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Xu N, Yu P, Zhang H, Ji X, Wu P, Zhang L, Wang X. Effects of Laminaria japonica polysaccharide and coumaric acid on pasting, rheological, retrogradation and structural properties of corn starch. Int J Biol Macromol 2024; 263:130343. [PMID: 38401582 DOI: 10.1016/j.ijbiomac.2024.130343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 01/17/2024] [Accepted: 02/19/2024] [Indexed: 02/26/2024]
Abstract
The aim of this study was to investigate the effects of Laminaria japonica polysaccharide (LJP) and coumaric acid (CA) on pasting, rheological, retrogradation and structural properties of corn starch (CS). Rapid viscosity analysis (RVA) revealed that LJP significantly increased the peak viscosity, trough viscosity, final viscosity, and setback viscosity of CS gel (p < 0.05) in a concentration-dependent manner. The addition of LJP and CA simultaneously caused the pasting of CS to need a greater temperature (from 75.53 °C to 78.75 °C), suggesting that LJP and CA made CS pasting more difficult. Dynamic viscoelasticity measurements found that all gels exhibited typical characteristics of weak gel. When compared to CS gel, 4 % LJP increased the viscosity and fluidity of gel and the simultaneous addition of LJP and CA reduced the elasticity. The steady shear results showed that the all gels were pseudoplastic fluids with shear-thinning behavior. In the meanwhile, the addition of LJP and CA enhanced the pseudoplasticity of CS-LJP-CA gel and improved its shear thinning. Furthermore, thermodynamic results showed that 8 % LJP promoted the retrogradation of CS gel and 2.0 % CA delayed the retrogradation of CS gel. Notably, on the 7th day of retrogradation, 2.0 % CA significantly decreased the retrogradation rate of CS-LJP by 19.31 % as compared to CS + 8 % LJP. Microstructure observation revealed that LJP made the honeycomb network structure of CS gel partially collapsed, and the surface of CS-LJP gel developed venation. Nevertheless, the structure of CS-LJP gel was clearly enhanced by adding CA. FT-IR spectra demonstrated that the addition of LJP or CA to CS did not result in the formation of a new distinctive peak in the system, suggesting the absence of a new group. Moreover, LF-NMR findings showed that LJP and CA strengthened the gel structure of CS and enhanced its capacity to retain water. This study not only provided a new insight into using LJP and CA to regulate the gel properties of CS, but also provided scientific strategy for developing starchy foods.
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Affiliation(s)
- Ning Xu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100038, People's Republic of China
| | - Pei Yu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100038, People's Republic of China
| | - Hui Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100038, People's Republic of China
| | - Xiaoyu Ji
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100038, People's Republic of China
| | - Penghao Wu
- College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, People's Republic of China
| | - Lei Zhang
- College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi 830052, People's Republic of China.
| | - Xiao Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100038, People's Republic of China.
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Han SH, Lee HD, Lee S, Lee AY. Taraxacum coreanum Nakai extract attenuates lipopolysaccharide-induced inflammatory responses and intestinal barrier dysfunction in Caco-2 cells. J Ethnopharmacol 2024; 319:117105. [PMID: 37660957 DOI: 10.1016/j.jep.2023.117105] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Taraxacum coreanum Nakai (TC) is a dandelion native to Korea that has long been used as a medicinal herb with antioxidant and anti-inflammatory properties. Intestinal inflammation is closely associated with intestinal epithelial barrier disruption, which leads to the progression of various intestinal diseases. AIM OF THE STUDY The aim of this study was to investigate the protective effects of TC extract on inflammatory responses and intestinal barrier dysfunction in lipopolysaccharide (LPS)-stimulated Caco-2 cells. MATERIALS AND METHODS The inhibitory effect of TC on nitric oxide (NO) and pro-inflammatory cytokines production were determined by Griess reagent and enzyme-linked immunosorbent assay, respectively. The epithelial permeability was evaluated by transepithelial electrical resistance (TEER) assay, and inflammation- and tight junction (TJ)-related protein expression were analyzed by Western blotting. In addition, the presence of ten active compounds was identified and quantified using UHPLC-ESI-MS and HPLC-DAD analyses. RESULTS Treatment with TC significantly reduced NO production and pro-inflammatory cytokines production [interleukin (IL)-6 and tumor necrosis factor (TNF)-α] compared to the group treated with LPS only, particularly at 100 μg/mL. TC significantly decreased monolayer permeability as detected by TEER. In addition, the transmission of fluorescein isothiocyanate-dextran 4 across the barrier was decreased after treatment with TC. Inflammation-related proteins (inducible NO synthase, cyclooxygenase-2, TNF-α, IL-6, and IL-1β) were down-regulated after treatment with TC. In contrast, TC significantly increased the protein levels of the TJ-related protein, claudin-5. Ten phytochemicals (protocatechuic acid, chlorogenic acid, caffeic acid, scopoletin, chicoric acid, hyperoside, nicotiflorin, luteoloside, sophoricoside, and luteolin) were identified by UHPLC-ESI-MS and HPLC-DAD analysis. CONCLUSION Our findings suggest that ethanolic extract of TC could attenuate the LPS-induced intestinal barrier dysfunction by increasing the TJ protein and suppressing inflammatory responses.
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Affiliation(s)
- Seok Hee Han
- Department of Food Science, Gyeongsang National University, Jinju, 52725, Republic of Korea.
| | - Hak-Dong Lee
- Department of Plant Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea.
| | - Sanghyun Lee
- Department of Plant Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea; Natural Product Institute of Science and Technology, Anseong, 17546, Republic of Korea.
| | - Ah Young Lee
- Department of Food Science, Gyeongsang National University, Jinju, 52725, Republic of Korea.
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Kok JML, Dowd GC, Cabral JD, Wise LM. Macrocystis pyrifera Lipids Reduce Cytokine-Induced Pro-Inflammatory Signalling and Barrier Dysfunction in Human Keratinocyte Models. Int J Mol Sci 2023; 24:16383. [PMID: 38003573 PMCID: PMC10671590 DOI: 10.3390/ijms242216383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
Atopic dermatitis is a chronic condition where epidermal barrier dysfunction and cytokine production by infiltrating immune cells exacerbate skin inflammation and damage. A total lipid extract from Macrocystis pyrifera, a brown seaweed, was previously reported to suppress inflammatory responses in monocytes. Here, treatment of human HaCaT keratinocytes with M. pyrifera lipids inhibited tumour necrosis factor (TNF)-α induced TNF receptor-associated factor 2 and monocyte chemoattractant protein (MCP)-1 protein production. HaCaT cells stimulated with TNF-α, interleukin (IL)-4, and IL-13 showed loss of claudin-1 tight junctions, but little improvement was observed following lipid pre-treatment. Three-dimensional cultures of HaCaT cells differentiated at the air-liquid interface showed increased MCP-1 production, loss of claudin-1 tight junctions, and trans-epidermal leakage with TNF-α, IL-4, and IL-13 stimulation, with all parameters reduced by lipid pre-treatment. These findings suggest that M. pyrifera lipids have anti-inflammatory and barrier-protective effects on keratinocytes, which may be beneficial for the treatment of atopic dermatitis or other skin conditions.
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Affiliation(s)
- Jamie M. L. Kok
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin 9054, New Zealand;
| | - Georgina C. Dowd
- The New Zealand Institute for Plant and Food Research Limited, Nelson 7043, New Zealand;
| | - Jaydee D. Cabral
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9054, New Zealand;
| | - Lyn M. Wise
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin 9054, New Zealand;
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Baek SM, Kim TU, Lee YJ, Lee SW, Yim JH, Kim WJ, Kim HY, Kang KK, Kim SD, Park SJ, Choi SK, Park JK. Disrupted intestinal mucosal barrier mediated by alcohol consumption aggravates systemic microplastic accumulation. Ecotoxicol Environ Saf 2023; 262:115342. [PMID: 37567104 DOI: 10.1016/j.ecoenv.2023.115342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Waste plastics are degraded into microplastics (MPs), which are easily accumulated in the human body through digestive tracts, via the food chain. Alcohol is a widely consumed chemical throughout the world with the ability to alter the intestinal barrier. For this reason, this study was aimed to investigate exact relevance between alcohol consumption and organ distributions of MPs in an ethanol feeding animal model characterized by disrupted intestinal mucosal barriers. In this study, C57BL/6 mice were separated into control, control + MP, ethanol (EtOH), and EtOH + MP groups. Mice in the EtOH group ingested a Lieber-DeCarli diet containing EtOH. Mice in the MP groups ingested 0.1 mg/kg fluorophore polymerized polystyrene microplastics via oral gavage polystyrene MPs via oral gavage. The EtOH + MP group showed higher MP accumulation in the liver than the control + MP group. The same pattern was observed in the intestines, spleen, and brain. This pattern was more prominent in the intestines, with the EtOH + MP group showing the most severe damage due to EtOH ingestion. This result suggests that the intestinal mucosa disruption caused by EtOH ingestion exacerbates MP accumulation in the organs. Moreover, hepatic steatosis was more severe in the EtOH + MP group than in the EtOH group, suggesting the secondary manifestation mediated by MP accumulation. This study reports a novel MP accumulation pattern in the body by providing novel insights into alcohol-induced gut permeability and microplastics toxicity from the perspective of gut-liver axis.
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Affiliation(s)
- Su-Min Baek
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Cardiovascular Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Tae-Un Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Young-Jin Lee
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seoung-Woo Lee
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Jae-Hyuk Yim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Woo Jun Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hee-Yeon Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Kyung-Ku Kang
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41016, Republic of Korea
| | - Sung Dae Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seong-Kyoon Choi
- Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
| | - Jin-Kyu Park
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea.
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Adams JRG, Mehat J, La Ragione R, Behboudi S. Preventing bacterial disease in poultry in the post-antibiotic era: a case for innate immunity modulation as an alternative to antibiotic use. Front Immunol 2023; 14:1205869. [PMID: 37469519 PMCID: PMC10352996 DOI: 10.3389/fimmu.2023.1205869] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 06/12/2023] [Indexed: 07/21/2023] Open
Abstract
The widespread use of antibiotics in the poultry industry has led to the emergence of antibiotic-resistant bacteria, which pose a significant health risk to humans and animals. These public health concerns, which have led to legislation limiting antibiotic use in animals, drive the need to find alternative strategies for controlling and treating bacterial infections. Modulation of the avian innate immune system using immunostimulatory compounds provides a promising solution to enhance poultry immune responses to a broad range of bacterial infections without the risk of generating antibiotic resistance. An array of immunomodulatory compounds have been investigated for their impact on poultry performance and immune responses. However, further research is required to identify compounds capable of controlling bacterial infections without detrimentally affecting bird performance. It is also crucial to determine the safety and effectiveness of these compounds in conjunction with poultry vaccines. This review provides an overview of the various immune modulators known to enhance innate immunity against avian bacterial pathogens in chickens, and describes the mechanisms involved.
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Affiliation(s)
- James R. G. Adams
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Avian Immunology, The Pirbright Institute, Woking, United Kingdom
| | - Jai Mehat
- School of Biosciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Roberto La Ragione
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- School of Biosciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
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Lu K, Liu L, Lin P, Dong X, Ni L, Che H, Xie W. Saccharina japonica Ethanol Extract Ameliorates Dextran Sulfate Sodium-Induced Colitis via Reshaping Intestinal Microenvironment and Alleviating Inflammatory Response. Foods 2023; 12:foods12081671. [PMID: 37107466 PMCID: PMC10138103 DOI: 10.3390/foods12081671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 04/29/2023] Open
Abstract
Saccharina japonica belongs to brown macro-alga with various potential health benefits; its antioxidant and anti-inflammatory activities indicate the potential to improve inflammatory bowel diseases. Here, the potential anti-colitis effect of Saccharina japonica extract (SJE) was evaluated on dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) in C57B/L6 mice. The mice were treated with mesalazine (MES) and various doses of SJE by gavage for 14 days. Results showed that both MES and SJE treatment decreased the disease activity index scores, relieving the short colon. SJE increased the occludin and zonula occludens-1 levels, and the beneficial effects were better than MES. MES and SJE exerted similar effects in decreasing inflammatory cytokines and oxidative stress. Moreover, SJE reshaped the intestinal microbiota by increasing α-diversity and reducing plenty of harmful bacteria. Dietary SJE was significant to relieving the reduction in short-chain fatty acids. The results revealed the protective effect of SJE on colitis and potential mechanisms, which is important for the rational use of SJE in UC prevention.
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Affiliation(s)
- Kuan Lu
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Qingdao Keda Future Biotechnology Co., Ltd., Qingdao 266042, China
| | - Lin Liu
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Pengcheng Lin
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiufang Dong
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
- Linyi Jinluo Wenrui Food Co., Linyi 276007, China
| | - Laixue Ni
- Linyi Jinluo Wenrui Food Co., Linyi 276007, China
| | - Hongxia Che
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Wancui Xie
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Qingdao Keda Future Biotechnology Co., Ltd., Qingdao 266042, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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7
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Liyanage NM, Nagahawatta DP, Jayawardena TU, Jeon YJ. The Role of Seaweed Polysaccharides in Gastrointestinal Health: Protective Effect against Inflammatory Bowel Disease. Life (Basel) 2023; 13:life13041026. [PMID: 37109555 PMCID: PMC10143107 DOI: 10.3390/life13041026] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a prominent global public health issue. Anti-inflammatory medications, immunosuppressants, and biological therapies are currently used as treatments. However, they are often unsuccessful and have negative consequences on human health. Thus, there is a tremendous demand for using natural substances, such as seaweed polysaccharides, to treat IBD's main pathologic treatment targets. The cell walls of marine algae are rich in sulfated polysaccharides, including carrageenan in red algae, ulvan in green algae, and fucoidan in brown algae. These are effective candidates for drug development and functional nutrition products. Algal polysaccharides treat IBD through therapeutic targets, including inflammatory cytokines, adhesion molecules, intestinal epithelial cells, and intestinal microflora. This study aimed to systematically review the potential therapeutic effects of algal polysaccharides on IBD while providing the theoretical basis for a nutritional preventive mechanism for IBD and the restoration of intestinal health. The results suggest that algal polysaccharides have significant potential in complementary IBD therapy and further research is needed for fully understanding their mechanisms of action and potential clinical applications.
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Affiliation(s)
- N M Liyanage
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - D P Nagahawatta
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - Thilina U Jayawardena
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G8Z 4M3, Canada
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
- Marine Science Institute, Jeju National University, Jeju 63333, Republic of Korea
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Siroli L, Giordani B, Rossi S, Gottardi D, Mcmahon H, Augustyniak A, Menon A, Vannini L, Vitali B, Patrignani F, Lanciotti R. Antioxidant and Functional Features of Pre-Fermented Ingredients Obtained by the Fermentation of Milling By-Products. Fermentation 2022; 8:722. [DOI: 10.3390/fermentation8120722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The use of milling by-products as ingredients in food formulations has increased gradually over the past years, due to their well-recognized health properties. Fermentation performed with selected microbial strains or microbial consortia is the most promising way to reduce antinutritional factors of cereals and bran, while increasing their nutritional and functional properties. This work, developed within the BBI project INGREEN, was aimed to study the functional, nutritional and technological features of a pre-fermented ingredient obtained from the fermentation of a mixture of rye bran and wheat germ by a selected microbial consortium composed of yeasts (Kazachstania unispora and Kazachstania servazii) and lactic acid bacteria (Latilactobacillus curvatus) using as reference the unfermented mixture and the same mixture fermented by a baker’s yeast. The selected microbial consortium improved the complexity of the volatile molecules such as acids, alcohols and esters. A better retention of color parameters was maintained compared to the product fermented by a baker’s yeast. In addition, the fermentation by the selected consortium showed a significant increase in short chain fatty acids (more than 5-fold), antioxidant activity (22–24%), total phenol content (53–71%), bioactive peptides (39–52%), a reduction of 20–28% in phytic acid content and an increase in prebiotic activity not only compared to the unfermented product but also compared to the preferment obtained with a baker’s yeast. Overall, the fermentation by the selected microbial consortium can be considered a valuable way to valorize milling by-products and promote their exploitation as food ingredients.
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Gong S, Zheng J, Zhang J, Wang Y, Xie Z, Wang Y, Han J. Taxifolin ameliorates lipopolysaccharide-induced intestinal epithelial barrier dysfunction via attenuating NF-kappa B/MLCK pathway in a Caco-2 cell monolayer model. Food Res Int 2022; 158:111502. [DOI: 10.1016/j.foodres.2022.111502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 06/05/2022] [Accepted: 06/09/2022] [Indexed: 11/23/2022]
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Park SK, Kang JY, Kim JM, Kim MJ, Lee HL, Moon JH, Jeong HR, Kim H, Chung M, Heo HJ. Porphyra tenera Protects against PM2.5-Induced Cognitive Dysfunction with the Regulation of Gut Function. Mar Drugs 2022; 20:439. [PMID: 35877732 PMCID: PMC9324924 DOI: 10.3390/md20070439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023] Open
Abstract
To evaluate the biological effects of Porphyra tenera (P. tenera), we tried to confirm the possibility that the intake of P. tenera could modulate cognitive and intestinal functions in PM2.5-induced cognitive decline mice. P. tenera attenuated PM2.5-induced learning and memory impairment through antioxidant and anti-inflammatory effects by regulating the mitochondrial function and TLR-initiated NF-κB signaling. In addition, P. tenera effectively alleviated Aβ production/tau phosphorylation by inhibiting the JNK phosphorylation. Also, the bioactive constituents of P. tenera determined the sulfated galactan, mycosporine-like amino acids (MAAs), and chlorophyll derivatives. Moreover, the bioactive compounds of P. tenera by gut fermentation protected against gut dysbiosis and intestinal tight junction damage with a decrease in inflammatory response and short-chain fatty acid production. Based on these results, our findings suggest that P. tenera with sulfated galactan and MAAs is a potential material for cognitive function improvement.
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Cui J, Wang Y, Kim E, Zhang C, Zhang G, Lee Y. Structural Characteristics and Immunomodulatory Effects of a Long-Chain Polysaccharide From Laminaria japonica. Front Nutr 2022; 9:762595. [PMID: 35419391 PMCID: PMC8996131 DOI: 10.3389/fnut.2022.762595] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 02/24/2022] [Indexed: 12/14/2022] Open
Abstract
Polysaccharides derived from Laminaria japonica (LJPS) have shown a variety of beneficial effects on improving human health; however, the structural features and bioactivities of long-chain LJPS remain unclear. This study aimed to investigate the structural characteristics and bioactivities of a novel long-chain LJPS. Results showed that the LJPS was composed of Fuc, Rha, Ara, Gal, Glc, Xyl, Man, Fru, Rib, GalA, GluA, GlcA, and ManA, with a molar ratio of 35.71:1.48:0.28:13.16:0.55:2.97:6.92:0.58:0.41:0.14:3.16:15.84:18.79. Of these, Fuc, Gal, Man, GlcA, and ManA were the predominant components with an accumulated proportion of 93.6%. The LJPS was found to consist of seven types of the monomer residues, and the main interchain glycosidic linkages were β -D-(1 → 2), α -D-(1 → 3), (1 → 4), and (1 → 6), and the molecular mass was 5.79 × 104 g/mol. Regarding the molecular conformation, LJPS was a multi-branched, long-chain macromolecule, and appeared in a denser crosslinking network with highly branched and helix domains in the terms of morphology. Additionally, the LJPS had no toxicity to mouse macrophage cells and exhibited biphasic immuno-modulating capacity. The present findings suggested that the long-chain LJPS might be an attractive candidate as an immunopotentiating and anti-inflammatory functional food, and this study also provides a feasible approach to decipher the structural characteristics and spatial conformations of plant-derived polysaccharides.
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Affiliation(s)
- Jiamei Cui
- Department of Food Science and Nutrition, Jeju National University, Jeju, South Korea
| | - Yunpeng Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Prevention, Department of Animal Nutrition, Shandong Agricultural University, Taian City, China
| | - Eunyoung Kim
- Department of Food Science and Nutrition, Jeju National University, Jeju, South Korea
| | - Chongyu Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Prevention, Department of Animal Nutrition, Shandong Agricultural University, Taian City, China
| | - Guiguo Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Prevention, Department of Animal Nutrition, Shandong Agricultural University, Taian City, China
| | - Yunkyoung Lee
- Department of Food Science and Nutrition, Jeju National University, Jeju, South Korea.,Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju, South Korea
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Li HY, Yi YL, Guo S, Zhang F, Yan H, Zhan ZL, Zhu Y, Duan JA. Isolation, structural characterization and bioactivities of polysaccharides from Laminaria japonica: A review. Food Chem 2022; 370:131010. [PMID: 34530347 DOI: 10.1016/j.foodchem.2021.131010] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/12/2021] [Accepted: 08/29/2021] [Indexed: 12/12/2022]
Abstract
Laminaria japonica is a familiar marine plant and is often used as food due to its abundant carbohydrates, vitamins and minerals. As one of the main types of active substances in L. japonica, polysaccharides are widely used in the food and chemical industries and in medicine and healthcare due to their health benefits, such as immunoregulatory, antioxidant, and antidiabetic effects. However, there has been no systematic summary of the isolation, structural characterization and bioactivities of L. japonica polysaccharides (LJPs). Therefore, the present review includes a survey of extraction and purification methods for these bioactive molecules, along with a dissertation on the structural characterization of the carbohydrate components. Moreover, an overview of the most recent results related to LJP biological activities is provided. This review provides a useful reference for further research, production, and application of LJPs in functional foods and therapeutic agents.
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Affiliation(s)
- Hai-Yang Li
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yan-Ling Yi
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sheng Guo
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Fang Zhang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hui Yan
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhi-Lai Zhan
- State Key Laboratory of Dao-di Herbs Breeding Base, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yue Zhu
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jin-Ao Duan
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Song W, Yang X, Wang W, Wang Z, Wu J, Huang F. Sinomenine ameliorates septic acute lung injury in mice by modulating gut homeostasis via aryl hydrocarbon receptor/Nrf2 pathway. Eur J Pharmacol 2021; 912:174581. [PMID: 34743979 DOI: 10.1016/j.ejphar.2021.174581] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/05/2021] [Accepted: 10/18/2021] [Indexed: 12/18/2022]
Abstract
Sepsis is a systemic inflammatory response syndrome caused by a host's immune response to infection. Acute lung injury (ALI) is one of the most common complications of sepsis with high mortality and morbidity. Recent evidence demonstrated that the 'gut-lung axis' was related to the progression of septic acute lung injury, which regarded gut microbiota and intestinal barrier as two critical factors correlated with acute lung injury. Sinomenine is an isoquinoline alkaloid component extracted from Sinomenium acutum Rehd,et Wils, which has been already reported to have significant anti-inflammatory, immunosuppressive, and anti-arthritis properties. In this research, we observed that sinomenine could repair the lung injury and alleviate inflammatory response induced by cecum ligation and puncture (CLP). Illumine sequencing of 16S rDNA revealed that sinomenine could improve the richness of gut microbiota and modulate the composition of intestinal flora in cecum ligation and puncture mice. Meanwhile, sinomenine could reduce the colon pathological damage and improve the intestine barrier integrity in cecum ligation and puncture mice. We also found that the molecular mechanism of sinomenine's protective effect on intestinal tract was related to the activation of aryl hydrocarbon receptor/nuclear factor erythroid-2 related factor 2(Nrf2)pathway both in vivo and vitro experiments. Collectively, the prevention of septic acute lung injury by sinomenine might be mediated by modulating gut microbiota and restoring intestinal barrier via aryl hydrocarbon receptor/Nrf2-dependent pathway.
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Affiliation(s)
- Wei Song
- School of Life Sciences and Technology, China Pharmaceutical University, Nanjing, China
| | - Xiaoting Yang
- School of Life Sciences and Technology, China Pharmaceutical University, Nanjing, China
| | - Wanqiu Wang
- School of Life Sciences and Technology, China Pharmaceutical University, Nanjing, China
| | - Zi Wang
- School of Life Sciences and Technology, China Pharmaceutical University, Nanjing, China
| | - Jie Wu
- School of Life Sciences and Technology, China Pharmaceutical University, Nanjing, China
| | - Fengjie Huang
- School of Life Sciences and Technology, China Pharmaceutical University, Nanjing, China.
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Saxami G, Kerezoudi EN, Mitsou EK, Koutrotsios G, Zervakis GI, Pletsa V, Kyriacou A. Fermentation Supernatants of Pleurotus eryngii Mushroom Ameliorate Intestinal Epithelial Barrier Dysfunction in Lipopolysaccharide-Induced Caco-2 Cells via Upregulation of Tight Junctions. Microorganisms 2021; 9:microorganisms9102071. [PMID: 34683391 PMCID: PMC8539016 DOI: 10.3390/microorganisms9102071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 11/18/2022] Open
Abstract
In recent years, modulation of gut microbiota through prebiotics has garnered interest as a potential to ameliorate intestinal barrier dysfunction. The aim of the study was to examine the in vitro effect of fermentation supernatants (FSs) from rich in β-glucan Pleurotus eryngii mushrooms on the expression levels of tight junctions (TJs) genes in Caco-2 cells stimulated by bacterial lipopolysaccharides (LPS). Mushrooms were fermented using fecal inocula in an in vitro batch culture model. Caco-2 cells were subjected to LPS and FS treatment under three different conditions: pre-incubation with FS, co- and post-incubation. Reverse transcription PCR was applied to measure the expression levels of zonulin-1, occludin and claudin-1 genes. FSs from P. eryngii mushrooms led to a significant upregulation of the TJs gene expression in pre-incubation state, indicating potential preventive action. Down-regulation of all TJs gene expression levels was observed when the cells were challenged with LPS. The FS negative control (gut microbiota of each donor with no carbohydrate source) exhibited a significant upregulation of TJs expression levels compared to the cells that were challenged with LPS, for all three conditions. Overall, our data highlighted the positive and potential protective effects of P. eryngii mushrooms in upregulation of TJs’ genes.
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Affiliation(s)
- Georgia Saxami
- Department of Nutrition and Dietetics, Harokopio University, 17671 Athens, Greece
| | - Evangelia N Kerezoudi
- Department of Nutrition and Dietetics, Harokopio University, 17671 Athens, Greece
- School of Medical Sciences, Örebro University, SE-701 82 Örebro, Sweden
| | - Evdokia K Mitsou
- Department of Nutrition and Dietetics, Harokopio University, 17671 Athens, Greece
| | - Georgios Koutrotsios
- Laboratory of General and Agricultural Microbiology, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece
| | - Georgios I Zervakis
- Laboratory of General and Agricultural Microbiology, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece
| | - Vasiliki Pletsa
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Adamantini Kyriacou
- Department of Nutrition and Dietetics, Harokopio University, 17671 Athens, Greece
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Zhang Q, Fan XY, Cao YJ, Zheng TT, Cheng WJ, Chen LJ, Lv XC, Ni L, Rao PF, Liang P. The beneficial effects of Lactobacillus brevis FZU0713-fermented Laminaria japonica on lipid metabolism and intestinal microbiota in hyperlipidemic rats fed with a high-fat diet. Food Funct 2021; 12:7145-7160. [PMID: 34231612 DOI: 10.1039/d1fo00218j] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study aimed to investigate the beneficial effects of the oral administration of Lactobacillus brevis FZU0713-fermented Laminaria japonica (FLJ) on lipid metabolism and intestinal microbiota in hyperlipidemic rats fed with a high-fat diet (HFD). The results demonstrated that the oral administration of FLJ significantly inhibited obesity and improved the serum and hepatic biochemical parameters in HFD-fed rats. Histopathological results also indicated that FLJ intervention could significantly reduce the accumulation of lipid droplets in the liver induced by HFD feeding. Furthermore, FLJ intervention up-regulated the fecal short-chain fatty acid (SCFA) levels (mainly acetate, propionate and isobutyrate) in HFD-fed rats. Intestinal microbiota profiling by 16S rRNA gene sequencing revealed that FLJ intervention increased the relative abundance of Akkermansia, Collinsella, Ruminococcaceae_UCG-013, Defluviitaleaceae_UCG-011, Intestinimonas, Actinomyces and Tyzzerella, but decreased the abundance of Flavonifractor, Collinsella, Sporosarcina and Lacticigenium. Based on Spearman's correlation, the fecal levels of TC, TG, acetic acid and butyric acid were positively correlated with the relative abundance of Akkermansia and Ruminococcaceae_NK4A214, but negatively correlated with the relative amount of Flavonifractor and Collinsella. The metabolic function of intestinal microbiota predicted by PICRUSt analysis of 16S rRNA gene sequences demonstrated that primary and secondary bile acid biosyntheses, fatty acid biosynthesis, taurine and hypotaurine metabolism, arachidonic acid metabolism, glycolysis/gluconeogenesis, etc. were significantly down-regulated after 8 weeks of FLJ intervention. Additionally, FLJ intervention significantly regulated the hepatic mRNA levels (including BSEP, CYP7A1, LDLR, HMGCR, CD36 and SREBP1-C) involved in lipid metabolism and bile acid homeostasis. In conclusion, these findings support the possibility that Laminaria japonica fermented with probiotic Lactobacillus has the potential to reduce the disturbance of lipid metabolism by regulating intestinal microflora and liver gene expression profiles, so it can be employed as a potential functional food to prevent hyperlipidemia.
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Affiliation(s)
- Qing Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China.
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Luan F, Zou J, Rao Z, Ji Y, Lei Z, Peng L, Yang Y, He X, Zeng N. Polysaccharides from Laminaria japonica: an insight into the current research on structural features and biological properties. Food Funct 2021; 12:4254-4283. [PMID: 33904556 DOI: 10.1039/d1fo00311a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Laminaria japonica, one of the most widespread seafood consumed in China and many other nations, has been traditionally utilized as an effective therapeutically active substance for treating weight loss, phlegm elimination, and detumescence for more than 2000 years. Numerous studies have found that the polysaccharides play an indispensable role in the nutritional and medicinal value of L. japonica. Water extraction and alcohol precipitation method is the most used method. Approximately 56 LJPs were successfully isolated and purified from L. japonica, whereas only few of them were well characterized. Modern pharmacological studies have shown that L. japonica polysaccharides (LJPs) have high-order structural features and multiple biological activities, including anti-tumor, anti-thrombotic, anti-atherosclerosis, hypolipidemic, hypoglycemic, antioxidant, anti-inflammatory, renoprotective, and immunomodulatory. In addition, the structural characteristics of LJPs are closely related to their biological activity. In this review, the extraction and purification methods, structural characteristics, biological activities, clinical settings, toxicities, and structure-activity relationships of LJPs are comprehensively summarized. The structural characteristics and biological activities as well as the underlying molecular mechanisms of LJPs were also outlined. Furthermore, the clinical settings and structure-activity functions of LJPs were highlighted. Some research perspectives and challenges in the study of LJPs were also proposed.
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Affiliation(s)
- Fei Luan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Sichuan 611137, P. R. China.
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Apostolova E, Lukova P, Baldzhieva A, Katsarov P, Nikolova M, Iliev I, Peychev L, Trica B, Oancea F, Delattre C, Kokova V. Immunomodulatory and Anti-Inflammatory Effects of Fucoidan: A Review. Polymers (Basel) 2020; 12:polym12102338. [PMID: 33066186 PMCID: PMC7602053 DOI: 10.3390/polym12102338] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/10/2020] [Accepted: 10/11/2020] [Indexed: 02/06/2023] Open
Abstract
Inflammation is the initial response of the immune system to potentially harmful stimuli (e.g., injury, stress, and infections). The process involves activation of macrophages and neutrophils, which produce mediators, such as nitric oxide (NO), prostaglandin E2 (PGE2), pro-inflammatory and anti-inflammatory cytokines. The pro-inflammatory cytokines interleukin-1β (IL-1β), interleukin 6 (IL-6), and tumor necrosis factor-α (TNF-α) are considered as biomarkers of inflammation. Even though it occurs as a physiological defense mechanism, its involvement in the pathogenesis of various diseases is reported. Rheumatoid arthritis, inflammatory bowel disease, Alzheimer's disease, and cardiovascular diseases are only a part of the diseases, in which pathogenesis the chronic inflammation is involved. Fucoidans are complex polysaccharides from brown seaweeds and some marine invertebrates, composed mainly of L-fucose and sulfate ester groups and minor amounts of neutral monosaccharides and uronic acids. Algae-derived fucoidans are studied intensively during the last years regarding their multiple biological activities and possible therapeutic potential. However, the source, species, molecular weight, composition, and structure of the polysaccharides, as well as the route of administration of fucoidans, could be crucial for their effects. Fucoidan is reported to act on different stages of the inflammatory process: (i) blocking of lymphocyte adhesion and invasion, (ii) inhibition of multiple enzymes, and (iii) induction of apoptosis. In this review, we focused on the immunemodulating and anti-inflammatory effects of fucoidans derived from macroalgae and the models used for their evaluation. Additional insights on the molecular structure of the compound are included.
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Affiliation(s)
- Elisaveta Apostolova
- Department of Pharmacology and Drug Toxicology, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria; (E.A.); (L.P.); (V.K.)
| | - Paolina Lukova
- Department of Pharmacognosy and Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria
- Correspondence: ; Tel.: +359-884978727
| | - Alexandra Baldzhieva
- Department of Microbiology and Immunology, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria;
- Research Institute at Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria;
| | - Plamen Katsarov
- Research Institute at Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria;
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria
| | - Mariana Nikolova
- Department of Biochemistry and Microbiology, Faculty of Biology, Plovdiv University Paisii Hilendarski, Tsar Asen Str. 24, 4000 Plovdiv, Bulgaria; (M.N.); (I.I.)
| | - Ilia Iliev
- Department of Biochemistry and Microbiology, Faculty of Biology, Plovdiv University Paisii Hilendarski, Tsar Asen Str. 24, 4000 Plovdiv, Bulgaria; (M.N.); (I.I.)
| | - Lyudmil Peychev
- Department of Pharmacology and Drug Toxicology, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria; (E.A.); (L.P.); (V.K.)
| | - Bogdan Trica
- Department of Bioresources, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM Bucharest, Splaiul Independenței 202, 060021 Bucharest, Romania; (B.T.); (F.O.)
| | - Florin Oancea
- Department of Bioresources, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM Bucharest, Splaiul Independenței 202, 060021 Bucharest, Romania; (B.T.); (F.O.)
| | - Cédric Delattre
- CNRS, SIGMA Clermont, Institut Pascal, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France;
- Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France
| | - Vesela Kokova
- Department of Pharmacology and Drug Toxicology, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4002 Plovdiv, Bulgaria; (E.A.); (L.P.); (V.K.)
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Lee KS, Cho E, Weon JB, Park D, Fréchet M, Chajra H, Jung E. Inhibition of UVB-Induced Inflammation by Laminaria japonica Extract via Regulation of nc886-PKR Pathway. Nutrients 2020; 12:E1958. [PMID: 32630038 PMCID: PMC7400497 DOI: 10.3390/nu12071958] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/26/2020] [Accepted: 06/27/2020] [Indexed: 12/21/2022] Open
Abstract
Continuous exposure to ultraviolet B (UVB) can cause photodamage of the skin. This photodamage can be inhibited by the overexpression of the non-coding RNA, nc886, via the protein kinase RNA-activated (PKR) pathway. The study aims to identify how UVB inhibits nc886 expression, and it also seeks to determine whether substances that can control nc886 expression can influence UV-induced inflammation, and the mechanisms involved. The results suggest that UVB irradiation accelerates the methylation of the nc886 gene, therefore, reducing its expression. This induces the activation of the PKR, which accelerates the expression of metalloproteinase-9 (MMP-9) and cyclooxygenase (COX-2), and the production of MMP-9, prostaglandin-endoperoxide synthase (PGE2), and certain pro-inflammatory cytokines, specifically interleukin-8 (IL-8), and tumor necrosis factor- (TNF-). Conversely, in a model of nc886 overexpression, the expression and production of those inflammatory factors are inhibited. In addition, Laminaria japonica extract (LJE) protect the levels of nc886 against UVB irradiation then subsequently inhibit the production of UV-induced inflammatory factors through the PKR pathway.
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Affiliation(s)
- Kwang-Soo Lee
- Life Science Institute, BioSpectrum, Yongin 16827, Gyeonggi, Korea; (K.-S.L.); (E.C.); (J.B.W.); (D.P.)
| | - Eunae Cho
- Life Science Institute, BioSpectrum, Yongin 16827, Gyeonggi, Korea; (K.-S.L.); (E.C.); (J.B.W.); (D.P.)
| | - Jin Bae Weon
- Life Science Institute, BioSpectrum, Yongin 16827, Gyeonggi, Korea; (K.-S.L.); (E.C.); (J.B.W.); (D.P.)
| | - Deokhoon Park
- Life Science Institute, BioSpectrum, Yongin 16827, Gyeonggi, Korea; (K.-S.L.); (E.C.); (J.B.W.); (D.P.)
| | - Mathilde Fréchet
- Clariant Active Ingredients, d’espagne, 31000 Toulouse, France; (M.F.); (H.C.)
| | - Hanane Chajra
- Clariant Active Ingredients, d’espagne, 31000 Toulouse, France; (M.F.); (H.C.)
| | - Eunsun Jung
- Life Science Institute, BioSpectrum, Yongin 16827, Gyeonggi, Korea; (K.-S.L.); (E.C.); (J.B.W.); (D.P.)
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Besednova NN, Zaporozhets TS, Kuznetsova TA, Makarenkova ID, Kryzhanovsky SP, Fedyanina LN, Ermakova SP. Extracts and Marine Algae Polysaccharides in Therapy and Prevention of Inflammatory Diseases of the Intestine. Mar Drugs 2020; 18:E289. [PMID: 32486405 PMCID: PMC7345783 DOI: 10.3390/md18060289] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 12/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a serious public health problem worldwide. Current therapeutic strategies that use anti-inflammatory drugs, immunosuppressants, and biological treatments are often ineffective and have adverse health effects. In this regard, the use of natural compounds aimed at key pathogenic therapeutic targets in IBD attracts universal attention. Seaweed is a valuable source of structurally diverse biologically active compounds. The materials presented in the review indicate that seaweed extracts and polysaccharides are effective candidates for the development of drugs, biological food additives, and functional nutrition products for the treatment and prevention of IBD. The structural features of algal polysaccharides provide the possibility of exposure to therapeutic targets of IBD, including proinflammatory cytokines, chemokines, adhesion molecules, nuclear factor NF-kB, intestinal epithelial cells, reactive oxygen and nitrogen. Further study of the relationship between the effect of polysaccharides from different types of algae, with different structure and molecular weights on immune and epithelial cells, intestinal microorganisms will contribute to a deeper understanding of their mechanisms and will help in the development of drugs, dietary supplements, functional foods for the treatment of patients with IBD.
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Affiliation(s)
- Natalya N. Besednova
- Somov Institute of Epidemiology and Microbiology, Vladivostok 690087, Russia; (N.N.B.); (T.A.K.); (I.D.M.)
| | - Tatyana S. Zaporozhets
- Somov Institute of Epidemiology and Microbiology, Vladivostok 690087, Russia; (N.N.B.); (T.A.K.); (I.D.M.)
| | - Tatyana A. Kuznetsova
- Somov Institute of Epidemiology and Microbiology, Vladivostok 690087, Russia; (N.N.B.); (T.A.K.); (I.D.M.)
| | - Ilona D. Makarenkova
- Somov Institute of Epidemiology and Microbiology, Vladivostok 690087, Russia; (N.N.B.); (T.A.K.); (I.D.M.)
| | - Sergey P. Kryzhanovsky
- School of Biomedicine, Far Eastern Federal University, Vladivostok 690087, Russia; (S.P.K.); (L.N.F.)
| | - Lydmila N. Fedyanina
- School of Biomedicine, Far Eastern Federal University, Vladivostok 690087, Russia; (S.P.K.); (L.N.F.)
| | - Svetlana P. Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, FEB RAS, Vladivostok 690022, Russia;
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He C, Hu X, Xiao D, Wu J, Zhou S, Deng J, Xu S, Huang Y, Peng M, Yang X. Vitamin A prevents lipopolysaccharide-induced injury on tight junctions in mice. Food Sci Nutr 2020; 8:1942-1948. [PMID: 32328260 PMCID: PMC7174240 DOI: 10.1002/fsn3.1481] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 12/14/2019] [Accepted: 12/21/2019] [Indexed: 12/14/2022] Open
Abstract
Vitamin A (VA) is one of the most widely used food supplements, but its molecular mechanisms largely remain elusive. Previously, we have demonstrated that VA inhibits the action of lipopolysaccharide (LPS) on intestinal epithelial barrier function and tight junction proteins using IPEC-J2 cells, one of representative intestinal cell lines as a cellular model. These exciting findings stimulated us continue to determine the effects of VA on LPS-induced damage of intestinal integrity in mice. Our results demonstrated that LPS treatment caused reductions of the mRNA levels of tight junction proteins including Zo-1, Occludin, and Claudin-1, well-known biomarkers of intestinal integrity, and these reductions were reversed by VA pretreatment. Intestinal immunofluorescent results of Claudin-1 revealed that LPS disrupted the structure of tight junction and reduced the expression of Claudin-1 at protein level, which was reversed by VA pretreatment. These results suggest that VA may exert a profound role on preventing intestinal inflammation in vivo.
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Affiliation(s)
- Caimei He
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
| | - Xin Hu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
| | - Di Xiao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
| | - Jingtao Wu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
| | - Sichun Zhou
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
| | - Jun Deng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
| | - Simeng Xu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
| | - Yanjun Huang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
- Department of PharmacyTraditional Chinese Hospital of Yueyang CityYueyangChina
| | - Mei Peng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
- Department of PharmacyXiangya HospitalCentral South UniversityChangshaChina
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan ProvinceDepartment of PharmacySchool of MedicineHunan Normal UniversityChangshaChina
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Lan J, Dou X, Li J, Yang Y, Xue C, Wang C, Gao N, Shan A. l-Arginine Ameliorates Lipopolysaccharide-Induced Intestinal Inflammation through Inhibiting the TLR4/NF-κB and MAPK Pathways and Stimulating β-Defensin Expression in Vivo and in Vitro. J Agric Food Chem 2020; 68:2648-2663. [PMID: 32064872 DOI: 10.1021/acs.jafc.9b07611] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Nutritional regulation of endogenous antimicrobial peptide (AMP) expression is considered a promising nonantibiotic approach to suppressing intestinal infection of pathogen. The current study investigated the effects of l-arginine on LPS-induced intestinal inflammation and barrier dysfunction in vivo and in vitro. The results revealed that l-arginine attenuated LPS-induced inflammatory response, inhibited the downregulation of tight junction proteins (TJP) (p < 0.05) by LPS, and maintained intestinal integrity. In porcine intestinal epithelial cells (IPEC-J2), l-arginine obviously suppressed (p < 0.05) the levels of IL-6 (220.63 ± 2.82), IL-8 (333.95 ± 3.75), IL-1β (693.08 ± 2.38), and TNF-α (258.04 ± 4.14) induced by LPS. Furthermore, l-arginine diminished the LPS-induced expression of Toll-like receptor 4 (TLR4) and inhibited activation of TLR4-mediated nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways. Importantly, we proposed a new mechanism that l-arginine had the ability to stimulate the expression of porcine epithelial β-defensins through activating the mammalian target of the rapamycin (mTOR) pathway, which exerts anti-inflammatory influence. Moreover, pBD-1 gene overexpression decreased (p < 0.05) the TNF-α level stimulated by LPS in IPEC-J2 cells (4.22 ± 1.64). The present study indicated that l-arginine enhanced disease resistance through inhibiting the TLR4/NF-κB and MAPK pathways and partially, possibly through increasing the intestinal β-defensin expression.
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Affiliation(s)
- Jing Lan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xiujing Dou
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Jiawei Li
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Yang Yang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Chenyu Xue
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Chenxi Wang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Nan Gao
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
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Wang Y, Ji X, Yan M, Chen X, Kang M, Teng L, Wu X, Chen J, Deng C. Protective effect and mechanism of polysaccharide from Dictyophora indusiata on dextran sodium sulfate-induced colitis in C57BL/6 mice. Int J Biol Macromol 2019; 140:973-984. [DOI: 10.1016/j.ijbiomac.2019.08.198] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/20/2019] [Accepted: 08/22/2019] [Indexed: 02/07/2023]
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Li S, He N, Wang L. Efficiently Anti-Obesity Effects of Unsaturated Alginate Oligosaccharides (UAOS) in High-Fat Diet (HFD)-Fed Mice. Mar Drugs 2019; 17:E540. [PMID: 31533255 DOI: 10.3390/md17090540] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 12/15/2022] Open
Abstract
Obesity and its related complications have become one of the leading problems affecting human health. However, current anti-obesity treatments are limited by high cost and numerous adverse effects. In this study, we investigated the use of a non-toxic green food additive, known as unsaturated alginate oligosaccharides (UAOS) from the enzymatic degradation of Laminaria japonicais, which showed effective anti-obesity effects in a high-fat diet (HFD) mouse model. Compared with acid hydrolyzed saturated alginate oligosaccharides (SAOS), UAOS significantly reduced body weight, serum lipid, including triacylglycerol (TG), total cholesterol (TC) and free fatty acids (FFA), liver weight, liver TG and TC, serum alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels, adipose mass, reactive oxygen species (ROS) formation, and accumulation induced in HFD mice. Moreover, the structural differences in β-d-mannuronate (M) and its C5 epimer α-l-guluronate (G) did not cause significant functional differences. Meanwhile, UAOS significantly increased both AMP-activated protein kinase α (AMPKα) and acetyl-CoA carboxylase (ACC) phosphorylation in adipocytes, which indicated that UAOS had an anti-obesity effect mainly through AMPK signaling. Our results indicate that UAOS has the potential for further development as an adjuvant treatment for many metabolic diseases such as fatty liver, hypertriglyceridemia, and possibly diabetes.
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