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Giuliani ME, Bigossi G, Lai G, Marcozzi S, Brunetti D, Malavolta M. Marine Compounds and Age-Related Diseases: The Path from Pre-Clinical Research to Approved Drugs for the Treatment of Cardiovascular Diseases and Diabetes. Mar Drugs 2024; 22:210. [PMID: 38786601 PMCID: PMC11123485 DOI: 10.3390/md22050210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
Ageing represents a main risk factor for several pathologies. Among them, cardiovascular diseases (CVD) and type 2 diabetes mellitus (T2DM) are predominant in the elderly population and often require prolonged use of multiple drugs due to their chronic nature and the high proportion of co-morbidities. Hence, research is constantly looking for novel, effective molecules to treat CVD and T2DM with minimal side effects. Marine active compounds, holding a great diversity of chemical structures and biological properties, represent interesting therapeutic candidates to treat these age-related diseases. This review summarizes the current state of research on marine compounds for the treatment of CVD and T2DM, from pre-clinical studies to clinical investigations and approved drugs, highlighting the potential of marine compounds in the development of new therapies, together with the limitations in translating pre-clinical results into human application.
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Affiliation(s)
- Maria Elisa Giuliani
- Advanced Technology Center for Aging Research and Geriatric Mouse Clinic, IRCCS INRCA, 60121 Ancona, Italy; (M.E.G.); (G.B.); (G.L.); (S.M.)
| | - Giorgia Bigossi
- Advanced Technology Center for Aging Research and Geriatric Mouse Clinic, IRCCS INRCA, 60121 Ancona, Italy; (M.E.G.); (G.B.); (G.L.); (S.M.)
| | - Giovanni Lai
- Advanced Technology Center for Aging Research and Geriatric Mouse Clinic, IRCCS INRCA, 60121 Ancona, Italy; (M.E.G.); (G.B.); (G.L.); (S.M.)
| | - Serena Marcozzi
- Advanced Technology Center for Aging Research and Geriatric Mouse Clinic, IRCCS INRCA, 60121 Ancona, Italy; (M.E.G.); (G.B.); (G.L.); (S.M.)
| | - Dario Brunetti
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico “Carlo Besta”, 20126 Milano, Italy;
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Marco Malavolta
- Advanced Technology Center for Aging Research and Geriatric Mouse Clinic, IRCCS INRCA, 60121 Ancona, Italy; (M.E.G.); (G.B.); (G.L.); (S.M.)
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Chellappan DK, Chellian J, Rahmah NSN, Gan WJ, Banerjee P, Sanyal S, Banerjee P, Ghosh N, Guith T, Das A, Gupta G, Singh SK, Dua K, Kunnath AP, Norhashim NA, Ong KH, Palaniveloo K. Hypoglycaemic Molecules for the Management of Diabetes Mellitus from Marine Sources. Diabetes Metab Syndr Obes 2023; 16:2187-2223. [PMID: 37521747 PMCID: PMC10386840 DOI: 10.2147/dmso.s390741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 07/12/2023] [Indexed: 08/01/2023] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder recognized as a major health problem globally. A defective insulin activity contributes to the prevalence and expansion of DM. Treatment of DM is often hampered by limited options of conventional therapies and adverse effects associated with existing procedures. This has led to a spike in the exploration for potential therapeutic agents from various natural resources for clinical applications. The marine environment is a huge store of unexplored diversity of chemicals produced by a multitude of organisms. To date, marine microorganisms, microalgae, macroalgae, corals, sponges, and fishes have been evaluated for their anti-diabetic properties. The structural diversity of bioactive metabolites discovered has shown promising hypoglycaemic potential through in vitro and in vivo screenings via various mechanisms of action, such as PTP1B, α-glucosidase, α-amylase, β-glucosidase, and aldose reductase inhibition as well as PPAR alpha/gamma dual agonists activities. On the other hand, hypoglycaemic effect is also shown to be exerted through the balance of antioxidants and free radicals. This review highlights marine-derived chemicals with hypoglycaemic effects and their respective mechanisms of action in the management of DM in humans.
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Affiliation(s)
- Dinesh Kumar Chellappan
- Department of Life Sciences, International Medical University, Kuala Lumpur, 57000, Malaysia
| | - Jestin Chellian
- Department of Life Sciences, International Medical University, Kuala Lumpur, 57000, Malaysia
| | | | - Wee Jin Gan
- School of Pharmacy, International Medical University, Kuala Lumpur, 57000, Malaysia
| | - Priyanka Banerjee
- Department of Pharmaceutical Technology, School of Medical Sciences, Adamas University, Kolkata, West Bengal, India
| | - Saptarshi Sanyal
- Department of Pharmaceutical Technology, School of Medical Sciences, Adamas University, Kolkata, West Bengal, India
| | | | - Nandini Ghosh
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tanner Guith
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Amitava Das
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jaipur, Rajasthan, 302017, India
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, Uttarakhand, 248007, India
- Center for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Science, Chennai, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Anil Philip Kunnath
- Division of Applied Biomedical Science and Biotechnology, School of Health Sciences, International Medical University, Kuala Lumpur, 57000, Malaysia
| | - Nur Azeyanti Norhashim
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Core Technology Facility, The University of Manchester, Manchester, M13 9NT, UK
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Kuan Hung Ong
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Kishneth Palaniveloo
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, 50603, Malaysia
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3
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Research Progress on the Construction and Application of a Diabetic Zebrafish Model. Int J Mol Sci 2023; 24:ijms24065195. [PMID: 36982274 PMCID: PMC10048833 DOI: 10.3390/ijms24065195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
Diabetes is a metabolic disease characterized by high blood glucose levels. With economic development and lifestyle changes, the prevalence of diabetes is increasing yearly. Thus, it has become an increasingly serious public health problem in countries around the world. The etiology of diabetes is complex, and its pathogenic mechanisms are not completely clear. The use of diabetic animal models is helpful in the study of the pathogenesis of diabetes and the development of drugs. The emerging vertebrate model of zebrafish has many advantages, such as its small size, large number of eggs, short growth cycle, simple cultivation of adult fish, and effective improvement of experimental efficiency. Thus, this model is highly suitable for research as an animal model of diabetes. This review not only summarizes the advantages of zebrafish as a diabetes model, but also summarizes the construction methods and challenges of zebrafish models of type 1 diabetes, type 2 diabetes, and diabetes complications. This study provides valuable reference information for further study of the pathological mechanisms of diabetes and the research and development of new related therapeutic drugs.
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Das R, Rauf A, Mitra S, Emran TB, Hossain MJ, Khan Z, Naz S, Ahmad B, Meyyazhagan A, Pushparaj K, Wan CC, Balasubramanian B, Rengasamy KR, Simal-Gandara J. Therapeutic potential of marine macrolides: An overview from 1990 to 2022. Chem Biol Interact 2022; 365:110072. [PMID: 35952775 DOI: 10.1016/j.cbi.2022.110072] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 01/05/2023]
Abstract
The sea is a vast ecosystem that has remained primarily unexploited and untapped, resulting in numerous organisms. Consequently, marine organisms have piqued the interest of scientists as an abundant source of natural resources with unique structural features and fascinating biological activities. Marine macrolide is a top-class natural product with a heavily oxygenated polyene backbone containing macrocyclic lactone. In the last few decades, significant efforts have been made to isolate and characterize macrolides' chemical and biological properties. Numerous macrolides are extracted from different marine organisms such as marine microorganisms, sponges, zooplankton, molluscs, cnidarians, red algae, tunicates, and bryozoans. Notably, the prominent macrolide sources are fungi, dinoflagellates, and sponges. Marine macrolides have several bioactive characteristics such as antimicrobial (antibacterial, antifungal, antimalarial, antiviral), anti-inflammatory, antidiabetic, cytotoxic, and neuroprotective activities. In brief, marine organisms are plentiful in naturally occurring macrolides, which can become the source of efficient and effective therapeutics for many diseases. This current review summarizes these exciting and promising novel marine macrolides in biological activities and possible therapeutic applications.
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Affiliation(s)
- Rajib Das
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh.
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Swabi, 94640, Pakistan.
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh.
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, 4381, Bangladesh; Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, 1207, Bangladesh.
| | - Md Jamal Hossain
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road, Dhanmondi, Dhaka, 1205, Bangladesh.
| | - Zidan Khan
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, 4318, Bangladesh.
| | - Saima Naz
- Department of Biotechnology, Bacha Khan University, Charsadda, KPK, Pakistan.
| | - Bashir Ahmad
- Department of Biotechnology, Bacha Khan University, Charsadda, KPK, Pakistan.
| | - Arun Meyyazhagan
- Department of Life Science, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560076, India.
| | - Karthika Pushparaj
- Department of Zoology, School of Biosciences, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641 043, Tamil Nadu, India.
| | - Chunpeng Craig Wan
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruit &Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruit & Vegetables, College of Agronomy, Jiangxi Agricultural University Nanchang, 330045, Jiangxi, China.
| | | | - Kannan Rr Rengasamy
- Centre for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 600077, India.
| | - Jesus Simal-Gandara
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E-32004 Ourense, Spain.
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Monteiro P, Lomartire S, Cotas J, Marques JC, Pereira L, Gonçalves AMM. Call the Eckols: Present and Future Potential Cancer Therapies. Mar Drugs 2022; 20:387. [PMID: 35736190 PMCID: PMC9230804 DOI: 10.3390/md20060387] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 02/07/2023] Open
Abstract
In recent years, an increased interest in marine macroalgae bioactive compounds has been recorded due to their benefits to human health and welfare. Several of their bioactivities have been demonstrated, such as anti-inflammatory, antioxidant, anticarcinogenic, antibacterial and antiviral behavior. However, there still lacks a clear definition regarding how these compounds exert their bioactive properties. Of all the bioactive compounds derived from marine macroalgae, attention has been focused on phenolic compounds, specifically in phlorotannins, due to their potential for biomedical applications. Phlorotannins are a diverse and wide group of phenolic compounds, with several structural variations based on the monomer phloroglucinol. Among the diverse phlorotannin structures, the eckol-family of phlorotannins demonstrates remarkable bioactivity, notably their anti-tumoral properties. However, the molecular mechanisms by which this activity is achieved remain elusive and sparse. This review focuses on the described molecular mechanisms of anti-tumoral effects by the eckol family of compounds and the future prospects of these molecules for potential application in oncology therapies.
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Affiliation(s)
- Pedro Monteiro
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - Silvia Lomartire
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - João Cotas
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - João C. Marques
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - Leonel Pereira
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - Ana M. M. Gonçalves
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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6
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Mahanthappa M, Manju V, Gopi AM, Arumugam P. Simple, Sensitive, and Rapid Voltammetric Detection of Alloxan on Glassy Carbon Electrodes. ACS OMEGA 2022; 7:5998-6006. [PMID: 35224361 PMCID: PMC8867568 DOI: 10.1021/acsomega.1c06313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/01/2022] [Indexed: 05/22/2023]
Abstract
Alloxan is a chemical generally administered to rats to induce diabetes mellitus, and pharmaceutical industries test the efficacy of their diabetic products on these rats. Alloxan is in a redox cycle with dialuric acid; hence, direct estimation of alloxan may not represent the actual concentration of the same in a given matrix. Also, in recent times, alloxan is added to food materials, especially to the all-purpose flour (maida) to bring softness and white color to the flour. Hence, consumption of food items made from such flour could induce diabetic mellitus in individuals, making it imperative to develop an accurate estimation of alloxan in food items. Herein, a voltammetric-based technique is developed to quantify the alloxan in refined wheat flour (maida) using an unmodified glassy carbon electrode (GCE). The electrochemical method offers rapid sensing while the use of an unmodified GCE surface offers repeatability and reproducibility between measurements. First, alloxan is converted to its stable adduct alloxazine by the reaction with o-phenylenediamine. The alloxazine adduct is electrochemically active, and the concentration of alloxan is estimated as a function of alloxazine formed using the voltammetric technique. The common shortfall in alloxan detection mainly involves its short half-life (∼a minute) whereas the alloxazine adduct formed is stable over a period of time. Using the current approach, alloxan concentration ranging from 10 to 600 μM is detected with a sensitivity of 0.0116 μA/μM. A low limit of detection of 1.95 μM with a precision of 1.2% is achieved using the above method. Real sample analysis revealed the presence of alloxan in all-purpose flour (maida-refined wheat flour) and bread purchased from the local market to the values of 35.76 and 25.03 μM, respectively. The same is confirmed using the gold-standard colorimetric technique.
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Affiliation(s)
- Mallappa Mahanthappa
- Electrodics
and Electrocatalysis Division, CSIR-Central
Electrochemical Research Institute (CSIR-CECRI), Karaikudi 630003, India
| | - Venkatesan Manju
- Electrodics
and Electrocatalysis Division, CSIR-Central
Electrochemical Research Institute (CSIR-CECRI), Karaikudi 630003, India
| | - Anugraha Madamangalam Gopi
- PG &
Research, Department of Chemistry, Sree
Vyasa NSS College, Wadakkanchery, Thrissur, Kerala 680582, India
| | - Palaniappan Arumugam
- Electrodics
and Electrocatalysis Division, CSIR-Central
Electrochemical Research Institute (CSIR-CECRI), Karaikudi 630003, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India
- ,
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Fernando IPS, Lee W, Ahn G. Marine algal flavonoids and phlorotannins; an intriguing frontier of biofunctional secondary metabolites. Crit Rev Biotechnol 2022; 42:23-45. [PMID: 34016003 DOI: 10.1080/07388551.2021.1922351] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/14/2020] [Accepted: 02/17/2021] [Indexed: 10/21/2022]
Abstract
Algae are the oldest representatives of the plant world with reserves exceeding hundreds of millions of tons in the world's oceans. Currently, a growing interest is placed toward the use of algae as feedstocks for obtaining numerous natural products. Algae are a rich source of polyphenols that possess intriguing structural diversity. Among the algal polyphenols, phlorotannins, which are unique to brown seaweeds, and have immense value as potent modulators of biochemical processes linked to chronic diseases. In algae, flavonoids remain under-explored compared to other categories of polyphenols. Both phlorotannins and flavonoids are inclusive of compounds indicating a wide structural diversity. The present paper reviews the literature on the ecological significance, biosynthesis, structural diversity, and bioactivity of seaweed phlorotannins and flavonoids. The potential implementation of these chemical entities in functional foods, cosmeceuticals, medicaments, and as templates in drug design are described in detail, and perspectives are provided to tackle what are perceived to be the most momentous challenges related to the utilization of phlorotannins and flavonoids. Moving beyond: industrial biotechnology applications, metabolic engineering, total synthesis, biomimetic synthesis, and chemical derivatization of phlorotannins and flavonoids could broaden the research perspectives contributing to the health and economic up-gradation.
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Affiliation(s)
| | - WonWoo Lee
- Honam National Institute of Biological Resources, 99, Gohadoan-gil, Mokpo-si, Jeollanam-do, Korea
| | - Ginnae Ahn
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, Republic of Korea
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, Republic of Korea
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Agarwal S, Singh V, Chauhan K. Antidiabetic potential of seaweed and their bioactive compounds: a review of developments in last decade. Crit Rev Food Sci Nutr 2022; 63:5739-5770. [PMID: 35048763 DOI: 10.1080/10408398.2021.2024130] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Diabetes Mellitus is a public health problem worldwide due to high morbidity and mortality rate associated with it. Diabetes can be managed by synthetic hypoglycemic drugs, although their persistent uses have several side effects. Hence, there is a paradigm shift toward the use of natural products having antidiabetic potential. Seaweeds, large marine benthic algae, are an affluent source of various bioactive compounds, including phytochemicals and antioxidants thus exhibiting various health promoting properties. Seaweed extracts and its bioactive compounds have antidiabetic potential as they inhibit carbohydrate hydrolyzing enzymes in vitro and exhibit blood glucose lowering effect in random and post prandial blood glucose tests in vivo. In addition, they have been associated with reduced weight gain in animals probably by decreasing mRNA expression of pro-inflammatory cytokines with concomitant increase in mRNA expression levels of anti-inflammatory cytokines. Their beneficial effect has been seen in serum and hepatic lipid profile and antioxidant enzymes indicating the protective role of seaweeds against free radicals mediated oxidative stress induced hyperglycemia and associated hyperlipidemia. However, the detailed and in-depth studies of seaweeds as whole, their bioactive isolates and their extracts need to be explored further for their health benefits and wide application in food, nutraceutical and pharmaceutical industries.
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Affiliation(s)
- Surbhi Agarwal
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management, Sonipet, India
| | - Vikas Singh
- Department of Food Business Management and Entrepreneurship Development, National Institute of Food Technology Entrepreneurship and Management, Kundli, India
| | - Komal Chauhan
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management, Sonipet, India
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Simultaneous Tests of Theaflavin-3,3'-digallate as an Anti-Diabetic Drug in Human Hepatoma G2 Cells and Zebrafish ( Danio rerio). Nutrients 2021; 13:nu13124379. [PMID: 34959930 PMCID: PMC8704303 DOI: 10.3390/nu13124379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/03/2021] [Accepted: 12/04/2021] [Indexed: 01/17/2023] Open
Abstract
Theaflavin-3,3′-digallate (TF3) is the most important theaflavin monomer in black tea. TF3 was proved to reduce blood glucose level in mice and rats. However, the elaborate anti-diabetic mechanism was not well elucidated. In this work, human hepatoma G2 (HepG2) cells and zebrafish (Danio rerio) were used simultaneously to reveal anti-diabetic effect of TF3. The results showed that TF3 could effectively rise glucose absorption capacity in insulin-resistant HepG2 cells and regulate glucose level in diabetic zebrafish. The hypoglycemic effect was mediated through down-regulating phosphoenolpyruvate carboxykinase and up-regulating glucokinase. More importantly, TF3 could significantly improve β cells regeneration in diabetic zebrafish at low concentrations (5 μg/mL and 10 μg/mL), which meant TF3 had a strong anti-diabetic effect. Obviously, this work provided the potential benefit of TF3 on hypoglycemic effect, regulating glucose metabolism enzymes, and protecting β cells. TF3 might be a promising agent for combating diabetes.
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10
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Rajan DK, Mohan K, Zhang S, Ganesan AR. Dieckol: a brown algal phlorotannin with biological potential. Biomed Pharmacother 2021; 142:111988. [PMID: 34371307 DOI: 10.1016/j.biopha.2021.111988] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/24/2021] [Accepted: 07/30/2021] [Indexed: 12/21/2022] Open
Abstract
Dieckol [C36H22O18], is a naturally occurring phlorotannin found in some brown algal species. Dieckol is gaining more attention in the scientific community for its potential biological activities. It has been exhibited a broad spectrum of therapeutic functions including anti-bacterial, anti-cancer, anti-oxidant, anti-aging, anti-diabetic, neuroprotective, and other medicinal applications. Distinct emphasis has been given to extraction, purification, and biomedical applications of dieckol. This critical review comprises of in vitro, in vivo, and in silico biological properties of dieckol. An attempt has been made to evaluate the effectiveness, therapeutical application, and mechanism of dieckol against various diseases. The pharmacological significance, current status and the dosage of multifunctional dieckol and its mechanisms have been discussed in this review. Dieckol plays an important role in apoptosis induction via inhibiting the PI3K, AKT, mTOR and FAK signaling molecules. Dieckol remarkably inhibited the lipid accumulation in high fat diet induced animal models. Dieckol, a multifaceted compound will be beneficial in attenuating the action of various diseases and it could be a potential pharmaceutical and nutraceutical compound. Therefore, the combined effects of dieckol with existing drugs and natural compounds will be studied in future to optimize its benefits. Besides limited information on the toxicological action and dosage administration of dieckol on the human was reported to date. Overall, dieckol is a prospective health-promoting compound for the development of a novel drug against numerous diseases.
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Affiliation(s)
- Durairaj Karthick Rajan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608502, Tamil Nadu, India.
| | - Kannan Mohan
- PG and Research Department of Zoology, Sri Vasavi College, Erode 638316, Tamil Nadu, India.
| | - Shubing Zhang
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, Hunan 410013, PR China
| | - Abirami Ramu Ganesan
- Group of Fermentation and Distillation, Laimburg Research Center, Laimburg 6, I-39040 Post Auer, BZ, Italy
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Paudel P, Seong SH, Park SE, Ryu JH, Jung HA, Choi JS. In Vitro and In Silico Characterization of G-Protein Coupled Receptor (GPCR) Targets of Phlorofucofuroeckol-A and Dieckol. Mar Drugs 2021; 19:326. [PMID: 34199834 PMCID: PMC8228075 DOI: 10.3390/md19060326] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/25/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Phlorotannins are polyphenolic compounds in marine alga, especially the brown algae. Among numerous phlorotannins, dieckol and phlorofucofuroeckol-A (PFF-A) are the major ones and despite a wider biological activity profile, knowledge of the G protein-coupled receptor (GPCR) targets of these phlorotannins is lacking. This study explores prime GPCR targets of the two phlorotannins. In silico proteocheminformatics modeling predicted twenty major protein targets and in vitro functional assays showed a good agonist effect at the α2C adrenergic receptor (α2CAR) and an antagonist effect at the adenosine 2A receptor (A2AR), δ-opioid receptor (δ-OPR), glucagon-like peptide-1 receptor (GLP-1R), and 5-hydroxytryptamine 1A receptor (5-TH1AR) of both phlorotannins. Besides, dieckol showed an antagonist effect at the vasopressin 1A receptor (V1AR) and PFF-A showed a promising agonist effect at the cannabinoid 1 receptor and an antagonist effect at V1AR. In silico molecular docking simulation enabled us to investigate and identify distinct binding features of these phlorotannins to the target proteins. The docking results suggested that dieckol and PFF-A bind to the crystal structures of the proteins with good affinity involving key interacting amino acid residues comparable to reference ligands. Overall, the present study suggests α2CAR, A2AR, δ-OPR, GLP-1R, 5-TH1AR, CB1R, and V1AR as prime receptor targets of dieckol and PFF-A.
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Affiliation(s)
- Pradeep Paudel
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS 38677, USA
| | - Su Hui Seong
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
- Natural Products Research Division, Honam National Institute of Biological Resource, Mokpo 58762, Korea
| | - Se Eun Park
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, Seoul 05505, Korea
| | - Jong Hoon Ryu
- Department of Life and Nanopharmaceutical Science, Kyung Hee University, Seoul 02447, Korea;
| | - Hyun Ah Jung
- Department of Food Science and Human Nutrition, Jeonbuk National University, Jeonju 54896, Korea
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
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12
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Kim YJ, Jeon SY, Choi JS, Kim NH, Goto Y, Lee YA. Alterations of amygdala-prefrontal cortical coupling and attention deficit/hyperactivity disorder-like behaviors induced by neonatal habenula lesion: normalization by Ecklonia stolonifera extract and its active compound fucosterol. Behav Pharmacol 2021; 32:308-320. [PMID: 33491993 DOI: 10.1097/fbp.0000000000000620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Alterations of monoamine transmission in mesocorticolimbic regions have been suggested in the pathophysiology of attention deficit/hyperactivity disorder (ADHD). The habenula is an important brain area in regulation of monoamine transmission. In this study, we investigated behavioral and electrophysiological alterations induced by neonatal habenula lesion (NHL) in rats. In NHL rats, age-dependent behavioral alterations relevant to the ADHD symptoms, such as hyperlocomotion, impulsivity, and attention deficit, were observed. Local field potentials (LFPs) in mesocorticolimbic regions of anesthetized rats were examined with in vivo electrophysiological recordings. Abnormally enhanced synchronization of slow (delta) and fast (gamma) LFP oscillations between the amygdala (AMY) and prefrontal cortex (PFC) was found in juvenile, but not in adult, NHL rats. We further examined the effects of an extract and the active compound from the perennial large brown algae Ecklonia stolonifera (ES), which have previously been demonstrated to modulate monoamine transmission, on these NHL-induced alterations. One week of ES extract treatments normalized the NHL-induced behavioral alterations, whereas the active compound fucosterol improved attention deficit and impulsivity, but not hyperlocomotion, in NHL rats. Consistent with the behavioral effects, ES extract treatments also normalized augmented AMY-PFC coupling. These results suggest that altered limbic-cortical information processing may be involved in ADHD-like behavioral alterations induced by NHL, which could be ameliorated by the natural substance, such as ES that affects monoamine transmission.
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Affiliation(s)
- Ye-Jin Kim
- Department of Food Science and Nutrition, Daegu Catholic University, Gyeongsan, Gyeongbuk
| | - So-Yeon Jeon
- Department of Food Science and Nutrition, Daegu Catholic University, Gyeongsan, Gyeongbuk
| | - Jae-Sue Choi
- Department of Food Science and Nutrition, Pukyong National University, Busan, South Korea
| | - Na-Hyun Kim
- Department of Food Science and Nutrition, Daegu Catholic University, Gyeongsan, Gyeongbuk
| | - Yukiori Goto
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
| | - Young-A Lee
- Department of Food Science and Nutrition, Daegu Catholic University, Gyeongsan, Gyeongbuk
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13
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Ecklonia cava Extract and Its Derivative Dieckol Promote Vasodilation by Modulating Calcium Signaling and PI3K/AKT/eNOS Pathway in In Vitro and In Vivo Models. Biomedicines 2021; 9:biomedicines9040438. [PMID: 33921856 PMCID: PMC8073412 DOI: 10.3390/biomedicines9040438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 12/22/2022] Open
Abstract
Nitric oxide (NO), an endothelial-derived relaxing factor synthesized by endothelial nitric oxide synthase (eNOS) in endothelial cells, enhances vasodilation by modulating vascular tone. The calcium concentration critically influences eNOS activation in endothelial cells. Thus, modulation of calcium-dependent signaling pathways may be a potential therapeutic strategy to enhance vasodilation. Marine algae reportedly possess protective effects against cardiovascular disorders, including hypertension and vascular dysfunction; however, the underlying molecular signaling pathways remain elusive. In the present study, we extracted and isolated dieckol from Ecklonia cava and investigated calcium transit-enhanced vasodilation. Calcium modulation via the well-known M3 muscarinic acetylcholine receptor (AchM3R), which is linked to NO formation, was investigated and the vasodilatory effect of dieckol was verified. Our results indicated that dieckol effectively promoted NO generation via the PI3K/Akt/eNOS axis and calcium transients influenced by AchM3R. We also treated Tg(flk: EGFP) transgenic zebrafish with dieckol to assess its vasodilatory effect. Dieckol promoted vasodilation by enlarging the dorsal aorta diameter, thus regulating blood flow velocity. In conclusion, our findings suggest that dieckol modulates calcium transit through AchM3R, increases endothelial-dependent NO production, and efficiently enhances vasodilation. Thus, E. cava and its derivative, dieckol, can be considered as potential natural vasodilators.
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14
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Yang HW, Jiang YF, Lee HG, Jeon YJ, Ryu B. Ca 2+-Dependent Glucose Transport in Skeletal Muscle by Diphlorethohydroxycarmalol, an Alga Phlorotannin: In Vitro and In Vivo Study. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8893679. [PMID: 33628395 PMCID: PMC7889350 DOI: 10.1155/2021/8893679] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/21/2020] [Accepted: 01/13/2021] [Indexed: 12/31/2022]
Abstract
Diphlorethohydroxycarmalol (DPHC), a type of phlorotannin isolated from the marine alga Ishige okamurae, reportedly alleviates impaired glucose tolerance. However, the molecular mechanisms of DPHC regulatory activity and by which it exerts potential beneficial effects on glucose transport into skeletal myotubes to control glucose homeostasis remain largely unexplored. The aim of this study was to evaluate the effect of DPHC on cytosolic Ca2+ levels and its correlation with blood glucose transport in skeletal myotubes in vitro and in vivo. Cytosolic Ca2+ levels upon DPHC treatment were evaluated in skeletal myotubes and zebrafish larvae by Ca2+ imaging using Fluo-4. We investigated the effect of DPHC on the blood glucose level and glucose transport pathway in a hyperglycemic zebrafish. DPHC was shown to control blood glucose levels by accelerating glucose transport; this effect was associated with elevated cytosolic Ca2+ levels in skeletal myotubes. Moreover, the increased cytosolic Ca2+ level caused by DPHC can facilitate the Glut4/AMPK pathways of the skeletal muscle in activating glucose metabolism, thereby regulating muscle contraction through the regulation of expression of troponin I/C, CaMKII, and ATP. Our findings provide insights into the mechanism of DPHC activity in skeletal myotubes, suggesting that increased cytosolic Ca2+ levels caused by DPHC can promote glucose transport into skeletal myotubes to modulate blood glucose levels, thus indicating the potential use of DPHC in the prevention of diabetes.
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Affiliation(s)
- Hye-Won Yang
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Yun-Fei Jiang
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Hyo-Geun Lee
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
- Marine Science Institute, Jeju National University, Jeju 63333, Republic of Korea
| | - BoMi Ryu
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
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15
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Kim EA, Lee JH, Heo SJ, Jeon YJ. Saringosterol acetate isolated from Hizikia fusiforme, an edible brown alga, suppressed hepatocellular carcinoma growth and metastasis in a zebrafish xenograft model. Chem Biol Interact 2021; 335:109362. [PMID: 33358999 DOI: 10.1016/j.cbi.2020.109362] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/09/2020] [Accepted: 12/17/2020] [Indexed: 12/16/2022]
Abstract
Saringosterol acetate (SSA) was isolated from an edible brown alga Hizikia fusiforme. In this study, we developed an adult zebrafish human hepatocellular carcinoma (HCC) xenograft model to confirm that SSA inhibits tumor growth and metastasis. Established Hep3B cells labeled with the fluorescent tracker CM-Dil were xenografted into the abdominal cavity of zebrafish once every three days for one month. Compared with the control group, the fish injected with Hep3B showed a significant increase in α-fetoprotein (AFP) and factors related to tumor growth and metastasis (IL-6, TNF-α, TGFβ, MMP2, and MMP9). Using the model, it was proven that SSA affected survival rate, AFP production, and the levels of factors related to tumor growth and metastasis via the PI3K/AKT/mTOR and TGFβ/Smad pathways. In conclusion, this HCC model can be used for in vivo experiments to investigate the inhibition of cancer, and SSA may be useful for the treatment of cancer.
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Affiliation(s)
- Eun-A Kim
- Jeju Marine Research Center, Korea Institute of Ocean Science & Technology (KIOST), Jeju, 63349, Republic of Korea
| | - Ji-Hyeok Lee
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21936, Republic of Korea
| | - Soo-Jin Heo
- Jeju Marine Research Center, Korea Institute of Ocean Science & Technology (KIOST), Jeju, 63349, Republic of Korea; Jeju Department of Marine Biology, Korea University of Science and Technology, Deajeon, 34113, Republic of Korea.
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju, 63243, Republic of Korea.
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16
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Shrestha S, Zhang W, Smid S. Phlorotannins: A review on biosynthesis, chemistry and bioactivity. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2020.100832] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Mayer AMS, Guerrero AJ, Rodríguez AD, Taglialatela-Scafati O, Nakamura F, Fusetani N. Marine Pharmacology in 2016-2017: Marine Compounds with Antibacterial, Antidiabetic, Antifungal, Anti-Inflammatory, Antiprotozoal, Antituberculosis and Antiviral Activities; Affecting the Immune and Nervous Systems, and Other Miscellaneous Mechanisms of Action. Mar Drugs 2021; 19:49. [PMID: 33494402 PMCID: PMC7910995 DOI: 10.3390/md19020049] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 12/12/2022] Open
Abstract
The review of the 2016-2017 marine pharmacology literature was prepared in a manner similar as the 10 prior reviews of this series. Preclinical marine pharmacology research during 2016-2017 assessed 313 marine compounds with novel pharmacology reported by a growing number of investigators from 54 countries. The peer-reviewed literature reported antibacterial, antifungal, antiprotozoal, antituberculosis, and antiviral activities for 123 marine natural products, 111 marine compounds with antidiabetic and anti-inflammatory activities as well as affecting the immune and nervous system, while in contrast 79 marine compounds displayed miscellaneous mechanisms of action which upon further investigation may contribute to several pharmacological classes. Therefore, in 2016-2017, the preclinical marine natural product pharmacology pipeline generated both novel pharmacology as well as potentially new lead compounds for the growing clinical marine pharmaceutical pipeline, and thus sustained with its contributions the global research for novel and effective therapeutic strategies for multiple disease categories.
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Affiliation(s)
- Alejandro M. S. Mayer
- Department of Pharmacology, College of Graduate Studies, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA;
| | - Aimee J. Guerrero
- Department of Pharmacology, College of Graduate Studies, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA;
| | - Abimael D. Rodríguez
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce de León Avenue, San Juan, PR 00926, USA;
| | | | - Fumiaki Nakamura
- Department of Chemistry and Biochemistry, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
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Kim Y, Shin J, Kang SM, Song J, Shin HC, Keum YS, Hwang HJ, Park K. Highly Regioselective Preparation and Characterization of New 6-O-Substituted Dieckol Derivatives. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Kim SY, Ahn G, Kim HS, Je JG, Kim KN, Jeon YJ. Diphlorethohydroxycarmalol (DPHC) Isolated from the Brown Alga Ishige okamurae Acts on Inflammatory Myopathy as an Inhibitory Agent of TNF-α. Mar Drugs 2020; 18:E529. [PMID: 33114618 PMCID: PMC7692396 DOI: 10.3390/md18110529] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/22/2020] [Accepted: 10/22/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammation affects various organs of the human body, including skeletal muscle. Phlorotannins are natural biologically active substances found in marine brown algae and exhibit anti-inflammatory activities. In this study, we focused on the effects of phlorotannins on anti-inflammatory activity and skeletal muscle cell proliferation activity to identify the protective effects on the inflammatory myopathy. First, the five species of marine brown algal extracts dramatically inhibited nitric oxide (NO) production in lipopolysaccharide (LPS)-induced RAW 264.7 cells without toxicity at all the concentrations tested. Moreover, the extracts collected from Ishige okamurae (I. okamurae) significantly increased cell proliferation of C2C12 myoblasts compared to the non-treated cells with non-toxicity. In addition, as a result of finding a potential tumor necrosis factor (TNF)-α inhibitor that regulates the signaling pathway of muscle degradation in I. okamurae-derived natural bioactive compounds, Diphlorethohydroxycarmalol (DPHC) is favorably docked to the TNF-α with the lowest binding energy and docking interaction energy value. Moreover, DPHC down-regulated the mRNA expression level of pro-inflammatory cytokines and suppressed the muscle RING-finger protein (MuRF)-1 and Muscle Atrophy F-box (MAFbx)/Atrgoin-1, which are the key protein muscle atrophy via nuclear factor-κB (NF-κB), and mitogen-activated protein kinase (MAPKs) signaling pathways in TNF-α-stimulated C2C12 myotubes. Therefore, it is expected that DPHC isolated from IO would be developed as a TNF-α inhibitor against inflammatory myopathy.
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Affiliation(s)
- Seo-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea; (S.-Y.K.); (H.-S.K.); (J.-G.J.)
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea;
| | - Ginnae Ahn
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu 59626, Korea;
| | - Hyun-Soo Kim
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea; (S.-Y.K.); (H.-S.K.); (J.-G.J.)
- Department of Applied Research, National Marine Biodiversity Institute of Korea, 75, Jangsan-ro 101-gil, Janghang-eup, Seocheon 33662, Korea
| | - Jun-Geon Je
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea; (S.-Y.K.); (H.-S.K.); (J.-G.J.)
| | - Kil-Nam Kim
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea;
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea; (S.-Y.K.); (H.-S.K.); (J.-G.J.)
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20
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Fernando IPS, Ryu B, Ahn G, Yeo IK, Jeon YJ. Therapeutic potential of algal natural products against metabolic syndrome: A review of recent developments. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.01.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Bermano G, Stoyanova T, Hennequart F, Wainwright CL. Seaweed-derived bioactives as potential energy regulators in obesity and type 2 diabetes. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2019; 87:205-256. [PMID: 32089234 DOI: 10.1016/bs.apha.2019.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
There is epidemiological evidence that dietary intake of seaweeds is associated with a lower prevalence of chronic diseases. While seaweeds are of high nutritious value, due to their high content of fiber, polyunsaturated fatty acids and minerals, they also contain an abundance of bioactive compounds. There is a growing body of scientific data that these bioactive moieties exert effects that could correct the metabolic dysregulation that is present in obesity and Type 2 diabetes (T2D). In this review we describe how the molecular mechanisms, specific to different tissues, that underly obesity and T2D are influenced by both seaweed extracts and seaweed-derived bioactive molecules. In obesity, modulation of antioxidant capacity and reduction of intracellular ROS levels within tissues, and regulation of signaling pathways involved in enhancing browning of white adipose tissue, have been highlighted as key mechanism and identified as a potential target for optimal energy metabolism. In T2D, management of post-prandial blood glucose by modulating α-glucosidase or α-amylase activities, modulation of the AMPK signaling pathway, and similarly to obesity, reduction of ROS and NO production with subsequent increased expression of antioxidant enzymes have been shown to play a key role in glucose metabolism and insulin signaling. Future studies aimed at discovering new therapeutic drugs from marine natural products should, therefore, focus on bioactive compounds from seaweed that exert antioxidant activity and regulate the expression of key signaling pathways involved in glucose homeostasis, mechanisms that are common to both obesity and T2D management. In addition, more data is required to provide evidence of clinical benefit.
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Affiliation(s)
- Giovanna Bermano
- Centre for Natural Products in Health, School of Pharmacy & Life Sciences, Robert Gordon University, Aberdeen, United Kingdom
| | - Teodora Stoyanova
- Centre for Natural Products in Health, School of Pharmacy & Life Sciences, Robert Gordon University, Aberdeen, United Kingdom
| | | | - Cherry L Wainwright
- Centre for Natural Products in Health, School of Pharmacy & Life Sciences, Robert Gordon University, Aberdeen, United Kingdom.
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22
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Zhao L, Zheng Q, Zou Y, Wang Y, Wu Y, Liu X. Chitooligosaccharide Biguanidine Alleviates Liver Injury and Insulin Resistance in Type 2 Diabetic Rats. STARCH-STARKE 2019. [DOI: 10.1002/star.201900203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Liyan Zhao
- School of Material Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
| | - Qifang Zheng
- School of Material Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
| | - Yalu Zou
- School of Material Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
| | - Yuanyuan Wang
- School of Material Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
| | - Yuntang Wu
- Department of Nutrition and Food ScienceSchool of Public HealthTianjin Medical University Tianjin 300070 China
| | - Xiaofei Liu
- School of Material Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
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23
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Belhadj S, Hentati O, Hammami M, Ben Hadj A, Boudawara T, Dammak M, Zouari S, El Feki A. Metabolic impairments and tissue disorders in alloxan-induced diabetic rats are alleviated by Salvia officinalis L. essential oil. Biomed Pharmacother 2018; 108:985-995. [PMID: 30372910 DOI: 10.1016/j.biopha.2018.09.108] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 08/14/2018] [Accepted: 09/19/2018] [Indexed: 10/28/2022] Open
Abstract
The current research explored for the first time the effect of Salvia officinalis L. (Sage) essential oil (EO) on Alloxan-induced diabetes in male Wistar rats. Sage EO was extracted by a Clevenger apparatus and analyzed by GC-FID and GC-MS. The most important chemical families identified in this oil were oxygenated monoterpenes (56.32%), hydrocarbon monoterpenes (15.00%) and hydrocarbon sesquiterpenes (14.70%). All treatments were administered orally. In vitro investigation showed that the EO had α-amylase and lipase inhibitory activities with IC50 = 38 μg/mL and IC50 = 52 μg/mL, respectively. In vivo experiments highlighted that the activities of serum α-amylase and lipase were reduced by 46.6% and 32.1%, respectively. Sage EO reduced glycemia by 60% and the level of glycogen stored in the liver by 43.7%. Treatments of diabetes with Sage EO significantly protected the liver function by lowering serum AST (35%), ALT (79%) and LDH (43%) activities. Furthermore, Sage EO was efficient to preserve the kidney function in diabetes by reverting back serum creatinine (47%) and UA (62.5%) concentrations to control values. The obtained results altogether evidenced that Sage EO had hypoglycemic and anti-obesity effects and could be a valuable complement in future diabetes therapy.
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Affiliation(s)
- Sahla Belhadj
- UMR DIATHEC, EA 7294, Fédération de Médecine Translationnelle de Strasbourg (FMTS), University of Strasbourg, Boulevard René Leriche, 67200, Strasbourg, France
| | - Olfa Hentati
- Higher Institute of Biotechnology of Sfax (ISBS), University of Sfax, Road of Soukra Km 4, Po Box 1175, 3038, Sfax, Tunisia.
| | - Majdi Hammami
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria Technopole, University of Tunis, Hammam-Lif, Po Box. 901, 2050, Tunis, Tunisia
| | - Aida Ben Hadj
- Department of Pathology, Habib Bourguiba Hospital, 3029, Sfax, Tunisia
| | - Tahia Boudawara
- Department of Pathology, Habib Bourguiba Hospital, 3029, Sfax, Tunisia
| | | | - Sami Zouari
- Laboratory of Medicinal and Environmental Chemistry, Higher Institute of Biotechnology of Sfax (ISBS), University of Sfax, Road of Soukra Km 4, Po Box 1175, 3038, Sfax, Tunisia
| | - AbdelFattah El Feki
- Laboratory of Animal Ecophysiology, Faculty of Sciences of Sfax, University of Sfax, Po Box 95, 3038, Sfax, Tunisia
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Gómez-Guzmán M, Rodríguez-Nogales A, Algieri F, Gálvez J. Potential Role of Seaweed Polyphenols in Cardiovascular-Associated Disorders. Mar Drugs 2018; 16:E250. [PMID: 30060542 PMCID: PMC6117645 DOI: 10.3390/md16080250] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/22/2018] [Accepted: 07/26/2018] [Indexed: 01/09/2023] Open
Abstract
The beneficial effects of various polyphenols with plant origins on different cardiovascular-associated disorders, such as hypertension, diabetes mellitus type 2 and metabolic syndrome are well known. Recently, marine crude-drugs are emerging as potential treatments in many noncommunicable conditions, including those involving the cardiovascular system. Among the active compounds responsible for these activities, seaweed polyphenols seem to play a key role. The aim of the present review is to summarise the current knowledge about the beneficial effects reported for edible seaweed polyphenols in the amelioration of these prevalent conditions, focusing on both preclinical and clinical studies. This review will help to establish the basis for future studies in this promising field.
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Affiliation(s)
- Manuel Gómez-Guzmán
- Department of Pharmacology, School of Pharmacy, University of Granada, 18071 Granada, Spain.
- Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), 18071 Granada, Spain.
| | - Alba Rodríguez-Nogales
- Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), 18071 Granada, Spain.
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain.
| | - Francesca Algieri
- Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), 18071 Granada, Spain.
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain.
| | - Julio Gálvez
- Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), 18071 Granada, Spain.
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain.
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25
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Anti-inflammatory effect of Apo-9'-fucoxanthinone via inhibition of MAPKs and NF-kB signaling pathway in LPS-stimulated RAW 264.7 macrophages and zebrafish model. Int Immunopharmacol 2018; 59:339-346. [PMID: 29679858 DOI: 10.1016/j.intimp.2018.03.034] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/17/2018] [Accepted: 03/29/2018] [Indexed: 12/27/2022]
Abstract
In this study, we confirmed the anti-inflammatory effect of Apo-9-fucoxanthinone (AF) in in vitro RAW 264.7 cells and in vivo zebrafish model. In lipopolysaccharide (LPS)-stimulated zebrafish, AF significantly decreased the production of reactive oxygen species (ROS), nitric oxide (NO) and cell death. In addition, the mRNA expression of inducible nitric oxide synthase (iNOS), suppressed cyclooxygenase-2 (COX-2) and an inflammatory cytokines; IL-1β, TNF-α were shown reduction. And AF significantly inhibited NO production and expression of iNOS in LPS-stimulated RAW 264.7 cells. Further, AF suppressed COX-2, prostaglandin E2 (PGE2), and pro-inflammatory cytokines such as interleukin-6 (IL-6), IL-1β, and tumor necrosis factor-α (TNF-α) at 25, 50 and 100 μg/mL, respectively. Further mechanistic studies showed that AF suppressed the nuclear factor-kB (NF-kB) pathway and phosphorylation of mitogen-activated protein kinase (MAPK) pathway molecules such as extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK). According to the results, AF can be used and applied as a useful anti-inflammatory agent of nutraceutical or pharmaceutical.
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Kang SY, Kim E, Kang I, Lee M, Lee Y. Anti-Diabetic Effects and Anti-Inflammatory Effects of Laminaria japonica and Hizikia fusiforme in Skeletal Muscle: In Vitro and In Vivo Model. Nutrients 2018; 10:E491. [PMID: 29659527 PMCID: PMC5946276 DOI: 10.3390/nu10040491] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/13/2018] [Accepted: 04/13/2018] [Indexed: 12/30/2022] Open
Abstract
Laminaria japonica (LJ) and Hizikia fusiforme (HF) are brown seaweeds known to have various health-promoting effects. In this study, we investigated the anti-diabetic effects and possible mechanism(s) of LJ and HF by using both in vitro and in vivo models. C2C12 myotubes, mouse-derived skeletal muscle cells, treated with LF or HF extracts were used for the in vitro model, and muscle tissues from C57BL/6N mice fed a high-fat diet supplemented with 5% LF or HF for 16 weeks were used for the in vivo model. Although both the LF and HF extracts significantly inhibited α-glucosidase activity in a dose-dependent manner, the HF extract had a superior α-glucosidase inhibition than the LF extract. In addition, glucose uptake was significantly increased by LJ- and HF-treated groups when compared to the control group. Phosphorylation of protein kinase B and AMP-activated protein kinase was induced by LJ and HF in both the vivo and in vitro skeletal muscle models. Furthermore, LJ and HF significantly decreased tumor necrosis factor-α whereas both extracts increased interleukin (IL)-6 and IL-10 production in lipopolysaccharide-stimulated C2C12 myotubes. Taken together, these findings imply that the brown seaweeds LJ and HF could be useful therapeutic agents to attenuate muscle insulin resistance due to diet-induced obesity and its associated inflammation.
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Affiliation(s)
- Sae-Ym Kang
- Dietetics Team, Cheju Halla General Hospital, Jeju 63127, Korea.
| | - Eunyoung Kim
- Department of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.
| | - Inhae Kang
- Department of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.
| | - Myoungsook Lee
- Department of Food and Nutrition, Research Institute of Obesity Sciences, Sungshin Women's University, Seoul 01133, Korea.
| | - Yunkyoung Lee
- Department of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.
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27
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Abstract
Covering: 2016. Previous review: Nat. Prod. Rep., 2017, 34, 235-294This review covers the literature published in 2016 for marine natural products (MNPs), with 757 citations (643 for the period January to December 2016) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1277 in 432 papers for 2016), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
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28
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Fernando IPS, Sanjeewa KKA, Kim SY, Lee JS, Jeon YJ. Reduction of heavy metal (Pb 2+) biosorption in zebrafish model using alginic acid purified from Ecklonia cava and two of its synthetic derivatives. Int J Biol Macromol 2018; 106:330-337. [PMID: 28827136 DOI: 10.1016/j.ijbiomac.2017.08.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 07/11/2017] [Accepted: 08/03/2017] [Indexed: 01/30/2023]
Abstract
Heavy metal contamination has become a major problem that causes severe environmental and health issues due to their biosorption, bioaccumulation, and toxicity. This study was designed to evaluate heavy metal chelating abilities of alginic acid (AA) extracted from the brown seaweed Ecklonia cava and two of its derivatives prepared by the partial oxidation of the 2° OH groups (OAA) and partial carboxylation of the monomeric units (CAA) upon reducing the heavy metal biosorption in zebrafish (Danio rerio) modal. Metal ions were quantified using ICP-OES and biopolymers were characterized by FTIR and XRD analysis. All investigated biopolymers indicated potential ability for chelating Pb2+, Cu2+, Cd2+, As3+, and Ag+. The sorption capacities were in the order of CAA>OAA>AA. All biopolymers indicated a comparatively higher chelation towards Pb2+. AA, OAA, and CAA could effectively reduce Pb2+ induced toxicity and Pb2+ stress-induced ROS production in zebrafish embryos. Besides, they could reduce the biosorption of Pb2+ in adult zebrafish which could lead to bioaccumulation. Since alginic acid purified from E. cava and its derivatives could be utilized as seaweed derived biopolymers to purify heavy metals contaminated water and as a dietary supplement to reduce heavy metal biosorption in organisms.
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Affiliation(s)
- I P Shanura Fernando
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - K K Asanka Sanjeewa
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - Seo-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - Jung-Suck Lee
- Research Center for Industrial Developement of Seafood, Gyeongsang National University, Republic of Korea.
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea.
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29
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Fernando IPS, Sanjeewa KKA, Kim HS, Kim SY, Lee SH, Lee WW, Jeon YJ. Identification of sterols from the soft coral Dendronephthya gigantea and their anti-inflammatory potential. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 55:37-43. [PMID: 28818741 DOI: 10.1016/j.etap.2017.08.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/26/2017] [Accepted: 08/06/2017] [Indexed: 06/07/2023]
Abstract
Exploration of anti-inflammatory phytochemicals has received tremendous attention worldwide owing to the rapid increase in inflammatory diseases. Current study reveals the identification of eight 3β-hydroxy-Δ5-steroidal congeners from a nonpolar column fraction of the ethanol solubles from the soft coral Dendronephthya gigantea collected from Jeju Island South Korea, using GC-MS/MS analysis. The sterol-rich fraction (DGEH21) showed a significant anti-inflammatory activity as exhibited by the inhibition of NO production (IC50 4.33±0.50μg/mL) and PGE2 production in LPS-stimulated RAW 264.7 macrophages. It also suppressed the expression levels of proinflammatory cytokines, TNF-α, IL-1β, and IL-6 in a dose-dependent manner. Furthermore, DGEH21 effectively downregulated the expression levels of iNOS, and COX-2 and reduced NO and ROS production as well as cell death in LPS-stimulated in-vivo zebrafish embryo model. However, DGEH21 at relatively high concentrations indicated cytotoxicity in both RAW cells and zebrafish embryos with RAW cell viability being nearly 80% after treatment with 25μg/mL DGEH21. This study highlights the synergistic anti-inflammatory activity of several steroids found in D. gigantea. Their actions may be useful in the development of anti-inflammatory cosmeceuticals, pharmaceutical agents, and other consumer products.
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Affiliation(s)
- I P Shanura Fernando
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - K K Asanka Sanjeewa
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - Hyun-Soo Kim
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - Seo-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - Seung-Hong Lee
- Division of Food Bioscience, Konkuk University, Chungju, Republic of Korea
| | - Won Woo Lee
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea.
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea.
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30
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Koirala P, Jung HA, Choi JS. Recent advances in pharmacological research on Ecklonia species: a review. Arch Pharm Res 2017; 40:981-1005. [PMID: 28840539 PMCID: PMC7090987 DOI: 10.1007/s12272-017-0948-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 08/16/2017] [Indexed: 12/18/2022]
Abstract
The genus Ecklonia (Lessoniaceae, Phaeophyceae), commonly called kelp (brown algae), is abundant on the coasts of Japan and Korea. During the past few decades, Ecklonia species have received tremendous attention for their wide range of therapeutic properties and multiple health benefits, such as great nutritional value and being rich in vitamins, minerals, dietary fiber, proteins, and polysaccharides. Several novel functional ingredients with diversified biological activities have been isolated and possess antimicrobial, antiviral, hepatoprotective, cardioprotective, anti-inflammatory, neuroprotective, anticarcinogenic, immunomodulatory, hypolipidemic, anti-diabetic, and antioxidant therapeutic properties. The present review discusses the phytochemical, pharmacological, therapeutic, nutritional, and health benefits of different species of genus Ecklonia, as well as their use in the prevention of disease and maintenance of good health.
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Affiliation(s)
- Prashamsa Koirala
- Department of Food and Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Hyun Ah Jung
- Department of Food Science and Human Nutrition, Chonbuk National University, Jeonju, 54896, Republic of Korea.
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan, 48513, Republic of Korea.
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31
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Li W, Yuan G, Pan Y, Wang C, Chen H. Network Pharmacology Studies on the Bioactive Compounds and Action Mechanisms of Natural Products for the Treatment of Diabetes Mellitus: A Review. Front Pharmacol 2017; 8:74. [PMID: 28280467 PMCID: PMC5322182 DOI: 10.3389/fphar.2017.00074] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/06/2017] [Indexed: 12/19/2022] Open
Abstract
Diabetes mellitus (DM) is a kind of chronic and metabolic disease, which can cause a number of diseases and severe complications. Network pharmacology approach is introduced to study DM, which can combine the drugs, target proteins and disease and form drug-target-disease networks. Network pharmacology has been widely used in the studies of the bioactive compounds and action mechanisms of natural products for the treatment of DM due to the multi-components, multi-targets, and lower side effects. This review provides a balanced and comprehensive summary on network pharmacology from current studies, highlighting different bioactive constituents, related databases and applications in the investigations on the treatment of DM especially type 2. The mechanisms related to type 2 DM, including α-amylase and α-glucosidase inhibitory, targeting β cell dysfunction, AMPK signal pathway and PI3K/Akt signal pathway are summarized and critiqued. It suggests that the network pharmacology approach cannot only provide a new research paradigm for natural products, but also improve the current antidiabetic drug discovery strategies. Furthermore, we put forward the perspectives on the reasonable applications of network pharmacology for the therapy of DM and related drug discovery.
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Affiliation(s)
| | | | | | | | - Haixia Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin UniversityTianjin, China
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32
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Cha SH, Lee JH, Kim EA, Shin CH, Jun HS, Jeon YJ. Phloroglucinol accelerates the regeneration of liver damaged by H2O2or MNZ treatment in zebrafish. RSC Adv 2017. [DOI: 10.1039/c7ra05994a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ROSs can cause oxidative damage to biological macromolecules. Particularly, liver is a vital organ in vertebrates and easily attacked by ROS. PG attenuates H2O2-induced oxidative stress, even in liver.
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Affiliation(s)
- Seon-Heui Cha
- College of Pharmacy
- Gachon University
- Incheon 21936
- Republic of Korea
- Lee Gil Ya Cancer and Diabetes Institute
| | - Ji-Hyeok Lee
- Lee Gil Ya Cancer and Diabetes Institute
- Gachon University
- Incheon 21936
- Republic of Korea
- Korea Mouse Metabolic Phenotyping Center (KMMPC)
| | - Eun-Ah Kim
- Jeju International Marine Science Center for Research & Education
- Korea Institute of Ocean Science & Technology (KIOST)
- Jeju
- Republic of Korea
| | - Chong Hyun Shin
- School of Biology
- The Parker H. Petit Institute for Bioengineering and Bioscience
- Georgia Institute of Technology
- Atlanta
- USA
| | - Hee-Sook Jun
- College of Pharmacy
- Gachon University
- Incheon 21936
- Republic of Korea
- Lee Gil Ya Cancer and Diabetes Institute
| | - You-Jin Jeon
- School of Marine Biomedical Sciences
- Jeju National University
- Jeju
- Republic of Korea
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33
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Zhang S, Zhang H, Wang L, Liu X, Wu Y. Microwave-assisted synthesis of chitosan biguanidine hydrochloride and its regulation on InsR and GLUT2 in insulin resistant HepG2 cells. RSC Adv 2017. [DOI: 10.1039/c6ra25998g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
CSGH increased glucose consumption of HepG2 cells by accelerating the expression of InsR and inhibiting the high-insulin-induced over-expression of GLUT2.
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Affiliation(s)
- Shengsheng Zhang
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Hai Zhang
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Li Wang
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Xiaofei Liu
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Yuntang Wu
- Department of Nutrition and Food Science
- School of Public Health
- Tianjin Medical University
- Tianjin
- P. R. China
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34
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Lopes G, Andrade PB, Valentão P. Phlorotannins: Towards New Pharmacological Interventions for Diabetes Mellitus Type 2. Molecules 2016; 22:E56. [PMID: 28042834 PMCID: PMC6155720 DOI: 10.3390/molecules22010056] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/21/2016] [Accepted: 12/28/2016] [Indexed: 12/25/2022] Open
Abstract
Diabetes mellitus is a group of metabolic disorders characterized by hyperglycaemia, and predicted by the World Health Organization as the expected 7th leading cause of death in 2030. Diabetes mellitus type 2 (DMT2) comprises the majority of diabetic individuals around the world (90%-95%). Pathophysiologically, this disorder results from a deregulation of glucose homeostasis, worsened by overweight and by a sedentary lifestyle, culminating in life-threatening cardiovascular events. The currently available anti-diabetic drugs are not devoid of undesirable side effects, sometimes responsible for poor therapeutic compliance. This represents a challenge for contemporary medicine, and stimulates research focused on the development of safer and more efficient anti-diabetic therapies. Amongst the most promising sources of new bioactive molecules, seaweeds represent valuable, but still underexploited, biofactories for drug discovery and product development. In this review, the role of phlorotannins, a class of polyphenols exclusively produced by brown seaweeds, in the management of DMT2 will be discussed, focusing on various pharmacologically relevant mechanisms and targets, including pancreatic, hepatic and intestinal enzymes, glucose transport and metabolism, glucose-induced toxicity and β-cell cytoprotection, and considering numerous in vitro and in vivo surveys.
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Affiliation(s)
- Graciliana Lopes
- Requimte/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, No. 228, Porto 4050-313, Portugal.
| | - Paula B Andrade
- Requimte/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, No. 228, Porto 4050-313, Portugal.
| | - Patrícia Valentão
- Requimte/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira, No. 228, Porto 4050-313, Portugal.
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35
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Cha SH, Heo SJ, Jeon YJ, Park SM. Dieckol, an edible seaweed polyphenol, retards rotenone-induced neurotoxicity and α-synuclein aggregation in human dopaminergic neuronal cells. RSC Adv 2016. [DOI: 10.1039/c6ra21697h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dopaminergic neurons are particularly vulnerable to oxidative stress, which may initiate a cascade of intracellular toxic events that lead to protein aggregation and subsequent cell death, causing Parkinson's disease.
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Affiliation(s)
- Seon-Heui Cha
- Department of Pharmacology
- Ajou University School of Medicine
- Suwon
- Korea
- Chronic Inflammatory Disease Research Center
| | - Soo-Jin Heo
- Jeju International Marine Science Center for Research & Education
- Korea Institute of Ocean Science & Technology (KIOST)
- Jeju
- Korea
| | - You-Jin Jeon
- School of Marine Biomedical Sciences
- Jeju National University
- Jeju
- Korea
| | - Sang Myun Park
- Department of Pharmacology
- Ajou University School of Medicine
- Suwon
- Korea
- Chronic Inflammatory Disease Research Center
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