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Zeng Y, Li J, Zheng Y, Zhang D, Zhong N, Zuo X, Li Y, Yu W, Lu J. Development and validation of a predictive model for submucosal fibrosis in patients with early gastric cancer undergoing endoscopic submucosal dissection: experience from a large tertiary center. Ann Med 2024; 56:2391536. [PMID: 39149760 PMCID: PMC11328799 DOI: 10.1080/07853890.2024.2391536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/25/2024] [Accepted: 08/02/2024] [Indexed: 08/17/2024] Open
Abstract
BACKGROUND Submucosal fibrosis is associated with adverse events of endoscopic submucosal dissection (ESD). The present study mainly aimed to establish a predictive model for submucosal fibrosis in patients with early gastric cancer (EGC) undergoing ESD. METHODS Eligible patients with EGC, identified at Qilu Hospital of Shandong University from April 2013 to December 2023, were retrospectively included and randomly split into a training set and a validation set in a 7:3 ratio. Logistic regression analyses were used to pinpoint the risk factors for submucosal fibrosis. A nomogram was developed and confirmed using receiver operating characteristic (ROC) curves, calibration plots, Hosmer-Lemeshow (H-L) tests, and decision curve analysis (DCA) curves. Besides, a predictive model for severe submucosal fibrosis was further conducted and tested. RESULTS A total of 516 cases in the training group and 220 cases in the validation group were recruited. The nomogram for submucosal fibrosis contained the following items: tumour location (long axis), tumour location (short axis), ulceration, and biopsy pathology. ROC curves showed high efficiency with an area under the ROC of 0.819 in the training group, and 0.812 in the validation group. Calibration curves and H-L tests indicated good consistency. DCA proved the nomogram to be clinically beneficial. Furthermore, the four items were also applicable for a nomogram predicting severe fibrosis, and the model performed well. CONCLUSION The predictive models, initially constructed in this study, were validated as convenient and feasible for endoscopists to predict submucosal fibrosis and severe fibrosis in patients with EGC undergoing ESD.
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Affiliation(s)
- Yunqing Zeng
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Jinhou Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Department of Gastroenterology, Taian City Central Hospital, Taian, Shandong, China
| | - Yuan Zheng
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Di Zhang
- Department of Medical Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Ning Zhong
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiuli Zuo
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yanqing Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Wenbin Yu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Jiaoyang Lu
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
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Fan P, Xie S, Zhang Z, Yuan Q, He J, Zhang J, Liu X, Liu X, Xu L. Dendrobium officinale flos water extract ameliorates ethanol-induced acute gastric mucosal injury via inhibiting oxidative stress and inflammation. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:8593-8603. [PMID: 38923536 DOI: 10.1002/jsfa.13687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/09/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Dendrobium officinale flos (DOF), a novel food raw material, is used in Chinese folk medicine to nourish the stomach. However, there is still no available study to evaluate the effects of DOF on animal models of acute gastric injury and its mechanism by modern pharmacological research. RESULTS Herein, we characterized the major components of an aqueous extract of DOF and assessed its potential ameliorative effects in a rat model of acute gastric mucosal injury. The DOF water extract showed significant protective effects on the gastric mucosa and exhibited excellent antioxidant and anti-inflammatory activities. Acute gastric injury rat models induced by ethanol (6 mL kg-1) were pretreated with different doses of DOF water extract (50-100 mg kg-1 day-1), and the biological effects of DOF extract in gastric tissues were evaluated. DOF extract alleviated the symptoms of ethanol-stimulated acute gastric mucosal injury, as evidenced by a significant reduction in gastric injury index and the degree of gastric pathological changes. Additionally, treatment with DOF extract upregulated mucin expression in the gastric mucosa, attenuated oxidative stress, decreased the release of inflammatory mediators (TNF-α, IL-6), suppressed the expression of key proinflammatory enzymes (COX-2 and iNOS), reduced the phosphorylation of p38 MAPK and p65 NF-κB and increased the level of PGE2 in gastric tissues. CONCLUSION DOF exerts protective effects against ethanol-induced acute gastric mucosal injury, mainly by inhibiting inflammation and oxidative stress. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Pinglong Fan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Shuchun Xie
- School of Pharmacy, Gannan Medical University, Ganzhou, China
- Ganzhou Cancer Hospital, Ganzhou, China
| | - ZhiQian Zhang
- School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Quan Yuan
- School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Jiajiang He
- School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Jie Zhang
- School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Xinyue Liu
- School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Xiaoyi Liu
- School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Lieqiang Xu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, China
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Chaverra M, Cheney AM, Scheel A, Miller A, George L, Schultz A, Henningsen K, Kominsky D, Walk H, Kennedy WR, Kaufmann H, Walk S, Copié V, Lefcort F. ELP1, the Gene Mutated in Familial Dysautonomia, Is Required for Normal Enteric Nervous System Development and Maintenance and for Gut Epithelium Homeostasis. J Neurosci 2024; 44:e2253232024. [PMID: 39138000 PMCID: PMC11391678 DOI: 10.1523/jneurosci.2253-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 07/31/2024] [Accepted: 08/04/2024] [Indexed: 08/15/2024] Open
Abstract
Familial dysautonomia (FD) is a rare sensory and autonomic neuropathy that results from a mutation in the ELP1 gene. Virtually all patients report gastrointestinal (GI) dysfunction and we have recently shown that FD patients have a dysbiotic gut microbiome and altered metabolome. These findings were recapitulated in an FD mouse model and moreover, the FD mice had reduced intestinal motility, as did patients. To understand the cellular basis for impaired GI function in FD, the enteric nervous system (ENS; both female and male mice) from FD mouse models was analyzed during embryonic development and adulthood. We show here that not only is Elp1 required for the normal formation of the ENS, but it is also required in adulthood for the regulation of both neuronal and non-neuronal cells and for target innervation in both the mucosa and in intestinal smooth muscle. In particular, CGRP innervation was significantly reduced as was the number of dopaminergic neurons. Examination of an FD patient's gastric biopsy also revealed reduced and disoriented axons in the mucosa. Finally, using an FD mouse model in which Elp1 was deleted exclusively from neurons, we found significant changes to the colon epithelium including reduced E-cadherin expression, perturbed mucus layer organization, and infiltration of bacteria into the mucosa. The fact that deletion of Elp1 exclusively in neurons is sufficient to alter the intestinal epithelium and perturb the intestinal epithelial barrier highlights a critical role for neurons in regulating GI epithelium homeostasis.
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Affiliation(s)
- Marta Chaverra
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Alexandra M Cheney
- Biochemistry and Chemistry, Montana State University, Bozeman, Montana 59717
| | - Alpha Scheel
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Alessa Miller
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Lynn George
- Department of Biological and Physical Sciences, Montana State University, Billings, Montana 59101
| | - Anastasia Schultz
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Katelyn Henningsen
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Douglas Kominsky
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Heather Walk
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - William R Kennedy
- Department of Neurology, University of Minnesota, Minneapolis, Minnesota 55455
| | - Horacio Kaufmann
- Department of Neurology, New York University School of Medicine, New York, New York 10016
| | - Seth Walk
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Valérie Copié
- Biochemistry and Chemistry, Montana State University, Bozeman, Montana 59717
| | - Frances Lefcort
- Departments of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
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Qiao K, Song Z, Liang L, Zhou X, Feng X, Xu Y, Yang R, Sun B, Zhang Y. Exploring the Underlying Mechanisms of Preventive Treatment Related to Dietary Factors for Gastric Diseases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:17782-17801. [PMID: 39102359 DOI: 10.1021/acs.jafc.4c05361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Gastric diseases have emerged as one of the main chronic diseases in humans, leading to considerable health, social, and economic burdens. As a result, using food or "food and medicinal homologous substances" has become an effective strategy to prevent gastric diseases. Diet may play a crucial role in the prevention and mitigation of gastric diseases, particularly long-term and regular intake of specific dietary components that have a protective effect on the stomach. These key components, extracted from food, include polysaccharides, alkaloids, terpenoids, polyphenols, peptides, probiotics, etc. The related mechanisms involve regulating gastric acid secretion, protecting gastric mucosa, increasing the release of gastric defense factors, decreasing the level of inflammatory factors, inhibiting Helicobacter pylori infection, producing antioxidant effects or reducing oxidative damage, preventing gastric oxidative stress by inhibiting lipid peroxides, activating Nrf2 signaling pathway, and inhibiting NF-κB, TLR4, and NOS/NO signaling pathways.
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Affiliation(s)
- Kaina Qiao
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
- Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China
- Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, Beijing 100048, China
| | - Zichong Song
- Department of Geriatrics, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Li Liang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
- Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China
- Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, Beijing 100048, China
| | - Xuewei Zhou
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
- Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China
- Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, Beijing 100048, China
| | - Xiaoyan Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100048, China
| | - Youqiang Xu
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
- Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China
- Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, Beijing 100048, China
| | - Rui Yang
- Tianjin Key Laboratory of Food Quality and Health, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Baoguo Sun
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
- Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, Beijing 100048, China
| | - Yuyu Zhang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
- Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China
- Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, Beijing 100048, China
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Kaneko H, Sato H, Suzuki Y, Ikeda A, Kuwashima H, Ikeda R, Sato T, Irie K, Sue S, Maeda S. A Novel Characteristic Gastric Mucus Named "Web-like Mucus" Potentially Induced by Vonoprazan. J Clin Med 2024; 13:4070. [PMID: 39064109 PMCID: PMC11277586 DOI: 10.3390/jcm13144070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/27/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Background: In the absence of Helicobacter pylori (HP) infection, a characteristic gastric mucus adhesion may appear during the use of vonoprazan. We named this novel characteristic mucus "web-like mucus" (WLM). This study aimed to determine the incidence and risk factors for WLM. Methods: Between January 2017 and January 2022, 5665 patients were enrolled in this study. The patients were divided into a proton-pump inhibitor (PPI)-prescribed group (n = 2000), a vonoprazan-prescribed group (n = 268), and a no-PPI/vonoprazan-prescribed (n = 3397) group, and the presence of WLM was examined. After excluding four patients with autoimmune gastritis, the remaining 264 patients in the vonoprazan group were divided into WLM and non-WLM groups, and their clinical features were analyzed. Results: A total of 55 (21%) patients had WLM, all in the vonoprazan-prescribed group. There were no significant differences in factors such as, sex, age, chronic kidney disease, diabetes mellitus, HP eradication history, smoking, or alcohol consumption between the WLM and non-WLM groups. The median duration from the start of vonoprazan administration to the endoscopic detection of WLM was 2 (1-24) months. Conclusions: WLM appears to be a characteristic feature in patients treated with vonoprazan.
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Affiliation(s)
- Hiroaki Kaneko
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Hiroki Sato
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Yuichi Suzuki
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Aya Ikeda
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Hirofumi Kuwashima
- Yokohama Hodogaya Central Hospital, 43-1 Kamadai-Chou Hodogaya-Ku, Yokohama 240-8585, Japan;
| | - Ryosuke Ikeda
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Takeshi Sato
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Kuniyasu Irie
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Soichiro Sue
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
| | - Shin Maeda
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-Ku, Yokohama 236-0004, Japan; (H.K.); (H.S.); (Y.S.); (A.I.); (R.I.); (T.S.); (K.I.); (S.S.)
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Acevedo S, Covarrubias AA, Haeger P, Pancetti F, Tala F, de la Fuente-Ortega E. Alginate Oligosaccharides Protect Gastric Epithelial Cells against Oxidative Stress Damage through Induction of the Nrf2 Pathway. Antioxidants (Basel) 2024; 13:618. [PMID: 38790723 PMCID: PMC11117588 DOI: 10.3390/antiox13050618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 05/01/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Gastric diseases represent a significant global public health challenge, characterized by molecular dysregulation in redox homeostasis and heightened oxidative stress. Although prior preclinical studies have demonstrated the cytoprotective antioxidant effects of alginate oligosaccharides (AOSs) through the Nrf2 pathway, whether such mechanisms apply to gastric diseases remains unclear. In this study, we used the GES-1 gastric cell line exposed to hydrogen peroxide (H2O2) as a damage model to investigate the impact of AOS on cell viability and its associated mechanisms. Our results revealed that pre-incubation with AOS for either 4 h or 24 h significantly improved the viability of GES-1 cells exposed to H2O2. In addition, AOS reduced the intracellular ROS levels, activating the Nrf2 signaling pathway, with increased Nrf2 protein and mRNA expression and a significant upregulation of the target genes HO-1 and NQO1. The activation of Nrf2 was correlated with decreased Keap1 protein expression and an increased level of the autophagy protein p62/SQSTM1, suggesting the activation of Nrf2 through a noncanonical pathway. This study suggests that AOS is a potential treatment for protecting gastric epithelial cells from oxidative stress by activating the p62/SQSTM1-Keap1-Nrf2 axis and laying the foundation for future investigations about its specific therapeutic mechanisms.
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Affiliation(s)
- Samantha Acevedo
- Laboratorio de Estrés Celular y Enfermedades Crónicas no Transmisibles, Universidad Católica del Norte, Coquimbo 1781421, Chile;
| | - Alejandra A. Covarrubias
- Laboratorio de Neurotoxicología Ambiental, Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo 1781421, Chile
- Facultad de Ciencias Agropecuarias, Universidad del Alba, La Serena 1700000, Chile
| | - Paola Haeger
- Laboratorio de Neurobiología de la Conducta, Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo 1781421, Chile;
- Millennium Nucleus of Neuroepigenetics and Plasticity (EpiNeuro), Santiago 8370186, Chile
- Núcleo de Investigación en Prevención y Tratamiento de Enfermedades Crónicas no Transmisibles (NiPTEC), Universidad Católica del Norte, Coquimbo 1781421, Chile;
| | - Floria Pancetti
- Laboratorio de Neurotoxicología Ambiental, Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo 1781421, Chile
- Núcleo de Investigación en Prevención y Tratamiento de Enfermedades Crónicas no Transmisibles (NiPTEC), Universidad Católica del Norte, Coquimbo 1781421, Chile;
- Centro de Investigación y Desarrollo Tecnológico en Algas y Otros Recursos Biológicos (CIDTA), Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo 1781421, Chile
| | - Fadia Tala
- Núcleo de Investigación en Prevención y Tratamiento de Enfermedades Crónicas no Transmisibles (NiPTEC), Universidad Católica del Norte, Coquimbo 1781421, Chile;
- Centro de Investigación y Desarrollo Tecnológico en Algas y Otros Recursos Biológicos (CIDTA), Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo 1781421, Chile
- Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo 1781421, Chile
- Instituto Milenio en Socio-Ecología Costera, SECOS, Santiago 7550000, Chile
| | - Erwin de la Fuente-Ortega
- Laboratorio de Estrés Celular y Enfermedades Crónicas no Transmisibles, Universidad Católica del Norte, Coquimbo 1781421, Chile;
- Núcleo de Investigación en Prevención y Tratamiento de Enfermedades Crónicas no Transmisibles (NiPTEC), Universidad Católica del Norte, Coquimbo 1781421, Chile;
- Centro de Investigación y Desarrollo Tecnológico en Algas y Otros Recursos Biológicos (CIDTA), Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo 1781421, Chile
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Arabacı Tamer S, Mermer KS, Erdoğan Ö, Çevik Ö, Ercan F, Bağcı C, Yeğen BÇ. Neuropeptide W facilitates chronic gastric ulcer healing by the regulation of cyclooxygenase and NF-κB signaling pathways. Inflammopharmacology 2024; 32:1519-1529. [PMID: 38227096 PMCID: PMC11006733 DOI: 10.1007/s10787-023-01403-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/24/2023] [Indexed: 01/17/2024]
Abstract
AIMS Putative beneficial effects of neuropeptide W (NPW) in the early phase of gastric ulcer healing process and the involvement of cyclooxygenase (COX) enzymes were investigated in an acetic acid-induced gastric ulcer model. MAIN METHODS In anesthetized male Sprague-Dawley rats, acetic acid was applied surgically on the serosa and then a COX-inhibitor (COX-2-selective NS-398, COX-1-selective ketorolac, or non-selective indomethacin; 2 mg/kg/day, 3 mg/kg/day or 5 mg/kg/day; respectively) or saline was injected intraperitoneally. One h after ulcer induction, omeprazole (20 mg/kg/day), NPW (0.1 μg/kg/day) or saline was intraperitoneally administered. Injections of NPW, COX-inhibitors, omeprazole or saline were continued for the following 2 days until rats were decapitated at the end of the third day. KEY FINDINGS NPW treatment depressed gastric prostaglandin (PG) I2 level, but not PGE2 level. Similar to omeprazole, NPW treatment significantly reduced gastric and serum tumor necrosis factor-alpha and interleukin-1 beta levels and depressed the upregulation of nuclear factor kappa B (NF-κB) and COX-2 expressions due to ulcer. In parallel with the histopathological findings, treatment with NPW suppressed ulcer-induced increases in myeloperoxidase activity and malondialdehyde level and replenished glutathione level. However, the inhibitory effect of NPW on myeloperoxidase activity and NPW-induced increase in glutathione were not observed in the presence of COX-1 inhibitor ketorolac or the non-selective COX-inhibitor indomethacin. SIGNIFICANCE In conclusion, NPW facilitated the healing of gastric injury in rats via the inhibition of pro-inflammatory cytokine production, oxidative stress and neutrophil infiltration as well as the downregulation of COX-2 protein and NF-κB gene expressions.
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Affiliation(s)
- Sevil Arabacı Tamer
- Department of Physiology, Sakarya University School of Medicine, Sakarya, Turkey
| | - Kadriye Sezen Mermer
- Department of Physiology, Marmara University School of Medicine, Istanbul, Turkey
| | - Ömer Erdoğan
- Faculty of Medicine, Department of Biochemistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Özge Çevik
- Faculty of Medicine, Department of Biochemistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Feriha Ercan
- Department of Histology & Embryology, Marmara University School of Medicine, Istanbul, Turkey
| | - Cahit Bağcı
- Department of Physiology, Sakarya University School of Medicine, Sakarya, Turkey
| | - Berrak Ç Yeğen
- Department of Physiology, Marmara University School of Medicine, Istanbul, Turkey.
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Rodrigues MDF, da Silva JW, de Lima JS, Ramos BDA, Paz ST, Lomonaco D, Zampieri D, Ximenes RM. Antiulcer activity of Mauritia flexuosa L.f. (Arecaceae) pulp oil: An edible Amazonian species with functional properties. Fitoterapia 2024; 174:105857. [PMID: 38354821 DOI: 10.1016/j.fitote.2024.105857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/06/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
Mauritia flexuosa, known as buriti in Brazil, is a widespread palm tree in Amazonia. It has many ethnobotanical uses, including food, oil, and medicine. The oil obtained from buriti's fruit pulp has high levels of monounsaturated fatty acids, carotenoids, and tocopherols, and is used in the food, cosmetic, and pharmaceutical industries for its antioxidant properties. Many biological activities have been reported for buriti oil, such as antioxidant, antimicrobial, chemopreventive, and immunomodulatory. Due to its high content of bioactive compounds, buriti oil is considered a functional ingredient with possible benefits in preventing oxidative stress and chronic diseases, particularly in the gastrointestinal tract. Peptic ulcer disease is a multifactorial disorder, involving lesions in the stomach and duodenum mucosa, which has a complex healing process. In this context, some nutrients and bioactive compounds help the maintenance of gastrointestinal mucosal integrity and function, such as carotenoids, tocopherols, and unsaturated fatty acids, which makes buriti oil an interesting candidate to be used in the prevention and management of gastrointestinal diseases. This study aimed to evaluate the gastroprotective and antiulcer effects of buriti oil and its possible mechanisms of action. Buriti oil reduced the ulcerative area and lipid peroxidation induced by ethanol. The gastroprotective activity of buriti oil partially depends on nitric oxide and sulfhydryl compounds. In acetic acid-induced gastric ulcers, buriti oil accelerated healing and stimulated the formation of new gastric glands. These results demonstrated the potential of buriti oil as a functional ingredient to promote health benefits in the gastrointestinal tract.
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Affiliation(s)
- Maria de Fátima Rodrigues
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife 50740-525, Pernambuco, Brazil
| | - José Wellinton da Silva
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife 50740-525, Pernambuco, Brazil
| | - Jucielma Silva de Lima
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife 50740-525, Pernambuco, Brazil
| | - Bárbara de Azevedo Ramos
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife 50740-525, Pernambuco, Brazil
| | - Silvania Tavares Paz
- Departamento de Patologia, Universidade Federal de Pernambuco, Recife 50670-910, Pernambuco, Brazil
| | - Diego Lomonaco
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza 60440-900, Ceará, Brazil
| | - Davila Zampieri
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza 60440-900, Ceará, Brazil
| | - Rafael Matos Ximenes
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife 50740-525, Pernambuco, Brazil.
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He JY, Li J, Zhang YY, He HB, He YM, Xu DX, Wang X, Wu HY, Zhang JH, Jahid H, Sadia A, Yu HF, Wang JZ, Zou K. Tormentic acid, a triterpenoid isolated from the fruits of Chaenomeles speciose, protected indomethacin-induced gastric mucosal lesion via modulating miR-139 and the CXCR4/CXCL12/PLC/PKC/Rho a/MLC pathway. PHARMACEUTICAL BIOLOGY 2023; 61:1343-1363. [PMID: 37623313 PMCID: PMC10461523 DOI: 10.1080/13880209.2023.2249526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 07/31/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023]
Abstract
CONTEXT Tormentic acid (TA), an effective triterpenoid isolated from Chaenomeles speciosa (Sweet) Nakai (Rosaceae) fruits, exerts an effective treatment for gastric damage. OBJECTIVE To investigate the gastroprotective effect of TA on indomethacin (IND) damaged GES-1 cells and rats, and explore potential mechanisms. MATERIALS AND METHODS TA concentrations of 1.563-25 µM were used. Cell proliferation, apoptosis and migration were performed using MTT, colony formation, wound healing, migration, Hoechst staining assays. SD rats were divided into control, IND, TA (1, 2 and 4 mg/kg) + IND groups, once a day for 21 continuous days. Twenty-four hours after the last administration, all groups except the control group were given IND (100 mg/kg) by gavage. Gastric juice parameters, gastric ulcer, gastric blood flow (GBF), blood biochemical parameters and cytokine analysis and gastric mucosal histopathology were detected for 2 h and 6 h after IND oral administration. The mRNA and protein expression of miR-139 and the CXCR4/CXCL12/PLC/PKC/Rho A/MLC pathway were analyzed in the IND-damaged GES-1 cells and gastric tissue of rats. RESULTS TA might ameliorate the gastric mucosal injury by accelerating the IND-damaged GES-1 cell proliferation and migration, ameliorating GBF, ulcer area and pathologic changes, the redox system and cytokine levels, the gastric juice parameters, elevating the gastric pH in IND damaged rats; suppressed miR-139 mRNA expression, elevated CXCR4 and CXCL12 mRNA and protein expression, p-PLC, p-PKC, Rho A, MLCK and p-MLC protein expression. DISCUSSION AND CONCLUSIONS TA may have potential use as a clinical drug candidate for gastric mucosal lesion treatment.
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Affiliation(s)
- Jun-Yu He
- Department of Clinical Medicine, College of Basic Medical Science, China Three Gorges University, Yichang, P.R. China
| | - Jie Li
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
| | - Yuan-Yuan Zhang
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
| | - Hai-Bo He
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Shiyan, P.R. China
| | - Yu-Min He
- Department of Clinical Medicine, College of Basic Medical Science, China Three Gorges University, Yichang, P.R. China
| | - Dao-Xiang Xu
- Department of Gastroenterology, Seventh People’s Hospital of Wenzhou, Wenzhou, P.R. China
| | - Xiao Wang
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
| | - Hao-Yang Wu
- Department of Clinical Medicine, College of Basic Medical Science, China Three Gorges University, Yichang, P.R. China
| | - Ji-Hong Zhang
- Department of Gastroenterology, Chinese Medicine Clinical Medical College & Hubei Clinical Research Center for Functional Digestive Diseases of Traditional Chinese Medicine, China Three Gorges University, Yichang, P.R. China
| | - Hasan Jahid
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
| | - Akter Sadia
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
| | - Hui-Fan Yu
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Shiyan, P.R. China
| | - Jun-Zhi Wang
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
| | - Kun Zou
- Yichang Key Laboratory of Development and Utilization of Health Products with Drug Food Homology & Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang, P.R. China
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10
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Boeing T, de Souza J, Vilhena da Silva RDC, Mariano LNB, Mota da Silva L, Gerhardt GM, Cretton S, Klein-Junior LC, de Souza P. Gastroprotective effect of Artemisia absinthium L.: A medicinal plant used in the treatment of digestive disorders. JOURNAL OF ETHNOPHARMACOLOGY 2023; 312:116488. [PMID: 37059247 DOI: 10.1016/j.jep.2023.116488] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/29/2023] [Accepted: 04/10/2023] [Indexed: 05/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Wormwood (Artemisia absinthium L.) is traditionally used for stomach pain and gastric relief. However, its possible gastroprotective effect has not yet been experimentally evaluated. AIM OF THE STUDY This study evaluated the gastroprotective effect of aqueous extracts obtained through hot and room temperature maceration of A. absinthium aerial parts in rats. MATERIALS AND METHODS The gastroprotective effect of hot aqueous extract (HAE) and room temperature aqueous extract (RTAE) from A. absinthium aerial parts were evaluated in rats using a model of acute gastric ulcer induced by ethanol p.a. The stomachs were collected to measure the gastric lesion area and histological and biochemical analysis. UHPLC-HRMS/MS analysis was used to determine the chemical profile of the extracts. RESULTS Eight main peaks in the UHPLC chromatogram were identified in both HAE and RTAE extracts: tuberonic acid glycoside (1), rupicolin (2), 2-hydroxyeupatolide (3), yangabin (4), sesartemin (5), artemetin (6), isoalantodiene (7), and dehydroartemorin (8). For RTAE, a higher diversity of sesquiterpene lactones was observed. The groups treated with RTAE at 3%, 10%, and 30% presented a gastroprotective effect, reducing the lesion area by 64.68%, 53.71%, and 90.04%, respectively, when compared with the vehicle (VEH)-treated group. On the other hand, the groups treated with HAE at 3%, 10%, and 30% presented values of lesion areas higher than those of the VEH group. Changes in the submucosa layer, inflammatory process with edema, cellular infiltration, and mucin depletion were detected in the gastric mucosa exposed to ethanol, which was fully prevented by RTAE treatment. Neither HAE nor RTAE could increase the reduced glutathione levels in the injured gastric tissue, but RTAE (30%) reduced the formation of lipid hydroperoxides. When the rats were pre-treated with NEM (a chelator of non-protein thiols) or L-NAME (non-selective nitric oxide synthase inhibitor), the RTAE lost the ability to protect the gastric mucosa. CONCLUSIONS This study corroborates the ethnopharmacological use of this specie to treat gastric disorders revealing the gastroprotective effect of the room-temperature aqueous extract of A. absinthium aerial parts. Its mode of action may involve the ability of the infusion to maintain the gastric mucosal barrier integrity.
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Affiliation(s)
- Thaise Boeing
- Postgraduate Program in Pharmaceutical Sciences, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - Josiane de Souza
- Postgraduate Program in Pharmaceutical Sciences, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | | | - Luísa Nathália Bolda Mariano
- Postgraduate Program in Pharmaceutical Sciences, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - Luisa Mota da Silva
- Postgraduate Program in Pharmaceutical Sciences, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - Guilherme Moreschi Gerhardt
- Postgraduate Program in Pharmaceutical Sciences, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - Sylvian Cretton
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1211, Geneva 4, Switzerland
| | - Luiz Carlos Klein-Junior
- Postgraduate Program in Pharmaceutical Sciences, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - Priscila de Souza
- Postgraduate Program in Pharmaceutical Sciences, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil.
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11
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Meurer M, Felisbino F, Müller FB, Somensi LB, Cury BJ, Jerônimo DT, Venzon L, França TCS, Mariott M, Santos AC, Nunes RKS, Boeing T, Bella-Cruz A, Souza PDE, Roman-Junior WA, Arunachalam K, Oliveira RG, Silva LM. Antiulcer mechanisms of the hydroalcoholic extract from Aztec marigolds' medicinal and edible flowers (Tagetes erecta L.). AN ACAD BRAS CIENC 2023; 95:e20220427. [PMID: 37556712 DOI: 10.1590/0001-3765202320220427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 09/15/2022] [Indexed: 08/11/2023] Open
Abstract
The antiulcer mechanisms of the dry extract of T. erecta flowers (DETe) were studied here. The acute ulcers induced by acidified ethanol or indomethacin were reproduced in mice pretreated with DETe (3 - 300 mg/kg). The antiulcer activity of DETe was also verified in mice pretreated with NEM, L-NAME, indomethacin, or yohimbine. The antisecretory effect of DETe was verified in rats, and its anti-Helicobacter pylori activity was determined in vitro. DETe (300 mg/kg, p.o) reduced the ethanol- or indomethacin-induced ulcer by 49 and 93%, respectively. The pre-treatment with L-NAME, NEM or yohimbine abolished the gastroprotective effect of DETe. However, DETe did not change the volume, acidity, or peptic activity in rats and did not affect H. pylori. This study expands knowledge about the antiulcerogenic potential of DETe, evidencing the role of nitric oxide, non-protein sulfhydryl groups, α2 adrenergic receptors, and prostaglandins, but not antisecretory or anti-H. pylori properties.
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Affiliation(s)
- Mariane Meurer
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Fabiula Felisbino
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Fabiana B Müller
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Lincon B Somensi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
- Programa de Pós-Graduação em Desenvolvimento e Sociedade, Universidade Alto Vale do Rio do Peixe, Rua Victor Baptista Adami, 800, Centro, 89500-000 Caçador, SC, Brazil
| | - Benhur J Cury
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Daniele T Jerônimo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Larissa Venzon
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Tauani C S França
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Marihá Mariott
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Ana C Santos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Ruan Kaio S Nunes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Thaise Boeing
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Alexandre Bella-Cruz
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Priscila DE Souza
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
| | - Walter A Roman-Junior
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Efapi, 89809-900 Chapecó, SC, Brazil
| | - Karuppusamy Arunachalam
- Chinese Academy of Sciences, Kunming Institute of Botany, Key Laboratory of Economic Plants and Biotechnology and the Yunnan Key Laboratory for Wild Plant Resources, Kunming 650201, People's Republic of China
| | - Ruberlei G Oliveira
- Universidade Federal de Mato Grosso, Escola de Educação Física (Programa de Pós-Graduação), Avenida Universitária, 3500, Parque Universitário, 78060-900 Cuiabá, MT, Brazil
| | - Luisa M Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Núcleo de Pesquisas Farmacêuticas Químicas (NIQFAR), Rua Uruguai, 458, Centro, 89809-900 Itajaí, SC, Brazil
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12
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Figueiredo FDF, Damazo AS, Arunachalam K, Silva MJD, Pavan E, Lima JCDS, Martins DTDO. Evaluation of the gastroprotective and ulcer healing properties by Fridericia chica (Bonpl.) L.G. Lohmann hydroethanolic extract of leaves. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116338. [PMID: 36870462 DOI: 10.1016/j.jep.2023.116338] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Fridericia chica (Bonpl.) L.G. Lohmann (Bignoniaceae), is a climber native to Brazil, found in all Brazilian biomes. It is mostly known in Brazil as "carajiru," and home medicines made from the leaves have been used to cure disorders including stomach ulcers and other gastrointestinal disorders. AIM OF THE STUDY The objective of the study was to investigate the F. chica hydroethanolic extract of leaves (HEFc) preventative and curative antiulcer gastrointestinal efficacy as well as the mechanisms of action using in vivo rodent models. MATERIALS AND METHODS F. chica was collected in the municipality of Juína, Mato Grosso, and its leaves were used to prepare the extract by maceration technique (70% hydroethanol in the 1:10 ratio, w/v) to obtain the HEFc. The chromatographic analysis of HEFc was carried out by High Performance Liquid Chromatography-Photo Diode Array-Electrospray Ionization-Mass Spectrometry (HPLC-PDA-ESI-MS)- LCQ Fleet™ system. To determine the potential antiulcer potential of HEFc (1, 5 and 20 mg/kg, p.o.), the gastroprotective activity was assessed in various animal models of stomach ulcers caused by acidified ethanol, water constraint stress, indomethacin, (acute), and acid acetic (chronic). Additionally, the prokinetic properties of the HEFC were assessed in mice. The gastroprotective underlying mechanisms were evaluated by the histopathological analysis and determination of gastric secretion (volume, free and total acidity), gastric barrier mucus, activation of PGs, NO, K +ATP channels, α2-adrenoceptor, antioxidant activity (GSH, MPO and MDA), NO and mucosal cytokines (TNF-α, IL-1β, and IL-10) levels. RESULTS The chemical composition of HEFc was analyzed and apigenin, scutellarin, and carajurone were identified. HEFc (1, 5 and 20 mg/kg) showed effect against acute ulcers induced by HCl/EtOH with a reduction in the ulcerated area of 64.41% (p < 0.001), 54.23% (p < 0.01), 38.71% (p < 0.01), respectively. In the indomethacin experiment, there was no change in the doses tested, whereas in the water immersion restraint stress ulcer there was a reduction of lesions at doses of 1, 5, and 20 mg/kg by 80.34% (p < 0.001), 68.46% (p < 0.01) and 52.04% (p < 0.01). HEFc increased the mucus production at doses of 1 and 20 mg/kg in 28.14% (p < 0.05) and 38.36% (p < 0.01), respectively. In the pyloric ligation-induced model of gastric ulceration, the HEFc decreased the total acidity in all doses by 54.23%, 65.08%, and 44.40% (p < 0.05) and gastric secretory volume in 38.47% at dose of 1 mg/kg (p < 0,05) and increased the free acidity at the dose of 5 mg/kg by 11.86% (p < 0.05). The administration of EHFc (1 mg/kg) showed a gastroprotective effect possibly by stimulating the release of prostaglandins and activating K+ATP channels and α2-adrenoreceptors. Also, the gastroprotective effect of HEFc involved an increase in CAT and GSH activities, and a reduction in MPO activity and MDA levels. In the chronic gastric ulcer model, the HEFc (1, 5 and 20 mg/kg) decreased the ulcerated area significantly (p < 0.001) at all doses by 71.37%, 91.00%, and 93.46%, respectively. In the histological analysis, HEFc promoted the healing of gastric lesions by stimulating the formation of granulation tissue and consequently epithelialization. On the other hand, regarding the effect of HEFc on gastric emptying and intestinal transit, it was observed that the extract did not alter gastric emptying, but there was an increase in intestinal transit at the dose of 1 mg/kg (p < 0.01). CONCLUSION These outcomes confirmed the advantages of Fridericia chica leaves for the treatment of stomach ulcers, which are well-known. HEFc was discovered to have antiulcer characteristics through multitarget pathways, which might be related to an increase in stomach defense mechanisms and a decrease in defensive factor. HEFc can be regarded as a potential new antiulcer herbal remedy because of its antiulcer properties, which may be attributed to the mixture of flavonoids, apigenin, scutellarin and carajurone.
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Affiliation(s)
- Fabiana de Freitas Figueiredo
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil.
| | - Amilcar Sabino Damazo
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil; Área de Histologia e Biologia Celular, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil.
| | - Karuppusamy Arunachalam
- Centro de Estudos em Células Tronco, Terapia Celular e Genética Toxicológica (CeTroGen), Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, 79070-900, MS, Brazil; Programa de Pós-graduação em Saúde e Desenvolvimento da Região Centro-Oeste, Faculdade de Medicina Dr. Hélio Mandetta (FAMED), Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, 79070-900, MS, Brazil.
| | - Marcelo José Dias Silva
- Universidade Federal de Alfenas (UNIFAL-MG), Laboratório de Plantas Medicinais e Fitoterápicos, Rua Gabriel Monteiro da Silva, 700. Centro Alfenas, MG, Brazil.
| | - Eduarda Pavan
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil.
| | - Joaquim Corsino da Silva Lima
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil.
| | - Domingos Tabajara de Oliveira Martins
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil; Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil.
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13
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Murad HA, Alqurashi TM. A novel nano-formulation of olmesartan medoxomil with improved delivery and efficacy in the treatment of indomethacin-induced duodenitis in rats. Braz J Med Biol Res 2023; 56:e12665. [PMID: 37255094 DOI: 10.1590/1414-431x2023e12665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/22/2023] [Indexed: 06/01/2023] Open
Abstract
There are few studies addressing duodenal inflammation. This study was designed to investigate the effects of a recently developed biotechnological product, a nano-formulation of olmesartan medoxomil (OM) - olmesartan medoxomil zeinmersomes (OMZ) - for the treatment of indomethacin-induced duodenitis in rats. Adult male Wistar rats were given indomethacin (10 mg/kg/day) for four weeks. They were divided into a positive control group (PC, untreated) and two groups treated orally with 3 mg/kg per day of OM or OMZ for the last two weeks of the 4-week indomethacin-treatment. At end of the four weeks, blood and duodenum were collected. Duodenal homogenate was used for measurement of levels of myeloperoxidase, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), malondialdehyde, reduced glutathione (GSH), and cleaved caspase-3. Duodenal sections were stained with H&E. Gene expressions of nuclear factor kappa B (NF-κB p65), Bcl-2-associated X protein (Bax), and B-cell lymphoma 2 (Bcl-2) by RT-PCR, and protein expression of survivin by western blot were assessed. Plasma and duodenal olmesartan concentrations were measured by high performance liquid chromatography mass spectrometry. The duodenitis rats showed significantly higher duodenal levels of myeloperoxidase, TNF-α, IL-6, malondialdehyde, and cleaved caspase-3, a significantly lower GSH level, and histopathological alterations. Moreover, they showed upregulated gene expressions of NF-κB p65 and Bax, downregulated gene expression of Bcl-2, decreased Bcl-2/Bax ratio, and lower protein expression of survivin. OMZ was more effective in protecting the duodenum from indomethacin-induced injuries compared to OM due to improved delivery, higher bioavailability, and better anti-inflammatory, antioxidant, and antiapoptotic effects. OMZ could be a better choice for hypertensive patients with non-steroidal anti-inflammatory drugs-induced duodenitis.
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Affiliation(s)
- H A Murad
- Department of Pharmacology, Faculty of Medicine, Rabigh campus, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - T M Alqurashi
- Department of Pharmacology, Faculty of Medicine, Rabigh campus, King Abdulaziz University, Jeddah, Saudi Arabia
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14
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Gravina AG, Pellegrino R, Auletta S, Palladino G, Brandimarte G, D’Onofrio R, Arboretto G, Imperio G, Ventura A, Cipullo M, Romano M, Federico A. Hericium erinaceus, a medicinal fungus with a centuries-old history: Evidence in gastrointestinal diseases. World J Gastroenterol 2023; 29:3048-3065. [PMID: 37346156 PMCID: PMC10280799 DOI: 10.3748/wjg.v29.i20.3048] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/22/2023] [Accepted: 04/21/2023] [Indexed: 05/26/2023] Open
Abstract
Hericium erinaceus is an edible and medicinal mushroom commonly used in traditional Chinese medicine for centuries. Several studies have highlighted its therapeutic potential for gastrointestinal disorders such as gastritis and inflammatory bowel diseases. In addition, some components of this mushroom appear to possess strong antineoplastic capabilities against gastric and colorectal cancer. This review aims to analyse all available evidence on the digestive therapeutic potential of this fungus as well as the possible underlying molecular mechanisms.
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Affiliation(s)
| | - Raffaele Pellegrino
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Salvatore Auletta
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Giovanna Palladino
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Giovanni Brandimarte
- Division of Internal Medicine and Gastroenterology, Cristo Re Hospital, Rome 00167, Italy
| | - Rossella D’Onofrio
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Giusi Arboretto
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Giuseppe Imperio
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Andrea Ventura
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Marina Cipullo
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Marco Romano
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Alessandro Federico
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
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15
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Xu Z, Xiao L, Wang S, Cheng Y, Wu J, Meng Y, Bao K, Zhang J, Cheng C. Alteration of gastric microbiota and transcriptome in a rat with gastric intestinal metaplasia induced by deoxycholic acid. Front Microbiol 2023; 14:1160821. [PMID: 37206332 PMCID: PMC10188980 DOI: 10.3389/fmicb.2023.1160821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/17/2023] [Indexed: 05/21/2023] Open
Abstract
Objective Bile reflux plays a key role in the development of gastric intestinal metaplasia (GIM), an independent risk factor of gastric cancer. Here, we aimed to explore the biological mechanism of GIM induced by bile reflux in a rat model. Methods Rats were treated with 2% sodium salicylate and allowed to freely drink 20 mmol/L sodium deoxycholate for 12 weeks, and GIM was confirmed by histopathological analysis. Gastric microbiota was profiled according to the 16S rDNA V3-V4 region, gastric transcriptome was sequenced, and serum bile acids (BAs) were analyzed by targeted metabolomics. Spearman's correlation analysis was used in constructing the network among gastric microbiota, serum BAs, and gene profiles. Real-time polymerase chain reaction (RT-PCR) measured the expression levels of nine genes in the gastric transcriptome. Results In the stomach, deoxycholic acid (DCA) decreased the microbial diversity but promoted the abundances of several bacterial genera, such as Limosilactobacillus, Burkholderia-Caballeronia-Paraburkholderia, and Rikenellaceae RC9 gut group. Gastric transcriptome showed that the genes enriched in gastric acid secretion were significantly downregulated, whereas the genes enriched in fat digestion and absorption were obviously upregulated in GIM rats. The GIM rats had four promoted serum BAs, namely cholic acid (CA), DCA, taurocholic acid, and taurodeoxycholic acid. Further correlation analysis showed that the Rikenellaceae RC9 gut group was significantly positively correlated with DCA and RGD1311575 (capping protein-inhibiting regulator of actin dynamics), and RGD1311575 was positively correlated with Fabp1 (fatty acid-binding protein, liver), a key gene involved in fat digestion and absorption. Finally, the upregulated expression of Dgat1 (diacylglycerol acyltransferase 1) and Fabp1 related to fat digestion and absorption was identified by RT-PCR and IHC. Conclusion DCA-induced GIM enhanced gastric fat digestion and absorption function and impaired gastric acid secretion function. The DCA-Rikenellaceae RC9 gut group-RGD1311575/Fabp1 axis might play a key role in the mechanism of bile reflux-related GIM.
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Affiliation(s)
- Zijing Xu
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Ling Xiao
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Shuaishuai Wang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yuqin Cheng
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Jianping Wu
- Laboratory Animal Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yufen Meng
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Kaifan Bao
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Junfeng Zhang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- *Correspondence: Junfeng Zhang
| | - Chun Cheng
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Chun Cheng
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16
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Management of H. pylori Induced Peptic ulcer – A Phytotherapeutic Approach. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.3.36] [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
A peptic ulcer is a chronic infectious disease that creates erosion on the epithelial lining of the stomach. It is a commonly encountered problem in the gastrointestinal tract (GI tract). Patients failed multiple regimens due to resistant H. pylori infection. H. pylori show maximum resistance towards Clarithromycin. Due to the consistent increase in resistance there is urgent need for the development of new drugs. Paying much for the antibiotic treatment one should go for the natural treatments with no side effects. Modern treatment of peptic ulcers emphasizes diet with routinely recommend hospitalization of several weeks. Currently, a lot of medications are coming out of natural products. The phytotherapeutic approach for the resistant H.pylori treatment is assessed. The plant produces many secondary metabolic substances which have a lot of beneficial roles in maintaining human health. Administration of plant products would prevent disease and able to eradicate resistant H.pylori. This review includes many phytoproducts having a wide range of antimicrobial activity. Reviewed phytoproducts includes Phytoceutical, Caffeic acid, phenethyl ester, Flavonoid, Capsaicin, Carotenoid, etc are effective treatment against H.pylori. To see their effect on the resistant H.pylori and to manage this resistant bacteria with an application of plant products is the prime concern of this review. The linkage between phytochemical and peptic ulcers will provide a novel framework for the future.
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Damasceno ROS, Soares PMG, Barbosa ALDR, Nicolau LAD, Medeiros JVR, Souza MHLP. Modulatory Role of Carbon Monoxide on the Inflammatory Response and Oxidative Stress Linked to Gastrointestinal Disorders. Antioxid Redox Signal 2022; 37:98-114. [PMID: 34806398 DOI: 10.1089/ars.2020.8223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Significance: Carbon monoxide (CO) is an endogenous gaseous mediator that plays an important role in maintaining gastrointestinal (GI) tract homeostasis, acting in mucosal defense, and providing negative modulation of pathophysiological markers of clinical conditions. Recent Advances: Preclinical studies using animal models and/or cell culture show that CO can modulate the inflammatory response and oxidative stress in GI mucosal injuries and pathological conditions, reducing proinflammatory cytokines and reactive oxygen species, while increasing antioxidant defense mechanisms. Critical Issues: CO has potent anti-inflammatory and antioxidant effects. The defense mechanisms of the GI tract are subject to aggression by different chemical agents (e.g., drugs and ethanol) as well as complex and multifactorial diseases, with inflammation and oxidative stress as strong triggers for the deleterious effects. Thus, it is possible that CO acts on a variety of molecules involved in the inflammatory and oxidative signaling cascades, as well as reinforcing several defense mechanisms that maintain GI homeostasis. Future Directions: CO-based therapies are promising tools for the treatment of GI disorders, such as gastric and intestinal injuries, inflammatory bowel disease, and pancreatitis. Therefore, it is necessary to develop safe and selective CO-releasing agents and/or donor drugs to facilitate effective treatments and methods for analysis of CO levels that are simple and inexpensive. Antioxid. Redox Signal. 37, 98-114.
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Affiliation(s)
| | | | | | | | - Jand-Venes Rolim Medeiros
- Biotechnology and Biodiversity Center Research, Federal University of the Parnaíba Delta, Parnaíba, Brazil
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18
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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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19
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Ayo JO, Ogbuagu NE. Heat stress, haematology and small intestinal morphology in broiler chickens: insight into impact and antioxidant-induced amelioration. WORLD POULTRY SCI J 2021. [DOI: 10.1080/00439339.2021.1959279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- J. O. Ayo
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - N. E. Ogbuagu
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
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20
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Serafim CADL, Araruna MEC, Alves Júnior EB, Silva LMO, Silva AO, da Silva MS, Alves AF, Araújo AA, Batista LM. (-)-Carveol Prevents Gastric Ulcers via Cytoprotective, Antioxidant, Antisecretory and Immunoregulatory Mechanisms in Animal Models. Front Pharmacol 2021; 12:736829. [PMID: 34497525 PMCID: PMC8419343 DOI: 10.3389/fphar.2021.736829] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/05/2021] [Indexed: 12/12/2022] Open
Abstract
Background: (-)-Carveol (p-Mentha-6,8-dien-2-ol) is a monocyclic monoterpenic alcohol, present in essential oils of plant species such as Cymbopogon giganteus, Illicium pachyphyllum and in spices such as Carum carvi (cumin). Pharmacological studies report its antitumor, antimicrobial, neuroprotective, vasorelaxant, antioxidant and anti-inflammatory activity. Hypothesis/Purpose: The objective of this study was to evaluate the acute non-clinical oral toxicity, gastroprotective activity of monoterpene (-)-Carveol in animal models and the related mechanisms of action. Methods: Acute toxicity was assessed according to OECD guide 423 in mice. Ethanol, stress, NSAIDs and pylorus ligation-induced gastric ulcer models were used to investigate antiulcer properties. The related mechanisms of action were using the ethanol-gastric lesions protocol. Results: (-)-Carveol has low toxicity, with a lethal dose 50% (LD50) equal to or greater than 2,500 mg/kg according to OECD guide nº 423. In all gastric ulcer induction methods evaluated, (-)-Carveol (25, 50, 100 and 200 mg/kg, p.o.) significantly reduced the ulcerative lesion in comparison with the respective control groups. To investigate the mechanisms involved in the gastroprotective activity, the antisecretory or neutralizing of gastric secretion, cytoprotective, antioxidant and immunoregulatory effects were evaluated. In the experimental protocol of pylorus ligation-induced gastric ulcer, (-)-Carveol (100 mg/kg) reduced (p < 0.001) the volume of gastric secretion in both routes (oral and intraduodenal). The previous administration of blockers NEM (sulfhydryl groups blocker), L-NAME (nitric oxide synthesis inhibitor), glibenclamide (KATP channel blocker) and indomethacin (cyclo-oxygenase inhibitor), significantly reduced the gastroprotection exercised by (-)-Carveol, suggesting the participation of these pathways in its gastroprotective activity. In addition, treatment with (-)-Carveol (100 mg/kg) increased (p < 0.001) mucus adhered to the gastric wall. Treatment also increased (p < 0.001) levels of reduced glutathione (GSH), superoxide dismutase (SOD) and interleukin-10 (IL-10). It also reduced (p < 0.001) malondialdehyde (MDA), myeloperoxidase (MPO), interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) levels. Conclusion: Thus, it is possible to infer that (-)-Carveol presents gastroprotective activity related to antisecretory, cytoprotective, antioxidant and immunomodulatory mechanisms.
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Affiliation(s)
- Catarina Alves de Lima Serafim
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Maria Elaine Cristina Araruna
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Edvaldo Balbino Alves Júnior
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Leiliane Macena Oliveira Silva
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Alessa Oliveira Silva
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Marcelo Sobral da Silva
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Adriano Francisco Alves
- Department of Physiology and Pathology, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Aurigena Antunes Araújo
- Department of Morphology, Histology and Basic Pathology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Leônia Maria Batista
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
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21
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Maeda H, Sasaki F, Morinaga Y, Kabayama M, Iwaya H, Komaki Y, Arima S, Nasu Y, Tanoue S, Hashimoto S, Kanmura S, Nishiguchi A, Taguchi T, Ido A. Covering Post-Endoscopic Submucosal Dissection Ulcers in Miniature Swine with Hexanoyl (Hx:C6) Group-Modified Alkaline-Treated Gelatin Porous Film (HAG) Induces Proper Healing by Decreasing Inflammation and Fibrosis. Digestion 2021; 102:415-427. [PMID: 32698185 DOI: 10.1159/000509056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 05/31/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Hexanoyl (Hx:C6) group-modified alkaline-treated gelatin porous film (HAG) is a newly developed degradable hydrogel characterized by strong adhesiveness and high affinity for vascular endothelial growth factor (VEGF). The aim of this study was to clarify the effect of HAG sheets on the healing process of post-endoscopic submucosal dissection (ESD) porcine gastric artificial ulcers. METHODS (1) To evaluate the adhesiveness of HAG sheets over time, we performed ESD to create 1 artificial ulcer and covered the lesion with 1 HAG sheet using 1 miniature swine. We observed 2 ulcers by endoscopic and microscopic examinations. (2) To examine the effect of HAG sheets on post-ESD ulcer healing, we performed ESD using 5 miniature swine. The artificial ulcers were covered with HAG sheets, or left uncovered after ESD (day 0), followed by macroscopic and microscopic examinations. On days 7 and 14, we observed 2 ulcers by endoscopic examinations. On day 14, the animals were sacrificed, and histological examination was performed on the 3 stomachs that could be extirpated. RESULTS (1) On day 7, adhesion of HAG sheets was observed. (2) Gastric ulcer area on day 7 was significantly larger in the covered ulcers than in the non-covered ulcers (p = 0.046). On day 14, although there was no significant difference in ulcer area irrespective of covering (p = 0.357), the covered ulcers tended to repair less fold convergence than non-covered ulcers. The covered ulcer sheets significantly decreased inflammatory cell infiltration (p = 0.011), but significantly increased the abundance of macrophages (p = 0.033), in submucosal layers. Also, the abundance of alpha-smooth muscle actin-positive cells in submucosal layers of the covered ulcers was significantly reduced (p = 0.044), leading to a decrease in collagen accumulation. In addition, fibrosis and atrophy of the muscularis propria were significantly lower for covered ulcers than for non-covered ulcers. Furthermore, microvessels and VEGF-positive cells were significantly more abundant in the submucosal layers of the covered ulcers (p < 0.001 and p = 0.024, respectively). CONCLUSIONS HAG sheets induced post-ESD ulcer healing with less submucosal inflammation and muscularis propria injury and have the potential to decrease excess scarring.
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Affiliation(s)
- Hidehito Maeda
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Fumisato Sasaki
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan,
| | - Yuko Morinaga
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Masayuki Kabayama
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Hiromichi Iwaya
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yuga Komaki
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shiho Arima
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yuichiro Nasu
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shiroh Tanoue
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shinichi Hashimoto
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shuji Kanmura
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Akihiro Nishiguchi
- Polymers and Biomaterials Field, Research Center for Functional Materials, National Institute for Materials Science, Ibaraki, Japan
| | - Tetsushi Taguchi
- Polymers and Biomaterials Field, Research Center for Functional Materials, National Institute for Materials Science, Ibaraki, Japan
| | - Akio Ido
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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22
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Grinevich VB, Kravchuk YA, Ped VI, Sas EI, Salikova SP, Gubonina IV, Tkachenko EI, Sitkin SI, Lazebnik LB, Golovanova EV, Belousova EA, Makarchuk PA, Eremina EY, Sarsenbaeva AS, Abdulganieva DI, Tarasova LV, Gromova OA, Ratnikov VA, Kozlov KV, Ratnikova AK. Management of patients with digestive diseases during the COVID-19 pandemic. Clinical Practice Guidelines by the Russian scientific medical society of internal medicine (RSMSIM) and the Gastroenterological Scientific Society of Russia (2nd edition). EXPERIMENTAL AND CLINICAL GASTROENTEROLOGY 2021:5-82. [DOI: 10.31146/1682-8658-ecg-187-3-5-82] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
The presented clinical practice guidelines of the Gastroenterological Scientific Society of Russia (GSSR), diagnostic, and therapeutic approaches for patients with digestive diseases during the COVID-19 pandemic. The guidelines were approved by the XXIII Congress of the GSSR and the 22nd International Slavonic-Baltic Scientifi c Forum “St. Petersburg - Gastro-2020 ON-LINE” (St. Petersburg, June 11, 2020). The presented clinical practice guidelines of the Russian Scientific Medical Society of Internal Medicine (RSMSIM) and the Gastroenterological Scientific Society of Russia (GSSR), diagnostic, and therapeutic approaches for patients with digestive diseases during the COVID-19 pandemic. The recommendations were approved at the XV National Congress of Internal Medicine, XXIII Congress of NOGR on the basis of the 1st edition, adopted at the 22nd International Slavic- Baltic Scientific Forum “St. Petersburg - Gastro-2020 ON-LINE”.
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Affiliation(s)
| | | | - V. I. Ped
- Military Medical Academy named after S. M. Kirov
| | - E. I. Sas
- Military Medical Academy named after S. M. Kirov
| | | | | | | | - S. I. Sitkin
- State Research Institute of Highly Pure Biopreparations of FMBA of Russia; Almazov National Medical Research Centre; North-Western state medical University named after I. I. Mechnikov, Ministry of health of the Russian Federation
| | - L. B. Lazebnik
- Moscow state University of Medicine a. Densitry named after A. I. Yevdokimov of the Ministry of Health of Russia
| | - E. V. Golovanova
- Moscow state University of Medicine a. Densitry named after A. I. Yevdokimov of the Ministry of Health of Russia
| | - E. A. Belousova
- State Budgetary Institution of Moscow Region “Moscow Regional Research Clinical Institute n.a. M. F. Vladimirsky”
| | - P. A. Makarchuk
- State Budgetary Institution of Moscow Region “Moscow Regional Research Clinical Institute n.a. M. F. Vladimirsky”
| | - E. Yu. Eremina
- Federal State Budgetary Educational Institution of Higher Education “National Research Ogarev Mordovia State University”
| | - A. S. Sarsenbaeva
- FSBEI HE SUSMU MOH Russia, st. Vorovskogo, 64, Ural Federal District
| | | | - L. V. Tarasova
- FSBEI of HE “The Chuvash State University n.a. I. N. Ulyanov”; BI of HE “The Surgut State University”
| | - O. A. Gromova
- Federal Research Center “Informatics and Management” of the Russian Academy of Sciences; Federal State Educational Institution of Higher Education Lomonosov Moscow State University
| | - V. A. Ratnikov
- Federal state budgetary institution “North-West District Scientific and Clinical Center named after L. G. Sokolov Federal Medical and Biological Agency“
| | - K. V. Kozlov
- Military Medical Academy named after S. M. Kirov
| | - A. K. Ratnikova
- Military Medical Academy named after S. M. Kirov; Federal state budgetary institution “North-West District Scientific and Clinical Center named after L. G. Sokolov Federal Medical and Biological Agency“
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23
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Viderman D, Issanov A, Temirov T, Goligher E, la Fleur P. Outcome Predictors of Stroke Mortality in the Neurocritical Care Unit. Front Neurol 2020; 11:579733. [PMID: 33384652 PMCID: PMC7769840 DOI: 10.3389/fneur.2020.579733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/18/2020] [Indexed: 01/17/2023] Open
Abstract
Background: Risk factors for medium to long-term mortality after stroke are well-established but predictors of in-hospital stroke mortality are less clearly characterized. Kazakhstan has the highest age-standardized mortality rate from ischemic stroke in the world. Methods: We performed a retrospective analysis of patients with stroke who were admitted over a 3.5-years period to the neurocritical care unit of a tertiary care hospital in Nur-Sultan, Kazakhstan. Results: In total, 148 critically ill patients were included in the analysis (84 ischemic stroke, 64 hemorrhagic stroke). The mean age was 63 years, 45% were male and the mean Glasgow Coma Score (±SD) at baseline was 10.3 (±3.4). The in-hospital mortality rate was similar in patients with ischemic (36%) and hemorrhagic (39%) stroke (HR 0.88, 95%CI 0.48-1.60). Median survival was 38 days (range: 1-89 days) in patients with ischemic stroke and 39 days (range: 1-63 days) in patients with hemorrhagic stroke. Univariable analysis found that patients who had a lower Glasgow Coma Scale, were in coma and who had cerebral edema were more likely to die in-hospital (P = 0.04, 0.02, <0.01, respectively). Conclusions: Our analysis showed that mortality risk in critically ill patients with hemorrhagic stroke was closer to mortality risk in patients with ischemic stroke than has been reported in other analyses. Hypertension, chronic heart failure, ischemic heart disease and atrial fibrillation were the most frequent comorbidities in patients who developed severe (life-threatening) stroke. Coma and cerebral edema on admission appear to be associated with poor outcome. This is the first publication of in-hospital stroke mortality from a Central Asian population and could form the basis for future research including development of risk scores and identifying modifiable risk factors.
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Affiliation(s)
- Dmitriy Viderman
- Nazarbayev University School of Medicine (NUSOM), Nur-Sultan, Kazakhstan
| | - Alpamys Issanov
- Nazarbayev University School of Medicine (NUSOM), Nur-Sultan, Kazakhstan
| | - Talgat Temirov
- National Research Oncology Center, Nur-Sultan, Kazakhstan.,Astana Medical University, Nur-Sultan, Kazakhstan
| | - Ewan Goligher
- Division of Respirology, Department of Medicine, University Health Network, Toronto, ON, Canada.,Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.,Toronto General Hospital Research Institute, Toronto, ON, Canada
| | - Philip la Fleur
- Nazarbayev University School of Medicine (NUSOM), Nur-Sultan, Kazakhstan
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Mehanna MM, Mneimneh AT, Domiati S, Allam AN. Tadalafil-Loaded Limonene-Based Orodispersible Tablets: Formulation, in vitro Characterization and in vivo Appraisal of Gastroprotective Activity. Int J Nanomedicine 2020; 15:10099-10112. [PMID: 33363369 PMCID: PMC7754088 DOI: 10.2147/ijn.s288552] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/25/2020] [Indexed: 12/13/2022] Open
Abstract
Background Gastric ulcer is a prevalent disease with various etiologies, including non-steroidal anti-inflammatory drugs and alcohol consumption. This study aimed to explore the dual gastric protection effect of tadalafil and limonene as a self-nanoemulsifying system (SNES)-based orodispersible tablets. Methods Tadalafil-loaded limonene-based SNES was prepared, and the optimum formula was characterized in terms of particle size (PS), polydispersity index (PDI), and zeta potential (ZP) then loaded on various porous carriers to formulate lyophilized orodispersible tablets (ODTs). The ODTs were evaluated via determining hardness, friability, content uniformity, wetting, and disintegration time. The selected ODT was examined for its gastric ulcer protective effect against alcohol-induced ulcers in rat model. Ulcer score and ulcer index were computed for rats stomachs that were inspected macroscopically and histopathologically. Results The prepared SNES had droplet size of 104 nm, polydispersity index of 0.2, and zeta potential of −15.4 mV. From the different ODTs formulated, the formula with superior wetting time: 23.67 s, outstanding disintegration time: 28 s, accepted hardness value: 3.11 kg/cm2 and friability: 0.6% was designated. A significant gastroprotective effect of the unloaded and tadalafil-loaded ODTs was recognized compared to the omeprazole pre-treated group. Moreover, the histopathological analysis displayed very mild inflammation in the limonene-based ODTs group and intact structure in the tadalafil-loaded pre-treated animals. Conclusion Limonene gastroprotective effect functioned along with tadalafil in the form of SNES-incorporated ODTs could serve as a promising revenue for better efficacy in gastric ulcer prevention.
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Affiliation(s)
- Mohammed M Mehanna
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Amina Tarek Mneimneh
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Souraya Domiati
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Ahmed N Allam
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Serafim C, Araruna ME, Júnior EA, Diniz M, Hiruma-Lima C, Batista L. A Review of the Role of Flavonoids in Peptic Ulcer (2010-2020). Molecules 2020; 25:molecules25225431. [PMID: 33233494 PMCID: PMC7699562 DOI: 10.3390/molecules25225431] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023] Open
Abstract
Peptic ulcers are characterized by erosions on the mucosa of the gastrointestinal tract that may reach the muscle layer. Their etiology is multifactorial and occurs when the balance between offensive and protective factors of the mucosa is disturbed. Peptic ulcers represent a global health problem, affecting millions of people worldwide and showing high rates of recurrence. Helicobacter pylori infection and the use of non-steroidal anti-inflammatory drugs (NSAIDs) are one of the most important predisposing factors for the development of peptic ulcers. Therefore, new approaches to complementary treatments are needed to prevent the development of ulcers and their recurrence. Natural products such as medicinal plants and their isolated compounds have been widely used in experimental models of peptic ulcers. Flavonoids are among the molecules of greatest interest in biological assays due to their anti-inflammatory and antioxidant properties. The present study is a literature review of flavonoids that have been reported to show peptic ulcer activity in experimental models. Studies published from January 2010 to January 2020 were selected from reference databases. This review refers to a collection of flavonoids with antiulcer activity in vivo and in vitro models.
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Affiliation(s)
- Catarina Serafim
- Postgraduate Program in Natural Products and Bioactive Synthetic, Health Sciences Center, Federal University of Paraiba, João Pessoa 58051900, Paraiba, Brazil; (C.S.); (M.E.A.); (E.A.J.)
| | - Maria Elaine Araruna
- Postgraduate Program in Natural Products and Bioactive Synthetic, Health Sciences Center, Federal University of Paraiba, João Pessoa 58051900, Paraiba, Brazil; (C.S.); (M.E.A.); (E.A.J.)
| | - Edvaldo Alves Júnior
- Postgraduate Program in Natural Products and Bioactive Synthetic, Health Sciences Center, Federal University of Paraiba, João Pessoa 58051900, Paraiba, Brazil; (C.S.); (M.E.A.); (E.A.J.)
| | - Margareth Diniz
- Department of Pharmacy, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051900, Paraiba, Brazil;
| | - Clélia Hiruma-Lima
- Department of Structural and Functional Biology (Physiology), Institute of Biosciences, São Paulo State University, Botucatu 18618970, São Paulo, Brazil;
| | - Leônia Batista
- Department of Pharmacy, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051900, Paraiba, Brazil;
- Correspondence: ; Tel.: +55-83-32167003; Fax: +55-83-32167502
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26
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He H, Feng M, Xu H, Li X, He Y, Qin H, Zhang Y, Tang H, Zou K. Total triterpenoids from the fruits of Chaenomeles speciosa exerted gastroprotective activities on indomethacin-induced gastric damage via modulating microRNA-423-5p-mediated TFF/NAG-1 and apoptotic pathways. Food Funct 2020; 11:662-679. [PMID: 31895380 DOI: 10.1039/c9fo02322d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Our previous studies have demonstrated that the total triterpenes from the fruits of Chaenomeles speciosa (CSTT) exhibit effective therapeutic effects on gastric ulcer patients and animals. The present aim is to further investigate the mechanisms involved. The results indicated that CSTT could ameliorate IND-induced gastric injury, which was related to promoting IND-damaged GES-1 cell proliferation and migration, improving the IND-damaged rat GBF, ulcer area, inhibition rate and pathologic changes of gastric mucous tissue, increasing the amount of adhered gastric mucus, attenuating the volume and total acidity of the gastric effluents, and augmenting the gastric pH; further studies showed that CSTT obviously downregulated miR-423-5p mRNA, NAG-1 mRNA and protein expression, Bax, Bad, cytosol cytochrome C, Apaf-1, cleaved-caspase-3, and cleaved-caspase-9 protein expression and cytosol cytochrome C concentration, and upregulated TFF1, TFF2 and TFF3 mRNA and protein expression, Bcl-2, Bcl-xl, pro-caspase-3, and pro-caspase-9 protein expression, mitochondrial viability, mitochondrial cytochrome C concentration and Bcl-2/Bax, Bcl-xl/Bad ratios. These findings demonstrated that CSTT protected against IND-induced gastric damage by depressing miR-423-5p expression and modulating the TFF/NAG-1 pathway, which in turn restrained mitochondrion-mediated apoptosis.
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Affiliation(s)
- Haibo He
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, China
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27
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Salami AT, Adebimpe MA, Olagoke OC, Iyiola TO, Olaleye SB. Potassium bromate cytotoxicity in the Wister rat model of chronic gastric ulcers: Possible reversal by protocatechuic acid. J Food Biochem 2020; 44:e13501. [PMID: 33025593 DOI: 10.1111/jfbc.13501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/09/2020] [Accepted: 09/15/2020] [Indexed: 12/13/2022]
Abstract
The interaction between ingested xenobiotics and the gastrointestinal epithelium influences the possibility of gut epithelial cytotoxicity and systemic toxicity. Potassium bromate (KBrO3 ) has been shown to perturb the central nervous system and it may be carcinogenic, albeit it is used as a food additive. This highlights the need to understand KBrO3 's effect on the stomach epithelium. Here, we report the cytotoxic potential of KBrO3 in an ulcerated stomach, as well as possible cytoprotection by the polyphenol - protocatechuic acid. Potassium bromate (12.5 mg/kg) and protocatechuic acid (120 mg/kg) were administered orally while omeprazole (20 mg/kg) was used as standard. Potassium bromate exacerbated gastric ulcers, increased malonaldehyde levels, catalase, and sodium pump activities, but reduced nitric oxide levels. Potassium bromate further increased mast cell count in the muscularis mucosa, while inducing chronic inflammation and moderate angiogenesis in the gastric mucosa. Our results delineate KBrO3 -induced gastric epithelial cytotoxicity that is ameliorated by protocatechuic acid. PRACTICAL APPLICATIONS: Potassium bromate is a known food additive in the baking, brewing, and cheese-making process. Conversely, protocatechuic acid (3,4-dihydroxybenzoic acid) is the polyphenolic content of plants like Hibiscus sabdariffa L that are commonly consumed as herbal drink, food, spices, and used in folk medicine. This study reports the cytoprotective effect of protocatechuic acid against gastric mucosa ulceration that has been aggravated by potassium bromate.
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Affiliation(s)
- Adeola T Salami
- Department of Physiology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Mayokun A Adebimpe
- Department of Physiology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olawande C Olagoke
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Santa Maria, Brasil
| | - Toluwalope O Iyiola
- Department of Physiology, College of Medicine, University of Ibadan, Ibadan, Nigeria.,Department of Physiology, Faculty of Basic Medical Sciences, Adeleke University, Ede, Nigeria
| | - Samuel B Olaleye
- Department of Physiology, College of Medicine, University of Ibadan, Ibadan, Nigeria
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Grinevich VB, Kravchuk YA, Ped VI, Sas EI, Salikova SP, Gubonina IV, Tkachenko EI, Sitkin SI, Lazebnik LB, Golovanova EV. Management of patients with digestive diseases during the COVID-19 pandemic: Clinical Practice Guidelines by the Gastroenterological Scientific Society of Russia. EXPERIMENTAL AND CLINICAL GASTROENTEROLOGY 2020:4-51. [DOI: 10.31146/1682-8658-ecg-179-7-4-51] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
The presented clinical practice guidelines of the Gastroenterological Scientific Society of Russia (GSSR), diagnostic, and therapeutic approaches for patients with digestive diseases during the COVID-19 pandemic. The guidelines were approved by the XXIII Congress of the GSSR and the 22nd International Slavonic-Baltic Scientific Forum “St. Petersburg — Gastro-2020 ON-LINE” (St. Petersburg, June 11, 2020).
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Affiliation(s)
| | | | - V. I. Ped
- Military Medical Academy named after S.M. Kirov
| | - E. I. Sas
- Military Medical Academy named after S.M. Kirov
| | | | | | | | - S. I. Sitkin
- State Research Institute of Highly Pure Biopreparations of FMBA of Russia; Almazov National Medical Research Centre; North-Western state medical University named after I.I. Mechnikov, Ministry of health of the Russian Federation
| | - L. B. Lazebnik
- FSBEI HE MGMSU named after A.I. Yevdokimov of the Ministry of Health of Russia
| | - E. V. Golovanova
- FSBEI HE MGMSU named after A.I. Yevdokimov of the Ministry of Health of Russia
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29
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Yu L, Li R, Liu W, Zhou Y, Li Y, Qin Y, Chen Y, Xu Y. Protective Effects of Wheat Peptides against Ethanol-Induced Gastric Mucosal Lesions in Rats: Vasodilation and Anti-Inflammation. Nutrients 2020; 12:nu12082355. [PMID: 32784583 PMCID: PMC7469019 DOI: 10.3390/nu12082355] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023] Open
Abstract
Alcohol consumption increases the risk of gastritis and gastric ulcer. Nutritional alternatives are considered for relieving the progression of gastric mucosal lesions instead of conventional drugs that produce side effects. This study was designed to evaluate the gastroprotective effects and investigate the defensive mechanisms of wheat peptides against ethanol-induced acute gastric mucosal injury in rats. Sixty male Sprague-Dawley rats were divided into six groups and orally treated with wheat peptides (0.1, 0.2, 0.4 g/kgbw) and omeprazole (20 mg/kgbw) for 4 weeks, following absolute ethanol administration for 1 h. Pretreatment with wheat peptides obviously enhanced the vasodilation of gastric mucosal blood vessels via improving the gastric mucosal blood flow and elevating the defensive factors nitric oxide (NO) and prostaglandin E2 (PGE2), and lowering the level of vasoconstrictor factor endothelin (ET)-1. Wheat peptides exhibited anti-inflammatory reaction through decreasing inducible nitric oxide synthase (iNOS) and pro-inflammatory cytokines tumor necrosis factor α (TNF-α), interleukin (IL)-1β, IL-6, and increasing trefoil factor 1 (TFF1) levels. Moreover, wheat peptides significantly down-regulated the expression of phosphorylated nuclear factor kappa-B (p-NF-κB) p65 proteins in the NF-κB signaling pathway. Altogether, wheat peptides protect gastric mucosa from ethanol-induced lesions in rats via improving the gastric microcirculation and inhibiting inflammation mediated by the NF-κB signaling transduction pathway.
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Affiliation(s)
- Lanlan Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Ruijun Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Wei Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yalin Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yong Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yong Qin
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yuhan Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yajun Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100083, China
- Correspondence: ; Tel.: +86-10-8280-2552
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30
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Alves Júnior EB, de Oliveira Formiga R, de Lima Serafim CA, Cristina Araruna ME, de Souza Pessoa ML, Vasconcelos RC, de Carvalho TG, de Jesus TG, Araújo AA, de Araujo Junior RF, Vieira GC, Sobral MV, Batista LM. Estragole prevents gastric ulcers via cytoprotective, antioxidant and immunoregulatory mechanisms in animal models. Biomed Pharmacother 2020; 130:110578. [PMID: 32750650 DOI: 10.1016/j.biopha.2020.110578] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/04/2020] [Accepted: 07/25/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Estragole is an aromatic organic compound belonging to the class of phenylpropanoids derived from cinnamic aldehydes and present in essential oils of plant species, such asRavensara anisata (madeira), Ocimum basilicum (manjericão/alfavaca) and Croton zehntneri (canelinha). Pharmacological studies report its anti-inflammatory, antioxidant and vasorelaxant activity. HYPOTHESIS/PURPOSE This study aimed to evaluate the acute non-clinical toxicity, gastroprotective activity and the related mechanisms of action. METHODS Acute toxicity was assessed according to OECD guide 423 in mice. Ethanol, stress, piroxicam and pylorus ligation-induced gastric ulcer models were used to investigate antiulcer properties. The related mechanisms of action were using the ethanol-gastric lesions protocol. RESULTS In the acute oral toxicity assay, doses of 300 or 2000 mg/kg of estragole administered orally in Swiss mice did not induce any behavioral changes. However, the dose of 2000 mg/kg showed a decrease in water and feed intake. Lethal dose 50 % (LD50) was set to be equal to or greater than 2500 mg/kg, according to OECD. In all evaluated protocols, estragole (31.25, 62.5, 125 and 250 mg/kg) significantly reduced the area of ulcerative lesion when compared to control groups. To investigate the mechanisms involved in the gastroprotective activity, the antisecretory or neutralizing of gastric secretion, cytoprotectant, antioxidant and immunoregulatory effects were evaluated. Results showed that treatment with estragole (250 mg/kg) reduced (p < 0.05) the volume of the gastric juice. Besides, sulfhydryl groups, nitric oxide, mucus and prostaglandins seems to be involved in the gastroprotective property. Treatment also increased (p < 0.001) levels of reduced glutathione (GSH), interleukin-10 (IL-10) and positive cells marked for glutathione peroxidase (GPx) and cyclooxygenase 2 (COX-2). It also reduced (p < 0.001) malondialdehyde (MDA), myeloperoxidase (MPO), interleukin-1 beta (IL-1β), tumor necrosis factor-alpha (TNF-α) and inducible nitric oxide synthase (iNOS) (p < 0.05) levels. CONCLUSION Thus, it is possible to infer that estragole presents gastroprotective activity related to antisecretory, cytoprotective, antioxidant and immunomodulatory mechanisms.
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Affiliation(s)
- Edvaldo Balbino Alves Júnior
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Rodrigo de Oliveira Formiga
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Catarina Alves de Lima Serafim
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Maria Elaine Cristina Araruna
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Michele Liz de Souza Pessoa
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Roseane Carvalho Vasconcelos
- Department of Biophysics and Pharmacology, Biosciences Center Federal University of Rio Grande do Norte, Natal, Brazil.
| | - Thais Gomes de Carvalho
- Department of Morphology, Histology and Basic Pathology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.
| | - Tamires Gonçalves de Jesus
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Aurigena Antunes Araújo
- Department of Biophysics and Pharmacology, Biosciences Center Federal University of Rio Grande do Norte, Natal, Brazil.
| | | | - Giciane Carvalho Vieira
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Marianna Vieira Sobral
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
| | - Leônia Maria Batista
- Postgraduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
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31
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Guo M, Yu H, Meng M, Wang C. Research on the structural characteristics of a novel Chinese Iron Yam polysaccharide and its gastroprotection mechanism against ethanol-induced gastric mucosal lesion in a BALB/c mouse model. Food Funct 2020; 11:6054-6065. [PMID: 32558848 DOI: 10.1039/c9fo02642h] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, a triple-helix Chinese Iron Yam polysaccharide (CIYP) with a molecular weight of 1.67 × 103 kDa was obtained. The CIYP was extracted with deionized water followed by deproteination, decoloration and purification using anion-exchange chromatography and size exclusion chromatography. Its structural characteristics and micromorphology were investigated by GC-MS, periodate oxidation and Smith degradation, FT-IR, NMR spectroscopy, SEM and AFM. The results showed that CIYP is a catenarian polysaccharide composed of rhamnose, arabinose, mannose, glucose, galactose and galacturonic acid in the ratio of 1 : 1.33 : 8.31 : 2.83 : 1.12 : 2.62. Meanwhile, the gastric mucosa protective effect of CIYP on an ethanol-injured BALB/c mouse model was investigated. It was found that the preventive CIYP-treatment groups (200 and 400 mg kg-1 d-1) showed gastric mucosa protective effects on the BALB/c mouse model. The lesion index and lesion inhibition rate of the CIYP and cimetidine treatment groups were significantly altered compared with the ethanol-induced gastric mucosal lesion (GML) group. Moreover, the administration of CIYP showed definite effects of increasing the NO, PGE2 and EGF levels, and SOD activities, and reducing the MDA levels of gastric mucosa tissues to prevent gastric oxidative stress. Histopathological analysis indicated that the microscopic morphology of gastric mucosal tissues was changed after being damaged by ethanol and the damage was significantly reduced after CIYP administration. Finally, the western blot and quantitative real-time polymerase chain reaction (qRT-PCR) results provided comprehensive evidence that the CIYP could repress gastric inflammation through the reduction of IL-1β, TNF-α and IL-6, prevent gastric oxidative stress through the inhibition of lipid peroxides, and favor cell survival via downregulating the TAK1, MKK3, P-p38 and Bax levels and upregulating the protein expression levels, compared with the CIM group.
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Affiliation(s)
- Mingzhu Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China.
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32
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Pearce SC, Weber GJ, van Sambeek DM, Soares JW, Racicot K, Breault DT. Intestinal enteroids recapitulate the effects of short-chain fatty acids on the intestinal epithelium. PLoS One 2020; 15:e0230231. [PMID: 32240190 PMCID: PMC7117711 DOI: 10.1371/journal.pone.0230231] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/25/2020] [Indexed: 12/23/2022] Open
Abstract
Enteroids are cultured primary intestinal epithelial cells that recapitulate epithelial lineage development allowing for a more complex and physiologically relevant model for scientific study. The large presence of intestinal stem cells (ISC) in these enteroids allows for the study of metabolite effects on cellular processes and resulting progeny cells. Short-chain fatty acids (SCFA) such as butyrate (BUT) are bacterial metabolites produced in the gastrointestinal tract that are considered to be beneficial to host cells. Therefore, the objective was to study the effects of SCFAs on biomarkers of ISC activity, differentiation, barrier function and epithelial defense in the intestine using mouse and human enteroid models. Enteroids were treated with two concentrations of acetate (ACET), propionate (PROP), or BUT for 24 h. Enteroids treated with BUT or PROP showed a decrease in proliferation via EdU uptake relative to the controls in both mouse and human models. Gene expression of Lgr5 was shown to decrease with BUT and PROP treatments, but increased with ACET. As a result of BUT and PROP treatments, there was an increase in differentiation markers for enterocyte, Paneth, goblet, and enteroendocrine cells. Gene expression of antimicrobial proteins Reg3β, Reg3γ, and Defb1 were stimulated by BUT and PROP, but not by ACET which had a greater effect on expression of tight junction genes Cldn3 and Ocln in 3D enteroids. Similar results were obtained with human enteroids treated with 10 mM SCFAs and grown in either 3D or Transwell™ model cultures, although tight junctions were influenced by BUT and PROP, but not ACET in monolayer format. Furthermore, BUT and PROP treatments increased transepithelial electrical resistance after 24 h compared to ACET or control. Overall, individual SCFAs are potent stimulators of cellular gene expression, however, PROP and especially BUT show great efficacy for driving cell differentiation and gene expression.
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Affiliation(s)
- Sarah C. Pearce
- Performance Nutrition Team, Combat Feeding Directorate, Combat Capabilities Development Command Soldier Center, Natick, Massachusetts, United States of America
- * E-mail:
| | - Gregory J. Weber
- Performance Nutrition Team, Combat Feeding Directorate, Combat Capabilities Development Command Soldier Center, Natick, Massachusetts, United States of America
| | - Dana M. van Sambeek
- Performance Nutrition Team, Combat Feeding Directorate, Combat Capabilities Development Command Soldier Center, Natick, Massachusetts, United States of America
| | - Jason W. Soares
- Biological Sciences & Technology Team, Soldier Performance Optimization Directorate, Combat Capabilities Development Command Soldier Center, Natick, Massachusetts, United States of America
| | - Kenneth Racicot
- Biological Sciences & Technology Team, Soldier Performance Optimization Directorate, Combat Capabilities Development Command Soldier Center, Natick, Massachusetts, United States of America
| | - David T. Breault
- Division of Endocrinology, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Harvard Stem Cell Institute, Cambridge, Massachusetts, United States of America
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, United States of America
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Muc5ac null mice are predisposed to spontaneous gastric antro-pyloric hyperplasia and adenomas coupled with attenuated H. pylori-induced corpus mucous metaplasia. J Transl Med 2019; 99:1887-1905. [PMID: 31399638 PMCID: PMC6927550 DOI: 10.1038/s41374-019-0293-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 12/15/2022] Open
Abstract
Gastric cancer (GC) is the third leading cause of cancer-related deaths worldwide and is strongly associated with chronic Helicobacter pylori (Hp) infection. The ability of Hp to closely adhere to the gastric surface protective mucous layer containing mucins (MUC in humans and Muc in animals), primarily Muc5ac, is integral in the stepwise pathogenesis from gastritis to cancer. To probe the role of Muc5ac in Hp-induced gastric pathology, Muc5ac-/- and Muc5ac+/+ (WT) mice were experimentally infected with Hp Sydney strain (SS1). At 16 weeks and 32 weeks post infection (wpi), groups of mice were euthanized and evaluated for the following: gastric histopathological parameters, immunohistochemical expression of mucins (Muc5ac, Muc1, Muc2), Trefoil factor family proteins (Tff1 and Tff2), Griffonia (Bandeiraea) simplicifolia lectin II (GSL II) (mucous metaplasia marker) and Clusterin (Spasmolytic Polypeptide Expressing Metaplasia (SPEM) marker), Hp colonization density by qPCR and gastric cytokine mRNA levels. Our results demonstrate that Muc5ac-/- mice developed spontaneous antro-pyloric proliferation, adenomas and in one case with neuroendocrine differentiation; these findings were independent of Hp infection along with strong expression levels of Tff1, Tff2 and Muc1. Hp-infected Muc5ac-/- mice had significantly lowered gastric corpus mucous metaplasia at 16 wpi and 32 wpi (P = 0.0057 and P = 0.0016, respectively), with a slight reduction in overall gastric corpus pathology. GSII-positive mucous neck cells were decreased in Hp-infected Muc5ac-/- mice compared to WT mice and clusterin positivity was noted within metaplastic glands in both genotypes following Hp infection. Additionally, Hp colonization densities were significantly higher in Muc5ac-/- mice compared to WT at 16 wpi in both sexes (P = 0.05) along with a significant reduction in gastric Tnfα (16 wpi-males and females, P = 0.017 and P = 0.036, respectively and 32 wpi-males only, P = 0.025) and Il-17a (16 wpi-males) (P = 0.025). Taken together, our findings suggest a protective role for MUC5AC/Muc5ac in maintaining gastric antral equilibrium and inhibiting Hp colonization and associated inflammatory pathology.
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Kitay AM, Ferstl FS, Link A, Geibel JP. Induction of Secretagogue Independent Gastric Acid Secretion via a Novel Aspirin-Activated Pathway. Front Physiol 2019; 10:1264. [PMID: 31649553 PMCID: PMC6795678 DOI: 10.3389/fphys.2019.01264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 09/17/2019] [Indexed: 12/21/2022] Open
Abstract
Aspirin has been widely recommended for acute and chronic conditions for over 2,000 years. Either single or repetitive doses are commonly used for analgesic and antipyretic reasons and to prevent heart attacks, stroke, and blood clot formation. Recent studies show that it can also be used chronically to dramatically reduce the risk of a variety of cancers. However, prolonged usage of aspirin can cause severe damage to the mucosal barrier, increasing the risk of ulcer formation and GI-bleeding events. In the present study, we show the effects of acute low-dose aspirin exposure as an active secretagogue-inducing gastric acid secretion. Studies were carried out with isolated gastric glands using the pH-sensitive dye BCECF-AM to assess acid secretion. The non-selective NOS inhibitor L-NAME (30 μM), or the specific inhibitor ODQ (1H-[1,2,4]Oxadiazolo[4,3-a]quinoxalin-1-one) was applied while monitoring intracellular pH. The effects of basolateral exposure to aspirin (acetylsalicylic acid, ASA) caused activation of gastric acid secretion via the H+, K+-ATPase. Our data suggest that aspirin increases nitric oxide (NO) production, which in turn activates acid secretion. Exposure of gastric glands to either the non-selective NOS inhibitor L-NAME, and the highly selective, soluble guanylyl cyclase inhibitor 1H-[1,2,4]Oxadiazolo[4,3-a]quinoxalin-1-one (ODQ) effectively inhibited aspirin-dependent gastric acid secretion. Aspirin can be considered as a novel secretagogue, in the way that it activates the H+, K+-ATPase. With increased daily aspirin consumption, our findings have important implications for all individuals consuming aspirin even in low doses and the potential risks for increased acid secretion.
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Affiliation(s)
- Alice Miriam Kitay
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Department of Internal Medicine, Medical Faculty University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Alexander Link
- Department of Internal Medicine, Medical Faculty University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - John Peter Geibel
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT, United States
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Moawad H, El Awdan SA, Sallam NA, El-Eraky WI, Alkhawlani MA. Gastroprotective effect of cilostazol against ethanol- and pylorus ligation–induced gastric lesions in rats. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1605-1616. [DOI: 10.1007/s00210-019-01699-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 07/15/2019] [Indexed: 12/12/2022]
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Atnip A, Giusti MM, Sigurdson GT, Failla ML, Chitchumroonchokchai C, Bomser JA. The NCI-N87 Cell Line as a Gastric Epithelial Model to Study Cellular Uptake, Trans-Epithelial Transport, and Gastric Anti-Inflammatory Properties of Anthocyanins. Nutr Cancer 2019; 72:686-695. [PMID: 31353956 DOI: 10.1080/01635581.2019.1644354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Anthocyanins are ubiquitous plant pigments with reported antioxidant, anti-inflammatory, and anti-cancer activities. To better understand these benefits, metabolism of anthocyanins requires further evaluation, especially in the stomach. Mammalian cell cultures provide useful models for investigating compound metabolism and absorption, but they are generally maintained at physiological pH. The NCI-N87 cell line is an acid-stable model of the gastric epithelium used to study gastric drug metabolism. The objective of this work was to investigate the uptake, trans-epithelial transport, and anti-inflammatory activity of anthocyanins by the NCI-N87 cell line. The cells formed a coherent monolayer, stable ≤32 days post confluency. Minimal effects on monolayer integrity were observed when the pH of the apical chamber was adjusted to pH 3.0, 5.0, or 7.4. Anthocyanins were transported across the NCI-N87 cell monolayer at 37 °C, but not at 0 °C, suggesting a facilitated process. Chokeberry anthocyanins (0-1500 μM) were not cytotoxic. At apical pH 3.0, they had anti-inflammatory properties by significantly attenuating IL-8 secretion when added to medium before, during, and after incubation with IL-1β. These results suggest that the NCI-N87 cell line is a physiologically relevant model for in vitro studies of the transport, anti-inflammatory and potential anti-carcinogenic activities of anthocyanins in gastric tissue.
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Affiliation(s)
- Allison Atnip
- Department of Food Science and Technology, The Ohio State University, Columbus, OH, USA
| | - M Mónica Giusti
- Department of Food Science and Technology, The Ohio State University, Columbus, OH, USA
| | - Gregory T Sigurdson
- Department of Food Science and Technology, The Ohio State University, Columbus, OH, USA
| | - Mark L Failla
- Department of Human Sciences, The Ohio State University, Columbus, OH, USA
| | | | - Joshua A Bomser
- Department of Human Sciences, The Ohio State University, Columbus, OH, USA
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Abstract
PURPOSE OF REVIEW The gastroduodenal mucosal layer is a complex and dynamic system that functions in an interdependent manner to resist injury. We review and summarize the most updated knowledge about gastroduodenal defense mechanisms and specifically address (a) the mucous barrier, (b) membrane and cellular properties, and vascular, hormonal, and (c) gaseous mediators. RECENT FINDINGS Trefoil factor family peptides play a crucial role in cellular restitution by increasing cellular permeability and expression of aquaporin channels, aiding cellular migration and tissue repair. Additionally, evidence suggests that the symptoms of functional dyspepsia may be attributed to alterations in the duodenum, including low-grade inflammation and increased mucosal permeability. The interaction of the various mucosal protective components helps maintain structural and functional homeostasis. There is increasing evidence suggesting that the upper GI microbiota plays a crucial role in the defense mechanisms. However, this warrants further investigation.
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Affiliation(s)
- Gian M Galura
- Department of Internal Medicine, Texas Tech University Health Science Center, El Paso, TX, USA
| | - Luis O Chavez
- Department of Internal Medicine, Texas Tech University Health Science Center, El Paso, TX, USA
| | - Alejandro Robles
- Department of Internal Medicine, Texas Tech University Health Science Center, El Paso, TX, USA
| | - Richard McCallum
- Department of Gastroenterology, Texas Tech University Health Science Center, El Paso, TX, USA.
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da Luz BB, de Oliveira AF, Maria Ferreira D, Dallazen JL, Cipriani TR, de Souza LM, Werner MFDP. Chemical composition, antioxidant and gastrointestinal properties of Sedum dendroideum Moc & Sessé ex DC leaves tea infusion. JOURNAL OF ETHNOPHARMACOLOGY 2019; 231:141-151. [PMID: 30445105 DOI: 10.1016/j.jep.2018.11.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/06/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sedum dendroideum Moc & Sessé ex DC (Crassulaceae) is a medicinal plant employed in Mexican and Brasilian folk medicine as juice or infusion, as remedy for the treatment of different diseases, including gastric disorders. AIM OF THE STUDY Although some studies carried out with Sedum dendroideum have demonstrated its gastroprotective effect, the purpose of this study was to elucidate the chemical constituents, antioxidant, cytotoxic and mechanisms underlying the gastrointestinal properties of Sedum dendroideum accordingly its traditional use, as fresh leaves tea infusion (SDI). MATERIALS AND METHODS Chemical constituents were analyzed using high performance liquid chromatography and mass spectrometry (HPLC-MS). Antioxidant and cytotoxicity were evaluated in in vitro assays. The efficacy of the SDI on macroscopic ulcer appearance, mucus and GSH maintenance on ethanol- and indomethacin-induced ulcer models, gastric acid secretion and gastrointestinal motility were investigated. RESULTS Phytochemical analysis by HPLC-MS revealed the presence of different flavonol glycosides, containing myricetin and quercetin, along with the kaempferol as aglycones. In vitro pharmacological investigation of SDI demonstrated potent antioxidant activity in DPPH assay (IC50: 13.25 ± 3.37 µg/mL) and absence of cytotoxicity in Caco-2 cells by MTT method. Oral administration of SDI (ED50 of 191.00 ± 0.08 mg/kg) in rats promoted gastroprotection against ethanol or indomethacin in rats through reinforcement of gastric wall mucus, GSH content and nitric oxide release, without present antisecretory properties. The gastroprotective effect was maintained when SDI (19 mg/kg) was administrated by intraperitoneal route. Furthermore, SDI (150 mg/kg) unchanged the gastric emptying but increase small bowel transit in mice through cholinergic pathways. CONCLUSIONS Collectively, this study confirmed that Sedum dendroideum promotes gastroprotection through preventing of endogenous defense mechanisms, represented by mucus and GSH without changes gastric acid secretion. Sedum dendroideum tea infusion features a chemical profile that contributes to the antioxidant and gastric health-promoting effects, supporting the use in folk medicine for the treatment of gastrointestinal disorders.
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Affiliation(s)
| | - Ana Flávia de Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Parana, Curitiba, PR, Brazil
| | - Daniele Maria Ferreira
- Department of Pharmacology, Federal University of Parana, Curitiba, PR, Brazil; Department of Biochemistry and Molecular Biology, Federal University of Parana, Curitiba, PR, Brazil
| | - Jorge Luiz Dallazen
- Department of Pharmacology, Federal University of Parana, Curitiba, PR, Brazil
| | - Thales Ricardo Cipriani
- Department of Biochemistry and Molecular Biology, Federal University of Parana, Curitiba, PR, Brazil
| | - Lauro Mera de Souza
- Department of Biochemistry and Molecular Biology, Federal University of Parana, Curitiba, PR, Brazil; Pelé Pequeno Príncipe Research Institute, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
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Ajeigbe KO, Emikpe BO, Olaleye SB. Effects of artemisinin, with or without lumefantrine and amodiaquine on gastric ulcer healing in rat. J Basic Clin Physiol Pharmacol 2019; 29:515-524. [PMID: 29702486 DOI: 10.1515/jbcpp-2017-0145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 03/17/2018] [Indexed: 12/23/2022]
Abstract
Abstract
Background
Antimalarial drugs have been shown to predispose the stomach to ulceration in rats. However, their role in the modulation of gastric ulcer healing is not known. The aim of the present study is to investigate the effect of artemisinin-based combination therapies on ulcer healing.
Methods
Gastric kissing ulcers were induced in 40 male albino rats (150–180 g) using 0.2 mL 50% acetic acid. One day after the ulcer induction, experimental rats were divided into four groups and treated once daily orally for 3 days as follows: (1) normal saline, (2) artemether-lumefantrine (2/12 mg/kg), (3) artesunate-amodiaquine (4/10 mg/kg), and (4) artesunate (2 mg/kg) only. A fifth group of 10 rats served as overall control with no ulcer induced and no treatment given. Ulcer healing was determined on days 4 and 7 post induction using ulcer score and planimetry.
Results
Artesunate decreased ulcer severity by 12.5% and 52.0% on days 4 and 7, respectively. Significant increases in severity were observed in rats treated with artemether-lumefantrine (25.0% and 40.0%) and artesunate-amodiaquine (50.0% and 95.0%). Lipid peroxidation was decreased by artesunate by day 7 (27%; p<0.05) but increased in artemether-lumefantrine and artesunate-amodiaquine administered rats (63.6% and 55%; p<0.05). The activity of superoxide dismutase was reduced by artesunate-amodiaquine on day 7 (22%; p<0.05) but no effect in the artemether-lumefantrine treatment. Neutrophil infiltration, total leukocyte count, neutrophil-lymphocyte ratio, and C-reactive protein values were significantly increased in the artemether-lumefantrine and artesunate-amodiaquine treated groups when compared with the untreated ulcer control group (p<0.05). These variables were all reduced by artesunate (p<0.05).
Conclusions
This study revealed that although artesunate may be beneficial in gastric ulcer healing, its combination with either lumefantrine or amodiaquine may delay healing of gastric mucosal injury.
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Affiliation(s)
- Kazeem O Ajeigbe
- Gastrointestinal Secretion and Inflammation Research Unit, Department of Physiology, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.,Department of Physiology, Igbinedion University, Okada, Benin, Edo State, Nigeria
| | - Benjamin O Emikpe
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Samuel Babafemi Olaleye
- Gastrointestinal Secretion and Inflammation Research Unit, Department of Physiology, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria, Phone: +2348023255893
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Bus JD, Stockhofe N, Webb LE. Invited review: Abomasal damage in veal calves. J Dairy Sci 2018; 102:943-960. [PMID: 30591333 DOI: 10.3168/jds.2018-15292] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 11/01/2018] [Indexed: 01/21/2023]
Abstract
Within all cattle production systems, veal calves are the most severely affected by abomasal damage, with current prevalence at slaughter ranging from 70 to 93% of all animals affected. Although most damage is found in the pyloric region of the abomasum, fundic lesions are also found. Despite past research into the etiology of abomasal damage and the many risk factors that have been proposed, consensus on the causal factors of abomasal damage in veal calves has not yet been reached. The aim of this review was to integrate and analyze available information on the etiology of, and possible risk factors for, abomasal damage in veal calves. We describe various proposed pathways through which risk factors may contribute to damage formation and conclude that the etiology of abomasal damage is most likely multifactorial, with diet being a main contributor. Pyloric lesions, the most common type of damage in veal calves, are likely the result of large and infrequent milk and solid feed meals, whereas fundic lesions may be caused by stress, although the evidence for this is inconclusive. Providing calves with multiple smaller milk and solid feed meals (or ad libitum provision) may decrease abomasal damage. In future research, ulcers, erosions, and scars as well as fundic and pyloric lesions should be recorded separately, because etiologies of these may differ. Further research is required to understand the exact pathway(s) by which milk replacer causes abomasal damage in veal calves; that is, whether low abomasal pH, overloading, or composition are important. Further research is also required to elucidate whether rapid intake of milk replacer and solid feed, which is influenced by restricted amounts fed, inter-calf competition, and calf breed, increases abomasal damage. Research is also needed into the effect of medication and nutrient deficiencies other than iron. The types of experimental designs that can be used for future research could be enhanced if a means to assess abomasal damage antemortem is developed. We conclude that it is unlikely that abomasal or ruminal hairballs, iron deficiency, water provision, and various infections and diseases are significant contributors to abomasal damage in veal calves.
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Affiliation(s)
- J D Bus
- Animal Production Systems Group, Wageningen University and Research, PO Box 338, 6700 AH Wageningen, the Netherlands
| | - N Stockhofe
- Wageningen Bioveterinary Research, Wageningen University and Research, PO Box 65, 8200 AB Lelystad, the Netherlands
| | - L E Webb
- Animal Production Systems Group, Wageningen University and Research, PO Box 338, 6700 AH Wageningen, the Netherlands.
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Evaluation of gastroprotective and ulcer healing activities of yellow mombin juice from Spondias mombin L. PLoS One 2018; 13:e0201561. [PMID: 30395566 PMCID: PMC6218193 DOI: 10.1371/journal.pone.0201561] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/17/2018] [Indexed: 12/13/2022] Open
Abstract
Spondias mombin L. (yellow mombin) is a tree with a nutritional fruit that is commonly consumed in the North and Northeast of Brazil, as the juice of its pulp is rich in antioxidant compounds. This study aimed to investigate the gastroprotective and ulcer healing activities of yellow mombin juice (YMJ) in Wistar rats, and to elucidate the possible involved mechanisms. Phytochemical characterization of the lyophilized fruit juice was performed by high-performance liquid chromatography (HPLC). The gastroprotective activity of YMJ was investigated in ethanol (25, 50, and 100% YMJ) and indomethacin (100% YMJ) models of acute gastric ulcer in rats. Then, the effect of YMJ on mucus production and gastric secretions, and the involvement of non-protein sulfhydryl groups and prostaglandins in the gastroprotective process were examined. Moreover, the ulcer healing effect of YMJ was investigated in a model of acetic acid-induced chronic ulcer through histological and immunohistochemical analyses. HPLC results identified the presence of epicatechin (7.1 ± 1.6 μg/mL) and quercetin (17.3 ± 2.5 μg/mL) in YMJ. Ethanol-induced gastric lesions were inhibited by YMJ (25, 50, and 100%) by 42.42, 45.09, and 98.21% respectively, and indomethacin-induced lesions were inhibited by YMJ (100%) by 58.96%, compared to control group. Moreover, YMJ reduced gastric content and total acidy by 57.35 and 71.97%, respectively, compared to the control group. Treatment with YMJ also promoted healing of chronic ulcer, regeneration of the gastric mucosa, and restoration of mucus levels in glandular cells, as confirmed by histological analysis. It also increased cellular proliferation, as demonstrated by high reactivity to Ki-67 and bromodeoxyuridine. In conclusion, YMJ was found to possess gastroprotective and ulcer healing activities that are correlated to its antisecretory action. These results support the commercial exploration of YMJ as a functional food.
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Pane K, Cafaro V, Avitabile A, Torres MDT, Vollaro A, De Gregorio E, Catania MR, Di Maro A, Bosso A, Gallo G, Zanfardino A, Varcamonti M, Pizzo E, Di Donato A, Lu TK, de la Fuente-Nunez C, Notomista E. Identification of Novel Cryptic Multifunctional Antimicrobial Peptides from the Human Stomach Enabled by a Computational-Experimental Platform. ACS Synth Biol 2018; 7:2105-2115. [PMID: 30124040 DOI: 10.1021/acssynbio.8b00084] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Novel approaches are needed to combat antibiotic resistance. Here, we describe a computational-experimental framework for the discovery of novel cryptic antimicrobial peptides (AMPs). The computational platform, based on previously validated antimicrobial scoring functions, indicated the activation peptide of pepsin A, the main human stomach protease, and its N- and C-terminal halves as antimicrobial peptides. The three peptides from pepsinogen A3 isoform were prepared in a recombinant form using a fusion carrier specifically developed to express toxic peptides in Escherichia coli. Recombinant pepsinogen A3-derived peptides proved to be wide-spectrum antimicrobial agents with MIC values in the range 1.56-50 μM (1.56-12.5 μM for the whole activation peptide). Moreover, the activation peptide was bactericidal at pH 3.5 for relevant foodborne pathogens, suggesting that this new class of previously unexplored AMPs may contribute to microbial surveillance within the human stomach. The peptides showed no toxicity toward human cells and exhibited anti-infective activity in vivo, reducing by up to 4 orders of magnitude the bacterial load in a mouse skin infection model. These peptides thus represent a promising new class of antibiotics. We envision that computationally guided data mining approaches such as the one described here will lead to the discovery of antibiotics from previously unexplored sources.
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Affiliation(s)
- Katia Pane
- IRCCS SDN, Via E. Gianturco, 113, 80143 Naples, Italy
| | - Valeria Cafaro
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Angela Avitabile
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Marcelo Der Torossian Torres
- Synthetic Biology Group, MIT Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Biological Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02139, United States
- The Center for Microbiome Informatics and Therapeutics, Cambridge, Massachusetts 02139, United States
| | - Adriana Vollaro
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples 80131, Italy
| | - Eliana De Gregorio
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples 80131, Italy
| | - Maria Rosaria Catania
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples 80131, Italy
| | - Antimo Di Maro
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Naples, Vanvitelli, Caserta 81100, Italy
| | - Andrea Bosso
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Giovanni Gallo
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Elio Pizzo
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Alberto Di Donato
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - Timothy K. Lu
- Synthetic Biology Group, MIT Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Biological Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02139, United States
- The Center for Microbiome Informatics and Therapeutics, Cambridge, Massachusetts 02139, United States
| | - Cesar de la Fuente-Nunez
- Synthetic Biology Group, MIT Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Biological Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02139, United States
- The Center for Microbiome Informatics and Therapeutics, Cambridge, Massachusetts 02139, United States
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
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Adeniyi OS, Emikpe BO, Olaleye SB. Accelerated gastric ulcer healing in thyroxine-treated rats: roles of gastric acid, mucus, and inflammatory response. Can J Physiol Pharmacol 2018; 96:597-602. [DOI: 10.1139/cjpp-2017-0399] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The roles of gastric acid, mucus, and inflammation on the pro-ulcer-healing effect of thyroid hormone were investigated. Male Wistar rats were randomly divided into four groups: control, thyroidectomised, thyroidectomised with thyroxine treatment (100 μg·kg–1·day–1), and sham-operated animals treated with thyroxine. Thirty-five days after thyroidectomy, sham surgery, or thyroxine treatment, an ulcer was experimentally induced. Healing was assessed 3, 7, and 10 days post-ulceration by measurement of the ulcer area, gastric mucus and acid secretion, and neutrophil lymphocyte ratio (NLR) as an index of inflammation. By day 10, the ulcer area had decreased in all groups. Recovery was significantly greater (P < 0.05) in thyroxine-treated rats (78.5% ± 1.6% reduction in ulcer area) than in controls (72.3% ± 1.2% reduction) or thyroidectomised rats (63.3% ± 1.9% reduction). Thyroxine-treated animals also had the highest reduction in NLR (65.0% ± 2.5%). Mucus secretion was significantly lower (P < 0.05) in thyroidectomised rats by days 3 and 7. Furthermore, by day 10, the concentration of basal acid decreased by 77.4% ± 2.6% in thyroxine-treated, 65.0% ± 0.0% in control, and 51.5% ± 3.3% in thyroidectomised rats. We conclude that thyroxine accelerates gastric ulcer healing by altering mucus and acid secretion and reducing NLR.
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Affiliation(s)
- Olasupo S. Adeniyi
- Department of Physiology, Faculty of Basic and Allied Medical Sciences, Benue State University, Makurdi, Benue State, Post Code 972221, Nigeria
| | - Benjamin O. Emikpe
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Post Code 200284, Nigeria
| | - Samuel B. Olaleye
- Laboratory for Gastrointestinal Secretion and Inflammation Research, Department of Physiology, College of Medicine, University of Ibadan, Ibadan, Oyo State, Post Code 200284, Nigeria
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Sáenz JB, Mills JC. Acid and the basis for cellular plasticity and reprogramming in gastric repair and cancer. Nat Rev Gastroenterol Hepatol 2018; 15:257-273. [PMID: 29463907 PMCID: PMC6016373 DOI: 10.1038/nrgastro.2018.5] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Subjected to countless daily injuries, the stomach still functions as a remarkably efficient digestive organ and microbial filter. In this Review, we follow the lead of the earliest gastroenterologists who were fascinated by the antiseptic and digestive powers of gastric secretions. We propose that it is easiest to understand how the stomach responds to injury by stressing the central role of the most important gastric secretion, acid. The stomach follows two basic patterns of adaptation. The superficial response is a pattern whereby the surface epithelial cells migrate and rapidly proliferate to repair erosions induced by acid or other irritants. The stomach can also adapt through a glandular response when the source of acid is lost or compromised (that is, the process of oxyntic atrophy). We primarily review the mechanisms governing the glandular response, which is characterized by a metaplastic change in cellular differentiation known as spasmolytic polypeptide-expressing metaplasia (SPEM). We propose that the stomach, like other organs, exhibits marked cellular plasticity: the glandular response involves reprogramming mature cells to serve as auxiliary stem cells that replace lost cells. Unfortunately, such plasticity might mean that the gastric epithelium undergoes cycles of differentiation and de-differentiation that increase the risk of accumulating cancer-predisposing mutations.
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Affiliation(s)
- José B. Sáenz
- Division of Gastroenterology, Department of Internal Medicine, Washington University School of Medicine
| | - Jason C. Mills
- Division of Gastroenterology, Department of Internal Medicine, Washington University School of Medicine
- Department of Developmental Biology, Washington University School of Medicine
- Department of Pathology and Immunology, Washington University School of Medicine
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Czekaj R, Majka J, Magierowska K, Sliwowski Z, Magierowski M, Pajdo R, Ptak-Belowska A, Surmiak M, Kwiecien S, Brzozowski T. Mechanisms of curcumin-induced gastroprotection against ethanol-induced gastric mucosal lesions. J Gastroenterol 2018; 53:618-630. [PMID: 28856444 PMCID: PMC5910495 DOI: 10.1007/s00535-017-1385-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 08/13/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND Curcumin, a pleiotropic substance used for centuries in traditional medicine, exhibits antioxidant, anti-inflammatory and antiproliferative efficacy against various tumours, but the role of curcumin in gastroprotection is little studied. We determined the effect of curcumin against gastric haemorrhagic lesions induced by 75% ethanol and alterations in gastric blood flow (GBF) in rats with cyclooxygenase-1 (COX-1) and COX-2 activity inhibited by indomethacin, SC-560 or rofecoxib, inhibited NO-synthase activity, capsaicin denervation and blockade of TRPV1 receptors by capsazepine. METHODS One hour after ethanol administration, the gastric mucosal lesions were assessed by planimetry, the GBF was examined by H2 gas clearance, plasma gastrin was determined by radioimmunoassay, and the gastric mucosal mRNA expression of Cdx-2, HIF-1α, HO-1 and SOD 2 was analysed by RT-PCR. RESULTS Curcumin, in a dose-dependent manner, reduced ethanol-induced gastric lesions and significantly increased GBF and plasma gastrin levels. Curcumin-induced protection was completely reversed by indomethacin and SC-560, and significantly attenuated by rofecoxib, L-NNA, capsaicin denervation and capsazepine. Curcumin downregulated Cdx-2 and Hif-1α mRNA expression and upregulated HO-1 and SOD 2, and these effects were reversed by L-NNA and further restored by co-treatment of L-NNA with L-arginine. CONCLUSIONS Curcumin-induced protection against ethanol damage involves endogenous PG, NO, gastrin and CGRP released from sensory nerves due to activation of the vanilloid TRPV1 receptor. This protective effect can be attributed to the inhibition of HIF-1α and Cdx-2 expression and the activation of HO-1 and SOD 2 expression.
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Affiliation(s)
| | - Jolanta Majka
- 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
| | - Zbigniew Sliwowski
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland
| | - Marcin Magierowski
- 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
| | - Agata Ptak-Belowska
- Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Cracow, Poland
| | - Marcin Surmiak
- 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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Antiulcer Activity and Potential Mechanism of Action of the Leaves of Spondias mombin L. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1731459. [PMID: 29854075 PMCID: PMC5944294 DOI: 10.1155/2018/1731459] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 01/25/2018] [Accepted: 02/18/2018] [Indexed: 12/12/2022]
Abstract
Spondias mombin L. is used in folk medicine for the treatment of inflammation and gastrointestinal diseases. Our study investigated the antiulcer activity of S. mombin ethanolic extract (SmEE) and its majority compounds gallic acid (GA) and ellagic acid (EA). Phytochemical characterization was performed by HPLC. The SmEE was screened for in vitro antioxidant activities using phosphomolybdenum, ABTS, DPPH, and FRAP assays. The antiulcer activity of SmEE, GA, EA, or GA + EA was evaluated by gastric lesion models induced by absolute ethanol and indomethacin. Following this, it is capable of stimulating mucus production, antisecretory capacity, and the influence of −SH groups and NO in the effect of SmEE. Its healing activity was demonstrated by acetic acid-induced chronic ulcer model. Anti-Helicobacter pylori activity was assessed by determining the MIC of the SmEE (64–1024 μg/mL). The HPLC results identified the presence of gallic acid and ellagic acid in SmEE. The extract showed antioxidant activity in vitro. SmEE (50, 100, and 200 mg/kg) reduced the area of ulcerative lesions induced by ethanol in 23.8, 90.3, and 90.2%, respectively. In NSAID model, the SmEE induced protection of 36.8, 49.4, and 49.9%, respectively. GA (10 mg/kg) or EA (7 mg/kg) or the association of GA + EA (10 + 7 mg/kg) inhibited the ethanol-induced lesions in 71.8, 70.9, and 94.9%, respectively, indicating synergistic action. SmEE (100 mg/kg) decreased acid secretion and H+ concentration in the gastric contents, increased levels of mucus, and showed to be dependent of −SH groups and NO on the protection of the gastric mucosa. In chronic ulcer model, SmEE reduced the gastric area lesion. SmEE showed anti-H. pylori activity. In conclusion, our study showed that SmEE has antiulcerogenic activity. GA and EA are isolated gastric protectors and, when associated, acted synergistically to protect the gastric mucosa.
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A slippery slope: On the origin, role and physiology of mucus. Adv Drug Deliv Rev 2018; 124:16-33. [PMID: 29108861 DOI: 10.1016/j.addr.2017.10.014] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/17/2017] [Accepted: 10/29/2017] [Indexed: 02/07/2023]
Abstract
The mucosa of the gastrointestinal tract, eyes, nose, lungs, cervix and vagina is lined by epithelium interspersed with mucus-secreting goblet cells, all of which contribute to their unique functions. This mucus provides an integral defence to the epithelium against noxious agents and pathogens. However, it can equally act as a barrier to drugs and delivery systems targeting epithelial passive and active transport mechanisms. This review highlights the various mucins expressed at different mucosal surfaces on the human body, and their role in creating a mucoid architecture to protect epithelia with specialized functions. Various factors compromising the barrier properties of mucus have been discussed, with an emphasis on how disease states and microbiota can alter the physical properties of mucus. For instance, Akkermansia muciniphila, a bacterium found in higher levels in the gut of lean individuals induces the production of a thickened gut mucus layer. The aims of this article are to elucidate the different physiological, biochemical and physical properties of bodily mucus, a keen appreciation of which will help circumvent the slippery slope of challenges faced in achieving effective mucosal drug and gene delivery.
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Gastroprotective activity of polysaccharide from Hericium erinaceus against ethanol-induced gastric mucosal lesion and pylorus ligation-induced gastric ulcer, and its antioxidant activities. Carbohydr Polym 2018; 186:100-109. [PMID: 29455967 DOI: 10.1016/j.carbpol.2018.01.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 12/22/2017] [Accepted: 01/01/2018] [Indexed: 12/19/2022]
Abstract
The gastroprotective activity of Hericium erinaceus polysaccharide was investigated in rats. The antioxidant activities were also evaluated. Pre-treatment of polysaccharide could reduce ethanol-induced gastric mucosal lesion and pylorus ligation-induced gastric ulcer. The polysaccharide exhibited scavenging activities of 1, 1-diphenyl-2-picryl-hydrozyl and hydroxyl radicals, and ferrous ion-chelating ability. In the pylorus ligation-induced model, gastric secretions (volume of gastric juice, gastric acid, pepsin and mucus) of ulcer rats administrated with polysaccharide were regulated. Levels of tumor necrosis factor-α and interleukins-1β in serum, and myeloperoxidase activity of gastric tissue were reduced, while antioxidant status of gastric tissue was improved. Defensive factors (nitric oxide, prostaglandin E2, epidermal growth factor) in gastric tissue were increased. These results indicate that Hericium erinaceus polysaccharide possess gastroprotective activity, and the possible mechanisms are related to its regulations of gastric secretions, improvements of anti-inflammatory and antioxidant status, as well as increments of defensive factors releases.
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Gastroprotective Value of Berries: Evidences from Methanolic Extracts of Morus nigra and Rubus niveus Fruits. Gastroenterol Res Pract 2017; 2017:7089697. [PMID: 29085427 PMCID: PMC5632455 DOI: 10.1155/2017/7089697] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 08/22/2017] [Indexed: 12/11/2022] Open
Abstract
This study evaluated the gastroprotective value of the methanol extracts from fruits of Morus nigra L. (black mulberry (MEMN)) and Rubus niveus Thunb (raspberry (MERN)). The total phenolic compounds and flavonoids were measured, as well as the in vitro 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenger activity. The gastroprotective effects of the extracts against 60% ethanol/0.3 M HCl were evaluated in mice. After that, the lipid hydroperoxides and reduced glutathione levels at ulcerated tissue were determined. The effects of extracts on H+/K+-ATPase activity were also verified. The extracts exhibited high contents of polyphenols; however, MERN presented 1.5-fold higher levels. The presence of flavonoids also was confirmed. In addition, MEMN (IC50 = 13.74 μg/mL) and MERN (IC50 = 14.97 μg/mL) scavenged DPPH radical. The MEMN reduced the ulcer area only at 300 mg/kg (p.o.) by 64.06%. Interestingly, MERN decreased the ulcer area in a superior potency (ED50 = 20.88 mg/kg), reducing the ulcer area by 81.86% at 300 mg/kg, and increased the gastric mucin levels. The antioxidant effects of extracts were evidenced by reduced lipoperoxides and increased reduction of glutathione amount in the gastric mucosa. However, MEMN or MERN did not change the H+/K+-ATPase activity. These results confirm that M. nigra and R. niveus are berries with a gastroprotective value by strengthening of gastric protective factors.
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Adeniyi OS, Makinde OV, Friday ET, Olaleye SB. Effects of quinine on gastric ulcer healing in Wistar rats. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2017; 14:/j/jcim.ahead-of-print/jcim-2016-0132/jcim-2016-0132.xml. [PMID: 28665790 DOI: 10.1515/jcim-2016-0132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/22/2017] [Indexed: 11/15/2022]
Abstract
Background Quinine (QT) is an important anti-malarial drug; however, there is little information about its effects on the gut. Therefore, this study aimed to investigate the effects of a therapeutic dose of QT on the healing of gastric ulcer in rats. Methods Male Wistar rats weighing 150-200 g were divided into three groups: control rats without ulcer (group 1), ulcerated rats treated with 1 mL/kg (p.o.) normal saline (NS) (group 2), and ulcerated rats treated with 10 mg/kg (p.o.) QT (group 3). Ulcers were induced by serosal application of 80 % acetic acid to the stomach of rats anaesthetized with 50 mg/kg thiopentone sodium and treatment was given three times daily. Healing was assessed on days 3, 7 and 10 after ulcer induction by macroscopic measurement of: ulcer area, histology, lipid peroxidation, superoxide dismutase activity and gastric mucus secretion. Results At day 3, there was no significant difference (p>0.05) in ulcer areas between NS- and QT-treated rats. By day 10, however, the percentage area healed in NS treated (59.6±2.35 %) was significantly higher (p<0.05) than in QT rats (49.0±2.20 %) and clearing of inflammatory cells and re-epithelization was greater in NS-treated group. By days 7 and 10, lipid peroxidation was significantly higher in QT animals, when compared with NS-treated rats and controls (p<0.05). Superoxide dismutase activity and mucus secretion were significantly (p<0.05) higher in NS-treated than QT-treated rats. Conclusions QT delayed ulcer healing by prolonging the inflammatory phase of healing, increasing oxidative stress, reducing antioxidant activity and gastric mucus secretion.
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