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Anti-inflammatory and gut microbiota regulatory effects of walnut protein derived peptide LPF in vivo. Food Res Int 2022; 152:110875. [DOI: 10.1016/j.foodres.2021.110875] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/29/2021] [Accepted: 12/04/2021] [Indexed: 02/08/2023]
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52
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Kai L, Zong X, Jiang Q, Lu Z, Wang F, Wang Y, Wang T, Jin M. Protective effects of polysaccharides from Atractylodes macrocephalae Koidz. against dextran sulfate sodium induced intestinal mucosal injury on mice. Int J Biol Macromol 2022; 195:142-151. [PMID: 34896465 DOI: 10.1016/j.ijbiomac.2021.12.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/26/2021] [Accepted: 12/05/2021] [Indexed: 02/06/2023]
Abstract
In the present research, the water-soluble polysaccharides (AMP) from Atractylodes macrocephalae Koidz. were isolated and prepared. The protective effects of AMP on intestinal mucosal barrier injury induced by dextran sulfate sodium (DSS) in mice were investigated. It was found that AMP treatment significantly alleviated the body weight decreases and shorten colon length, and ameliorated colonic damage induced by DSS. Importantly, AMP prevented the over-expression of proinflammatory cytokines TNF-α, IL-1β and IL-6, and decreased the infiltration of neutrophils in colon. Additionally, AMP could raise expressions of Mucin 2 and tight junction protein Claudin-1. AMP also modulated the intestinal microbiota by enhancing the overall richness and diversity, greatly reducing the proportion of harmful bacteria, for instance, Clostridiumsensu stricto1 and Escherichia Shigella, however, augmenting the ratio of potential beneficial bacteria such as Faecalibaculum and Bifidobacterium. This work offers some important insights on protective effects of polysaccharides AMP against intestinal barrier dysfunction and provides underlying mechanism of health-beneficial properties of these biological macromolecules.
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Affiliation(s)
- Lixia Kai
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, PR China; National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Zhejiang University, Hangzhou 310058, PR China; Institute of Feed Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xin Zong
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, PR China; National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Zhejiang University, Hangzhou 310058, PR China; Institute of Feed Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Qin Jiang
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zeqing Lu
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, PR China; National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Zhejiang University, Hangzhou 310058, PR China; Institute of Feed Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Fengqin Wang
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, PR China; National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Zhejiang University, Hangzhou 310058, PR China; Institute of Feed Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yizhen Wang
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, PR China; National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Zhejiang University, Hangzhou 310058, PR China; Institute of Feed Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Tenghao Wang
- Institute of Feed Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China; Zhejiang Qinglian Food Co., Ltd., Jiaxing 314399, PR China.
| | - Mingliang Jin
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, PR China; National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Zhejiang University, Hangzhou 310058, PR China; Institute of Feed Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China.
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53
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Kwak MJ, Ha DJ, Choi YS, Lee H, Whang KY. Protective and restorative effects of sophorolipid on intestinal dystrophy in dextran sulfate sodium-induced colitis mouse model. Food Funct 2022; 13:161-169. [PMID: 34874374 DOI: 10.1039/d1fo03109k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The public has gradually begun to regard inflammatory bowel disease (IBD) as a crucial health issue; however, its mode of action has not been fully elucidated. Sophorolipid (SPL), a glycolipid-type biosurfactant, could be used as a potential treatment in physical intestinal dystrophy. We conducted a 2 × 2 factorial experiment to investigate the protective effect of SPL in a dextran sulfate sodium (DSS)-induced colitis mouse model (first factor, presence of SPL in feed; second factor, presence of DSS in water). Forty C57BL/6 mice (8-week-old) were used, and they were allocated to treatments according to their initial body weight. After a 7 d adjustment period, the DSS treatment was initiated in specific groups. At day 14, DSS was withdrawn from mice, and half of the mice were randomly selected and euthanized to collect colon and colon content samples. Three days after the end of DSS treatment, the rest of the mice were euthanized to investigate the therapeutic effect of SPL. Dietary SPL improved the growth performance in 3 d after DSS treatment, and the histopathological score was lower in the DSS-treated SPL group than in the DSS-treated control group. Mucosal thickness and goblet cell numbers significantly increased in the SPL-supplemented groups compared to in the control group. Similarly, SPL supplementation upregulated the gene expression levels of mucin-2, interleukin-10, and transforming growth factor-β, and increased the concentration of short chain fatty acid compared to the control groups. In conclusion, dietary supplementation with SPL attenuated the pathological response against acute and chronic inflammation by the maintenance of the mucosal barrier and wound healing capacity.
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Affiliation(s)
- Min-Jin Kwak
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea. .,Division of Interdisciplinary Program in Precision Public Health (BK21 FOUR Program), Department of Biomedical Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Dong-Jin Ha
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea.
| | - Yong-Soon Choi
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea.
| | - Hanbae Lee
- Pathway Intermediates, Seoul 02841, Republic of Korea.
| | - Kwang-Youn Whang
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea.
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Sheng K, Yang J, Xu Y, Kong X, Wang J, Wang Y. Alleviation effects of grape seed proanthocyanidin extract on inflammation and oxidative stress in a d-galactose-induced aging mouse model by modulating the gut microbiota. Food Funct 2022; 13:1348-1359. [DOI: 10.1039/d1fo03396d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Grape seed proanthocyanidin extract delayed the d-galactose-induced aging process in mice through the gut microbiota–liver axis and microbiota–brain axis.
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Affiliation(s)
- Kangliang Sheng
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, Anhui, China
| | - Jian Yang
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, Anhui, China
| | - Yifan Xu
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, Anhui, China
| | - Xiaowei Kong
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, Anhui, China
| | - Jingmin Wang
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, Anhui, China
| | - Yongzhong Wang
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, Anhui, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, Anhui, China
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55
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Wang G, Song J, Huang Y, Li X, Wang H, Zhang Y, Suo H. Lactobacillus plantarum SHY130 isolated from yak yogurt attenuates hyperglycemia in C57BL/6J mice by regulating the enteroinsular axis. Food Funct 2021; 13:675-687. [PMID: 34935020 DOI: 10.1039/d1fo02387j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Diabetes, one of the most serious and common chronic metabolic diseases affecting people worldwide in the 21st century, has become a major problem that needs to be addressed urgently. This study was designed to elucidate the anti-diabetic effect of yak yogurt-derived Lactobacillus (L.) plantarum SHY130 on C57BL/6J mice fed high-fat diet and streptozotocin (HFD/STZ), and the potential regulatory mechanisms involved. Mice were divided into 3 groups: normal control, diabetes, and diabetes treated with L. plantarum SHY130 (SHY130). Treatment with L. plantarum SHY130 had a regulatory effect on blood glucose and clearly ameliorated insulin resistance in T2DM mice. L. plantarum SHY130 inhibited the reduction in β-cell mass and α-cell proliferation in the pancreas and increased the expression of the short-chain fatty acid (SCFA) receptors GPR43 and GPR41 in the colon of T2DM mice. Furthermore, L. plantarum SHY130 treatment readjusted intestinal flora structure, enhanced the abundance of SCFA-producing bacteria, such as Faecalibaculum, Odoribacter, Alistipes, and increased the levels of SCFAs in diabetic mice. In summary, L. plantarum SHY130 ameliorated hyperglycemia in HFD/STZ-induced diabetic mice by regulating the enteroinsular axis.
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Affiliation(s)
- Guangqi Wang
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Jiajia Song
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Yechuan Huang
- College of Bioengineering, Jingchu University of Technology, Jingmen 448000, China
| | - Xueqiong Li
- Chongqing Agricultural Product Quality and Safety Center, Chongqing 400020, China
| | - Hongwei Wang
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Yu Zhang
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing 400715, China.
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Sheng K, Xu Y, Kong X, Wang J, Zha X, Wang Y. Probiotic Bacillus cereus Alleviates Dextran Sulfate Sodium-Induced Colitis in Mice through Improvement of the Intestinal Barrier Function, Anti-Inflammation, and Gut Microbiota Modulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14810-14823. [PMID: 34677958 DOI: 10.1021/acs.jafc.1c03375] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dysbiosis leads to continuous progress of inflammatory bowel disease (IBD). However, current therapeutic approaches for IBD have limited efficacy and are associated with various side effects. This study focused on exploring the positive effect of a new Bacillus cereus (B. cereus) strain (HMPM18123) in a colitis mouse model and elucidate the underlying molecular mechanisms. The colitis symptoms were alleviated by the B. cereus administration as evidenced by decreased body weight loss, colon length shortening, disease activity index score, and histopathological score. The B. cereus mitigated intestinal epithelial barrier damage by upregulating tight junction protein expression. Moreover, B. cereus exerted anti-inflammatory effects by regulating macrophage polarization and suppressing the TLR4-NF-κB-NLRP3 inflammasome signaling pathways. B. cereus also rebalanced the damaged gut microbiota. Thus, the molecular mechanism of alleviating colitis by B. cereus treatment involved the regulation of the TLR4-NF-κB-NLRP3 inflammasome signaling pathways in intestinal mucosal barriers by modulating gut microbiota composition.
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Affiliation(s)
- Kangliang Sheng
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, Anhui 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui 230601, China
| | - Yifan Xu
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, Anhui 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui 230601, China
| | - Xiaowei Kong
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, Anhui 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui 230601, China
| | - Jingmin Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, Anhui 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui 230601, China
| | - Xiangdong Zha
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, Anhui 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui 230601, China
| | - Yongzhong Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, Anhui 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui 230601, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
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Sato DT, Campos FG, Kotze PG, Mendonça RLS, Kanno DT, Pereira JA, Martinez CAR. Sucralfate enemas reduce the oxidative tissue damage and preserves the contents of E-cadherin and ?-catenin in colonic mucosa without fecal stream. Acta Cir Bras 2021; 36:e361007. [PMID: 34852133 PMCID: PMC8650803 DOI: 10.1590/acb361007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/15/2021] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To evaluate the effects of sucralfate enemas in tissue contents of E-cadherin and ?-catenin in an experimental diversion colitis. METHODS Thirty-six male Wistar rats were submitted to a proximal colostomy and a distal mucous fistula. They were allocated into three groups: first group received daily saline enemas (2 mL/day) and the two other groups daily enemas with sucralfate at dosage of 1 or 2 g/kg/day, respectively. Six animals of each group were euthanized after two weeks and six animals after four weeks. The inflammation of the excluded mucosa was evaluated by histological analysis. The oxidative damage was quantified by measurement of malondialdehyde tissue levels. The expression of E-cadherin and ?-catenin was identified by immunohistochemistry, and its contents were quantified by computer-assisted image analysis. RESULTS Sucralfate enemas reduced inflammation in animals subjected to treatment with 2 g/kg/day by four weeks, and the levels of oxidative damage in mucosa without fecal stream irrespective of concentration and time of intervention. E-cadherin and ?-catenin content increased in segments without fecal stream in those animals subjected to treatment with sucralfate. CONCLUSIONS Sucralfate reduces the inflammation and oxidative stress and increases the tissue content of E-cadherin and ?-catenin in colonic mucosa devoid to the fecal stream.
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58
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Ashwin K, Pattanaik AK, Howarth GS. Polyphenolic bioactives as an emerging group of nutraceuticals for promotion of gut health: A review. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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59
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Chlorogenic acid supplementation alleviates dextran sulfate sodium (DSS)-induced colitis via inhibiting inflammatory responses and oxidative stress, improving gut barrier integrity and Nrf-2/HO-1 pathway. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104808] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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60
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Wan F, Han H, Zhong R, Wang M, Tang S, Zhang S, Hou F, Yi B, Zhang H. Dihydroquercetin supplement alleviates colonic inflammation potentially through improved gut microbiota community in mice. Food Funct 2021; 12:11420-11434. [PMID: 34673859 DOI: 10.1039/d1fo01422f] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The purpose of the current study was to investigate the effect of dietary dihydroquercetin (DHQ) supplementation on dextran sodium sulfate (DSS)-induced colitis in mice. Mice were given DHQ supplementation (3 g kg-1) throughout the study, starting 14 days prior to DSS treatment for 1 week followed by 2 days without DSS. The results showed that dietary DHQ supplementation restored DSS-induced disease activity index (DAI), colon length and histopathology scores of the colon tissue. Additionally, supplementation with DHQ reduced the pro-inflammatory cytokine levels, and enhanced the level of IL-10 in the serum. qPCR results indicated that DHQ supplementation significantly downregulated IL-1β, IL-6, and TNF-α, and upregulated IL-10 gene mRNA expression. Western blot results proved that DHQ supplementation upregulated ZO-1 and occludin levels. Using amplicon sequencing technology, 16S rRNA sequencing results showed that DHQ supplementation increased the fecal Firmicutes/Bacteroidetes ratio and the relative abundance of Lactobacillus and Dubosiella, and decreased the relative abundance of Bacteroidetes. Additionally, DHQ supplementation restored the decreased fecal acetic acid and butyric acid concentrations in DSS-induced colitis mice. Besides, Spearman's correlation analysis showed that Dubosiella was positively correlated with the butyric acid level and Bacteroidetes was positively correlated with the mRNA expression of IL-1β and IL-6. Both Lactobacillus and Dubosiella showed a negative correlation with the mRNA expression of IL-1β, IL-6, and TNF-α, and Dubosiella was positively correlated with IL-10. In summary, it was found that DHQ supplementation alleviated DSS-induced colitis which may be potentially associated with altered fecal microbiota communities in mice.
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Affiliation(s)
- Fan Wan
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. .,State Key Laboratory of Grassland Agro-Ecosystem, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
| | - Hui Han
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Ruqing Zhong
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Mengyu Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Shanlong Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Shunfen Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Fujiang Hou
- State Key Laboratory of Grassland Agro-Ecosystem, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
| | - Bao Yi
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. .,State Key Laboratory of Grassland Agro-Ecosystem, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
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Protective Effects of Selenium Nanoparticle-Enriched Lactococcus lactis NZ9000 against Enterotoxigenic Escherichia coli K88-Induced Intestinal Barrier Damage in Mice. Appl Environ Microbiol 2021; 87:e0163621. [PMID: 34524898 DOI: 10.1128/aem.01636-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Composite microecological agents have received widespread attention due to their advantageous properties, including safety, multiple effects, and low cost. This study was conducted to evaluate the protective effects of selenium (Se) nanoparticle (SeNP)-enriched Lactococcus lactis NZ9000 (L. lactis NZ9000-SeNPs) against enterotoxigenic Escherichia coli (ETEC) K88-induced intestinal barrier damage in C57BL/6 mice. The oral administration of L. lactis NZ9000-SeNPs significantly increased the villus height and the number of goblet cells in the ileum; reduced the levels of serum and ileal interleukin-1β (IL-1β), tumor necrosis factor alpha (TNF-α), and interferon gamma (IFN-γ); and increased the activities of thioredoxin reductase (TrxR) and glutathione peroxidase (GSH-Px) compared with the ETEC K88-infected group not treated with L. lactis NZ9000-SeNPs. In addition, L. lactis NZ9000-SeNPs significantly attenuated the reduction of the expression levels of occludin and claudin-1, dysbiosis of the gut microbiome, and activation of the Toll-like receptor (TLR)/nuclear factor kappa B (NF-κB)-mediated signaling pathway induced by ETEC K88. These findings suggested that L. lactis NZ9000-SeNPs may be a promising and safe Se supplement for food or feed additives. IMPORTANCE The beneficial effects of microecological agents have been widely proven. Se, which is a nutritionally essential trace element for humans and animals, is incorporated into selenoproteins that have a wide range of pleiotropic effects, ranging from antioxidant to anti-inflammatory effects. However, sodium selenite, a common addition form of Se in feed and food, has disadvantages such as strong toxicity and low bioavailability. We investigated the protective effects of L. lactis NZ9000-SeNPs against ETEC K88-induced intestinal barrier injury in C57BL/6 mice. Our results show that L. lactis NZ9000-SeNPs effectively alleviate ETEC K88-induced intestinal barrier dysfunction. This study highlights the importance of developing a promising and safe Se supplement for the substitution of sodium selenite applied in food, feed, and biomedicine.
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Wang B, Jin YX, Dong JL, Xiao HW, Zhang SQ, Li Y, Chen ZY, Yang XD, Fan SJ, Cui M. Low-Intensity Exercise Modulates Gut Microbiota to Fight Against Radiation-Induced Gut Toxicity in Mouse Models. Front Cell Dev Biol 2021; 9:706755. [PMID: 34746120 PMCID: PMC8566984 DOI: 10.3389/fcell.2021.706755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022] Open
Abstract
Radiation-induced gastrointestinal (GI) tract toxicity halts radiotherapy and degrades the prognosis of cancer patients. Physical activity defined as “any bodily movement produced by skeletal muscle that requires energy expenditure” is a beneficial lifestyle modification for health. Here, we investigate whether walking, a low-intensity form of exercise, could alleviate intestinal radiation injury. Short-term (15 days) walking protected against radiation-induced GI tract toxicity in both male and female mice, as judged by longer colons, denser intestinal villi, more goblet cells, and lower expression of inflammation-related genes in the small intestines. High-throughput sequencing and untargeted metabolomics analysis showed that walking restructured the gut microbiota configuration, such as elevated Akkermansia muciniphila, and reprogramed the gut metabolome of irradiated mice. Deletion of gut flora erased the radioprotection of walking, and the abdomen local irradiated recipients who received fecal microbiome from donors with walking treatment exhibited milder intestinal toxicity. Oral gavage of A. muciniphila mitigated the radiation-induced GI tract injury. Importantly, walking did not change the tumor growth after radiotherapy. Together, our findings provide novel insights into walking and underpin that walking is a safe and effective form to protect against GI syndrome of patients with radiotherapy without financial burden in a preclinical setting.
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Affiliation(s)
- Bin Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Yu-Xiao Jin
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Anesthesiology, Changshu No. 2 People's Hospital, Changshu, China
| | - Jia-Li Dong
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Hui-Wen Xiao
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Shu-Qin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Yuan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Zhi-Yuan Chen
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Xiao-Dong Yang
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Sai-Jun Fan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Ming Cui
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
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Haq S, Wang H, Grondin J, Banskota S, Marshall JK, Khan II, Chauhan U, Cote F, Kwon YH, Philpott D, Brumell JH, Surette M, Steinberg GR, Khan WI. Disruption of autophagy by increased 5-HT alters gut microbiota and enhances susceptibility to experimental colitis and Crohn's disease. SCIENCE ADVANCES 2021; 7:eabi6442. [PMID: 34739317 PMCID: PMC8570609 DOI: 10.1126/sciadv.abi6442] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Autophagy, an essential intracellular recycling process, is linked to the pathogenesis of various diseases including Crohn’s disease (CD). Factors that lead to the development of impaired autophagy during intestinal inflammation remain largely unexplored. Here, we report the impact of the interaction between serotonin [5-hydroxytryptamine;(5-HT)] and autophagy in colitis in mouse and human studies. In mice, increased gut 5-HT inhibited autophagy and led to enhanced colitis susceptibility. Reciprocally, mice with reduced 5-HT exhibited up-regulated autophagy via the mammalian target of rapamycin pathway, which resulted in significantly decreased colitis. Deletion of autophagy gene, Atg7, in an epithelial-specific manner, in concert with reduced 5-HT, promoted the development of a colitogenic microbiota and abolished the protective effects conferred by reduced 5-HT. Notably, in control and patient peripheral blood mononuclear cells, we uncovered that 5-HT treatment inhibited autophagy. Our findings suggest 5-HT as a previously unidentified therapeutic target in intestinal inflammatory disorders such as CD that exhibits dysregulated autophagy.
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Affiliation(s)
- Sabah Haq
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Huaqing Wang
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Jensine Grondin
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Suhrid Banskota
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - John K. Marshall
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Irfan I. Khan
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Usha Chauhan
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Hamilton Health Sciences, Hamilton, Ontario, Canada
| | - Francine Cote
- Institut Cochin, INSERM U1016, CNRS UMR 8104, Paris, France
| | - Yun Han Kwon
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Dana Philpott
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - John H. Brumell
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Ontario and Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Michael Surette
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Gregory R. Steinberg
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
- Centre for Metabolism Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada
| | - Waliul I. Khan
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
- Hamilton Health Sciences, Hamilton, Ontario, Canada
- Centre for Metabolism Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada
- Corresponding author.
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64
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Si X, Liu N, Jia H, Wang J, Pan L, Dong L, Rong Z, Yang Y, Wu Z. Gut relief formula attenuates dextran sulfate sodium-induced colitis by regulating NF-κB signaling and the intestinal microbiota in mice. Food Funct 2021; 12:10983-10993. [PMID: 34652352 DOI: 10.1039/d1fo01477c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background. Inflammatory bowel disease (IBD) is a chronic relapsing disorder of the gastrointestinal tract. The nutrition care gut relief formula (GR), a combination of natural products and nutrients, has been shown to benefit gastrointestinal health. However, the underlying mechanism responsible for this effect is incompletely defined. Objective. This study was conducted to evaluate the hypothesis that GR could attenuate dextran sulfate sodium (DSS)-induced colitis by enhancing intestinal mucosal immunity and regulating intestinal microflora in mice. Methods. Six-week-old C57BL/6J mice orally administered with GR (7.5 mg per mouse per day) or an equal volume of vehicle were treated with sterile water or 2.5% DSS for 6 days to induce colitis. Histological damage, inflammatory cell infiltration, and colonic microbiome community were analyzed to evaluate the beneficial effect of GR. Results. GR administration ameliorated the severity of colitis as evidenced by reduced body weight loss, decreased colon shortening, reduced myeloperoxidase (MPO) activity, inhibited proinflammatory cytokine secretion, and decreased histological damage in DSS-challenged mice. Additionally, enhancement of malondialdehyde (MDA) and hydrogen peroxide (H2O2) in response to DSS was attenuated by GR administration. Meanwhile, DSS treatment resulted in reduction of the glutathione (GSH) level and tight junction protein abundance, as compared with the controls. Of note, these adverse effects were remarkably eliminated by GR administration. Further study showed that the protective effect of GR was associated with the inhibited activation of STAT3 and NF-κB signaling pathways, as well as upregulated abundances of Lactobacillus in the colon tissues of mice. Conclusion. Collectively, the data provided herein demonstrated that GR administration alleviated intestinal mucosal inflammation and mucosal barrier dysfunction. These beneficial effects were associated with inhibited activation of STAT3 and NF-κB signaling pathways, as well as upregulated abundances of Lactobacillus in the colon tissues of mice.
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Affiliation(s)
- Xuemeng Si
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China.
| | - Ning Liu
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China. .,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing, 100193, China
| | - Hai Jia
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China.
| | - Jiaqi Wang
- Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co. Ltd, Changsha 410200, Hunan, China
| | - Lina Pan
- Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co. Ltd, Changsha 410200, Hunan, China
| | - Ling Dong
- Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co. Ltd, Changsha 410200, Hunan, China
| | - Zhixing Rong
- Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co. Ltd, Changsha 410200, Hunan, China
| | - Ying Yang
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China.
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China. .,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing, 100193, China
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65
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Zhang Y, Wang O, Ma N, Yi J, Mi H, Cai S. The preventive effect and underlying mechanism of Rhus chinensis Mill. fruits on dextran sulphate sodium-induced ulcerative colitis in mice. Food Funct 2021; 12:9965-9978. [PMID: 34494061 DOI: 10.1039/d1fo01558c] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The purpose of this research was to explore the preventive effect of an 80% ethanol extract of Rhus chinensis Mill. fruits on dextran sulfate sodium (DSS)-induced colitis in mice and to elucidate the underlying molecular mechanisms of this effect. The results indicated that the extract, especially when administered at a high dose, could dramatically decrease the disease activity index, maintain normal spleen conditions, and improve colonic histopathology and length in the DSS-induced mice. In addition, extract administration could significantly suppress the levels of malondialdehyde, myeloperoxidase, tumor necrosis factor-α, interleukin-1β, and interleukin-6 and enhance superoxide dismutase and glutathione levels. The extract obviously protected intestinal barrier integrity by improving Occludin, ZO-1 and Claudin-1 expression levels. Western blot and immunohistochemistry analyses further indicated that the preventive effect of the phenol-rich extract on DSS-induced colitis might be achieved through the up-regulation of the expression of several pivotal oxidative stress-associated proteins, namely Nrf2, NQO1 and HO-1, and the down-regulation of the expression of several pivotal inflammation-associated proteins, namely p-NF-κB, p-IκB, COX-2, iNOS, p-P38, p-Erk1/2, and p-JNK. Therefore, R. chinensis fruits extract possesses the capability to prevent DSS-induced ulcerative colitis in mice and could be utilized as a natural substance in the exploitation of functional foods as an adjuvant dietary therapy for preventing and/or alleviating inflammatory bowel disease.
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Affiliation(s)
- Yi Zhang
- Faculty of Agriculture and Food, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
| | - Ou Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing, 100050, People's Republic of China
| | - Nan Ma
- Faculty of Agriculture and Food, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
| | - Junjie Yi
- Faculty of Agriculture and Food, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
| | - Hongying Mi
- The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, 650032, People's Republic of China.
| | - Shengbao Cai
- Faculty of Agriculture and Food, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
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Chen S, Wu X, Tang S, Yin J, Song Z, He X, Yin Y. Eugenol Alleviates Dextran Sulfate Sodium-Induced Colitis Independent of Intestinal Microbiota in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:10506-10514. [PMID: 34478286 DOI: 10.1021/acs.jafc.1c00917] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The present study investigated the effect of eugenol (EUG) on dextran sulfate sodium (DSS)-induced colitis and explored the underlying mechanisms. C57BL/6 mice were intragastrically administered normal saline or EUG (20 mg/kg body weight) for 17 days, and colitis was induced by using 3% DSS from day 7. The results showed that EUG increased the body weight and reduced the disease activity index score and colon pathological scores in DSS-treated mice (P < 0.05). Further, EUG preserved the proinflammatory cytokines (interleukin (IL)-6, -12, -21, and -23), lowered (P < 0.05) colonic malondialdehyde (MDA), uncoupling protein 2 (UCP2) expression and p65 phosphorylation, and activated (P < 0.05) colonic kelch-like ECH-associated protein 1 and nuclear factor (erythroid-derived 2)-like 2 expressions but did not affect the intestinal microbiota in DSS-treated mice. Furthermore, EUG ameliorated colitis in antibiotic-treated mice, while fecal microbiota transplantation from EUG preadministered mice failed to ameliorate colitis. In conclusion, EUG could alleviate colitis by attenuating colonic inflammation and oxidative stress independent of intestinal microbiota.
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Affiliation(s)
- Shuai Chen
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Xin Wu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Shengguo Tang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Jie Yin
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Zehe Song
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Xi He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Yulong Yin
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
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The Regulatory Effects of Licochalcone A on the Intestinal Epithelium and Gut Microbiota in Murine Colitis. Molecules 2021; 26:molecules26144149. [PMID: 34299424 PMCID: PMC8304238 DOI: 10.3390/molecules26144149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 12/31/2022] Open
Abstract
The gut epithelium is a mechanical barrier that protects the host from the luminal microenvironment and interacts with the gut microflora, which influences the development and progression of ulcerative colitis (UC). Licochalcone A (LA) exerts anti-inflammatory effects against UC; however, whether it also regulates both the gut barrier and microbiota during colitis is unknown. The current study was conducted to reveal the regulatory effects of LA on the intestinal epithelium and gut microflora in C57BL/6 mice subjected to dextran sodium sulfate (DSS). Sulfasalazine (SASP) was used as the positive control. Results of clinical symptoms evaluation, hematoxylin, and eosin (H&E) staining, and enzyme-linked immunosorbent (ELISA) assays showed that LA significantly inhibited DSS-induced weight loss, disease activity index (DAI) increase, histological damage, and gut inflammation. Additionally, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and immunohistochemical (IHC) analysis showed that LA maintained the integrity of the intestinal barrier by suppressing cell apoptosis and preserving the expression of tight junction (TJ) proteins. Notably, the optimal dose of LA for gut barrier preservation was low, while that for anti-inflammatory effects was high, indicating that LA might preserve gut barrier integrity via direct effects on the epithelial cells (ECs) and TJ proteins. Furthermore, 16S rRNA analysis suggested that the regulatory effect of LA on the gut microbiota differed distinctly according to dose. Correlation analysis indicated that a low dose of LA significantly modulated the intestinal barrier-associated bacteria as compared with a moderate or high dose of LA. Western blot (WB) analysis indicated that LA exhibited anti-UC activity partly by blocking the mitogen-activated protein kinase (MAPK) pathway. Our results further elucidate the pharmacological activity of LA against UC and will provide valuable information for future studies regarding on the regulatory effects of LA on enteric diseases.
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Mahmoud TN, El-Maadawy WH, Kandil ZA, Khalil H, El-Fiky NM, El Alfy TSMA. Canna x generalis L.H. Bailey rhizome extract ameliorates dextran sulfate sodium-induced colitis via modulating intestinal mucosal dysfunction, oxidative stress, inflammation, and TLR4/ NF-ҡB and NLRP3 inflammasome pathways. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113670. [PMID: 33301917 DOI: 10.1016/j.jep.2020.113670] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/15/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Genus Canna is used in folk medicine as demulcent, diaphoretic, antipyretic, mild laxative and in gastrointestinal upsets therapy. Canna x generalis (CG) L.H. Bailey is traditionally used as anti-inflammatory, analgesic and antipyretic. Besides, CG is used in Ayurvedic medicines' preparations and in the treatment of boils, wounds, and abscess. Nevertheless, its anti-inflammatory effects against ulcerative colitis (UC) are not yet investigated. AIM This study aimed to investigate the phytoconstituents of CG rhizome ethanol extract (CGE). Additionally, we aimed to comparatively evaluate its therapeutic effects and underlying mechanisms against the reference drug "sulphasalazine (SAS)" in dextran sodium sulfate (DSS)-induced UC in mice. MATERIAL AND METHODS Metabolic profiling of CG rhizomes was performed via UHPLC/qTOF-HRMS; the total phenolic, flavonoid and steroid contents were determined, and the main phytoconstituents were isolated and identified. Next, DSS-induced (4%) acute UC was established in C57BL/6 mice. DSS-induced mice were administered either CGE (100 and 200 mg/kg) or SAS (200 mg/kg) for 7 days. Body weight, colon length, disease activity index (DAI) and histopathological alterations in colon tissues were examined. Colon levels of oxidative stress (GSH, MDA, SOD and catalase) and pro-inflammatory [Myeloperoxidase (MPO), nitric oxide (NO), IL-1β, IL-12, TNF-α, and INF-γ] markers were colourimetrically determined. Serum levels of lipopolysaccharide (LPS) and relative mRNA expressions of occludin, TLR4 and ASC (Apoptosis-Associated Speck-Like Protein Containing CARD) using RT-PCR were measured. Protein levels of NLRP3 inflammasome and cleaved caspase-1 were determined by Western blot. Furthermore, immunohistochemical examinations of caspase-3, NF-ҡB and claudin-1 were performed. RESULTS Major identified constituents of CGE were flavonoids, phenolic acids, phytosterols, beside five isolated phytoconstituents (β-sitosterol, triacontanol fatty alcohol, β-sitosterol-3-O-β-glucoside, rosmarinic acid, 6-O-p-coumaroyl-β-D-fructofuranosyl α-D-glucopyranoside). The percentage of the phenolic, flavonoid and steroid contents in CGE were 20.55, 6.74 and 98.09 μg of gallic acid, quercetin and β-sitosterol equivalents/mg extract, respectively. In DSS-induced mice, CGE treatment ameliorated DAI, body weight loss and colon shortening. CGE attenuated the DSS-induced colonic histopathological alternations, inflammatory cell infiltration and histological scores. CGE elevated GSH, SOD and catalase levels, and suppressed MDA, pro-inflammatory mediators (MPO and NO) as well as cytokines levels in colonic tissues. Moreover, CGE downregulated LPS/TLR4 signaling, caspase-3 and NF-ҡB expressions. CGE treatment inhibited NLRP3 signaling pathway as indicated by the suppression of the protein expression of NLRP3 and cleaved caspase-1, and the ASC mRNA expression in colonic tissues. Additionally, CGE restored tight junction proteins' (occludin and claudin-1) expressions. CONCLUSION Our findings provided evidence for the therapeutic potential of CGE against UC. CGE restored intestinal mucosal barrier's integrity, mitigated oxidative stress, inflammatory cascade, as well as NF-ҡB/TLR4 and NLRP3 pathways activation in colonic tissues. Notably, CGE in a dose of 200 mg/kg was more effective in ameliorating DSS-induced UC as compared to SAS at the same dose.
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Affiliation(s)
- Toka N Mahmoud
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr Al Aini Street, Cairo, P.O. Box 11562, Egypt.
| | - Walaa H El-Maadawy
- Department of Pharmacology, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba (P.O. 30), Giza, 12411, Egypt.
| | - Zeinab A Kandil
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr Al Aini Street, Cairo, P.O. Box 11562, Egypt
| | - Heba Khalil
- Department of Pathology, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba (P.O. 30), Giza, 12411, Egypt
| | - Nabaweya M El-Fiky
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr Al Aini Street, Cairo, P.O. Box 11562, Egypt
| | - Taha Shahat M A El Alfy
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr Al Aini Street, Cairo, P.O. Box 11562, Egypt
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Pistol GC, Bulgaru CV, Marin DE, Oancea AG, Taranu I. Dietary Grape Seed Meal Bioactive Compounds Alleviate Epithelial Dysfunctions and Attenuates Inflammation in Colon of DSS-Treated Piglets. Foods 2021; 10:foods10030530. [PMID: 33806347 PMCID: PMC7999447 DOI: 10.3390/foods10030530] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 12/12/2022] Open
Abstract
Inflammatory Bowel Diseases (IBD) are chronic inflammations associated with progressive degradation of intestinal epithelium and impairment of the local innate immune response. Restoring of epithelial integrity and of the mucosal barrier function, together with modulation of inflammatory and innate immune markers, represent targets for alternative strategies in IBD. The aim of our study was to evaluate the effects of a diet including 8% grape seed meal (GSM), rich in bioactive compounds (polyphenols, polyunsaturated fatty acids (PUFAs), fiber) on the markers of colonic epithelial integrity, mucosal barrier function, pro-inflammatory, and innate immunity in DSS-treated piglets used as animal models of intestinal inflammation. Our results have demonstrated the beneficial effects of bioactive compounds from dietary GSM, exerted at three complementary levels: (a) restoration of the epithelial integrity and mucosal barrier reinforcement by modulation of claudins, Occludin (OCCL) and Zonula-1 (ZO-1) tight junction genes and proteins, myosin IXB (MYO9B) and protein tyrosine phosphatase (PTPN) tight junction regulators and mucin-2 (MUC2) gene; (b) reduction of pro-inflammatory MMP-2 (matrix metalloproteinase-2) and MMP-9 (matrix metalloproteinase-9) genes and activities; and (c) suppression of the innate immune TLR-2 (Toll-like receptor-2) and TLR-4 (Toll-like receptor-4) genes and attenuation of the expression of MyD88 (Myeloid Differentiation Primary Response 88)/MD-2 (Myeloid differentiation factor-2) signaling molecules. These beneficial effects of GSM could further attenuate the transition of chronic colitis to carcinogenesis, by modulating the in-depth signaling mediators belonging to the Wnt pathway.
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Affiliation(s)
- Gina Cecilia Pistol
- Laboratory of Animal Biology, INCDBNA-IBNA, National Institute of Research and Development for Biology and Animal Nutrition, 077015 Balotesti, Romania; (C.V.B.); (D.E.M.); (I.T.)
- Correspondence: ; Tel.: +40-21-351-2082
| | - Cristina Valeria Bulgaru
- Laboratory of Animal Biology, INCDBNA-IBNA, National Institute of Research and Development for Biology and Animal Nutrition, 077015 Balotesti, Romania; (C.V.B.); (D.E.M.); (I.T.)
| | - Daniela Eliza Marin
- Laboratory of Animal Biology, INCDBNA-IBNA, National Institute of Research and Development for Biology and Animal Nutrition, 077015 Balotesti, Romania; (C.V.B.); (D.E.M.); (I.T.)
| | - Alexandra Gabriela Oancea
- Laboratory of Chemistry and Nutrition Physiology, INCDBNA-IBNA, National Institute of Research and Development for Biology and Animal Nutrition, 077015 Balotesti, Romania;
| | - Ionelia Taranu
- Laboratory of Animal Biology, INCDBNA-IBNA, National Institute of Research and Development for Biology and Animal Nutrition, 077015 Balotesti, Romania; (C.V.B.); (D.E.M.); (I.T.)
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