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https://www.readbyqxmd.com/read/28324983/the-precuneus-may-encode-irrationality-in-human-gambling
#1
P Sacre, M S D Kerr, S Subramanian, K Kahn, J Gonzalez-Martinez, M A Johnson, S V Sarma, J T Gale
Humans often make irrational decisions, especially psychiatric patients who have dysfunctional cognitive and emotional circuitry. Understanding the neural basis of decision-making is therefore essential towards patient management, yet current studies suffer from several limitations. Functional magnetic resonance imaging (fMRI) studies in humans have dominated decision-making neuroscience, but have poor temporal resolution and the blood oxygenation level-dependent signal is only a proxy for neural activity. On the other hand, lesion studies in humans used to infer functionality in decision-making lack characterization of neural activity altogether...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324678/traumatic-stress-symptoms-after-the-november-13th-2015-terrorist-attacks-among-young-adults-the-relation-to-media-and-emotion-regulation
#2
Emmanuel Monfort, Mohammad Hassan Afzali
OBJECTIVE: A major terror attack occurred in the Paris region on 13th November 2015. This event was widely showed, described, and commented in the media. Media consumption may lead to a widespread diffusion of trauma-related symptoms following a collective trauma. These effects may depend on the type of media and emotion regulation strategies used by the media consumer. METHOD: Trauma history, traumatic symptoms, media consumption, psychological distress, and emotion regulation strategies of 451 young adults were assessed by an online survey...
March 6, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28324240/neurocognitive-profiles-in-msud-school-age-patients
#3
Juliette Bouchereau, Julie Leduc-Leballeur, Samia Pichard, Apolline Imbard, Jean-François Benoist, Marie-Thérèse Abi Warde, Jean-Baptiste Arnoux, Valérie Barbier, Anaïs Brassier, Pierre Broué, Aline Cano, Brigitte Chabrol, Gilles Damon, Claire Gay, Isabelle Guillain, Florence Habarou, Delphine Lamireau, Chris Ottolenghi, Laetitia Paermentier, Frédérique Sabourdy, Guy Touati, Hélène Ogier de Baulny, Pascale de Lonlay, Manuel Schiff
Maple syrup urine disease (MSUD), an inborn error of amino acids catabolism is characterized by accumulation of branched chain amino acids (BCAAs) leucine, isoleucine, valine and their corresponding alpha-ketoacids. Impact on the cognitive development has been reported historically, with developmental delays of varying degree. Currently, earlier diagnosis and improved management allow a better neurodevelopment, without requirement of special education. However, specific impairments can be observed, and so far, results of detailed neurocognitive assessments are not available...
March 21, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28323682/relationship-of-cognitive-function-to-motor-symptoms-and-mood-disorders-in-patients-with-isolated-dystonia
#4
Jennifer A Foley, R Saman Vinke, Patricia Limousin, Lisa Cipolotti
OBJECTIVE: To investigate the relationship of dystonia symptoms to cognitive function by comparing cognitive performance in patients with focal (cervical) and generalized dystonia subtypes and examining the differential contributions of severity of symptoms and mood disorders to cognition. BACKGROUND: Studies of the nonmotor syndrome in isolated dystonia have reported evidence of cognitive dysfunction, but the cause of this impairment remains unclear. Several studies have suggested that poor cognitive performance reflects the distracting effects of the motor symptoms and/or a mood disorder...
March 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28320132/early-markers-of-kidney-dysfunction-and-cognitive-impairment-among-older-adults
#5
Yudan Wei, Yinan Kevin Wei, Jianmin Zhu
BACKGROUND: Age-related decline in kidney function can be an important risk factor for cognitive impairment in older adults. In this study, we examined several kidney function measures for the association with cognitive function in older adults in hope to identify early and sensitive markers that can be used for the detection or screening for cognitive impairment. METHODS: A total of 1982 older participants (aged ≥60years) in the 1999-2002 National Health and Nutrition Examination Survey was analyzed for the association between kidney function and cognitive impairment using multivariate logistic regression and general linear models...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319548/tanshinone-iia-attenuates-sevoflurane-neurotoxicity-in-neonatal-mice
#6
Yimeng Xia, Heng Xu, Chenfei Jia, Xiaodong Hu, Yu Kang, Xiaoxuan Yang, Qingsheng Xue, Guorong Tao, Buwei Yu
BACKGROUND: Sevoflurane is the most widely used inhalational anesthetic in pediatric medicine. Despite this, sevoflurane has been reported to exert potentially neurotoxic effects on the developing brain. Clinical interventions and treatments for these effects are limited. Tanshinone IIA (Tan IIA), extracted from Salvia miltiorrhiza (Danshen), has been documented to alleviate cognitive decline in traditional applications. Therefore, we hypothesized that preadministration of Tan IIA may attenuate sevoflurane-induced neurotoxicity, suggesting that Tan IIA is a new and promising drug capable of counteracting the effects of cognitive dysfunction produced by general anesthetics...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319126/effects-of-sevoflurane-and-clonidine-on-acid-base-status-and-long-term-emotional-and-cognitive-outcomes-in-spontaneously-breathing-rat-pups
#7
Nicole Almenrader, Paola Colucci, Valentina De Castro, Daniela Valeri, Maura Palmery, Viviana Trezza, Patrizia Campolongo
BACKGROUND: Numerous experiments in rodents suggest a causative link between exposure to general anaesthetics during brain growth spurt and poor long-lasting neurological outcomes. Many of these studies have been questioned with regard of their translational value, mainly because of extremely long anaesthesia exposure. Therefore, the aim of the present study was to assess the impact of a short sevoflurane anaesthesia, alone or combined with clonidine treatment, on respiratory function in spontaneously breathing rat pups and overall effects on long-lasting emotional and cognitive functions...
2017: PloS One
https://www.readbyqxmd.com/read/28318835/improvement-in-mismatch-negativity-generation-during-d-serine-treatment-in-schizophrenia-correlation-with-symptoms
#8
Joshua T Kantrowitz, Michael L Epstein, Migyung Lee, Nayla Lehrfeld, Karen A Nolan, Constance Shope, Eva Petkova, Gail Silipo, Daniel C Javitt
BACKGROUND: Deficits in N-methyl-d-aspartate-type (NMDAR) function contribute to symptoms and cognitive dysfunction in schizophrenia. The efficacy of NMDAR agonists in the treatment of persistent symptoms of schizophrenia has been variable, potentially reflecting limitations in functional target engagement. We recently demonstrated significant improvement in auditory mismatch negativity (MMN) with once-weekly treatment with d-serine, a naturally occurring NMDAR glycine-site agonist. This study investigates effects of continuous (daily) NMDAR agonists in schizophrenia/schizoaffective disorder...
March 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28317646/clinical-validity-of-delayed-recall-tests-as-a-gateway-biomarker-for-alzheimer-s-disease-in-the-context-of-a-structured-5-phase-development-framework
#9
REVIEW
Chiara Cerami, Bruno Dubois, Marina Boccardi, Andreas U Monsch, Jean Francois Demonet, Stefano F Cappa
Although Alzheimer's disease criteria promote the use of biomarkers, their maturity in clinical routine still needs to be assessed. In the light of the oncology framework, we conducted a literature review on measures used to assess delayed recall impairment due to medial temporal lobe dysfunction (i.e., free and cued word list recall tests). Ample evidence is available for phases 1 (rationale for use), 2 (discriminative ability), and 3 (early detection ability) for many of the tests in routine use. Evidence about phase 4 (performance in real world) and phase 5 (quantify impact and costs) is yet to come...
April 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28317485/defective-insulin-signalling-mediated-by-inflammation-connects-obesity-to-alzheimer-disease-relevant-pharmacological-therapies-and-preventive-dietary-interventions
#10
Arantxa Rodriguez-Casado, Adolfo Toledano-Díaz, Adolfo Toledano
Recent evidence suggests that obesity, besides being a risk factor for cardiovascular events, also increases the risk of Alzheimer's disease. Insulin resistance is common in all cases of obesity and appears to be the linkage between both diseases. Obesity, often associated with excessive fat and sugar intake, represents a preclinical stage toward insulin resistance during which nutrition intervention is likely to have maximum effect. In this way, healthy lifestyles lifetime to prevent obesity-related modifiable risk factors such as inflammation, oxidative stress and metabolic disorders could be simultaneously beneficial for preserving cognition and controlling the Alzheimer's...
March 16, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28317003/peri-operative-inflammatory-cytokines-in-plasma-of-the-elderly-correlate-in-prospective-study-with-postoperative-changes-in-cognitive-test-scores
#11
R Kline, E Wong, M Haile, S Didehvar, S Farber, A Sacks, E Pirraglia, M J de Leon, A Bekker
Increasingly, postoperative cognitive dysfunction (POCD) is recognized as a complication after surgery in the elderly; but it's etiology remains unclear. Here we examine changes in cytokine levels during both the pre-operative and postoperative period, comparing them with long term variation in cognitive test scores. Forty-one patients aged 65 and older undergoing major surgery with general anesthesia were recruited after written consent in this IRB approved study. Thirty went on to complete this prospective, non-interven-tional and non-randomized study...
August 2016: Int J Anesthesiol Res
https://www.readbyqxmd.com/read/28316319/epileptic-spasms-in-paediatric-post-traumatic-epilepsy-at-a-tertiary-referral-centre
#12
Jun T Park, Harry T Chugani
To recognize epileptic spasms (ES) as a seizure type after traumatic brain injury (TBI), accidental or non-accidental, in infants and children. In the process, we aim to gain some insight into the mechanisms of epileptogenesis in ES. A retrospective electronic chart review was performed at the Children's Hospital of Michigan from 2002 to 2012. Electronic charts of 321 patients were reviewed for evidence of post-traumatic epilepsy. Various clinical variables were collected including age at TBI, mechanism of trauma, severity of brain injury, electroencephalography/neuroimaging data, and seizure semiology...
March 17, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28315610/sensory-processing-in-huntington-s-disease
#13
Ana Mirallave, Merche Morales, Christopher Cabib, Esteban J Muñoz, Pilar Santacruz, Xavier Gasull, Josep Valls-Sole
OBJECTIVE: An intriguing electrophysiological feature of patients with Huntington's disease (HD) is the delayed latency and decreased amplitude of somatosensory long-latency evoked potentials (LLeps). We investigated whether such dysfunction was associated with delayed conscious perception of the sensory stimulus. METHODS: Sixteen HD patients and 16 control subjects faced a computer screen showing the Libet's clock (Libet et al., 1983). In Rest trials, subjects had to memorize the position of the clock handle at perception of either electrical or thermal stimuli (AW)...
February 14, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28315336/streptozotocin-produces-oxidative-stress-inflammation-and-decreases-bdnf-concentrations-to-induce-apoptosis-of-rin5f-cells-and-type-2-diabetes-mellitus-in-wistar-rats
#14
Siresha Bathina, Nanduri Srinivas, Undurti N Das
BACKGROUND: Neurodegenerative disorders, such as deficits in learning, memory and cognition and Alzheimer's disease are associated with diabetes mellitus. Brain-derived neurotrophic factor (BDNF) is a neurotrophic factor and is known to possess anti-obesity, anti-diabetic actions and is believed to have a role in memory and Alzheimer's disease. OBJECTIVE: To investigate whether STZ can reduce BDNF production by rat insulinoma (RIN5F) cells in vitro and decrease BDNF levels in the pancreas, liver and brain in vivo...
March 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28314445/where-does-eeg-come-from-and-what-does-it-mean
#15
REVIEW
Michael X Cohen
Electroencephalography (EEG) has been instrumental in making discoveries about cognition, brain function, and dysfunction. However, where do EEG signals come from and what do they mean? The purpose of this paper is to argue that we know shockingly little about the answer to this question, to highlight what we do know, how important the answers are, and how modern neuroscience technologies that allow us to measure and manipulate neural circuits with high spatiotemporal accuracy might finally bring us some answers...
March 14, 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28314227/reliability-and-validity-of-chinese-version-of-perceived-deficits-questionnaire-for-depression-in-patients-with-mdd
#16
Chuan Shi, Gang Wang, Feng Tian, Xiaolei Han, Sha Sha, Xiaomeng Xing, Xin Yu
Although cognitive symptoms are prevalent and negatively affect psychosocial functioning, they are not commonly assessed in clinical practice, particularly in China. Perceived Deficits Questionnaire for Depression (PDQ-D) provides a subjective measure of cognitive dysfunction. This study aimed to examine the psychometric properties of Chinese version of PDQ-D in patients with MDD. The study sample comprised of 129 patients with MDD and 128 community volunteers. All patients with MDD were assessed with PDQ-D, Sheehan Disability Scale (SDS), Work Productivity and Activity Impairment: Specific Health Problem (WPAI-SPH), Patient Health Questionnaire-9 item (PHQ-9), and Digit Symbol Substitution Test (DSST)...
March 11, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28314104/ginsenoside-re-ameliorates-brain-insulin-resistance-and-cognitive-dysfunction-in-high-fat-diet-induced-c57bl-6-mice
#17
Jong Min Kim, Chang Hyeon Park, Seon Kyeong Park, Tae Wan Seung, Jin Yong Kang, Jeong Su Ha, Du Sang Lee, Uk Lee, Dae Ok Kim, Ho Jin Heo
The ameliorating effects of ginsenoside Re (G Re) on high-fat diet (HFD)-induced insulin resistance in C57BL/6 mice were investigated to assess its physiological function. In the results of behavioral tests, G Re improved cognitive dysfunction on diabetic mice using Y-maze, passive avoidance and Morris water maze tests. G Re also significantly recovered hyperglycemia and fasting blood glucose level. In the results of serum analysis, G Re decreased triglyceride (TG), total cholesterol (TCHO), low density lipoprotein cholesterol (LDLC), glutamic-oxaloacetic transaminase (GOT) and glutamic-pyruvic transaminase (GPT), and increased the ratio of high density lipoprotein cholesterol (HDLC)...
March 17, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28304340/neuroinflammation-and-oxidative-stress-in-psychosis-and-psychosis-risk
#18
REVIEW
Henry Barron, Sina Hafizi, Ana C Andreazza, Romina Mizrahi
Although our understanding of psychotic disorders has advanced substantially in the past few decades, very little has changed in the standard of care for these illnesses since the development of atypical anti-psychotics in the 1990s. Here, we integrate new insights into the pathophysiology with the increasing interest in early detection and prevention. First, we explore the role of N-methyl-d-aspartate receptors in a subpopulation of cortical parvalbumin-containing interneurons (PVIs). Postmortem and preclinical data has implicated these neurons in the positive and negative symptoms, as well as the cognitive dysfunction present in schizophrenia...
March 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28303534/chronic-tobacco-smoking-on-psychopathological-symptoms-impulsivity-and-cognitive-deficits-in-hiv-infected-individuals
#19
Linda Chang, Ahnate Lim, Eric Lau, Daniel Alicata
HIV-infected individuals (HIV+) has 2-3 times the rate of tobacco smoking than the general population, and whether smoking may lead to greater psychiatric symptoms or cognitive deficits remains unclear. We evaluated the independent and combined effects of being HIV+ and chronic tobacco-smoking on impulsivity, psychopathological symptoms and cognition. 104 participants [27 seronegative (SN)-non-Smokers, 26 SN-Smokers, 29 HIV+ non-Smokers, 22 HIV+ Smokers] were assessed for psychopathology symptoms (Symptom Checklist-90, SCL-90), depressive symptoms (Center for Epidemiologic Studies-Depression Scale, CES-D), impulsivity (Barratt Impulsiveness Scale, BIS), decision-making (The Iowa Gambling Task, IGT, and Wisconsin Card Sorting Test, WCST), and cognition (seven neurocognitive domains)...
March 16, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28303465/pharmacotherapy-in-generalized-anxiety-disorder-novel-experimental-medicine-models-and-emerging-drug-targets
#20
REVIEW
David S Baldwin, Ruihua Hou, Robert Gordon, Nathan T M Huneke, Matthew Garner
Many pharmacological and psychological approaches have been found efficacious in patients with generalized anxiety disorder (GAD), but many treatment-seeking patients will not respond and others will relapse despite continuing with interventions that initially had beneficial effects. Other patients will respond but then stop treatment early because of untoward effects such as sexual dysfunction, drowsiness, and weight gain. There is much scope for the development of novel approaches that could have greater overall effectiveness or acceptability than currently available interventions or that have particular effectiveness in specific clinical subgroups...
March 16, 2017: CNS Drugs
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