keyword
MENU ▼
Read by QxMD icon Read
search

stress induced hyperalgesia

keyword
https://www.readbyqxmd.com/read/28120884/phosphorylated-histone-3-at-serine-10-identifies-activated-spinal-neurons-and-contributes-to-the-development-of-tissue-injury-associated-pain
#1
Jose Vicente Torres-Pérez, Péter Sántha, Angelika Varga, Peter Szucs, Joao Sousa-Valente, Botond Gaal, Miklós Sivadó, Anna P Andreou, Sara Beattie, Bence Nagy, Klara Matesz, J Simon C Arthur, Gábor Jancsó, Istvan Nagy
Transcriptional changes in superficial spinal dorsal horn neurons (SSDHN) are essential in the development and maintenance of prolonged pain. Epigenetic mechanisms including post-translational modifications in histones are pivotal in regulating transcription. Here, we report that phosphorylation of serine 10 (S10) in histone 3 (H3) specifically occurs in a group of rat SSDHN following the activation of nociceptive primary sensory neurons by burn injury, capsaicin application or sustained electrical activation of nociceptive primary sensory nerve fibres...
January 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093054/impact-of-psychological-stress-on-pain-perception-in-an-animal-model-of-endometriosis
#2
Siomara Hernandez, Myrella L Cruz, Inevy I Seguinot, Annelyn Torres-Reveron, Caroline B Appleyard
PURPOSE: Pain in patients with endometriosis is considered a significant source of stress but does not always correlate with severity of the condition. We have demonstrated that stress can worsen endometriosis in an animal model. Here, we tested the impact of a psychological stress protocol on pain thresholds and pain receptors. METHODS: Endometriosis was induced in female rats by suturing uterine horn tissue next to the intestinal mesentery. Sham rats had sutures only...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28092651/long-lasting-antinociceptive-effects-of-green-light-in-acute-and-chronic-pain-in-rats
#3
Mohab M Ibrahim, Amol Patwardhan, Kerry B Gilbraith, Aubin Moutal, Xiaofang Yang, Lindsey A Chew, Tally Largent-Milnes, T Philip Malan, Todd W Vanderah, Frank Porreca, Rajesh Khanna
Treatments for chronic pain are inadequate, and new options are needed. Nonpharmaceutical approaches are especially attractive with many potential advantages including safety. Light therapy has been suggested to be beneficial in certain medical conditions such as depression, but this approach remains to be explored for modulation of pain. We investigated the effects of light-emitting diodes (LEDs), in the visible spectrum, on acute sensory thresholds in naive rats as well as in experimental neuropathic pain...
February 2017: Pain
https://www.readbyqxmd.com/read/28039003/neurotropin%C3%A2-inhibits-calpain-activity-upregulated-by-specific-alternation-of-rhythm-in-temperature-in-the-mesencephalon-of-rats
#4
Hiroki Fujisawa, Takumi Numazawa, Minoru Kawamura, Mitsuru Naiki
AIMS: Neurotropin® (NTP), an analgesic for chronic pain, has antihyperalgesic effects in specific alternation of rhythm in temperature (SART)-stressed rats. Previous studies have shown that SART stress induces hyperalgesia, as well as post-translational modification of proteins (including substrates for calpain, a calcium-dependent cysteine protease) in the mesencephalon of rats. To better understand the mechanism of action of NTP, we investigated whether SART stress activates calpain in the mesencephalon of rats and whether NTP inhibits this activation...
December 27, 2016: Life Sciences
https://www.readbyqxmd.com/read/28030471/stress-related-psychological-symptoms-contribute-to-axial-pain-persistence-after-motor-vehicle-collision-path-analysis-results-from-a-prospective-longitudinal-study
#5
Rose K Feinberg, June Hu, Mark A Weaver, Roger B Fillingim, Robert A Swor, David A Peak, Jeffrey S Jones, Niels K Rathlev, David C Lee, Robert M Domeier, Phyllis L Hendry, Israel Liberzon, Samuel A McLean
Post-traumatic stress disorder (PTSD) symptoms and pain after traumatic events such as motor vehicle collision (MVC) have been proposed to be mutually promoting. We performed a prospective multicenter study that enrolled 948 individuals who presented to the emergency department (ED) within 24 hours of MVC and were discharged home after evaluation. Follow-up evaluations were completed 6 weeks, 6 months, and 1 year after MVC. Path analysis results supported the hypothesis that axial pain after MVC consistently promotes the maintenance of hyperarousal and intrusive symptoms, from the early weeks post-injury through 1 year...
December 22, 2016: Pain
https://www.readbyqxmd.com/read/27995982/crosstalk-between-activated-microglia-and-neurons-in-the-spinal-dorsal-horn-contributes-to-stress-induced-hyperalgesia
#6
Jian Qi, Chen Chen, Qing-Xi Meng, Yan Wu, Haitao Wu, Ting-Bao Zhao
Stress has been shown to enhance pain sensitivity resulting in stress-induced hyperalgesia. However, the underlying mechanisms have yet to be elucidated. Using single-prolonged stress combined with Complete Freund's Adjuvant injection model, we explored the reciprocal regulatory relationship between neurons and microglia, which is critical for the maintenance of posttraumatic stress disorder (PTSD)-induced hyperalgesia. In our assay, significant mechanical allodynia was observed. Additionally, activated neurons in spinal dorsal horn were observed by analysis of Fos expression...
December 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27980107/niclosamide-inhibits-oxaliplatin-neurotoxicity-while-improving-colorectal-cancer-therapeutic-response
#7
Olivier Cerles, Evelyne Benoit, Christiane Chéreau, Sandrine Chouzenoux, Florence Morin, Marie-Anne Guillaumot, Romain Coriat, Niloufar Kavian, Thomas Loussier, Pietro Santulli, Louis Marcellin, Nathaniel E B Saidu, Bernard Weill, Frederic Batteux, Carole Nicco
Neuropathic pain is a limiting-factor of platinum-based chemotherapies. We sought to investigate the neuroprotective potential of niclosamide in peripheral neuropathies induced by oxaliplatin. Normal neuron-like and cancer cells were treated in vitro with oxaliplatin associated or not with an inhibitor of STAT3 and NF-кB, niclosamide. Cell production of reactive oxygen species and viability were measured by 2',7'-dichlorodihydrofluorescein diacetate and crystal violet. Peripheral neuropathies were induced in mice by oxaliplatin with or without niclosamide...
December 15, 2016: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/27937009/the-anti-arthritic-activity-of-total-glycosides-from-pterocephalus-hookeri-a-traditional-tibetan-herbal-medicine
#8
Xiao-Fei Shen, Yong Zeng, Jia-Chuan Li, Ce Tang, Yi Zhang, Xian-Li Meng
CONTEXT: Pterocephalus hookeri (C. B. Clarke) Hock., a traditional Tibetan herbal medicine rich in glycosides, has been used to treat several diseases including rheumatoid arthritis. OBJECTIVE: To evaluate the anti-arthritic activity of total glycosides from P. hookeri, and its possible mechanisms of action. MATERIALS AND METHODS: Anti-arthritic activity of total glycosides from P. hookeri (oral administration for 30 days at 14-56 mg/kg) was evaluated using paw swelling, arthritis scores and histopathological measurement in adjuvant-induced arthritis (AA) Sprague-Dawley rats...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27910150/randomised-clinical-trial-exploratory-phase-2-study-of-ono-2952-in-diarrhoea-predominant-irritable-bowel-syndrome
#9
W E Whitehead, K Duffy, J Sharpe, T Nabata, M Bruce
BACKGROUND: ONO-2952 is a novel and selective inhibitor of translocator protein 18 kDa that reduces stress-induced defecation and visceral hyperalgesia in rat models. AIM: To evaluate the efficacy and safety of ONO-2952 in females with irritable bowel syndrome with diarrhoea in an exploratory proof-of-concept study. METHODS: A randomised, double-blind, placebo-controlled study was conducted at 49 US centres. Two hundred subjects with irritable bowel syndrome with diarrhoea (Rome III criteria) were randomised to ONO-2952 20 mg, or 60 mg, or placebo...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27781340/p2x3-receptor-mediated-visceral-hyperalgesia-and-neuronal-sensitization-following-exposure-to-ptsd-like-stress-in-the-dorsal-root-ganglia-of-rats
#10
Y-Q He, X-Q Lang, L Lin, L Ji, X-Y Yuan, Q Chen, Y-M Ran, H-S Chen, L Li, J-M Wang, Z-G Wang, H Gregersen, D-W Zou, H-P Liang, M Yang
BACKGROUND: Patients with posttraumatic stress disorder (PTSD) often share co-morbidity with chronic pain conditions. Recent studies suggest a role of P2X3 receptors and ATP signaling in pain conditions. However, the underlying mechanisms of visceral hyperalgesia following exposure to PTSD-like stress conditions remain unclarified. METHODS: The behavior and hormones relevant for PTSD were studied. Visceromotor responses (VMR) and the abdominal withdrawal reflexes (AWR) to colorectal distention (CRD) were recorded to determine P2X3-receptor-mediated alteration of hyperalgesia following single-prolonged stress (SPS) exposure...
October 25, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/27778243/activation-of-the-nuclear-factor-e2-related-factor%C3%A2-2-anitioxidant-response-element-alleviates-the-nitroglycerin-induced-hyperalgesia-in-rats
#11
Wei Di, Xiaolei Shi, Hua Lv, Jun Liu, Hong Zhang, Zhiwei Li, Yannan Fang
BACKGROUND: Antioxidants have been proven to weaken hyperalgesia in neuropathic pain. Endogenous antioxidant defense system may have a role in the prevention of hyperalgesia in migraine. In this study, we aimed to evaluate the role of nuclear factor E2-related factor 2/antioxidant response element (Nrf2/ARE) pathway in regulating the activation of the trigeminovascular system (TGVS) and hypersensitivity in nitroglycerin (NTG)-induced hyperalgesia rats. METHODS: The expression levels of Nrf2, HO, HO1, and NQO1 in the trigeminal nucleus caudalis (TNC) were detected by western blot...
December 2016: Journal of Headache and Pain
https://www.readbyqxmd.com/read/27774512/social-transfer-of-pain-in-mice
#12
Monique L Smith, Caroline M Hostetler, Mary M Heinricher, Andrey E Ryabinin
A complex relationship exists between the psychosocial environment and the perception and experience of pain, and the mechanisms of the social communication of pain have yet to be elucidated. The present study examined the social communication of pain and demonstrates that "bystander" mice housed and tested in the same room as mice subjected to inflammatory pain or withdrawal from morphine or alcohol develop corresponding hyperalgesia. Olfactory cues mediate the transfer of hyperalgesia to the bystander mice, which can be measured using mechanical, thermal, and chemical tests...
October 2016: Science Advances
https://www.readbyqxmd.com/read/27768926/prunella-vulgaris-l-active-components-and-their-hypoglycemic-and-antinociceptive-effects-in-alloxan-induced-diabetic-mice
#13
K Raafat, M Wurglics, M Schubert-Zsilavecz
Prunella vulgaris L. (Lamiaceae) (PV) is a herbaceous plant traditionally utilized in management of diabetes and it has immunomodulatory activity. In this study, acute and subchronic antidiabetic, in-vivo antioxidant and antinociceptive effects of PV were evaluated in alloxan-induced type 1 diabetes (T1D) in a mouse model. Bio-guided fractionation, isolation, RP-HPLC, and (1)H and (13)C NMR identification of the active components responsible for PV effects were determined. RP-HPLC analysis showed that PV contained rosmarinic acid (RA) 4...
December 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27757590/niflumic-acid-a-trpv1-channel-modulator-ameliorates-stavudine-induced-neuropathic-pain
#14
Lovish Marwaha, Yashika Bansal, Raghunath Singh, Priyanka Saroj, Rupinder Kaur Sodhi, Anurag Kuhad
TRP channels have been discovered as a specialized group of somatosensory neurons involved in the detection of noxious stimuli. Desensitization of TRPV1 located on dorsal root and trigeminal ganglia exhibits analgesic effect and makes it potential therapeutic target for treatment of neuropathic pain. With this background, the present study was aimed to investigate the protective effect of niflumic acid, a TRPV1 modulator, on stavudine (STV)-induced neuropathic pain in rats. Stavudine (50 mg/kg) was administered intravenously via tail vein in rats to induce neuropathic pain...
December 2016: Inflammopharmacology
https://www.readbyqxmd.com/read/27733068/elucidating-the-role-of-oxidative-stress-in-the-therapeutic-effect-of-rutin-on-experimental-acute-pancreatitis
#15
Fabíula Francisca Abreu, Ana Carla Araújo Souza, Simone Aparecida Teixeira, Antônio Garcia Soares, Daiane Franco Teixeira, Rosilene Calazans Soares, Marilia Trindade Santana, Sandra Lauton Santos, Soraia Kátia Pereira Costa, Marcelo Nicolas Muscará, Enilton Aparecido Camargo
INTRODUCTION: Acute pancreatitis (AP) may be severe and cause hospitalization or death, and the available treatment is insufficient to control pancreatic inflammation and pain. Rutin is a natural flavonoid with the potential to treat AP via anti-inflammatory, antinociceptive, and antioxidant activities. AIM: This study investigated the beneficial effects of rutin on experimental AP induced by l-arginine administration in mice. METHODS: The l-arginine-induced AP model was used in Swiss mice (n = 6-8)...
December 2016: Free Radical Research
https://www.readbyqxmd.com/read/27714773/histamine-h4-receptor-agonist-induced-relief-from-painful-peripheral-neuropathy-is-mediated-by-inhibition-of-spinal-neuroinflammation-and-oxidative-stress
#16
Maria Domenica Sanna, Laura Lucarini, Mariaconcetta Durante, Carla Ghelardini, Emanuela Masini, Nicoletta Galeotti
BACKGROUND AND PURPOSE: Neuropathic pain is under-treated, with a detrimental effect on quality of life, partly because of low treatment efficacy, but also because pathophysiological mechanisms are not fully elucidated. To clarify the pathobiology of neuropathic pain, we studied the contribution of neuroinflammation and oxidative stress in a model of peripheral neuropathy. We also assessed an innovative treatment for neuropathic pain by investigating the effects of histamine H4 receptor ligands in this model...
January 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27712995/combination-strategy-of-parp-inhibitor-with-antioxidant-prevent-bioenergetic-deficits-and-inflammatory-changes-in-cci-induced-neuropathy
#17
Prashanth Komirishetty, Aparna Areti, Ranadeep Gogoi, Ramakrishna Sistla, Ashutosh Kumar
Neuropathic pain, a debilitating pain condition and the underlying pathogenic mechanisms are complex and interwoven amongst each other and still there is scant information available regarding therapies which promise to treat the condition. Evidence indicate that oxidative/nitrosative stress induced poly (ADP-ribose) polymerase (PARP) overactivation initiate neuroinflammation and bioenergetic crisis culminating into neurodegenerative changes following nerve injury. Hence, we investigated the therapeutic effect of combining an antioxidant, quercetin and a PARP inhibitor, 4-amino 1, 8-naphthalimide (4-ANI) on the hallmark deficits induced by chronic constriction injury (CCI) of sciatic nerve in rats...
February 2017: Neuropharmacology
https://www.readbyqxmd.com/read/27701898/differential-regulation-of-oxidative-stress-and-cytokine-production-by-endothelin-eta-and-etb-receptors-in-superoxide-anion-induced-inflammation-and-pain-in-mice
#18
Victor Fattori, Karla G G Serafim, Ana C Zarpelon, Sergio M Borghi, Felipe A Pinho-Ribeiro, José C Alves-Filho, Thiago M Cunha, Fernando Q Cunha, Rúbia Casagrande, Waldiceu A Verri
The present study investigated whether endothelin-1 acts via ETA or ETB receptors to mediate superoxide anion-induced pain and inflammation. Mice were treated with clazosentan (ETA receptor antagonist) or BQ-788 (ETB receptor antagonist) prior to stimulation with the superoxide anion donor, KO2. Intraplantar treatment with 30 nmol of clazosentan or BQ-788 reduced mechanical hyperalgesia (47% and 42%), thermal hyperalgesia (68% and 76%), oedema (50% and 30%); myeloperoxidase activity (64% and 32%), and overt-pain like behaviours, such as paw flinching (42% and 42%) and paw licking (38% and 62%), respectively...
October 5, 2016: Journal of Drug Targeting
https://www.readbyqxmd.com/read/27669445/triathletes-lose-their-advantageous-pain-modulation-under-acute-psychosocial-stress
#19
Nirit Geva, Jens Pruessner, Ruth Defrin
INTRODUCTION: Triathletes, who constantly engage in intensely stressful sport, were recently found to exhibit greater pain tolerance and more efficient pain inhibition capabilities than non athletes. However, pain inhibition correlated negatively with retrospective reports of mental stress during training and competition. The aim of the current study was to test pain inhibition capabilities of triathletes under acute, controlled psychological stress manipulation. METHODS: Participants were 25 triathletes and ironman triathletes who underwent the measurement of pain-threshold, pain-intolerance, tonic suprathreshold pain and conditioned pain modulation (CPM) before and during exposure to the Montreal Imaging Stress Task (MIST)...
September 23, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27665186/advanced-oxidation-protein-products-sensitized-the-transient-receptor-potential-vanilloid-1-via-nadph-oxidase-1-and-4-to-cause-mechanical-hyperalgesia
#20
Ruoting Ding, Hui Jiang, Baihui Sun, Xiaoliang Wu, Wei Li, Siyuan Zhu, Congrui Liao, Zhaoming Zhong, Jianting Chen
Oxidative stress is a possible pathogenesis of hyperalgesia. Advanced oxidation protein products (AOPPs), a new family of oxidized protein compounds, have been considered as a novel marker of oxidative stress. However, the role of AOPPs in the mechanism of hyperalgesia remains unknown. Our study aims to investigate whether AOPPs have an effect on hyperalgesia and the possible underlying mechanisms. To identify the AOPPs involved, we induced hyperalgesia in rats by injecting complete Freund's adjuvant (CFA) in hindpaw...
September 17, 2016: Redox Biology
keyword
keyword
80831
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"