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https://www.readbyqxmd.com/read/28438578/global-cerebral-ischemia-in-rats-leads-to-amnesiadue-to-selective-neuronal-death-followed-by-astroglial-scar-formationin-the-ca1-layer
#1
Kevin Sadelli, Jean-Claude Stamegna, Stéphane D Girard, Nathalie Baril, Guy Escoffier, Maïna Brus, Antoine D Véron, Michel Khrestchatisky, François S Roman
Global Cerebral Ischemia (GCI) occurs following cardiac arrest or neonatal asphyxia and leads to harmful neurological consequences. In most cases, patients who survive cardiac arrest develop severe cognitive and motor impairments. This study focused on learning and memory deficits associated with brain neuroanatomical reorganization that appears after GCI. The four-vessel occlusion (4VO) model was performed to produce a transient GCI. Hippocampal lesions in ischemic rats were visualized using anatomical Magnetic Resonance Imaging (aMRI)...
April 21, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28435270/relationship-between-hypnosis-and-personality-trait-in-participants-with-high-or-low-hypnotic-susceptibility
#2
Yingchun Zhang, Yunke Wang, Chanchan Shen, Yingying Ye, Si Shen, Bingren Zhang, Jiawei Wang, Wei Chen, Wei Wang
BACKGROUND: The relationship between normal personality and hypnotic susceptibility is important for understanding mental processing and mental disorders, but it is less consistent in normal people or in patients with a psychiatric disorder. We have hypothesized that the correlation exists but varies in individuals with different levels of hypnotizability. PARTICIPANTS AND METHODS: We invited 72 individuals with high (HIGH group) and 47 individuals with low (LOW group) hypnotic susceptibilities to undertake tests of NEO-PI-R and the Stanford Hypnotic Susceptibility Scale, Form C (SHSSC)...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28433970/simultaneous-transient-global-amnesia-and-right-mca-stroke-after-valsalva-manoeuvre
#3
Ariel Fernando Mariaca, Jose Manuel Valdueza, Christian Gaebel, Manuel Gomez-Choco
A 61-year-old man suffered an episode of transient confusion and anterograde amnesia after a Valsalva-related manoeuvre. The MRI diffusion weighted imaging (DWI) sequences showed a left hippocampal and two right parietal lesions that were deemed as acute. The MR angiography disclosed a high-grade stenosis in the right middle cerebral artery as was described by a transcranial colour-coded ultrasound as well. Ultrasound investigation of the jugular veins showed a right jugular venous reflux after a Valsalva manoeuvre...
April 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28431035/medical-symptom-validity-test-performance-following-moderate-severe-traumatic-brain-injury-expectations-based-on-orientation-log-classification
#4
Stephen N Macciocchi, Ronald T Seel, Angela Yi, Sarah Small
Objective: This study examined performance on the Medical Symptom Validity test (MSVT) during acute rehabilitation for moderate-severe traumatic brain injury (TBI) stratified by Orientation Log (O-Log) scores. Method: Participants were 77 prospectively enrolled persons who sustained moderate-severe TBI and were acutely hospitalized secondary to the cognitive, medical and physical sequelae of their TBI. Participants were administered neuropsychological metrics, the O-Log and the MSVT a mean of 44 days post injury...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28430846/a-case-of-bariatric-surgery-related-wernicke-korsakoff-syndrome-with-persisting-anterograde-amnesia
#5
Philip Gerard Gasquoine
Objective: To describe the theoretical and clinical implications of the neuropsychological evaluation of a case of bariatric surgery-related Wernicke-Korsakoff syndrome. Method: The patient was a 37-year old, female, bilingual, bachelor's degree educated, Mexican American public relations consultant without preexisting psychiatric, neurological, or substance abuse history. Recovery from laparoscopic sleeve gastrectomy surgery for morbid obesity was complicated by intraabdominal abscess, multibacterial infection, and prolonged nausea and vomiting...
April 20, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28412329/comparison-of-pro-amnesic-efficacy-of-scopolamine-biperiden-and-phencyclidine-by-using-passive-avoidance-task-in-cd-1-mice
#6
Natalia Malikowska, Kinga Sałat, Adrian Podkowa
INTRODUCTION: Memory disorders accompany numerous diseases and therapies, and this is becoming a growing medical issue worldwide. Currently, various animal models of memory impairments are available; however, many of them require high financial outlay and/or are time-consuming. A simple way to achieve an efficient behavioral model of cognitive disorders is to inject defined drug that has pro-amnesic properties. Since the involvement of cholinergic and glutamatergic neurotransmission in cognition is well established, the utilization of a nonselective muscarinic receptor antagonist, scopolamine (SCOP), a selective M1 muscarinic receptor antagonist, biperiden (BIP), and a non-competitive N-methyl-d-aspartate (NMDA) receptor antagonist, phencyclidine (PCP) seems to be reliable tools to induce amnesia...
April 13, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28412304/synergistic-effect-between-d-ap5-and-muscimol-in-the-nucleus-accumbens-shell-on-memory-consolidation-deficit-in-adult-male-wistar-rats-an-isobologram-analysis
#7
Mohammad Nasehi, Elaheh Ostadi, Fatemeh Khakpai, Mohaddeseh Ebrahimi-Ghiri, Mohammad-Reza Zarrindast
The nucleus accumbens (NAc) glutamatergic and GABAergic systems are involved in memory processes. This study was investigated the involvement of NAc shell GABAergic system on D-AP5 induced memory consolidation deficit. The elevated plus-maze (EPM) test-retest paradigm was employed to assess memory in adult male Wistar rats. The results indicated that post-training intra-NAc shell injection of bicuculline (GABAA receptor antagonist) did not alter emotional memory consolidation. However, post-training intra-NAc shell microinjection of muscimol (GABAA receptor agonist, 0...
April 12, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28409114/clinical-and-neuropsychological-changes-after-the-disappearance-of-seizures-in-a-case-of-transient-epileptic-amnesia
#8
Masanori Sekimoto, Reimi Muramatsu, Masaaki Kato, Teiichi Onuma
We encountered a female patient with late-onset temporal lobe epilepsy who presented with transient amnesia as the sole ictal manifestation, an accelerated rate of forgetting daily life events, and a retrograde memory deficit. We describe the memory function of the patient both before and after the administration of antiseizure medication. After the patient's seizures were controlled with antiseizure drugs, her neuropsychological memory performance scores showed improvement. We presumed that the disappearance of seizures was associated with a decrease in the accelerated rate of forgetting medication...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28405991/bilateral-reversible-diffusion-weighted-mri-abnormalities-in-transient-global-amnesia
#9
L Vinitha, George Jacob, P T Gourisankar
No abstract text is available yet for this article.
December 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28390517/neuropsychological-evaluation-in-traumatic-brain-injury
#10
REVIEW
Jason R Soble, Edan A Critchfield, Justin J F O'Rourke
Clinical neuropsychology is a subspecialty of professional psychology that is concerned with the scientific study and clinical application of brain-behavior relationships. Broadly defined, a neuropsychological evaluation is a flexible clinical tool that involves integration of objective, psychometric test data along with various other sources of clinical information to comprehensively elucidate the cognitive, behavioral, and emotional sequelae after traumatic brain injury (TBI). In addition to characterizing TBI sequelae, evidenced-based neuropsychological assessment can contribute to TBI patient care by aiding with prognostic assessment, measuring interval change/recovery over time (eg, resolution of posttraumatic amnesia), informing and implementing rehabilitation strategies, and evaluating the effectiveness of interventions...
May 2017: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/28388214/pta-scale-for-children-aged-4-to-7-years-selecting-developmentally-valid-and-reliable-items
#11
Suncica Lah, Pamela David, Hayley Donohue, Adrienne Epps, Robyn Tate, Naomi Brookes
The aim of this study was to select developmentally valid and reliable items for inclusion in criterion-referenced (pass > 90%) posttraumatic amnesia (PTA) scale for children aged 4 to 7 years in a prospective cohort study. Fifty-two typically developing children (26 male/26 female) aged 4 to 7 years were administered a set of 10 items (5 orientation, 5 memory) over 3-4 days. The total score obtained on the set of 10 items had poor developmental validity and test-retest reliability. Nevertheless, individual item analysis identified five items (three orientation and two memory items) that were consistently passed by >90% of the children on each day of testing...
April 7, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28387552/predicting-recovery-patterns-after-sport-related-concussion
#12
Elizabeth F Teel, Stephen W Marshall, Viswanathan Shankar, Michael McCrea, Kevin M Guskiewicz
CONTEXT: Clinicians sometimes treat concussed individuals who have amnesia, loss of consciousness (LOC), a concussion history, or certain symptom types more conservatively, but it is unclear whether recovery patterns differ in individuals with these characteristics. OBJECTIVE: To determine whether (1) amnesia, LOC, and concussion history influence the acute recovery of symptoms, cognition, and balance; and (2) cognition and balance are influenced by acute symptom type...
March 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28385102/introduction-of-the-abbreviated-westmead-post-traumatic-amnesia-scale-and-impact-on-length-of-stay
#13
C E Watson, E A Clous, M Jaeger, S K D'Amours
BACKGROUND AND AIMS: Mild traumatic brain injury is a common presentation to Emergency Departments. Early identification of patients with cognitive deficits and provision of discharge advice are important. The Abbreviated Westmead Post-traumatic Amnesia Scale provides an early and efficient assessment of post-traumatic amnesia for patients with mild traumatic brain injuries, compared with the previously used assessment, the Modified Oxford Post-traumatic Scale. MATERIAL AND METHODS: This retrospective cohort study reviewed 270 patients with mild traumatic brain injury assessed for post-traumatic amnesia over a 2-year period between February 2011 and February 2013...
April 1, 2017: Scandinavian Journal of Surgery: SJS
https://www.readbyqxmd.com/read/28375725/memory-reconsolidation-interference-as-an-emerging-treatment-for-emotional-disorders-strengths-limitations-challenges-and-opportunities
#14
Tom Beckers, Merel Kindt
Experimental research on emotional memory reconsolidation interference, or the induction of amnesia for previously established emotional memory, has a long tradition, but the potential of that research for the development of novel interventions to treat psychological disorders has been recognized only recently. Here we provide an overview of basic research and clinical studies on emotional memory reconsolidation interference. We point out specific advantages of interventions based on memory reconsolidation interference over traditional treatment for emotional disorders...
March 27, 2017: Annual Review of Clinical Psychology
https://www.readbyqxmd.com/read/28369215/focal-ca3-hippocampal-subfield-atrophy-following-lgi1-vgkc-complex-antibody-limbic-encephalitis
#15
Thomas D Miller, Trevor T-J Chong, Anne M Aimola Davies, Tammy W C Ng, Michael R Johnson, Sarosh R Irani, Angela Vincent, Masud Husain, Saiju Jacob, Paul Maddison, Christopher Kennard, Penny A Gowland, Clive R Rosenthal
Magnetic resonance imaging has linked chronic voltage-gated potassium channel (VGKC) complex antibody-mediated limbic encephalitis with generalized hippocampal atrophy. However, autoantibodies bind to specific rodent hippocampal subfields. Here, human hippocampal subfield (subiculum, cornu ammonis 1-3, and dentate gyrus) targets of immunomodulation-treated LGI1 VGKC-complex antibody-mediated limbic encephalitis were investigated using in vivo ultra-high resolution (0.39 × 0.39 × 1.0 mm3) 7.0 T magnetic resonance imaging [n = 18 patients, 17 patients (94%) positive for LGI1 antibody and one patient negative for LGI1/CASPR2 but positive for VGKC-complex antibodies, mean age: 64...
March 28, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28367669/a-case-report-non-alcoholic-wernicke-encephalopathy-associated-with-polyneuropathy
#16
Hudong Liang, Lan Wu, Ling-Ling Liu, Jinming Han, Jie Zhu, Tao Jin
We report a rare case of non-alcoholic Wernicke encephalopathy (WE) with polyneuropathy. A 24-year-old woman who had recently served a 4-month prison sentence and underwent a short period of dieting manifested slow response, weakness, language disorder and amnesia. Brain magnetic resonance imaging (MRI) revealed typical lesions of WE. Examination of nerve conduction velocity revealed sensory-motor axonal polyneuropathy. The patient was immediately treated with thiamine. Neurological symptoms were alleviated in a few days and abnormal signals were markedly decreased in a follow-up MRI 1 week later...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28366339/prevalence-of-obstructive-sleep-apnea-syndrome-in-a-population-of-patients-with-transient-global-amnesia
#17
L Buratti, C Petrelli, E Potente, A Plutino, G Viticchi, L Falsetti, L Provinciali, M Silvestrini
OBJECTIVE: The etiology of transient global amnesia (TGA) is largely undetermined. The aim of this study was to investigate whether the prevalence of obstructive sleep apnea syndrome (OSAS), a condition associated with subtle changes in brain structures involved in memory processes, increases in subjects who have previously experienced a TGA episode. METHODS: Twenty-nine patients who had had a TGA episode were included. A case-control model was used, matching cases with controls by sex, age, and body mass index category...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28356690/sedation-in-oral-and-maxillofacial-day-care-surgery-a-comparative-study-between-intravenous-dexmedetomidine-and-midazolam
#18
Niranjan Mishra, Krishna Gopal Birmiwal, Nibedita Pani, Subhrajit Raut, Gaurav Sharma, Krushna Chandra Rath
INTRODUCTION: Sedation is an important component of day care oral and maxillofacial surgical procedures under local anesthesia. Although various sedative drugs in different regimens have been used for sedation, an ideal agent and regimen are yet to be established. AIM: The aim of this study is to compare the efficacy of intravenous (IV) dexmedetomidine and midazolam as a sedative agent for day care oral and maxillofacial surgical procedures. SETTINGS: The study was conducted in the Department of Oral and Maxillofacial Surgery, SCB Dental College and Hospital, Cuttack, Odisha, India...
July 2016: National Journal of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28350252/long-term-cognitive-and-neuroanatomical-stability-in-patients-with-anoxic-amnesia-a-case-report
#19
Kacie L Wright, C Brock Kirwan, Shawn D Gale, Ashley J Levan, Ramona O Hopkins
BACKGROUND: Anoxia can result in selective hippocampal damage with associated impairments in declarative memory. Whilst memory impairments and brain structures are thought to be stable, there are little data regarding the effects of ageing or change over time in patients with amnesia from anoxic brain injury. METHODS: To assess change over time, we compared structural magnetic resonance imaging (MRI) with data obtained over ten years previously in two well-characterized patients with amnesia (JRW and RS) who experienced an anoxic brain injury...
March 28, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28348911/a-case-of-persistent-generalized-retrograde-autobiographical-amnesia-subsequent-to-the-great-east-japan-earthquake-in-2011
#20
Yuji Odagaki
Functional retrograde autobiographical amnesia is often associated with physical and/or psychological trauma. On 11 March 2011, the largest earthquake on record in Japan took place, and subsequent huge tsunami devastated the Pacific coast of northern Japan. This case report describes a patient suffering from retrograde episodic-autobiographical amnesia for whole life, persisting for even more than five years after the disaster. A Japanese man, presumably in his 40s, got police protection in April 2016 but was unable to respond to question about his own name...
2017: Case Reports in Psychiatry
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