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https://www.readbyqxmd.com/read/28645546/post-sepsis-cognitive-impairment-and-associated-risk-factors-a-systematic-review
#1
REVIEW
Allan J C Calsavara, Vandack Nobre, Tatiana Barichello, Antonio L Teixeira
INTRODUCTION: Post-sepsis cognitive impairment is one of the major sequelae observed in survivors of sepsis. This cognitive impairment can be global or may affect specific domains. A better understanding of these deficits and associated risk factors could influence the care of patients with sepsis. OBJECTIVE: To perform a systematic review to investigate the presence of cognitive impairment and its associated risk factors among patients who survived sepsis. METHODS: The search was conducted in MEDLINE (1966 to March 2017) and EMBASE (1988 to March 2017)...
June 20, 2017: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/28645200/prognostic-awareness-prognostic-communication-and-cognitive-function-in-patients-with-malignant-glioma
#2
Eli L Diamond, Holly G Prigerson, Denise C Correa, Anne Reiner, Katherine Panageas, Maria Kryza-Lacombe, Justin Buthorn, Elizabeth C Neil, Alex M Miller, Lisa M DeAngelis, Allison J Applebaum
Background: Malignant glioma (MG) is a devastating neuro-oncologic disease with almost invariably poor prognosis. Prognostic awareness (PA) is the awareness of incurable disease and shortened life-expectancy (LE). Accurate PA is associated with favorable psychological outcomes at the end-of-life (EOL) for patients with cancer, however little is known about PA or prognostic communication in MG. Moreover, research has yet to evaluate the impact of cognitive impairment on PA and preferred forms of communication...
June 22, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28643948/investigating-the-separate-and-interactive-associations-of-trauma-and-depression-on-brain-structure-implications-for-cognition-and-aging
#3
Aimee J Karstens, Olusola Ajilore, Leah H Rubin, Shaolin Yang, Aifeng Zhang, Alex Leow, Anand Kumar, Melissa Lamar
OBJECTIVE: Trauma and depression are associated with brain structural alterations; their combined effects on these outcomes are unclear. We previously reported a negative effect of trauma, independent of depression, on verbal learning and memory; less is known about underlying structural associates. We investigated separate and interactive associations of trauma and depression on brain structure. METHODS: Adults aged 30-89 (N = 203) evaluated for depression (D+) and trauma history (T+) using structured clinical interviews were divided into 53 D+T+, 42 D+T-, 50 D-T+, and 58 D-T-...
June 23, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28642002/development-of-geriatric-mental-health-learning-objectives-for-medical-students-a-response-to-the-institute-of-medicine-2012-report
#4
Susan W Lehmann, William B Brooks, Dennis Popeo, Kirsten M Wilkins, Mary C Blazek
America is aging as the population of older adults increases. The shortage of geriatric mental health specialists means that most geriatric mental healthcare will be provided by physicians who do not have specialty training in geriatrics. The Institute of Medicine Report of 2012 highlighted the urgent need for development of national competencies and curricula in geriatric mental health for all clinicians. Virtually all physicians can expect to treat older patients with mental health symptoms, yet currently there are no widely accepted learning objectives in geriatric mental health specific for medical students...
May 12, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28640450/network-supervision-of-adult-experience-and-learning-dependent-sensory-cortical-plasticity
#5
David T Blake
The brain is capable of remodeling throughout life. The sensory cortices provide a useful preparation for studying neuroplasticity both during development and thereafter. In adulthood, sensory cortices change in the cortical area activated by behaviorally relevant stimuli, by the strength of response within that activated area, and by the temporal profiles of those responses. Evidence supports forms of unsupervised, reinforcement, and fully supervised network learning rules. Studies on experience-dependent plasticity have mostly not controlled for learning, and they find support for unsupervised learning mechanisms...
June 18, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28638927/-involvement-of-aquaporin-4-in-synaptic-plasticity-learning-and-memory
#6
Xin Wu, Jian-Feng Gao
Aquaporin-4 (AQP-4) is the predominant water channel in the central nervous system (CNS) and primarily expressed in astrocytes. Astrocytes have been generally believed to play important roles in regulating synaptic plasticity and information processing. However, the role of AQP-4 in regulating synaptic plasticity, learning and memory, cognitive function is only beginning to be investigated. It is well known that synaptic plasticity is the prime candidate for mediating of learning and memory. Long term potentiation (LTP) and long term depression (LTD) are two forms of synaptic plasticity, and they share some but not all the properties and mechanisms...
June 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28637146/instilling-positive-beliefs-about-disabilities-pilot-testing-a-novel-experiential-learning-activity-for-rehabilitation-students
#7
Arielle M Silverman, Jennifer S Pitonyak, Ian K Nelson, Patricia N Matsuda, Deborah Kartin, Ivan R Molton
PURPOSE: To develop and test a novel impairment simulation activity to teach beginning rehabilitation students how people adapt to physical impairments. METHODS: Masters of Occupational Therapy students (n = 14) and Doctor of Physical Therapy students (n = 18) completed the study during the first month of their program. Students were randomized to the experimental or control learning activity. Experimental students learned to perform simple tasks while simulating paraplegia and hemiplegia...
February 25, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28635417/suicide-attempts-among-individuals-with-specific-learning-disorders-an-underrecognized-issue
#8
Esme Fuller-Thomson, Samara Z Carroll, Wook Yang
Several studies have linked specific learning disorders (SLDs) with suicidal ideation, but less is known about the disorders' association with suicide attempts. This gap in the literature is addressed via the 2012 nationally representative Canadian Community Health Survey ( n = 21,744). The prevalence of lifetime suicide attempts among those with an SLD was much higher than those without (11.1% vs. 2.7%, p < .001). In comparison with their peers without SLDs, adults with SLDs had 46% higher odds of having ever attempted suicide, even after adjusting for most known risk factors (e...
June 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/28633291/p2x7-receptors-drive-spine-synapse-plasticity-in-the-learned-helplessness-model-of-depression
#9
L Otrokocsi, Á Kittel, B Sperlágh
Background: Major depressive disorder is characterized by structural and functional abnormalities of cortical and limbic brain areas, including a decrease in spine synapse number in the dentate gyrus (DG) of the hippocampus. Recent studies highlighted that both genetic and pharmacological invalidation of the purinergic P2X7 receptor (P2rx7) leads to antidepressant-like phenotype in animal experiments, however, the impact of P2rx7 on depression-related structural changes in the hippocampus is not clarified yet...
June 13, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28633060/childhood-adversity-and-cognitive-functioning-in-patients-with-major-depression
#10
Katharina Dannehl, Winfried Rief, Frank Euteneuer
OBJECTIVE: Major depression is often accompanied by deficits in cognitive functioning and lowered executive functions. However, not all depressed patients show impairments in these domains. The aim of this study was to examine whether different kinds of childhood adversity might account for cognitive deficits in patients with major depression. METHODS: Ninety-one patients with major depression (DSM-IV) and 40 healthy controls completed a neuropsychological test battery assessing memory, processing speed and executive functions...
June 17, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28632905/the-malleable-brain-plasticity-of-neural-circuits-and-behavior-a-review-from-students-to-students
#11
REVIEW
Natascha Schaefer, Carola Rotermund, Eva-Maria Blumrich, Mychael V Lourenco, Pooja Joshi, Regina U Hegemann, Sumit Jamwal, Nilufar Ali, Ezra Michelet García Romero, Sorabh Sharma, Shampa Ghosh, Jitendra K Sinha, Hannah Loke, Vishal Jain, Katarzyna Lepeta, Ahmad Salamian, Mahima Sharma, Mojtaba Golpich, Katarzyna Nawrotek, Ramesh K Paidi, Sheila M Shahidzadeh, Tetsade Piermartiri, Elham Amini, Veronica Pastor, Yvette Wilson, Philip A Adeniyi, Ashok K Datusalia, Benham Vafadari, Vedangana Saini, Edna Suárez-Pozos, Neetu Kushwah, Paula Fontanet, Anthony J Turner
One of the most intriguing features of the brain is its ability to be malleable, allowing it to adapt continually to changes in the environment. Specific neuronal activity patterns drive long-lasting increases or decreases in the strength of synaptic connections, referred to as long-term potentiation (LTP) and long-term depression (LTD) respectively. Such phenomena have been described in a variety of model organisms, which are used to study molecular, structural, and functional aspects of synaptic plasticity...
June 20, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28631873/roles-of-afadin-in-functional-differentiations-of-hippocampal-mossy-fiber-synapse
#12
Xiaoqi Geng, Tomohiko Maruo, Kenji Mandai, Irwan Supriyanto, Muneaki Miyata, Shotaro Sakakibara, Akira Mizoguchi, Yoshimi Takai, Masahiro Mori
A hippocampal mossy fiber synapse has a complex structure and is implicated in learning and memory. In this synapse, the mossy fiber boutons attach to the dendritic shaft by puncta adherentia junctions and wrap around a multiply-branched spine, forming synaptic junctions. We have recently shown using transmission electron microscopy, immunoelectron microscopy and serial block face-scanning electron microscopy that atypical puncta adherentia junctions are formed in the afadin-deficient mossy fiber synapse and that the complexity of postsynaptic spines and mossy fiber boutons, the number of spine heads, the area of postsynaptic densities and the density of synaptic vesicles docked to active zones are decreased in the afadin-deficient synapse...
June 20, 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/28629965/%C3%A2-cortical-atrophy-is-associated-with-accelerated-cognitive-decline-in-mild-cognitive-impairment-with-subsyndromal-depression
#13
Mitzi M Gonzales, Philip S Insel, Craig Nelson, Duygu Tosun, Niklas Mattsson, Susanne G Mueller, Simona Sacuiu, David Bickford, Michael W Weiner, R Scott Mackin
OBJECTIVES: To investigate the association between cognitive decline and cortical atrophy in individuals with mild cognitive impairment (MCI) and chronic subsyndromal symptoms of depression (SSD) over a 4-year period. DESIGN: Prospective cohort study. SETTING: Multicenter, clinic-based. PARTICIPANTS: Within the Alzheimer's Disease Neuroimaging Initiative repository, the Neuropsychiatric Inventory was used to identify individuals with MCI and stable endorsement (SSD group N = 32) or no endorsement (non-SSD group N = 69) of depressive symptoms across time points...
April 20, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28629481/depression-inflammation-and-memory-loss-among-mexican-americans-analysis-of-the-hable-cohort
#14
Leigh A Johnson, Melissa Edwards, Adriana Gamboa, James Hall, Michelle Robinson, Sid E O'Bryant
BACKGROUND: This study explored the combined impact of depression and inflammation on memory functioning among Mexican-American adults and elders. METHODS: Data were analyzed from 381 participants of the Health and Aging Brain study among Latino Elders (HABLE). Fasting serum samples were collected and assayed in duplicate using electrochemiluminesce on the SECTOR Imager 2400A from Meso Scale Discovery. Positive DepE (depression endophenotype) was codified as any score >1 on a five-point scale based on the GDS-30...
June 20, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28629225/cortical-plasticity-in-depression
#15
Mariagiovanna Cantone, Alessia Bramanti, Giuseppe Lanza, Manuela Pennisi, Placido Bramanti, Giovanni Pennisi, Rita Bella
Neural plasticity is considered the neurophysiological correlate of learning and memory, although several studies have also noted that it plays crucial roles in a number of neurological and psychiatric diseases. Indeed, impaired brain plasticity may be one of the pathophysiological mechanisms that underlies both cognitive decline and major depression. Moreover, a degree of cognitive impairment is frequently observed throughout the clinical spectrum of mood disorders, and the relationship between depression and cognition is often bidirectional...
May 2017: ASN Neuro
https://www.readbyqxmd.com/read/28628388/coordination-of-ampa-receptor-trafficking-by-rab-small-gtpases
#16
Angelika Hausser, Katalin Schlett
Synaptic connections in the brain are continuously weakened or strengthened in response to changes in neuronal activity. This process, known as synaptic plasticity, is the cellular basis for learning and memory, and is thought to be altered in several neuronal disorders. An important aspect of synaptic plasticity is the tightly controlled trafficking and synaptic targeting of the AMPA-type glutamate receptors, which are the major mediators of fast excitatory transmission in the brain. This review addresses the role of Rab GTPases in AMPA receptor trafficking in neurons under basal conditions and during activity-induced synaptic plasticity, especially during long-term potentiation (LTP) and long-term depression (LTD)...
June 19, 2017: Small GTPases
https://www.readbyqxmd.com/read/28624435/revisiting-the-flip-side-long-term-depression-of-synaptic-efficacy-in-the-hippocampus
#17
REVIEW
Cristina Pinar, Christine J Fontaine, Juan Triviño-Paredes, Carina P Lottenberg, Joana Gil-Mohapel, Brian R Christie
Synaptic plasticity is widely regarded as a putative biological substrate for learning and memory processes. While both decreases and increases in synaptic strength are seen as playing a role in learning and memory, long-term depression (LTD) of synaptic efficacy has received far less attention than its counterpart long-term potentiation (LTP). Never-the-less, LTD at synapses can play an important role in increasing computational flexibility in neural networks. In addition, like learning and memory processes, the magnitude of LTD can be modulated by factors that include stress and sex hormones, neurotrophic support, learning environments, and age...
June 14, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28620824/l-3-n-butylphthalide-activates-akt-mtor-signaling-inhibits-neuronal-apoptosis-and-autophagy-and-improves-cognitive-impairment-in-mice-with-repeated-cerebral-ischemia-reperfusion-injury
#18
Jing Xu, Yaping Huai, Nan Meng, Yanhong Dong, Zhijuan Liu, Qianqian Qi, Ming Hu, Mingyue Fan, Wei Jin, Peiyuan Lv
L-3-n-Butylphthalide (L-NBP) exerts neuroprotective effects in animal models of cerebral ischemia, but its potential benefits in repeated cerebral ischemia-reperfusion (RCIR) injury remain unknown. We investigated the effect of L-NBP on cognitive impairment induced by RCIR in mice. Male C57Bl/6 mice received sham surgery or bilateral common carotid artery occlusion (3 times, 20 min each) and were orally administered preoperative L-NBP (30 mg/kg/day, 7 days), postoperative L-NBP (30 or 60 mg/kg/day, 28 days) or postoperative vehicle (28 days)...
June 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28620314/orexin-system-the-key-for-a-healthy-life
#19
REVIEW
Sergio Chieffi, Marco Carotenuto, Vincenzo Monda, Anna Valenzano, Ines Villano, Francesco Precenzano, Domenico Tafuri, Monica Salerno, Nicola Filippi, Francesco Nuccio, Maria Ruberto, Vincenzo De Luca, Luigi Cipolloni, Giuseppe Cibelli, Maria P Mollica, Diego Iacono, Ersilia Nigro, Marcellino Monda, Giovanni Messina, Antonietta Messina
The orexin-A/hypocretin-1 and orexin-B/hypocretin-2 are neuropeptides synthesized by a cluster of neurons in the lateral hypothalamus and perifornical area. Orexin neurons receive a variety of signals related to environmental, physiological and emotional stimuli, and project broadly to the entire CNS. Orexin neurons are "multi-tasking" neurons regulating a set of vital body functions, including sleep/wake states, feeding behavior, energy homeostasis, reward systems, cognition and mood. Furthermore, a dysfunction of orexinergic system may underlie different pathological conditions...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28617014/real-world-program-evaluation-of-integrated-behavioral-health-care-improving-scientific-rigor
#20
Jennifer S Funderburk, Robyn L Shepardson
INTRODUCTION: Designing systematic, scientifically rigorous program evaluations (PE) is 1 way to contribute to the significant need to build best practices and a stronger evidence base for integrated behavioral health care. However, there are many potential pitfalls when conducting PE in real-world settings, and many clinicians and administrators may be hesitant to engage in PE due to lack of training or resources. Rigorous PE can be achieved feasibly and efficiently. METHOD: This article discusses common challenges that arise when conducting PE in integrated behavioral health care settings and illustrates ways to increase the methodological quality of PE efforts using lessons learned from 2 real-world case examples...
June 2017: Families, Systems & Health: the Journal of Collaborative Family Healthcare
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