1
|
Wubuli A, Abdulla R, Zhao J, Wu T, Aisa HA. Exploring anti-inflammatory and antioxidant-related quality markers of Artemisia absinthium L. based on spectrum-effect relationship. PHYTOCHEMICAL ANALYSIS : PCA 2024; 35:1152-1173. [PMID: 38591190 DOI: 10.1002/pca.3350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 04/10/2024]
Abstract
INTRODUCTION Artemisia absinthium L. is a well-known medicinal, aromatic, and edible plant with important medicinal and economic properties and a long history of use in treating liver inflammation and other diseases; however, there has been insufficient progress in quality control. OBJECTIVE This study aimed to investigate the quality markers for the anti-inflammatory and antioxidant activities of A. absinthium based on spectrum-effect relationship analysis. MATERIALS AND METHODS Eighteen batches of A. absinthium from different origins were used. Chemical fingerprints were obtained by ultra-performance liquid chromatography (UPLC). The chemical compositions were identified by quadrupole-Orbitrap high-resolution mass spectrometry. Anti-inflammatory activity was assessed by inhibition of cyclooxygenase-2 and 15-lipoxygenase in vitro and inhibition of nitric oxide release in lipopolysaccharide-induced BV-2 cells. Antioxidant activity was assessed by DPPH and ABTS radical scavenging assays. The relationship between bioactivity and chemical fingerprints was then analyzed using chemometrics including gray relational analysis, bivariate correlation analysis, and orthogonal partial least squares analysis. RESULTS Different batches of A. absinthium extracts possessed significant anti-inflammatory and antioxidant activities to varying degrees. Eighty compounds were identified from A. absinthium, and 12 main common peaks were obtained from the UPLC fingerprints. P3 (chlorogenic acid), P5 (isochlorogenic acid A), and P6 (isochlorogenic acid C) were screened as the most promising active compounds by correlation analysis and further validated for their remarkable anti-inflammatory effects. CONCLUSION This is the first study to screen the quality markers of A. absinthium by establishing the spectrum-effect relationship, which can provide a reference for the development of quality standards and further research on A. absinthium.
Collapse
Affiliation(s)
- Ayixiamuguli Wubuli
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Rahima Abdulla
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang, China
| | - Jiangyu Zhao
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang, China
| | - Tao Wu
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang, China
| | - Haji Akber Aisa
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang, China
- University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
2
|
Rautela K, Kumar A, Rana SK, Jugran AK, Bhatt ID. Distribution, Chemical Constituents and Biological Properties of Genus Malaxis. Chem Biodivers 2024; 21:e202301830. [PMID: 38289898 DOI: 10.1002/cbdv.202301830] [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: 11/19/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/01/2024]
Abstract
The genus Malaxis (family Orchidaceae), comprises nearly 183 species available across the globe. The plants of this genus have long been employed in traditional medical practices because of their numerous biological properties, like the treatment of infertility, hemostasis, burning sensation, bleeding diathesis, fever, diarrhea, dysentery, febrifuge, tuberculosis, etc. Various reports highlight their phytochemical composition and biological activities. However, there is a lack of systematic review on the distribution, phytochemistry, and biological properties of this genus. Hence, this study aims to conduct a thorough and critical review of Malaxis species, covering data published from 1965 to 2022 with nearly 90 articles. Also, it examines different bioactive compounds, their chemistry, and pharmacotherapeutics as well as their traditional uses. A total of 189 unique compounds, including the oil constituents were recorded from Malaxis species. The highest active ingredients were obtained from Malaxis acuminata (103) followed by Malaxis muscifera (49) and Malaxis rheedei (33). In conclusion, this review offers an overview of the current state of knowledge on Malaxis species and highlights prospects for future research projects on them. Additionally, it recommends the promotion of domestication studies for rare medicinal orchids like Malaxis and the prompt implementation of conservation measures.
Collapse
Affiliation(s)
- Kalpana Rautela
- G. B. Pant National Institute of Himalayan Environment, Garhwal Regional Centre, Upper Bhaktiyana, Srinagar-246174, Uttarakhand, India
| | - Ashish Kumar
- G. B. Pant National Institute of Himalayan Environment, Garhwal Regional Centre, Upper Bhaktiyana, Srinagar-246174, Uttarakhand, India
| | - Suresh K Rana
- G. B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora 263643, India
| | - Arun K Jugran
- G. B. Pant National Institute of Himalayan Environment, Garhwal Regional Centre, Upper Bhaktiyana, Srinagar-246174, Uttarakhand, India
| | - Indra D Bhatt
- G. B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora 263643, India
| |
Collapse
|
3
|
López-Sánchez C, Lagoa R, Poejo J, García-López V, García-Martínez V, Gutierrez-Merino C. An Update of Kaempferol Protection against Brain Damage Induced by Ischemia-Reperfusion and by 3-Nitropropionic Acid. Molecules 2024; 29:776. [PMID: 38398528 PMCID: PMC10893315 DOI: 10.3390/molecules29040776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Kaempferol, a flavonoid present in many food products, has chemical and cellular antioxidant properties that are beneficial for protection against the oxidative stress caused by reactive oxygen and nitrogen species. Kaempferol administration to model experimental animals can provide extensive protection against brain damage of the striatum and proximal cortical areas induced by transient brain cerebral ischemic stroke and by 3-nitropropionic acid. This article is an updated review of the molecular and cellular mechanisms of protection by kaempferol administration against brain damage induced by these insults, integrated with an overview of the contributions of the work performed in our laboratories during the past years. Kaempferol administration at doses that prevent neurological dysfunctions inhibit the critical molecular events that underlie the initial and delayed brain damage induced by ischemic stroke and by 3-nitropropionic acid. It is highlighted that the protection afforded by kaempferol against the initial mitochondrial dysfunction can largely account for its protection against the reported delayed spreading of brain damage, which can develop from many hours to several days. This allows us to conclude that kaempferol administration can be beneficial not only in preventive treatments, but also in post-insult therapeutic treatments.
Collapse
Affiliation(s)
- Carmen López-Sánchez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 06006 Badajoz, Spain; (J.P.); (V.G.-L.); (V.G.-M.)
- Department of Human Anatomy and Embryology, Faculty of Medicine and Health Sciences, University of Extremadura, 06006 Badajoz, Spain
| | - Ricardo Lagoa
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena-Alto do Vieiro, 2411-901 Leiria, Portugal;
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Polytechnic Institute of Leiria, 2411-901 Leiria, Portugal
| | - Joana Poejo
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 06006 Badajoz, Spain; (J.P.); (V.G.-L.); (V.G.-M.)
| | - Virginio García-López
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 06006 Badajoz, Spain; (J.P.); (V.G.-L.); (V.G.-M.)
- Department of Medical and Surgical Therapeutics, Pharmacology Area, Faculty of Medicine and Health Sciences, University of Extremadura, 06006 Badajoz, Spain
| | - Virginio García-Martínez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 06006 Badajoz, Spain; (J.P.); (V.G.-L.); (V.G.-M.)
- Department of Human Anatomy and Embryology, Faculty of Medicine and Health Sciences, University of Extremadura, 06006 Badajoz, Spain
| | - Carlos Gutierrez-Merino
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 06006 Badajoz, Spain; (J.P.); (V.G.-L.); (V.G.-M.)
| |
Collapse
|
4
|
Identification of peptides with antioxidant, anti-lipoxygenase, anti-xanthine oxidase and anti-tyrosinase activities from velvet antler blood. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
5
|
Kurihara H, Yachiyama K, Morimoto C. Classification of Marine Algae–Derived Compounds by the Mechanism Responsible for Decreasing Lipoxygenase-Catalyzed Lipid Hydroperoxides. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221115249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Lipoxygenase (LOX)-mediated lipid hydroperoxides (LHPOs) are converted to physiologically active mediators. Thus, decreasing hydroperoxides is important for diminishing various health-related risks. In this study, decreasing compounds of LOX-catalyzed LHPOs were investigated and classified by mechanism using a modified triple LOX-indamine dye formation (IDF) method. The compounds 2,3-dibromo-4,5-dihydroxybenzyl methyl ether (1) and fucoxanthin (2) were isolated from algae as compounds that can decrease hydroperoxides. Along with previously isolated pheophytin a (3), a chlorophyll-related compound, and purchased nordihydroguaiaretic acid (4), a well-known lipoxygenase inhibitor, all the compounds were examined to determine the mechanisms responsible for decreasing LHPOs by using a modified triple LOX-IDF method. Compounds 1 and 4 were found to be LOX inhibitors, compound 2 was a decomposer of the produced LHPOs, and compound 3 was both an inhibitor and a decomposer of the produced LHPOs.
Collapse
Affiliation(s)
- Hideyuki Kurihara
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Kenta Yachiyama
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Chihiro Morimoto
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| |
Collapse
|
6
|
Liu G, Fan Y, Tao Y, Wang S, Wang M, Li L. Interactions of potato-derived and human recombinant 5-lipoxygenase with sec-O-glucosylhamaudol by multi-spectroscopy and molecular docking. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 274:121100. [PMID: 35272121 DOI: 10.1016/j.saa.2022.121100] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 02/23/2022] [Accepted: 02/26/2022] [Indexed: 06/14/2023]
Abstract
5-lipoxygenase (5-LOX) was a key enzyme involved in many inflammatory diseases. Sec-O-glucosylhamaudol (SOG) was a chromone found in Saposhnikovia divaricata (Turcz.) Schischk (S. divaricate). The potato-derived 5-LOX (p-5-LOX) and human recombinant 5-LOX (h-5-LOX) were selected as model protein due to their simple usability and high stability in this study. Thus, the binding interactions of p-5-LOX and h-5-LOX with SOG were investigated by multi-spectroscopy and molecular docking. As a result, the fluorescence intensities of the two 5-LOX were quenched statically by SOG. However, the binding ability of SOG to h-5-LOX was higher than that of p-5-LOX at the same temperature. The results of multi-spectroscopy revealed that the conformation and micro-environment of the two 5-LOX proteins were changed after binding with SOG. Fluorescence assay and molecular docking indicated that hydrogen bond and electrostatic gravitation were the main forces between the two 5-LOX and SOG. Our results here suggested that SOG may exert anti-inflammatory effect by inhibiting 5-LOX activity.
Collapse
Affiliation(s)
- Guiming Liu
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Yangyang Fan
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Yanzhou Tao
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Suqing Wang
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Meizi Wang
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Li Li
- The College of Chemistry, Changchun Normal University, Changchun 130032, China.
| |
Collapse
|
7
|
Romo-Rico J, Krishna SM, Bazaka K, Golledge J, Jacob MV. Potential of plant secondary metabolite-based polymers to enhance wound healing. Acta Biomater 2022; 147:34-49. [PMID: 35649506 DOI: 10.1016/j.actbio.2022.05.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 11/01/2022]
Abstract
There is a global epidemic of non-healing wounds. Chronic inflammation, overexpression of pro-inflammatory cytokines, oxidative stress and bacterial infection are implicated in delayed wound healing. Natural extracts are a rich source of bioactive molecules called plant secondary metabolites (PSMs) that include terpenes and phenols. These molecules may facilitate wound healing through their antioxidant, anti-inflammatory, and antibacterial activity. After briefly outlining the process of wound healing and how it is compromised in chronic wounds, this review focuses on investigating how PSMs-based polymers may improve wound healing. Best methods for incorporating PSMs into wound dressings are reviewed and critically compared. The exiting body of literature strongly suggests that PSMs-based polymers incorporated into wound dressings could have clinical value in aiding wound healing. STATEMENT OF SIGNIFICANCE: Chronic wounds develop by the persistence of inflammation, oxidative stress and infection. Chronic wounds affect the worldwide population, by reducing quality of life of patients with significant cost to healthcare systems. To help chronic wounds to heal and overcome this burden, materials with anti-inflammatory, antioxidant and antibacterial properties are required. Plant secondary metabolites (PSMs) are volatile materials that have all these properties. PSMs-based polymers can be fabricated by polymerization techniques. The present review provides an overview of the state-of-the-art of the wound healing mechanisms of PSMs. Current developments in the field of PSMs-based polymers are reviewed and their potential use as wound dressings is also covered.
Collapse
|
8
|
Bujak T, Zagórska-Dziok M, Ziemlewska A, Nizioł-Łukaszewska Z, Lal K, Wasilewski T, Hordyjewicz-Baran Z. Flower Extracts as Multifunctional Dyes in the Cosmetics Industry. Molecules 2022; 27:molecules27030922. [PMID: 35164187 PMCID: PMC8838747 DOI: 10.3390/molecules27030922] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 01/27/2023] Open
Abstract
Flowers are a natural source of bioactive compounds that not only have antioxidant, anti-inflammatory, and anti-aging properties, but can also be used as natural dyes. For this reason, nowadays plants are widely used to produce natural cosmetics and foods. In these studies, the properties of the water extracts of Papaver rhoeas L., Punica granatum L., Clitoria ternatea L., Carthamus tinctorius L., and Gomphrena globosa L., as bioactive, natural dyes, were investigated. Plant flower extracts were tested for their antioxidant (ABTS and DPPH radical methods) and anti-inflammatory effects by determining the ability to inhibit the activity of lipoxygenase and proteinase. The extracts were tested for their cytotoxic effect on skin cells, using Alamar Blue and Neutral Red tests. The ability to inhibit the activity of enzymes responsible for the destruction of elastin and collagen was also studied. Research has shown that extracts have no toxic effect on skin cells, are a rich source of antioxidants and show the ability to inhibit the activity of elastase and collagenase enzymes. P. rhoeas extract showed the strongest antioxidant properties with IC50 value of 24.8 ± 0.42 µg/mL and 47.5 ± 1.01 µg/mL in ABTS and DPPH tests, respectively. The tested plants are also characterized by an anti-inflammatory property, for which the ability to inhibit lipoxygenase at a level above 80% and proteinase at the level of about 55% was noted. Extracts from P. rhoeas, C. ternatea, and C. tinctorius show the strongest coloring ability and can permanently dye cosmetic products, without significant color changes during the storage of the product.
Collapse
Affiliation(s)
- Tomasz Bujak
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (K.L.)
- Correspondence:
| | - Martyna Zagórska-Dziok
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (K.L.)
| | - Aleksandra Ziemlewska
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (K.L.)
| | - Zofia Nizioł-Łukaszewska
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (K.L.)
| | - Kamila Lal
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (K.L.)
| | - Tomasz Wasilewski
- Department of Industrial Chemistry, University of Technology and Humanities in Radom, Chrobrego 27, 26-600 Radom, Poland;
- Research and Development Department, ONLYBIO.life S.A., Wojska Polskiego 65, 85-825 Bydgoszcz, Poland
| | - Zofia Hordyjewicz-Baran
- ŁUKASIEWICZ Research Network—Institute of Heavy Organic Synthesis “Blachownia”, Energetykow 9, 47-225 Kedzierzyn-Kozle, Poland;
| |
Collapse
|
9
|
Anti-inflammatory and Antioxidant Properties of Finger Millet ( Eleusine coracana (L.) Gaertn.) Varieties Cultivated in Sri Lanka. BIOMED RESEARCH INTERNATIONAL 2021; 2021:7744961. [PMID: 34631888 PMCID: PMC8500749 DOI: 10.1155/2021/7744961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 11/18/2022]
Abstract
The prevalence of inflammatory-mediated and oxidative stress-associated diseases is increasing worldwide, creating an increasing demand for novel sources of anti-inflammatory agents and antioxidants. This study was focused on determining the in vitro arachidonate 5-lipoxygenase (A5-LOX), xanthine oxidase (XO), hyaluronidase and oxidative burst inhibitory activities, and antioxidant properties of Ravi, Rawana, and Oshadha finger millet varieties using ethanolic and methanolic extracts. Among all extracts, the methanolic extract of Oshadha exhibited the highest A5-LOX (IC50 value: 484.42 μg/ml) and XO (IC50 value: 764.34 μg/ml) inhibitory activities. All extracts showed less than 50% hyaluronidase inhibitory activity at 1 mg/ml concentration. Methanolic extracts showed moderate inhibitory potential on reactive oxygen species (ROS) generated from whole blood phagocytes, with IC50 values ranging between 26.9 and 27.7 μg/ml, when compared to ibuprofen (IC50 value: 11.18 μg/ml). All extracts showed potent inhibition of ROS produced from polymorphonuclear neutrophils isolated from human blood when compared to ibuprofen (IC50 value: 2.47 μg/ml) and IC50 values of methanolic and ethanolic extracts ranged from 0.29 to 0.47 μg/ml and 1.35 to 1.70 μg/ml, respectively. All extracts had significantly high amounts of phenolic compounds including flavonoids and the potential to scavenge 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic) acid (ABTS) cation, 2,2-diphenyl-1-picryl-hydrazyl (DPPH), and oxygen radicals. Besides, they were able to reduce metal ions and chelate metal ions terminating radical generating reactions. This is the first report of A5-LOX, XO, hyaluronidase, and oxidative burst inhibitory properties of any extract of any finger millet variety cultivated in Sri Lanka. The findings revealed the potential of using these finger millet extracts as natural sources of anti-inflammatory drug candidates. Additionally, the findings indicated that Ravi, Rawana, and Oshadha varieties are good sources of antioxidants. Therefore, consumption of these finger millet varieties on a regular basis may play an important role in the prevention and dietary management of oxidative stress-associated diseases.
Collapse
|
10
|
Cosmetic and Dermatological Properties of Selected Ayurvedic Plant Extracts. Molecules 2021; 26:molecules26030614. [PMID: 33503925 PMCID: PMC7866120 DOI: 10.3390/molecules26030614] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 02/07/2023] Open
Abstract
Due to the constantly growing interest in ingredients of natural origin, this study attempts to evaluate the possibility of using extracts from three Ayurvedic plants in preparations for the care and treatment of skin diseases. Therefore, studies of antioxidant properties were carried out using DPPH and ABTS radicals, obtaining 76% and 88% of these radical scavenging, respectively. A significant decrease in the intracellular level of free radicals and an increase in the activity of the antioxidant enzyme-superoxide dismutase by almost 60% were also observed. In addition, the extracts were assessed for anti-inflammatory and anti-aging properties, obtaining over 70% inhibition of lipoxygenase activity and almost 40% of collagenase. Additionally, the cytoprotective properties of the obtained extracts on skin cells, keratinocytes and fibroblasts, were demonstrated. To assess the content of biologically active compounds, HPLC-electrospray ionization (ESI)-MS/MS multiple reaction monitoring (MRM) analyses were performed. The obtained results show that all three analyzed plants are a valuable source of biologically active substances with desired properties in the context of skin cell protection. Particularly noteworthy is the extract of Epilobium angustifolium L., for which the most promising results were obtained.
Collapse
|
11
|
Lescano CH, Freitas de Lima F, Cardoso CAL, Vieira SCH, Mónica FZ, Pires de Oliveira I. Rutin present in Alibertia edulis extract acts on human platelet aggregation through inhibition of cyclooxygenase/thromboxane. Food Funct 2021; 12:802-814. [PMID: 33393955 DOI: 10.1039/d0fo02276d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Alibertia edulis leaf extract is commonly used in folk medicine, with rutin caffeic and vanillic acids being its major compounds. The Alibertia edulis leaf extract was investigated for its pharmacological effects via platelet aggregation, calcium mobilization, cyclic nucleotides levels, vasodilator-stimulated phosphoprotein Ser157 and Ser239 and protein kinase Cβ2 phosphorylation, thromboxane B2, cyclooxygenases 1 and 2, docking and molecular dynamics. Alibertia edulis leaf extract significantly inhibited (100-1000 μg mL-1) platelet aggregation induced by different agonists. Arachidonic acid increased levels of calcium and thromboxane B2, phosphorylation of vasodilator-stimulated phosphoprotein Ser157 and Ser239, and protein kinase Cβ, which were significantly reduced by Alibertia edulis leaf extract, rutin, and caffeic acid as well mixtures of rutin/caffeic acid. Cyclooxygenase 1 activity was inhibited for Alibertia edulis leaf extract, rutin and caffeic acid. These inhibitions were firsrtly explored by specific stabilization of rutin and caffeic acid compared to diclofenac at the catalytic site from docking score and free-energy dissociation profiles. Then, simulations detailed the rutin interactions close to the heme group and Tyr385, responsible for catalyzing the conversion of arachidonic acid to its products. Our results reveal the antiplatelet aggregation properties of Alibertia edulis leaf extract, rutin and caffeic acid providing pharmacological information about its origin from cyclooxygenase 1 inhibition and its downstream pathway.
Collapse
|
12
|
Mashayekhi-sardoo H, Razavi BM, Ekhtiari M, Kheradmand N, Imenshahidi M. Gastroprotective effects of both aqueous and ethanolic extracts of Lemon verbena leaves against indomethacin-induced gastric ulcer in rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:1639-1646. [PMID: 33489039 PMCID: PMC7811806 DOI: 10.22038/ijbms.2020.44341.10377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 09/05/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVES Regarding Lemon verbena gastroprotective effects, we investigated the protective effects of Lemon verbena extracts on reducing gastric ulcer induced by indomethacin. MATERIALS AND METHODS Rats received aqueous and ethanolic extracts of Lemon verbena (50, 100, and 200 mg/kg), zileuton (100 mg/kg), montelukast (10 mg/kg), or 1% Tween 80 in presence or absence of indomethacin (100 mg/kg). RESULTS Indomethacin produced stomach ulcer and increased neutrophils percentage and MDA level compared with the control group (P<0.001). Co-administration of indomethacin and zileuton, montelukast and ethanolic (200 mg/kg) (P<0.001), aqueous extract (200 mg/kg) (P<0.05) reduced ulcer compared with the indomethacin group (P<0.001). Ethanolic extracts (100 and 200 mg/kg) and aqueous extract (200 mg/kg) reduced the MDA level (P<0.001). Ethanolic (50, 100, and 200 mg/kg) and aqueous extracts (200 mg/kg) significantly decreased neutrophils percentage compared with the indomethacin group (P<0.001). CONCLUSION Aqueous and particularly ethanolic extracts of Lemon verbena have protective effects on indomethacin-induced gastric ulcers.
Collapse
Affiliation(s)
- Habibeh Mashayekhi-sardoo
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Marjan Razavi
- Targeted Drug Delivery Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Ekhtiari
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Negar Kheradmand
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
13
|
Gawlik-Dziki U, Dziki L, Anisiewicz J, Habza-Kowalska E, Sikora M, Dziki D. Leaves of White Beetroot As a New Source of Antioxidant and Anti-Inflammatory Compounds. PLANTS (BASEL, SWITZERLAND) 2020; 9:E944. [PMID: 32722637 PMCID: PMC7464984 DOI: 10.3390/plants9080944] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 11/17/2022]
Abstract
The white beetroot cv. Śnieżna Kula is the first betanin-free beetroot registered in the European Union. The aim of this study was to compare the phenolic acids profile and antioxidant capacity of leaves of white (SK) and red (CC) beetroots and red (LC) and white (BL) Swiss chard growing in Poland. LC leaves were the richest source of total phenolics (16.55 mg GAE/g FW) and phenolic acids (1.81 mg/g FW), while the highest content of flavonoids was determined in CC leaves (1.6 mg QE/g FW). The highest antiradical activity was observed for LC, whereas CC extract exhibited the highest chelating power. BL and CC leaf extracts demonstrated high LOX inhibitory potential (EC50 = 53.23 and 56.97 mg FW/mL, respectively). An uncompetitive type of LOX inhibition was obtained for all extracts. SK extracts demonstrated the highest XO inhibitory activity (EC50 = 81.04 mg FW/mL). A noncompetitive type of XO inhibition was obtained in both extracts from red leaves (CC and LC), whereas an uncompetitive mode of inhibition was observed in the case of white leaf (SK and LC) extracts. Thus, it can be assumed that the presence of betanin influences the XO inhibition mechanism.
Collapse
Affiliation(s)
- Urszula Gawlik-Dziki
- Department of Biochemistry and Food Chemistry, University of Life Sciences, 8 Skromna Str., 20-704 Lublin, Poland; (L.D.); (J.A.); (E.H.-K.); (M.S.)
| | - Laura Dziki
- Department of Biochemistry and Food Chemistry, University of Life Sciences, 8 Skromna Str., 20-704 Lublin, Poland; (L.D.); (J.A.); (E.H.-K.); (M.S.)
| | - Jakub Anisiewicz
- Department of Biochemistry and Food Chemistry, University of Life Sciences, 8 Skromna Str., 20-704 Lublin, Poland; (L.D.); (J.A.); (E.H.-K.); (M.S.)
| | - Ewa Habza-Kowalska
- Department of Biochemistry and Food Chemistry, University of Life Sciences, 8 Skromna Str., 20-704 Lublin, Poland; (L.D.); (J.A.); (E.H.-K.); (M.S.)
| | - Małgorzata Sikora
- Department of Biochemistry and Food Chemistry, University of Life Sciences, 8 Skromna Str., 20-704 Lublin, Poland; (L.D.); (J.A.); (E.H.-K.); (M.S.)
| | - Dariusz Dziki
- Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, 31 Głęboka St., 20-612 Lublin, Poland;
| |
Collapse
|
14
|
Cordaro M, Siracusa R, Fusco R, D’Amico R, Peritore AF, Gugliandolo E, Genovese T, Scuto M, Crupi R, Mandalari G, Cuzzocrea S, Di Paola R, Impellizzeri D. Cashew ( Anacardium occidentale L.) Nuts Counteract Oxidative Stress and Inflammation in an Acute Experimental Model of Carrageenan-Induced Paw Edema. Antioxidants (Basel) 2020; 9:antiox9080660. [PMID: 32722199 PMCID: PMC7465066 DOI: 10.3390/antiox9080660] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/16/2020] [Accepted: 07/20/2020] [Indexed: 12/19/2022] Open
Abstract
Background: Anacardium occidentale L. is a medicinal plant with powerful anti-oxidative and anti-inflammatory properties. Acute inflammatory events cause tissue alterations, decrease of anti-oxidative endogenous enzymes such as superoxide dismutase, catalase and glutathione, neutrophils infiltration, increase in the activities of myeloperoxidase, malondialdehyde, and pro-inflammatory release. Methods: Paw edema was induced by subplantar injection of carrageenan into the right hind paw in rats, but 30 min before a group of animals were orally treated with 100 mg/kg of cashew nuts to evaluate the anti-inflammatory and anti-oxidative response. Results: In the present work, we found that (1) cashew nuts reduced the development of carrageenan-induced paw edema limiting the formation of edema and pain; (2) cashew nuts ameliorated the diminutions of the anti-oxidative enzymes caused by carrageenan injection; (3) cashew nuts decreased myeloperoxidase malondialdehyde activity induced by carrageenan; and (4) cashew nuts acted by blocking pro-inflammatory cytokines response and nitrate/nitrite formation stimulated by carrageenan injection. Conclusions: The mechanisms of anti-inflammatory and analgesic effects exerted by cashew nuts were relevant to oxygen free radical scavenging, anti-lipid peroxidation, and inhibition of the formation of inflammatory cytokines.
Collapse
Affiliation(s)
- Marika Cordaro
- Department of Biomedical, Dental and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria, 98125 Messina, Italy;
| | - Rosalba Siracusa
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| | - Roberta Fusco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| | - Ramona D’Amico
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| | - Alessio Filippo Peritore
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| | - Enrico Gugliandolo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| | - Tiziana Genovese
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| | - Maria Scuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy;
| | - Rosalia Crupi
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy;
| | - Giuseppina Mandalari
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, Saint Louis, MO 63104, USA
- Correspondence: (S.C.); (R.D.P.); Tel.: +39-090-6765-208 (S.C. & R.D.P.)
| | - Rosanna Di Paola
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
- Correspondence: (S.C.); (R.D.P.); Tel.: +39-090-6765-208 (S.C. & R.D.P.)
| | - Daniela Impellizzeri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.S.); (R.F.); (R.D.); (A.F.P.); (E.G.); (T.G.); (G.M.); (D.I.)
| |
Collapse
|
15
|
Landberg R, Sunnerheim K, Dimberg LH. Avenanthramides as lipoxygenase inhibitors. Heliyon 2020; 6:e04304. [PMID: 32637696 PMCID: PMC7330496 DOI: 10.1016/j.heliyon.2020.e04304] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 01/21/2020] [Accepted: 06/22/2020] [Indexed: 01/18/2023] Open
Abstract
Avenanthramides (AVAs) present in oats are amides of anthranilic and cinnamic acids. AVAs are potent antioxidants and have anti-inflammatory properties. There are various potential mechanisms for their anti-inflammatory effects, including inhibition of lipoxygenases (LOX), which catalyse oxygenation of polyunsaturated fatty acids into potent signal molecules involved in inflammatory processes. In this study, AVAs were screened for LOX inhibition in vitro and structure-activity relationships were examined. Twelve different AVAs at 0.6 mM were tested as LOX inhibitors. The corresponding free cinnamic acids, the AVA analogue Tranilast® and the known LOX inhibitor trans-resveratrol were included for comparison. It was found that AVAs comprising caffeic or sinapic acid exhibited significant lipoxygenase inhibition (60–90%) (P < 0.05), whereas low or no inhibition was observed with AVAs containing p-coumaric or ferulic acid. No difference in inhibition was seen on comparing AVAs with their free corresponding cinnamic acids, which implies that the anthranilic acid part of the avenanthramide molecule does not affect inhibition. Trans-resveratrol showed inhibition, whereas no inhibition was seen for Tranilast® at the concentrations used in this study. This study suggests that aventahtramides comprising caffeic acid or sinapic acid partly exert their antioxidant and anti-inflammatory effects via lipoxygenase inhibition.
Collapse
Affiliation(s)
- Rikard Landberg
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Kerstin Sunnerheim
- Department of Chemical Engineering, Mid Sweden University, Sundsvall, Sweden
| | - Lena H Dimberg
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Department of Molecular Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| |
Collapse
|
16
|
Nabatanzi A, Nkadimeng SM, Lall N, Kabasa JD, McGaw LJ. Antioxidant and Anti-Inflammatory Activities of Kigelia africana (Lam.) Benth. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2020; 2020:4352084. [PMID: 32655661 PMCID: PMC7317318 DOI: 10.1155/2020/4352084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/05/2020] [Indexed: 12/21/2022]
Abstract
Kigelia africana is used to manage inflammation among indigenous communities. We hypothesized that K. africana extracts contain phytoconstituents with good antioxidant and anti-inflammatory activities. The methanolic extract of K. africana fruits and Spathodea campanulata leaves (SPK04), K. africana aqueous fruit extract (KFM02), and K. africana acetone fruit extract (KFM05) were subjected to antioxidant and anti-inflammatory assays. Antioxidant activity was evaluated using the ABTS radical scavenging assay, and the MTT cell viability assay was used for cytotoxicity. The extracts were preincubated with enzymes and assayed for 15-LOX and COX-2 enzyme activity using an ELISA method. Nitric oxide (NO) inhibitory effect of the extracts was evaluated and measurement of proinflammatory cytokines (IL-1β, TNF-α, and IL-6) and the anti-inflammatory cytokine (IL-10) was done using ELISA kits. SPK04 had the highest antioxidant activity with a mean inhibition of 99.37 ± 0.56% and an IC50 of 4.28 µg/mL. SPK04 and KFM05 did not inhibit 15-LOX as their IC50 values were >1000 μg/mL. All extracts were safe on Vero cells at the highest concentration (200 µg/mL) tested. KFM02 was the best inhibitor of NO production and had the highest cell viability at both the lowest (50 µg/mL) and highest concentrations (200 µg/mL). SPK04 was the best COX-2 inhibitor while KFM05 expressed the strongest suppression effect for IL-β and IL-6. KFM02 did not inhibit IL-6 at the highest concentration (200 µg/mL). The order of suppression of TNF-α by the extracts differed across concentrations, KFM05 > SPK04 > KFM02 at 200 µg/mL, KFM02 > SPK04 > KFM05 at 100 µg/mL, and SPK04 > KFM02 > KFM05 at 50 µg/mL. All the tested extracts had no inhibitory effect against IL-10. SPK04, KFM05, and KFM02 had good antioxidant and anti-inflammatory activity and this supports their use as potential anti-inflammatory therapies. This study presents for the first time the antioxidant and anti-inflammatory activity of K. africana and S. campanulata polyherbal extract. It is also among the very few studies that have reported the inhibitory effect of cytokines IL-1β, TNF-α, IL-6, and IL-10 by K. africana.
Collapse
Affiliation(s)
- Alice Nabatanzi
- Department of Plant Sciences, Microbiology and Biotechnology, College of Natural Sciences, Makerere University, Kampala 00256, Uganda
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa
- Department of Plant and Soil Sciences, University of Pretoria, Hatfield 0028, South Africa
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala 00256, Uganda
- Future Africa, University of Pretoria, Hatfield 0028, South Africa
| | - Sanah M. Nkadimeng
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa
| | - Namrita Lall
- Department of Plant and Soil Sciences, University of Pretoria, Hatfield 0028, South Africa
- School of Natural Resources, University of Missouri, Columbia 65211, USA
- College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570015, India
| | - John D. Kabasa
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala 00256, Uganda
| | - Lyndy J. McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa
| |
Collapse
|
17
|
Bioactive C 17 and C 18 Acetylenic Oxylipins from Terrestrial Plants as Potential Lead Compounds for Anticancer Drug Development. Molecules 2020; 25:molecules25112568. [PMID: 32486470 PMCID: PMC7321150 DOI: 10.3390/molecules25112568] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
Bioactive C17 and C18 acetylenic oxylipins have shown to contribute to the cytotoxic, anti-inflammatory, and potential anticancer properties of terrestrial plants. These acetylenic oxylipins are widely distributed in plants belonging to the families Apiaceae, Araliaceae, and Asteraceae, and have shown to induce cell cycle arrest and/or apoptosis of cancer cells in vitro and to exert a chemopreventive effect on cancer development in vivo. The triple bond functionality of these oxylipins transform them into highly alkylating compounds being reactive to proteins and other biomolecules. This enables them to induce the formation of anti-inflammatory and cytoprotective phase 2 enzymes via activation of the Keap1–Nrf2 signaling pathway, inhibition of proinflammatory peptides and proteins, and/or induction of endoplasmic reticulum stress, which, to some extent, may explain their chemopreventive effects. In addition, these acetylenic oxylipins have shown to act as ligands for the nuclear receptor PPARγ, which play a central role in growth, differentiation, and apoptosis of cancer cells. Bioactive C17 and C18 acetylenic oxylipins appear, therefore, to constitute a group of promising lead compounds for the development of anticancer drugs. In this review, the cytotoxic, anti-inflammatory and anticancer effects of C17 and C18 acetylenic oxylipins from terrestrial plants are presented and their possible mechanisms of action and structural requirements for optimal cytotoxicity are discussed.
Collapse
|
18
|
Raziq N, Saeed M, Ali MS, Lateef M, Shahid M, Akbar S, Zafar S. Muriolide, a novel antioxidant lactone from Ranunculus muricatus. Nat Prod Res 2020; 35:4994-5000. [PMID: 32352323 DOI: 10.1080/14786419.2020.1758091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Muriolide (1), a new aromatic lactone, has been isolated from the ethyl acetate fraction of Ranunculus muricatus. The compound was structurally characterized with the help of UV, IR, mass, 1D- and 2D-NMR data. It was tested in vitro for antioxidant and lipoxygenase inhibitory potential. Compound 1 showed good DPPH radical scavenging activity (IC50=56.9 μM), however it was moderately active against lipoxygenase enzyme (IC50=68.3 μM).
Collapse
Affiliation(s)
- Naila Raziq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan
| | - Muhammad Saeed
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Muhammad Shaiq Ali
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Mehreen Lateef
- Multidisciplinary Research Lab, Bahria University Medical & Dental College, Karachi, Pakistan
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan
| | - Shehla Akbar
- Department of Pharmacy, CECOS University of Information Technology and Emerging Sciences, Peshawar, Pakistan
| | - Salman Zafar
- Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan
| |
Collapse
|
19
|
Napagoda M, Gerstmeier J, Butschek H, De Soyza S, Pace S, Lorenz S, Qader M, Witharana S, Nagahawatte A, Wijayaratne G, Svatoš A, Jayasinghe L, Koeberle A, Werz O. The Anti-Inflammatory and Antimicrobial Potential of Selected Ethnomedicinal Plants from Sri Lanka. Molecules 2020; 25:molecules25081894. [PMID: 32326068 PMCID: PMC7221831 DOI: 10.3390/molecules25081894] [Citation(s) in RCA: 5] [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: 03/21/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 02/01/2023] Open
Abstract
Traditional folk medicine in Sri Lanka is mostly based on plants and plant-derived products, however, many of these medicinal plant species are scientifically unexplored. Here, we evaluated the anti-inflammatory and antimicrobial potency of 28 different extracts prepared from seven popular medicinal plant species employed in Sri Lanka. The extracts were subjected to cell-based and cell-free assays of 5-lipoxygenase (5-LO), microsomal prostaglandin E2 synthase (mPGES)-1, and nitric oxide (NO) scavenging activity. Moreover, antibacterial and disinfectant activities were assessed. Characterization of secondary metabolites was achieved by gas chromatography coupled to mass spectrometric (GC-MS) analysis. n-Hexane- and dichloromethane-based extracts of Garcinia cambogia efficiently suppressed 5-LO activity in human neutrophils (IC50 = 0.92 and 1.39 µg/mL), and potently inhibited isolated human 5-LO (IC50 = 0.15 and 0.16 µg/mL) and mPGES-1 (IC50 = 0.29 and 0.49 µg/mL). Lipophilic extracts of Pothos scandens displayed potent inhibition of mPGES-1 only. A methanolic extract of Ophiorrhiza mungos caused significant NO scavenging activity. The lipophilic extracts of G. cambogia exhibited prominent antibacterial and disinfectant activities, and GC-MS analysis revealed the presence of fatty acids, sesquiterpenes and other types of secondary metabolites. Together, our results suggest the prospective utilization of G.cambogia as disinfective agent with potent anti-inflammatory properties.
Collapse
Affiliation(s)
- Mayuri Napagoda
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka;
- Correspondence: (M.N.); (O.W.); Tel.: +94-(0)71 9216281 (M.N.); +49-(0)3641-949801 (O.W.)
| | - Jana Gerstmeier
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, 07743 Jena, Germany; (J.G.); (H.B.); (S.P.); (A.K.)
| | - Hannah Butschek
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, 07743 Jena, Germany; (J.G.); (H.B.); (S.P.); (A.K.)
| | - Sudhara De Soyza
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka;
| | - Simona Pace
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, 07743 Jena, Germany; (J.G.); (H.B.); (S.P.); (A.K.)
| | - Sybille Lorenz
- Research Group Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, 07745 Jena, Germany; (S.L.); (A.S.)
| | - Mallique Qader
- National Institute of Fundamental Studies, Kandy 20000, Sri Lanka; (M.Q.); (L.J.)
| | - Sanjeeva Witharana
- Faculty of Engineering, Higher Colleges of Technology, PO Box 4793 Abu Dhabi, UAE;
| | - Ajith Nagahawatte
- Department of Microbiology, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka; (A.N.); (G.W.)
| | - Gaya Wijayaratne
- Department of Microbiology, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka; (A.N.); (G.W.)
| | - Aleš Svatoš
- Research Group Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, 07745 Jena, Germany; (S.L.); (A.S.)
| | - Lalith Jayasinghe
- National Institute of Fundamental Studies, Kandy 20000, Sri Lanka; (M.Q.); (L.J.)
| | - Andreas Koeberle
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, 07743 Jena, Germany; (J.G.); (H.B.); (S.P.); (A.K.)
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, 07743 Jena, Germany; (J.G.); (H.B.); (S.P.); (A.K.)
- Correspondence: (M.N.); (O.W.); Tel.: +94-(0)71 9216281 (M.N.); +49-(0)3641-949801 (O.W.)
| |
Collapse
|
20
|
LC-MS Analysis, 15-Lipoxygenase Inhibition, Cytotoxicity, and Genotoxicity of Dissotis multiflora (Sm) Triana ( Melastomataceae) and Paullinia pinnata Linn ( Sapindaceae). J Trop Med 2020; 2020:5169847. [PMID: 32148525 PMCID: PMC7049448 DOI: 10.1155/2020/5169847] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/15/2020] [Accepted: 01/25/2020] [Indexed: 11/21/2022] Open
Abstract
This study aims to evaluate the anti-inflammatory, cytotoxicity, and genotoxicity activities of Dissotis multiflora (Sm) Triana and Paullinia pinnata Linn used traditionally in Cameroon to treat infectious diseases. Phytochemical screening was carried out using the LC-MS procedure. The ferrous oxidation-xylenol orange (FOX) assay was used to determine the 15-lipoxygenase (15-LOX) inhibitory activity of the plant samples. The tetrazolium-based colorimetric (MTT) assay was performed using Vero cells. The Ames test was carried out using Salmonella typhimurium TA98 and TA100 tester strains. LC-MS chromatogram of D. multiflora led to the identification of four known compounds, namely, 5-(3,5-dinitrophenyl)-2H-tetrazol (2), 2,2'-{[2-(6-amino-9H-purine-9-yl)ethyl]imino}diethanol (14), 1,2,5-oxadiazolo [3,4-b]pyrazine, 5,6-di (3,5-dimethyl-1-piperidyl) (19), and nimbolinin D (20) while four compounds were also identified in P. pinnata known as 2-hydroxycarbamoyl-4-methyl-pentanoic acid (2), pheophorbide A (16), 1-[4-({2-[(1-methyl-1H-indol-5-yl)amino]-4-pyrimidinyl}oxy)-1-naphthyl]-3-[1-(4 methylphenyl)-3-(2-methyl-2-propanyl)-1H-pyrazol-5-yl]urea (17), and nimbolinin D (18). D. multiflora and P. pinnata inhibited 15-LOX activity in concentration-dependent manner. The LC50 (concentration that kills 50% of cells) values of the extracts ranged from 0.13 ± 00 to 1 ± 00 mg/mL for P. pinnata and D. multiflora, respectively. P. pinnata was cytotoxic at concentrations tested while D. multiflora was not. The selectivity index (SI) values ranged from 0.16 to 10.30 on Vero cell lines. No genotoxic effect was observed against both strains tested. These extracts are sources of compounds which can be used to control infectious diseases and associated inflammation. However, caution should be taken while using P. pinnata for medicinal purposes.
Collapse
|
21
|
Ondua M, Njoya EM, Abdalla MA, McGaw LJ. Anti-inflammatory and antioxidant properties of leaf extracts of eleven South African medicinal plants used traditionally to treat inflammation. JOURNAL OF ETHNOPHARMACOLOGY 2019; 234:27-35. [PMID: 30572091 DOI: 10.1016/j.jep.2018.12.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/13/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Inflammation is a complex mechanism employed by the body to promote healing and restoration to normal function in the event of injury. Eleven plant species were selected in this study based on their use in traditional medicine against inflammation in South Africa. METHODS Hexane, acetone, ethanol, methanol and water extracts of the powdered plants were prepared and a total of fifty-five extracts were tested for their anti-inflammatory and antioxidant activities. The anti-inflammatory activity of extracts was evaluated via the 15-lipoxygenase (15-LOX) inhibitory and the nitric oxide (NO) inhibition assays using lipopolysaccharide (LPS)-activated RAW 264.7 murine macrophages. Total flavonoid and total phenolic contents were determined. The antioxidant activity of the extracts was performed using radical scavenging DPPH (2, 2-diphenyl-1-picrylhydrazyl) and electron reducing ABTS (2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) assays. RESULTS The hexane extract of Typha capensis (TC) had good lipoxygenase inhibitory activity with IC50 of 4.65 µg/mL, significantly (p < 0.05) higher than that of the positive control quercetin (IC50 = 24.60). The same extract also had good nitric oxide inhibitory activity with 86% NO inhibition and cell viability of 97% at 50 µg/mL. The TC acetone extract had the best antioxidant activity with IC50 of 7.11 and 1.91 µg/mL respectively in the DPPH and ABTS assays. Following fractionation of the TC plant material, the ethyl acetate fraction had interesting antioxidant activity and the methanol/water (35%) and hexane fractions had good 15-LOX inhibitory activity. The antioxidant and anti-inflammatory activities therefore resided in both polar and more non-polar fractions. CONCLUSION The acetone extract of Typha capensis and its fractions had good anti-inflammatory and antioxidant activities, supporting the medicinal use of this species against inflammation. Other species including Ficus elastica, Carpobrotus edulis, Cotyledon orbiculata and Senna italica also had good activity worthy of further investigation.
Collapse
Affiliation(s)
- Moise Ondua
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
| | - Emmanuel Mfotie Njoya
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
| | - Muna Ali Abdalla
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
| | - Lyndy J McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa.
| |
Collapse
|
22
|
Elzahhar PA, Alaaeddine R, Ibrahim TM, Nassra R, Ismail A, Chua BS, Frkic RL, Bruning JB, Wallner N, Knape T, von Knethen A, Labib H, El-Yazbi AF, Belal AS. Shooting three inflammatory targets with a single bullet: Novel multi-targeting anti-inflammatory glitazones. Eur J Med Chem 2019; 167:562-582. [DOI: 10.1016/j.ejmech.2019.02.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 02/04/2019] [Accepted: 02/10/2019] [Indexed: 12/29/2022]
|
23
|
Bose B, Tripathy D, Chatterjee A, Tandon P, Kumaria S. Secondary metabolite profiling, cytotoxicity, anti-inflammatory potential and in vitro inhibitory activities of Nardostachys jatamansi on key enzymes linked to hyperglycemia, hypertension and cognitive disorders. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 55:58-69. [PMID: 30668444 DOI: 10.1016/j.phymed.2018.08.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 08/06/2018] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nardostachys jatamansi (D. Don) DC., 'Spikenard' or 'Jatamansi', a highly valued, aromatic herb from alpine Himalayas has a long history of use as ethnomedicine and dietary supplements in Ayurveda, Unani and Chinese system of medicine since Vedic ages (1000-800 BC). In Ayurveda and traditional system of medicine, the species is used as stimulant, sedative, brain tonic or mind rejuvenator, antidiabetic, cardio tonic, and in the treatment of various neurological disorders such as insomnia, epilepsy, hysteria, anxiety and depression. It is considered as Sattvic herb in Ayurveda and is now commercially marketed either as single or poly-herbal formulations by many companies in national and international markets. AIM OF THE STUDY The species has become threatened in its natural habitats due to over exploitation and illegal trade of its rhizomes for drug preparation in herbal and pharmaceutical industries. Considering the increasing demand and tremendous medicinal importance of this threatened plant species, a detailed study was undertaken to evaluate its antioxidant potential, secondary metabolite profiling, cytotoxicity, anti-inflammatory potential and in vitro enzyme inhibitory activities on key enzymes linked to hyperglycemia, hypertension and cognitive disorders in different plant parts of wild and in vitro-raised plants with respect to different solvent systems for its sustainable utilization. MATERIALS AND METHODS Anti-cholinesterase activity of leaves and rhizome of wild and cultured plant extracts was investigated against both acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) enzymes. In vitro anti-hyperglycemic (α-amylase and PTP1B), anti-hypertensive (angiotensin-converting enzyme), anti-tyrosinase and anti-inflammatory potential (5-lipoxygenase and hyaluronidase) of different plant parts of wild and in vitro-raised plants with respect to different solvent systems were also evaluated. In vitro cytotoxic effect of rootstock extracts of wild and in vitro-derived plants were against cancer (HCT-116, MCF-7 and OE33) and two normal (HEK and MEF) cell lines. Secondary metabolite profiling of rhizome segments of wild and in vitro-derived plants was carried out by quantitative gas chromatography-mass spectrometry (GC-MS). RESULTS In vitro-raised plantlets showed comparative higher yield of various secondary metabolites with a significantly high antioxidant activity as compared to the wild plants. Methanolic rootstock extracts of both wild and in vitro-derived plants of N. jatamansi exhibited significant AChE (IC50 36.46 ± 2.1 and 31.18 ± 2.6 µg/ml, respectively) and BuChE (IC50 64.6 ± 3.5 and 60.12 ± 3.6 µg/ml, respectively) inhibitory potential as compared to standard inhibitor galanthamine (IC50 0.94 ± 0.03 and 4.45 ± 0.5 µg/ml). Methanolic rootstock extract of in vitro-derived plants showed significant α-amylase (IC50 90.69 ± 2.1 µg/ml), PTP1B (IC50 24.56 ± 0.8 µg/ml), angiotensin-converting enzyme (IC50 42.5 ± 3.6 µg/ml) and tyrosinase (IC50 168.12 ± 3.6 µg/ml) inhibitory potential as compared to standard acarbose (IC50 52.36 ± 3.1 µg/ml), ursolic acid (IC50 5.24 ± 0.8 µg/ml), captopril (IC50 32.36 ± 2.5 µg/ml) and kojic acid (IC50 = 54.44 ± 2.3 µg/ml). Both the methanolic rootstock and leaf extracts of tissue culture-derived plants exhibited promising anti-5-LOX and anti-hyaluronidase activities against the known inhibitor of 5-LOX and hyaluronidase. Furthermore, methanolic rootstock extracts of both wild and in vitro-derived plants exhibited promising cytotoxic effects to HCT-116, MCF-7 and OE33 cell lines as compared to the normal HEK and MEF after 12 h of treatment. Secondary metabolite profiling of wild and in vitro-derived plants by quantitative GC-MS analysis revealed the presence of different classes of terpenoids and phenolic acids might be responsible for its effective biological activities. CONCLUSION In vitro-derived plants revealed a substantial anti-cholinesterases, anti-hyperglycemic anti-inflammatory, anti-hypertensive and anti-tyrosinase potential with higher yield of various bioactive metabolites and significantly higher antioxidant activity which substantially explain medicinal importance of N. jatamansi in traditional medicine, used for centuries in different Ayurvedic formulations. The present findings suggest that cultured plants could be a promising alternative for the production of bioactive metabolites with comparative biological activities to the wild plants.
Collapse
Affiliation(s)
- Biswajit Bose
- Plant Biotechnology Laboratory, Department of Botany, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Debabrata Tripathy
- Molecular Genetics Laboratory, Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Anupam Chatterjee
- Molecular Genetics Laboratory, Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Pramod Tandon
- Plant Biotechnology Laboratory, Department of Botany, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Suman Kumaria
- Plant Biotechnology Laboratory, Department of Botany, North-Eastern Hill University, Shillong 793022, Meghalaya, India.
| |
Collapse
|
24
|
Impact of Interactions between Ferulic and Chlorogenic Acids on Enzymatic and Non-Enzymatic Lipids Oxidation: An Example of Bread Enriched with Green Coffee Flour. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030568] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This study investigated the activity, mode of inhibition, and interactions between lipoxygenase (LOX) inhibitors and compounds able to inhibit lipids oxidation (LPO) derived from green coffee beans (GCBs), wholemeal wheat flour (WF), and bread enriched with GCB, in comparison with pure chemical standards of the main active components—ferulic (FA) and chlorogenic acids (CGA). Both GCB and WF contain potentially bioaccessible and bioavailable LPO inhibitors acting synergistically. Both FA and CGA presented nearly additive interaction. Potentially bioaccessible LOX inhibitors from GCB and WF acted synergistically, whereas moderate antagonism was found for potentially bioavailable compounds. The activity of CGA and FA was quite similar (EC50 = 18.56 and 22.36 g DW/ml, respectively) and synergistic action between these components was found. The LPO activity of functional breads was positively correlated with the percentage of GCB (R2 = 0.98). Ferulic acid and CGA acted as competitive LOX inhibitors, whereas potentially bioaccessible compounds from bread enriched with GCB demonstrated an uncompetitive mode of action. Green coffee beans, WF, and the proposed functional product could be helpful in dietary therapy and prevention of so-called lifestyle disorders related with the lipid metabolism. Moreover, this paper highlights the need to study the interactions between the active ingredients of newly designed functional products.
Collapse
|
25
|
Gulumian M, Yahaya ES, Steenkamp V. African Herbal Remedies with Antioxidant Activity: A Potential Resource Base for Wound Treatment. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:4089541. [PMID: 30595712 PMCID: PMC6282146 DOI: 10.1155/2018/4089541] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 10/23/2018] [Accepted: 11/07/2018] [Indexed: 12/21/2022]
Abstract
The use of traditional herbal remedies as alternative medicine plays an important role in Africa since it forms part of primary health care for treatment of various medical conditions, including wounds. Although physiological levels of free radicals are essential to the healing process, they are known to partly contribute to wound chronicity when in excess. Consequently, antioxidant therapy has been shown to facilitate healing of such wounds. Also, a growing body of evidence suggests that, at least, part of the therapeutic value of herbals may be explained by their antioxidant activity. This paper reviews African herbal remedies with antioxidant activity with the aim of indicating potential resources for wound treatment. Firstly, herbals with identified antioxidant compounds and, secondly, herbals with proven antioxidant activity, but where the compound(s) responsible for the activity has not yet been identified, are listed. In the latter case it has been attempted to ascribe the activity to a compound known to be present in the plant family and/or species, where related activity has previously been documented for another genus of the species. Also, the tests employed to assess antioxidant activity and the potential caveats thereof during assessment are briefly commented on.
Collapse
Affiliation(s)
- Mary Gulumian
- National Institute for Occupational Health, Johannesburg, South Africa
- Haematology and Molecular Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - Ewura Seidu Yahaya
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- Department of Pharmacology, University of Cape Coast, Cape Coast, Ghana
| | - Vanessa Steenkamp
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| |
Collapse
|
26
|
Napagoda M, Gerstmeier J, Butschek H, Lorenz S, Kanatiwela D, Qader M, Nagahawatte A, De Soyza S, Wijayaratne GB, Svatoš A, Jayasinghe L, Koeberle A, Werz O. Lipophilic extracts of Leucas zeylanica, a multi-purpose medicinal plant in the tropics, inhibit key enzymes involved in inflammation and gout. JOURNAL OF ETHNOPHARMACOLOGY 2018; 224:474-481. [PMID: 29727733 DOI: 10.1016/j.jep.2018.04.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/24/2018] [Accepted: 04/27/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leucas zeylanica (L.) W.T. Aiton is a popular, multi-purpose medicinal plant in Sri Lanka but the pharmacological potential and the chemical profile have not been systematically investigated to understand and rationalize the reported ethnobotanical significance. AIM OF THE STUDY The present study was undertaken to scientifically validate the traditional usage of this plant for the treatment of inflammatory conditions, gout and microbial infections. Inhibition of 5-lipoxygenase (5-LO), microsomal prostaglandin E2 synthase (mPGES)-1 and xanthine oxidase (XO) by different extracts of L. zeylanica was investigated to determine the anti-inflammatory and anti-gout activity, respectively. The antibacterial and antifungal activities were also studied and the relevant constituents in the bioactive extracts were tentatively identified. MATERIALS AND METHODS Cell-free and/or cell-based assays were employed in order to investigate the effects of the extracts against the activity of human 5-LO, mPGES-1 and XO as well as to assess antioxidant properties. The antibacterial activity of the extracts was determined by the broth micro-dilution method against Gram positive and Gram negative bacteria including methicillin-resistant Staphylococcus aureus while the agar dilution method was employed to determine the anti-Candida activity. Gas chromatography coupled to mass spectrometric (GC-MS) analysis enabled the characterization of secondary metabolites in the extracts. RESULTS The dichloromethane extract of L. zeylanica efficiently inhibited 5-LO activity in stimulated human neutrophils (IC50 = 5.5 µg/mL) and isolated human 5-LO and mPGES-1 (IC50 = 2.2 and 0.4 µg/mL). Potent inhibition of XO was observed by the same extract (IC50 = 47.5 μg/mL), which is the first report of XO-inhibitory activity of a Sri Lankan medicinal plant. Interestingly, significant radical scavenging activity was not observed by this extract. Only the n-hexane extract exhibited antibacterial activity against Staphylococcus aureus and Staphylococcus saprophyticus with a MIC of 250 µg/mL while the anti-Candida activity was moderate. GC-MS analysis revealed the presence of phytosterols, fatty acids, sesquiterpenes, diterpenes and several other types of secondary metabolites. CONCLUSIONS Potent inhibition of 5-LO, mPGES-1 and XO rationalizes the ethnopharmacological use of L. zeylanica as anti-inflammatory and anti-gout remedy. Interestingly, the antimicrobial activities were not prominent, despite its wide utility as an antimicrobial medication.
Collapse
Affiliation(s)
- Mayuri Napagoda
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka.
| | - Jana Gerstmeier
- Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Hannah Butschek
- Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Sybille Lorenz
- Research Group Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, D-07745 Jena, Germany.
| | - Dinusha Kanatiwela
- National Institute of Fundamental Studies, Hantana Road, Kandy 20000, Sri Lanka.
| | - Mallique Qader
- National Institute of Fundamental Studies, Hantana Road, Kandy 20000, Sri Lanka.
| | - Ajith Nagahawatte
- Department of Microbiology, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka.
| | - Sudhara De Soyza
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka.
| | | | - Aleš Svatoš
- Research Group Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, D-07745 Jena, Germany.
| | - Lalith Jayasinghe
- National Institute of Fundamental Studies, Hantana Road, Kandy 20000, Sri Lanka.
| | - Andreas Koeberle
- Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Oliver Werz
- Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| |
Collapse
|
27
|
Perera HDSM, Samarasekera JKRR, Handunnetti SM, Weerasena OVDSJ, Weeratunga HD, Jabeen A, Choudhary MI. In vitro pro-inflammatory enzyme inhibition and anti-oxidant potential of selected Sri Lankan medicinal plants. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:271. [PMID: 30285710 PMCID: PMC6169004 DOI: 10.1186/s12906-018-2335-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 09/24/2018] [Indexed: 12/23/2022]
Abstract
Background The extracts of the ten selected Sri Lankan medicinal plants have been traditionally used in the treatment of inflammatory mediated diseases. The extracts were investigated for anti-inflammatory and anti-oxidant potential in vitro to identify bio-active extracts for further chemical characterization. Methods In vitro anti-inflammatory activities of total ethanol extracts were investigated measuring the inhibitory activities of four pro-inflammatory enzymes, arachidonate-5- lipoxygenase (A5-LOX), hyaluronidase (HYL), xanthine oxidase (XO) and inducible nitric oxide (iNO) synthase. Cytotoxicity of extracts were determined by MTT assay. Oxidative burst inhibition (OBI) on human whole blood (WB) and isolated polymorphoneutrophils (PMNs) was carried out for a selected bio-active extract. Anti- oxidant activities of the extracts were determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, ferric reducing antioxidant power (FRAP), ferrous ion chelation (FIC) and oxygen radical absorbance capacity (ORAC) assays. Total polyphenol and total Flavonoid contents of the extracts were also determined. The most active plant extract was analysed using Gas chromatography-Mass spectrometry (GC-MS) and High Performance Liquid Chromatography (HPLC). Results The ethanol bark extract of Flacourtia indica showed the highest A5-LOX (IC50: 22.75 ± 1.94 g/mL), XO (70.46 ± 0.18%; 250 μg/mL) and iNOs inhibitory activities on LPS- activated raw 264.7 macrophage cells (38.07 ± 0.93%; 500 μg/mL) with promising OBI both on WB (IC50: 47.64 2.32 μg/mL) and PMNs (IC50: 5.02 0.38 μg/mL). The highest HYL inhibitory activity was showed by the leaf extracts of Barathranthus nodiflorus (42.31 ± 2.00%; 500 μg/mL) and Diospyros ebenum (41.60 ± 1.18%; 500 μg/mL). The bark and leaf extracts of Callophyllum innophyllum (IC50: 6.99 ± 0.02 μg/mL) and Symplocus cochinchinesis (IC50: 9.85 ± 0.28 μg/mL) showed promising DPPH free radical scavenging activities. The GC-MS analysis of ethanol bark extract of F. indica showed the presence of two major bio-active compounds linoleic acid ethyl ester and hexadecanoic acid, ethyl ester (> 2% peak area). The HPLC analysis showed the presence polyphenolic compounds. Conclusion The ethanol bark extract of F. indica can be identified as a potential candidate for the development of anti-inflammatory agents, which deserves further investigations. The bio-active plant extracts may be effectively used in the applications of cosmetic and health care industry.
Collapse
|
28
|
The Traditional Medicinal Plants Cuphea calophylla, Tibouchina kingii, and Pseudelephantopus spiralis Attenuate Inflammatory and Oxidative Mediators. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:1953726. [PMID: 29849694 PMCID: PMC5941728 DOI: 10.1155/2018/1953726] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 04/05/2018] [Indexed: 01/28/2023]
Abstract
Aerial parts of Cuphea calophylla, Tibouchina kingii, and Pseudelephantopus spiralis have been used in Colombian traditional medicine for inflammation. However, the underlying mechanisms that could explain the anti-inflammatory actions remain unknown. This study aimed to elucidate the anti-inflammatory and cytoprotective effects of hydroalcoholic extracts from C. calophylla (HECC), T. kingii (HETK), and P. spiralis (HEPS) in LPS-stimulated THP-1 macrophages. Reactive oxygen species (ROS), nitric oxide (NO), and malondialdehyde (MDA) were monitored as inflammatory and oxidative markers. The inhibition of lipoxygenase (LOX) and cyclooxygenase (COX) activities in a cell-free system were also investigated. Antioxidant activities were determined using standard in vitro methods. All extracts inhibited the NO, ROS, and MDA levels. HETK showed the highest ROS production inhibition and the highest antioxidant values, whereas HETK and HEPS significantly decreased the cytotoxicity mediated by LPS. The release of MDA was reduced significantly by all extracts. Moreover, the catalytic activity of LOX was inhibited by HECC and HETK. HECC was a more potent reducer of COX-2 activity. All extracts effectively suppressed COX-1 activity. In summary, these results suggest that HECC, HEPS, and HETK possess anti-inflammatory properties. Therefore, these plants could provide a valuable source of natural bioactive compounds for the treatment of inflammatory-related diseases.
Collapse
|
29
|
Lans C, Taylor-Swanson L, Westfall R. Herbal fertility treatments used in North America from colonial times to 1900, and their potential for improving the success rate of assisted reproductive technology. REPRODUCTIVE BIOMEDICINE & SOCIETY ONLINE 2018; 5:60-81. [PMID: 30023440 PMCID: PMC6047296 DOI: 10.1016/j.rbms.2018.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 09/19/2016] [Accepted: 03/12/2018] [Indexed: 06/08/2023]
Abstract
This paper serves to fill a gap in the literature regarding evidence for the use of botanical remedies in the promotion of fertility. It examines the botanical remedies that were used in North America (1492-1900) for all stages of reproduction from preconception to birth, and discusses their potential for future use with present-day infertility treatments. Each medicinal plant discussed in this paper is assessed using an ethnomedicinal methodology that entails examining the published ethnobotanical, phytochemical and pharmacological data. A few clinical trials have shown that there is potential for medicinal plants to improve the success rate of assisted reproductive technology (ART) treatment if used in an integrated manner, similar to the integrated use of traditional Chinese medicine with ART treatment. For example, research has shown that older women who become pregnant have a high miscarriage rate, and this is one area that complementary and alternative medicines can address.
Collapse
Affiliation(s)
- Cheryl Lans
- Institute for Ethnobotany and Zoopharmacognosy, Beek, The Netherlands
| | - Lisa Taylor-Swanson
- College of Nursing University of Utah, Annette Cummings Building, 10 South 2000 East Salt Lake City, UT, USA
| | - Rachel Westfall
- Yukon Bureau of Statistics, Government of Yukon, Yukon, Canada
| |
Collapse
|
30
|
Gousiadou C, Kouskoumvekaki I. Computational Analysis of LOX1 Inhibition Identifies Descriptors Responsible for Binding Selectivity. ACS OMEGA 2018; 3:2261-2272. [PMID: 30023828 PMCID: PMC6044675 DOI: 10.1021/acsomega.7b01622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 02/12/2018] [Indexed: 06/08/2023]
Abstract
Lipoxygenases are a family of cytosolic, peripheral membrane enzymes, which catalyze the hydroperoxidation of polyunsaturated fatty acids and are implicated in the pathogenesis of major human diseases. Over the years, a substantial number of scientific reports have introduced inhibitors active against one or another subtype of the enzyme, but the selectivity issue has proved to be a major challenge for drug design. In the present work, we assembled a dataset of 317 structurally diverse molecules hitherto reported as active against 15S-LOX1, 12S-LOX1, and 15S-LOX2 and identified, using supervised machine learning, a set of structural descriptors responsible for the binding selectivity toward the enzyme 15S-LOX1. We subsequently incorporated these descriptors in the training of QSAR models for LOX1 activity and selectivity. The best performing classifiers are two stacked models that include an ensemble of support vector machine, random forest, and k-nearest neighbor algorithms. These models not only can predict LOX1 activity/inactivity but also can discriminate with high accuracy between molecules that exhibit selective activity toward either one of the isozymes 15S-LOX1 and 12S-LOX1.
Collapse
|
31
|
Surapinit S, Sichaem J, Tip-pyang S. Non-redox Lipoxygenase Inhibitors from Nauclea orientalis. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Eight alkaloids recently isolated from the roots of Nauclea orientalis (L.) L. were obtained to evaluate the lipoxygenase (LOX) inhibitory activity. According to the LOX inhibitory assay, the cis isomer 1 (IC50 39.2±1.1 μM) was more potent than the trans isomer 2 (IC50 52.1±1.5 μM) (P < 0.05). Compound 5 (IC5057.8±1.8 μM) was more potent than 6 (IC50 97.6±3.4 μM), 3 (IC50 112.1±2.6 μM) and 4 (inactive) (P <0.05), respectively. Alkaloid glycosides 7 and 8 were completely inactive in a screening assay. All active indole alkaloids were inactive in DPPH and 13-HPOD scavenging assays at the concentration of 100 μM. Moreover, these compounds did not exhibit the interferential effects on the Fe2+/Fe3+ redox state as indicated by the iron reduction and oxidation assays. The enzyme kinetic study revealed that 1, 2 and 6 inhibited sb-LOX-1 through the mixed inhibition with a set of inhibition constants (K i and K' i) of 9 and 22, 17 and 46, and 16 and 32 μM, respectively. Indole alkaloids 3 and 5 were the uncompetitive and noncompetitive inhibitors with the K i of 24 and 8 μM. These findings undoubtedly demonstrated that these active indole alkaloids were non-redox lipoxygenase inhibitors.
Collapse
Affiliation(s)
- Serm Surapinit
- Unit of Excellent in Bioactive Natural Products, University of Phayao, Phayao 56000, Thailand
- Section of Clinical Chemistry, Department of Medical Technology, Faculty of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand
| | - Jirapast Sichaem
- Department of Chemistry, Faculty of Science and Technology, Thammasat University Lampang Center, Lampang 52190, Thailand
| | - Santi Tip-pyang
- Department of Chemistry, Faculty of Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| |
Collapse
|
32
|
Awakan OJ, Malomo SO, Adejare AA, Igunnu A, Atolani O, Adebayo AH, Owoyele BV. Anti-inflammatory and bronchodilatory constituents of leaf extracts of Anacardium occidentale L. in animal models. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2017; 16:62-70. [PMID: 29397096 DOI: 10.1016/j.joim.2017.12.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 08/05/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Anacardium occidentale L. leaf is useful in the treatment of inflammation and asthma, but the bioactive constituents responsible for these activities have not been characterized. Therefore, this study was aimed at identifying the bioactive constituent(s) of A. occidentale ethanolic leaf extract (AOEL) and its solvent-soluble portions, and evaluating their effects on histamine-induced paw edema and bronchoconstriction. METHODS The bronchodilatory effect was determined by measuring the percentage protection provided by plant extracts in the histamine-induced bronchoconstriction model in guinea pigs. The anti-inflammatory effect of the extracts on histamine-induced paw edema in rats was determined by measuring the increase in paw diameter, after which the percent edema inhibition was calculated. The extracts were analyzed using gas chromatography-mass spectrometry to identify the bioactive constituents. Column chromatography and Fourier transform infrared spectroscopy were used respectively to isolate and characterize the constituents. The bronchodilatory and anti-inflammatory activities of the isolated bioactive constituent were evaluated. RESULTS Histamine induced bronchoconstriction in the guinea pigs and edema in the rat paw. AOEL, hexane-soluble portion of AOEL, ethyl acetate-soluble portion of AOEL, and chloroform-soluble portion of AOEL significantly increased bronchodilatory and anti-inflammatory activities (P < 0.05). Oleamide (9-octadecenamide) was identified as the most abundant compound in the extracts and was isolated. Oleamide significantly increased bronchodilatory and anti-inflammatory activities by 32.97% and 98.41%, respectively (P < 0.05). CONCLUSION These results indicate that oleamide is one of the bioactive constituents responsible for the bronchodilatory and anti-inflammatory activity of A. occidentale leaf, and can therefore be employed in the management of bronchoconstriction and inflammation.
Collapse
Affiliation(s)
- Oluwakemi Josephine Awakan
- Department of Biological Sciences, College of Science and Engineering, Landmark University, PMB 1001, Omu-Aran, Nigeria.
| | - Sylvia Omonirume Malomo
- Department of Biological Sciences, College of Science and Engineering, Landmark University, PMB 1001, Omu-Aran, Nigeria; Department of Biochemistry, Faculty of Life Sciences, University of Ilorin, PMB 1515, Ilorin, Nigeria
| | - Abdullahi Adeyinka Adejare
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine of the University of Lagos, PMB 12003, Lagos, Nigeria
| | - Adedoyin Igunnu
- Department of Biochemistry, Faculty of Life Sciences, University of Ilorin, PMB 1515, Ilorin, Nigeria
| | - Olubunmi Atolani
- Department of Chemistry, Faculty of Physical Sciences, University of Ilorin, PMB 1515, Ilorin, Nigeria
| | - Abiodun Humphrey Adebayo
- Department of Biochemistry, College of Science and Technology, Covenant University, PMB 1023, Ota, Nigeria
| | - Bamidele Victor Owoyele
- Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, University of Ilorin, PMB 1515, Ilorin, Nigeria
| |
Collapse
|
33
|
Sisa M, Dvorakova M, Vanek T. Concise access to primin, miconidin and related natural resorcinols. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
34
|
Anti-Inflammatory Effects of Vitisinol A and Four Other Oligostilbenes from Ampelopsis brevipedunculata var. Hancei. Molecules 2017; 22:molecules22071195. [PMID: 28714918 PMCID: PMC6152071 DOI: 10.3390/molecules22071195] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 07/14/2017] [Accepted: 07/14/2017] [Indexed: 12/17/2022] Open
Abstract
In this study, the cytotoxicities and anti-inflammatory activities of five resveratrol derivatives-vitisinol A, (+)-ε-viniferin, (+)-vitisin A, (-)-vitisin B, and (+)-hopeaphenol-isolated from Ampelopsis brevipedunculata var. hancei were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and lipopolysaccharide (LPS)-stimulated RAW264.7 cells, respectively. The result from MTT assay analysis indicated that vitisinol A has lower cytotoxicity than the other four well-known oligostilbenes. In the presence of vitisinol A (5 μM), the significant reduction of inflammation product (nitric oxide, NO) in LPS-induced RAW264.7 cells was measured using Griess reaction assay. In addition, the under-expressed inflammation factors cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) in LPS-induced RAW264.7 cells monitored by Western blotting simultaneously suggested that vitisinol A has higher anti-inflammatory effect compared with other resveratrol derivatives. Finally, the anti-inflammatory effect of vitisinol A was further demonstrated on 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced ear edema in mice. As a preliminary functional evaluation of natural product, the anti-inflammatory effect of vitisinol A is the first to be examined and reported by this study.
Collapse
|
35
|
Studies on secondary metabolite profiling, anti-inflammatory potential, in vitro photoprotective and skin-aging related enzyme inhibitory activities of Malaxis acuminata, a threatened orchid of nutraceutical importance. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:686-695. [PMID: 28743100 DOI: 10.1016/j.jphotobiol.2017.07.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/07/2017] [Accepted: 07/10/2017] [Indexed: 02/06/2023]
Abstract
Malaxis acuminata D. Don., a small, terrestrial orchid, is endemic to tropical Himalayas at an altitude of 1200-2000m asl. The dried pseudobulbs are important ingredients of century old ayurvedic drug 'Ashtavarga' and a polyherbal immune-booster nutraceutical 'Chyavanprash', known to restore vigour, vitality and youthfulness. Considering tremendous medicinal importance of this threatened orchid species, a detailed study was undertaken for the first time to address its antioxidant potential, secondary metabolite contents and biological activities against skin-aging related enzymes (anti-collagenase, anti-elastase, anti-tyrosinase and xanthine oxidase) and anti-inflammatory activity (5-lipoxygenase and hyaluronidase) in different plant parts of wild and in vitro-derived plants of M. acuminata. Methanolic leaf and stem extracts were further evaluated for in vitro photoprotective activity against UV-B and UV-A radiations. Furthermore, secondary metabolite profiling of various plant parts was carried out by Gas Chromatography Mass Spectrometry (GC-MS). A significantly higher antioxidant potential (DPPH, metal chelating and ABTS•+) with a comparative higher yield of secondary metabolites was observed in in vitro-derived plantlets as compared to the wild plants. Among various solvent systems used, methanolic leaf and stem extracts showed promising inhibitory activity against major skin aging-related enzymes and anti-inflammatory potential. Methanolic leaf and stem extracts of both wild and in vitro-derived plants showed promising photoprotective activity against UV-B and UV-A radiations in vitro with comparatively higher sun protection factor (SPF). Furthermore, GC-MS analysis of methanolic extracts of leaves and stems of wild as well as in vitro-derived plantlets revealed presence of many bioactive metabolites such as, dietary fatty acids, α-hydroxy acids, phenolic acids, sterols, amino acids, sugars and glycosides which substantially explain the use of M. acuminata as one of the potential rejuvenator and anti-aging ingredient in many Ayurvedic formulations.
Collapse
|
36
|
Substituted Caffeic and Ferulic Acid Phenethyl Esters: Synthesis, Leukotrienes Biosynthesis Inhibition, and Cytotoxic Activity. Molecules 2017; 22:molecules22071124. [PMID: 28684707 PMCID: PMC6152019 DOI: 10.3390/molecules22071124] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 07/04/2017] [Accepted: 07/04/2017] [Indexed: 01/09/2023] Open
Abstract
Glioblastoma multiforme (GBM) is an aggressive brain tumor that correlates with short patient survival and for which therapeutic options are limited. Polyphenolic compounds, including caffeic acid phenethyl ester (CAPE, 1a), have been investigated for their anticancer properties in several types of cancer. To further explore these properties in brain cancer cells, a series of caffeic and ferulic acid esters bearing additional oxygens moieties (OH or OCH3) were designed and synthesized. (CAPE, 1a), but not ferulic acid phenethyl ester (FAPE, 1b), displayed substantial cytotoxicity against two glioma cell lines. Some but not all selected compounds derived from both (CAPE, 1a) and (FAPE, 1b) also displayed cytotoxicity. All CAPE-derived compounds were able to significantly inhibit 5-lipoxygenase (5-LO), however FAPE-derived compounds were largely ineffective 5-LO inhibitors. Molecular docking revealed new hydrogen bonds and π-π interactions between the enzyme and some of the investigated compounds. Overall, this work highlights the relevance of exploring polyphenolic compounds in cancer models and provides additional leads in the development of novel therapeutic strategies in gliomas.
Collapse
|
37
|
Michael acceptor containing drugs are a novel class of 5-lipoxygenase inhibitor targeting the surface cysteines C416 and C418. Biochem Pharmacol 2017; 125:55-74. [DOI: 10.1016/j.bcp.2016.11.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/02/2016] [Indexed: 12/22/2022]
|
38
|
Ali S, Nisar M, Shah Z. Production of biologically active oxidized derivatives of finasteride through metabolism by Aspergillus niger culture. PHARMACEUTICAL BIOLOGY 2016; 54:2771-2776. [PMID: 27181333 DOI: 10.1080/13880209.2016.1181658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Among the 4-azasteroids, finasteride is biologically the most important compound having preventive effect against male pattern baldness (MPH) and benign prostatic hyperplasia commonly called enlargement of prostate gland. OBJECTIVE The microbial transformation of finasteride by fungus Aspergillus niger (ATCC 10549) has been investigated to obtain biologically more potent derivatives. MATERIALS AND METHODS Fermentation of finasteride was performed with filamentous fungus Aspergillus niger (ATCC 10549). This transformation resulted in the production of two transformed products, which were purified through column chromatography. In vitro lipoxygenase inhibitory potential was determined by incubating 20 mL of the enzyme with 10 mL of test sample (100 μM) in 0.1 mM (pH 7.0) phosphate buffer for 5 min at 258 °C followed by addition of 10 μL of substrate (linolenic acid) to reaction mixture and measuring the formation of complex spectrophotometrically. RESULTS Structure elucidation of biotransformed metabolites was ascertained through extensive 1D and 2D spectroscopic techniques. This study established the fact that A. niger promoted stereospecific dihydroxylation at C-11 and C-15 of finasteride. The resulting biotransformed metabolites were characterized as 11α-hydroxyfinasteride and 15β-hydroxyfinasteride, respectively. Finasteride along with transformed metabolites were analyzed for their in vitro lipoxygenase (LOX) inhibition assay. Among the tested compounds 15β-hydroxyfinasteride showed good activity with IC50 value 112.56 ± 2.23 μM while inhibitory effect in case of 11α-hydroxyfinasteride was low with IC50 value 186.05 ± 1.34 μM. Standard compound baicalein revealed IC50 value being 22.0 ± 0.05 μM. CONCLUSION The present investigation highlighted the fact that potentially active compound can be produced through the technology of biotransformation.
Collapse
Affiliation(s)
- Sajid Ali
- a Department of Chemistry , Bacha Khan University , Charsadda , Khyber Pakhtunkhwa , Pakistan
| | - Muhammad Nisar
- b Institute of Chemical Sciences, University of Peshawar , Peshawar , Pakistan
| | - Zarbad Shah
- a Department of Chemistry , Bacha Khan University , Charsadda , Khyber Pakhtunkhwa , Pakistan
| |
Collapse
|
39
|
Zhao A, Li L, Li B, Zheng M, Tsao R. Ultrafiltration LC-ESI-MSn screening of 5-lipoxygenase inhibitors from selected Chinese medicinal herbs Saposhnikovia divaricata, Smilax glabra, Pueraria lobata and Carthamus tinctorius. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.04.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
|
40
|
Eshwarappa RSB, Ramachandra YL, Subaramaihha SR, Subbaiah SGP, Austin RS, Dhananjaya BL. Anti-Lipoxygenase Activity of Leaf Gall Extracts of Terminalia chebula (Gaertn.) Retz. (Combretaceae). Pharmacognosy Res 2016; 8:78-82. [PMID: 26941541 PMCID: PMC4753765 DOI: 10.4103/0974-8490.171103] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Lipoxygenase (LOX) inhibitors are the promising therapeutic target for treating a wide spectrum of inflammatory-related diseases such as cancer, asthma, lymphoma, leukemia, and autoimmune disorders. In the present study, the photochemical constituents and the anti-LOX potential of leaf galls of Terminalia chebula are evaluated to exemplify its further potential development as medicine. Extracts of T. chebula galls were tested for anti-LOX activity using linoleic acid as substrate and lipoxidase as an enzyme and also the total content of polyphenols with phytochemical analysis of the extract were determined. The presence of highest total phenolic and flavonoid content of 141 ± 2.2 mg of gallic acid equivalent/g d.w and 125 ± 1.4 mg of quercetin equivalent/g d.w and maximal LOX inhibitory activity (52.67%) at 800 μg/mL concentrations were identified in the ethanolic extracts of leaf galls of T.chebula. The higher LOX inhibitory activity was positively correlated to the high content of total polyphenols/flavonoids. The results of this study confirm the folklore use of T. chebula leaves gall extracts as a natural anti-inflammatory agent and justify its ethnobotanical use. Therefore, the results encourage the use of T. chebula leave gall extracts for medicinal health, functional food, and nutraceuticals applications.
Collapse
Affiliation(s)
- Ravi Shankara Birur Eshwarappa
- Department of Chemistry, School of Graduate Studies, Jain University, Chamrajpete, Bengaluru, Karnataka, India; Research Unit in Vrukshayurveda, A Division of Center for Advanced Studies in Biosciences, Jain University, Chamrajpete, Bengaluru, Karnataka, India; Department of Studies and Research in Biotechnology, Kuvempu University, Shankarghatta, Karnataka, India
| | | | - Sundara Rajan Subaramaihha
- Research Unit in Vrukshayurveda, A Division of Center for Advanced Studies in Biosciences, Jain University, Chamrajpete, Bengaluru, Karnataka, India
| | - Sujan Ganapathy Pasura Subbaiah
- Research Unit in Vrukshayurveda, A Division of Center for Advanced Studies in Biosciences, Jain University, Chamrajpete, Bengaluru, Karnataka, India
| | | | - Bhadrapura Lakkappa Dhananjaya
- Department of Toxinology/Toxicology and Drug Discovery, Center for Emerging Technologies, Jain University, Kanakpura Taluk, Ramanagara, Karnataka, India
| |
Collapse
|
41
|
Gousiadou C, Kouskoumvekaki I. LOX1 inhibition with small molecules. J Mol Graph Model 2016; 63:99-109. [PMID: 26722761 DOI: 10.1016/j.jmgm.2015.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/19/2015] [Accepted: 12/03/2015] [Indexed: 01/13/2023]
Abstract
Lipoxygenases (LOXs) are nonheme, iron-containing dioxygenases that catalyze the dioxygenation of polyunsaturated fatty acids and are widely distributed among plant and animal species. Human LOXs, now identified as key enzymes in the pathogenesis of major disorders, have increasingly drawn the attention as targets and great effort has been made for the discovery and design of suitable inhibitors, to which end both pharmacological and computational methods have been employed. In the present work, using pharmacophore modeling and docking, we attempt to elucidate the inhibition of LOX1 with a new inhibitor, albidoside, an iridoid glucoside isolated from plants of the Scutellaria genus. Through a pharmacophore approach, complementarities between the ligand and the binding site are explored and a plausible mode of binding with the protein is suggested for albidoside.
Collapse
Affiliation(s)
- Chrysoula Gousiadou
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark.
| | - Irene Kouskoumvekaki
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, 2800 Lyngby, Denmark
| |
Collapse
|
42
|
Sahraie-Rad M, Izadyari A, Rakizadeh S, Sharifi-Rad J. Preparation of Strong Antidandruff Shampoo Using Medicinal Plant Extracts: A Clinical Trial and Chronic Dandruff Treatment. Jundishapur J Nat Pharm Prod 2015. [DOI: 10.17795/jjnpp-21517] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
43
|
Chagas-Paula DA, Zhang T, Da Costa FB, Edrada-Ebel R. A Metabolomic Approach to Target Compounds from the Asteraceae Family for Dual COX and LOX Inhibition. Metabolites 2015; 5:404-30. [PMID: 26184333 PMCID: PMC4588803 DOI: 10.3390/metabo5030404] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 06/23/2015] [Accepted: 06/30/2015] [Indexed: 11/16/2022] Open
Abstract
The application of metabolomics in phytochemical analysis is an innovative strategy for targeting active compounds from a complex plant extract. Species of the Asteraceae family are well-known to exhibit potent anti-inflammatory (AI) activity. Dual inhibition of the enzymes COX-1 and 5-LOX is essential for the treatment of several inflammatory diseases, but there is not much investigation reported in the literature for natural products. In this study, 57 leaf extracts (EtOH-H2O 7:3, v/v) from different genera and species of the Asteraceae family were tested against COX-1 and 5-LOX while HPLC-ESI-HRMS analysis of the extracts indicated high diversity in their chemical compositions. Using O2PLS-DA (R2 > 0.92; VIP > 1 and positive Y-correlation values), dual inhibition potential of low-abundance metabolites was determined. The O2PLS-DA results exhibited good validation values (cross-validation = Q2 > 0.7 and external validation = P2 > 0.6) with 0% of false positive predictions. The metabolomic approach determined biomarkers for the required biological activity and detected active compounds in the extracts displaying unique mechanisms of action. In addition, the PCA data also gave insights on the chemotaxonomy of the family Asteraceae across its diverse range of genera and tribes.
Collapse
Affiliation(s)
- Daniela A Chagas-Paula
- University of Strathclyde, the John Arbuthnott Building, 161 Cathedral Street, Glasgow G4 0RE, UK.
- School of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo (USP), Department of Pharmaceutical Sciences, Av. Café s/n, Ribeirão Preto-SP 14040-903, Brazil.
| | - Tong Zhang
- University of Strathclyde, the John Arbuthnott Building, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Fernando B Da Costa
- School of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo (USP), Department of Pharmaceutical Sciences, Av. Café s/n, Ribeirão Preto-SP 14040-903, Brazil.
| | - RuAngelie Edrada-Ebel
- University of Strathclyde, the John Arbuthnott Building, 161 Cathedral Street, Glasgow G4 0RE, UK.
| |
Collapse
|
44
|
Adebayo SA, Dzoyem JP, Shai LJ, Eloff JN. The anti-inflammatory and antioxidant activity of 25 plant species used traditionally to treat pain in southern African. Altern Ther Health Med 2015; 15:159. [PMID: 26014115 PMCID: PMC4443658 DOI: 10.1186/s12906-015-0669-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 05/13/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND Inflammation is a common risk factor in the pathogenesis of conditions such as infections, arthritis, type 2 diabetes mellitus, obesity and cancer. An ethnobotanical survey of medicinal plants used traditionally to treat inflammation and related disorders such as pain, arthritis and stomach aches in southern Africa led to the selection of 25 plant species used in this study. METHODS The antioxidant activities of acetone extracts were determined by measuring the free radical scavenging activity and ferric reducing ability, respectively. The anti-inflammatory activities of the extracts were determined by measuring the inhibitory effect of the extracts on the activities of the pro-inflammatory enzyme, lipoxygenase and inducible nitric oxide synthase. RESULTS Extracts of Peltophorum africanum had good antioxidant activity with IC50 values of 4.67 ± 0.31 μg/mL and 7.71 ± 0.36 μg/mL compared to that of the positive control ascorbic acid (2.92 ± 0.14 μg/mL and 13.57 ± 0.44 μg/mL), using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging and 2,2'-azinobis (3-ethylbenzthiazoline-6-sulphonic acid (ABTS) methods, respectively. The metabolism of linoleic acid to leukotriene derivatives by 15-lipoxygenase (15-LOX) was also inhibited by the crude acetone extracts of Peltophorum africanum (IC50 = 12.42 μg/mL), Zanthoxylum capense (IC50 = 14.92 μg/mL) compared to the positive control quercetin (IC50 = 8.75 μg/mL). There was a poor correlation between the flavonoid content and 15-LOX inhibition by the extracts (R(2) = 0.05), indicating that flavonoids are not involved in LOX inhibition. Extracts of Clausena anisata, at a concentration of 6.25 μg/mL inhibited nitric oxide production by RAW 264.7 macrophage cell lines in vitro by 96 %. The extracts of Zanthoxylum capense were the least cytotoxic (IC50 > 1000 μg/mL) when the extract toxicity was determined against Vero (African green Monkey) kidney cell lines. CONCLUSION Some plant species used traditionally to treat pain have reasonable anti-inflammatory activity and flavonoids are probably not involved in this process.
Collapse
|
45
|
Dzoyem JP, Eloff JN. Anti-inflammatory, anticholinesterase and antioxidant activity of leaf extracts of twelve plants used traditionally to alleviate pain and inflammation in South Africa. JOURNAL OF ETHNOPHARMACOLOGY 2015; 160:194-201. [PMID: 25476488 DOI: 10.1016/j.jep.2014.11.034] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 11/18/2014] [Accepted: 11/21/2014] [Indexed: 05/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Oxidative stress and inflammatory conditions are among the pathological features associated with the central nervous system in Alzheimer׳s disease. Traditionally, medicinal plants have been used to alleviate inflammation, pains and also other symptoms possibly associated with Alzheimer׳s disease. Therefore, the present study was designed to determine the in vitro anti-inflammatory, antioxidant and anticholinesterase activity of twelve South African medicinal plants traditionally used to alleviate pain and inflammation. MATERIALS AND METHODS Nitric oxide (NO) production in LPS-activated RAW 264.7 macrophages and 15-lipoxygenase (LOX) inhibitory assay were used to evaluate the anti-inflammatory activity. Acetylcholinesterase inhibition was assessed by using a modification of the Ellman׳s method. Antioxidant activity, total phenolic and total flavonoids contents were determined using standard in vitro methods. RESULTS The extract of Burkea africana had the highest anti-15-lipoxygenase activity with 85.92% inhibition at 100µg/mL. All the extracts tested inhibited nitric oxide (NO) production in a dose dependant manner in LPS-stimulated RAW 264.7 macrophages. However, extracts from Leucaena leucocephala, Lippia javanica inhibited the production of NO by 97% at a concentration of 25µg/mL. In addition, both Leucaena leucocephala and Englerophytum magaliesmontanum had strong activity against acetylcholinesterase with IC50 values of 118µg/mL and 160µg/mL respectively. Hight levels of phenolics and flavonoids were found in Leucaena leucocephala, Lippia javanica and Burkea africana. The correlation with antioxidant activities was not strong indicating that other metabolites may also be involved in antioxidant activity. CONCLUSIONS The results obtained in this study validate the use of leaf extracts of these plants in South African traditional medicine against inflammation. Extracts of these plants species might be of value in the management of various diseases emerging from oxidative stress and related degenerative disorders.
Collapse
Affiliation(s)
- J P Dzoyem
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, Pretoria, South Africa
| | - J N Eloff
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, Pretoria, South Africa.
| |
Collapse
|
46
|
Chedea VS, Braicu C, Chirilă F, Ogola HJO, Pelmuş RŞ, Călin LG, Socaciu C. Antioxidant/Prooxidant and antibacterial/probacterial effects of a grape seed extract in complex with lipoxygenase. BIOMED RESEARCH INTERNATIONAL 2014; 2014:313684. [PMID: 25313359 PMCID: PMC4181939 DOI: 10.1155/2014/313684] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 07/29/2014] [Indexed: 01/02/2023]
Abstract
In an attempt to determine the antioxidant/prooxidant, antibacterial/probacterial action of flavan-3-ols and procyanidins from grape seeds, pure catechin (CS), and an aqueous grape seed extract (PE), were applied in the absence and presence of pure lipoxygenase (LS) or in extract (LE) to leucocyte culture, Escherichia coli B 41 and Brevibacterium linens, and observed whether there was any effect on lipid peroxidation, cytotoxicity, or growth rate. Short time periods of coincubation of cells with the polyphenols, followed by the exposure to LS and LE, revealed a high level of lipid peroxidation and a prooxidative effect. Longer coincubation and addition of LS and LE resulted in the reversal of the prooxidant action either to antioxidant activity for CS + LS and PE + LS or to the control level for CS + LE and PE + LE. Lipid peroxidation was significantly reduced when cells were exposed to polyphenols over a longer period. Longer exposure of E. coli to CS or PE followed by addition of LS for 3 h resulted in bactericidal activity. Significant stimulatory effect on microbial growth was observed for PE + LS and PE + LE treatments in B. linens, illustrating the potential probacterial activity in B. linens cultures. Lipoxygenase-polyphenols complex formation was found to be responsible for the observed effects.
Collapse
Affiliation(s)
- Veronica Sanda Chedea
- Laboratory of Animal Biology, National Research Development Institute for Animal Biology and Nutrition (IBNA), Calea Bucureşti nr. 1, Baloteşti, 077015 Ilfov, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400 565 Cluj-Napoca, Romania
| | - Flore Chirilă
- Department of Microbiology-Immunology, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj-Napoca, Romania
| | - Henry Joseph Oduor Ogola
- School of Agricultural and Food Sciences, Jaramogi Oginga Odinga University of Science and Technology, P.O. Box 210, Bondo 40601, Kenya
| | - Rodica Ştefania Pelmuş
- Laboratory of Animal Biology, National Research Development Institute for Animal Biology and Nutrition (IBNA), Calea Bucureşti nr. 1, Baloteşti, 077015 Ilfov, Romania
| | - Loredana Georgeta Călin
- Laboratory of Animal Biology, National Research Development Institute for Animal Biology and Nutrition (IBNA), Calea Bucureşti nr. 1, Baloteşti, 077015 Ilfov, Romania
| | - Carmen Socaciu
- Department of Chemistry and Biochemistry, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372 Cluj-Napoca, Romania
| |
Collapse
|
47
|
Zou YF, Ho GTT, Malterud KE, Le NHT, Inngjerdingen KT, Barsett H, Diallo D, Michaelsen TE, Paulsen BS. Enzyme inhibition, antioxidant and immunomodulatory activities, and brine shrimp toxicity of extracts from the root bark, stem bark and leaves of Terminalia macroptera. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:1219-1226. [PMID: 25017373 DOI: 10.1016/j.jep.2014.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 06/05/2014] [Accepted: 07/02/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The root bark, stem bark and leaves of Terminalia macroptera have been traditionally used against a variety of ailments such as wounds, hepatitis, malaria, fever, cough, and diarrhea as well as tuberculosis and skin diseases in African folk medicine. Boiling water extracts of Terminalia macroptera, administered orally, are the most common preparations of this plant used by the traditional healers in Mali. This study aimed to investigate the inhibition of the activities of α-glucosidase, 15-lipoxygenase and xanthine oxidase, DPPH scavenging activity, complement fixation activity and brine shrimp toxicity of different extracts obtained by boiling water extraction (BWE) and by ASE (accelerated solvent extraction) with ethanol, ethanol-water and water as extractants from different plant parts of Terminalia macroptera. MATERIALS AND METHODS 27 different crude extracts were obtained by BWE and ASE from root bark, stem bark and leaves of Terminalia macroptera. The total phenolic and carbohydrate contents, enzyme inhibition activities (α-glucosidase, 15-lipoxygenase and xanthine oxidase), DPPH scavenging activity, complement fixation activity and brine shrimp toxicity of these extracts were evaluated. Principal component analysis (PCA) was applied for total biological activities evaluation. RESULTS Several of the extracts from root bark, stem bark and leaves of Terminalia macroptera obtained by BWE and ASE showed potent enzyme inhibition activities, radical-scavenging properties and complement fixation activities. None of the extracts are toxic against brine shrimp larvae in the test concentration. Based on the results from PCA, the ASE ethanol extracts of root bark and stem bark and the low molecular weight fraction of the 50% ethanol-water extract of leaves showed the highest total biological activities. The boiling water extracts were less active, but the bark extracts showed activity as α-glucosidase inhibitors and radical scavengers, the leaf extract being less active. CONCLUSION The observed enzyme inhibition activities, radical scavenging properties and complement fixation activities may explain some of the traditional uses of this medicinal tree, such as in wound healing and against diabetes.
Collapse
Affiliation(s)
- Yuan-Feng Zou
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway.
| | - Giang Thanh Thi Ho
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Karl Egil Malterud
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Nhat Hao Tran Le
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Kari Tvete Inngjerdingen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Hilde Barsett
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Drissa Diallo
- Department of Traditional Medicine, BP 1746, Bamako, Mali
| | - Terje Einar Michaelsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Berit Smestad Paulsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| |
Collapse
|
48
|
Pham AT, Malterud KE, Paulsen BS, Diallo D, Wangensteen H. α-Glucosidase inhibition, 15-lipoxygenase inhibition, and brine shrimp toxicity of extracts and isolated compounds from Terminalia macroptera leaves. PHARMACEUTICAL BIOLOGY 2014; 52:1166-1169. [PMID: 24635511 DOI: 10.3109/13880209.2014.880486] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
CONTEXT Terminalia macroptera Guill. & Perr. (Combretaceae), a tree that grows in West Africa, has been used in traditional medicine against a variety of diseases such as hepatitis, gonorrhea, skin diseases, and diabetes. OBJECTIVE To investigate enzyme inhibitory activity against α-glucosidase and 15-lipoxygenase (15-LO) and toxicity against brine shrimp of extracts and compounds from T. macroptera leaves. MATERIALS AND METHODS Methanol extract, ethyl acetate, and butanol extracts obtained from the methanol extract, six isolated polyphenols (chebulagic acid, chebulic acid trimethyl ester, corilagin, methyl gallate, narcissin, and rutin), and shikimic acid were evaluated for enzyme inhibition and toxicity. RESULTS In enzyme inhibition assays, all extracts showed high or very high activity. Chebulagic acid showed an IC50 value of 0.05 µM towards α-glucosidase and 24.9 ± 0.4 µM towards 15-LO, in contrast to positive controls (acarbose: IC50 201 ± 28 µM towards α-glucosidase, quercetin: 93 ± 3 µM towards 15-LO). Corilagin and narcissin were good 15-LO and α-glucosidase inhibitors, as well, while shikimic acid, methyl gallate, and chebulic acid trimethyl ester were less active or inactive. Rutin was a good α-glucosidase inhibitor (IC50 ca. 3 µM), but less active towards 15-LO. None of the extracts or the isolated compounds seemed to be very toxic in the brine shrimp assay compared with the positive control podophyllotoxin. CONCLUSION Inhibition of α-glucosidase in the gastrointestinal tract may be a rationale for the medicinal use of T. macroptera leaves against diabetes in traditional medicine in Mali. The plant extracts and its constituents show strong inhibition of the peroxidative enzyme 15-LO.
Collapse
Affiliation(s)
- Anh Thu Pham
- Section of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo , Blindern, Oslo , Norway and
| | | | | | | | | |
Collapse
|
49
|
Zelová H, Hanáková Z, Čermáková Z, Šmejkal K, Dalĺ Acqua S, Babula P, Cvačka J, Hošek J. Evaluation of anti-inflammatory activity of prenylated substances isolated from Morus alba and Morus nigra. JOURNAL OF NATURAL PRODUCTS 2014; 77:1297-303. [PMID: 24901948 DOI: 10.1021/np401025f] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Chromatographic separation of root extracts of Morus alba and M. nigra led to the identification of the 2-arylbenzofurans moracin C (1), mulberrofuran Y (2), and mulberrofuran H (3), and the prenylated flavonoids kuwanon E (4), kuwanon C (5), sanggenon H (6), cudraflavone B (7), and morusinol (8), and the Diels-Alder adducts soroceal (9), and sanggenon E (10). The cytotoxicity and their antiphlogistic activity, determined as the attenuation of the secretion of TNF-α and IL-1β and the inhibition of NF-κB nuclear translocation in LPS-stimulated macrophages, were evaluated for compounds 1-10.
Collapse
Affiliation(s)
- Hana Zelová
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno , CZ-612 42 Brno, Czech Republic
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Napagoda M, Gerstmeier J, Koeberle A, Wesely S, Popella S, Lorenz S, Scheubert K, Böcker S, Svatoš A, Werz O. Munronia pinnata (Wall.) Theob.: unveiling phytochemistry and dual inhibition of 5-lipoxygenase and microsomal prostaglandin E2 synthase (mPGES)-1. JOURNAL OF ETHNOPHARMACOLOGY 2014; 151:882-890. [PMID: 24315851 DOI: 10.1016/j.jep.2013.11.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/20/2013] [Accepted: 11/27/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Preparations from Munronia pinnata (Wall.) Theob. are extensively used in traditional medicine in Sri Lanka for the treatment of inflammatory conditions. However, neither the pharmacological features nor the phytochemistry of this plant are explored in order to understand and rationalize the reported ethnobotanical significance. As 5-lipoxygenase (5-LO) and microsomal prostaglandin E2 synthase (mPGES)-1 are crucial enzymes in inflammatory disorders, we evaluated their inhibition by M. pinnata extracts and studied the chemical profile of the plant for the identification of relevant constituents. MATERIALS AND METHODS Cell-free and cell-based assays were employed in order to investigate the suppression of 5-LO and mPGES-1 activity. Cell viability, radical scavenger activities, and inhibition of reactive oxygen species formation (ROS) in neutrophils were studied to assess cytotoxic and antioxidant effects. Gas and liquid chromatography coupled to mass spectrometric analysis enabled the characterization of secondary metabolites. RESULTS The n-hexane extract of M. pinnata efficiently suppressed 5-LO activity in stimulated human neutrophils (IC50 =8.7µg/ml) and potently inhibited isolated human recombinant 5-LO (IC50 =0.48µg/ml) and mPGES-1 (IC50 =1.0µg/ml). In contrast, no significant radical scavenging activity or suppression of ROS formation was observed, and neutrophil viability was unaffected. The phytochemistry of the plant was unveiled for the first time and phytosterols, fatty acids, sesquiterpenes and several other types of secondary metabolites were identified. CONCLUSIONS Together, potent inhibition of 5-LO and mPGES-1 activity, without concomitant antioxidant activity and cytotoxic effects, rationalizes the ethnopharmacological use of M. pinnata as anti-inflammatory remedy. Detailed chromatographic/mass spectrometric analysis reveals discrete chemical structures of relevant constituents.
Collapse
Affiliation(s)
- Mayuri Napagoda
- Research Group Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745 Jena, Germany
| | - Jana Gerstmeier
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743 Jena, Germany
| | - Andreas Koeberle
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743 Jena, Germany
| | - Sandra Wesely
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743 Jena, Germany
| | - Sven Popella
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743 Jena, Germany
| | - Sybille Lorenz
- Research Group Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745 Jena, Germany
| | - Kerstin Scheubert
- Chair for Bioinformatics, Friedrich-Schiller-University Jena, Ernst-Abbe-Platz 2, 07743 Jena, Germany
| | - Sebastian Böcker
- Chair for Bioinformatics, Friedrich-Schiller-University Jena, Ernst-Abbe-Platz 2, 07743 Jena, Germany
| | - Aleš Svatoš
- Research Group Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745 Jena, Germany.
| | - Oliver Werz
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743 Jena, Germany.
| |
Collapse
|