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Almeida GVBD, Arunachalam K, Balogun SO, Pavan E, Ascêncio SD, Soares IM, Zanatta AC, Vilegas W, Macho A, Oliveira Martins DTD. Chemical characterization and evaluation of gastric antiulcer properties of the hydroethanolic extract of the stem bark of Virola elongata (Benth.) Warb. JOURNAL OF ETHNOPHARMACOLOGY 2019; 231:113-124. [PMID: 30415060 DOI: 10.1016/j.jep.2018.11.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/04/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Virola elongata is a tree species belonging to the Myristicaceae family, distributed in the North and Midwest regions of Brazil, in the phytogeographic domain of the Amazon. The aqueous infusion or the hydroethanolic macerate of the stem bark of V. elongata are used in Brazilian and Ecuadorian indigenous folk medicine for several ethnopharmacological purposes, principally, in the treatment of stomach pain, indigestions, and gastric ulcers. This study was aimed to investigate the gastroprotective activity of this plant in order to support its popular use with scientific evidence. MATERIALS AND METHODS The stem bark hydroethanolic extract of the plant (HEVe) was prepared by maceration. Its qualitative and quantitative phytochemical constituents were investigated by classical colorimetric techniques, HPLC, and electrospray ionization-multiple stage fragmentation (ESI-MSn). The gastroprotective and antiulcer activity of HEVe at doses of 100, 300 and 900 mg/kg p.o. were tested using three acute (acidified ethanol, piroxicam, and in-water-restrain stress), and one chronic (acetic acid) animal ulcer models. The probable mode of action of the HEVe was evaluated by analyzing gastric acid secretion, mucus content, nitric oxide effect, and its antioxidant properties (on catalase, myeloperoxidase, and GSH content) in experimental rodents. The direct extract's activity on the growth of Helicobacter pylori was also investigated. RESULTS Total phenolic content in the HEVe was of 146.20 ± 1.07 mg, being flavonoids about 50% (71.79 ± 0.70 mg) of it. Comparative HPLC fingerprint analysis revealed the presence of known phenolic antiulcer compounds, such as gallic acid, catechin, and rutin. Also, methanol/water fractionation and ESI-MSn analysis of the HEVe reveals the presence of quinic acid, 3,3',4-trihydroxystilbene, juruenolid D, one catechin dimer, one C-glycosyl flavonoid, one polyketide and two neolignans as the major components of the extract. The HEVe attenuated gastric ulceration in all the different models of acute gastric ulcer, by enhancing gastroprotection through its antioxidant properties in vivo, and reducing also considerably the gastric secretion and total acidity. The HEVe also presented healing properties against the induced chronic ulceration process. On the other hand, the HEVe did not exhibit direct activity against H. pylori. CONCLUSION The HEVe exhibited significant gastroprotective/antiulcer effects and contain a relative high proportion of phenolic compounds, especially flavonoids, that could likely account, at least in part, for its pharmacological properties. The results justify its traditional usage and provided scientific evidence for its potential as a new herbal medicine to treat gastric ulcers.
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Affiliation(s)
- Guilherme Vieira Botelho de Almeida
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Cuiabá, MT 78060-900, Brazil
| | - Karuppusamy Arunachalam
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Cuiabá, MT 78060-900, Brazil
| | - Sikiru Olaitan Balogun
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Cuiabá, MT 78060-900, Brazil; Curso de Farmácia, Faculdade Noroeste do Mato Grosso, Associação Juinense de Ensino Superior (AJES), Juína, MT 78320-000, Brazil
| | - Eduarda Pavan
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Cuiabá, MT 78060-900, Brazil
| | - Sérgio Donizeti Ascêncio
- Laboratório de Pesquisa de Produtos Naturais, Faculdade de Medicina, Universidade Federal de Tocantins (UFT), Palmas, TO 77020-210, Brazil
| | - Ilsamar Mendes Soares
- Laboratório de Pesquisa de Produtos Naturais, Faculdade de Medicina, Universidade Federal de Tocantins (UFT), Palmas, TO 77020-210, Brazil
| | - Ana C Zanatta
- Laboratório de Bioprospecção de Produtos Naturais. Instituto de Biociências, Universidade Estadual Paulista (UNESP) - Campus do Litoral Paulista, São Vicente, SP 11330-900, Brazil; Departamento de Química Orgânica, Instituto de Química, Universidade Estadual Paulista (UNESP) - Campus Araraquara, Araraquara, SP 14800-060, Brazil
| | - Wagner Vilegas
- Laboratório de Bioprospecção de Produtos Naturais. Instituto de Biociências, Universidade Estadual Paulista (UNESP) - Campus do Litoral Paulista, São Vicente, SP 11330-900, Brazil
| | - Antonio Macho
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Cuiabá, MT 78060-900, Brazil
| | - Domingos Tabajara de Oliveira Martins
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Cuiabá, MT 78060-900, Brazil.
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Yu L, Hu P, Chen Y. Gas-Generating Nanoplatforms: Material Chemistry, Multifunctionality, and Gas Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801964. [PMID: 30066474 DOI: 10.1002/adma.201801964] [Citation(s) in RCA: 193] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/26/2018] [Indexed: 05/16/2023]
Abstract
The fast advances of theranostic nanomedicine enable the rational design and construction of diverse functional nanoplatforms for versatile biomedical applications, among which gas-generating nanoplatforms (GGNs) have emerged very recently as unique theranostic nanoplatforms for broad gas therapies. Here, the recent developments of the rational design and chemical construction of versatile GGNs for efficient gas therapies by either exogenous physical triggers or endogenous disease-environment responsiveness are reviewed. These gases involve some therapeutic gases that can directly change disease status, such as oxygen (O2 ), nitric oxide (NO), carbon monoxide (CO), hydrogen (H2 ), hydrogen sulfide (H2 S) and sulfur dioxide (SO2 ), and other gases such as carbon dioxide (CO2 ), dl-menthol (DLM), and gaseous perfluorocarbon (PFC) for supplementary assistance of the theranostic process. Abundant nanocarriers have been adopted for gas delivery into lesions, including poly(d,l-lactic-co-glycolic acid), micelles, silica/mesoporous silica, organosilica, MnO2 , graphene, Bi2 Se3 , upconversion nanoparticles, CaCO3 , etc. Especially, these GGNs have been successfully developed for versatile biomedical applications, including diagnostic imaging and therapeutic use. The biosafety issue, challenges faced, and future developments on the rational construction of GGNs are also discussed for further promotion of their clinical translation to benefit patients.
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Affiliation(s)
- Luodan Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ping Hu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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Barboza KRM, Coco LZ, Alves GM, Peters B, Vasquez EC, Pereira TMC, Meyrelles SS, Campagnaro BP. Gastroprotective effect of oral kefir on indomethacin-induced acute gastric lesions in mice: Impact on oxidative stress. Life Sci 2018; 209:370-376. [PMID: 30120965 DOI: 10.1016/j.lfs.2018.08.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/07/2018] [Accepted: 08/13/2018] [Indexed: 02/06/2023]
Abstract
AIMS This study investigated the gastroprotective effects and the systemic oxidative status of oral kefir pretreatment in albino mice submitted to acute gastric ulcer induced by indomethacin. MAIN METHODS Male Swiss mice were divided into three groups (n = 7): Vehicle (0.3 mL of whole milk/100 g body weight, pH adjusted to 5.0), Kefir (0.3 mL of kefir/100 g body weight) and Proton Pump Inhibitor (PPI, 30 mg/kg of lansoprazole), via gavage for 14 days. Animals were fasted for 16 h and treated orally with indomethacin (40 mg/kg). After 6 h the animals were euthanized, the blood samples were obtained and used for the determination of ROS production, oxidation of macromolecules and apoptosis. The stomachs were removed, opened by the greater curvature, and a macroscopic analysis of the gastric lesions was performed. KEY FINDINGS Our findings demonstrated that the symbiotic kefir significantly alleviated blood oxidative stress by reducing superoxide anion, hydrogen peroxide and hydroxyl/peroxynitrite radicals, thereby leading to reduced oxidative damage to macromolecules due to a decreased oxidative stress status in induced gastric lesions. These anti-oxidative properties might contribute favorably to the ulcer attenuation in the kefir group. SIGNIFICANCE Taken together, these findings support a significant role played by the antioxidant actions of kefir in counteracting the gastric damage induced by this cyclooxygenase inhibitor. It is also worthy to mention that, kefir also exerted the gastroprotective property partly by inhibiting oxidative systemic damage. Based on these considerations, it was implied that kefir might be a contributor for the ROS-scavenging effect.
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Affiliation(s)
- Kelly Ribeiro Moura Barboza
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil
| | - Larissa Zambom Coco
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil
| | - Gisele Maziero Alves
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil
| | - Beatriz Peters
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil
| | - Elisardo Corral Vasquez
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil.
| | - Thiago Melo Costa Pereira
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil; Federal Institute of Education, Science and Technology (IFES), Vila Velha, ES, Brazil
| | - Silvana Santos Meyrelles
- Laboratory of Translational Physiology, Health Sciences Center, Federal University of Espirito Santo (UFES), Vitoria, Brazil
| | - Bianca Prandi Campagnaro
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil.
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De Sales IRP, Formiga RDO, Machado FDF, Nascimento RF, Pessoa MMB, Barros MEFX, Vieira GC, Gadelha FAAF, Marinho AF, Barbosa Filho JM, Júnior RFDA, Antunes AA, Batista LM. Cytoprotective, antioxidant and anti-inflammatory mechanism related to antiulcer activity of Cissampelos sympodialis Eichl. in animal models. JOURNAL OF ETHNOPHARMACOLOGY 2018; 222:190-200. [PMID: 29704592 DOI: 10.1016/j.jep.2018.04.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 04/03/2018] [Accepted: 04/12/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The leaves and roots of Cissampelos sympodialis (Menispermaceae) are used by indian tribes and in folk medicine to treat genitourinary infections, inflammation, asthma and gastrointestinal disorders. MATERIAL AND METHODS The standardized ethanolic extract (Cs-EtOHE) and alkaloids total fraction (Cs-TAF) obtained from aerial parts of C. sympodialis were evaluated in several models of acute gastric ulcers. The antisecretory and/or neutralizing mechanisms of the gastric acid secretion, cytoprotective, antioxidant and immunoregulatory mechanisms were also evaluated. RESULTS Cs-EtOHE and Cs-TAF presented a reduction in gastric mucosa lesions against ethanol, NSAIDs, hypothermic restraint-stress and gastric juice containment induced ulcer models. This activity is related to alkaloids present in the extract, and involves the participation of sulfhydryl compounds, nitric oxide, KATP channels, prostaglandins, decreased levels of IL-1β and TNF-α and increased levels of GSH and IL-10. CONCLUSION The data indicate gastroprotective activity, due to the participation of the cytoprotective, antioxidant and immunoregulatory mechanisms.
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Affiliation(s)
- Igor Rafael Praxedes De Sales
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Rodrigo De Oliveira Formiga
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Flávia Danniele Frota Machado
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Raphaela Francelino Nascimento
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Matheus Marley Bezerra Pessoa
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Monique Emanuela Frutuoso Xavier Barros
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Giciane Carvalho Vieira
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Francisco Allysson Assis Ferreira Gadelha
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Alexsandro Fernandes Marinho
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - José Maria Barbosa Filho
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
| | - Raimundo Fernandes De Araújo Júnior
- Department of Biophysics and Pharmacology and Department of Morphology, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil.
| | - Aurigena Araújo Antunes
- Department of Biophysics and Pharmacology and Department of Morphology, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil.
| | - Leônia Maria Batista
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba (UFPB), João Pessoa 58051-970, PB, Brazil.
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de Araújo S, Oliveira AP, Sousa FBM, Souza LKM, Pacheco G, Filgueiras MC, Nicolau LAD, Brito GAC, Cerqueira GS, Silva RO, Souza MHLP, Medeiros JVR. AMPK activation promotes gastroprotection through mutual interaction with the gaseous mediators H 2S, NO, and CO. Nitric Oxide 2018; 78:60-71. [PMID: 29857061 DOI: 10.1016/j.niox.2018.05.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/25/2018] [Accepted: 05/29/2018] [Indexed: 12/17/2022]
Abstract
Activation of 5' adenosine monophosphate-activated protein kinase (AMPK) stimulates production of the gaseous mediators nitric oxide (NO) and carbon monoxide (CO), which are involved in mucosal defense and gastroprotection. As AMPK itself has gastroprotective effects against several gastric ulcer etiologies, in the present study, we aimed to elucidate whether AMPK may also prevent ethanol-induced injury and play a key role in the associated gastroprotection mediated by hydrogen sulfide (H2S), NO, and CO. Mice were pretreated with AICAR (20 mg/kg, an AMPK activator) alone or with 50% ethanol. Other groups were pretreated with respective gaseous mediator inhibitors PAG, l-NAME, or ZnPP IX 30 min prior to AICAR, or with gaseous mediator donors NaHS, Lawesson's reagent and l-cysteine (H2S), SNP, l-Arginine (NO), Hemin, or CORM-2 (CO) 30 min prior to ethanol with or without compound C (10 mg/kg, a non-selective AMPK inhibitor). H2S, nitrate/nitrite (NO3-/NO2-), bilirubin levels, GSH and MDA concentration were evaluated in the gastric mucosa. The gastric mucosa was also collected for histopathological analysis and AMPK expression assessment by immunohistochemistry. Pretreatment with AICAR attenuated the ethanol-induced injury and increased H2S and bilirubin levels but not NO3-/NO2- levels in the gastric mucosa. In addition, inhibition of H2S, NO, or CO synthesis exacerbated the ethanol-induced gastric damage and inhibited the gastroprotection by AICAR. Pretreatment with compound C reversed the gastroprotective effect of NaHS, Lawesson's reagent, l-cysteine, SNP, l-Arginine, CORM-2, or Hemin. Compound C also reversed the effect of NaHS on H2S production, SNP on NO3-/NO2- levels, and Hemin on bilirubin levels. Immunohistochemistry revealed that AMPK is present at basal levels mainly in the gastric mucosa cells, and was increased by pretreatment with NaHS, SNP, and CORM-2. In conclusion, our findings indicate that AMPK activation exerts gastroprotection against ethanol-induced gastric damage and mutually interacts with H2S, NO, or CO to facilitate this process.
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Affiliation(s)
- Simone de Araújo
- Laboratory of Pharmacology of Inflammation and Gastrointestinal Disorders (LAFIDG), Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Ana P Oliveira
- Laboratory of Pharmacology of Inflammation and Gastrointestinal Disorders (LAFIDG), Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Francisca B M Sousa
- Laboratory of Pharmacology of Inflammation and Gastrointestinal Disorders (LAFIDG), Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Luan K M Souza
- Laboratory of Pharmacology of Inflammation and Gastrointestinal Disorders (LAFIDG), Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Gabriella Pacheco
- Laboratory of Pharmacology of Inflammation and Gastrointestinal Disorders (LAFIDG), Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Marcelo C Filgueiras
- Laboratory of Pharmacology of Inflammation and Gastrointestinal Disorders (LAFIDG), Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Lucas A D Nicolau
- Departments of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Gerly Anne C Brito
- Postgraduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University Ceará, Fortaleza, Ceará, Brazil
| | - Gilberto S Cerqueira
- Postgraduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University Ceará, Fortaleza, Ceará, Brazil
| | - Renan O Silva
- Departments of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marcellus H L P Souza
- Departments of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Jand Venes R Medeiros
- Laboratory of Pharmacology of Inflammation and Gastrointestinal Disorders (LAFIDG), Federal University of Piauí, Parnaíba, Piauí, Brazil.
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Szabo C. A timeline of hydrogen sulfide (H 2S) research: From environmental toxin to biological mediator. Biochem Pharmacol 2018; 149:5-19. [PMID: 28947277 PMCID: PMC5862769 DOI: 10.1016/j.bcp.2017.09.010] [Citation(s) in RCA: 155] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 09/20/2017] [Indexed: 02/07/2023]
Abstract
The history of H2S - as an environmental toxin - dates back to 1700, to the observations of the Italian physician Bernardino Ramazzini, whose book "De Morbis Artificum Diatriba" described the painful eye irritation and inflammation of "sewer gas" in sewer workers. The gas has subsequently been identified as hydrogen sulfide (H2S), and opened three centuries of research into the biological roles of H2S. The current article highlights the key discoveries in the field of H2S research, including (a) the toxicological studies, which characterized H2S as an environmental toxin, and identified some of its modes of action, including the inhibition of mitochondrial respiration; (b) work in the field of bacteriology, which, starting in the early 1900s, identified H2S as a bacterial product - with subsequently defined roles in the regulation of periodontal disease (oral bacterial flora), intestinal epithelial cell function (enteral bacterial flora) as well as in the regulation of bacterial resistance to antibiotics; and (c), work in diverse fields of mammalian biology, which, starting in the 1940s, identified H2S as an endogenous mammalian enzymatic product, the functions of which - among others, in the cardiovascular and nervous system - have become subjects of intensive investigation for the last decade. The current review not only enumerates the key discoveries related to H2S made over the last three centuries, but also compiles the most frequently cited papers in the field which have been published over the last decade and highlights some of the current 'hot topics' in the field of H2S biology.
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Affiliation(s)
- Csaba Szabo
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA.
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Gastroprotective Mechanism and Ulcer Resolution Effect of Cyrtocarpa procera Methanolic Extract on Ethanol-Induced Gastric Injury. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:2862706. [PMID: 29507589 PMCID: PMC5817374 DOI: 10.1155/2018/2862706] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 11/29/2017] [Indexed: 12/30/2022]
Abstract
Gastric ulcers are a worldwide health problem and their poor healing is one of the most important causes for their recurrence. We have previously reported the remarkable gastroprotective and anti-Helicobacter pylori activities of the methanolic extract (CpMet) of Cyrtocarpa procera bark. This work investigates, in a murine model, the CpMet gastroprotective mechanism and establishes its preclinical efficacy in the resolution of ethanol-induced gastric ulcers. The results showed that the gastroprotective activity of CpMet is mainly associated with endogenous NO and prostaglandins, followed by sulfhydryl groups and KATP channels. Furthermore, CpMet (300 mg/kg, twice a day) orally administered during 20 consecutive days promoted an ulcer area reduction of 62.65% at the 20th day of the treatment. The effect was confirmed macroscopically by the alleviation of gastric mucosal erosions and microscopically by an increase in mucin content and a reduction in the inflammatory infiltration at the site of the ulcer. No clinical symptoms or signs of toxicity were observed in the treated animals. The results indicate the safety and efficacy of CpMet in promoting high quality of ulcer healing by different mechanisms, but mostly through cytoprotective and anti-inflammatory effects, making it a promising phytodrug for ulcer treatment.
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Aragão TP, Prazeres LDKTD, Brito SA, Neto PJR, Rolim LA, Almeida JRGDS, Caldas GFR, Wanderley AG. Contribution of Secondary Metabolites to the Gastroprotective Effect of Aqueous Extract of Ximenia americana L. (Olacaceae) Stem Bark in Rats. Molecules 2018; 23:E112. [PMID: 29315228 PMCID: PMC6017445 DOI: 10.3390/molecules23010112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/27/2017] [Accepted: 01/04/2018] [Indexed: 02/07/2023] Open
Abstract
Ximenia americana L. (Olacaceae) is used in ethnomedicine as cicatrizant and for the treatment of gastric disorders. This study identified the chemical constituents of the aqueous extract of X. americana (XaAE) and evaluated its antiulcerogenic activity. After lyophilization, XaAE was analyzed by liquid chromatography-mass spectrometry (LC-MS) and its antiulcerogenic effect was evaluated in acute gastric lesions induced by ethanol, acidified ethanol, and indomethacin. Antisecretory action, mucus production and the participation of sulfhydryl groups (-SH) and nitric oxide (NO) were also investigated. The chromatographic analysis identified procyanidins B and C and catechin/epicatechin as major compounds. Oral administration of XaAE (100, 200 and 400 mg/kg) inhibited the gastric lesions induced by ethanol (76.1%, 77.5% and 100%, respectively), acidified ethanol (44.9%, 80.6% and 94.9%, respectively) and indomethacin (56.4%, 52.7% and 64.9%, respectively). XaAE reduced gastric contents and acidity (51.4% and 67.7%, respectively) but did not alter the production of gastric mucus. The reduction of the -SH and NO groups promoted by N-ethylmaleimide (NEM) and Nω-nitro-l-arginine-methyl-ester (L-NAME) respectively, reduced the gastroprotective effect of XaAE. In conclusion, XaAE has gastroprotective activity mediated in part by -SH, NO and antisecretory activity. This antiulcer action was initially correlated to its major constituents, procyanidins B and C and catechin/epicatechin.
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Affiliation(s)
- Ticiana Parente Aragão
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife 50740-521, PE, Brazil.
- Department of Nutrition, University of Pernambuco, Petrolina 56328-903, PE, Brazil.
| | | | - Samara Alves Brito
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife 50740-521, PE, Brazil.
| | - Pedro José Rolim Neto
- Laboratory of Medication Technology, Federal University of Pernambuco, Recife 50740-521, PE, Brazil.
| | - Larissa Araújo Rolim
- Central of Analysis of Drugs, Medicines and Food, Federal University of San Francisco Valley, Petrolina 56304-205, PE, Brazil.
| | | | - Germana Freire Rocha Caldas
- Graduate Program in Health Sciences, Biological and Health Sciences Center, Federal University of Maranhão, São Luís 65080-805, MA, Brazil.
| | - Almir Gonçalves Wanderley
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife 50740-521, PE, Brazil.
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife 50670-901, PE, Brazil.
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Magierowski M, Hubalewska-Mazgaj M, Magierowska K, Wojcik D, Sliwowski Z, Kwiecien S, Brzozowski T. Nitric oxide, afferent sensory nerves, and antioxidative enzymes in the mechanism of protection mediated by tricarbonyldichlororuthenium(II) dimer and sodium hydrosulfide against aspirin-induced gastric damage. J Gastroenterol 2018; 53:52-63. [PMID: 28238019 DOI: 10.1007/s00535-017-1323-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/10/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND Aspirin exerts side effects within the gastrointestinal tract. Hydrogen sulfide (H2S) and carbon monoxide (CO) have been implicated in gastroprotection but the mechanism of beneficial action of these gaseous mediators against aspirin-induced damage has not been fully studied. We determined the involvement of afferent sensory neurons, calcitonin-gene-related peptide (CGRP), lipid peroxidation, and nitric oxide (NO) biosynthesis in gastroprotection of H2S-releasing NaHS and CO-releasing tricarbonyldichlororuthenium(II) dimer (CORM-2) against aspirin-induced injury. METHODS Wistar rats with or without capsaicin-induced denervation of sensory neurons were pretreated with vehicle, CORM-2 (5 mg/kg intragastrically), or NaHS (5 mg/kg intragastrically) with or without capsazepine (5 mg/kg intragastrically) or N G-nitro-L-arginine (L-NNA, 20 mg/kg intraperitoneally). The areas of aspirin-induced lesions and gastric blood flow (GBF) were assessed by planimetry and laser flowmetry respectively. Gastric mucosal messenger RNA and/or protein expression of CGRP, heme oxygenase 1, inducible nitric oxide synthase, cyclooxygenase 2, interleukin-1β, glutathione peroxidase 1 (GPx-1), and superoxide dismutase was determined by real-time PCR or Western blot. Malondialdehyde (MDA) and 4-hydroxynonenal (4-HNE) content was determined by colorimetric assay. RESULTS Aspirin caused gastric lesions, decreased GBF, and raised MDA content, but pretreatment with NaHS and CORM-2 reduced these effects. Capsaicin-induced denervation or co-treatment with capsazepine reversed the gastroprotective and vasodilatory effects of NaHS but not those of CORM-2. L-NNA reversed NaHS-induced gastroprotection and partly reduced CORM-2-induced gastroprotection. NaHS and CORM-2 decreased MDA and 4-HNE content, restoring GPx-1 protein expression. CONCLUSIONS We conclude that H2S- but not CO-mediated gastroprotection against aspirin-induced injury involves afferent sensory nerves and partly NO activity. NaHS and CORM-2 prevented aspirin-induced gastric mucosal lipid peroxidation via restoration of microcirculation and antioxidative GPx-1 protein expression.
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Affiliation(s)
- Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland.
| | - Magdalena Hubalewska-Mazgaj
- Department of Genetic Research and Nutrigenomics, Malopolska Centre of Biotechnology, Jagiellonian University, 7A Gronostajowa Street, 30-387, Cracow, Poland
| | - Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland
| | - Dagmara Wojcik
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland
| | - Zbigniew Sliwowski
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland
| | - Slawomir Kwiecien
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland
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60
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Sestito S, Nesi G, Pi R, Macchia M, Rapposelli S. Hydrogen Sulfide: A Worthwhile Tool in the Design of New Multitarget Drugs. Front Chem 2017; 5:72. [PMID: 29021980 PMCID: PMC5623673 DOI: 10.3389/fchem.2017.00072] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 09/15/2017] [Indexed: 12/26/2022] Open
Abstract
H2S is a gaseous molecule able to trigger a plethora of central physiological and pharmacological effects as antioxidant, pro- and anti-inflammatory, pro- and anti-nociceptive, neuromodulator, and cytoprotective. The polypharmacology of H2S depends on the wide variety of targets implicated, but, despite the efforts, the mechanisms of action that should clarify its activity are still not completely unrevealed. Nevertheless, many attempts to exploit the multifaceted profile of this molecule have already been accomplished and many chemical entities containing an H2S-releasing pharmacophore have been synthetized. Here we discuss recent investigations on multitarget molecules able to release H2S, with a particular focus on the combinations of "native drug" with moieties structurally able to release H2S and their applications as therapeutic tools in bone disease, gastrointestinal system and neurodegenerative disorders.
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Affiliation(s)
| | - Giulia Nesi
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | - Rongbiao Pi
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China.,International Joint Laboratory (SYSU-PolyU HK) of Novel Anti-Dementia Drugs of Guangdong, Guangzhou, China.,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Marco Macchia
- Department of Pharmacy, University of Pisa, Pisa, Italy
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Barton LL, Ritz NL, Fauque GD, Lin HC. Sulfur Cycling and the Intestinal Microbiome. Dig Dis Sci 2017; 62:2241-2257. [PMID: 28766244 DOI: 10.1007/s10620-017-4689-5] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 07/19/2017] [Indexed: 02/08/2023]
Abstract
In this review, we focus on the activities transpiring in the anaerobic segment of the sulfur cycle occurring in the gut environment where hydrogen sulfide is produced. While sulfate-reducing bacteria are considered as the principal agents for hydrogen sulfide production, the enzymatic desulfhydration of cysteine by heterotrophic bacteria also contributes to production of hydrogen sulfide. For sulfate-reducing bacteria respiration, molecular hydrogen and lactate are suitable as electron donors while sulfate functions as the terminal electron acceptor. Dietary components provide fiber and macromolecules that are degraded by bacterial enzymes to monomers, and these are fermented by intestinal bacteria with the production to molecular hydrogen which promotes the metabolic dominance by sulfate-reducing bacteria. Sulfate is also required by the sulfate-reducing bacteria, and this can be supplied by sulfate- and sulfonate-containing compounds that are hydrolyzed by intestinal bacterial with the release of sulfate. While hydrogen sulfide in the intestinal biosystem may be beneficial to bacteria by increasing resistance to antibiotics, and protecting them from reactive oxygen species, hydrogen sulfide at elevated concentrations may become toxic to the host.
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Affiliation(s)
- Larry L Barton
- Department of Biology, MSCO3 2020, University of New Mexico, Albuquerque, NM, 87131, USA.
| | - Nathaniel L Ritz
- New Mexico VA Health Care System, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Guy D Fauque
- CNRS, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, Aix-Marseille Université, Université de Toulon, Campus de Luminy, Case 901, 13288, Marseille Cedex 09, France
| | - Henry C Lin
- New Mexico VA Health Care System, University of New Mexico, Albuquerque, NM, 87131, USA
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Magierowski M, Magierowska K, Hubalewska-Mazgaj M, Sliwowski Z, Ginter G, Pajdo R, Chmura A, Kwiecien S, Brzozowski T. Carbon monoxide released from its pharmacological donor, tricarbonyldichlororuthenium (II) dimer, accelerates the healing of pre-existing gastric ulcers. Br J Pharmacol 2017; 174:3654-3668. [PMID: 28768046 DOI: 10.1111/bph.13968] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/10/2017] [Accepted: 07/25/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND AND PURPOSE Carbon monoxide (CO), a gaseous mediator produced by haem oxygenases (HOs), has been shown to prevent stress-, ethanol-, aspirin- and alendronate-induced gastric damage; however, its role in gastric ulcer healing has not been fully elucidated. We investigated whether CO released from tricarbonyldichlororuthenium (II) dimer (CORM-2) can affect gastric ulcer healing and determined the mechanisms involved in this healing action. EXPERIMENTAL APPROACH Gastric ulcers were induced in Wistar rats by serosal application of acetic acid. Animals received 9 days of treatment with RuCl3 [2.5 mg·kg-1 intragastrically (i.g.)], haemin (5 mg·kg-1 i.g.), CORM-2 (0.1-10 mg·kg-1 i.g.) administered alone or with zinc protoporphyrin IX (ZnPP, 10 mg·kg-1 i.g.), 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ, 5 mg·kg-1 i.g.), NG -nitro-l-arginine (l-NNA, 15 mg·kg-1 i.g.), indomethacin (5 mg·kg-1 i.g.) or glibenclamide (10 mg·kg-1 i.g.). Gastric ulcer area and gastric blood flow (GBF) were assessed planimetrically, microscopically and by laser flowmeter respectively. Gastric mRNA/protein expressions of EGF, EGF receptors, VEGFA, HOs, nuclear factor (erythroid-derived 2)-like 2 (Nrf2), COX-2, hypoxia-inducible factor (HIF)-1α and pro-inflammatory iNOS, IL-1β and TNF-α were determined by real-time PCR or Western blots. KEY RESULTS CORM-2 and haemin but not RuCl3 or ZnPP decreased ulcer size while increasing GBF. These effects were reduced by ODQ, indomethacin, l-NNA and glibenclamide. CORM-2 significantly decreased the expression of pro-inflammatory markers, Nrf2/HO1 and HIF-1α, and up-regulated EGF. CONCLUSIONS AND IMPLICATIONS CO released from CORM-2 or endogenously produced by the HO1/Nrf2 pathway accelerates gastric ulcer healing via an increase in GBF, an up-regulation in EGF expression and down-regulation of the inflammatory response.
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Affiliation(s)
- Marcin Magierowski
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Katarzyna Magierowska
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | | | - Zbigniew Sliwowski
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Grzegorz Ginter
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Robert Pajdo
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Anna Chmura
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Slawomir Kwiecien
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Tomasz Brzozowski
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
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H2S confers colonoprotection against TNBS-induced colitis by HO-1 upregulation in rats. Inflammopharmacology 2017; 26:479-489. [DOI: 10.1007/s10787-017-0382-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/22/2017] [Indexed: 12/31/2022]
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64
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Ajeigbe KO, Owonikoko WM, Egbe V, Iquere I, Adeleye G. Gastroprotective and mucosa homeostatic activities of coconut milk and water on experimentally induced gastropathies in male wistar rats. Tissue Cell 2017; 49:528-536. [PMID: 28844402 DOI: 10.1016/j.tice.2017.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 06/27/2017] [Accepted: 06/29/2017] [Indexed: 11/16/2022]
Abstract
In this biphasic study, 45 male wistar rats were divided into 9 groups. In Phase 1, Group 1 was treated with normal saline and served as the overall control, group 2 was treated with 95% Ethanol and represents the ulcer control, groups 3 and 4 received coconut water (CW; 4ml/100g BWt) and milk (CM; 4ml/100g BWt) for 4weeks while group 5 received Omeprazole (Omep; 20mg/kg BWt) during terminal week. 95% Ethanol-induced ulceration followed the treatments in all except group 1. In the second phase, Group 1 was the overall control, group 2 served as ulcer control by receiving acetic acid only, group 3 received coconut milk, and group 4 received omep. CM and omep were administered post-ulcer induction for 3 and 6days twice daily. Blood collection after 1hour was through cardiac puncture for haemocytometry, and gastric tissues harvested for histopathological investigations. Results showed significantly reduced ulcer score and gastric lesion index in Omep, CW and CM groups compared to ulcer control. WBC, neutrophil, lymphocyte counts in Omep, CW and CM groups were significantly reduced compared to ulcer and overall control groups. C-reactive protein was significantly reduced in CM compared to control. Neutrophil Infiltration score reduced while mucus cell density increased significantly in Omep; CM compared to control. EGFR and CD 31 assessment revealed significantly higher expressions in coconut-milk group compared to the ulcer control. We conclude that the protective effects of coconut (water and milk) is expressed by inflammation suppression, upregulation of mucus cell population and catalyses mucosa homeostasis via angiogenesis and mucosal cell proliferation following mucosa. erosion.
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Affiliation(s)
- K O Ajeigbe
- Igbinedion University, Okada, Edo State, Nigeria
| | | | - V Egbe
- Igbinedion University, Okada, Edo State, Nigeria
| | - I Iquere
- Igbinedion University, Okada, Edo State, Nigeria
| | - G Adeleye
- Ekiti state University, Ado Ekiti, Ekiti State, Nigeria
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de Oliveira GA, Cheng RYS, Ridnour LA, Basudhar D, Somasundaram V, McVicar DW, Monteiro HP, Wink DA. Inducible Nitric Oxide Synthase in the Carcinogenesis of Gastrointestinal Cancers. Antioxid Redox Signal 2017; 26:1059-1077. [PMID: 27494631 PMCID: PMC5488308 DOI: 10.1089/ars.2016.6850] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
SIGNIFICANCE Gastrointestinal (GI) cancer taken together constitutes one of the most common cancers worldwide with a broad range of etiological mechanisms. In this review, we have examined the impact of nitric oxide (NO) on the etiology of colon, colorectal, gastric, esophageal, and liver cancers. Recent Advances: Despite differences in etiology, initiation, and progression, chronic inflammation has been shown to be a common element within these cancers showing interactions of numerous pathways. NO generated at the inflammatory site contributes to the initiation and progression of disease. The amount of NO generated, time, and site vary and are an important determinant of the biological effects initiated. Among the nitric oxide synthase enzymes, the inducible isoform has the most diverse range, participating in numerous carcinogenic processes. There is emerging evidence showing that inducible nitric oxide synthase (NOS2) plays a central role in the process of tumor initiation and/or development. CRITICAL ISSUES Redox inflammation through NOS2 and cyclooxygenase-2 participates in driving the mechanisms of initiation and progression in GI cancers. FUTURE DIRECTIONS Understanding the underlying mechanism involved in NOS2 activation can provide new insights into important prevention and treatment strategies. Antioxid. Redox Signal. 26, 1059-1077.
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Affiliation(s)
- Graciele Almeida de Oliveira
- 1 Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, Maryland
| | - Robert Y S Cheng
- 1 Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, Maryland
| | - Lisa A Ridnour
- 1 Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, Maryland
| | - Debashree Basudhar
- 1 Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, Maryland
| | - Veena Somasundaram
- 1 Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, Maryland
| | - Daniel W McVicar
- 1 Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, Maryland
| | - Hugo Pequeno Monteiro
- 2 Laboratório de Sinalização Celular, Universidade Federal de São Paulo , São Paulo, Brazil
| | - David A Wink
- 1 Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, Maryland
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Han T, Tang Y, Li J, Xue B, Gong L, Li J, Yu X, Liu C. Nitric oxide donor protects against acetic acid-induced gastric ulcer in rats via S-nitrosylation of TRPV1 on vagus nerve. Sci Rep 2017; 7:2063. [PMID: 28522805 PMCID: PMC5437002 DOI: 10.1038/s41598-017-02275-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 04/10/2017] [Indexed: 12/19/2022] Open
Abstract
This study was conducted to investigate the effects of nitric oxide (NO) in acetic acid-induced gastric ulcer of rats and the underlying mechanisms. We found that peritoneal injection of sodium nitroprusside (SNP), a NO donor, decreased the ulcer area, inflammatory cell infiltration and MPO degree in acetic acid-induced gastric ulcer in rats. This effect was abolished by a transient receptor potential vanilloid 1 (TRPV1) antagonist or prior subdiaphragmatic vagotomy. SNP increased the jejunal mesenteric afferent discharge in a dose-depended manner, which was largely diminished by pretreatment of S-nitrosylation blocker N-ethylmaleimide, TRPV1 antagonist capsazepine, genetic deletion of TRPV1, or vagotomy. Whole-cell patch clamp recording showed that SNP depolarized the resting membrane potential of NG neurons, and enhanced capsaicin-induced inward current, which were both blocked by N-ethylmaleimide. Our results suggest that NO donor SNP alleviates acetic acid-induced gastric ulcer in rats via vagus nerve, while S-nitrosylation of TRPV1 may participate in this route. Our findings reveal a new mechanism for vagal afferent activation, and a new potential anti-inflammatory target.
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Affiliation(s)
- Ting Han
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China
| | - Yan Tang
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China
| | - Jing Li
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China
| | - Bing Xue
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China
| | - Liping Gong
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China
| | - Jingxin Li
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China
| | - Xiao Yu
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China
| | - Chuanyong Liu
- Department of Physiology, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China. .,Provincial Key Lab of Mental Disorder, School of Basic Medical Sciences, Shandong University Cheeloo Medical College, Shandong, China.
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67
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Li J, Liu Y, Kim E, March JC, Bentley WE, Payne GF. Electrochemical reverse engineering: A systems-level tool to probe the redox-based molecular communication of biology. Free Radic Biol Med 2017; 105:110-131. [PMID: 28040473 DOI: 10.1016/j.freeradbiomed.2016.12.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 12/06/2016] [Accepted: 12/20/2016] [Indexed: 12/20/2022]
Abstract
The intestine is the site of digestion and forms a critical interface between the host and the outside world. This interface is composed of host epithelium and a complex microbiota which is "connected" through an extensive web of chemical and biological interactions that determine the balance between health and disease for the host. This biology and the associated chemical dialogues occur within a context of a steep oxygen gradient that provides the driving force for a variety of reduction and oxidation (redox) reactions. While some redox couples (e.g., catecholics) can spontaneously exchange electrons, many others are kinetically "insulated" (e.g., biothiols) allowing the biology to set and control their redox states far from equilibrium. It is well known that within cells, such non-equilibrated redox couples are poised to transfer electrons to perform reactions essential to immune defense (e.g., transfer from NADH to O2 for reactive oxygen species, ROS, generation) and protection from such oxidative stresses (e.g., glutathione-based reduction of ROS). More recently, it has been recognized that some of these redox-active species (e.g., H2O2) cross membranes and diffuse into the extracellular environment including lumen to transmit redox information that is received by atomically-specific receptors (e.g., cysteine-based sulfur switches) that regulate biological functions. Thus, redox has emerged as an important modality in the chemical signaling that occurs in the intestine and there have been emerging efforts to develop the experimental tools needed to probe this modality. We suggest that electrochemistry provides a unique tool to experimentally probe redox interactions at a systems level. Importantly, electrochemistry offers the potential to enlist the extensive theories established in signal processing in an effort to "reverse engineer" the molecular communication occurring in this complex biological system. Here, we review our efforts to develop this electrochemical tool for in vitro redox-probing.
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Affiliation(s)
- Jinyang Li
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Yi Liu
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Eunkyoung Kim
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - John C March
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Gregory F Payne
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA.
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Magierowski M, Magierowska K, Hubalewska-Mazgaj M, Sliwowski Z, Pajdo R, Ginter G, Kwiecien S, Brzozowski T. Exogenous and Endogenous Hydrogen Sulfide Protects Gastric Mucosa against the Formation and Time-Dependent Development of Ischemia/Reperfusion-Induced Acute Lesions Progressing into Deeper Ulcerations. Molecules 2017; 22:molecules22020295. [PMID: 28212299 PMCID: PMC6155792 DOI: 10.3390/molecules22020295] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/06/2017] [Accepted: 02/11/2017] [Indexed: 12/14/2022] Open
Abstract
Hydrogen sulfide (H2S) is an endogenous mediator, synthesized from l-cysteine by cystathionine γ-lyase (CSE), cystathionine β-synthase (CBS) or 3-mercaptopyruvate sulfurtransferase (3-MST). The mechanism(s) involved in H2S-gastroprotection against ischemia/reperfusion (I/R) lesions and their time-dependent progression into deeper gastric ulcerations have been little studied. We determined the effect of l-cysteine, H2S-releasing NaHS or slow H2S releasing compound GYY4137 on gastric blood flow (GBF) and gastric lesions induced by 30 min of I followed by 3, 6, 24 and 48 h of R. Role of endogenous prostaglandins (PGs), afferent sensory nerves releasing calcitonin gene-related peptide (CGRP), the gastric expression of hypoxia inducible factor (HIF)-1α and anti-oxidative enzymes were examined. Rats with or without capsaicin deactivation of sensory nerves were pretreated i.g. with vehicle, NaHS (18–180 μmol/kg) GYY4137 (90 μmol/kg) or l-cysteine (0.8–80 μmol/kg) alone or in combination with (1) indomethacin (14 μmol/kg i.p.), SC-560 (14 μmol/kg), celecoxib (26 μmol/kg); (2) capsazepine (13 μmol/kg i.p.); and (3) CGRP (2.5 nmol/kg i.p.). The area of I/R-induced gastric lesions and GBF were measured by planimetry and H2-gas clearance, respectively. Expression of mRNA for CSE, CBS, 3-MST, HIF-1α, glutathione peroxidase (GPx)-1, superoxide dismutase (SOD)-2 and sulfide production in gastric mucosa compromised by I/R were determined by real-time PCR and methylene blue method, respectively. NaHS and l-cysteine dose-dependently attenuated I/R-induced lesions while increasing the GBF, similarly to GYY4137 (90 μmol/kg). Capsaicin denervation and capsazepine but not COX-1 and COX-2 inhibitors reduced NaHS- and l-cysteine-induced protection and hyperemia. NaHS increased mRNA expression for SOD-2 and GPx-1 but not that for HIF-1α. NaHS which increased gastric mucosal sulfide release, prevented further progression of acute I/R injury into deeper gastric ulcers at 6, 24 and 48 h of R. We conclude that H2S-induced gastroprotection against I/R-injury is due to increase in gastric microcirculation, anti-oxidative properties and afferent sensory nerves activity but independent on endogenous prostaglandins.
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Affiliation(s)
- Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Magdalena Hubalewska-Mazgaj
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
- Department of Genetic Research and Nutrigenomics, Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Cracow, Poland.
| | - Zbigniew Sliwowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Robert Pajdo
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Grzegorz Ginter
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Slawomir Kwiecien
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
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Hydroalcoholic extract of Brazilian red propolis exerts protective effects on acetic acid-induced ulcerative colitis in a rodent model. Biomed Pharmacother 2017; 85:687-696. [DOI: 10.1016/j.biopha.2016.11.080] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/17/2016] [Accepted: 11/18/2016] [Indexed: 12/14/2022] Open
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70
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Functional and Molecular Insights of Hydrogen Sulfide Signaling and Protein Sulfhydration. J Mol Biol 2016; 429:543-561. [PMID: 28013031 DOI: 10.1016/j.jmb.2016.12.015] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/08/2016] [Accepted: 12/12/2016] [Indexed: 12/23/2022]
Abstract
Hydrogen sulfide (H2S), a novel gasotransmitter, is endogenously synthesized by multiple enzymes that are differentially expressed in the peripheral tissues and central nervous systems. H2S regulates a wide range of physiological processes, namely cardiovascular, neuronal, immune, respiratory, gastrointestinal, liver, and endocrine systems, by influencing cellular signaling pathways and sulfhydration of target proteins. This review focuses on the recent progress made in H2S signaling that affects mechanistic and functional aspects of several biological processes such as autophagy, inflammation, proliferation and differentiation of stem cell, cell survival/death, and cellular metabolism under both physiological and pathological conditions. Moreover, we highlighted the cross-talk between nitric oxide and H2S in several bilogical contexts.
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Bashandy SAEM, Omara EAA, Ebaid H, Amin MM, Soliman MS. Role of zinc as an antioxidant and anti-inflammatory to relieve cadmium oxidative stress induced testicular damage in rats. Asian Pac J Trop Biomed 2016. [DOI: 10.1016/j.apjtb.2016.08.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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72
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Magierowski M, Magierowska K, Hubalewska-Mazgaj M, Adamski J, Bakalarz D, Sliwowski Z, Pajdo R, Kwiecien S, Brzozowski T. Interaction between endogenous carbon monoxide and hydrogen sulfide in the mechanism of gastroprotection against acute aspirin-induced gastric damage. Pharmacol Res 2016; 114:235-250. [PMID: 27825819 DOI: 10.1016/j.phrs.2016.11.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 09/12/2016] [Accepted: 11/02/2016] [Indexed: 02/07/2023]
Abstract
Acetylsalicylic acid (ASA) is mainly recognized as painkiller or anti-inflammatory drug. However, ASA causes serious side effects towards gastrointestinal (GI) tract which limits its usefulness. Carbon monoxide (CO) and hydrogen sulfide (H2S) have been described to act as important endogenous messengers and mediators of gastroprotection but whether they can interact in gastroprotection against acute ASA-induced gastric damage remains unknown. In this study male Wistar rats were pretreated with 1) vehicle (saline, i.g.), 2) tricarbonyldichlororuthenium (II) dimer (CORM-2, 5mg/kg i.g.), 3) sodium hydrosulfide (NaHS, 5mg/kg i.g.), 4) zinc protoporphyrin (ZnPP, 10mg/kg i.p.), 5) D,L-propargylglycine (PAG, 30mg/kg i.g.), 6) ZnPP combined with NaHS, 7) PAG combined with CORM-2 or 8) 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ, 10mg/kg i.p.) combined with CORM-2 or NaHS and 30min later ASA was administered i.g. in a single dose of 125mg/kg. After 1h, gastric blood flow (GBF) was determined by H2 gas clearance technique and gastric lesions were assessed by planimetry and histology. CO content in gastric mucosa and COHb concentration in blood were determined by gas chromatography and H2S production was assessed in gastric mucosa using methylene blue method. Protein and/or mRNA expression for cystathionine-γ-lyase (CSE), cystathionine-β-synthase (CBS), 3-mercaptopyruvate sulfurtransferase (3-MST), heme oxygenase (HO)-1, HO-2, hypoxia inducible factor-alpha (HIF)-1α, nuclear factor (erythroid-derived 2)-like 2 (Nrf-2), cyclooxygenase (COX)-1 and COX-2, inducible nitric oxide synthase (iNOS) and interleukin (IL)-1β were determined by Western blot or real-time PCR, respectively. ASA caused hemorrhagic gastric mucosal damage and significantly decreased GBF, H2S production, CO content, mRNA or protein expression for CSE, 3-MST, HO-2 and increased mRNA and/or protein expression for CBS, HO-1, Nrf-2, HIF-1α, iNOS, IL-1β, COX-2 in gastric mucosa and COHb concentration in blood. Pretreatment with CORM-2 or NaHS but not with PAG decreased ASA-damage and increased GBF. ZnPP reversed protective and hyperemic effect of NaHS but PAG failed to affect CORM-2-induced gastroprotection. CORM-2 elevated CO content, mRNA or protein expression for HO-1, Nrf-2, and decreased expression of CBS, HIF-1α, COX-2, IL-1β, iNOS, the H2S production in gastric mucosa and COHb concentration in blood. NaHS raised mRNA or protein expression for CSE, COX-1 and decreased mRNA expression for IL-1β and COHb level in blood. We conclude that CO is involved in gastroprotection induced by H2S while beneficial protective action of CO released from CORM-2 in gastric mucosa seems to be H2S-independent. In contrast to H2S, CO ameliorates hypoxia, regulates Nrf-2 expression but similarly to H2S acts on sGC-dependent manner to restore gastric microcirculation and exhibit anti-inflammatory activity in gastric mucosa compromised by ASA.
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Affiliation(s)
- Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531 Cracow, Poland.
| | - Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531 Cracow, Poland
| | - Magdalena Hubalewska-Mazgaj
- Department of Genetic Research and Nutrigenomics, Malopolska Centre of Biotechnology, Jagiellonian University, 7A Gronostajowa Street, 30-387 Cracow, Poland
| | - Juliusz Adamski
- Department of Forensic Toxicology, Institute of Forensic Research, 9 Westerplatte Street, 31-033 Cracow, Poland
| | - Dominik Bakalarz
- Department of Forensic Toxicology, Institute of Forensic Research, 9 Westerplatte Street, 31-033 Cracow, Poland
| | - Zbigniew Sliwowski
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531 Cracow, Poland
| | - Robert Pajdo
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531 Cracow, Poland
| | - Slawomir Kwiecien
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531 Cracow, Poland
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531 Cracow, Poland
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Chen S, Bu D, Ma Y, Zhu J, Sun L, Zuo S, Ma J, Li T, Chen Z, Zheng Y, Wang X, Pan Y, Wang P, Liu Y. GYY4137 ameliorates intestinal barrier injury in a mouse model of endotoxemia. Biochem Pharmacol 2016; 118:59-67. [PMID: 27553476 DOI: 10.1016/j.bcp.2016.08.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 08/15/2016] [Indexed: 01/13/2023]
Abstract
Intestinal barrier injury has been reported to play a vital role in the pathogenesis of endotoxemia. This study aimed to investigate the protective effect of GYY4137, a newly synthesized H2S donor, on the intestinal barrier function in the context of endotoxemia both in vitro and in vivo. Caco-2 (a widely used human colon cancer cell line in the study of intestinal epithelial barrier function) monolayers incubated with lipopolysaccharide (LPS) or TNF-α/IFN-γ and a mouse model of endotoxemia were used in this study. The results suggested that GYY4137 significantly attenuated LPS or TNF-α/IFN-γ induced increased Caco-2 monolayer permeability. The decreased expression of TJ (tight junction) proteins induced by LPS and the altered localization of TJs induced by TNF-α/IFN-γ was significantly inhibited by GYY4137; similar results were obtained in vivo. Besides, GYY4137 promoted the clinical score and histological score of mice with endotoxemia. Increased level of TNF-α/IFN-γ in the plasma and increased apoptosis in colon epithelial cells was also attenuated by GYY4137 in mice with endotoxemia. This study indicates that GYY4137 preserves the intestinal barrier function in the context of endotoxemia via multipathways and throws light on the development of potential therapeutic approaches for endotoxemia.
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Affiliation(s)
- Shanwen Chen
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Dingfang Bu
- Central Laboratory, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Yuanyuan Ma
- Animal Experiment Center, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Jing Zhu
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Lie Sun
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Shuai Zuo
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Ju Ma
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Tengyu Li
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Zeyang Chen
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Youwen Zheng
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Xin Wang
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Yisheng Pan
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China
| | - Pengyuan Wang
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China.
| | - Yucun Liu
- Division of General Surgery, Peking University First Hospital, Peking University, 8 Xi ShiKu Street, Beijing 100034, People's Republic of China.
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The influence of novel 4-thiazolidinone derivaties in cytoprotective mechanisms of small intestine under nsaid-induced damage. UKRAINIAN BIOCHEMICAL JOURNAL 2016. [DOI: 10.15407/ubj88.si01.099] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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75
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Magierowska K, Magierowski M, Surmiak M, Adamski J, Mazur-Bialy AI, Pajdo R, Sliwowski Z, Kwiecien S, Brzozowski T. The Protective Role of Carbon Monoxide (CO) Produced by Heme Oxygenases and Derived from the CO-Releasing Molecule CORM-2 in the Pathogenesis of Stress-Induced Gastric Lesions: Evidence for Non-Involvement of Nitric Oxide (NO). Int J Mol Sci 2016; 17:442. [PMID: 27023525 PMCID: PMC4848898 DOI: 10.3390/ijms17040442] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 03/18/2016] [Accepted: 03/18/2016] [Indexed: 02/08/2023] Open
Abstract
Carbon monoxide (CO) produced by heme oxygenase (HO)-1 and HO-2 or released from the CO-donor, tricarbonyldichlororuthenium (II) dimer (CORM-2) causes vasodilation, with unknown efficacy against stress-induced gastric lesions. We studied whether pretreatment with CORM-2 (0.1-10 mg/kg oral gavage (i.g.)), RuCl₃ (1 mg/kg i.g.), zinc protoporphyrin IX (ZnPP) (10 mg/kg intraperitoneally (i.p.)), hemin (1-10 mg/kg i.g.) and CORM-2 (1 mg/kg i.g.) combined with N(G)-nitro-l-arginine (l-NNA, 20 mg/kg i.p.), 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ, 10 mg/kg i.p.), indomethacin (5 mg/kg i.p.), SC-560 (5 mg/kg i.g.), and celecoxib (10 mg/kg i.g.) affects gastric lesions following 3.5 h of water immersion and restraint stress (WRS). Gastric blood flow (GBF), the number of gastric lesions and gastric CO and nitric oxide (NO) contents, blood carboxyhemoglobin (COHb) level and the gastric expression of HO-1, HO-2, hypoxia inducible factor 1α (HIF-1α), tumor necrosis factor α (TNF-α), cyclooxygenase (COX)-2 and inducible NO synthase (iNOS) were determined. CORM-2 (1 mg/kg i.g.) and hemin (10 mg/kg i.g.) significantly decreased WRS lesions while increasing GBF, however, RuCl₃ was ineffective. The impact of CORM-2 was reversed by ZnPP, ODQ, indomethacin, SC-560 and celecoxib, but not by l-NNA. CORM-2 decreased NO and increased HO-1 expression and CO and COHb content, downregulated HIF-1α, as well as WRS-elevated COX-2 and iNOS mRNAs. Gastroprotection by CORM-2 and HO depends upon CO's hyperemic and anti-inflammatory properties, but is independent of NO.
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Affiliation(s)
- Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Marcin Surmiak
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
- Division of Molecular Biology and Clinical Genetics, Department of Medicine, Jagiellonian University Medical College, 31-006 Cracow, Poland.
| | - Juliusz Adamski
- Department of Forensic Toxicology, Institute of Forensic Research, 31-033 Cracow, Poland.
| | - Agnieszka Irena Mazur-Bialy
- Department of Ergonomics and Exercise Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Robert Pajdo
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Zbigniew Sliwowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Slawomir Kwiecien
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
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Mard SA, Veisi A, Ahangarpour A, Gharib-Naseri MK. Mucosal acidification increases hydrogen sulfide release through up-regulating gene and protein expressions of cystathionine gamma-lyase in the rat gastric mucosa. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2016; 19:172-7. [PMID: 27081462 PMCID: PMC4818365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES This study was performed to investigate the effects of mucosal acidification on mRNA expression and protein synthesis of cystathionine gamma lyase (CSE), cystathionine beta synthase (CBS), and mucosal release of H2S in gastric mucosa in rats. MATERIALS AND METHODS Thirty-two rats were randomly assigned into 4 groups (8 in each), including: the control group, HCl (10 mM) treated group, HCl (100 mM) treated group, and one group to study the effect of Nω-Nitro-L-arginine methyl ester hydrochloride (L-NAME). Anesthetized rats underwent tracheostomy and midline laparotomy. Ninety min after the instillation of neutral or acidic solutions, animals were sacrificed and the gastric mucosa was collected to measure the H2S concentration by ELISA method and to quantify mRNA expression of CSE and CBS by quantitative real-time PCR (qRT-PCR). Protein synthesis was also detected by Western blot method. RESULTS Mucosal acidification with 10 and 100 HCl, significantly increased mucosal levels of H2S (P<0.01 and P<0.001) and mRNA (P<0.01 and P<0.001) and protein expressions of CSE (P<0.01 and P<0.001). L-NAME treatment reversed H2S release to control level. CONCLUSION Our findings indicated that mucosal acidification with HCl increased mucosal release of H2S through upregulation of CSE gene and its protein expression. This effect is mainly mediated through the involvement of nitric oxide.
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Affiliation(s)
- Seyyed Ali Mard
- Physiology Research Center, Research Center for Infectious Diseases of Digestive System, Department of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran,Corresponding author: Seyyed Ali Mard. Physiology Research Center, Research Center for Infectious Diseases of Digestive System, Department of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Tel: +98-611-3362411; Fax: +98-611-3362411; or
| | - Ali Veisi
- Physiology Research Center, Department of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Akram Ahangarpour
- Physiology Research Center, Department of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Kazem Gharib-Naseri
- Physiology Research Center, Department of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Hydrogen Sulfide and Carbon Monoxide Protect Gastric Mucosa Compromised by Mild Stress Against Alendronate Injury. Dig Dis Sci 2016; 61:3176-3189. [PMID: 27541924 PMCID: PMC5067292 DOI: 10.1007/s10620-016-4280-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 08/10/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND Alendronate is an inhibitor of osteoclast-mediated bone resorption, but its clinical utility is limited due to gastrointestinal complications including bleeding erosions. AIMS We studied whether potent vasodilators hydrogen sulfide (H2S) and carbon monoxide (CO) can protect against alendronate-induced gastric lesions in rats exposed to mild stress. METHODS Three series (A, B, and C) of Wistar rats received alendronate (150-700 mg/kg i.g., series A) with or without NaHS (5 mg/kg), H2S donor or CORM-2 (5 mg/kg) releasing CO administered i.g. 30 min before alendronate administration (series B) in rats exposed for 3 days before alendronate administration to mild stress (series C). The area of gastric lesions was assessed by planimetry, the gastric blood flow (GBF) was determined by H2-gas clearance technique, and H2S production via CSE/CBS/3-MST activity and the gastric expression of HO-1, HO-2, HIF-1α, NF-κB, iNOS, COX-2, IL-1β, TNF-α, GPx-1 and SOD-2 were analyzed by qPCR or Western blot. RESULTS Alendronate dose-dependently produced gastric mucosal lesions and significantly decreased GBF, and these effects were exacerbated by mild stress. NaHS and CORM-2 significantly reduced the alendronate-induced gastric lesions in non-stressed and stressed animals, but only NaHS but not CORM-2 raised H2S production. NaHS and CORM-2 inhibited gastric expression of HIF-1α protein and HO-1, HIF-1α, NF-κB, COX-2, iNOS, IL-1β, TNF-α mRNAs but failed to affect those of HO-2, GPx-1, and SOD-2. CONCLUSION Both H2S and CO released from their donors, NaHS and CORM-2, protect gastric mucosa compromised by stress against alendronate-induced gastric damage via mechanism involving downregulation of HIF-1α, NF-κB and proinflammatory factors COX-2, iNOS, IL-1β, and TNF-α.
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Calderone V, Martelli A, Testai L, Citi V, Breschi MC. Using hydrogen sulfide to design and develop drugs. Expert Opin Drug Discov 2015; 11:163-75. [PMID: 26593865 DOI: 10.1517/17460441.2016.1122590] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Hydrogen sulfide (H2S) is an endogenous gasotransmitter, involved in the regulation of several biological functions. Conversely, impaired biosynthesis of H2S is associated with important diseases. This paves the way for exciting pharmacological perspectives for drugs acting on the 'H2S system'. AREAS COVERED At the beginning of this manuscript, the authors present the biological roles and mechanisms of action of hydrogen sulfide. The authors then discuss the developments in the modulation of the H2S system via heterogeneous molecules, which behave as sources of exogenous H2S, and are promising drugs for a number of diseases. EXPERT OPINION The rate of H2S generation, the physicochemical characteristics and the bioavailability greatly affect the overall pharmacological profile of each H2S-releasing compound. Therefore, the development of broad collections of original moieties endowed with heterogeneous rates/mechanisms of H2S release and a variety of physicochemical, biological and pharmacological features is the most timely and compelling issue in the field of H2S-based drug discovery.
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Affiliation(s)
| | - Alma Martelli
- a Dipartimento di Farmacia , Università di Pisa , Pisa , Italy
| | - Lara Testai
- a Dipartimento di Farmacia , Università di Pisa , Pisa , Italy
| | - Valentina Citi
- a Dipartimento di Farmacia , Università di Pisa , Pisa , Italy
| | - Maria C Breschi
- a Dipartimento di Farmacia , Università di Pisa , Pisa , Italy
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Gaseous mediator-based anti-inflammatory drugs. Curr Opin Pharmacol 2015; 25:1-6. [DOI: 10.1016/j.coph.2015.08.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 08/10/2015] [Indexed: 12/22/2022]
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Singh SB, Lin HC. Hydrogen Sulfide in Physiology and Diseases of the Digestive Tract. Microorganisms 2015; 3:866-89. [PMID: 27682122 PMCID: PMC5023273 DOI: 10.3390/microorganisms3040866] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 10/19/2015] [Accepted: 11/04/2015] [Indexed: 12/29/2022] Open
Abstract
Hydrogen sulfide (H2S) is a Janus-faced molecule. On one hand, several toxic functions have been attributed to H2S and exposure to high levels of this gas is extremely hazardous to health. On the other hand, H2S delivery based clinical therapies are being developed to combat inflammation, visceral pain, oxidative stress related tissue injury, thrombosis and cancer. Since its discovery, H2S has been found to have pleiotropic effects on physiology and health. H2S is a gasotransmitter that exerts its effect on different systems, such as gastrointestinal, neuronal, cardiovascular, respiratory, renal, and hepatic systems. In the gastrointestinal tract, in addition to H2S production by mammalian cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE), H2S is also generated by the metabolic activity of resident gut microbes, mainly by colonic Sulfate-Reducing Bacteria (SRB) via a dissimilatory sulfate reduction (DSR) pathway. In the gut, H2S regulates functions such as inflammation, ischemia/ reperfusion injury and motility. H2S derived from gut microbes has been found to be associated with gastrointestinal disorders such as ulcerative colitis, Crohn’s disease and irritable bowel syndrome. This underscores the importance of gut microbes and their production of H2S on host physiology and pathophysiology.
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Affiliation(s)
- Sudha B Singh
- Section of Gastroenterology, Medicine Service, New Mexico VA Health Care System, Albuquerque, NM 87108, USA.
- Division of Gastroenterology and Hepatology, Department of Medicine, the University of New Mexico, Albuquerque, NM 87131, USA.
| | - Henry C Lin
- Section of Gastroenterology, Medicine Service, New Mexico VA Health Care System, Albuquerque, NM 87108, USA.
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