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Han D, Park MY, Choi J, Shin H, Behrens R, Rhim S. Evaluation of force pain thresholds to ensure collision safety in worker-robot collaborative operations. Front Robot AI 2024; 11:1374999. [PMID: 38651053 PMCID: PMC11033501 DOI: 10.3389/frobt.2024.1374999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
With the growing demand for robots in the industrial field, robot-related technologies with various functions have been introduced. One notable development is the implementation of robots that operate in collaboration with human workers to share tasks, without the need of any physical barriers such as safety fences. The realization of such collaborative operations in practice necessitates the assurance of safety if humans and robots collide. Thus, it is important to establish criteria for such collision scenarios to ensure robot safety and prevent injuries. Collision safety must be ensured in both pinching (quasi-static contact) and impact (transient contact) situations. To this end, we measured the force pain thresholds associated with impacts and evaluated the biomechanical limitations. This measurements were obtained through clinical trials involving physical collisions between human subjects and a device designed for generating impacts, and the force pain thresholds associated with transient collisions between humans and robots were analyzed. Specifically, the force pain threshold was measured at two different locations on the bodies of 37 adults aged 19-32 years, using two impactors with different shapes. The force pain threshold was compared with the results of other relevant studies. The results can help identify biomechanical limitations in a precise and reliable manner to ensure the safety of robots in collaborative applications.
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Affiliation(s)
- D. Han
- Department of Mechanical Engineering, Kyung Hee University, Yongin-si, Republic of Korea
- Robotic Systems, Fraunhofer IFF, Magdeburg, Germany
| | - M. Y. Park
- Department of Industry-Academic Cooperation Foundation, Kyung Hee University, Yongin-si, Republic of Korea
| | - J. Choi
- Safetics, Seoul, Republic of Korea
| | - H. Shin
- Safetics, Seoul, Republic of Korea
| | - R. Behrens
- Robotic Systems, Fraunhofer IFF, Magdeburg, Germany
| | - S. Rhim
- Department of Mechanical Engineering, Kyung Hee University, Yongin-si, Republic of Korea
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Zhuang X, Li M, Xu D, Lin S, Yang Z, Xu T, Yin J. Comprehensive analysis of pain genes in prognosis of kidney renal clear cell carcinoma and tumor immunotherapy: A comprehensive bioinformatic study. Health Sci Rep 2024; 7:e1884. [PMID: 38352696 PMCID: PMC10862147 DOI: 10.1002/hsr2.1884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 12/09/2023] [Accepted: 01/23/2024] [Indexed: 02/16/2024] Open
Abstract
Background The effect of pain genes (NAV1, EHMT2, SP1, SLC6A4, COMT, OPRM1, OPRD1, CYP2D6, and CYP3A4) have not been reported previously in kidney renal clear cell carcinoma (KIRC) patients and thus we made a comprehensive analysis of pain genes in the prognosis of KIRC and tumor immunotherapy. Methods In this study, TCGA, Kaplan-Meier plotter, Metascape, STRING, Human Protein Atlas, Single Cell Expression Atlas database, LinkedOmics, cBioPortal, MethSurv, CancerSEA, COSMIC database and R package (ggplot2, version 3.3.3) were used for comprehensive analysis of pain genes in KIRC. Pearson and Spearman correlation coefficients were for co-expression analysis. Immunotherapy and TISIDB database were used for tumor Immunotherapy. Results Representative pain genes (SP1, SLC6A4, COMT, OPRD1, CYP2D6, and CYP3A4) were statistically significant (p < 0.0001) in the prognosis of KIRC. Immunotherapy (anti-PD-1 therapy, anti-PD-L1 therapy, and anti-CTLA4 therapy) and immunomodulator (immunoinhibitor, immunostimulator, and MHC molecule) in KIRC were significant associated with pain genes (SP1, SLC6A4, COMT, OPRD1, CYP2D6, and CYP3A4), which were the important addition to clinical decision making for patients. Conclusions Our study uncovered a mechanism for the effect of pain genes on KIRC outcome via the modulation of associated co-expression gene networks, gene variation, and tumor Immunotherapy.
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Affiliation(s)
- Xiao‐Yu Zhuang
- Department of AnesthesiologySecond Affiliated Hospital of Shantou University Medical CollegeShantouPeople's Republic of China
| | - Ming Li
- Department of UrologySecond Affiliated Hospital of Shantou University Medical CollegeShantouPeople's Republic of China
| | - Da‐Ming Xu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for CancerSun Yat‐sen University Cancer CenterGuangzhouPeople's Republic of China
- Department of UrologySun Yat‐sen University Cancer CenterGuangzhouPeople's Republic of China
| | - Shu‐Bin Lin
- Department of UrologySecond Affiliated Hospital of Shantou University Medical CollegeShantouPeople's Republic of China
| | - Zheng‐Liang Yang
- Department of UrologySecond Affiliated Hospital of Shantou University Medical CollegeShantouPeople's Republic of China
| | - Teng‐Yu Xu
- Department of UrologySecond Affiliated Hospital of Shantou University Medical CollegeShantouPeople's Republic of China
| | - Jun Yin
- Department of Clinical Laboratory MedicineSecond Affiliated Hospital of Shantou University Medical CollegeShantouPeople's Republic of China
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Meyfarth SRS, Tavares JDS, Guimarães LDS, Silva EAB, Gaio DC, Ecker MB, Brancher JA, Küchler EC, Silva-Sousa AC, de Sousa-Neto MD, Antunes LAA, Antunes LS. Association between single-nucleotide polymorphisms in serotonin receptor 2A and melatonin receptor 1A genes and pain after root canal treatment. Int Endod J 2023; 56:1077-1091. [PMID: 37323077 DOI: 10.1111/iej.13946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 06/17/2023]
Abstract
AIM This study aimed to investigate whether single-nucleotide polymorphisms (SNPs) in the genes encoding 5-HTR2A (5-Hydroxytryptamine (serotonin) receptor 2A) and MTNR1A (melatonin receptor 1A) may contribute to postoperative pain perception after root canal treatment. We hypothesised that SNPs in HTR2A and MTNR1A genes were associated with postoperative pain after root canal treatment. METHODOLOGY This genetic cohort study enrolled patients with single-rooted teeth diagnosed with pulp necrosis and asymptomatic apical periodontitis before root canal treatment. Root canal treatment was performed in one session using a standardized protocol. Postoperative pain and tenderness were assessed using a visual analogue scale (recorded every day for 7 days and on the 14th and 30th days after root canal treatment). Genomic DNA was extracted from saliva and used to genotype the SNPs in HTR2A (rs4941573 and rs6313) and MTNR1A (rs6553010, rs6847693 and rs13140012) using real-time polymerase chain reaction. Genotypes were compared using univariate and multivariate Poisson regression with generalized estimating equations (p < .05). RESULTS In total, 108 patients were enrolled in this study. The SNPs rs6553010 (MTNR1A), rs4941573 and rs6313 (HTR2A) were associated with an increased risk of developing pain after root canal treatment (p < .05). CONCLUSIONS This study suggests that SNPs in HTR2A and MTNR1A influence pain response after root canal treatment.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Alice Corrêa Silva-Sousa
- Restorative Dentistry Department, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Manoel Damião de Sousa-Neto
- Restorative Dentistry Department, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Lívia Azeredo Alves Antunes
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Niterói, Brazil
- Clinical Research Unit, Fluminense Federal University, Rio de Janeiro, Brazil
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Nova Friburgo, Brazil
- Specific Formation Department, School of Dentistry of Nova Friburgo, Fluminense Federal University, Rio de Janeiro, Brazil
| | - Leonardo Santos Antunes
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Niterói, Brazil
- Clinical Research Unit, Fluminense Federal University, Rio de Janeiro, Brazil
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Nova Friburgo, Brazil
- Specific Formation Department, School of Dentistry of Nova Friburgo, Fluminense Federal University, Rio de Janeiro, Brazil
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Fujita Y, Matsuoka H, Chiba Y, Tsurutani J, Yoshida T, Sakai K, Nakura M, Sakamoto R, Makimura C, Ohtake Y, Tanaka K, Hayashi H, Takeda M, Okuno T, Takegawa N, Haratani K, Takahama T, Tanizaki J, Koyama A, Nishio K, Nakagawa K. Novel single nucleotide polymorphism biomarkers to predict opioid effects for cancer pain. Oncol Lett 2023; 26:355. [PMID: 37545623 PMCID: PMC10398630 DOI: 10.3892/ol.2023.13941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/05/2023] [Indexed: 08/08/2023] Open
Abstract
There have been few studies on predictive biomarkers that may be useful to select the most suitable opioids to optimize therapeutic efficacy in individual patients with cancer pain. We recently investigated the efficacy of morphine and oxycodone using single nucleotide polymorphisms (SNPs) of the catechol-O-methyltransferase (COMT) rs4680 gene as a biomarker (RELIEF study). To explore additional biomarkers that may enable the selection of an appropriate opioid for individual patients with cancer pain, three SNPs were examined: C-C motif chemokine ligand 11 (CCL11; rs17809012), histamine N-methyltransferase (HNMT; rs1050891) and transient receptor potential V1 (TRPV1; rs222749), which were screened from 74 pain-related SNPs. These SNPs, which were identified as being significantly associated with the analgesic effect of morphine, were then used to genotype the 135 patients in the RELIEF study who had been randomized into a morphine group (n=69) or an oxycodone group (n=66). The present study then assessed whether the SNPs could also be used as selective biomarkers to predict which opioid(s) might be the most suitable to provide pain relief for patients with cancer. Oxycodone tended to provide superior analgesic effects over morphine in patients carrying the genotype AA for the CCL11 rs17809012 SNP (P=0.012 for interaction), suggesting that it could serve as a potential biomarker for personalized analgesic therapy for patients suffering with cancer pain.
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Affiliation(s)
- Yoshihiko Fujita
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Hiromichi Matsuoka
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
- Palliative Care Center, Kindai Hospital, Osaka 589-8511, Japan
- Palliative Care Team, National Cancer Center, Tokyo 104-0045, Japan
| | - Yasutaka Chiba
- Department of Biostatics, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Junji Tsurutani
- Advanced Cancer Translational Research Institute, Showa University, Tokyo 142-8555, Japan
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Takeshi Yoshida
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Kiyohiro Sakai
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
- Palliative Care Center, Kindai Hospital, Osaka 589-8511, Japan
| | - Miki Nakura
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Ryo Sakamoto
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Chihiro Makimura
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Yoichi Ohtake
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Kaoru Tanaka
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Hidetoshi Hayashi
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Masayuki Takeda
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Tatsuya Okuno
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Naoki Takegawa
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Koji Haratani
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Takayuki Takahama
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Junko Tanizaki
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Atsuko Koyama
- Department of Psychosomatic Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
- Palliative Care Center, Kindai Hospital, Osaka 589-8511, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Kazuhiko Nakagawa
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
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Sharma A, Lanktree MB, Liskowich S, Dokouhaki P, Prasad B. Basic Research Protocol: Exome Sequencing in Adults With Loin Pain Hematuria Syndrome: A Pilot Study. Can J Kidney Health Dis 2023; 10:20543581231183856. [PMID: 37426491 PMCID: PMC10328052 DOI: 10.1177/20543581231183856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 05/18/2023] [Indexed: 07/11/2023] Open
Abstract
Background Loin pain hematuria syndrome (LPHS) is a poorly understood clinical syndrome characterized by hematuria and either unilateral or bilateral severe kidney pain in the absence of identifiable urological disease. Loin pain hematuria syndrome imposes a significant health and economic impact with a loss of productivity and quality of life in a young population. Owing to an incomplete understanding of its pathophysiology, treatment has been limited to nonspecific pain management. Nearly 60 years after its initial description, we are no further ahead in understanding the molecular pathways involved in LPHS. Objective To outline the study design for exome sequencing in adults with LPHS and their families. Methods In this single-center case series, 24 patients with LPHS and 2 additional first-degree family members per participant will be recruited. DNA extracted from venous blood samples will undergo exome sequencing on the Illumina NovaSeq 6000 System at 100× depth and will be assessed for pathogenic variants in genes associated with hematuria (number of genes in: glomerular endothelium [n = 10] and basement membrane [n = 8]), and pain pathways (number of genes in: pain transduction [n = 17], conduction [n = 8], synaptic transmission [n = 37], and modulation [n = 27]). We will further examine identified potentially pathogenic variants that co-segregate with LPHS features among affected families. Conclusions This pilot study may identify new directions for an investigation into the molecular mechanisms underlying LPHS.
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Affiliation(s)
- Aditi Sharma
- Dr. T. Bhanu Prasad Med Prof Corp, Regina, SK, Canada
| | - Matthew B. Lanktree
- Departments of Medicine and Health Research Methodology, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- Division of Nephrology, St Joseph’s Healthcare Hamilton, ON, Canada
| | - Sarah Liskowich
- Department of Academic Family Medicine, College of Medicine, University of Saskatchewan, Regina, Canada
| | - Pouneh Dokouhaki
- Department of Pathology and Lab Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Bhanu Prasad
- Section of Nephrology, Department of Medicine, Regina General Hospital, SK, Canada
- College of Medicine, University of Saskatchewan, Regina, Canada
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Prasad B, Sharma A, Lanktree MB, Goyal K, Dokouhaki P. Kidney Biopsy and Type IV Collagen Gene Sequencing Fail to Explain Hematuria in Loin Pain Hematuria Syndrome. Kidney Int Rep 2023; 8:1013-1021. [PMID: 37180518 PMCID: PMC10166728 DOI: 10.1016/j.ekir.2023.02.1075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/06/2023] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
Introduction Loin pain hematuria syndrome (LPHS) is a rare clinical syndrome with a reported prevalence of 1 in 10,000. The syndrome is characterized by severe pain localized to the kidney in the absence of identifiable urinary tract disease. Because of an inadequate understanding of the pathophysiology of the disease, the goal of management has been limited to symptomatic pain management. Through detailed phenotype and genotype assessment we sought to identify possible underlying etiologies. Methods We completed a chart review, ultrasound imaging, kidney biopsy, and type IV collagen (COL4A3, COL4A4, and COL4A5) gene sequencing in 14 patients with loin pain hematuria recruited from a single center. Results Red blood cells and red cell casts were observed within the tubules in 10 of 14 patients. The glomerular basement membrane (GBM) was normal in 11 patients and thickened in 1 patient. Staining for IgA kappa was present in 1 patient. C3 deposition without any inflammation was present in 7 patients. Arteriolar hyalinosis was present in 4 patients and endothelial cell injury was present in 6 patients. No pathogenic COL4A3, COL4A4, or COL4A5 variants were identified. Conclusion Conventional histopathology and genetic testing for type IV collagen variants failed to identify the cause of hematuria in 14 patients with LPHS.
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Affiliation(s)
- Bhanu Prasad
- Section of Nephrology, Department of Medicine, Regina General Hospital, Regina, Saskatchewan, Canada
- College of Medicine, University of Saskatchewan, Regina, Saskatchewan, Canada
| | - Aditi Sharma
- Institute for Microbial Systems and Society, University of Regina, Regina, Saskatchewan, Canada
| | - Mathew B Lanktree
- Division of Nephrology, St. Joseph’s Healthcare Hamilton, McMaster University, Hamilton, Ontario, Canada
| | - Kunal Goyal
- Department of Radiology, Regina General Hospital, Regina, Saskatchewan, Canada
| | - Pouneh Dokouhaki
- Department of Pathology and Laboratory Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Wang F, Cheung CW, Wong SSC. Use of pain-related gene features to predict depression by support vector machine model in patients with fibromyalgia. Front Genet 2023; 14:1026672. [PMID: 37065490 PMCID: PMC10090498 DOI: 10.3389/fgene.2023.1026672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 03/20/2023] [Indexed: 03/31/2023] Open
Abstract
The prevalence rate of depression is higher in patients with fibromyalgia syndrome, but this is often unrecognized in patients with chronic pain. Given that depression is a common major barrier in the management of patients with fibromyalgia syndrome, an objective tool that reliably predicts depression in patients with fibromyalgia syndrome could significantly enhance the diagnostic accuracy. Since pain and depression can cause each other and worsen each other, we wonder if pain-related genes can be used to differentiate between those with major depression from those without. This study developed a support vector machine model combined with principal component analysis to differentiate major depression in fibromyalgia syndrome patients using a microarray dataset, including 25 fibromyalgia syndrome patients with major depression, and 36 patients without major depression. Gene co-expression analysis was used to select gene features to construct support vector machine model. The principal component analysis can help reduce the number of data dimensions without much loss of information, and identify patterns in data easily. The 61 samples available in the database were not enough for learning based methods and cannot represent every possible variation of each patient. To address this issue, we adopted Gaussian noise to generate a large amount of simulated data for training and testing of the model. The ability of support vector machine model to differentiate major depression using microarray data was measured as accuracy. Different structural co-expression patterns were identified for 114 genes involved in pain signaling pathway by two-sample KS test (p < 0.001 for the maximum deviation D = 0.11 > Dcritical = 0.05), indicating the aberrant co-expression patterns in fibromyalgia syndrome patients. Twenty hub gene features were further selected based on co-expression analysis to construct the model. The principal component analysis reduced the dimension of the training samples from 20 to 16, since 16 components were needed to retain more than 90% of the original variance. The support vector machine model was able to differentiate between those with major depression from those without in fibromyalgia syndrome patients with an average accuracy of 93.22% based on the expression levels of the selected hub gene features. These findings would contribute key information that can be used to develop a clinical decision-making tool for the data-driven, personalized optimization of diagnosing depression in patients with fibromyalgia syndrome.
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SCN9A rs6746030 Polymorphism and Pain Perception in Combat Athletes and Non-Athletes. Genes (Basel) 2023; 14:genes14030733. [PMID: 36981004 PMCID: PMC10048703 DOI: 10.3390/genes14030733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/09/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
One of the genes associated with pain perception is SCN9A, which encodes an α-subunit of the voltage gated sodium channel, NaV1.7, a crucial player in peripheral pain sensation. It has been suggested that a common missense polymorphism within SCN9A (rs6746030; G>A; R1150W) may affect nociception in the general population, but its effects of pain perception in athletes remain unknown. Therefore, the aim of the study was to investigate the association between a polymorphism within SCN9A (rs6746030) and pain perception (pain threshold and pain tolerance) in the group of combat athletes (n = 214) and students (n = 92) who did not participate in sports at a professional level. Genotyping was carried out using TaqMan Real-Time PCR method. No significant differences were found between the SCN9A genotype distributions with respect to the pain threshold. However, the probability of having a high pain threshold was higher in the combat sports group than in the control group. The probability of having a decreased pain tolerance was higher in the carriers of the GA and AA genotype than in the homozygotes of the GG genotype. Moreover, the possibility of having a high pain threshold was higher in the combat athlete group than in the control group. The results of our study suggest that the SCN9A rs6746030 polymorphism may affect pain perception. However, the additional effect of the experimental group may suggest that pain tolerance is significantly modulated by other factors, such as the systematic exposure of the athletes’ bodies to short-term high-intensity stimuli during training sessions.
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Gonçalves FDT, Pacheco-Barrios K, Rebello-Sanchez I, Castelo-Branco L, de Melo PS, Parente J, Cardenas-Rojas A, Firigato I, Pessotto AV, Imamura M, Simis M, Battistella L, Fregni F. Association of Mu opioid receptor (A118G) and BDNF (G196A) polymorphisms with rehabilitation-induced cortical inhibition and analgesic response in chronic osteoarthritis pain. Int J Clin Health Psychol 2023; 23:100330. [PMID: 36199368 PMCID: PMC9508345 DOI: 10.1016/j.ijchp.2022.100330] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/23/2022] [Accepted: 07/23/2022] [Indexed: 01/02/2023] Open
Abstract
Background/objective Chronic pain due to osteoarthritis (OA) is a prevalent cause of global disability. New biomarkers are needed to improve treatment allocation, and genetic polymorphisms are promising candidates. Method We aimed to assess the association of OPRM1 (A118G and C17T) and brain-derived neurotrophic factor (BDNF [G196A]) polymorphisms with pain-related outcomes and motor cortex excitability metrics (measured by transcranial magnetic stimulation) in 113 knee OA patients with chronic pain. We performed adjusted multivariate regression analyses to compare carriers versus non-carriers in terms of clinical and neurophysiological characteristics at baseline, and treatment response (pain reduction and increased cortical inhibitory tonus) after rehabilitation. Results Compared to non-carriers, participants with polymorphisms on both OPRM1 (A118G) and BDNF (G196A) genes were less likely to improve pain after rehabilitation (85 and 72% fewer odds of improvement, respectively). Likewise, both carriers of OPRM1 polymorphisms (A118G and C17T) were also less likely to improve cortical inhibition (short intracortical inhibition [SICI], and intracortical facilitation [ICF], respectively). While pain and cortical inhibition improvement did not correlate in the total sample, the presence of OPRM1 (A118G) and BDNF (G196A) polymorphisms moderated this relationship. Conclusions These results underscore the promising role of combining genetic and neurophysiological markers to endotype the treatment response in this population.
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Tang HD, Dong WY, Hu R, Huang JY, Huang ZH, Xiong W, Xue T, Liu J, Yu JM, Zhu X, Zhang Z. A neural circuit for the suppression of feeding under persistent pain. Nat Metab 2022; 4:1746-1755. [PMID: 36443522 DOI: 10.1038/s42255-022-00688-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 10/14/2022] [Indexed: 11/30/2022]
Abstract
In humans, persistent pain often leads to decreased appetite. However, the neural circuits underlying this behaviour remain unclear. Here, we show that a circuit arising from glutamatergic neurons in the anterior cingulate cortex (GluACC) projects to glutamatergic neurons in the lateral hypothalamic area (GluLHA) to blunt food intake in a mouse model of persistent pain. In turn, these GluLHA neurons project to pro-opiomelanocortin neurons in the hypothalamic arcuate nucleus (POMCArc), a well-known neuronal population involved in decreasing food intake. In vivo calcium imaging and multi-tetrode electrophysiological recordings reveal that the GluACC → GluLHA → Arc circuit is activated in mouse models of persistent pain and is accompanied by decreased feeding behaviour in both males and females. Inhibition of this circuit using chemogenetics can alleviate the feeding suppression symptoms. Our study indicates that the GluACC → GluLHA → Arc circuit is involved in driving the suppression of feeding under persistent pain through POMC neuronal activity. This previously unrecognized pathway could be explored as a potential target for pain-associated diseases.
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Affiliation(s)
- Hao-Di Tang
- Department of Anesthesiology and Pain Medicine, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wan-Ying Dong
- Department of Anesthesiology and Pain Medicine, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Rui Hu
- Department of Anesthesiology, The Third Affiliated Hospital of Anhui Medical University (The First People's Hospital of Hefei), Hefei, China
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ji-Ye Huang
- Department of Anesthesiology and Pain Medicine, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zhao-Huan Huang
- National Engineering Laboratory for Brain-inspired Intelligence Technology and Application, School of Information Science and Technology, CAS Key Laboratory of Brain Function and Diseases, University of Science and Technology of China, Hefei, China
| | - Wei Xiong
- Department of Anesthesiology and Pain Medicine, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Tian Xue
- Department of Anesthesiology and Pain Medicine, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ji Liu
- National Engineering Laboratory for Brain-inspired Intelligence Technology and Application, School of Information Science and Technology, CAS Key Laboratory of Brain Function and Diseases, University of Science and Technology of China, Hefei, China.
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, China.
| | - Jun-Ma Yu
- Department of Anesthesiology, The Third Affiliated Hospital of Anhui Medical University (The First People's Hospital of Hefei), Hefei, China.
| | - Xia Zhu
- Department of Anesthesiology and Pain Medicine, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Zhi Zhang
- Department of Anesthesiology and Pain Medicine, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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Karataş E, Sümbüllü M, Kahraman Ç, Çakmak F. Association between single nucleotide polymorphisms in candidate genes and success of pulpal anesthesia following inferior alveolar nerve block. J Endod 2022; 49:18-25. [PMID: 37185254 DOI: 10.1016/j.joen.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION The present study aimed to investigate the possible association between the single-nucleotide polymorphisms (SNPs) in the SCN9A, SCN10A, SCN11A, OPRM1, and COMT genes and the success rate of pulpal anesthesia after inferior alveolar nerve block (IANB). METHODS A total of 70 patients (45 females and 25 males) presenting mandibular molar teeth with symptomatic irreversible pulpitis were included. Saliva samples were collected from the participants before the application of IANB. A standard IANB was performed with 1.8 mL 4% articaine with 1:100,000 epinephrine. Endodontic treatment was initiated 15 minutes after injection, and the patients were asked to report their pain level during the procedure on a 170-mm Heft-Parker visual analog scale. If the patient recorded a pain level of lower than 54 on the visual analog scale (no pain or mild pain), the anesthesia was considered successful. The DNA isolation and genotyping were performed, and the association between rs4286289, rs6746030, rs6795970, rs6801957, rs11709492, rs1799971, rs1799973, rs4680, rs6269, rs4633, and rs740603 SNPs and the success rate of anesthesia was investigated. RESULTS The anesthesia success rate was significantly lower for the GG genotypes (45%) than the GA and AA genotypes (90%) for rs6795970 in the SCN10A gene. Additionally, the A allele for rs6795970 and the T allele for rs6801957 in the SCN10A gene were significantly associated with higher anesthesia success rates. CONCLUSIONS SNPs in the SCN10A gene affect the success rate of pulpal anesthesia after IANB.
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Fernández-de-las-Peñas C, Giordano R, Díaz-Gil G, Gil-Crujera A, Gómez-Sánchez SM, Ambite-Quesada S, Arendt-Nielsen L. Are Pain Polymorphisms Associated with the Risk and Phenotype of Post-COVID Pain in Previously Hospitalized COVID-19 Survivors? Genes (Basel) 2022; 13:genes13081336. [PMID: 35893072 PMCID: PMC9394327 DOI: 10.3390/genes13081336] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
Objective: To investigate the association of different, selected pain polymorphisms with the presence of de novo long-COVID pain symptoms and to analyze the association between these polymorphisms with clinical, sensory-related, cognitive and psychological variables in COVID-19 survivors. Methods: Two hundred and ninety-three (n = 293, 49.5% female, mean age: 55.6 ± 12.9 years) previously hospitalized COVID-19 survivors participated. Three genotypes of the following single nucleotide polymorphisms (SNPs) were obtained from non-stimulated saliva: OPRM1 (rs1799971), COMT (rs4680), BDNF (rs6265), and HTR1B (rs6296) by polymerase chain reactions in all participants. Further, clinical (intensity/duration of pain), sensory-related (sensitization-associated symptoms, neuropathic pain features), psychological (anxiety or depressive levels, sleep quality), and cognitive (catastrophizing, kinesiophobia) variables were collected in those COVID-19 survivors suffering from post-COVID pain. Analyses were carried out to associate clinical features with genotype. Results: Participants were assessed 17.8 ± 5.2 months after hospitalization. One hundred and seventeen (39.9%) experienced post-COVID pain (particularly of musculoskeletal origin). The distributions of the genotype variants of any SNP were not significantly different between COVID-19 survivors with and without long-term post-COVID pain (all, p > 0.178). No differences in sensitization-associated symptoms, neuropathic pain features, catastrophizing, kinesiophobia levels, anxiety and depressive levels or sleep quality according to the genotype variant in any SNPs were found. No effect of gender was identified. Conclusion: The four SNPs generally associated with pain did not appear to predispose to the development of de novo long-COVID pain symptoms in previously hospitalized COVID-19 survivors. The SNPs were not involved in the phenotypic features of post-COVID pain either.
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Affiliation(s)
- César Fernández-de-las-Peñas
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain;
- Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, DK-9220 Aalborg, Denmark; (R.G.); (L.A.-N.)
- Correspondence:
| | - Rocco Giordano
- Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, DK-9220 Aalborg, Denmark; (R.G.); (L.A.-N.)
| | - Gema Díaz-Gil
- Research Group GAMDES, Department of Basic Health Sciences, Universidad Rey Juan Carlos (URJC), 28922 Madrid, Spain; (G.D.-G.); (A.G.-C.); (S.M.G.-S.)
| | - Antonio Gil-Crujera
- Research Group GAMDES, Department of Basic Health Sciences, Universidad Rey Juan Carlos (URJC), 28922 Madrid, Spain; (G.D.-G.); (A.G.-C.); (S.M.G.-S.)
| | - Stella M. Gómez-Sánchez
- Research Group GAMDES, Department of Basic Health Sciences, Universidad Rey Juan Carlos (URJC), 28922 Madrid, Spain; (G.D.-G.); (A.G.-C.); (S.M.G.-S.)
| | - Silvia Ambite-Quesada
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain;
| | - Lars Arendt-Nielsen
- Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, DK-9220 Aalborg, Denmark; (R.G.); (L.A.-N.)
- Department of Medical Gastroenterology, Mech-Sense, Aalborg University Hospital, DK-9000 Aalborg, Denmark
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13
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Zeidler M, Kummer KK, Kress M. Towards bridging the translational gap by improved modeling of human nociception in health and disease. Pflugers Arch 2022; 474:965-978. [PMID: 35655042 PMCID: PMC9393146 DOI: 10.1007/s00424-022-02707-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/18/2022] [Indexed: 11/09/2022]
Abstract
Despite numerous studies which have explored the pathogenesis of pain disorders in preclinical models, there is a pronounced translational gap, which is at least partially caused by differences between the human and rodent nociceptive system. An elegant way to bridge this divide is the exploitation of human-induced pluripotent stem cell (iPSC) reprogramming into human iPSC-derived nociceptors (iDNs). Several protocols were developed and optimized to model nociceptive processes in health and disease. Here we provide an overview of the different approaches and summarize the knowledge obtained from such models on pain pathologies associated with monogenetic sensory disorders so far. In addition, novel perspectives offered by increasing the complexity of the model systems further to better reflect the natural environment of nociceptive neurons by involving other cell types in 3D model systems are described.
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Affiliation(s)
- Maximilian Zeidler
- Institute of Physiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Kai K Kummer
- Institute of Physiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Michaela Kress
- Institute of Physiology, Medical University of Innsbruck, Innsbruck, Austria.
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14
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Schone HR, Baker CI, Katz J, Nikolajsen L, Limakatso K, Flor H, Makin TR. Making sense of phantom limb pain. J Neurol Neurosurg Psychiatry 2022; 93:jnnp-2021-328428. [PMID: 35609964 PMCID: PMC9304093 DOI: 10.1136/jnnp-2021-328428] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/04/2022] [Indexed: 01/01/2023]
Abstract
Phantom limb pain (PLP) impacts the majority of individuals who undergo limb amputation. The PLP experience is highly heterogenous in its quality, intensity, frequency and severity. This heterogeneity, combined with the low prevalence of amputation in the general population, has made it difficult to accumulate reliable data on PLP. Consequently, we lack consensus on PLP mechanisms, as well as effective treatment options. However, the wealth of new PLP research, over the past decade, provides a unique opportunity to re-evaluate some of the core assumptions underlying what we know about PLP and the rationale behind PLP treatments. The goal of this review is to help generate consensus in the field on how best to research PLP, from phenomenology to treatment. We highlight conceptual and methodological challenges in studying PLP, which have hindered progress on the topic and spawned disagreement in the field, and offer potential solutions to overcome these challenges. Our hope is that a constructive evaluation of the foundational knowledge underlying PLP research practices will enable more informed decisions when testing the efficacy of existing interventions and will guide the development of the next generation of PLP treatments.
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Affiliation(s)
- Hunter R Schone
- NIMH, National Institutes of Health, Bethesda, Maryland, USA
- Institute of Cognitive Neuroscience, University College London, London, UK
| | - Chris I Baker
- NIMH, National Institutes of Health, Bethesda, Maryland, USA
| | - Joel Katz
- Department of Psychology, York University, Toronto, Ontario, Canada
- Transitional Pain Service, Department of Anesthesia and Pain Management, Toronto General Hospital, Toronto, Ontario, Canada
| | - Lone Nikolajsen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Katleho Limakatso
- Department of Anaesthesia and Perioperative Medicine, Pain Management Unit, Neuroscience Institute, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Herta Flor
- Institute of Cognitive and Clinical Neuroscience, Central Institute of Mental Health/Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Center for Neuroplasticity and Pain, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark
| | - Tamar R Makin
- Institute of Cognitive Neuroscience, University College London, London, UK
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15
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Janssen LP, Medeiros LF, Souza ADE, Silva JDA. Fibromyalgia: A Review of Related Polymorphisms and Clinical Relevance. AN ACAD BRAS CIENC 2021; 93:e20210618. [PMID: 34730627 DOI: 10.1590/0001-3765202120210618] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/15/2021] [Indexed: 11/21/2022] Open
Abstract
Fibromyalgia (FM) is a chronic pain syndrome that affects the central nervous system and generates disability, which is characterized by generalized pain, fatigue, and functional decline. In this review, we aimed to identify the polymorphisms related to the pathophysiology of FM and the clinical characteristics generated by genetic influence. Only original studies with genes related to FM were considered, totaling 27 articles. The genes found were: MTHFR, RGS4, MYT1L, TACR1, SCN9A, DRD3, ADRB2, IL-4, HLA-DRB1, EDN1, CNR1, TAAR1, OPRM1, ADRA1A, ADRB3, BDNF, GRIA4, HTR3A, HTR3B, HTR2A, SERPINA 1 or A1AT, NRXN3, GCH1, MEFV, TRPV3, SLC6A4, ACE I/D, TSPO, COMT, and MAOA. Several genes related to different pain syndromes and altered pain thresholds have been identified and some polymorphisms were related to susceptibility to FM. It was observed that 73.33% of the genes related to FM were also associated with some psychological disorders, such as anxiety, depression, schizophrenia, and obsessive and compulsive disorder, and 40.00% with pain sensitivity and/or migraine, besides other disorders associated (drug addiction, autoimmune disorders, circulatory problems, and metabolic alterations). This review demonstrated an association of FM and genetic polymorphisms that can expand our knowledge about the pathophysiology of this disease.
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Affiliation(s)
- Luísa P Janssen
- Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, São José, 92425-900 Canoas, RS, Brazil.,Universidade do Vale do Rio dos Sinos (UNISINOS), Av. Unisinos 950, Cristo Rei, 93022-750 São Leopoldo, RS, Brazil
| | - Liciane F Medeiros
- La Salle University (UniLaSalle), Av. Victor Barreto 2288, Centro, 92010-000 Canoas, RS, Brazil
| | - Andressa DE Souza
- La Salle University (UniLaSalle), Av. Victor Barreto 2288, Centro, 92010-000 Canoas, RS, Brazil
| | - Juliana DA Silva
- Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, São José, 92425-900 Canoas, RS, Brazil.,La Salle University (UniLaSalle), Av. Victor Barreto 2288, Centro, 92010-000 Canoas, RS, Brazil
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16
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Seyed MA, Mohamed SHP. Low Back Pain: A Comprehensive Review on the Diagnosis, Treatment Options, and the Role of Other Contributing Factors. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: In recent years, low back pain (LBP) is a growing major health issue around the world and mostly addressed in primary healthcare settings. This may be due to changing work environment including the nature of long sitting work hours, especially in the booming information and technology (IT) and Business Process Outsourcing (BPO) industry. LBP is normally considered as a combination of various types of pain and its related conditions, which eventually lead to disabilities.
AIM: In this article, the aim is to discuss the current and future perspectives of LBP mainly on diagnosis and therapeutic front of LBP.
METHODS: A search was performed using electronic databases, which include PubMed Central and Google Scholar, using the related key words “back pain and low back pain.” All related peer reviewed published articles were included regardless of the language, region, or the publication date.
RESULTS: Although the management of LBP both in terms of diagnosis as well as in the therapeutic options has witnessed considerable progress but challenges are still exist not only within countries but also in the regions and continents among various medical professionals. However, in the past few years, a huge array of coordinated but randomized multi-center clinical studies were performed and various detailed insight investigations have been done, and substantial clinical guidelines have become available. Hence, a new view on evidence-based management approach for LBP has significantly improved recently and discussed here.
CONCLUSION: Based on the available evidence and literature, this comprehensive review discusses the present and future perspectives of LBP mainly on diagnosis and therapeutic front for LBP. In addition, current intervention and prevention plans have failed to lessen the considerable burden of LBP and hence several areas which require more details, which deserves additional discussion to augment us through an understanding of this very important topic on improvements of multi tasked outcomes to benefit the affected patients.
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17
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Abstract
Pain is an immense clinical and societal challenge, and the key to understanding and treating it is variability. Robust interindividual differences are consistently observed in pain sensitivity, susceptibility to developing painful disorders, and response to analgesic manipulations. This review examines the causes of this variability, including both organismic and environmental sources. Chronic pain development is a textbook example of a gene-environment interaction, requiring both chance initiating events (e.g., trauma, infection) and more immutable risk factors. The focus is on genetic factors, since twin studies have determined that a plurality of the variance likely derives from inherited genetic variants, but sex, age, ethnicity, personality variables, and environmental factors are also considered.
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Affiliation(s)
- Jeffrey S Mogil
- Departments of Psychology and Anesthesia, Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec H3A 1B1, Canada;
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18
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Central amygdala circuitry modulates nociceptive processing through differential hierarchical interaction with affective network dynamics. Commun Biol 2021; 4:732. [PMID: 34127787 PMCID: PMC8203648 DOI: 10.1038/s42003-021-02262-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 05/25/2021] [Indexed: 11/08/2022] Open
Abstract
The central amygdala (CE) emerges as a critical node for affective processing. However, how CE local circuitry interacts with brain wide affective states is yet uncharted. Using basic nociception as proxy, we find that gene expression suggests diverging roles of the two major CE neuronal populations, protein kinase C δ-expressing (PKCδ+) and somatostatin-expressing (SST+) cells. Optogenetic (o)fMRI demonstrates that PKCδ+/SST+ circuits engage specific separable functional subnetworks to modulate global brain dynamics by a differential bottom-up vs. top-down hierarchical mesoscale mechanism. This diverging modulation impacts on nocifensive behavior and may underly CE control of affective processing. In order to examine how central amygdala (CE) local circuitry interacts with brain-wide affective states, Wank et al performed gene expression analysis and optogenetic fMRI in mice, using basic nociception as a proxy. They found evidence for diverging roles of two major CE neuronal populations in modulating global brain states, which impacts on aversive processing and nocifensive behaviour.
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19
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Santos Passos FR, Pereira EWM, Heimfarth L, Monteiro BS, Barbosa Gomes de Carvalho YM, Siqueira-Lima PS, Melo Coutinho HD, Antunes de Souza Araújo A, Guedes da Silva Almeida JR, Barreto RSS, Picot L, Quintans-Júnior LJ, Quintans JSS. Role of peripheral and central sensitization in the anti-hyperalgesic effect of hecogenin acetate, an acetylated sapogenin, complexed with β-cyclodextrin: Involvement of NFκB and p38 MAPK pathways. Neuropharmacology 2021; 186:108395. [PMID: 33516738 DOI: 10.1016/j.neuropharm.2020.108395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/29/2020] [Accepted: 11/05/2020] [Indexed: 12/30/2022]
Abstract
Neuropathic pain develops due to injury to the somatosensory system, affecting the patient's quality of life. In view of the ineffectiveness of the current pharmacotherapy, substances obtained from natural products (NPs) are a promising alternative. One NP that has been discussed in the literature is hecogenin acetate (HA), a steroidal sapogenin with anti-inflammatory and antinociceptive activity. However, HA has low water solubility, which affects its bioavailability. Thus, the objective of this study was to evaluate the anti-hyperalgesic activity of pure and complexed hecogenin acetate (HA/βCD) in an animal model of chronic neuropathic and inflammatory pain. The inclusion complex was prepared at a molar ratio of 1:2 (HA:βCD) by the lyophilization method. For the induction of chronic inflammatory pain, the mice received an intraplantar injection of CFA (complete Freund's adjuvant), and were evaluated for mechanical hyperalgesia and for the levels of myeloperoxidase (MPO) in the skin of the paw after eight days of treatment. HA and HA/βCD reduced mechanical hyperalgesia in relation to the vehicle group until the fourth and fifth hours, respectively, in the acute evaluation, with a superior effect of the complexed form over the pure form in the second and third hour after treatment (p < 0.001). In the chronic evaluation, HA and HA/βCD reduced hyperalgesia in relation to the vehicle in the eight days of treatment (p < 0.001). Both pure (p < 0.01) and complexed (p < 0.001) forms reduced myeloperoxidase activity in the skin of the animals' paw. Groups of animals subjected to the same pharmacological protocol were submitted to the partial sciatic nerve ligation (PSNL) model and evaluated for mechanical and thermal hyperalgesia, and cold allodynia. HA and HA/βCD reduced mechanical hyperalgesia until the fourth and sixth hours, respectively, and both reduced hyperalgesia in relation to the vehicle in the chronic evaluation (p < 0.001). HA and HA/βCD also reduced thermal hyperalgesia and cold allodynia (p < 0.05 and p < 0.001, respectively). The analysis of the spinal cord of these animals showed a decrease in the levels of the pro-inflammatory cytokines TNF-α, IL-1β and IL-6 and a reduction in the phosphorylation of NFκB and p38MAPK, as well as a decrease in microglioses compared to the vehicle group. In addition, HA/βCD reduced the nociception induced by intraplantar injection of agonist TRPA1 (p < 0.01) and TRPM8 (p < 0.05). Treatment for eight days with HA and HA/βCD showed no signs of gastric or liver damage. HA and HA/βCD were, therefore, shown to have antinociceptive effects in chronic pain models. Based on our exploration of the mechanisms of the action of HA, these effects are likely to be related to inhibited leukocyte migration, interaction with the TRPA1 and TRPM8 receptors, reduced pro-inflammatory cytokines levels, microglial expression and suppression of NF-κB p65 and p38 MAPK pathway signaling. Therefore, HA/βCD has great potential for use in the treatment of chronic pain.
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Affiliation(s)
- Fabiolla Rocha Santos Passos
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil; Health Sciences Graduate Program, Brazil
| | - Erik W M Pereira
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil; Health Sciences Graduate Program, Brazil
| | - Luana Heimfarth
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil
| | - Brenda S Monteiro
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil
| | - Yasmim Maria Barbosa Gomes de Carvalho
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil
| | | | | | | | | | - Rosana S S Barreto
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil
| | - Laurent Picot
- La Rochelle Université, UMRi CNRS 7266 LIENSs, 17042, La Rochelle, France
| | - Lucindo J Quintans-Júnior
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil; Health Sciences Graduate Program, Brazil
| | - Jullyana S S Quintans
- Laboratory of Neurosciences and Pharmacological Assays (LANEF- Laboratório de Neurociências e Ensaios Farmacológicos), Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil; Health Sciences Graduate Program, Brazil.
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Genetic Variation as a Possible Explanation for the Heterogeneity of Pain in Tendinopathy: What can we learn from other pain syndromes? CENTRAL EUROPEAN JOURNAL OF SPORT SCIENCES AND MEDICINE 2021. [DOI: 10.18276/cej.2021.4-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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21
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Eryilmaz IE, Erer S, Zarifoglu M, Egeli U, Karakus E, Yurdacan B, Cecener G, Tunca B, Colakoglu B, Bora Tokcaer A, Saka E, Demirkiran M, Akbostanci C, Dogu O, Kaleagasi H, Kenangil G, Cakmur R, Elibol B. Contribution of functional dopamine D2 and D3 receptor variants to motor and non-motor symptoms of early onset Parkinson's disease. Clin Neurol Neurosurg 2020; 199:106257. [PMID: 33039854 DOI: 10.1016/j.clineuro.2020.106257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/12/2020] [Accepted: 09/28/2020] [Indexed: 01/29/2023]
Abstract
In the present study, we focused on investigating the contribution of functional dopamine D2 and D3 receptor variants to motor and/or non-motor symptoms of early onset Parkinson's disease (EOPD). Three functional single nucleotide polymorphisms (SNPs), DRD3 rs6280, DRD2 rs2283265 and DRD2 rs1076560, were genotyped in 128 Turkish EOPD patients and then, statistical analysis was conducted for the potential impacts of SNPs on clinical parameters. All three SNPs were found to be statistically significant in terms of PD-related pain: DRD3 [rs6280; risk allele "T" for pain; p = 0.031; odds ratio (OR)=4.25], DRD2 [rs2283265; risk allele "A" for pain; p = 0.001; OR=8.47] and, DRD2 [rs1076560; risk allele "A" for pain; p = 0.022; OR=4.58]. Additionally, bilateral disease [p = 0.011; OR=5.10] and gender [risk group "female"; p = 0.003; OR=8.53] were also identified as significant univariate risk factors for PD-related pain. Based on logistic regression analysis conducted with the significant univariate risk factors, this the first report to clarify that a female patient with bilateral PD and DRD2 rs2283265 polymorphism has a significant risk for PD-related pain. Our findings might contribute to improve life quality by offering treatment options for pain in PD patients with these clinical and genetic features.
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Affiliation(s)
- Isil Ezgi Eryilmaz
- Bursa Uludag University, Faculty of Medicine, Medical Biology Department, Bursa, Turkey
| | - Sevda Erer
- Bursa Uludag University, Faculty of Medicine, Neurology Department, Bursa, Turkey.
| | - Mehmet Zarifoglu
- Bursa Uludag University, Faculty of Medicine, Neurology Department, Bursa, Turkey
| | - Unal Egeli
- Bursa Uludag University, Faculty of Medicine, Medical Biology Department, Bursa, Turkey
| | - Ece Karakus
- Bursa Uludag University, Faculty of Medicine, Bursa, Turkey
| | - Beste Yurdacan
- Bursa Uludag University, Faculty of Medicine, Medical Biology Department, Bursa, Turkey
| | - Gulsah Cecener
- Bursa Uludag University, Faculty of Medicine, Medical Biology Department, Bursa, Turkey
| | - Berrin Tunca
- Bursa Uludag University, Faculty of Medicine, Medical Biology Department, Bursa, Turkey
| | - Beril Colakoglu
- Dokuz Eylul University, Faculty of Medicine, Neurology Department, Izmir, Turkey
| | - Ayse Bora Tokcaer
- Gazi University, Faculty of Medicine, Neurology Department, Ankara, Turkey
| | - Esen Saka
- Hacettepe University, Faculty of Medicine, Neurology Department, Ankara, Turkey
| | - Meltem Demirkiran
- Cukurova University, Faculty of Medicine, Neurology Department, Adana, Turkey
| | - Cenk Akbostanci
- Ankara University, Faculty of Medicine, Neurology Department, Ankara, Turkey
| | - Okan Dogu
- Mersin University, Faculty of Medicine, Neurology Department, Mersin, Turkey
| | - Hakan Kaleagasi
- Mersin University, Faculty of Medicine, Neurology Department, Mersin, Turkey
| | - Gulay Kenangil
- BAU Medical Park Goztepe, Neurology Department, İstanbul, Turkey
| | - Raif Cakmur
- Dokuz Eylul University, Faculty of Medicine, Neurology Department, Izmir, Turkey
| | - Bulent Elibol
- Hacettepe University, Faculty of Medicine, Neurology Department, Ankara, Turkey
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López-Cortés A, Zambrano AK, Guevara-Ramírez P, Echeverría BA, Guerrero S, Cabascango E, Pérez-Villa A, Armendáriz-Castillo I, García-Cárdenas JM, Yumiceba V, Pérez-M G, Leone PE, Paz-y-Miño C. Clinical, genomics and networking analyses of a high-altitude native American Ecuadorian patient with congenital insensitivity to pain with anhidrosis: a case report. BMC Med Genomics 2020; 13:113. [PMID: 32807182 PMCID: PMC7437939 DOI: 10.1186/s12920-020-00764-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 08/10/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Congenital insensitivity to pain with anhidrosis (CIPA) is an extremely rare autosomal recessive disorder characterized by insensitivity to pain, inability to sweat and intellectual disability. CIPA is caused by mutations in the neurotrophic tyrosine kinase receptor type 1 gene (NTRK1) that encodes the high-affinity receptor of nerve growth factor (NGF). CASE PRESENTATION Here, we present clinical and molecular findings in a 9-year-old girl with CIPA. The high-altitude indigenous Ecuadorian patient presented several health problems such as anhidrosis, bone fractures, self-mutilation, osteochondroma, intellectual disability and Riga-Fede disease. After the mutational analysis of NTRK1, the patient showed a clearly autosomal recessive inheritance pattern with the pathogenic mutation rs763758904 (Arg602*) and the second missense mutation rs80356677 (Asp674Tyr). Additionally, the genomic analysis showed 69 pathogenic and/or likely pathogenic variants in 46 genes possibly related to phenotypic heterogeneity, including the rs324420 variant in the FAAH gene. The gene ontology enrichment analysis showed 28 mutated genes involved in several biological processes. As a novel contribution, the protein-protein interaction network analysis showed that NTRK1, SPTBN2 and GRM6 interact with several proteins of the pain matrix involved in the response to stimulus and nervous system development. CONCLUSIONS This is the first study that associates clinical, genomics and networking analyses in a Native American patient with consanguinity background in order to better understand CIPA pathogenesis.
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Affiliation(s)
- Andrés López-Cortés
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
- Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF-CYTED), Madrid, Spain
| | - Ana Karina Zambrano
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | - Patricia Guevara-Ramírez
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | - Byron Albuja Echeverría
- Hospital San Luis de Otavalo, Ministerio de Salud Pública, Antonio José de Sucre Avenue, 100201 Otavalo, Ecuador
| | - Santiago Guerrero
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | - Eliana Cabascango
- Sistemas Médicos (SIME), Universidad San Francisco de Quito, Interoceánica Avenue and Chimborazo, 170902 Cumbayá, Ecuador
| | - Andy Pérez-Villa
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | - Isaac Armendáriz-Castillo
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | - Jennyfer M. García-Cárdenas
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | - Verónica Yumiceba
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | | | - Paola E. Leone
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
| | - César Paz-y-Miño
- Centro de Investigación Genética y Genómica. Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, 170129 Quito, Ecuador
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Kim HK, Lee SY, Koike N, Kim E, Wirianto M, Burish MJ, Yagita K, Lee HK, Chen Z, Chung JM, Abdi S, Yoo SH. Circadian regulation of chemotherapy-induced peripheral neuropathic pain and the underlying transcriptomic landscape. Sci Rep 2020; 10:13844. [PMID: 32796949 PMCID: PMC7427990 DOI: 10.1038/s41598-020-70757-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 07/27/2020] [Indexed: 12/19/2022] Open
Abstract
Growing evidence demonstrates circadian rhythms of pain hypersensitivity in various chronic disorders. In chemotherapy-induced peripheral neuropathy (CIPN), agents such as paclitaxel are known to elicit chronic neuropathic pain in cancer patients and seriously compromise their quality of life. Here, we report that the mechanical threshold for allodynia in paclitaxel-treated rats exhibited a robust circadian oscillation, reaching the nadir during the daytime (inactive phase). Using Per2::LucSV circadian reporter mice expressing a PER2::LUC fusion protein, we isolated dorsal root ganglia (DRG), the primary sensory cell body for peripheral nerve injury generated hypersensitivity, and monitored ex vivo reporter bioluminescence. We observed strong circadian reporter rhythms in DRG neurons which are highly entrainable by external cues. Paclitaxel treatment significantly lengthened DRG circadian periods, with little effects on the amplitude of oscillation. We further observed the core protein BMAL1 and PER2 in DRG neurons and satellite cells. Using DRG and dorsal horn (DH; another key structure for CIPN pain response) tissues from vehicle and paclitaxel treated rats, we performed RNA-sequencing and identified diurnal expression of core clock genes as well as clock-controlled genes in both sites. Interestingly, 20.1% and 30.4% of diurnal differentially expressed genes (DEGs) overlapped with paclitaxel-induced DEGs in the DRG and the DH respectively. In contrast, paclitaxel-induced DEGs displayed only a modest overlap between daytime and nighttime (Zeitgeber Time 8 and 20). Furthermore, paclitaxel treatment induced de novo diurnal DEGs, suggesting reciprocal interaction of circadian rhythms and chemotherapy. Our study therefore demonstrates a circadian oscillation of CIPN and its underlying transcriptomic landscape.
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Affiliation(s)
- Hee Kee Kim
- Division of Anesthesiology, Critical Care and Pain Medicine, Department of Pain Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Sun-Yeul Lee
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center At Houston, 6431 Fannin St., Houston, TX, 77030, USA
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, South Korea
| | - Nobuya Koike
- Department of Physiology and Systems Bioscience, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Eunju Kim
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center At Houston, 6431 Fannin St., Houston, TX, 77030, USA
| | - Marvin Wirianto
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center At Houston, 6431 Fannin St., Houston, TX, 77030, USA
| | - Mark J Burish
- Department of Neurosurgery, The University of Texas Health Science Center at Houston, 6400 Fannin St., Houston, TX, 77030, USA
| | - Kazuhiro Yagita
- Department of Physiology and Systems Bioscience, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hyun Kyoung Lee
- Department of Pediatrics, Baylor College of Medicine, Neurological Research Institute, Texas Children's Hospital, Houston, TX, 77030, USA
| | - Zheng Chen
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center At Houston, 6431 Fannin St., Houston, TX, 77030, USA
| | - Jin Mo Chung
- Department of Neuroscience, Cell Biology and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Salahadin Abdi
- Division of Anesthesiology, Critical Care and Pain Medicine, Department of Pain Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Seung-Hee Yoo
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center At Houston, 6431 Fannin St., Houston, TX, 77030, USA.
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Incerta-thalamic Circuit Controls Nocifensive Behavior via Cannabinoid Type 1 Receptors. Neuron 2020; 107:538-551.e7. [PMID: 32502461 DOI: 10.1016/j.neuron.2020.04.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 11/06/2019] [Accepted: 04/28/2020] [Indexed: 11/20/2022]
Abstract
Pain is a source of substantial discomfort. Abnormal activity in both the zona incerta (ZI) and posterior complex of the thalamus (Po) are implicated in neuropathic pain, but their exact roles remain unclear. In particular, the precise cell types and molecular mechanisms of the ZI-Po circuit that regulate nociception are largely uncharacterized. Here, we found that parvalbumin (PV)-positive neuronal projections from the ventral ZI (ZIv) to the Po (ZIv-Po) are critical for promoting nocifensive behaviors, whereas selectively inhibiting ZIv-Po activity reduces nocifensive withdrawal responses. Furthermore, cannabinoid type 1 receptors (CB1Rs) are expressed specifically at ZIv-Po axon terminals in this circuit, and cannabinoids attenuate nocifensive responses through presynaptic inhibition. Selective inhibition of the ZIv-Po circuit or administration of cannabinoids into the Po are sufficient to ameliorate pathological pain. These findings identify the critical role of the ZIv-Po circuit and its modulation by endocannabinoids in controlling nocifensive behaviors.
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25
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Habib AM, Nagi K, Thillaiappan NB, Sukumaran V, Akhtar S. Vitamin D and Its Potential Interplay With Pain Signaling Pathways. Front Immunol 2020; 11:820. [PMID: 32547536 PMCID: PMC7270292 DOI: 10.3389/fimmu.2020.00820] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/09/2020] [Indexed: 12/12/2022] Open
Abstract
About 50 million of the U.S. adult population suffer from chronic pain. It is a complex disease in its own right for which currently available analgesics have been deemed woefully inadequate since ~20% of the sufferers derive no benefit. Vitamin D, known for its role in calcium homeostasis and bone metabolism, is thought to be of clinical benefit in treating chronic pain without the side-effects of currently available analgesics. A strong correlation between hypovitaminosis D and incidence of bone pain is known. However, the potential underlying mechanisms by which vitamin D might exert its analgesic effects are poorly understood. In this review, we discuss pathways involved in pain sensing and processing primarily at the level of dorsal root ganglion (DRG) neurons and the potential interplay between vitamin D, its receptor (VDR) and known specific pain signaling pathways including nerve growth factor (NGF), glial-derived neurotrophic factor (GDNF), epidermal growth factor receptor (EGFR), and opioid receptors. We also discuss how vitamin D/VDR might influence immune cells and pain sensitization as well as review the increasingly important topic of vitamin D toxicity. Further in vitro and in vivo experimental studies will be required to study these potential interactions specifically in pain models. Such studies could highlight the potential usefulness of vitamin D either alone or in combination with existing analgesics to better treat chronic pain.
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Affiliation(s)
- Abdella M Habib
- College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Karim Nagi
- College of Medicine, QU Health, Qatar University, Doha, Qatar
| | | | | | - Saghir Akhtar
- College of Medicine, QU Health, Qatar University, Doha, Qatar
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26
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Xiao D, Deng Q, Guo Y, Huang X, Zou M, Zhong J, Rao P, Xu Z, Liu Y, Hu Y, Shen Y, Jin K, Xiang M. Generation of self-organized sensory ganglion organoids and retinal ganglion cells from fibroblasts. SCIENCE ADVANCES 2020; 6:eaaz5858. [PMID: 32523990 PMCID: PMC7259937 DOI: 10.1126/sciadv.aaz5858] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 03/27/2020] [Indexed: 05/06/2023]
Abstract
Neural organoids provide a powerful tool for investigating neural development, modeling neural diseases, screening drugs, and developing cell-based therapies. Somatic cells have previously been reprogrammed by transcription factors (TFs) into sensory ganglion (SG) neurons but not SG organoids. We identify a combination of triple TFs Ascl1, Brn3b/3a, and Isl1 (ABI) as an efficient means to reprogram mouse and human fibroblasts into self-organized and networked induced SG (iSG) organoids. The iSG neurons exhibit molecular features, subtype diversity, electrophysiological and calcium response properties, and innervation patterns characteristic of peripheral sensory neurons. Moreover, we have defined retinal ganglion cell (RGC)-specific identifiers to demonstrate the ability for ABI to reprogram induced RGCs (iRGCs) from fibroblasts. Unlike iSG neurons, iRGCs maintain a scattering distribution pattern characteristic of endogenous RGCs. iSG organoids may serve as a model to decipher the pathogenesis of sensorineural diseases and screen effective drugs and a source for cell replacement therapy.
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Affiliation(s)
- Dongchang Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Qinqin Deng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yanan Guo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Xiuting Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Min Zou
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, Room 312B, 1130 St. Nicholas Ave., New York, NY 10032, USA
| | - Jiawei Zhong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Pinhong Rao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Zihui Xu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Yifan Liu
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Youjin Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Yin Shen
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Kangxin Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Mengqing Xiang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
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Rezaei Tavirani M, Rezaei Tavirani S, Zadeh-Esmaeel MM, Ali Ahmadi N. Introducing Critical Pain-related Genes: A System Biology Approach. Basic Clin Neurosci 2020; 10:401-408. [PMID: 32231777 PMCID: PMC7101522 DOI: 10.32598/bcn.9.10.310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 09/29/2018] [Accepted: 01/10/2019] [Indexed: 12/02/2022] Open
Abstract
Introduction: Pain is valuable in diagnosis and also warning of the patients. Many molecular reagents are introduced which are related to pain. In this research, the pain-related genes are screened to identify the critical ones. Methods: First, the pain-related genes were pulling out from the STRING database, and Cytoscape software was used to make the interactome unit. Then the central genes and their neighbors were analyzed. Finally, the genes were clustered, and the essential genes were introduced. Results: After analyzing 159 genes of the network, FOS, IL6, TNF, TAC1, IL8, and KNG1 were identified as the essential genes. Further analysis revealed that 88 genes are directly connected to the central genes. More resolution led to ignoring TNF and IL8 and considering SCN-alpha and PAICS as additional critical nodes. Conclusion: Six critical genes related to pain were identified. They can be potentially considered as new drug targets. Further investigation is required to introduce the central genes as a pain killer.
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Affiliation(s)
| | - Sina Rezaei Tavirani
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Nayeb Ali Ahmadi
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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28
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van Reij RR, Joosten EA, van den Hoogen NJ. Dopaminergic neurotransmission and genetic variation in chronification of post-surgical pain. Br J Anaesth 2019; 123:853-864. [DOI: 10.1016/j.bja.2019.07.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/10/2019] [Accepted: 07/26/2019] [Indexed: 01/30/2023] Open
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29
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Longo UG, Candela V, Berton A, Salvatore G, Guarnieri A, DeAngelis J, Nazarian A, Denaro V. Genetic basis of rotator cuff injury: a systematic review. BMC MEDICAL GENETICS 2019; 20:149. [PMID: 31477042 PMCID: PMC6720871 DOI: 10.1186/s12881-019-0883-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 08/26/2019] [Indexed: 01/02/2023]
Abstract
Background Rotator cuff disease is a widespread musculoskeletal pathology and a major cause of shoulder pain. Studies on familial predisposition suggest that genetic plays a role in the pathogenesis of rotator cuff disease. Several genes are responsible for rotator cuff disease. The aim of this study was to perform a systematic review on genetic association between rotator cuff disease and genes variations. Methods A systematic review of the literature was performed, in accordance with the PRISMA guidelines. PubMed, Medline, CINAHL, Cochrane, Embase and Google Scholar databases were searched comprehensively using the keywords: “Rotator cuff”, “Gene”, “Genetic”, “Predisposition”, “Single-nucleotide polymorphism” and “Genome-wide association”. Results 8 studies investigating genes variations associated with rotator cuff tears were included in this review. 6 studies were case-control studies on candidate genes and 2 studies were GWASs. A significant association between SNPs and rotator cuff disease was found for DEFB1, FGFR1, FGFR3, ESRRB, FGF10, MMP-1, TNC, FCRL3, SASH1, SAP30BP, rs71404070 located next to cadherin8. Contradictory results were reported for MMP-3. Conclusion Further investigations are warranted to identify complete genetic profiles of rotator cuff disease and to clarify the complex interaction between genes, encoded proteins and environment. This may lead to individualized strategies for prevention and treatment of rotator cuff disease. Level of evidence Level IV, Systematic Review.
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Affiliation(s)
- Umile Giuseppe Longo
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy.
| | - Vincenzo Candela
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Alessandra Berton
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Giuseppe Salvatore
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Andrea Guarnieri
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Joseph DeAngelis
- Carl J. Shapiro Department of Orthopaedic Surgery and Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Ara Nazarian
- Carl J. Shapiro Department of Orthopaedic Surgery and Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Vincenzo Denaro
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
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Kaliyaperumal S, Wilson K, Aeffner F, Dean C. Animal Models of Peripheral Pain: Biology Review and Application for Drug Discovery. Toxicol Pathol 2019; 48:202-219. [PMID: 31269874 DOI: 10.1177/0192623319857051] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pain is a complex constellation of cognitive, unpleasant sensory, and emotional experiences that primarily serves as a survival mechanism. Pain arises in the peripheral nervous system and pain signals synapse with nerve tracts extending into the central nervous system. Several different schemes are used to classify pain, including the underlying mechanism, tissues primarily affected, and time-course. Numerous animal models of pain, which should be employed with appropriate Institutional Animal Care and Use approvals, have been developed to elucidate pathophysiology mechanisms and aid in identification of novel therapeutic targets. The variety of available models underscores the observations that pain phenotypes are driven by several distinct mechanisms. Pain outcome measurement encompasses both reflexive (responses to heat, cold, mechanical and electrical stimuli) and nonreflexive (spontaneous pain responses to stimuli) behaviors. However, the question of translatability to human pain conditions and potential treatment outcomes remains a topic of continued scrutiny. In this review we discuss the different types of pain and their mechanisms and pathways, available rodent pain models with an emphasis on type of pain stimulations and pain outcome measures and discuss the role of pathologists in assessing and validating pain models.
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Affiliation(s)
| | | | | | - Charles Dean
- Amgen, Inc, Thousand Oaks, CA, USA *Both authors equally contributed to the manuscript
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31
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Polli A, Ickmans K, Godderis L, Nijs J. When Environment Meets Genetics: A Clinical Review of the Epigenetics of Pain, Psychological Factors, and Physical Activity. Arch Phys Med Rehabil 2019; 100:1153-1161. [DOI: 10.1016/j.apmr.2018.09.118] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 02/06/2023]
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Ashwell M, Freire M, O'Nan AT, Benito J, Hash J, McCulloch RS, Lascelles BDX. Characterization of gene expression in naturally occurring feline degenerative joint disease-associated pain. Vet J 2018; 243:42-47. [PMID: 30606438 PMCID: PMC7129418 DOI: 10.1016/j.tvjl.2018.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 12/27/2022]
Abstract
Nervous system tissue from cats with painful degenerative joint disease (DJD) was analyzed. Gene expression was determined to investigate the neurobiological signature of DJD pain. There was decreased NGF and increased CX3CL1 expression in the spinal cord in DJD-affected cats compared to healthy controls. There was increased expression of ATF3 and CX3CL1 in dorsal root ganglia, in DJD-affected cats compared to healthy controls. Such studies have the potential to inform about relevant targets for the control of chronic feline pain.
Degenerative joint disease (DJD) associated-pain is a clinically relevant and common condition affecting domesticated cats and other species including humans. Identification of the neurobiological signature of pain is well developed in rodent pain models, however such information is lacking from animals or humans with naturally occurring painful conditions. In this study, identification of housekeeping genes (HKG) for neuronal tissue and expression levels of genes considered associated with chronic pain in rodent models were explored in cats with naturally occurring osteoarthritic pain. Fourteen adult cats were evaluated — seven without clinical signs of osteoarthritic pain, and seven with hind limb radiographic DJD and pain. Expression of an investigator-selected set of pain signaling genes (including ASIC3, ATF3, COX2, CX3CL1, NAV1.7, NAV1.8, NAV1.9, NGF, NK1R, TNFα, TRKA) in lumbar spinal cord dorsal horn and lumbar dorsal root ganglia tissues from clinically healthy cats and cats with DJD were studied using quantitative RT-PCR (qPCR). HKG identified as the most stable across all tissue samples were many of the ribosomal protein genes, such as RPL30 and RPS19. qPCR results showed ATF3 and CX3CL1 up-regulated in DJD-affected dorsal root ganglia compared to clinically healthy controls. In spinal cord, CX3CL1 was up-regulated and NGF was down-regulated when DJD-affected samples were compared to healthy samples. Further work is needed to understand the neurobiology of pain in naturally occurring disease and what rodent models are predictive of these changes in more heterogeneous populations such as domestic cats.
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Affiliation(s)
- M Ashwell
- Livestock Genomics Laboratory, Department of Animal Science, North Carolina State University, Raleigh, NC, USA
| | - M Freire
- Translational Research in Pain, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA; Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - A T O'Nan
- Livestock Genomics Laboratory, Department of Animal Science, North Carolina State University, Raleigh, NC, USA
| | - J Benito
- Translational Research in Pain, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA; Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - J Hash
- Translational Research in Pain, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - R S McCulloch
- Department of Human Physiology, Gonzaga University, Spokane, WA, USA
| | - B D X Lascelles
- Translational Research in Pain, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA; Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA; Center for Pain Research and Innovation, UNC School of Dentistry, Chapel Hill, NC, USA; Center for Translational Pain Research, Department of Anesthesiology, Duke University, Durham, NC, USA.
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34
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Pan F, Jones G. Clinical Perspective on Pain and Pain Phenotypes in Osteoarthritis. Curr Rheumatol Rep 2018; 20:79. [DOI: 10.1007/s11926-018-0796-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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35
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Li P, Zhang H, Wang D, Tao Y, Zhang L, Zhang W, Wang X. An efficient nonlinear hybridization chain reaction-based sensitive fluorescent assay for in situ estimation of calcium channel protein expression on bone marrow cells. Anal Chim Acta 2018; 1041:25-32. [PMID: 30340687 DOI: 10.1016/j.aca.2018.08.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 08/13/2018] [Accepted: 08/15/2018] [Indexed: 02/03/2023]
Abstract
A sensitive and highly efficient approach to monitor the expression of proteins on live cells was urgently needed to demonstrate its factor and mechanism and most important for clinical diagnostics and molecular biology. Herein, we developed a simple and highly efficient strategy, nonlinear hybridization chain reaction (nonlinear HCR), for the sensitive determination of proteins on live cells with transient receptor potential vanilloid 4 (TRPV4) and RAW264.7 cells as a model. Unlike the normal hybridization chain reaction (HCR) with multiplicative amplification, an exponential amplified fluorescent response could be obtained in theory based on the proposed nonlinear HCR. As a result, the nonlinear HCR generated a significant enhancement about 3 times compared with the normal HCR and 10 times compared with the directly immunofluorescence assay. Based on the proposed nonlinear HCR, the fluorescent signals increased with the concentration of TRPV4 in the range from 10 pg/mL to 100 ng/mL with a detection limit of 2.8 pg/mL, which would be useful for the sensitive detection of proteins in cell lysis or on cell surface. At the same time, the significant improvements via nonlinear HCR were achieved in the fluorescent imaging system compared with traditional immunofluorescence staining and normal HCR, proving the significant value of nonlinear HCR-based amplification strategy. Success in the establishment of the highly efficient nonlinear HCR strategy offered a simple and sensitive approach to demonstrate the concentration of special proteins on cell and other proteins and nucleotide potentially, revealing a simple and efficient technology for research fields of clinical diagnostics and molecular biology.
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Affiliation(s)
- Ping Li
- Department of Maxillofacial &E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300020, PR China
| | - Hua Zhang
- Department of Maxillofacial &E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300020, PR China
| | - Dong Wang
- Department of Maxillofacial &E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300020, PR China
| | - Yingjie Tao
- Department of Maxillofacial &E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300020, PR China
| | - Lun Zhang
- Department of Maxillofacial &E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300020, PR China
| | - Wenchao Zhang
- Department of Maxillofacial &E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300020, PR China.
| | - Xudong Wang
- Department of Maxillofacial &E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300020, PR China.
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Dharaniprasad G, Samantaray A, Hanumantha Rao M, Chandra A, Sarma PVGK. Association of G472A allele of membrane bound catechol-O-methyltransferase gene with chronic post-sternotomy pain. Gen Thorac Cardiovasc Surg 2018; 67:806-810. [PMID: 30073475 DOI: 10.1007/s11748-018-0981-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/30/2018] [Indexed: 12/17/2022]
Abstract
Chronic persistent surgical pain (CPSP) is a complex disease with strong genetic component. The studies on revealed association of mutations in membrane bound catechol-O-methyltransferase gene with CPSP were reported indifferent ethnic populations across the globe. We identify that one out of four patients who underwent sternotomy procedure showed CPSP even after 3 months of surgery. The Mb.COMT gene sequence analysis revealed of the four patients, three patients had no mutation in Mb.COMT gene, while in one patient exhibited G472A mutation. Interestingly, this patient showed CPSP even after 90 days of surgery. The magnitude of the CPSP was evaluated with pain questionnaires' at the end of 3 months after discharge from the hospital. In this study 25% (1/4) showed presence G472A allele correlating with CPSP. Further the study suggested that evaluation of G472A allele of Mb.COMT gene in the patients undergoing sternotomy for monitoring pain in pre and post-surgical events.
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Affiliation(s)
- Goduguchintha Dharaniprasad
- Department of Anesthesiology and Critical care, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India
| | - Aloka Samantaray
- Department of Anesthesiology and Critical care, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India.
| | - Mangu Hanumantha Rao
- Department of Anesthesiology and Critical care, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India
| | - Abha Chandra
- Department of Cardio Vascular and Thoracic Surgery, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India
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Diez Bernal S, Lanz S, Schmutz I, Leeb T, Spadavecchia C. Induction of general anaesthesia by blowpipe darting in a fractious companion horse. VETERINARY RECORD CASE REPORTS 2018. [DOI: 10.1136/vetreccr-2018-000629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A fractious nine-year-old, 520-kg, neutered Swiss Warmblood was presented with a history of anorexia, progressive weight loss and mild hindlimb lameness. Because of its temperament, standard physical examination was considered to be only feasible under general anaesthesia. For safety reasons, general anaesthesia was planned to be induced by blowpipe darting. Two attempts are described and discussed in the present report. The first attempt, using a combination of medetomidine and tiletamine-zolazepam, was unsuccessful. Conversely, detomidine combined with butorphanol, followed by a second dart of detomidine and tiletamine-zolazepam, proved to be adequate to induce anaesthesia. Factors that could have influenced the outcome, such as different therapeutic approach, drug protocol and dosages, stress level, or genetic mutations, are presented and discussed.
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Pagé MG, Fortier M, Ware MA, Choinière M. As if one pain problem was not enough: prevalence and patterns of coexisting chronic pain conditions and their impact on treatment outcomes. J Pain Res 2018; 11:237-254. [PMID: 29416373 PMCID: PMC5790081 DOI: 10.2147/jpr.s149262] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION The presence of multiple coexisting chronic pain (CP) conditions (eg, low-back pain and migraines) within patients has received little attention in literature. The goals of this observational longitudinal study were to determine the prevalence of coexisting CP conditions, identify the most frequent ones and patterns of coexistence, investigate the relationships among patients' biopsychosocial characteristics and number of CP conditions, and determine the impact of coexisting CP conditions on treatment response. PATIENTS AND METHODS A total of 3,966 patients attending multidisciplinary pain-treatment centers who were enrolled in the Quebec Pain Registry were included. Patients completed self-report and nurse-administered questionnaires before their first visit and 6 months later. Results were analyzed using descriptive statistics, factor and cluster analyses, negative binomials with log-link generalized linear models, and linear mixed-effect models. RESULTS A third of patients reported coexisting CP conditions. No specific patterns of comorbidities emerged. The presence of coexisting CP conditions was associated with longer pain duration, older age, being female, and poorer quality of life. The presence of more than one CP condition did not have a clinically significant impact on treatment responses. DISCUSSION The novelty of the study results relate to the heterogeneity that was found in the patterns of coexistence of CP conditions and the fact that having multiple CP conditions did not clinically impact treatment response. These results highlight the need for future research that examines causes of coexistence among CP conditions across the spectrum of CP, as opposed to focusing on specific conditions, and to examine whether multiple CP conditions impact on additional domains, such as treatment satisfaction. These results highlight the importance of studying the pathophysiological mechanisms underlying the development of coexisting CP conditions, in order eventually to prevent/minimize their occurrence and/or develop optimal treatment and management approaches.
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Affiliation(s)
- M Gabrielle Pagé
- Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM)
- Department of Biomedical Sciences, Faculty of Medicine, Université de Montréal
| | - Maude Fortier
- Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM)
| | - Mark A Ware
- Department of Family Medicine
- Department of Anesthesia, Faculty of Medicine
- Alan Edwards Centre for Research on Pain, McGill University
| | - Manon Choinière
- Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM)
- Department of Anesthesiology, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
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Nuñez-Badinez P, Sepúlveda H, Diaz E, Greffrath W, Treede RD, Stehberg J, Montecino M, van Zundert B. Variable transcriptional responsiveness of the P2X3 receptor gene during CFA-induced inflammatory hyperalgesia. J Cell Biochem 2018; 119:3922-3935. [PMID: 29219199 DOI: 10.1002/jcb.26534] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/03/2017] [Indexed: 12/15/2022]
Abstract
The purinergic receptor P2X3 (P2X3-R) plays important roles in molecular pathways of pain, and reduction of its activity or expression effectively reduces chronic inflammatory and neuropathic pain sensation. Inflammation, nerve injury, and cancer-induced pain can increase P2X3-R mRNA and/or protein levels in dorsal root ganglia (DRG). However, P2X3-R expression is unaltered or even reduced in other pain studies. The reasons for these discrepancies are unknown and might depend on the applied traumatic intervention or on intrinsic factors such as age, gender, genetic background, and/or epigenetics. In this study, we sought to get insights into the molecular mechanisms responsible for inflammatory hyperalgesia by determining P2X3-R expression in DRG neurons of juvenile male rats that received a Complete Freund's Adjuvant (CFA) bilateral paw injection. We demonstrate that all CFA-treated rats showed inflammatory hyperalgesia, however, only a fraction (14-20%) displayed increased P2X3-R mRNA levels, reproducible across both sides. Immunostaining assays did not reveal significant increases in the percentage of P2X3-positive neurons, indicating that increased P2X3-R at DRG somas is not critical for inducing inflammatory hyperalgesia in CFA-treated rats. Chromatin immunoprecipitation (ChIP) assays showed a correlated (R2 = 0.671) enrichment of the transcription factor Runx1 and the epigenetic active mark histone H3 acetylation (H3Ac) at the P2X3-R gene promoter in a fraction of the CFA-treated rats. These results suggest that animal-specific increases in P2X3-R mRNA levels are likely associated with the genetic/epigenetic context of the P2X3-R locus that controls P2X3-R gene transcription by recruiting Runx1 and epigenetic co-regulators that mediate histone acetylation.
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Affiliation(s)
- Paulina Nuñez-Badinez
- Faculty of Biological Sciences and Faculty of Medicine, Center for Biomedical Research, Universidad Andres Bello, Santiago, Chile
| | - Hugo Sepúlveda
- Faculty of Biological Sciences and Faculty of Medicine, Center for Biomedical Research, Universidad Andres Bello, Santiago, Chile.,FONDAP Center for Genome Regulation, Santiago, Chile
| | - Emilio Diaz
- Faculty of Biological Sciences and Faculty of Medicine, Center for Biomedical Research, Universidad Andres Bello, Santiago, Chile
| | - Wolfgang Greffrath
- Centre for Biomedicine and Medical Technology Mannheim, Heidelberg University, Mannheim, Germany
| | - Rolf-Detlef Treede
- Centre for Biomedicine and Medical Technology Mannheim, Heidelberg University, Mannheim, Germany
| | - Jimmy Stehberg
- Faculty of Biological Sciences and Faculty of Medicine, Center for Biomedical Research, Universidad Andres Bello, Santiago, Chile
| | - Martin Montecino
- Faculty of Biological Sciences and Faculty of Medicine, Center for Biomedical Research, Universidad Andres Bello, Santiago, Chile.,FONDAP Center for Genome Regulation, Santiago, Chile
| | - Brigitte van Zundert
- Faculty of Biological Sciences and Faculty of Medicine, Center for Biomedical Research, Universidad Andres Bello, Santiago, Chile
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Abstract
Pain is an increasing clinical challenge affecting about half the population, with a substantial number of people suffering daily intense pain. Such suffering can be linked to the dramatic rise in opioid use and associated deaths in the United States. There is a pressing need for new analgesics with limited side effects. Here, we summarize what we know about the genetics of pain and implications for drug development. We make the case that chronic pain is not one but a set of disease states, with peripheral drive a key element in most. We argue that understanding redundancy and plasticity, hallmarks of the nervous system, is critical in developing analgesic drug strategies. We describe the exploitation of monogenic pain syndromes and genetic association studies to define analgesic targets, as well as issues associated with animal models of pain. We appraise present-day screening technologies and describe recent approaches to pain treatment that hold promise.
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Affiliation(s)
- Jane E Sexton
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, United Kingdom;
| | - James J Cox
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, United Kingdom;
| | - Jing Zhao
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, United Kingdom;
| | - John N Wood
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, United Kingdom;
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Abstract
Persistent or chronic postsurgical pain (CPSP) has been defined as 'pain persisting beyond 2 months'. The cut-off limit of 2 months has been controversial, and some researchers argue for a 3-month period for the definition of CPSP. Multiple mechanisms, including both patient and surgical, have been shown to influence this transition. Patient factors include age, gender, anxiety, depression, somatisation, catastrophising, pre-existing pain anywhere and pain at the site of surgery. The various surgical factors include site and nature of surgery, infection, inflammation and repeat surgery. There is evidence that pre- or post-op chemotherapy and radiotherapy can also contribute towards the chronification of pain after surgery. The question of why pain following surgery or trauma persists long after the normal healing time is not yet fully explained by current evidence. This is frustrating to healthcare providers and intensely disappointing to the patients, many of whom suffer in silence for years. Genetics is now being shown to influence both the onset and the perpetuation of chronic pain in the susceptible patient. The main mechanisms are believed to be 'single nucleotide polymorphisms' (SNPs) and 'epigenetics', both of which will be discussed, with current and ongoing research and evidence, in this review. The influence of SNPs has not been replicated in recent studies and researchers advise caution in interpreting past studies. More research is needed to demonstrate the involvement of epigenetics as well as linking SNPs to the susceptible patient's journey.
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Kuttapitiya A, Assi L, Laing K, Hing C, Mitchell P, Whitley G, Harrison A, Howe FA, Ejindu V, Heron C, Sofat N. Microarray analysis of bone marrow lesions in osteoarthritis demonstrates upregulation of genes implicated in osteochondral turnover, neurogenesis and inflammation. Ann Rheum Dis 2017; 76:1764-1773. [PMID: 28705915 PMCID: PMC5629942 DOI: 10.1136/annrheumdis-2017-211396] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/05/2017] [Accepted: 06/05/2017] [Indexed: 12/12/2022]
Abstract
Objective Bone marrow lesions (BMLs) are well described in osteoarthritis (OA) using MRI and are associated with pain, but little is known about their pathological characteristics and gene expression. We evaluated BMLs using novel tissue analysis tools to gain a deeper understanding of their cellular and molecular expression. Methods We recruited 98 participants, 72 with advanced OA requiring total knee replacement (TKR), 12 with mild OA and 14 non-OA controls. Participants were assessed for pain (using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)) and with a knee MRI (using MOAKS). Tissue was then harvested at TKR for BML analysis using histology and tissue microarray. Results The mean (SD) WOMAC pain scores were significantly increased in advanced OA 59.4 (21.3) and mild OA 30.9 (20.3) compared with controls 0.5 (1.28) (p<0.0001). MOAKS showed all TKR tissue analysed had BMLs, and within these lesions, bone marrow volume was starkly reduced being replaced by dense fibrous connective tissue, new blood vessels, hyaline cartilage and fibrocartilage. Microarray comparing OA BML and normal bone found a significant difference in expression of 218 genes (p<0.05). The most upregulated genes included stathmin 2, thrombospondin 4, matrix metalloproteinase 13 and Wnt/Notch/catenin/chemokine signalling molecules that are known to constitute neuronal, osteogenic and chondrogenic pathways. Conclusion Our study is the first to employ detailed histological analysis and microarray techniques to investigate knee OA BMLs. BMLs demonstrated areas of high metabolic activity expressing pain sensitisation, neuronal, extracellular matrix and proinflammatory signalling genes that may explain their strong association with pain.
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Affiliation(s)
- Anasuya Kuttapitiya
- Institute for Infection & Immunity, St George's, University of London, London, UK
| | - Lena Assi
- Institute for Infection & Immunity, St George's, University of London, London, UK
| | - Ken Laing
- Institute for Infection & Immunity, St George's, University of London, London, UK
| | - Caroline Hing
- St George's University Hospitals NHS Foundation Trust, London, UK
| | - Philip Mitchell
- St George's University Hospitals NHS Foundation Trust, London, UK
| | - Guy Whitley
- Institute for Molecular and Clinical Sciences, St George's, University of London, London, UK
| | - Abiola Harrison
- Institute for Infection & Immunity, St George's, University of London, London, UK
| | - Franklyn A Howe
- Institute for Molecular and Clinical Sciences, St George's, University of London, London, UK
| | - Vivian Ejindu
- St George's University Hospitals NHS Foundation Trust, London, UK
| | - Christine Heron
- St George's University Hospitals NHS Foundation Trust, London, UK
| | - Nidhi Sofat
- Institute for Infection & Immunity, St George's, University of London, London, UK
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Opioidergic tone and pain susceptibility: interactions between reward systems and opioid receptors. Pain 2017; 158:185-186. [PMID: 28092322 DOI: 10.1097/j.pain.0000000000000726] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Thiel C, Cordes H, Baier V, Blank LM, Kuepfer L. Multiscale modeling reveals inhibitory and stimulatory effects of caffeine on acetaminophen-induced toxicity in humans. CPT Pharmacometrics Syst Pharmacol 2017; 6:136-146. [PMID: 28130915 PMCID: PMC5321810 DOI: 10.1002/psp4.12153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/05/2016] [Accepted: 10/28/2016] [Indexed: 12/28/2022] Open
Abstract
Acetaminophen (APAP) is a widely used analgesic drug that is frequently co-administered with caffeine (CAF) in the treatment of pain. It is well known that APAP may cause severe liver injury after an acute overdose. However, the understanding of whether and to what extent CAF inhibits or stimulates APAP-induced hepatotoxicity in humans is still lacking. Here, a multiscale analysis is presented that quantitatively models the pharmacodynamic (PD) response of APAP during co-medication with CAF. Therefore, drug-drug interaction (DDI) processes were integrated into physiologically based pharmacokinetic (PBPK) models at the organism level, whereas drug-specific PD response data were contextualized at the cellular level. The results provide new insights into the inhibitory and stimulatory effects of CAF on APAP-induced hepatotoxicity for crucially affected key cellular processes and individual genes at the patient level. This study might facilitate the risk assessment of drug combination therapies in humans and thus may improve patient safety in clinical practice.
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Affiliation(s)
- C Thiel
- Institute of Applied Microbiology (iAMB), Aachen Biology and Biotechnology (ABBt), Rheinisch‐Westfälische Technische Hochschule (RWTH) Aachen UniversityAachenGermany
| | - H Cordes
- Institute of Applied Microbiology (iAMB), Aachen Biology and Biotechnology (ABBt), Rheinisch‐Westfälische Technische Hochschule (RWTH) Aachen UniversityAachenGermany
| | - V Baier
- Institute of Applied Microbiology (iAMB), Aachen Biology and Biotechnology (ABBt), Rheinisch‐Westfälische Technische Hochschule (RWTH) Aachen UniversityAachenGermany
| | - LM Blank
- Institute of Applied Microbiology (iAMB), Aachen Biology and Biotechnology (ABBt), Rheinisch‐Westfälische Technische Hochschule (RWTH) Aachen UniversityAachenGermany
| | - L Kuepfer
- Institute of Applied Microbiology (iAMB), Aachen Biology and Biotechnology (ABBt), Rheinisch‐Westfälische Technische Hochschule (RWTH) Aachen UniversityAachenGermany
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Sanders AE, Jain D, Sofer T, Kerr KF, Laurie CC, Shaffer JR, Marazita ML, Kaste LM, Slade GD, Fillingim RB, Ohrbach R, Maixner W, Kocher T, Bernhardt O, Teumer A, Schwahn C, Sipilä K, Lähdesmäki R, Männikkö M, Pesonen P, Järvelin M, Rizzatti-Barbosa CM, Meloto CB, Ribeiro-Dasilva M, Diatchenko L, Serrano P, Smith SB. GWAS Identifies New Loci for Painful Temporomandibular Disorder: Hispanic Community Health Study/Study of Latinos. J Dent Res 2017; 96:277-284. [PMID: 28081371 DOI: 10.1177/0022034516686562] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Temporomandibular disorder (TMD) is a musculoskeletal condition characterized by pain and reduced function in the temporomandibular joint and/or associated masticatory musculature. Prevalence in the United States is 5% and twice as high among women as men. We conducted a discovery genome-wide association study (GWAS) of TMD in 10,153 participants (769 cases, 9,384 controls) of the US Hispanic Community Health Study/Study of Latinos (HCHS/SOL). The most promising single-nucleotide polymorphisms (SNPs) were tested in meta-analysis of 4 independent cohorts. One replication cohort was from the United States, and the others were from Germany, Finland, and Brazil, totaling 1,911 TMD cases and 6,903 controls. A locus near the sarcoglycan alpha ( SGCA), rs4794106, was suggestive in the discovery analysis ( P = 2.6 × 106) and replicated (i.e., 1-tailed P = 0.016) in the Brazilian cohort. In the discovery cohort, sex-stratified analysis identified 2 additional genome-wide significant loci in females. One lying upstream of the relaxin/insulin-like family peptide receptor 2 ( RXP2) (chromosome 13, rs60249166, odds ratio [OR] = 0.65, P = 3.6 × 10-8) was replicated among females in the meta-analysis (1-tailed P = 0.052). The other (chromosome 17, rs1531554, OR = 0.68, P = 2.9 × 10-8) was replicated among females (1-tailed P = 0.002), as well as replicated in meta-analysis of both sexes (1-tailed P = 0.021). A novel locus at genome-wide level of significance (rs73460075, OR = 0.56, P = 3.8 × 10-8) in the intron of the dystrophin gene DMD (X chromosome), and a suggestive locus on chromosome 7 (rs73271865, P = 2.9 × 10-7) upstream of the Sp4 Transcription Factor ( SP4) gene were identified in the discovery cohort, but neither of these was replicated. The SGCA gene encodes SGCA, which is involved in the cellular structure of muscle fibers and, along with DMD, forms part of the dystrophin-glycoprotein complex. Functional annotation suggested that several of these variants reside in loci that regulate processes relevant to TMD pathobiologic processes.
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Affiliation(s)
- A E Sanders
- 1 Department of Dental Ecology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,2 Center for Pain Research and Innovation, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - D Jain
- 3 Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - T Sofer
- 3 Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - K F Kerr
- 3 Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - C C Laurie
- 3 Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - J R Shaffer
- 4 Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.,5 Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - M L Marazita
- 4 Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.,6 Center for Craniofacial and Dental Genetics, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,7 Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,8 Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,9 Clinical and Translational Science Institute, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - L M Kaste
- 10 Department of Pediatric Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - G D Slade
- 11 Department of Dental Ecology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,12 Pain Research & Intervention Center of Excellence, University of Florida, Gainesville, FL, USA
| | - R B Fillingim
- 12 Pain Research & Intervention Center of Excellence, University of Florida, Gainesville, FL, USA
| | - R Ohrbach
- 13 Department of Oral Diagnostic Sciences, University at Buffalo, Buffalo, NY, USA
| | - W Maixner
- 14 Department of Anesthesiology, Center for Translational Pain Medicine, Duke University, Durham, NC, USA
| | - T Kocher
- 15 Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pediatric Dentistry, University Medicine Greifswald, Greifswald, Germany
| | - O Bernhardt
- 15 Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pediatric Dentistry, University Medicine Greifswald, Greifswald, Germany
| | - A Teumer
- 16 Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - C Schwahn
- 17 Department of Prosthetic Dentistry, Gerodontology and Biomaterials, University Medicine Greifswald, Greifswald, Germany
| | - K Sipilä
- 18 Institute of Dentistry, University of Eastern Finland, Kuopio, Finland.,19 Oral and Maxillofacial Department, Kuopio University Hospital, Kuopio, Finland.,20 Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland.,21 Oral and Maxillofacial Department, Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | - R Lähdesmäki
- 20 Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland.,22 Oral and Maxillofacial Department, Medical Research Center Oulu, Oulu University Hospital, Finland
| | - M Männikkö
- 23 Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,24 Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - P Pesonen
- 20 Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - M Järvelin
- 25 Biocenter Oulu, University of Oulu, Center for Life Course Health Research, University of Oulu, Finland.,26 Unit of Primary Care, Oulu University Hospital, Oulu, Finland
| | - C M Rizzatti-Barbosa
- 27 Department of Prosthesis and Periodontology, Piracicaba Dental Scholl, University of Campinas, Piracicaba, Brazil
| | - C B Meloto
- 28 The Alan Edwards Centre for Research on Pain, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - M Ribeiro-Dasilva
- 29 University of Florida, College of Dentistry, Gainesville, FL, USA
| | - L Diatchenko
- 30 Alan Edwards Pain Centre, McGill University, Montreal, QC, Canada
| | - P Serrano
- 31 Piracicaba Dental School, State University of Campinas, Department of Prosthesis and Periodontology, Brazil
| | - S B Smith
- 14 Department of Anesthesiology, Center for Translational Pain Medicine, Duke University, Durham, NC, USA
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Saxena AK, Chilkoti GT, Chopra AK, Banerjee BD, Sharma T. Chronic persistent post-surgical pain following staging laparotomy for carcinoma of ovary and its relationship to signal transduction genes. Korean J Pain 2016; 29:239-248. [PMID: 27738502 PMCID: PMC5061640 DOI: 10.3344/kjp.2016.29.4.239] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 07/01/2016] [Accepted: 07/04/2016] [Indexed: 12/18/2022] Open
Abstract
Background The present study was undertaken to evaluate the incidence of chronic persistent post-surgical pain (CPPP) and the role of signal transduction genes in patients undergoing staging laparotomy for carcinoma ovary. Methods The present observational study was undertaken following institutional ethical committee approval and informed consent from all the participants. A total 21 patients of ASA grade I to III with age 20−70 years, scheduled for elective staging laparotomy for carcinoma ovary were included. Patients were excluded if had other causes of pain, cognitive dysfunction or chronic neurological disorders. Statistical analysis of pool data was done using SPSS version-17. For various scales like GPE, PDQ, NPSI, the visual analogue scale (VAS), global perceived effect (GPE), the pain DETECT questionnaire (PDQ), and neuropathic pain symptoms inventory (NPSI), one factor repaeted measure ANOVA applied with simple contrast with baseline as on post-operative day 1 (considered as reference and compared with subsequent time-interval), and the P values were adjusted according to "Bonferroni adjustments". In patients with CPPP, the Δct values of mRNA expressions of genes at the end of postoperative day 90 were compared with the baseline control values by one factor repeated ANOVA. P value < 0.005 significant. Results The present study demonstrates 38.1% (8 out of 21 patients) incidence of CPPP. The functional status and quality of life as were observed to be significantly diminished in all patients with chronic pain. An up-regulation in the mRNA expression of signal transduction and a positive correlation was noted between the mRNA expression of signal transduction genes and VAS score in all patients with CPPP at the end of postoperative day 90. Conclusions The reported incidence of CPPP in patients with carcinoma ovary was 38.1%. An up-regulation and positive correlation between mRNA expression of signal transduction genes and VAS score depicts its potential role in the pathogenesis of CPPP.
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Affiliation(s)
- Ashok Kumar Saxena
- Department of Anesthesiology and Critical Care, University College of Medical Sciences and Guru Teg Bahadur Hospital, Shahdara, Delhi, India
| | - Geetanjali T Chilkoti
- Department of Anesthesiology and Critical Care, University College of Medical Sciences and Guru Teg Bahadur Hospital, Shahdara, Delhi, India
| | - Anand K Chopra
- Department of Anesthesiology and Critical Care, University College of Medical Sciences and Guru Teg Bahadur Hospital, Shahdara, Delhi, India
| | - Basu Dev Banerjee
- Department of Biochemistry, University College of Medical Sciences and Guru Teg Bahadur Hospital, Shahdara, Delhi, India
| | - Tusha Sharma
- Department of Biochemistry, University College of Medical Sciences and Guru Teg Bahadur Hospital, Shahdara, Delhi, India
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A data science approach to candidate gene selection of pain regarded as a process of learning and neural plasticity. Pain 2016; 157:2747-2757. [DOI: 10.1097/j.pain.0000000000000694] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Hautala AJ, Karppinen J, Seppanen T. Short-term assessment of autonomic nervous system as a potential tool to quantify pain experience. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2016; 2016:2684-2687. [PMID: 28268874 DOI: 10.1109/embc.2016.7591283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Various pain conditions may result in altered autonomic nervous system regulation. We evaluated whether autonomic regulation, analyzed with short-term heart rate variability (HRV), differs between low back pain (LBP) patients and healthy controls. Additionally, we tested if short-term HRV recordings are feasible and informative in planning home monitoring of LBP patients. The study population consisted of 16 volunteers (8 LBP patients and 8 healthy subjects) (age 42±10 years, body mass index 26±4 kg/m2, 7 men and 9 women). Usually 3- to 5-minute R-R interval recordings have been used as short-term recordings of HRV, but recent evidence supports even shorter R-R interval recording procedure for short-term HRV assessment. We collected R-R interval data for 1 minute in sitting, standing and bending down tasks. Mean heart rate (HR) and vagally mediated beat-to-beat variability (SD1 and rMSSD) were analyzed. The results showed that autonomic nervous system function assessed with the short-term measurement HRV method differentiates LBP patients from healthy controls in sitting and standing. Vagally mediated SD1 and rMSSD were significantly lower and the HR was higher among the patients compared to the controls. A novel finding was also the feasibility of 1-minute measurement of HRV, which may open entirely new opportunities to assess accurately concomitant changes in autonomic nervous system function and self-reported individual pain experience. This could lead to a more personalized pain treatment and more efficient health care resource allocation as the new measurement methods is more suitable for home monitoring than the previously used ones.
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Gonzalez-Pena D, Nixon SE, Southey BR, Lawson MA, McCusker RH, Hernandez AG, Dantzer R, Kelley KW, Rodriguez-Zas SL. Differential Transcriptome Networks between IDO1-Knockout and Wild-Type Mice in Brain Microglia and Macrophages. PLoS One 2016; 11:e0157727. [PMID: 27314674 PMCID: PMC4912085 DOI: 10.1371/journal.pone.0157727] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 05/06/2016] [Indexed: 11/19/2022] Open
Abstract
Microglia in the brain and macrophages in peripheral organs are cell types responsible for immune response to challenges. Indoleamine 2,3-dioxygenase 1 (IDO1) is an immunomodulatory enzyme of the tryptophan pathway that is expressed in the brain. The higher activity of IDO1 in response to immune challenge has been implicated in behavioral disorders. The impact of IDO1 depletion on the microglia transcriptome has not been studied. An investigation of the transcript networks in the brain microglia from IDO1-knockout (IDO1-KO) mice was undertaken, relative to peripheral macrophages and to wild-type (WT) mice under unchallenged conditions. Over 105 transcript isoforms were differentially expressed between WT and IDO1-KO within cell type. Within microglia, Saa3 and Irg1 were over-expressed in IDO1-KO relative to WT. Within macrophages, Csf3 and Sele were over-expressed in IDO1-KO relative to WT. Among the genes differentially expressed between strains, enriched biological processes included ion homeostasis and ensheathment of neurons within microglia, and cytokine and chemokine expression within macrophages. Over 11,110 transcript isoforms were differentially expressed between microglia and macrophages and of these, over 10,800 transcripts overlapped between strains. Enriched biological processes among the genes over- and under-expressed in microglia relative to macrophages included cell adhesion and apoptosis, respectively. Detected only in microglia or macrophages were 421 and 43 transcript isoforms, respectively. Alternative splicing between cell types based on differential transcript isoform abundance was detected in 210 genes including Phf11d, H2afy, and Abr. Across strains, networks depicted a predominance of genes under-expressed in microglia relative to macrophages that may be a precursor for the different response of both cell types to challenges. The detected transcriptome differences enhance the understanding of the role of IDO1 in the microglia transcriptome under unchallenged conditions.
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Affiliation(s)
- Dianelys Gonzalez-Pena
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, Illinois, United States of America
| | - Scott E. Nixon
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, Illinois, United States of America
| | - Bruce R. Southey
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, Illinois, United States of America
| | - Marcus A. Lawson
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, Illinois, United States of America
| | - Robert H. McCusker
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, Illinois, United States of America
| | - Alvaro G. Hernandez
- Department of Symptom Research, University of Texas M. D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Robert Dantzer
- High-Throughput Sequencing and Genotyping Unit, Roy J. Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Keith W. Kelley
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, Illinois, United States of America
| | - Sandra L. Rodriguez-Zas
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, Illinois, United States of America
- Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, Illinois, United States of America
- Carle Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
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Białecka M, Jurewicz A, Cięszczyk P, Machoy-Mokrzyńska A, Kurzawski M, Leźnicka K, Dziedziejko V, Safranow K, Droździk M, Bohatyrewicz A. Catechol-oxide-methyltransferase (COMT rs4680:G>A) gene polymorphism does not affect analgesics’ demand after elective hip replacement. RUSS J GENET+ 2016. [DOI: 10.1134/s1022795416030042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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