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pain neurobiology

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https://www.readbyqxmd.com/read/28905723/breeding-and-rearing-naked-mole-rats-heterocephalus-glaber-under-laboratory-conditions
#1
Chenlin Yu, Shiyong Wang, Guoshi Yang, Shanmin Zhao, Lifang Lin, Wenjing Yang, Qiu Tang, Wei Sun, Shufang Cui
The unique biologic characteristics of naked mole-rats (NMR, Heterocephalus glaber) include longevity, cancer resistance, hypoxia tolerance, and pain insensitivity, making NMR an attractive model for biomedical research on aging, cancer, and neurobiology. However, breeding and rearing NMR in captivity is challenging. Here, we report a method for breeding NMR by using a closed-colony mating system. We selected sexually mature male and female NMR from different natal colonies and mated them 1:1. The 5 original colonies had an annual parity of 3...
January 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28880891/altered-right-anterior-insular-connectivity-and-loss-of-associated-functions-in-adolescent-chronic-fatigue-syndrome
#2
Laura Anne Wortinger, Merete Glenne Øie, Tor Endestad, Vegard Bruun Wyller
Impairments in cognition, pain intolerance, and physical inactivity characterize adolescent chronic fatigue syndrome (CFS), yet little is known about its neurobiology. The right dorsal anterior insular (dAI) connectivity of the salience network provides a motivational context to stimuli. In this study, we examined regional functional connectivity (FC) patterns of the right dAI in adolescent CFS patients and healthy participants. Eighteen adolescent patients with CFS and 18 aged-matched healthy adolescent control participants underwent resting-state functional magnetic resonance imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28861505/the-use-of-cannabis-for-headache-disorders
#3
REVIEW
Bryson C Lochte, Alexander Beletsky, Nebiyou K Samuel, Igor Grant
Headache disorders are common, debilitating, and, in many cases, inadequately managed by existing treatments. Although clinical trials of cannabis for neuropathic pain have shown promising results, there has been limited research on its use, specifically for headache disorders. This review considers historical prescription practices, summarizes the existing reports on the use of cannabis for headache, and examines the preclinical literature exploring the role of exogenous and endogenous cannabinoids to alter headache pathophysiology...
2017: Cannabis and Cannabinoid Research
https://www.readbyqxmd.com/read/28858914/neuropathic-symptoms-of-the-ocular-surface-dryness-pain-and-itch
#4
Hjalte H Andersen, Gil Yosipovitch, Anat Galor
PURPOSE OF REVIEW: This review aims to describe the recent findings on epidemiology, pathophysiology, and management of neuropathic symptoms of the ocular surface, with a focus on potential similarities between sensations of dry eye, pain and itch. RECENT FINDINGS: A narrative review of the literature was undertaken. Key references from research in dry eye, neuropathic symptoms of the ocular surface, ocular pain and itch, as well as general references on itch and pain neurobiology were included...
October 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28855788/an-abbreviated-therapeutic-neuroscience-education-session-improves-pain-knowledge-in-first-year-physical-therapy-students-but-does-not-change-attitudes-or-beliefs
#5
Terry Cox, Adriaan Louw, Emilio J Puentedura
OBJECTIVE: To determine if a 3-hour therapeutic neuroscience education session alters physical therapy student's knowledge of pain and effects their attitudes and beliefs regarding treating chronic pain. METHODS: Seventy-seven entry-level doctoral physical therapy students participated in the study. Following consent, demographic data were obtained and then the subjects completed the Neuroscience of Pain Questionnaire, the Health Care Provider's Pain and Impairment Relationship Scale and an additional questionnaire designed by the researchers...
February 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28760650/grip-strength-in-mice-with-joint-inflammation-a-rheumatology-function-test-sensitive-to-pain-and-analgesia
#6
Ángeles Montilla-García, Miguel Á Tejada, Gloria Perazzoli, José M Entrena, Enrique Portillo-Salido, Eduardo Fernández-Segura, Francisco J Cañizares, Enrique J Cobos
Grip strength deficit is a measure of pain-induced functional disability in rheumatic disease. We tested whether this parameter and tactile allodynia, the standard pain measure in preclinical studies, show parallels in their response to analgesics and basic mechanisms. Mice with periarticular injections of complete Freund's adjuvant (CFA) in the ankles showed periarticular immune infiltration and synovial membrane alterations, together with pronounced grip strength deficits and tactile allodynia measured with von Frey hairs...
July 29, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28758232/administrations-of-thalidomide-into-the-rostral-ventromedial-medulla-produce-antinociceptive-effects-in-a-rat-model-of-postoperative-pain
#7
Tieying Song, Xiaojing Ma, Pengyu Ma, Kunfeng Gu, Jianhui Zhao, Yunliang Yang, Bo Jiang, Yuxia Li, Chunping Wang
The rostral ventromedial medulla (RVM) is highly involved in pain signal transmissions. Previous studies have shown that thalidomide is anti-nociceptive. Thus, we evaluated the neurobiological mechanisms of thalidomide in the RVM in the regulation of postoperative pain. We used a rat model of postoperative pain to investigate the effects of intra-RVM thalidomide treatments on postoperative pain, and evaluate the role of cannabinoid receptors in the effects of intra-RVM thalidomide treatments on GABAergic neurotransmission in the RVM neurons...
July 31, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28725185/reticular-formation-and-pain-the-past-and-the-future
#8
REVIEW
Isabel Martins, Isaura Tavares
The involvement of the reticular formation (RF) in the transmission and modulation of nociceptive information has been extensively studied. The brainstem RF contains several areas which are targeted by spinal cord afferents conveying nociceptive input. The arrival of nociceptive input to the RF may trigger alert reactions which generate a protective/defense reaction to pain. RF neurons located at the medulla oblongata and targeted by ascending nociceptive information are also involved in the control of vital functions that can be affected by pain, namely cardiovascular control...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28706741/the-link-between-depression-and-chronic-pain-neural-mechanisms-in-the-brain
#9
REVIEW
Jiyao Sheng, Shui Liu, Yicun Wang, Ranji Cui, Xuewen Zhang
Chronic pain, as a stress state, is one of the critical factors for determining depression, and their coexistence tends to further aggravate the severity of both disorders. Unfortunately, their association remains unclear, which creates a bottleneck problem for managing chronic pain-induced depression. In recent years, studies have found considerable overlaps between pain- and depression-induced neuroplasticity changes and neurobiological mechanism changes. Such overlaps are vital to facilitating the occurrence and development of chronic pain and chronic pain-induced depression...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28701703/the-behavioral-and-neural-basis-of-empathic-blame
#10
Indrajeet Patil, Marta Calò, Federico Fornasier, Fiery Cushman, Giorgia Silani
Mature moral judgments rely both on a perpetrator's intent to cause harm, and also on the actual harm caused-even when unintended. Much prior research asks how intent information is represented neurally, but little asks how even unintended harms influence judgment. We interrogate the psychological and neural basis of this process, focusing especially on the role of empathy for the victim of a harmful act. Using fMRI, we found that the 'empathy for pain' network was involved in encoding harmful outcomes and integrating harmfulness information for different types of moral judgments, and individual differences in the extent to which this network was active during encoding and integration of harmfulness information determined severity of moral judgments...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28699403/rna-seq-investigations-of-human-post-mortem-trigeminal-ganglia
#11
Danielle M LaPaglia, Matthew R Sapio, Peter D Burbelo, Jean Thierry-Mieg, Danielle Thierry-Mieg, Stephen J Raithel, Christopher E Ramsden, Michael J Iadarola, Andrew J Mannes
Background The trigeminal ganglion contains neurons that relay sensations of pain, touch, pressure, and many other somatosensory modalities to the central nervous system. The ganglion is also a reservoir for latent herpes virus 1 infection. To gain a better understanding of molecular factors contributing to migraine and headache, transcriptome analyses were performed on postmortem human trigeminal ganglia. Methods RNA-Seq measurements of gene expression were conducted on small sub-regions of 16 human trigeminal ganglia...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28694679/a-clinical-perspective-on-a-pain-neuroscience-education-approach-to-manual-therapy
#12
Adriaan Louw, Jo Nijs, Emilio J Puentedura
In recent years, there has been an increased interest in pain neuroscience education (PNE) in physical therapy. There is growing evidence for the efficacy of PNE to decrease pain, disability, fear-avoidance, pain catastrophization, limited movement, and health care utilization in people struggling with pain. PNE teaches people in pain more about the biology and physiology of their pain experience including processes such as central sensitization, peripheral sensitization, allodynia, inhibition, facilitation, neuroplasticity and more...
July 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28690582/decreased-openness-to-experience-is-associated-with-migraine-type-headaches-in-subjects-with-lifetime-depression
#13
Mate Magyar, Xenia Gonda, Dorottya Pap, Andrea Edes, Attila Galambos, Daniel Baksa, Natalia Kocsel, Edina Szabo, Gyorgy Bagdy, Rebecca Elliott, Gyongyi Kokonyei, Gabriella Juhasz
INTRODUCTION: Migraine and depression frequently occur as comorbid conditions, and it has been hypothesized that migraine with and without depression may have a different genetic background. A distinct personality trait constellation has been described in migraineurs. Less attention, however, was paid to personality differences in migraineurs with and without depression which may also shed light on differences in the neurobiological, background. The aim of our study was to investigate big five personality traits, headaches, and lifetime depression (DEP) in a large European general population sample...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28666966/aapt-diagnostic-criteria-for-central-neuropathic-pain
#14
Eva Widerström-Noga, John D Loeser, Troels Staehelin Jensen, Nanna Brix Finnerup
Central neuropathic pain, which is pain caused by a lesion or disease of the central somatosensory nervous system, is a serious consequence of spinal cord injury, stroke, multiple sclerosis, and other conditions affecting the central nervous system. A collaborative effort between the Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities, and Networks public-private partnership and the American Pain Society, the Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities, and Networks-American Pain Society Pain Taxonomy (AAPT) initiative, invited a working group to develop diagnostic criteria for central neuropathic pain...
June 27, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28664196/postinflammatory-hyperpigmentation-after-human-cold-pain-testing
#15
Melissa J Wolz, Katelyn E Sadler, Caela C Long, Daniel S Brenner, Brian S Kim, Robert W Gereau, Benedict J Kolber
Changes in cold temperature sensitivity are often associated with chronic pain conditions. Progress in understanding the neurobiological mechanism underlying these changes and resulting development of effective therapies has been slowed by the accessibility and affordability of devices used to measure thermal sensitivity in humans. To address this gap, we developed an inexpensive method to measure cold pain thresholds in healthy adult volunteers using dry ice and a thermode. However, early in preliminary testing, a subject presented with epidermal postinflammatory hyperpigmentation that lasted for >200 days...
August 2016: Pain Reports (Baltimore, Md.)
https://www.readbyqxmd.com/read/28651098/an-interoceptive-model-of-bulimia-nervosa-a-neurobiological-systematic-review
#16
REVIEW
Megan Klabunde, Danielle Collado, Cara Bohon
The objective of our study was to examine the neurobiological support for an interoceptive sensory processing model of bulimia nervosa (BN). To do so, we conducted a systematic review of interoceptive sensory processing in BN, using the PRISMA guidelines. We searched PsychInfo, Pubmed, and Web of Knowledge databases to identify biological and behavioral studies that examine interoceptive detection in BN. After screening 390 articles for inclusion and conducting a quality assessment of articles that met inclusion criteria, we reviewed 41 articles...
June 19, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28616655/-cognitive-perceptive-approaches-in-the-treatment-of-chronic-pain
#17
REVIEW
C Storz, H Schulte-Göcking, M Azqueta, C Wania, M Neugebauer, A Reiners, S Azad, E Kraft
In the treatment of difficult chronic pain conditions, cognitive-perceptive approaches offer an alternative to conventional therapies. Especially phantom limb pain and complex regional pain syndrome (CRPS) are frequently treated with these promising modalities. This article provides an overview of the most important cognitive-perceptive therapies and the research results concerning their clinical efficacy. In addition, we discuss their neurobiological foundation and clinical perspectives.
June 14, 2017: Der Schmerz
https://www.readbyqxmd.com/read/28602044/the-dynamic-interaction-between-pain-and-opioid-misuse
#18
REVIEW
Adrianne R Wilson-Poe, Jose A Morón
In 2014, drug overdose surpassed automobile accidents as the number one cause of accidental death for the first time in the history of the United States. The overdose epidemic is largely driven by opioids, and genuine prescription opioid analgesics play the biggest role in this phenomenon. Despite advancements in abuse deterrent formulations, prescription drug monitoring programmes and clinical assessments for the detection of abuse potential, drug overdoses continue to escalate. The Center for Disease Control has recently issued new guidelines for opioid prescription, yet even these recommendations have their shortcomings...
June 11, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28596533/breaking-barriers-to-novel-analgesic-drug-development
#19
REVIEW
Ajay S Yekkirala, David P Roberson, Bruce P Bean, Clifford J Woolf
Acute and chronic pain complaints, although common, are generally poorly served by existing therapies. This unmet clinical need reflects a failure to develop novel classes of analgesics with superior efficacy, diminished adverse effects and a lower abuse liability than those currently available. Reasons for this include the heterogeneity of clinical pain conditions, the complexity and diversity of underlying pathophysiological mechanisms, and the unreliability of some preclinical pain models. However, recent advances in our understanding of the neurobiology of pain are beginning to offer opportunities for developing novel therapeutic strategies and revisiting existing targets, including modulating ion channels, enzymes and G-protein-coupled receptors...
August 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28595945/role-of-placebo-effects-in-pain-and-neuropsychiatric-disorders
#20
REVIEW
Annabelle M Belcher, Sergi Ferré, Pedro E Martinez, Luana Colloca
The placebo (and the nocebo) effect is a powerful determinant of health outcomes in clinical disease treatment and management. Efforts to completely eradicate placebo effects have shifted dynamically, as increasingly more researchers are tuned to the potentially beneficial effects of incorporating those uncontrollable placebo effects into clinical therapeutic strategies. In this review, we highlight the major findings from placebo research, elucidating the main neurobiological systems and candidate determinants of the placebo phenomenon, and illustrate a perspective that can effectively frame future research on the topic...
June 8, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
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