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Silva JDN, Beserra Filho JIA, Acha BT, Almeida FRDC, Batista EKF, Silva VR, Bomfim LM, Soares MBP, Bezerra DP, dos Santos AG, de Andrade FDCP, Mendes AN, Arcanjo DDR, Ferreira PMP. Promising Effects of Casearins in Tumor-Bearing Mice and Antinociceptive Action against Oncologic Pain: Molecular Docking and In Vivo Findings. Pharmaceuticals (Basel) 2024; 17:633. [PMID: 38794204 PMCID: PMC11124378 DOI: 10.3390/ph17050633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Safer analgesic drugs remain a hard challenge because of cardiovascular and/or gastrointestinal toxicity, mainly. So, this study evaluated in vivo the antiproliferative actions of a fraction with casearins (FC) from Casearia sylvestris leaves against human colorectal carcinomas and antihyperalgesic effects on inflammatory- or opiate-based pain relief and oncologic pain in Sarcoma 180 (S180)-bearing mice. Moreover, docking investigations evaluated the binding among Casearin X and NMDA(N-methyl-D-aspartate)-type glutamate receptors. HCT-116 colorectal carcinoma-xenografted mice were treated with FC for 15 days. Antinociceptive assays included chemically induced algesia and investigated mechanisms by pharmacological blockade. Intraplantar region S180-bearing animals received a single dose of FC and were examined for mechanical allodynia and behavior alterations. AutoDock Vina determined molecular interactions among Cas X and NMDA receptor subunits. FC reduced tumor growth at i.p. (5 and 10 mg/kg) and oral (25 mg/kg/day) doses (31.12-39.27%). FC reduced abdominal pain, as confirmed by formalin and glutamate protocols, whose antinociception activity was blocked by naloxone and L-NAME (neurogenic phase) and naloxone, atropine, and flumazenil (inflammatory phase). Meanwhile, glibenclamide potentiated the FC analgesic effects. FC increased the paw withdrawal threshold without producing changes in exploratory parameters or motor coordination. Cas X generated a more stable complex with active sites of the NMDA receptor GluN2B subunits. FC is a promising antitumor agent against colorectal carcinomas, has peripheral analgesic effects by desensitizing secondary afferent neurons, and inhibits glutamate release from presynaptic neurons and/or their action on cognate receptors. These findings emphasize the use of clerodane diterpenes against cancer-related pain conditions.
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Affiliation(s)
- Jurandy do Nascimento Silva
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, Brazil; (J.d.N.S.); (J.I.A.B.F.)
- Department of Chemistry, Federal University of Piauí, Teresina 64049-550, Brazil
| | - José Ivo Araújo Beserra Filho
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, Brazil; (J.d.N.S.); (J.I.A.B.F.)
| | - Boris Timah Acha
- Laboratory of Functional and Molecular Studies in Physiopharmacology (Lafmol), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, Brazil;
- Laboratory of Pain Pharmacology, Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina 64049-550, Brazil;
| | - Fernanda Regina de Castro Almeida
- Laboratory of Pain Pharmacology, Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina 64049-550, Brazil;
| | | | - Valdenizia Rodrigues Silva
- Laboratory of Tissue Engineering and Immunopharmacology, Oswaldo Cruz Foundation, Salvador 40296-710, Brazil; (V.R.S.); (L.M.B.); (M.B.P.S.); (D.P.B.)
| | - Larissa Mendes Bomfim
- Laboratory of Tissue Engineering and Immunopharmacology, Oswaldo Cruz Foundation, Salvador 40296-710, Brazil; (V.R.S.); (L.M.B.); (M.B.P.S.); (D.P.B.)
| | - Milena Botelho Pereira Soares
- Laboratory of Tissue Engineering and Immunopharmacology, Oswaldo Cruz Foundation, Salvador 40296-710, Brazil; (V.R.S.); (L.M.B.); (M.B.P.S.); (D.P.B.)
| | - Daniel Pereira Bezerra
- Laboratory of Tissue Engineering and Immunopharmacology, Oswaldo Cruz Foundation, Salvador 40296-710, Brazil; (V.R.S.); (L.M.B.); (M.B.P.S.); (D.P.B.)
| | - André Gonzaga dos Santos
- Laboratory of Pharmacognosy, Faculty of Pharmaceutical Sciences, State University Júlio de Mesquita Filho, Araraquara 14800-700, Brazil;
| | - Francisco das Chagas Pereira de Andrade
- Laboratory of Innovation in Science and Technology (Lacitec), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, Brazil; (F.d.C.P.d.A.); (A.N.M.)
| | - Anderson Nogueira Mendes
- Laboratory of Innovation in Science and Technology (Lacitec), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, Brazil; (F.d.C.P.d.A.); (A.N.M.)
| | - Daniel Dias Rufino Arcanjo
- Laboratory of Functional and Molecular Studies in Physiopharmacology (Lafmol), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, Brazil;
| | - Paulo Michel Pinheiro Ferreira
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, Brazil; (J.d.N.S.); (J.I.A.B.F.)
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2
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Izumi Y, Hsu FF, Conway CR, Nagele P, Mennerick SJ, Zorumski CF. Nitrous Oxide, a Rapid Antidepressant, Has Ketamine-like Effects on Excitatory Transmission in the Adult Hippocampus. Biol Psychiatry 2022; 92:964-972. [PMID: 36050137 PMCID: PMC10107749 DOI: 10.1016/j.biopsych.2022.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/03/2022] [Accepted: 06/14/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Nitrous oxide (N2O) is a noncompetitive inhibitor of NMDA receptors that appears to have ketamine-like rapid antidepressant effects in patients with treatment-resistant major depression. In preclinical studies, ketamine enhances glutamate-mediated synaptic transmission in the hippocampus and prefrontal cortex. In this study, we examined the effects of N2O on glutamate transmission in the hippocampus and compared its effects to those of ketamine. METHODS Glutamate-mediated synaptic transmission was studied in the CA1 region of hippocampal slices from adult albino rats using standard extracellular recording methods. Effects of N2O and ketamine at subanesthetic concentrations were evaluated by acute administration. RESULTS Akin to 1 μM ketamine, 30% N2O administered for 15-20 minutes resulted in persistent enhancement of synaptic responses mediated by both AMPA receptors and NMDA receptors. Synaptic enhancement by both N2O and ketamine was blocked by co-administration of a competitive NMDA receptor antagonist at saturating concentration, but only ketamine was blocked by an AMPA receptor antagonist. Synaptic enhancement by both agents involved TrkB (tropomyosin receptor kinase B), mTOR (mechanistic target of rapamycin), and NOS (nitric oxide synthase) with some differences between N2O and ketamine. N2O potentiation occluded enhancement by ketamine, and in vivo N2O exposure occluded further potentiation by both N2O and ketamine. CONCLUSIONS These results indicate that N2O has ketamine-like effects on hippocampal synaptic function at a subanesthetic, but therapeutically relevant concentration. These 2 rapid antidepressants have similar, but not identical mechanisms that result in persisting synaptic enhancement, possibly contributing to psychotropic actions.
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Affiliation(s)
- Yukitoshi Izumi
- Department of Psychiatry and Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, Missouri; Center for Brain Research in Mood Disorders, Washington University School of Medicine, St. Louis, Missouri
| | - Fong-Fu Hsu
- Department of Medicine and Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, St. Louis, Missouri
| | - Charles R Conway
- Department of Psychiatry and Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, Missouri; Center for Brain Research in Mood Disorders, Washington University School of Medicine, St. Louis, Missouri
| | - Peter Nagele
- Department of Anesthesia and Critical Care, University of Chicago, Chicago, Illinois
| | - Steven J Mennerick
- Department of Psychiatry and Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, Missouri; Center for Brain Research in Mood Disorders, Washington University School of Medicine, St. Louis, Missouri
| | - Charles F Zorumski
- Department of Psychiatry and Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, Missouri; Center for Brain Research in Mood Disorders, Washington University School of Medicine, St. Louis, Missouri.
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3
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Matthies M, Rosenstand K, Nissen I, Muitjens S, Riber LP, De Mey JGR, Bloksgaard M. Nitric oxide (NO) synthase but not NO, HNO or H 2 O 2 mediates endothelium-dependent relaxation of resistance arteries from patients with cardiovascular disease. Br J Pharmacol 2021; 179:1049-1064. [PMID: 34664280 DOI: 10.1111/bph.15712] [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: 02/11/2021] [Revised: 09/10/2021] [Accepted: 09/12/2021] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Superoxide anions can reduce the bioavailability and actions of endothelium-derived NO. In human resistance-sized arteries, endothelium-dependent vasodilatation can be mediated by H2 O2 instead of NO. Here, we tested the hypothesis that in resistance arteries from patients with cardiovascular disease, endothelium-dependent vasodilatation is mediated by a reactive oxygen species and not impaired by oxidative stress. EXPERIMENTAL APPROACH Small arteries were isolated from biopsies of the parietal pericardium of patients undergoing elective cardiothoracic surgery and were studied using immunohistochemical and organ chamber techniques. KEY RESULTS NO synthases 1, 2 and 3, superoxide dismutase 1 and catalase proteins were observed in the microvascular wall. Relaxing responses to bradykinin were endothelium dependent. During submaximal depolarization-induced contraction, bradykinin-mediated relaxations were inhibited by inhibitors of NO synthases (NOS) and soluble guanylyl cyclase (sGC) but not by scavengers of NO or HNO, inhibitors of cyclooxygenases, neuronal NO synthase, superoxide dismutase or catalase, or by exogenous catalase. During contraction stimulated by endothelin-1, these relaxations were not reduced by any of these interventions except DETCA, which caused a small reduction. CONCLUSION AND IMPLICATIONS In resistance arteries from patients with cardiovascular disease, endothelium-dependent relaxations seem not to be mediated by NO, HNO or H2 O2 , although NOS and sGC can be involved. These vasodilator responses continue during excessive oxidative stress.
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Affiliation(s)
- Maximilian Matthies
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | | | - Inger Nissen
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Stan Muitjens
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Lars P Riber
- Department of Cardiac, Thoracic and Vascular Surgery, Odense University Hospital, Odense, Denmark
| | - Jo G R De Mey
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,Department of Pharmacology and Personalized Medicine, Maastricht University, Maastricht, The Netherlands
| | - Maria Bloksgaard
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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4
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Teixeira FC, Antunes IF, Curto MJM, Duarte MT, André V, Teixeira APS. New C‐3 Substituted 1
H
‐ and 2
H
‐Indazolephosphonic Acid Regioisomers: Synthesis, Spectroscopic Characterization and X‐Ray Diffraction Studies. ChemistrySelect 2021. [DOI: 10.1002/slct.202102538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fátima C. Teixeira
- Laboratório Nacional de Energia e Geologia, I.P. Estrada do Paço do Lumiar, 22 1649-038 Lisboa Portugal
| | - Inês F. Antunes
- Laboratório Nacional de Energia e Geologia, I.P. Estrada do Paço do Lumiar, 22 1649-038 Lisboa Portugal
| | - M. João M. Curto
- Laboratório Nacional de Energia e Geologia, I.P. Estrada do Paço do Lumiar, 22 1649-038 Lisboa Portugal
| | - M. Teresa Duarte
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Vânia André
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
- Associação do Instituto Superior Técnico para a Investigação e Desenvolvimento (IST-ID) Av. Rovisco Pais 1049-003 Lisboa Portugal
| | - António P. S. Teixeira
- Departamento de Ciências Médicas e da Saúde, Escola de Saúde e Desenvolvimento Humano & LAQV- REQUIMTE, IIFA Universidade de Évora R. Romão Ramalho, 59 7000-671 Évora Portugal
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5
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Fang W, Wang X, Cai M, Liu X, Wang X, Lu W. Targeting GluN2B/NO Pathway Ameliorates Social Isolation-Induced Exacerbated Attack Behavior in Mice. Front Pharmacol 2021; 12:700003. [PMID: 34335265 PMCID: PMC8322622 DOI: 10.3389/fphar.2021.700003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 06/21/2021] [Indexed: 11/13/2022] Open
Abstract
Exacerbated attack behavior has a profound socioeconomic impact and devastating social consequences; however, there is no satisfactory clinical management available for an escalated attack behavior. Social isolation (SI) is widespread during this pandemic and may exert detrimental effects on mental health, such as causing heightened attack behavior. To explore the therapeutic approaches that alleviate the SI-induced heightened attack behavior, we utilized pharmacological methods targeting the GluN2B/NO signaling pathway during the attack behavior. Ifenprodil and TAT-9C peptide targeting GluN2B showed that the inhibition of GluN2B mitigated the SI-induced escalated attack behavior and the SI-induced aberrant nitric oxide (NO) level in the brain. Additionally, the potentiation of the NO level by L-arginine reversed the effects of the inhibition of GluN2B. Moreover, we showed that high doses of L-NAME and 7-NI and subeffective doses of L-NAME in combination with ifenprodil or TAT-9C or subeffective doses of 7-NI plus ifenprodil or TAT-9C all decreased the SI-induced escalated attack behavior and reduced the NO level, further supporting the idea that GluN2B/NO signaling is a crucial modulator of the escalated attack behavior.
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Affiliation(s)
- Weiqing Fang
- Department of Pharmacy, School of Medicine, Women's Hospital, Zhejiang University, Hangzhou, China
| | - Xiaorong Wang
- Department of Pharmacy, School of Medicine, Women's Hospital, Zhejiang University, Hangzhou, China
| | - Miao Cai
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, China
| | - Xinxin Liu
- Department of Clinical Medicine, Hainan Medical University, Haikou, China
| | - Xuemeng Wang
- Department of Clinical Medicine, Hainan Medical University, Haikou, China
| | - Wen Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, China.,Key Laboratory of Molecular Biology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, China
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6
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Gambouz K, Abbouchi AE, Nassiri S, Suzenet F, Bousmina M, Akssira M, Guillaumet G, El Kazzouli S. Palladium‐Catalyzed Oxidative Arylation of 1
H
‐Indazoles with Arenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Khadija Gambouz
- Laboratoire de Chimie Physique et Chimie Bioorganique URAC 22 FSTM Université Hassan II – Casablanca BP 146 28800 Mohammedia Morocco
- Institut de Chimie Organique et Analytique Université d'Orléans UMR CNRS 7311 BP 6759 Orléans cedex 2 54067 France
- Euromed Research Center Engineering School of Biomedical and Biotechnology Euromed University of Fes (UEMF) Route de Meknès 30000 Fes Morocco
| | - Abdelmoula El Abbouchi
- Institut de Chimie Organique et Analytique Université d'Orléans UMR CNRS 7311 BP 6759 Orléans cedex 2 54067 France
- Euromed Research Center Engineering School of Biomedical and Biotechnology Euromed University of Fes (UEMF) Route de Meknès 30000 Fes Morocco
| | - Sarah Nassiri
- Institut de Chimie Organique et Analytique Université d'Orléans UMR CNRS 7311 BP 6759 Orléans cedex 2 54067 France
- Euromed Research Center Engineering School of Biomedical and Biotechnology Euromed University of Fes (UEMF) Route de Meknès 30000 Fes Morocco
| | - Franck Suzenet
- Institut de Chimie Organique et Analytique Université d'Orléans UMR CNRS 7311 BP 6759 Orléans cedex 2 54067 France
| | - Mostapha Bousmina
- Euromed Research Center Engineering School of Biomedical and Biotechnology Euromed University of Fes (UEMF) Route de Meknès 30000 Fes Morocco
| | - Mohamed Akssira
- Laboratoire de Chimie Physique et Chimie Bioorganique URAC 22 FSTM Université Hassan II – Casablanca BP 146 28800 Mohammedia Morocco
| | - Gérald Guillaumet
- Institut de Chimie Organique et Analytique Université d'Orléans UMR CNRS 7311 BP 6759 Orléans cedex 2 54067 France
- Euromed Research Center Engineering School of Biomedical and Biotechnology Euromed University of Fes (UEMF) Route de Meknès 30000 Fes Morocco
| | - Saïd El Kazzouli
- Euromed Research Center Engineering School of Biomedical and Biotechnology Euromed University of Fes (UEMF) Route de Meknès 30000 Fes Morocco
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7
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Meiller A, Sequeira E, Marinesco S. Electrochemical Nitric Oxide Microsensors Based on a Fluorinated Xerogel Screening Layer for in Vivo Brain Monitoring. Anal Chem 2020; 92:1804-1810. [PMID: 31872758 DOI: 10.1021/acs.analchem.9b03621] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Nitric oxide (NO) is an important free radical synthesized and released by brain cells. At low (nanomolar) levels, it modulates synaptic transmission and neuronal activity, but at much higher levels mediates neuronal injury through oxidative stress. However, the precise concentrations at which these biological actions are exerted are still poorly defined. Electrochemical detection of NO in vivo requires rigorous exclusion of endogenous redox molecules such as ascorbate or nitrite. A fluorinated xerogel composed of trimethoxymethylsilane and heptadecafluoro-1,1,2,2-tetrahydrodecyl silane has been proposed to create a screening layer around NO sensors, protecting against such chemical interference in vitro. Here we detected NO in the living brain using carbon fiber microelectrodes covered with nickel porphyrin and this fluorinated xerogel. These microsensors were insensitive to interfering redox molecules and surpassed similar microelectrodes coated with a Nafion screening layer. In vivo, in the rat parietal cortex, these electrodes could detect brain NO released by local microinjection of the glutamatergic agonist N-methyl-d-aspartate (NMDA). NMDA-evoked NO release peaked at 1.1 μM and lasted more than 20 min. This fluorinated xerogel screening layer can therefore be applied in vivo, allowing for the fabrication of highly specific microsensors to study NO physio-pathological actions in the brain.
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Affiliation(s)
- Anne Meiller
- AniRA-Neurochem Technological Platform , Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292 , 69675 Bron cedex, France.,Université Claude Bernard Lyon 1 , 69100 Villeurbanne , France
| | - Ellora Sequeira
- AniRA-Neurochem Technological Platform , Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292 , 69675 Bron cedex, France.,Université Claude Bernard Lyon 1 , 69100 Villeurbanne , France
| | - Stéphane Marinesco
- AniRA-Neurochem Technological Platform , Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292 , 69675 Bron cedex, France.,Team TIGER , Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292 , 69675 Bron , France.,Université Claude Bernard Lyon 1 , 69100 Villeurbanne , France
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8
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Kumar G, Mukherjee S, Paliwal P, Singh SS, Birla H, Singh SP, Krishnamurthy S, Patnaik R. Neuroprotective effect of chlorogenic acid in global cerebral ischemia-reperfusion rat model. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1293-1309. [DOI: 10.1007/s00210-019-01670-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 05/22/2019] [Indexed: 12/11/2022]
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9
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Quiñonez-Bastidas GN, Pineda-Farias JB, Flores-Murrieta FJ, Rodríguez-Silverio J, Reyes-García JG, Godínez-Chaparro B, Granados-Soto V, Rocha-González HI. Antinociceptive effect of (-)-epicatechin in inflammatory and neuropathic pain in rats. Behav Pharmacol 2019; 29:270-279. [PMID: 28590304 DOI: 10.1097/fbp.0000000000000320] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The aim of this study was to investigate the antinociceptive potential of (-)-epicatechin and the possible mechanisms of action involved in its antinociceptive effect. The carrageenan and formalin tests were used as inflammatory pain models. A plethysmometer was used to measure inflammation and L5/L6 spinal nerve ligation as a neuropathic pain model. Oral (-)-epicatechin reduced carrageenan-induced inflammation and nociception by about 59 and 73%, respectively, and reduced formalin- induced and nerve injury-induced nociception by about 86 and 43%, respectively. (-)-Epicatechin-induced antinociception in the formalin test was prevented by the intraperitoneal administration of antagonists: methiothepin (5-HT1/5 receptor), WAY-100635 (5-HT1A receptor), SB-224289 (5-HT1B receptor), BRL-15572 (5-HT1D receptor), SB-699551 (5-HT5A receptor), naloxone (opioid receptor), CTAP (μ opioid receptor), nor-binaltorphimine (κ opioid receptor), and 7-benzylidenenaltrexone (δ1 opioid receptor). The effect of (-)-epicatechin was also prevented by the intraperitoneal administration of L-NAME [nitric oxide (NO) synthase inhibitor], 7-nitroindazole (neuronal NO synthase inhibitor), ODQ (guanylyl cyclase inhibitor), glibenclamide (ATP-sensitive K channel blocker), 4-aminopyridine (voltage-dependent K channel blocker), and iberiotoxin (large-conductance Ca-activated K channel blocker), but not by amiloride (acid sensing ion channel blocker). The data suggest that (-)-epicatechin exerts its antinociceptive effects by activation of the NO-cyclic GMP-K channels pathway, 5-HT1A/1B/1D/5A serotonergic receptors, and μ/κ/δ opioid receptors.
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Affiliation(s)
- Geovanna N Quiñonez-Bastidas
- Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politecnico Nacional.,Department of Biological Systems, Division of Biological Sciences and Health, UAM-Xochimilco
| | | | - Francisco J Flores-Murrieta
- Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politecnico Nacional.,Pharmacology Research Unit, INER, Ismael Cosio Villegas, Secretaria de Salud, Mexico City, Mexico
| | - Juan Rodríguez-Silverio
- Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politecnico Nacional
| | - Juan G Reyes-García
- Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politecnico Nacional
| | | | | | - Héctor I Rocha-González
- Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politecnico Nacional
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10
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Hariharan A, Jing Y, Collie ND, Zhang H, Liu P. Altered neurovascular coupling and brain arginine metabolism in endothelial nitric oxide synthase deficient mice. Nitric Oxide 2019; 87:60-72. [PMID: 30877024 DOI: 10.1016/j.niox.2019.03.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/06/2019] [Accepted: 03/10/2019] [Indexed: 12/23/2022]
Abstract
Nitric oxide (NO) produced by endothelial NO synthase (eNOS) is a key regulator of cerebral blood flow (CBF) dynamics. Mice with eNOS deficiency (eNOS-/-) display age-related increases in amyloid beta in the brain and memory deficits, implicating eNOS dysfunction in the neuropathogenesis and/or development of Alzheimer's disease (AD). The present study systematically investigated behavioural, CBF and brain arginine metabolic profile changes in male and female wildtype (WT) and eNOS-/- mice at 14 months of age. eNOS-/- mice displayed altered behaviour in the Y-maze and open field tests. A real-time microcirculation imager revealed a significant sex difference in the basal CBF and significantly increased perfusion response to whisker stimulations in the Barrel cortex in both male and female eNOS-/- mice relative to their sex-matched WT controls. The treatment of 7-nitroindazole blocked the increased perfusion response to whisker stimulations in eNOS-/- mice. Neurochemically, the most intriguing changes were markedly reduced glutamine levels in both male and female eNOS-/- mice in the frontal cortex, hippocampus, parahippocampal region and cerebellum. These findings demonstrate altered behavioural function, neurovascular coupling and brain arginine metabolism (glutamine in particular) under the condition of eNOS deficiency, which further supports the role of eNOS dysfunction in the AD neuropathogenesis.
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Affiliation(s)
- Ashwini Hariharan
- Department of Anatomy, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, Brain Research New Zealand, New Zealand
| | - Yu Jing
- Department of Anatomy, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, Brain Research New Zealand, New Zealand
| | - Nicola D Collie
- Department of Anatomy, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, Brain Research New Zealand, New Zealand
| | - Hu Zhang
- School of Pharmacy, Brain Health Research Centre, University of Otago, Brain Research New Zealand, New Zealand
| | - Ping Liu
- Department of Anatomy, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, Brain Research New Zealand, New Zealand.
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11
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Chattha FA, Kousar S, Mehr-un-Nisa, Munawar MA. Synthesis of 3-Arylindazole-1-acetic Acids and In Vitro Study of Potential Antibacterial Effect. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180815666180702152259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Indazoleacetic acids and their pharmaceutically acceptable salts have been
claimed to be useful as anti-inflammatory, analgesic and antipyretic agents. They are active in the
treatment of respiratory diseases such as asthma, bronchitis, allergies and obstructive pulmonary
diseases.
</P><P>
Objectives: We report herein a feasible study concerned about the design, synthesis, structure and in
vitro antimicrobial activity of 3-arylindazole-1-acetic acids derivatives. Series of compounds were
synthesized by alkylation of 3-arylindazoles.
Method:
Synthesized compounds were subjected to study the effect on microbial growth in vitro.
All synthesized compounds were found to exhibit antibacterial activities against a range of grampositive
(Bacillus subtilis, Staphylococcus aureus) and gram-negative bacteria (Shigella sonnei,
Escherichia coli) by broth dilution method.
Results:
The synthesized compounds exhibited antibacterial activities comparable to fluoroquinolones
and some compounds exhibited better activity. These findings suggest a great potential of
3-arylindazole-1-acetic acids as antibacterial compounds.
Conclusion:
3-Arylindazole-1-acetic acids are potent antimicrobial agent better than their respective
3-arylindazoles that revealed moderate activity against both gram positive and gram negative
bacteria.
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Affiliation(s)
| | - Samina Kousar
- Institute of Chemistry, University of Punjab, Lahore-54590, Pakistan
| | - Mehr-un-Nisa
- Department of Chemistry, University of Education, Lahore-54590, Pakistan
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12
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Kodippili K, Hakim CH, Yang HT, Pan X, Yang NN, Laughlin MH, Terjung RL, Duan D. Nitric oxide-dependent attenuation of noradrenaline-induced vasoconstriction is impaired in the canine model of Duchenne muscular dystrophy. J Physiol 2018; 596:5199-5216. [PMID: 30152022 DOI: 10.1113/jp275672] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 08/08/2018] [Indexed: 12/31/2022] Open
Abstract
KEY POINTS We developed a novel method to study sympatholysis in dogs. We showed abolishment of sarcolemmal nNOS, and reduction of total nNOS and total eNOS in the canine Duchenne muscular dystrophy (DMD) model. We showed sympatholysis in dogs involving both nNOS-derived NO-dependent and NO-independent mechanisms. We showed that the loss of sarcolemmal nNOS compromised sympatholysis in the canine DMD model. We showed that NO-independent sympatholysis was not affected in the canine DMD model. ABSTRACT The absence of dystrophin in Duchenne muscular dystrophy (DMD) leads to the delocalization of neuronal nitric oxide synthase (nNOS) from the sarcolemma. Sarcolemmal nNOS plays an important role in sympatholysis, a process of attenuating reflex sympathetic vasoconstriction during exercise to ensure blood perfusion in working muscle. Delocalization of nNOS compromises sympatholysis resulting in functional ischaemia and muscle damage in DMD patients and mouse models. Little is known about the contribution of membrane-associated nNOS to blood flow regulation in dystrophin-deficient DMD dogs. We tested the hypothesis that the loss of sarcolemmal nNOS abolishes protective sympatholysis in contracting muscle of affected dogs. Haemodynamic responses to noradrenaline in the brachial artery were evaluated at rest and during contraction in the absence and presence of NOS inhibitors. We found sympatholysis was significantly compromised in DMD dogs, as well as in normal dogs treated with a selective nNOS inhibitor, suggesting that the absence of sarcolemmal nNOS underlies defective sympatholysis in the canine DMD model. Surprisingly, inhibition of all NOS isoforms did not completely abolish sympatholysis in normal dogs, suggesting sympatholysis in canine muscle also involves NO-independent mechanism(s). Our study established a foundation for using the dog model to test therapies aimed at restoring nNOS homeostasis in DMD.
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Affiliation(s)
- Kasun Kodippili
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, USA
| | - Chady H Hakim
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, USA.,National Center for Advancing Translational Sciences (NCATS), Bethesda, MD, USA
| | - Hsiao T Yang
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, USA.,Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
| | - Xiufang Pan
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, USA
| | - N Nora Yang
- National Center for Advancing Translational Sciences (NCATS), Bethesda, MD, USA
| | - Maurice H Laughlin
- Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
| | - Ronald L Terjung
- Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
| | - Dongsheng Duan
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, USA.,Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA.,Department of Neurology, School of Medicine, University of Missouri, Columbia, MO, USA.,Department of Bioengineering, University of Missouri, Columbia, MO, USA
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13
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Role of nitric oxide synthase on brain GABA transaminase activity and GABA levels. ACTA PHARMACEUTICA 2018; 68:349-359. [PMID: 31259693 DOI: 10.2478/acph-2018-0022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/12/2018] [Indexed: 11/20/2022]
Abstract
In an attempt to clarify the controversial role of nitric oxide (NO) in seizures, the effects of NO on brain GABA transaminase (GABA-T) activity and GABA levels were investigated. To this aim, the effects of the substrate (l-arginine) and inhibitors (Nω-nitro-l-arginine methyl ester, 7-nitroindazole) of NO synthase (NOS) on GABA-T activity and GABA levels in vitro and ex vivo were analyzed. In vitro NO diminished GABA-T activity and increased GABA. Ex vivo NO modified GABA-T activity and GABA levels biphasically. Inhibition of endothelial and neuronal NOS (eNOS and nNOS) had opposite effects on GABA-T activity and GABA levels, even during seizures induced by pentylenetetrazole. Different effects of NO on GABA-T activity and on GABA levels, depending on the NOS isoform involved, may explain its contradictory role in seizures, the endothelial NOS acting as an anticonvulsant and the neuronal NOS as a proconvulsant. nNOS inhibitors may represent a new generation of antiepileptics.
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14
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Barp CG, Mendes C, Lemos-Senna E, Assreuy J. 7-nitroindazol-loaded nanoemulsions: Preparation, characterization and its improved inhibitory effect on nitric oxide synthase-1. Nitric Oxide 2018; 76:129-135. [PMID: 28943472 DOI: 10.1016/j.niox.2017.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 08/28/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
Abstract
Nitric oxide (NO) participates in several physiological processes such as maintenance of blood pressure, host defense, neurotransmission, inhibition of platelet aggregation and learning and memory. NO is also involved in several diseases or dysfunctions in the cardiovascular, central nervous and musculoskeletal systems. NO also has been shown to be a major player in sepsis. NOS-1-derived NO has been shown to be a relevant species in physiology but also is an important element in pathology. There exist some NOS-1 inhibitors and among of them, 7-nitroindazole has been used for its in vivo selectivity. However, 7-NI has a very short half-life (∼2 h) and a poor water solubility. In this study, we describe the preparation and characterization of 7-NI-loaded nanoemulsions (NE7-NI). The chemical stability of 7-NI was greatly increased and the drug release rate could be controlled after nanoemulsification. NE7-NI reduced NO production in a long-lasting manner in vascular smooth muscle cells and skeletal muscle, without cytotoxicity. Our results evidenced that nanoemulsification approach increases the effective action time of 7-NI, rendering a suitable dosage form, which may be an interesting tool to study the role of NOS-1 in physiology and disease.
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Affiliation(s)
- Clarissa Germano Barp
- Department of Pharmacology, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
| | - Cassiana Mendes
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
| | - Elenara Lemos-Senna
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
| | - Jamil Assreuy
- Department of Pharmacology, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
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15
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Talarek S, Listos J, Orzelska-Gorka J, Serefko A, Kotlińska J. NMDA Receptors and NO:cGMP Signaling Pathway Mediate the Diazepam-Induced Sensitization to Withdrawal Signs in Mice. Neurotox Res 2017; 33:422-432. [PMID: 28936791 PMCID: PMC5766724 DOI: 10.1007/s12640-017-9810-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/11/2017] [Accepted: 08/31/2017] [Indexed: 02/02/2023]
Abstract
The goal of the present study was to examine the effects of N-methyl-aspartate (NMDA) receptor antagonists-memantine and ketamine and the drugs modifying the NO:cGMP pathway-NG-nitro-L-arginine methyl ester (L-NAME) and 7-nitroindazole (7-NI), the endogenous precursor of NO-L-arginine, and the guanylyl cyclase inhibitor-methylene blue (MB) on the development of sensitization to withdrawal signs precipitated after chronic, interrupted treatment with diazepam, a benzodiazepine receptor agonist, in mice. To develop the sensitization, the mice were divided into groups: continuously and sporadically (with two diazepam-free periods) treated with diazepam (15 mg/kg, sc). To precipitate the withdrawal syndrome (clonic and tonic seizures, and death), pentylenetetrazole (55 mg/kg, sc) with the benzodiazepine receptor antagonist, flumazenil (5.0 mg/kg, ip), were administered after the last injection of diazepam or saline. Memantine (2.5, 5.0 mg/kg), and ketamine (2.5, 5.0 mg/kg), L-NAME (100, 200 mg/kg) and 7-NI (20 and 40 mg/kg), L-arginine (250, 500 mg/kg) and MB (5 and 10 mg/kg) were administered ip in sporadically diazepam-treated mice during the diazepam-free periods. Our results indicated that both NMDA receptor antagonists and drugs that inhibit the NO:cGMP pathway, except L-arginine (the endogenous donor of NO), attenuated the diazepam-induced sensitization to withdrawal signs in mice. Thus, NMDA receptors and the NO:cGMP pathway are involved in the mechanisms of sensitization to benzodiazepine withdrawal.
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Affiliation(s)
- Sylwia Talarek
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland.
| | - Joanna Listos
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
| | - Jolanta Orzelska-Gorka
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
| | - Anna Serefko
- Chair and Department of Applied Pharmacy, Medical University of Lublin, Chodźki 1, 20-093, Lublin, Poland
| | - Jolanta Kotlińska
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
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Abstract
Supplemental Digital Content is Available in the Text. Inhibition of dimethylarginine dimethylaminohydrolase 1 attenuates pain-related behavior and hyperexcitability in pain conditions associated with excessive nitric oxide production, representing a novel therapeutic target. Activation of neuronal nitric oxide synthase, and consequent production of nitric oxide (NO), contributes to spinal hyperexcitability and enhanced pain sensation. All NOS isoforms are inhibited endogenously by asymmetric dimethylarginine, which itself is metabolised by dimethylarginine dimethylaminohydrolase (DDAH). Inhibition of DDAH can indirectly attenuate NO production by elevating asymmetric dimethylarginine concentrations. Here, we show that the DDAH-1 isoform is constitutively active in the nervous system, specifically in the spinal dorsal horn. DDAH-1 was found to be expressed in sensory neurons within both the dorsal root ganglia and spinal dorsal horn; L-291 (NG–[2-Methoxyethyl]-l-arginine methyl ester), a DDAH-1 inhibitor, reduced NO synthesis in cultured dorsal root ganglia neurons. Spinal application of L-291 decreased N-methyl-d-aspartate–dependent postdischarge and windup of dorsal horn sensory neurons—2 measures of spinal hyperexcitability. Finally, spinal application of L-291 reduced both neuronal and behavioral measures of formalin-induced central sensitization. Thus, DDAH-1 may be a potential therapeutic target in neuronal disorders, such as chronic pain, where elevated NO is a contributing factor.
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Wang X, Chandrashekar K, Wang L, Lai EY, Wei J, Zhang G, Wang S, Zhang J, Juncos LA, Liu R. Inhibition of Nitric Oxide Synthase 1 Induces Salt-Sensitive Hypertension in Nitric Oxide Synthase 1α Knockout and Wild-Type Mice. Hypertension 2016; 67:792-9. [PMID: 26883268 DOI: 10.1161/hypertensionaha.115.07032] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 01/18/2016] [Indexed: 01/10/2023]
Abstract
We recently showed that α, β, and γ splice variants of neuronal nitric oxide synthase (NOS1) expressed in the macula densa and NOS1β accounts for most of the NO generation. We have also demonstrated that the mice with deletion of NOS1 specifically from the macula densa developed salt-sensitive hypertension. However, the global NOS1 knockout (NOS1KO) strain is neither hypertensive nor salt sensitive. This global NOS1KO strain is actually an NOS1αKO model. Consequently, we hypothesized that inhibition of NOS1β in NOS1αKO mice induces salt-sensitive hypertension. NOS1αKO and C57BL/6 wild-type (WT) mice were implanted with telemetry transmitters and divided into 7-nitroindazole (10 mg/kg/d)-treated and nontreated groups. All of the mice were fed a normal salt (0.4% NaCl) diet for 5 days, followed by a high-salt diet (4% NaCl). NO generation by the macula densa was inhibited by >90% in WT and NOS1αKO mice treated with 7-nitroindazole. Glomerular filtration rate in conscious mice was increased by ≈ 40% after a high-salt diet in both NOS1αKO and WT mice. In response to acute volume expansion, glomerular filtration rate, diuretic and natriuretic response were significantly blunted in the WT and knockout mice treated with 7-nitroindazole. Mean arterial pressure had no significant changes in mice fed a high-salt diet, but increased ≈ 15 mm Hg similarly in NOS1αKO and WT mice treated with 7-nitroindazole. We conclude that NOS1β, but not NOS1α, plays an important role in control of sodium excretion and hemodynamics in response to either an acute or a chronic salt loading.
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Affiliation(s)
- Ximing Wang
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Kiran Chandrashekar
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Lei Wang
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - En Yin Lai
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Jin Wei
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Gensheng Zhang
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Shaohui Wang
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Jie Zhang
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Luis A Juncos
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.)
| | - Ruisheng Liu
- From the Department of Molecular Pharmacology and Physiology, University of South Florida College of Medicine, Tampa (X.W., L.W., J.W., G.Z., S.W., J.Z., R.L.); Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Disease, Shandong University, Jinan, Shandong, China (X.W.); Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson (K.C., L.A.J.); and Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China (E.Y.L., G.Z.).
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Ghelani SM, Khunt HR, Naliapara YT. Design, Synthesis, Characterization, and Antimicrobial Screening of Novel Indazole Bearing Oxadiazole Derivatives. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Satish M. Ghelani
- Department of Chemistry; Saurashtra University; Rajkot Gujarat India
| | - Hasmukh R. Khunt
- Department of Chemistry; Saurashtra University; Rajkot Gujarat India
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The preferential nNOS inhibitor 7-nitroindazole and the non-selective one N(G)-nitro-L-arginine methyl ester administered alone or jointly with L-DOPA differentially affect motor behavior and monoamine metabolism in sham-operated and 6-OHDA-lesioned rats. Brain Res 2015; 1625:218-37. [PMID: 26319690 DOI: 10.1016/j.brainres.2015.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/06/2015] [Accepted: 08/07/2015] [Indexed: 12/21/2022]
Abstract
Reciprocal interactions between nitrergic and dopaminergic systems play a key role in the control of motor behavior. In the present study, we performed a comparative analysis of motor behavior (locomotor activity, catalepsy, rotational behavior) and monoamine metabolism in the striatum and substantia nigra of unilaterally sham-operated and 6-OHDA-lesioned rats treated with the preferential neuronal nitric oxide synthase (nNOS) inhibitor 7-nitroindazole (7-NI) or the non-selective one N(G)-nitro-L-arginine methyl ester (L-NAME), alone or in combination with L-DOPA. Each NOS inhibitor given alone (50mg/kg) induced a distinct catalepsy 30 min after injection but only 7-NI impaired spontaneous locomotion after 10 min. In 6-OHDA-lesioned rats, chronic L-DOPA (25mg/kg) induced 2.5-h long contralateral rotations. 7-NI (30 and 50mg/kg) markedly reduced the intensity of L-DOPA-induced contralateral rotations while extending their duration until 4.5h whereas L-NAME (50 and 100mg/kg) only tended to attenuate their intensity without affecting the duration. 7-NI but not L-NAME significantly increased endogenous tissue DA levels in the nigrostriatal system of both sham-operated and 6-OHDA-lesioned rats. In L-DOPA-treated group, 7-NI significantly enhanced the L-DOPA-derived tissue DA content in this system and decreased the level of the intracellular DA metabolite DOPAC produced by monoamine oxidase (MAO). In contrast to 7-NI, L-NAME decreased markedly DA content and did not affect DOPAC level in the ipsilateral striatum. It means that the differences in 7-NI and L-NAME-mediated modulation of L-DOPA-induced behavioral and biochemical effects resulted not only from the inhibition of NOS activity but also from differences in their ability to inhibit MAO.
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Nieto CI, Cabildo MP, Cornago MP, Sanz D, Claramunt RM, Torralba MC, Torres MR, Elguero J, García JA, López A, Acuña-Castroviejo D. Fluorination Effects on NOS Inhibitory Activity of Pyrazoles Related to Curcumin. Molecules 2015; 20:15643-65. [PMID: 26343623 PMCID: PMC6332466 DOI: 10.3390/molecules200915643] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 08/15/2015] [Accepted: 08/17/2015] [Indexed: 12/11/2022] Open
Abstract
A series of new (E)-3(5)-[β-(aryl)-ethenyl]-5(3)-phenyl-1H-pyrazoles bearing fluorine atoms at different positions of the aryl group have been synthesized starting from the corresponding β-diketones. All compounds have been characterized by elemental analysis, DSC as well as NMR (1H, 13C, 19F and 15N) spectroscopy in solution and in solid state. Three structures have been solved by X-ray diffraction analysis, confirming the tautomeric forms detected by solid state NMR. The in vitro study of their inhibitory potency and selectivity on the activity of nNOS and eNOS (calcium-calmodulin dependent) as well as iNOS (calcium-calmodulin independent) isoenzymes is presented. A qualitative structure–activity analysis allowed the establishment of a correlation between the presence/absence of different substituents with the inhibition data proving that fluorine groups enhance the biological activity. (E)-3(5)-[β-(3-Fluoro-4-hydroxyphenyl)-ethenyl]-5(3)-phenyl-1H-pyrazole (13), is the best inhibitor of iNOS, being also more selective towards the other two isoforms.
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Affiliation(s)
- Carla I. Nieto
- Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Paseo Senda del Rey, 9, Madrid 28040, Spain; E-Mails: (C.I.N.); (M.P.C.); (M.P.C.); (D.S.)
| | - María Pilar Cabildo
- Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Paseo Senda del Rey, 9, Madrid 28040, Spain; E-Mails: (C.I.N.); (M.P.C.); (M.P.C.); (D.S.)
| | - María Pilar Cornago
- Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Paseo Senda del Rey, 9, Madrid 28040, Spain; E-Mails: (C.I.N.); (M.P.C.); (M.P.C.); (D.S.)
| | - Dionisia Sanz
- Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Paseo Senda del Rey, 9, Madrid 28040, Spain; E-Mails: (C.I.N.); (M.P.C.); (M.P.C.); (D.S.)
| | - Rosa M. Claramunt
- Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Paseo Senda del Rey, 9, Madrid 28040, Spain; E-Mails: (C.I.N.); (M.P.C.); (M.P.C.); (D.S.)
- Authors to whom correspondence should be addressed; E-Mails: (R.M.C.); (M.C.T.); (D.A.C.); Tel.: +34-91-398-73-22 (R.M.C.); Fax: +34-91-398-66-97 (R.M.C.)
| | - María Carmen Torralba
- Departamento de Química Inorgánica I and CAI de Difracción de Rayos-X, Facultad de Ciencias Químicas, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (R.M.C.); (M.C.T.); (D.A.C.); Tel.: +34-91-398-73-22 (R.M.C.); Fax: +34-91-398-66-97 (R.M.C.)
| | - María Rosario Torres
- Departamento de Química Inorgánica I and CAI de Difracción de Rayos-X, Facultad de Ciencias Químicas, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; E-Mail:
| | - José Elguero
- Instituto de Química Médica, Centro de Química Orgánica “Manuel Lora-Tamayo”, CSIC, Juan de la Cierva, 3, Madrid 28006, Spain; E-Mail:
| | - José A. García
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Avda. del Conocimiento s/n, Armilla, 18100 Granada, Spain; E-Mails: (J.A.G.); (A.L.)
| | - Ana López
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Avda. del Conocimiento s/n, Armilla, 18100 Granada, Spain; E-Mails: (J.A.G.); (A.L.)
| | - Darío Acuña-Castroviejo
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Avda. del Conocimiento s/n, Armilla, 18100 Granada, Spain; E-Mails: (J.A.G.); (A.L.)
- Authors to whom correspondence should be addressed; E-Mails: (R.M.C.); (M.C.T.); (D.A.C.); Tel.: +34-91-398-73-22 (R.M.C.); Fax: +34-91-398-66-97 (R.M.C.)
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Prast H, Hornick A, Kraus MM, Philippu A. Origin of endogenous nitric oxide released in the nucleus accumbens under real-time in vivo conditions. Life Sci 2015; 134:79-84. [PMID: 26006039 DOI: 10.1016/j.lfs.2015.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 04/08/2015] [Accepted: 04/27/2015] [Indexed: 12/21/2022]
Abstract
AIMS Nitric oxide (NO), is a simple but multifarious molecule. It is implicated in physiological and pathological processes within the striatum, mainly in the nucleus accumbens (NAc). The aim of the present study was to determine the origin of NO in the NAc of anaesthetized rats by applying various compounds known to modulate the release of NO when applied either systemically or locally. MAIN METHODS Real-time monitoring of NO was carried out by introducing an amperometric NO sensor into the outer tubing of a push-pull cannula. For local application of substances, the push-pull superfusion technique was used. KEY FINDINGS An overdose of urethane (i.p.) or superfusion of the NAc with tetrodotoxin (TTX) led to a fall of NO release in the NAc. The NO synthase (NOS) inhibitors 7-nitroindazolmonosodiumsalt (7-NINA, neuronal NOS selective) and N-nitro-L-arginine (L-NNA, NOS selective) decreased release of NO when applied i.p. or locally. Superfusion of the NAc with N-methyl-D-aspartate (NMDA) elicited a dose dependent increase of NO release. SIGNIFICANCE Combination of an amperometric NO sensor for real-time monitoring of NO release with the push-pull superfusion technique showed that NO released in the NAc is, at least to a great extent, of neuronal origin. The enhanced release of NO elicited by locally applied NMDA demonstrates that activation of NMDA receptors facilitates NO synthesis, thus underlining the functionality of NO targets within the NAc.
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Affiliation(s)
- Helmut Prast
- Department of Pharmacology and Toxicology, University of Innsbruck, Peter-Mayr-Strasse 1, A-6020 Innsbruck, Austria
| | - Ariane Hornick
- Department of Pharmacology and Toxicology, University of Innsbruck, Peter-Mayr-Strasse 1, A-6020 Innsbruck, Austria
| | - Michaela M Kraus
- 2nd Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, GR-54006 Thessaloniki, Greece
| | - Athineos Philippu
- Department of Pharmacology and Toxicology, University of Innsbruck, Peter-Mayr-Strasse 1, A-6020 Innsbruck, Austria.
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Nordmann J, Eierhoff S, Denißen M, Mayer B, Müller TJJ. Two-Step Synthesis of Blue Luminescent (Pyrrol-3-yl)-1H-(aza)indazoles Based on a Three-Component Coupling-Cyclocondensation Sequence. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500575] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ferreira NR, Lourenço C, Barbosa RM, Laranjinha J. Coupling of ascorbate and nitric oxide dynamics in vivo in the rat hippocampus upon glutamatergic neuronal stimulation: A novel functional interplay. Brain Res Bull 2015; 114:13-9. [DOI: 10.1016/j.brainresbull.2015.03.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 02/09/2015] [Accepted: 03/07/2015] [Indexed: 01/01/2023]
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Yuan G, Vasavda C, Peng YJ, Makarenko VV, Raghuraman G, Nanduri J, Gadalla MM, Semenza GL, Kumar GK, Snyder SH, Prabhakar NR. Protein kinase G-regulated production of H2S governs oxygen sensing. Sci Signal 2015; 8:ra37. [PMID: 25900831 DOI: 10.1126/scisignal.2005846] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Reflexes initiated by the carotid body, the principal O2-sensing organ, are critical for maintaining cardiorespiratory homeostasis during hypoxia. O2 sensing by the carotid body requires carbon monoxide (CO) generation by heme oxygenase-2 (HO-2) and hydrogen sulfide (H2S) synthesis by cystathionine-γ-lyase (CSE). We report that O2 stimulated the generation of CO, but not that of H2S, and required two cysteine residues in the heme regulatory motif (Cys(265) and Cys(282)) of HO-2. CO stimulated protein kinase G (PKG)-dependent phosphorylation of Ser(377) of CSE, inhibiting the production of H2S. Hypoxia decreased the inhibition of CSE by reducing CO generation resulting in increased H2S, which stimulated carotid body neural activity. In carotid bodies from mice lacking HO-2, compensatory increased abundance of nNOS (neuronal nitric oxide synthase) mediated O2 sensing through PKG-dependent regulation of H2S by nitric oxide. These results provide a mechanism for how three gases work in concert in the carotid body to regulate breathing.
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Affiliation(s)
- Guoxiang Yuan
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA
| | - Chirag Vasavda
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA
| | - Ying-Jie Peng
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA
| | - Vladislav V Makarenko
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA
| | - Gayatri Raghuraman
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA
| | - Jayasri Nanduri
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA
| | - Moataz M Gadalla
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Gregg L Semenza
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Departments of Pediatrics, Medicine, Oncology, Radiation Oncology, and Biological Chemistry; and McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ganesh K Kumar
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA
| | - Solomon H Snyder
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Nanduri R Prabhakar
- Institute for Integrative Physiology and Center for Systems Biology for O2 Sensing, Biological Sciences Division, University of Chicago, Chicago, IL 60637, USA.
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de Oliveira Azevedo A, Campos JJ, de Souza GG, de Carvalho Veloso C, Duarte IDG, Braga FC, de Castro Perez A. Antinociceptive and anti-inflammatory effects of myricetin 3-O-β-galactoside isolated from Davilla elliptica: involvement of the nitrergic system. J Nat Med 2015; 69:487-93. [DOI: 10.1007/s11418-015-0913-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 04/06/2015] [Indexed: 10/23/2022]
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26
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Orzelska J, Talarek S, Listos J, Fidecka S. Divergent effects of L-arginine-NO pathway modulators on diazepam and flunitrazepam responses in NOR task performance. Behav Brain Res 2015; 284:179-86. [PMID: 25698597 DOI: 10.1016/j.bbr.2015.02.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 02/02/2015] [Accepted: 02/06/2015] [Indexed: 01/09/2023]
Abstract
The goal of the study was an evaluation of the degree, in which nitric oxide (NO) is involved in the benzodiazepines (BZs)-induced recognition memory impairment in rats. The novel object recognition (NOR) test was used to examine recognition memory. The current research focused on the object memory impairing effects of diazepam (DZ; 0.5 and 1mg/kg, sc) and flunitrazepam (FNZ; 0.1 and 0.2mg/kg; sc) in 1-hour delay periods in rats. It was found that acute ip injection of L-arginine (L-arg; 250 and 500 mg/kg; ip), 5 min before DZ administration (0.5mg/kg, sc) prevented DZ-induced memory deficits. On the other hand, it was also proven that L-arg (125, 250 and 500 mg/kg; ip) did not change the behaviour of rats in the NOR test, following a combined administration with FNZ at a threshold dose (0.05 mg/kg; sc). It was also found that 7-nitroindazole (7-NI; 10, 20 and 40 mg/kg; ip) induced amnesic effects in DZ in rats, submitted to the NOR test, following a combined administration of 7-NI with a threshold dose of DZ (0.25mg/kg; sc). However, following a combined administration of 7-NI (10, 20 and 40 mg/kg; ip) with FNZ (0.1mg/kg; sc), it was observed that 7-NI inhibited the amnesic effects of FNZ on rats in the NOR test. Those findings led us to hypothesize that NO synthesis suppression may induce amnesic effects of DZ, while preventing FNZ memory impairment in rats, submitted to NOR tasks.
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Affiliation(s)
- Jolanta Orzelska
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093 Lublin, Poland.
| | - Sylwia Talarek
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093 Lublin, Poland
| | - Joanna Listos
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093 Lublin, Poland
| | - Sylwia Fidecka
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093 Lublin, Poland
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A Blocker of NO Synthase Intensifies c-fos Expression in Spinal Neurons of Rats Realizing Stereotypic Movements. NEUROPHYSIOLOGY+ 2015. [DOI: 10.1007/s11062-015-9465-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mukherjee P, Cinelli MA, Kang S, Silverman RB. Development of nitric oxide synthase inhibitors for neurodegeneration and neuropathic pain. Chem Soc Rev 2014; 43:6814-38. [PMID: 24549364 PMCID: PMC4138306 DOI: 10.1039/c3cs60467e] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Nitric oxide (NO) is an important signaling molecule in the human body, playing a crucial role in cell and neuronal communication, regulation of blood pressure, and in immune activation. However, overproduction of NO by the neuronal isoform of nitric oxide synthase (nNOS) is one of the fundamental causes underlying neurodegenerative disorders and neuropathic pain. Therefore, developing small molecules for selective inhibition of nNOS over related isoforms (eNOS and iNOS) is therapeutically desirable. The aims of this review focus on the regulation and dysregulation of NO signaling, the role of NO in neurodegeneration and pain, the structure and mechanism of nNOS, and the use of this information to design selective inhibitors of this enzyme. Structure-based drug design, the bioavailability and pharmacokinetics of these inhibitors, and extensive target validation through animal studies are addressed.
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Affiliation(s)
- Paramita Mukherjee
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA.
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Man’kovskaya YP, Maisky VA, Vlasenko OV, Maznychenko AV. 7-Nitroindazole enhances c-Fos expression in spinal neurons in rats realizing operant movements. Acta Histochem 2014; 116:1427-33. [PMID: 25306252 DOI: 10.1016/j.acthis.2014.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/12/2014] [Accepted: 09/21/2014] [Indexed: 01/11/2023]
Abstract
The expression of c-Fos and NADPH-diaphorase reactivity (NADPH-dr) in the cervical spinal cord was studied in adult male Wistar rats that realized operant reflexes after inhibition of neuronal nitric oxide synthase. Fos-immunoreactive neurons were visualized immunohistochemically in the C6/C7 spinal segments in the control, realized operant movements animals, and/or 7-nitroindazole (7-NI) injected rats. The mean numbers of immunoreactive interneurons and motoneurons (per section) were significantly greater in the Nucleus proprius (+240%) and motor nuclei (+600%) in rats of the 7-NI-pretreated and operant reflex realized group than in the isolated operant reflex realized group. Our study showed intensive staining of NADPH-dr axon terminals on the somata and initial parts of dendrites of motoneurons in experimental rats when the disodium salt of malic acid was added to the staining solution. Suppression of NO release is associated with potentiation of neuronal activation induced by descending supraspinal and proprioceptive signaling within the spinal cord.
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Triggering of protection mechanism against Phoneutria nigriventer spider venom in the brain. PLoS One 2014; 9:e107292. [PMID: 25211468 PMCID: PMC4161398 DOI: 10.1371/journal.pone.0107292] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 08/11/2014] [Indexed: 01/03/2023] Open
Abstract
Severe accidents caused by the "armed" spider Phoneutria nigriventer cause neurotoxic manifestations in victims. In experiments with rats, P. nigriventer venom (PNV) temporarily disrupts the properties of the BBB by affecting both the transcellular and the paracellular route. However, it is unclear how cells and/or proteins participate in the transient opening of the BBB. The present study demonstrates that PNV is a substrate for the multidrug resistance protein-1 (MRP1) in cultured astrocyte and endothelial cells (HUVEC) and increases mrp1 and cx43 and down-regulates glut1 mRNA transcripts in cultured astrocytes. The inhibition of nNOS by 7-nitroindazole suggests that NO derived from nNOS mediates some of these effects by either accentuating or opposing the effects of PNV. In vivo, MRP1, GLUT1 and Cx43 protein expression is increased differentially in the hippocampus and cerebellum, indicating region-related modulation of effects. PNV contains a plethora of Ca(2+), K(+) and Na(+) channel-acting neurotoxins that interfere with glutamate handling. It is suggested that the findings of the present study are the result of a complex interaction of signaling pathways, one of which is the NO, which regulates BBB-associated proteins in response to PNV interference on ions physiology. The present study provides additional insight into PNV-induced BBB dysfunction and shows that a protective mechanism is activated against the venom. The data shows that PNV has qualities for potential use in drug permeability studies across the BBB.
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Neuronal nitric oxide synthase and its interaction with soluble guanylate cyclase is a key factor for the vascular dysfunction of experimental sepsis. Crit Care Med 2014; 42:e391-400. [PMID: 24717470 DOI: 10.1097/ccm.0000000000000301] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVE Vascular dysfunction plays a central role in sepsis, and it is characterized by hypotension and hyporesponsiveness to vasoconstrictors. Nitric oxide is regarded as a central element of sepsis vascular dysfunction. The high amounts of nitric oxide produced during sepsis are mainly derived from the inducible isoform of nitric oxide synthase 2. We have previously shown that nitric oxide synthase 2 levels decrease in later stages of sepsis, whereas levels and activity of soluble guanylate cyclase increase. Therefore, we studied the putative role of other relevant nitric oxide sources, namely, the neuronal (nitric oxide synthase 1) isoform, in sepsis and its relationship with soluble guanylate cyclase. We also studied the consequences of nitric oxide synthase 1 blockade in the hyporesponsiveness to vasoconstrictors. DESIGN Randomized controlled prospective experimental study. SETTING Academic research laboratory. SUBJECTS Female Wistar rats submitted to cecal ligation and puncture method. INTERVENTIONS 1) Six, 12, and 24 hours after cecal ligation and puncture, vascular reactivity to phenylephrine (3 and 30 nmol/kg) before and after 7-nitroindazole (45 μmol/kg, s.c.) or aminoguanidine (30 μmol/kg, s.c.) administration was evaluated. 2) Protein levels and interaction between nitric oxide synthase 1 and soluble guanylate cyclase were determined. 3) Six, 12, and 24 hours after cecal ligation and puncture, thoracic aorta segments were stimulated with phenylephrine in the presence or absence of 7-nitroindazole and cyclic guanosine monophosphate accumulation was determined. 4) After 24 hours of cecal ligation and puncture, norepinephrine was infused (10 μg/kg/min) in the presence or absence of 7-nitroindazole or S-methyl-L-thiocitrulline (1 μmol/kg, IV) and mean arterial pressure was registered. MEASUREMENTS AND MAIN RESULTS 1) Both nitric oxide synthase 1 and soluble guanylate cyclase are expressed in higher levels in vascular tissues during sepsis; 2) both proteins physically interact and nitric oxide synthase 1 blockade inhibits cyclic guanosine monophosphate production; 3) pharmacological blockade of nitric oxide synthase 1 using 7-nitroindazole or S-methyl-L-thiocitrulline reverts the hyporesponsiveness to phenylephrine and increases the vasoconstrictor effect of norepinephrine and phenylephrine. CONCLUSIONS Sepsis induces increased expression and physical association of nitric oxide synthase 1/soluble guanylate cyclase and a higher production of cyclic guanosine monophosphate that together may help explain sepsis-induced vascular dysfunction. In addition, selective inhibition of nitric oxide synthase 1 restores the responsiveness to vasoconstrictors. Therefore, inhibition of nitric oxide synthase 1 (and possibly soluble guanylate cyclase) may represent a valuable alternative to restore the effectiveness of vasopressor agents during late sepsis.
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Different vasoactive effects of chronic endothelial and neuronal NO-synthase inhibition in young Wistar rats. J Physiol Biochem 2014; 70:749-60. [DOI: 10.1007/s13105-014-0343-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 06/18/2014] [Indexed: 12/16/2022]
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Safaei S, Mohammadpoor-Baltork I, Khosropour AR, Moghadam M, Tangestaninejad S, Mirkhani V. A novel one-pot three component synthesis of N-(phenylimino)indazole-1-carbothioamides. RSC Adv 2014. [DOI: 10.1039/c3ra44064h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Nesher N, Frolkis I, Schwartz D, Chernichovski T, Levi S, Pri-Paz Y, Chernin G, Shtabsky A, Ben-Gal Y, Paz Y, Schwartz IF. L-arginine improves endothelial function, independently of arginine uptake, in aortas from chronic renal failure female rats. Am J Physiol Renal Physiol 2013; 306:F449-56. [PMID: 24338824 DOI: 10.1152/ajprenal.00457.2013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Endothelial cell dysfunction (ECD) is a common feature of chronic renal failure (CRF). Defective nitric oxide (NO) generation due to decreased endothelial nitric oxide synthase (eNOS) activity is a crucial parameter characterizing ECD. Decreased activity of cationic amino acid transporter-1 (CAT-1), the selective arginine transporter of eNOS, has been shown to inhibit eNOS in uremia. Recently, we failed to demonstrate a decrease in glomerular arginine transport in uremic female rats (Schwartz IF, Grupper A, Soetendorp H, Hillel O, Laron I, Chernichovski T, Ingbir M, Shtabski A, Weinstein T, Chernin G, Shashar M, Hershkoviz R, Schwartz D. Am J Physiol Renal Physiol 303: F396-F404, 2012). The current experiments were designed to determine whether sexual dimorphism which characterizes glomerular arginine transport system in uremia involves the systemic vasculature as well and to assess the effect of L-arginine in such conditions. Contractile and vasodilatory responses, ultrastructural changes, and measures of the L-arginine-NO system were performed in thoracic aortas of female rats subjected to 5/6 nephrectomy. The contractile response to KCl was significantly reduced, and acetylcholine-induced vasodilation was significantly impaired in aortas from CRF dames compared with healthy rats. Both of these findings were prevented by the administration of arginine in the drinking water. The decrease in both cGMP generation, a measure of eNOS activity, and aortic eNOS and phosphorylated eNOS abundance observed in CRF rats was completely abolished by l-arginine, while arginine transport and CAT-1 protein were unchanged in all experimental groups. Arginine decreased both serum levels of advanced glycation end products and the asymmetrical dimethylarginine/arginine ratio and restored the endothelial ultrastructure in CRF rats. In conclusion. arginine administration has a profound beneficial effect on ECD, independently of cellular arginine uptake, in CRF female rats.
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Affiliation(s)
- Nachum Nesher
- Dept. of Nephrology, Tel Aviv Sourasky Medical Center, 6 Weizmann St., Tel Aviv, Israel 64239.
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Effects of selective and non-selective inhibitors of nitric oxide synthase on morphine- and endomorphin-1-induced analgesia in acute and neuropathic pain in rats. Neuropharmacology 2013; 75:445-57. [DOI: 10.1016/j.neuropharm.2013.08.031] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 08/05/2013] [Accepted: 08/27/2013] [Indexed: 12/29/2022]
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Analysis of the mechanisms underlying the antinociceptive effect of epicatechin in diabetic rats. Life Sci 2013; 93:637-45. [DOI: 10.1016/j.lfs.2013.08.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/31/2013] [Accepted: 08/23/2013] [Indexed: 11/18/2022]
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Indazoles: a new top seed structure in the search of efficient drugs against Trypanosoma cruzi. Future Med Chem 2013; 5:1843-59. [DOI: 10.4155/fmc.13.144] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
For years, Chagas disease treatment has been limited to only two drugs of highly questionable and controversial use (Nifurtimox® and Benznidazole®). In the search of effective drugs, many efforts have been made, but only a few structures have emerged as actual candidates. Heading into this, the multitarget-directed approach appears as the best choice. In this framework, indazoles were shown to be potent Trypanosoma cruzi growth inhibitors, being able to lead both the formation of reactive oxygen species and the inhibition of trypanothione reductase. Herein, we discuss the main structural factors that rule the anti-T. cruzi properties of indazoles, and how they would be involved in the biological properties as well as in the action mechanisms, attempting to make parallels between the old paradigms and current evidences in order to outline what could be the next steps to follow in regard to the future drug design for Chagas disease treatment.
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Sharma N, Bhattarai JP, Hwang PH, Han SK. Nitric oxide suppresses L-type calcium currents in basilar artery smooth muscle cells in rabbits. Neurol Res 2013; 35:424-8. [PMID: 23540411 DOI: 10.1179/1743132812y.0000000129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVES Nitric oxide (NO) is well known to be a vasodilator, and NO donor compounds are currently used for treating vasospasm following subarachnoid hemorrhage. However, the action mechanism of cerebral vascular relaxation is not yet clear. L-type calcium channels have been determined to play an essential role in smooth muscle contraction. To investigate the role of L-type calcium channels in NO-induced relaxation of basilar smooth muscle cells, we examined the effect of the NO donor, sodium nitroprusside (SNP) on calcium (Ca2+) currents using smooth muscle cells isolated from a rabbit basilar artery. METHOD The smooth muscle cells were isolated from rabbit basilar artery by enzyme treatment. To identify L-type Ca2+ currents, we used cesium chloride, a potassium channel blocker and Bay K8644, an activator of L-type Ca2+ channel. RESULTS The L-type calcium currents (91±13.0 pA; n = 11) were significantly reduced by SNP (32±5 pA; n = 11; P<0.05). 1H-[1,2,4] Oxadiazolo [4,3-a] quinoxalin-1-one, a 3',5'-cyclic guanosine monophosphate inhibitor, blocked the effect of SNP on L-type Ca2+ currents, and similar results were obtained after the application of 7-nitroindazole, a specific NO synthase inhibitor. Furthermore, inward currents were enhanced by Bay K8644 (170±22 pA; n = 5) and were suppressed by SNP (54±13 pA; n = 5; P<0.05). DISCUSSION These results demonstrate that NO suppresses the L-type Ca2+ currents in rabbit basilar smooth muscle cells, and suggest that L-type Ca2+ channels may play a pivotal role in NO-induced vascular relaxation.
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Affiliation(s)
- Naveen Sharma
- Department of Pediatrics & Research Institute of Clinical Medicine, School of Medicine, Chonbuk National University, Jeonju, Korea
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Taghi Mansouri M, Naghizadeh B, Ghorbanzadeh B, Farbood Y. Central and peripheral antinociceptive effects of ellagic acid in different animal models of pain. Eur J Pharmacol 2013; 707:46-53. [DOI: 10.1016/j.ejphar.2013.03.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 03/06/2013] [Accepted: 03/07/2013] [Indexed: 12/22/2022]
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Orzelska J, Talarek S, Listos J, Fidecka S. Effects of NOS inhibitors on the benzodiazepines-induced memory impairment of mice in the modified elevated plus-maze task. Behav Brain Res 2013; 244:100-6. [PMID: 23396146 DOI: 10.1016/j.bbr.2013.01.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 01/23/2013] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
Abstract
The aim of the present study was to examine the effects of nitric oxide synthase (NOS) inhibitors on responses, elicited by benzodiazepines (BZs) in a modified elevated plus-maze task in mice. It was shown that acute doses of diazepam (DZ; 1 and 2 mg/kg) and flunitrazepam (FNZ; 0.05, 0.1 and 0.2 mg/kg) significantly increased the time of transfer latency (TL2) in a retention trial, thus confirming memory impairing effects of BZs. l-NAME (N(G)-nitro-l-arginine methyl ester; 200 mg/kg), a non-selective inhibitor of NOS, and 7-NI (7-nitroindazole; 40 mg/kg), a selective inhibitor of NOS, further intensified DZ-induced memory impairment. On the other hand, L-NAME (50, 100 and 200 mg/kg) and 7-NI (10, 20 and 40 mg/kg) prevented FNZ-induced memory compromising process. The results of this study indicated that suppressed NO synthesis enhanced DZ-induced but prevented FNZ-induced memory impairment. Taken together, these findings could suggest NO involvement in BZs-induced impairment of memory processes. The precise mechanism of these controversial effects, however, remains elusive.
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Affiliation(s)
- Jolanta Orzelska
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland.
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Huang CF, Hsu CN, Chien SJ, Lin YJ, Huang LT, Tain YL. Aminoguanidine attenuates hypertension, whereas 7-nitroindazole exacerbates kidney damage in spontaneously hypertensive rats: The role of nitric oxide. Eur J Pharmacol 2013. [DOI: 10.1016/j.ejphar.2012.11.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Matsumura N, Kikuchi-Utsumi K, Sakamaki K, Watabe M, Aoyama K, Nakaki T. Anticonvulsant action of indazole. Epilepsy Res 2012; 104:203-16. [PMID: 23219048 DOI: 10.1016/j.eplepsyres.2012.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 11/09/2012] [Indexed: 11/17/2022]
Abstract
Here we report that indazole is characterized as a potential anticonvulsant, inhibiting pentylenetetrazole-, electroshock- and strychnine-induced convulsions in mice (ED50's: 39.9, 43.2 and 82.4 mg/kg, respectively) but not bicuculline- and picrotoxin-induced convulsions. The median toxic dose (TD(50)) of indazole was 52.3 mg/kg by the minimal motor impairment test. Therefore, nontoxic doses produced anticonvulsant activity against pentylenetetrazole- and electroshock-induced seizures. Indazole (50 mg/kg) had no effect on spontaneous activity but induced hypothermia. It also inhibited the metabolism of dopamine and 5-hydroxytryptamine in the brain in vivo and the activities of monoamine oxidase A and B in vitro, with IC(50) values of 20.6 μM and 16.3 μM, respectively. However, these inhibitory effects do not account for the anticonvulsant activity because treatment with typical monoamine oxidase inhibitors such as pargyline or tranylcypromine did not completely reproduce the anticonvulsant activity of indazole. In the animal seizure models tested, the anticonvulsant profile of indazole most resembled that of gabapentin and somewhat resembled those of the AMPA/kainate antagonist NBQX and the sodium channel inhibitor phenytoin, but differed from that of benzodiazepine. The isobolographic analyses showed that the interactive mode of indazole with gabapentin, NBQX or phenytoin is additive. These results suggest that indazole has anticonvulsant activity and multiple mechanisms.
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Affiliation(s)
- Nobuko Matsumura
- Department of Pharmacology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
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Schwartz IF, Grupper A, Soetendorp H, Hillel O, Laron I, Chernichovski T, Ingbir M, Shtabski A, Weinstein T, Chernin G, Shashar M, Hershkoviz R, Schwartz D. Attenuated glomerular arginine transport prevents hyperfiltration and induces HIF-1α in the pregnant uremic rat. Am J Physiol Renal Physiol 2012; 303:F396-404. [PMID: 22552935 DOI: 10.1152/ajprenal.00488.2011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Pregnancy worsens renal function in females with chronic renal failure (CRF) through an unknown mechanism. Reduced nitric oxide (NO) generation induces renal injury. Arginine transport by cationic amino acid transporter-1 (CAT-1), which governs endothelial NO generation, is reduced in both renal failure and pregnancy. We hypothesize that attenuated maternal glomerular arginine transport promotes renal damage in CRF pregnant rats. In uremic rats, pregnancy induced a significant decrease in glomerular arginine transport and cGMP generation (a measure of NO production) compared with CRF or pregnancy alone and these effects were prevented by l-arginine. While CAT-1 abundance was unchanged in all experimental groups, protein kinase C (PKC)-α, phosphorylated PKC-α (CAT-1 inhibitor), and phosphorylated CAT-1 were significantly augmented in CRF, pregnant, and pregnant CRF animals; phenomena that were prevented by coadministrating l-arginine. α-Tocopherol (PKC inhibitor) significantly increased arginine transport in both pregnant and CRF pregnant rats, effects that were attenuated by ex vivo incubation of glomeruli with PMA (a PKC stimulant). Renal histology revealed no differences between all experimental groups. Inulin and p-aminohippurate clearances failed to augment and renal cortical expression of hypoxia inducible factor-1α (HIF-1α) significantly increased in CRF pregnant rat, findings that were prevented by arginine. These studies suggest that in CRF rats, pregnancy induces a profound decrease in glomerular arginine transport, through posttranslational regulation of CAT-1 by PKC-α, resulting in attenuated NO generation. These events provoke renal damage manifested by upregulation of renal HIF-1α and loss of the ability to increase glomerular filtration rate during gestation.
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Affiliation(s)
- Idit F Schwartz
- Department of Nephrology, Tel Aviv Sourasky Medical Center, Tel Aviv University, Sackler School of Medicine, Tel Aviv, Israel
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Pilyavskii AI, Maisky VA, Maznychenko AV, Kostyukov AI. 7-Nitroindazole potentiates c-fos expression induced by muscle tendon vibration in the spinal cord. Muscle Nerve 2012; 45:597-602. [PMID: 22431094 DOI: 10.1002/mus.23230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Expression of c-fos initiated by muscle proprioceptive signaling was studied in rats after inhibition of neuronal nitric oxide synthase (nNOS) with administration of 7-nitroindazole (7-NI). METHODS Fos-immunoreactive (Fos-ir) neurons were visualized immunohistochemically in the lumbar cord after vibration of the Achilles tendon and/or 7-NI systemic injections. RESULTS The total number of Fos-ir interneurons and motoneurons (per slice) was significantly greater in the 7-NI-pretreated and tendon-vibrated (7-NI + Tv) group than in the isolated tendon vibration group (Tv group). The greatest increases in the number of Fos-ir neurons were found in the L4 (+100%) and L5 (+105%) segments (P < 0.05). CONCLUSIONS Suppression of NO release after introduction of 7-NI was associated with potentiation of Fos immunoreactivity induced by muscle proprioceptive signaling within distinctive regions of the spinal cord.
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Affiliation(s)
- Alexander I Pilyavskii
- Department of Movement Physiology, Bogomoletz Institute of Physiology, National Academy of Sciences, Bogomoletz Str. 4, Kiev 01024, Ukraine.
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Duma D, Fernandes D, Bonini MG, Stadler K, Mason RP, Assreuy J. NOS-1-derived NO is an essential triggering signal for the development of systemic inflammatory responses. Eur J Pharmacol 2011; 668:285-92. [DOI: 10.1016/j.ejphar.2011.05.065] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 05/10/2011] [Accepted: 05/22/2011] [Indexed: 01/09/2023]
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Khalid MH, Akhtar MN, Mohamad AS, Perimal EK, Akira A, Israf DA, Lajis N, Sulaiman MR. Antinociceptive effect of the essential oil of Zingiber zerumbet in mice: possible mechanisms. JOURNAL OF ETHNOPHARMACOLOGY 2011; 137:345-51. [PMID: 21664960 DOI: 10.1016/j.jep.2011.05.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2011] [Revised: 05/12/2011] [Accepted: 05/26/2011] [Indexed: 05/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zingiber zerumbet (L.) Smith, a wild edible ginger species or locally known as "lempoyang", commonly used in the Malays traditional medicine as an appetizer or to treat stomachache, toothache, muscle sprain and as a cure for swelling sores and cuts. AIM The present study was conducted to investigate the possible mechanism of actions underlying the systemic antinociception activity of the essential oil of Zingiber zerumbet (EOZZ) in chemical-induced nociception tests in mice. MATERIALS AND METHODS Acetic acid-induced abdominal constriction, capsaicin-, glutamate- and phorbol 12-myristate 13-acetate-induced paw licking tests in mice were employed in the study. In all experiments, EOZZ was administered systemically at the doses of 50, 100, 200 and 300 mg/kg. RESULTS It was shown that EOZZ given to mice via intraperitoneal and oral routes at 50, 100, 200 and 300 mg/kg produced significant dose dependent antinociception when assessed using acetic acid-induced abdominal writing test with calculated mean ID(50) values of 88.84 mg/kg (80.88-97.57 mg/kg) and 118.8 mg/kg (102.5-137.8 mg/kg), respectively. Likewise, intraperitoneal administration of EOZZ at similar doses produced significant dose dependent inhibition of neurogenic pain induced by intraplantar injection of capsaicin (1.6 μg/paw), glutamate (10 μmol/paw) and phorbol 12-myristate 13-acetate (1.6μg/paw) with calculated mean ID(50) of 128.8 mg/kg (118.6-139.9 mg/kg), 124.8 mg/kg (111.4-139.7 mg/kg) and 40.29 (35.39-45.86) mg/kg, respectively. It was also demonstrated that pretreatment with l-arginine (100mg/kg, i.p.), a nitric oxide precursor significantly reversed antinociception produced by EOZZ suggesting the involvement of l-arginine/nitric oxide pathway. In addition, methylene blue (20mg/kg, i.p.) significantly enhanced antinociception produced by EOZZ. Administration of glibenclamide (10mg/kg, i.p.), an ATP-sensitive K(+) channel antagonist significantly reversed antinociceptive activity induced by EOZZ. CONCLUSION Together, the present results suggested that EOZZ-induced antinociceptive activity was possibly related to its ability to inhibit glutamatergic system, TRPV1 receptors as well as through activation of l-arginine/nitric oxide/cGMP/protein kinase C/ATP-sensitive K(+) channel pathway.
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MESH Headings
- Administration, Oral
- Analgesics/administration & dosage
- Analgesics/pharmacology
- Animals
- Arginine/metabolism
- Behavior, Animal/drug effects
- Cyclic GMP/metabolism
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Zingiber officinale
- Glutamic Acid/metabolism
- Injections, Intraperitoneal
- KATP Channels/drug effects
- KATP Channels/metabolism
- Male
- Medicine, Traditional
- Mice
- Mice, Inbred ICR
- Neural Pathways/drug effects
- Neural Pathways/metabolism
- Neural Pathways/physiopathology
- Nitric Oxide/metabolism
- Oils, Volatile/administration & dosage
- Oils, Volatile/pharmacology
- Pain/chemically induced
- Pain/metabolism
- Pain/physiopathology
- Pain/prevention & control
- Pain/psychology
- Pain Measurement
- Pain Threshold/drug effects
- Plant Oils/administration & dosage
- Plant Oils/pharmacology
- Plant Roots
- Plants, Medicinal
- Protein Kinase C/metabolism
- Signal Transduction/drug effects
- TRPV Cation Channels/drug effects
- TRPV Cation Channels/metabolism
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The effect of nNOS inhibitors on toxin-induced cell death in dopaminergic cell lines depends on the extent of enzyme expression. Brain Res 2011; 1404:21-30. [PMID: 21737065 DOI: 10.1016/j.brainres.2011.05.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 03/24/2011] [Accepted: 05/27/2011] [Indexed: 01/13/2023]
Abstract
Nitric oxide is linked with neurodegeneration in Parkinson's disease (PD) through the involvement of both inducible (iNOS) and neuronal nitric oxide synthase (nNOS). While non-selective NOS inhibitors are neuroprotective, the role of nNOS has not been determined using selective NOS inhibitors. The present study investigated the neuroprotective effect of selective iNOS and nNOS inhibitors on MPP(+)- and MG-132-induced cell death in cell lines with differing levels of nNOS expression. Inhibition of endogenously expressed nNOS by 7-NI and ARR17477 enhanced the toxicity of MPP(+) and MG-132 in N1E-115 cells, whereas in transfected SH-SY5Y cells overexpressing nNOS, ARR17477 and 7-NI protected against MPP(+)- and MG-132-induced cell death. In contrast, inhibition of iNOS by 1400W was ineffective in preventing MPP(+) and MG-132 toxicity in these cell lines. These results suggest a dual role for NOS in dopaminergic cell viability. nNOS is protective against toxic insult when produced endogenously. When nNOS is overexpressed, it becomes neurotoxic to cells suggesting that inhibition of nNOS may be a promising strategy to prevent cell death in PD.
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Pain on injection of propofol: a comparison of methylene blue and lidocaine. J Clin Anesth 2011; 23:270-4. [DOI: 10.1016/j.jclinane.2010.09.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2009] [Revised: 09/19/2010] [Accepted: 09/22/2010] [Indexed: 11/22/2022]
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Vega C, Moreno-Carranza B, Zamorano M, Quintanar-Stéphano A, Méndez I, Thebault S, Martínez de la Escalera G, Clapp C. Prolactin promotes oxytocin and vasopressin release by activating neuronal nitric oxide synthase in the supraoptic and paraventricular nuclei. Am J Physiol Regul Integr Comp Physiol 2010; 299:R1701-8. [PMID: 20943859 DOI: 10.1152/ajpregu.00575.2010] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Prolactin (PRL) stimulates the secretion of oxytocin (OXT) and arginine AVP as part of the maternal adaptations facilitating parturition and lactation. Both neurohormones are under the regulation of nitric oxide. Here, we investigate whether the activation of neuronal nitric oxide synthase (nNOS) in the hypothalamo-neurohypophyseal system mediates the effect of PRL on OXT and AVP release and whether these effects operate in males. Plasma levels of OXT and AVP were measured in male rats after the intracerebroventricular injection of PRL or after inducing hyperprolactinemia by placing two anterior pituitary glands under the kidney capsule. NOS activity was evaluated in the paraventricular (PVN) and supraoptic (SON) hypothalamic nuclei by NADPH-diaphorase histochemistry and in hypothalamic extracts by the phosphorylation/inactivation of nNOS at Ser847. Elevated central and systemic PRL correlated with increased NOS activity in the PVN and SON and with higher OXT and AVP circulating levels. Notably, treatment with 7-nitroindazole, a selective inhibitor of nNOS, prevented PRL-induced stimulation of the release of both neurohormones. Also, phosphorylation of nNOS was reduced in hyperprolactinemic rats, and treatment with bromocriptine, an inhibitor of anterior pituitary PRL secretion, suppressed this effect. These findings suggest that PRL enhances nNOS activity in the PVN and SON, thereby contributing to the regulation of OXT and AVP release. This mechanism likely contributes to the regulation of processes beyond those of female reproduction.
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Affiliation(s)
- Claudia Vega
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, México
| | - Bibiana Moreno-Carranza
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, México
| | - Miriam Zamorano
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, México
| | | | - Isabel Méndez
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, México
- Departamento de Biología Reproductiva, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Stéphanie Thebault
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, México
| | | | - Carmen Clapp
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, México
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