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https://www.readbyqxmd.com/read/28797640/a-comprehensive-literature-review-of-chronic-pain-and-memory
#1
REVIEW
Stéphanie Mazza, Maud Frot, Amandine E Rey
Chronic pain patients often complain of their "poor memory" and numerous studies objectively confirmed such difficulties in reporting working memory (WM) and long-term memory (LTM) dysfunctions. This paper provides a comprehensive review of the literature on memory impairment in chronic pain (CP) patients. Twenty-four observational studies evaluating WM or/and LTM in a chronic pain group and a control group were included in this review. Results showed that studies consistently reported a moderate decline, in both WM and LTM performances in CP patients...
August 7, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28795169/chronic-pain-and-chronic-stress-two-sides-of-the-same-coin
#2
Chadi G Abdallah, Paul Geha
Pain and stress share significant conceptual and physiological overlaps. Both phenomena challenge the body's homeostasis and necessitate decision-making to help animals adapt to their environment. In addition, chronic stress and chronic pain share a common behavioral model of failure to extinguish negative memories. Yet, they also have discrepancies such that the final brain endophenotype of posttraumatic stress disorder, depression, and chronic pain appears to be different among the three conditions, and the role of the hypothalamic-pituitary-adrenal axis remains unclear in the physiology of pain...
February 2017: Chronic stress
https://www.readbyqxmd.com/read/28781729/the-modulatory-role-of-orexin-1-receptor-in-ca1-on-orofacial-pain-induced-learning-and-memory-deficits-in-rats
#3
Razieh Kooshki, Mehdi Abbasnejad, Saeed Esmaeili-Mahani, Maryam Raoof
INTRODUCTION: Cognitive impairment is commonly associated with pain. The modulatory role of orexin 1 receptor (OX1R) in pain pathways as well as learning and memory processes is reported in several studies. The current study was designed to investigate the possible role of CA1-hippocampal OX1R on spatial learning and memory of rats following capsaicin-induced orofacial pain. METHODS: Orofacial pain was induced by subcutaneous intra lip injection of capsaicin (100 μg)...
May 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28776630/metal-allergy-as-a-cause-of-implant-failure-in-shoulder-arthroplasty
#4
Jia-Wei Kevin Ko, Thema A Nicholson, C Edward Hoffler, Gerald Williams, Charles Getz
Metal allergy is an uncommon and poorly understood cause of failure of orthopedic implants. To the authors' knowledge, there have been no reports of the management of shoulder arthroplasty patients with metal allergy. The authors present their experience with the diagnosis and management of patients with metal allergy. Patients with metal allergy undergoing shoulder arthroplasty were identified through retrospective chart review from January 1, 2012, to January 31, 2015. Case characteristics collected included patient risk factors (age, sex, prior cutaneous reactions to metal), metal allergy factors (type of metal allergy, method of diagnosis), and surgery factors (implant type, primary/revision, type of shoulder arthroplasty)...
August 3, 2017: Orthopedics
https://www.readbyqxmd.com/read/28768409/opiates-and-plasticity-in-the-ventral-tegmental-area
#5
Ludovic D Langlois, Fereshteh S Nugent
Opioids are among the most effective pain relievers, however their abuse has been on the rise worldwide evident from an alarming increase in accidental opioid overdoses. This demands for an urgent increase in scientific endeavors for better understanding of main cellular mechanisms and circuits involved in opiate addiction. Preclinical studies strongly suggest that memories associated with positive and negative opioid experiences are critical in promoting compulsive opiate-seeking and opiate-taking behaviors, and relapse...
August 3, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28750809/assessing-allosteric-modulation-of-cb1-at-the-receptor-and-cellular-levels
#6
Caitlin E Scott, Debra A Kendall
The cannabinoid CB1 receptor is abundant in the central nervous system and regulates neuronal transmission and other key physiological processes including those leading to pain, inflammation, memory, and feeding behavior. CB1 is activated by the endogenous ligands, arachidonoyl ethanolamine and 2-arachidonoyl glycerol, by various synthetic ligands (e.g., CP55940), and by Δ(9)-tetrahydrocannabinol, the psychoactive component of Cannabis sativa. These CB1 ligands are orthosteric and transduce downstream signals by binding CB1 and primarily inducing Gi coupling, but Gs and β-arrestin coupling are also possible...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28750494/brain-pet-and-functional-mri-why-simultaneously-using-hybrid-pet-mr-systems
#7
Diego Cecchin, Alessandro Palombit, Marco Castellaro, Erica Silvestri, Franco Bui, Henryk Barthel, Osama Sabri, Maurizio Corbetta, Alessandra Bertoldo
INTRODUCTION: In the last 20 years growing attention has been devoted to multimodal imaging. The recent literature is rich of clinical and research studies that have been performed using different imaging modalities on both separate and integrated Positron Emission Tomography (PET) and Magnetic Resonance (MR) scanners. However, today, hybrid PET/MR systems measure signals related to brain structure, metabolism, neurochemistry, perfusion, and neuronal activity simultaneously, i.e. in the same physiological conditions...
July 27, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28749789/surgical-approach-to-piles-at-risk-of-severe-postoperative-pain-tricks-and-tips
#8
Domenico Tuscano, Linda D'Amore, Fabio Gaj, Paolo Bruzzone, Elena Annesi, Daniele Ceccarelli, Paolox Paolo Negro, Maria Romana Grimaldi, Francesco Gossetti
AIM: Aim of the present study is to propose a clinic-therapeutic course for the treatment of hemorrhoidal disease able to combine radical anatomic surgery with a painless postoperative path. MATERIAL OF STUDY: The present study is based on the evaluation of 20 selected patients who underwent radical hemorrhoidectomy for very high grade hemorrhoidal disease. The clinical course was characterized by careful bowel cleansing, hemorrhoidectomy according to Milligan-Morgan using LigaSure, intraoperative perianal infiltration of Ropivacaine and postoperative use of analgesic drugs...
July 24, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28744243/the-odyssey-of-dental-anxiety-from-prehistory-to-the-present-a-narrative-review
#9
REVIEW
Enrico Facco, Gastone Zanette
Dental anxiety (DA) can be considered as a universal phenomenon with a high prevalence worldwide; DA and pain are also the main causes for medical emergencies in the dental office, so their prevention is an essential part of patient safety and overall quality of care. Being DA and its consequences closely related to the fight-or-flight reaction, it seems reasonable to argue that the odyssey of DA began way back in the distant past, and has since probably evolved in parallel with the development of fight-or-flight reactions, implicit memory and knowledge, and ultimately consciousness...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28739131/ibudilast-reduces-oxaliplatin-induced-tactile-allodynia-and-cognitive-impairments-in-rats
#10
Ian N Johnston, Manuela Tan, Jacob Cao, Antigone Matsos, Daniel R L Forrest, Emily Si, Joanna E Fardell, Mark R Hutchinson
Chemotherapy can cause serious neurotoxic side effects, such as painful peripheral neuropathies and disabling cognitive impairments. Four experiments examined whether Ibudilast, a clinically approved neuroimmune therapy, would reduce tactile allodynia and memory impairments caused by oxaliplatin in laboratory rats. Rats received an intraperitoneal injection of oxaliplatin (6mg/kg i.p.) or vehicle and were assessed for tactile allodynia 3 or 5days after injection, memory impairments in the novel object and novel location recognition tests 10-12days after injection, and fear conditioning 14days after injection...
July 21, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28737419/behavioral-activation-as-a-common-mechanism-of-change-across-different-orientations-and-disorders
#11
Giancarlo Dimaggio, Golan Shahar
Behavioral activation is an effective treatment for depression, based on targeting deprivation of positive rewards. It becomes more and more evident that many forms of mental disorders and psychological suffering involve reduction of goal-driven and pleasant activities. This reduction leaves negative mental states free to take the center of consciousness, without being counterbalanced by positive feelings, memories, and experiences of agency, self-efficacy, competence, relaxation, energy, and satisfaction. Reduced activity can be found in disorders ranging from chronic pain to personality disorders and schizophrenia...
July 24, 2017: Psychotherapy
https://www.readbyqxmd.com/read/28732667/contribution-of-bdnf-trkb-signalling-in-the-racc-to-the-development-of-pain-related-aversion-via-activation-of-erk-in-rats-with-spared-nerve-injury
#12
Xu Wang, Le Zhang, Yufeng Zhan, Dengping Li, Yuangui Zhang, Gongming Wang, Mengyuan Zhang
The rostral anterior cingulate cortex (rACC) is a key structure in mediating the negative affective component of chronic pain. Brain-derived neurotrophic factor (BDNF) is known to play a critical role in activity-dependent synaptic plasticity, learning and memory. It has been shown that BDNF signalling in the rACC might be involved in spontaneous pain-related aversion, but its underlying mechanism is still largely unknown. To address this question, we measured the mRNA and protein levels of BDNF in the rACC after nerve injury and found that BDNF expression was markedly higher in nerve-injured rats than in controls...
July 18, 2017: Brain Research
https://www.readbyqxmd.com/read/28726472/the-influence-of-pain-memories-on-children-s-and-adolescents-post-surgical-pain-experience-a-longitudinal-dyadic-analysis
#13
Melanie Noel, Jennifer A Rabbitts, Jessica Fales, Jill Chorney, Tonya M Palermo
OBJECTIVE: Although children's pain memories have been shown to be a powerful predictor of subsequent pain experiences in acute procedural and experimental pain settings, little is known about the influence of children's and parents' pain memories on children's future pain experiences in other painful contexts. This study used a dyadic approach to examine the roles of children's and parents' memories of pain on their subsequent reporting of postsurgical pain several months after the child underwent a major surgical procedure...
July 20, 2017: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/28721398/calcium-stimulated-adenylyl-cyclase-subtype-1-ac1-contributes-to-ltp-in-the-insular-cortex-of-adult-mice
#14
Manabu Yamanaka, Takanori Matsuura, Haili Pan, Min Zhuo
Long-term potentiation (LTP) of synaptic transmission in the central nervous system is a key form of cortical plasticity. The insular cortex (IC) is known to play important roles in pain perception, aversive memory and mood disorders. LTP has been recently reported in the IC, however, the signaling pathway for IC LTP remains unknown. Here, we investigated the synaptic mechanism of IC LTP. We found that IC LTP induced by the pairing protocol was N-methyl-D-aspartate receptors (NMDARs) dependent, and expressed postsynaptically, since paired-pulse ratio (PPR) was not affected...
July 2017: Heliyon
https://www.readbyqxmd.com/read/28720486/loss-of-synaptic-zinc-transport-in-progranulin-deficient-mice-may-contribute-to-progranulin-associated-psychopathology-and-chronic-pain
#15
Stefanie Hardt, Juliana Heidler, Boris Albuquerque, Lucie Valek, Christine Altmann, Annett Wilken-Schmitz, Michael K E Schäfer, Ilka Wittig, Irmgard Tegeder
Affective and cognitive processing of nociception contributes to the development of chronic pain and vice versa, pain may precipitate psychopathologic symptoms. We hypothesized a higher risk for the latter with immanent neurologic diseases and studied this potential interrelationship in progranulin-deficient mice, which are a model for frontotemporal dementia, a disease dominated by behavioral abnormalities in humans. Young naïve progranulin deficient mice behaved normal in tests of short-term memory, anxiety, depression and nociception, but after peripheral nerve injury, they showed attention-deficit and depression-like behavior, over-activity, loss of shelter-seeking, reduced impulse control and compulsive feeding behavior, which did not occur in equally injured controls...
July 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28719507/the-relationship-between-chronic-pain-and-neurocognitive-function-a-systematic-review
#16
Diana M Higgins, Aaron M Martin, Dewleen G Baker, Jennifer J Vasterling, Victoria Risbrough
OBJECTIVE: Understanding the relationship between chronic pain and neurocognition has important implications for the assessment and treatment of pain. This paper provides an overview of the current literature examining the neurocognition-chronic pain relationship and suggests future avenues of research, along with a discussion of clinical implications of the literature findings. Consideration of potential moderators and mediators of this relationship, as well as a brief discussion of the importance of future research in special populations at particular risk for these problems, are also a focus of this paper...
July 17, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28711308/the-impact-of-scopolamine-pretreatment-on-3-iodothyronamine-t1am-effects-on-memory-and-pain-in-mice
#17
Annunziatina Laurino, Ersilia Lucenteforte, Gaetano De Siena, Laura Raimondi
We previously demonstrated that 3-iodothyronamine (T1AM), a by-product of thyroid hormone metabolism, pharmacologically administered to mice acutely stimulated learning and memory acquisition and provided hyperalgesia with a mechanism which remains to be defined. We now aimed to investigate whether the T1AM effect on memory and pain was maintained in mice pre-treated with scopolamine, a non-selective muscarinic antagonist expected to induce amnesia and, possibly, hyperalgesia. Mice were pre-treated with scopolamine and, after 20min, injected intracerebroventricularly (i...
July 19, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28708762/cognitive-load-selectively-influences-the-interruptive-effect-of-pain-on-attention
#18
David J Moore, Christopher Eccleston, Edmund Keogh
Pain is known to interrupt attentional performance. Such interference effects seem to occur preferentially for tasks that are complex and/or difficult. However, few studies have directly manipulated memory load in the context of pain interference to test this view. Therefore, the present study examines the effect of experimental manipulations of both memory load and pain on three tasks previously found to be sensitive to pain interference. Three experiments were conducted. A different task was examined in each experiment, each comprising of a high and low cognitive load versions of the task...
July 11, 2017: Pain
https://www.readbyqxmd.com/read/28706449/effects-of-tianeptine-on-symptoms-of-fibromyalgia-via-bdnf-signaling-in-a-fibromyalgia-animal-model
#19
Hwayoung Lee, Jiyun Im, Hansol Won, Wooyoung Nam, Young Ock Kim, Sang Won Lee, Sanghyun Lee, Ik-Hyun Cho, Hyung-Ki Kim, Jun-Tack Kwon, Hak-Jae Kim
Previous reports have suggested that physical and psychological stresses may trigger fibromyalgia (FM). Stress is an important risk factor in the development of depression and memory impairments. Antidepressants have been used to prevent stress-induced abnormal pain sensation. Among various antidepressants, tianeptine has been reported to be able to prevent neurodegeneration due to chronic stress and reverse decreases in hippocampal volume. To assess the possible effect of tianeptine on FM symptoms, we constructed a FM animal model induced by restraint stress with intermittent cold stress...
July 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28705181/the-impact-of-antiretroviral-therapy-on-symptom-burden-among-hiv-outpatients-with-low-cd4-count-in-rural-uganda-nested-longitudinal-cohort-study
#20
Katie Wakeham, Richard Harding, Jonathan Levin, Rosalind Parkes-Ratanshi, Anatoli Kamali, David G Lalloo
BACKGROUND: Individuals with HIV have a high prevalence of physical and psychological symptoms throughout their disease course. Despite the clinical and public health implications of unresolved pain and symptoms, little is known about the effect of anti-retroviral therapy (ART) on these outcomes. This study aimed to assess the impact on symptom burden for the year after ART initiation in individuals with a CD4 count <200 cells/uL in Uganda. METHODS: HIV-infected, ART-naıve adults referred from voluntary testing and counseling services in rural Uganda for enrollment into a randomized controlled trial to test fluconazole as primary prophylaxis against cryptococcal disease were invited to complete the Memorial Symptom Assessment Scale-Short Form (MSAS-SF) prior to commencing ART and at two subsequent follow up visits...
July 13, 2017: BMC Palliative Care
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