-
Mashup Score: 7
nociceptive signals dependent on spinal NMDAR through several possible mechanisms. Through behavioral, pharmacological, and molecular approaches, our study in male rats has revealed several key findings: (1) neurons located in spinal cord laminae I and II express functional Panx1 channels in both neuropathic and sham rats. These channels can open (indicated by YOPRO-1 uptake) through the stimulation of NMDARs with intrathecal NMDA; (2) intrathecal NMDA leads to increased expression of pSrc and pPanx1 in dorsal horn neurons. This elevation exacerbates existing mechanical hyperalgesia in nerve-injured rats; (3) inhibition of Src with intrathecal PP2 or blockade of Panx1 with intrathecal 10Panx effectively mitigates NMDA-induced effects and reduces the spontaneous mechanical hyperalgesia of nerve-injured rats. Notably, while 10Panx successfully alleviates hyperalgesia, it does not alter pSrc expression; and (4) NMDA-stimulated YOPRO-1 uptake in neurons of laminae I-II of spinal cord slice
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
-
Mashup Score: 7
nociceptive signals dependent on spinal NMDAR through several possible mechanisms. Through behavioral, pharmacological, and molecular approaches, our study in male rats has revealed several key findings: (1) neurons located in spinal cord laminae I and II express functional Panx1 channels in both neuropathic and sham rats. These channels can open (indicated by YOPRO-1 uptake) through the stimulation of NMDARs with intrathecal NMDA; (2) intrathecal NMDA leads to increased expression of pSrc and pPanx1 in dorsal horn neurons. This elevation exacerbates existing mechanical hyperalgesia in nerve-injured rats; (3) inhibition of Src with intrathecal PP2 or blockade of Panx1 with intrathecal 10Panx effectively mitigates NMDA-induced effects and reduces the spontaneous mechanical hyperalgesia of nerve-injured rats. Notably, while 10Panx successfully alleviates hyperalgesia, it does not alter pSrc expression; and (4) NMDA-stimulated YOPRO-1 uptake in neurons of laminae I-II of spinal cord slice
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet-
In this week’s #PAIN Featured Image, Zepeda-Morales et al. depict Panx1 channel as a downstream effector of Src-mediated signaling after NMDAR activation (with NMDA or glutamate) in dorsal horn laminae I-II neurons during nerve-injured pain. Learn more at https://t.co/Z9XgUjqmqd https://t.co/BoKPTAIUCz
-
-
Mashup Score: 5
evaluate the performance of individual and baseline quartile-stratified MCIDs. The current study included data from 346 persons with baseline and 12-month postoperative outcome data from KASTPain, a no-effect randomized clinical trial conducted on persons with knee arthroplasty and pain catastrophizing. Subgroup trajectories from LCGC were used as a gold standard comparator. Minimal clinically important difference–specific trajectories of recovery were calculated for the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain, Disability and EuroQol-5 Dimension Visual Analogue Scale of self-reported health. The latent Kappa (Kl) chance-corrected agreement between MCIDs and LCGCs were estimated to indicate which MCID method was best at detecting important change. For all 3 outcomes, the average latent class probabilities ranged from 0.90 to 0.99, justifying the use of LCGCs as a gold standard. The Kl for LCGC and individual MCIDs ranged from 0.21 (95% CI = 0.13, 0.28
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
-
Mashup Score: 1A revisit of soreness and acidosis-related pain : PAIN - 5 day(s) ago
An abstract is unavailable.
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
-
Mashup Score: 15
hared environmental or genetic factors might account for any observed association. Around 3000 participants from the TwinsUK with CWP information and measures of carotid–femoral pulse wave velocity (cfPWV), carotid intima–media thickness (cIMT), and plaque were considered. The relationship between CWP and cfPWV, cIMT, and plaque was determined. UK Biobank data were used to replicate the association. Cholesky decomposition and multivariate pathway twin models were examined. Using a 2-sample Mendelian randomisation approach, the causal association between CWP and coronary artery disease was assessed. TwinsUK participants demonstrated a significant association between CWP and increased cfPWV consistent with arterial stiffening (OR = 1.35, P-value = 0.012), as well as the presence of carotid plaque (OR = 1.45, P-value = 0.8e-5). The twin modelling showed a common latent component and pathway underlying CWP, cfPWV, and carotid plaque, with genetic factors accounting for 68% and 90% of the l
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet-
Kazemi Naeini et al. find that a common latent factor mediates chronic widespread pain (CWP), arterial stiffness, and atheromatous plaque association, explaining 65% of CWP, 26% of carotid-femoral pulse wave velocity, 34% of plaque genetic variations #PAIN https://t.co/8q4wueo2am https://t.co/uBiVcnZuEx
-
-
Mashup Score: 3
in, but more intense light stimuli would not produce perceptual radiation. Fifty healthy volunteers (27 females, 23 males, ages 14-44 years) participated in this study wherein noxious stimuli (43, 45, 47, and 49°C) were applied to glabrous (hand) and hairy skin (forearm) skin with 5-second and 10-second durations. Also, visual stimuli displayed on the target bodily area were used as a control. Participants provided pain (and light) spatial extent ratings as well as pain (and light) intensity ratings. In the extent rating procedure, participants adjusted the extent of the square displayed on the screen with the extent of pain (or light) that they experienced. Pain extent ratings showed statistically significant radiation of pain indicated by 12.42× greater spatial spread of pain (pain extent) than the area of the stimulation with 49°C (P < 0.001), in contrast to visual ratings, which closely approximated the size of the stimulus (1.22×). Pain radiation was more pronounced in hairy than
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
-
Mashup Score: 2
ology of neuropathic pain. A standardised quantitative sensory testing protocol was used to categorize participants based on sensory profile. We performed genome-wide association study, and in a subset of participants, we undertook whole-exome sequencing targeting analyses of 45 known pain-related genes. In the genome-wide association study of diabetic neuropathy (N = 1541), a top significant association was found at the KCNT2 locus linked with pain intensity (rs114159097, P = 3.55 × 10−8). Gene-based analysis revealed significant associations between LHX8 and TCF7L2 and neuropathic pain. Polygenic risk score for depression was associated with neuropathic pain in all participants. Polygenic risk score for C-reactive protein showed a positive association, while that for fasting insulin showed a negative association with neuropathic pain, in individuals with diabetic polyneuropathy. Gene burden analysis of candidate pain genes supported significant associations between rare variants in S
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
-
Mashup Score: 2
ology of neuropathic pain. A standardised quantitative sensory testing protocol was used to categorize participants based on sensory profile. We performed genome-wide association study, and in a subset of participants, we undertook whole-exome sequencing targeting analyses of 45 known pain-related genes. In the genome-wide association study of diabetic neuropathy (N = 1541), a top significant association was found at the KCNT2 locus linked with pain intensity (rs114159097, P = 3.55 × 10−8). Gene-based analysis revealed significant associations between LHX8 and TCF7L2 and neuropathic pain. Polygenic risk score for depression was associated with neuropathic pain in all participants. Polygenic risk score for C-reactive protein showed a positive association, while that for fasting insulin showed a negative association with neuropathic pain, in individuals with diabetic polyneuropathy. Gene burden analysis of candidate pain genes supported significant associations between rare variants in S
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
-
Mashup Score: 2
ology of neuropathic pain. A standardised quantitative sensory testing protocol was used to categorize participants based on sensory profile. We performed genome-wide association study, and in a subset of participants, we undertook whole-exome sequencing targeting analyses of 45 known pain-related genes. In the genome-wide association study of diabetic neuropathy (N = 1541), a top significant association was found at the KCNT2 locus linked with pain intensity (rs114159097, P = 3.55 × 10−8). Gene-based analysis revealed significant associations between LHX8 and TCF7L2 and neuropathic pain. Polygenic risk score for depression was associated with neuropathic pain in all participants. Polygenic risk score for C-reactive protein showed a positive association, while that for fasting insulin showed a negative association with neuropathic pain, in individuals with diabetic polyneuropathy. Gene burden analysis of candidate pain genes supported significant associations between rare variants in S
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
-
Mashup Score: 32
, surgeries, pharmacology, physiotherapy/exercise). The Toolkit for Optimal Recovery (TOR) is a brief, live video mind–body program designed to directly target pain catastrophizing and anxiety in patients with recent traumatic orthopedic injury to prevent persistent disability. This study was a secondary analysis from a recently completed multisite feasibility RCT of TOR compared with Minimally Enhanced Usual Care (MEUC). We examined the extent to which the purported mechanisms of change in TOR (ie, reductions in pain catastrophizing and anxiety) mediate improvement in physical function. Participants with a recent orthopedic trauma (N = 195; Mage = 44.01) recruited from 4 Level I trauma centers were randomized to TOR or MEUC and completed self-report surveys at baseline, postintervention, and follow-up (3 months after baseline). A multiple mediation analysis using multilevel structural equation modeling (MSEM) demonstrated that pain catastrophizing (b = −5.22, SE = 3.02, Bootstrapped 9
Source: journals.lww.comCategories: General Medicine News, RheumatologyTweet
In this week’s #PAIN Featured Image, Zepeda-Morales et al. depict Panx1 channel as a downstream effector of Src-mediated signaling after NMDAR activation (with NMDA or glutamate) in dorsal horn laminae I-II neurons during nerve-injured pain. Learn more at https://t.co/Z9XgUjqmqd https://t.co/BoKPTAIUCz