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Behmanesh MA, Rasekhian A, Kiani F, Dehghandoost M, Dezfuli DA, Ghorbanzadeh B. The nitric oxide-cyclic GMP-K ATP channels pathway contributes to the effects of montelukast against gastric damage induced by ethanol. Alcohol 2023; 113:33-40. [PMID: 37295565 DOI: 10.1016/j.alcohol.2023.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/12/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023]
Abstract
The leukotrienes, lipid mediators, have a role in gastric damage induced by ethanol. Here, the gastroprotective effect of montelukast, an antagonist of the leukotriene receptor, and the involvement of the NO-cGMP-KATP channel pathway, were evaluated in gastric damage induced by ethanol in rats. For this, l-arginine, l-NAME, methylene blue (guanylate cyclase inhibitor), sildenafil, diazoxide, or glibenclamide (ATP-sensitive potassium channel blocker) were administered 30 min before montelukast (0.1, 1, 10, and 20 mg/kg, by mouth [p.o.]). After 1 h, to induce gastric damage, the rats received absolute ethanol (4 mL/kg, p.o.), and then microscopic, macroscopic, and pro-inflammatory parameters (TNF-α and IL-1β) were assessed. Results obtained here revealed that montelukast significantly attenuated the macroscopic and microscopic lesions induced by ethanol. Montelukast also reduced IL-1β and TNF-α levels. It was also observed that NOS inhibitor (l-NAME), methylene blue, and glibenclamide inhibited the effects of montelukast in the stomach. Moreover, the NO precursor (l-arginine), the PDE-5 inhibitor (sildenafil), and a potassium channel opener (diazoxide) before montelukast produced gastroprotective effects. In conclusion, the effect of montelukast against gastric lesions induced by ethanol is mediated, at least in part, through the pathway of the NO-cGMP-KATP channel.
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Affiliation(s)
- Mohammad Amin Behmanesh
- Department of Histology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Amin Rasekhian
- Department of Pharmacology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Forutan Kiani
- Department of Pharmacology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Mostafa Dehghandoost
- Department of Pharmacology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | | | - Behnam Ghorbanzadeh
- Department of Pharmacology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran.
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2
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Zaitseva OO, Sergushkina MI, Khudyakov AN, Polezhaeva TV, Solomina ON. Seaweed sulfated polysaccharides and their medicinal properties. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Wang X, Yin J, Hu J, Nie S, Xie M. Gastroprotective polysaccharide from natural sources: Review on structure, mechanism, and structure–activity relationship. FOOD FRONTIERS 2022. [DOI: 10.1002/fft2.172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Xiao‐Yin Wang
- State Key Laboratory of Food Science and Technology China‐Canada Joint Lab of Food Science and Technology (Nanchang) Nanchang University Nanchang 330047 China
- School of Public Health and Health Management Gannan Medical University Ganzhou 341000 China
| | - Jun‐Yi Yin
- State Key Laboratory of Food Science and Technology China‐Canada Joint Lab of Food Science and Technology (Nanchang) Nanchang University Nanchang 330047 China
| | - Jie‐Lun Hu
- State Key Laboratory of Food Science and Technology China‐Canada Joint Lab of Food Science and Technology (Nanchang) Nanchang University Nanchang 330047 China
| | - Shao‐Ping Nie
- State Key Laboratory of Food Science and Technology China‐Canada Joint Lab of Food Science and Technology (Nanchang) Nanchang University Nanchang 330047 China
| | - Ming‐Yong Xie
- State Key Laboratory of Food Science and Technology China‐Canada Joint Lab of Food Science and Technology (Nanchang) Nanchang University Nanchang 330047 China
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4
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Pereira Júnior LC, Nascimento FG, Oliveira SRBD, Lima GC, Chagas FDS, Sombra VG, Feitosa JPA, Soriano EM, Souza MHLP, Zocolo GJ, Silva LMA, de Paula RCM, Damasceno ROS, Freitas ALP. Protective effect against gastric mucosa injury of a sulfated agaran from Acanthophora spicifera. Carbohydr Polym 2021; 261:117829. [PMID: 33766334 DOI: 10.1016/j.carbpol.2021.117829] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 02/09/2021] [Accepted: 02/12/2021] [Indexed: 11/26/2022]
Abstract
In this study, a polysaccharide from marine alga Acanthophora spicifera (PAs) was isolated and structurally characterized. Its protective potential against chemically-induced gastric mucosa injury was evaluated. The gel permeation chromatography experiments and spectroscopy spectrum showed that PAs is a sulfated polysaccharide with a high molecular mass (6.98 × 105g/mol) and degree of sulfation of 1.23, exhibiting structural characteristic typical of an agar-type polysaccharide. Experimental results demonstrated that PAs reduced the hemorrhagic gastric injury, in a dose-dependent manner. Additionally, PAs reduced the intense gastric oxidative stress, measured by glutathione (GSH) and malondialdehyde (MDA) levels. PAs also prevented the reduction of mucus levels adhered to the gastric mucosa, promoted by the aggressive effect of ethanol. In summary, the sulfated polysaccharide from A. spicifera protected the gastric mucosa through the prevention of lipid peroxidation and enhanced the defense mechanisms of the gastric mucosa, suggesting as a promising functional food as gastroprotective agent.
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Affiliation(s)
- Lindauro C Pereira Júnior
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
| | | | - Samara R B D Oliveira
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, 60430-270, Fortaleza, CE, Brazil
| | - Glauber C Lima
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil; Centro Universitário INTA (UNINTA), 62500-000, Itapipoca, CE, Brazil
| | - Francisco Diego S Chagas
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
| | - Venicios G Sombra
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
| | - Judith P A Feitosa
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
| | - Eliane M Soriano
- Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte, 59072-970, Natal, RN, Brazil
| | - Marcellus H L P Souza
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, 60430-270, Fortaleza, CE, Brazil
| | | | - Lorena M A Silva
- Embrapa Agroindústria Tropical, 60511-110, Fortaleza, CE, Brazil
| | - Regina C M de Paula
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
| | - Renan O S Damasceno
- Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, 50670-420, Recife, PE, Brazil.
| | - Ana Lúcia P Freitas
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
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Sulfated polysaccharide extracted from seaweed Gracilaria caudata attenuates acetic acid-induced ulcerative colitis. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106221] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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6
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Oliveira FFBD, Bingana RD, Morais PAF, Oliveira SRBD, Barbosa ALDR, Chaves LDS, Alencar PDOC, Soares PMG, Souza MHLP, Freitas ALP, Barros FCN, Medeiros JVR, Damasceno ROS. Sulfated polysaccharide from Gracilaria caudata reduces hypernociception and inflammatory response during arthritis in rodents. Int J Biol Macromol 2020; 161:1061-1069. [PMID: 32531369 DOI: 10.1016/j.ijbiomac.2020.06.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/21/2020] [Accepted: 06/08/2020] [Indexed: 12/12/2022]
Abstract
Polysaccharide from marine alga Gracilaria caudata has potential health benefits, such as anti-inflammatory, gastroprotective and antidiarrheal effects. Here, we investigated the effect of a sulfated polysaccharide from G. caudata (SP-GC) on hypernociception and inflammatory response in arthritis models. The animals received SP-GC (3, 10 or 30 mg/kg) 1 h before tibio-tarsal injection of zymosan. Hypernociception, histopathology, edema, vascular permeability, myeloperoxidase (MPO) activity, cell influx, interleukin (IL)-1β and nitric oxide (NO) levels were evaluated in acute phase. In another protocol, animals received SP-GC (30 mg/kg) 2 h post-complete Freund's adjuvant (CFA). Hypernociception, edema and arthritis index were determined in acute, sub-chronic and chronic phases. Rota-rod test measured the motor performance. SP-GC significantly reduced, in a dose-dependent manner, the zymosan-induced hypernociception with maximal effect at 30 mg/kg. The microscopic inflammation, joint edema, MPO activity, cell influx, IL-1β and NO levels were also reduced by SP-GC. In the CFA-induced arthritis, SP-GC inhibits the hypernociception, edema and arthritic index in acute, sub-chronic and chronic phases. SP-GC did not alter the motor performance of animals. In conclusion, SP-GC exerts protective effect in models of arthritis due to the modulation of cell influx, IL-1β and NO levels, culminating in the reduction of hypernociception and edema.
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Affiliation(s)
| | - Rudy Diavila Bingana
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, 60430-275 Fortaleza, CE, Brazil
| | - Pedro Almir Feitosa Morais
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, 60430-275 Fortaleza, CE, Brazil
| | | | - André Luiz Dos Reis Barbosa
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Universidade Federal do Piauí, 64202-020 Parnaíba, PI, Brazil
| | - Luciano de Sousa Chaves
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, 60440-900 Fortaleza, CE, Brazil
| | | | - Pedro Marcos Gomes Soares
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, 60430-275 Fortaleza, CE, Brazil
| | | | - Ana Lúcia Ponte Freitas
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, 60440-900 Fortaleza, CE, Brazil
| | - Francisco Clark Nogueira Barros
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, 60440-900 Fortaleza, CE, Brazil; Departamento de Pesquisa, Pós-Graduação e Inovação, 63040-540, Instituto Federal de Educação, Ciência e Tecnologia - CE, Brazil
| | - Jand-Venes Rolim Medeiros
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Universidade Federal do Piauí, 64202-020 Parnaíba, PI, Brazil
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Abstract
Gastrointestinal disease is a major global threat to public health. In the past few decades, numerous studies have focuses on the application of small molecule gases in the disease treatment. Increasing evidence has shown that hydrogen sulfide (H2S) has anti-inflammatory and anti-oxidative effects, and can regulate gastric mucosal blood flow in the gastric mucosa. After gastric mucosa damage, the level of H2S in the stomach decreases. Administration of H2S can protect and repair the damaged gastric mucosa. Therefore, H2S is a new target for the repair and treatment of gastric mucosa damage. In this review, we introduce the roles of H2S in the treatment of gastric mucosa damage and provide the potential strategies for further clinical treatment.
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Affiliation(s)
- Fang Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Chong-Shun Zhao
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Mei-Fen Shen
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
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Sanjivkumar M, Chandran MN, Suganya AM, Immanuel G. Investigation on bio-properties and in-vivo antioxidant potential of carrageenans against alloxan induced oxidative stress in Wistar albino rats. Int J Biol Macromol 2020; 151:650-662. [DOI: 10.1016/j.ijbiomac.2020.02.227] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 02/19/2020] [Accepted: 02/20/2020] [Indexed: 10/25/2022]
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Structural Features and Rheological Properties of a Sulfated Xylogalactan-Rich Fraction Isolated from Tunisian Red Seaweed Jania adhaerens. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10051655] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A novel sulfated xylogalactan-rich fraction (JSP for J. adhaerens Sulfated Polysaccharide) was extracted from the red Tunisian seaweed Jania adhaerens. JSP was purified using an alcoholic precipitation process and characterized by Attenuated Total Reflectance-Fourier-transform infrared spectroscopy (ATR-FTIR), high-pressure size exclusion chromatography (HPSEC) with a multi-angle laser light scattering (MALLS), gas chromatography coupled to mass spectrometry (GC-MS) and nuclear magnetic resonance spectroscopy (NMR, 1D and 2D). JSP was then evaluated regarding its physicochemical and rheological properties. Results showed that JSP was mainly composed of an agar-like xylogalactan sharing the general characteristics of corallinans. The structure of JSP was mainly composed of agaran disaccharidic repeating units (→3)-β-d-Galp-(1,4)-α-l-Galp-(1→)n and (→3)-β-d-Galp-(1,4)-3,6-α-l-AnGalp-(1→)n, mainly substituted on O-6 of (1,3)-β-d-Galp residues by β-xylosyl side chains, and less with sulfate or methoxy groups. (1,4)-α-l-Galp residues were also substituted by methoxy and/or sulfate groups in the O-2 and O-3 positions. Mass-average and number-average molecular masses (Mw) and (Mn), intrinsic viscosity ([η]) and hydrodynamic radius (Rh) for JSP were, respectively, 8.0 × 105 g/mol, 1.0 × 105 g/mol, 76 mL/g and 16.8 nm, showing a flexible random coil conformation in solution. The critical overlap concentration C* of JSP was evaluated at 7.5 g/L using the Williamson model. In the semi-diluted regime, JSP solutions displayed a shear-thinning behavior with a great viscoelasticity character influenced by temperature and monovalent salts. The flow characteristics of JSP were described by the Ostwald model.
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Sales TMAL, Nicolau LAD, Rodrigues RLM, Nascimento RR, Paula SM, da Costa-Filho HB, Bezerra FF, Santos GRC, Barros FCN, Alencar PDOC, Freitas ALP, Nobre-Souza MÂ, Santos AA, Sifrim D, Soares PMG, Silva RO, Souza MHLP. Polysaccharide from Gracilaria caudata protects the human esophageal mucosal barrier: A differential topical effect and structural dependence. Int J Biol Macromol 2020; 150:354-361. [PMID: 32057860 DOI: 10.1016/j.ijbiomac.2020.02.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 01/21/2020] [Accepted: 02/09/2020] [Indexed: 02/06/2023]
Abstract
This study aimed to evaluate the in vitro protective effect of topical treatment with a native sulfated polysaccharide of G. caudata (SP-Gc), hydrolyzed (H-SP-Gc), or desulfated (D-SP-Gc) polysaccharide of Gracilaria caudata in esophageal biopsies obtained from GERD patients. Biopsies were obtained from nonerosive reflux disease (NERD) patients and from erosive esophagitis patients. Then, the biopsies were mounted in an Ussing chamber to measure the basal transepithelial electrical resistance (TEER). The effect of mucosal exposure to an acid solution on TEER was analyzed with or without different concentrations (1, 0.3 or 1%) of SP-Gc, H-SP-Gc, or D-SP-Gc, precoated on the mucosa. Basal esophageal mucosal electrical resistance was significantly lower in erosive esophagitis than from NERD. Mucosal samples precoated with native SP-Gc (1%) significantly prevented TEER drop induced by an acidic solution in NERD, but this effect was not observed in erosive esophagitis. Topical application of D-SP-Gc showed no difference compared to native SP-Gc. However, when treated with chemically-modified SP-Gc, the protective effect observed with native SP-Gc was lost. The present study indicated that SP-Gc protects the human esophageal mucosal barrier in NERD patients. This effect is dependent on the structure but is independent of the presence of sulfate.
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Affiliation(s)
| | - Lucas Antonio Duarte Nicolau
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil; Biotechnology and Biodiversity Center Research, BIOTEC, Federal University of the Parnaíba Delta, Parnaíba, Brazil
| | | | | | - Suliana Mesquita Paula
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | | | - Francisco Felipe Bezerra
- Program of Glycobiology, Institute of Medical Biochemistry Leopoldo de Meis, University Hospital Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | - Ana Lúcia Ponte Freitas
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Brazil
| | | | - Armênio Aguiar Santos
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | - Daniel Sifrim
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | | | - Renan Oliveira Silva
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife, Brazil
| | - Marcellus Henrique Loiola Ponte Souza
- Department of Clinical Medicine, Federal University of Ceará, Fortaleza, Brazil; Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil.
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Monteiro CES, Sousa JAO, Lima LM, Barreiro EJ, da Silva-Leite KES, de Carvalho CMM, Girão DKFB, Reis Barbosa AL, de Souza MHLP, Gomes Soares PM. LASSBio-596 protects gastric mucosa against the development of ethanol-induced gastric lesions in mice. Eur J Pharmacol 2019; 863:172662. [DOI: 10.1016/j.ejphar.2019.172662] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/03/2019] [Accepted: 09/16/2019] [Indexed: 02/08/2023]
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da Silva Monteiro CE, Franco ÁX, Sousa JAO, Matos VEA, de Souza EP, Fraga CAM, Barreiro EJ, de Souza MHLP, Soares PMG, Barbosa ALR. Gastroprotective effects of N-acylarylhydrazone derivatives on ethanol-induced gastric lesions in mice are dependent on the NO/cGMP/K ATP pathway. Biochem Pharmacol 2019; 169:113629. [PMID: 31491412 DOI: 10.1016/j.bcp.2019.113629] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/30/2019] [Indexed: 12/21/2022]
Abstract
The gastroprotective effects of N-acylarylhydrazone derivatives on ethanol-induced gastric lesions in mice were investigated with respect to the NO/cGMP/KATP pathway. To investigate our hypothesis, the mice were intraperitoneally pretreated with glibenclamide, L-NAME, or ODQ 30 min before treatment with DMSO, LASSBio-294 (1, 2, and 4 mg/kg, p.o.), LASSBio-897 (0.5, 1, and 2 mg/kg, p.o.), or omeprazole. After 1 h, the mice received absolute ethanol (4 ml/kg) by gavage to induce gastric mucosal lesions, and the microscopic and macroscopic parameters were evaluated. GSH (non-protein sulfhydryl groups) and MDA (malondialdehyde) concentrations, hemoglobin levels, nitric oxide production, myeloperoxidase (MPO) activity, and TNF-α and IL-1β levels were also analyzed in the stomach after absolute ethanol administration. Pretreatment with LASSBio-294 or LASSBio-897 significantly reduced the microscopic and macroscopic lesion area. The compounds restored the GSH, MDA, and hemoglobin levels and reduced MPO activity. Moreover, the compounds significantly reduced nitrate and nitrite concentrations in the stomach samples after ethanol administration. Molecular docking studies revealed that LASSBio-294 and LASSBio-897 interact with active sites of the eNOS (endothelial nitric oxide synthase) enzymes through hydrogen bonds. LASSBio-294 and LASSBio-897 also reduced TNF-α and IL-1β levels. It was observed that a NO synthase inhibitor, an ATP-sensitive potassium channel blocker, and a guanylate cyclase inhibitor significantly reversed the gastroprotective effects of these compounds. Thus, the gastroprotective effect of LASSBio-294 and LASSBio-897 against gastric lesions is mediated through the NO/cGMP cascade, followed by blocking of the KATP channels.
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Affiliation(s)
- Carlos Eduardo da Silva Monteiro
- LEFFAG-Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Álvaro Xavier Franco
- LEFFAG-Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Johnatan Alisson Oliveira Sousa
- LEFFAG-Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Victor Emanuel Araújo Matos
- LEFFAG-Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Emmanuel Prata de Souza
- Department of Morphology, Medical School, Federal University of Ceara, Rua Delmiro de Farias s/n, Rodolfo Teofilo, Fortaleza, Ceara, Brazil
| | - Carlos Alberto Manssour Fraga
- Laboratory of Evaluation and Synthesis of Bioactive Substances, Federal University of Rio de Janeiro, CCS, Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Eliezer J Barreiro
- Laboratory of Evaluation and Synthesis of Bioactive Substances, Federal University of Rio de Janeiro, CCS, Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Marcellus Henrique Loiola Ponte de Souza
- LEFFAG-Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Pedro Marcos Gomes Soares
- LEFFAG-Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil; Department of Morphology, Medical School, Federal University of Ceara, Rua Delmiro de Farias s/n, Rodolfo Teofilo, Fortaleza, Ceara, Brazil
| | - André Luiz Reis Barbosa
- LAFFEX-Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research, Federal University of Piauí, Parnaíba, Brazil.
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Seaweed Supplementation Enhances Maximal Muscular Strength and Attenuates Resistance Exercise-Induced Oxidative Stress in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:3528932. [PMID: 31467574 PMCID: PMC6699269 DOI: 10.1155/2019/3528932] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 06/19/2019] [Accepted: 07/04/2019] [Indexed: 01/29/2023]
Abstract
We investigated the effect of chronic seaweed (Gracilaria asiatica) supplementation on maximal carrying capacity, muscle mass, and oxidative stress in rats following high-intensity resistance exercise (RE). Forty Sprague-Daley rats were equally categorized into control, exercise, seaweed, and exercise plus seaweed (ES) groups. Rats in respective groups performed RE (once per 2 days) or received seaweed (250 mg/kg bodyweight, orally) for 10 weeks. Results showed that seaweed consumption in combination with RE significantly (p < 0.05) increased maximal weight carrying capacity compared to RE alone. FHL muscle mass was significantly higher in both exercise and ES groups. Notably, high-intensity RE-induced lipid peroxidation, as evidenced by elevated thiobarbituric acid reactive substances (TBARS) in muscle, was substantially diminished (p < 0.05) by seaweed treatment. This antioxidative effect of seaweed was further represented by augmented superoxide dismutase activity and glutathione levels in seaweed groups. We noticed increased insulin concentrations and HOMA-IR, while the fasting blood glucose levels remained stable in seaweed and ES groups. Our findings conclude that seaweed in combination with RE enhanced maximal carrying strength and attenuated oxidative stress through improved antioxidant capacity. Seaweed could be a potential nutritional supplement to boost performance and to prevent exercise-induced muscle damage.
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da Silva FRP, e Silva Conceição Pinto M, de Carvalho França LF, Alves EHP, dos Santos Carvalho J, Di Lenardo D, Brito TV, Medeiros JVR, de Oliveira JS, Freitas ALP, Barros FCN, dos Reis Barbosa AL, Vasconcelos DFP. Sulfated polysaccharides from the marine algae Gracilaria caudata prevent tissue damage caused by ligature-induced periodontitis. Int J Biol Macromol 2019; 132:1-8. [DOI: 10.1016/j.ijbiomac.2019.03.194] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/05/2019] [Accepted: 03/25/2019] [Indexed: 02/07/2023]
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15
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A novel antioxidant sulfated polysaccharide from the algae Gracilaria caudata: In vitro and in vivo activities. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.12.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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16
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Torres P, Santos JP, Chow F, dos Santos DY. A comprehensive review of traditional uses, bioactivity potential, and chemical diversity of the genus Gracilaria (Gracilariales, Rhodophyta). ALGAL RES 2019. [DOI: 10.1016/j.algal.2018.12.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Characterization of sulfated polysaccharide from Laurencia obtusa and its apoptotic, gastroprotective and antioxidant activities. Int J Biol Macromol 2018; 126:326-336. [PMID: 30543883 DOI: 10.1016/j.ijbiomac.2018.12.089] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 12/08/2018] [Accepted: 12/09/2018] [Indexed: 12/12/2022]
Abstract
This study was designed to characterize the physico-chemical properties of the sulfated polysaccharide (SP) isolated from the red alga Laurencia obtusa and to evaluate its apoptotic, gastroprotective and antioxidant activities. The different macromolecular characteristics of SP were determined by size exclusion chromatography combined with multi-angle laser light-scattering detection (SEC-MALLS), Fourier transform infrared spectroscopy (FTIR) analysis and nuclear magnetic resonance spectroscopy (1H NMR and 13C NMR). The native molecular weight of the extracted polysaccharide is high (≥336,900 g·mol-1). It showed high amounts of sulfated groups (28.2%) and low levels of proteins. It was found to be a potent inducer of apoptosis on acute monocytic leukaemia THP-1cell lines with EC50 value of 53 μg·mL-1. Furthermore, a significant gastroprotective effect (p < 0.01) was also observed with a gastric ulcer inhibition of 63.44%, 78.42% and 82.15% at the doses 25, 50 and 100 mg·kg-1, respectively. In addition, SP significantly increased glutathione levels (GSH) and decreased the concentration of thiobarbituric acid-reactive substances (TBARS) in EtOH/HCl-damaged gastric mucosa in rats; it also exhibited an important antioxidant activity in vitro. Therefore, SP, derived from the red alga Laurencia obtusa, may have a potential therapeutic effect against acute myeloid leukaemia and a beneficial potential as gastroprotective and antioxidant natural product.
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Bezerra FF, Lima GC, Sousa NAD, Sousa WMD, Costa LEC, Costa DSD, Barros FCN, Medeiros JVR, Freitas ALP. Antidiarrheal activity of a novel sulfated polysaccharide from the red seaweed Gracilaria cervicornis. JOURNAL OF ETHNOPHARMACOLOGY 2018; 224:27-35. [PMID: 29803569 DOI: 10.1016/j.jep.2018.05.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The use of marine seaweeds as a source of natural compounds with medicinal purposes is increasing in Western countries in the last decades, becoming an important alternative in the traditional medicine of many developing countries, where diarrhea still remains a severe public health problem, with high rates of mortality and morbidity. Sulfated polysaccharides (PLS) extracted from red seaweeds can exhibit therapeutic effects for the treatment of gastrointestinal disorders. Thus, the pharmacological properties of the PLS from Gracilaria cervicornis, an endemic seaweed found in the Brazilian northeast coast, was evaluated as an alternative natural medication for diarrhea. AIM OF THE STUDY This study aimed to evaluate the antidiarrheal activity of sulfated polysaccharides (PLS) extracted from the red seaweed G. cervicornis in Swiss mice pre-treated with castor oil or cholera toxin. MATERIALS AND METHODS The seaweed Gracilaria cervicornis was collected at Flecheiras beach (city of Trairí, State of Ceará, Brazil) and the PLS was obtained through enzymatic extraction and administered in mice (25-30 g) before diarrhea induction with castor oil or cholera toxin. For the evaluation of the total number of fecal output and diarrheal feces, the animals were placed in cages lined with adsorbent material. The evaluation of intestinal fluid accumulation (enteropooling) on castor oil-induced diarrhea in mice occurred by dissecting the small intestine and measuring its volume. The determination of Na+/K+-ATPase activity was measured in the small intestine supernatants by colorimetry, using commercial biochemistry kits. The gastrointestinal motility was evaluated utilizing an activated charcoal as a food tracer. The intestinal fluid secretion and chloride ion concentration were evaluated in intestinal closed loops in mice with cholera toxin-induced secretory diarrhea. The binding ability of PLS with GM1 and/or cholera toxin was evaluated by an Enzyme-Linked Immunosorbent Assay (ELISA). RESULTS The G. cervicornis PLS showed antidiarrheal effects in both acute and secretory diarrhea, reducing the total number of fecal output, diarrheic stools, intestinal fluid accumulation, and increasing small intestine Na+/K+-ATPase activity on castor oil-induced diarrhea. However, the PLS did not affect gastrointestinal motility, indicating that this compound has a different action mechanism than loperamide. In secretory diarrhea, the PLS decreased intestinal fluid secretion and small intestine chloride excretion, binding with GM1 and/or cholera toxin and blocking their attachment to the enterocyte cell surface. CONCLUSIONS In conclusion, PLS has a significant antidiarrheal effect in acute and secretory diarrhea. Further investigation is needed towards its use as a natural medicine to treat diarrhea.
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Affiliation(s)
- Francisco Felipe Bezerra
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology - Federal University of Ceará. Fortaleza, Ceará, Brazil
| | - Glauber Cruz Lima
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology - Federal University of Ceará. Fortaleza, Ceará, Brazil.
| | - Nayara Alves de Sousa
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation program in Biotechnology - Federal University of Piauí. Parnaíba, Piauí, Brazil
| | - Willer Malta de Sousa
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology - Federal University of Ceará. Fortaleza, Ceará, Brazil
| | - Luís Eduardo Castanheira Costa
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology - Federal University of Ceará. Fortaleza, Ceará, Brazil
| | - Douglas Soares da Costa
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation program in Biotechnology - Federal University of Piauí. Parnaíba, Piauí, Brazil
| | - Francisco Clark Nogueira Barros
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology - Federal University of Ceará. Fortaleza, Ceará, Brazil; Federal Institute of Education, Science and Technology of Ceará - Juazeiro do Norte, Ceará, Brazil
| | - Jand Venes Rolim Medeiros
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation program in Biotechnology - Federal University of Piauí. Parnaíba, Piauí, Brazil
| | - Ana Lúcia Ponte Freitas
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology - Federal University of Ceará. Fortaleza, Ceará, Brazil
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Extraction, purification, and characterization of polysaccharides from marine algae Gracilaria lemaneiformis with anti-tumor activity. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Barua E, Deoghare AB, Deb P, Lala SD. Naturally derived biomaterials for development of composite bone scaffold: A review. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/377/1/012013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Gastroprotective Effects of Sulphated Polysaccharides from the Alga Caulerpa mexicana Reducing Ethanol-Induced Gastric Damage. Pharmaceuticals (Basel) 2018; 11:ph11010006. [PMID: 29361672 PMCID: PMC5874702 DOI: 10.3390/ph11010006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/17/2017] [Accepted: 11/19/2017] [Indexed: 02/06/2023] Open
Abstract
The development of the gastric lesion is complex and the result of the imbalance between aggressive and protective factors, involving the generation of free radicals and disturbance in nitric oxide (NO) production. Sulphated polysaccharides (SP), from marine algae, are widely used in biotechnological and pharmaceutical areas. In this study, we evaluated the effects of SP from the green marine alga Caulerpa mexicana (Cm-SP) in ethanol-induced gastric damage models in mice. Cm-SP (2, 20, or 200 mg/kg), administered p.o., significantly reduced gastric damage, and these effects were inhibited through pretreatment with indomethacin. Cm-SP (200 mg/kg) prevented the ethanol-induced decline in glutathione and restored its normal level. Moreover, it was able to normalize the elevated thiobarbituric acid reactive substance levels. However, Cm-SP did not show any significant effects on NO2/NO3 level, when compared to the ethanol group. The pretreatment with L- NAME induced gastric mucosal damage and did not inhibit the gastroprotective effect of Cm-SP (200 mg/kg). In conclusion, the gastroprotective effects of Cm-SP in mice involve prostaglandins and reduction in the oxidative stress and are independent of NO.
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Ammar HH, Lajili S, Sakly N, Cherif D, Rihouey C, Le Cerf D, Bouraoui A, Majdoub H. Influence of the uronic acid composition on the gastroprotective activity of alginates from three different genus of Tunisian brown algae. Food Chem 2018; 239:165-171. [PMID: 28873554 DOI: 10.1016/j.foodchem.2017.06.108] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 06/19/2017] [Accepted: 06/20/2017] [Indexed: 11/21/2022]
Abstract
Alginates from three genus of Tunisian brown algae were isolated and characterized by size exclusion chromatography and Solid-state NMR spectroscopy. Alginate from Padina pavonica (APP) had the highest molecular weight (Mw) with 147,000g/mol while it was 85,000g/mol for alginate from Cystoseira compressa (ACC) and 58,000g/mol for alginate from Dictyopteris membranaceae (ADM). The mannuronate (M) to guluronate (G) ratios were estimated from spectral deconvolution of the 13C CP/MAS spectra and the results has shown that all the extracts are mannuronic acid-rich alginates with M/G ratio increased in the order ADM - ACC - APP. An interesting gastroprotective effect was observed for the extracts; ADM and ACC exhibited the highest inhibition of gastric lesions, at 50mg/kg, with 83.41% and 75.39% respectively. Otherwise, it has been shown that the gastroprotective effect of alginates depends mainly on their uronic acid composition.
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Affiliation(s)
- Hiba Hadj Ammar
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Bd. de l'environnement, 5019 Monastir, Tunisia
| | - Sirine Lajili
- Laboratoire de développement chimique, galénique et pharmacologique des médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, 5000 Monastir, Tunisia
| | - Nawfel Sakly
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Bd. de l'environnement, 5019 Monastir, Tunisia
| | - Dora Cherif
- Laboratoire de développement chimique, galénique et pharmacologique des médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, 5000 Monastir, Tunisia
| | | | - Didier Le Cerf
- Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Abderrahman Bouraoui
- Laboratoire de développement chimique, galénique et pharmacologique des médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, 5000 Monastir, Tunisia
| | - Hatem Majdoub
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Bd. de l'environnement, 5019 Monastir, Tunisia.
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Souza LKM, Araújo TS, Sousa NA, Sousa FBM, Nogueira KM, Nicolau LA, Medeiros JVR. Evidence that d-cysteine protects mice from gastric damage via hydrogen sulfide produced by d-amino acid oxidase. Nitric Oxide 2017; 64:1-6. [DOI: 10.1016/j.niox.2017.01.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/08/2017] [Accepted: 01/23/2017] [Indexed: 12/13/2022]
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Leódido ACM, Costa LE, Araújo TS, Costa DS, Sousa NA, Souza LK, Sousa FB, Filho MD, Vasconcelos DF, Silva FR, Nogueira KM, Araújo AR, Barros FCN, Freitas ALP, Medeiros JVR. Anti-diarrhoeal therapeutic potential and safety assessment of sulphated polysaccharide fraction from Gracilaria intermedia seaweed in mice. Int J Biol Macromol 2017; 97:34-45. [DOI: 10.1016/j.ijbiomac.2017.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 12/08/2016] [Accepted: 01/02/2017] [Indexed: 10/20/2022]
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25
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Sousa WM, Silva RO, Bezerra FF, Bingana RD, Barros FCN, Costa LE, Sombra VG, Soares PM, Feitosa JP, de Paula RC, Souza MH, Barbosa ALR, Freitas ALP. Sulfated polysaccharide fraction from marine algae Solieria filiformis : Structural characterization, gastroprotective and antioxidant effects. Carbohydr Polym 2016; 152:140-148. [DOI: 10.1016/j.carbpol.2016.06.111] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 06/21/2016] [Accepted: 06/28/2016] [Indexed: 01/24/2023]
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26
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RETRACTED: In vivo and in vitro antithrombus activities of depolymerized holothurian polysaccharides. Int J Biol Macromol 2016; 94:364-369. [PMID: 27751806 DOI: 10.1016/j.ijbiomac.2016.10.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 09/13/2016] [Accepted: 10/13/2016] [Indexed: 11/24/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).
This article has been retracted at the request of authors. The authors have recently found a serious mistake in Table 1 of the article, where the molecular ratio of different monosaccharides is inconsistent with their previously published work. This error flaws the paper and so the authors wish it to be retracted to avoid misunderstanding and misinterpretation of their research work. The authors apologise for any concern or confusion that might have resulted in publishing this article.
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27
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Sousa NA, Barros FCN, Araújo TS, Costa DS, Souza LKM, Sousa FBM, Leódido ACM, Pacífico DM, Araújo SD, Bezerra FF, Freitas ALP, Medeiros JVR. The efficacy of a sulphated polysaccharide fraction from Hypnea musciformis against diarrhea in rodents. Int J Biol Macromol 2016; 86:865-75. [DOI: 10.1016/j.ijbiomac.2016.02.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 02/04/2016] [Accepted: 02/10/2016] [Indexed: 10/22/2022]
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28
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Costa DS, Araújo TSL, Sousa NA, Souza LKM, Pacífico DM, Sousa FBM, Nicolau LAD, Chaves LS, Barros FCN, Freitas ALP, Medeiros JVR. Sulphated Polysaccharide Isolated from the Seaweed Gracilaria caudata
Exerts an Antidiarrhoeal Effect in Rodents. Basic Clin Pharmacol Toxicol 2016; 118:440-8. [DOI: 10.1111/bcpt.12531] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 11/04/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Douglas S. Costa
- Medicinal Plant Research Center; NPPM; Postgraduate Program in Pharmacology; Federal University of Piauí; Teresina Piauí Brazil
| | - Thiago S. L. Araújo
- Biotechnology and Biodiversity Center Research; BIOTEC; Federal University of Piauí; Parnaíba Piauí Brazil
| | - Nayara A. Sousa
- Biotechnology and Biodiversity Center Research; BIOTEC; Federal University of Piauí; Parnaíba Piauí Brazil
| | - Luan K. M. Souza
- Biotechnology and Biodiversity Center Research; BIOTEC; Federal University of Piauí; Parnaíba Piauí Brazil
| | - Dvison M. Pacífico
- Biotechnology and Biodiversity Center Research; BIOTEC; Federal University of Piauí; Parnaíba Piauí Brazil
| | - Francisca Beatriz M. Sousa
- Biotechnology and Biodiversity Center Research; BIOTEC; Federal University of Piauí; Parnaíba Piauí Brazil
| | - Lucas A. D. Nicolau
- Medicinal Plant Research Center; NPPM; Postgraduate Program in Pharmacology; Federal University of Piauí; Teresina Piauí Brazil
| | - Luciano S. Chaves
- Department of Biochemistry and Molecular Biology; Federal University of Ceará; Fortaleza Ceará Brazil
| | - Francisco Clark N. Barros
- Department of Biochemistry and Molecular Biology; Federal University of Ceará; Fortaleza Ceará Brazil
- Federal Institute of Education, Science, and Technology of Ceará; Juazeiro do Norte Ceará Brazil
| | - Ana Lúcia P. Freitas
- Department of Biochemistry and Molecular Biology; Federal University of Ceará; Fortaleza Ceará Brazil
| | - Jand Venes R. Medeiros
- Medicinal Plant Research Center; NPPM; Postgraduate Program in Pharmacology; Federal University of Piauí; Teresina Piauí Brazil
- Biotechnology and Biodiversity Center Research; BIOTEC; Federal University of Piauí; Parnaíba Piauí Brazil
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Cian RE, Drago SR, de Medina FS, Martínez-Augustin O. Proteins and Carbohydrates from Red Seaweeds: Evidence for Beneficial Effects on Gut Function and Microbiota. Mar Drugs 2015; 13:5358-83. [PMID: 26308006 PMCID: PMC4557026 DOI: 10.3390/md13085358] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/22/2015] [Accepted: 08/04/2015] [Indexed: 12/12/2022] Open
Abstract
Based on their composition, marine algae, and namely red seaweeds, are good potential functional foods. Intestinal mucosal barrier function refers to the capacity of the intestine to provide adequate containment of luminal microorganisms and molecules. Here, we will first outline the component of seaweeds and will summarize the effects of these on the regulation of mucosal barrier function. Special attention will be paid to unique components of red seaweeds: proteins and derived peptides (e.g., phycobiliproteins, glycoproteins that contain “cellulose binding domains”, phycolectins and the related mycosporine-like amino acids) together with polysaccharides (e.g., floridean starch and sulfated galactans, such as carrageenans, agarans and “dl-hybrid”) and minerals. These compounds have been shown to exert prebiotic effects, to regulate intestinal epithelial cell, macrophage and lymphocyte proliferation and differentiation and to modulate the immune response. Molecular mechanisms of action of peptides and polysaccharides are starting to be elucidated, and evidence indicating the involvement of epidermal growth factor receptor (EGFR), insulin-like growth factor receptor (IGFR), Toll-like receptors (TLR) and signal transduction pathways mediated by protein kinase B (PKB or AKT), nuclear factor-κB (NF-κB) and mitogen activated protein kinases (MAPK) will also be summarized. The need for further research is clear, but in vivo experiments point to an overall antiinflammatory effect of these algae, indicating that they can reinforce membrane barrier function.
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Affiliation(s)
- Raúl E Cian
- Instituto de Tecnología de Alimentos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, 1° de Mayo 3250, (3000) Santa Fe, República Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917 (C1033AAJ), Ciudad Autónoma de Buenos Aires, República Argentina.
| | - Silvina R Drago
- Instituto de Tecnología de Alimentos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, 1° de Mayo 3250, (3000) Santa Fe, República Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917 (C1033AAJ), Ciudad Autónoma de Buenos Aires, República Argentina.
| | - Fermín Sánchez de Medina
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad de Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
- Instituto de Ciencia y Tecnología de los Alimentos José Mataix, Universidad de Granada, 18071 Granada, Spain.
| | - Olga Martínez-Augustin
- Instituto de Ciencia y Tecnología de los Alimentos José Mataix, Universidad de Granada, 18071 Granada, Spain.
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad de Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
- Instituto de Investigación Biosanitaria. ibs. GRANADA, University of Granada, 18071 Granada, Spain.
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Carvalho NS, Silva MM, Silva RO, Nicolau LAD, Sousa FBM, Damasceno SRB, Silva DA, Barbosa ALR, Leite JRSA, Medeiros JVR. Gastroprotective properties of cashew gum, a complex heteropolysaccharide of Anacardium occidentale, in naproxen-induced gastrointestinal damage in rats. Drug Dev Res 2015; 76:143-51. [PMID: 25959135 DOI: 10.1002/ddr.21250] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 03/26/2015] [Indexed: 11/10/2022]
Abstract
Long-term use nonsteroidal anti-inflammatory drug is associated with gastrointestinal (GI) lesion formation. The aim of this study was to investigate the protective activity of cashew gum (CG), a complex heteropolysaccharide extracted from Anacardium occidentale on naproxen (NAP)-induced GI damage. Male Wistar rats were pretreated with vehicle or CG (1, 3, 10, and 30 mg/kg, p.o.) twice daily for 2 days; after 1 h, NAP (80 mg/kg, p.o.) was administered. The rats were euthanized on the 2nd day of treatment, 4 h after NAP administration. Stomach lesions were measured using digital calipers. The medial small intestine was used for the evaluation of macroscopic lesion scores. Samples of the stomach and the intestine were used for histological evaluation, and assays for glutathione (GSH), malonyldialdehyde (MDA), and myeloperoxidase (MPO). Additional rats were used to measure gastric mucus and secretion. Pretreatment with CG reduced the macroscopic and microscopic damage induced by NAP. CG significantly attenuated NAP-induced alterations in MPO, GSH, and MDA levels. Furthermore, CG returned adherent mucus levels to normal values. These results suggest that CG has a protective effect against GI damage via mechanisms that involve the inhibition of inflammation and increasing the amount of adherent mucus in mucosa.
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Affiliation(s)
- Nathalia S Carvalho
- Post-Graduation Program in Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | - Mônica M Silva
- Post-Graduation Program in Biotechnology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí, 64204-260, Parnaíba, PI, Brazil
| | - Renan O Silva
- Post-Graduation Program in Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Lucas A D Nicolau
- Post-Graduation Program in Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | - Francisca Beatriz M Sousa
- Post-Graduation Program in Biotechnology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí, 64204-260, Parnaíba, PI, Brazil
| | - Samara R B Damasceno
- Post-Graduation Program in Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Durcilene A Silva
- Post-Graduation Program in Biotechnology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí, 64204-260, Parnaíba, PI, Brazil
| | - André L R Barbosa
- Post-Graduation Program in Pharmacology, Federal University of Piauí, Teresina, PI, Brazil.,Post-Graduation Program in Biotechnology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí, 64204-260, Parnaíba, PI, Brazil
| | - José Roberto S A Leite
- Post-Graduation Program in Pharmacology, Federal University of Piauí, Teresina, PI, Brazil.,Post-Graduation Program in Biotechnology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí, 64204-260, Parnaíba, PI, Brazil
| | - Jand Venes R Medeiros
- Post-Graduation Program in Pharmacology, Federal University of Piauí, Teresina, PI, Brazil.,Post-Graduation Program in Biotechnology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí, 64204-260, Parnaíba, PI, Brazil
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Pereira JG, Mesquita JX, Aragão KS, Franco ÁX, Souza MH, Brito TV, Dias JM, Silva RO, Medeiros JVR, Oliveira JS, Abreu CMW, de Paula RCM, Barbosa ALR, Freitas ALP. Polysaccharides isolated from Digenea simplex inhibit inflammatory and nociceptive responses. Carbohydr Polym 2014; 108:17-25. [DOI: 10.1016/j.carbpol.2014.01.105] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/20/2014] [Accepted: 01/22/2014] [Indexed: 11/16/2022]
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Batista JA, Dias EG, Brito TV, Prudêncio RS, Silva RO, Ribeiro RA, Souza MHL, de Paula RC, Feitosa JP, Chaves LS, Melo MR, Freitas AL, Medeiros JVR, Barbosa AL. Polysaccharide isolated from Agardhiella ramosissima: Chemical structure and anti-inflammation activity. Carbohydr Polym 2014; 99:59-67. [DOI: 10.1016/j.carbpol.2013.08.071] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Revised: 08/20/2013] [Accepted: 08/23/2013] [Indexed: 10/26/2022]
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Senthil KA, Murugan A. Antiulcer, wound healing and hepatoprotective activities of the seaweeds Gracilaria crassa, Turbinaria ornata and Laurencia papillosa from the southeast coast of India. BRAZ J PHARM SCI 2013. [DOI: 10.1590/s1984-82502013000400006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Seaweeds have bioactive compounds of interest in the pharmaceutical industry. In India, seaweeds are used exclusively for phycocolloids production and have not yet received consideration as a dietary supplement. So, it has become imperative to explore the biomedical potential of seaweeds and promote their utilization as a functional food. The seaweeds Turbinaria ornata, Gracillaria crassa and Laurencia papillosa, collected from the Tuticorin coast of the Southeast coast of India and selected based on preliminary screening, were extracted with acetone and evaluated for antiulcer, wound healing and hepatoprotective activities. L. papillosa showed the highest level of gastric protection activity (81%) at 200 mg/kg, comparable to the standard drug ranitidine (90%). G. crassa followed with 76%. G. crassa and L. papillosa, showed marked wound-healing activity. G. crassa at 200 mg/kg, showed a marked effect on the serum marker enzymes indicating prominent hepatoprotective activity. The noteworthy wound-healing and hepato-protective properties of G. crassa besides anti-ulcer activity next to L. papillosa were indicative of its potential for further consideration.
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Pires CL, Rodrigues SD, Bristot D, Hessel Gaeta H, de Oliveira Toyama D, Ronald Lobo Farias W, Hikari Toyama M. Sulfated polysaccharide extracted of the green algae Caulerpa racemosa increase the enzymatic activity and paw edema induced by sPLA2 from Crotalus durissus terrificus venom. REVISTA BRASILEIRA DE FARMACOGNOSIA 2013. [DOI: 10.1590/s0102-695x2013005000050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Silva RO, Santana APM, Carvalho NS, Bezerra TS, Oliveira CB, Damasceno SRB, Chaves LS, Freitas ALP, Soares PMG, Souza MHLP, Barbosa ALR, Medeiros JVR. A sulfated-polysaccharide fraction from seaweed Gracilaria birdiae prevents naproxen-induced gastrointestinal damage in rats. Mar Drugs 2013; 10:2618-33. [PMID: 23342384 PMCID: PMC3528114 DOI: 10.3390/md10122618] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Red seaweeds synthesize a great variety of sulfated galactans. Sulfated polysaccharides (PLSs) from seaweed are comprised of substances with pharmaceutical and biomedical potential. The aim of the present study was to evaluate the protective effect of the PLS fraction extracted from the seaweed Gracilaria birdiae in rats with naproxen-induced gastrointestinal damage. Male Wistar rats were pretreated with 0.5% carboxymethylcellulose (control group—vehicle) or PLS (10, 30, and 90 mg/kg, p.o.) twice daily (at 09:00 and 21:00) for 2 days. After 1 h, naproxen (80 mg/kg, p.o.) was administered. The rats were killed on day two, 4 h after naproxen treatment. The stomachs were promptly excised, opened along the greater curvature, and measured using digital calipers. Furthermore, the guts of the animals were removed, and a 5-cm portion of the small intestine (jejunum and ileum) was used for the evaluation of macroscopic scores. Samples of the stomach and the small intestine were used for histological evaluation, morphometric analysis and in assays for glutathione (GSH) levels, malonyldialdehyde (MDA) concentration, and myeloperoxidase (MPO) activity. PLS treatment reduced the macroscopic and microscopic naproxen-induced gastrointestinal damage in a dose-dependent manner. Our results suggest that the PLS fraction has a protective effect against gastrointestinal damage through mechanisms that involve the inhibition of inflammatory cell infiltration and lipid peroxidation.
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Affiliation(s)
- Renan O. Silva
- LAFFEX—Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba 64202-020, PI, Brazil; (R.O.S.); (N.S.C.); (T.S.B.); (C.B.O.); (S.R.B.D.); (A.L.R.B.)
| | - Ana Paula M. Santana
- LAFICA—Laboratory of Pharmacology of Inflammation and Cancer, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza 60430-270, CE, Brazil; (A.P.M.S.); (P.M.G.S.); (M.H.L.P.S.)
| | - Nathalia S. Carvalho
- LAFFEX—Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba 64202-020, PI, Brazil; (R.O.S.); (N.S.C.); (T.S.B.); (C.B.O.); (S.R.B.D.); (A.L.R.B.)
| | - Talita S. Bezerra
- LAFFEX—Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba 64202-020, PI, Brazil; (R.O.S.); (N.S.C.); (T.S.B.); (C.B.O.); (S.R.B.D.); (A.L.R.B.)
| | - Camila B. Oliveira
- LAFFEX—Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba 64202-020, PI, Brazil; (R.O.S.); (N.S.C.); (T.S.B.); (C.B.O.); (S.R.B.D.); (A.L.R.B.)
| | - Samara R. B. Damasceno
- LAFFEX—Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba 64202-020, PI, Brazil; (R.O.S.); (N.S.C.); (T.S.B.); (C.B.O.); (S.R.B.D.); (A.L.R.B.)
| | - Luciano S. Chaves
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE 60455-760, Brazil; (L.S.C.); (A.L.P.F.)
| | - Ana Lúcia P. Freitas
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE 60455-760, Brazil; (L.S.C.); (A.L.P.F.)
| | - Pedro M. G. Soares
- LAFICA—Laboratory of Pharmacology of Inflammation and Cancer, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza 60430-270, CE, Brazil; (A.P.M.S.); (P.M.G.S.); (M.H.L.P.S.)
| | - Marcellus H. L. P. Souza
- LAFICA—Laboratory of Pharmacology of Inflammation and Cancer, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza 60430-270, CE, Brazil; (A.P.M.S.); (P.M.G.S.); (M.H.L.P.S.)
| | - André Luiz R. Barbosa
- LAFFEX—Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba 64202-020, PI, Brazil; (R.O.S.); (N.S.C.); (T.S.B.); (C.B.O.); (S.R.B.D.); (A.L.R.B.)
| | - Jand-Venes R. Medeiros
- LAFFEX—Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba 64202-020, PI, Brazil; (R.O.S.); (N.S.C.); (T.S.B.); (C.B.O.); (S.R.B.D.); (A.L.R.B.)
- Author to whom correspondence should be addressed; ; Tel.: +55-86-99862374/+55-86-33234750; Fax: +55-86-33235406
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Damasceno SR, Rodrigues JC, Silva RO, Nicolau LA, Chaves LS, Freitas AL, Souza MH, Barbosa AL, Medeiros JVR. Role of the NO/KATP pathway in the protective effect of a sulfated-polysaccharide fraction from the algae Hypnea musciformis against ethanol-induced gastric damage in mice. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2013. [DOI: 10.1590/s0102-695x2013005000003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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de Brito TV, Prudêncio RDS, Sales AB, Vieira Júnior FDC, Candeira SJN, Franco ÁX, Aragão KS, Ribeiro RDA, Ponte de Souza MHL, Chaves LDS, Freitas ALP, Medeiros JVR, dos Reis Barbosa AL. Anti-inflammatory effect of a sulphated polysaccharide fraction extracted from the red algae Hypnea musciformis via the suppression of neutrophil migration by the nitric oxide signalling pathway. J Pharm Pharmacol 2013; 65:724-33. [DOI: 10.1111/jphp.12024] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 12/19/2012] [Indexed: 12/16/2022]
Abstract
Abstract
Objectives
The aim of this study was to evaluate the anti-inflammatory effect of a sulphated polysaccharide fraction (PLS) extracted from the alga Hypnea musciformis and investigate the possible involvement of the nitric oxide (NO) pathway in this effect.
Methods
The anti-inflammatory activity of PLS was evaluated using inflammatory agents (carrageenan and dextran) to induce paw oedema and peritonitis in Swiss mice. Samples of paw tissue and peritoneal fluid were removed to determine myeloperoxidase (MPO) activity, NO3/NO2 levels, and interleukin-1β (IL-1β) level. The involvement of NO in the modulation of neutrophil migration in carrageenan-induced paw oedema or peritonitis was also investigated.
Key findings
Compared with vehicle-treated mice, mice pretreated with PLS (10 mg/kg) inhibited carrageenan-induced and dextran-induced oedema; it also inhibited total and differential peritoneal leucocyte counts in a model of peritonitis. These PLS effects were reversed by l-arginine treatment and recovered with the administration of a NO synthase blocker (aminoguanidine). Furthermore, PLS reduced the MPO activity, decreased IL-1β levels, and increased NO3/NO2 levels in the peritoneal cavity.
Conclusions
PLS reduced the inflammatory response by modulating neutrophil migration, which appeared to be dependent on the NO pathway.
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Affiliation(s)
- Tarcisio Vieira de Brito
- LAFFEX – Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, Brazil
| | - Rafael da Silva Prudêncio
- LAFFEX – Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, Brazil
| | - Adriano Bezerra Sales
- LAFFEX – Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, Brazil
| | - Francisco das Chagas Vieira Júnior
- LAFFEX – Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, Brazil
| | - Starley Jone Nogueira Candeira
- LAFFEX – Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, Brazil
| | - Álvaro Xavier Franco
- LAFICA – Laboratory of Pharmacology of Inflammation and Cancer, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | - Karoline Sabóia Aragão
- LAFICA – Laboratory of Pharmacology of Inflammation and Cancer, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | - Ronaldo de Albuquerque Ribeiro
- LAFICA – Laboratory of Pharmacology of Inflammation and Cancer, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | | | - Luciano de Sousa Chaves
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Brazil
| | - Ana Lúcia Ponte Freitas
- Laboratory of Proteins and Carbohydrates of Marine Algae, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Brazil
| | - Jand-Venes Rolim Medeiros
- LAFFEX – Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, Brazil
| | - André Luiz dos Reis Barbosa
- LAFFEX – Laboratory of Experimental Physiopharmacology, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, Brazil
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Barros FC, da Silva DC, Sombra VG, Maciel JS, Feitosa JP, Freitas AL, de Paula RC. Structural characterization of polysaccharide obtained from red seaweed Gracilaria caudata (J Agardh). Carbohydr Polym 2013; 92:598-603. [DOI: 10.1016/j.carbpol.2012.09.009] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 08/13/2012] [Accepted: 09/07/2012] [Indexed: 12/31/2022]
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Chaves LDS, Nicolau LAD, Silva RO, Barros FCN, Freitas ALP, Aragão KS, Ribeiro RDA, Souza MHLP, Barbosa ALDR, Medeiros JVR. Antiinflammatory and antinociceptive effects in mice of a sulfated polysaccharide fraction extracted from the marine red algaeGracilaria caudata. Immunopharmacol Immunotoxicol 2012; 35:93-100. [DOI: 10.3109/08923973.2012.707211] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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