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Duangjai A, Rawangkan A, Yosboonruang A, Ontawong A, Saokaew S, Goh BH, Suganuma M, Phisalprapa P. Antispasmodic Activity of Light-Roasted Coffee Extract and Its Potential Use in Gastrointestinal Motility Disorders. Foods 2024; 13:2307. [PMID: 39123499 PMCID: PMC11312256 DOI: 10.3390/foods13152307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/16/2024] [Accepted: 07/19/2024] [Indexed: 08/12/2024] Open
Abstract
Antispasmodic agents are crucial in managing gastrointestinal motility disorders by modulating muscle contractions and reducing symptoms like cramping and diarrhea. This study investigated the antispasmodic potential of different coffee bean extracts, including light coffee (LC), medium coffee (MC), and dark coffee (DC), on ileum contractions induced by potassium chloride (KCl), and elucidated their mechanisms of action using in vitro isolated tissue techniques. The results demonstrated that all coffee extracts reduced spontaneous contractions of rat ileum tissue in a dose-dependent manner. Among these, LC showed the most significant reduction in ileum contractions, particularly at higher concentrations. The key findings reveal that LC at 5 mg/mL significantly reduced CaCl2-induced contractions in isolated rat ileum tissue, indicating that LC may inhibit calcium influx or interfere with calcium signaling pathways. The presence of nifedipine, propranolol, and N-nitro-L-arginine methyl ester (L-NAME) have been confirmed in their involvement; they block calcium influx and calcium channels and activate β-adrenergic pathways as part of LC's mechanism of action. The presence of their active compounds, particularly chlorogenic acid and caffeine, likely contributes to the observed antispasmodic effects. These findings suggest that LC exerts its antispasmodic effects by targeting key mechanisms involved in muscle spasms and intestinal motility, providing a potential for managing such conditions.
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Affiliation(s)
- Acharaporn Duangjai
- Unit of Excellence in Research and Product Development of Coffee, Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand;
| | - Anchalee Rawangkan
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand or (A.R.); (A.Y.)
| | - Atchariya Yosboonruang
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand or (A.R.); (A.Y.)
| | - Atcharaporn Ontawong
- Unit of Excellence in Research and Product Development of Coffee, Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand;
| | - Surasak Saokaew
- Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand;
- Unit of Excellence on Clinical Outcomes Research and Integration (UNICORN), School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand
- Unit of Excellence on Herbal Medicine, School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand
- Division of Pharmacy Practice, Department of Pharmaceutical Care, School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Bey-Hing Goh
- Biofunctional Molecule Exploratory Research Group (BMEX), School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia;
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Sunway Biofunctional Molecules Discovery Centre, School of Medical and Life Sciences, Sunway University, Sunway City 47500, Malaysia
| | - Masami Suganuma
- Graduate School of Science and Engineering, Saitama University, Saitama 3388570, Japan;
| | - Pochamana Phisalprapa
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
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Makowska K, Całka J, Gonkowski S. Effects of the long-term influence of bisphenol A and bisphenol S on the population of nitrergic neurons in the enteric nervous system of the mouse stomach. Sci Rep 2023; 13:331. [PMID: 36609592 PMCID: PMC9822927 DOI: 10.1038/s41598-023-27511-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
Bisphenol A (BPA) is an endocrine disruptor commonly used in the production of plastics. Due to its relatively well-known harmful effects on living organisms, BPA is often replaced by its various analogues. One of them is bisphenol S (BPS), widely used in the plastics industry. Until recently, BPS was considered completely safe, but currently, it is known that it is not safe for various internal organs. However, knowledge about the influence of BPS on the nervous system is scarce. Therefore, the aim of this study was to investigate the influence of two doses of BPA and BPS on the enteric nitrergic neurons in the CD1 strain mouse stomach using the double-immunofluorescence technique. The study found that both substances studied increased the number of nitrergic neurons, although changes under the impact of BPS were less visible than those induced by BPA. Therefore, the obtained results, for the first time, clearly indicate that BPS is not safe for the innervation of the gastrointestinal tract.
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Affiliation(s)
- Krystyna Makowska
- Department of Clinical Diagnostics, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-957, Olsztyn, Poland.
| | - Jarosław Całka
- grid.412607.60000 0001 2149 6795Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland
| | - Sławomir Gonkowski
- grid.412607.60000 0001 2149 6795Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland
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Aloe vera gel attenuates acetic acid-induced ulcerative colitis in adult male Wistar rats. Toxicol Rep 2022; 9:640-646. [PMID: 35399219 PMCID: PMC8990044 DOI: 10.1016/j.toxrep.2022.03.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 11/22/2022] Open
Abstract
Ulcerative colitis is a disease of undetermined etiology and treatment. It affects the colon and rectum and typically involves the mucosa, manifesting as continuous areas of inflammation and ulceration. Aloe gel contains more than a hundred potentially active constituents of different classes. This study investigated the effect of aloe gel on experimentally-induced ulcerative colitis. Male Wistar rats were randomly allocated into groups A to F of six rats each. Ulcerative colitis was induced to rats in groups B to F by single intra-colonic administration of 2 mL of 4% acetic acid with a size 6F pediatrics catheter. In contrast, group A received an equivalent volume of normal saline by the same route. Twenty-four hours after induction, rats in groups B and C received normal saline and 1 mg/kg b. wt. daily dose of dexamethasone, respectively. In contrast, those in groups D, E, and F received 20, 40, and 60 mg/kg b. wt. doses of aloe gel, respectively, for 14 days. They were sacrificed 24 h after the last administration. We assessed disease progression by determining the clinical activity index, gross inflammation, histological alterations, the intensity of DNA in colon cells, and tissue level of nitric oxide. All the parameters but one increased significantly in group B rats. The quantitative distribution of DNA in colon cells reduced significantly in this group. Aloe gel doses significantly reversed these changes in a dose-dependent manner. Dexamethasone showed lesser efficacy relative to 60 mg dose of the Aloe gel extract. We conclude that Aloe vera gel has therapeutic potential in the treatment and management of ulcerative colitis. The most significant effects were observed in the groups treated with the highest dose of Aloe gel (60 mg/kg b. wt.). It is also worth noting that the remediated potential of aloe gel in acetic acid-induced UC surpasses that of dexamethasone.
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Tian B, Zhao Q, Xing H, Xu J, Li Z, Zhu H, Yang K, Sun P, Cai M. Gastroprotective Effects of Ganoderma lucidum Polysaccharides with Different Molecular Weights on Ethanol-Induced Acute Gastric Injury in Rats. Nutrients 2022; 14:nu14071476. [PMID: 35406089 PMCID: PMC9002462 DOI: 10.3390/nu14071476] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023] Open
Abstract
Ganoderma lucidum is known as a medicine food homology that can ameliorate gastrointestinal diseases. To evaluate the gastroprotective effects on different Ganoderma lucidum polysaccharides (GLPs), GLP was separated into three parts with different molecular weights using 100 kDa, 10 kDa, and 1 kDa membranes. The mitigation effects of different GLPs on ethanol-induced acute gastric injury were observed in rats. After pretreatment with different GLPs, especially GLP above 10 kDa, the symptoms of gastric mucosal congestion and bleeding were improved; serum myeloperoxidase, inflammatory factor, and histamine were decreased; and antioxidant activity and defense factors (NO and EGF) were increased. Results showed that GLP with different molecular weights had a dose-dependent effect in alleviating alcohol-induced gastric injury. The underlying mechanism might be related to regulating anti-oxidation, promoting the release of related defense factors, reducing inflammatory factors, and reducing the level of histamine in serum. The current work indicated that GLPs above 10 kDa could be applied as natural resources for producing new functional foods to prevent gastric injury induced by ethanol.
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Affiliation(s)
- Baoming Tian
- College of Food Science and Technology, Zhejiang University of Technology, Huzhou 313299, China; (B.T.); (Q.Z.); (H.X.); (H.Z.); (K.Y.); (P.S.)
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Huzhou 313299, China
| | - Qin Zhao
- College of Food Science and Technology, Zhejiang University of Technology, Huzhou 313299, China; (B.T.); (Q.Z.); (H.X.); (H.Z.); (K.Y.); (P.S.)
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Huzhou 313299, China
| | - Haoyong Xing
- College of Food Science and Technology, Zhejiang University of Technology, Huzhou 313299, China; (B.T.); (Q.Z.); (H.X.); (H.Z.); (K.Y.); (P.S.)
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Huzhou 313299, China
| | - Jing Xu
- Longevity Valley Botanical Co., Ltd., Hangzhou 321200, China; (J.X.); (Z.L.)
| | - Zhenhao Li
- Longevity Valley Botanical Co., Ltd., Hangzhou 321200, China; (J.X.); (Z.L.)
| | - Hua Zhu
- College of Food Science and Technology, Zhejiang University of Technology, Huzhou 313299, China; (B.T.); (Q.Z.); (H.X.); (H.Z.); (K.Y.); (P.S.)
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Huzhou 313299, China
| | - Kai Yang
- College of Food Science and Technology, Zhejiang University of Technology, Huzhou 313299, China; (B.T.); (Q.Z.); (H.X.); (H.Z.); (K.Y.); (P.S.)
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Huzhou 313299, China
| | - Peilong Sun
- College of Food Science and Technology, Zhejiang University of Technology, Huzhou 313299, China; (B.T.); (Q.Z.); (H.X.); (H.Z.); (K.Y.); (P.S.)
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Huzhou 313299, China
| | - Ming Cai
- College of Food Science and Technology, Zhejiang University of Technology, Huzhou 313299, China; (B.T.); (Q.Z.); (H.X.); (H.Z.); (K.Y.); (P.S.)
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Huzhou 313299, China
- Correspondence: ; Tel.: +86-571-8881-3778
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Dhawefi N, Jedidi S, Rtibi K, Jridi M, Sammeri H, Abidi C, Zouari N, Sebai H. Antidiarrheal, Antimicrobial, and Antioxidant Properties of the Aqueous Extract of Tunisian Persimmon ( Diospyros kaki Thunb.) Fruits. J Med Food 2021; 24:1100-1112. [PMID: 33872072 DOI: 10.1089/jmf.2020.0202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Medicinal plants were used to prevent and treat numerous gastrointestinal disorders owing, in part, to their antioxidant capacity. The protective effects of Diospyros kaki fruit aqueous extract (DKFAE) against castor oil (CO)-induced diarrhea was studied. The in vitro antioxidant and antibacterial properties were investigated using colorimetric and biochemical analyses. In vivo, 60 male rats were divided into 6 groups of 10 animals each (n = 10): control (C), CO, CO+various doses of DKFAE (100, 200, and 400 mg/kg, b.w., p.o.), and CO+loperamide (LOP, 10 mg/kg, b.w., p.o.).The DKFAE was rich in tannins and showed interesting antioxidant and antibacterial activities. The liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS) analysis resulted in the identification of 16 phenolic compounds, among which quinic acid was the main one. The in vivo study showed that diarrhea was accompanied by an oxidative stress status as measured by an increase of lipid peroxidation, a decrease of glutathione and thiol group levels, as well as antioxidant enzyme activity depletion, such as glutathione peroxidase, superoxide dismutase, and catalase. The DKFAE administration significantly decreased the gastrointestinal transit in a dose-dependent manner. Besides, DKFAE protected against CO-induced diarrhea and intestinal fluid accumulation. Interestingly, DKFAE pretreatment counteracted all the oxidative stress status deregulation induced by CO intoxication. D. kaki fruit could be suggested for its strong protective effect against CO-induced acute diarrhea, which could be explained, in part, to its antimicrobial and antioxidant properties.
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Affiliation(s)
- Nourhène Dhawefi
- Unit of Functional Physiology and Valorization of Bio-Resources, University of Jendouba, Higher Institute of Biotechnology of Béja, Béja, Tunisia
- Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Tunisia
| | - Saber Jedidi
- Unit of Functional Physiology and Valorization of Bio-Resources, University of Jendouba, Higher Institute of Biotechnology of Béja, Béja, Tunisia
| | - Kais Rtibi
- Unit of Functional Physiology and Valorization of Bio-Resources, University of Jendouba, Higher Institute of Biotechnology of Béja, Béja, Tunisia
| | - Mourad Jridi
- Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - Houcem Sammeri
- Unit of Functional Physiology and Valorization of Bio-Resources, University of Jendouba, Higher Institute of Biotechnology of Béja, Béja, Tunisia
- Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Tunisia
| | - Chaima Abidi
- Unit of Functional Physiology and Valorization of Bio-Resources, University of Jendouba, Higher Institute of Biotechnology of Béja, Béja, Tunisia
| | - Nacim Zouari
- Higher Institute of Applied Biology of Medenine, Unversity of Gabes, Medenine, Tunisia
| | - Hichem Sebai
- Unit of Functional Physiology and Valorization of Bio-Resources, University of Jendouba, Higher Institute of Biotechnology of Béja, Béja, Tunisia
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Rytel L, Gonkowski I, Grzegorzewski W, Wojtkiewicz J. Chemically-Induced Inflammation Changes the Number of Nitrergic Nervous Structures in the Muscular Layer of the Porcine Descending Colon. Animals (Basel) 2021; 11:ani11020394. [PMID: 33557027 PMCID: PMC7913632 DOI: 10.3390/ani11020394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/23/2022] Open
Abstract
Simple Summary The enteric nervous system (ENS) is the part of the nervous system that is located in the wall of the gastrointestinal tract and regulates the majority of the functions of the stomach and intestine. The ENS is characterized by a complex structure and a high degree of independence from the brain. It is known that the ENS changes under the impact of physiological and pathological stimuli. One of the active substances synthetized by enteric neurons is nitric oxide (NO), which is involved in the regulation of intestinal motility, blood flow, secretory activity, and immunological processes in the gastrointestinal tract. In the present study, the influence of chemically-induced inflammatory process on a number of nitrergic neuronal structures located in the muscular layer of the descending colon is investigated. An increase in the number of structures that nitric oxide takes part in is correlated with the inflammatory processes. Abstract The enteric nervous system (ENS) is the part of the nervous system that is located in the wall of the gastrointestinal tract and regulates the majority of the functions of the stomach and intestine. Enteric neurons may contain various active substances that act as neuromediators and/or neuromodulators. One of them is a gaseous substance, namely nitric oxide (NO). It is known that NO in the gastrointestinal (GI) tract may possess inhibitory functions; however, many of the aspects connected with the roles of this substance, especially during pathological states, remain not fully understood. An experiment is performed here with 15 pigs divided into 3 groups: C group (without any treatment), C1 group (“sham” operated), and C2 group, in which experimental inflammation was induced. The aim of this study is to investigate the influence of inflammation on nitrergic nervous structures in the muscular layer of the porcine descending colon using an immunofluorescence method. The obtained results show that inflammation causes an increase in the percentage of nitric oxide synthase (nNOS)-positive neurons in the myenteric plexus of the ENS, as well as the number of nitrergic nerve fibers in the muscular layer of the descending colon. The obtained results suggest that NO is involved in the pathological condition of the large bowel and probably takes part in neuroprotective and/or adaptive processes.
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Affiliation(s)
- Liliana Rytel
- Department of Internal Disease with Clinic, Faculty of Veterinary Medicine, University of Warmia and Mazury, Street Oczapowskiego 14, 10-719 Olsztyn, Poland
- Correspondence: (L.R.); (J.W.)
| | - Ignacy Gonkowski
- Students’ Scientific Club of Pathophysiologists, Department of Human Physiology and Pathophysiology, School of Medicine, University of Warmia and Mazury, 10-082 Olsztyn, Poland;
| | - Waldemar Grzegorzewski
- Interdisciplinary Center for Preclinical and Clinical Research, Department of Biotechnology, Institute of Biology and Biotechnology, College of Natural Sciences, University of Rzeszow, Pigonia 1 str., 35-310 Rzeszow, Poland;
| | - Joanna Wojtkiewicz
- Department of Human Physiology and Pathophysiology, School of Medicine, University of Warmia and Mazury, 10-082 Olsztyn, Poland
- Correspondence: (L.R.); (J.W.)
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Rychlik A, Gonkowski S, Kaczmar E, Obremski K, Calka J, Makowska K. The T2 Toxin Produced by Fusarium spp. Impacts Porcine Duodenal Nitric Oxide Synthase (nNOS)-Positive Nervous Structures-The Preliminary Study. Int J Mol Sci 2020; 21:ijms21145118. [PMID: 32698434 PMCID: PMC7404315 DOI: 10.3390/ijms21145118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/05/2020] [Accepted: 07/15/2020] [Indexed: 01/12/2023] Open
Abstract
T2 toxin synthetized by Fusarium spp. negatively affects various internal organs and systems, including the digestive tract and the immune, endocrine, and nervous systems. However, knowledge about the effects of T2 on the enteric nervous system (ENS) is still incomplete. Therefore, during the present experiment, the influence of T2 toxin with a dose of 12 µg/kg body weight (b.w.)/per day on the number of enteric nervous structures immunoreactive to neuronal isoform nitric oxide synthase (nNOS—used here as a marker of nitrergic neurons) in the porcine duodenum was studied using the double immunofluorescence method. Under physiological conditions, nNOS-positive neurons amounted to 38.28 ± 1.147%, 38.39 ± 1.244%, and 35.34 ± 1.151 of all enteric neurons in the myenteric (MP), outer submucous (OSP), and inner submucous (ISP) plexuses, respectively. After administration of T2 toxin, an increase in the number of these neurons was observed in all types of the enteric plexuses and nNOS-positive cells reached 46.20 ± 1.453% in the MP, 45.39 ± 0.488% in the OSP, and 44.07 ± 0.308% in the ISP. However, in the present study, the influence of T2 toxin on the intramucosal and intramuscular nNOS-positive nerves was not observed. The results obtained in the present study indicate that even low doses of T2 toxin are not neutral for living organisms because they may change the neurochemical characterization of the enteric neurons.
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Affiliation(s)
- Andrzej Rychlik
- Department of Clinical Diagnostics, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-957 Olsztyn, Poland; (A.R.); (E.K.)
| | - Slawomir Gonkowski
- Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland; (S.G.); (J.C.)
| | - Ewa Kaczmar
- Department of Clinical Diagnostics, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-957 Olsztyn, Poland; (A.R.); (E.K.)
| | - Kazimierz Obremski
- Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str. 13, 10-718 Olsztyn, Poland;
| | - Jaroslaw Calka
- Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland; (S.G.); (J.C.)
| | - Krystyna Makowska
- Department of Clinical Diagnostics, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-957 Olsztyn, Poland; (A.R.); (E.K.)
- Correspondence: ; Fax: +48-95234460
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Gonzalez Z, Herlihy D, Phan C, Diaz J, Dominguez K, McCallum R. Alcohol and gastric motility: pathophysiological and therapeutic implications. J Investig Med 2020; 68:965-971. [PMID: 32447287 DOI: 10.1136/jim-2020-001327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2020] [Indexed: 01/16/2023]
Abstract
Alcohol has been associated with alterations in gastric motility. The literature identifies that various factors play a role in alcohol's effect on gastric emptying including differences in alcohol concentration, osmolarity, caloric content, amino acids as well as different processing techniques (fermentation vs distillation). Additionally, chronic alcohol consumption has been shown to alter the myenteric nitrergic system resulting in impaired gastrointestinal motor function, and it also has an inhibitory effect on the release of several neurotransmitters that play a key role in gastrointestinal motility, including acetylcholine. Whether social or limited intake of alcohol could have a therapeutic role has not been apparent. Serendipitously, we have identified a therapeutic role for alcohol with a meal in the entity of dumping syndrome (DS) where there is postprandial rapid emptying of voluminous and hyperosmolar gastric contents into the small bowel. In the clinical setting of DS attributed to impaired vagal nerve function, there was normalization of gastric emptying and resolution of accompanying symptoms when drinking a glass of wine before and during meals. We propose that alcohol's anticholinergic effect was augmented in the setting of vagal nerve denervation resulting in slowing of gastric emptying and in alleviation of symptoms of early DS. This review article provides an in-depth analysis of the published literature on alcohol and gastric motility focusing on the accumulated knowledge that may have clinical application and relevance.
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Affiliation(s)
- Zorisadday Gonzalez
- Gastroenterology, Texas Tech University Health Sciences Center El Paso, El Paso, Texas, USA
| | - Daniel Herlihy
- Gastroenterology, Texas Tech University Health Sciences Center El Paso, El Paso, Texas, USA
| | - Cong Phan
- Paul L Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas, USA
| | - Jesus Diaz
- Nuclear Medicine, University Medical Center of El Paso, El Paso, Texas, USA
| | - Kenneth Dominguez
- Nuclear Medicine, University Medical Center of El Paso, El Paso, Texas, USA
| | - Richard McCallum
- Gastroenterology, Texas Tech University Health Sciences Center El Paso, El Paso, Texas, USA
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Neurochemical Plasticity of nNOS-, VIP- and CART-Immunoreactive Neurons Following Prolonged Acetylsalicylic Acid Supplementation in the Porcine Jejunum. Int J Mol Sci 2020; 21:ijms21062157. [PMID: 32245119 PMCID: PMC7139762 DOI: 10.3390/ijms21062157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/04/2020] [Accepted: 03/13/2020] [Indexed: 12/13/2022] Open
Abstract
Aspirin, also known as acetylsalicylic acid (ASA), is a commonly used anti-inflammatory drug that has analgesic and antipyretic properties. The side effects are well known, however, knowledge concerning its influence on gastric and intestinal innervation is limited. The enteric nervous system (ENS) innervates the whole gastrointestinal tract (GIT) and is comprised of more than one hundred million neurons. The capacity of neurons to adapt to microenvironmental influences, termed as an enteric neuronal plasticity, is an essential adaptive response to various pathological stimuli. Therefore, the goal of the present study was to determine the influence of prolonged ASA supplementation on the immunolocalization of neuronal nitric oxide synthase (nNOS), vasoactive intestinal peptide (VIP) and cocaine- and amphetamine- regulated transcript peptide (CART) in the porcine jejunum. The experiment was performed on 8 Pietrain × Duroc immature gilts. Using routine double-labelling immunofluorescence, we revealed that the ENS nerve cells underwent adaptive changes in response to the induced inflammation, which was manifested by upregulated or downregulated expression of the studied neurotransmitters. Our results suggest the participation of nNOS, VIP and CART in the development of inflammation and may form the basis for further neuro-gastroenterological research.
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Nitroso-oxidative stress after activation of 5-HT4 receptors under conditions of colitis in rats. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2019. [DOI: 10.2478/cipms-2019-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) plays an important role in the regulation of the functioning of the gastrointestinal tract, including that of the colon. The response of smooth muscles, blood vessels and colon mucosa (CM) to 5-HT is realized through the activation of various types of 5-HT receptors, in particular, 5-HT4 receptors, since the latter are identified on colon cells membranes (enterocytes, smooth muscles and endothelium). The aim of our study was to determine the effect of 5-НT4 receptors agonist (mosapride) on nitrogen (II) oxide production and lipid peroxidation in CM and colon muscle tissue (CMT) under the conditions of experimental ulcerative colitis (UC).
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Szymanska K, Calka J, Gonkowski S. Nitric oxide as an active substance in the enteric neurons of the porcine digestive tract in physiological conditions and under intoxication with bisphenol A (BPA). Nitric Oxide 2018; 80:1-11. [PMID: 30086357 DOI: 10.1016/j.niox.2018.08.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/30/2018] [Accepted: 08/04/2018] [Indexed: 02/07/2023]
Abstract
Bisphenol A (BPA) is an organic substance, which is commonly used in the production of plastic. It is known that BPA has the negative impact on the living organism, affecting among others the reproductive organs, nervous, endocrine and immune systems. Nevertheless the knowledge about the influence of BPA on the enteric nervous system (ENS) is extremely scanty. On the other hand, nitric oxide is considered to be one of the most important neuronal factors in the ENS. The aim of the study was to investigate the influence of low and high doses of BPA on neuronal isoform nitric oxide synthase - like immunoreactive (nNOS-LI) nervous structures in the various parts of the porcine gastrointestinal (GI) tract using double immunofluorescence technique. The obtained results show that BPA affects nNOS-LI enteric neurons and nerve fibers, and the character and severity of observed changes depend on the fragment of the gastrointestinal tract, part of the ENS and dose of the toxin. It should be pointed out that even relatively low doses of BPA (0.05 mg/kg body weight/day) are not neutral for the organism and may change the number of nitrergic nervous structures in the stomach and intestine. Observed changes are probably connected with neurotoxic activity of BPA, but the exact mechanisms of them still remain unclear.
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Affiliation(s)
- Kamila Szymanska
- Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego Str. 13, 10-718, Olsztyn, Poland.
| | - Jaroslaw Calka
- Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego Str. 13, 10-718, Olsztyn, Poland
| | - Slawomir Gonkowski
- Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego Str. 13, 10-718, Olsztyn, Poland
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12
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Bozzetti V, Paterlini G, De Lorenzo P, Gazzolo D, Valsecchi MG, Tagliabue PE. Impact of Continuous vs Bolus Feeding on Splanchnic Perfusion in Very Low Birth Weight Infants: A Randomized Trial. J Pediatr 2016; 176:86-92.e2. [PMID: 27339251 DOI: 10.1016/j.jpeds.2016.05.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/30/2016] [Accepted: 05/10/2016] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To detect changes in splanchnic perfusion and oxygenation induced by 2 different feeding regimens in infants with intrauterine growth restriction (IUGR) and those without IUGR. STUDY DESIGN This was a randomized trial in 40 very low birth weight infants. When an enteral intake of 100 mL/kg/day was achieved, patients with IUGR and those without IUGR were randomized into 2 groups. Group A (n = 20) received a feed by bolus (in 10 minutes), then, after at least 3 hours, received the same amount of formula by continuous nutrition over 3 hours. Group B (n = 20) received a feed administered continuously over 3 hours, followed by a bolus administration (in 10 minutes) of the same amount of formula after at least 3 hours. On the day of randomization, intestinal and cerebral regional oximetry was measured via near-infrared spectroscopy and Doppler ultrasound (US) of the superior mesenteric artery was performed. Examinations were performed before the feed and at 30 minutes after the feed by bolus and before the feed, at 30 minutes after the start of the feed, and at 30 minutes after the end of the feed for the 3-hour continuous feed. RESULTS Superior mesenteric artery Doppler US showed significantly higher perfusion values after the bolus feeds than after the continuous feeds. Near-infrared spectroscopy values remained stable before and after feeds. Infants with IUGR and those without IUGR showed the same perfusion and oxygenation patterns. CONCLUSION According to our Doppler US results, bolus feeding is more effective than continuous feeding in increasing splanchnic perfusion. TRIAL REGISTRATION ClinicalTrials.gov: NCT01341236.
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Affiliation(s)
- Valentina Bozzetti
- Neonatal Intensive Care Unit, MBBM Foundation, San Gerardo Hospital, Monza, Italy.
| | - Giuseppe Paterlini
- Neonatal Intensive Care Unit, MBBM Foundation, San Gerardo Hospital, Monza, Italy
| | - Paola De Lorenzo
- Department of Pediatrics, Centro Ricerca Tettamanti, University of Milano-Bicocca, San Gerardo Hospital, Monza, Italy; Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Diego Gazzolo
- Department of Maternal, Fetal, and Neonatal Medicine, C. Arrigo Children's Hospital, Alessandria, Italy
| | - Maria Grazia Valsecchi
- Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Paolo E Tagliabue
- Neonatal Intensive Care Unit, MBBM Foundation, San Gerardo Hospital, Monza, Italy
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13
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Hirota S, Takahama U. Reactions of polyphenols in masticated apple fruit with nitrite under stomach simulating conditions: Formation of nitroso compounds and thiocyanate conjugates. Food Res Int 2015; 75:20-26. [DOI: 10.1016/j.foodres.2015.05.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/02/2015] [Accepted: 05/08/2015] [Indexed: 01/06/2023]
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14
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Wang S, Zhao Y, Zhang J, Huang X, Wang Y, Xu X, Zheng B, Zhou X, Tian H, Liu L, Mei Q. Antidiarrheal effect of Alpinia oxyphylla Miq. (Zingiberaceae) in experimental mice and its possible mechanism of action. JOURNAL OF ETHNOPHARMACOLOGY 2015; 168:182-190. [PMID: 25861952 DOI: 10.1016/j.jep.2015.03.066] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 02/12/2015] [Accepted: 03/30/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The fructus Alpinia oxyphylla Miq. (AOM) has been used for treating diarrhea with spleen deficiency and gastralgia for thousands of years. A number of traditional Chinese medicine formulae provide AOM as an alternative herbal treatment for diarrhea, but the scientific basis for this usage has not been well defined. AIM OF THE STUDY In this study, we tried to investigate the antidiarrheal activity and possible mechanisms of Fructus AOM, aiming to enrich our understanding to the scientific meanings and theoretical significance of Fructus AOM in clinical practice. MATERIALS AND METHODS The fructus of AOM collected from Hainan province in China were macerated in the 95% ethanol to obtain the crude 95% ethanol extract, followed by subjected to chromatographic separation over a Diaion HP20 column to obtain 90% and 50% ethanol eluted fractions. The activities of the crude extract and fractions on castor oil induced acute diarrhea, rhubarb induced chronic diarrhea, gastrointestinal transit (GIT) in mice, and contractions of isolated guinea-pig ileum were evaluated. Additionally, nitric oxide (NO), gastrointestinal peptides gastrin (GAS), motilin (MTL) and somatostatin (SS) levels that related to gastrointestinal motilities were detected to demonstrate the potential mechanisms. Ultimately, LC-MS/MS method was utilized to ensure the chemical consistency. RESULTS The 95% ethanol extract and 90% ethanol eluted fraction significantly delayed the onset time and decreased the wet faeces proportion compared with control group in the castor oil induced acute diarrhea mice. In terms of further evaluation of antidiarrheal activity, the 95% ethanol extract and 90% ethanol elution displayed significant inhibition of the intestinal propulsion at the two highest oral doses of 20 g crude drug/kg and 1g/kg. Moreover the 95% ethanol extract (10 and 20 g crude drug/kg) and 90% ethanol elution (0.5 and 1g/kg) could significantly inhibit the GIT, which was partially attributed to the increase in NO and SS levels, and the decreased MTL. In vitro spontaneous contractions of the isolated guinea pig ileum induced by carbachol, neostigmine and histamine were attenuated by both the extract and elution. Phytochemical analysis of 95% ethanol extract and its fractions identified the presence of diphenylheptanes, sesquiterpenes, and flavones as the major components. CONCLUSIONS Our in vivo and in vitro data could partly support and justify the traditional usage of Fructus AOM on the treatment of diarrhea in traditional medicine.
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Affiliation(s)
- Sheng Wang
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Yang Zhao
- Vascular Biology Program, Centenary Institute, The University of Sydney, Shanghai 2042, NSW, Australia.
| | - Junqing Zhang
- Hainan Provincial Key Laboratory of Research and Development of Tropical Medicinal Plants, Hainan Medical University, Haikou 571199, China.
| | - Xiaoxing Huang
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Yifei Wang
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Xiaotao Xu
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Bin Zheng
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Xue Zhou
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Huajie Tian
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Li Liu
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
| | - Qibing Mei
- China State Institute of Pharmaceutical Industry, Shanghai 200040, China; State Key Laboratory of New Drug & Pharmaceutial Process, Shanghai Institute of Pharmaceutial Industry, Shanghai 200437, China.
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de Souza GFP, Taladriz-Blanco P, Velloso LA, de Oliveira MG. Nitric oxide released from luminal s-nitroso-N-acetylcysteine increases gastric mucosal blood flow. Molecules 2015; 20:4109-23. [PMID: 25749680 PMCID: PMC6272716 DOI: 10.3390/molecules20034109] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 02/18/2015] [Accepted: 02/26/2015] [Indexed: 12/25/2022] Open
Abstract
Nitric oxide (NO)-mediated vasodilation plays a key role in gastric mucosal defense, and NO-donor drugs may protect against diseases associated with gastric mucosal blood flow (GMBF) deficiencies. In this study, we used the ex vivo gastric chamber method and Laser Doppler Flowmetry to characterize the effects of luminal aqueous NO-donor drug S-nitroso-N-acetylcysteine (SNAC) solution administration compared to aqueous NaNO2 and NaNO3 solutions (pH 7.4) on GMBF in Sprague-Dawley rats. SNAC solutions (600 μM and 12 mM) led to a rapid threefold increase in GMBF, which was maintained during the incubation of the solutions with the gastric mucosa, while NaNO2 or NaNO3 solutions (12 mM) did not affect GMBF. SNAC solutions (600 μM and 12 mM) spontaneously released NO at 37 °C at a constant rate of 0.3 or 14 nmol·mL-1·min-1, respectively, while NaNO2 (12 mM) released NO at a rate of 0.06 nmol·mL-1·min-1 and NaNO3 (12 mM) did not release NO. These results suggest that the SNAC-induced GMBF increase is due to their higher rates of spontaneous NO release compared to equimolar NaNO2 solutions. Taken together, our data indicate that oral SNAC administration is a potential approach for gastric acid-peptic disorder prevention and treatment.
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Affiliation(s)
- Gabriela F P de Souza
- Institute of Chemistry, University of Campinas, UNICAMP, CP 6154, Campinas, SP 13083-970, Brazil.
| | - Patricia Taladriz-Blanco
- Institute of Chemistry, University of Campinas, UNICAMP, CP 6154, Campinas, SP 13083-970, Brazil.
| | - Lício A Velloso
- Faculty of Medical Sciences, University of Campinas, UNICAMP, CP, Campinas, SP 13084-970, Brazil.
| | - Marcelo G de Oliveira
- Institute of Chemistry, University of Campinas, UNICAMP, CP 6154, Campinas, SP 13083-970, Brazil.
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Abstract
Peptic ulcer is a common disease characterized by lesions that affect the mucosa of the esophagus, stomach and/or duodenum, and may extend into the muscular layer of the mucosa. Natural products have played an important role in the process of development and discovery of new drugs, due to their wide structural diversity and present, mostly specific and selective biological activities. Among natural products the alkaloids, biologically active secondary metabolites, that can be found in plants, animals or microorganisms stand out. The alkaloids are compounds consisting of a basic nitrogen atom that may or may not be part of a heterocyclic ring. This review will describe 15 alkaloids with antiulcer activity in animal models and in vitro studies.
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Murad HAS, Abdallah HM. Black tea extract and its thearubigins relieve the sildenafil-induced delayed gut motility in mice: a possible role of nitric oxide. Phytother Res 2014; 28:1687-91. [PMID: 24895242 DOI: 10.1002/ptr.5183] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 05/02/2014] [Accepted: 05/08/2014] [Indexed: 11/08/2022]
Abstract
In this study we hypothesize that a standardized black tea aqueous extract (BTE) and thearubigins, its main polyphenolic pigments, will improve sildenafil-induced delay in gastric emptying (GE) and small intestinal transit (SIT) in mice. Twenty groups of mice (n = 8) were given a phenol red meal, and three sets of experiments were performed. In the first and second sets, effects of different concentrations of BTE, thearubigins (TRs), and sildenafil (SLD), alone and in combinations, on GE and SIT were measured. In the third set, influence of nω -Nitro-l-arginine methyl ester hydrochloride (l-NAME) pretreatment on effects of these treatments was tested. Black tea extract (3% and 4.5%) and thearubigins (50 and 60 mg/kg) dose-dependently increased GE and SIT, whereas BTE 6% and thearubigins 70 mg/kg did not affect them. Sildenafil dose-dependently reduced both GE and SIT. Combination of metoclopramide, BTE 4.5%, thearubigins 60, or l-NAME with sildenafil (5 mg/kg) reversed its motility-delaying effects. Pretreatment with l-NAME followed by BTE 4.5%, thearubigins 60, BTE 4.5% + sildenafil 5, or thearubigins 60 + sildenafil 5 only partially affected the accelerating effects of BTE 4.5% and thearubigins 60. In conclusion, a standardized BTE and its thearubigins improve the sildenafil-induced delayed gut motility in mice. This improvement was partially blocked by l-NAME suggesting a possible role of nitric oxide. Thus, BTE 4.5% or TRs 60 mg/kg solution could be considered a reliever therapy for the sildenafil-induced dyspepsia.
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Affiliation(s)
- Hussam A S Murad
- Department of Pharmacology, Faculty of Medicine, Rabigh, King Abdulaziz University (KAU), Jeddah, 21589, Saudi Arabia; Department of Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, 11562, Egypt
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Choudhary M, Kumar V, Singh S. Gastric antisecretory and cytoprotective effects of hydroalcoholic extracts of Plumeria alba Linn. leaves in rats. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2014; 12:42-51. [PMID: 24461594 DOI: 10.1016/s2095-4964(14)60002-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE This study was conducted to evaluate the antiulcerogenic property of hydroalcoholic extract obtained from the leaves of Plumeria alba Linn. METHODS Antiulcer assays were performed using the protocols of ulcer induced by non-steroidal anti-inflammatory drugs, ethanol and pylorus ligation. The hydroalcoholic extract (HAPA), and various fractions of HAPA like, n-hexane extract (HPA), ethyl acetate extract (EAPA) and n-butanol extract (BPA) were administered at doses of 200 and 400 mg/kg for HAPA and 100 and 200 mg/kg for fractions of extracts. Parameters of gastric secretion (volume, pH, total protein, and free and total acidity) were determined by the pylorus ligation model. Parameters like aspartate aminotransferase and alanine aminotransferase were also determined in ethanol-induced ulcer model. To determine the mechanism of action, role of nitric oxide was also evaluated. RESULTS EAPA and BPA (100 and 200 mg/kg, p.o.) showed gastric ulcer-healing effect in indomethacin-induced ulcer model, while HAPA (200 mg/kg) and HPA showed no significant antiulcer effect. Both EAPA and BPA showed gastric cytoprotective effect in ethanol-induced gastric ulcer and inhibited gastric secretion in pylorus-ligated rats. CONCLUSION The results of the present study show that some hydroalcoholic extract of Plumeria alba L. displays antiulcer activity, as demonstrated by the significant inhibition of ulcer formation induced by different models, which is consistent with the literature report in folk medicine.
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Affiliation(s)
- Manjusha Choudhary
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra 136119, India
| | - Vipin Kumar
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra 136119, India; E-mail:
| | - Surender Singh
- All India Institute of Medical Sciences, New Delhi 110029, India
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Lemos LMS, Martins TB, Tanajura GH, Gazoni VF, Bonaldo J, Strada CL, Silva MGD, Dall'oglio EL, de Sousa Júnior PT, Martins DTDO. Evaluation of antiulcer activity of chromanone fraction from Calophyllum brasiliesnse Camb. JOURNAL OF ETHNOPHARMACOLOGY 2012; 141:432-439. [PMID: 22425905 DOI: 10.1016/j.jep.2012.03.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 02/01/2012] [Accepted: 03/05/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Calophyllum brasiliense Camb. (Clusiaceae), popularly known as 'guanandi', is found in the tropical areas and swampy lands. The latex exuding from its bark is used in the treatment of gastric ulcer in folk medicine. Several active compounds have been isolated from its stem bark among them, are the chromanone acids. Therefore, this study aimed to evaluate antiulcer activity and probable mechanism(s) of action of a fraction containing a mixture of chromanone acids (BI), derived by column chromatography fractionation of the hexane extract of the stem bark of Calophyllum brasiliense (HECb), using experimental in vitro and in vivo models. MATERIALS AND METHODS Ulcer was induced by oral administration of ethanol (75%, v/v) and indomethacin (50mg/kg). Malondialdehyde, reduced glutathione and catalase activity was measured in stomach tissue after ethanol induced ulcer. In order to evaluate the effect of BI on nitric oxide, ulcer was induced by ethanol in l-NAME pretreated animals. Anti-Helicobacter pylori activity was verified in disk diffusion and broth microdilution in vitro assays, using cagA+ and vacA+ Helicobacter pylori strains. RESULTS BI prevented the gastric ulceration caused by ethanol and indomethacin treatments. Its gastroprotective mechanism in ethanol-induced ulcer was partly due to reduction of MDA and CAT levels in the gastric tissue. BI did not affect the GSH levels and its gastroprotective effect was not reversed by pretreatment with l-NAME. BI showed anti-Helicobacter pylori in the both assays. CONCLUSION The results indicate that BI is partly responsible for the HECb antiulcer and anti-Helicobacter pylori effects.
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Affiliation(s)
- Larissa Maria Scalon Lemos
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, n 2367, Coxipó, Cuiabá, Mato Grosso, Zip Code: 78060-900, Brazil
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Abdel-Sater KA, Abdel-Daiem WM, Sayyed Bakheet M. The gender difference of selective serotonin reuptake inhibitor, fluoxetine in adult rats with stress-induced gastric ulcer. Eur J Pharmacol 2012; 688:42-8. [PMID: 22546225 DOI: 10.1016/j.ejphar.2012.04.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 04/11/2012] [Accepted: 04/11/2012] [Indexed: 11/16/2022]
Abstract
We investigated the gender difference of selective serotonin reuptake inhibitor, fluoxetine in adult rats with stress-induced gastric ulcer. The rats were randomly divided into six groups: Group I, control males and group II, control females; group III, acute cold restraint stressed males and group IV, acute cold restraint stressed females; group V, fluoxetine-treated stressed males and group VI, fluoxetine-treated stressed females. Acute cold restraint stress was established by fixing the four limbs of the rat and placing it in a refrigerator at 4°C for 3h. Fluoxetine was given intraperitoneal in a single dose of 10mg/kg/day. After 2 weeks, stomach and brain tissues were collected for the assay of gastric malonaldehyde (MDA), catalase, nitric oxide (NO) and cortical gamma aminobutyric acid (GABA). Stressed animals exhibited increased total acidity in association with decreased gastric secretion volume. Gastric MDA was increased while gastric catalase, NO, and cortical GABA were decreased in stressed male rats when compared to stressed females. However, fluoxetine administration attenuated these stress-induced changes especially in stressed male animals. Stressed male rats were more responsive to the antiulcer effect of fluoxetine more than stressed females. However, fluoxetine might be considered to be the first-choice drug in depressive patients with gastric ulcers in the future.
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Affiliation(s)
- Khaled A Abdel-Sater
- Rabigh Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia; Al-Azher Faculty of Medicine, Assiut, Egypt.
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