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Duan D, Wang L, Feng Y, Hu D, Cui D. Picroside Ⅱ attenuates neuropathic pain by regulating inflammation and spinal excitatory synaptic transmission. Can J Physiol Pharmacol 2024; 102:281-292. [PMID: 37976472 DOI: 10.1139/cjpp-2023-0171] [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] [Indexed: 11/19/2023]
Abstract
Nerve injury induced microglia activation, which released inflammatory mediators and developed neuropathic pain. Picroside Ⅱ (PⅡ) attenuated neuropathic pain by inhibiting the neuroinflammation of the spinal dorsal horn; however, how it engaged in the cross talk between microglia and neurons remained ambiguous. This study aimed to investigate PⅡ in the modulation of spinal synaptic transmission mechanisms on pain hypersensitivity in neuropathic rats. We investigated the analgesia of PⅡ in mechanical and thermal hyperalgesia using the spinal nerve ligation (SNL)-induced neuropathic pain model and formalin-induced tonic pain model, respectively. RNA sequencing and network pharmacology were employed to screen core targets and signaling pathways. Immunofluorescence staining and qPCR were performed to explore the expression level of microglia and inflammatory mediator mRNA. The whole-cell patch-clamp recordings were utilized to record miniature excitatory postsynaptic currents in excitatory synaptic transmission. Our results demonstrated that the analgesic of PⅡ was significant in both pain models, and the underlying mechanism may involve inflammatory signaling pathways. PⅡ reversed the SNL-induced overexpression of microglia and inflammatory factors. Moreover, PⅡ dose dependently inhibited excessive glutamate transmission. Thus, this study suggested that PⅡ attenuated neuropathic pain by inhibiting excitatory glutamate transmission of spinal synapses, induced by an inflammatory response on microglia.
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Affiliation(s)
- Dongxia Duan
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai 201108, China
| | - Lian Wang
- School of Medicine, Tongji University, Shanghai 200092, China
- Department of Gynecology and Obstetrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yueyang Feng
- School of Design, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Daiyu Hu
- School of Medicine, Tongji University, Shanghai 200092, China
| | - Donghong Cui
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai 201108, China
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Synthesis of substituted dihydro-1H-pyrazoles and 1H-pyrazoles via formal [4+1] annulation of α-arylhydrazonoketones and dimethyl sulfonium methylides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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3
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Yao Q, Liao Y, Lin L, Lin X, Ji J, Liu X, Feng X. Efficient Synthesis of Chiral Trisubstituted 1,2-Allenyl Ketones by Catalytic Asymmetric Conjugate Addition of Malonic Esters to Enynes. Angew Chem Int Ed Engl 2015; 55:1859-63. [PMID: 26694204 PMCID: PMC4738401 DOI: 10.1002/anie.201509455] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/10/2015] [Indexed: 11/11/2022]
Abstract
An N,N'-dioxide/scandium(III) complex catalyzed, highly efficient conjugate addition of malonic esters to enynes is described. A range of trisubstituted 1,2-allenyl ketones were obtained in high yields (up to 99 %) with good d.r. (up to 95/5) and excellent ee values (97 %-99 %). Moreover, the products could be easily transformed into chiral furan and 5-hydroxypyrazoline derivatives, both of which are important skeletons of many biologically active compounds and pharmacologicals.
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Affiliation(s)
- Qian Yao
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Yuting Liao
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Lili Lin
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaobin Lin
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Jie Ji
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China. .,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin), China.
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4
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Yao Q, Liao Y, Lin L, Lin X, Ji J, Liu X, Feng X. Efficient Synthesis of Chiral Trisubstituted 1,2-Allenyl Ketones by Catalytic Asymmetric Conjugate Addition of Malonic Esters to Enynes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509455] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qian Yao
- Key Laboratory of Green Chemistry and Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Yuting Liao
- Key Laboratory of Green Chemistry and Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Lili Lin
- Key Laboratory of Green Chemistry and Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xiaobin Lin
- Key Laboratory of Green Chemistry and Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Jie Ji
- Key Laboratory of Green Chemistry and Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry and Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry and Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin) China
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Florentino IF, Galdino PM, De Oliveira LP, Silva DPB, Pazini F, Vanderlinde FA, Lião LM, Menegatti R, Costa EA. Involvement of the NO/cGMP/KATP pathway in the antinociceptive effect of the new pyrazole 5-(1-(3-fluorophenyl)-1H-pyrazol-4-yl)-2H-tetrazole (LQFM-021). Nitric Oxide 2015; 47:17-24. [PMID: 25754796 DOI: 10.1016/j.niox.2015.02.146] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 02/26/2015] [Indexed: 11/15/2022]
Abstract
The pyrazol compounds are known to possess antipyretic, analgesic and anti-inflammatory activities. This study was conducted to investigate the peripheral antinociceptive effect of the pyrazole compound 5-(1-(3-Fluorophenyl)-1H-pyrazol-4-yl)-2H-tetrazole (LQFM-021) and involvement of opioid receptors and of the NO/cGMP/K(ATP) pathway. The oral treatments in mice with LQFM-021 (17, 75 or 300 mg/kg) decreased the number of writhing. In the formalin test, the treatments with LQFM-021 at doses of 15, 30 and 60 mg/kg reduced the licking time at both neurogenic and inflammatory phases of this test. The treatment of the animals with LQFM-021 (30 mg/kg) did not have antinociceptive effects in the tail-flick and hot plate tests. Furthermore, pre-treatment with naloxone (3 mg/kg i.p.), L-name (10 mg/kg i.p.), ODQ (10 mg/kg i.p.) or glibenclamide (3 mg/kg i.p.) antagonized the antinociceptive effect of LQFM-021 in both phases of the formalin test. In addition, it was also demonstrated that the treatments of mice with LQFM-021(15, 30 and 60 mg/kg) did not compromise the motor activity of the animals in the chimney test. Only the highest dose used in the antinociceptive study promoted changes in the open field test and pentobarbital-induced sleep test, thus ruling out possible false positive effects on nociception tests. Our data suggest that the peripheral antinociception effects of the LQFM-021 were mediated through the peripheral opioid receptors with activation of the NO/cGMP/KATP pathway.
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Affiliation(s)
- Iziara F Florentino
- Institute of Biological Sciences, Department of Pharmacology, Federal University of Goiás, Campus Samambaia, Goiânia, GO, Brazil.
| | - Pablinny M Galdino
- Institute of Biological Sciences, Department of Pharmacology, Federal University of Goiás, Campus Samambaia, Goiânia, GO, Brazil
| | - Lanussy P De Oliveira
- Institute of Biological Sciences, Department of Pharmacology, Federal University of Goiás, Campus Samambaia, Goiânia, GO, Brazil
| | - Daiany P B Silva
- Institute of Biological Sciences, Department of Pharmacology, Federal University of Goiás, Campus Samambaia, Goiânia, GO, Brazil
| | - Francine Pazini
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goiás, Goiânia, GO, Brazil
| | - Frederico A Vanderlinde
- Institute of Biological Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil
| | - Luciano M Lião
- Chemistry Institute, Federal University of Goias, Campus Samambaia, Goiânia, GO, Brazil
| | - Ricardo Menegatti
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goiás, Goiânia, GO, Brazil
| | - Elson A Costa
- Institute of Biological Sciences, Department of Pharmacology, Federal University of Goiás, Campus Samambaia, Goiânia, GO, Brazil
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Selvam TP, Kumar PV, Saravanan G, Prakash CR. Microwave-assisted synthesis, characterization and biological activity of novel pyrazole derivatives. JOURNAL OF SAUDI CHEMICAL SOCIETY 2014. [DOI: 10.1016/j.jscs.2011.12.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Oliveira SM, Silva CR, Wentz AP, Paim GR, Correa MS, Bonacorso HG, Prudente AS, Otuki MF, Ferreira J. Antinociceptive effect of 3-(4-fluorophenyl)-5-trifluoromethyl-1H-1-tosylpyrazole. A Celecoxib structural analog in models of pathological pain. Pharmacol Biochem Behav 2014; 124:396-404. [DOI: 10.1016/j.pbb.2014.07.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 06/11/2014] [Accepted: 07/06/2014] [Indexed: 01/27/2023]
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Trevisan G, Rossato MF, Walker CIB, Oliveira SM, Rosa F, Tonello R, Silva CR, Machado P, Boligon AA, Martins MAP, Zanatta N, Bonacorso HG, Athayde ML, Rubin MA, Calixto JB, Ferreira J. A novel, potent, oral active and safe antinociceptive pyrazole targeting kappa opioid receptors. Neuropharmacology 2013; 73:261-73. [PMID: 23791558 DOI: 10.1016/j.neuropharm.2013.06.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 05/28/2013] [Accepted: 06/06/2013] [Indexed: 11/26/2022]
Abstract
Pyrazole compounds are an intriguing class of compounds with potential analgesic activity; however, their mechanism of action remains unknown. Thus, the goal of this study was to explore the antinociceptive potential, safety and mechanism of action of novel 1-pyrazole methyl ester derivatives, which were designed by molecular simplification, using in vivo and in vitro methods in mice. First, tree 1-pyrazole methyl ester derivatives (DMPE, MPFE, and MPCIE) were tested in the capsaicin test and all presented antinociceptive effect; however the MPClE (methyl 5-trichloromethyl-3-methyl-1H-pyrazole-1-carboxylate) was the most effective. Thus, we selected this compound to assess the effects and mechanisms in subsequent pain models. MPCIE produced antinociception when administered by oral, intraperitoneal, intrathecal and intraplantar routes and was effective in the capsaicin and the acetic acid-induced nociception tests. Moreover, this compound reduced the hyperalgesia in diverse clinically-relevant pain models, including postoperative, inflammatory, and neuropathic nociception in mice. The antinociception produced by orally administered MPClE was mediated by κ-opioid receptors, since these effects were prevented by systemically pre-treatment with naloxone and the κ-opioid receptor antagonist nor-binaltorphimine. Moreover, MPCIE prevented binding of the κ-opioid ligand [(3)H]-CI-977 in vitro (IC₅₀ of 0.68 (0.32-1.4) μM), but not the TRPV1 ([(3)H]-resiniferatoxin) or the α₂-adrenoreceptor ([(3)H]-idazoxan) binding. Regarding the drug-induced side effects, oral administration of MPClE did not produce sedation, constipation or motor impairment at its active dose. In addition, MPCIE was readily absorbed after oral administration. Taken together, these results demonstrate that MPClE is a novel, potent, orally active and safe analgesic drug that targets κ-opioid receptors.
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Affiliation(s)
- Gabriela Trevisan
- Graduate Program in Biological Sciences - Toxicological Biochemistry, Department of Chemistry, Federal University of Santa Maria, 97105-900 Santa Maria, RS, Brazil
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Highly regioselective and practical synthesis of 1-acyl-5-hydroxypyrazolines and 1-acyl pyrazoles from 1,2-allenic ketones and hydrazides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.046] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Pasin J, Ferreira A, Saraiva A, Ratzlaff V, Andrighetto R, Machado P, Marchesan S, Zanette R, Bonacorso H, Zanatta N, Martins M, Ferreira J, Mello C. Antipyretic and antioxidant activities of 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles in rats. Braz J Med Biol Res 2010; 43:1193-202. [DOI: 10.1590/s0100-879x2010007500139] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Accepted: 11/16/2010] [Indexed: 12/21/2022] Open
Affiliation(s)
- J.S.M. Pasin
- Universidade Federal do Rio Grande do Sul, Brasil; Centro Universitário Franciscano, Brasil
| | | | | | | | | | - P. Machado
- Universidade Federal de Santa Maria, Brasil
| | | | | | | | - N. Zanatta
- Universidade Federal de Santa Maria, Brasil
| | | | | | - C.F. Mello
- Universidade Federal do Rio Grande do Sul, Brasil; Universidade Federal de Santa Maria
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Bonacorso HG, Cechinel CA, Paim GR, Martins MAP, Zanatta N, Flores AFC. New succinyl-spaced pyrazoles: Regioselective synthesis of 1,4-bis[5-(trichloromethyl)-1H-pyrazol-1-yl]butane-1,4-diones. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Martins MAP, Peres RL, Frizzo CP, Scapin E, Moreira DN, Fiss GF, Zanatta N, Bonacorso HG. Solvent-free route to β-enamino dichloromethyl ketones and application in the synthesis of novel 5-dichloromethyl-1H-pyrazoles. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.227] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Figueiredo JG, da Silveira Bitencourt F, Beserra IG, Teixeira CS, Luz PB, Bezerra EHS, Mota MRL, Assreuy AMS, de Queiroz Cunha F, Cavada BS, de Alencar NMN. Antinociceptive activity and toxicology of the lectin from Canavalia boliviana seeds in mice. Naunyn Schmiedebergs Arch Pharmacol 2009; 380:407-14. [DOI: 10.1007/s00210-009-0448-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Accepted: 08/07/2009] [Indexed: 10/20/2022]
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Werner JAT, Oliveira SM, Martins DF, Mazzardo L, Dias JDFG, Lordello ALL, Miguel OG, Royes LF, Ferreira J, Santos ARS. Evidence for a role of 5-HT(1A) receptor on antinociceptive action from Geissospermum vellosii. JOURNAL OF ETHNOPHARMACOLOGY 2009; 125:163-169. [PMID: 19497357 DOI: 10.1016/j.jep.2009.05.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2008] [Revised: 05/08/2009] [Accepted: 05/24/2009] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Geissospermum vellosii is a tree widely found throughout the Amazonic forest and frequently used by the native population for painful disorders. AIM OF THE STUDY The present study examined the antinociceptive effects of Geissospermum vellosii in behavioral models of nociception. MATERIALS, METHODS AND RESULTS Oral administration of crude extract of Geissospermum vellosii or its dichloromethane fraction (1-100 mg/kg) inhibited formalin-induced inflammatory nociception and acetic acid-induced visceral nociception. The antinociceptive effect of Geissospermum vellosii was unrelated with motor dysfunctions. Furthermore, the alkaloid 12-metoxy-1-methyl-aspidospermidine (0.001-1 mg/kg), isolated from the dichloromethane fraction, also produced antinociception. The antinociception caused by the dichloromethane fraction was significantly attenuated by pre-treatment of mice with p-chlorophenylalanine methyl ester (PCPA, an inhibitor of serotonin synthesis, 100 mg/kg once a day for 4 consecutive days) and WAY-100635 (a 5-HT(1A) receptor antagonist, 0.3 mg/kg). In contrast, dichloromethane fraction antinociception was not affected by pre-treatment of animals with ketanserin (a 5-HT(2) receptor antagonist, 0.3 mg/kg) or ondansetron (a 5-HT(3) receptor antagonist, 0.5 mg/kg). CONCLUSIONS Together, these results indicate that Geissospermum vellosii produces antinociception through an interaction with 5-HT(1A) receptors. Furthermore, the alkaloid 12-metoxy-1-methyl-aspidospermidine contributes to the antinociceptive properties reported for Geissospermum vellosii.
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Affiliation(s)
- Juliana A T Werner
- Programa de Pós-graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, Brazil
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Karthikeyan K, Veenus Seelan T, Lalitha K, Perumal P. Synthesis and antinociceptive activity of pyrazolyl isoxazolines and pyrazolyl isoxazoles. Bioorg Med Chem Lett 2009; 19:3370-3. [DOI: 10.1016/j.bmcl.2009.05.055] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2009] [Revised: 05/12/2009] [Accepted: 05/14/2009] [Indexed: 10/20/2022]
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Sauzem PD, Sant'Anna GDS, Machado P, Duarte MMMF, Ferreira J, Mello CF, Beck P, Bonacorso HG, Zanatta N, Martins MAP, Rubin MA. Effect of 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles on chronic inflammatory pain model in rats. Eur J Pharmacol 2009; 616:91-100. [PMID: 19540223 DOI: 10.1016/j.ejphar.2009.06.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2008] [Revised: 05/27/2009] [Accepted: 06/08/2009] [Indexed: 11/30/2022]
Abstract
Nonsteroidal antiinflammatory drugs (NSAIDs) are commonly used for treatment of arthritis. However, their long-term use has been associated with considerable morbidity, limiting their application. Thus, there remains a need to develop new drugs for the effective and safe relief of chronic inflammatory pain. In this context, the present study was designed to evaluate the antinociceptive and antiedematogenic effects of the 5-trifluoromethyl-4,5-dihydro-1H-pyrazole derivatives EPFCA3 and MPFCA4 after acute (1-1000 micromol/kg) and chronic (100 micromol/kg for 15 days) administration in rats submitted to a model of adjuvant-induced arthritis. We also analyzed some biochemical indicators of toxicity (alanine aminotransferase, aspartate aminotransferase, urea and creatinine levels) after prolonged administration of these compounds. We found that acute and chronic subcutaneuous administration of EPFCA3 and MPFCA4 produces an antinociceptive, but not antiedematogenic, effect on the arthritis animal model induced by complete Freund's adjuvant (CFA). No signs of toxicity were observed in the animals chronically treated with EPFCA3 or MPFCA4. Dipyrone (1-1000 micromol/kg) was used as the positive control and its effect was similar to that of the novel pyrazoles. The activity of tissue myeloperoxidase, the tissue TNF-alpha level and the serum haptoglobin level was increased by intraplantar CFA injection. However, chronic administration of EPFCA3, MPFCA4 or dipyrone was not able to alter the relation between these parameters and inflammation. Our results suggest that EPFCA3 and MPFCA4 are good candidates for the development of new drugs for pain treatment.
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Affiliation(s)
- Patricia D Sauzem
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Oliveira SM, Gewehr C, Dalmolin GD, Cechinel CA, Wentz A, Lourega RV, Sehnem RC, Zanatta N, Martins MAP, Rubin MA, Bonacorso HG, Ferreira J. Antinociceptive Effect of a Novel Tosylpyrazole Compound in Mice. Basic Clin Pharmacol Toxicol 2009; 104:122-9. [DOI: 10.1111/j.1742-7843.2008.00353.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Antinociceptive action of 4-methyl-5-trifluoromethyl-5-hydroxy-4, 5-dihydro-1H-pyrazole methyl ester in models of inflammatory pain in mice. Life Sci 2008; 83:739-46. [DOI: 10.1016/j.lfs.2008.09.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Revised: 09/13/2008] [Accepted: 09/17/2008] [Indexed: 01/06/2023]
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19
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Waldo JP, Mehta S, Larock RC. Room temperature ICl-induced dehydration/iodination of 1-acyl-5-hydroxy-4,5-dihydro-1H-pyrazoles. a selective route to substituted 1-acyl-4-iodo-1H-pyrazoles. J Org Chem 2008; 73:6666-70. [PMID: 18665643 DOI: 10.1021/jo800789p] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A number of new functionally substituted 1-acyl-5-hydroxy-4,5-dihydro-1H-pyrazoles have been prepared in moderate to excellent yields from the corresponding 2-alkyn-1-ones. The resulting dihydropyrazoles undergo dehydration and iodination in the presence of ICl and Li2CO3 at room temperature to provide 1-acyl-4-iodo-1H-pyrazoles.
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Affiliation(s)
- Jesse P Waldo
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
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Sauzem PD, Machado P, Rubin MA, da S Sant'anna G, Faber HB, de Souza AH, Mello CF, Beck P, Burrow RA, Bonacorso HG, Zanatta N, Martins MAP. Design and microwave-assisted synthesis of 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles: Novel agents with analgesic and anti-inflammatory properties. Eur J Med Chem 2008; 43:1237-47. [PMID: 17889969 DOI: 10.1016/j.ejmech.2007.07.018] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Revised: 07/12/2007] [Accepted: 07/20/2007] [Indexed: 10/22/2022]
Abstract
In this work, we reported the synthesis and evaluation of the analgesic and anti-inflammatory properties of novel 3- or 4-substituted 5-trifluoromethyl-5-hydroxy-4,5-dihydro-1H-1-carboxyamidepyrazoles (where 3-/4-substituent=H/H, Me/H, Et/H, Pr/H, i-Pr/H, Bu/H, t-Bu/H, Ph/H, 4-Br-Ph/H and H/Me) designed in the exploration of the bioisosteric replacement of benzene present in salicylamide with a 5-trifluoromethyl-4,5-dihydro-1H-pyrazole scaffold. Target compounds were synthesized from the cyclocondensation of 4-alkoxy-1,1,1-trifluoromethyl-3-alken-2-ones with semicarbazide hydrochloride through a rapid one-pot reaction via microwave irradiation. In addition to spectroscopic data, the structure of the compounds was supported by X-ray diffraction. Subcutaneous administration of the 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles decreased pain-related behavior during neurogenic and inflammatory phases of the formalin test in mice. Moreover, the more active analgesic compounds (3-/4-=Et/H and H/Me) significantly decreased carrageenan-induced paw edema in mice. The data obtained in this work suggest that the synthesized compounds could be promising candidates for the future development of novel analgesic and anti-inflammatory agents.
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Affiliation(s)
- Patricia D Sauzem
- Laboratório de Neurotoxicidade e Psicofarmacologia, Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
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Milano J, Oliveira SM, Rossato MF, Sauzem PD, Machado P, Beck P, Zanatta N, Martins MAP, Mello CF, Rubin MA, Ferreira J, Bonacorso HG. Antinociceptive effect of novel trihalomethyl-substituted pyrazoline methyl esters in formalin and hot-plate tests in mice. Eur J Pharmacol 2007; 581:86-96. [PMID: 18190906 DOI: 10.1016/j.ejphar.2007.11.042] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2007] [Revised: 11/10/2007] [Accepted: 11/21/2007] [Indexed: 11/30/2022]
Abstract
The aim of the present study was to evaluate the antinociceptive potential of four novel pyrazoline methyl ester compounds on chemical and thermal models of pain in mice. The following 5-trihalomethylated-4,5-dihydro-1H-pyrazole methyl ester compounds were tested: 3-methyl-5-trifluoromethyl-(MPF3), 4-methyl-5-trifluoromethyl-(MPF4), 3-methyl-5-trichloromethyl-(MPCl3) and 4-methyl-5-trichloromethyl-(MPCl4). MPF3, MPF4, MPCl3 and MPCl4 (0.03-1.0 mmol/kg) given intraperitoneally decreased neurogenic and inflammatory phases of nociception in the formalin test. Moreover, MPF3, MPF4, MPCl3, MPCl4 (0.1-1.0 mmol/kg) and dipyrone (1.5 mmol/kg) also produced a dose-dependent antinociceptive effect in the hot-plate test. However, MPF3, MPF4, MPCl3 and MPCl4 did not impair motor coordination in the rotarod test or spontaneous locomotion in the open field test. The antinociceptive effect of MPF4 (1.0 mmol/kg, i.p.) was reversed by the opioid receptor antagonist naloxone (2 mg/kg, i.p.), but not by the alpha(2)-adrenergic receptor antagonist yohimbine (0.15 mg/kg, i.p.) or by p-chlorophenylalanine ethyl ester (PCPA, 300 mg/kg, i.p.) treatment. In contrast to morphine (5 mg/kg, i.p.), MPF4 given daily for up to 8 days did not generate a tolerance to its antinociceptive effect. However, similar to morphine (11 mg/kg, i.p.), MPF4 reduced gastrointestinal transit in mice. Taken together these results demonstrate that these novel pyrazoline methyl esters tested may be promising prototypes of additional mild analgesics.
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Affiliation(s)
- Julie Milano
- Laboratório de Neurotoxicidade e Psicofarmacologia, Departamento de Química, Centro de Ciências Naturais e Exatas, Brazil
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Martins MA, Guarda EA, Frizzo CP, Scapin E, Beck P, da Costa AC, Zanatta N, Bonacorso HG. Synthesis of 1,1,1-trichloro[fluoro]-3-alken-2-ones using ionic liquids. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.10.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bonacorso HG, Wentz AP, Lourega RV, Cechinel CA, Moraes TS, Flores AFC, Zanatta N, Martins MAP. Regiospecific synthesis of trichloromethyl substituted 4,5-dihydro-1h-1-tosylpyrazoles. J Heterocycl Chem 2007. [DOI: 10.1002/jhet.5570440139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bonacorso HG, Wentz AP, Lourega RV, Cechinel CA, Moraes TS, Coelho HS, Zanatta N, Martins MA, Höerner M, Alves SH. Trifluoromethyl-containing pyrazolinyl (p-tolyl) sulfones: The synthesis and structure of promising antimicrobial agents. J Fluor Chem 2006. [DOI: 10.1016/j.jfluchem.2006.05.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Prokopp CR, Rubin MA, Sauzem PD, de Souza AH, Berlese DB, Lourega RV, Muniz MN, Bonacorso HG, Zanatta N, Martins MAP, Mello CF. A pyrazolyl-thiazole derivative causes antinociception in mice. Braz J Med Biol Res 2006; 39:795-9. [PMID: 16751986 DOI: 10.1590/s0100-879x2006000600013] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study investigates the antinociceptive effect of the pyrazolyl-thiazole derivative 2-(5-trichloromethyl-5-hydroxy-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-4-(4-bromophenyl)-5-methylthiazole (B50) in mice. Male albino Swiss mice (30-40 g) were used in the acetic acid-induced abdominal writhes and tail-immersion tests. B50 caused dose-dependent antinociception (8, 23 and 80 micromol/kg, s.c.) in the acetic acid writhing assay (number of writhes: vehicle: 27.69 +/- 6.15; B50 (8 micromol/kg): 16.92 +/- 3.84; B50 (23 micromol/kg): 13.85 +/- 3.84; B50 (80 micromol/kg): 9.54 +/- 3.08; data are reported as means +/- SEM for 9 animals per group). On the other hand, B50 did not cause antinociception in the tail immersion assay. Naloxone (2.75 micromol/kg, s.c.) prevented B50-induced antinociception (number of writhes: vehicle-saline: 31.11 +/- 3.15; vehicle-naloxone: 27.41 +/- 3.70; B50 (80 micromol/kg)-saline: 8.70 +/- 3.33; B50 (80 micromol/kg)-naloxone: 31.84 +/- 4.26; morphine-saline: 2.04 +/- 3.52; morphine-naloxone: 21.11 +/- 4.26; 8-9 animals per group). The removal of the methyl group of the thiazole ring of B50 or substitution of the bromo substituent with the methyl at position 4 of the phenyl group, which is attached to the thiazole ring of B50, resulted in loss of activity, suggesting that these substituents are important for antinociceptive activity. B50 had no effect on spontaneous locomotion or rotarod performance, indicating that the antinociceptive effect of B50 is not related to nonspecific motor effects. The antinociceptive profile of B50 seems to be closer to nonsteroidal anti-inflammatory drugs than to classic opioid agents, since it had no analgesic effect in a thermally motivated test.
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Affiliation(s)
- C R Prokopp
- Laboratório de Neurotoxicidade e Psicofarmacologia, Departamento de Química, Setor de Bioquímica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, RS, Brasil
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A convenient two-step synthesis of 6-methylenesubstituted-4-trichloromethyl-2-methylsulfanyl pyrimidines. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.11.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bonacorso HG, Oliveira MR, Costa MB, Drekener RL, Silva LBD, Zanatta N, Martins MAP. One-pot synthesis of aryl and heteroaroyl-substituted hydroxypyrazolines from the reactions of β-alkoxyvinyl trichloromethyl ketones with heteroarylhydrazides. HETEROATOM CHEMISTRY 2006. [DOI: 10.1002/hc.20261] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bonacorso HG, Cechinel CA, Oliveira MR, Costa MB, Martins MAP, Zanatta N, Flores AFC. An efficient and regiospecific preparation of trifluoromethyl substituted 4-( 1H-pyrazol-1 -yl)-7-chloroquinolines. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420604] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Godoy MCM, Fighera MR, Souza FR, Flores AE, Rubin MA, Oliveira MR, Zanatta N, Martins MAP, Bonacorso HG, Mello CF. Alpha 2-adrenoceptors and 5-HT receptors mediate the antinociceptive effect of new pyrazolines, but not of dipyrone. Eur J Pharmacol 2005; 496:93-7. [PMID: 15288580 DOI: 10.1016/j.ejphar.2004.05.045] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2004] [Indexed: 11/24/2022]
Abstract
In this study, we investigated whether spinal noradrenergic and serotonergic systems are involved in the antinociception induced by the novel pyrazolines 3-methyl- and 3-phenyl-5-hydroxy-5-trichloromethyl-4,5-dihydro-1H-1-pyrazole-1-carboxyamide (MPCA and PPCA, respectively), and the pyrazolinone dipyrone in the acetic acid writhing (stretching) test in mice. Intrathecal (i.t.) administration of methysergide (3 and 10 microg) and yohimbine (3 microg), but not of prazosin (0.3 and 1 microg) prevented the antinociceptive action of MPCA and PPCA (500 micromol/kg, s.c.). Dipyrone-induced antinociception (500 micromol/kg, s.c.) was not affected by methysergide or adrenoceptor antagonists. These results suggest that spinal 5-HT receptors and alpha2-adrenoceptors are involved in the antinociception induced by MPCA and PPCA, but not in that elicited by dipyrone.
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Affiliation(s)
- Maria Celoni M Godoy
- Laboratório de Psicofarmacologia Neurotoxicidade, Departamento de Fisiologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
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Bonacorso HG, Muniz MN, Wastowski AD, Zanatta N, Martins MAP. Efficient synthesis and dehydration reaction of trichloromethylated 2-(3-phenyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-yl)-4-aryl-5-alkylthiazoles. HETEROATOM CHEMISTRY 2003. [DOI: 10.1002/hc.10113] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Souza FR, Souza VT, Ratzlaff V, Borges LP, Oliveira MR, Bonacorso HG, Zanatta N, Martins MAP, Mello CF. Hypothermic and antipyretic effects of 3-methyl- and 3-phenyl-5-hydroxy-5-trichloromethyl-4,5-dihydro-1H-pyrazole-1-carboxyamides in mice. Eur J Pharmacol 2002; 451:141-7. [PMID: 12231383 DOI: 10.1016/s0014-2999(02)02225-2] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The effect of novel pyrazolines, 3-methyl-5-hydroxy-5-trichloromethyl-4,5-dihydro-1H-pyrazole-1-carboxyamide (MPCA) and 3-phenyl-5-hydroxy-5-trichloromethyl-4,5-dihydro-1H-pyrazole-1-carboxyamide (PPCA) on body temperature and endotoxin-induced fever was investigated in mice. The subcutaneous (s.c.) administration of 1.5 mmol/kg dipyrone, MPCA or PPCA and the intracerebroventricular (i.c.v.) administration of 225 nmol dipyrone reduced basal rectal temperature. Intracerebroventricular administration of 225 nmol MPCA or PPCA did not alter basal rectal temperature. The administration of 0.15 mmol/kg (s.c.) or 25 nmol (5 microl) dipyrone (i.c.v.), MPCA or PPCA had no effect on basal rectal temperature, but reversed lipopolysaccharide-induced fever. These results suggest that MPCA and PPCA cause antipyresis, which is similar to that caused by dipyrone, and may be useful antipyretic agents.
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Affiliation(s)
- Fabiane R Souza
- Laboratório de Neurotoxicidade, Departamento de Química, Centro de Ciências Naturais e Exatas, Campus Universitário-Camobi, Universidade Federal de Santa Maria, Santa Maria, 97105-900, RS, Brazil
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