1
|
Xie Y, An L, Wang X, Ma Y, Bayoude A, Fan X, Yu B, Li R. Protection effect of Dioscoreae Rhizoma against ethanol-induced gastric injury in vitro and in vivo: A phytochemical and pharmacological study. JOURNAL OF ETHNOPHARMACOLOGY 2024; 333:118427. [PMID: 38844251 DOI: 10.1016/j.jep.2024.118427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dioscoreae Rhizoma, a kind of Chinese yam, is a medicinal and edible plant used in China for strengthening the spleen and stomach. However, there is a lack of modern pharmacology studies regarding its anti-gastric injury activity. AIM OF THE STUDY This study aimed to investigate the phytochemical composition of Chinese yam aqueous extract (CYW) and evaluate its gastroprotective effects against ethanol-induced gastric injury in vitro and in vivo. MATERIALS AND METHODS The active components of CYW were identified using HPLC-QTOF-MS/MS in combination with the GNPS molecular networking and network pharmacology. In vitro studies were performed in the RAW264.7/GES-1 cell coculture system. In vivo study, mice were treated with CYW (0.31, 0.63, and 3.14 g/kg BW, orally) for 14 days, followed by a single oral dose of ethanol (10 mL/kg BW) to induce gastric injury. The biochemical, inflammation and oxidative stress markers were analyzed using commercial kits. Histopathology was used to assess the degree of gastric injury. Gene and protein expressions were studied using RT-qPCR and western blotting, respectively. RESULTS CYW significantly restored the levels of SOD, GPx and CAT, and reduced the MDA content. Further analyses showed that CYW significantly alleviated the gastric oxidative stress by inhibiting the inflammation via decreasing p-NF-κB and p-IκB-α expression levels and inhibiting the generation of IL-6, TNF-α, and IL-1β. At the same time, the fraction remarkably upregulated Bcl-2, downregulated Bax and increased growth factor secretion, thereby prevented gastric mucous cell. Besides, The combination of HPLC-QTOF-MS/MS, GNPS molecular networking analysis, and network pharmacology demonstrated that linoleic acid, 3-acetyl-11-keto-beta-boswellic acid, adenosine, aminocaproic acid, tyramine, DL-tryptophan, cycloleucine, lactulose, melibiose, alpha-beta-trehalose, and sucrose would be the main active compounds of CYW against ethanol-induced gastric injury. CONCLUSION This study showed that CYW is potentially rich source of anti-oxidant and anti-inflammatory bioactive compounds. It showed efficacy against ethanol-induced gastric injury by inhibiting inflammation, oxidative stress, and apoptosis in the stomach. The results of the current work indicate that Dioscoreae Rhizoma could be utilized as a type of natural resource for production of new medicine and functional foods to prevent and/or ameliorate ethanol-induced gastric injury.
Collapse
Affiliation(s)
- Yujun Xie
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Luyao An
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Xiaoyan Wang
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Yajie Ma
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Alamusi Bayoude
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Xinxin Fan
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Boyang Yu
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Renshi Li
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| |
Collapse
|
2
|
Rohith HS, Peddha MS, Halami PM. Probiotic Bacillus licheniformis MCC2514 and Bifidobacterium breve NCIM 5671 Regulates GATA3 and Foxp3 Expression in the Elevated Disease Condition. Probiotics Antimicrob Proteins 2024; 16:894-910. [PMID: 37195508 DOI: 10.1007/s12602-023-10080-8] [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] [Accepted: 04/20/2023] [Indexed: 05/18/2023]
Abstract
TNBS-induced ulcerative colitis was evaluated using Bacillus licheniformis MCC 2514 (B. licheniformis) and Bifidobacterium breve NCIM 5671 (Bf. breve) as immune modulators. The study aims to analyze probiotic efficiency of ulcerative colitis induced by TNBS in Wistar rats. The tumor-like structure was found in the colon of TNBS inflammation-induced rats. Nitric oxide production was inhibited by about 65.2% fed with combination of bacteria and C-reactive protein, and decreased by 12% and 10.8% upon supplementing B. licheniformis and Bf. breve against the TNBS-treated rats, respectively. Liver damage was observed in the TNBS-treated rats; addition of probiotic bacteria reduced SGPT (75.4%) and SGOT (42.5%). On TNBS treatment, the transcriptional factor responsible for Th2 cell immune response (GATA3) was analyzed, and the elevation in gene expression (5.31-fold) was found. The FOXP-3 responsible for T-regulatory cells was expressed about 0.91-fold upon the treatment with a combination of bacteria. The expression of antioxidant genes such as iNOS (1.11-fold), GPx (1.29-fold), and PON1 (1.48-fold) has been increased when compared with that of the TNBS-treated group. The cytokines specific to Th2-driven immune response, such as IL-4, IL-5, and TNF-α, were reduced upon feeding the bacteria. It is observed that the B. licheniformis and Bf. breve used in the study have reduced Th2-driven immune response.
Collapse
Affiliation(s)
- H S Rohith
- Department of Microbiology and Fermentation Technology, CSIR-Central Food Technological Research Institute, Mysuru, 570020, Karnataka, India
| | - Muthukumar Serva Peddha
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysuru, India
| | - Prakash Motiram Halami
- Department of Microbiology and Fermentation Technology, CSIR-Central Food Technological Research Institute, Mysuru, 570020, Karnataka, India.
| |
Collapse
|
3
|
Karime C, Hashash JG, Picco MF, Craver EC, Murray JA, Farraye FA. The Effect of Renin-Angiotensin-Aldosterone System Blocking Agents on the Long-term Disease Course of Patients With Crohn's Disease. J Clin Gastroenterol 2024; 58:454-463. [PMID: 37389966 DOI: 10.1097/mcg.0000000000001881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 05/25/2023] [Indexed: 07/02/2023]
Abstract
BACKGROUND The renin-angiotensin-aldosterone system (RAAS) has been associated with gastrointestinal inflammation and fibrosis, suggesting that RAAS blockade may be beneficial in patients with inflammatory bowel disease. Using retrospective analysis, we aimed to compare the disease course of patients with Crohn's disease (CD) taking two commonly prescribed classes of RAAS-blocking agents. STUDY Patients with CD initiated on an angiotensin-converting enzyme inhibitor (ACEI) or angiotensin receptor blocker (ARB) between 2000 and 2016 were enrolled. Data on clinical, radiologic, and procedural surrogate markers of inflammatory bowel disease were collected in the subsequent 3, 5, and 10 years and compared with matched controls using univariate and multivariate analyses. RESULTS Compared with controls, patients taking ARBs had fewer instances of corticosteroid use (1.06 vs 2.88, P < 0.01) at 10 years. Patients taking ACEIs had an overall worse disease course, with more imaging studies (3.00 vs 1.75, P = 0.03) and endoscopic procedures (2.70 vs 1.78, P = 0.01) at 5 years, and more imaging studies (6.19 vs 3.50, P < 0.01), endoscopic procedures (5.91 vs 3.78, P < 0.01), and gastrointestinal operations (0.59 vs 0.18, P < 0.02) at 10 years. Results remained significant on multivariate analysis, adjusting for CD characteristics and the use of other antihypertensive medications. CONCLUSIONS Our study provides insight into the long-term use of RAAS-blocking agents in patients with CD, suggesting that differences exist among commonly prescribed medication classes. While ACEIs were associated with an overall worse disease course at 5 and 10 years, patients taking ARBs were noted to have fewer instances of corticosteroid use at 10 years. Future large-scale studies are needed to further explore this association.
Collapse
Affiliation(s)
| | - Jana G Hashash
- Department of Gastroenterology and Hepatology, Inflammatory Bowel Disease Center
| | - Michael F Picco
- Department of Gastroenterology and Hepatology, Inflammatory Bowel Disease Center
| | - Emily C Craver
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL
| | - Joseph A Murray
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - Francis A Farraye
- Department of Gastroenterology and Hepatology, Inflammatory Bowel Disease Center
| |
Collapse
|
4
|
Xiang G, Guo S, Qin J, Gao H, Zhang Y, Wang S. Comprehensive insight into the pharmacology, pharmacokinetics, toxicity, detoxification and extraction of hypaconitine from Aconitum plants. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117505. [PMID: 38016573 DOI: 10.1016/j.jep.2023.117505] [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: 09/10/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 11/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Hypaconitine (HA), a diterpenoid alkaloid, mainly derived from Aconitum plants such as Acoitum carmichaeli Debx. And Aconitum nagarum Stapf., has recently piqued significant interest among the scientific community given its multifaceted attributes including anti-inflammatory, anticancer, analgesic, and cardio-protective properties. AIM OF THE STUDY This review presents a comprehensive exploration of the research advancements regarding the traditional uses, pharmacology, pharmacokinetics, toxicity, and toxicity reduction of HA. It aims to provide a thorough understanding of HA's multifaceted properties and its potential applications in various fields. MATERIALS AND METHODS A systematic literature search was conducted using several prominent databases including PubMed, Web of Science, NCBI, and CNKI. The search was performed using specific keywords such as "hypaconitine," "heart failure," "anti-inflammatory," "aconite decoction," "pharmacological," "pharmacokinetics," "toxicity," "detoxification or toxicity reduction," and "extraction and isolation." The inclusion of these keywords ensured a comprehensive exploration of relevant studies and enabled the retrieval of valuable information pertaining to the various aspects of HA. RESULTS Existing research has firmly established that HA possesses a range of pharmacological effects, encompassing anti-cardiac failure, anti-inflammatory, analgesic, and anti-tumor properties. The therapeutic potential of HA is promising, with potential applications in heart failure, ulcerative colitis, cancer, and other diseases. Pharmacokinetic studies suggest that HA exhibits high absorption rates, broad distribution, and rapid metabolism. However, toxic effects of HA on the nerves, heart, and embryos have also been observed. To mitigate these risks, HA needs attenuation before use, with the most common detoxification methods being processing and combined use with other drugs. Extraction methods for HA most commonly include cold maceration, soxhlet reflux extraction, and ultrasonic-assisted extraction. Despite the potential therapeutic benefits of HA, further research is warranted to elucidate its anti-heart failure effects, particularly in vivo, exploring aspects such as in vivo metabolism, distribution, and metabolites. Additionally, the therapeutic effects of HA monomers on inflammation-induced diseases and tumors should be validated in a more diverse range of experimental models, while the mechanisms underlying the therapeutic effects of HA should be investigated in greater detail. CONCLUSION This review serves to emphasize the therapeutic potential of HA and highlights the crucial need to address its toxicity concerns before considering clinical application. Further research is required to comprehensively investigate the pharmacological properties of HA, with particular emphasis on its anti-cardiac failure and anti-inflammatory activities. Such research endeavors have the potential to unveil novel treatment avenues for a broad spectrum of diseases.
Collapse
Affiliation(s)
- Gelin Xiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Sa Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jing Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Huimin Gao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Yi Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Shaohui Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Meishan Hospital of Chengdu University of Traditional Chinese Medicine, Meishan, 620010, China.
| |
Collapse
|
5
|
Zheng X, Zhu Y, Zhao Z, Chu Y, Yang W. The role of amino acid metabolism in inflammatory bowel disease and other inflammatory diseases. Front Immunol 2023; 14:1284133. [PMID: 37936710 PMCID: PMC10626463 DOI: 10.3389/fimmu.2023.1284133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/10/2023] [Indexed: 11/10/2023] Open
Abstract
Inflammation is a characteristic symptom of the occurrence and development of many diseases, which is mainly characterized by the infiltration of inflammatory cells such as macrophages and granulocytes, and the increased release of proinflammatory factors. Subsequently, macrophage differentiates and T cells and other regulated factors exhibit anti-inflammatory function, releasing pro- and anti-inflammatory factors to maintain homeostasis. Although reports define various degrees of metabolic disorders in both the inflamed and non-inflamed parts of inflammatory diseases, little is known about the changes in amino acid metabolism in such conditions. This review aims to summarize amino acid changes and mechanisms involved in the progression of inflammatory bowel disease (IBD) and other inflammatory diseases. Since mesenchymal stem cells (MSCs) and their derived exosomes (MSC-EXO) have been found to show promising effects in the treatment of IBD and other inflammatory diseases,their potential in the modulation of amino acid metabolism in the treatment of inflammation is also discussed.
Collapse
Affiliation(s)
- Xiaowen Zheng
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yi Zhu
- The People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, Jiangsu, China
| | - Zihan Zhao
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ying Chu
- Changzhou Key Laboratory of Molecular Diagnostics and Precision Cancer Medicine, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Wenjing Yang
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
| |
Collapse
|
6
|
He Y, Dong X, Yang Q, Liu H, Zhang S, Chi S, Tan B. Glutamine improves growth and intestinal health in juvenile hybrid groupers fed high-dose glycinin. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109003. [PMID: 37604266 DOI: 10.1016/j.fsi.2023.109003] [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: 04/10/2023] [Revised: 06/19/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023]
Abstract
Glutamine addition can improve immunity and intestinal development in fish. This study examined the protective roles of glutamine on growth suppression and enteritis induced by glycinin in juvenile hybrid groupers (female Epinephelus fuscoguttatus × male Epinephelus lanceolatus). The experiment set four isonitrogenous and isolipidic trial diets: a diet containing 10% glycinin (11S), 10% of 11S diet supplemented with 1% or 2% alanine-glutamine (1% or 2% Ala-Gln), and a diet containing neither 11S nor Ala-Gln (FM). A feeding trial was conducted in hybrid grouper for 8 weeks. Weight gain and specific growth rates in Groups 1% and 2% Ala-Gln were significantly higher than those of the 11S group but were similar to those of the FM group. The intestinal muscular layer thickness, plica height and width of the 2% Ala-Gln group were significantly higher than those of Group 11S. The enterocyte proliferation efficiency of the 11S group was significantly lower compared to other groups. Compared with the 11S group, Groups 1% and 2% Ala-Gln fish had increased intestinal lysozyme activities, complement 3 and immunoglobulin M as well as cathelicidin contents. The mRNA levels of tnf-α, il-1β, ifn-α, and hsp70 genes were more downregulated in Groups 1% and 2% Ala-Gln than in Group 11S. Compared with FM group, fish from the 11S group had significantly lower mRNA levels of myd88, ikkβ, and nf-κb p65 genes. These three values in the 2% Ala-Gln group were significantly lower than those in Group 11S but not significantly different from those of Group FM. The relative abundance of Vibrio in Group 11S was higher than that in Groups FM and 2% Ala-Gln. Intestinal glutamine, glutaminase, glutamic acid, α-ketoglutarate, malate dehydrogenase and ATP contents were higher in Groups 1% and 2% Ala-Gln than in Group 11S. These results suggest that glutamine is a useful feed additive to enhance growth and intestinal immunity, alleviate inflammation, and modulate gut microbiota in hybrid grouper fed high-dose glycinin.
Collapse
Affiliation(s)
- Yuanfa He
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, College of Fisheries, Southwest University, Chongqing, 400715, China; Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China.
| | - Xiaohui Dong
- Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affair, Zhanjiang, 524088, China
| | - Qihui Yang
- Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affair, Zhanjiang, 524088, China
| | - Hongyu Liu
- Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affair, Zhanjiang, 524088, China
| | - Shuang Zhang
- Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affair, Zhanjiang, 524088, China
| | - Shuyan Chi
- Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affair, Zhanjiang, 524088, China.
| | - Beiping Tan
- Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affair, Zhanjiang, 524088, China.
| |
Collapse
|
7
|
Wu X, Li P, Wang W, Xu J, Ai R, Wen Q, Cui B, Zhang F. The Underlying Changes in Serum Metabolic Profiles and Efficacy Prediction in Patients with Extensive Ulcerative Colitis Undergoing Fecal Microbiota Transplantation. Nutrients 2023; 15:3340. [PMID: 37571277 PMCID: PMC10421017 DOI: 10.3390/nu15153340] [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: 06/28/2023] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
(1) Background: Fecal microbiota transplantation (FMT) is an effective treatment for ulcerative colitis (UC). Metabolomic techniques would assist physicians in clinical decision-making. (2) Methods: Patients with active UC undergoing FMT were enrolled in the study and monitored for 3 months. We explored short-term changes in the serum metabolic signatures of groups and the association between baseline serum metabolomic profiles and patient outcomes. (3) Results: Forty-four eligible patients were included in the analysis. Of them, 50.0% and 29.5% achieved clinical response and clinical remission, respectively, 3 months post-FMT. The top two significantly altered pathways in the response group were vitamin B6 metabolism and aminoacyl-tRNA biosynthesis. Both the remission and response groups exhibited an altered and enriched pathway for the biosynthesis of primary bile acid. We found a clear separation between the remission and non-remission groups at baseline, characterized by the higher levels of glycerophosphocholines, glycerophospholipids, and glycerophosphoethanolamines in the remission group. A random forest (RF) classifier was constructed with 20 metabolic markers selected by the Boruta method to predict clinical remission 3 months post-FMT, with an area under the curve of 0.963. (4) Conclusions: FMT effectively induced a response in patients with active UC, with metabolites partially improving post-FMT in the responsive group. A promising role of serum metabolites in the non-invasive prediction of FMT efficacy for UC demonstrated the value of metabolome-informed FMT in managing UC.
Collapse
Affiliation(s)
- Xia Wu
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| | - Pan Li
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| | - Weihong Wang
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| | - Jie Xu
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| | - Rujun Ai
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| | - Quan Wen
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| | - Bota Cui
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| | - Faming Zhang
- Department of Microbiota Medicine, Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China; (X.W.); (P.L.); (W.W.); (J.X.); (R.A.); (Q.W.); (B.C.)
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing 210011, China
| |
Collapse
|
8
|
Leaky Gut and the Ingredients That Help Treat It: A Review. Molecules 2023; 28:molecules28020619. [PMID: 36677677 PMCID: PMC9862683 DOI: 10.3390/molecules28020619] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/31/2022] [Accepted: 01/01/2023] [Indexed: 01/11/2023] Open
Abstract
The human body is in daily contact with potentially toxic and infectious substances in the gastrointestinal tract (GIT). The GIT has the most significant load of antigens. The GIT can protect the intestinal integrity by allowing the passage of beneficial agents and blocking the path of harmful substances. Under normal conditions, a healthy intestinal barrier prevents toxic elements from entering the blood stream. However, factors such as stress, an unhealthy diet, excessive alcohol, antibiotics, and drug consumption can compromise the composition of the intestinal microbiota and the homeostasis of the intestinal barrier function of the intestine, leading to increased intestinal permeability. Intestinal hyperpermeability can allow the entry of harmful agents through the junctions of the intestinal epithelium, which pass into the bloodstream and affect various organs and systems. Thus, leaky gut syndrome and intestinal barrier dysfunction are associated with intestinal diseases, such as inflammatory bowel disease and irritable bowel syndrome, as well as extra-intestinal diseases, including heart diseases, obesity, type 1 diabetes mellitus, and celiac disease. Given the relationship between intestinal permeability and numerous conditions, it is convenient to seek an excellent strategy to avoid or reduce the increase in intestinal permeability. The impact of dietary nutrients on barrier function can be crucial for designing new strategies for patients with the pathogenesis of leaky gut-related diseases associated with epithelial barrier dysfunctions. In this review article, the role of functional ingredients is suggested as mediators of leaky gut-related disorders.
Collapse
|
9
|
Moura AV, de Oliveira DC, Silva AAR, da Rosa JR, Garcia PHD, Sanches PHG, Garza KY, Mendes FMM, Lambert M, Gutierrez JM, Granado NM, dos Santos AC, de Lima IL, Negrini LDDO, Antonio MA, Eberlin MN, Eberlin LS, Porcari AM. Urine Metabolites Enable Fast Detection of COVID-19 Using Mass Spectrometry. Metabolites 2022; 12:1056. [PMID: 36355139 PMCID: PMC9697918 DOI: 10.3390/metabo12111056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/19/2022] [Accepted: 10/27/2022] [Indexed: 08/27/2023] Open
Abstract
The COVID-19 pandemic boosted the development of diagnostic tests to meet patient needs and provide accurate, sensitive, and fast disease detection. Despite rapid advancements, limitations related to turnaround time, varying performance metrics due to different sampling sites, illness duration, co-infections, and the need for particular reagents still exist. As an alternative diagnostic test, we present urine analysis through flow-injection-tandem mass spectrometry (FIA-MS/MS) as a powerful approach for COVID-19 diagnosis, targeting the detection of amino acids and acylcarnitines. We adapted a method that is widely used for newborn screening tests on dried blood for urine samples in order to detect metabolites related to COVID-19 infection. We analyzed samples from 246 volunteers with diagnostic confirmation via PCR. Urine samples were self-collected, diluted, and analyzed with a run time of 4 min. A Lasso statistical classifier was built using 75/25% data for training/validation sets and achieved high diagnostic performances: 97/90% sensitivity, 95/100% specificity, and 95/97.2% accuracy. Additionally, we predicted on two withheld sets composed of suspected hospitalized/symptomatic COVID-19-PCR negative patients and patients out of the optimal time-frame collection for PCR diagnosis, with promising results. Altogether, we show that the benchmarked FIA-MS/MS method is promising for COVID-19 screening and diagnosis, and is also potentially useful after the peak viral load has passed.
Collapse
Affiliation(s)
- Alexandre Varao Moura
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Danilo Cardoso de Oliveira
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Alex Ap. R. Silva
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Jonas Ribeiro da Rosa
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Pedro Henrique Dias Garcia
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Pedro Henrique Godoy Sanches
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Kyana Y. Garza
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Flavio Marcio Macedo Mendes
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Mayara Lambert
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Junier Marrero Gutierrez
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Nicole Marino Granado
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| | - Alicia Camacho dos Santos
- Department of Material Engineering and Nanotechnology, Mackenzie Presbyterian University, São Paulo 01302-907, SP, Brazil
| | - Iasmim Lopes de Lima
- Department of Material Engineering and Nanotechnology, Mackenzie Presbyterian University, São Paulo 01302-907, SP, Brazil
| | | | - Marcia Aparecida Antonio
- Integrated Unit of Pharmacology and Gastroenterology, UNIFAG, Bragança Paulista 12916-900, SP, Brazil
| | - Marcos N. Eberlin
- Department of Material Engineering and Nanotechnology, Mackenzie Presbyterian University, São Paulo 01302-907, SP, Brazil
| | - Livia S. Eberlin
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
- Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Andreia M. Porcari
- MSLife Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista 12916-900, SP, Brazil
| |
Collapse
|
10
|
Wu Q, Wang C, Zhu L, Wang S, Zhao L, Xing Z, Zhang B, Jia W, Ma Y, Wang Y. Effects of glutamine on growth performance and immune function of high-concentrate fattening Hu lambs. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
11
|
Zhang S, Xu M, Sun X, Shi H, Zhu J. Green tea extract alters gut microbiota and their metabolism of adults with metabolic syndrome in a host-free human colonic model. Food Res Int 2022; 160:111762. [PMID: 36076430 PMCID: PMC10324538 DOI: 10.1016/j.foodres.2022.111762] [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: 05/22/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Metabolic syndrome (MetS) is a common metatoblic disorder that leads to various adverse health outcomes such as diabetes and cardiovascular diseases (CVDs). Recent studies suggested that MetS-associated gut dysbiosis could exacerbate MetS related diseases. Green tea, a popular beverage rich in polyphenols, has showed antioxidant and anti-inflammatory effects in treating MetS through gut modulation. OBJECTIVES This study aimed to understand the impact of green tea extract (GTE) on the composition and metabolism of gut microbiota from people with MetS. METHODS We utilized an in-vitro human colonic model (HCM) to specifically investigate the host-free interactions between GTE and gut microbiota of MetS adults. Fresh fecal samples donated by three adults with MetS were used as gut microbe inoculum in our HCM system. 16S ribosomal RNA sequencing and liquid-chromatography mass spectrometry (LC/MS) combined with QIIME 2, Compound Discoverer 3.1 and MetaboAnalyst 4.0 based data analyses were performed to show the regulating effects of GTE treatment on gut microbial composition and their metabolism. RESULTS Our data suggested that GTE treatment in HCM system modified composition of MetS gut microbiota at genus level and led to significant microbiota metabolic profile change. Bioinformatics analysis showed relative abundance of Escherichia and Klebsiella was commonly increased while Bacteroides, Citrobacter, and Clostridium were significantly reduced. All free fatty acids detected were significantly increased in different colon sections. Lipopolysaccharide biosynthesis, methane metabolism, pentose phosphate pathway, purine metabolism, and tyrosine metabolism were regulated by GTE in MetS gut microbiota. In addition, we identified significant associations between altered microbes and microbial metabolites. CONCLUSIONS Overall, our study revealed the impact of GTE treatment on gut microbiota composition and metabolism changes in MetS microbiota in vitro, which may provide information for further mechanistic investigation of GTE in modulating gut dysbiosis in MetS.
Collapse
Affiliation(s)
- Shiqi Zhang
- Human Nutrition Program, Department of Human Sciences, The Ohio State University, Columbus, OH 43210, USA
| | - Mengyang Xu
- Department of Biology, Miami University, Oxford, OH 45056, USA
| | - Xiaowei Sun
- Human Nutrition Program, Department of Human Sciences, The Ohio State University, Columbus, OH 43210, USA
| | - Haifei Shi
- Department of Biology, Miami University, Oxford, OH 45056, USA
| | - Jiangjiang Zhu
- Human Nutrition Program, Department of Human Sciences, The Ohio State University, Columbus, OH 43210, USA; James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA.
| |
Collapse
|
12
|
Khater SI, Lotfy MM, Alandiyjany MN, Alqahtani LS, Zaglool AW, Althobaiti F, Ismail TA, Soliman MM, Saad S, Ibrahim D. Therapeutic Potential of Quercetin Loaded Nanoparticles: Novel Insights in Alleviating Colitis in an Experimental DSS Induced Colitis Model. Biomedicines 2022; 10:biomedicines10071654. [PMID: 35884960 PMCID: PMC9313390 DOI: 10.3390/biomedicines10071654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress is considered the main etiologic factor involved in inflammatory bowel disease (IBD). Integration of nanocarriers for natural therapeutic agents with antioxidant and anti-inflammatory potential is a novel promising candidate for curing IBD. Herein, the colonic antioxidant and anti-inflammatory effects of different concentrations of quercetin nanoparticles (QT-NPs) were evaluated using a dextran sulfate sodium (DSS)-induced colitis model. Following colitis induction, the efficacy and mechanistic actions of QT-NPs were evaluated by assessing lesion severity, molecular aids controlling oxidative stress and inflammatory response, and histopathological and immunohistochemistry examination of colonic tissues. Administration of QT-NPs, especially at higher concentrations, significantly reduced the disease activity index and values of fecal calprotectin marker compared to the colitic group. Colonic oxidant/antioxidant status (ROS, H2O2, MDA, SOD, CAT, GPX and TAC) was restored after treatment with higher concentrations of QT-NPs. Moreover, QT-NPs at levels of 20 mg/kg and, to a lesser extent, 15 mg/kg reduced Nrf2 and HO-1 gene expression, which was in line with decreasing the expression of iNOS and COX2 in colonic tissues. Higher concentrations of QT-NPs greatly downregulated pro-inflammatory cytokines; upregulated genes encoding occludin, MUC-2 and JAM; and restored the healthy architectures of colonic tissues. Taken together, these data suggest that QT-NPs could be a promising alternative to current IBD treatments.
Collapse
Affiliation(s)
- Safaa I. Khater
- Department of Biochemistry, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; (S.I.K.); (S.S.)
| | - Marwa M. Lotfy
- Faculty of Pharmacy, Zagazig University, Zagazig 44511, Egypt;
| | - Maher N. Alandiyjany
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia;
- Quality and Development Affair, Batterjee Medical College, Jeddah 21442, Saudi Arabia
| | - Leena S. Alqahtani
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah 80203, Saudi Arabia;
| | - Asmaa W. Zaglool
- Department of Animal Wealth Development, Genetic and Genetic Engineering, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt;
| | - Fayez Althobaiti
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Tamer Ahmed Ismail
- Department of Clinical Laboratory Sciences, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (T.A.I.); (M.M.S.)
| | - Mohamed Mohamed Soliman
- Department of Clinical Laboratory Sciences, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (T.A.I.); (M.M.S.)
| | - Saydat Saad
- Department of Biochemistry, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; (S.I.K.); (S.S.)
| | - Doaa Ibrahim
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
- Correspondence:
| |
Collapse
|
13
|
L-glutamine for sickle cell disease: more than reducing redox. Ann Hematol 2022; 101:1645-1654. [PMID: 35568758 DOI: 10.1007/s00277-022-04867-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/06/2022] [Indexed: 12/15/2022]
Abstract
Oxidative stress is a major contributor to the pathophysiology of sickle cell disease (SCD) including hemolysis and vaso-occlusive crisis (VOC). L-glutamine is a conditionally essential amino acid with important roles, including the synthesis of antioxidants, such as reduced glutathione and the cofactors NAD(H) and NADP(H), as well as nitric oxide. Given the increased levels of oxidative stress and lower (NADH):(NAD + + NADH) ratio in sickle erythrocytes that adversely affects the blood rheology compared to normal red blood cells, L-glutamine was investigated for its therapeutic potential to reduce VOC. While L-glutamine was approved by the United States (US) Food and Drug Administration to treat SCD, its impact on the redox environment in sickle erythrocytes is not fully understood. The mechanism through which L-glutamine reduces VOC in SCD is also not clear. In this paper, we will summarize the results of the Phase 3 study that led to the approval of L-glutamine for treating SCD and discuss its assumed mechanisms of action. We will examine the role of L-glutamine in health and propose how the extra-erythrocytic functions of L-glutamine might contribute to its beneficial effects in SCD. Further research into the role of L-glutamine on extra-erythrocyte functions might help the development of an improved formulation with more efficacy.
Collapse
|
14
|
Khalifa A, Sheikh A, Ibrahim HIM. Bacillus amyloliquefaciens Enriched Camel Milk Attenuated Colitis Symptoms in Mice Model. Nutrients 2022; 14:nu14091967. [PMID: 35565934 PMCID: PMC9101272 DOI: 10.3390/nu14091967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/30/2022] [Accepted: 05/04/2022] [Indexed: 12/22/2022] Open
Abstract
Fermented camel’s milk has various health beneficial prebiotics and probiotics. This study aimed to evaluate the preventive efficacy of Bacillus amyloliquefaciens enriched camel milk (BEY) in 2-, 4- and 6-Trinitrobenzenesulfonic acid (TNBS)-induced colitis mice models. To this end, the immune modulatory effects of Bacillus amyloliquefaciens (BA) on TNF-α challenged HT29 colon cells were estimated using the cell proliferation and cytokines ELISA method. BEY was prepared using the incubation method and nutritional value was quantified by comparing it to commercial yogurt. Furthermore, TNBS-induced colitis was established and the level of disease index, pathological scores, and inflammatory markers of BEY-treated mice using macroscopic and microscopic examinations, qPCR and immunoblot were investigated. The results demonstrate that BA is non-toxic to HT29 colon cells and balanced the inflammatory cytokines. BEY reduced the colitis disease index, and improved the body weight and colon length of the TNBS-induced mice. Additionally, Myeloperoxidase (MPO) and pro-inflammatory cytokines (IL1β, IL6, IL8 and TNF-α) were attenuated by BEY treatment. Moreover, the inflammatory progress mRNA and protein markers nuclear factor kappa B (NFκB), phosphatase and tensin homolog (PTEN), proliferating cell nuclear antigen (PCNA), cyclooxygenase-2 (COX-2) and occludin were significantly down-regulated by BEY treatment. Interestingly, significant suppression of PCNA was observed in colonic tissues using the immunohistochemical examination. Treatment with BEY increased the epigenetic (microRNA217) interactions with PCNA. In conclusion, the BEY clearly alleviated the colitis symptoms and in the future could be used to formulate a probiotic-based diet for the host gut health and control the inflammatory bowel syndrome in mammals.
Collapse
Affiliation(s)
- Ashraf Khalifa
- Biological Science Department, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia;
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Abdullah Sheikh
- Camel Research Center, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia;
| | - Hairul Islam Mohamed Ibrahim
- Biological Science Department, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia;
- Molecular Biology Division, Pondicherry Centre for Biological Sciences and Educational Trust, Kottakuppam 605104, India
- Correspondence: ; Tel.: +966-13-589-9540
| |
Collapse
|
15
|
Cortes GM, Marcialis MA, Bardanzellu F, Corrias A, Fanos V, Mussap M. Inflammatory Bowel Disease and COVID-19: How Microbiomics and Metabolomics Depict Two Sides of the Same Coin. Front Microbiol 2022; 13:856165. [PMID: 35391730 PMCID: PMC8981987 DOI: 10.3389/fmicb.2022.856165] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/21/2022] [Indexed: 12/11/2022] Open
Abstract
The integrity of the gastrointestinal tract structure and function is seriously compromised by two pathological conditions sharing, at least in part, several pathogenetic mechanisms: inflammatory bowel diseases (IBD) and coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. IBD and COVID-19 are marked by gut inflammation, intestinal barrier breakdown, resulting in mucosal hyperpermeability, gut bacterial overgrowth, and dysbiosis together with perturbations in microbial and human metabolic pathways originating changes in the blood and fecal metabolome. This review compared the most relevant metabolic and microbial alterations reported from the literature in patients with IBD with those in patients with COVID-19. In both diseases, gut dysbiosis is marked by the prevalence of pro-inflammatory bacterial species and the shortfall of anti-inflammatory species; most studies reported the decrease in Firmicutes, with a specific decrease in obligately anaerobic producers short-chain fatty acids (SCFAs), such as Faecalibacterium prausnitzii. In addition, Escherichia coli overgrowth has been observed in IBD and COVID-19, while Akkermansia muciniphila is depleted in IBD and overexpressed in COVID-19. In patients with COVID-19, gut dysbiosis continues after the clearance of the viral RNA from the upper respiratory tract and the resolution of clinical symptoms. Finally, we presented and discussed the impact of gut dysbiosis, inflammation, oxidative stress, and increased energy demand on metabolic pathways involving key metabolites, such as tryptophan, phenylalanine, histidine, glutamine, succinate, citrate, and lipids.
Collapse
Affiliation(s)
- Gian Mario Cortes
- Neonatal Intensive Care Unit, Department of Surgical Sciences, University of Cagliari, Monserrato, Italy
| | - Maria Antonietta Marcialis
- Neonatal Intensive Care Unit, Department of Surgical Sciences, University of Cagliari, Monserrato, Italy
| | - Flaminia Bardanzellu
- Neonatal Intensive Care Unit, Department of Surgical Sciences, University of Cagliari, Monserrato, Italy
| | - Angelica Corrias
- Neonatal Intensive Care Unit, Department of Surgical Sciences, University of Cagliari, Monserrato, Italy
| | - Vassilios Fanos
- Neonatal Intensive Care Unit, Department of Surgical Sciences, University of Cagliari, Monserrato, Italy
| | - Michele Mussap
- Laboratory Medicine, Department of Surgical Sciences, School of Medicine, University of Cagliari, Monserrato, Italy
| |
Collapse
|
16
|
Probiotics-loaded nanoparticles attenuated colon inflammation, oxidative stress, and apoptosis in colitis. Sci Rep 2022; 12:5116. [PMID: 35332200 PMCID: PMC8948303 DOI: 10.1038/s41598-022-08915-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 03/11/2022] [Indexed: 12/19/2022] Open
Abstract
Promising therapy is needed for treating inflammatory bowel diseases (IBD) to overcome current treatment that inefficient and associated with unnecessary health risks. Recently, the concept of incorporating natural products into nanocarriers has been intended as a promising therapy for treating IBD via modulating their stability and bioavailability. Thus, we aimed to explore the potential alleviating effects of dietary nano-supplement combined with bacillus strains (Bacillus amyloliquefaciens; BANPs) in colitis model. Rats were orally gavaged by 5% DSS and the efficacy and mechanistic actions of BANPs were evaluated by assessing the severity of clinical signs and inflammatory and apoptosis response, histopathological and immunohistochemistry examination in colonic tissues. The severity of clinical signs was successfully alleviated and fecal Lcn-2 levels, an important colitic marker, were decreased in BANPs then free BA treated groups. In contrast, inflammatory markers overexpression IL-6, IL-1β, TNFα, COX-2, and iNOS in the colitic group were reduced more prominently in BANPs treated group, unlike free BA. The amelioration of BANPs to colon injury was also correlated with oxidative stress suppression along with restoring total antioxidant capacity. Interestingly, BANPs treatment modulated apoptotic markers as proved by downregulation of cytochrome c, and caspase-3 and upregulation of Bcl-2 and Bax than free BA. The severity of the histopathological alterations in the colon was greatly reduced in BANPs than free BA groups. Remarkably, over-expression of ki67 and IL-6 in colonic tissues were suppressed in BANPs group. These findings together highlighted the beneficial efficacy of BANPs in IBD treatment which are evidenced by colonic inflammation alleviation. Taken together, these results recommend that BANPs is a promising agent that encourages its possible therapeutic role in colitis treatment.
Collapse
|
17
|
Gu M, Pan S, Deng W, Li Q, Qi Z, Chen C, Bai N. Effects of glutamine on the IKK/IκB/NF-кB system in the enterocytes of turbot Scophthalmus maximus L. stimulated with soya-saponins. FISH & SHELLFISH IMMUNOLOGY 2021; 119:373-378. [PMID: 34688862 DOI: 10.1016/j.fsi.2021.10.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/17/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Soya-saponins represent key anti-nutritional factors that contribute to soybean meal-induced enteritis, and glutamine is an effective fish intestine protectant that combats the negative effects of soya-saponins. Nuclear transcription factor-kappa B (NF-кB) systems are involved in the interactions between soya-saponins and glutamine, and the goal of the present work was to clarify the related molecular mechanisms used by the NF-кB kinase (IKK)/inhibitor of NF-κB (IκB)/NF-кB system. Primary cultured turbot (Scophthalmus maximus L.) intestinal epithelial cells were concurrently administrated with 1 mg/mL of soya-saponins and several levels of glutamine (0, 0.5, 1.0 and 2.0 mM) for 12 h and then subjected to real-time PCR and Western blot assays. Compared with cells treated with soya-saponins alone, glutamine significantly decreased the expression of interleukin-1 beta, interleukin 8 and tumor necrosis factor α genes, significantly reduced nuclear and cytosolic NF-κB p65 abundance levels in a dose-dependent manner, increased the IκBα protein level but decreased its phosphorylation, and down-regulated the IKKα/β and phosphorylated IKKα/β levels. In conclusion, this in vitro work confirmed that glutamine attenuated soya-saponin-induced inflammatory responses in turbot intestines. Moreover, it identified molecular pathways in which glutamine first decreased the p65 level and then prevented its nuclear translocation. In addition, glutamine reduced IκBα phosphorylation and maintained its level. Finally, glutamine decreased IKK expression and phosphorylation.
Collapse
Affiliation(s)
- Min Gu
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Shihui Pan
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Wanzhen Deng
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Qing Li
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Zezheng Qi
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Chuwen Chen
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Nan Bai
- Marine College, Shandong University, Weihai, Shandong, 264209, China.
| |
Collapse
|
18
|
Free amino acid composition of saliva in patients with healthy periodontium and periodontitis. Clin Oral Investig 2021; 25:4175-4183. [PMID: 33977387 DOI: 10.1007/s00784-021-03977-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/04/2021] [Indexed: 12/23/2022]
Abstract
OBJECTIVES To identify and compare the free amino acids in the saliva of periodontitis patients and healthy individuals and to assess their levels in different periodontal disease types. MATERIALS AND METHODS There were three groups: healthy individuals (control (C); n = 20), Stage III Grade B generalized periodontitis (GP-B; n = 20), and Stage III Grade C generalized periodontitis (GP-C; n = 20). Clinical periodontal parameters were measured. Amino acid analysis of the saliva was accomplished by liquid chromatography-mass spectrometry (LC MS/MS), taking the mean concentration. RESULTS Citrulline and carnosine concentrations were significantly higher in patients with periodontitis than in the control group (p < 0.017). Methionine, glutamic acid, and arginine showed significantly higher concentrations in GP-C, whereas proline and tryptophan showed higher concentrations in the GP-B group (p < 0.017). There was a significant correlation between methionine, citrulline, arginine, and carnosine and clinical periodontal parameters. CONCLUSIONS Our results demonstrate that periodontal status and disease type can result in variations in salivary amino acid (AA) content in correlation with clinical inflammatory signs. The significant correlation of methionine, citrulline, carnosine, and arginine with clinical parameters, regardless of systemic status, suggests that the levels of different salivary free AAs play roles in periodontitis. CLINICAL RELEVANCE Salivary free AAs may be suggested as a potential diagnostic compound in patients with periodontitis. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov NCT04642716.
Collapse
|
19
|
Dietary Bioactive Peptide Alanyl-Glutamine Attenuates Dextran Sodium Sulfate-Induced Colitis by Modulating Gut Microbiota. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5543003. [PMID: 34046146 PMCID: PMC8128544 DOI: 10.1155/2021/5543003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/06/2021] [Accepted: 04/23/2021] [Indexed: 12/14/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic intestinal disorder threatening human health. Di-peptide alanyl-glutamine (Ala-Gln) has various beneficial effects on gut health. However, its role and functional mechanism in treating IBD are still not clear. Therefore, the protective effects of Ala-Gln and glutamine (Gln) on dextran sulfate sodium- (DSS-) induced colitic mice were investigated in this study. The results showed that oral supplementation of Ala-Gln or Gln significantly attenuated the colitis symptoms in mice, including body weight loss, colon length, disease activity index, histological scores, and tissue apoptosis. The concentrations of interleukin- (IL-) 1β, IL-6, tumor necrosis factor-α, and myeloperoxidase were significantly decreased, while the concentrations of immunoglobulins (IgA, IgG, and IgM) and superoxide dismutase were significantly increased by Ala-Gln or Gln supplementation. The expression of occludin and peptide transporter 1 (PepT1) was significantly increased by Ala-Gln or Gln. Interestingly, Ala-Gln had better beneficial effects than Gln in alleviating colitis. In addition, 16S rDNA sequencing showed that the DSS-induced shifts of the microbiome (community diversity, evenness, richness, and composition) in the mouse colon were restored by Gln and Ala-Gln, including Lactobacillus, Bacteroides_acidifaciens, Bacteroidales, Firmicutes, Clostridia, Helicobacter, and Bacteroides. Correspondingly, the functions of the microflora metabolism pathways were also rescued by Ala-Gln, including fatty acid metabolism, membrane transporters, infectious diseases, and immune system. In conclusion, the results revealed that Ala-Gln can prevent colitis through PepT1, enhancing the intestinal barrier and modulating gut microbiota and microflora metabolites.
Collapse
|
20
|
Chen G, Liu Y, Xu Y, Zhang M, Guo S, Zhang G. Isoimperatorin exerts anti-inflammatory activity by targeting the LPS-TLR4/MD-2-NF-κB pathway. EUR J INFLAMM 2021. [DOI: 10.1177/20587392211000573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Isoimperatorin (QHS) is a phytoconstituent found in the methanolic extracts obtained from the roots of Angelica dahurica, which contains anti-inflammatory, anti-bacterial, analgesic, anti-tumor, and vasodilatory activities. QHS possesses potent antagonistic activity against lipopolysaccharide (LPS)-induced inflammation; however, the mechanism of action remains unclear. In this study, we investigated the anti-inflammatory effect of QHS and explored the underlying mechanisms. The QHS was purchased from Jiangsu Yongjian Pharmaceutical Co., Ltd. (Jiangsu, China). We performed MTT assay, real-time PCR, ELISA, and western blotting experiments to assess the anti-inflammatory activity and the possible mechanism of QHS in vitro. Molecular docking was performed to study the binding of QHS and myeloid differentiation protein-2 (MD-2) and elucidate the possible anti-inflammatory mechanism. QHS had no significant effect on cell viability. Moreover, pre-treatment with QHS significantly decreased the release of inflammatory cytokines and mediators including NO, TNF-α, IL-6, and IL-1β. In addition, real-time PCR showed that QHS decreased the mRNA expressions of iNOS, COX-2 TNF-α, IL-6, and IL-1β. Western blotting indicated that QHS could inhibit the expression of the proteins associated with the LPS-TLR4/MD-2-NF-κB signaling pathway. Lastly, molecular docking revealed a possible binding mechanism between QHS and MD-2. QHS exhibited anti-inflammatory activity when combined with MD-2, regulating the LPS-TLR4/MD-2-NF-κB signaling pathway, and inhibiting the release and expression of inflammatory cytokines and mediators. Furthermore, QHS can be used as a potential TLR4 antagonist, which blocks MD-2 binding, for treating inflammatory responses induced by LPS.
Collapse
Affiliation(s)
- Guirong Chen
- 967th Hospital of the Joint Logistics Support Force of the Chinese People’s Liberation Army, Dalian, Liaoning, China
- Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, China
| | - Yunong Liu
- Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, China
| | - Yubin Xu
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Mingbo Zhang
- Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, China
| | - Song Guo
- Department of Computer Application, Shenyang Sport University, Shenyang, Liaoning, China
| | - Gang Zhang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| |
Collapse
|
21
|
Whitfield-Cargile CM, Coleman MC, Cohen ND, Chamoun-Emanuelli AM, DeSolis CN, Tetrault T, Sowinski R, Bradbery A, Much M. Effects of phenylbutazone alone or in combination with a nutritional therapeutic on gastric ulcers, intestinal permeability, and fecal microbiota in horses. J Vet Intern Med 2021; 35:1121-1130. [PMID: 33656183 PMCID: PMC7995434 DOI: 10.1111/jvim.16093] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 02/12/2021] [Accepted: 02/19/2021] [Indexed: 12/15/2022] Open
Abstract
Background Gastrointestinal (GI) injury and dysbiosis are adverse events associated with nonsteroidal anti‐inflammatory drug (NSAID) use in horses. Phenylbutazone has been shown to alter GI barrier function both in vitro and ex vivo, but its effects on barrier function have not been assessed in vivo. In addition, the ability of nutritional therapeutics to prevent these changes is not known. Objective Our objectives were to determine whether (a) phenylbutazone affected barrier function in vivo and (b) if phenylbutazone‐induced GI injury could be ameliorated by the use of a nutritional therapeutic. Animals Thirty healthy horses were randomly assigned to 3 groups (n = 10 per group): control, phenylbutazone, or phenylbutazone plus nutritional therapeutic. Methods This study was conducted as a blinded, randomized block design. All horses were managed identically throughout the study period. Samples were collected throughout the study period to monitor fecal microbiota changes and gastric ulcers before and after treatment. Quantification of the bacterial 16S rRNA gene in blood was used as a marker of intestinal permeability. Results Phenylbutazone increased amounts of bacterial 16S rDNA in circulation 3.02‐fold (95% confidence interval [CI], 0.1.89‐4.17), increased gastric ulceration score by a mean of 1.1 grade (P = .02), and induced specific changes in the microbiota, including loss of Pseudobutyrivibrio of family Lachnospiraceae. These changes were attenuated by nutritional treatment. Conclusions and Clinical Importance Collectively, these findings suggest that phenylbutazone induces GI injury, including impaired barrier function, and that nutritional treatment could attenuate these changes.
Collapse
Affiliation(s)
- Canaan M Whitfield-Cargile
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Michelle C Coleman
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Noah D Cohen
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Ana M Chamoun-Emanuelli
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Cristobal Navas DeSolis
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Taylor Tetrault
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Ryan Sowinski
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Amanda Bradbery
- Department of Animal Science, College of Agriculture & Life Sciences Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Mattea Much
- Department of Animal Science, College of Agriculture & Life Sciences Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| |
Collapse
|
22
|
Colares JR, Schemitt EG, Hartmann RM, Moura RM, Morgan-Martins MI, Fillmann HS, Fillmann L, Marroni NP. Effect of lecithin on oxidative stress in an experimental model of rats colitis induced by acetic acid. JOURNAL OF COLOPROCTOLOGY 2021. [DOI: 10.1016/j.jcol.2016.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AbstractUlcerative colitis (UC) is an inflammatory disease that affects the bowels. Reactive oxygen species (ROS) are involved in the progress of UC.
Objective Evaluate the antioxidant effect of lecithin in an experimental model of acute UC induced by administration of acetic acid (AA) in rats.
Methods Lecithin (0.5 mL/kg/day) administered orally 2 days before and after induction of colitis with 4% AA in a volume of 4 mL. Twenty-five male Wistar rats were divided in 5 groups: control (CO); control + lecithin (CO + LE); colitis (CL); colitis + lecithin (CL + LE); lecithin + colitis (LE + CL). Anal sphincter pressure, LPO (TBARS), and antioxidant activity of enzymes superoxide dismutase (SOD) and catalase (CAT) were measured, and a histological analysis with H&E was performed.
Results and discussion Anal sphincter pressure was significantly smaller in the CO group, lecithin treatment increased it in pre- and post-treated groups. LPO and SOD activity were increased in the CO group and decreased in the lecithin-treated groups. CAT activity was increased in CO group and decreased in lecithin groups. The histological analysis showed damage to the bowels with destruction of crypts, edema, and inflammatory infiltrate. Use of lecithin preserved the crypts and decreased the edema.
Conclusion Ulcerative colitis increased lipid peroxidation, and the use of lecithin was effective reducing damage to the bowels in the model of experimental colitis.
Collapse
Affiliation(s)
- Josieli Raskopf Colares
- Bio Health, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
- Laboratory of Hepatology and Experimental Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Elizângela Gonçalves Schemitt
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
- Laboratory of Hepatology and Experimental Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Medical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Renata Minuzzo Hartmann
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
- Laboratory of Hepatology and Experimental Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Medical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Rosa Maria Moura
- Applied Toxicology, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
| | - Maria Isabel Morgan-Martins
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
- Laboratory of Hepatology and Experimental Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Henrique Sarubbi Fillmann
- Laboratory of Hepatology and Experimental Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Lúcio Fillmann
- Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Norma Possa Marroni
- Bio Health, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
- Laboratory of Oxidative Stress and Antioxidants, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
- Laboratory of Hepatology and Experimental Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Medical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Applied Toxicology, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
| |
Collapse
|
23
|
Moura RM, Hartmann RM, Licks F, Schemitt EG, Colares JR, do Couto Soares M, Fillmann LS, Fillmann HS, Marroni NP. Antioxidant effect of mesalazine in the experimental colitis model induced by acetic acid. JOURNAL OF COLOPROCTOLOGY 2021. [DOI: 10.1016/j.jcol.2016.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Abstract
Introduction Inflammatory bowel disease (IBD) is characterized by a chronic inflammation of the gastrointestinal tract, without specific cause or pathogen.
Objective The effect of mesalazine in a colitis model induced by acetic acid (AA) was evaluated.
Methods We used 40 Wistar rats, ±350 g, divided into 4 groups: control (CO); control + mesalazine (CO + M); colitis (CL) and colitis + M (CL + M) at 24 and 48 h of treatment. The animals received the substances by an intracolonic enema of AA 4% and treatment with mesalazine PO 20 mg/kg after colitis induction.
Results Mesalazine reduced tissue damage in the gut, normalized sphincter anal pressure levels and decreased lipid peroxidation, metabolites of nitric oxide and iNOS and NF-kB expression in the treated groups in both treatment time points (24 and 48 h), as well as the activity of antioxidant enzymes.
Conclusion Mesalazine was effective in reducing tissue damage and oxidative and inflammatory damage, restored antioxidant capacity and increased anal sphincter pressure levels, possibly due to its antioxidant effect.
Collapse
Affiliation(s)
- Rosa Maria Moura
- Universidade Luterana do Brasil (ULBRA), Laboratório de Estresse Oxidativo e Antioxidantes, Canoas, RS, Brazil
| | - Renata Minuzzo Hartmann
- Universidade Federal do Rio Grande do Sul (UFRGS), Pós-graduação em Ciências Médicas, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Hospital de Clínicas de Porto Alegre (HCPA), Laboratório Experimental de Hepatologia e Gastroenterologia, Porto Alegre, RS, Brazil
| | - Francielli Licks
- Universidade Luterana do Brasil (ULBRA), Laboratório de Estresse Oxidativo e Antioxidantes, Canoas, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Hospital de Clínicas de Porto Alegre (HCPA), Laboratório Experimental de Hepatologia e Gastroenterologia, Porto Alegre, RS, Brazil
| | - Elizângela Gonçalves Schemitt
- Universidade Luterana do Brasil (ULBRA), Laboratório de Estresse Oxidativo e Antioxidantes, Canoas, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Pós-graduação em Ciências Médicas, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Hospital de Clínicas de Porto Alegre (HCPA), Laboratório Experimental de Hepatologia e Gastroenterologia, Porto Alegre, RS, Brazil
| | - Josieli Raskopf Colares
- Universidade Luterana do Brasil (ULBRA), Laboratório de Estresse Oxidativo e Antioxidantes, Canoas, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Hospital de Clínicas de Porto Alegre (HCPA), Laboratório Experimental de Hepatologia e Gastroenterologia, Porto Alegre, RS, Brazil
| | - Mariana do Couto Soares
- Universidade Luterana do Brasil (ULBRA), Laboratório de Estresse Oxidativo e Antioxidantes, Canoas, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Hospital de Clínicas de Porto Alegre (HCPA), Laboratório Experimental de Hepatologia e Gastroenterologia, Porto Alegre, RS, Brazil
| | | | - Henrique Sarubbi Fillmann
- Universidade Federal do Rio Grande do Sul (UFRGS), Hospital de Clínicas de Porto Alegre (HCPA), Laboratório Experimental de Hepatologia e Gastroenterologia, Porto Alegre, RS, Brazil
- Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Norma Possa Marroni
- Universidade Luterana do Brasil (ULBRA), Laboratório de Estresse Oxidativo e Antioxidantes, Canoas, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Pós-graduação em Ciências Médicas, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Hospital de Clínicas de Porto Alegre (HCPA), Laboratório Experimental de Hepatologia e Gastroenterologia, Porto Alegre, RS, Brazil
| |
Collapse
|
24
|
Kracht M, Müller-Ladner U, Schmitz ML. Mutual regulation of metabolic processes and proinflammatory NF-κB signaling. J Allergy Clin Immunol 2020; 146:694-705. [PMID: 32771559 DOI: 10.1016/j.jaci.2020.07.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/16/2020] [Accepted: 07/28/2020] [Indexed: 12/27/2022]
Abstract
The nuclear factor kappa B (NF-κB) signaling system, a key regulator of immunologic processes, also affects a plethora of metabolic changes associated with inflammation and the immune response. NF-κB-regulating signaling cascades, in concert with NF-κB-mediated transcriptional events, control the metabolism at several levels. NF-κB modulates apical components of metabolic processes including metabolic hormones such as insulin and glucagon, the cellular master switches 5' AMP-activated protein kinase and mTOR, and also numerous metabolic enzymes and their respective regulators. Vice versa, metabolic enzymes and their products also exert multilevel control of NF-κB activity, thereby creating a highly connected regulatory network. These insights have resulted in the identification of the noncanonical IκB kinase kinases IκB kinase ɛ and TBK1, which are upregulated by overnutrition, and may therefore be suitable potential therapeutic targets for metabolic syndromes. An inhibitor interfering with the activity of both kinases reduces obesity-related metabolic dysfunctions in mouse models and the encouraging results from a recent clinical trial indicate that targeting these NF-κB pathway components improves glucose homeostasis in a subset of patients with type 2 diabetes.
Collapse
Affiliation(s)
- Michael Kracht
- Rudolf Buchheim-Institute of Pharmacology, Justus-Liebig-University, Giessen, Germany
| | - Ulf Müller-Ladner
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University, Campus Kerckhoff, Bad Nauheim, Germany
| | | |
Collapse
|
25
|
Effects of Aqueous and Methanolic Extracts of Stem Bark of Alstonia boonei De Wild. (Apocynaceae) on Dextran Sodium Sulfate-Induced Ulcerative Colitis in Wistar Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:4918453. [PMID: 32565862 PMCID: PMC7277065 DOI: 10.1155/2020/4918453] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/04/2020] [Accepted: 05/15/2020] [Indexed: 12/21/2022]
Abstract
Among the most exploited species in Cameroon, Alstonia boonei is widely used in African medicine for the relief of several pathologies including gastrointestinal disorders. This study was conducted in order to assess the effects of aqueous and methanol stem-bark extracts of Alstonia boonei on DSS- (dextran sodium sulfate-) induced intestinal colitis and to determine its antioxidant potential. The classes of secondary metabolites present in these extracts were determined by chemical screening. The production of TNF-α, IL-6, IL-1β, and PGE2 was performed by in vitro ELISA analysis. Anticolitis effects were determined using an in vivo model of ulcerative colitis induced by DSS. The colitis was induced with a double dose of DSS (3% and 1%), and the aqueous and methanol extracts were administered orally from the 6th day after commencement of induction. The phytochemical screening revealed the presence of six classes of secondary metabolites in these crude extracts: tannins, saponins, alkaloids, steroids, flavonoids, and phenols. Methanol and aqueous extracts of Alstonia boonei significantly (P < 0.001) inhibited TNF-α, IL-6, IL-1β, and PGE2 production stimulated by LPS. Both extracts at all doses significantly reduced (P < 0.01, P < 0.001) the signs of DSS-induced colitis in the Wistar rats by decreasing inflammation and chronic colon damage. In addition, the extracts significantly (P < 0.001) reduced malondialdehyde and nitric oxide levels in the colon and significantly (P < 0.01) increased superoxide dismutase and catalase and reduced glutathione (P < 0.05). Both extracts showed greater activity than the reference substance (prednisolone 4 mg/kg) used in this study. This study has demonstrated that aqueous and methanol extracts of Alstonia boonei stem bark have healing properties against colitis experimentally induced by DSS in rats.
Collapse
|
26
|
Farré R, Fiorani M, Abdu Rahiman S, Matteoli G. Intestinal Permeability, Inflammation and the Role of Nutrients. Nutrients 2020; 12:nu12041185. [PMID: 32340206 PMCID: PMC7231157 DOI: 10.3390/nu12041185] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/10/2020] [Accepted: 04/17/2020] [Indexed: 12/17/2022] Open
Abstract
The interaction between host and external environment mainly occurs in the gastrointestinal tract, where the mucosal barrier has a critical role in many physiologic functions ranging from digestion, absorption, and metabolism. This barrier allows the passage and absorption of nutrients, but at the same time, it must regulate the contact between luminal antigens and the immune system, confining undesirable products to the lumen. Diet is an important regulator of the mucosal barrier, and the cross-talk among dietary factors, the immune system, and microbiota is crucial for the modulation of intestinal permeability and for the maintenance of gastrointestinal tract (GI) homeostasis. In the present review, we will discuss the role of a number of dietary nutrients that have been proposed as regulators of inflammation and epithelial barrier function. We will also consider the metabolic function of the microbiota, which is capable of elaborating the diverse nutrients and synthesizing products of great interest. Better knowledge of the influence of dietary nutrients on inflammation and barrier function can be important for the future development of new therapeutic approaches for patients with mucosal barrier dysfunction, a critical factor in the pathogenesis of many GI and non-GI diseases.
Collapse
Affiliation(s)
- Ricard Farré
- Translational Research Center for Gastrointestinal Disorders (TARGID) Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, 3000 Leuven, Belgium; (M.F.); (S.A.R.); (G.M.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +32-16-34-57-52
| | - Marcello Fiorani
- Translational Research Center for Gastrointestinal Disorders (TARGID) Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, 3000 Leuven, Belgium; (M.F.); (S.A.R.); (G.M.)
| | - Saeed Abdu Rahiman
- Translational Research Center for Gastrointestinal Disorders (TARGID) Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, 3000 Leuven, Belgium; (M.F.); (S.A.R.); (G.M.)
| | - Gianluca Matteoli
- Translational Research Center for Gastrointestinal Disorders (TARGID) Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, 3000 Leuven, Belgium; (M.F.); (S.A.R.); (G.M.)
| |
Collapse
|
27
|
Nemati A, Alipanah-Moghadam R, Molazadeh L, Naghizadeh Baghi A. The Effect of Glutamine Supplementation on Oxidative Stress and Matrix Metalloproteinase 2 and 9 After Exhaustive Exercise. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:4215-4223. [PMID: 31849453 PMCID: PMC6912001 DOI: 10.2147/dddt.s218606] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 12/04/2019] [Indexed: 12/14/2022]
Abstract
Background Glutamine is the most abundant amino acid in plasma and skeletal muscles and an important fuel for immune system cells. It has beneficial anti-inflammatory and antioxidant properties which may be considered as a potentially useful supplement for athletes. The present study was conducted to investigate the effect of glutamine supplementation on oxidative stress and matrix metalloproteinase 2 and 9 after exhaustive exercise in young healthy males. Materials and methods In this study, 30 healthy males (supplement =15 and control=15) were randomly assigned into two groups. The supplement group received 0.3 g/kg BW of glutamine along with 25 gr of sugar dissolved in 250 cc water per day. The control group received 25 gr of sugar in 250 cc water per day. Fasting blood samples were taken at baseline and at the end of 14 days of intervention. The participants underwent exercise until experiencing full-body exhaustive fatigue for 16 ± 2.84 mins, and then fasting blood samples were taken. Serum levels of TAC, MDA, MMP2, MMP9, glutathione, and hs-CRP were measured. Results Serum levels of MDA and hs-CRP significantly decreased in the supplement group (p< 0.05). The serum level of TAC significantly increased in the supplement group (p< 0.05). Glutathione serum levels significantly increased after exhaustive exercise (p< 0.05). Serum levels of MMP2 and MMP9 remained unchanged. Conclusion Results of this study showed that, some biochemical factors are time-dependent and can increase or decrease over time, as well as, serum levels of hs-CRP and MDA decreased with glutamine supplementation along with the increase in the TAC serum levels, but this supplementation had no effect on serum levels of MMP2 and MMP9 in exhaustive exercise.
Collapse
Affiliation(s)
- Ali Nemati
- Ardabil University of Medical Sciences, School of Medicine, Department of Clinical Biochemistry, Ardabil, Iran
| | - Reza Alipanah-Moghadam
- Ardabil University of Medical Sciences, School of Medicine, Department of Clinical Biochemistry, Ardabil, Iran
| | - Leila Molazadeh
- Ardabil University of Medical Sciences, School of Medicine, Department of Clinical Biochemistry, Ardabil, Iran
| | | |
Collapse
|
28
|
L'Huillier C, Jarbeau M, Achamrah N, Belmonte L, Amamou A, Nobis S, Goichon A, Salameh E, Bahlouli W, do Rego JL, Déchelotte P, Coëffier M. Glutamine, but not Branched-Chain Amino Acids, Restores Intestinal Barrier Function during Activity-Based Anorexia. Nutrients 2019; 11:nu11061348. [PMID: 31208031 PMCID: PMC6628073 DOI: 10.3390/nu11061348] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 12/21/2022] Open
Abstract
Background: During activity-based anorexia (ABA) in mice, enhanced paracellular permeability and reduced protein synthesis have been shown in the colon while the gut–brain axis has received increasing attention in the regulation of intestinal and mood disorders that frequently occur during anorexia nervosa, a severe eating disorder for which there is no specific treatment. In the present study, we assessed the effects of oral glutamine (Gln) or branched-chain amino acids (BCAA) supplementation during ABA to target intestinal functions, body composition and feeding behavior. Methods: C57BL/6 male mice were randomized in Control (CTRL) and ABA groups. After ABA induction, mice received, or not, either 1% Gln or 2.5% BCAA (Leu, Ile, Val) for one week in drinking water. Results: Neither Gln nor BCAA supplementation affected body weight and body composition, while only Gln supplementation slightly increased food intake. ABA mice exhibited increased paracellular permeability and reduced protein synthesis in the colonic mucosa. Oral Gln restored colonic paracellular permeability and protein synthesis and increased the mucin-2 mRNA level, whereas BCAA did not affect colonic parameters. Conclusion: In conclusion, oral Gln specifically improves colonic response during ABA. These data should be further confirmed in AN patients.
Collapse
Affiliation(s)
- Clément L'Huillier
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
| | - Marine Jarbeau
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
| | - Najate Achamrah
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
- Department of Nutrition, Rouen University Hospital, 76183 Rouen, France.
| | - Liliana Belmonte
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
- Department of Nutrition, Rouen University Hospital, 76183 Rouen, France.
| | - Asma Amamou
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
| | - Séverine Nobis
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
| | - Alexis Goichon
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
| | - Emmeline Salameh
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
| | - Wafa Bahlouli
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
| | - Jean-Luc do Rego
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
- Animal Behavior Facility, SCAC, UNIROUEN, 76183 Rouen, France.
| | - Pierre Déchelotte
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
- Department of Nutrition, Rouen University Hospital, 76183 Rouen, France.
| | - Moïse Coëffier
- UNIROUEN, INSERM UMR 1073 "Nutrition, Inflammation and Gut-Brain Axis", Normandie University, 76183 Rouen, France.
- Institute of Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, 76183 Rouen, France.
- Department of Nutrition, Rouen University Hospital, 76183 Rouen, France.
| |
Collapse
|
29
|
Schemitt EG, Hartmann RM, Colares JR, Licks F, Salvi JO, Marroni CA, Marroni NP. Protective action of glutamine in rats with severe acute liver failure. World J Hepatol 2019; 11:273-286. [PMID: 30967905 PMCID: PMC6447424 DOI: 10.4254/wjh.v11.i3.273] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/29/2019] [Accepted: 03/12/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Severe acute liver failure (SALF) is a rare, but high-mortality, rapidly evolving syndrome that leads to hepatocyte degeneration with impaired liver function. Thioacetamide (TAA) is a known xenobiotic, which promotes the increase of the formation of reactive oxygen species. Erythroid 2-related factor 2 (Nrf2) activates the antioxidant protection of cells. Studies have evidenced the involvement of inflammatory mediators in conditions of oxidative stress. AIM To evaluate the antioxidant effects of glutamine on Nrf2 activation and NFκB-mediated inflammation in rats with TAA-induced IHAG. METHODS Male Wistar rats (n = 28) were divided into four groups: control, control+glutamine, TAA, and TAA + glutamine. Two TAA doses (400 mg/kg) were administered intraperitoneally, 8 h apart. Glutamine (25 mg/kg) was administered at 30 min, 24 h, and 36 h. At 48 h, blood was collected for liver integrity analysis [aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase (ALP)]. The liver was harvested for histology and assessment of oxidative stress [thiobarbituric acid-reactive substances (TBARS), catalase (CAT), glutathione peroxidase (GPx), glutathione S-transferase (GST), glutathione (GSH), Nrf2, Kelch-like ECH-associated protein 1 (Keap1), NADPH quinone oxidoreductase1 (NQO1), superoxide dismutase (SOD)] and inflammatory process. RESULTS TAA caused disruption of the hepatic parenchyma, with inflammatory infiltration, massive necrosis, and ballooning degeneration. Glutamine mitigated this tissue damage, with visible regeneration of hepatic parenchyma; decreased TBARS (P < 0.001), GSH (P < 0.01), IL-1β, IL6, and TNFα levels (P <0.01) in hepatic tissue; and decreased blood levels of AST, ALT, and ALP (P <0.05). In addition, CAT, GPx, and GST activities were restored in the glutamine group (P <0.01, P <0.01, and P <0.001, respectively vs TAA alone). Glutamine increased expression of Nrf2 (P < 0.05), NQO1, and SOD (P < 0.01), as well as levels of IL-10 (P <0.001), while decreasing expression of Keap1, TLR4, NFκB (P < 0.001), COX-2 and iNOS, (P < 0.01), and reducing NO2 and NO3 levels (P < 0.05). CONCLUSION In the TAA experimental model of IHAG, glutamine activated the Nrf2 pathway, thus promoting antioxidant protection, and blunted the NFκB-mediated pathway, reducing inflammation.
Collapse
Affiliation(s)
- Elizângela G Schemitt
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre 90040060, Brazil
| | - Renata M Hartmann
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre 90040060, Brazil
| | - Josieli R Colares
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre 90040060, Brazil
| | - Francielli Licks
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre 90040060, Brazil
| | - Jéferson O Salvi
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre 90040060, Brazil
| | - Cláudio A Marroni
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre 90040060, Brazil.
| | - Norma P Marroni
- Laboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre 90040060, Brazil
| |
Collapse
|
30
|
Sugihara K, Morhardt TL, Kamada N. The Role of Dietary Nutrients in Inflammatory Bowel Disease. Front Immunol 2019; 9:3183. [PMID: 30697218 PMCID: PMC6340967 DOI: 10.3389/fimmu.2018.03183] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 12/27/2018] [Indexed: 12/22/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic and relapsing inflammatory disease of the gastrointestinal tract. Although the precise etiology of IBD remains incompletely understood, accumulating evidence suggests that various environmental factors, including dietary nutrients, contribute to its pathogenesis. Dietary nutrients are known to have an impact on host physiology and diseases. The interactions between dietary nutrients and intestinal immunity are complex. Dietary nutrients directly regulate the immuno-modulatory function of gut-resident immune cells. Likewise, dietary nutrients shape the composition of the gut microbiota. Therefore, a well-balanced diet is crucial for good health. In contrast, the relationships among dietary nutrients, host immunity and/or the gut microbiota may be perturbed in the context of IBD. Genetic predispositions and gut dysbiosis may affect the utilization of dietary nutrients. Moreover, the metabolism of nutrients in host cells and the gut microbiota may be altered by intestinal inflammation, thereby increasing or decreasing the demand for certain nutrients necessary for the maintenance of immune and microbial homeostasis. Herein, we review the current knowledge of the role dietary nutrients play in the development and the treatment of IBD, focusing on the interplay among dietary nutrients, the gut microbiota and host immune cells. We also discuss alterations in the nutritional metabolism of the gut microbiota and host cells in IBD that can influence the outcome of nutritional intervention. A better understanding of the diet-host-microbiota interactions may lead to new therapeutic approaches for the treatment of IBD.
Collapse
Affiliation(s)
- Kohei Sugihara
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Tina L Morhardt
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States.,Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Nobuhiko Kamada
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| |
Collapse
|
31
|
Gaifem J, Gonçalves LG, Dinis-Oliveira RJ, Cunha C, Carvalho A, Torrado E, Rodrigues F, Saraiva M, Castro AG, Silvestre R. L-Threonine Supplementation During Colitis Onset Delays Disease Recovery. Front Physiol 2018; 9:1247. [PMID: 30233416 PMCID: PMC6134202 DOI: 10.3389/fphys.2018.01247] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 08/17/2018] [Indexed: 12/19/2022] Open
Abstract
Dietary nutrients have emerged as potential therapeutic adjuncts for inflammatory bowel disease (IBD) given their impact on intestinal homeostasis through the modulation of immune response, gut microbiota composition and epithelial barrier stability. Several nutrients have already been associated with a protective phenotype. Yet, there is a lack of knowledge toward the most promising ones as well as the most adequate phase of action. To unveil the most prominent therapy candidates we characterized the colon metabolic profile during colitis development. We have observed a twofold decrease in threonine levels in mice subjected to DSS-induced colitis. We then assessed the effect of threonine supplementation in the beginning of the inflammatory process (DSS + Thr) or when inflammation is already established (DSS + Thr D8). Colitis progression was similar between the treated groups and control colitic mice, yet threonine had a surprisingly detrimental effect when administered in the beginning of the disease, with mice displaying a delayed recovery when compared to control mice and mice supplemented with threonine after day 8. Although no major changes were found in their metabolic profile, DSS + Thr mice displayed altered expression in mucin-encoding genes, as well as in goblet cell counts, unveiling an impaired ability to produce mucus. Moreover, IL-22 secretion was decreased in DSS + Thr mice when compared to DSS + Thr D8 mice. Overall, these results suggest that supplementation with threonine during colitis induction impact goblet cell number and delays the recovery period. This reinforces the importance of a deeper understanding regarding threonine supplementation in IBD.
Collapse
Affiliation(s)
- Joana Gaifem
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Luís G Gonçalves
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Oeiras, Portugal
| | - Ricardo J Dinis-Oliveira
- IINFACTS - Institute of Research and Advanced Training in Health Sciences and Technologies, Department of Sciences, CESPU, CRL, University Institute of Health Sciences, Gandra, Portugal.,UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.,Department of Public Health and Forensic Sciences, and Medical Education, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Cristina Cunha
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Agostinho Carvalho
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Egídio Torrado
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Fernando Rodrigues
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Margarida Saraiva
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - António G Castro
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| |
Collapse
|
32
|
S-allylmercaptocysteine attenuates posaconazole-induced adverse effects in mice through antioxidation and anti-inflammation. Int Immunopharmacol 2018. [DOI: 10.1016/j.intimp.2018.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
33
|
Swimming attenuates inflammation, oxidative stress, and apoptosis in a rat model of dextran sulfate sodium-induced chronic colitis. Oncotarget 2018; 8:7391-7404. [PMID: 28030847 PMCID: PMC5352330 DOI: 10.18632/oncotarget.14080] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 12/15/2016] [Indexed: 12/22/2022] Open
Abstract
Increasing evidence suggests that regular physical exercise suppresses chronic inflammation. However, the potential inhibitory effects of swimming on dextran sulfate sodium (DSS)-induced chronic colitis, and its underlying mechanisms, remain unclear. In this study, rats were orally administered DSS to induce chronic colitis, and subsequently treated with or without swimming exercise. A 7-week swimming program (1 or 1.5 hours per day, 5 days per week) ameliorated DSS-caused colon shortening, colon barrier disruption, spleen enlargement, serum LDH release, and reduction of body weight gain. Swimming for 1.5 hours per day afforded greater protection than 1 hour per day. Swimming ameliorated DSS-induced decrease in crypt depth, and increases in myeloperoxidase activity, infiltration of Ly6G+ neutrophils and TNF-a- and IFN-?-expressing CD3+ T cells, as well as fecal calprotectin and lactoferrin. Swimming inhibited pro-inflammatory cytokine and chemokine production and decreased the protein expression of phosphorylated nuclear factor-?B p65 and cyclooxygenase 2, whereas it elevated interleukin-10 levels. Swimming impeded the generation of reactive oxygen species, malondialdehyde, and nitric oxide; however, it boosted glutathione levels, total antioxidant capacity, and superoxide dismutase and glutathione peroxidase activities. Additionally, swimming decreased caspase-3 activity and expression of apoptosis-inducing factor, cytochrome c, Bax, and cleaved-caspase-3, but increased Bcl-2 levels. Overall, these results suggest that swimming exerts beneficial effects on DSS-induced chronic colitis by modulating inflammation, oxidative stress, and apoptosis.
Collapse
|
34
|
Functions and Signaling Pathways of Amino Acids in Intestinal Inflammation. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9171905. [PMID: 29682569 PMCID: PMC5846438 DOI: 10.1155/2018/9171905] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/30/2017] [Accepted: 12/13/2017] [Indexed: 12/11/2022]
Abstract
Intestine is always exposed to external environment and intestinal microorganism; thus it is more sensitive to dysfunction and dysbiosis, leading to intestinal inflammation, such as inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), and diarrhea. An increasing number of studies indicate that dietary amino acids play significant roles in preventing and treating intestinal inflammation. The review aims to summarize the functions and signaling mechanisms of amino acids in intestinal inflammation. Amino acids, including essential amino acids (EAAs), conditionally essential amino acids (CEAAs), and nonessential amino acids (NEAAs), improve the functions of intestinal barrier and expressions of anti-inflammatory cytokines and tight junction proteins but decrease oxidative stress and the apoptosis of enterocytes as well as the expressions of proinflammatory cytokines in the intestinal inflammation. The functions of amino acids are associated with various signaling pathways, including mechanistic target of rapamycin (mTOR), inducible nitric oxide synthase (iNOS), calcium-sensing receptor (CaSR), nuclear factor-kappa-B (NF-κB), mitogen-activated protein kinase (MAPK), nuclear erythroid-related factor 2 (Nrf2), general controlled nonrepressed kinase 2 (GCN2), and angiotensin-converting enzyme 2 (ACE2).
Collapse
|
35
|
Gu M, Bai N, Xu B, Xu X, Jia Q, Zhang Z. Protective effect of glutamine and arginine against soybean meal-induced enteritis in the juvenile turbot (Scophthalmus maximus). FISH & SHELLFISH IMMUNOLOGY 2017; 70:95-105. [PMID: 28882796 DOI: 10.1016/j.fsi.2017.08.048] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 08/13/2017] [Accepted: 08/25/2017] [Indexed: 06/07/2023]
Abstract
Soybean meal can induce enteritis in the distal intestine (DI) and decrease the immunity of several cultured fish species, including turbot Scophthalmus maximus. Glutamine and arginine supplementation have been used to improve immunity and intestinal morphology in fish. This study was conducted to investigate the effects of these two amino acids on the immunity and intestinal health of turbot suffering from soybean meal-induced enteritis. Turbots (initial weight 7.6 g) were fed one of three isonitrogenous and isolipidic diets for 8 weeks: SBM (control diet), with 40% soybean meal; GLN, SBM diet plus 1.5% glutamine; ARG, the SBM diet plus 1.5% arginine. Symptoms that are typical of soybean meal-induced enteritis, including swelling of the lamina propria and subepithelial mucosa and a strong infiltration of various inflammatory cells was observed in fish that fed the SBM diet. Glutamine and arginine supplementation significantly increased (1) the weight gain and feed efficiency ratio; (2) the height and vacuolization of villi and the integrity of microvilli in DI; (3) serum lysozyme activity, and the concentrations of C3, C4, and IgM. These two amino acids also significantly decreased the infiltration of leucocytes in the lamina propria and submucosa and the expression of inflammatory cytokines including il-8, tnf-α, and tgf-β. For the mucosal microbiota, arginine supplementation significantly increased microbiota community richness and diversity, and glutamine supplementation significantly increased the relative abundance of Lactobacillus and Bacillus. These results indicate that dietary glutamine and arginine improved the growth performance, feed utilization, and distal intestinal morphology, activated the innate and adaptive immune systems, changed the intestinal mucosal microbiota community, and relieved SBMIE possibly by suppression of the inflammation response.
Collapse
Affiliation(s)
- Min Gu
- Marine College, Shandong University at Weihai, 180 Wenhua West Road, Weihai, 264209, PR China
| | - Nan Bai
- Marine College, Shandong University at Weihai, 180 Wenhua West Road, Weihai, 264209, PR China.
| | - Bingying Xu
- Marine College, Shandong University at Weihai, 180 Wenhua West Road, Weihai, 264209, PR China
| | - Xiaojie Xu
- Marine College, Shandong University at Weihai, 180 Wenhua West Road, Weihai, 264209, PR China
| | - Qian Jia
- Marine College, Shandong University at Weihai, 180 Wenhua West Road, Weihai, 264209, PR China
| | - Zhiyu Zhang
- Marine College, Shandong University at Weihai, 180 Wenhua West Road, Weihai, 264209, PR China
| |
Collapse
|
36
|
Liu Y, Wang X, Hu CAA. Therapeutic Potential of Amino Acids in Inflammatory Bowel Disease. Nutrients 2017; 9:nu9090920. [PMID: 28832517 PMCID: PMC5622680 DOI: 10.3390/nu9090920] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 08/06/2017] [Accepted: 08/15/2017] [Indexed: 12/19/2022] Open
Abstract
Inflammatory bowel disease (IBD), which includes both ulcerative colitis and Crohn’s disease, is a chronic relapsing inflammation of the gastrointestinal tract, and is difficult to treat. The pathophysiology of IBD is multifactorial and not completely understood, but genetic components, dysregulated immune responses, oxidative stress, and inflammatory mediators are known to be involved. Animal models of IBD can be chemically induced, and are used to study etiology and to evaluate potential treatments of IBD. Currently available IBD treatments can decrease the duration of active disease but because of their adverse effects, the search for novel therapeutic strategies that can restore intestinal homeostasis continues. This review summarizes and discusses what is currently known of the effects of amino acids on the reduction of inflammation, oxidative stress, and cell death in the gut when IBD is present. Recent studies in animal models have identified dietary amino acids that improve IBD, but amino acid supplementation may not be adequate to replace conventional therapy. The animal models used in dietary amino acid research in IBD are described.
Collapse
Affiliation(s)
- Yulan Liu
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China.
| | - Xiuying Wang
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China.
| | - Chien-An Andy Hu
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China.
- Department of Biochemistry and Molecular Biology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA.
| |
Collapse
|
37
|
Chiu CT, Kuo SN, Hung SW, Yang CY. Combined Treatment with Hyaluronic Acid and Mesalamine Protects Rats from Inflammatory Bowel Disease Induced by Intracolonic Administration of Trinitrobenzenesulfonic Acid. Molecules 2017; 22:molecules22060904. [PMID: 28556814 PMCID: PMC6152619 DOI: 10.3390/molecules22060904] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 05/26/2017] [Accepted: 05/28/2017] [Indexed: 12/31/2022] Open
Abstract
Drugs such as mesalamine (5-ASA) are currently recommended for the treatment of inflammatory bowel disease (IBD). To reduce the frequency of their administration and improve their therapeutic effect, this study investigated the adhesion efficacy, wound healing promotion, and decrease in inflammation in ulcers in the colonic tissue of rats with colitis after combined treatment with hyaluronic acid (HA) and 5-ASA (IBD98-M). HA-fluoresceinamine (FL) conjugates successfully adhered to the mucosal layer and were conjugated in the vascular tissue. In addition, macroscopic and microscopic observations indicated that colonic injuries reduced significantly after treatment with IBD98-M. Compared with PBS and 5-ASA treatment alone, treatment with IBD98-M more effectively reduced bowel inflammation and promoted colonic mucosal healing in TNBS-induced colitis. IBD98-M treatment also reduced myeloperoxidase activity and the expression levels of cyclooxygenase 2 and tumor necrosis factor-αin the colitis tissue. In conclusion, IBD98-M treatment strongly promoted wound healing in colonic injuries and significantly inhibited MPO activity in the inflamed colon tissue of rats. Combined treatment with HA and 5-ASA can accelerate wound healing and reduce inflammatory reaction in rat colitis.
Collapse
Affiliation(s)
| | - Sheng-Nan Kuo
- Holy Stone Healthcare Co., Ltd., Taipei 11493, Taiwan.
| | - Shao-Wen Hung
- Division of Animal Resource, Animal Technology Laboratories, Agricultural Technology Research Institute, Hsinchu City 30093, Taiwan.
| | - Cheng-Yao Yang
- Division of Animal Resource, Animal Technology Laboratories, Agricultural Technology Research Institute, Hsinchu City 30093, Taiwan.
| |
Collapse
|
38
|
Kim MH, Kim H. The Roles of Glutamine in the Intestine and Its Implication in Intestinal Diseases. Int J Mol Sci 2017; 18:ijms18051051. [PMID: 28498331 PMCID: PMC5454963 DOI: 10.3390/ijms18051051] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 12/16/2022] Open
Abstract
Glutamine, the most abundant free amino acid in the human body, is a major substrate utilized by intestinal cells. The roles of glutamine in intestinal physiology and management of multiple intestinal diseases have been reported. In gut physiology, glutamine promotes enterocyte proliferation, regulates tight junction proteins, suppresses pro-inflammatory signaling pathways, and protects cells against apoptosis and cellular stresses during normal and pathologic conditions. As glutamine stores are depleted during severe metabolic stress including trauma, sepsis, and inflammatory bowel diseases, glutamine supplementation has been examined in patients to improve their clinical outcomes. In this review, we discuss the physiological roles of glutamine for intestinal health and its underlying mechanisms. In addition, we discuss the current evidence for the efficacy of glutamine supplementation in intestinal diseases.
Collapse
Affiliation(s)
- Min-Hyun Kim
- Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL 32611, USA.
| | - Hyeyoung Kim
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, College of Human Ecology, Yonsei University, Seoul 03722, Korea.
| |
Collapse
|
39
|
Crespo I, San-Miguel B, Mauriz JL, Ortiz de Urbina JJ, Almar M, Tuñón MJ, González-Gallego J. Protective Effect of Protocatechuic Acid on TNBS-Induced Colitis in Mice Is Associated with Modulation of the SphK/S1P Signaling Pathway. Nutrients 2017; 9:E288. [PMID: 28300788 PMCID: PMC5372951 DOI: 10.3390/nu9030288] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/09/2017] [Accepted: 03/13/2017] [Indexed: 01/07/2023] Open
Abstract
(1) Background: The present study aimed to investigate whether beneficial effects of protocatechuic acid (PCA) are associated with inhibition of the SphK/S1P axis and related signaling pathways in a 2,4,6-trinitrobenzenesulfonic acid (TNBS) model of inflammatory bowel disease; (2) Methods: Colitis was induced in male Balb/c mice by intracolonic administration of 2 mg of TNBS. PCA (30 or 60 mg/kg body wt) was given intraperitoneally daily for five days; (3) Results: Administration of PCA prevented the macroscopic and microscopic damage to the colonic mucosa, the decrease in body weight gain and the increase in myeloperoxidase activity induced by TNBS. PCA-treated mice exhibited a lower oxidized/reduced glutathione ratio, increased expression of antioxidant enzymes and Nrf2 and reduced expression of proinflammatory cytokines. Following TNBS treatment mRNA levels, protein concentration and immunohistochemical labelling for SphK1 increased significantly. S1P production and expression of S1P receptor 1 and S1P phosphatase 2 were significantly elevated. However, there was a decreased expression of S1P lyase. Furthermore, TNBS-treated mice exhibited increased phosphorylation of AKT and ERK, and a higher expression of pSTAT3 and the NF-κB p65 subunit. PCA administration significantly prevented those changes; (4) Conclusions: Data obtained suggest a contribution of the SphK/S1P system and related signaling pathways to the anti-inflammatory effect of PCA.
Collapse
Affiliation(s)
- Irene Crespo
- Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 24071, Spain.
| | - Beatriz San-Miguel
- Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain.
| | - José Luis Mauriz
- Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 24071, Spain.
| | | | - Mar Almar
- Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain.
| | - María Jesús Tuñón
- Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 24071, Spain.
| | - Javier González-Gallego
- Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 24071, Spain.
| |
Collapse
|
40
|
The effects of konjac oligosaccharide on TNBS-induced colitis in rats. Int Immunopharmacol 2016; 40:385-391. [DOI: 10.1016/j.intimp.2016.08.040] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 08/28/2016] [Accepted: 08/31/2016] [Indexed: 12/25/2022]
|
41
|
Cehreli R, Akpinar H, Artmann AT, Sagol O. Effects of Glutamine and Omega-3 Fatty Acids on Erythrocyte Deformability and Oxidative Damage in Rat Model of Enterocolitis. Gastroenterology Res 2016; 8:265-273. [PMID: 27785307 PMCID: PMC5051045 DOI: 10.14740/gr683w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/24/2015] [Indexed: 11/11/2022] Open
Abstract
Background The aim of the study was to investigate preventive effects of glutamine (Gln), omega-3 fatty acids (FA) on erythrocyte deformability (EDEF) in rat model of indomethacin-induced enterocolitis. Methods Nineteen Wistar albino male rats were divided into three groups: control group, colitis induced by indomethacin and were fed with a standard laboratory diet (group 1), and colitis induced by indomethacin and were also fed with Gln, omega-3 FA (group 2). An investigation was performed in a rat model of experimental colitis induced by subcutaneous injections of 2 mL intdomethacine solution applied at 24 and 48 hours intervals to male Wistar rats for 14 days. Gln and omega-3 FA were added to the daily standard diets of the animals during 14 days of injections. During the study, changes in body weight were evaluated. The intestines were examined, and colitis was macroscopic and histologically scored. The circulating tumor necrosis factor alpha (TNF-α) and interleukine-1β (IL-1β), erythrocyte transit time (ETT) and thiobarbituric acid reactive substances (TBARS) levels were determined in addition to calculation of EDEF indices in all groups. Results No significant differences in body weight changes could be determined between the standard diet and special diet groups at the end of the experiment. After macroscopic and microscopic scoring, in all of the groups that colitis was found induced, the lowest microscopic score was observed in the group 2. But Gln and omega-3 FA supplemented diet did not change the mean macroscopic and histological scores in all rats. The proliferating cell nuclear antigen (PCNA) levels were significantly higher in group 1 and group 2 compared to the control group. Effects of the diet on circulating TNF-α and IL-1β levels were found correlated with inflammation but statistically significant differences were not found in the group 1 and group 2 (P < 0.05). The ETT and TBARS levels in standard and special diet groups were significantly increased (P < 0.05). However, EDEF indices which are an important parameter of the study were decreased in indomethacin-induced enterocolitis groups that fed with standard and special diet. Conclusions Increases in ETT and TBARS levels did not return to normal by addition of Gln and omega-3 FA to diet. Our results suggest that determination of effective optimal doses and route of administration for these nutrients may play an important role in reducing EDEF and microvascular changes.
Collapse
Affiliation(s)
- Ruksan Cehreli
- Department of Prevantive Oncology, Institute of Oncology, Dokuz Eylul University Inciralti, Izmir 35340, Turkey
| | - Hale Akpinar
- Division of Gastroenterology, Dokuz Eylul University School of Medicine, Inciralti, Izmir 35340, Turkey
| | - Aysegul Temiz Artmann
- Department of Cell Biophysics and Cellular Engineering, Institute for Bioengineering, Aachen University of Applied Sciences, Germany
| | - Ozgul Sagol
- Department of Pathology, Dokuz Eylul University School of Medicine, Inciralti, Izmir 35340, Turkey
| |
Collapse
|
42
|
Inflammatory bowel disease: exploring gut pathophysiology for novel therapeutic targets. Transl Res 2016; 176:38-68. [PMID: 27220087 DOI: 10.1016/j.trsl.2016.04.009] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 03/17/2016] [Accepted: 04/28/2016] [Indexed: 12/14/2022]
Abstract
Ulcerative colitis and Crohn's disease are the 2 major phenotypes of inflammatory bowel disease (IBD), which are influenced by a complex interplay of immunological and genetic elements, though the precise etiology still remains unknown. With IBD developing into a globally prevailing disease, there is a need to explore new targets and a thorough understanding of the pathophysiological differences between the healthy and diseased gut could unearth new therapeutic opportunities. In this review, we provide an overview of the major aspects of IBD pathogenesis and thereafter present a comprehensive analysis of the gut pathophysiology leading to a discussion on some of the most promising targets and biologic therapies currently being explored. These include various gut proteins (CXCL-10, GATA-3, NKG2D, CD98, microRNAs), immune cells recruited to the gut (mast cells, eosinophils, toll-like receptors 2, 4), dysregulated proinflammatory cytokines (interleukin-6, -13, -18, -21), and commensal microbiota (probiotics and fecal microbiota transplantation). We also evaluate some of the emerging nonconventional therapies being explored in IBD treatment focusing on the latest developments in stem cell research, oral targeting of the gut-associated lymphoid tissue, novel anti-inflammatory signaling pathway targeting, adenosine deaminase inhibition, and the beneficial effects of antioxidant and nutraceutical therapies. In addition, we highlight the growth of biologics and their targets in IBD by providing information on the preclinical and clinical development of over 60 biopharmaceuticals representing the state of the art in ulcerative colitis and Crohn's disease drug development.
Collapse
|
43
|
Ghouzali I, Lemaitre C, Bahlouli W, Azhar S, Bôle-Feysot C, Meleine M, Ducrotté P, Déchelotte P, Coëffier M. Targeting immunoproteasome and glutamine supplementation prevent intestinal hyperpermeability. Biochim Biophys Acta Gen Subj 2016; 1861:3278-3288. [PMID: 27544233 DOI: 10.1016/j.bbagen.2016.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/15/2016] [Accepted: 08/15/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Intestinal hyperpermeability has been reported in several intestinal and non-intestinal disorders. We aimed to investigate the role of the ubiquitin proteasome system in gut barrier regulation in two mice models: the water avoidance stress model (WAS) and a post-inflammatory model (post-TNBS). METHODS Both models were applied in C57BL/6 male mice (n=7-8/group); Proteasome was targeted by injection of a selective proteasome inhibitor or by using knock-out mice for β2i proteasome subunit. Finally, glutamine supplementation was evaluated. RESULTS In both models (WAS at day 10, post-TNBS at day 28), we observed an increase in proteasome trypsin-like activity and in inducible β2/constitutive β2 subunit protein expression ratio, associated with an increase in intestinal permeability. Moreover, intestinal hyperpermeability was blunted by intraperitoneal injection of selective proteasome inhibitor in WAS and post-TNBS mice. Of note, knock-out mice for the β2i subunit exhibited a significant decrease in intestinal permeability and fecal pellet output during WAS. Glutamine supplementation also improved colonic permeability in both models. CONCLUSIONS In conclusion, the proteasome system is altered in the colonic mucosa of WAS and post-TNBS mice with increased trypsin-like activity. Associated intestinal hyperpermeability was blunted by immunoproteasome inhibition.
Collapse
Affiliation(s)
- Ibtissem Ghouzali
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France
| | - Caroline Lemaitre
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France; Department of Gastroenterology, Rouen University Hospital, Rouen, France
| | - Wafa Bahlouli
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France
| | - Saïda Azhar
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France
| | - Christine Bôle-Feysot
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France
| | - Mathieu Meleine
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France
| | - Philippe Ducrotté
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France; Department of Gastroenterology, Rouen University Hospital, Rouen, France
| | - Pierre Déchelotte
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France; Department of Nutrition, Rouen University Hospital, Rouen, France
| | - Moïse Coëffier
- Normandie Univ, INSERM unit 1073, Nutrition, Inflammation and Gut-brain axis, Rouen, France; Rouen University, Institute for Research and Innovation in Biomedicine, Rouen, France; Department of Nutrition, Rouen University Hospital, Rouen, France.
| |
Collapse
|
44
|
Bertrand J, Ghouzali I, Guérin C, Bôle-Feysot C, Gouteux M, Déchelotte P, Ducrotté P, Coëffier M. Glutamine Restores Tight Junction Protein Claudin-1 Expression in Colonic Mucosa of Patients With Diarrhea-Predominant Irritable Bowel Syndrome. JPEN J Parenter Enteral Nutr 2016; 40:1170-1176. [DOI: 10.1177/0148607115587330] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 04/21/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Julien Bertrand
- INSERM UMR1073, University of Rouen, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France
| | - Ibtissem Ghouzali
- INSERM UMR1073, University of Rouen, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France
| | - Charlène Guérin
- INSERM UMR1073, University of Rouen, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France
| | - Christine Bôle-Feysot
- INSERM UMR1073, University of Rouen, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France
| | - Mélodie Gouteux
- INSERM UMR1073, University of Rouen, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France
| | - Pierre Déchelotte
- INSERM UMR1073, University of Rouen, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France
- Department of Nutrition, Rouen University Hospital, Rouen, France
| | - Philippe Ducrotté
- INSERM UMR1073, University of Rouen, Rouen, France
- Department of Gastroenterology, Rouen University Hospital, Rouen, France
| | - Moïse Coëffier
- INSERM UMR1073, University of Rouen, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France
- Department of Nutrition, Rouen University Hospital, Rouen, France
| |
Collapse
|
45
|
Uranga JA, López-Miranda V, Lombó F, Abalo R. Food, nutrients and nutraceuticals affecting the course of inflammatory bowel disease. Pharmacol Rep 2016; 68:816-26. [PMID: 27267792 DOI: 10.1016/j.pharep.2016.05.002] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 05/07/2016] [Accepted: 05/09/2016] [Indexed: 12/20/2022]
Abstract
Inflammatory bowel diseases (ulcerative colitis; Crohn's disease) are debilitating relapsing inflammatory disorders affecting the gastrointestinal tract, with deleterious effect on quality of life, and increasing incidence and prevalence. Mucosal inflammation, due to altered microbiota, increased intestinal permeability and immune system dysfunction underlies the symptoms and may be caused in susceptible individuals by different factors (or a combination of them), including dietary habits and components. In this review we describe the influence of the Western diet, obesity, and different nutraceuticals/functional foods (bioactive peptides, phytochemicals, omega 3-polyunsaturated fatty acids, vitamin D, probiotics and prebiotics) on the course of IBD, and provide some hints that could be useful for nutritional guidance. Hopefully, research will soon offer enough reliable data to slow down the spread of the disease and to make diet a cornerstone in IBD therapy.
Collapse
Affiliation(s)
- José Antonio Uranga
- Área de Histología y Anatomía Patológica, Depto. de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos (URJC), Madrid, Spain; Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CIAL) del Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; Grupo de Excelencia Investigadora URJC-Banco de Santander-Grupo Multidisciplinar de Investigación y Tratamiento del Dolor (i+DOL). Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos (URJC), Madrid, Spain
| | - Visitación López-Miranda
- Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CIAL) del Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; Grupo de Excelencia Investigadora URJC-Banco de Santander-Grupo Multidisciplinar de Investigación y Tratamiento del Dolor (i+DOL). Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos (URJC), Madrid, Spain; Área de Farmacología y Nutrición, Depto. de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, URJC, Madrid, Spain; Unidad Asociada I+D+i al Instituto de Química Médica (IQM) del CSIC, Madrid, Spain
| | - Felipe Lombó
- Grupo de Investigación "Biotecnología de Nutracéuticos y Compuestos Bioactivos-BIONUC", Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain
| | - Raquel Abalo
- Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CIAL) del Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; Grupo de Excelencia Investigadora URJC-Banco de Santander-Grupo Multidisciplinar de Investigación y Tratamiento del Dolor (i+DOL). Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos (URJC), Madrid, Spain; Área de Farmacología y Nutrición, Depto. de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, URJC, Madrid, Spain; Unidad Asociada I+D+i al Instituto de Química Médica (IQM) del CSIC, Madrid, Spain.
| |
Collapse
|
46
|
Janakiram NB, Mohammed A, Madka V, Kumar G, Rao CV. Prevention and treatment of cancers by immune modulating nutrients. Mol Nutr Food Res 2016; 60:1275-94. [PMID: 26833775 PMCID: PMC6038926 DOI: 10.1002/mnfr.201500884] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/16/2016] [Accepted: 01/18/2016] [Indexed: 12/11/2022]
Abstract
Epidemiological and laboratory data support the protective effects of bioactive nutrients in our diets for various diseases. Along with various factors, such as genetic history, alcohol, smoking, exercise, and dietary choices play a vital role in affecting an individual's immune responses toward a transforming cell, by either preventing or accelerating a neoplastic transformation. Ample evidence suggests that dietary nutrients control the inflammatory and protumorigenic responses in immune cells. Immunoprevention is usually associated with the modulation of immune responses that help in resolving the inflammation, thus improving clinical outcome. Various metabolic pathway-related nutrients, including glutamine, arginine, vitamins, minerals, and long-chain fatty acids, are important components of immunonutrient mixes. Epidemiological studies related to these substances have reported different results, with no or minimal effects. However, several studies suggest that these nutrients may have immune-modulating effects that may lower cancer risk. Preclinical studies submit that most of these components may provide beneficial effects. The present review discusses the available data, the immune-modulating functions of these nutrients, and how these substances could be used to study immune modulation in a neoplastic environment. Further research will help to determine whether the mechanistic signaling pathways in immune cells altered by nutrients can be exploited for cancer prevention and treatment.
Collapse
Affiliation(s)
- Naveena B. Janakiram
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Altaf Mohammed
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Venkateshwar Madka
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Gaurav Kumar
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Chinthalapally V. Rao
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| |
Collapse
|
47
|
Yang KC, Chen HT, Wu CC, Lian YJ, Chen LL, Sumi S, Huang TL. l -glutamine regulates the expression of matrix proteins, pro-inflammatory cytokines and catabolic enzymes in interleukin-1beta-stimulated human chondrocytes. Process Biochem 2016. [DOI: 10.1016/j.procbio.2015.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
48
|
Fang K, Sideri A, Law IKM, Bakirtzi K, Polytarchou C, Iliopoulos D, Pothoulakis C. Identification of a novel substance P (SP)-neurokinin-1 receptor (NK-1R) microRNA-221-5p inflammatory network in human colonic epithelial cells. Cell Mol Gastroenterol Hepatol 2015; 1:503-515. [PMID: 26645045 PMCID: PMC4669978 DOI: 10.1016/j.jcmgh.2015.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Substance P (SP), a neuropeptide member of the tachykinin family, plays a critical role in colitis. MicroRNAs (miRNAs) are small non-coding RNAs that negatively regulate gene expression. However, whether SP modulates expression of microRNAs in human colonic epithelial cells remains unknown. METHODS We performed microRNA profiling analysis of SP-stimulated human colonic epithelial NCM460 cells overexpressing neurokinin-1 receptor (NCM460-NK-1R). Targets of SP-regulated microRNAs were validated by real time polymerase chain reaction (RT-PCR). Functions of miRNAs were tested in NCM460-NK-1R cells and the TNBS and DSS models of colitis. RESULTS SP stimulated differential expression of 29 microRNAs, including miR-221-5p, the highest up regulated miR (by 12.6-fold) upon SP stimulation. Bioinformatic and luciferase reporter analyses identified interleukin 6 receptor (IL-6R) mRNA as a direct target of miR-221-5p in NCM460 cells. Accordingly, SP exposure of NCM460-NK-1R cells increased IL-6R mRNA expression, while overexpression of miR-221-5p reduced IL-6R expression. NF-κB and JNK inhibition decreased SP-induced miR-221-5p expression. MiR-221-5p expression was increased in both TNBS- and DSS-induced colitis and colonic biopsies from Ulcerative Colitis, but not Crohn's Disease subjects, compared to controls. In mice, intracolonic administration of a miR-221-5p chemical inhibitor, exacerbated TNBS-and DSS-induced colitis, and increased colonic TNF-α, Cxcl10, and Col2 α 1 mRNA expression. In situ hybridization in TNBS-and DSS-exposed colons revealed increased miR-221-5p expression primarily in colonocytes. CONCLUSIONS Our results reveal a novel NK-1R-miR-221-5p-IL-6R network that protects from colitis. The use of miR-221-5p mimics may be a promising approach for colitis treatment.
Collapse
Affiliation(s)
- Kai Fang
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Aristea Sideri
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Ivy Ka Man Law
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Kyriaki Bakirtzi
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Christos Polytarchou
- Center for Systems Biomedicine, Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Dimitrios Iliopoulos
- Center for Systems Biomedicine, Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Charalabos Pothoulakis
- Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California, Los Angeles, California,Correspondence Address correspondence to: Charalabos Pothoulakis, MD, Division of Digestive Diseases, Inflammatory Bowel Disease Center, David Geffen School of Medicine, University of California at Los Angeles, 675 Charles E. Young Drive, South MRL Building 1240, Los Angeles, California 90095.
| |
Collapse
|
49
|
Pisonero-Vaquero S, Martínez-Ferreras Á, García-Mediavilla MV, Martínez-Flórez S, Fernández A, Benet M, Olcoz JL, Jover R, González-Gallego J, Sánchez-Campos S. Quercetin ameliorates dysregulation of lipid metabolism genes via the PI3K/AKT pathway in a diet-induced mouse model of nonalcoholic fatty liver disease. Mol Nutr Food Res 2015; 59:879-93. [PMID: 25712622 DOI: 10.1002/mnfr.201400913] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/03/2015] [Accepted: 02/09/2015] [Indexed: 12/12/2022]
Abstract
SCOPE Flavonoids and related compounds seem to have favorable effects on nonalcoholic fatty liver disease (NAFLD) progression, although the exact mechanisms implicated are poorly understood. In this study, we aimed to investigate the effect of the flanovol quercetin on gene expression deregulation involved in the development of NAFLD, as well as the possible implication of phosphatidylinositol 3-kinase (PI3K)/AKT pathway modulation. METHODS AND RESULTS We used an in vivo model based on methionine- and choline-deficient (MCD) diet-fed mice and an in vitro model consisting of Huh7 cells incubated with MCD medium. MCD-fed mice showed classical pathophysiological characteristics of nonalcoholic steatohepatitis, associated with altered transcriptional regulation of fatty acid uptake- and trafficking-related gene expression, with increased lipoperoxidation. PI3K/AKT pathway was activated by MCD and triggered gene deregulation causing either activation or inhibition of all studied genes as demonstrated through cell incubation with the PI3K-inhibitor LY294002. Treatment with quercetin reduced AKT phosphorylation, and oxidative/nitrosative stress, inflammation and lipid metabolism-related genes displayed a tendency to normalize in both in vivo and in vitro models. CONCLUSION These results place quercetin as a potential therapeutic strategy for preventing NAFLD progression by attenuating gene expression deregulation, at least in part through PI3K/AKT pathway inactivation.
Collapse
|
50
|
Bertrand J, Marion-Letellier R, Azhar S, Chan P, Legrand R, Goichon A, Ghouzali I, Aziz M, Vaudry D, Savoye G, Déchelotte P, Coëffier M. Glutamine enema regulates colonic ubiquitinated proteins but not proteasome activities during TNBS-induced colitis leading to increased mitochondrial activity. Proteomics 2015; 15:2198-210. [PMID: 25689466 DOI: 10.1002/pmic.201400304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 01/12/2015] [Accepted: 02/12/2015] [Indexed: 12/22/2022]
Abstract
Ubiquitin proteasome system contributes to the regulation of intestinal inflammatory response as its inhibition is associated with tissue damage improvement. We aimed to evaluate whether glutamine is able to limit inflammation by targeting ubiquitin proteasome system in experimental colitis. Colitis was induced in male rats by intrarectal instillation of 2-4-6-trinitrobenzen sulfonic acid (TNBS) at day 1. From day 2 to day 6, rats daily received either an intrarectal instillation of PBS (TNBS/PBS group) or glutamine (TNBS/Gln). Rats were euthanized at day 7 and colonic samples were taken to evaluate ubiqutinated proteins by proteomic approach combining 2D electrophoresis and immunoblots directed against ubiquitin. Results were then confirmed by evaluating total expression of proteins and mRNA levels. Survival rate, TNFα, and IL-1β mRNA were improved in TNBS/Gln compared with TNBS/PBS (p < 0.05). Proteasome activities were affected by TNBS but not by glutamine. We identified eight proteins that were less ubiquitinated in TNBS/PBS compared with controls with no effect of glutamine. Four proteins were more ubiquitinated in TNBS/PBS group and restored in TNBS/Gln group. Finally, 12 ubiquitinated proteins were only affected by glutamine. Among proteins affected by glutamine, eight proteins (GFPT1, Gapdh, Pkm2, LDH, Bcat2, ATP5a1, Vdac1, and Vdac2) were involved in metabolic pathways. In conclusion, glutamine may regulate ubiquitination process during intestinal inflammation.
Collapse
Affiliation(s)
- Julien Bertrand
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - Rachel Marion-Letellier
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - Saïda Azhar
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - Philippe Chan
- Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France.,Plateform of Proteomics PISSARO, Mont-Saint-Aignan, France
| | - Romain Legrand
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - Alexis Goichon
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - Ibtissem Ghouzali
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - Moutaz Aziz
- Laboratory of Anatomo-Pathology, Rouen University Hospital, Rouen, France
| | - David Vaudry
- Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France.,Plateform of Proteomics PISSARO, Mont-Saint-Aignan, France.,INSERM Unit 982, Mont-Saint-Aignan, France
| | - Guillaume Savoye
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France.,Department of Gastroenterology, Rouen University Hospital, Rouen, France
| | - Pierre Déchelotte
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France.,Department of Nutrition, Rouen University Hospital, Rouen, France
| | - Moïse Coëffier
- INSERM Unit 1073, Nutrition Inflammation and Gut Brain Axis, Rouen, France.,Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France.,Department of Nutrition, Rouen University Hospital, Rouen, France
| |
Collapse
|