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de Souza ILL, Barros BC, Ferreira EDS, Queiroga FR, Vasconcelos LHC, Toscano LDLT, Silva AS, da Silva PM, Cavalcante FDA, da Silva BA. Supplementation with Spirulina platensis Prevents Damage to Rat Erections in a Model of Erectile Dysfunction Promoted by Hypercaloric Diet-Induced Obesity. Mar Drugs 2022; 20:md20080467. [PMID: 35892935 PMCID: PMC9332348 DOI: 10.3390/md20080467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 01/27/2023] Open
Abstract
Erectile dysfunction (ED) is the inability to achieve and/or maintain a penile erection sufficient for sexual satisfaction. Currently, many patients do not respond to the pharmacotherapy. The effects of a supplementation with Spirulina platensis, were evaluated in a model of ED induced by hypercaloric diet consumption. Wistar rats were divided into groups fed with standard diet (SD) or hypercaloric diet (HD) and supplemented with this alga at doses of 25, 50 or 100 mg/kg. Experimental adiposity parameters and erectile function were analyzed. In SD groups, Spirulina platensis reduced food intake, final body mass and adiposity index, and increased the total antioxidant capacity (TAC) of adipose tissue. However, no change was observed in erectile function. In the HD group, without Spirulina supplementation, a decrease in food intake was observed, in addition to an increase of final body mass, weight gain, adipose reserves, and adiposity index. Additionally, reduction in the number and increase in the latency of penile erection and adipose malondialdehyde levels, as well as a reduction in TCA was noted. Furthermore, cavernous contractility was increased, and the relaxing response was decreased. Interestingly, these deleterious effects were prevented by the algae at doses of 25, 50 and/or 100 mg/kg. Therefore, the supplementation with S. platensis prevents damages associated to a hypercaloric diet consumption and emerges as an adjuvant the prevention of ED.
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Affiliation(s)
- Iara Leão Luna de Souza
- Departamento de Ciências Biológicas e Saúde, Universidade Estadual de Roraima, Boa Vista 69306-530, RR, Brazil
- Curso de Farmácia, Centro Universitário Estácio da Amazônia, Boa Vista 69306-530, RR, Brazil
- Correspondence: ; Tel.: +55-83-98741-9057
| | - Bárbara Cavalcanti Barros
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (B.C.B.); (E.d.S.F.); (F.R.Q.); (L.H.C.V.); (F.d.A.C.); (B.A.d.S.)
| | - Elba dos Santos Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (B.C.B.); (E.d.S.F.); (F.R.Q.); (L.H.C.V.); (F.d.A.C.); (B.A.d.S.)
| | - Fernando Ramos Queiroga
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (B.C.B.); (E.d.S.F.); (F.R.Q.); (L.H.C.V.); (F.d.A.C.); (B.A.d.S.)
| | - Luiz Henrique César Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (B.C.B.); (E.d.S.F.); (F.R.Q.); (L.H.C.V.); (F.d.A.C.); (B.A.d.S.)
- Centro de Ciências da Saúde, Departamento de Fisiologia e Patologia, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Lydiane de Lima Tavares Toscano
- Centro de Ciências da Saúde, Departamento de Educação Física, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (L.d.L.T.T.); (A.S.S.)
| | - Alexandre Sérgio Silva
- Centro de Ciências da Saúde, Departamento de Educação Física, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (L.d.L.T.T.); (A.S.S.)
| | - Patrícia Mirella da Silva
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil;
| | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (B.C.B.); (E.d.S.F.); (F.R.Q.); (L.H.C.V.); (F.d.A.C.); (B.A.d.S.)
- Centro de Ciências da Saúde, Departamento de Fisiologia e Patologia, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Bagnólia Araújo da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil; (B.C.B.); (E.d.S.F.); (F.R.Q.); (L.H.C.V.); (F.d.A.C.); (B.A.d.S.)
- Centro de Ciências da Saúde, Departamento de Ciências Farmacêuticas, Universidade Federal da Paraíba, João Pessoa 58051-900, PB, Brazil
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de Souza ILL, Ferreira EDS, Vasconcelos LHC, Cavalcante FDA, da Silva BA. Erectile Dysfunction: Key Role of Cavernous Smooth Muscle Cells. Front Pharmacol 2022; 13:895044. [PMID: 35865945 PMCID: PMC9294450 DOI: 10.3389/fphar.2022.895044] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/13/2022] [Indexed: 11/28/2022] Open
Abstract
Erectile dysfunction is increasingly affecting men, from the elderly to young adults, being a sexual disorder related to the inability to generate or maintain a penile erection. This disorder is related to psychosocial factors such as anxiety, depression, and low self-esteem, to organic factors such as the presence of preexisting conditions like hypertension, diabetes and dyslipidemia. The pathophysiology of the disease is related to changes in the neurotransmission of the autonomic or the non-cholinergic non-adrenergic nervous system, as well as the release of local mediators, such as thromboxane A2 and endothelin, and hormonal action. These changes lead to impaired relaxation of cavernous smooth muscle, which reduces local blood flow and impairs penile erection. Currently, therapy is based on oral vasodilation, such as sildenafil, tadalafil, vardenafil and iodenafil, or by direct administration of these agents into the corpus cavernosum or by intraurethral route, such as alprostadil and papaverine. Despite this, studies that consolidate the understanding of its pathophysiological process contribute to the discovery of new more efficient drugs for the treatment of erectile dysfunction. In this sense, in the present work an extensive survey was carried out of the mechanisms already consolidated and the most recent ones related to the development of erectile dysfunction.
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Affiliation(s)
- Iara Leão Luna de Souza
- Departamento de Ciências Biológicas e da Saúde, Universidade Estadual de Roraima, Boa Vista, Brazil
| | - Elba dos Santos Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Luiz Henrique César Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
- *Correspondence: Fabiana de Andrade Cavalcante,
| | - Bagnólia Araújo da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
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Ferreira SRD, Pessoa RF, Figueiredo IAD, Lima JPM, de Moura TMCF, Bezerra CO, de Oliveira Martins AM, de Carvalho LM, Madruga MS, Cavalcante HC, de Souza Aquino J, de Brito Alves JL, Alves AF, Vasconcelos LHC, de Andrade Cavalcante F. Functional and morphologic dysfunctions in the airways of rats submitted to an experimental model of obesity-exacerbated asthma. Sci Rep 2022; 12:9540. [PMID: 35681069 PMCID: PMC9184493 DOI: 10.1038/s41598-022-13551-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/25/2022] [Indexed: 12/01/2022] Open
Abstract
The obesity-exacerbated asthma phenotype is characterized by more severe asthma symptoms and glucocorticoid resistance. The aim of this study was to standardize an obesity-exacerbated asthma model by a high glycemic level index (HGLI) diet and ovalbumin (OVA) sensitization and challenges in Wistar rats. Animals were divided into groups: control (Ctrl), obese (Ob), asthmatic (Asth), obese asthmatic (Ob + Asth) and obese asthmatic treated with dexamethasone (Ob + Asth + Dexa), and in vivo and in vitro functional and morphological parameters were measured. After HGLI consumption, there was an increase in body weight, fasting blood glucose, abdominal circumferences, body mass index and adiposity index. Respiratory function showed a reduction in pulmonary tidal volume and ventilation. In isolated tracheas, carbachol showed an increase in contractile efficacy in the Ob, Ob + Asth and Ob + Asth + Dexa, but mostly on Ob + Asth. Histological analysis of lungs showed peribronchovascular inflammation and smooth muscle hypertrophy and extracellular remodeling on Ob + Asth and Ob + Asth + Dexa. An obesity-exacerbated asthma model was successfully established. Therefore, this model allows further molecular investigations and the search for new therapies for the treatment and relief of symptoms of patients with obesity-induced resistant asthma.
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Affiliation(s)
- Sarah Rebeca Dantas Ferreira
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.,Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Rayane Fernandes Pessoa
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.,Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Indyra Alencar Duarte Figueiredo
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.,Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - João Pedro Moura Lima
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | | | - Cleyton Oliveira Bezerra
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | | | - Leila Moreira de Carvalho
- Departamento de Engenharia de Alimentos, Centro de Tecnologia, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Marta Suely Madruga
- Departamento de Engenharia de Alimentos, Centro de Tecnologia, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | | | - Jailane de Souza Aquino
- Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.,Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - José Luiz de Brito Alves
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Adriano Francisco Alves
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.,Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Cidade Universitária, João Pessoa, PB, Brazil
| | - Luiz Henrique César Vasconcelos
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, PB, Brazil. .,Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil. .,Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Cidade Universitária, João Pessoa, PB, Brazil.
| | - Fabiana de Andrade Cavalcante
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.,Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.,Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Cidade Universitária, João Pessoa, PB, Brazil
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Pessoa RF, Duarte Figueiredo IA, Dantas Ferreira SR, Lima de Farias Cavalcanti Silva AR, Marinho Paiva RL, Cordeiro LV, de Oliveira Lima E, Cabrera SP, Sarmento Silva TM, de Andrade Cavalcante F. Investigation of ethnomedicinal use of Commiphora leptophloeos (Mart.) J. B. Gillett (Burseraceae) in treatment of diarrhea. J Ethnopharmacol 2021; 268:113564. [PMID: 33166628 DOI: 10.1016/j.jep.2020.113564] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 10/07/2020] [Accepted: 11/05/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Commiphora leptophloeos (Mart.) J.B. Gillett, popularly known as "imburana", "imburana-de-cheiro" or "imburana-de-espinho", has been used in folk medicine for the treatment of gastrointestinal diseases, such as diarrhea. The indian tribes "Kairir-Shokó and shokó use the bark to treat diarrhea. However, there is no scientific evidence to justify the therapeutic use of this species. AIM OF THE STUDY To investigate the ethnomedicinal use of Commiphora leptophloeos, with respect to the antimicrobial, antisecretory, antimotility and antispasmodic activities of the crude ethanolic extract obtained from its leaves (CL-EtOHL) and the mechanism underlying this action in rodents. MATERIAL AND METHODS In the evaluation of antibacterial and antifungal activities was determined the minimum inhibitory concentration (MIC) of the extract, against different strains of bacteria and fungi. All experimental protocols were approved by the Animal Ethics Committee of the Federal University of Paraíba (045/2016). In addition, behavioral screening and acute toxicity assessment of CL-EtOHL were performed in female mice (n = 6). In the investigation of antidiarrheal activity (n = 6), frequency of defecation and number of liquid stools, were classified during 4 h, and intestinal fluid and transit were measured. In addition, the antispasmodic effect on rat ileum (n = 5) was also investigated. RESULTS The ethanolic extract is rich in flavonoids and the main were identified as C-glycosylated flavonoids (isoorientin, orientin, and vitexin). In the evaluation of antimicrobial and antifungal activity, the extract showed moderate efficacy only against the tested strains of Candida krusei ATCC-6258, Candida parapsilosis ATCC-22019 and Candida glabrata ATCC-90030. The extract had no toxic effect until 2000 mg/kg. In castor oil-induced diarrhea, CL-EtOHL inhibited, in a dose-dependent manner, both total defecation frequency (ED50 = 380.4 ± 145.4 mg/kg) and the number of watery stools (ED50 = 151.2 ± 76.3 mg/kg). The extract showed no effect on fluid accumulation or normal intestinal transit. On the other hand, when the animals were pretreated with castor oil, the extract decreased the distance traveled by the activated charcoal (ED50 = 177.0 ± 50.3 mg/kg). In the investigation of antispasmodic effect, CL-EtOHL antagonized the contractions induced by KCl 30 mM (IC50 = 208.2 ± 25.9 μg/mL) and CCh 10-6 M (IC50 = 95. ± 22.0 μg/mL). To verify the participation of muscarinic receptors in this effect, cumulative carbachol curves were performed in the absence and presence of the extract, and a non-competitive pseudo-irreversible antagonism of these receptors was observed. CONCLUSION The data indicate that ethanol extract obtained from the leaves of Commiphora leptophloeos has an antidiarrheal effect due to inhibition of the intestinal motility and antispasmodic effect, through the antagonism of muscarinic receptors. In addition, we suggest that flavonoids isolated from CL-EtOHL may be responsible for antidiarrheal activity of this extract. This explains its ethnomedicinal use in the treatment of diarrhea.
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Affiliation(s)
- Rayane Fernandes Pessoa
- Programa de Pós-graduação Em Produtos Naturais e Sintéticos Bioativos/Universidade Federal da Paraíba, Brazil
| | | | | | | | | | - Laísa Vilar Cordeiro
- Programa de Pós-graduação Em Produtos Naturais e Sintéticos Bioativos/Universidade Federal da Paraíba, Brazil
| | - Edeltrudes de Oliveira Lima
- Programa de Pós-graduação Em Produtos Naturais e Sintéticos Bioativos/Universidade Federal da Paraíba, Brazil; Departamento de Ciências Farmacêuticas/Universidade Federal da Paraíba, Brazil
| | | | | | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação Em Produtos Naturais e Sintéticos Bioativos/Universidade Federal da Paraíba, Brazil; Departamento de Fisiologia e Patologia/Universidade Federal da Paraíba, Brazil.
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Pereira JC, Figueiredo IAD, de Oliveira FRMB, Ferreira SRD, Aires Moreno GT, da Silva TMS, Pinheiro UDS, Santos BVDO, da Silva BA, Cavalcante FDA. Oceanapia magna Sponge Presents Dual Effect on the Gastrointestinal Motility of Rodents: In Vitro and In Vivo Assays. Front Pharmacol 2021; 11:572574. [PMID: 33424588 PMCID: PMC7793637 DOI: 10.3389/fphar.2020.572574] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 11/23/2020] [Indexed: 11/13/2022] Open
Abstract
Oceanapia magna Santos-Neto, Nascimento, Cavalcanti and Pinheiro sponges are distributed across tropical worldwide seas. Some studies of marine products have shown interesting activities in smooth muscle models. Hence, we assessed the effect of the ethanolic extract of Oceanapia magna. (OC-EtOH) on acute toxicity and gastrointestinal motility (in vitro and in vivo) in rodent models. On guinea pig ileum, OC-EtOH induced a concentration dependent contraction on basal tonus, which was not inhibited by atropine, but in the presence of pyrilamine or verapamil, the effect was antagonized. Contrastingly, on KCl- or histamine-induced contractions, OC-EtOH presented a transient contraction followed by a concentration-dependent relaxation. Moreover, OC-EtOH presented a relaxant profile on cumulative curves to CaCl2 and tonic contraction induced by S-(-)-BayK8644, through Cav blockade. The acute toxicity assay showed that OC-EtOH (2,000 mg/kg, p.o.) did not present any sign of toxicity in female mice. Additionally, OC-EtOH presented antidiarrheal effect in mice, increased the intestinal normal transit and reduced the castor oil-induced intestinal transit. Thus, OC-EtOH presented a dual effect on guinea pig ileum promoting contraction through activation of H1 and CaV, and relaxation through CaV blockade, besides the effect on upper gastrointestinal transit in mice, showing a potential medicinal use of this sponge in intestinal diseases such as diarrhea.
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Affiliation(s)
- Joedna Cavalcante Pereira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | | | - Sarah Rebeca Dantas Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | | | | | - Barbara Viviana de Oliveira Santos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil.,Departmento de Ciências Farmacêuticas, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Bagnólia Araújo da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil.,Departmento de Ciências Farmacêuticas, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil.,Departamento de Fisiologia e Patologia, Universidade Federal da Paraíba, João Pessoa, Brazil
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de Souza ILL, de Vasconcelos MA, da Silva ADS, Silva PCB, Veloso CAG, de Araújo DIAF, Costa VCDO, Pessôa HLF, Tavares JF, da Silva MS, da Silva BA, Cavalcante FDA. Toxicological and Pharmacological Activities of Leptohyptis macrostachys (Benth.) Harley and J.F.B.Pastore (Lamiaceae) on Intestinal Smooth Muscle. Front Pharmacol 2020; 11:1042. [PMID: 32754035 PMCID: PMC7366869 DOI: 10.3389/fphar.2020.01042] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/26/2020] [Indexed: 11/13/2022] Open
Abstract
Leptohyptis macrostachys, previously known as Hyptis macrostachys Benth., is used in folk medicine to relieve the symptoms of asthma, cough, and bronchitis. Recently, we showed that the ethanol extract obtained from Leptohyptis macrostachys has selective spasmolytic activity on guinea pig ileum. Therefore, the aim of this study was to characterize the spasmolytic mechanism of this extract, investigated whether it presents toxicological and antidiarrheal activities. Therefore, the crude ethanolic extract of Leptohyptis macrostachys was analyzed by high-performance liquid chromatographic-diode array detection (HPLC-DAD). The spasmolytic effect was evaluated on guinea pig ileum, toxicological activity using rats and antidiarrheal activity using male and female mice. In HPLC-DAD analysis, Rosmarinic acid (5.44%) was the most abundant phenolic compound, being considered as a chemical marker. The spasmolytic potency of the extract on histamine-induced contraction was reduced in the presence of 1 mM TEA+, a selective big-conductance K+ channels blocker (BKCa). The extract produces a dose-dependent antidiarrheal activity, inhibiting equipotently defecation frequency and liquid stool formation. In addition, the extract has inhibited in a dose-dependent manner both castor oil-induced intestinal transit and intestinal fluid content. Thus, the spasmolytic activity of the extract involves positive modulation of BKCa and its antidiarrheal activity is related to inhibition of intestinal motility and secretion.
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Affiliation(s)
- Iara Leão Luna de Souza
- Departamento de Ciências Biológicas e Saúde, Universidade Estadual de Roraima, Boa Vista, Brazil
| | | | - Anne Dayse Soares da Silva
- Programa de Pós-graduação em Química e Biotecnologia, Instituto de Química, Universidade Federal de Alagoas, Maceió, Brazil
| | | | | | | | | | - Hilzeth Luna Freire Pessôa
- Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Josean Fechine Tavares
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Marcelo Sobral da Silva
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Bagnólia Araújo da Silva
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Fabiana de Andrade Cavalcante
- Instituto de Pesquisa em Fármacos e Medicamentos, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
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Silva MDCC, Souza ILLD, Vasconcelos LHC, Ferreira PB, Araujo LCDC, Sampaio RDS, Tavares JF, da Silva BA, Cavalcante FDA. Essential oil from Lippia microphylla Cham. modulates nitric oxide pathway and calcium influx to exert a tocolytic effect in rat uterus. Nat Prod Res 2019; 35:1046-1051. [PMID: 31163990 DOI: 10.1080/14786419.2019.1614578] [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] [Indexed: 10/26/2022]
Abstract
The essential oil of Lippia microphylla (LM-OE) presents several pharmacological activities. This work evaluates the tocolytic effect of LM-OE on rats. LM-OE inhibited phasic contractions and relaxed tonic contractions on rat uterus. Considering that nitric oxide (NO) pathway regulates uterine contraction, LM-OE potency was attenuated in the presence of NO synthase (NOS) inhibitor and this reduction was reversed in the presence of a NOS substrate. Similarly, the relaxant potency of LM-OE was reduced in the presence of soluble guanylyl cyclase (sGC) and protein kinase G (PKG) inhibitors. LM-OE also demonstrates a positive modulation of large and small conductance calcium-activated, voltage-gated and adenosine triphosphate-sensitive potassium channels and inhibited curves to CaCl2 as well as relaxed the uterus pre-contracted by S-(-)-Bay K8644, suggesting voltage-gated calcium channels type-1 (CaV1) blockade. Thus, the tocolytic effect of LM-OE on rat involves positive modulation of NO/NOS/sGC/PKG/K+-channels pathway and Ca2+ influx blockade through CaV1.[Formula: see text].
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Affiliation(s)
- Maria da Conceição Correia Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Iara Leão Luna de Souza
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil.,Departamento de Fisiologia e Patologia, CCS, UFPB, João Pessoa, PB, Brazil
| | - Luiz Henrique César Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil.,Departamento de Fisiologia e Patologia, CCS, UFPB, João Pessoa, PB, Brazil
| | - Paula Benvindo Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Layanne Cabral da Cunha Araujo
- Programa de Pós-graduação em Ciências (Fisiologia Humana), Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Renata de Souza Sampaio
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Josean Fechine Tavares
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil.,Departamento de Ciências Farmacêuticas, CCS, UFPB, João Pessoa, PB, Brazil
| | - Bagnólia Araújo da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil.,Departamento de Ciências Farmacêuticas, CCS, UFPB, João Pessoa, PB, Brazil
| | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde (CCS), Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil.,Departamento de Fisiologia e Patologia, CCS, UFPB, João Pessoa, PB, Brazil
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Vasconcelos LHC, Silva MDCC, Costa AC, de Oliveira GA, de Souza ILL, Queiroga FR, Araujo LCDC, Cardoso GA, Righetti RF, Silva AS, da Silva PM, Carvalho CRDO, Vieira GC, Tibério IDFLC, Cavalcante FDA, da Silva BA. A Guinea Pig Model of Airway Smooth Muscle Hyperreactivity Induced by Chronic Allergic Lung Inflammation: Contribution of Epithelium and Oxidative Stress. Front Pharmacol 2019; 9:1547. [PMID: 30814952 PMCID: PMC6353839 DOI: 10.3389/fphar.2018.01547] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 12/18/2018] [Indexed: 11/17/2022] Open
Abstract
Asthma is a heterogeneous disease of the airways characterized by chronic inflammation associated with bronchial and smooth muscle hyperresponsiveness. Currently, different murine models for the study of asthma show poor bronchial hyperresponsiveness due to a scarcity of smooth muscle and large airways, resulting in a failure to reproduce smooth muscle hyperreactivity. Thus, we aimed to standardize a guinea pig model of chronic allergic lung inflammation mimicking airway smooth muscle hyperreactivity observed in asthmatics (Asth). Animals were randomly divided into a control group (Ctrl), which received saline (0.9% NaCl), and the Asth group, subjected to in vivo sensitization with ovalbumin (OVA) nebulization. Morphological analysis was performed by hematoxylin-eosin staining. Bronchial hyperresponsiveness was evaluated by nebulization time in the fifth, sixth, and seventh inhalations (NT5-7) and tracheal isometric contractions were assessed by force transducer. Total antioxidant capacity was measured by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method and protein expression by Western blot. Histologically, the Asth group developed peribronchial cellular infiltrate, epithelial hyperplasia and smooth muscle thickening. After the fourth nebulization, the Asth group developed bronchial hyperreactivity. The trachea from the Asth group contracted after in vitro stimulation with OVA, differing from the Ctrl group, which showed no response. Additionally, airway smooth muscle hyperreactivity to carbachol and histamine was observed in the Asth group only in intact epithelium preparations, but not to KCl, and this effect was associated with an augmented production of reactive oxygen species. Moreover, lung inflammation impaired the relaxant potency of isoproterenol only in intact epithelium preparations, without interfering with nifedipine, and it was found to be produced by transforming growth factor-β negative modulation of β adrenergic receptors and, furthermore, big-conductance Ca2+-sensitive K+ channels. These effects were also associated with increased levels of phosphatidylinositol 3-kinases but not extracellular signal-regulated kinases 1/2 or phosphorylation, and augmented α-actin content as well, explaining the increased smooth muscle mass. Furthermore, pulmonary antioxidant capacity was impaired in the Asth group. Therefore, we developed a standardized and easy-to-use, reproducible guinea pig model of lung inflammation that mimics airway smooth muscle hypercontractility, facilitating the investigation of the mechanisms of bronchial hyperresponsiveness in asthma and new therapeutic alternatives.
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Affiliation(s)
- Luiz Henrique César Vasconcelos
- Programa de Pós graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Maria da Conceição Correia Silva
- Programa de Pós graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Alana Cristina Costa
- Graduação em Farmácia, Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Giuliana Amanda de Oliveira
- Graduação em Farmácia, Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Iara Leão Luna de Souza
- Programa de Pós graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Fernando Ramos Queiroga
- Programa de Pós graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Layanne Cabral da Cunha Araujo
- Programa de Pós graduação em Ciências (Fisiologia Humana), Instituto de Ciências Biológicas, Universidade de São Paulo, São Paulo, Brazil
| | - Glêbia Alexa Cardoso
- Programa Associado de Pós graduação em Educação Física, Universidade Federal da Paraíba/Universidade do Pernambuco, João Pessoa, Brazil
| | - Renato Fraga Righetti
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
- Hospital Sírio Libanês, São Paulo, Brazil
| | - Alexandre Sérgio Silva
- Programa Associado de Pós graduação em Educação Física, Universidade Federal da Paraíba/Universidade do Pernambuco, João Pessoa, Brazil
- Departamento de Educação Física, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Patrícia Mirella da Silva
- Programa de Pós graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Biologia Molecular, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Carla Roberta de Oliveira Carvalho
- Programa de Pós graduação em Ciências (Fisiologia Humana), Instituto de Ciências Biológicas, Universidade de São Paulo, São Paulo, Brazil
- Departamento de Biofísica e Fisiologia, Instituto de Ciências Biológicas, Universidade de São Paulo, São Paulo, Brazil
| | - Giciane Carvalho Vieira
- Departamento de Morfologia/Centro de Ciências da Saúde/Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | - Fabiana de Andrade Cavalcante
- Programa de Pós graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Fisiologia e Patologia/Centro de Ciências da Saúde/Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Bagnólia Araújo da Silva
- Programa de Pós graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
- Departamento de Ciências Farmacêuticas/Centro de Ciências da Saúde/Universidade Federal da Paraíba, João Pessoa, Brazil
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de Souza ILL, Barros BC, de Oliveira GA, Queiroga FR, Toscano LT, Silva AS, Silva PM, Interaminense LFL, Cavalcante FDA, da Silva BA. Hypercaloric Diet Establishes Erectile Dysfunction in Rat: Mechanisms Underlying the Endothelial Damage. Front Physiol 2017; 8:760. [PMID: 29085300 PMCID: PMC5649200 DOI: 10.3389/fphys.2017.00760] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 05/10/2017] [Accepted: 09/19/2017] [Indexed: 01/06/2023] Open
Abstract
Obesity is characterized by an excessive increase in body mass, leading to endothelial damage that may favor the development of erectile dysfunction (ED). ED is defined as the inability to achieve or maintain a penile erection long enough to have a sexual intercourse. In this context, different ED models were developed, however the high price of special animals or the long period to establish the disease has limited studies in this field. Therefore, this study proposed to establish and characterize a novel model of ED in rats associated to a hypercaloric diet consumption. Animals were randomly divided into control group (CG), which received a standard diet, and obese group (OG), fed with a hypercaloric diet during 8 weeks. Rat's erectile function was evaluated in vivo and in vitro. Food and caloric intake of OG were reduced compared to CG, due to an increased diet energy efficiency. However, OG presented an increased body mass, inguinal, retroperitoneal and epididymal adipose tissues, as well as body adiposity index at the end of experimental protocol. In erectile function analysis, there was a decrease in the number and the latency of penile erections in OG. Additionally, the contractile reactivity of corpus cavernosum was increased in OG, favoring penile detumescence and related to a reduced nitric oxide bioavailability and an increased in contractile prostaglandins levels as a consequence of endothelial damage. Moreover, the endothelium-relaxation reactivity of corpus cavernosum was attenuated in OG associated to the oxidative stress. Thus, it was provided a model for advances in sexual dysfunction field and drug discovery for ED treatment.
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Affiliation(s)
- Iara L L de Souza
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Bárbara C Barros
- Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | - Fernando R Queiroga
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Lydiane T Toscano
- Departamento de Educação Física, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Alexandre S Silva
- Departamento de Educação Física, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Patrícia M Silva
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil.,Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Bagnólia A da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil.,Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Brazil
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10
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da Silva ADS, de Melo E Silva K, Neto JC, Costa VCDO, Pessôa HDLF, Tavares JF, da Silva MS, Cavalcante FDA. Croton grewioides Baill. (Euphorbiaceae) Shows Antidiarrheal Activity in Mice. Pharmacognosy Res 2016; 8:202-5. [PMID: 27365990 PMCID: PMC4908850 DOI: 10.4103/0974-8490.181465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Based on chemotaxonomy, we decided to investigate the possible antidiarrheal activity in mice of a crude ethanolic extract obtained from aerial parts of Croton grewioides (CG-EtOH). We tested for any possible toxicity in rat erythrocytes and acute toxicity in mice. Antidiarrheal activity was assessed by determining the effect of CG-EtOH on defecation frequency, liquid stool, intestinal motility and intestinal fluid accumulation. CG-EtOH showed no in vitro cytotoxicity and was not orally lethal. In contrast, the extract given intraperitoneally (at 2000 mg/kg) was lethal, but only in females. CG-EtOH produced a significant and equipotent antidiarrheal activity, both in defecation frequency (ED50 = 106.0 ± 8.1 mg/kg) and liquid stools (ED50 = 105.0 ± 9.2 mg/kg). However, CG-EtOH (125 mg/kg) decreased intestinal motility by only 22.7% ± 4.4%. Moreover, extract markedly inhibited the castor oil-induced intestinal contents (ED50 = 34.6 ± 5.4 mg/kg). We thus conclude that CG-EtOH is not orally lethal and contains active principles with antidiarrheal activity, and this effect seems to involve mostly changes in intestinal secretion.
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Affiliation(s)
- Anne Dayse Soares da Silva
- Postgraduate Program in Natural Products and Synthetic Bioactive, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Karoline de Melo E Silva
- Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió 57020-720, AL, Brazil
| | - José Clementino Neto
- Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió 57020-720, AL, Brazil
| | | | - Hilzeth de Luna F Pessôa
- Department of Molecular Biology, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Josean Fechine Tavares
- Postgraduate Program in Natural Products and Synthetic Bioactive, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Marcelo Sobral da Silva
- Postgraduate Program in Natural Products and Synthetic Bioactive, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Fabiana de Andrade Cavalcante
- Postgraduate Program in Natural Products and Synthetic Bioactive, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; Department of Physiology and Pathology, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
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11
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Araujo LCDC, de Souza ILL, Vasconcelos LHC, Brito ADF, Queiroga FR, Silva AS, da Silva PM, Cavalcante FDA, da Silva BA. Acute Aerobic Swimming Exercise Induces Distinct Effects in the Contractile Reactivity of Rat Ileum to KCl and Carbachol. Front Physiol 2016; 7:103. [PMID: 27047389 PMCID: PMC4796008 DOI: 10.3389/fphys.2016.00103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 03/03/2016] [Indexed: 11/23/2022] Open
Abstract
Aerobic exercise promotes short-term physiological changes in the intestinal smooth muscle associated to the ischemia-reperfusion process; however, few studies have demonstrated its effect on the intestinal contractile function. Thus, this work describes our observations regarding the influence of acute aerobic swimming exercise in the contractile reactivity, oxidative stress, and morphology of rat ileum. Wistar rats were divided into sedentary (SED) and acutely exercised (EX-AC) groups. Animals were acclimated by 10, 10, and 30 min of swimming exercise in intercalated days 1 week before exercise. Then they were submitted to forced swimming for 1 h with a metal of 3% of their body weight attached to their body. Animals were euthanized immediately after the exercise section and the ileum was suspended in organ baths for monitoring isotonic contractions. The analysis of lipid peroxidation was performed in order to determinate the malondialdehyde (MDA) levels as a marker of oxidative stress, and intestinal smooth muscle morphology by histological staining. Cumulative concentration-response curves to KCl were altered in the EX-AC with an increase in both its efficacy and potency (Emax = 153.2 ± 2.8%, EC50 = 1.3 ± 0.1 × 10−2 M) compared to the SED group (Emax = 100%, EC50 = 1.8 ± 0.1 × 10−2 M). Interestingly, carbachol had its efficacy and potency reduced in the EX-AC (Emax = 67.1 ± 1.4%, EC50 = 9.8 ± 1.4 × 10−7 M) compared to the SED group (Emax = 100%, EC50 = 2.0 ± 0.2 × 10−7 M). The exercise did not alter the MDA levels in the ileum (5.4 ± 0.6 μ mol/mL) in the EX-AC compared to the SED group (8.4 ± 1.7 μ mol/mL). Moreover, neither the circular nor the longitudinal smooth muscle layers thickness were modified by the exercise (66.2 ± 6.0 and 40.2 ± 2.6 μm, respectively), compared to the SED group (61.6 ± 6.4 and 34.8 ± 3.7 μm, respectively). Therefore, the ileum sensitivity to contractile agents is differentially altered by the acute aerobic swimming exercise, without affecting the oxidative stress and the morphology of ileum smooth muscle.
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Affiliation(s)
- Layanne C da Cunha Araujo
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba João Pessoa, Brazil
| | - Iara L L de Souza
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba João Pessoa, Brazil
| | - Luiz H C Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba João Pessoa, Brazil
| | - Aline de Freitas Brito
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba João Pessoa, Brazil
| | - Fernando R Queiroga
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba João Pessoa, Brazil
| | - Alexandre S Silva
- Departamento de Educação Física, Centro de Ciências da Saúde, Universidade Federal da Paraíba João Pessoa, Brazil
| | - Patrícia M da Silva
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da ParaíbaJoão Pessoa, Brazil; Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da ParaíbaJoão Pessoa, Brazil
| | - Fabiana de Andrade Cavalcante
- Departamento de Fisiologia e Patologia, Centro de Ciência da Saúde, Universidade Federal da Paraíba João Pessoa, Brazil
| | - Bagnólia A da Silva
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da ParaíbaJoão Pessoa, Brazil; Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da ParaíbaJoão Pessoa, Brazil; Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da ParaíbaJoão Pessoa, Brazil
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Cavalcante-Silva LHA, Correia ACDC, Sousa JCF, Barbosa-Filho JM, Santos BVDO, de Miranda GEC, Alexandre-Moreira MS, Cavalcante FDA. Involvement of β adrenergic receptors in spasmolytic effect of caulerpine on guinea pig ileum. Nat Prod Res 2016; 30:2605-2610. [PMID: 26734711 DOI: 10.1080/14786419.2015.1120728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Previously, we demonstrated that caulerpine has spasmolytic effect on guinea pig ileum. The aim of this study was to investigate pathways of its spasmolytic action. We test caulerpine against phasic contractions induced by carbachol in the circular layer of guinea pig ileum and this alkaloid did not inhibit these contractions, indicating that caulerpine did not interfering with the mobilisation of Ca2+ from intracellular stores. Additionally, the spasmolytic effect of caulerpine did not involve K+ channels. Furthermore, we observed that α2-adrenergic receptors were not involved in the spasmolytic effect of caulerpine, since the relaxation curve induced by caulerpine was not shifted in the presence of yohimbine (α2-adrenergic antagonist). However, in the presence of propranolol (β-adrenergic antagonist), the relaxation curve induced by caulerpine was right-shifted, resulting in a fivefold increase in EC50. Thus, a possible mechanism for the spasmolytic action of caulerpine is the activation of β-adrenergic receptors.
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Affiliation(s)
| | | | | | - José Maria Barbosa-Filho
- c Postgraduate Program in Natural Products and Synthetic Bioactive , Federal University of Paraíba , João Pessoa , Brazil.,d Department of Pharmaceutical Sciences , Federal University of Paraíba , João Pessoa , Brazil
| | - Bárbara Viviana de Oliveira Santos
- c Postgraduate Program in Natural Products and Synthetic Bioactive , Federal University of Paraíba , João Pessoa , Brazil.,d Department of Pharmaceutical Sciences , Federal University of Paraíba , João Pessoa , Brazil
| | | | | | - Fabiana de Andrade Cavalcante
- c Postgraduate Program in Natural Products and Synthetic Bioactive , Federal University of Paraíba , João Pessoa , Brazil.,f Department of Physiology and Pathology , Federal University of Paraíba , João Pessoa , Brazil
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13
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Souza ILLD, Correia ACDC, Araujo LCDC, Vasconcelos LHC, Silva MDCC, Costa VCDO, Tavares JF, Paredes-Gamero EJ, Cavalcante FDA, Silva BAD. Essential oil from Xylopia frutescens Aubl. reduces cytosolic calcium levels on guinea pig ileum: mechanism underlying its spasmolytic potential. BMC Complement Altern Med 2015; 15:327. [PMID: 26376723 PMCID: PMC4573295 DOI: 10.1186/s12906-015-0849-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 09/03/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND Xylopia frutescens Aubl. (embira, semente-de-embira or embira-vermelha), is used in folk medicine as antidiarrheal. The essential oil from its leaves (XF-EO) has been found to cause smooth muscle relaxation. Thus, the aim of this study was to investigate the spasmolytic action by which XF-EO acts on guinea pig ileum. METHODS The components of the XF-EO were identified by gas chromatography-mass spectrometry. Segments of guinea pig ileum were suspended in organ bath containing modified Krebs solution at 37 °C, bubbled with carbogen mixture under a resting tension of 1 g. Isotonic contractions were registered using kymographs and isometric contractions using force transducer coupled to an amplifier and computer. Fluorescence measurements were obtained with a microplate reader using Fluo-4. RESULTS Forty-three constituents were identified in XF-EO, mostly mono- and sesquiterpenes. XF-EO has been found to cause relaxation on guinea pig ileum. The essential oil inhibited in a concentration-dependent manner both CCh- and histamine-induced phasic contractions, being more potent on histamine-induced contractions as well as antagonized histamine-induced cumulative contractions in a non-competitive antagonism profile. XF-EO relaxed in a concentration-dependent manner the ileum pre-contracted with KCl and histamine. Since the potency was smaller in organ pre-contracted with KCl, it was hypothesized that XF-OE would be acting as a K(+) channel positive modulator. In the presence of CsCl (non-selective K(+) channel blocker), the relaxant potency of XF-OE was not altered, indicating a non-participation of these channels. Moreover, XF-EO inhibited CaCl2-induced cumulative contractions in a depolarizing medium nominally without Ca(2+) and relaxed the ileum pre-contracted with S-(-)-Bay K8644 in a concentration-dependent manner, thus, was confirmed the inhibition of Ca(2+) influx through Cav1 by XF-EO. In cellular experiments, the viability of longitudinal layer myocytes from guinea pig ileum was not altered in the presence of XF-OE and the Fluo-4-associated fluorescence intensity in these intestinal myocytes stimulated by histamine was reduced by the essential oil, indicating a [Ca(2+)]c reduction. CONCLUSION Spasmolytic action mechanism of XF-EO on guinea pig ileum can involve histaminergic receptor antagonism and Ca(2+) influx blockade, which results in [Ca(2+)]c reduction leading to smooth muscle relaxation.
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Affiliation(s)
| | | | | | | | | | | | - Josean Fechine Tavares
- Centro de Ciências da Saúde/Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
- Instituto de Pesquisa em Fármacos e Medicamentos/Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
| | | | - Fabiana de Andrade Cavalcante
- Centro de Ciências da Saúde/Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
- Instituto de Pesquisa em Fármacos e Medicamentos/Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
- Universidade Federal da Paraíba, Centro de Ciências da Saúde/Pós-Graduação em Produtos Naturais e Sintéticos Bioativos/Laboratório de Farmacologia Funcional Prof. George Thomas, Cidade, Universitária, P.O. Box 5009, 58051-970, João Pessoa, Paraíba, Brazil.
| | - Bagnólia Araújo da Silva
- Centro de Ciências da Saúde/Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
- Instituto de Pesquisa em Fármacos e Medicamentos/Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
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Silva PCB, Clementino Neto J, Silva ADSD, Silva KDME, Silva TMS, Agra MDF, Cavalcante FDA. Antidiarrheal activity of Solanum asterophorum in mice. Rev bras farmacogn 2012. [DOI: 10.1590/s0102-695x2011005000178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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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