1
|
Abstract
Over the last decade, sigma-1 receptor (Sig1R) has been recognized as a valid target for the treatment of seizure disorders and seizure-related comorbidities. Clinical trials with Sig1R ligands are underway testing therapies for the treatment of drug-resistant seizures, developmental and epileptic encephalopathies, and photosensitive epilepsy. However, the direct molecular mechanism by which Sig1R modulates seizures and the balance between excitatory and inhibitory pathways has not been fully elucidated. This review article aims to summarize existing knowledge of Sig1R and its involvement in seizures by focusing on the evidence obtained from Sig1R knockout animals and the anti-seizure effects of Sig1R ligands. In addition, this review article includes a discussion of the advantages and disadvantages of the use of existing compounds and describes the challenges and future perspectives on the use of Sig1R as a target for the treatment of seizure disorders.
Collapse
Affiliation(s)
- Edijs Vavers
- Latvian Institute of Organic Synthesis, Laboratory of Pharmaceutical Pharmacology, Aizkraukles 21, LV-1006, Riga, Latvia; University of Tartu, Faculty of Science and Technology, Institute of Chemistry, Ravila 14a, 50411, Tartu, Estonia.
| | - Liga Zvejniece
- Latvian Institute of Organic Synthesis, Laboratory of Pharmaceutical Pharmacology, Aizkraukles 21, LV-1006, Riga, Latvia
| | - Maija Dambrova
- Latvian Institute of Organic Synthesis, Laboratory of Pharmaceutical Pharmacology, Aizkraukles 21, LV-1006, Riga, Latvia; Riga Stradiņš University, Faculty of Pharmacy, Konsula 21, LV-1007, Riga, Latvia
| |
Collapse
|
2
|
Yuan M, Na X, Liu J, Zhang Y, Wei Y, Ma G. Preparation, characterization and in vivo efficacy evaluation of ropivacaine O/W emulsion by premix membrane emulsification. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
3
|
Liu ES, Chen NC, Jao TM, Chen CL. Dextromethorphan Reduces Oxidative Stress and Inhibits Uremic Artery Calcification. Int J Mol Sci 2021; 22:12277. [PMID: 34830159 DOI: 10.3390/ijms222212277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/30/2021] [Accepted: 11/09/2021] [Indexed: 12/29/2022] Open
Abstract
Medial vascular calcification has emerged as a key factor contributing to cardiovascular mortality in patients with chronic kidney disease (CKD). Vascular smooth muscle cells (VSMCs) with osteogenic transdifferentiation play a role in vascular calcification. Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitors reduce reactive oxygen species (ROS) production and calcified-medium-induced calcification of VSMCs. This study investigates the effects of dextromethorphan (DXM), an NADPH oxidase inhibitor, on vascular calcification. We used in vitro and in vivo studies to evaluate the effect of DXM on artery changes in the presence of hyperphosphatemia. The anti-vascular calcification effect of DXM was tested in adenine-fed Wistar rats. High-phosphate medium induced ROS production and calcification of VSMCs. DXM significantly attenuated the increase in ROS production, the decrease in ATP, and mitochondria membrane potential during the calcified-medium-induced VSMC calcification process (p < 0.05). The protective effect of DXM in calcified-medium-induced VSMC calcification was not further increased by NADPH oxidase inhibitors, indicating that NADPH oxidase mediates the effect of DXM. Furthermore, DXM decreased aortic calcification in Wistar rats with CKD. Our results suggest that treatment with DXM can attenuate vascular oxidative stress and ameliorate vascular calcification.
Collapse
|
4
|
Li YY, Chiu CC, Wang JJ, Chen YW, Hung CH. Dopamine enhancement of dextrorphan-induced skin antinociception in response to needle pinpricks in rats. Pharmacol Rep 2019; 71:732-737. [PMID: 31207435 DOI: 10.1016/j.pharep.2019.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/08/2019] [Accepted: 04/08/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dextrorphan with long-acting local anesthetic effects did not cause system toxicity as fast as bupivacaine, while catecholamines (i.e., epinephrine) with the vasoconstrictive characteristics enhanced the effects of local anesthetic drugs. The objective of the experiment was to examine the synergistic effect of local dopamine (a catecholamine) injection on cutaneous antinociception of dextrorphan. METHODS The panniculus reflex in response to skin stimulation with a needle was used as the primary endpoint when dextrorphan (1.50, 2.61, 5.46, 10.20 and 20.40 μmol) alone, dopamine (16.20, 32.40, 51.60, 60.00 and 81.60 μmol) alone, or dopamine + dextrorphan (a ratio of ED50vs. ED50) was injected subcutaneously on the rat's back. We used an isobolographic modelling approach to determine whether a synergistic effect would be observed. RESULTS We showed that dextrorphan, dopamine, or the mixture of dopamine and dextrorphan produced dose-related skin antinociception. The potency (ED50, 50% effective dose) for cutaneous antinociception was dextrorphan [6.02 (5.93-6.14) μmol] greater than dopamine [48.91 (48.80-49.06) μmol] (p < 0.01). The duration of nociceptive inhibition induced by dopamine was longer than that induced by dextrorphan (p < 0.01) based on their equipotent doses (ED25, ED50, and ED75). Enhancement and prolongation of skin antinociception occurred after co-administration of dopamine with dextrorphan. CONCLUSIONS When compared to dopamine, dextrorphan was more potent and had a shorter duration of skin nociceptive block. Dopamine produced a synergistic effect on dextrorphan-mediated antinociception, and prolonged dextrorphan's antinociceptive duration.
Collapse
Affiliation(s)
- Yu-Yu Li
- Department of Anesthesiology, Chi-Mei Medical Center (Chiali branch), Tainan, Taiwan
| | - Chong-Chi Chiu
- Department of General Surgery, Chi-Mei Medical Center, Tainan and Liouying, Taiwan; Department of Electrical Engineering, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - Jhi-Joung Wang
- Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan; Allied AI Biomed Center, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - Yu-Wen Chen
- Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan; Department of Physical Therapy, College of Health Care, China Medical University, Taichung, Taiwan
| | - Ching-Hsia Hung
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| |
Collapse
|
5
|
Khanal M, Gohil SV, Kuyinu E, Kan HM, Knight BE, Baumbauer KM, Lo KWH, Walker J, Laurencin CT, Nair LS. Injectable nanocomposite analgesic delivery system for musculoskeletal pain management. Acta Biomater 2018; 74:280-290. [PMID: 29803784 PMCID: PMC6020057 DOI: 10.1016/j.actbio.2018.05.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 05/17/2018] [Accepted: 05/23/2018] [Indexed: 01/04/2023]
Abstract
Musculoskeletal pain is a major health issue which results from surgical procedures (i.e. total knee and/or hip replacements and rotator cuff repairs), as well as from non-surgical conditions (i.e. sympathetically-mediated pain syndrome and occipital neuralgia). Local anesthetics, opioids or corticosteroids are currently used for the pain management of musculoskeletal conditions. Even though local anesthetics are highly preferred, the need for multiple administration presents significant disadvantages. Development of unique delivery systems that can deliver local anesthetics at the injection site for prolonged time could significantly enhance the therapeutic efficacy and patient comfort. The goal of the present study is to evaluate the efficacy of an injectable local anesthetic nanocomposite carrier to provide sustained analgesic effect. The nanocomposite carrier was developed by encapsulating ropivacaine, a local anesthetic, in lipid nanocapsules (LNC-Rop), and incorporating the nanocapsules in enzymatically crosslinked glycol chitosan (0.3GC) hydrogels. Cryo Scanning Electron Microscopic (Cryo SEM) images showed the ability to distribute the LNCs within the hydrogel without adversely affecting their morphology. The study demonstrated the feasibility to achieve sustained release of lipophilic molecules from the nanocomposite carrier in vitro and in vivo. A rat chronic constriction injury (CCI) pain model was used to evaluate the efficacy of the nanocomposite carrier using thermal paw withdrawal latency (TWL). The nanocomposite carriers loaded with ropivacaine and dexamethasone showed significant improvement in pain response compared to the control groups for at least 7 days. The study demonstrated the clinical potential of these nanocomposite carriers for post-operative and neuropathic pain. STATEMENT OF SIGNIFICANCE Acute or chronic pain associated with musculoskeletal conditions is considered a major health issue, with healthcare costs totaling several billion dollars. The opioid crisis presents a pressing clinical need to develop alternative and effective approaches to treat musculoskeletal pain. The goal of this study was to develop a long-acting injectable anesthetic formulation which can sustain a local anesthetic effect for a prolonged time. This in turn could increase the quality of life and rehabilitation outcome of patients, and decrease opioid consumption. The developed injectable nanocomposite demonstrated the feasibility to achieve prolonged pain relief in a rat chronic constriction injury (CCI) model.
Collapse
Affiliation(s)
- Manakamana Khanal
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Shalini V Gohil
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Emmanuel Kuyinu
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Ho-Man Kan
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Brittany E Knight
- Department of Neuroscience, University of Connecticut Health Center, Farmington, USA
| | - Kyle M Baumbauer
- The Center for Advancement in Managing Pain, School of Nursing, University of Connecticut, Storrs, USA; Department of Neuroscience, University of Connecticut Health Center, Farmington, USA
| | - Kevin W-H Lo
- Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA; Department of Medicine, University of Connecticut Health Center, Farmington, USA; Department of Endocrinology, University of Connecticut Health Center, Farmington, USA
| | - Joseph Walker
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA
| | - Cato T Laurencin
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA; Department of Biomedical Engineering, University of Connecticut, Storrs, USA; Department of Material Science and Engineering, Institute of Material Science, University of Connecticut, Storrs, USA; Department of Reconstructive Sciences, University of Connecticut Health Center, Farmington, USA
| | - Lakshmi S Nair
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA; Department of Biomedical Engineering, University of Connecticut, Storrs, USA; Department of Material Science and Engineering, Institute of Material Science, University of Connecticut, Storrs, USA.
| |
Collapse
|
6
|
Fu X, Zeng H, Guo J, Liu H, Shi Z, Chen H, Li D, Xie X, Kuang C. A PLGA–PEG–PLGA Thermosensitive Gel Enabling Sustained Delivery of Ropivacaine Hydrochloride for Postoperative Pain Relief. Chem Pharm Bull (Tokyo) 2017; 65:229-235. [DOI: 10.1248/cpb.c16-00471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xudong Fu
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Huilin Zeng
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Jiaping Guo
- Department of Maxillofacial Surgery, Wuhan General Hospital of Chinese PLA
| | - Hong Liu
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Zhen Shi
- Department of Anesthesiology, Wuhan General Hospital of Chinese PLA
| | - Huhai Chen
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Dezong Li
- Department of Medical Experiment, Wuhan General Hospital of Chinese PLA
| | - Xiangyang Xie
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Changchun Kuang
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| |
Collapse
|
7
|
Beiranvand S, Eatemadi A, Karimi A. New Updates Pertaining to Drug Delivery of Local Anesthetics in Particular Bupivacaine Using Lipid Nanoparticles. Nanoscale Res Lett 2016; 11:307. [PMID: 27342601 PMCID: PMC4920745 DOI: 10.1186/s11671-016-1520-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 06/07/2016] [Indexed: 05/29/2023]
Abstract
Lipid nanoparticles (liposomes) were first described in 1965, and several work have led to development of important technical advances like triggered release liposomes and drug-loaded liposomes. These advances have led to numerous clinical trials in such diverse areas such as the delivery of anti-cancer, antifungal, and antibiotic drugs; the delivery of gene medicines; and most importantly the delivery of anesthesia drugs. Quite a number of liposomes are on the market, and many more are still in developmental stage. Lipid nanoparticles are the first nano-medicine delivery system to be advanced from laboratory concept to clinical application with high considerable clinical acceptance. Drug delivery systems for local anesthetics (LAs) have caught the interest of many researchers because there are many biomedical advantages connected to their application. There have been several formulation techniques to systemically deliver LA that include encapsulation in liposomes and complexation in cyclodextrins, nanoparticles, and to a little extent gold nanoparticles. The proposed formulations help to decrease the LA concentration utilized, increase its permeability, and most importantly increase the localization of the LA for a long period of time thereby leading to increase in the duration of the LA effect and finally to reduce any local and systemic toxicity. In this review, we will highlight on new updates pertaining to drug delivery of local anesthetics in particular bupivacaine using lipid nanoparticles.
Collapse
Affiliation(s)
- Siavash Beiranvand
- Department of Anesthesiology, Lorestan University of Medical Sciences, Khoramabad, Iran
| | - Ali Eatemadi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Karimi
- Department of Anesthesiology, Lorestan University of Medical Sciences, Khoramabad, Iran.
| |
Collapse
|
8
|
Wu B, Chen K, Liu K, Chen Y, Hung C, Wang J. Clonidine intensifies memantine cutaneous analgesia in response to local skin noxious pinprick in the rat. Pharmacol Rep 2015; 67:485-9. [DOI: 10.1016/j.pharep.2014.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/21/2014] [Accepted: 12/03/2014] [Indexed: 10/24/2022]
|
9
|
Chen Y, Tzeng J, Pan H, Hung C, Chen Y, Wang J. Co-administration of memantine with epinephrine produces a marked peripheral action in intensifying and prolonging analgesia in response to local skin pinprick in rats. Neurosci Lett 2014; 574:59-63. [DOI: 10.1016/j.neulet.2014.05.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 04/11/2014] [Accepted: 05/14/2014] [Indexed: 11/18/2022]
|
10
|
Foley PL, Ulery BD, Kan HM, Burks MV, Cui Z, Wu Q, Nair LS, Laurencin CT. A chitosan thermogel for delivery of ropivacaine in regional musculoskeletal anesthesia. Biomaterials 2013; 34:2539-46. [DOI: 10.1016/j.biomaterials.2012.12.035] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 12/29/2012] [Indexed: 10/27/2022]
|
11
|
Hung CH, Chu CC, Chen YC, Chen YW, Wang JJ. Rimantadine and 2-adamantanamine elicit local anesthesia to cutaneous nociceptive stimuli in a rat model. Fundam Clin Pharmacol 2012; 28:199-204. [DOI: 10.1111/fcp.12012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 10/05/2012] [Accepted: 10/11/2012] [Indexed: 11/28/2022]
Affiliation(s)
- Ching-Hsia Hung
- Institute & Department of Physical Therapy; National Cheng Kung University; No.1 Ta-Hsueh Road Tainan 701 Taiwan
| | - Chin-Chen Chu
- Department of Anesthesiology; Chi Mei Medical Center; No. 901 Chung-Hwa Road Tainan 73442 Taiwan
- Department of Recreation and Health-Care Management; Chia Nan University of Pharmacy and Science; No.60, Sec. 1, Erren Road Tainan 71710 Taiwan
| | - Yu-Chung Chen
- Division of Physical Therapy; Department of Physical Medicine and Rehabilitation; Cheng Hsin General Hospital; No.45 Cheng Hsin Street Taipei 112 Taiwan
| | - Yu-Wen Chen
- Department of Medical Research; Chi Mei Medical Center; No. 901 Chung-Hwa Road Tainan 73442 Taiwan
- Department of Physical Therapy; China Medical University; No.91 Hsueh-Shih Road Taichung 40402 Taiwan
| | - Jhi-Joung Wang
- Department of Medical Research; Chi Mei Medical Center; No. 901 Chung-Hwa Road Tainan 73442 Taiwan
| |
Collapse
|
12
|
Chen YW, Shieh JP, Chen YC, Leung YM, Hung CH, Wang JJ. Cutaneous analgesia after subcutaneous injection of memantine and amantadine and their systemic toxicity in rats. Eur J Pharmacol 2012; 693:25-30. [DOI: 10.1016/j.ejphar.2012.07.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 07/09/2012] [Accepted: 07/26/2012] [Indexed: 12/01/2022]
|
13
|
Wu TC, Chao CY, Lin SJ, Chen JW. Low-dose dextromethorphan, a NADPH oxidase inhibitor, reduces blood pressure and enhances vascular protection in experimental hypertension. PLoS One 2012; 7:e46067. [PMID: 23049937 PMCID: PMC3457948 DOI: 10.1371/journal.pone.0046067] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 08/28/2012] [Indexed: 01/10/2023] Open
Abstract
Background Vascular oxidative stress may be increased with age and aggravate endothelial dysfunction and vascular injury in hypertension. This study aimed to investigate the effects of dextromethorphan (DM), a NADPH oxidase inhibitor, either alone or in combination treatment, on blood pressure (BP) and vascular protection in aged spontaneous hypertensive rats (SHRs). Methodology/Principal Findings Eighteen-week-old WKY rats and SHRs were housed for 2 weeks. SHRs were randomly assigned to one of the 12 groups: untreated; DM monotherapy with 1, 5 or 25 mg/kg/day; amlodipine (AM, a calcium channel blocker) monotherapy with 1 or 5 mg/kg/day; and combination therapy of DM 1, 5 or 25 mg/kg/day with AM 1 or 5 mg/kg/day individually for 4 weeks. The in vitro effects of DM were also examined. In SHRs, AM monotherapy dose-dependently reduced arterial systolic BP. DM in various doses significantly and similarly reduced arterial systolic BP. Combination of DM with AM gave additive effects on BP reduction. DM, either alone or in combination with AM, improved aortic endothelial function indicated by ex vivo acetylcholine-induced relaxation. The combination of low-dose DM with AM gave most significant inhibition on aortic wall thickness in SHRs. Plasma total antioxidant status was significantly increased by all the therapies except for the combination of high-dose DM with high-dose AM. Serum nitrite and nitrate level was significantly reduced by AM but not by DM or the combination of DM with AM. Furthermore, in vitro treatment with DM reduced angiotensin II-induced reactive oxygen species and NADPH oxidase activation in human aortic endothelial cells. Conclusions/Significance Treatment of DM reduced BP and enhanced vascular protection probably by inhibiting vascular NADPH oxidase in aged hypertensive animals with or without AM treatment. It provides the potential rationale to a novel combination treatment with low-dose DM and AM in clinical hypertension.
Collapse
Affiliation(s)
- Tao-Cheng Wu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chih-Yu Chao
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Shing-Jong Lin
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Jaw-Wen Chen
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan, ROC
- Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan, ROC
- * E-mail:
| |
Collapse
|
14
|
Chen YW, Chu CC, Chen YC, Hung CH, Wang JJ. Propranolol elicits cutaneous analgesia against skin nociceptive stimuli in rats. Neurosci Lett 2012; 524:129-32. [DOI: 10.1016/j.neulet.2012.07.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 07/06/2012] [Accepted: 07/19/2012] [Indexed: 10/28/2022]
|
15
|
Chen YW, Chu CC, Chen YC, Wang JJ, Hung CH, Shao DZ. Nisoxetine produces local but not systemic analgesia against cutaneous nociceptive stimuli in the rat. Eur J Pharmacol 2012; 675:22-5. [DOI: 10.1016/j.ejphar.2011.11.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 11/16/2011] [Accepted: 11/27/2011] [Indexed: 10/14/2022]
|
16
|
Hung C, Chu C, Chen Y, Liu K, Chen Y, Wang J. Cutaneous Analgesia and Systemic Toxicity of Carbetapentane and Caramiphen in Rats: . Reg Anesth Pain Med 2012; 37:34-9. [DOI: 10.1097/aap.0b013e318237f6ab] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
17
|
Hung CH, Chu CC, Chen YC, Chen YW, Hong HJ, Wang JJ. Isoflurane for spinal anesthesia in the rat. Neurosci Lett 2011; 501:138-42. [PMID: 21782005 DOI: 10.1016/j.neulet.2011.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Revised: 06/16/2011] [Accepted: 07/06/2011] [Indexed: 11/27/2022]
Abstract
Although isoflurane, a non-water soluble agent, has been known to block Na+ currents, its spinal anesthetic effect was not exposed. The aim of this experiment was to evaluate the local anesthetic effect of isoflurane in spinal anesthesia. After intrathecal injection of isoflurane on rats, the spinal anesthetic effect in motor function, proprioception and nociception were evaluated. Lidocaine, a common used local anesthetic, was used as control. Isoflurane acted like lidocaine and produced dose-related spinal blockades of motor function, proprioception and nociception. Although isoflurane [27.6 (25.4-30.0)] had less potency when compared with lidocaine [1.0 (0.9-1.1)] (P<0.001) in spinal anesthesia, it caused a much longer duration of spinal blockades than lidocaine at equianesthetic doses (P<0.001). Our results showed that when compared with lidocaine, isoflurane produced a less potency but much longer duration in spinal anesthesia.
Collapse
Affiliation(s)
- Ching-Hsia Hung
- Institute & Department of Physical Therapy, National Cheng Kung University, Tainan, Taiwan
| | | | | | | | | | | |
Collapse
|
18
|
Chen YW, Chu CC, Chen YC, Hung CH, Hsueh MI, Wang JJ. Clonidine as adjuvant for oxybuprocaine, bupivacaine or dextrorphan has a significant peripheral action in intensifying and prolonging analgesia in response to local dorsal cutaneous noxious pinprick in rats. Neurosci Lett 2011; 496:186-90. [DOI: 10.1016/j.neulet.2011.04.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 04/07/2011] [Accepted: 04/10/2011] [Indexed: 11/30/2022]
|
19
|
Ip VH, Tsui BC. Novelty without toxicity: a quest for a safer local anesthetic. Can J Anaesth 2011; 58:8-13. [PMID: 21042902 DOI: 10.1007/s12630-010-9409-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Accepted: 10/14/2010] [Indexed: 09/29/2022] Open
|