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https://www.readbyqxmd.com/read/28097835/cognitive-profiles-of-patients-with-early-detected-and-treated-congenital-hypothyroidism
#1
María L Pardo Campos, Mariel Musso, Ana Keselman, Laura Gruñeiro, Ignacio Bergadá, Ana Chiesa
INTRODUCTION: Children with congenital hypothyroidism (CH) detected by newborn screening and adequately treated may have mild cognitive deficits. OBJECTIVES">To assess the intelligence quotient of children with CH and identify the presence of specific cognitive deficits. POPULATION AND METHODS: A group of 60 children with CH detected by newborn screening, who were aged 9-10 years old and received adequate treatment since their first month of life was selected and compared to a control group of 60 children without CH in the same age range...
February 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28097289/binding-of-cll-subset-4-b-cell-receptor-immunoglobulins-to-viable-human-memory-b-lymphocytes-requires-a-distinctive-igkv-somatic-mutation
#2
Rosa Catera, Yun Liu, Chao Gao, Xiao-Jie Yan, Amanda Magli, Steven L Allen, Jonathan E Kolitz, Kanti R Rai, Charles C Chu, Ten Feizi, Kostas Stamatopoulos, Nicholas Chiorazzi
Amino acid replacement mutations in certain CLL stereotyped B-cell receptor (BCR) immunoglobulins (IGs) at defined positions within antigen-binding sites strongly imply antigen selection. Prime examples of this are CLL subset 4 BCR IGs using IGHV4-34/IGHD5-18/IGHJ6 and IGKV2-30/IGKJ2 rearrangements. Conspicuously and unlike most CLL IGs, subset 4 IGs do not bind apoptotic cells. By testing the (auto)antigenic reactivities of subset 4 IGs toward viable lymphoid-lineage cells and specific autoantigens typically bound by IGHV4-34(+) IGs, we found IGs from both subset 4 and non-subset 4 IGHV4-34-expressing CLL cases bind naïve B cells...
January 12, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28096960/estrogen-agonist-genistein-differentially-influences-the-cognitive-and-motor-disorders-in-an-ovariectomized-animal-model-of-parkinsonism
#3
Elaheh Arbabi, Gholamali Hamidi, Sayyed Alireza Talaei, Mahmoud Salami
OBJECTIVES: Parkinson's disease (PD) is a progressive neurological disorder associated with motor disabilities and cognitive dysfunction as well. Evidence indicates that PD occurs less frequently in women than men, confirming a role for steroid hormones in protection of dopaminergic nigrostriatal neurons. It is reported that soy genistein, an estrogen agonist phytoestrogen, display neuroprotective effects against neuronal death. In this study we evaluated the effect of genistein in animal models of Parkinsonism (P) and Parkinsonism + ovariectomized (OP)...
December 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28096869/short-term-psychiatric-rehabilitation-in-major-depressive-and-bipolar-disorders-neuropsychological-psychosocial-outcomes
#4
Giampaolo Perna, Silvia Daccò, Ferdinando Sacco, Wilma Micieli, Paolo Cavedini, Daniela Caldirola
OBJECTIVE: Our pilot study aims to investigate the efficacy of a Short-Term (4 weeks) Psychiatric Rehabilitation Program (S-T PsyRP), without specific cognitive remediation trainings, on the neuropsychological performance and psychosocial functioning of inpatients with Major Depressive Disorder (MDD) or Bipolar Disorder (BD). Published studies with similar aims are lacking. METHODS: Fifty-three inpatients with MDD and 27 with BD (type I/II) were included. The S-T PsyRP was usually performed as clinical practice at Villa San Benedetto Menni Hospital and included a variety of activities aimed at promoting personal autonomies, interpersonal/social skills, and self-care...
January 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28096851/acetylcholinesterase-inhibitor-improves-learning-and-memory-impairment-induced-by-toxoplasma-gondii-infection
#5
Hossein Mahmoudvand, Vahid Sheibani, Hossein Keshavarz, Saeedeh Shojaee, Khadijeh Esmaeelpour, Naser Ziaali
BACKGROUND: Here, we established the mouse models of chronic toxoplasmosis by T. gondii Tehran strain to provide a good understanding about defining the possible association between T. gondii exposure and learning and memory impairments. Moreover, as secondary objective of the present study, we hypothesized whether administration of an acetylcholinesterase (AChE) inhibitor could reduce learning and memory impairments induced by T. gondii infection. METHODS: Twenty-four male BALB/c mice were used to establishment of latent toxoplasmosis...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28096845/cognitive-impairment-after-sudden-cardiac-arrest
#6
Magdalena Jaszke-Psonka, Magdalena Piegza, Piotr Ścisło, Robert Pudlo, Jacek Piegza, Karina Badura-Brzoza, Aleksandra Leksowska, Robert T Hese, Piotr W Gorczyca
AIM: To evaluate the incidence and severity of the impairment of selected cognitive functions in patients after sudden cardiac arrest (SCA) in comparison to patients after myocardial infarction without SCA and healthy subjects and to analyze the influence of sociodemographic and clinical parameters and the duration of cardiac arrest on the presence and severity of the described disorders. MATERIAL AND METHODS: The study group comprised 30 cardiac arrest survivors, the reference group comprised 31 survivors of myocardial infarction without cardiac arrest, and the control group comprised 30 healthy subjects...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28096499/when-eye-movements-express-memory-for-old-and-new-scenes-in-the-absence-of-awareness-and-independent-of-hippocampus
#7
Christine N Smith, Larry R Squire
Eye movements can reflect memory. For example, participants make fewer fixations and sample fewer regions when viewing old versus new scenes (the repetition effect). It is unclear whether the repetition effect requires that participants have knowledge (awareness) of the old-new status of the scenes or if it can occur independent of knowledge about old-new status. It is also unclear whether the repetition effect is hippocampus-dependent or hippocampus-independent. A complication is that testing conscious memory for the scenes might interfere with the expression of unconscious (unaware), experience-dependent eye movements...
February 2017: Learning & Memory
https://www.readbyqxmd.com/read/28095744/the-effects-of-age-on-the-learning-and-forgetting-of-primacy-middle-and-recency-components-of-a-multi-trial-word-list
#8
Jason W Griffin, Samantha E John, Jason W Adams, Cara A Bussell, Jessica L Saurman, Brandon E Gavett
The serial position effect reveals that recall of a supraspan list of words follows a predictable pattern, whereby words at the beginning (primacy) and end (recency) of a list are recalled more easily than words in the middle. This effect has typically been studied using single list-learning trials, but in neuropsychology, multi-trial list-learning tests are more commonly used. The current study examined trends in learning for primacy, middle, and recency effects across multiple trials in younger and older age cohorts...
January 17, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28095390/hydrogen-sulfide-promotes-learning-and-memory-and-suppresses-proinflammatory-cytokines-in-repetitive-febrile-seizures
#9
Fei Zhuang, Xuhong Zhou, Hong Li, Xiaochun Yang, Zewu Dong, Wendi Zhou, Jian Chen
OBJECTIVE: Hydrogen sulfide (H2S), as a novel gasotransmitter, plays important roles in a number of physiological and pathological processes. Its effectiveness has been demonstrated in different types of brain disorders but not in repetitive febrile seizure (febrile status epilepticus; FSE) models. This study aims to test whether a donor of H2S sodium sulfhydrate (NaHS) is also effective for FSE in rats. METHODS: FSE was induced in rat pups on postnatal day 10 in water at 45...
January 18, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/28095105/regular-latin-dancing-and-health-education-may-improve-cognition-of-late-middle-aged-and-older-latinos
#10
David X Marquez, Robert Wilson, Susan Aguiñaga, Priscilla Vásquez, Louis Fogg, Zhi Yang, JoEllen Wilbur, Susan Hughes, Charles Spanbauer
Disparities exist between Latinos and non-Latino whites in cognitive function. Dance is culturally appropriate and challenges individuals physically and cognitively, yet the impact of regular dancing on cognitive function in older Latinos has not been examined. A two-group pilot trial was employed among inactive, older Latinos. Participants (N = 57) participated in the BAILAMOS(©) dance program or a health education program. Cognitive test scores were converted to z-scores and measures of global cognition and specific domains (executive function, episodic memory, working memory) were derived...
January 17, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/28095010/test-expectancy-and-memory-for-important-information
#11
Catherine D Middlebrooks, Kou Murayama, Alan D Castel
Prior research suggests that learners study and remember information differently depending upon the type of test they expect to later receive. The current experiments investigate how testing expectations impact the study of and memory for valuable information. Participants studied lists of words ranging in value from 1 to 10 points with the goal being to maximize their score on a later memory test. Half of the participants were told to expect a recognition test after each list, whereas the other half were told to expect a recall test...
January 16, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28094952/effect-of-an-enhanced-nose-to-brain-delivery-of-insulin-on-mild-and-progressive-memory-loss-in-the-senescence-accelerated-mouse
#12
Noriyasu Kamei, Misa Tanaka, Hayoung Choi, Nobuyuki Okada, Takamasa Ikeda, Rei Itokazu, Mariko Takeda-Morishita
Insulin is now considered to be a new drug candidate for treating dementias, such as Alzheimer's disease, whose pathologies are linked to insulin resistance in the brain. Our recent work has clarified that a noncovalent strategy involving cell-penetrating peptides (CPPs) can increase the direct transport of insulin from the nasal cavity into the brain parenchyma. The present study aimed to determine whether the brain insulin level increased by intranasal coadministration of insulin with the CPP penetratin has potential for treating dementia...
January 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28093566/estrogen-dependent-association-of-hdac4-with-fear-in-female-mice-and-women-with-ptsd
#13
S A Maddox, V Kilaru, J Shin, T Jovanovic, L M Almli, B G Dias, S D Norrholm, N Fani, V Michopoulos, Z Ding, K N Conneely, E B Binder, K J Ressler, A K Smith
Women are at increased risk of developing post-traumatic stress disorder (PTSD) following a traumatic event. Recent studies suggest that this may be mediated, in part, by circulating estrogen levels. This study evaluated the hypothesis that individual variation in response to estrogen levels contributes to fear regulation and PTSD risk in women. We evaluated DNA methylation from blood of female participants in the Grady Trauma Project and found that serum estradiol levels associates with DNA methylation across the genome...
January 17, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28093479/paired-stimulation-for-spike-timing-dependent-plasticity-in-primate-sensorimotor-cortex
#14
Stephanie C Seeman, Brian J Mogen, Eberhard E Fetz, Steve I Perlmutter
: Classic studies in vitro have described spike-timing dependent plasticity (STDP) at a synapse: the connection from neuron A to neuron B is strengthened (or weakened) when A fires before (or after) B within an optimal time window. Accordingly, more recent in vivo works have demonstrated behavioral effects consistent with an STDP mechanism; however many relied on single-unit recordings. The ability to modify cortical connections becomes useful in the context of injury when connectivity, and associated behavior, is compromised...
January 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28093475/hippocampal-contribution-to-context-encoding-across-development-is-disrupted-following-early-life-adversity
#15
Hilary K Lambert, Margaret A Sheridan, Kelly Sambrook, Maya Rosen, Mary K Askren, Katie A McLaughlin
: Context can drastically influence responses to environmental stimuli. For example, a gunshot should provoke a different response at a public park than a shooting range. Little is known about how contextual processing and neural correlates change across human development or about individual differences related to early environmental experiences. Children (N=60; 8-19 years, 24 exposed to interpersonal violence) completed a context encoding task during fMRI scanning using a delayed match-to-sample design with neutral, happy, and angry facial cues embedded in realistic background scenes...
January 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28093279/obesity-and-insulin-resistance-are-associated-with-reduced-activity-in-core-memory-regions-of-the-brain
#16
Lucy G Cheke, Heidi M Bonnici, Nicola S Clayton, Jon S Simons
Increasing research in animals and humans suggests that obesity may be associated with learning and memory deficits, and in particular with reductions in episodic memory. Rodent models have implicated the hippocampus in obesity-related memory impairments, but the neural mechanisms underlying episodic memory deficits in obese humans remain undetermined. In the present study, lean and obese human participants were scanned using fMRI while completing a What-Where-When episodic memory test (the "Treasure-Hunt Task") that assessed the ability to remember integrated item, spatial, and temporal details of previously encoded complex events...
January 13, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28093254/risperidone-ameliorated-a%C3%AE-1-42-induced-cognitive-and-hippocampal-synaptic-impairments-in-mice
#17
Lingzhi Wu, Xiaowen Feng, Tingting Li, Baojuan Sun, Muhammad Zahid Khan, Ling He
Alzheimer's disease (AD) is a complex neurodegenerative disorder with cognitive impairment and major neuropathologic hallmark of amyloid-beta (Aβ) peptides. Risperidone, an atypical antipsychotic, can improve concentration and cognitive deficit in schizophrenia patients. In this study, behavior tests including Morris Water Maze test, Step-through passive avoidance test, Open Field test, Step-Down test, Hole-Board test and Novel object recognition test were preformed to examine the effect of Risperidone on Aβ1-42-induced cognitive dysfunction in both long-term and short-term memory...
January 13, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28092778/electrocortical-consequences-of-image-processing-the-influence-of-working-memory-load-and-worry
#18
Evan J White, DeMond M Grant
Research suggests that worry precludes emotional processing as well as biases attentional processes. Although there is burgeoning evidence for the relationship between executive functioning and worry, more research in this area is needed. A recent theory suggests one mechanism for the negative effects of worry on neural indicators of attention may be working memory load, however few studies have examined this directly. The goal of the current study was to document the influence of both visual and verbal working memory load and worry on attention allocation during processing of emotional images in a cued image paradigm...
January 10, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28092166/subchronic-metformin-pretreatment-enhances-novel-object-recognition-memory-task-in-forebrain-ischemia-behavioural-molecular-and-electrophysiological-studies
#19
Ghorbangol Ashabi, Alireza Sarkaki, Fariba Khodagholi, Shima Zareh Shahamati, Mahdi Goudarzvand, Yaghoob Farbood, Mohammad Badavi, Leila Khalaj
Metformin exerts its effect via AMP-activated protein kinase (AMPK), which is a key sensor for energy homeostasis that regulates different intracellular pathways. Metformin attenuates oxidative stress and cognitive impairment. In our experiment, rats were divided into 8 groups; some were pretreated with metformin (Met, 200 mg/kg) and (or) the AMPK inhibitor Compound C (CC) for 14 days. On day 14, rats underwent transient forebrain global ischemia. Data indicated that pretreatment of ischemic rats with metformin reduced working memory deficits in a novel object recognition test compared to group with ischemia-reperfusion (I-R) (P < 0...
November 4, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28091572/a-computational-psychiatry-approach-identifies-how-alpha-2a-noradrenergic-agonist-guanfacine-affects-feature-based-reinforcement-learning-in-the-macaque
#20
S A Hassani, M Oemisch, M Balcarras, S Westendorff, S Ardid, M A van der Meer, P Tiesinga, T Womelsdorf
Noradrenaline is believed to support cognitive flexibility through the alpha 2A noradrenergic receptor (a2A-NAR) acting in prefrontal cortex. Enhanced flexibility has been inferred from improved working memory with the a2A-NA agonist Guanfacine. But it has been unclear whether Guanfacine improves specific attention and learning mechanisms beyond working memory, and whether the drug effects can be formalized computationally to allow single subject predictions. We tested and confirmed these suggestions in a case study with a healthy nonhuman primate performing a feature-based reversal learning task evaluating performance using Bayesian and Reinforcement learning models...
January 16, 2017: Scientific Reports
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