetes-related cognitive decline using p66Shc knockout (-/-) mice...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453297/what-factors-mediate-the-inter-relationship-between-frailty-and-pain-in-cognitively-and-functionally-sound-older-adults-a-prospective-longitudinal-ageing-cohort-study-in-taiwan
#10
Jing-Hui Chiou, Li-Kuo Liu, Wei-Ju Lee, Li-Ning Peng, Liang-Kung Chen
OBJECTIVES: The main aim was to investigate the complex inter-relationship between frailty and pain, and the mediating roles of cognitive function, morbidity and mood in this nexus. DESIGN: A cross-sectional analysis. SETTING: A prospective community-dwelling population-based cohort. PARTICIPANTS: 1682 adults age ≥50 years without evident cognitive or functional impairment, or history of cancer. PRIMARY AND SECONDARY OUTCOME MEASURES: The mediating effect of depression, cognitive function and comorbidity on the nexus between pain and frailty among older and middle-aged adults...
February 16, 2018: BMJ Open
https://www.readbyqxmd.com/read/29453111/febrile-infection-related-epilepsy-syndrome-fires-therapeutic-complications-long-term-neurological-and-neuroimaging-follow-up
#11
Hsiu-Fen Lee, Ching-Shiang Chi
PURPOSE: To understand the long-term neurological outcomes and chronological changes of brain MRIs in patients with febrile infection-related epilepsy syndrome (FIRES). METHODS: From December 2000 to May 2016, 29 patients diagnosed with FIRES were collected retrospectively. The demographic distribution, clinical manifestations, neuroimaging findings, and treatment methodology were described. Follow-up clinical outcomes and chronological evolution of neuroimaging findings were analyzed...
February 6, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29453033/the-social-attribution-task-multiple-choice-sat-mc-psychometric-comparison-with-social-cognitive-measures-for-schizophrenia-research
#12
Jason K Johannesen, Joanna M Fiszdon, Andrea Weinstein, David Ciosek, Morris D Bell
The Social Attribution Task-Multiple Choice (SAT-MC) tests the ability to extract social themes from viewed object motion. This form of animacy perception is thought to aid the development of social inference, but appears impaired in schizophrenia. The current study was undertaken to examine psychometric equivalence of two forms of the SAT-MC and to compare their performance against social cognitive tests recommended for schizophrenia research. Thirty-two schizophrenia (SZ) and 30 substance use disorder (SUD) participants completed both SAT-MC forms, the Bell-Lysaker Emotion Recognition Task (BLERT), Hinting Task, The Awareness of Social Inference Test (TASIT), Ambiguous Intentions and Hostility Questionnaire (AIHQ) and questionnaire measures of interpersonal function...
February 7, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29452811/effects-on-adult-cognitive-function-after-neonatal-exposure-to-clinically-relevant-doses-of-ionising-radiation-and-ketamine-in-mice
#13
S Buratovic, B Stenerlöw, S Sundell-Bergman, A Fredriksson, H Viberg, T Gordh, P Eriksson
BACKGROUND: Radiological methods for screening, diagnostics and therapy are frequently used in healthcare. In infants and children, anaesthesia/sedation is often used in these situations to relieve the patients' perception of stress or pain. Both ionising radiation (IR) and ketamine have been shown to induce developmental neurotoxic effects and this study aimed to identify the combined effects of these in a murine model. METHODS: Male mice were exposed to a single dose of ketamine (7...
March 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29452810/interleukin-6-is-both-necessary-and-sufficient-to-produce-perioperative-neurocognitive-disorder-in-mice
#14
J Hu, X Feng, M Valdearcos, D Lutrin, Y Uchida, S K Koliwad, M Maze
BACKGROUND: Perioperative neurocognitive disorders (PND) result in long-term morbidity and mortality with no effective interventions available. Because interleukin-6 (IL-6), a pro-inflammatory cytokine, is consistently up-regulated by trauma, including after surgery, we determined whether IL-6 is a putative therapeutic target for PND in a mouse model. METHODS: Following institutional approval, adult (12-14 weeks) male C57/Bl6 mice were pretreated with the IL-6 receptor (IL6R) blocking antibody tocilizumab prior to open tibia fracture with internal fixation under isoflurane anaesthesia...
March 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29452780/gender-differences-in-the-association-of-cognitive-impairment-with-the-risk-of-hip-fracture-in-the-older-population
#15
Elena Lobo, Guillermo Marcos, Javier Santabárbara, Luis Lobo-Escolar, Helena Salvador-Rosés, Concepción De la Cámara, Raul Lopez-Anton, Patricia Gracia-García, Antonio Lobo-Escolar
OBJECTIVES: To test the hypothesis that differences by gender will be observed in the association of hip fracture risk with stages of cognitive impairment; and to explore the association between Petersen's "mild cognitive impairment" (MCI) and DSM-5 "mild neurocognitive disorder" (MND). STUDY DESIGN: A community sample of 4803 individuals aged 55+ years was assessed in a two-phase case-finding enquiry in Zaragoza, Spain, and was followed up for 16 years...
March 2018: Maturitas
https://www.readbyqxmd.com/read/29452601/reactive-hyperemia-index-rhi-and-cognitive-performance-indexes-are-associated-with-histologic-markers-of-liver-disease-in-subjects-with-non-alcoholic-fatty-liver-disease-nafld-a-case-control-study
#16
Antonino Tuttolomondo, Salvatore Petta, Alessandra Casuccio, Carlo Maida, Vittoriano Della Corte, Mario Daidone, Domenico Di Raimondo, Rosaria Pecoraro, Roberto Fonte, Anna Cirrincione, Rita Zafonte, Daniela Cabibi, Calogero Cammà, Vito Di Marco, Anna Licata, Franco Magliozzo, Giulio Marchesini, Giovanni Merlino, Antonio Craxì, Antonio Pinto
BACKGROUND: No study evaluated vascular health markers in subjects with non-alcoholic fatty liver disease (NAFLD) through a combined analysis of reactive hyperemia peripheral arterial tonometry (RH-PAT) and arterial stiffness indexes. AIM OF THE STUDY: We aimed to assess whether NAFLD and its histological severity are associated with impairment of arterial stiffness and RH-PAT indexes in a mixed cohort of patients with biopsy-proven NAFLD. MATERIALS AND METHODS: The Kleiner classification was used to grade NAFLD grade...
February 16, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29452371/a-bidirectional-association-between-cognitive-ability-in-young-adulthood-and-epilepsy-a-population-based-cohort-study
#17
Merete Osler, Erik L Mortensen, Kaare Christensen, Gunhild T Christensen
Aim: To investigate the bidirectional association between cognitive ability in young adulthood and epilepsy. Methods: This cohort study included 1 159 076 men enrolled in the mandatory conscription board examination from the Danish Conscription Database (DCD; 658 465 men examined 1957-84), the Danish Defence Personnel Organization Database (DPOD; 216 509 men examined 1987-2005) and the Danish Conscription Registry (DCR; 284 102 men examined 2006-15). A supplementary analysis included 14 814 female volunteers...
February 14, 2018: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29452160/orchiectomy-and-letrozole-differentially-regulate-synaptic-plasticity-and-spatial-memory-in-a-manner-that-is-mediated-by-src-1-in-the-hippocampus-of-male-mice
#18
Jikai Zhao, Chen Bian, Mengying Liu, Yangang Zhao, Tao Sun, Fangzhou Xing, Jiqiang Zhang
Hippocampal synaptic plasticity is the basis of spatial memory and cognition and is strongly regulated by both testicular androgens (testosterone, T) and hippocampal estrogens (17β-estradiol, E2) converted from T by aromatase, which is inhibited by letrozole (LET), but the contribution of each pathway to spatial memory and the associated mechanisms are unclear. In this study, we first used orchiectomy (ORX) and LET injection to investigate the effects of T and hippocampal E2 on spatial memory and hippocampal synaptic plasticity...
February 13, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29452000/optimal-items-for-assessing-sluggish-cognitive-tempo-in-children-across-mother-father-and-teacher-ratings
#19
Belén Sáez, Mateu Servera, Stephen P Becker, G Leonard Burns
A recent meta-analysis identified optimal items for assessing sluggish cognitive tempo (SCT) as distinct from attention deficit/hyperactivity disorder inattention (ADHD-IN), and a preliminary study with teacher ratings of children in the United States found strong support for the convergent and discriminant validity of 15 SCT items. The current study evaluated whether the same 15 SCT items demonstrated convergent and discriminant validity from ADHD-IN in a large, community-based sample of children in Spain, and whether validity results were replicated across mother, father, and teacher ratings...
February 16, 2018: Journal of Clinical Child and Adolescent Psychology
https://www.readbyqxmd.com/read/29451994/stroop-task-related-brain-activity-in-patients-with-insomnia-changes-after-cognitive-behavioral-therapy-for-insomnia
#20
Jeong Yeon Hwang, Nambeom Kim, Soohyun Kim, Juhyun Park, Jae-Won Choi, Seog Ju Kim, Chang-Ki Kang, Yu Jin Lee
OBJECTIVE/BACKGROUND: In the present study, we compared differences in brain activity during the Stroop task between patients with chronic insomnia disorder (CID) and good sleepers (GS). Furthermore, we evaluated changes in Stroop task-related brain activity after cognitive-behavioral therapy for insomnia (CBT-I). PARTICIPANTS/METHODS: The final analysis included 21 patients with CID and 25 GS. All participants underwent functional magnetic resonance imaging (fMRI) while performing the color-word Stroop task...
February 16, 2018: Behavioral Sleep Medicine
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