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ANAESTHESIOLOGY (121 journals)                     

Showing 1 - 121 of 121 Journals sorted alphabetically
Acta Anaesthesiologica Scandinavica     Hybrid Journal   (Followers: 62)
Acta Anaesthesiologica Taiwanica     Open Access   (Followers: 6)
Acute Pain     Full-text available via subscription   (Followers: 16)
Advances in Anesthesia     Full-text available via subscription   (Followers: 31)
African Journal of Anaesthesia and Intensive Care     Full-text available via subscription   (Followers: 9)
Ain-Shams Journal of Anaesthesiology     Open Access   (Followers: 2)
Ain-Shams Journal of Anesthesiology     Open Access   (Followers: 1)
Ambulatory Anesthesia     Open Access   (Followers: 9)
Anaesthesia     Hybrid Journal   (Followers: 239)
Anaesthesia & Intensive Care Medicine     Full-text available via subscription   (Followers: 72)
Anaesthesia and Intensive Care     Full-text available via subscription   (Followers: 62)
Anaesthesia Critical Care & Pain Medicine     Full-text available via subscription   (Followers: 28)
Anaesthesia Reports     Hybrid Journal  
Anaesthesia, Pain & Intensive Care     Open Access  
Anaesthesiology Intensive Therapy     Open Access   (Followers: 9)
Analgesia & Resuscitation : Current Research     Hybrid Journal   (Followers: 7)
Anestesia Analgesia Reanimación     Open Access   (Followers: 1)
Anestesia en México     Open Access   (Followers: 1)
Anesthesia & Analgesia     Hybrid Journal   (Followers: 275)
Anesthesia : Essays and Researches     Open Access   (Followers: 10)
Anesthesia Progress     Hybrid Journal   (Followers: 6)
Anesthésie & Réanimation     Full-text available via subscription   (Followers: 2)
Anesthesiology     Hybrid Journal   (Followers: 232)
Anesthesiology and Pain Medicine     Open Access   (Followers: 23)
Anesthesiology Clinics     Full-text available via subscription   (Followers: 25)
Anesthesiology Research and Practice     Open Access   (Followers: 15)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Annales Françaises d'Anesthésie et de Réanimation     Full-text available via subscription   (Followers: 4)
Annals of Cardiac Anaesthesia     Open Access   (Followers: 15)
BDJ Team     Open Access   (Followers: 1)
Best Practice & Research Clinical Anaesthesiology     Hybrid Journal   (Followers: 15)
BJA : British Journal of Anaesthesia     Hybrid Journal   (Followers: 245)
BJA Education     Hybrid Journal   (Followers: 70)
BMC Anesthesiology     Open Access   (Followers: 18)
BMJ Supportive & Palliative Care     Hybrid Journal   (Followers: 47)
Brazilian Journal of Anesthesiology     Open Access   (Followers: 5)
Brazilian Journal of Anesthesiology (Edicion en espanol)     Open Access  
Brazilian Journal of Anesthesiology (English edition)     Open Access   (Followers: 1)
Brazilian Journal of Pain (BrJP)     Open Access  
British Journal of Pain     Hybrid Journal   (Followers: 28)
Canadian Journal of Anesthesia/Journal canadien d'anesthésie     Hybrid Journal   (Followers: 48)
Case Reports in Anesthesiology     Open Access   (Followers: 11)
Clinical Journal of Pain     Hybrid Journal   (Followers: 19)
Colombian Journal of Anesthesiology : Revista Colombiana de Anestesiología     Hybrid Journal   (Followers: 1)
Current Anaesthesia & Critical Care     Full-text available via subscription   (Followers: 36)
Current Anesthesiology Reports     Hybrid Journal   (Followers: 4)
Current Opinion in Anaesthesiology     Hybrid Journal   (Followers: 61)
Current Pain and Headache Reports     Hybrid Journal   (Followers: 2)
Der Anaesthesist     Hybrid Journal   (Followers: 9)
Der Schmerz     Hybrid Journal   (Followers: 4)
Der Schmerzpatient     Hybrid Journal  
Douleur et Analgésie     Hybrid Journal  
Egyptian Journal of Anaesthesia     Open Access   (Followers: 3)
Egyptian Journal of Cardiothoracic Anesthesia     Open Access  
EMC - Anestesia-Reanimación     Hybrid Journal  
EMC - Anestesia-Rianimazione     Hybrid Journal  
EMC - Urgenze     Full-text available via subscription  
European Journal of Anaesthesiology     Hybrid Journal   (Followers: 30)
European Journal of Pain     Full-text available via subscription   (Followers: 27)
European Journal of Pain Supplements     Full-text available via subscription   (Followers: 5)
Global Journal of Anesthesiology     Open Access   (Followers: 2)
Headache The Journal of Head and Face Pain     Hybrid Journal   (Followers: 5)
Indian Journal of Anaesthesia     Open Access   (Followers: 7)
Indian Journal of Pain     Open Access   (Followers: 2)
Indian Journal of Palliative Care     Open Access   (Followers: 8)
International Anesthesiology Clinics     Hybrid Journal   (Followers: 9)
International Journal of Clinical Anesthesia and Research     Open Access  
Itch & Pain     Open Access   (Followers: 2)
JA Clinical Reports     Open Access  
Journal Club Schmerzmedizin     Hybrid Journal  
Journal of Anesthesia & Clinical Research     Open Access   (Followers: 10)
Journal of Anaesthesiology Clinical Pharmacology     Open Access   (Followers: 8)
Journal of Anesthesia     Hybrid Journal   (Followers: 13)
Journal of Anesthesia History     Full-text available via subscription   (Followers: 1)
Journal of Anesthesiology and Clinical Science     Open Access   (Followers: 1)
Journal of Cellular and Molecular Anesthesia     Open Access  
Journal of Clinical Anesthesia     Hybrid Journal   (Followers: 13)
Journal of Critical Care     Hybrid Journal   (Followers: 42)
Journal of Headache and Pain     Open Access   (Followers: 3)
Journal of Neuroanaesthesiology and Critical Care     Open Access   (Followers: 3)
Journal of Neurosurgical Anesthesiology     Hybrid Journal   (Followers: 8)
Journal of Obstetric Anaesthesia and Critical Care     Open Access   (Followers: 22)
Journal of Pain     Hybrid Journal   (Followers: 19)
Journal of Pain and Symptom Management     Hybrid Journal   (Followers: 45)
Journal of Pain Research     Open Access   (Followers: 10)
Journal of Palliative Care     Full-text available via subscription   (Followers: 20)
Journal of Society of Anesthesiologists of Nepal     Open Access   (Followers: 2)
Journal of the Bangladesh Society of Anaesthesiologists     Open Access  
Jurnal Anestesi Perioperatif     Open Access  
Jurnal Anestesiologi Indonesia     Open Access  
Karnataka Anaesthesia Journal     Open Access   (Followers: 2)
Le Praticien en Anesthésie Réanimation     Full-text available via subscription   (Followers: 2)
Local and Regional Anesthesia     Open Access   (Followers: 8)
Medical Gas Research     Open Access   (Followers: 3)
Medycyna Paliatywna w Praktyce     Open Access   (Followers: 1)
OA Anaesthetics     Open Access   (Followers: 3)
Open Anesthesia Journal     Open Access  
Open Journal of Anesthesiology     Open Access   (Followers: 10)
Pain     Hybrid Journal   (Followers: 61)
Pain Clinic     Hybrid Journal   (Followers: 1)
Pain Management     Hybrid Journal   (Followers: 18)
Pain Medicine     Hybrid Journal   (Followers: 13)
Pain Research and Management     Open Access   (Followers: 7)
Pain Research and Treatment     Open Access   (Followers: 2)
Pain Studies and Treatment     Open Access   (Followers: 2)
Research and Opinion in Anesthesia and Intensive Care     Open Access   (Followers: 3)
Revista Chilena de Anestesia     Open Access   (Followers: 1)
Revista Colombiana de Anestesiología     Open Access   (Followers: 1)
Revista Cubana de Anestesiología y Reanimación     Open Access   (Followers: 1)
Revista da Sociedade Portuguesa de Anestesiologia     Open Access  
Revista Española de Anestesiología y Reanimación     Hybrid Journal  
Revista Española de Anestesiología y Reanimación (English Edition)     Full-text available via subscription   (Followers: 2)
Romanian Journal of Anaesthesia and Intensive Care     Open Access   (Followers: 1)
Saudi Journal of Anaesthesia     Open Access   (Followers: 7)
Scandinavian Journal of Pain     Hybrid Journal   (Followers: 1)
Southern African Journal of Anaesthesia and Analgesia     Open Access   (Followers: 8)
Sri Lankan Journal of Anaesthesiology     Open Access   (Followers: 2)
Survey of Anesthesiology     Full-text available via subscription   (Followers: 12)
Techniques in Regional Anesthesia and Pain Management     Hybrid Journal   (Followers: 11)
Topics in Pain Management     Full-text available via subscription   (Followers: 2)
Trends in Anaesthesia and Critical Care     Full-text available via subscription   (Followers: 23)

           

Similar Journals
Journal Cover
Pain
Number of Followers: 61  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0304-3959 - ISSN (Online) 1872-6623
Published by LWW Wolters Kluwer Homepage  [301 journals]
  • Clinical significance of angiotensin-converting enzyme 2 receptors for
           severe acute respiratory syndrome coronavirus 2 (COVID-19) on peripheral
           small-fiber sensory neurons is unknown today
    • Authors: Oaklander; Anne Louise
      Abstract: No abstract available
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Defining populations of dorsal horn interneurons
    • Authors: Graham; Brett A.; Hughes, David I.
      Abstract: imageNo abstract available
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Optimizing telehealth pain care after COVID-19
    • Authors: Tauben; David J.; Langford, Dale J.; Sturgeon, John A.; Rundell, Sean D.; Towle, Cara; Bockman, Christina; Nicholas, Michael
      Abstract: imageNo abstract available
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Interpretation of chronic pain clinical trial outcomes: IMMPACT
           recommended considerations
    • Authors: Smith; Shannon M.; Dworkin, Robert H.; Turk, Dennis C.; McDermott, Michael P.; Eccleston, Christopher; Farrar, John T.; Rowbotham, Michael C.; Bhagwagar, Zubin; Burke, Laurie B.; Cowan, Penney; Ellenberg, Susan S.; Evans, Scott R.; Freeman, Roy L.; Garrison, Louis P.; Iyengar, Smriti; Jadad, Alejandro; Jensen, Mark P.; Junor, Roderick; Kamp, Cornelia; Katz, Nathaniel P.; Kesslak, James Patrick; Kopecky, Ernest A.; Lissin, Dmitri; Markman, John D.; Mease, Philip J.; O'Connor, Alec B.; Patel, Kushang V.; Raja, Srinivasa N.; Sampaio, Cristina; Schoenfeld, David; Singh, Jasvinder; Steigerwald, Ilona; Strand, Vibeke; Tive, Leslie A.; Tobias, Jeffrey; Wasan, Ajay D.; Wilson, Hilary D.
      Abstract: imageInterpreting randomized clinical trials (RCTs) is crucial to making decisions regarding the use of analgesic treatments in clinical practice. In this article, we report on an Initiative on Methods, Measurement, and Pain Assessment in Clinical Trials (IMMPACT) consensus meeting organized by the Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities, and Networks, the purpose of which was to recommend approaches that facilitate interpretation of analgesic RCTs. We review issues to consider when drawing conclusions from RCTs, as well as common methods for reporting RCT results and the limitations of each method. These issues include the type of trial, study design, statistical analysis methods, magnitude of the estimated beneficial and harmful effects and associated precision, availability of alternative treatments and their benefit–risk profile, clinical importance of the change from baseline both within and between groups, presentation of the outcome data, and the limitations of the approaches used.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Effects of using text message interventions for the management of
           musculoskeletal pain: a systematic review
    • Authors: Fritsch; Carolina G.; Ferreira, Paulo H.; Prior, Joanna L.; McLachlan, Andrew J.; Ferreira, Manuela L.
      Abstract: imageMusculoskeletal pain is the greatest cause of disability worldwide. Owing to its increasing prevalence and burden, the importance of affordable treatments has been highlighted. Text message interventions are accessible, low cost, and effective in promoting healthy behaviour and managing chronic diseases. However, little is known about their role in musculoskeletal pain. This systematic review was conducted to appraise the literature on the effects of text messages (as an intervention or a component of an intervention) compared with any control on pain and function in people with musculoskeletal pain (PROSPERO: CRD42018117371). MEDLINE, EMBASE, CINAHL, Cochrane, and PEDro databases were searched from inception to April 2020. Keywords relating to musculoskeletal pain, text messages, and randomised controlled trials were combined. Methodological quality was assessed using the PEDro score. Of the 12,022 studies identified, 11 were included, with a mean PEDro score of 5.4/10 points (SD 1.3). Pooled analyses were not performed because of heterogeneity of interventions and clinical characteristics. When text messages were added to and compared with usual care, some positive effects were found only on treatment adherence. Although small and inconsistent, some positive effects were reported for pain intensity, function, care-seeking behaviour, adherence, and quality of life when text messages were added to multicomponent interventions. Moreover, text message and telephone counselling interventions had similar effects on function. Overall included studies were of limited methodological quality and heterogeneous. However, our results indicate potential benefits of text messages in the treatment of musculoskeletal pain, which need to be confirmed in future trials.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Low back pain and the social determinants of health: a systematic review
           and narrative synthesis
    • Authors: Karran; Emma L.; Grant, Ashley R.; Moseley, G. Lorimer
      Abstract: imageThe social determinants of health (SDH) are known to differentially impact outcomes from many noncommunicable diseases; however, their potential role in low back pain (LBP) is poorly defined. This review endeavours to comprehensively inform the field of their relevance. Our research question was: “How do the broad range of SDH and chronic LBP (CLBP) relate?” The primary aim of this review was to synthesise evidence of relationships between SDH and the frequency or severity of CLBP. Secondary aims were to identify relationships between SDH and LBP-related disability, work absenteeism, and opioid prescription. We included studies involving adult participants that evaluated relationships between one or more of the SDH and CLBP frequency or LBP outcomes (beyond 3 months). Two reviewers screened studies, extracted data, and assessed risk of bias. We synthesized the results narratively and applied PROGRESS to organise our findings. Database searches identified 7018 records. Forty-one studies were included, containing data from 2,161,617 adults from 17 countries. Twenty-four percent and 19% of the relationships included were classified as having a high risk of bias due to confounding and missing data, respectively. We reported 166 relationships representing the majority of the PROGRESS domains. An array of independent and interdependent relationships between the SDH and CLBP were identified with the strongest evidence for associations related to educational attainment and socioeconomic status. Our findings suggest that greater recognition of the contribution of SDH to disparities in LBP outcomes is warranted and this has the potential to usefully inform strategies to impact burden.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • ACE2 and SCARF expression in human dorsal root ganglion nociceptors:
           implications for SARS-CoV-2 virus neurological effects
    • Authors: Shiers; Stephanie; Ray, Pradipta R.; Wangzhou, Andi; Sankaranarayanan, Ishwarya; Tatsui, Claudio Esteves; Rhines, Laurence D.; Li, Yan; Uhelski, Megan L.; Dougherty, Patrick M.; Price, Theodore J.
      Abstract: imageSARS-CoV-2 has created a global crisis. COVID-19, the disease caused by the virus, is characterized by pneumonia, respiratory distress, and hypercoagulation and can be fatal. An early sign of infection is loss of smell, taste, and chemesthesis—loss of chemical sensation. Other neurological effects of the disease have been described, but not explained. It is now apparent that many of these neurological effects (for instance joint pain and headache) can persist for at least months after infection, suggesting a sensory neuronal involvement in persistent disease. We show that human dorsal root ganglion (DRG) neurons express the SARS-CoV-2 receptor, angiotensin-converting enzyme 2 at the RNA and protein level. We also demonstrate that SARS-CoV-2 and coronavirus-associated factors and receptors are broadly expressed in human DRG at the lumbar and thoracic level as assessed by bulk RNA sequencing. ACE2 mRNA is expressed by a subset of nociceptors that express MRGPRD mRNA, suggesting that SARS-CoV-2 may gain access to the nervous system through entry into neurons that form free nerve endings at the outermost layers of skin and luminal organs. Therefore, DRG sensory neurons are a potential target for SARS-CoV-2 invasion of the peripheral nervous system, and viral infection of human nociceptors may cause some of the persistent neurological effects seen in COVID-19.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Intrathecal delivery of hydromorphone vs morphine for refractory cancer
           pain: a multicenter, randomized, single-blind, controlled noninferiority
           trial
    • Authors: Ma; Ke; Jin, Yi; Wang, Lin; Feng, Zhi-Ying; Song, Tao; Yang, Xiao-Qiu; Chen, Fu-Qiang; Duan, Bao-Lin; Huang, You-Qing; Xie, Guang-Lun; Bao, Hong-Guang; Wang, Kun; Xu, Jiang-Tao; Lu, Yan; Liu, Yan-Qing
      Abstract: imageHydromorphone is an alternative to morphine for intrathecal drug delivery system to treat refractory cancer pain; however, there is not enough clinical evidence to prove it. In our study, 233 patients from 12 different pain management centers across China were enrolled, 121 and 112 in the intrathecal hydromorphone (ITHM) and intrathecal morphine (ITMO) groups, respectively. The primary outcome was the clinical success rate, which was defined as ratio of patients achieving ≥50% pain relief. The noninferiority margin was defined as −0.15. Other outcomes included daily visual analogue scale score, breakthrough pain (BTP) incidence, intrathecal dose change, and patient-controlled analgesia bolus count change, GAD-7/PHQ-9. Clinical success was achieved in 85 and 79 of the 121 ITHM patients (70.2%) and 112 ITMO patients (70.5%), respectively. Compared to the corresponding baseline findings, significantly decreased visual analogue scale scores and BTP incidence were noted in both groups. The dose change rate decreased and increased with time in the ITHM and ITMO groups, respectively (ITHM −3.33% vs ITMO 35.4%, P < 0.01, t test) from the third week. The patient-controlled analgesia bolus change rate was lower in the ITHM group than in the ITMO group (ITHM −19.88% vs ITMO 7.79%, P < 0.01, t test) from first week. Our result shows that ITHM is noninferior to ITMO on pain relief to treat refractory cancer pain, however, at different doses and that the doses of morphine tended to increase, whereas those of hydromorphone decreased over time. Hydromorphone offers advantage over morphine in controlling BTP.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • The transition from acute to persistent pain: the identification of
           distinct trajectories among women presenting to an emergency department
    • Authors: Burns; John W.; Janssen, Imke; Lillis, Teresa; Mulcahy, Morgan; Purim-Shem-Tov, Yanina A.; Bruehl, Stephen; Burgess, Helen J.; Fischer, Alexandra; Rim, Katie; Aranda, Frances; Pinkerton, Linzy; Hobfoll, Stevan
      Abstract: imagePosttraumatic stress disorder (PTSD) symptoms and other negative psychosocial factors have been implicated in the transition from acute to persistent pain. Women (N = 375) who presented to an inner-city emergency department (ED) with complaints of acute pain were followed up for 3 months. They completed a comprehensive battery of questionnaires at an initial visit and provided ratings of pain intensity at the site of pain presented in the ED during 3 monthly phone calls. Latent class growth analyses were used to detect possible trajectories of change in pain intensity from the initial visit to 3 months later. A 3-trajectory solution was found, which identified 3 groups of participants. One group (early recovery; n = 93) had recovered to virtually no pain by the initial visit, whereas a second group (delayed recovery; n = 120) recovered to no pain only after 1 month. A third group (no recovery; n = 162) still reported elevated pain at 3 months after the ED visit. The no recovery group reported significantly greater PTSD symptoms, anger, sleep disturbance, and lower social support at the initial visit than both the early recovery and delayed recovery groups. Results suggest that women with high levels of PTSD symptoms, anger, sleep disturbance, and low social support who experience an acute pain episode serious enough to prompt an ED visit may maintain elevated pain at this pain site for at least 3 months. Such an array of factors may place women at an increased risk of developing persistent pain following acute pain.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Peripheral tetrahydrobiopterin is involved in the pathogenesis of
           mechanical hypersensitivity in a rodent postsurgical pain model
    • Authors: Arai; Hirokazu; Takahashi, Rina; Sakamoto, Yoshiaki; Kitano, Tatsuya; Mashita, Okishi; Hara, Satoshi; Yoshikawa, Satoru; Kawasaki, Koh; Ichinose, Hiroshi
      Abstract: imageBecause treatment for postsurgical pain (PSP) remains a major unmet medical need, the emergence of safe and innovative nonopioid drugs has been strongly coveted. Tetrahydrobiopterin (BH4) is an interesting molecule for gaining a better understanding the pathological mechanism of neuropathic pain. However, whether BH4 and its pathway are involved in the pathogenesis of PSP remains unclear. In this study, we found that early in a rat paw incision model, the gene expression of GTP cyclohydrolase 1 (GTPCH) and sepiapterin reductase (SPR), BH4-producing enzymes in the de novo pathway, were significantly increased in incised compared with naive paw skin. Although a significant increase in GTPCH protein levels was observed in incised paw skin until only 1 day after incision, a significant increase in BH4 levels was observed until 7 days after incision. In vivo, Spr-knockout mice showed an antinociceptive phenotype in the hind paw incision compared with the wild-type and Spr heterozygote groups. Furthermore, QM385, the SPR inhibitor, showed a significant dose-dependent, antinociceptive effect, which was supported by a reduction in BH4 levels in incised skin tissues, with no apparent adverse effects. Immunohistochemical analysis demonstrated that macrophages expressing GTPCH protein were increased around the injury site in the rat paw incision model. These results indicate that BH4 is involved in the pathogenesis of PSP, and that inhibition of the BH4 pathway could provide a new strategy for the treatment of acute PSP.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Acupuncture of different treatment frequencies in knee osteoarthritis: a
           pilot randomised controlled trial
    • Authors: Lin; Lu-Lu; Tu, Jian-Feng; Wang, Li-Qiong; Yang, Jing-Wen; Shi, Guang-Xia; Li, Jin-Ling; Zhang, Na; Shao, Jia-Kai; Zou, Xuan; Liu, Cun-Zhi
      Abstract: imageThis 16-week randomised controlled trial (8-week treatment followed by 8-week follow-up) evaluated the symptomatic improvement in patients with knee osteoarthritis on 3 sessions per week of acupuncture (TSWA) compared to 1 session per week of acupuncture (OSWA). Sixty participants were randomised to either the TSWA or the OSWA group in a 1:1 ratio. The primary outcome was response rate, defined as the percentage of participants achieving ≥2 points decrease on the numerical rating scale (NRS) and ≥6 points decrease in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) function score at week 8 compared with baseline. Additional outcomes included response rates at weeks 4 and 16, NRS, WOMAC, Patient Global Assessment, 12-item Short Form Health Survey (SF-12), and treatment credibility and expectancy. No significant difference was seen in response rate between TSWA and OSWA groups at week 8 (64.7% vs 50.0%; difference, 14.7 percentage points [95% CI, −10.1 to 39.4 percentage points], P = 0.435). At weeks 4 and 16, the TSWA group had higher response rates than the OSWA group (week-4: difference, 44.7 percentage points [95% CI, 23.2-66.1 percentage points], P = 0.001; week-16: difference, 46.0 percentage points [95% CI, 24.4-67.6 percentage points], P < 0.001). Participants in the TSWA group experienced significantly greater improvements in NRS, WOMAC function, and Patient Global Assessment than those in the OSWA group. There were no significant between-group differences in WOMAC stiffness and SF-12. In summary, TSWA immediately improved knee pain and dysfunction compared with OSWA. In addition, the benefit of TSWA persists throughout follow-up.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Repetitive stress in mice causes migraine-like behaviors and calcitonin
           
    • Authors: Avona; Amanda; Mason, Bianca N.; Lackovic, Jacob; Wajahat, Naureen; Motina, Marina; Quigley, Lilyana; Burgos-Vega, Carolina; Moldovan Loomis, Cristina; Garcia-Martinez, Leon F.; Akopian, Armen N.; Price, Theodore J.; Dussor, Gregory
      Abstract: imageMigraine is one of the most disabling disorders worldwide but the underlying mechanisms are poorly understood. Stress is consistently reported as a common trigger of migraine attacks. Here, we show that repeated stress in mice causes migraine-like behaviors that are responsive to a migraine therapeutic. Adult female and male mice were exposed to 2 hours of restraint stress for 3 consecutive days, after which they demonstrated facial mechanical hypersensitivity and facial grimace responses that were resolved by 14 days after stress. Hypersensitivity or grimace was not observed in either control animals or those stressed for only 1 day. After return to baseline, the nitric oxide donor sodium nitroprusside (SNP; 0.1 mg/kg) elicited mechanical hypersensitivity in stressed but not in control animals, demonstrating the presence of hyperalgesic priming. This suggests the presence of a migraine-like state, because nitric oxide donors are reliable triggers of attacks in migraine patients but not controls. The stress paradigm also caused priming responses to dural pH 7.0 treatment. The presence of this primed state after stress is not permanent because it was no longer present at 35 days after stress. Finally, mice received either the calcitonin gene-related peptide monoclonal antibody ALD405 (10 mg/kg) 24 hours before SNP or a coinjection of sumatriptan (0.6 mg/kg). ALD405, but not sumatriptan, blocked the facial hypersensitivity due to SNP. This stress paradigm in mice and the subsequent primed state caused by stress allow further preclinical investigation of mechanisms contributing to migraine, particularly those caused by common triggers of attacks.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • A modulator of the low-voltage-activated T-type calcium channel that
           reverses HIV glycoprotein 120-, paclitaxel-, and spinal nerve
           ligation-induced peripheral neuropathies
    • Authors: Cai; Song; Tuohy, Peter; Ma, Chunlong; Kitamura, Naoya; Gomez, Kimberly; Zhou, Yuan; Ran, Dongzhi; Bellampalli, Shreya Sai; Yu, Jie; Luo, Shizhen; Dorame, Angie; Yen Ngan Pham, Nancy; Molnar, Gabriella; Streicher, John M.; Patek, Marcel; Perez-Miller, Samantha; Moutal, Aubin; Wang, Jun; Khanna, Rajesh
      Abstract: imageThe voltage-gated calcium channels CaV3.1–3.3 constitute the T-type subfamily, whose dysfunctions are associated with epilepsy, psychiatric disorders, and chronic pain. The unique properties of low-voltage-activation, faster inactivation, and slower deactivation of these channels support their role in modulation of cellular excitability and low-threshold firing. Thus, selective T-type calcium channel antagonists are highly sought after. Here, we explored Ugi-azide multicomponent reaction products to identify compounds targeting T-type calcium channel. Of the 46 compounds tested, an analog of benzimidazolonepiperidine—5bk (1-{1-[(R)-{1-[(1S)-1-phenylethyl]-1H-1,2,3,4-tetrazol-5-yl}(thiophen-3-yl)methyl]piperidin-4-yl}-2,3-dihydro-1H-1,3-benzodiazol-2-one) modulated depolarization-induced calcium influx in rat sensory neurons. Modulation of T-type calcium channels by 5bk was further confirmed in whole-cell patch clamp assays in dorsal root ganglion (DRG) neurons, where pharmacological isolation of T-type currents led to a time- and concentration-dependent regulation with a low micromolar IC50. Lack of an acute effect of 5bk argues against a direct action on T-type channels. Genetic knockdown revealed CaV3.2 to be the isoform preferentially modulated by 5bk. High voltage-gated calcium, as well as tetrodotoxin-sensitive and -resistant sodium, channels were unaffected by 5bk. 5bk inhibited spontaneous excitatory postsynaptic currents and depolarization-evoked release of calcitonin gene-related peptide from lumbar spinal cord slices. Notably, 5bk did not bind human mu, delta, or kappa opioid receptors. 5bk reversed mechanical allodynia in rat models of HIV-associated neuropathy, chemotherapy-induced peripheral neuropathy, and spinal nerve ligation-induced neuropathy, without effects on locomotion or anxiety. Thus, 5bk represents a novel T-type modulator that could be used to develop nonaddictive pain therapeutics.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Determinants of the use of nonpharmacological analgesia for labor pain
           management: a national population-based study
    • Authors: Merrer; Jade; Chantry, Anne A.; Khoshnood, Babak; Blondel, Béatrice; Le Ray, Camille; Bonnet, Marie-Pierre
      Abstract: imageBesides neuraxial analgesia, nonpharmacological methods are also proposed to help women coping with pain during labor. We aimed to identify the individual and organizational factors associated with the use of nonpharmacological analgesia for labor pain management. Women who attempted vaginal delivery with labor analgesia were selected among participants included in the 2016 National Perinatal Survey, a population-based cross-sectional study. Labor analgesia was studied as neuraxial analgesia alone, nonpharmacological analgesia alone, and neuraxial and nonpharmacological analgesia combined. The associations were studied using multilevel multinomial logistic regression. Among the 9231 women included, 62.4% had neuraxial analgesia alone, 6.4% had nonpharmacological analgesia alone, and 31.2% had both. Nonpharmacological analgesia alone or combined with neuraxial analgesia were both associated with high educational level (adjusted odds ratio 1.55; 95% confidence interval [CI], 1.08-2.23 and 1.39; 95% CI, 1.18-1.63), antenatal preference to deliver without neuraxial analgesia, and public maternity unit status. Nonpharmacological analgesia alone was more frequent among multiparous women, and in maternity units with an anesthesiologist not dedicated to delivery unit (1.57; 95% CI, 1.16-2.12) and with the lowest midwife workload (2.15; 95% CI, 1.43-3.22). Neuraxial and nonpharmacological analgesia combined was negatively associated with inadequate prenatal care (0.70; 95% CI, 0.53-0.94). In France, most women who had nonpharmacological analgesia during labor used it as a complementary method to neuraxial analgesia. The use of nonpharmacological analgesia combined with neuraxial analgesia mainly depends on the woman's preference, but also on socioeconomic factors, quality of prenatal care, and care organization.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Neuronal/astrocytic expression of chemokine (C-C motif) ligand 2 is
           associated with monocyte/macrophage recruitment in male chronic pelvic
           pain
    • Authors: Liu; Zhiqiang; Murphy, Stephen F.; Wong, Larry; Schaeffer, Anthony J.; Thumbikat, Praveen
      Abstract: imageChronic pelvic pain syndrome is a multisymptom syndrome with unknown etiology. The experimental autoimmune prostatitis (EAP) mouse model of chronic pelvic pain syndrome is associated with immune cell infiltration into the prostate, expression of C-C chemokine ligand 2 (CCL2), and neuroinflammation in the spinal cord. Here, we studied CCL2 expression in tissues along the nociceptive pathway and its association with neuroimmune cells during pain development. Examination of prostate tissues at days 14 and 28 after EAP induction revealed CCL2 expression was increased in epithelial cells and was associated with increased numbers of macrophages lying in close apposition to PGP9.5-positive afferent neuronal fibers. C-C Chemokine ligand 2 immunoreactivity was elevated to a similar degree in the dorsal root ganglia at day 14 and day 28. D14 of EAP was associated with elevated IBA1+ cells in the dorsal root ganglia that were not evident at D28. Adoptive transfer of green fluorescent protein+ leukocytes into EAP mice demonstrated monocytes are capable of infiltrating the spinal cord from peripheral blood with what seemed to be a proinflammatory phenotype. In the lower dorsal spinal cord, CCL2 expression localized to NeuN expressing neurons and GFAP-expressing astrocytes. Myeloid derived cell infiltration into the spinal cord in EAP was observed in the L6-S2 dorsal horn. Myeloid-derived CD45+ IBA1+ cells were localized with IBA1+ TMEM199+ microglia in the dorsal horn of the spinal cord in EAP, with intimate association of the 2 cell types suggesting cell–cell interactions. Finally, intrathecal administration of liposomal clodronate ameliorated pelvic pain symptoms, suggesting a mechanistic role for macrophages and microglia in chronic pelvic pain.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Peripheral nerve injury and sensitization underlie pain associated with
           oral cancer perineural invasion
    • Authors: Salvo; Elizabeth; Campana, Wendy M.; Scheff, Nicole N.; Nguyen, Tu Huu; Jeong, Se-hee; Wall, Ian; Wu, Angie K.; Zhang, Susanna; Kim, Hyesung; Bhattacharya, Aditi; Janal, Malvin N.; Liu, Cheng; Albertson, Donna G.; Schmidt, Brian L.; Dolan, John C.; Schmidt, Robert E.; Boada, M. Danilo; Ye, Yi
      Abstract: image : Cancer invading into nerves, termed perineural invasion (PNI), is associated with pain. Here, we show that oral cancer patients with PNI report greater spontaneous pain and mechanical allodynia compared with patients without PNI, suggesting that unique mechanisms drive PNI-induced pain. We studied the impact of PNI on peripheral nerve physiology and anatomy using a murine sciatic nerve PNI model. Mice with PNI exhibited spontaneous nociception and mechanical allodynia. Perineural invasion induced afterdischarge in A high-threshold mechanoreceptors (HTMRs), mechanical sensitization (ie, decreased mechanical thresholds) in both A and C HTMRs, and mechanical desensitization in low-threshold mechanoreceptors. Perineural invasion resulted in nerve damage, including axon loss, myelin damage, and axon degeneration. Electrophysiological evidence of nerve injury included decreased conduction velocity, and increased percentage of both mechanically insensitive and electrically unexcitable neurons. We conclude that PNI-induced pain is driven by nerve injury and peripheral sensitization in HTMRs.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Daily pain catastrophizing predicts less physical activity and more
           sedentary behavior in older adults with osteoarthritis
    • Authors: Zhaoyang; Ruixue; Martire, Lynn M.; Darnall, Beth D.
      Abstract: imageMusculoskeletal disorders such as knee osteoarthritis (OA) are the primary cause of chronic pain in older adults. Recommended self-management strategies for knee OA include staying physically active in the face of pain, but many patients avoid activities they are capable of doing. The overall purpose of this study was to examine the extent to which daily pain catastrophizing, a maladaptive coping strategy, could influence OA patients' physical activity and sedentary behavior. The current study used data from 143 older knee OA patients who completed electronic daily diaries for 22 days and wore an accelerometer to capture physical activity and sedentary behavior. At the beginning of each day, patients reported their pain catastrophizing regarding the day ahead. Results from multilevel models demonstrated that on mornings when patients catastrophized more than usual about their pain in the day ahead, they spent more time in sedentary behavior and engaged in fewer minutes of moderate to vigorous physical activity that day. Cross-day lagged analyses further showed that the effect of morning pain catastrophizing on subsequent sedentary behavior extended to the next day. More time spent in sedentary behavior, in turn, contributed to greater pain catastrophizing the next morning. These findings support the mechanistic role of daily pain catastrophizing in the avoidance of physical activity for older OA patients, and suggest that effective interventions for pain catastrophizing may also reduce sedentary behavior and enhance physical activity, with longer-term benefits for pain management, physical function, and overall health.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Presurgical risk model for chronic postsurgical pain based on 6 clinical
           predictors: a prospective external validation
    • Authors: Montes; Antonio; Roca, Gisela; Cantillo, Jordi; Sabate, Sergi; for the GENDOLCAT Study Group
      Abstract: imageNo externally validated presurgical risk score for chronic postsurgical pain (CPSP) is currently available. We tested the generalizability of a six-factor risk model for CPSP developed from a prospective cohort of 2929 patients in 4 surgical settings. Seventeen centers enrolled 1225 patients scheduled for inguinal hernia repair, hysterectomy (vaginal or abdominal), or thoracotomy. The 6 clinical predictors were surgical procedure, younger age, physical health (Short Form Health Survey-12), mental health (Short Form Health Survey-12), preoperative pain in the surgical field, and preoperative pain in another area. Chronic postsurgical pain was confirmed by physical examination at 4 months. The model's discrimination (c-statistic), calibration, and diagnostic accuracy (sensitivity, specificity, and positive and negative likelihood ratios) were calculated to assess geographic and temporal transportability in the full cohort and 2 subsamples (historical and new centers). The full data set after exclusions and losses included 1088 patients; 20.6% had developed CPSP at 4 months. The c-statistics (95% confidence interval) were similar in the full validation sample and the 2 subsamples: 0.69 (0.65-0.73), 0.69 (0.63-0.74), and 0.68 (0.63-0.74), respectively. Calibration was good (slope b and intercept close to 1 and 0, respectively, and nonsignificance in the Hosmer–Lemeshow goodness-of-fit test). The validated model based on 6 clinical factors reliably identifies risk for CPSP risk in about 70% of patients undergoing the surgeries studied, allowing surgeons and anesthesiologists to plan and initiate risk-reduction strategies in routine practice and researchers to screen for risk when randomizing patients in trials.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Loss of SLC9A6/NHE6 impairs nociception in a mouse model of Christianson
           syndrome
    • Authors: Petitjean; Hugues; Fatima, Tarheen; Mouchbahani-Constance, Stephanie; Davidova, Albena; Ferland, Catherine E.; Orlowski, John; Sharif-Naeini, Reza
      Abstract: imageChildren diagnosed with Christianson syndrome (CS), a rare X-linked neurodevelopmental disorder characterized by intellectual disability, epilepsy, ataxia, and mutism, also suffer from hyposensitivity to pain. This places them at risk of sustaining serious injuries that often go unattended. Christianson syndrome is caused by mutations in the alkali cation/proton exchanger SLC9A6/NHE6 that regulates recycling endosomal pH homeostasis and trafficking. Yet, it remains unclear how defects in this transporter lead to altered somatosensory functions. In this study, we validated a Nhe6 knockout (KO) mouse as a model of CS and used it to identify the cellular mechanisms underlying the elevated pain tolerance observed in CS patients. Within the central nervous system, NHE6 immunolabelling is detected in a small percentage of cortical neurons involved in pain processing, including those within the primary somatosensory and the anterior cingulate cortices as well as the periaqueductal gray. Interestingly, it is expressed in a larger percentage of nociceptors. Behaviourally, Nhe6 KO mice have decreased nocifensive responses to acute noxious thermal, mechanical, and chemical (ie, capsaicin) stimuli. The reduced capsaicin sensitivity in the KO mice correlates with a decreased expression of the transient receptor potential channel TRPV1 at the plasma membrane and capsaicin-induced Ca2+ influx in primary cultures of nociceptors. These data indicate that NHE6 is a significant determinant of nociceptor function and pain behaviours, vital sensory processes that are impaired in CS.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Studies on CRMP2 SUMOylation–deficient transgenic mice identify
           sex-specific Nav1.7 regulation in the pathogenesis of chronic neuropathic
           pain
    • Authors: Moutal; Aubin; Cai, Song; Yu, Jie; Stratton, Harrison J.; Chefdeville, Aude; Gomez, Kimberly; Ran, Dongzhi; Madura, Cynthia L.; Boinon, Lisa; Soto, Maira; Zhou, Yuan; Shan, Zhiming; Chew, Lindsey A.; Rodgers, Kathleen E.; Khanna, Rajesh
      Abstract: imageThe sodium channel Nav1.7 is a master regulator of nociceptive input into the central nervous system. Mutations in this channel can result in painful conditions and produce insensitivity to pain. Despite being recognized as a “poster child” for nociceptive signaling and human pain, targeting Nav1.7 has not yet produced a clinical drug. Recent work has illuminated the Nav1.7 interactome, offering insights into the regulation of these channels and identifying potentially new druggable targets. Among the regulators of Nav1.7 is the cytosolic collapsin response mediator protein 2 (CRMP2). CRMP2, modified at lysine 374 (K374) by addition of a small ubiquitin-like modifier (SUMO), bound Nav1.7 to regulate its membrane localization and function. Corollary to this, preventing CRMP2 SUMOylation was sufficient to reverse mechanical allodynia in rats with neuropathic pain. Notably, loss of CRMP2 SUMOylation did not compromise other innate functions of CRMP2. To further elucidate the in vivo role of CRMP2 SUMOylation in pain, we generated CRMP2 K374A knock-in (CRMP2K374A/K374A) mice in which Lys374 was replaced with Ala. CRMP2K374A/K374A mice had reduced Nav1.7 membrane localization and function in female, but not male, sensory neurons. Behavioral appraisal of CRMP2K374A/K374A mice demonstrated no changes in depressive or repetitive, compulsive-like behaviors and a decrease in noxious thermal sensitivity. No changes were observed in CRMP2K374A/K374A mice to inflammatory, acute, or visceral pain. By contrast, in a neuropathic model, CRMP2K374A/K374A mice failed to develop persistent mechanical allodynia. Our study suggests that CRMP2 SUMOylation–dependent control of peripheral Nav1.7 is a hallmark of chronic, but not physiological, neuropathic pain.
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Health anxiety, health-related life events, and somatization during
           COVID-19 pandemic can increase chronic pain
    • Authors: Chaturvedi; Santosh K.
      Abstract: No abstract available
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
  • Reply to Chaturvedi
    • Authors: Fitzcharles; Mary-Ann; Clauw, Daniel J.; Häuser, Winfried; Cohen, Steven P.
      Abstract: No abstract available
      PubDate: Sun, 01 Nov 2020 00:00:00 GMT-
       
 
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