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Wang S, Sun D, Ye B, Xu G, Zou J. Dietary kelp meal improves serum antioxidants, intestinal immunity, and lipid metabolism in hybrid snakehead (Channa maculata ♀ × Channa argus ♂). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38733135 DOI: 10.1002/jsfa.13566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/28/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND Dietary kelp possesses a variety of useful biological qualities but does not have a toxic effect on the host. In this study, we examine how kelp dietary supplementation enhances the serum biochemistry, intestinal immunity, and metabolism of hybrid snakehead. A total of 810 juvenile hybrid snakeheads (Channa maculata ♀ × Channa argus ♂), with an initial average weight of 11.4 ± 0.15 g, were allocated randomly to three treatment groups (three replicates per group). The fish were fed for 60 days with isonitrogenous and isolipidic diets. The groups were the control group (C) (20% high-gluten flour), the medium replacement group (MR) (10% high-gluten flour and 10% kelp meal), and the full replacement group (FR) (0% high-gluten flour and 15% kelp meal). RESULTS The results showed that dietary kelp increased the activity of serum antioxidant enzymes significantly and decreased the content of serum malondialdehyde (MDA) in hybrid snakeheads, with significant changes in the FR group (P < 0.05). The intestinal morphology results showed that dietary kelp helped to increase the specific surface area of intestinal villi, which was beneficial for intestinal digestion and absorption. According to transcriptome and quantitative real-time polymerase chain reaction (qRT-PCR) analysis, dietary kelp can improve the expression of intestinal immunity and metabolism-related pathways. Among them, immune-related genes MHC1 and HSPA1 were significantly up-regulated, and IGH, MHC2, and IL-8 were significantly down-regulated (P < 0.05). Lipid metabolism-related genes DGAT2, FABP2, RXRα, and PLPP1 were all significantly up-regulated (P < 0.05). CONCLUSION Dietary kelp can effectively improve the antioxidant function of hybrid snakeheads, improve intestinal morphology, reduce intestinal inflammation, and promote intestinal lipid synthesis and transportation, thereby improving intestinal immunity and metabolic functions. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Shaodan Wang
- State Key Laboratory of Mariculture Breeding, Key Laboratory of Marine Biotechnology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Di Sun
- Joint Laboratory of Guangdong province and Hong Kong region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Bin Ye
- Joint Laboratory of Guangdong province and Hong Kong region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Guohuan Xu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jixing Zou
- Joint Laboratory of Guangdong province and Hong Kong region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
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Geng H, Chen M, Guo C, Wang W, Chen D. Marine polysaccharides: Biological activities and applications in drug delivery systems. Carbohydr Res 2024; 538:109071. [PMID: 38471432 DOI: 10.1016/j.carres.2024.109071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
The ocean is the common home of a large number of marine organisms, including plants, animals, and microorganisms. Researchers can extract thousands of important bioactive components from the oceans and use them extensively to treat and prevent diseases. In contrast, marine polysaccharide macromolecules such as alginate, carrageenan, Laminarin, fucoidan, chitosan, and hyaluronic acid have excellent physicochemical properties, good biocompatibility, and high bioactivity, which ensures their wide applications and strong therapeutic potentials in drug delivery. Drug delivery systems (DDS) based on marine polysaccharides and modified marine polysaccharide molecules have emerged as an innovative technology for controlling drug distribution on temporal, spatial, and dosage scales. They can detect and respond to external stimuli such as pH, temperature, and electric fields. These properties have led to their wide application in the design of novel drug delivery systems such as hydrogels, polymeric micelles, liposomes, microneedles, microspheres, etc. In addition, marine polysaccharide-based DDS not only have smart response properties but also can combine with the unique biological properties of the marine polysaccharide base to exert synergistic therapeutic effects. The biological activities of marine polysaccharides and the design of marine polysaccharide-based DDS are reviewed. Marine polysaccharide-based responsive DDS are expected to provide new strategies and solutions for disease treatment.
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Affiliation(s)
- Hongxu Geng
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, School of Pharmacy, Yantai University, Yantai, 264005, PR China.
| | - Meijun Chen
- Yantai Muping District Hospital of Traditional Chinese Medicine, No.505, Government Street, Muping District, Yantai, 264110, PR China.
| | - Chunjing Guo
- College of Marine Life Science, Ocean University of China, 5# Yushan 10 Road, Qingdao, 266003, PR China.
| | - Wenxin Wang
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, School of Pharmacy, Yantai University, Yantai, 264005, PR China.
| | - Daquan Chen
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, School of Pharmacy, Yantai University, Yantai, 264005, PR China.
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Wang S, Zuo Z, Ye B, Zhang L, Cheng Y, Xie S, Zou J, Xu G. Microbiome-Metabolomic Analysis Reveals Beneficial Effects of Dietary Kelp Resistant Starch on Intestinal Functions of Hybrid Snakeheads ( Channa maculata ♀ × Channa argus ♂). Antioxidants (Basel) 2023; 12:1631. [PMID: 37627626 PMCID: PMC10451247 DOI: 10.3390/antiox12081631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/23/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
The benefits of resistant starch on hypoglycemia, obesity prevention, antioxidant status and the alleviation of metabolic syndrome have received considerable attention. In this study, we explored how dietary kelp resistant starch (KRS) enhances intestinal morphology and function through a microbiome-metabolomic analysis. Hybrid snakeheads (initial weight: 11.4 ± 0.15 g) were fed experimental diets for 60 days. Fish were fed a basic wheat starch diet and the KRS diet. Dietary KRS improved intestinal morphology and enhanced intestinal antioxidant and digestive capabilities, as evidenced by decreased intestinal damage and upregulated intestinal biochemical markers. The microbiome analysis showed that KRS administration elevated the proportion of butyrate-producing bacteria and the abundance of beneficial bacteria that increases insulin sensitivity. Furthermore, significant alterations in metabolic profiles were observed to mainly associate with the amino acid metabolism (particularly arginine production), the metabolism of cofactors and vitamins, fat metabolism, glutathione metabolism, and the biosynthesis of other secondary metabolites. Additionally, alterations in intestinal microbiota composition were significantly associated with metabolites. Collectively, changes in intestinal microbiota and metabolite profiles produced by the replacement of common starch with dietary KRS appears to play an important role in the development of intestinal metabolism, thus leading to improved intestinal function and homeostasis.
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Affiliation(s)
- Shaodan Wang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; (S.W.); (L.Z.); (Y.C.)
| | - Zhiheng Zuo
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (Z.Z.); (B.Y.); (S.X.)
| | - Bin Ye
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (Z.Z.); (B.Y.); (S.X.)
| | - Li Zhang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; (S.W.); (L.Z.); (Y.C.)
| | - Yanbo Cheng
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; (S.W.); (L.Z.); (Y.C.)
| | - Shaolin Xie
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (Z.Z.); (B.Y.); (S.X.)
| | - Jixing Zou
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (Z.Z.); (B.Y.); (S.X.)
| | - Guohuan Xu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; (S.W.); (L.Z.); (Y.C.)
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Zeng X, Lv B, Zhu Y, Li Q, Zhang K, Li C, Zhao D, Li C. Influence of hydrophilic polysaccharide fat replacers on the in vitro digestibility of protein in emulsion-type sausage. Food Res Int 2023; 170:113008. [PMID: 37316076 DOI: 10.1016/j.foodres.2023.113008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 06/16/2023]
Abstract
Hydrophilic polysaccharides have been widely applied as fat replacers in meat products, but their effects on the digestibility of meat proteins has seldom been studied. Replacement of backfat in emulsion-type sausage with konjac gum (KG), sodium alginate (SA) and xanthan gum (XG) were found to reduce the released amino group (-NH2) during simulated gastric digestion and initial intestinal digestion. The suppressed gastric digestibility of protein was verified by the denser structures of protein gastric digests and reduced generation of peptides in gastric digestion when a polysaccharide was added. After the whole gastrointestinal digestion, high level of SA and XG resulted in larger digests and a more obvious SDS-PAGE band between 5 and 15 kDa, and KG and SA significantly reduced the total release of -NH2. Additional of KG, SA and XG were found to the increase the viscosity of the gastric digests mixture, which could account for the reduced hydrolysis efficiency of pepsin during the gastric digestion, as evidenced in the pepsin activity study (decreased by 12.2-39.1%). This work highlights the influence of polysaccharide fat replacer on the digestibility of meat protein by changing the matrix characteristics.
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Affiliation(s)
- Xianming Zeng
- Key Laboratory of Meat Processing and Quality Control, MOE, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Key Laboratory of Meat Products Processing, MOA, Nanjing Agricultural University Nanjing 210095, PR China
| | - Bowen Lv
- Key Laboratory of Meat Processing and Quality Control, MOE, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Key Laboratory of Meat Products Processing, MOA, Nanjing Agricultural University Nanjing 210095, PR China
| | - Yuan Zhu
- State Key Laboratory of Meat Processing and Quality Control, Yurun Group, Nanjing 211806, PR China
| | - Qiuyue Li
- Key Laboratory of Meat Processing and Quality Control, MOE, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Key Laboratory of Meat Products Processing, MOA, Nanjing Agricultural University Nanjing 210095, PR China
| | - Kexin Zhang
- Key Laboratory of Meat Processing and Quality Control, MOE, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Key Laboratory of Meat Products Processing, MOA, Nanjing Agricultural University Nanjing 210095, PR China
| | - Chao Li
- State Key Laboratory of Meat Processing and Quality Control, Yurun Group, Nanjing 211806, PR China.
| | - Di Zhao
- Key Laboratory of Meat Processing and Quality Control, MOE, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Key Laboratory of Meat Products Processing, MOA, Nanjing Agricultural University Nanjing 210095, PR China.
| | - Chunbao Li
- Key Laboratory of Meat Processing and Quality Control, MOE, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Key Laboratory of Meat Products Processing, MOA, Nanjing Agricultural University Nanjing 210095, PR China
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Maruyama S, Segawa Y, Harui A, Yamamoto K, Hashimoto H, Osera T, Kurihara N. Influence of Intestinal Barrier on Alleviating an Increase in Blood Pressure by Sodium Alginate Intake in 2-Kidney, 1-Clip Renovascular Hypertensive Rats. Mar Drugs 2023; 21:324. [PMID: 37367649 DOI: 10.3390/md21060324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/15/2023] [Accepted: 05/24/2023] [Indexed: 06/28/2023] Open
Abstract
Sodium alginate (SALG) is a substance derived from brown seaweed that has been shown to reduce blood pressure (BP). However, its effects on renovascular hypertension caused by 2-kidney, 1-clip (2K1C) are not yet clear. Previous research suggests that hypertensive rats have increased intestinal permeability, and that SALG improves the gut barrier in inflammatory bowel disease mouse models. Therefore, the goal of this study was to determine whether the antihypertensive effects of SALG involve the intestinal barrier in 2K1C rats. Rats were fed either a 1.0% SALG diet or a control diet for six weeks after being subjected to 2K1C surgery or a sham operation. The systolic BP was measured weekly, and the mean arterial BP was measured at the end of the study. Intestinal samples were taken for analysis, and plasma lipopolysaccharide (LPS) levels were measured. The results showed that BP in 2K1C rats was significantly higher than in SHAM rats when fed CTL, but not when fed SALG. The gut barrier in 2K1C rats was improved by SALG intake. Plasma LPS levels also differed depending on the animal model and diet. In conclusion, dietary SALG may alleviate 2K1C renovascular hypertension by altering the gut barrier.
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Affiliation(s)
- Saki Maruyama
- Hygiene and Preventive Medicine, Graduate School of Home Economics, Kobe Women's University, 2-1 Higashisuma-Aoyama, Suma, Kobe 654-8585, Japan
| | - Yukiko Segawa
- Hygiene and Preventive Medicine, Graduate School of Home Economics, Kobe Women's University, 2-1 Higashisuma-Aoyama, Suma, Kobe 654-8585, Japan
- Faculty of Cookery and Confectionery, Osaka Seikei College, 10-62 Aikawa, Higashiyodogawa, Osaka 533-0007, Japan
| | - Ayaka Harui
- Hygiene and Preventive Medicine, Graduate School of Home Economics, Kobe Women's University, 2-1 Higashisuma-Aoyama, Suma, Kobe 654-8585, Japan
| | - Kanae Yamamoto
- Hygiene and Preventive Medicine, Graduate School of Home Economics, Kobe Women's University, 2-1 Higashisuma-Aoyama, Suma, Kobe 654-8585, Japan
| | - Hiroko Hashimoto
- Hygiene and Preventive Medicine, Graduate School of Home Economics, Kobe Women's University, 2-1 Higashisuma-Aoyama, Suma, Kobe 654-8585, Japan
- Faculty of Nutrition, Osaka Seikei College, 10-62 Aikawa, Higashiyodogawa, Osaka 533-0007, Japan
| | - Tomoko Osera
- Hygiene and Preventive Medicine, Graduate School of Home Economics, Kobe Women's University, 2-1 Higashisuma-Aoyama, Suma, Kobe 654-8585, Japan
- Department of Nutrition and Health Sciences, Toyo University, 1-1-1 Izumino, Ora-gun, Itakura-machi 374-0193, Gunma, Japan
| | - Nobutaka Kurihara
- Hygiene and Preventive Medicine, Graduate School of Home Economics, Kobe Women's University, 2-1 Higashisuma-Aoyama, Suma, Kobe 654-8585, Japan
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Lemieszek MK, Adamczyk P, Komaniecka I, Rzeski W, Tomczyk M, Wiater A. (1→3)-α-d-Glucooligosaccharides Increase the Killing Capacity of NK Cells against Selected Human Colon Cancer Cells. Molecules 2023; 28:molecules28104212. [PMID: 37241952 DOI: 10.3390/molecules28104212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Despite the progress of medicine, colorectal cancer has occupied one of the highest positions in the rankings of cancer morbidity and mortality for many years. Thus, alternative methods of its treatment are sought. One of the newer therapeutic strategies is immunotherapy based on NK cells (natural killers), which are the body's first line of defense against cancer. The aim of the study was to verify the possibility of using (1→3)-α-d-glucooligosaccharides (GOSs) obtained via acid hydrolysis of (1→3)-α-d-glucan from the fruiting body of Laetiporus sulphureus to improve the anticancer effect of NK-92 cells, with proven clinical utility, against selected human colon adenocarcinoma cell lines LS180 and HT-29. The study revealed that the investigated oligosaccharides significantly enhanced the ability of NK-92 cells to eliminate the examined colon cancer cells, mostly by an increase in their cytotoxic activity. The most significant effect was observed in LS180 and HT-29 cells exposed to a two-times higher quantity of NK cells activated by 500 µg/mL GOS, wherein NK-92 killing properties increased for 20.5% (p < 0.001) and 24.8% (p < 0.001), respectively. The beneficial impact of (1→3)-α-d-glucooligosaccharides on the anticancer properties of NK-92 suggests their use in colon cancer immunotherapy as adjuvants; however, the obtained data require further investigation and confirmation.
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Affiliation(s)
- Marta Kinga Lemieszek
- Department of Medical Biology, Institute of Rural Health, ul. Jaczewskiego 2, 20-090 Lublin, Poland
| | - Paulina Adamczyk
- Department of Industrial and Environmental Microbiology, Institute of Biological Science, Maria Curie-Skłodowska University, ul. Akademicka 19, 20-033 Lublin, Poland
| | - Iwona Komaniecka
- Department of Genetics and Microbiology, Institute of Biological Science, Maria Curie-Skłodowska University, ul. Akademicka 19, 20-033 Lublin, Poland
| | - Wojciech Rzeski
- Department of Medical Biology, Institute of Rural Health, ul. Jaczewskiego 2, 20-090 Lublin, Poland
- Department of Functional Anatomy and Cytobiology, Institute of Biological Science, Maria Curie-Skłodowska University, ul. Akademicka 19, 20-033 Lublin, Poland
| | - Michał Tomczyk
- Department of Pharmacognosy, Faculty of Pharmacy with the Division of Laboratory Medicine, Medical University of Białystok, ul. Mickiewicza 2a, 15-230 Białystok, Poland
| | - Adrian Wiater
- Department of Industrial and Environmental Microbiology, Institute of Biological Science, Maria Curie-Skłodowska University, ul. Akademicka 19, 20-033 Lublin, Poland
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Magwaza SN, Islam MS. Roles of Marine Macroalgae or Seaweeds and Their Bioactive Compounds in Combating Overweight, Obesity and Diabetes: A Comprehensive Review. Mar Drugs 2023; 21:md21040258. [PMID: 37103396 PMCID: PMC10142144 DOI: 10.3390/md21040258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023] Open
Abstract
Obesity and diabetes are matters of serious concern in the health sector due to their rapid increase in prevalence over the last three decades. Obesity is a severe metabolic problem that results in energy imbalance that is persistent over a long period of time, and it is characterized by insulin resistance, suggesting a strong association with type 2 diabetes (T2D). The available therapies for these diseases have side effects and some still need to be approved by the Food and Drug Administration (FDA), and they are expensive for underdeveloped countries. Hence, the need for natural anti-obesity and anti-diabetic drugs has increased in recent years due to their lower costs and having virtually no or negligible side effects. This review thoroughly examined the anti-obesity and anti-diabetic effects of various marine macroalgae or seaweeds and their bioactive compounds in different experimental settings. According to the findings of this review, seaweeds and their bioactive compounds have been shown to have strong potential to alleviate obesity and diabetes in both in vitro and in vivo or animal-model studies. However, the number of clinical trials in this regard is limited. Hence, further studies investigating the effects of marine algal extracts and their bioactive compounds in clinical settings are required for developing anti-obesity and anti-diabetic medicines with better efficacy but lower or no side effects.
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Affiliation(s)
- S'thandiwe Nozibusiso Magwaza
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal (Westville Campus), Durban 4000, South Africa
| | - Md Shahidul Islam
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal (Westville Campus), Durban 4000, South Africa
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Feng Y, Niu L, Sun C, Tu J, Yu L, Xiao J. Collagen hydrolysates improve the efficiency of sodium alginate-encapsulated tea polyphenols in beads and the storage stability after commercial sterilization. Int J Biol Macromol 2023; 231:123314. [PMID: 36681216 DOI: 10.1016/j.ijbiomac.2023.123314] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/26/2022] [Accepted: 01/13/2023] [Indexed: 01/20/2023]
Abstract
This study showed that sodium alginates (SA)-based beads reinforced with collagen hydrolysates (CHs) significantly increased an encapsulation rate of tea polyphenols (TP) from 34.54 % to 85.06 % when the mass ratio of SA: CHs increased from1.5:0 to 1.5:0.5. And after the 30-day storage at 37 °C, the retention rate of TP in beads with CHs at the solutions with pH = 4.0 or pH = 7.0 increased from 61.10 % to 80.21 %, or from 67.72 % to 80.47 % after sterilization at 98 °C or 121 °C for 30 min, respectively. Also, the addition of CHs at 0.5 % resulted in a greater retention of the polyphenolic compositions values of TP determined by UPLC-Orbitrap-MS system. Additionally, the DPPH and ABTS+ free-radical scavenging capacities and ferric-reducing antioxidant power of beads with CHs after sterilization at 98 °C or 121 °C for 30 min were significantly higher than which without CHs. Physical phenomena based on ζ-potential, particle size, fluorescence, UV spectroscopy and confocal laser scanning microscope showed that tightly non-covalent complexes of CHs in combination to TP could be uniformly and stably distributed in the network of SA solution for encapsulating TP in SA-based beads. These findings provided suggestions for the co-encapsulation design and development of hydrophilic nutritive compounds based on CHs in SA-based beads.
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Affiliation(s)
- Yaping Feng
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Liya Niu
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Chao Sun
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jin Tu
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Lili Yu
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jianhui Xiao
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China.
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Metagenomic Insights into the Anti-Obesity Effect of a Polysaccharide from Saccharina japonica. Foods 2023; 12:foods12030665. [PMID: 36766192 PMCID: PMC9914707 DOI: 10.3390/foods12030665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/11/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
Saccharina japonica polysaccharides exhibit great potential to be developed as anti-obesity and prebiotic health products, but the underlying mechanism has not been adequately addressed. In this study, we investigated the potential mechanism of a S. japonica polysaccharide fraction (SjC) in preventing high-fat-diet (HFD)-induced obesity in mice using 16S rRNA gene and shotgun metagenomic sequencing analysis. SjC was characterized as a 756 kDa sulfated polysaccharide and 16 weeks of SjC supplementation significantly alleviated HFD-induced obesity, insulin resistance, and glucose metabolism disorders. The 16S rRNA and metagenomic sequencing analysis demonstrated that SjC supplementation prevented gut microbiota dysbiosis mainly by regulating the relative abundance of Desulfovibrio and Akkermansia. Metagenomic functional profiling demonstrated that SjC treatment predominantly suppressed the amino acid metabolism of gut microbiota. Linking of 16S rRNA genes with metagenome-assembled genomes indicated that SjC enriched at least 22 gut bacterial species with fucoidan-degrading potential including Desulfovibrio and Akkermansia, which showed significant correlations with bodyweight. In conclusion, our results suggest that SjC exhibits a promising potential as an anti-obesity health product and the interaction between SjC and fucoidan-degrading bacteria may be associated with its anti-obesity effect.
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Zhang H, Zhou Y, Xu C, Qin X, Guo Z, Wei H, Yu CY. Mediation of synergistic chemotherapy and gene therapy via nanoparticles based on chitosan and ionic polysaccharides. Int J Biol Macromol 2022; 223:290-306. [PMID: 36347370 DOI: 10.1016/j.ijbiomac.2022.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
Nanoparticles (NPs)-based on various ionic polysaccharides, including chitosan, hyaluronic acid, and alginate have been frequently summarized for controlled release applications, however, most of the published reviews, to our knowledge, focused on the delivery of a single therapeutic agent. A comprehensive summarization of the co-delivery of multiple therapeutic agents by the ionic polysaccharides-based NPs, especially on the optimization of the polysaccharide structure for overcoming various extracellular and intracellular barriers toward maximized synergistic effects, to our knowledge, has been rarely explored so far. For this purpose, the strategies used for overcoming various extracellular and intracellular barriers in vivo were introduced first to provide guidance for the rational design of ionic polysaccharides-based NPs with desired features, including long-term circulation, enhanced cellular internalization, controllable drug/gene release, endosomal escape and improved nucleus localization. Next, four preparation strategies were summarized including three physical methods of polyelectrolyte complexation, ionic crosslinking, and self-assembly and a chemical conjugation approach. The challenges and future trends of this rapidly developing field were finally discussed in the concluding remarks. The important guidelines on the rational design of ionic polysaccharides-based NPs for maximized synergistic efficiency drawn in this review will promote the future generation and clinical translation of polysaccharides-based NPs for cancer therapy.
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Affiliation(s)
- Haitao Zhang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Yangchun Zhou
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Chenghui Xu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Xuping Qin
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Zifen Guo
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Hua Wei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Cui-Yun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China.
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Zhao H, Gao X, Liu Z, Zhang L, Fang X, Sun J, Zhang Z, Sun Y. Sodium Alginate Prevents Non-Alcoholic Fatty Liver Disease by Modulating the Gut-Liver Axis in High-Fat Diet-Fed Rats. Nutrients 2022; 14:nu14224846. [PMID: 36432531 PMCID: PMC9697635 DOI: 10.3390/nu14224846] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/18/2022] Open
Abstract
Previous studies have suggested that the sodium alginate (SA) is beneficial for the treatment of non-alcoholic fatty liver disease (NAFLD), while the potential mechanisms are largely unknown. The present study aimed to clarify the effects and potential mechanisms of SA in preventing NAFLD via the gut−liver axis. Thirty-two male Sprague−Dawley rats were randomly divided into four groups: normal control group (NC); high-fat diet group (HFD); HFD with 50 mg/kg/d sodium alginate group (LSA); HFD with 150 mg/kg/d sodium alginate group (HSA). After 16 weeks, the rats were scarified to collect blood and tissues. The results indicated that SA significantly reduced their body weight, hepatic steatosis, serum triglyceride (TG), alanine transaminase (ALT) and tumor necrosis factor α (TNF-α) levels and increased serum high-density lipoprotein-cholesterol (HDL-C) levels in comparison with HFD group (p < 0.05). The elevated mRNA and protein expression of genes related to the toll-like receptor 4 (TLR-4)/nuclear factor-kappa B (NF-κB)/nod-like receptor protein 3 (NLRP3) inflammatory signaling pathway in the liver of HFD-fed rats was notably suppressed by SA. In terms of the gut microbiota, the LSA group showed a significantly higher fecal abundance of Oscillospiraceae_UCG_005, Butyricicoccaceae_UCG_009 and Colidextribacter compared with the HFD group (p < 0.05). The rats in the HSA group had a higher abundance of unclassified_Lachnospiraceae, Colidextribacter and Oscillibacter compared with the HFD-associated gut community (p < 0.05). In addition, rats treated with SA showed a significant increase in fecal short chain fatty acids (SCFAs) levels and a decline in serum lipopolysaccharide (LPS) levels compared with the HFD group (p < 0.05). Moreover, the modulated bacteria and microbial metabolites were notably correlated with the amelioration of NAFLD-related indices and activation of the hepatic TLR4/NF-κB/NLRP3 pathway. In conclusion, SA prevented NAFLD and the potential mechanism was related to the modulation of the gut−liver axis.
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Affiliation(s)
- Hui Zhao
- Department of Nutrition and Food Hygiene, College of Public Health, Qingdao University, Qingdao 266071, China
| | - Xiang Gao
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Zhizuo Liu
- Women and Children’s Hospital Affiliated to Qingdao University, Qingdao 266071, China
| | - Lei Zhang
- Qingdao Institute for Food and Drug Control, Qingdao 266071, China
| | - Xuan Fang
- Qingdao Institute for Food and Drug Control, Qingdao 266071, China
| | - Jianping Sun
- Qingdao Centers for Disease Control and Prevention, Qingdao 266033, China
| | - Zhaofeng Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing 100191, China
- Key Laboratory of Food Safety Toxicology Research and Evaluation, Beijing 100191, China
- Correspondence: (Z.Z.); (Y.S.); Tel.: +86-10-82801575 (Z.Z.); +86-138-63980712 (Y.S.)
| | - Yongye Sun
- Department of Nutrition and Food Hygiene, College of Public Health, Qingdao University, Qingdao 266071, China
- Correspondence: (Z.Z.); (Y.S.); Tel.: +86-10-82801575 (Z.Z.); +86-138-63980712 (Y.S.)
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12
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Zhang L, Liao W, Huang Y, Wen Y, Chu Y, Zhao C. Global seaweed farming and processing in the past 20 years. FOOD PRODUCTION, PROCESSING AND NUTRITION 2022. [DOI: 10.1186/s43014-022-00103-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractSeaweed has emerged as one of the most promising resources due to its remarkable adaptability, short development period, and resource sustainability. It is an effective breakthrough to alleviate future resource crises. Algal resources have reached a high stage of growth in the past years due to the increased output and demand for seaweed worldwide. Several aspects global seaweed farming production and processing over the last 20 years are reviewed, such as the latest situation and approaches of seaweed farming. Research progress and production trend of various seaweed application are discussed. Besides, the challenges faced by seaweed farming and processing are also analyzed, and the related countermeasures are proposed, which can provide advice for seaweed farming and processing. The primary products, extraction and application, or waste utilization of seaweed would bring greater benefits with the continuous development and improvement of applications in various fields.
Graphical Abstract
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13
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Chen Y, Wang Q, Luo H, Deng S, Tian Y, Wang S. Mechanisms of the ethanol extract of Gelidium amansii for slow aging in high-fat male Drosophila by metabolomic analysis. Food Funct 2022; 13:10110-10120. [PMID: 36102920 DOI: 10.1039/d2fo02116a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gelidium amansii (GA) is a kind of red alga homologous to medicine and food and is distributed all over the world. Studies on GA are mainly focused on its polysaccharides, with little research on the ethanol extract. The ethanol extract of Gelidium amansii (GAE) was subjected to a reverse-phase column to obtain 7 components. Among them, 100% methanol solution (GAM), enriched with phytene-1,2-diol, exhibited the strongest DPPH free radical scavenging activity (IC50 = 0.17 mg mL-1). Subsequently, high-fat male flies (HMFs) were used as a model to explore the antioxidant and anti-aging effects of GAM in vivo. Studies showed that GAM can effectively prolong the lifespan of HMFs. When GAM concentrations were 0.2 and 1.0 mg mL-1, the average lifespan of HMFs was increased by 28.7 and 40.7%, respectively, while the longest lifespan of HMFs was increased by 20.55% and 32.88%, respectively. Further research revealed that GAM can significantly downregulate the levels of malondialdehyde (MDA) and protein carbonyl (PCO), and can significantly upregulate the levels of catalase (CAT) and total superoxide dismutase (T-SOD). In addition, by analyzing differential metabolites, we found that GAM relieves aging caused by oxidative stress by regulating amino acid, lipid, sugar, and energy metabolism. The GAM group significantly regulated the levels of adenine, cholic acid, glutamate, L-proline, niacin, and stachyose which tend to recover to the levels of the normal diet male fly (NMF) group. In general, our research provides ideas for the high-value utilization of GA and provides a lead compound for the research and development of anti-aging food or medicine.
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Affiliation(s)
- Yushi Chen
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Qishen Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Haitao Luo
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Shanggui Deng
- College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, Zhejiang 316022, China
| | - Yongqi Tian
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Shaoyun Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
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14
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Niu W, Chen Y, Wang L, Li J, Cui Z, Lv J, Yang F, Huo J, Zhang Z, Ju J. The combination of sodium alginate and chlorogenic acid enhances the therapeutic effect on ulcerative colitis by the regulation of inflammation and the intestinal flora. Food Funct 2022; 13:10710-10723. [PMID: 36173280 DOI: 10.1039/d2fo01619b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chlorogenic acid (CA) and sodium alginate (SA) each have good therapeutic effects on ulcerative colitis (UC) owing to their antioxidant and anti-inflammatory activity. This study aimed to investigate the effects of CA alone and in combination with SA on inflammatory cells and UC mice. In the Lipopolysaccharide (LPS)-induced RAW 264.7 inflammatory cell model, Nitric oxide (NO) and interleukin-6 (IL-6) levels were significantly lower after treatment with CA plus SA than with CA alone. In the DSS-induced UC mouse model, compared with CA alone, CA plus SA showed a better ability to alleviate weight loss, reduce the disease activity index (DAI), improve the colonic mucosa, reduce the expression of inflammatory factors in the serum and myeloperoxidase (MPO) in colonic tissue, increase superoxide dismutase (SOD) levels, protect the intestinal mucosa and regulate the abundance of Actinobacteriota, Lactobacillus, Bifidobacterium, Bacteroides, Subdoligranulum and Streptococcus. Thus, CA plus SA can improve the therapeutic efficacy of CA in UC by regulating inflammatory factors, oxidative stress, and the intestinal flora and by protecting ulcerative wounds. These findings broaden our understanding of the role of the combination of SA and CA in enhancing the effects of CA on UC and provide strategies for prevention and treatment.
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Affiliation(s)
- Wei Niu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Yuxuan Chen
- School of Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ligui Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Jia Li
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Zhao Cui
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Jiajie Lv
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Fuyan Yang
- Anhui University of Chinese Medicine, Hefei, China
| | - Jiege Huo
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Zhenhai Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Jianming Ju
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China. .,Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
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15
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Modulation of hyperglycemia by sodium alginate is associated with changes of serum metabolite and gut microbiota in mice. Carbohydr Polym 2022; 291:119359. [DOI: 10.1016/j.carbpol.2022.119359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/22/2022] [Accepted: 03/11/2022] [Indexed: 11/23/2022]
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16
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Li Y, Huang J, Zhang S, Yang F, Zhou H, Song Y, Wang B, Li H. Sodium alginate and galactooligosaccharides ameliorate metabolic disorders and alter the composition of the gut microbiota in mice with high-fat diet-induced obesity. Int J Biol Macromol 2022; 215:113-122. [PMID: 35718141 DOI: 10.1016/j.ijbiomac.2022.06.073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 05/27/2022] [Accepted: 06/11/2022] [Indexed: 12/12/2022]
Abstract
We aimed to investigate the effects of sodium alginate (SA) and galactooligosaccharides (GOS) on the metabolism and gut microbiota of high-fat diet (HFD)-fed obese mice. GOS and SA delayed high-fat diet-induced obesity, reduced the epididymal fat and liver indices, and improved the circulating lipid profile. Low- and high-dose GOS reduced weight gain by 48.8 % and 35.3 %, and low- and high-dose SA reduced it by 37.7 % and 34.4 %, respectively. GOS and SA reduced blood glucose concentration, probably by increasing the expression of glucose transporter 4. GOS and SA increased the expression of tight junction proteins (ZO-1 and occludin), reduced the D-lactic acid (D-LA) and lipopolysaccharide concentrations, and reduced the expression of toll-like receptors, consistent with improved intestinal barrier function. GOS and SA also increased the abundance of Bacteroidota, Bifidobacterium, and Lactobacillus; and reduced that of Patescibacteria in the gut. The abundance of Parabacteroides positively correlated with the circulating low-density lipoprotein-cholesterol (LDL-C) concentration; that of Lactobacillus negatively correlated with LDL-C, D-LA, and tumor necrosis factor-α concentration; and that of Bifidobacterium positively correlated with high-density lipoprotein-cholesterol concentration, according to Spearman correlation analysis. In conclusion, SA and GOS ameliorate obesity and the associated metabolic disorders in mice, and also modulate their gut microbial composition.
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Affiliation(s)
- Yao Li
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China
| | - Juan Huang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China
| | - Silu Zhang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China
| | - Fan Yang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China
| | - Haolin Zhou
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China
| | - Yang Song
- Department of Histology and Embryology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China
| | - Bing Wang
- Department of Immunology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China
| | - Huajun Li
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, PR China.
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Sulfated alginate oligosaccharide exerts antitumor activity and autophagy induction by inactivating MEK1/ERK/mTOR signaling in a KSR1-dependent manner in osteosarcoma. Oncogenesis 2022; 11:16. [PMID: 35418575 PMCID: PMC9008062 DOI: 10.1038/s41389-022-00390-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/12/2022] [Accepted: 03/18/2022] [Indexed: 11/08/2022] Open
Abstract
Alginate oligosaccharide (AOS) has the function to inhibit tumor progression and the sulfated modification can enhance the antitumor activity. To date, the function and mechanism of sulfated AOS (AOS-SO4) in tumors remain largely elusive. We prepared AOS by the enzymatic degradation of alginate, collected AOS-SO4 by sulfating following the canonical procedure. Using these materials, in vitro assays showed that both AOS and AOS-SO4 elicited antitumor effects in osteosarcoma cells. Sulfated modification significantly enhanced the antitumor activity. In addition, AOS-SO4 had obvious effects on cell cycle arrest, apoptosis, and autophagy induction in vitro and in vivo. Mechanistically, we observed that AOS-SO4 treatment triggered proapoptotic autophagy by inhibiting MEK1/ERK/mTOR signaling. The ERK activator reversed AOS-SO4-induced autophagy. More importantly, we found that KSR1 interacted with MEK1 and functioned as a positive regulator of MEK1 protein in osteosarcoma cells. High KSR1 expression was significantly associated with poor survival in osteosarcoma patients. Together, these results suggest that AOS-SO4 has a better antitumor effect in osteosarcoma by inhibiting MEK1/ERK/mTOR signaling, which is KSR1-dependent; thus, AOS-SO4 can be a new potential therapeutic candidate for the treatment of osteosarcoma.
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18
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Yang M, Zhou D, Xiao H, Fu X, Kong Q, Zhu C, Han Z, Mou H. Marine-derived uronic acid-containing polysaccharides: Structures, sources, production, and nutritional functions. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.02.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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19
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Ke YC, Chen TC, Tang RC, Lin JN, Lin FH. Development of resveratrol with thiolated alginate as a supplement to prevent nonalcoholic fatty liver disease (NAFLD). APL Bioeng 2022; 6:016102. [PMID: 35178496 PMCID: PMC8828268 DOI: 10.1063/5.0081695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/24/2022] [Indexed: 11/14/2022] Open
Abstract
Nowadays, nonalcoholic fatty liver disease is a common metabolic liver disease of all ages worldwide. However, current pharmacological and surgical treatments are accompanied with side effects and complications. EndoBarrier, a less invasive bariatric surgery, blocks the upper portion of the intestine to reduce nutrition absorption. To mimic the nutrient restriction effect of EndoBarrier, thiol-containing materials may bind to the thiol groups of the mucus with an enhanced mucoadhesive property. Here, we develop thiolated alginate with cysteine conjugation via an N-(3-dimethylaminopropyl)-N-ethylcarbodiimide/N-hydroxysuccinimide reaction. The alginate–cysteine (AC) exhibits excellent mucoadhesive properties and forms a physical barrier in the intestine to reduce absorption significantly, which was tested with both in vitro and in vivo mucoadhesive test and barrier function test. The nontoxicity property of AC was also proven with WST-1 and live and dead stain. In addition, AC demonstrates potent carrier properties of extending the release of resveratrol to improve the efficacy with the test of the transwell system in the release profile. In the long-term therapeutic evaluation, alginate cysteine with resveratrol (ACR) is orally administrated daily to mice with an methionine choline-deficient diet. The results of this in vivo study show that developed ACR could effectively alleviate fat degeneration in the liver and improve fat-related metabolic parameters in serum without hepatocellular damage and kidney dysfunction. In sum, AC was found to be mucoadhesive, reduce glucose absorption, alleviate inflammation, and decrease fatty degradation. This promising material exhibits the potential to be a supplement for nonalcoholic fatty liver disease.
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Affiliation(s)
- Yong-Chen Ke
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd., Taipei 10672, Taiwan
| | - Tzu-Chien Chen
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd., Taipei 10672, Taiwan
| | - Rui-Chian Tang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, No. 35, Keyan Rd., Zhunan, Miaoli County 35053, Taiwan
| | - Jhih-Ni Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd., Taipei 10672, Taiwan
| | - Feng-Huei Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd., Taipei 10672, Taiwan
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, No. 35, Keyan Rd., Zhunan, Miaoli County 35053, Taiwan
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20
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Yang Z, Wang H, Liu N, Zhao K, Sheng Y, Pang H, Shao K, Zhang M, Li S, He N. Algal polysaccharides and derivatives as potential therapeutics for obesity and related metabolic diseases. Food Funct 2022; 13:11387-11409. [DOI: 10.1039/d2fo02185d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potential and challenges of algal polysaccharides and their derivatives as potential therapeutic agents for obesity and its related metabolic diseases.
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Affiliation(s)
- Zizhen Yang
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Haoyu Wang
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Nian Liu
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Kunyi Zhao
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Yingying Sheng
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Hao Pang
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Kaidi Shao
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Mengyao Zhang
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Shangyong Li
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Ningning He
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
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21
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Low molecular weight fucoidan fraction LF2 improves metabolic syndrome via up-regulating PI3K-AKT-mTOR axis and increasing the abundance of Akkermansia muciniphila in the gut microbiota. Int J Biol Macromol 2021; 193:789-798. [PMID: 34743939 DOI: 10.1016/j.ijbiomac.2021.10.188] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/14/2021] [Accepted: 10/24/2021] [Indexed: 12/20/2022]
Abstract
Metabolic syndrome (MetS) is a pathological condition of a variety of metabolic abnormalities, which requires more urgent treatment and intervention. Fucoidan has been recommended as a supplement for health enhancement and disease management. Here, we first propose that the beneficial effect of low molecular weight fucoidan fraction LF2 in regulating metabolic syndrome induced by high-fat diet is similar to that of metformin, in terms of molecular mechanism and gut microbiota. The study found that LF2 significantly reduces fasting blood glucose, enhances insulin sensitivity and restores insulin homeostasis and lipid homeostasis. Moreover, LF2 reduced liver oxidative stress and inflammation, and improved hepatocyte steatosis. To decipher the mechanism behind this therapeutic effect, both the molecular mechanisms and gut microbiota were further analyzed. LF2 inhibited the activation of PI3K-Akt-mTOR axis and decreased the expression of SREBP-1c and PPARγ in liver. Interestingly, we found that LF2 and metformin have similar effects on gut microbiota, increasing the proportion of Verrucomicrobia and enriching the abundance of Akkermansia muciniphila, which is beneficial to host health. Collectively, our research clarifies the new application of fucoidan as a functional food for anti-MetS, and provides a new insight for fucoidan to exert systemic therapeutic effects from the perspective of molecular mechanism and gut microbiota.
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22
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Maruyama S, Segawa Y, Hashimoto H, Kitamura S, Kimura M, Osera T, Kurihara N. Role of alginate in the mechanism by which brown seaweed Saccharina japonica intake alleviates an increase in blood pressure in 2-kidney, 1-clip renovascular hypertensive rats. Clin Exp Hypertens 2021; 44:72-82. [PMID: 34724868 DOI: 10.1080/10641963.2021.1991943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND The intake of Saccharina japonica (SJ), a widely consumed brown seaweed, has been reported to decrease blood pressure (BP) in hypertensive rats. It has been suggested that this effect is related to an increase in fecal sodium excretion (SE) by alginate (Alg) to the gastrointestinal tract; however, the mechanism is still unclear. This study investigated how different seaweeds with different amounts of Alg suppressed BP increase and enhanced fecal SE in 2-kidney, 1-clip renovascular hypertensive (2K1C) rats given SJ diet. METHODS Rats with 2K1C or sham operation were fed a normal-/high-salt diet with some kinds of seaweeds (5.0%, w/w) or SJ extract with different Alg contents for 6 weeks. We measured systolic BP every week and mean arterial pressure at the end, and measured the total and molecular weights of Alg in each seaweed. Then, we evaluated the relationship of the Alg amount in each seaweed with the suppression of BP increase in 2K1C rats. Finally, urinary and fecal SE for 24 h was measured. RESULTS The intake of SJ, SJ extract, Saccharina ochotensis (SO) blades and SO roots suppressed BP increase in 2K1C rats, but the strength was not proportional to the amounts of Alg contained in the seaweeds. Although SJ intake increased fecal SE in 2K1C rats fed a high-salt diet, the fecal SE was much less than urinary SE. CONCLUSION The sodium excretion in feces by Alg in SJ may not be one of the major mechanisms by which SJ intake attenuates hypertension in 2K1C rats.
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Affiliation(s)
- Saki Maruyama
- Hygiene and Preventive Medicine, Kobe Women's University, Kobe, Japan
| | - Yukiko Segawa
- Hygiene and Preventive Medicine, Kobe Women's University, Kobe, Japan.,Cookery and Confectionery, Osaka Seikei College, Osaka, Japan
| | - Hiroko Hashimoto
- Hygiene and Preventive Medicine, Kobe Women's University, Kobe, Japan.,Nutrition, Osaka Seikei College, Osaka, Japan
| | - Saori Kitamura
- Hygiene and Preventive Medicine, Kobe Women's University, Kobe, Japan
| | - Mariko Kimura
- Faculty of Home Economics, Kobe Women's University, Kobe, Japan
| | - Tomoko Osera
- Hygiene and Preventive Medicine, Kobe Women's University, Kobe, Japan.,Nutrition and Health Sciences, Toyo University, Gunma, Japan
| | - Nobutaka Kurihara
- Hygiene and Preventive Medicine, Kobe Women's University, Kobe, Japan
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23
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Yao L, Yang P, Lin Y, Bi D, Yu B, Lin Z, Wu Y, Xu H, Hu Z, Xu X. The regulatory effect of alginate on ovalbumin-induced gut microbiota disorders. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104727] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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24
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Deng Z, Wu N, Wang J, Zhang Q. Dietary fibers extracted from Saccharina japonica can improve metabolic syndrome and ameliorate gut microbiota dysbiosis induced by high fat diet. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104642] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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25
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Liang B, Cai XY, Gu N. Marine Natural Products and Coronary Artery Disease. Front Cardiovasc Med 2021; 8:739932. [PMID: 34621803 PMCID: PMC8490644 DOI: 10.3389/fcvm.2021.739932] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/24/2021] [Indexed: 12/18/2022] Open
Abstract
Coronary artery disease is the major cause of mortality worldwide, especially in low- and middle-income earners. To not only reduce angina symptoms and exercise-induced ischemia but also prevent cardiovascular events, pharmacological intervention strategies, including antiplatelet drugs, anticoagulant drugs, statins, and other lipid-lowering drugs, and renin-angiotensin-aldosterone system blockers, are conducted. However, the existing drugs for coronary artery disease are incomprehensive and have some adverse reactions. Thus, it is necessary to look for new drug research and development. Marine natural products have been considered a valuable source for drug discovery because of their chemical diversity and biological activities. The experiments and investigations indicated that several marine natural products, such as organic small molecules, polysaccharides, proteins, and bioactive peptides, and lipids were effective for treating coronary artery disease. Here, we particularly discussed the functions and mechanisms of active substances in coronary artery disease, including antiplatelet, anticoagulant, lipid-lowering, anti-inflammatory, and antioxidant activities.
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Affiliation(s)
- Bo Liang
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Xin-Yi Cai
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Ning Gu
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
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Ejima R, Akiyama M, Sato H, Tomioka S, Yakabe K, Kimizuka T, Seki N, Fujimura Y, Hirayama A, Fukuda S, Hase K, Kim YG. Seaweed Dietary Fiber Sodium Alginate Suppresses the Migration of Colonic Inflammatory Monocytes and Diet-Induced Metabolic Syndrome via the Gut Microbiota. Nutrients 2021; 13:nu13082812. [PMID: 34444972 PMCID: PMC8401899 DOI: 10.3390/nu13082812] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 12/19/2022] Open
Abstract
Metabolic syndrome (MetS) is a multifactorial chronic metabolic disorder that affects approximately one billion people worldwide. Recent studies have evaluated whether targeting the gut microbiota can prevent MetS. This study aimed to assess the ability of dietary fiber to control MetS by modulating gut microbiota composition. Sodium alginate (SA) is a seaweed-derived dietary fiber that suppresses high-fat diet (HFD)-induced MetS via an effect on the gut microbiota. We observed that SA supplementation significantly decreased body weight gain, cholesterol levels, and fat weight, while improving glucose tolerance in HFD-fed mice. SA changed the gut microbiota composition and significantly increased the abundance of Bacteroides. Antibiotic treatment completely abolished the suppressive effects of SA on MetS. Mechanistically, SA decreased the number of colonic inflammatory monocytes, which promote MetS development, in a gut microbiota-dependent manner. The abundance of Bacteroides was negatively correlated with that of inflammatory monocytes and positively correlated with the levels of several gut metabolites. The present study revealed a novel food function of SA in preventing HFD-induced MetS through its action on gut microbiota.
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Affiliation(s)
- Ryuta Ejima
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (Y.F.); (K.H.)
| | - Masahiro Akiyama
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
| | - Hiroki Sato
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
- Kaigen Pharma Co., Ltd., Osaka 541-0045, Japan
| | - Sawako Tomioka
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (Y.F.); (K.H.)
| | - Kyosuke Yakabe
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (Y.F.); (K.H.)
| | - Tatsuki Kimizuka
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (Y.F.); (K.H.)
| | - Natsumi Seki
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (Y.F.); (K.H.)
| | - Yumiko Fujimura
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (Y.F.); (K.H.)
| | - Akiyoshi Hirayama
- Institute for Advanced Biosciences, Keio University, Yamagata 997-0052, Japan; (A.H.); (S.F.)
| | - Shinji Fukuda
- Institute for Advanced Biosciences, Keio University, Yamagata 997-0052, Japan; (A.H.); (S.F.)
- Transborder Medical Research Center, University of Tsukuba, Ibaraki 305-8575, Japan
- Intestinal Microbiota Project, Kanagawa Institute of Industrial Science and Technology, Kanagawa 210-0821, Japan
| | - Koji Hase
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (Y.F.); (K.H.)
| | - Yun-Gi Kim
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan; (R.E.); (M.A.); (H.S.); (S.T.); (K.Y.); (T.K.); (N.S.)
- Correspondence:
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Feng W, Liu J, Wang S, Hu Y, Pan H, Hu T, Guan H, Zhang D, Mao Y. Alginate oligosaccharide alleviates D-galactose-induced cardiac ageing via regulating myocardial mitochondria function and integrity in mice. J Cell Mol Med 2021; 25:7157-7168. [PMID: 34227740 PMCID: PMC8335675 DOI: 10.1111/jcmm.16746] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 05/23/2021] [Accepted: 05/25/2021] [Indexed: 12/21/2022] Open
Abstract
Ageing is a crucial risk factor for the development of age‐related cardiovascular diseases. Therefore, the molecular mechanisms of ageing and novel anti‐ageing interventions need to be deeply studied. Alginate oligosaccharide (AOS) possesses high pharmacological activities and beneficial effects. Our study was undertaken to investigate whether AOS could be used as an anti‐ageing drug to alleviate cardiac ageing. D‐galactose (D‐gal)‐induced C57BL/6J ageing mice were established by subcutaneous injection of D‐gal (200 mg·kg‐1·d‐1) for 8 weeks. AOS (50, 100 and 150 mg·kg‐1·d‐1) were administrated intragastrically for the last 4 weeks. As a result, AOS prevented cardiac dysfunction in D‐gal‐induced ageing mice, including partially preserved ejection fraction (EF%) and fractional shortening (FS%). AOS inhibited D‐gal‐induced up‐regulation of natriuretic peptides A (ANP), brain natriuretic peptide (BNP) and ageing markers p53 and p21 in a dose‐dependent manner. To further explore the potential mechanisms contributing to the anti‐ageing protective effect of AOS, the age‐related mitochondrial compromise was analysed. Our data indicated that AOS alleviated D‐gal‐induced cardiac ageing by improving mitochondrial biogenesis, maintaining the mitochondrial integrity and enhancing the efficient removal of impaired mitochondria. AOS also decreased the ROS production and oxidative stress status, which, in turn, further inhibiting cardiac mitochondria from being destroyed. Together, these results demonstrate that AOS may be an effective therapeutic agent to alleviate cardiac ageing.
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Affiliation(s)
- Wenjing Feng
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China.,Department of Epidemiology and Health Statistics, The School of Public Health of Qingdao University, Qingdao, China
| | - Jianya Liu
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shan Wang
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi Hu
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Pan
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ting Hu
- Key Laboratory of Marine Drugs, Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Marine Biomedical Research Institute of Qingdao, Qingdao, China
| | - Huashi Guan
- Key Laboratory of Marine Drugs, Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Dongfeng Zhang
- Department of Epidemiology and Health Statistics, The School of Public Health of Qingdao University, Qingdao, China
| | - Yongjun Mao
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
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Effect of in vitro digestion-fermentation of Ca(II)-alginate beads containing sugar and biopolymers over global antioxidant response and short chain fatty acids production. Food Chem 2020; 333:127483. [DOI: 10.1016/j.foodchem.2020.127483] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 06/25/2020] [Accepted: 07/01/2020] [Indexed: 12/15/2022]
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Cao Q, Zhao J, Xing M, Xiao H, Zhang Q, Liang H, Ji A, Song S. Current Research Landscape of Marine-Derived Anti-Atherosclerotic Substances. Mar Drugs 2020; 18:md18090440. [PMID: 32854344 PMCID: PMC7551282 DOI: 10.3390/md18090440] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 12/18/2022] Open
Abstract
Atherosclerosis is a chronic disease characterized by lipid accumulation and chronic inflammation of the arterial wall, which is the pathological basis for coronary heart disease, cerebrovascular disease and thromboembolic disease. Currently, there is a lack of low-cost therapeutic agents that effectively slow the progression of atherosclerosis. Therefore, the development of new drugs is urgently needed. The research and development of marine-derived drugs have gained increasing interest from researchers across the world. Many marine organisms provide a rich material basis for the development of atherosclerotic drugs. This review focuses on the latest technological advances in the structures and mechanisms of action of marine-derived anti-atherosclerotic substances and the challenges of the application of these substances including marine polysaccharides, proteins and peptides, polyunsaturated fatty acids and small molecule compounds. Here, we describe the theoretical basis of marine biological resources in the treatment of atherosclerosis.
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Affiliation(s)
- Qi Cao
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Jiarui Zhao
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Maochen Xing
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Han Xiao
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Qian Zhang
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Hao Liang
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Aiguo Ji
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
- Correspondence: (A.J.); (S.S.)
| | - Shuliang Song
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
- Correspondence: (A.J.); (S.S.)
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Polymannuronic acid prevents dopaminergic neuronal loss via brain-gut-microbiota axis in Parkinson's disease model. Int J Biol Macromol 2020; 164:994-1005. [PMID: 32710966 DOI: 10.1016/j.ijbiomac.2020.07.180] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Abstract
The study aims to investigate the potentially neuroprotective effects and underlying mechanisms for brown seaweed polysaccharide of polymannuronic acid (PM) against Parkinson's disease (PD) pathogenesis. PD model mice were pretreated with PM via oral gavage once per day for 4 weeks and the preventative effects of PM against neuronal loss together with its modulation on brain-gut-microbiota axis were systematically explored. The results showed PM administration improved motor functions by preventing dopaminergic neuronal loss in the substantia nigra pars compacta (SNpc) and enhanced contents of striatal homovanillic acid (HVA), serotonin (5-HT), 5-hydroxyindole acetic acid (5-HIAA) and γ-aminobutyric acid (GABA) in PD mice. PM significantly alleviated inflammation in gut, brain and systemic circulation as shown by reduced levels or expressions of pro-inflammatory cytokines concurrently and inhibited mitogen-activated protein kinases (MAPK) signaling pathway in mice colon. Meanwhile, PM greatly improved integrity of intestinal barrier and blood brain barrier (BBB) as indicated by increased expressions of tight junction associated proteins in both mice colon and SNpc. Further studies indicated PM treatment resulted in changes of gut microbial compositions, together with great alterations of digestion and metabolism of dietary proteins and fats, which led to surge increase of fecal short chain fatty acids (SCFAs) in the colon of PD mice. In conclusion, pre-administration of PM could provide neuroprotective effects against PD pathogenesis by suppressing inflammation in gut, brain and systemic circulation, and by improving integrity of intestinal barrier and BBB. PM might modulate brain-gut-microbiota axis, at least in part, via gut microbiota derived SCFAs as mediators.
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Xing M, Cao Q, Wang Y, Xiao H, Zhao J, Zhang Q, Ji A, Song S. Advances in Research on the Bioactivity of Alginate Oligosaccharides. Mar Drugs 2020; 18:E144. [PMID: 32121067 PMCID: PMC7142810 DOI: 10.3390/md18030144] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 12/12/2022] Open
Abstract
Alginate is a natural polysaccharide present in various marine brown seaweeds. Alginate oligosaccharide (AOS) is a degradation product of alginate, which has received increasing attention due to its low molecular weight and promising biological activity. The wide-ranging biological activity of AOS is closely related to the diversity of their structures. AOS with a specific structure and distinct applications can be obtained by different methods of alginate degradation. This review focuses on recent advances in the biological activity of alginate and its derivatives, including their anti-tumor, anti-oxidative, immunoregulatory, anti-inflammatory, neuroprotective, antibacterial, hypolipidemic, antihypertensive, and hypoglycemic properties, as well as the ability to suppress obesity and promote cell proliferation and regulate plant growth. We hope that this review will provide theoretical basis and inspiration for the high-value research developments and utilization of AOS-related products.
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Affiliation(s)
- Maochen Xing
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Qi Cao
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Yu Wang
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Han Xiao
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Jiarui Zhao
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Qing Zhang
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Aiguo Ji
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Shuliang Song
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
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Identification of lncRNAs and Genes Responsible for Fatness and Fatty Acid Composition Traits between the Tibetan and Yorkshire Pigs. Int J Genomics 2019; 2019:5070975. [PMID: 31281828 PMCID: PMC6589220 DOI: 10.1155/2019/5070975] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 02/10/2019] [Accepted: 03/03/2019] [Indexed: 12/15/2022] Open
Abstract
Tibetan pigs from the Tibetan Plateau are characterized with a significant phenotypic difference relative to lowland pigs. In this study, a significant difference of the fatness and fatty acid composition traits was observed between the Tibetan and Yorkshire pigs. To uncover the involved mechanism, the expression profile of long noncoding RNAs (lncRNAs) and genes was compared between them. After serial filtered steps, 1,964 lncRNAs were obtained through our computational pipeline. In total, 63 and 715 lncRNAs and genes were identified to be differentially expressed. Evidence from cis- and trans-targeting analysis of lncRNAs demonstrated that some lncRNAs, such as MSTRG.14097 and MSTRG.8034, played important roles in the fatness and fatty acid composition traits. Bioinformatics analysis revealed that many candidate genes were responsible for the two traits. Of these, FASN, ACACA, SCD, ME3, PDHB, ACSS1, ACSS2, and ACLY were identified, which functioned in regulating the level of hexadecanoic acid, hexadecenoic acid, octadecenoic acid, and monounsaturated fatty acid. And LPGAT1, PDK4, ACAA1, and ADIPOQ were associated with the content of stearic acid, octadecadienoic acid, and polyunsaturated fatty acid. Candidate genes, which were responsible for fatness trait, consisted of FGF2, PLAG1, ADIPOQ, IRX3, MIF, IL-34, ADAM8, HMOX1, Vav1, and TLR8. In addition, association analysis also revealed that 34 and 57 genes significantly correlated to the fatness and fatty acid composition trait, respectively. Working out the mechanism caused by these lncRNAs and candidate genes is proven to be complicated but is invaluable to our understanding of fatness and fatty acid composition traits.
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Overview on the Antihypertensive and Anti-Obesity Effects of Secondary Metabolites from Seaweeds. Mar Drugs 2018; 16:md16070237. [PMID: 30011911 PMCID: PMC6070913 DOI: 10.3390/md16070237] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 06/20/2018] [Accepted: 07/12/2018] [Indexed: 12/26/2022] Open
Abstract
Hypertension and obesity are two significant factors that contribute to the onset and exacerbation of a cascade of mechanisms including activation of the sympathetic and renin-angiotensin systems, oxidative stress, release of inflammatory mediators, increase of adipogenesis and thus promotion of systemic dysfunction that leads to clinical manifestations of cardiovascular diseases. Seaweeds, in addition to their use as food, are now unanimously acknowledged as an invaluable source of new natural products that may hold noteworthy leads for future drug discovery and development, including in the prevention and/or treatment of the cardiovascular risk factors. Several compounds including peptides, phlorotannins, polysaccharides, carotenoids, and sterols, isolated from brown, red and green macroalgae exhibit significant anti-hypertensive and anti-obesity properties. This review will provide a comprehensive overview of the recent advances on bioactive pure compounds isolated from different seaweed sources focusing on their potential use as drugs to treat or prevent hypertension and obesity. On the other hand, although it is obvious that macroalgae represent promising sources of antihypertensive and anti-obesity compounds, it is also clear that further efforts are required to fully understand their cellular mechanisms of action, to establish structure-inhibition relationships and mainly to evaluate them in pre-clinical and clinical trials.
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