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Pereira M, Siba IP, Acco A, Correia D, Lapa FR, Santos ARS, Ruani AP, Pizzolatti MG, Andreatini R. Myricitrin exhibits antidepressant-like effects and reduces IL-6 hippocampal levels in the chronic mild stress model. Behav Brain Res 2022; 429:113905. [PMID: 35490774 DOI: 10.1016/j.bbr.2022.113905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/14/2022] [Accepted: 04/22/2022] [Indexed: 11/02/2022]
Abstract
The flavonoid myricitrin showed an antidepressant-like effect in the tail suspension test and increased hippocampal neurogenesis, as well as demonstrating anti-inflammatory effects. Interestingly, inflammation has been linked to depression, and anti-inflammatory drugs showed promising results as antidepressant-like drugs. Thus, the present study evaluated the effects of myricitrin in the chronic mild stress (CMS) model, a translational and valid animal model of depression, using the mini-experiment design to improve the reproducibility of the findings. The sucrose preference test (SPT), forced swim test (FST), and tail suspension test (TST) were the readouts of depressive-like phenotypes induced by CMS. Relative adrenal weight was employed as an index of the hypothalamus-pituitary-adrenal (HPA) axis activation. Interleukin (IL)-6 and tumor necrosis factor (TNF)-alpha levels were measured in the hippocampus. Myricitrin (10 mg/kg, intraperitoneally, for 14 days) reversed depressive-like behaviors induced by CMS (increased immobility in the FST, the TST and anhedonia), as well as decreased adrenal hypertrophy and hippocampal levels of IL-6 in stressed mice. Similar results were observed by imipramine (20 mg/kg, intraperitoneally, for 14 days), a serotonin and norepinephrine reuptake inhibitor (positive control). A significant correlation was observed between immobility time in the TST, and hippocampal IL-6 levels. Hippocampal TNF-α levels were not affected by CMS or drug treatment. In conclusion, myricitrin exhibited an antidepressant-like profile in CMS, and this effect may be associated with its anti-inflammatory activity.
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Affiliation(s)
- Marcela Pereira
- Federal University of Paraná, Pharmacology Department, Curitiba, Brazil
| | - Isadora P Siba
- Federal University of Paraná, Pharmacology Department, Curitiba, Brazil
| | - Alexandra Acco
- Federal University of Paraná, Pharmacology Department, Curitiba, Brazil
| | - Diego Correia
- Federal University of Paraná, Pharmacology Department, Curitiba, Brazil
| | - Fernanda R Lapa
- Federal University of Santa Catarina, Laboratory of Neurobiology of Pain and Inflammation, Physiological Sciences Department, Santa Catarina, Brazil
| | - Adair R S Santos
- Federal University of Santa Catarina, Laboratory of Neurobiology of Pain and Inflammation, Physiological Sciences Department, Santa Catarina, Brazil
| | - Ana P Ruani
- Federal University of Santa Catarina, Chemistry Department, Santa Catarina, Brazil
| | - Moacir G Pizzolatti
- Federal University of Santa Catarina, Chemistry Department, Santa Catarina, Brazil
| | - Roberto Andreatini
- Federal University of Paraná, Pharmacology Department, Curitiba, Brazil.
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Martins-Silva C, de Souza Pinho N, Ferreira GG, Aguiar RM, Ferreira TA, Pires RGW, Tizziani T, Pizzolatti MG, Santos ARS. Polygala sabulosa A.W. Bennett extract mitigates motor and cognitive deficits in a mouse model of acute ischemia. Metab Brain Dis 2021; 36:453-462. [PMID: 33394286 DOI: 10.1007/s11011-020-00660-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023]
Abstract
Stroke is considered one of the leading causes of death worldwide. The treatment is limited; however, the Brazilian flora has a great source of natural products with therapeutic potentials. Studies with the medicinal plant Polygala sabulosa W. Bennett provided evidence for its use as an anti-inflammatory and neuroprotective drug. In the case of ischemic stroke due to lack of oxygen, both acute and chronic inflammatory processes are activated. Thus, we hypothesized that P. sabulosa (HEPs) has the potential to treat the motor and cognitive deficits generated by ischemic stroke. Male mice were subjected to global ischemia for 60 min, followed by reperfusion and orally treated with HEPs (100 mg/kg in saline + 3% tween 20) twice a day (12 h apart) for 48 h starting 3 h after surgery. Motor skills were assessed using grip force and open field tasks. Hippocampi were then collected for mRNA quantification of the cytokines IL-1-β and TNF-α levels. After 48 h of acute treatment, spatial reference memory was evaluated in a Morris water maze test for another group of animals. We show that HEPs treatment significantly prevented motor weakness induced by ischemia. Brain infarct area was reduced by 22.25% with downregulation of the levels of IL-1β and TNF-α mRNA. Learning performance and memory ability on Morris water maze task were similar to the sham group. Our data demonstrates the neuroprotective properties of HEPs through its anti-inflammatory activities, which prevent motor and cognitive impairments, suggesting that HEPs may be an effective therapy for ischemic stroke.
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Affiliation(s)
- Cristina Martins-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo (UFES), Vitoria, ES, Brazil.
- Laboratory of Neurochemistry and Behaviour (LabNeC), Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, 29043910, Brazil.
- Graduate Program in Biochemistry and Pharmacology, UFES, Vitoria, ES, Brazil.
| | - Natalie de Souza Pinho
- Laboratory of Neurochemistry and Behaviour (LabNeC), Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, 29043910, Brazil
| | - Glenda G Ferreira
- Laboratory of Neurochemistry and Behaviour (LabNeC), Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, 29043910, Brazil
- Graduate Program in Biochemistry and Pharmacology, UFES, Vitoria, ES, Brazil
| | - Rafael Moraes Aguiar
- Laboratory of Neurochemistry and Behaviour (LabNeC), Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, 29043910, Brazil
- Graduate Program in Biochemistry and Pharmacology, UFES, Vitoria, ES, Brazil
| | - Tamara Alarcon Ferreira
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo (UFES), Vitoria, ES, Brazil
| | - Rita G W Pires
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo (UFES), Vitoria, ES, Brazil
- Graduate Program in Biochemistry and Pharmacology, UFES, Vitoria, ES, Brazil
| | - Tiago Tizziani
- Department of Chemistry, Physical and Mathematical Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Moacir G Pizzolatti
- Department of Chemistry, Physical and Mathematical Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Adair R S Santos
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Biological Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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Gomes Castro AJ, Cazarolli LH, Bretanha LC, Sulis PM, Rey Padilla DP, Aragón Novoa DM, Dambrós BF, Pizzolatti MG, Mena Barreto Silva FR. The potent insulin secretagogue effect of betulinic acid is mediated by potassium and chloride channels. Arch Biochem Biophys 2018; 648:20-26. [PMID: 29704483 DOI: 10.1016/j.abb.2018.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/19/2018] [Accepted: 04/21/2018] [Indexed: 12/13/2022]
Abstract
Betulinic acid (BA) has been described as an insulin secretagogue which may explain its potent antihyperglycemic effect; however, the exact role of BA as an insulinogenic agent is not clear. The aim of this study was to investigate the mechanism of BA on calcium influx and static insulin secretion in pancreatic islets isolated from euglycemic rats. We found that BA triggers calcium influx by a mechanism dependent on ATP-dependent potassium channels and L-type voltage-dependent calcium channels. Additionally, the voltage-dependent and calcium-dependent chloride channels are also involved in the mechanism of BA, probably due to an indirect stimulation of calcium entry and increased intracellular calcium. Additionally, the downstream activation of PKC, which is necessary for the effect of BA on calcium influx, is involved in the full stimulatory response of the triterpene. BA stimulated the static secretion of insulin in pancreatic islets, indicating that the abrupt calcium influx may be a key step in its secretagogue effect. As such, BA stimulates insulin secretion through the activation of electrophysiological mechanisms, such as the closure of potassium channels and opening of calcium and chloride channels, inducing cellular depolarization associated with metabolic-biochemical effects, in turn activating PKC and ensuring the secretion of insulin.
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Affiliation(s)
- Allisson Jhonatan Gomes Castro
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Luisa Helena Cazarolli
- Universidade Federal da Fronteira Sul, Campus Universitário Laranjeiras do Sul, Laranjeiras do Sul, PR, Brazil
| | - Lizandra C Bretanha
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Paola Miranda Sulis
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Diana Patricia Rey Padilla
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil; Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Bogotá, Colombia
| | | | - Betina Fernanda Dambrós
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Moacir G Pizzolatti
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
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Machado VR, Sandjo LP, Pinheiro GL, Moraes MH, Steindel M, Pizzolatti MG, Biavatti MW. Synthesis of lupeol derivatives and their antileishmanial and antitrypanosomal activities. Nat Prod Res 2017; 32:275-281. [DOI: 10.1080/14786419.2017.1353982] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Vanessa R. Machado
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Louis P. Sandjo
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Giovanni L. Pinheiro
- Department of Chemistry, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Milene H. Moraes
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Mario Steindel
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Moacir G. Pizzolatti
- Department of Chemistry, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Maique W. Biavatti
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
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de Sá NP, Cisalpino PS, Tavares LC, Espíndola L, Borelli BM, Barbeira PJS, Cardoso Perdigão GDM, Souza-Fagundes EM, Rosa CA, Pizzolatti MG, Johann S. Effects of two 6-quinolinyl chalcones on the integrity of plasma membrane of Paracoccidioides brasiliensis. J Antibiot (Tokyo) 2017; 70:277-284. [DOI: 10.1038/ja.2016.156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/19/2016] [Accepted: 11/23/2016] [Indexed: 11/09/2022]
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Nucci-Martins C, Nascimento LF, Venzke D, Brethanha LC, Sako AVF, Oliveira AS, Brighente IMC, Micke GA, Pizzolatti MG, Santos ARS. Antinociceptive effect of hydroalcoholic extract and isoflavone isolated from Polygala molluginifolia in mice: evidence for the involvement of opioid receptors and TRPV1 and TRPA1 channels. Phytomedicine 2016; 23:429-440. [PMID: 27064002 DOI: 10.1016/j.phymed.2016.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 01/21/2016] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
PURPOSE The plants of the genus Polygala (Polygalaceae) have been used for a long time in folk medicine to treat pain and inflammation. The species Polygala molluginifolia is native to southern Brazil and is popularly known as "cânfora". The presented study analyzes the antinociceptive effect of hydroalcoholic extract from Polygala molluginifolia (HEPm) and an isoflavone (ISO) isolated from the extract, in behavioral models of pain in mice, as well as the mechanism underlying this effect. MATERIALS AND METHODS The phytochemical analysis of HEPm was performed through a capillary electrophoresis analysis and colorimetric test. The antinociceptive effects of HEPm and ISO (10-1000 mg/kg, i.g.) were evaluated by applying the formalin test; mechanical and thermal hyperalgesia to postoperative pain in mice. The possible involvement of opioid receptors, TRPV1 and TRPA1 channels in the antinociceptive effect of HEPm and ISO were also evaluated. Finally, the nonspecific effects of HEPm and ISO were evaluated by measuring locomotor activity (Open-field Test) and corporal temperature. RESULTS The 5,3',4'-trihydroxy-6″,6″-dimethylpyrano[2″,3″:7,6] isoflavone (ISO) was identified in HEPm by capillary electrophoresis analysis and selected for the experimental tests. The oral administration of HEPm or of ISO significantly inhibited the neurogenic and inflammatory phases of formalin-induced pain, edema formation and local hyperemia, without causing any change to locomotor activity. Acute and repeated treatment of animals with HEPm reduced mechanical and thermal (heat and cold) hyperalgesia in the postoperative pain. In addition, administering HEPm or ISO markedly reduced nociceptive behavior induced by the peripheral and central injection of TRPV1 and TRPA1 channels activators. Finally, the antinociception provided by the administration of HEPm or ISO was reversed by the preadministration of naloxone. CONCLUSIONS Taken together, these results provide the first experimental evidence of the significant antinociceptive effect of HEPm and ISO in animal models of acute pain without causing sedation or locomotor dysfunction. This effect appears to be mediated, at least in part, by the activation of opioid receptors and/or by the inhibition of TRPV1 and TRPA1 channels. Moreover, this study adds new scientific evidence and highlights the therapeutic potential of the medicinal plant Polygala molluginifolia in the development of phytomedicines with analgesic properties.
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Affiliation(s)
- Catharina Nucci-Martins
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil; Graduate Program in Neuroscience, Center of Biological Sciences, Federal University of Santa Catarina, SC 88040-900, Florianópolis, Brazil
| | - Leandro F Nascimento
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil; Graduate Program in Neuroscience, Center of Biological Sciences, Federal University of Santa Catarina, SC 88040-900, Florianópolis, Brazil
| | - Dalila Venzke
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil
| | - Lizandra C Brethanha
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil
| | - Alysson V F Sako
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil
| | - Aldo S Oliveira
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil
| | - Inês M C Brighente
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil
| | - Gustavo A Micke
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil
| | - Moacir G Pizzolatti
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil
| | - Adair R S Santos
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil; Graduate Program in Neuroscience, Center of Biological Sciences, Federal University of Santa Catarina, SC 88040-900, Florianópolis, Brazil.
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Moresco HH, Colla G, Cavalcante ID, Queiroz GS, Pizzolatti MG, Brighente IMC. Chemical constituents of Eugenia catharinae and their antioxidant activity. Nat Prod Res 2016; 30:2624-2628. [DOI: 10.1080/14786419.2015.1131981] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Henrique H. Moresco
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Guilherme Colla
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Ingrid D. Cavalcante
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Gustavo S. Queiroz
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Moacir G. Pizzolatti
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Inês M. C. Brighente
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Simões RR, Coelho IS, Junqueira SC, Maldaner G, Morel AF, Venzke D, Ruani AP, Pizzolatti MG, Zanchet EM, Santos ARS. Pharmacological evidence favouring the traditional use of the root bark of Condalia buxifolia Reissek in the relief of pain and inflammation in mice. J Ethnopharmacol 2015; 175:370-377. [PMID: 26409180 DOI: 10.1016/j.jep.2015.09.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 09/21/2015] [Accepted: 09/22/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Condalia buxifolia root bark infusion is used in traditional medicine in Brazil as antipyretic, anti-inflammatory and against dysentery. This study was designed to investigate whether the methanolic extract of the root bark of Condalia buxifolia (MECb) exhibits antinociceptive and anti-inflammatory effects in mice. Furthermore, also was investigated the involvement of glutamatergic and opioidergic system in the antinociceptive effect induced by MECb. MATERIALS AND METHODS The antinociceptive and anti-inflammatory effects of intra-gastric gavage (i.g.) administered MECb (10-300 mg/kg) were evaluated in mice subjected to chemical (formalin, acetic-acid, glutamate) or thermal (hot plate) models of pain. The involvement of opioid system in the antinociceptive effect of the MECb was investigated in formalin test. Furthermore, a nonspecific effect of MECb was evaluated by measuring locomotor activity and exploratory behavior in open field test. Finally, was performed a phytochemical analysis of MECb. RESULTS The phytochemical analysis of MECb was performed through HPLC analysis showing that the alkaloid Condaline-A is the main constituent. The intragastric administration of MECb (100-300 mg/kg) significantly inhibited the nociception caused by acetic acid (48 ± 2%), inflammatory phase (49 ± 3%) and paw edema (32 ± 6) caused by formalin, and MECb (100mg/kg, i.g.) also inhibited nociception caused by glutamate (41 ± 7%). In addition, MECb (100-300 mg/kg, i.g.) increased the paw withdrawal latency in hot-plate test, without affecting the locomotor activity and exploratory behavior in open field test. Finally, the antinociceptive effects of MECb (100mg/kg, i.g.) were significantly reversed by naloxone (1mg/kg, i.p.) in the formalin test. CONCLUSION These data show, for the first time, that MECb has significant antinociceptive and anti-inflammatory effects, which appear to be related to the inhibition of the glutamatergic system and the activation of opioid mechanism, besides present central effects. These results support the use of Condalia buxifolia in traditional medicine and demonstrate that this plant has therapeutic potential for the development of phytomedicines with antinociceptive and anti-inflammatory properties.
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Affiliation(s)
- Róli R Simões
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, RS, Brazil; Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, SC, Brazil
| | - Igor S Coelho
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, SC, Brazil
| | - Stella C Junqueira
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, SC, Brazil
| | - Graciela Maldaner
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, RS, Brazil
| | - Ademir F Morel
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, RS, Brazil
| | - Dalila Venzke
- Departamento de Química, Universidade Federal de Santa Catarina, SC, Brazil
| | - Ana Paula Ruani
- Departamento de Química, Universidade Federal de Santa Catarina, SC, Brazil
| | | | - Eliane M Zanchet
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, RS, Brazil.
| | - Adair R S Santos
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, RS, Brazil; Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, SC, Brazil.
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9
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Martins DF, Emer AA, Batisti AP, Donatello N, Carlesso MG, Mazzardo-Martins L, Venzke D, Micke GA, Pizzolatti MG, Piovezan AP, dos Santos ARS. Inhalation of Cedrus atlantica essential oil alleviates pain behavior through activation of descending pain modulation pathways in a mouse model of postoperative pain. J Ethnopharmacol 2015; 175:30-38. [PMID: 26344850 DOI: 10.1016/j.jep.2015.08.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/18/2015] [Accepted: 08/27/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cedrus atlantica essential oil (CaEO) presents analgesic and anti-inflammatory sedative properties. However, it remains unknown whether CaEO alleviates acute postoperative pain. MATERIALS AND METHODS Here, we investigated the effect of CaEO on postoperative pain and its mechanisms related to the descending pain control in Swiss males mice induced by a plantar incision surgery (PIS) in the hindpaw. RESULTS Inhalation of CaEO (5', 30' or 60') markedly reduced mechanical hypersensitivity. This effect was prevented by pre-treatment with naloxone or p-chlorophenylalanine methyl ester (PCPA, 100mg/kg, i.p.)-induced depletion of serotonin. In addition, p-alpha-methyl-para-tyrosin (AMPT, 100mg/kg, i.p.)-induced depletion of norepinephrine, intraperitoneal injection of the α2-adrenergic receptor antagonist yohimbine (0.15 mg/kg, i.p.) or haloperidol (1mg/kg, i.p.) an antagonist of dopaminergic (D1 and D2) receptors prevented the effect of CaEO on hypersensitivity. CONCLUSIONS These findings suggest that CaEO alleviates postoperative pain by activating the descending pain modulation pathways on the opioidergic, serotonergic, noradrenergic (α2-adrenergic) and dopaminergic (dopamine D1 and D2 receptors) systems.
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Affiliation(s)
- Daniel F Martins
- Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil; Postgraduate Program in Health Sciences, University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil.
| | - Aline A Emer
- Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil; Postgraduate Program in Health Sciences, University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil
| | - A P Batisti
- Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil
| | - Nathalia Donatello
- Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil
| | - Mariana G Carlesso
- Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil
| | - Leidiane Mazzardo-Martins
- Department of Morphological Sciences, Centre of Biological Sciences, University Federal of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Dalila Venzke
- Department of Chemistry, University Federal of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Gustavo A Micke
- Department of Chemistry, University Federal of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Moacir G Pizzolatti
- Department of Chemistry, University Federal of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - A P Piovezan
- Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil; Postgraduate Program in Health Sciences, University of Southern Santa Catarina at Palhoça, Santa Catarina, Brazil
| | - A R S dos Santos
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Centre of Biological Sciences, University Federal of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Nucci-Martins C, Martins DF, Nascimento LF, Venzke D, Oliveira AS, Frederico MJS, Silva FRMB, Brighente IMC, Pizzolatti MG, Santos ARS. Ameliorative potential of standardized fruit extract of Pterodon pubescens Benth on neuropathic pain in mice: Evidence for the mechanisms of action. J Ethnopharmacol 2015; 175:273-286. [PMID: 26386380 DOI: 10.1016/j.jep.2015.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 08/31/2015] [Accepted: 09/05/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The medicinal plant Pterodon pubescens Benth has been traditionally used for a long time to treat rheumatic diseases due to its anti-inflammatory and analgesic activities. The present study aims to evaluate the antinociceptive effect of ethanolic extract from P. pubescens fruits (EEPp) in a model of neuropathic pain in mice. MATERIALS AND METHODS The phytochemical analysis of EEPp was performed through GC-MS, HPLC and colorimetric analysis. The antinociceptive effects of EEPp (30-300 mg/kg, i.g.) were evaluated on mechanical and thermal (cold or heat) hyperalgesia in neuropathic pain induced by partial sciatic nerve ligation (PSNL) in mice. We also investigated the effects of EEPp on the nociceptive response induced by intrathecal injection (i.t.) of ionotropic (AMPA, NMDA and kainate) and metabotropic (trans-ACPD) glutamate receptor agonists, proinflammatory cytokines such as IL-1β and TNF-α, as well as TRPV1 and TRPA1 agonists. In addition, we also investigated the safety profile of prolonged treatment with EEPp in mice. RESULTS The phytochemical analysis showed a higher amount terpenes, being nine sesquiterpenes and seven diterpenes with vouacapan skeletons, as well as a small amount of phenols and flavonoids. The exact mechanism by which EEPp promotes its antinociceptive effect is not yet fully understood, but its oral administration causes significant inhibition of glutamate-, kainate-, NMDA-, trans-ACPD-induced biting responses, as well as of proinflammatory cytokines (TNF-α and IL-1β) and TRPV1 and TRPA1 channels activators (capsaicin and cinnamaldehyde, respectively). These results may indicate, at least in part, some of the mechanisms that are involved in this effect. In particular, EEPp decreases neuropathic pain and clearly shows, for the first time, a thermal and mechanical hyperalgesia reduction in the model of partial sciatic nerve ligation (PSNL), without inducing tolerance. Furthermore, the prolonged treatment with EEPp (300 mg/kg, i.g.) showed a cumulative effect over 24h, in the 15th day, after last treatment. In addition, the open-field test showed that doses up to 300 mg/kg in both treatments, acute and/or prolonged, did not affect the motor activity of mice. Also, EEPp showed no toxicity according to the serum levels of the renal and hepatic injury indicators or observed macroscopic organs, after PSNL. CONCLUSIONS Taken together, these results provide the first experimental evidence of the significant antinociceptive effect of EEPp on neuropathic pain without causing side effects, such as sedation or locomotor dysfunction. Moreover, these results appear to be mediated, at least in part, by the inhibition of glutamatergic receptors, TRPV1 and TRPA1 channels and proinflammatory cytokines. Thus, this study adds new scientific evidence and highlights the therapeutic potential of the medicinal plant P. pubescens in the development of phytomedicines for the management of neuropathic pain.
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Affiliation(s)
- Catharina Nucci-Martins
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil; Graduate Program in Neuroscience, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Daniel F Martins
- Laboratory of Experimental Neuroscience, Graduate Program in Health Sciences, University of Southern Santa Catarina, Pedra Branca, Palhoça, SC 88137-270, Brazil
| | - Leandro F Nascimento
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil; Graduate Program in Neuroscience, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Dalila Venzke
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade Florianópolis, SC 88040-900, Brazil
| | - Aldo S Oliveira
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade Florianópolis, SC 88040-900, Brazil
| | - Marisa J S Frederico
- Graduate Program in Neuroscience, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil; Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Fátima R M B Silva
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Inês M C Brighente
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade Florianópolis, SC 88040-900, Brazil
| | - Moacir G Pizzolatti
- Department of Chemistry, Center of Physical and Mathematical Sciences, Federal University of Santa Catarina, Trindade Florianópolis, SC 88040-900, Brazil
| | - Adair R S Santos
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianópolis, SC 88040-900, Brazil; Graduate Program in Neuroscience, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
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Freitas AE, Moretti M, Budni J, Balen GO, Fernandes SC, Veronezi PO, Heller M, Micke GA, Pizzolatti MG, Rodrigues ALS. NMDA receptors and the L-arginine-nitric oxide-cyclic guanosine monophosphate pathway are implicated in the antidepressant-like action of the ethanolic extract from Tabebuia avellanedae in mice. J Med Food 2014; 16:1030-8. [PMID: 24236576 DOI: 10.1089/jmf.2012.0276] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Bark infusion of Tabebuia avellanedae Lorentz ex Griseb is consumed in tropical America folk medicine for the treatment of several diseases, including depressive disorders. It was recently demonstrated that the extract from this plant has antidepressant properties. The present study was aimed at investigating the contribution of N-methyl-D-aspartate (NMDA) receptors and the L-arginine-nitric oxide (NO)-cyclic guanosine 3'5'-monophosphate (cGMP) pathway to the antidepressant-like action of the ethanolic extract from T. avellanedae (EET) in the tail suspension test (TST). The anti-immobility effect of the extract (30 mg/kg, orally [p.o.]) was prevented by pretreatment of mice with NMDA (0.1 pmol/site, intracerebroventicular [i.c.v.]), L-arginine (750 mg/kg, intraperitoneally [i.p.]), and sildenafil (5 mg/kg, i.p.). Additionally, the combination of MK-801 (0.01 mg/kg, p.o.), 7-nitroindazole (25 mg/kg, i.p.), and 1H-[1,2,4]oxadiazole[4,3-a]quinoxalin-1-one (ODQ) (30 pmol/site, i.c.v.) with a subeffective dose of EET (1 mg/kg, p.o.) produced a synergistic antidepressant-like effect in the TST, without causing significant alterations in the locomotor activity. Moreover, the administration of an effective dose of EET (30 mg/kg, p.o.) produced a reduction in NOx levels in the cerebral cortex. Conversely, a subeffective dose of EET (1 mg/kg, p.o.) caused no changes in the cortical NOx levels. Results suggest that the antidepressant-like effect of EET in the TST is dependent on a blockade of NMDA receptor activation and inhibition of NO-cGMP synthesis, significantly extending literature data about the antidepressant-like action of this plant and reinforcing the notion that this plant may be useful in the management of depressive disorders.
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Affiliation(s)
- Andiara E Freitas
- 1 Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina , Florianópolis, Santa Catarina, Brazil
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Smania Júnior A, Smania EFA, Della Monache F, Pizzolatti MG, Delle Monache G. Derivatization Does Not Influence Antimicrobial and Antifungal Activities of Applanoxidic Acids and Sterols from Ganoderma spp. ACTA ACUST UNITED AC 2014; 61:31-4. [PMID: 16610213 DOI: 10.1515/znc-2006-1-206] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Applanoxidic acids and sterols, isolated from Ganoderma spp., were acetylated and/or methylated. The antibacterial activity against Escherichia coli and Staphylococcus aureus and the antifungal activity against Candida albicans and Trichophyton mentagrophytes of the derivatives were investigated by a microdilution method, and compared with those of the natural products. Both natural and modified compounds exhibited comparable antibacterial and antifungal activities in a range of 1.0 to > 2.0 mg/ml minimal inhibitory concentration
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Affiliation(s)
- Artur Smania Júnior
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Florianopolis, SC 88040-900, Brazil.
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Arruda-Silva F, Nascimento MVP, Luz AB, Venzke D, Queiroz GS, Fröde TS, Pizzolatti MG, Dalmarco EM. Polygala molluginifolia A. St.-Hil. and Moq. prevent inflammation in the mouse pleurisy model by inhibiting NF-κB activation. Int Immunopharmacol 2014; 19:334-41. [DOI: 10.1016/j.intimp.2014.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 02/05/2014] [Accepted: 02/10/2014] [Indexed: 10/25/2022]
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Borges FRM, Silva MD, Córdova MM, Schambach TR, Pizzolatti MG, Santos ARS. Anti-inflammatory action of hydroalcoholic extract, dichloromethane fraction and steroid α-spinasterol from Polygala sabulosa in LPS-induced peritonitis in mice. J Ethnopharmacol 2014; 151:144-50. [PMID: 24161429 DOI: 10.1016/j.jep.2013.10.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 09/16/2013] [Accepted: 10/03/2013] [Indexed: 05/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Polygala sabulosa A. W. Bennett is a small herb popularly known as "timutu-pinheirinho" that is widely distributed in southern Brazil and that is used to treat disorders of the bowel and kidney and as a topical anesthetic and expectorant in folk medicine. This study was designed to investigate the anti-inflammatory properties of the hydroalcoholic extract (HEPs), CH2Cl2 fraction and the steroid α-spinasterol obtained from the aerial parts of Polygala sabulosa in a model of acute inflammation induced by intraperitoneal injection of bacterial lipopolysaccharide in mice. MATERIALS AND METHODS The anti-inflammatory effect of HEPs (3-300 mg/kg, i.g.), CH2Cl2 fraction (0.003-30 mg/kg, i.g.) and steroid α-spinasterol (0.001-1mg/kg, i.p. or 1-10mg/kg, i.g.), were evaluated in mice subjected to the acute inflammation caused by intraperitoneal (i.p.) injection of lipopolysaccharide (LPS, 0.02 µg/kg). The anti-inflammatory activity of the HEPs, CH2Cl2 fraction and steroid were assessed by determining the total numbers of leukocytes and differential cell counts (neutrophils and mononuclear cells) and levels of pro-inflammatory (IL-1β, TNF-α, IL-6) or anti-inflammatory (IL-10) cytokines in peritoneal fluid. RESULTS The administration of HEPs (3-300 mg/kg, i.g.) completely inhibited inflammatory cell infiltration (300 mg/kg, i.g.) and it reduced TNF-α (100-300 mg/kg) and IL-1β (100mg/kg) levels in LPS-injected mice. Furthermore, the administration of CH2Cl2 fraction (0.003-30 mg/kg, i.g.) or α-spinasterol (0.001-10mg/kg, by i.p. or i.g.) significantly reduces inflammatory cell infiltration in LPS-injected mice. Moreover, dexamethasone (0.5mg/kg, i.p., used as a positive control) inhibited inflammatory cell infiltration and reduced the levels of TNF-α, IL-1β and IL-6 in LPS-injected mice. CONCLUSIONS Taken together, these results provide the first experimental evidence demonstrating that HEPs have significant anti-inflammatory effects on LPS-induced inflammation. These effects appear to be, at least in part, due to the presence of α-spinasterol. These findings support the widespread use of Polygala sabulosa in popular medicine and demonstrate that this plant has therapeutic potential for the development of phytomedicines with anti-inflammatory properties.
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Affiliation(s)
- Fabio R M Borges
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil; Programa de Pós-graduação em Neurociências, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil
| | - Morgana D Silva
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil; Programa de Pós-graduação em Neurociências, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil
| | - Marina M Córdova
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil; Programa de Pós-graduação em Neurociências, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil
| | - Tiago R Schambach
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Florianópolis 88040-970, SC, Brasil
| | - Moacir G Pizzolatti
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Florianópolis 88040-970, SC, Brasil
| | - Adair R S Santos
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil; Programa de Pós-graduação em Neurociências, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brasil.
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Pozzatti P, dos Reis GO, Pereira DF, Horst H, Espindola L, Heller M, Micke GA, Pizzolatti MG, Fröde TS. Relationship of chemical structure and anti-inflammatory activity of dihydrocorynantheol and its analogues. Pharmacol Rep 2013; 65:1263-71. [DOI: 10.1016/s1734-1140(13)71484-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 04/10/2013] [Indexed: 10/25/2022]
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16
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Freitas AE, Machado DG, Budni J, Neis VB, Balen GO, Lopes MW, de Souza LF, Veronezi PO, Heller M, Micke GA, Pizzolatti MG, Dafre AL, Leal RB, Rodrigues ALS. Antidepressant-like action of the bark ethanolic extract from Tabebuia avellanedae in the olfactory bulbectomized mice. J Ethnopharmacol 2013; 145:737-745. [PMID: 23237932 DOI: 10.1016/j.jep.2012.11.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 11/14/2012] [Accepted: 11/18/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tabebuia avellanedae Lorentz ex Griseb is a plant employed in tropical America folk medicine for the treatment of several diseases, including depressive disorders. AIM OF THE STUDY To investigate the ability of Tabebuia avellanedae ethanolic extract (EET) administered chronically to cause an antidepressant-like effect in the tail suspension test (TST), a predictive test of antidepressant activity, and to reverse behavioral (hyperactivity, anhedonic-like behavior and increased immobility time in the TST) and biochemical changes induced by olfactory bulbectomy (OB), a model of depression, in mice. MATERIALS AND METHODS Mice were submitted to OB to induce depressive-related behaviors, which were evaluated in the open-field test (hyperactivity), splash test (loss of motivational and self-care behavior indicative of an anhedonic-like behavior) and TST (increased immobility time). Phosphorylation levels of Akt, GSK-3β, ERK1/2 and CREB, as well as BDNF immunocontent, were evaluated in the hippocampus of bulbectomized mice or sham-operated mice treated for 14 days by p.o. route with EET or vehicle. RESULTS EET (10 and 30mg/kg) given 14 days by p.o route to mice reduced the immobility time in the TST without altering locomotor activity, an indicative of an antidepressant-like effect. EET per se increased both CREB (Ser(133)) and GSK-3β (Ser(9)) phosphorylation (at doses of 10-30 and 30mg/kg, respectively) in sham-operated mice. OB caused hyperactivity, loss of motivational and self-care behavior, increased immobility time in the TST and an increase in CREB and ERK1 phosphorylation, as well as BDNF immunocontent. EET abolished all these OB-induced alterations except the increment of CREB phosphorylation. Akt (Ser(473)) and ERK2 phosphorylation levels were not altered in any group. CONCLUSIONS EET ability to abolish the behavioral changes induced by OB was accompanied by modulation of ERK1 and BDNF signaling pathways, being a promising target of EET. Results indicate that this plant could constitute an attractive strategy for the management of depressive disorders, once more validating the traditional use of this plant.
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Affiliation(s)
- Andiara E Freitas
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, 88040-900 Florianópolis-SC, Brazil
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Venzke D, Carvalho FK, Ruani AP, Oliveira AS, Brighente IMC, Micke GA, Barison A, Pizzolatti MG. PAMPA Permeability, Acetylcholinesterase Inhibition and Antioxidant Activity of Pyranoisoflavones fromPolygala molluginifolia(Polygalaceae). J BRAZIL CHEM SOC 2013. [DOI: 10.5935/0103-5053.20130249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Pizzolatti MG, Bortoluzzi AJ, Brighente IMC, Zuchinalli A, Carvalho FK, Candido ACS, Peres MTLP. Clerodane Diterpenes from Bark of Croton urucuranaBaillon. J BRAZIL CHEM SOC 2013. [DOI: 10.5935/0103-5053.20130075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Machado DG, Neis VB, Balen GO, Colla A, Cunha MP, Dalmarco JB, Pizzolatti MG, Prediger RD, Rodrigues ALS. Antidepressant-like effect of ursolic acid isolated from Rosmarinus officinalis L. in mice: evidence for the involvement of the dopaminergic system. Pharmacol Biochem Behav 2012; 103:204-11. [PMID: 22940588 DOI: 10.1016/j.pbb.2012.08.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 07/28/2012] [Accepted: 08/19/2012] [Indexed: 11/20/2022]
Abstract
Ursolic acid, a constituent from Rosmarinus officinalis, is a triterpenoid compound which has been extensively known for its anticancer and antioxidant properties. In the present study, we investigated the antidepressant-like effect of ursolic acid isolated from this plant in two predictive tests of antidepressant property, the tail suspension test (TST) and the forced swimming test (FST) in mice. Furthermore, the involvement of dopaminergic system in its antidepressant-like effect was investigated in the TST. Ursolic acid reduced the immobility time in the TST (0.01 and 0.1mg/kg, p.o.) and in the FST (10mg/kg, p.o.), similar to fluoxetine (10mg/kg, p.o.), imipramine (1mg/kg, p.o.) and bupropion (10mg/kg, p.o.). The effect of ursolic acid (0.1mg/kg, p.o.) in the TST was prevented by the pretreatment of mice with SCH23390 (0.05mg/kg, s.c., a dopamine D(1) receptor antagonist) and sulpiride (50mg/kg, i.p., a dopamine D(2) receptor antagonist). The administration of a sub-effective dose of ursolic acid (0.001mg/kg, p.o.) in combination with sub-effective doses of SKF38393 (0.1mg/kg, s.c., a dopamine D(1) receptor agonist), apomorphine (0.5μg/kg, i.p., a preferential dopamine D(2) receptor agonist) or bupropion (1mg/kg, i.p., a dual dopamine/noradrenaline reuptake inhibitor) reduced the immobility time in the TST as compared with either drug alone. Ursolic acid and dopaminergic agents alone or in combination did not cause significant alterations in the locomotor and exploratory activities. These results indicate that the antidepressant-like effect of ursolic acid in the TST is likely mediated by an interaction with the dopaminergic system, through the activation of dopamine D(1) and D(2) receptors.
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Affiliation(s)
- D G Machado
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, 88040-900, Florianópolis-SC, Brazil
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Machado DG, Cunha MP, Neis VB, Balen GO, Colla A, Bettio LEB, Oliveira A, Pazini FL, Dalmarco JB, Simionatto EL, Pizzolatti MG, Rodrigues ALS. Antidepressant-like effects of fractions, essential oil, carnosol and betulinic acid isolated from Rosmarinus officinalis L. Food Chem 2012; 136:999-1005. [PMID: 23122155 DOI: 10.1016/j.foodchem.2012.09.028] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 07/15/2012] [Accepted: 09/04/2012] [Indexed: 10/27/2022]
Abstract
The aim of this study was to investigate the antidepressant-like effect of fractions from Rosmarinus officinalis L.: ethyl acetate 1 and 2 (AcOEt1 and 2), hexane (HEX), ethanolic (ET), and essential oil-free (EOF) fractions, as well as essential oil, the isolated compounds carnosol and betulinic acid in the tail suspension test, a predictive test of antidepressant activity. Swiss mice were acutely administered by oral route (p.o.) with fractions, essential oil or isolated compounds, 60 min before the tail suspension test or open-field test. All of them produced a significant antidepressant-like effect: AcOEt1, ET, EOF fractions and essential oil (0.1-100mg/kg, p.o); HEX (0.1-10mg/kg, p.o) and AcOEt2 fraction (0.1-1mg/kg, p.o), carnosol (0.01-0.1mg/kg, p.o.) isolated from the HEX fraction and betulinic acid (10mg/kg, p.o.), isolated from the AcOEt1 and AcOEt2 fractions. No psychostimulant effect was shown in the open-field test, indicating that the effects in the tail suspension test are specific. This study suggests that carnosol and betulinic acid could be responsible for the anti-immobility effect of extracts from R. officinalis.
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Affiliation(s)
- Daniele G Machado
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, 88040-900 Florianópolis-SC, Brazil
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Nucci C, Mazzardo-Martins L, Stramosk J, Brethanha LC, Pizzolatti MG, Santos ARS, Martins DF. Oleaginous extract from the fruits Pterodon pubescens Benth induces antinociception in animal models of acute and chronic pain. J Ethnopharmacol 2012; 143:170-178. [PMID: 22728247 DOI: 10.1016/j.jep.2012.06.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 06/12/2012] [Accepted: 06/12/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pterodon pubescens Benth is a medicinal plant commonly used for therapeutic purposes in folk medicine for rheumatic diseases' treatment. In the present work we analyzed the chemical composition of the oleaginous extract of P. pubescens Benth (OEPp) and extended the antinociceptive effect of OEPp evaluating its role on animal models of acute and chronic pain. MATERIALS AND METHODS The antinociceptive and antiedematogenic effects of OEPp (3-100mg/kg, i.g.) were evaluated in the formalin test; mechanical allodynia in the postoperative pain and complex regional pain syndrome type-I (CRPS-I) animal models; and thermal hyperalgesia was induced by plantar incision. Finally, we performed a phytochemical analysis of OEPp. RESULTS The chemical composition of OEPp was analyzed by mass spectrometry (GC/MS) and eight sesquiterpene compounds were identified, i.e. three major sesquiterpene (E-cariofilene, γ-muurolene, biciclogermacrene), and nine vouacapane diterpenes, four of which showed in major concentration (6α-acetoxyvouacapane, 6α,7β-dimetoxivouacapan-17-ene, 6α-acetoxy,7β-hidroxyvouacapane, 6α,7β-diacetoxycouacapane). Furthermore, the results of the present study demonstrate, for the first time, that the OEPp reduced mechanical allodynia in the postoperative pain and CRPS-I animal models. OEPp also increased the paw withdrawal latency in hot- and cold-plate tests in the postoperative pain model. In addition, the present work confirms and extends previous data from literature showing that systemic administration of OEPp caused significant inhibition against both phases of pain response to formalin intraplantar injection and edema formation. CONCLUSIONS Together, present and previous findings show that OEPp given intra-gastrically caused significant inhibition against both phases of formalin intraplantar injection and effectively inhibited mechanical and thermal hyperalgesia in the postoperative pain and CRPS-I animal models.
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Affiliation(s)
- Catharina Nucci
- Curso de Naturologia Aplicada, Unidade de Articulação da Saúde, Universidade do Sul de Santa Catarina, Pedra Branca, Palhoça, SC, Brazil
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Machado DG, Cunha MP, Neis VB, Balen GO, Colla AR, Grando J, Brocardo PS, Bettio LEB, Dalmarco JB, Rial D, Prediger RD, Pizzolatti MG, Rodrigues ALS. Rosmarinus officinalis L. hydroalcoholic extract, similar to fluoxetine, reverses depressive-like behavior without altering learning deficit in olfactory bulbectomized mice. J Ethnopharmacol 2012; 143:158-169. [PMID: 22721880 DOI: 10.1016/j.jep.2012.06.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 05/28/2012] [Accepted: 06/11/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rosemary, Rosmarinus officinalis L., has several therapeutic applications in folk medicine for the treatment of a wide range of diseases, including depression. AIM OF THE STUDY To evaluate the ability of Rosmarinus officinalis hydroalcoholic extract (ROHE), as compared to the positive control fluoxetine, to reverse behavioral (hyperactivity, anhedonic behavior and learning deficit in water maze) and biochemical alterations (serum glucose level and acetylcholinesterase, AChE, activity) induced by an animal model of depression, the olfactory bulbectomy (OB) in mice. MATERIALS AND METHODS Locomotor and exploratory behavior was assessed in the open-field, novel object and novel cage tests, anhedonic behavior was assessed in the splash test; cognitive deficits were evaluated in the water maze task. For the first set of experiments, ROHE (10-300 mg/kg) or fluoxetine (10mg/kg) was administered once daily (p.o.) for 14 days after OB and the behavioral tests were performed. For the second set of experiments, serum glucose and hippocampal and cerebrocortical AChE activity were determined in OB and SHAM-operated mice treated orally with ROHE (10mg/kg), fluoxetine (10mg/kg) or vehicle. RESULTS ROHE (10-300 mg/kg), similar to fluoxetine, reversed OB-induced hyperactivity, increased exploratory and anhedonic behavior. OB needed significantly more trials in the training session to acquire the spatial information, but they displayed a similar profile to that of SHAM mice in the test session (24h later), demonstrating a selective deficit in spatial learning, which was not reversed by ROHE or fluoxetine. A reduced serum glucose level and an increased hippocampal AChE activity were observed in bulbectomized mice; only the latter effect was reversed by fluoxetine, while both effects were reversed by ROHE. CONCLUSIONS ROHE exerted an antidepressant-like effect in bulbectomized mice and was able to abolish AchE alterations and hypoglycemia, but not spatial learning deficit induced by OB. Overall, results suggest the potential of Rosmarinus officinalis for the treatment of depression, validating the traditional use of this plant.
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Affiliation(s)
- Daniele G Machado
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, 88040-900 Florianópolis, SC, Brazil
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Soldi C, Moro AV, Pizzolatti MG, Correia CRD. Heck-Matsuda Arylation as a Strategy to Access Kavalactones Isolated from Polygala sabulosa, Piper methysticum, and Analogues. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200308] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Moresco HH, Queiroz GS, Pizzolatti MG, Brighente IMC. Chemical constituents and evaluation of the toxic and antioxidant activities of Averrhoa carambola leaves. Rev bras farmacogn 2012. [DOI: 10.1590/s0102-695x2011005000217] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bettio LEB, Machado DG, Cunha MP, Capra JC, Missau FC, Santos ARS, Pizzolatti MG, Rodrigues ALS. Antidepressant-like effect of extract from Polygala paniculata: involvement of the monoaminergic systems. Pharm Biol 2011; 49:1277-1285. [PMID: 22077163 DOI: 10.3109/13880209.2011.621958] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
CONTEXT Polygala paniculata Linnaeus (Polygalaceae) has shown neuroprotective effects, but there is no report about its antidepressant potential. OBJECTIVE The antidepressant-like effect of the hydroalcoholic extract from P. paniculata and some of the possible mechanisms involved in this effect were investigated in forced swimming test (FST). MATERIALS AND METHODS Mice received extract by oral route and were submitted to FST and open-field test. Animals were forced to swim and the total immobility time was registered (6-min period). A reduction in the immobility time is considered an antidepressant-like effect. In order to investigate the involvement of the monoaminergic systems, mice were treated with pharmacological antagonists before administration of the extract. RESULTS The acute administration of the hydroalcoholic extract from P. paniculata produced an antidepressant-like effect, since it significantly reduced the immobility time in FST (0.01-30 mg/kg) as compared to control group, without changing locomotor activity. Pretreatment of mice with yohimbine (1 mg/kg, i.p., α₂-adrenoceptor antagonist), propranolol (1 mg/kg, i.p., β-adrenoceptor antagonist), SCH23390 (0.05 mg/kg, s.c., dopamine D₁ receptor antagonist) or sulpiride (50 mg/kg, i.p., dopamine D₂ receptor antagonist) prevented the antidepressant-like effect of the extract in FST (30 mg/kg). Moreover, ketanserin (5 mg/kg, i.p., preferential 5-HT(2A) receptor antagonist) enhanced the effect of the extract in FST. DISCUSSION AND CONCLUSION The results of the present study indicate that the extract from P. paniculata has an antidepressant-like action that is likely mediated by an interaction with the serotonergic (5-HT2A receptors), noradrenergic (α₂ and β-receptor) and dopaminergic (D₁ and D₂ receptors) systems.
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Affiliation(s)
- Luis E B Bettio
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis-SC, Brazil
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Johann S, Mendes BG, Missau FC, de Resende MA, Pizzolatti MG. Antifungal activity of five species of Polygala. Braz J Microbiol 2011; 42:1065-75. [PMID: 24031724 PMCID: PMC3768791 DOI: 10.1590/s1517-838220110003000027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Revised: 10/13/2010] [Accepted: 05/16/2011] [Indexed: 11/22/2022] Open
Abstract
Crude extracts and fractions of five species of Polygala - P. campestris, P. cyparissias, P. paniculata, P. pulchella and P. sabulosa - were investigated for their in vitro antifungal activity against opportunistic Candida species, Cryptococcus gattii and Sporothrix schenckii with bioautographic and microdilution assays. In the bioautographic assays, the major extracts were active against the fungi tested. In the minimal concentration inhibitory (MIC) assay, the hexane extract of P. paniculata and EtOAc fraction of P. sabulosa showed the best antifungal activity, with MIC values of 60 and 30 μg/mL, respectively, against C. tropicalis, C. gattii and S. schenckii. The compounds isolated from P. sabulosa prenyloxycoumarin and 1,2,3,4,5,6-hexanehexol displayed antifungal activity against S. schenckii (with MICs of 125 μg/mL and 250 μg/mL, respectively) and C. gattii (both with MICs of 250 μg/mL). Rutin and aurapten isolated from P. paniculata showed antifungal activity against C. gattii with MIC values of 60 and 250 μg/mL, respectively. In the antifungal screening, few of the isolated compounds showed good antifungal inhibition. The compound α-spinasterol showed broad activity against the species tested, while rutin had the best activity with the lowest MIC values for the microorganisms tested. These two compounds may be chemically modified by the introduction of a substitute group that would alter several physico-chemical properties of the molecule, such as hydrophobicity, electronic density and steric strain.
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Affiliation(s)
- Susana Johann
- Departamento de Microbiologia, Universidade Federal de Minas Gerais , Belo Horizonte, MG , Brasil
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de Carvalho Tavares L, Johann S, Maria de Almeida Alves T, Guerra JC, Maria de Souza-Fagundes E, Cisalpino PS, Bortoluzzi AJ, Caramori GF, de Mattos Piccoli R, Braibante HTS, Braibante MEF, Pizzolatti MG. Quinolinyl and quinolinyl N-oxide chalcones: synthesis, antifungal and cytotoxic activities. Eur J Med Chem 2011; 46:4448-56. [PMID: 21816519 DOI: 10.1016/j.ejmech.2011.07.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 06/28/2011] [Accepted: 07/10/2011] [Indexed: 10/18/2022]
Abstract
A series of new 6-quinolinyl and quinolinyl N-oxide chalcones were efficiently prepared. All chalcones were tested by minimal inhibitory concentration (MIC) against three species of Candida, Cryptococcus gattii and Paracoccidioides brasiliensis. The effect of these compounds was also tested on the survival and growth of the human cancer cell lines UACC-62 (melanoma), MCF-7 (breast), TK-10 (renal) and leukemic cells, Jurkat and HL60. The compounds tested presented strong activity against P. brasiliensis, most importantly compound 4e. C. gattii also presented interesting susceptibility for compounds 5b and 5f. The cytotoxic activity showed that compounds 3c and 4e, presented the best activity against MCF-7 and TK-10. For leukemic cells the compounds 4f, 3g, 4g and 5g have shown the best activity.
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Franco JL, Posser T, Missau F, Pizzolatti MG, dos Santos ARS, Souza DO, Aschner M, Rocha JBT, Dafre AL, Farina M. Structure-activity relationship of flavonoids derived from medicinal plants in preventing methylmercury-induced mitochondrial dysfunction. Environ Toxicol Pharmacol 2010; 30:272-278. [PMID: 21127717 PMCID: PMC2992974 DOI: 10.1016/j.etap.2010.07.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In the present study, we investigated the potential protective effects of three flavonoids (myricetin, myricitrin and rutin) derived from medicinal plants against methyl mercury (MeHg)-induced mitochondrial dysfunction in vitro. Incubation of mouse brain mitochondria with MeHg induced a significant decrease in mitochondrial function, which was correlated with decreased glutathione (GSH) levels and increased generation of reactive oxygen species (ROS) and lipid peroxidation. The co-incubation of mouse brain mitochondria with myricetin or myricitrin caused a concentration-dependent decrease of MeHg-induced mitochondrial dysfunction and oxidative stress. The flavonoid rutin was ineffective in counteracting MeHg toxicity. Among the three tested flavonoids, myricetin was the most efficient in protecting against MeHg-induced mitochondrial dysfunction. Moreover, myricetin completely blocked MeHg-induced ROS formation and lipid peroxidation and partially prevented MeHg-induced GSH depletion. The ability of myricetin to attenuate MeHg-induced mitochondrial dysfunction and oxidative stress appears to be related to its higher scavenging capability when compared to myricitrin and rutin. Overall, the results suggest that MeHg-induced mitotoxicity is associated with oxidative stress. The ability of myricetin to prevent MeHg-induced oxidative damage in brain mitochondria renders this flavonoid a promising molecule for further in vivo studies in the search for potential antidotes to counteract MeHg-induced neurotoxicity.
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Affiliation(s)
- Jeferson L. Franco
- Departamento de Bioquímica Centro de Ciências Biológicas Universidade Federal de Santa Catarina, Florianópolis - SC, Brazil
- Campus São Gabriel, Universidade Federal do Pampa, São Gabriel - RS, Brazil
| | - Thais Posser
- Departamento de Bioquímica Centro de Ciências Biológicas Universidade Federal de Santa Catarina, Florianópolis - SC, Brazil
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria - RS, Brazil
| | - Fabiana Missau
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Florianópolis - SC, Brazil
| | - Moacir G. Pizzolatti
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Florianópolis - SC, Brazil
| | - Adair R. S. dos Santos
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas Universidade Federal de Santa Catarina, Florianópolis - SC, Brazil
| | - Diogo O. Souza
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre - RS, Brazil
| | - Michael Aschner
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - João B. T. Rocha
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria - RS, Brazil
| | - Alcir L. Dafre
- Departamento de Bioquímica Centro de Ciências Biológicas Universidade Federal de Santa Catarina, Florianópolis - SC, Brazil
| | - Marcelo Farina
- Departamento de Bioquímica Centro de Ciências Biológicas Universidade Federal de Santa Catarina, Florianópolis - SC, Brazil
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Capra JC, Cunha MP, Machado DG, Zomkowski AD, Mendes BG, Santos ARS, Pizzolatti MG, Rodrigues ALS. Antidepressant-like effect of scopoletin, a coumarin isolated from Polygala sabulosa (Polygalaceae) in mice: Evidence for the involvement of monoaminergic systems. Eur J Pharmacol 2010; 643:232-8. [DOI: 10.1016/j.ejphar.2010.06.043] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Accepted: 06/22/2010] [Indexed: 01/16/2023]
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Moreira ELG, Rial D, Duarte FS, De Carvalho CR, Horst H, Pizzolatti MG, Prediger RDS, Ribeiro-do-Valle RM. Central nervous system activity of the proanthocyanidin-rich fraction obtained from Croton celtidifolius in rats. J Pharm Pharmacol 2010; 62:1061-8. [DOI: 10.1111/j.2042-7158.2010.01124.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
Objectives
The aim of the present study was to evaluate the possible neurobehavioural effects in rats of the proanthocyanidin-rich fraction (PRF) isolated from the bark of Croton celtidifolius (Euphorbiaceae).
Methods
Adult Wistar rats were treated with the PRF (0.3–30 mg/kg) and evaluated in different behavioural paradigms classically used for the screening of drugs with psychoactive effects.
Key findings
Acute intraperitoneal (i.p.) administration of PRF decreased spontaneous locomotor activity (open field arena and activity cage), enhanced the duration of ethyl ether-induced hypnosis, increased the latency to the first convulsion induced by pentylenetetrazole (60 mg/kg, i.p.) and attenuated apomorphine-induced (0.5 mg/kg, i.p.) stereotyped behaviour. In lower doses, PRF (0.3 or 3 mg/kg, i.p.) increased the frequency of open arm entries in the elevated plus-maze test.
Conclusions
The present findings suggest that the systemic administration of PRF induces a wide spectrum of behavioural alterations in rats, consistent with the putative existence of hypnosedative, anticonvulsant and anxiolytic compounds.
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Affiliation(s)
- Eduardo L G Moreira
- Departamento de Farmacologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Daniel Rial
- Departamento de Farmacologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Filipe S Duarte
- Departamento de Farmacologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | | | - Heros Horst
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Moacir G Pizzolatti
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Rui D S Prediger
- Departamento de Farmacologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
- Centro de Neurociências Aplicadas (CeNAp), Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Boller S, Soldi C, Marques MCA, Santos EP, Cabrini DA, Pizzolatti MG, Zampronio AR, Otuki MF. Anti-inflammatory effect of crude extract and isolated compounds from Baccharis illinita DC in acute skin inflammation. J Ethnopharmacol 2010; 130:262-266. [PMID: 20452414 DOI: 10.1016/j.jep.2010.05.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
UNLABELLED ETHNOPHARMACOLOGYCAL RELEVANCE: The tea from the leaves of Baccharis illinita DC (Asteraceae family) is commonly used by the population as anti-inflammatory (including topically), protective gastric and anti-infectious. However, no studies have been done with this species to confirm its topical anti-inflammatory action. AIM This study evaluated he topical effects of crude extract of leaves (CE) and its active constituents in 12-O-tetradecanoylphorbol acetate (TPA)-induced ear oedema. METHODOLOGY CE and compounds effects were tested in commonly used models of TPA-, arachidonic acid (AA)- and capsaicin-ear oedema. Polymorphonuclear (PMN) cell migration was evaluated by mieloperoxidase and analyzed histologically. RESULTS CE (0.1-1 mg/ear) caused a dose-related inhibition of TPA-induced ear oedema and PMN influx similarly to that produced by topical application of the steroidal anti-inflammatory drug dexamethasone. The active constituents of the AcOEt fraction kaurenoic acid, alpha-spinasterol, oleanolic acid and baurenol also inhibited TPA-induced ear edema. Histological analysis of the ear of CE-treated animals confirmed the reduction of edema and of PMN infiltration. Both CE and the nosteroidal anti-inflammatory drug indomethacin inhibited the AA-induced ear oedema, but did not change capsaicin-induced oedema. CONCLUSION These results indicate that the CE and the active constituents have a topical anti-inflammatory effect and the possible mechanisms for the pharmacological effects are discussed.
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Affiliation(s)
- Shirley Boller
- Department of Pharmacology, Federal University Federal of Paraná, Curitiba, PR, Brazil
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Freitas AE, Budni J, Lobato KR, Binfaré RW, Machado DG, Jacinto J, Veronezi PO, Pizzolatti MG, Rodrigues ALS. Antidepressant-like action of the ethanolic extract from Tabebuia avellanedae in mice: evidence for the involvement of the monoaminergic system. Prog Neuropsychopharmacol Biol Psychiatry 2010; 34:335-43. [PMID: 20026371 DOI: 10.1016/j.pnpbp.2009.12.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 11/28/2009] [Accepted: 12/12/2009] [Indexed: 02/06/2023]
Abstract
The antidepressant-like effect of the ethanolic extract obtained from barks of Tabebuia avellanedae, a plant widely employed in folk medicine, was investigated in two predictive models of depression: forced swimming test (FST) and tail suspension test (TST) in mice. Additionally, the mechanisms involved in this antidepressant-like action and the effects of the association of the extract with the antidepressants fluoxetine, desipramine and bupropion in the TST were investigated. The extract from T. avellanedae produced an antidepressant-like effect, in the FST (100 mg/kg, p.o.) and in the TST (10-300 mg/kg, p.o.), without accompanying changes in ambulation when assessed in the open-field test. The anti-immobility effect of the extract (30 mg/kg, p.o.) in the TST was prevented by pre-treatment of mice with ketanserin (5 mg/kg, i.p., a preferential 5-HT(2A) receptor antagonist), prazosin (1 mg/kg, i.p., an alpha(1)-adrenoceptor antagonist), yohimbine (1 mg/kg, i.p., an alpha(2)-adrenoceptor antagonist), propranolol (2 mg/kg, i.p., a beta-adrenoceptor antagonist), sulpiride (50 mg/kg, i.p., a dopamine D(2) receptor antagonist) and SCH23390 (0.05 mg/kg, s.c., a dopamine D(1) receptor antagonist). The combined administration of a subeffective dose of WAY100635 (0.1 mg/kg, s.c., a selective 5-HT(1A) receptor antagonist) and a subeffective dose of the extract (1 mg/kg, p.o.) produced a significant reduction in the immobility time in the TST. In addition, the combination of fluoxetine (1 mg/kg, p.o.), desipramine (0.1 mg/kg, p.o.), or bupropion (1 mg/kg, p.o.) with a subeffective dose of the extract (1 mg/kg, p.o.) produced a synergistic antidepressant-like effect in the TST, without causing hyperlocomotion in the open-field test. It may be concluded that the extract from T. avellanedae produces an antidepressant-like effect in the FST and in the TST that is dependent on the monoaminergic system. Taken together, our results suggest that T. avellanedae deserves further investigation as a putative alternative therapeutic tool that could help the conventional pharmacotherapy of depression.
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Affiliation(s)
- Andiara E Freitas
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário-Trindade-88040-900, Florianópolis-SC, Brazil
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Freitas CS, Baggio CH, Finau J, Anginoni M, Pizzolatti MG, Santos ARS, Marques MCA. Inhibition of H+/K+ ATPase in the gastroprotective effect of Baccharis illinita DC. J Pharm Pharmacol 2010; 60:1105-10. [DOI: 10.1211/jpp.60.8.0017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
Baccharis illinita DC (Compositae) is used in folk medicine to treat gastric disturbances. Preliminary studies with other extracts of B. Illinita showed gastric protection against ethanol-, indometacin- and stress-induced ulcers and the inhibition of gastric secretion. Based on these data, the aim of this study was to verify the pathways involved in the inhibition of gastric secretion. The chloroform extract (CE) of flowers from B. illinita (3, 10, 30 and 100 mg kg−1 i.p.) tested on rats with pylorus ligature reduced the volume and the total acidity of gastric content by approximately 50% (ED50 = 69 mg kg−1). Treatment with CE (100 mg kg−1 i.p.) reduced the gastric total acidity stimulated by histamine, bethanechol and pentagastrin to 42%, 27% and 57% of that in the stimulated control group, respectively. The CE (10, 30 and 100 μM) inhibited H+/K+ ATPase activity in-vitro, with an IC50 of 37 μM. The isolated flavonoid luteolin (1, 3, 10 and 30 μM) also inhibited H+/K+ ATPase activity by 50%, at a dose of 30 μM. Our results suggest that the reduction in gastric secretion occurs through inhibition of H+/K+ ATPase, which is the final step in acid secretion and therefore one of the most important steps.
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Affiliation(s)
- Cristina S Freitas
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, 81531-990, PR, Brazil
| | - Cristiane H Baggio
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, 81531-990, PR, Brazil
| | - Jaqueline Finau
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, 81531-990, PR, Brazil
| | - Margano Anginoni
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, 81531-990, PR, Brazil
| | - Moacir G Pizzolatti
- Department of Chemistry, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Adair R S Santos
- Department of Physiological Sciences, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Maria C A Marques
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, 81531-990, PR, Brazil
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dos Santos AC, Baggio CH, Freitas CS, Lepieszynski J, Mayer B, Twardowschy A, Missau FC, dos Santos ÉP, Pizzolatti MG, Marques MCA. Gastroprotective activity of the chloroform extract of the roots from Arctium lappa L. J Pharm Pharmacol 2010; 60:795-801. [DOI: 10.1211/jpp.60.6.0016] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Arctium lappa L. is used in folk medicine as a diuretic, depurative and digestive stimulant and in dermatological conditions. The objective of this study was to evaluate the effect and the possible mechanisms involved in the gastroprotective effects of a chloroform extract (CE) of the roots from A. lappa and its fractions. Oral pretreatment with CE (10, 30 and 100 mgkg−1) significantly reduced gastric lesions induced by ethanol by 61%, 70% and 76%, respectively. Oral administration of CE (100 mgkg−1 per day for 7 days) reduced the chronic gastric ulceration induced by acetic acid by 52%. Intraduodenal CE (100, 300 and 600 mgkg−1) reduced the total acidity of gastric secretion by 22%, 22% and 33%, respectively, while i.p. administration (10, 30 and 100 mgkg−1) inhibited total acidity by 50%, 60% and 67%, respectively. In-vitro, CE inhibited H+, K+-ATPase activity with an EC50 of 53 μgmL−1 and fraction A (30 and 100 μgmL−1) reduced this by 48% and 89%, respectively. CE had no effect on gastrointestinal motility. CE (250 μgmL−1) and fraction B (100 and 250 μgmL−1) had free-radical scavenging ability, inhibiting 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical activity by 50%, 20% and 55%, respectively. Collectively, the results show that the CE protects animals from gastric lesions by reducing gastric acid secretion via inhibition of gastric H+, K+-ATPase.
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Affiliation(s)
- Ana C dos Santos
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Cristiane H Baggio
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Cristina S Freitas
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Juliana Lepieszynski
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Bárbara Mayer
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - André Twardowschy
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Fabiana C Missau
- Department of Chemistry, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Élide P dos Santos
- Department of Botany, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Moacir G Pizzolatti
- Department of Chemistry, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Maria C A Marques
- Department of Pharmacology, Sector of Biological Sciences, Universidade Federal do Paraná, Curitiba, PR, Brazil
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36
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Farina M, Franco JL, Ribas CM, Meotti FC, Missau FC, Pizzolatti MG, Dafre AL, Santos ARS. Protective effects of Polygala paniculata extract against methylmercury-induced neurotoxicity in mice. J Pharm Pharmacol 2010; 57:1503-8. [PMID: 16259784 DOI: 10.1211/jpp.57.11.0017] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Abstract
We have examined the possible protective effects of Polygala paniculata extract against methylmercury (MeHg)-induced neurotoxicity in adult mice. MeHg was diluted in drinking water (40 mg L−1, freely available) and the hydroalcoholic Polygala extract was diluted in a 150 mm NaCl solution and administered by gavage (100 mg kg−1 b.w., twice a day). After a two-week treatment, MeHg exposure significantly inhibited glutathione peroxidase and increased glutathione reductase activity, while the levels of thiobarbituric acid reactive substances were increased in the cerebral cortex and cerebellum. These alterations were prevented by administration of Polygala extract, except for glutathione reductase activity, which remained elevated in the cerebral cortex. Behavioural interference in the MeHg-exposed animals was evident through a marked deficit in the motor performance in the rotarod task, which was completely recovered to control levels by Polygala extract co-administration. This study has shown, for the first time, the in-vivo protective effects of Polygala extract against MeHg-induced neurotoxicity. In addition, our findings encourage studies concerning the beneficial effects of P. paniculata on neurological conditions related to excitotoxicity and oxidative stress.
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Affiliation(s)
- Marcelo Farina
- Departamento de Bioquímica, Centro de Cieências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, SC, Brazil.
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37
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Abstract
Piperaceae is a family of tropical plants known to have antifungal, antibacterial, tumour-inhibitory, antiviral, antioxidant, molluscicidal and leishmanicidal activities. In this work, extracts and fractions from aerial parts of Piper abutiloides (Piperaceae), a traditional medicinal plant, were evaluated against the fungal species Candida albicans, C. parapsilosis, C. krusei, C. glabrata, C. tropicalis, Cryptococcus neoformans and Sporothrix schenckii. The results have shown that the antifungal activity of this plant can be concentrated in the hexanic fraction after partitioning its hydroalcoholic extract between hexane and 90% aqueous methanol. The chromatographic fractionation of the bioactive part was monitored with a bioautographic assay using C. glabrata, and allowed the isolation of three antifungal compounds: pseudodillapiol, eupomatenoid-6 and conocarpan. These compounds presented different potencies against the fungi tested, with the strongest effect being observed for eupomatenoid-6 against C. glabrata, which presented a minimal inhibitory concentration value of 0.3 microg spot(-1). Conocarpan showed antifungal activity without apparent cytotoxic effect on normal human lymphocytes, as assessed by the proliferation assay with human peripheral blood mononuclear cells stimulated with phytohaemaglutinin. This work reveals for the first time the occurrence of these compounds in P. abutiloides and justifies further studies to clarify their mechanisms of action.
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Affiliation(s)
- S Johann
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte-MG, Brazil.
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38
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Boller S, Soldi C, Marques MCA, Santos EP, Cabrini DA, Pizzolatti MG, Zampronio AR, Otuki MF. WITHDRAWN: Comments on "Anti-inflammatory effect of crude extract and isolated compounds from Baccharis illinita DC in acute skin inflammation". J Ethnopharmacol 2009:S0378-8741(09)00525-X. [PMID: 19712737 DOI: 10.1016/j.jep.2009.08.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Revised: 08/06/2009] [Accepted: 08/17/2009] [Indexed: 05/28/2023]
Abstract
This article has been withdrawn at the request of the editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Shirley Boller
- Department of Pharmacology, Federal University Federal of Paraná, Curitiba, PR, Brazil
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39
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Machado DG, Bettio LEB, Cunha MP, Capra JC, Dalmarco JB, Pizzolatti MG, Rodrigues ALS. Antidepressant-like effect of the extract of Rosmarinus officinalis in mice: involvement of the monoaminergic system. Prog Neuropsychopharmacol Biol Psychiatry 2009; 33:642-50. [PMID: 19286446 DOI: 10.1016/j.pnpbp.2009.03.004] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2008] [Revised: 02/13/2009] [Accepted: 03/03/2009] [Indexed: 10/21/2022]
Abstract
Rosemary, Rosmarinus officinalis L. (Labiatae) has several therapeutic applications in folk medicine in curing or managing a wide range of diseases, including depression. In this study, the effect of the hydroalcoholic extract of the stems and leaves of this plant was investigated in two behavioral models, the forced swimming test (FST) and tail suspension test (TST) in mice. The extract of R. officinalis produced an antidepressant-like effect, since the acute treatment of mice with the extract by p.o. route significantly reduced the immobility time in the FST (100 mg/kg) and TST (10-100 mg/kg), as compared to a control group, without accompanying changes in ambulation in the open-field test. Moreover, the repeated administration (14 days) of the hydroalcoholic extract of R. officinalis by p.o. route also produced an antidepressant-like effect in the TST (100-300 mg/kg). The pretreatment of mice with p-chlorophenylalanine (PCPA, 100 mg/kg, i.p., an inhibitor of serotonin synthesis, for 4 consecutive days), NAN-190 (0.5 mg/kg, i.p., a 5-HT(1A) receptor antagonist), ketanserin (5 mg/kg, i.p., a 5-HT(2A) receptor antagonist), 1-(m-chlorophenyl) biguanide (mCPBG, 10 mg/kg, i.p., a 5-HT(3) receptor agonist), prazosin (1 mg/kg, i.p., an alpha(1-)adrenoceptor antagonist), SCH23390 (0.05 mg/kg, s.c., a dopamine D(1) receptor antagonist) or sulpiride (50 mg/kg, i.p., a dopamine D(2) receptor antagonist), but not yohimbine (1 mg/kg, i.p., an alpha(2-)adrenoceptor antagonist) was able to reverse the anti-immobility effect of the extract (10 mg/kg, p.o.) in the TST. The combination of MDL72222, (0.1 mg/kg, i.p., a 5-HT(3) receptor antagonist) with a sub-effective dose of the extract of R. officinalis (1 mg/kg, p.o.) produced an anti-immobility effect in the TST. The results suggest that the antidepressant action of the extract of R. officinalis is mediated by an interaction with the monoaminergic system and that this plant should be further investigated as an alternative therapeutic approach for the treatment of depression.
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Affiliation(s)
- Daniele G Machado
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Brazil
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Pizzolatti MG, Mendes BG, Soldi C, Missau FC, Bortoluzzi JH, Carasek E. Analysis of Volatile Compounds Released From Flowers and Roots ofPolygala cyparissiasandPolygala paniculataby Headspace/SPME. Journal of Essential Oil Research 2009. [DOI: 10.1080/10412905.2009.9700163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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41
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Freitas CS, Baggio CH, dos Santos AC, Mayer B, Twardowschy A, Luiz AP, Marcon R, Soldi C, Pizzolatti MG, dos Santos EP, Marques MCA, Santos ARS. Antinociceptive Properties of the Hydroalcoholic Extract, Fractions and Compounds Obtained from the Aerial Parts ofBaccharis illinitaDC in Mice. Basic Clin Pharmacol Toxicol 2009; 104:285-92. [DOI: 10.1111/j.1742-7843.2008.00367.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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42
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Magina MDA, Dalmarco EM, Wisniewski A, Simionatto EL, Dalmarco JB, Pizzolatti MG, Brighente IMC. Chemical composition and antibacterial activity of essential oils of Eugenia species. J Nat Med 2009; 63:345-50. [DOI: 10.1007/s11418-009-0329-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Accepted: 02/09/2009] [Indexed: 11/24/2022]
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43
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Lapa FDR, Gadotti VM, Missau FC, Pizzolatti MG, Marques MCA, Dafré AL, Farina M, Rodrigues ALS, Santos ARS. Antinociceptive properties of the hydroalcoholic extract and the flavonoid rutin obtained from Polygala paniculata L. in mice. Basic Clin Pharmacol Toxicol 2009; 104:306-15. [PMID: 19281602 DOI: 10.1111/j.1742-7843.2008.00365.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The present study examined the antinociceptive effects of a hydroalcoholic extract of Polygala paniculata in chemical and thermal behavioural models of pain in mice. The antinociceptive effects of hydroalcoholic extract was evaluated in chemical (acetic-acid, formalin, capsaicin, cinnamaldehyde and glutamate tests) and thermal (tail-flick and hot-plate test) models of pain or by biting behaviour following intratecal administration of both ionotropic and metabotropic agonists of excitatory amino acids receptors glutamate and cytokines such as interleukin-1beta (IL-1beta) and tumour necrosis factor-alpha (TNF-alpha) in mice. When given orally, hydroalcoholic extract (0.001-10 mg/kg), produced potent and dose-dependent inhibition of acetic acid-induced visceral pain. In the formalin test, the hydroalcoholic extract (0.0001-0.1 mg/kg orally) also caused significant inhibition of both the early (neurogenic pain) and the late (inflammatory pain) phases of formalin-induced licking. However, it was more potent and efficacious in relation to the late phase of the formalin test. The capsaicin-induced nociception was also reduced at a dose of only 1.0 mg/kg orally. The hydroalcoholic extract significantly reduced the cinnamaldehyde-induced nociception at doses of 0.01, 0.1 and 1.0 mg/kg orally. Moreover, the hydroalcoholic extract (0.001-1.0 mg/kg orally) caused significant and dose-dependent inhibition of glutamate-induced pain. However, only rutin, but not phebalosin or aurapten, isolated from P. paniculata, administered intraperitoneally to mice, produced dose-related inhibition of glutamate-induced pain. Furthermore, the hydroalcoholic extract (0.1-100 mg/kg orally) had no effect in the tail-flick test. On the other hand, the hydroalcoholic extract caused a significant increase in the latency to response at a dose of 10 mg/kg orally, in the hot-plate test. The hydroalcoholic extract (0.1 mg/kg orally) antinociception, in the glutamate test, was neither affected by intraperitoenal treatment of animals with l-arginine (precursor of nitric oxide, 600 mg/kg) and naloxone (opioid receptor antagonist, 1 mg/kg) nor associated with non-specific effects such as muscle relaxation or sedation. In addition, oral administration of hydroalcoholic extract produced a great inhibition of the pain-related behaviours induced by intrathecal injection of glutamate, N-methyl-D-aspartate (NMDA), IL-1beta and TNF-alpha, but not by alpha-amino-3-hydroxy-5-methyl-isoxazole-4-propionic acid (AMPA), kainate or trans-1-amino-1.3-cyclopentanediocarboxylic acid (trans-ACPD). Together, our results suggest that inhibition of glutamatergic ionotropic receptors, may account for the antinociceptive action reported for the hydroalcoholic extract from P. paniculata in models of chemical pain used in this study.
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Affiliation(s)
- Fernanda da R Lapa
- Department of Pharmacology, Center of Biological Sciences, Federal University of Paraná, Curitiba, 88015-420 PR, Brazil
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44
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Martins RDP, Braga HDC, da Silva AP, Dalmarco JB, de Bem AF, dos Santos ARS, Dafre AL, Pizzolatti MG, Latini A, Aschner M, Farina M. Synergistic neurotoxicity induced by methylmercury and quercetin in mice. Food Chem Toxicol 2008; 47:645-9. [PMID: 19141311 DOI: 10.1016/j.fct.2008.12.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 11/10/2008] [Accepted: 12/17/2008] [Indexed: 11/19/2022]
Abstract
Methylmercury (MeHg) is a highly neurotoxic pollutant, whose mechanisms of toxicity are related to its pro-oxidative properties. A previous report showed under in vivo conditions the neuroprotective effects of plants of the genus Polygala against MeHg-induced neurotoxicity. Moreover, the flavonoid quercetin, isolated from Polygala sabulosa, displayed beneficial effects against MeHg-induced oxidative damage under in vitro conditions. In this study, we sought for potential beneficial effects of quercetin against the neurotoxicity induced by MeHg in Swiss female mice. Animals were divided into six experimental groups: control, quercetin low dose (5 mg/kg), quercetin high dose (50 mg/kg), MeHg (40 mg/L, in tap water), MeHg+quercetin low dose, and MeHg+quercetin high dose. After the treatment (21 days), a significant motor deficit was observed in MeHg+quercetin groups. Biochemical parameters related to oxidative stress showed that the simultaneous treatment with quercetin and MeHg caused a higher cerebellar oxidative damage when compared to the individual exposures. MeHg plus quercetin elicited a higher cerebellar lipid peroxidation than MeHg or quercetin alone. The present results indicate that under in vivo conditions quercetin and MeHg cause additive pro-oxidative effects toward the mice cerebellum and that such phenomenon is associated with the observed motor deficit.
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Affiliation(s)
- Roberta de P Martins
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Trindade, 88040-900 Florianópolis, SC, Brazil
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45
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Ribas CM, Meotti FC, Nascimento FP, Jacques AV, Dafre AL, Rodrigues ALS, Farina M, Soldi C, Mendes BG, Pizzolatti MG, Santos ARS. Antinociceptive Effect of the Polygala sabulosa Hydroalcoholic Extract in Mice: Evidence for the Involvement of Glutamatergic Receptors and Cytokine Pathways. Basic Clin Pharmacol Toxicol 2008; 103:43-7. [DOI: 10.1111/j.1742-7843.2008.00245.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Pizzolatti MG, Mendes BG, Cunha Jr A, Soldi C, Koga AH, Eger I, Grisard EC, Steindel M. Trypanocidal activity of coumarins and styryl-2-pyrones from Polygala sabulosa A.W. Bennett (Polygalaceae). Rev bras farmacogn 2008. [DOI: 10.1590/s0102-695x2008000200006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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47
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Johann S, Silva DL, Martins CVB, Zani CL, Pizzolatti MG, Resende MA. Inhibitory effect of extracts from Brazilian medicinal plants on the adhesion of Candida albicans to buccal epithelial cells. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9768-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Johann S, Oliveira VLD, Pizzolatti MG, Schripsema J, Braz-Filho R, Branco A, Smânia A. Antimicrobial activity of wax and hexane extracts from Citrus spp. peels. Mem Inst Oswaldo Cruz 2008; 102:681-5. [PMID: 17923995 DOI: 10.1590/s0074-02762007005000087] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2006] [Accepted: 07/16/2007] [Indexed: 11/21/2022] Open
Abstract
Antibacterial and antifungal properties of wax and hexane extracts of Citrus spp. peels were tested using bioautographic and microdilution techniques against three plant pathogenic fungi (Penicillium digitatum, Curvularia sp., and Colletotrichum sp.), two human pathogens (Trichophyton mentagrophytes and Microsporum canis), and two opportunistic bacteria (Escherichia coli and Staphylococcus aureus). Two polymethoxylated flavonoids and a coumarin derivative, were isolated and identified from peel extracts, which presented antimicrobial activity especially against M. canis and T. mentagrophytes: 4',5,6,7,8-pentamethoxyflavone (tangeritin) and 3',4',5,6,7,8-hexamethoxyflavone (nobiletin) from C. reticulata; and 6,7-dimethoxycoumarin (also known as escoparone, scoparone or scoparin) from C. limon.
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Affiliation(s)
- Susana Johann
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Florianópolis, SC, Brasil.
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49
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Zanatta L, Rosso A, Folador P, Figueiredo MSRB, Pizzolatti MG, Leite LD, Silva FRMB. Insulinomimetic effect of kaempferol 3-neohesperidoside on the rat soleus muscle. J Nat Prod 2008; 71:532-535. [PMID: 18303854 DOI: 10.1021/np070358+] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A stimulatory effect of kaempferol 3-neohesperidoside ( 1) on glucose uptake (35% and 21%) was observed when the rat soleus muscle was incubated with 1 and 100 nM of this flavonoid glycoside, respectively. The concentration-response curve of insulin showed a stimulatory effect at 3.5 and 7.0 nM (42% and 50%) on glucose uptake when compared with the control group. The effect of 1 on glucose uptake was completely nullified by pretreatment with LY294002, an inhibitor of phosphoinositide 3-kinase (PI3K), and RO318220, an inhibitor of protein kinase C (PKC). However, no significant change occurred on glucose uptake stimulated by 1 when muscles were pretreated with PD98059, an inhibitor of mitogen-activated protein kinase (MEK), and cycloheximide, an inhibitor of protein synthesis. Compound 1 and insulin (7 nM) did not show a synergistic effect on glucose uptake. Additionally, 100 mg/kg of 1 by oral gavage was able to increase glycogen content in the muscle. These results suggest that 1 stimulates glucose uptake in the rat soleus muscle via the PI3K and PKC pathways and, at least in part, independently of MEK pathways and the synthesis of new glucose transporters.
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Affiliation(s)
- Leila Zanatta
- Departamento de Bioquímica, Campus Universitário, Bairro Trindade, Florianópolis, SC, Brazil
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50
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Meotti FC, Senthilmohan R, Harwood DT, Missau FC, Pizzolatti MG, Kettle AJ. Myricitrin as a substrate and inhibitor of myeloperoxidase: implications for the pharmacological effects of flavonoids. Free Radic Biol Med 2008; 44:109-20. [PMID: 17963707 DOI: 10.1016/j.freeradbiomed.2007.09.017] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Revised: 08/31/2007] [Accepted: 09/28/2007] [Indexed: 10/22/2022]
Abstract
Flavonoids are increasingly being ingested by the general population as chemotherapeutic and anti-inflammatory agents. They are potentially toxic because of their conversion to free radicals and reactive quinones by peroxidases. Little detailed information is available on how flavonoids interact with myeloperoxidase, which is the predominant peroxidase present at sites of inflammation. This enzyme uses hydrogen peroxide to oxidize chloride to hypochlorous acid, as well as to produce an array of reactive free radicals from organic substrates. We investigated how the flavonoid myricitrin is oxidized by myeloperoxidase and how it affects the activities of this enzyme. Myricitrin was readily oxidized by myeloperoxidase in the presence of hydrogen peroxide. Its main oxidation product was a dimer that underwent further oxidation. In the presence of glutathione, myricitrin was oxidized to a hydroquinone that was conjugated to glutathione. When myeloperoxidase oxidized myricitrin and related flavonoids it became irreversibly inactivated. The number of hydroxyl groups in the B ring of the flavonoids and the presence of a free hydroxyl m-phenol group in the A ring were important for the inhibitory effects. Less enzyme inactivation occurred in the presence of chloride. Neutrophils also oxidized myricitrin to dimers in a reaction that was partially dependent on myeloperoxidase. Myricitrin did not affect the production of hypochlorous acid by neutrophils. We conclude that myricitrin will be oxidized by neutrophils at sites of inflammation to produce reactive free radicals and quinones. It is unlikely to affect hypochlorous acid production by neutrophils.
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Affiliation(s)
- Flavia Carla Meotti
- Free Radical Research Group, University of Otago Christchurch, Christchurch, New Zealand.
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