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Ye Y, Li M, Chen W, Wang H, He X, Liu N, Guo Z, Zheng C. Natural polysaccharides as promising reno-protective agents for the treatment of various kidney injury. Pharmacol Res 2024; 207:107301. [PMID: 39009291 DOI: 10.1016/j.phrs.2024.107301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/13/2024] [Accepted: 07/07/2024] [Indexed: 07/17/2024]
Abstract
Renal injury, a prevalent clinical outcome with multifactorial etiology, imposes a substantial burden on society. Currently, there remains a lack of effective management and treatments. Extensive research has emphasized the diverse biological effects of natural polysaccharides, which exhibit promising potential for mitigating renal damage. This review commences with the pathogenesis of four common renal diseases and the shared mechanisms underlying renal injury. The renoprotective roles of polysaccharides in vivo and in vitro are summarized in the following five aspects: anti-oxidative stress effects, anti-apoptotic effects, anti-inflammatory effects, anti-fibrotic effects, and gut modulatory effects. Furthermore, we explore the structure-activity relationship and bioavailability of polysaccharides in relation to renal injury, as well as investigate their utility as biomaterials for alleviating renal injury. The clinical experiments of polysaccharides applied to patients with chronic kidney disease are also reviewed. Broadly, this review provides a comprehensive perspective on the research direction of natural polysaccharides in the context of renal injury, with the primary aim to serve as a reference for the clinical development of polysaccharides as pharmaceuticals and prebiotics for the treatment of kidney diseases.
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Affiliation(s)
- Yufei Ye
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Maoting Li
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Nephrology, Naval Medical Center of PLA, Second Military Medical University/Naval Medical University, 338 West Huaihai Road, Shanghai 200052, China
| | - Wei Chen
- Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Hongrui Wang
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xuhui He
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Nanmei Liu
- Department of Nephrology, Naval Medical Center of PLA, Second Military Medical University/Naval Medical University, 338 West Huaihai Road, Shanghai 200052, China.
| | - Zhiyong Guo
- Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China.
| | - Chengjian Zheng
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China.
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Xia Q, Liang T, Zhou Y, Liu J, Tang Y, Liu F. Recent Advances in Biomedical Nanotechnology Related to Natural Products. Curr Pharm Biotechnol 2024; 25:944-961. [PMID: 37605408 DOI: 10.2174/1389201024666230821090222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/24/2023] [Accepted: 07/07/2023] [Indexed: 08/23/2023]
Abstract
Natural product processing via nanotechnology has opened the door to innovative and significant applications in medical fields. On one hand, plants-derived bioactive ingredients such as phenols, pentacyclic triterpenes and flavonoids exhibit significant pharmacological activities, on another hand, most of them are hydrophobic in nature, posing challenges to their use. To overcome this issue, nanoencapsulation technology is employed to encapsulate these lipophilic compounds and enhance their bioavailability. In this regard, various nano-sized vehicles, including degradable functional polymer organic compounds, mesoporous silicon or carbon materials, offer superior stability and retention for bioactive ingredients against decomposition and loss during delivery as well as sustained release. On the other hand, some naturally occurring polymers, lipids and even microorganisms, which constitute a significant portion of Earth's biomass, show promising potential for biomedical applications as well. Through nano-processing, these natural products can be developed into nano-delivery systems with desirable characteristics for encapsulation a wide range of bioactive components and therapeutic agents, facilitating in vivo drug transport. Beyond the presentation of the most recent nanoencapsulation and nano-processing advancements with formulations mainly based on natural products, this review emphasizes the importance of their physicochemical properties at the nanoscale and their potential in disease therapy.
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Affiliation(s)
- Qing Xia
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Tingting Liang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Yue Zhou
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Jun Liu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Yue Tang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Feila Liu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
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Hao Y, Lao S, Liu H, Chen X, Ye G, Wang Z, Liao W. Isolation and characterization of a nephroprotective polysaccharide from Dendrobium chrysotoxum Lindl against LPS-induced acute kidney injury mice. Int J Biol Macromol 2023; 253:126614. [PMID: 37652331 DOI: 10.1016/j.ijbiomac.2023.126614] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/12/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
The structure and bioactivity of a novel polysaccharide from Dendrobium Chrysotoxum Lindl (DCP-1) were investigated. The crude polysaccharides of Dendrobium Chrysotoxum Lindl (DCP) were extracted by hot water extraction, and the protein was removed by enzymatic hydrolysis and Sevage. After purification, the chemical structure of polysaccharides was identified by infrared spectroscopy, methylation analysis and nuclear magnetic resonance spectroscopy. Then, a mouse model of acute kidney injury (AKI) was constructed using lipopolysaccharide (LPS), and pretreated with DCP. Structure characterization demonstrated that the number-average molecular weight and mass average molar mass of DCP-1 were 28.43 kDa and 15.00 kDa, respectively. DCP-1 mainly consisted of mannose (37.8 %) and glucose (55.6 %). The main linkage types of DCP-1 were contained 1,4-Linked Manp and 1,4-Linked Glcp. And DCP-1 was demonstrated to be an O-acetylglucomannan with β-ᴅ-configuration in pyranoid form. Besides, the bioactivity of DCP was further investigated. The results showed that DCP exhibited notable anti-inflammatory activity in LPS-induced AKI mice. After treated with DCP, the creatinine (CREA) and urea nitrogen (BUN) in serum were successfully down-regulated in AKI mice. DCP treatment prevented the characteristic morphological changes of LPS-induced renal tubular injury. The results showed that DCP treatment significantly reduced the concentration of oxidative damage indicators (MDA, SOD) and the expression of inflammatory indices (TNF-α, IL-6, MCP-1, COX-2). In general, the newly extracted polysaccharide DCP showed excellent nephroprotective effect, which enabled it to be an ideal natural medicine for kidney diseases therapy.
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Affiliation(s)
- Yuting Hao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China
| | - Shenghui Lao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China
| | - Hailin Liu
- Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xiao Chen
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China
| | - Guangying Ye
- Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zaihua Wang
- Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Wenzhen Liao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China.
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Li XY, Chen HR, Kuang DD, Pan LH, Li QM, Luo JP, Zha XQ. Laminaria japonica polysaccharide attenuates podocyte epithelial-mesenchymal transformation via TGF-β1-mediated Smad3 and p38MAPK pathways. Int J Biol Macromol 2023; 241:124637. [PMID: 37121417 DOI: 10.1016/j.ijbiomac.2023.124637] [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: 12/03/2022] [Revised: 04/14/2023] [Accepted: 04/24/2023] [Indexed: 05/02/2023]
Abstract
In the present work, we explored the interventional effect and potential mechanism of a purified Laminaria japonica polysaccharide (LJP61A) on podocyte epithelial-mesenchymal transition (EMT) in TGF-β1-induced podocytes and adriamycin-treated mice. Results showed that compared to the model groups, LJP61A significantly up-regulated the levels of epithelial markers (Nephrin, WT-1, podocin) and down-regulated the levels of mesenchymal markers (α-SMA, FN1) in vitro and in vivo, thus preventing EMT-like morphological changes of podocytes, proteinuria and kidney injury. Smad3 and p38MAPK are two central pathways mediating podocyte EMT activated by TGF-β1. We found that LJP61A suppressed TGF-β1-induced activation of Smad3, Smad4 and p38MAPK in vitro and in vivo. Moreover, the inhibitory actions of LJP61A on podocyte EMT were synergistically strengthened by Smad3 inhibitor SIS3 and p38MAPK inhibitor SB203580. Taken together, these findings revealed that LJP61A could prevent podocyte EMT, which might be related to the inhibition of TGF-β1-mediated Smad3 and p38MAPK pathways.
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Affiliation(s)
- Xue-Ying Li
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; School of Food and Biological Engineering, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Hao-Ran Chen
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; School of Food and Biological Engineering, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Dan-Dan Kuang
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; School of Food and Biological Engineering, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Li-Hua Pan
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; School of Food and Biological Engineering, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Qiang-Ming Li
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; School of Food and Biological Engineering, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Jian-Ping Luo
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; School of Food and Biological Engineering, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Xue-Qiang Zha
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; School of Food and Biological Engineering, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China; Key Laboratory of Metabolism and Regulation for Major Disease of Anhui Higher Education Institutes, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, People's Republic of China.
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Wang R, Zeng M, Zhang B, Zhang Q, Xie S, Hu Y, Fan R, Wang M, Yu X, Zhang Y, Zheng X, Feng W. Epimedium sagittatum Maxim ameliorates adriamycin-induced nephropathy by restraining inflammation and apoptosis via the PI3K/AKT signaling pathway. Immun Inflamm Dis 2023; 11:e904. [PMID: 37382268 DOI: 10.1002/iid3.904] [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: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Modern pharmacological studies show that Epimedium sagittatum Maxim (EPI) has antioxidant, antiapoptotic, anti-inflammatory effects. However, the effects of EPI on adriamycin-induced nephropathy are unclear. AIM The main purpose of this study is to investigate the effects of EPI on adriamycin-induced nephropathy in rats. METHODS The chemical composition of EPI was detected by high performance liquid chromatography. Network pharmacology was used to collect the effects of EPI on adriamycin nephropathy; renal histological changes, podocyte injury, inflammatory factors, oxidative stress levels, apoptosis levels, and the PI3K/AKT signaling pathway were examined. Moreover, analyze the effects of icariin (the representative component of EPI) on adriamycin-induced apoptosis and PI3K/AKT signaling pathway of NRK-52e cells. RESULTS Network pharmacological results suggested that EPI may ameliorate adriamycin-induced nephropathy by inhibiting inflammatory response and regulating the PI3K/AKT signaling pathway. The experimental results showed that EPI could improve pathological injury, renal function, podocyte injury, and inhibit inflammation, oxidative stress, apoptosis in adriamycin-induced nephropathy rats through the PI3K/AKT signaling pathway. Furthermore, icariin inhibited adriamycin-induced mitochondrial apoptosis in NRK-52e cells. CONCLUSION This study suggested that EPI ameliorates adriamycin-induced nephropathy by reducing inflammation and apoptosis through the PI3K/AKT signaling pathway, icariin may be the pharmacodynamic substance basis for this effect.
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Affiliation(s)
- Ru Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Mengnan Zeng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Beibei Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Qinqin Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Shuangshuang Xie
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Yingbo Hu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Ruyi Fan
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Mengya Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Xiao Yu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Yuhan Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Xiaoke Zheng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Weisheng Feng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
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Lin TY, Lo HC, Qiu WL, Chao CH, Lu MK, Hsu HY. Biochemical characterization and anti-cancer activity of tangential flow filtration system assisted purification of fucoglucan from Laminaria japonica. Int J Biol Macromol 2023; 227:1-9. [PMID: 36528139 DOI: 10.1016/j.ijbiomac.2022.12.078] [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: 08/02/2022] [Revised: 11/15/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022]
Abstract
Polysaccharide from Laminaria japonica (LJPS) exhibits multiple biological functions. However, we found that crude LJPS doesn't show good anti-lung cancer activity in this study. We therefore used tangential flow filtration (TFF) system to optimize the anticancer activity of LJPS. We divided the crude LJPS into two fractions by TFF system with a 10 kDa filter and denoted as retentate (10K-R) and filtration (10K-F). The chemical assay revealed that the main molecular mass of 10K-R and 10K-F is about 985 and 3 kDa, respectively. The main components of 10K-R include fucose (19.3 %), and glucose (59.5 %); while glucose (88.6 %) is a major component of 10K-F. Biological functions showed that 10K-R but not 10K-F inhibited the viability and mobility of cancer cells. 10K-R downregulated expressions of transforming growth factor β receptor and Slug, and inhibited intracellular signaling molecules, including FAK, AKT, ERK1/2, and Smad2. This study is the first concept to purify the polysaccharide by TFF system and showed the potential mechanism of 10K-R inhibited cancer cells.
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Affiliation(s)
- Tung-Yi Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Hung-Chih Lo
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chi-Hsein Chao
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Mei-Kuang Lu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan.
| | - Hsien-Yeh Hsu
- Institute of Taiwan Fucoidan Development, Taipei, Taiwan; Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Zhou N, Zhao Y, Zhang L, Ning Y. Protective effects of black onion polysaccharide on liver and kidney injury in T2DM rats through the synergistic impact of hypolipidemic and antioxidant abilities. Int J Biol Macromol 2022; 223:378-390. [PMID: 36368355 DOI: 10.1016/j.ijbiomac.2022.11.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 11/10/2022]
Abstract
In this study, the synergistic effects of black onion on the hypolipidemic and antioxidant activities in T2DM rats induced by a high-fat-diet and alloxan were investigated. The results showed that the fasting blood glucose of diabetic rats was significantly decreased after treatment with black onion polysaccharide (p < 0.01). Blood lipid analysis indicated that black onion polysaccharide could significantly improve the abnormal metabolism of blood lipids caused by diabetes. In addition, the MDA and ROS of the diabetic rats treated with black onion polysaccharide were significantly reduced; moreover, SOD was increased, indicating the excellent antioxidant activity of black onion polysaccharide. A histological examination clearly showed that black onion polysaccharide could improve the histological morphology of the liver and kidney. Furthermore, the indices of liver and kidney function were restored. These results indicate that black onion polysaccharide can reduce blood glucose and simultaneously show synergistic effects of hypoglycemic and antioxidant activities in diabetic rats. Therefore, black onion polysaccharide may alleviate liver and kidney function injury by improving the "two-hit" mechanism and can thus be used as a potential functional food to prevent diabetes and its complications.
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Affiliation(s)
- Ning Zhou
- School of Life Science, Inner Mongolia University, Hohhot 010020, PR China
| | - Ye Zhao
- School of Life Science, Inner Mongolia University, Hohhot 010020, PR China
| | - Lingang Zhang
- School of Life Science, Inner Mongolia University, Hohhot 010020, PR China.
| | - Yuebao Ning
- School of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou 014010, PR China.
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Han X, Yang Y, Qi J, Zhang M, Xue Y, Chu X, Jia Q, Sun S, Guan S. Protective effects and possible mechanism of 6-gingerol against arsenic trioxide-induced nephrotoxicity based on network pharmacological analysis and experimental validation. Int Immunopharmacol 2022; 110:108926. [PMID: 35728306 DOI: 10.1016/j.intimp.2022.108926] [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: 04/06/2022] [Revised: 05/27/2022] [Accepted: 06/03/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND OBJECTIVE Nephrotoxicity induced by the chemotherapeutic drug arsenic trioxide (ATO) is often overlooked, and the underlying mechanisms remain poorly understood. Based on network pharmacology and experimental validation, this study investigates the protection of 6-gingerol (6G) against ATO-induced nephrotoxicity and the potential mechanisms. METHODS We screened and collected 6G and disease-related targets and then imported the interaction targets into a String database to construct protein-protein interaction (PPI) networks. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed using the Database for Annotation, Visualization and Integrated Discovery (DAVID). Mice were injected intraperitoneally with ATO (5 mg/kg) for seven days to induce nephrotoxicity, and then the histological morphology of the kidneys, biochemical indices of serum and tissues, and associated protein expressions were observed. RESULTS The network pharmacology results revealed that the effects of 6G against nephrotoxicity are closely related to apoptosis, and the MAPKs pathway was screened for validation. In animal experiments, 6G improved the histopathological morphology of the kidneys, reduced the levels of renal function markers, enhanced antioxidant activity, and decreased the levels of inflammation. Furthermore, 6G reduced apoptotic cells in kidney tissues, decreased the levels of Bax and c-Caspase-3, and increased the level of Bcl-2. The results of immunohistochemistry and western blotting revealed that 6G significantly inhibited the expressions of p-p38, p-ERK, and p-JNK. CONCLUSION The results comprehensively demonstrate the protective effects of 6G against ATO-induced nephrotoxicity. The effects are related to anti-oxidant, anti-inflammatory, and anti-apoptotic properties, possibly through inhibition of the MAPKs pathway.
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Affiliation(s)
- Xue Han
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China; Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
| | - Yakun Yang
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
| | - Jiaying Qi
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
| | - Muqing Zhang
- College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China; Affiliated Hospital, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
| | - Yucong Xue
- College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
| | - Xi Chu
- The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qingzhong Jia
- School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei, China.
| | - Shijiang Sun
- Affiliated Hospital, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China.
| | - Shengjiang Guan
- Affiliated Hospital, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China; School of Basic Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China.
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Preparation of Doxorubicin-Loaded Carboxymethyl-β-Cyclodextrin/Chitosan Nanoparticles with Antioxidant, Antitumor Activities and pH-Sensitive Release. Mar Drugs 2022; 20:md20050278. [PMID: 35621929 PMCID: PMC9146362 DOI: 10.3390/md20050278] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 01/16/2023] Open
Abstract
In this study, chitosan nanoparticles (HF-CD NPs) were synthesized by an ionic gelation method using negatively charged carboxymethyl-β-cyclodextrin and positively charged 2-hydroxypropyltrimethyl ammonium chloride chitosan bearing folic acid. The surface morphology of HF-CD NPs was spherical or oval, and they possessed relatively small particle size (192 ± 8 nm) and positive zeta potential (+20 ± 2 mV). Meanwhile, doxorubicin (Dox) was selected as model drug to investigate the prepared nanoparticles’ potential to serve as a drug delivery carrier. The drug loading efficiency of drug-loaded nanoparticles (HF-Dox-CD NPs) was 31.25%. In vitro release profiles showed that Dox release of nanoparticles represented a pH-sensitive sustained and controlled release characteristic. At the same time, the antioxidant activity of nanoparticles was measured, and chitosan nanoparticles possessed good antioxidant activity and could inhibit the lipid peroxidation inside the cell and avoid material infection. Notably, CCK-8 assay testified that the nanoparticles were safe drug carriers and significantly enhanced the antitumor activity of Dox. The nanoparticles possessed good antioxidant activity, pH-sensitive sustained controlled release, enhanced antitumor activity, and could be expected to serve as a drug carrier in future with broad application prospects.
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Feng Y, Wassie T, Gan R, Wu X. Structural characteristics and immunomodulatory effects of sulfated polysaccharides derived from marine algae. Crit Rev Food Sci Nutr 2022; 63:7180-7196. [PMID: 35193454 DOI: 10.1080/10408398.2022.2043823] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Marine algae are becoming an important source of valuable candidates of functional food that remain unexplored. Compositional analysis showed that marine algae contain essential nutrients, such as carbohydrates, proteins, fats, and minerals, of which polysaccharides are the main bioactive component. Depending on the source, marine algae polysaccharides are sulfated, which have diverse structures and compositions that influence their biological activities. A growing body of evidence has demonstrated that sulfated polysaccharides derived from marine algae (SPs) exhibit various bioactivities, especially immunomodulation. This review aims at summarizing the structural characteristics of SPs, their immunomodulatory effects, and the structural-immunomodulatory activity relationships between them from articles in recent decade, in order to provide a theoretical basis for the further applications of SPs as promising food or feed additives and possible health products to modulate the immune response.
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Affiliation(s)
- Yingying Feng
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Teketay Wassie
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, Hunan, China
| | - Renyou Gan
- Research Center for Plants and Human Health, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science and Technology Center, Chengdu, China
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), Sichuan Engineering & Technology Research Center of Coarse Cereal Industralization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Xin Wu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, Hunan, China
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Aqueous Two-Phase Extraction, Antioxidant and Renal Protective Effects of Polysaccharides from Spores of Cordyceps cicadae. Processes (Basel) 2022. [DOI: 10.3390/pr10020348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to investigate the aqueous two-phase extraction (ATPE), in vitro antioxidant, and in vivo renal protective effects of polysaccharides from spores of Cordyceps cicadae (CCSPs). The optimal ATPE parameters were as follows: an extraction temperature of 61 °C, an ammonium sulfate concentration of 18%, an ethanol concentration of 40%, a liquid-to-material ratio of 33 mL/g, and an extraction time of 60 min. Under these parameters, the CCSPs yield was 6.96 ± 0.11% (n = 3), which was consistent with the predicted yield (6.92%). Among the three purified polysaccharide fractions, CCSP-2 displayed stronger scavenging activities against DPPH radicals and hydroxyl radicals, reducing power and ferrous-ion-chelating ability to a greater extent than CCSP-1 and CCSP-3. CCSP-2 exhibited its protective effect in lipopolysaccharide (LPS)-induced septic acute kidney injury (AKI) mice by significantly alleviating renal edema; reducing 24 h urine protein, blood urea nitrogen (BUN), and serum creatinine (SCr); inhibiting the release of serum proinflammatory cytokines; boosting the activities of antioxidant enzymes; and reducing the levels of oxidative damage products. These results suggest that CCSP-2 exerted its protective effect against LPS-induced septic AKI in mice through anti-inflammatory and antioxidant pathways.
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12
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Mi Y, Chen Y, Gu G, Miao Q, Tan W, Li Q, Guo Z. New synthetic adriamycin-incorporated chitosan nanoparticles with enhanced antioxidant, antitumor activities and pH-sensitive drug release. Carbohydr Polym 2021; 273:118623. [PMID: 34561017 DOI: 10.1016/j.carbpol.2021.118623] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 10/20/2022]
Abstract
In this paper, adriamycin-incorporated chitosan nanoparticles were synthesized by ionic gelation using negatively charged carboxymethyl chitosan and positively charged 2-hydroxypropyltrimethyl ammonium chloride chitosan. The method was efficient to obtain nanoparticles with low polydispersity index and small hydrodynamic diameter. And high zeta potential value indicated that nanoparticles had good stability. The adriamycin release of nanoparticles represented a significant response to pH, with the fastest release in phosphate buffer solution at pH 6.8. Meanwhile, the antioxidant efficiency of nanoparticles was assayed, and nanoparticles represented significant enhancement in radicals scavenging activity. The assay of cell viability by CCK-8 test exhibited that nanoparticles led to statistically significant decrease in cell viability for four kinds of cancer cells (HEPG-2, A549, MCF-7, and BGC-823). It was indicated that the nanoparticles with enhanced biological activity, reduced cytotoxicity, and pH-sensitive release could be served as potential drug carrier in drug delivery system.
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Affiliation(s)
- Yingqi Mi
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuan Chen
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Guodong Gu
- Alliance Pharma, Inc., 17 Lee Boulevard, Malvern, PA 19355, USA
| | - Qin Miao
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenqiang Tan
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Qing Li
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Zhanyong Guo
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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13
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Kang HG, Lee HK, Cho KB, Park SI. A Review of Natural Products for Prevention of Acute Kidney Injury. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:1266. [PMID: 34833485 PMCID: PMC8623373 DOI: 10.3390/medicina57111266] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/09/2021] [Accepted: 11/15/2021] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND OBJECTIVES acute kidney injury (AKI), formerly called acute renal failure (ARF), is commonly defined as an abrupt decline in renal function, clinically manifesting as a reversible acute increase in nitrogen waste products-measured by blood urea nitrogen (BUN) and serum creatinine levels-over the course of hours to weeks. AKI occurs in about 20% of all hospitalized patients and is more common in the elderly. Therefore, it is necessary to prevent the occurrence of AKI, and to detect and treat early, since it is known that a prolonged period of kidney injury increases cardiovascular complications and the risk of death. Despite advances in modern medicine, there are no consistent treatment strategies for preventing the progression to chronic kidney disease. Through many studies, the safety and efficacy of natural products have been proven, and based on this, the time and cost required for new drug development can be reduced. In addition, research results on natural products are highly anticipated in the prevention and treatment of various diseases. In relation to AKI, many papers have reported that many natural products can prevent and treat AKI. CONCLUSIONS in this paper, the results of studies on natural products related to AKI were found and summarized, and the mechanism by which the efficacy of AKI was demonstrated was reviewed. Many natural products show that AKI can be prevented and treated, suggesting that these natural products can help to develop new drugs. In addition, we may be helpful to elucidate additional mechanisms and meta-analysis in future natural product studies.
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Affiliation(s)
- Hyun Goo Kang
- Department of Optometry, Catholic Kwandong University, Gangneung 20561, Korea;
| | - Hyun Ki Lee
- School of Game, DongYang University, Dongducheon 11307, Korea;
| | - Kyu Bong Cho
- Department of Biomedical Laboratory Science, Shinhan University, Uijeonbu 11644, Korea;
| | - Sang Il Park
- Department of Optometry, Catholic Kwandong University, Gangneung 20561, Korea;
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14
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Handa T, Mori KP, Ishii A, Ohno S, Kanai Y, Watanabe-Takano H, Yasoda A, Kuwabara T, Takahashi N, Mochizuki N, Mukoyama M, Yanagita M, Yokoi H. Osteocrin ameliorates adriamycin nephropathy via p38 mitogen-activated protein kinase inhibition. Sci Rep 2021; 11:21835. [PMID: 34750411 PMCID: PMC8575949 DOI: 10.1038/s41598-021-01095-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/21/2021] [Indexed: 11/09/2022] Open
Abstract
Natriuretic peptides exert multiple effects by binding to natriuretic peptide receptors (NPRs). Osteocrin (OSTN) binds with high affinity to NPR-C, a clearance receptor for natriuretic peptides, and inhibits degradation of natriuretic peptides and consequently enhances guanylyl cyclase-A (GC-A/NPR1) signaling. However, the roles of OSTN in the kidney have not been well clarified. Adriamycin (ADR) nephropathy in wild-type mice showed albuminuria, glomerular basement membrane changes, increased podocyte injuries, infiltration of macrophages, and p38 mitogen-activated protein kinase (MAPK) activation. All these phenotypes were improved in OSTN- transgenic (Tg) mice and NPR3 knockout (KO) mice, with no further improvement in OSTN-Tg/NPR3 KO double mutant mice, indicating that OSTN works through NPR3. On the contrary, OSTN KO mice increased urinary albumin levels, and pharmacological blockade of p38 MAPK in OSTN KO mice ameliorated ADR nephropathy. In vitro, combination treatment with ANP and OSTN, or FR167653, p38 MAPK inhibitor, reduced Ccl2 and Des mRNA expression in murine podocytes (MPC5). OSTN increased intracellular cyclic guanosine monophosphate (cGMP) in MPC5 through GC-A. We have elucidated that circulating OSTN improves ADR nephropathy by enhancing GC-A signaling and consequently suppressing p38 MAPK activation. These results suggest that OSTN could be a promising therapeutic agent for podocyte injury.
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Affiliation(s)
- Takaya Handa
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 6068507, Japan
| | - Keita P Mori
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 6068507, Japan.,Department of Nephrology and Dialysis, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan.,TMK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akira Ishii
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 6068507, Japan
| | - Shoko Ohno
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 6068507, Japan
| | - Yugo Kanai
- Department of Diabetes Mellitus and Endocrinology, Osaka Red Cross Hospital, Osaka, Japan
| | - Haruko Watanabe-Takano
- Department of Cell Biology, National Cerebral and Cardiovascular Center, Research Institute, Suita, Japan
| | - Akihiro Yasoda
- Clinical Research Center, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Takashige Kuwabara
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Nobuyuki Takahashi
- Department of Clinical Pharmacology and Therapeutics, Tohoku University Graduate School of Pharmaceutical Sciences and Medicine, Sendai, Japan
| | - Naoki Mochizuki
- Department of Cell Biology, National Cerebral and Cardiovascular Center, Research Institute, Suita, Japan
| | - Masashi Mukoyama
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 6068507, Japan.,Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan
| | - Hideki Yokoi
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, Kyoto, 6068507, Japan.
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15
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Protective Effects of Ulva lactuca Polysaccharide Extract on Oxidative Stress and Kidney Injury Induced by D-Galactose in Mice. Mar Drugs 2021; 19:md19100539. [PMID: 34677438 PMCID: PMC8538648 DOI: 10.3390/md19100539] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/21/2021] [Accepted: 09/21/2021] [Indexed: 12/16/2022] Open
Abstract
Reactive oxygen species (ROS) are the key factors that cause many diseases in the human body. Polysaccharides from seaweed have been shown to have significant antioxidant activity both in vivo and in vitro. The ameliorative effect of Ulva lactuca polysaccharide extract (UPE) on renal injury induced by oxidative stress was analyzed. As shown by hematoxylin–eosin staining results, UPE can significantly improve the kidney injury induced by D-galactose (D-gal). Additionally, the protective mechanism of UPE on the kidney was explored. The results showed that UPE could decrease the levels of serum creatinine (Scr), blood urea nitrogen (BUN), serum cystatin C (Cys-C), lipid peroxidation, protein carbonylation, and DNA oxidative damage (8-OHdG) and improve kidney glutathione content. Moreover, UPE significantly increased the activities of superoxide dismutase and glutathione peroxidase and total antioxidant activity in mice. UPE also decreased the levels of inflammatory cytokines TNF-α and IL-6. Further investigation into the expression of apoptotic protein caspase-3 showed that UPE decreased the expression of apoptotic protein caspase-3. These results indicate that UPE has a potential therapeutic effect on renal injury caused by oxidative stress, providing a new theoretical basis for the treatment of oxidative damage diseases in the future.
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16
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Afsar B, Afsar RE, Demiray A, Covic A, Kanbay M. Deciphering nutritional interventions for podocyte structure and function. Pharmacol Res 2021; 172:105852. [PMID: 34450318 DOI: 10.1016/j.phrs.2021.105852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/22/2021] [Accepted: 08/22/2021] [Indexed: 12/11/2022]
Abstract
Despite increasing awareness and therapeutic options chronic kidney disease (CKD) is still and important health problem and glomerular diseases constitute and important percentage of CKD. Proteinuria/albuminuria is not just a marker; but it also plays a direct pathogenic role in renal disease progression of CKD. Glomerular filtration barrier (GFB) which consists of fenestrated endothelial cells, fused basal membrane and interdigitating podocyte foot process and filtration slits between foot process is the major barrier for proteinuria/albuminuria. Many glomerular diseases are characterized by disruption of GFB podocytes, foot process and slit diaphragm. Many proteinuric diseases are non-specifically targeted by therapeutic agents such as steroids and calcineurin inhibitors with systemic side effects. Thus, there is unmet need for more efficient and less toxic therapeutic options to treat glomerular diseases. In recent years, modification of dietary intake, has been gained to treat pathologic processes introducing the concept of 'food as a medicine'. The effect of various nutritional products on podocyte function and structure is also trending, especially in recent years. In the current review, we summarized the effect of nutritional interventions on podocyte function and structure.
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Affiliation(s)
- Baris Afsar
- Division of Nephrology, Department of Nephrology, Suleyman Demirel University School of Medicine, Isparta, Turkey.
| | - Rengin Elsurer Afsar
- Division of Nephrology, Department of Nephrology, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - Atalay Demiray
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Adrian Covic
- Department of Nephrology, Grigore T. Popa' University of Medicine, Iasi, Romania
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
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17
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Corino C, Di Giancamillo A, Modina SC, Rossi R. Prebiotic Effects of Seaweed Polysaccharides in Pigs. Animals (Basel) 2021; 11:1573. [PMID: 34072221 PMCID: PMC8229765 DOI: 10.3390/ani11061573] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 12/20/2022] Open
Abstract
To ensure environmental sustainability, according to the European Green Deal and to boost the One Health concept, it is essential to improve animals' health and adopt sustainable and natural feed ingredients. Over the past decade, prebiotics have been used as an alternative approach in order to reduce the use of antimicrobials, by positively affecting the gut microbiota and decreasing the onset of several enteric diseases in pig. However, dietary supplementation with seaweed polysaccharides as prebiotics has gained attention in recent years. Seaweeds or marine macroalgae contain several polysaccharides: laminarin, fucoidan, and alginates are found in brown seaweeds, carrageenan in red seaweeds, and ulvan in green seaweeds. The present review focuses on studies evaluating dietary seaweed polysaccharide supplementation in pig used as prebiotics to positively modulate gut health and microbiota composition.
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Affiliation(s)
| | | | | | - Raffaella Rossi
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Via dell’Università 6, 26900 Lodi, Italy; (C.C.); (A.D.G.); (S.C.M.)
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18
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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: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [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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