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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 2024:107301. [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] [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: antioxidative stress effects, antiapoptotic effects, antiinflammatory effects, antifibrotic 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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Abd-Eldayem AM, Makram SM, Messiha BAS, Abd-Elhafeez HH, Abdel-Reheim MA. Cyclosporine-induced kidney damage was halted by sitagliptin and hesperidin via increasing Nrf2 and suppressing TNF-α, NF-κB, and Bax. Sci Rep 2024; 14:7434. [PMID: 38548778 PMCID: PMC10978894 DOI: 10.1038/s41598-024-57300-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 03/16/2024] [Indexed: 04/01/2024] Open
Abstract
Cyclosporine A (CsA) is employed for organ transplantation and autoimmune disorders. Nephrotoxicity is a serious side effect that hampers the therapeutic use of CsA. Hesperidin and sitagliptin were investigated for their antioxidant, anti-inflammatory, and tissue-protective properties. We aimed to investigate and compare the possible nephroprotective effects of hesperidin and sitagliptin. Male Wistar rats were utilized for induction of CsA nephrotoxicity (20 mg/kg/day, intraperitoneally for 7 days). Animals were treated with sitagliptin (10 mg/kg/day, orally for 14 days) or hesperidin (200 mg/kg/day, orally for 14 days). Blood urea, serum creatinine, albumin, cystatin-C (CYS-C), myeloperoxidase (MPO), and glucose were measured. The renal malondialdehyde (MDA), glutathione (GSH), catalase, and SOD were estimated. Renal TNF-α protein expression was evaluated. Histopathological examination and immunostaining study of Bax, Nrf-2, and NF-κB were performed. Sitagliptin or hesperidin attenuated CsA-mediated elevations of blood urea, serum creatinine, CYS-C, glucose, renal MDA, and MPO, and preserved the serum albumin, renal catalase, SOD, and GSH. They reduced the expressions of TNF-α, Bax, NF-κB, and pathological kidney damage. Nrf2 expression in the kidney was raised. Hesperidin or sitagliptin could protect the kidney against CsA through the mitigation of oxidative stress, apoptosis, and inflammation. Sitagliptin proved to be more beneficial than hesperidin.
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Affiliation(s)
- Ahmed M Abd-Eldayem
- Department of Medical Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt.
- Department of Pharmacology, Faculty of Medicine, Merit University, Sohâg, Egypt.
| | | | | | - Hanan H Abd-Elhafeez
- Department of Cell and Tissue, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Mustafa Ahmed Abdel-Reheim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni Suef, Egypt
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra, Saudi Arabia
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3
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Kong H, Xu T, Wang S, Zhang Z, Li M, Qu S, Li Q, Gao P, Cong Z. The molecular mechanism of polysaccharides in combating major depressive disorder: A comprehensive review. Int J Biol Macromol 2024; 259:129067. [PMID: 38163510 DOI: 10.1016/j.ijbiomac.2023.129067] [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: 05/17/2023] [Revised: 12/10/2023] [Accepted: 12/25/2023] [Indexed: 01/03/2024]
Abstract
Major depressive disorder (MDD) is a complex psychiatric condition with diverse etiological factors. Typical pathological features include decreased cerebral cortex, subcortical structures, and grey matter volumes, as well as monoamine transmitter dysregulation. Although medications exist to treat MDD, unmet needs persist due to limited efficacy, induced side effects, and relapse upon drug withdrawal. Polysaccharides offer promising new therapies for MDD, demonstrating antidepressant effects with minimal side effects and multiple targets. These include neurotransmitter, neurotrophin, neuroinflammation, hypothalamic-pituitary-adrenal axis, mitochondrial function, oxidative stress, and intestinal flora regulation. This review explores the latest advancements in understanding the pharmacological actions and mechanisms of polysaccharides in treating major depression. We discuss the impact of polysaccharides' diverse structures and properties on their pharmacological actions, aiming to inspire new research directions and facilitate the discovery of novel anti-depressive drugs.
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Affiliation(s)
- Hongwei Kong
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Tianren Xu
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Shengguang Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Zhiyuan Zhang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Min Li
- Institute of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Suyan Qu
- Tai 'an Taishan District People's Hospital, China
| | - Qinqing Li
- Shanxi University of Chinese Medicine, China
| | - Peng Gao
- Institute of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Zhufeng Cong
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Affiliated Cancer Hospital of Shandong First Medical University, China.
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4
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Qi J, Luo Q, Zhang Q, Wu M, Zhang L, Qin L, Xue Q, Nie X. Yi-Shen-Xie-Zhuo formula alleviates cisplatin-induced AKI by regulating inflammation and apoptosis via the cGAS/STING pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116327. [PMID: 36889420 DOI: 10.1016/j.jep.2023.116327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/13/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yi-Shen-Xie-Zhuo formula (YSXZF) is a traditional Chinese medicine prescription developed from the classic prescription Mulizexie powder documented in the book of Golden Chamber Synopsis and the Buyanghuanwu Decoction recorded in the book of Correction of Errors in Medical Classics. According to our years of clinical experience, YSXZF can effectively improve qi deficiency and blood stasis in kidney disease. However, its mechanisms need further clarification. AIM OF THE STUDY Apoptosis and inflammation play key roles in acute kidney disease (AKI). The Yi-Shen-Xie-Zhuo formula, consisting of four herbs, is commonly used for treating renal disease. However, the underlying mechanism and bioactive components remain unexplored. This study aimed to investigate the protective effects of YSXZF against apoptosis and inflammation in a cisplatin-treated mouse model, and identify the main bioactive components of YSXZF. MATERIALS AND METHODS C57BL/6 mice were administered cisplatin (15 mg/kg) with or without YSXZF (11.375 or 22.75 g/kg/d). HKC-8 cells were treated with cisplatin (20 μM) with or without YSXZF (5% or 10%) for 24 h. Renal function, morphology, and cell damage were evaluated. UHPLC-MS was used to analyze the herbal components and metabolites in the YSXZF-containing serum. RESULTS Blood urea nitrogen (BUN), serum creatinine, serum and urine neutrophil gelatinase-associated lipocalin (NGAL) levels were clearly increased in the cisplatin-treated group. Administration of YSXZF reversed these changes; it improved renal histology, downregulated kidney injury molecule 1 (KIM-1) expression, and lowered the number of TdT-mediated dUTP-biotin nick end labeling (TUNEL)-positive cells. YSXZF significantly downregulated cleaved caspase-3 and BAX, and upregulated BCL-2 proteins in renal tissues. YSXZF suppressed increase in cGAS/STING activation and inflammation. In vitro treatment with YSXZF markedly reduced cisplatin-induced HKC-8 cell apoptosis, relieved cGAS/STING activation and inflammation, improved mitochondrial membrane potential (MMP), and lowered reactive oxygen species (ROS) overgeneration. Small RNA interference (siRNA)-mediated silencing of cGAS or STING inhibited the protective effects of YSXZF. Twenty-three bioactive constituents from the YSXZF-containing serum were identified as key components. CONCLUSION This is the first study to demonstrate that YSXZF protects against AKI by suppressing inflammation and apoptosis via the cGAS/STING signaling pathway.
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Affiliation(s)
- Jieying Qi
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Qin Luo
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Qiaoying Zhang
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Mengni Wu
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Lili Zhang
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Linsen Qin
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Qi Xue
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China.
| | - Xiaoli Nie
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China.
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Natural Reno-Protective Agents against Cyclosporine A-Induced Nephrotoxicity: An Overview. Molecules 2022; 27:molecules27227771. [PMID: 36431872 PMCID: PMC9693876 DOI: 10.3390/molecules27227771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
CA (cyclosporine A) is a powerful immunosuppressing agent that is commonly utilized for treating various autoimmune illnesses and in transplantation surgery. However, its usage has been significantly restricted because of its unwanted effects, including nephrotoxicity. The pathophysiology of CA-induced kidney injury involves inflammation, apoptosis, tubular injury, oxidative stress, and vascular injury. Despite the fact that exact mechanism accountable for CA's effects is inadequately understood, ROS (reactive oxygen species) involvement has been widely proposed. At present, there are no efficient methods or drugs for treating CA-caused kidney damage. It is noteworthy that diverse natural products have been investigated both in vivo and in-vitro for their possible preventive potential in CA-produced nephrotoxicity. Various extracts and natural metabolites have been found to possess a remarkable potential for restoring CA-produced renal damage and oxidative stress alterations via their anti-apoptosis, anti-inflammatory, and antioxidative potentials. The present article reviews the reported studies that assess the protective capacity of natural products, as well as dietary regimens, in relation to CA-induced nephrotoxicity. Thus, the present study presents novel ideas for designing and developing more efficient prophylactic or remedial strategies versus CA passive influences.
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ILB®, a Low Molecular Weight Dextran Sulphate, Restores Glutamate Homeostasis, Amino Acid Metabolism and Neurocognitive Functions in a Rat Model of Severe Traumatic Brain Injury. Int J Mol Sci 2022; 23:ijms23158460. [PMID: 35955592 PMCID: PMC9368799 DOI: 10.3390/ijms23158460] [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: 07/07/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/04/2022] Open
Abstract
In a previous study, we found that administration of ILB®, a new low molecular weight dextran sulphate, significantly improved mitochondrial functions and energy metabolism, as well as decreased oxidative/nitrosative stress, of brain tissue of rats exposed to severe traumatic brain injury (sTBI), induced by the closed-head weight-drop model of diffused TBI. Using aliquots of deproteinized brain tissue of the same animals of this former study, we here determined the concentrations of 24 amino acids of control rats, untreated sTBI rats (sacrificed at 2 and 7 days post-injury) and sTBI rats receiving a subcutaneous ILB® administration (at the dose levels of 1, 5 and 15 mg/kg b.w.) 30 min post-impact (sacrificed at 2 and 7 days post-injury). Additionally, in a different set of experiments, new groups of control rats, untreated sTBI rats and ILB®-treated rats (administered 30 min after sTBI at the dose levels of 1 or 5 mg/kg b.w.) were studied for their neurocognitive functions (anxiety, locomotor capacities, short- and long-term memory) at 7 days after the induction of sTBI. Compared to untreated sTBI animals, ILB® significantly decreased whole brain glutamate (normalizing the glutamate/glutamine ratio), glycine, serine and g-aminobutyric acid. Furthermore, ILB® administration restored arginine metabolism (preventing nitrosative stress), levels of amino acids involved in methylation reactions (methionine, L-cystathionine, S-adenosylhomocysteine), and N-acetylaspartate homeostasis. The macroscopic evidences of the beneficial effects on brain metabolism induced by ILB® were the relevant improvement in neurocognitive functions of the group of animals treated with ILB® 5 mg/kg b.w., compared to the marked cognitive decline measured in untreated sTBI animals. These results demonstrate that ILB® administration 30 min after sTBI prevents glutamate excitotoxicity and normalizes levels of amino acids involved in crucial brain metabolic functions. The ameliorations of amino acid metabolism, mitochondrial functions and energy metabolism in ILB®-treated rats exposed to sTBI produced significant improvement in neurocognitive functions, reinforcing the concept that ILB® is a new effective therapeutic tool for the treatment of sTBI, worth being tested in the clinical setting.
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7
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Low Molecular Weight Dextran Sulfate (ILB ®) Administration Restores Brain Energy Metabolism Following Severe Traumatic Brain Injury in the Rat. Antioxidants (Basel) 2020; 9:antiox9090850. [PMID: 32927770 PMCID: PMC7555574 DOI: 10.3390/antiox9090850] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/06/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023] Open
Abstract
Traumatic brain injury (TBI) is the leading cause of death and disability in people less than 40 years of age in Western countries. Currently, there are no satisfying pharmacological treatments for TBI patients. In this study, we subjected rats to severe TBI (sTBI), testing the effects of a single subcutaneous administration, 30 min post-impact, of a new low molecular weight dextran sulfate, named ILB®, at three different dose levels (1, 5, and 15 mg/kg body weight). A group of control sham-operated animals and one of untreated sTBI rats were used for comparison (each group n = 12). On day 2 or 7 post-sTBI animals were sacrificed and the simultaneous HPLC analysis of energy metabolites, N-acetylaspartate (NAA), oxidized and reduced nicotinic coenzymes, water-soluble antioxidants, and biomarkers of oxidative/nitrosative stress was carried out on deproteinized cerebral homogenates. Compared to untreated sTBI rats, ILB® improved energy metabolism by increasing ATP, ATP/ adenosine diphosphate ratio (ATP/ADP ratio), and triphosphate nucleosides, dose-dependently increased NAA concentrations, protected nicotinic coenzyme levels and their oxidized over reduced ratios, prevented depletion of ascorbate and reduced glutathione (GSH), and decreased oxidative (malondialdehyde formation) and nitrosative stress (nitrite + nitrate production). Although needing further experiments, these data provide the first evidence that a single post-injury injection of a new low molecular weight dextran sulfate (ILB®) has beneficial effects on sTBI metabolic damages. Due to the absence of adverse effects in humans, ILB® represents a promising therapeutic agent for the treatment of sTBI patients.
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8
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Li XY, Chen HR, Zha XQ, Chen S, Pan LH, Li QM, Luo JP. Prevention and possible mechanism of a purified Laminaria japonica polysaccharide on adriamycin-induced acute kidney injury in mice. Int J Biol Macromol 2020; 148:591-600. [PMID: 31958563 DOI: 10.1016/j.ijbiomac.2020.01.159] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/26/2019] [Accepted: 01/16/2020] [Indexed: 12/14/2022]
Abstract
The present work aims to investigate the effects and underlying mechanism of a homogeneous Laminaria japonica polysaccharide (LJP61A) on acute kidney injury (AKI) in mice. According to the results of biochemical and pathological analysis, we concluded that LJP61A could protect kidney from the damage of adriamycin in AKI mice. Compared to the model group, the mRNA level of cytokines (TNF-α, IL-1β and MCP-1) and protein level of mesenchymal markers demsin were decrease by the treatment of LJP61A while the protein levels of podocyte structure markers (Nephrin and WT-1) were increased. Moreover, the adriamycin-induced enhancement of phosphor-p65, phosphor-p38, phosphor-ERK1/2 and phosphor-JNK in the kidney of AKI mice were significantly suppressed by LJP61A. Similar variation was observed in the mRNA and protein levels of TGF-β1 and Smad3. These results suggested that LJP61A prevented acute kidney injury possibly via regulating TGF-β1-mediated Smad3, MAPKs and NF-κB signaling 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
| | - 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, People's Republic of China.
| | - Shun 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
| | - 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
| | - 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
| | - 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.
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Sanjeewa KA, Kang N, Ahn G, Jee Y, Kim YT, Jeon YJ. Bioactive potentials of sulfated polysaccharides isolated from brown seaweed Sargassum spp in related to human health applications: A review. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.02.040] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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10
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Bhadja P, Lunagariya J, Ouyang JM. Seaweed sulphated polysaccharide as an inhibitor of calcium oxalate renal stone formation. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.10.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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11
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Shankar PD, Shobana S, Karuppusamy I, Pugazhendhi A, Ramkumar VS, Arvindnarayan S, Kumar G. A review on the biosynthesis of metallic nanoparticles (gold and silver) using bio-components of microalgae: Formation mechanism and applications. Enzyme Microb Technol 2016; 95:28-44. [DOI: 10.1016/j.enzmictec.2016.10.015] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 09/19/2016] [Accepted: 10/22/2016] [Indexed: 01/02/2023]
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12
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Golden MH. Nutritional and other types of oedema, albumin, complex carbohydrates and the interstitium - a response to Malcolm Coulthard's hypothesis: Oedema in kwashiorkor is caused by hypo-albuminaemia. Paediatr Int Child Health 2015; 35:90-109. [PMID: 25844980 DOI: 10.1179/2046905515y.0000000010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The various types of oedema in man are considered in relation to Starling's hypothesis of fluid movement from capillaries, with the main emphasis on nutritional oedema and the nephrotic syndrome in children. It is concluded that each condition has sufficient anomalous findings to render Starling's hypothesis untenable. The finding that the endothelial glycocalyx is key to control of fluid movement from and into the capillaries calls for complete revision of our understanding of oedema formation. The factors so far known to affect the function of the glycocalyx are reviewed. As these depend upon sulphated proteoglycans and other glycosaminoglycans, the argument is advanced that the same abnormalities will extend to the interstitial space and that kwashiorkor is fundamentally related to a defect in sulphur metabolism which can explain all the clinical features of the condition, including the formation of oedema.
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Key Words
- Albumin,
- Aldosterone,
- Angiotensin,
- Beriberi,
- Edema,
- Epidemic dropsy,
- Famine oedema,
- Glycocalyx,
- Glycosaminoglycans,
- Heart failure,
- Hunger oedema,
- Kwashiorkor,
- Malnutrition,
- Nephrotic syndrome,
- Oedema,
- Potassium deficiency,
- Pre-eclampsia,
- Protein-energy malnutrition,
- Proteoglycans,
- Renin,
- Salt,
- Severe acute malnutrition
- Vitamin E deficiency,
- War oedema,
- Water,
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Bu SY, Kwon H, Sung MK. Supplementation of Seaweeds Extracts Suppresses Azoxymethane-induced Aberrant DNA Methylation in Colon and Liver of ICR Mice. J Cancer Prev 2014; 19:216-23. [PMID: 25337591 PMCID: PMC4189504 DOI: 10.15430/jcp.2014.19.3.216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 09/10/2014] [Accepted: 09/10/2014] [Indexed: 12/18/2022] Open
Abstract
Background: Seamustard and seatangle are commonly consumed seaweeds in Korea and rich sources of non-digestible polysaccharides which possess biological activities. However anti-mutagenic and anti-cancer activities of these seaweeds under physiological condition have not been clarified yet. The objective of this study was to investigate the effect of seaweeds consumption on azoxymethane (AOM) -induced DNA methylation at N7 and O6 position of guanine base, an indicator of DNA damage related to cancer initiation. Methods: Thirty ICR mice were divided into five groups and fed one of the following diets for two weeks: control diet, diet containing 10% water-soluble or water-insoluble fraction of seamustard or seatangle. After two weeks of experimental diet AOM was injected at 6 hours before sacrifice and N7-methylguanine (N7-meG) and O6-methylguanine (O6-meG) from the colon and liver DNA were quantified using a gas chromatography-mass spectroscopy. Results: Water-soluble fractions of both seamustard and seatangle significantly reduced AOM-induced production of N7-meG guanine in colon and liver. Also water-soluble fractions of these seaweeds suppressed the level of methylation at O6-guanine of colon and liver directly responsible for tumorigenesis. While water-insoluble fraction of seamustard suppressed the production of N7-meG in liver this seaweed fraction decreased O6-meG and the ratio of O6/N7-meG in liver. Water insoluble fraction of seatangle decreased both O6- and N7-meG in colon and liver. Supplementation of all seaweeds extracts increased fecal weight of animals and the increase of fecal weight by water-insoluble fraction of seaweeds were higher than that by water-soluble fraction. Conclusion: Seamustard and seatangle intake may effectively prevent colon and liver carcinogenesis by decreasing DNA damage and the mechanism of inhibiting carcinogenesis by seaweeds in a long term study are warranted.
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Affiliation(s)
- So Young Bu
- Department of Food and Nutrition, Daegu University, Gyeongsan, Korea
| | - Hoonjeong Kwon
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Mi-Kyung Sung
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
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Zhang Z, Zheng Y, Zhu R, Zhu Y, Yao W, Liu W, Gao X. The ERK/eIF4F/Bcl-XL pathway mediates SGP-2 induced osteosarcoma cells apoptosis in vitro and in vivo. Cancer Lett 2014; 352:203-13. [DOI: 10.1016/j.canlet.2014.06.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/16/2014] [Accepted: 06/24/2014] [Indexed: 11/30/2022]
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Antiviral Activity of Sulfated Polysaccharide of Adenanthera pavonina against Poliovirus in HEp-2 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:712634. [PMID: 25221609 PMCID: PMC4158113 DOI: 10.1155/2014/712634] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/29/2014] [Accepted: 08/03/2014] [Indexed: 11/23/2022]
Abstract
Adenanthera pavonina, popularly known as red-bead tree, carolina, pigeon's eye, and dragon's eye, is a plant traditionally used in Brazil for the treatment of several diseases. The present study aimed at evaluating the activity of sulfated polysaccharide from the Adenanthera pavonina (SPLSAp) seeds against poliovirus type 1 (PV-1) in HEp-2 cell cultures. The SPLSAp presented a cytotoxic concentration (CC50) of 500 μg/mL in HEp-2 cell cultures, evaluated by the dimethylthiazolyl-diphenyltetrazolium bromide method (MTT). The SPLSAp exhibited a significant antiviral activity, with a 50% inhibitory concentration (IC50) of 1.18 µg/mL, determined by plaque reduction assay and a high selectivity index (SI) of 423. The maximum inhibition (100%) of PV replication was found when the SPLSAp treatment was concomitant with viral infection (time 0 h), at all tested concentrations. The maximal inhibition was also found when the SPLSAp was used 1 h and 2 h postinfection, albeit at 50 μg/mL and 100 μg/mL. Therefore, we demonstrated that the SPLSAp inhibited PV growth. We also suggested that SPLSAp inhibited PV in more than one step of the replication, as the mechanism of antiviral action. We, therefore, selected the compound as a potential candidate for further development towards the control of the infection.
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Taboada C, Millan R, Miguez I. Evaluation of marine algae Undaria pinnatifida and Porphyra purpurea as a food supplement: composition, nutritional value and effect of intake on intestinal, hepatic and renal enzyme activities in rats. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:1863-8. [PMID: 23588591 DOI: 10.1002/jsfa.5981] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 09/20/2012] [Accepted: 11/01/2012] [Indexed: 06/02/2023]
Abstract
BACKGROUND There is a long tradition in Eastern countries of consuming seaweeds, although demand for these organisms has also increased in Western countries. However, knowledge of the effects of consumption of algae is limited. In this study the proximate composition and amino acid profile of Undaria pinnatifida (Harvey) Suringar (wakame) and Porphyra purpurea (Olivi) De Toni (nori) were determined. The effects of feeding diets containing 100 g kg(-1) of wakami or nori for 4 weeks on food intake, growth, protein efficiency ratio, diet conversion ratio and some organ weights in growing rats were evaluated. The effects on intestinal, hepatic and renal enzyme activities were also studied. RESULTS Both algae are a good source of protein, particularly nori, and contain essential amino acids. There was no effect of alga consumption on trophic balance. Intestinal disaccharidase and hepatic and renal γ-glutamyl transpeptidase activities were lower in alga-fed rats than in the control group, while intestinal leucine aminopeptidase activity was higher in rats fed algae. CONCLUSION Both seaweeds are a good source of protein and carbohydrates and contain all essential amino acids. The effects of the two algae on enzyme activities were similar. The inhibition of intestinal disaccharidase activity by seaweed ingestion could be interesting in patients with altered glucose homeostasis.
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Affiliation(s)
- Cristina Taboada
- Department of Physiology, Faculty of Pharmacy, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
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Xiao Z, Shan J, Li C, Luo L, Lu J, Li S, Long D, Li Y. Mechanisms of cyclosporine-induced renal cell apoptosis: a systematic review. Am J Nephrol 2012; 37:30-40. [PMID: 23295863 DOI: 10.1159/000345988] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 11/21/2012] [Indexed: 02/05/2023]
Abstract
BACKGROUND/AIMS Chronic cyclosporine A (CsA) nephrotoxicity (CCN) is an important cause of chronic renal dysfunction with no effective clinical intervention. To further elucidate the mechanisms of renal cell apoptosis in CCN, all relevant in vivo studies on this subject were analyzed. METHODS We searched for in vivo studies on the mechanisms of CsA-induced renal cell apoptosis in Medline (1966-July 2010), Embase (1980-July 2010) and ISI (1986-July 2010). The studies were evaluated for their quality according to a set of in vivo standards, data extracted according to PICOS, and then synthesized. RESULTS Renal cell apoptosis was an important feature of CCN and an important factor of renal dysfunction. First, CsA could upregulate Fas/Fas ligand, downregulate Bcl-2/Bcl-XL, and increase caspase-1 and caspase-3. Second, it could induce oxidative stress and damage the antioxidant defense system. Third, it could increase endoplasmic reticulum stress protein in a dose- and time-dependent manner. Fourth, CsA could impair the urine concentration and decrease the expression of hypertonicity-induced genes. Fifth, CsA-induced renal cell apoptosis was significantly decreased by blocking the angiotensin II type 1 receptor using losartan. CONCLUSIONS The in vivo mechanisms for CCN are more complex than those found in vitro. CsA can induce renal cell apoptosis using five pathways in vivo and activated caspases might be the ultimate intersection of these pathways and the common intracellular pathway mediating apoptosis. These data provide new potential points for intervention and need to be confirmed by further studies.
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Affiliation(s)
- Zheng Xiao
- Key Laboratory of Transplant Engineering and Immunology of the Ministry of Health of China, West China Hospital, Sichuan University, Chengdu, PR China
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Therapies from fucoidan; multifunctional marine polymers. Mar Drugs 2011; 9:1731-1760. [PMID: 22072995 PMCID: PMC3210604 DOI: 10.3390/md9101731] [Citation(s) in RCA: 215] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 09/22/2011] [Accepted: 09/26/2011] [Indexed: 12/22/2022] Open
Abstract
Published research on fucoidans increased three fold between 2000 and 2010. These algal derived marine carbohydrate polymers present numerous valuable bioactivities. This review discusses the role for fucoidan in the control of acute and chronic inflammation via selectin blockade, enzyme inhibition and inhibiting the complement cascade. The recent data on toxicology and uptake of fucoidan is detailed together with a discussion on the comparative activities of fractions of fucoidan from different sources. Recent in vivo, in vitro and clinical research related to diverse clinical needs is discussed. Targets include osteoarthritis, kidney and liver disease, neglected infectious diseases, hemopoietic stem cell modulation, protection from radiation damage and treatments for snake envenomation. In recent years, the production of well characterized reproducible fucoidan fractions on a commercial scale has become possible making therapies from fucoidan a realizable goal.
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Utilizing the γ-Irradiated Sodium Alginate as a Plant Growth Promoter for Enhancing the Growth, Physiological Activities, and Alkaloids Production in Catharanthus roseus L. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s1671-2927(11)60112-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mollah M, Khan MA, Khan RA. Effect of gamma irradiated sodium alginate on red amaranth (Amaranthus cruentus L.) as growth promoter. Radiat Phys Chem Oxf Engl 1993 2009. [DOI: 10.1016/j.radphyschem.2008.08.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hudes ML, McCann JC, Ames BN. Unusual clustering of coefficients of variation in published articles from a medical biochemistry department in India. FASEB J 2008; 23:689-703. [DOI: 10.1096/fj.08-108910] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mark L. Hudes
- Children's Hospital Oakland Research InstituteOaklandCaliforniaUSA
| | - Joyce C. McCann
- Children's Hospital Oakland Research InstituteOaklandCaliforniaUSA
| | - Bruce N. Ames
- Children's Hospital Oakland Research InstituteOaklandCaliforniaUSA
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Josephine A, Nithya K, Amudha G, Veena CK, Preetha SP, Varalakshmi P. Role of sulphated polysaccharides from Sargassum Wightii in Cyclosporine A-induced oxidative liver injury in rats. BMC Pharmacol 2008; 8:4. [PMID: 18289374 PMCID: PMC2291455 DOI: 10.1186/1471-2210-8-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Accepted: 02/20/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Seaweeds or marine algae have long been made up a key part of the Asian diet, and as an antioxidant, sulphated polysaccharides have piqued the interest of many researchers as one of the ocean's greatest treasures. The present investigation suggests the therapeutic potential of sulphated polysaccharides from marine brown algae "Sargassum wightii" in Cyclosporine A (CsA)- induced liver injury. CsA is a potent immunosuppressive agent used in the field of organ transplantations and various autoimmune disorders. However, hepatotoxicity due to CsA remains to be one of the major clinical challenges. METHODS The effect of sulphated polysaccharides on CsA-induced hepatotoxicity was studied in adult male albino rats of Wistar strain, and the animals were randomized into four groups with six rats in each. Group I served as vehicle control. Group II rats were given CsA at a dosage of 25 mg/kg body weight, orally for 21 days. Group III rats were given sulphated polysaccharides at a dosage of 5 mg/kg body weight, subcutaneously for 21 days. Group IV rats were given sulphated polysaccharides simultaneously along with CsA, as mentioned in Group II for 21 days. RESULTS CsA provoked hepatotoxicity was evident from the decreased activities of hepatic marker enzymes. A significant rise in the level of oxidants, along with a striking decline in both the enzymic and non-enzymic antioxidants, marks the severity of oxidative stress in CsA-induced rats. This in turn led to enhanced levels of lipid peroxidation, 8-hydroxy-2-deoxy guanosine and protein carbonyls, along with a decrease in ATPase activities and alterations in lipid profile. Histopathological changes also strongly support the above aberrations. However, concomitant treatment with sulphated polysaccharides restored the above deformities to near control and prevented the morphological alterations significantly. CONCLUSION Thus, the present study highlights that sulphated polysaccharides can act therapeutically against CsA-induced hepatotoxicity.
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Affiliation(s)
- Anthony Josephine
- Department of Medical Biochemistry, Dr. ALM. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai – 600 113, India
| | - Kalaiselvam Nithya
- Department of Medical Biochemistry, Dr. ALM. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai – 600 113, India
| | - Ganapathy Amudha
- Department of Medical Biochemistry, Dr. ALM. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai – 600 113, India
| | - Coothan Kandaswamy Veena
- Department of Medical Biochemistry, Dr. ALM. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai – 600 113, India
| | - Sreenivasan P Preetha
- Department of Medical Biochemistry, Dr. ALM. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai – 600 113, India
| | - Palaninathan Varalakshmi
- Department of Medical Biochemistry, Dr. ALM. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai – 600 113, India
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