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Sarkar C, Mondal M, Al-Khafaji K, El-Kersh DM, Jamaddar S, Ray P, Roy UK, Afroze M, Moniruzzaman M, Khan M, Asha UH, Khalipha ABR, Mori E, de Lacerda BCGV, Araújo IM, Coutinho HDM, Shill MC, Islam MT. GC–MS analysis, and evaluation of protective effect of Piper chaba stem bark against paracetamol-induced liver damage in Sprague-Dawley rats: Possible defensive mechanism by targeting CYP2E1 enzyme through in silico study. Life Sci 2022; 309:121044. [DOI: 10.1016/j.lfs.2022.121044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/30/2022] [Accepted: 10/02/2022] [Indexed: 10/31/2022]
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2
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A Review on Nutrients, Phytochemicals, and Health Benefits of Green Seaweed, Caulerpa lentillifera. Foods 2022; 11:foods11182832. [PMID: 36140958 PMCID: PMC9498133 DOI: 10.3390/foods11182832] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/27/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Caulerpa lentillifera is a type of green seaweed widely consumed as a fresh vegetable, specifically in Southeast Asia. Interestingly, this green seaweed has recently gained popularity in the food sector. Over the last two decades, many studies have reported that C. lentillifera is rich in polyunsaturated fatty acids, minerals, vitamins, and bioactive compounds that contribute many health benefits. On the other hand, there is currently hardly any article dedicated specifically to C. lentillifera regarding nutritional composition and recent advancements in its potential health benefits. Hence, this study will summarise the findings on the nutritional content of C. lentillifera and compile recently discovered beneficial properties throughout the past decade. From the data compiled in this review paper, it can be concluded that the nutrient and phytochemical profile of C. lentillifera differs from one region to another depending on various external factors. As a result, this paper will offer researchers the groundwork to develop food products based on C. lentillifera. The authors of this paper are hopeful that a more systematic review could be done in the future as currently, existing data is still scarce.
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El Fayoumy RA, El-Sheekh MM, Abu Ahmed SE. Potential of Ulvan Polysaccharide from Ulva lactuca as Antifungal Against Some Foodborne Fungi Isolated from Spoiled Tomato Sauce Cans. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2022. [DOI: 10.1080/10498850.2022.2093149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Reham A. El Fayoumy
- Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, Egypt
| | - Mostafa M. El-Sheekh
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Seham E. Abu Ahmed
- Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, Egypt
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Lin P, Chen S, Zhong S. Nutritional and Chemical Composition of Sargassum zhangii and the Physical and Chemical Characterization, Binding Bile Acid, and Cholesterol-Lowering Activity in HepG2 Cells of Its Fucoidans. Foods 2022; 11:foods11121771. [PMID: 35741969 PMCID: PMC9223202 DOI: 10.3390/foods11121771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 11/16/2022] Open
Abstract
Fucoidan is a marine sulfated polysaccharide that is rich in Sargassum and has a wide range of biological activities. In this study, the chemical composition and bile acid binding ability of six crude fucoidans were compared, the nutrition and chemical composition of Sargassum zhangii were analyzed, and fucoidan from Sargassum zhangii was extracted and purified. The purified fractions (ZF1, ZF2, and ZF3) were analyzed by physicochemical characterization, and the ability of binding bile acid and cholesterol lowering in HepG2 cells were evaluated. The results showed that the contents of sulfate in crude fucoidan from Sargassum Zhangii (ZF) was as high as13.63%. Its ability of binding bile acid was better than other five crude fucoidans. Sargassum zhangii was a kind of brown seaweed with high carbohydrate, and low fat and rich in minerals. The sulfate content of ZF1, ZF2, and ZF3 was 3.29%, 19.39%, and 18.89% respectively, and the molecular weight (Mw) was 4.026 × 105, 2.893 × 105, and 3.368 × 105, respectively. Three fucoidans all contained the characteristic absorption bands of polysaccharides and sulfate groups and were rich in fucose. Three fucoidans can bind to bile acid, and ZF2 showed the best binding capability. In vitro experiments showed that ZF1, ZF2, and ZF3 could reduce intracellular total cholesterol (TC) content in HepG2 cells without affecting their viability. ZF2 showed the best ability to reduce TC.
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Affiliation(s)
- Peichun Lin
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China;
| | - Suhua Chen
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China;
- Correspondence: ; Tel.: +86-759-239-6026
| | - Siyan Zhong
- School of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China;
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Abka-khajouei R, Tounsi L, Shahabi N, Patel AK, Abdelkafi S, Michaud P. Structures, Properties and Applications of Alginates. Mar Drugs 2022; 20:364. [PMID: 35736167 PMCID: PMC9225620 DOI: 10.3390/md20060364] [Citation(s) in RCA: 86] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/21/2022] [Accepted: 05/26/2022] [Indexed: 11/28/2022] Open
Abstract
Alginate is a hydrocolloid from algae, specifically brown algae, which is a group that includes many of the seaweeds, like kelps and an extracellular polymer of some bacteria. Sodium alginate is one of the best-known members of the hydrogel group. The hydrogel is a water-swollen and cross-linked polymeric network produced by the simple reaction of one or more monomers. It has a linear (unbranched) structure based on d-mannuronic and l-guluronic acids. The placement of these monomers depending on the source of its production is alternating, sequential and random. The same arrangement of monomers can affect the physical and chemical properties of this polysaccharide. This polyuronide has a wide range of applications in various industries including the food industry, medicine, tissue engineering, wastewater treatment, the pharmaceutical industry and fuel. It is generally recognized as safe when used in accordance with good manufacturing or feeding practice. This review discusses its application in addition to its structural, physical, and chemical properties.
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Affiliation(s)
- Roya Abka-khajouei
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84154, Iran;
- Institut Pascal, Université Clermont Auvergne, CNRS, Clermont Auvergne INP, F-63000 Clermont-Ferrand, France;
| | - Latifa Tounsi
- Institut Pascal, Université Clermont Auvergne, CNRS, Clermont Auvergne INP, F-63000 Clermont-Ferrand, France;
- Laboratoire de Génie Enzymatique et Microbiologie, Équipe de Biotechnologie des Algues, Département Génie Biologique, Ecole Nationale d’Ingénieurs de Sfax, Université de Sfax, Sfax 3038, Tunisia;
| | - Nasim Shahabi
- Department of Food Hygiene and Quality, College of Veterinary Medicine, Shahrekord 88186, Chahar Mahal Bakhtiari, Iran;
| | - Anil Kumar Patel
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan;
| | - Slim Abdelkafi
- Laboratoire de Génie Enzymatique et Microbiologie, Équipe de Biotechnologie des Algues, Département Génie Biologique, Ecole Nationale d’Ingénieurs de Sfax, Université de Sfax, Sfax 3038, Tunisia;
| | - Philippe Michaud
- Institut Pascal, Université Clermont Auvergne, CNRS, Clermont Auvergne INP, F-63000 Clermont-Ferrand, France;
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An Insight into Antihyperlipidemic Effects of Polysaccharides from Natural Resources. Molecules 2022; 27:molecules27061903. [PMID: 35335266 PMCID: PMC8952498 DOI: 10.3390/molecules27061903] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/10/2022] [Accepted: 03/13/2022] [Indexed: 11/17/2022] Open
Abstract
Hyperlipidemia is a chronic metabolic disease caused by the abnormal metabolism of lipoproteins in the human body. Its main hazard is to accelerate systemic atherosclerosis, which causes cerebrovascular diseases such as coronary heart disease and thrombosis. At the same time, although the current hypolipidemic drugs have a certain therapeutic effect, they have side effects such as liver damage and digestive tract discomfort. Many kinds of polysaccharides from natural resources possess therapeutic effects on hyperlipidemia but still lack a comprehensive understanding. In this paper, the research progress of natural polysaccharides on reducing blood lipids in recent years is reviewed. The pharmacological mechanisms and targets of natural polysaccharides are mainly introduced. The relationship between structure and hypolipidemic activity is also discussed in detail. This review will help to understand the value of polysaccharides in lowering blood lipids and provide guidance for the development and clinical application of new hypolipidemic drugs.
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Kalita P, Ahmed AB, Sen S, Chakraborty R. A comprehensive review on polysaccharides with hypolipidemic activity: Occurrence, chemistry and molecular mechanism. Int J Biol Macromol 2022; 206:681-698. [PMID: 35247430 DOI: 10.1016/j.ijbiomac.2022.02.189] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 02/14/2022] [Accepted: 02/28/2022] [Indexed: 02/06/2023]
Abstract
Currently, research on natural products is facing challenging future in various aspects. A large group of natural polysaccharides such as β-glucan, cellulose, hemicellulose, chitin, pectin, agaropectin, heteroglycans, lignins, hydrocolloids, homopolysaccharides, heteropolysaccharides were studied extensively for their various therapeutical potential. Several research works have already demonstrated those polysaccharides has tremendous health benefits, and found to exhibit anticancer, antiviral, immunomodulatory, antimicrobial, anticoagulant, anti-inflammatory, antidiabetic, antioxidant and antitumor activities. Different mushroom, plant, fungus, algae, vegetables, microalgae etc. are some important source of several polysaccharide macromolecules such as glucans, ulvan A, ulvan B, fucoidan, rhamnan sulfate, laminarin sulfate, agar, alginate, heteroglycans. Earlier research work demonstrated that natural polysaccharides have the highest ability to carry biological properties along with some biopolymers like as proteins and nucleic acids due to their structural variability. The preventive effect of these biomacromolecules was extensively studied, especially their beneficial effect on chronic metabolic conditions like dyslipidemia and related disorders. Dyslipidemia is a serious metabolic disorder associated with coronary heart disease, coronary artery diseases, hypercholesterolemia, atherosclerosis, etc. Dietary natural polysaccharides could play an important role in the management and prevention of dyslipidemia. Polysaccharides from natural sources mainly sulfated polysaccharides exhibited predominant lipid-lowering and cholesterol-lowering activities through different mechanisms. Polysaccharides isolated from different edible plants, vegetables, plant, algae, mushroom with higher biological activities, particularly hypolipidemic activity were highlighted in this paper, in a way for their futuristic therapeutic application. This review aims to comprehensively discuss overall advances in hypolipidemic activity of polysaccharides, including their sources, structural characteristic and chemistry, biological activity and their probable mode of action.
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Affiliation(s)
- Pratap Kalita
- Faculty of Pharmaceutical Science, Assam down town University, Panikhaiti, Guwahati, Assam 781026, India; Pratiksha Institute of Pharmaceutical Sciences, Guwahati, Assam, 781026, India; Research Scholar, Assam Science Technology University, Guwahati, Assam, 781013, India.
| | - Abdul Baquee Ahmed
- Girijananda Institute of Pharmaceutical Sciences, Tezpur, Assam 784501, India
| | - Saikat Sen
- Faculty of Pharmaceutical Science, Assam down town University, Panikhaiti, Guwahati, Assam 781026, India
| | - Raja Chakraborty
- Department of Pharmaceutical Technology, School of Medical Sciences, Adamas University, West Bengal, 700126, India
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André R, Pacheco R, Bourbon M, Serralheiro ML. Brown Algae Potential as a Functional Food against Hypercholesterolemia: Review. Foods 2021; 10:234. [PMID: 33498824 PMCID: PMC7911857 DOI: 10.3390/foods10020234] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/10/2021] [Accepted: 01/22/2021] [Indexed: 12/14/2022] Open
Abstract
Brown algae have been part of the human diet for hundreds of years, however, in recent years, commercial and scientific interest in brown algae has increased due to the growing demand for healthier diet by the world population. Brown algae and its metabolites, such as carotenoids, polysaccharides, phlorotannins, and proteins, have been associated with multiple beneficial health effects for different diseases, such as cardiovascular diseases, one of the main causes of death in Europe. Since high blood cholesterol levels are one of the major cardiovascular risks, this review intends to provide an overview of current knowledge about the anti-hypercholesterolemic effect of different brown algae species and/or their isolated compounds.
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Affiliation(s)
- Rebeca André
- BioISI–Instituto de Biossistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.A.); (R.P.); (M.B.)
| | - Rita Pacheco
- BioISI–Instituto de Biossistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.A.); (R.P.); (M.B.)
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Av. Conselheiro Emídio Navarro, 1959-007 Lisboa, Portugal
| | - Mafalda Bourbon
- BioISI–Instituto de Biossistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.A.); (R.P.); (M.B.)
- Unidade I&D, Grupo de Investigação Cardiovascular, Departamento de Promoção da Saúde e Doenças Não Transmissíveis, Instituto Nacional de Saúde Doutor Ricardo Jorge, 1649-016 Lisboa, Portugal
| | - Maria Luísa Serralheiro
- BioISI–Instituto de Biossistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.A.); (R.P.); (M.B.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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Repair of Erythrocyte Membranes by the Lipid Fraction from Brown Seaweed Sargassum Pallidum after Experimental Ccl4-Induced Toxic Hepatitis. Pharm Chem J 2020. [DOI: 10.1007/s11094-020-02123-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Aziz E, Batool R, Akhtar W, Rehman S, Shahzad T, Malik A, Shariati MA, Laishevtcev A, Plygun S, Heydari M, Rauf A, Ahmed Arif S. Xanthophyll: Health benefits and therapeutic insights. Life Sci 2019; 240:117104. [PMID: 31783054 DOI: 10.1016/j.lfs.2019.117104] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/13/2019] [Accepted: 11/24/2019] [Indexed: 01/29/2023]
Abstract
Xanthophylls constitute a major part of carotenoids in nature. They are an oxidized version of carotenoid. Xanthophyll has widely drawn scientists' attentions in terms of its functionality, bioavailability and diversity. An assortment of xanthophyll varieties includes lutein, zeaxanthin, β-cryptoxanthin, capsanthin, astaxanthin, and fucoxanthin. Chemically, lutein and zeaxanthin are dipolar carotenoids with hydroxyl groups at both ends of their molecules that bestow hydrophilic properties to them. Hydrophilic affinity in lutein and zeaxanthin makes better bioavailability in reaction with singlet oxygen in water phase, whereas non-polar carotenoids have shown to have less efficiency in scavenging free radicals. Xanthophylls have been studied for their effects in a wide variety of diseases including neurologic, ophthalmologic, oral, allergic and immune diseases. This review highlights pharmaco-pharmaceutical applications of xanthophylls as well asits drug interactions with beta-carotene. Different types of xanthophylls have been shown to have neuroprotective effects. Fucoxanthin demonstrated potent antiplasmodial activity. Lutein and zeaxanthin prevent the progression of age related macular degeneration. They have also demonstrated promising effects on uveitis, retinitis pigmentosa, scleritis, cataracts, glaucoma, retinal ischemia and choroideremia. Astaxanthin showed to have skin protecting effects against ultraviolet light injury. Astaxanthin have anti-allergic activity against the contact dermatitis especially to treat the patients having adverse reactions induced by steroids. Astaxanthin has been reported to exert beneficial effects in preventing oral lichen planus and early stage cancers. β-cryptoxanthin has been considered a good candidate for prevention of bone loss via osteoblastic bone formation and inhibiting osteoclastic bone resorption. There is also some concern that higher dose of xanthophylls may be linked to increased risk of skin cancer and gastric adenocarcinoma. However this increased risk was not statistically significant when adjusted for confounding factors. Further researches including clinical studies are needed to better evaluate the efficacy and safety of xanthophylls in prevention and treatment of different diseases.
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Affiliation(s)
- Ejaz Aziz
- Department of Botany, GDC Khanpur, Haripur, Pakistan.
| | - Riffat Batool
- University Institute of Biochemistry and Biotechnology, PMAS-UAAR, Rawalpindi, Pakistan.
| | - Wasim Akhtar
- Department of Botany, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Shazia Rehman
- Department of Plant Sciences, Quaid-i-Azam University Islamabad, Pakistan
| | - Tasmeena Shahzad
- Department of Plant Sciences, Quaid-i-Azam University Islamabad, Pakistan
| | - Ayesha Malik
- Department of Plant Sciences, Quaid-i-Azam University Islamabad, Pakistan
| | - Mohammad Ali Shariati
- Laboratory of Biocontrol and Antimicrobial Resistance, Orel State, University Named After I.S. Turgenev, 302026 Orel, Russia
| | - Alexey Laishevtcev
- Laboratory of Biocontrol and Antimicrobial Resistance, Orel State, University Named After I.S. Turgenev, 302026 Orel, Russia; Federal Research Center - All-Russian Scientific Research Institute of Experimental Veterinary Medicine named after K.I. Skryabin and Y.R. Kovalenko of the Russian Academy of Sciences, Moscow 109428, Russia
| | - Sergey Plygun
- Laboratory of Biocontrol and Antimicrobial Resistance, Orel State, University Named After I.S. Turgenev, 302026 Orel, Russia; European Society of Clinical Microbiology and Infectious Diseases, Basel 4051, Switzerland; All Russian Research Institute of Phytopathology, Moscow Region 143050, Russia
| | - Mojtaba Heydari
- Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Anbar, KPK, Pakistan.
| | - Shaheer Ahmed Arif
- Bioproducts Sciences and Engineering Laboratory, Washington State University Tricities, 2710, Crimson way, Richland, WA 99354, USA
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Priyan Shanura Fernando I, Kim KN, Kim D, Jeon YJ. Algal polysaccharides: potential bioactive substances for cosmeceutical applications. Crit Rev Biotechnol 2018; 39:1-15. [PMID: 30198346 DOI: 10.1080/07388551.2018.1503995] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 07/04/2018] [Accepted: 07/13/2018] [Indexed: 01/21/2023]
Abstract
The cosmetics industry is one of the most profitable in the world today. This multi-billion-dollar industry has a profound sociological impact worldwide. Its influence is global, with most individuals being concerned with conserving their physical appearance, beauty, and youth. The consumers' desire for novel, better, and safer products has stimulated the utilization of natural-product-based cosmeceutical formulations over synthetic chemicals. With remarkable advancements in marine bioresource technology, algal polysaccharides have gained much attention as bioactive ingredients in cosmeceuticals. Algae biosynthesize a variety of polysaccharides including fucoidans, alginates, carrageenans, galactans, agar, porphyran, glucans, and ulvans, all of which exhibit distinctive structural and functional properties. Many of these materials have been proven to possess skin-protective effects, including anti-wrinkle, lightening, moisturizing, UV protective, antioxidative, and anti-inflammatory activity. Moreover, they have a wide spectrum of physicochemical properties, such as the ability to form hydrogels, which extend their utilization as emulsifiers, stabilizers, and viscosity controlling ingredients in cosmeceuticals. Accordingly, algal hydrocolloids and their synthetic derivatives can also be applied in tissue engineering and cosmetic surgery. The challenge is to increase awareness about these polysaccharides and consequently generate value-added products. This review discusses the beneficial biological and physicochemical properties of algal polysaccharides, highlighting their potential in cosmeceutical applications.
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Affiliation(s)
| | - Kil-Nam Kim
- b Chuncheon Center, Korea Basic Science Institute (KBSI) , Chuncheon , Republic of Korea
| | - Daekyung Kim
- c Daegu Center, Korea Basic Science Institute (KBSI), Kyungpook National University , Bukgu , Daegu , South Korea
| | - You-Jin Jeon
- a Department of Marine Life Science , Jeju National University , Jeju , Republic of Korea
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Palanisamy S, Vinosha M, Manikandakrishnan M, Anjali R, Rajasekar P, Marudhupandi T, Manikandan R, Vaseeharan B, Prabhu NM. Investigation of antioxidant and anticancer potential of fucoidan from Sargassum polycystum. Int J Biol Macromol 2018; 116:151-161. [PMID: 29729339 DOI: 10.1016/j.ijbiomac.2018.04.163] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/02/2018] [Accepted: 04/29/2018] [Indexed: 01/10/2023]
Abstract
The present study was aimed to evaluate the antioxidant and anticancer potential of fucoidan isolated from Sargassum polycystum. The isolated fucoidan was successfully purified by DEAE cellulose-ion exchange chromatography and dialysis. Totally four active fractions (F1-F4) were collected and explored its chemical constitution by calorimetric assays. Among them, fraction 2 (F2) showed the higher yield percentage, fucose and sulphate content. Further, monosaccharide composition, structural and functional properties of the F2 was analyzed by HPLC, FTIR and NMR. F2 shows highest DPPH radical scavenging activity (55.94 ± 0.69%), reducing power (0.33 absorbance rate), hydrogen peroxide scavenging activity (71.76 ± 2.14%) and nitric oxide radical scavenging activity (51.81 ± 1.04%) at 1000 μg/ml. The cell viability of MCF-7 and HCT-15 cell lines was proportionate to the concentration of F2 with an estimated IC50 was 20 and 50 μg/ml respectively. The fluorescence and confocal laser scanning microscopic analysis demonstrated the apoptotic morphological changes and cell mediated death in F2 treated cancer cells. Higher amount of LDH release was found in the F2 treated cancer cells than the control group. Thus, the present finding proved that the isolated F2 encompasses significant antioxidant and anticancer property.
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Affiliation(s)
- Subramanian Palanisamy
- Disease control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Manoharan Vinosha
- Disease control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Muthushanmugam Manikandakrishnan
- Disease control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Ravichandran Anjali
- Disease control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Periyannan Rajasekar
- Disease control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Thangapandi Marudhupandi
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Ramar Manikandan
- Department of Zoology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - Baskaralingam Vaseeharan
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Narayanasamy Marimuthu Prabhu
- Disease control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, Tamil Nadu, India.
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Li X, Xiong F, Liu Y, Liu F, Hao Z, Chen H. Total fractionation and characterization of the water-soluble polysaccharides isolated from Enteromorpha intestinalis. Int J Biol Macromol 2018; 111:319-325. [PMID: 29325743 DOI: 10.1016/j.ijbiomac.2018.01.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/02/2018] [Accepted: 01/04/2018] [Indexed: 11/28/2022]
Abstract
Water-soluble crude polysaccharides (WE) were extracted from the Enteromorpha intestinalis with hot water and further fractionated on a DEAE-52 Cellulose chromatography column and Sepharose CL-6B gel-permeation chromatography to afford one neutral fraction (WE-11) and five acidic fractions (WE-21, WE-31, WE-32, WE-41 and WE-42). Monosaccharide analysis showed that WE-32, WE-41 and WE-42 were all composed of Rha and GlcA, WE-21 and WE-31 contained Man and Rha, and WE-11 was composed of GlcA and Xyl. The molecular weight of WE-11, WE-21, WE-31 WE-32, WE-41 and WE-42 were 2.23 × 105, 1.42 × 105, 1.42 × 105, 2.62 × 104, 2.23 × 105 and 8.09 × 104, respectively. Then, antioxidant activities in vitro were investigated on the basis of DPPH radical assay, reducing power assay, hydroxyl radical assay and superoxide radical assay. Of all polysaccharides fractions, WE-32 and WE-41 had relative higher content of sulfate and GlcA. In addition, WE-32 and WE-41 showed relative stronger antioxidant activity and inhibitory activity in vitro. The antioxidant activities of polysaccharides were not a function of a single factor but a combination of several factors, such as monosaccharide composition, molecular weights, protein content, uronic acid and sulfate content.
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Affiliation(s)
- Xia Li
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541004, China.
| | - Feng Xiong
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Yufeng Liu
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Feifei Liu
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Zaibin Hao
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541004, China
| | - Huiying Chen
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541004, China.
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Palanisamy S, Vinosha M, Marudhupandi T, Rajasekar P, Prabhu NM. Isolation of fucoidan from Sargassum polycystum brown algae: Structural characterization, in vitro antioxidant and anticancer activity. Int J Biol Macromol 2017; 102:405-412. [PMID: 28400184 DOI: 10.1016/j.ijbiomac.2017.03.182] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/10/2017] [Accepted: 03/29/2017] [Indexed: 12/21/2022]
Abstract
In this study antioxidant and anticancer effect of fucoidan isolated from brown seaweed Sargassum polycystum was investigated. The total yield of fucoidan was 4.51±0.24%, of these, 46.8% of fucose and 22.35±0.23% of sulphate respectively. The structural characteristic of fucoidan was analyzed by Fourier transform infrared spectroscopy and nuclear magnetic resonance. The antioxidant properties were determined by DPPH scavenging, reducing power and total antioxidant assays. The maximum DPPH scavenging activity (61.2±0.33%), reducing ability (67.56±0.26%) and total antioxidant activity (65.3±0.66%) were obtained at 1000μg/ml of fucoidan. The cytotoxicity effect of fucoidan showed a higher percentage (90.4±0.25%) of inhibition against the MCF-7 cell line at 150μg/ml with an estimated IC50 at 50μg/ml. Further, cytomorphological and apoptosis changes of fucoidan treated cells were observed under inverted light microscope and confocal laser scanning microscope (CLSM). The results demonstrated that the isolated fucoidan from S. polycystum possessed potent antioxidant and anticancer properties.
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Affiliation(s)
- Subramanian Palanisamy
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, India
| | - Manoharan Vinosha
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, India
| | - Thangapandi Marudhupandi
- Centre for Ocean Research, Sathyabama University, Jeppiaar Nagar, Chennai 600 119, India; Hi-Tech Vet Pharma, Animal Health Solution, Research & Development, Brindavanam, Nellore - 524 001, A.P, India
| | - Periyannan Rajasekar
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, India
| | - Narayanan Marimuthu Prabhu
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630 004, India.
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15
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Kolsi RBA, Salah HB, Jardak N, Chaaben R, Jribi I, Feki AE, Rebai T, Jamoussi K, Allouche N, Blecker C, Belghith H, Belghith K. Sulphated polysaccharide isolated from Sargassum vulgare: Characterization and hypolipidemic effects. Carbohydr Polym 2017; 170:148-159. [PMID: 28521980 DOI: 10.1016/j.carbpol.2017.04.083] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/10/2017] [Accepted: 04/25/2017] [Indexed: 10/19/2022]
Abstract
A sulphated polysaccharide from brown algae Sargassum vulgare (SVSP) was extracted and examined with respect to chemical, structural characterization and hypolipidemic effects. SVSP consisted mainly of sulphate and total sugars with low levels of lipids and proteins. Its structure was studied by nuclear magnetic resonance (RMN), gas chromatography-mass spectrometry (GC-MS), infra-red spectroscopic, differential scanning calorimetry and X-ray diffraction analysis. Allowing us therefore to revealed that SVSP was composed of glucose, rhamnose, xylose, galactose, mannose and arabinose with XRD pattern that was typical for a semi-crystalline polymer and complexities of the spectra reflected its homogeneous structure. The administration of SVSP to obese rats is effective in lowering the body weight and inhibiting the lipase activity leading to notable regulation of lipid profile, increasing the activities of antioxidant enzymes, limiting lipid peroxidation; and protects liver-kidney functions proved by a decrease in the levels of toxicity parameters in blood, confirmed by histological study.
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Affiliation(s)
| | - Hichem Ben Salah
- Laboratory of chemistry of Natural Substances, Faculty of Sciences of Sfax, PB 802, 3018 Sfax, Tunisia
| | - Neila Jardak
- Research Unit of anatomy, histology and embryology, Faculty of Medicine Sfax, Tunisia
| | - Rim Chaaben
- Biochemistry Laboratory, CHU Hedi Chaker, Sfax, Tunisia
| | - Imed Jribi
- Biodiversity Unit and Aquatic Ecosystems, Faculty of Sciences of Sfax, 3038 Sfax, Tunisia
| | | | - Tarak Rebai
- Research Unit of anatomy, histology and embryology, Faculty of Medicine Sfax, Tunisia
| | | | - Noureddine Allouche
- Laboratory of chemistry of Natural Substances, Faculty of Sciences of Sfax, PB 802, 3018 Sfax, Tunisia
| | - Cristophe Blecker
- Unité de Technologie des Industries Agro-alimentaires, Faculté des Sciences Agronomiques de Gembloux, passage des Déportés 2, 5030 Gembloux, Belgium
| | - Hafedh Belghith
- Enzyme and Bioconversion Unit, Biotechnology Center of Sfax, Tunisia
| | - Karima Belghith
- Laboratory of Plant Biotechnology, Faculty of Sciences of Sfax, 3038 Sfax, Tunisia
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16
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Wang ZJ, Xu W, Liang JW, Wang CS, Kang Y. EFFECT OF FUCOIDAN ON B16 MURINE MELANOMA CELL MELANIN FORMATION AND APOPTOSIS. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2017. [PMID: 28638878 PMCID: PMC5471462 DOI: 10.21010/ajtcam.v14i4.18] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Background: : Fucoidan is a complex sulfated polysaccharide extracted from brown seaweed and has a wide variety of biological activities. It not only inhibits cancer cell growth but also inhibits tyrosinase in vitro. Therefore, it is of interest to investigate the effect of fucoidan on B16 murine melanoma cells as the findings may provide new insights into the underlying mechanism regarding the inhibition of melanin formation by fucoidan. In the present study, we aimed to investigate the anti-melanogenic effect of fucoidan and its inhibitory effect on B16 cells. Materials and Methods: The influence of fucoidan on B16 melanoma cells and cellular tyrosinase was examined. Cell viability was examined by the cell counting kit-8 assay. Cellular tyrosinase activity and melanin content were determined using spectrophotometric methods and protein expression was analyzed by immunoblotting. Morphological changes in B16 melanoma cells were examined by phase contrast microscopy and apoptosis was analyzed by flow cytometry. Results: In vitro studies were performed using cell viability analysis and showed that fucoidan significantly decreased viable cell number in a dose-response manner with an IC50 of 550 ±4.3 µg/mL. Cell morphology was altered and significant apoptosis was induced when cells were exposed to 550 µg/mL fucoidan for 48 h. Conclusion: This study provides substantial evidence to show that fucoidan inhibits B16 melanoma cell proliferation and cellular tyrosinase activity. Fucoidan may be useful in the treatment of hyperpigmentation and as a skin-whitening agent in the cosmetics industry.
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Affiliation(s)
- Zhi-Jiang Wang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, P. R. China
| | - Wei Xu
- School of Biomedical Engineering, Bio-ID Center, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Jian-Wen Liang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, P. R. China
| | - Cai-Sheng Wang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, P. R. China
| | - Yani Kang
- School of Biomedical Engineering, Bio-ID Center, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
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17
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Said MM, Ezz MK, Matloub AA. Protective effect of sulfated polysaccharide isolated fromUlva fasciataagainst galactosamine-induced liver injury in rats. J Food Biochem 2017. [DOI: 10.1111/jfbc.12383] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mahmoud M. Said
- Biochemistry Department, Faculty of Science; Ain Shams University; Cairo Egypt
| | - Magda K. Ezz
- Biochemistry Department, Faculty of Science; Ain Shams University; Cairo Egypt
| | - Azza A. Matloub
- Pharmacognosy Department, Research of Pharmaceutical and Drug Division; National Research Center; Dokki Giza Egypt
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18
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Ben Gara A, Ben Abdallah Kolsi R, Chaaben R, Hammami N, Kammoun M, Paolo Patti F, El Feki A, Fki L, Belghith H, Belghith K. Inhibition of key digestive enzymes related to hyperlipidemia and protection of liver-kidney functions by Cystoseira crinita sulphated polysaccharide in high-fat diet-fed rats. Biomed Pharmacother 2017; 85:517-526. [PMID: 27903424 DOI: 10.1016/j.biopha.2016.11.059] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/09/2016] [Accepted: 11/14/2016] [Indexed: 12/21/2022] Open
Abstract
The objective of this current study was to investigate the possible hyperlipidemic and antioxidative effects of Cystoseira crinita sulfated polysaccharide (CCSP) in rats fed with a high-fat diet, exhibited an inhibitory activity on pancreatic lipase in vitro. In vivo administration of this extract to HFD-rats lowered body weight and potentially inhibited key enzymes of lipid metabolism and absorption as lipase activity in both plasma and small intestine, which led to a notable decrease of blood LDL- cholesterol (LDL-Ch) and triglycerides (TG) levels, and an increase in HDL-cholesterol (HDL-Ch) levels in HFD-rats. CCSP was also observed to protect the liver-kidney functions efficiently, by decreasing of aspartate transaminase (AST), alanine transaminase (ALT), lactate dehydrogenase (LDH) and Creatine phosphokinase (CPK) activities and creatinine, albumin, T-bilirubin, uric acid, and urea rates in plasma. The histological analysis of liver and kidney tissues further established the positive effect of CCSP.
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Affiliation(s)
- Amel Ben Gara
- Laboratory of Plant Biotechnology Applied to the Improvement of Cultures, Faculty of Sciences of Sfax, Sfax, Tunisia; Stazione Zoologica 'A. Dohrn', Functional and Evolutionary Ecology Laboratory, Punta S. Pietro, Ischia Naples, Italy,.
| | - Rihab Ben Abdallah Kolsi
- Laboratory of Plant Biotechnology Applied to the Improvement of Cultures, Faculty of Sciences of Sfax, Sfax, Tunisia
| | - Rim Chaaben
- Biochemistry Laboratory, CHU Hedi Chaker, Sfax, Tunisia
| | - Nadia Hammami
- Laboratory of Plant Biodiversity and Dynamic of Ecosystems in Arid Area, Faculty of Sciences of Sfax, Sfax, Tunisia
| | - Majed Kammoun
- Laboratory of Chemistry of Natural Products, Faculty of Sciences, University of Sfax, B.P. 1171, 3000 Sfax, Tunisia
| | - Francesco Paolo Patti
- Stazione Zoologica 'A. Dohrn', Functional and Evolutionary Ecology Laboratory, Punta S. Pietro, Ischia Naples, Italy
| | | | - Lotfi Fki
- Laboratory of Plant Biotechnology Applied to the Improvement of Cultures, Faculty of Sciences of Sfax, Sfax, Tunisia
| | - Hafedh Belghith
- Laboratory of Molecular Biology of Eukaryotes Center of Biotechnology of Sfax, Tunisia
| | - Karima Belghith
- Laboratory of Plant Biotechnology Applied to the Improvement of Cultures, Faculty of Sciences of Sfax, Sfax, Tunisia
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19
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Adil M, Kandhare AD, Ghosh P, Venkata S, Raygude KS, Bodhankar SL. Ameliorative effect of naringin in acetaminophen-induced hepatic and renal toxicity in laboratory rats: role of FXR and KIM-1. Ren Fail 2016; 38:1007-20. [DOI: 10.3109/0886022x.2016.1163998] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Park J, Yeom M, Hahm DH. Fucoidan improves serum lipid levels and atherosclerosis through hepatic SREBP-2-mediated regulation. J Pharmacol Sci 2016; 131:84-92. [PMID: 27094367 DOI: 10.1016/j.jphs.2016.03.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 03/08/2016] [Accepted: 03/14/2016] [Indexed: 12/21/2022] Open
Abstract
Hyperlipidemia is associated with increased risk of the development of cardiovascular diseases. Although a great deal of attention has been paid to the hypolipidemic activity of fucoidan, complex polysaccharides from brown seaweeds, the underlying mechanism is still unclear. This study was performed to investigate whether and how fucoidan has lipid-lowering potential in poloxamer-407 (P407)-induced hyperlipidemic mice. Fucoidan treatment 2 h after acute administration of P407 in these mice significantly reduced serum total cholesterol, triglycerides, and LDL cholesterol levels, but increased the levels of HDL cholesterol. In HepG2 hepatocytes and the liver, fucoidan decreased the expression of FAS and ACC mRNA with no or only a moderate inhibitory effect on SREBP-1c mRNA expression. Furthermore, fucoidan attenuated the hepatic expression of mature SREBP-2 protein with a subsequent decrease in hepatic HMG-CoA reductase mRNA expression and an increase in hepatic LDL receptor mRNA expression. In addition, atherosclerotic lesions in the aorta of chronically P407-treated mice were also reduced by fucoidan. These findings indicate that fucoidan improves serum lipid levels by regulating the expression of key enzymes of cholesterol and triglyceride syntheses in the liver through modulation of SREBP-2.
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Affiliation(s)
- Jinhee Park
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Mijung Yeom
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Dae-Hyun Hahm
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea; Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea.
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21
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de Jesus Raposo MF, de Morais AMB, de Morais RMSC. Marine polysaccharides from algae with potential biomedical applications. Mar Drugs 2015; 13:2967-3028. [PMID: 25988519 PMCID: PMC4446615 DOI: 10.3390/md13052967] [Citation(s) in RCA: 322] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 04/26/2015] [Accepted: 05/04/2015] [Indexed: 02/06/2023] Open
Abstract
There is a current tendency towards bioactive natural products with applications in various industries, such as pharmaceutical, biomedical, cosmetics and food. This has put some emphasis in research on marine organisms, including macroalgae and microalgae, among others. Polysaccharides with marine origin constitute one type of these biochemical compounds that have already proved to have several important properties, such as anticoagulant and/or antithrombotic, immunomodulatory ability, antitumor and cancer preventive, antilipidaemic and hypoglycaemic, antibiotics and anti-inflammatory and antioxidant, making them promising bioactive products and biomaterials with a wide range of applications. Their properties are mainly due to their structure and physicochemical characteristics, which depend on the organism they are produced by. In the biomedical field, the polysaccharides from algae can be used in controlled drug delivery, wound management, and regenerative medicine. This review will focus on the biomedical applications of marine polysaccharides from algae.
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Affiliation(s)
- Maria Filomena de Jesus Raposo
- CBQF-Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa/Porto, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401 Porto, Portugal.
| | - Alcina Maria Bernardo de Morais
- CBQF-Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa/Porto, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401 Porto, Portugal.
| | - Rui Manuel Santos Costa de Morais
- CBQF-Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa/Porto, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401 Porto, Portugal.
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22
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Bilan MI, Grachev AA, Shashkov AS, Thuy TTT, Van TTT, Ly BM, Nifantiev NE, Usov AI. Preliminary investigation of a highly sulfated galactofucan fraction isolated from the brown alga Sargassum polycystum. Carbohydr Res 2013; 377:48-57. [PMID: 23810980 DOI: 10.1016/j.carres.2013.05.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 05/27/2013] [Accepted: 05/30/2013] [Indexed: 11/27/2022]
Abstract
A fucoidan preparation was isolated from the brown alga Sargassum polycystum (Fucales, Sargassaceae). The preparation was fractionated by anion-exchange chromatography, and two highly sulfated fractions F3 and F4 were obtained. The fractions were quite similar in composition, but different in chemical structure. F4 was analyzed by chemical methods, including desulfation, methylation, Smith degradation, and partial acid hydrolysis with mass-spectrometric monitoring, as well as by NMR spectroscopy. Several 2D NMR procedures, including HMQC-TOCSY and HMQC-NOESY, were used to obtain reliable structural information from the complex spectra. Molecules of F4 were shown to contain a backbone built up mainly of 3-linked α-L-fucopyranose 4-sulfate residues, as in many other fucoidans, but rather short sequences of these residues are interspersed by single 2-linked α-D-galactopyranose residues also sulfated at position 4. This rather unusual structural feature should have a great influence on the conformation of the polymeric molecule and may be important for biological activity of the polysaccharide. Hence, F4 is an example of a new sulfated galactofucan isolated from the brown alga. According to the data obtained, the distribution of galactose residues along the polysaccharide backbone seems to be not strictly regular, but the definitive sequence of monomers in the polymeric molecules awaits additional investigation.
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Affiliation(s)
- Maria I Bilan
- ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
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23
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Motshakeri M, Ebrahimi M, Goh YM, Matanjun P, Mohamed S. Sargassum polycystum reduces hyperglycaemia, dyslipidaemia and oxidative stress via increasing insulin sensitivity in a rat model of type 2 diabetes. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:1772-8. [PMID: 23208488 DOI: 10.1002/jsfa.5971] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 09/23/2012] [Accepted: 10/26/2012] [Indexed: 01/10/2024]
Abstract
BACKGROUND Sargassum polycystum, a brown seaweed, contains various nutrients and bioactive compounds that have antioxidant and healing properties. The research hypothesises that antioxidants and pigments in dietary S. polycystum extracts can improve insulin sensitivity, blood sugar levels and blood lipid levels in a rat model of type 2 diabetes. The diabetes was induced by a high-sugar, high-fat diet for 16 weeks to enhance insulin resistance, followed by a low-dose intraperitoneal injection of streptozotocin (35 mg kg(-1) body weight). The doses of S. polycystum tested on diabetic rats were 150 and 300 mg kg(-1) body weight for the ethanolic extract or 150 and 300 mg kg(-1) for the water extract. Normal rats, untreated diabetic and metformin-treated diabetic rats (n = 6) were used as control. RESULTS Both doses of the alcohol extract of S. polycystum and the 300 mg kg(-1) water extract, significantly reduced blood glucose and glycosylated haemoglobin (HbA1C ) levels. Serum total cholesterol, triglyceride levels and plasma atherogenic index were significantly decreased after 22 days treatment in all seaweed groups. Unlike metformin, S. polycystum did not significantly change plasma insulin in the rats, but increased the response to insulin. CONCLUSION The consumption of either ethanolic or water extracts of S. polycystum dose dependently reduced dyslipidaemia in type 2 diabetic rats. S. polycystum is a potential insulin sensitiser, for a comestible complementary therapy in the management of type 2 diabetes which can help reduce atherogenic risk.
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Affiliation(s)
- Mahsa Motshakeri
- Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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24
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Abstract
Seaweeds, being prolific sources of bioactive components have garnered
unprecedented interest in recent times. The complex polysaccharides from the brown,
red and green seaweeds possess broad spectrum therapeutic properties. Especially,
the sulfated polysaccharides, viz. fucans,
carrageenans and ulvans have exhibited strong antioxidant, antitumor,
immunostimulatory, anti-inflammatory, pulmonary fibrosis
anticoagulant/antithrombotic, lipid lowering, antiviral, antibacterial,
antiprotozoan, hyperplasia prevention, gastrointestinal, regenerative and nano
medicine applications. Considering the immense biomedical prospects of sulfated
polysaccharides, the profound and emerging functional properties published in recent
times will be discussed here with experimental evidences. The limitations of the
seaweed-derived sulfated polysaccharides in healthcare will be summarized.
Strategies to maximize extraction and bioavailability will be pondered.
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Affiliation(s)
- Seema Patel
- Department of Biotechnology, Lovely Professional University, Jalandhar, 144402 Punjab India
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25
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de Oliveira e Silva AM, Vidal-Novoa A, Batista-González AE, Pinto JR, Portari Mancini DA, Reina-Urquijo W, Mancini-Filho J. In vivo and in vitro antioxidant activity and hepatoprotective properties of polyphenols from Halimeda opuntia (Linnaeus) Lamouroux. Redox Rep 2012; 17:47-53. [PMID: 22564347 PMCID: PMC6837672 DOI: 10.1179/1351000212y.0000000003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Antioxidant activity and hepatoprotective properties of the aqueous extract and tetrahydrofuran-extracted phenolic fractions of Halimeda opuntia (Linnaeus) Lamouroux were investigated in rats with chemically induced liver injury. Total polyphenols were determined by using the Folin-Ciocalteau reagent. Liver damage was induced by CCl(4) and assessed by a histological technique. Reverse transcription/polymerase chain reaction (RT/PCR) analysis showed increased superoxide dismutase (SOD) and catalase (CAT) gene expression and activities in the group treated with free phenolic acid (FPA) fractions of H. opuntia, suggesting inducing effects on both enzymes. In addition, rats treated with FPA fractions displayed lower liver thiobarbituric acid reactive substance (TBARS) levels than those observed for rats in the CCl(4)-treated group. These data suggest that the phenolic fractions from H. opuntia may protect the liver against oxidative stress-inducing effects of chemicals by modulating its antioxidant enzymes and oxidative status.
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Affiliation(s)
- Ana Mara de Oliveira e Silva
- Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brasil.
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26
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Delattre C, Chaisemartin L, Favre-Mercuret M, Berthon J, Rios L. Biological effect of β-(1,3)-polyglucuronic acid sodium salt on lipid storage and adipocytes differentiation. Carbohydr Polym 2012; 87:775-783. [DOI: 10.1016/j.carbpol.2011.08.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 08/13/2011] [Accepted: 08/21/2011] [Indexed: 11/24/2022]
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27
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Chan YY, Kim KH, Cheah SH. Inhibitory effects of Sargassum polycystum on tyrosinase activity and melanin formation in B16F10 murine melanoma cells. JOURNAL OF ETHNOPHARMACOLOGY 2011; 137:1183-8. [PMID: 21810462 DOI: 10.1016/j.jep.2011.07.050] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 05/27/2011] [Accepted: 07/18/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sargassum polycystum, a type of brown seaweed, has been used for the treatment of skin-related disorders in traditional medicine. AIM OF THE STUDY The aim of the present study is to investigate the antimelanogenesis effect of Sargassum polycystum extracts by cell-free mushroom tyrosinase assay followed by cell viability assay, cellular tyrosinase assay and melanin content assay using B16F10 murine melanoma cells. MATERIALS AND METHODS Sargassum polycystum was extracted with 95% ethanol and further fractionated with hexane, ethyl acetate and water. The ethanolic crude extract and its fractionated extracts were tested for their potential to act as antimelanogenesis or skin-whitening agents by their abilities to inhibit tyrosinase activity in the cell-free mushroom tyrosinase assay and cellular tyrosinase derived from melanin-forming B16F10 murine melanoma cells. The tyrosinase inhibitory activity was correlated to the inhibition of melanin production in α-MSH-stimulated and unstimulated B16F10 cells. RESULTS Sargassum polycystum ethanolic extract and its fractions had little or no inhibitory effect on mushroom tyrosinase activity. However, when tested on cellular tyrosinase, the ethanolic extract and its non-polar fraction, hexane fraction (SPHF), showed significant inhibition of cellular tyrosinase activity. In parallel to its cellular tyrosinase inhibitory activity, SPHF was also able to inhibit basal and α-MSH-stimulated melanin production in B16F10 cells. CONCLUSIONS Our findings showed that (i) cellular tyrosinase assay is more reliable than mushroom tyrosinase assay in the initial testing of potential antimelanogenesis agents and, (ii) SPHF inhibited melanogenesis by inhibiting cellular tyrosinase activity. SPHF may be useful for treating hyperpigmentation and as a skin-whitening agent in cosmetics industry.
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Affiliation(s)
- Y Y Chan
- Department of Physiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
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28
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Jiao G, Yu G, Zhang J, Ewart HS. Chemical structures and bioactivities of sulfated polysaccharides from marine algae. Mar Drugs 2011; 9:196-223. [PMID: 21566795 PMCID: PMC3093253 DOI: 10.3390/md9020196] [Citation(s) in RCA: 560] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 01/15/2011] [Accepted: 01/26/2011] [Indexed: 12/01/2022] Open
Abstract
Sulfated polysaccharides and their lower molecular weight oligosaccharide derivatives from marine macroalgae have been shown to possess a variety of biological activities. The present paper will review the recent progress in research on the structural chemistry and the bioactivities of these marine algal biomaterials. In particular, it will provide an update on the structural chemistry of the major sulfated polysaccharides synthesized by seaweeds including the galactans (e.g., agarans and carrageenans), ulvans, and fucans. It will then review the recent findings on the anticoagulant/antithrombotic, antiviral, immuno-inflammatory, antilipidemic and antioxidant activities of sulfated polysaccharides and their potential for therapeutic application.
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Affiliation(s)
- Guangling Jiao
- National Research Council Canada, Institute for Marine Biosciences, Halifax, NS, B3H 3Z1, Canada;
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003, China
| | - Guangli Yu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003, China
| | - Junzeng Zhang
- National Research Council Canada, Institute for Nutrisciences and Health, Charlottetown, PEI, C1A 4P3, Canada;
| | - H. Stephen Ewart
- National Research Council Canada, Institute for Marine Biosciences, Halifax, NS, B3H 3Z1, Canada;
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Improvement of lipid profile and antioxidant of hypercholesterolemic albino rats by polysaccharides extracted from the green alga Ulva lactuca Linnaeus. Saudi J Biol Sci 2011; 18:333-40. [PMID: 23961145 DOI: 10.1016/j.sjbs.2011.01.005] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Revised: 01/05/2011] [Accepted: 01/29/2011] [Indexed: 11/23/2022] Open
Abstract
Sulfated polysaccharides from Ulva lactuca were extracted in hot water and precipitated by ethanol then orally gavaged to rats fed on a hypercholesterolemic diet for 21 days to evaluate the antihypercholesterolemic and antioxidant actions. Atorvastatine Ca (Lipitor) was used as a reference drug. The intragastric administration of U. lactuca extract to hypercholesterolemic rats caused significant decrease of serum total lipids, triglycerides, total cholesterol, LDL-cholesterol and vLDL-cholesterol levels. Whereas, HDL-cholesterol concentration was markedly increased by 180%. Aqueous extract showed a significant ameliorative action on elevated atherogenic index, creatine kinase and lactate dehydrogenase activities of hypercholesterolemic group. Furthermore, serum activities of transaminases and alkaline phosphatase were also improved. High fat diet intake caused a highly significantly elevated serum urea, creatinine concentration. These effects were reversed by oral administration of U. lactuca extract. Sulfates polysaccharides extract of U. lactuca ameliorate hepatic enzymatic (catalase, glutathione peroxidase and superoxide dismutase), non-enzymatic (reduced glutathione & total thiol) antioxidant defenses and thiobarbituric acid reactive substances. In conclusion, the tested U. lactuca polysaccharides extract has potent hypocholesterolemic and antioxidant effects in experimentally-induced hypercholesterolemic animal model.
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Yokota T, Nagashima M, Ghazizadeh M, Kawanami O. Increased effect of fucoidan on lipoprotein lipase secretion in adipocytes. Life Sci 2009; 84:523-9. [PMID: 19302807 DOI: 10.1016/j.lfs.2009.01.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2008] [Revised: 12/08/2008] [Accepted: 01/27/2009] [Indexed: 11/15/2022]
Abstract
AIMS Fucoidan, a sulfated polysaccharide extracted from brown seaweed (F. vesiculosus) is recognized as an effective anticoagulant but its anti-lipidemic potency has not been well defined. We investigated the effect of fucoidan on lipoprotein lipase (LPL) secretion by human adipocytes. MAIN METHODS LPL mRNA and protein expressions were measured using semi-quantitative RT-PCR, ELISA and immunohistochemistry in cultured adipocytes with or without fucoidan treatment. LPL enzyme activity was determined by a fluorometric assay. KEY FINDINGS In cultured adipocytes, fucoidan induced LPL secretion in a dose- and time-dependent manner. An initial increase in LPL was maintained at a significant level but much slower than that in heparin-treated cells. Fucoidan also dose-dependently induced a cofactor of LPL, the apolipoprotein C-II (ApoC-II) secretion. In fucoidan-treated cells, LPL mRNA was time-dependently increased and LPL protein expression was also inceased. Treatment with both heparin and fucoidan showed no further increase in media LPL activity compared to heparin alone. In the conditioned medium from fucoidan-treated cells followed for 4 h, LPL activity decayed exponentially with half-life of about 180 min. In addition, the extracellular LPL mass in cycloheximide (a protein synthesis inhibitor) and fucoidan-treated cells did not change markedly, but LPL shifted significantly from active to inactive form. SIGNIFICANCE These results suggest that fucoidan acts like heparin by releasing LPL in addition to increasing the intracellular transport and decreasing the degradation of LPL in the medium. Furthermore, LPL and ApoC-II secretion induced by fucoidan may be involved in regulating plasma triglyceride lowering clearance.
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Affiliation(s)
- Takashi Yokota
- Department of Molecular Biology, Institute of Development and Aging Sciences, Graduate School of Medicine, Nippon Medical School, Kawasaki 211-0063, Japan.
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Devaki T, Sathivel A, BalajiRaghavendran HR. Stabilization of mitochondrial and microsomal function by polysaccharide of Ulva lactuca on D-Galactosamine induced hepatitis in rats. Chem Biol Interact 2009; 177:83-8. [DOI: 10.1016/j.cbi.2008.09.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Revised: 09/29/2008] [Accepted: 09/30/2008] [Indexed: 12/18/2022]
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Hwang HJ, Kwon MJ, Kim IH, Nam TJ. Chemoprotective effects of a protein from the red algae Porphyra yezoensis on acetaminophen-induced liver injury in rats. Phytother Res 2008; 22:1149-53. [PMID: 18729249 DOI: 10.1002/ptr.2368] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Seaweeds contribute to the maintenance of health through their nutritional and medicinal properties. The effects of PYP, a 14 kDa protein isolated from a hot-water extract of the marine alga Porphyra yezoensis, on AAP-induced liver injury in rats was evaluated. AAP induced acute liver injury and AAP-induced hepatotoxicity is the leading cause of liver failure. In this study, male Sprague-Dawley rats were assigned to one of three treatment groups: control, AAP, or AAP + PYP. Compared with the control group, liver tissue from the AAP group showed increased levels of caspase-3 activity and DNA fragmentation, decreased levels of GSH and increased serum GOT/GPT levels. In contrast, treatment with AAP + PYP produced levels of caspase-3 activity, DNA fragmentation, GSH and GOT/GPT that matched the values seen in the control group. It is concluded that PYP may prevent AAP-induced liver injury.
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Affiliation(s)
- Hye-Jung Hwang
- Faculty of Food Science and Biotechnology, Pukyong National University, Busan 608-737, Korea
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Hwang HJ, Kim IH, Nam TJ. Effect of a glycoprotein from Hizikia fusiformis on acetaminophen-induced liver injury. Food Chem Toxicol 2008; 46:3475-81. [PMID: 18809456 DOI: 10.1016/j.fct.2008.08.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Revised: 07/30/2008] [Accepted: 08/26/2008] [Indexed: 10/21/2022]
Abstract
In this study, we isolated a glycoprotein from the brown alga Hizikia fusiformis (HFGP) and examined whether it could protect against Acetaminophen (AAP)-induced liver injury in vivo and in vitro. AAP, one of the most commonly abused drugs, may cause fatal liver injury. An analysis of the effects of HFGP on AAP toxicity in rats revealed that the serum glutamic pyruvic transaminase level was restored to the control level and glutathione level was also increased by co-treatment with HFGP and AAP. Furthermore, HFGP co-treatment decreased caspase-3/-9 activity. These results indicate that HFGP may inhibit AAP-induced liver injury in Sprague-Dawley rats. Several lines of evidence indicate that oxidative stress plays an important role in AAP-induced liver injury and mitogen-activated protein kinase (MAPK) signaling is involved in the regulation of oxidative stress. Therefore, Western blotting was used to determine which MAPK signaling pathway is involved in the protective effect of HFGP against AAP toxicity in HepG2 cells. We found that ERK activation was involved in the protective effect of HFGP against AAP-induced cell death. Therefore, we propose that MAPK signaling is involved in the protective effect of HFGP against AAP-induced liver injury.
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Affiliation(s)
- Hye-Jeong Hwang
- Department of Food Science and Biotechnology, Pukyong National University, Busan 608-737, Republic of Korea
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Hwang HJ, Kwon MJ, Kim IH, Nam TJ. The effect of polysaccharide extracted from the marine alga Capsosiphon fulvescens on ethanol administration. Food Chem Toxicol 2008; 46:2653-7. [PMID: 18524446 DOI: 10.1016/j.fct.2008.04.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Revised: 03/18/2008] [Accepted: 04/21/2008] [Indexed: 11/17/2022]
Abstract
Seaweed extracts have recently been found to have antioxidant and antitumor activities. Capsosiphon fulvescens (Cf) is a green alga and nutrient-dense food source. In a previous study, we extracted polysaccharide from Cf (Cf-PS) and demonstrated its antitumor effect in gastric cancer cells. In this report, we describe the protective effect of Cf-PS against alcohol-induced gastric injury in rats and adenocarcinoma (AGS) cells. In vivo assay revealed stomach damage in rats treated with alcohol alone; however, the stomach condition of rats co-treated with Cf-PS and alcohol matched that of the control group. Cf-PS also inhibited alcohol-induced cell death in AGS cells. Compared with alcohol treatment alone, Cf-PS and alcohol co-treatment increased phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2) and Akt but inhibited poly-ADP-ribose polymerase (PARP) cleavage. Thus, ERK1/2 and Akt activation are instrumental in the protective effect of Cf-PS against alcohol-induced cell death in AGS cells. Moreover, Cf-PS treatment reduced the expressions of cyclooxygenase-2 (COX-2) and the inducible form of nitric oxide (iNOS), proteins related to ulcers. These results suggest that Cf-PS could help protect against alcohol-induced peptic ulcers.
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Affiliation(s)
- Hye-Jeong Hwang
- Department of Food Science and Biotechnology, Pukyong National University, Busan 608-737, Republic of Korea
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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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Narayan S, Devi R, Devi CS. Role of Pterocarpus santalinus against mitochondrial dysfunction and membrane lipid changes induced by ulcerogens in rat gastric mucosa. Chem Biol Interact 2007; 170:67-75. [DOI: 10.1016/j.cbi.2007.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2007] [Revised: 07/03/2007] [Accepted: 07/05/2007] [Indexed: 12/01/2022]
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Torres MR, Sousa APA, Silva Filho EAT, Melo DF, Feitosa JPA, de Paula RCM, Lima MGS. Extraction and physicochemical characterization of Sargassum vulgare alginate from Brazil. Carbohydr Res 2007; 342:2067-74. [PMID: 17585891 DOI: 10.1016/j.carres.2007.05.022] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2006] [Revised: 05/21/2007] [Accepted: 05/22/2007] [Indexed: 11/28/2022]
Abstract
Alginate fractions from Sargassum vulgare brown seaweed were characterized by (1)H NMR and fluorescence spectroscopy and by rheological measurements. The alginate extraction conditions were investigated. In order to carry out the structural and physicochemical characterization, samples extracted for 1 and 5h at 60 degrees C were further purified by re-precipitation with ethanol and denoted as SVLV (S. vulgare low viscosity) and SVHV (S. vulgare high viscosity), respectively. The M/G ratio values for SVLV and SVHV were 1.56 and 1.27, respectively, higher than the ratio for most Sargassum spp. alginates (0.19-0.82). The homopolymeric blocks F(GG) and F(MM) of these fractions characterized by (1)H NMR spectroscopy were 0.43 and 0.55 for SVHV and 0.36 and 0.58 for SVLV samples, respectively, these values typically being within 0.28-0.77 and 0.07-0.41, respectively. Therefore, the alginate samples from S. vulgare are much richer in mannuronic block structures than those from other Sargassum species. Values of M(w) for alginate samples were also calculated using intrinsic viscosity data. The M(w) value for SVLV (1.94 x 10(5)g/mol) was lower than that for SVHV (3.3 x 10(5)g/mol). Newtonian behavior was observed for a solution concentration as high as 0.7% for SVLV, while for SVHV the solutions behaved as a Newtonian fluid up to 0.5%. The optimal conditions for obtaining the alginates from S. vulgare were 60 degrees C and 5h extraction. Under these conditions, a more viscous alginate in higher yield was extracted from the seaweed biomass.
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Affiliation(s)
- Marcia R Torres
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, CP 6020, CEP 60455-760, Fortaleza, Ceará, Brazil
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Josephine A, Veena CK, Amudha G, Preetha SP, Varalakshmi P. Protective role of sulphated polysaccharides in abating the hyperlipidemic nephropathy provoked by cyclosporine A. Arch Toxicol 2007; 81:371-9. [PMID: 17019561 DOI: 10.1007/s00204-006-0151-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2006] [Accepted: 08/28/2006] [Indexed: 10/24/2022]
Abstract
Cyclosporine A (CsA)-induced nephrotoxicity hampers the immense therapeutic potential of such a powerful immunosuppressant. The present study was conducted with an aim to explicate the contribution of sulphated polysaccharides (SPS) in abating the lipid abnormalities induced by CsA in the rat kidney. Hyperlipidemia associated with nephrotic syndrome may play a role in the worsening of renal function. Male albino Wistar rats sorted into four groups were used for the study. CsA was given at a dose of 25 mg/kg body weight, orally for 21 days. Significant alterations in the lipid profile as well an increase in the activity of cholesterol ester synthase, coupled with a decrease in cholesterol ester hydrolase and lipoprotein lipase enzyme activities were noted in the plasma and kidneys of CsA-administered rats. A marked increase in the lipoprotein fractions, low-density lipoprotein (LDL) and very low density lipoprotein (VLDL), along with a decrease in the HDL level were found in CsA-administered rats. The degree of nephrotoxicity allied with lipid discrepancies was evident from augmented urinary excretion of urea, uric acid and creatinine. Further, an enhanced susceptibility of the apo B-containing lipoproteins (LDL + VLDL) to oxidation in vitro, induced by copper ions was also found in the plasma of CsA given groups. While SPS co-treated groups (5 mg/kg body weight, subcutaneously) revealed a normalized lipid profile and lipid metabolizing enzymes, the supplementation of SPS also brought back the elevated urinary constituents close to that of the controls and substantially minimized the oxidative changes. With these observations, it may be concluded herein that SPS may be an ideal choice as a renoprotective and hypolipidemic agent against CsA-induced hyperlipidemic nephropathy.
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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, India
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Elovaara E, Stockmann-Juvala H, Mikkola J, Gelboin HV. Interactive effects of methyl tertiary-butyl ether (MTBE) and tertiary-amyl methyl ether (TAME), ethanol and some drugs: Triglyceridemia, liver toxicity and induction of CYP (2E1, 2B1) and phase II enzymes in female Wistar rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2007; 23:64-72. [PMID: 21783738 DOI: 10.1016/j.etap.2006.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Revised: 06/19/2006] [Accepted: 07/02/2006] [Indexed: 05/31/2023]
Abstract
The abilities of the gasoline additives methyl tert-butyl ether (MTBE) and tert-amyl methyl ether (TAME) to cause liver damage following oral administration, dosed alone or in combination with model hepatotoxins, were investigated in the rat. Inducibility of liver drug-metabolizing enzyme activities was also studied. Exposure to these ethers (10-20mmol/kg) for 3 days resulted in hepatomegaly (13-30%) and induction of cytochrome P450 (CYP) activity towards N-nitrosodimethylamine (NDMAD), 7-pentoxyresorufin (PROD), and 7-ethoxyresorufin (EROD). Immunoinhibition assays with monoclonal antibodies showed that the ethers were equipotent as inducers of CYP2E1 activity (2-fold increase) but not of CYP2B1, which was elevated up to 260-fold in TAME-treated rats but only by 20-fold in MTBE rats. A slight or no modifying effect was observed on the NADPH:quinone oxidoreductase (NQO1), glutathione S-transferase (GST), and UDP-glucuronosyltransferase (UGT) activities. Alanine aminotransaminase (ALT) and aspartate aminotransaminase (AST) were elevated in blood plasma after administration of the ethers. No dramatic enhancement of liver damage could be detected by plasma enzyme analysis (ALT, AST, alkaline phosphatase, γ-glutamyltransferase) following ether administration (13.5mmol/kg) to rats pretreated with mildly hepatotoxic dosages of ethanol, pyrazole, phenobarbital, acetaminophen (paracetamol), or 13-cis-retinoic acid (13-cis-RA or isotretinoin). Plasma triglycerides increased in TAME-treated rats (1.7-fold) and in all 13-cis-RA-treated groups (2.1-2.8-fold). The findings that MTBE and TAME exhibited a clear but differential inducing effect on two ether-metabolizing CYP forms (2E1 and 2B1) with no marked effect on phase II activities may reflect the importance of these pathways in vivo. The observation that only TAME by itself induced hypertriglyceridemia while acetaminophen- and 13-cis-RA-induced hypertriglyceridemia were aggravated by both ethers, points to differences in their effects on lipid metabolism. TAME was clearly a more potent CNS depressant than MTBE. There was no marked potentiation of drug/chemical-induced acute liver damage either by MTBE or TAME.
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Affiliation(s)
- Eivor Elovaara
- Finnish Institute of Occupational Health, FIN-00250 Helsinki, Finland
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Protective Effects of Mesangi (Capsosiphon fulvecens) on Hepatotoxicity in Carbon Tetrachloride (CCI4)-Intoxicated Rats. ACTA ACUST UNITED AC 2006. [DOI: 10.5352/jls.2006.16.5.734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Raghavendran HB, Sathivel A, Devaki T. Defensive nature of Sargassum polycystum (Brown alga) against acetaminophen-induced toxic hepatitis in rats: role of drug metabolizing microsomal enzyme system, tumor necrosis factor-alpha and fate of liver cell structural integrity. World J Gastroenterol 2006; 12:3829-34. [PMID: 16804966 PMCID: PMC4087929 DOI: 10.3748/wjg.v12.i24.3829] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2005] [Revised: 07/15/2005] [Accepted: 07/28/2005] [Indexed: 02/06/2023] Open
Abstract
AIM To assess the defensive nature of Sargassum polycystum (S. polycystum) (Brown alga) against acetaminophen (AAP)-induced changes in drug metabolizing microsomal enzyme system, tumor necrosis factor (TNF-alpha) and fine structural features of the liver during toxic hepatitis in rats. METHODS Male albino Wistar strain rats used for the study were randomly categorized into 4 groups. Group I consisted of normal control rats fed with standard diet. Group II rats were administered with acetaminophen (800 mg/kg body weight, intraperitoneally). Group III rats were pre-treated with S. polycystum extract alone. Group IV rats were orally pre-treated with S. polycystum extract (200 mg/kg body weight for 21 d) prior to acetaminophen induction (800 mg/kg body weight, intraperitoneally). Serum separated and liver was excised and microsomal fraction was isolated for assaying cytochrome P450, NADPH Cyt P450 reductase and b(5). Serum TNF-alpha was detected using ELISA. Fine structural features of liver were examined by transmission electron microscopy. RESULTS Rats intoxicated with acetaminophen showed considerable impairment in the activities of drug metabolizing microsomal enzymes, such as cytochrome P450, NADPH Cyt P450 reductase and b(5) when compared with the control rats. The rats intoxicated with acetaminophen also significantly triggered serum TNF-alpha when compared with the control rats. These severe alterations in the drug metabolizing enzymes were appreciably prevented in the rats pretreated with S. polycystum. The rats pretreated with S. polycystum showed considerable inhibition in the elevation of TNF-alpha compared to the rats intoxicated with acetaminophen. The electron microscopic observation showed considerable loss of structural integrity of the endoplasmic reticulum, lipid infiltration and ballooning of mitochondria in the acetaminophen-intoxicated rats, whereas the rats treated with S. polycystum showed considerable protection against acetaminophen-induced alterations in structural integrity. CONCLUSION These observations suggest that the animals treated with S. polycystum extract may have the ability to protect the drug metabolizing enzyme system and mitochondrial functional status from free radical attack, thereby showing its defense mechanism in protecting hepatic cells from acetaminophen toxic metabolite N-acetyl-para-benzoquinone-imine (NAPQI).
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