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Posey KL. Curcumin and Resveratrol: Nutraceuticals with so Much Potential for Pseudoachondroplasia and Other ER-Stress Conditions. Biomolecules 2024; 14:154. [PMID: 38397390 PMCID: PMC10886985 DOI: 10.3390/biom14020154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Natural products with health benefits, nutraceuticals, have shown considerable promise in many studies; however, this potential has yet to translate into widespread clinical use for any condition. Notably, many drugs currently on the market, including the first analgesic aspirin, are derived from plant extracts, emphasizing the historical significance of natural products in drug development. Curcumin and resveratrol, well-studied nutraceuticals, have excellent safety profiles with relatively mild side effects. Their long history of safe use and the natural origins of numerous drugs contrast with the unfavorable reputation associated with nutraceuticals. This review aims to explore the nutraceutical potential for treating pseudoachondroplasia, a rare dwarfing condition, by relating the mechanisms of action of curcumin and resveratrol to molecular pathology. Specifically, we will examine the curcumin and resveratrol mechanisms of action related to endoplasmic reticulum stress, inflammation, oxidative stress, cartilage health, and pain. Additionally, the barriers to the effective use of nutraceuticals will be discussed. These challenges include poor bioavailability, variations in content and purity that lead to inconsistent results in clinical trials, as well as prevailing perceptions among both the public and medical professionals. Addressing these hurdles is crucial to realizing the full therapeutic potential of nutraceuticals in the context of pseudoachondroplasia and other health conditions that might benefit.
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Affiliation(s)
- Karen L Posey
- Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX 77030, USA
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2
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Wang B, Jiang HM, Qi LM, Li X, Huang Q, Xie X, Xia Q. Deciphering resveratrol's role in modulating pathological pain: From molecular mechanisms to clinical relevance. Phytother Res 2024; 38:59-73. [PMID: 37795923 DOI: 10.1002/ptr.8021] [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: 05/22/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 10/06/2023]
Abstract
Pathological pain, a multifaceted and debilitating ailment originating from injury or post-injury inflammation of the somatosensory system, poses a global health challenge. Despite its ubiquity, reliable therapeutic strategies remain elusive. To solve this problem, resveratrol, a naturally occurring nonflavonoid polyphenol, has emerged as a potential beacon of hope owing to its anti-inflammatory, antioxidant, and immunomodulatory capabilities. These properties potentially position resveratrol as an efficacious candidate for the management of pathological pain. This concise review summaries current experimental and clinical findings to underscore the therapeutic potential of resveratrol in pathological pain, casting light on the complex underlying pathophysiology. Our exploration suggests that resveratrol may exert its analgesic effect by the modulating pivotal signaling pathways, including PI3K/Akt/mTOR, TNFR1/NF-κB, MAPKs, and Nrf2. Moreover, resveratrol appears to attenuate spinal microglia activation, regulate primary receptors in dorsal root sensory neurons, inhibit pertinent voltage-gated ion channels, and curb the expression of inflammatory mediators and oxidative stress responses. The objective of this review is to encapsulate the pharmacological activity of resveratrol, including its probable signaling pathways, pharmacokinetics, and toxicology pertinent to the treatment of pathological pain. Hopefully, we aim to map out promising trajectories for the development of resveratrol as a potential analgesic.
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Affiliation(s)
- Biao Wang
- School of Pharmacy, Sichuan College of Traditional Chinese Medicine, Mianyang, China
| | - Hai-Mei Jiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lu-Ming Qi
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qun Huang
- Department of Ophthalmology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xin Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qing Xia
- School of Pharmacy, Sichuan College of Traditional Chinese Medicine, Mianyang, China
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3
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Jang SH, Park SJ, Kim KA, Han SK. Resveratrol activates GABA A and/or glycine receptors on substantia gelatinosa neurons of the subnucleus caudalis in mice. Nat Prod Res 2022; 36:5788-5792. [PMID: 35086401 DOI: 10.1080/14786419.2021.2016746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Although a number of studies have reported that resveratrol has analgesic effects, the direct effect of resveratrol on substantia gelatinosa (SG) neurons of the trigeminal subnucleus caudalis (Vc) involved in orofacial nociceptive transmission has not been clearly examined. Thus, the objective of this study was to investigate effects of resveratrol on SG neurons of Vc in mice using a whole-cell patch-clamp technique. Resveratrol (500 μM) induced repeatable inward currents without desensitisation. Resveratrol-induced inward currents were shown in a concentration-dependent manner. Resveratrol-induced responses were sustained in the presence of tetrodotoxin, 6-cyano-7-nitroquinoxaline-2,3-dione (CNQX), and DL-2-Amino-5-phosphonovaleric acid (DL-AP5). However, resveratrol-induced inward currents were suppressed in the presence of picrotoxin and strychnine. These results indicate that resveratrol can directly act on SG neurons of Vc with possible inhibitory effects on SG neurons through activation of GABAA receptors and/or glycine receptors. Thus, resveratrol can be a potential therapeutic for orofacial pain modulation.
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Affiliation(s)
- Seon Hui Jang
- Department of Oral Physiology, School of Dentistry & Institute of Oral Bioscience, Jeonbuk National University, Jeonju, Republic of Korea
| | - Soo Joung Park
- Department of Oral Physiology, School of Dentistry & Institute of Oral Bioscience, Jeonbuk National University, Jeonju, Republic of Korea
| | - Kyoung-A Kim
- Department of Oral and Maxillofacial Radiology, School of Dentistry& Institute of Oral Bioscience, Jeonbuk National University, Jeonju, Republic of Korea.,Research Institute of Clinical Medicine, of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Seong Kyu Han
- Department of Oral Physiology, School of Dentistry & Institute of Oral Bioscience, Jeonbuk National University, Jeonju, Republic of Korea.,Research Institute of Clinical Medicine, of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
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4
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Guo J, Wang C, Niu X, Zhou F, Li H, Gao W. Effects of resveratrol in the signaling of neuropathic pain involving P2X3 in the dorsal root ganglion of rats. Acta Neurol Belg 2021; 121:365-372. [PMID: 30989502 DOI: 10.1007/s13760-019-01126-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 03/16/2019] [Indexed: 12/18/2022]
Abstract
Neuropathic pain is a major public health problem because it has a considerable impact on life quality of patients. Neuropathic pain caused by a lesion or disease of the somatosensory nervous system, which causes unpleasant and abnormal sensation (dysesthesia), an increased response to painful stimuli (hyperalgesia), and pain in response to a stimulus that does not normally provoke pain (allodynia). P2X receptors from dorsal root ganglion (DRG) play a crucial role in facilitating pain transmission at peripheral and spinal sites. Resveratrol (Res) has neuroprotective effects and improves the pathological and behavioral outcomes of various types of nerve injury. The present study examined the effects of Res on neuropathic pain. Neuropathic pain animal model was created by partial sciatic nerve ligation (pSNL) surgery. We found that consecutive intraperitoneal administration of Res for 21 days reduced the mechanical and thermal nociceptive responses induced by pSNL in a dose-dependent manner. Moreover, Res administration reversed P2X3 expression and phosphorylation of ERK in DRG neurons after peripheral nerve injury. Our results suggested that Res may ameliorate neuropathic pain by suppressing P2X3 up-regulation and ERK phosphorylation in DRG of neuropathic pain rats. Therefore, we concluded that Res has a significant analgesic effect on alleviating neuropathic pain, and thus may serve as a therapeutic approach for neuropathic pain.
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Affiliation(s)
- Jinhui Guo
- Department of Pharmaceutics, the First Affiliated Hospital of Xinxiang Medical University, No. 88 Jiankang Road, Weihui, 453100, Henan, People's Republic of China.
| | - Chaowei Wang
- Department of Neurology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, Henan, People's Republic of China
| | - Xiaolu Niu
- Department of Neurology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, Henan, People's Republic of China
| | - Fang Zhou
- Department of Pharmaceutics, the First Affiliated Hospital of Xinxiang Medical University, No. 88 Jiankang Road, Weihui, 453100, Henan, People's Republic of China
| | - Huiling Li
- Department of Pharmaceutics, the First Affiliated Hospital of Xinxiang Medical University, No. 88 Jiankang Road, Weihui, 453100, Henan, People's Republic of China
| | - Weifang Gao
- Department of Pharmaceutics, the First Affiliated Hospital of Xinxiang Medical University, No. 88 Jiankang Road, Weihui, 453100, Henan, People's Republic of China
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5
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Zhang Y, Huang F, Xu Y, Xiang W, Xie C. TRPV1 is involved in the antinociceptive effects of resveratrol in paclitaxel-induced neuropathic pain. ALL LIFE 2021. [DOI: 10.1080/26895293.2020.1861111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Yaodong Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Fengyu Huang
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Yinfeng Xu
- Department of Orthopaedics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Wei Xiang
- Department of Orthopaedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, People’s Republic of China
| | - Chaofan Xie
- Department of Orthopaedics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People’s Republic of China
- Department of Orthopaedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, People’s Republic of China
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Piegang BN, Ndjateu FST, Tene M, Bomba FDT, Tseuguem PP, Nguelefack TB. Antinociceptive, anti-inflammatory and antioxidant effects of Boerhavia coccinea extracts and fractions on acute and persistent inflammatory pain models. J Basic Clin Physiol Pharmacol 2020; 32:/j/jbcpp.ahead-of-print/jbcpp-2020-0118/jbcpp-2020-0118.xml. [PMID: 33161387 DOI: 10.1515/jbcpp-2020-0118] [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: 05/16/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
Background Boerhavia coccinea (Nyctaginaceae) is an herbaceous plant used for the treatment of pain. The aim of this study was to evaluate the antinociceptive and anti-inflammatory activities of the aqueous (AEBC) and ethanol (EEBC) extracts of Boerhavia coccinea as well as the major fractions (F1, F2 and F3) from EEBC. Methods The antinociceptive effect of the extracts and fractions was evaluated using formalin test. AEBC, EEBC and F1 were selected and further evaluated acutely (24 h) and chronically (16 days) in Complete Freund's Adjuvant (CFA)-induced persistent inflammatory pain for their antihyperalgesic and anti-inflammatory effects. They were administered orally (100 and 200 mg/kg/day) from 48 h following the intraplantar injection of 100 µL of CFA. After the 16 days of chronic treatment, rats' spinal cord and brain were collected for the evaluation of oxidative stress parameters namely nitric oxide (NO), malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT). Results AEBC, EEBC and F1 significantly inhibited the first and second phases of the formalin-induced pain. They significantly reduced the hyperalgesia both in acute and chronic treatments. These extracts showed no acute anti-inflammatory effect. AEBC and EEBC exhibited anti-inflammatory activities after repeated administration. AEBC, EEBC and F1 significantly reduced MDA level and significantly increased SOD and catalase activities, mainly in the spinal cord. AEBC and EEBC also reduced the NO production in the spinal cord. Conclusions Boerhavia coccinea extracts and F1 possess potent antinociceptive activity which is not related to their anti-inflammatory properties. Their antioxidant effects may contribute to these activities in chronic treatment.
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Affiliation(s)
- Basile Nganmegne Piegang
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
- and Institut Universitaire du Golf de Guinée (IUG), Institut Supérieur des Sciences Appliquées (ISA), Douala, Cameroon
| | - Fabrice Sterlin Tchantchou Ndjateu
- Laboratory of Natural Product Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Mathieu Tene
- Laboratory of Natural Product Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Francis Désiré Tatsinkou Bomba
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Pius Pum Tseuguem
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Télesphore Benoit Nguelefack
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
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Kumar S, Vinayak M. Quercetin Ameliorates CFA-Induced Chronic Inflammatory Hyperalgesia via Modulation of ROS-Mediated ERK1/2 Signaling and Inhibition of Spinal Glial Activation In Vivo. Neuromolecular Med 2020; 22:517-533. [DOI: 10.1007/s12017-020-08609-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/11/2020] [Indexed: 01/26/2023]
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8
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Kumar S, Vinayak M. NADPH oxidase1 inhibition leads to regression of central sensitization during formalin induced acute nociception via attenuation of ERK1/2-NFκB signaling and glial activation. Neurochem Int 2019; 134:104652. [PMID: 31891736 DOI: 10.1016/j.neuint.2019.104652] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/02/2019] [Accepted: 12/19/2019] [Indexed: 12/18/2022]
Abstract
Role of NADPH oxidase1 in the development of inflammatory pain has been demonstrated by gene knockout studies. Nevertheless, pharmacological inhibition of NOX1 is a requisite approach for therapeutic utility. Recently, we have reported the anti-nociceptive effect of newly identified NOX1 specific inhibitor ML171 (2-acetylphenothiazine). Inhibition of NOX1 resulted in attenuation of nociceptive sensitization during acute inflammatory pain via inhibition of ROS generation and its downstream ERK1/2 activation. However, glial activation accompanying inflammation is closely related to the initiation and maintenance of pain. Peripheral nociceptive inputs activate the primary afferents via release of various chemical mediators which are potentially capable of mediating signals from neuron to glia in DRG and subsequently in spinal cord dorsal horn. The subsequent interactions between neuron and glia contribute to pain hypersensitivity. Thus, the present study was focused to investigate the effect of ML171 on ERK1/2 signaling, glial activation, and crosstalk between neuron and glia in a mouse model of formalin induced acute nociception. Thus, the present study was focused to investigate the effect of ML171 on ERK1/2 signaling, glial activation, and crosstalk between neuron and glia in DRG and dorsal horn of the spinal cord of lumbar region (L3-L5) in a mouse model of formalin induced acute nociception. Intraperitoneal administration of ML171 decreased nociceptive behavioral responses, i.e. the flinch and lick counts, in formalin induced nociceptive mice. Immunofluorescence and Western blot analysis demonstrated decreased levels of nociceptive mediators like p-ERK1/2, p-NFκB p65, Iba1 and GFAP in DRG as well as in spinal cord dorsal horn; supporting anti-nociceptive potential of ML171. Further, co-localization studies showed the neuron-glia crosstalk in tissue dependent manner. ERK1/2 was found to be activated in glia and NFκB in neurons in DRG; whereas in case of spinal cord ERK1/2 was activated in neurons and NFκB in astrocytes. Decrease in nociceptive behavioral response and activation of nociceptive mediators after intraperitoneal administration of ML171 strongly advocate anti-nociceptive potential of ML171. This is the first report demonstrating modulation of ERK1/2-NFκB signaling pathway, glial activation and regulation of neuron-glia crosstalk by NADPH oxidase1 inhibition towards its anti-nociceptive action.
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Affiliation(s)
- Sanjay Kumar
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
| | - Manjula Vinayak
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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ML171, a specific inhibitor of NOX1 attenuates formalin induced nociceptive sensitization by inhibition of ROS mediated ERK1/2 signaling. Neurochem Int 2019; 129:104466. [DOI: 10.1016/j.neuint.2019.104466] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/23/2019] [Accepted: 05/12/2019] [Indexed: 12/22/2022]
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10
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Li J, Ji J, Xu R, Li Z. Indole compounds with N-ethyl morpholine moieties as CB2 receptor agonists for anti-inflammatory management of pain: synthesis and biological evaluation. MEDCHEMCOMM 2019; 10:1935-1947. [PMID: 32952995 DOI: 10.1039/c9md00173e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 09/08/2019] [Indexed: 01/09/2023]
Abstract
The CB2 receptor plays a crucial role in analgesia and anti-inflammation. To develop novel CB2 agonists with high efficacy and selectivity, a series of indole derivatives with N-ethyl morpholine moieties (compounds 1-56) were designed, synthesized and biologically evaluated. Compounds 1, 2, 3, 46 and 53 exhibited high CB2 receptor affinity at low nanomolar concentrations and good receptor selectivity (EC50(CB1)/EC50(CB2) greater than 1000). The most active compound, compound 2, was more potent than the standard drug GW405833 for in vitro agonistic action on the CB2 receptor. More importantly, in a rat model for CFA-induced inflammatory hyperalgesia, compound 2 had a potent anti-inflammatory pain effect within 12 hours after administration. At the 1 h time point, compound 2 had a dose-dependent reversal for hyperalgesia with an estimated ED50 value of 1.097 mg kg-1. Moreover, compound 2 significantly suppressed the pro-inflammatory cytokines (IL-1β, IL-6 and TNF-α) in CFA-induced lesions. These protective effects of compound 2 on inflammatory pain were superior to those of GW405833, suggesting that compound 2 may be a promising therapeutic drug that needs further validation.
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Affiliation(s)
- Jiaojiao Li
- Pharmacy School , Jiangsu Ocean University , Lianyungang 222005 , China
| | - Jing Ji
- Pharmacy School , Jiangsu Ocean University , Lianyungang 222005 , China.,Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening , Jiangsu Ocean University , Lianyungang 222005 , China
| | - Ruibo Xu
- Pharmacy School , Jiangsu Ocean University , Lianyungang 222005 , China
| | - Zhengfu Li
- School of Computer Engineering , Jiangsu Ocean University , Lianyungang 222005 , Chinali .
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Guo R, Zhou Y, Long H, Shan D, Wen J, Hu H, Yang H, Wu Z, Lai W. Transient receptor potential Vanilloid 1-based gene therapy alleviates orthodontic pain in rats. Int J Oral Sci 2019; 11:11. [PMID: 30853711 PMCID: PMC6409362 DOI: 10.1038/s41368-019-0044-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 12/06/2018] [Accepted: 12/13/2018] [Indexed: 02/05/2023] Open
Abstract
Orthodontic pain that is induced by tooth movement is an important sequela of orthodontic treatment and has a significant effect on patient quality of life. Studies have shown that the high expression of transient receptor potential vanilloid 1 (TRPV1) in trigeminal ganglions plays a vital role in the transmission and modulation of orofacial pain. However, little is known about the role of TRPV1 in orthodontic pain. In this study, male Sprague-Dawley rats were randomly assigned to six groups to study the role of TRPV1 in the modulation of tooth-movement pain. The expression levels of TRPV1 mRNA and protein were determined by real-time PCR and western blot, respectively. Moreover, pain levels were assessed using the rat grimace scale (RGS). The role of TRPV1 in modulating tooth-movement pain was examined by injecting a TRPV1 antagonist into the trigeminal ganglia of rats. A lentivirus containing a TRPV1 shRNA sequence was constructed and transduced into the rats' trigeminal ganglia. The results showed that the expression levels of TRPV1 protein and mRNA were elevated following tooth-movement pain. Pain levels increased rapidly on the 1st day, peaked on the 3rd day and returned to baseline on the 14th day. The TRPV1 antagonist significantly reduced tooth-movement pain. The lentivirus containing a TRPV1 shRNA sequence was able to inhibit the expression of TRPV1 and relieved tooth-movement pain. In conclusion, TRPV1-based gene therapy may be a treatment strategy for the relief of orthodontic pain.
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Affiliation(s)
- Rui Guo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yang Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hu Long
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - Di Shan
- Jiangsu Key Laboratory of Oral Diseases, Department of Orthodontics, Stomatology Hospital Affiliated with Nanjing Medical University, Nanjing, China
| | - Jing Wen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Huimin Hu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hong Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhouqiang Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Wenli Lai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Nasseri B, Zaringhalam J, Daniali S, Manaheji H, Abbasnejad Z, Nazemian V. Thymulin treatment attenuates inflammatory pain by modulating spinal cellular and molecular signaling pathways. Int Immunopharmacol 2019; 70:225-234. [PMID: 30851702 DOI: 10.1016/j.intimp.2019.02.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/23/2018] [Accepted: 02/25/2019] [Indexed: 12/11/2022]
Abstract
Thymulin is a peptide hormone which is mainly produced by thymic epithelial cells and it has immune-modulatory and anti-inflammatory effects. In this study, we investigated the effects of different doses and various timings of thymulin intraperitoneal administration on spinal microglial activity and intracellular pathways in an inflammatory rat model of Complete Freund's adjuvant (CFA). Thymulin treatment was implemented following CFA-induced inflammation for 21 days. After conducting behavioral tests (edema and hyperalgesia), the cellular and molecular aspects were examined to detect the thymulin effect on inflammatory factors and microglial activity. We demonstrated that thymulin treatment notably reduced thermal hyperalgesia and paw edema induced by CFA. Furthermore, molecular investigations showed that thymulin reduced CFA-induced activation of microglia cells, phosphorylation of p38 MAPK and the production of spinal pro-inflammatory cytokines (TNF-α, IL-6) during the study. Our results suggest that thymulin treatment attenuates CFA-induced inflammation. This effect may be mediated by inhibition of spinal microglia and production of central inflammatory mediators which seems to be associated with the ability of thymulin to reduce p38 MAPK phosphorylation. These data provide evidence of the anti-hyperalgesic effect of thymulin on inflammatory pain and characterize some of the underlying spinal mechanisms.
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Affiliation(s)
- Behzad Nasseri
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Neurophysiology Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jalal Zaringhalam
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Neuroscience Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Samira Daniali
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Homa Manaheji
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Neuroscience Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Abbasnejad
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vida Nazemian
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Neurophysiology Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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13
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Singh AK, Kumar S, Vinayak M. Recent development in antihyperalgesic effect of phytochemicals: anti-inflammatory and neuro-modulatory actions. Inflamm Res 2018; 67:633-654. [PMID: 29767332 DOI: 10.1007/s00011-018-1156-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Pain is an unpleasant sensation triggered by noxious stimulation. It is one of the most prevalent conditions, limiting productivity and diminishing quality of life. Non steroidal anti inflammatory drugs (NSAIDs) are widely used as pain relievers in present day practice as pain is mostly initiated due to inflammation. However, due to potentially serious side effects, long term use of these antihyperalgesic drugs raises concern. Therefore there is a demand to search novel medicines with least side effects. Herbal products have been used for centuries to reduce pain and inflammation, and phytochemicals are known to cause fewer side effects. However, identification of active phytochemicals of herbal medicines and clear understanding of the molecular mechanism of their action is needed for clinical acceptance. MATERIALS AND METHODS In this review, we have briefly discussed the cellular and molecular changes during hyperalgesia via inflammatory mediators and neuro-modulatory action involved therein. The review includes 54 recently reported phytochemicals with antihyperalgesic action, as per the literature available with PubMed, Google Scholar and Scopus. CONCLUSION Compounds of high interest as potential antihyperalgesic agents are: curcumin, resveratrol, capsaicin, quercetin, eugenol, naringenin and epigallocatechin gallate (EGCG). Current knowledge about molecular targets of pain and their regulation by these phytochemicals is elaborated and the scope of further research is discussed.
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Affiliation(s)
- Ajeet Kumar Singh
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.,Department of Zoology, CMP Degree College, University of Allahabad, Allahabad, 211002, India
| | - Sanjay Kumar
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Manjula Vinayak
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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Xu M, Cheng Z, Ding Z, Wang Y, Guo Q, Huang C. Resveratrol enhances IL-4 receptor-mediated anti-inflammatory effects in spinal cord and attenuates neuropathic pain following sciatic nerve injury. Mol Pain 2018; 14:1744806918767549. [PMID: 29592782 PMCID: PMC5881959 DOI: 10.1177/1744806918767549] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Resveratrol has been showed to relieve neuropathic pain through its anti-inflammatory effects on the peripheral nerve system. However, it is not clear whether resveratrol, especially when administered systemically, is effective in alleviating the peripheral neuropathy-induced imbalance between pro- and anti-inflammatory responses in the central nervous system. To test this, we used a rat neuropathic pain model resulting from chronic constriction injury of the sciatic nerve. Resveratrol (200 mg/kg) or vehicle (dimethylsulfoxide) were administered intraperitoneally once daily for 14 consecutive days after chronic constriction injury. We found that resveratrol attenuated mechanical allodynia and thermal hyperalgesia in rats with chronic constriction injury. After 14 days of resveratrol treatment, expression of several anti-inflammatory cytokine receptors, including IL-1RA and IL-1R2, was increased in the dorsal spinal cord of rats with chronic constriction injury, and IL-4Rα was increased in dorsal spinal cord neurons. Knockdown of IL-4Rα in a neuronal cell line reversed the resveratrol-induced upregulation of IL-1RA and IL-1R2. These results indicate that resveratrol enhances IL-4 receptor-mediated anti-inflammatory responses in the spinal cord and thus might contribute to the alleviation of central sensitization following peripheral nerve injury.
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Affiliation(s)
- Mu Xu
- 1 Department of Anesthesiology, Xiangya Hospital of Central South University, China
| | - Zhigang Cheng
- 1 Department of Anesthesiology, Xiangya Hospital of Central South University, China
| | - Zhuofeng Ding
- 1 Department of Anesthesiology, Xiangya Hospital of Central South University, China
| | - Yunjiao Wang
- 1 Department of Anesthesiology, Xiangya Hospital of Central South University, China
| | - Qulian Guo
- 1 Department of Anesthesiology, Xiangya Hospital of Central South University, China
| | - Changsheng Huang
- 1 Department of Anesthesiology, Xiangya Hospital of Central South University, China
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15
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Singh AK, Vinayak M. Activation of ERK signalling by Src family kinases (SFKs) in DRG neurons contributes to hydrogen peroxide (H2O2)-induced thermal hyperalgesia. Free Radic Res 2017; 51:838-850. [DOI: 10.1080/10715762.2017.1382691] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ajeet Kumar Singh
- Biochemistry & Molecular Biology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Manjula Vinayak
- Biochemistry & Molecular Biology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
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Analgesic Effect of Moxibustion with Different Temperature on Inflammatory and Neuropathic Pain Mice: A Comparative Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:4373182. [PMID: 29234396 PMCID: PMC5654268 DOI: 10.1155/2017/4373182] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 05/01/2017] [Accepted: 08/21/2017] [Indexed: 01/31/2023]
Abstract
The aim of this study was to determine whether variation of temperature during moxibustion would generate division of analgesic effect. The moxibustion with different temperatures (37°C, 42°C, 47°C, and 52°C) was applied to ST36 acupoint for 30 minutes in chronic inflammatory or neuropathic pain mice. The analgesic effect was evaluated by thermal hyperalgesia test in chronic inflammatory pain and by mechanical allodynia in neuropathic pain, respectively. The results indicated that interventions of moxibustion with different temperature caused different analgesic effect on either chronic inflammatory induced by injection of complete Freund's adjuvant (CFA) or neuropathic pain induced by spared nerve injury (SNI). In chronic inflammatory pain, different moxibustion temperature generated different intensity of analgesic effect: the higher the better. In chronic neuropathic pain, stronger analgesic effect was found in moxibustion with temperature 47°C or 52°C other than 37°C and 42°C. However, there is no significant difference displayed between moxibustion temperatures 47°C and 52°C or 37°C and 42°C. It implies that the temperature should be taken into account for moxibustion treatment to chronic inflammatory or neuropathic pain.
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Singh AK, Vinayak M. Resveratrol alleviates inflammatory hyperalgesia by modulation of reactive oxygen species (ROS), antioxidant enzymes and ERK activation. Inflamm Res 2017. [DOI: 10.1007/s00011-017-1072-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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18
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Spindola HM, Grando R, Figueiredo MC, Basting R, Queiroz NCA, de Fátima Â, de Carvalho JE, Wang ZJ, Foglio MA. Derivatives of furanditerpenes from Pterodon genus: Pharmacological studies disclose their potential as chronic pain relief in mice. Eur J Pharmacol 2017; 804:68-77. [PMID: 28322839 DOI: 10.1016/j.ejphar.2017.03.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/15/2017] [Accepted: 03/15/2017] [Indexed: 02/07/2023]
Abstract
Pterodon genus fruits are commercially available at the Brazilian medicinal market used in folk medicine due to their anti-inflammatory, analgesic, and anti-rheumatic effects. Previous studies demonstrated that furanditerpenes possessing vouacapan skeleton, isolated from Pterodon genus, possess expressive antinociceptive activities, with promising moiety for the development of new analgesic products. The antinociceptive properties of compounds 6α,7β-6α-hidroxivouacapan-7β-17β-lactone (HVL) and 6α-oxovouacapan-7β-17β-lactone (OVL), semi-synthetic analogues of furanditerpenes previously reported as analgesic agents were evaluated on animal experimental models (Spindola et al., 2010, 2011). The chemical-induced pain methods used in the present work, demonstrated for the first time that both compounds HVL and OVL have potential as important templates for the development of chronic pain control drugs. The main findings of this work were that both compounds were: effective in the writhing test; reduced paw edema in the carrageenan test; effective in the inflammatory phase of the formalin test corroborating their activity against inflammatory pain conditions; effective on reducing pain through the stimulation of vanilloid receptors sensible to capsaicin (an important pathway for chronic pain maintenance); reduced the pain stimulus caused by PGE2 injection (a pathway involved in chronic pain hypersensitivity); effective on decreasing mechanical allodynia in the CFA-model, demonstrating their potential use against chronic pain disorders.
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Affiliation(s)
- Humberto M Spindola
- CPQBA, University of Campinas, P.O. Box 6171, 13083-970 Campinas, SP, Brazil; UIC, University of Illinois at Chicago, 3320 MBRB, MC 865 Chicago, IL, USA
| | - Rogério Grando
- CPQBA, University of Campinas, P.O. Box 6171, 13083-970 Campinas, SP, Brazil
| | | | - Rosana Basting
- CPQBA, University of Campinas, P.O. Box 6171, 13083-970 Campinas, SP, Brazil
| | - N C A Queiroz
- CPQBA, University of Campinas, P.O. Box 6171, 13083-970 Campinas, SP, Brazil
| | - Ângelo de Fátima
- GEQOB, ICEx, Federal University of Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - João E de Carvalho
- CPQBA, University of Campinas, P.O. Box 6171, 13083-970 Campinas, SP, Brazil; FCF, University of Campinas, P.O. Box 6029, 13083-859 Campinas, SP, Brazil
| | - Zaijie J Wang
- UIC, University of Illinois at Chicago, 3320 MBRB, MC 865 Chicago, IL, USA
| | - M A Foglio
- CPQBA, University of Campinas, P.O. Box 6171, 13083-970 Campinas, SP, Brazil; FCF, University of Campinas, P.O. Box 6029, 13083-859 Campinas, SP, Brazil.
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