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Yıldırım A, Şen A, Bitiş L. Anti-inflammatory compounds and a new sesquiterpene lactone from Centaurea gabrieljanae Greuter. Nat Prod Res 2024:1-11. [PMID: 38907635 DOI: 10.1080/14786419.2024.2364251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 05/30/2024] [Indexed: 06/24/2024]
Abstract
The traditional use of Centaurea spp. for anti-inflammatory purposes is widespread among the people in Turkiye. For this, the methanol extract of Centaurea gabrieljanae and sub-fractions of the methanol extract were tested for anti-inflammatory activity using 5-LOX, while their antioxidant activities, total phenol, and total flavonoid contents were also examined. The ethyl acetate fraction exhibited potent anti-inflammatory activity (IC50 = 3.864 ± 0.9 µg/ml), from which five known compounds (astragalin, picein, p-hydroxy benzoic acid, 3,4-dimethoxy-cinnamic acid, 4-hydroxybenzoic acid 4-O-β-glucopyranoside) and a new sesquiterpene lactone named Pterochlorin were obtained. Pterochlorin showed potent anti-inflammatory activity with a value of IC50 12.71 ± 0.7 µg/ml compared to standard indomethacin. Similarly, astragalin was found to be strong (IC50 = 18.23 µg/ml). In addition, 4-hydroxybenzoic acid 4-O-β-glucopyranoside was isolated for the first time in Centaurea species, and its anti-inflammatory activity was tested. This study may be a guide for the discovery of a new anti-inflammatory drug derived from natural sources.
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Affiliation(s)
| | - Ali Şen
- Department of Pharmacognosy, Marmara University, İstanbul, Maltepe, Turkiye
| | - Leyla Bitiş
- Department of Pharmacognosy, Marmara University, İstanbul, Maltepe, Turkiye
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Ikram M, Shah I, Hussain H, Mughal EU, Naeem N, Sadiq A, Nazir Y, Ali Shah SW, Zahoor M, Ullah R, Ali EA, Umar MN. Synthesis, molecular docking evaluation for LOX and COX-2 inhibition and determination of in-vivo analgesic potentials of aurone derivatives. Heliyon 2024; 10:e29658. [PMID: 38694111 PMCID: PMC11058299 DOI: 10.1016/j.heliyon.2024.e29658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 05/03/2024] Open
Abstract
In the current study, seven (7) aurone derivatives (ADs) were synthesized and employed to in-vitro LOX and COX-2 assays, in-vivo models of acetic acid-induced mice writhing, formalin-induced mice paw licking and tail immersion test to evaluate their analgesic potential at the doses of 10 mg and 20 mg/kg body weight. Molecular docking was performed to know the active binding site at both LOX and COX-2 as compared to standard drugs. Among the ADs, 2-(3,4-dimethoxybenzylidene)benzofuran-3(2H)-one (WE-4)possessed optimal LOX and COX-2 inhibitory strength (IC50=0.30 μM and 0.22 μM) as compared to standard (ZileutonIC50 = 0.08 μM, CelecoxibIC50 = 0.05 μM). Similarly in various pain models compound WE-4 showed significantly (p < 0.05) highest percent analgesic potency as compared to control at a dose of 20 mg/kg i.e. 77.60 % analgesic effect in acetic acid model, 49.97 % (in Phase-1) and 70.93 % (inPhase-2) analgesic effect in formalin pain model and 74.71 % analgesic response in tail immersion model. By the administration of Naloxone, the tail flicking latencies were reversed (antagonized) in all treatments. The WE-4 (at 10 mg/kg and 20 mg/kg) was antagonized after 90 min from 11.23 ± 0.93 and 13.41 ± 1.21 to 5.30 ± 0.48 and 4.80 ± 0.61 respectively as compared to standard Tramadol (from 17.74 ± 1.33 to 3.70 ± 0.48), showing the opiodergic receptor involvement. The molecular docking study of ADs revealed that WE-4 had a higher affinity for LOX and COX-2 with docking scores of -4.324 and -5.843 respectively. As a whole, among the tested ADs, compound WE-4 demonstrated excellent analgesic effects that may have been caused by inhibiting the LOX and COX-2 pathways.
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Affiliation(s)
- Muhammad Ikram
- Department of Pharmacy, Abdul Wali Khan University Mardan (AWKUM), Mardan, 23390, Pakistan
| | - Ismail Shah
- Department of Pharmacy, Abdul Wali Khan University Mardan (AWKUM), Mardan, 23390, Pakistan
| | - Haya Hussain
- Department of Pharmacy, Shaheed Benazir Bhutto University Sheringal, Dir (Upper) 18000, Khyber Pakhtunkhwa, Pakistan
| | | | - Nafeesa Naeem
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan
| | - Amina Sadiq
- Department of Chemistry, Govt. College Women University, Sialkot, 51300, Pakistan
| | - Yasir Nazir
- Department of Chemistry, University of Sialkot, Sialkot, 51300, Pakistan
| | - Syed Wadood Ali Shah
- Department of Pharmacy, University of Malakand, Chakdara, Chakdara 18800, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Zahoor
- Department of Biochemistry, University of Malakand, Chakdara, Dir Lower, KPK, 18800, Pakistan
| | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Essam A. Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Hemavathi KN, Skariyachan S, Raju R, Keshava Prasad TS, Abhinand CS. Computational screening of potential anti-inflammatory leads from Jeevaneeya Rasayana plants targeting COX-2 and 5- LOX by molecular docking and dynamic simulation approaches. Comput Biol Med 2024; 171:108164. [PMID: 38412690 DOI: 10.1016/j.compbiomed.2024.108164] [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: 11/22/2023] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/29/2024]
Abstract
Inflammation plays a pivotal role in various pathological processes, ranging from routine injuries and infections to cancer. Cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX) are two major enzymes involved in the formation of lipid mediators of inflammation, such as prostaglandins and leukotrienes, through the arachidonic acid pathway. Despite the frequent use of nonsteroidal anti-inflammatory drugs for managing inflammatory disorders by inhibiting these enzymes, there is a wide spectrum of adverse effects linked to their usage. Jeevaneeya Rasayana (JR), a polyherbal formulation traditionally used in India, is renowned for its anti-inflammatory properties. The present study aimed to identify the potential phytocompounds in JR plants against COX-2 and 5-LOX, utilizing molecular docking and dynamic simulations. Among the 429 identified phytocompounds retrieved from publicly available data sources, Terrestribisamide and 1-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine have shown potential binding affinity and favorable interactions with COX-2 and 5-LOX arachidonic acid binding sites. The physicochemical properties and ADMET profiles of these compounds determined their drug-likeness and pharmacokinetics features. Additional validation using molecular dynamics simulations, SASA, Rg, and MM-PBSA binding energy calculations affirmed the stability of the complex formed between those compounds with target proteins. Together, the study identified the effectual binding potential of those bioactive compounds against COX-2 and 5-LOX, providing a viable approach for the development of effective anti-inflammatory medications.
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Affiliation(s)
| | - Sinosh Skariyachan
- Department of Microbiology, St. Pius X College, Rajapuram, Kasaragod, India
| | - Rajesh Raju
- Center for Integrative Omics Data Science, Yenepoya (Deemed to be University), Mangalore, India
| | | | - Chandran S Abhinand
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India.
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La Basy L, Hertiani T, Murwanti R, Damayanti E. Investigation of Cox-2 inhibition of Laportea decumana (Roxb). Wedd extract to support its analgesic potential. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116857. [PMID: 37453622 DOI: 10.1016/j.jep.2023.116857] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/19/2023] [Accepted: 06/26/2023] [Indexed: 07/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Itchy leaves Laportea decumana (Roxb). Wedd is an indigenous plant in Maluku, Indonesia, and is used traditionally to treat complaints such as fatigue and joint and muscle pains. AIM OF THE STUDY To provide scientific proof of the analgesic effect of L. decumana ethanolic extract tested in in vivo assays while investigating its bioactive phytochemicals using liquid chromatography tandem high-resolution mass spectrometry (LC-HRMS) profiling and Cox-2 inhibition assay. MATERIALS AND METHODS To investigate the analgesic activity of the ethanolic extract, assays were conducted on male mice Balb/c strain by chemical induction using acetic acid (i.p.) and heat induction (hotplate). Mice were divided into six groups consisting of six mice, i.e., the baseline group; positive control group (paracetamol 80 mg/kg BW); groups treated with extracts in dosages of 100, 200, and 400 mg/kg bodyweight (BW); and negative control group (acetic acid 0.6%, i. p.). The crude extract was partitioned with liquid-liquid fractionation to yield hexane, ethyl acetate, and water fractions. The extract and fraction were assayed for Cox-2 enzyme inhibition, and the chemical profiles were analyzed using untargeted LC-HRMS. RESULTS The analgesic assays revealed the dose-dependent effect of the extracts, of the effect of treatment with 400 mg/kg BW was not significantly different with that of paracetamol (p < 0.05). The ethyl acetate fraction showed IC50 of 19.25 μg/mL on Cox-2 inhibition (IC50 celexocib 18.48 μg/mL). LC-HRMS showed a distinctive profile of the ethyl acetate fraction compared with those in the extract and other fractions. CONCLUSIONS This study presents scientific evidence of the analgesic activity of the L. decumana ethanol extract given orally to experimental animals. Inflammatory inhibition plays a role in the overall analgesic mechanism by Cox-2 inhibition of the extract and all fractions. This finding is also supported by the phytochemical profiles of the extract and fractions, showing the presence of compounds reported elsewhere as anti-inflammatory activity.
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Affiliation(s)
- Lukman La Basy
- Pharmaceutical Sciences Doctoral Study Program, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia; Pharmacy Department, Stikes Maluku Husada, Maluku, 97566, Indonesia.
| | - Triana Hertiani
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia.
| | - Retno Murwanti
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia.
| | - Ema Damayanti
- Research Center for Food Technology and Processing, National Research and Innovation Agency (BRIN), Gunungkidul, 55861, Indonesia.
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Ye J, Cao J, Chen X, Ma J, Li Y, Gao X, Zhang Y, Wang C. Extraction optimisation and compositional characterisation of total flavonoids from the Chinese herb tulip: a natural source of antioxidants and anti-inflammatory agents. Nat Prod Res 2023:1-8. [PMID: 37967021 DOI: 10.1080/14786419.2023.2281000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/03/2023] [Indexed: 11/17/2023]
Abstract
In this study, total flavonoids from the Chinese herb tulip were extracted by ultrasound-assisted extraction (UAE), their main components were analysed and confirmed, and their antioxidant and anti-inflammatory activities were evaluated. The results showed that the extraction rate of total flavonoids from the Chinese herb tulip reached 390.77 ± 3.88 mg·g-1 after optimisation by one-factor test and response surface methodology. 23 compounds were identified in the solution of total flavonoids from the Chinese herb tulip, including 18 flavonoids such as Hyperoside, Quercetin, Astilbin, etc., and the effects of total flavonoids of the Chinese herb tulip (TFT) on ABTS+ radicals, DPPH radicals, and superoxide anion with a good scavenging rate, good total reducing power, and total antioxidant capacity. Secondly, TFT showed good inhibition of 5-lipoxygenase (5-LOX) and cyclooxygenase-2 (COX-2).
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Affiliation(s)
- Jiafeng Ye
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jiamin Cao
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xian Chen
- Eneplus Biotech Co., Ltd, Guangzhou, China
| | - Jingjing Ma
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yangchen Li
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xia Gao
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yurui Zhang
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Chunli Wang
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
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Macharia JM, Mwangi RW, Szabó I, Zand A, Kaposztas Z, Varjas T, Rozmann N, Raposa BL. Regulatory activities of Warbugia ugandensis ethanolic extracts on colorectal cancer-specific genome expression dose-dependently. Biomed Pharmacother 2023; 166:115325. [PMID: 37586118 DOI: 10.1016/j.biopha.2023.115325] [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: 07/09/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/18/2023] Open
Abstract
The evaluation of natural biomass sources is a promising strategy in accelerating the development of novel anti-cancer medications. Our study aimed to evaluate the activity of W. ugandensis ethanolic roots and stems extracts on the expression of five targeted genes (COX-2, CASPS-9, Bcl-xL, Bcl2 and 5-LOX) in colorectal cancer (CRC) cell lines (Caco-2). Plant extracts were obtained using serial exhaustive extraction and dissolved in Dimethyl sulfoxide appropriately for bioassay. Caco-2 cell lines were passaged, treated with plant extracts at varying concentrations and their RNA's isolated for evaluation. Our unique study reports on W. ugandensis as efficient natural inhibitors of CRC growth, by directly linking its phytoconstituents to; downregulation of COX-2, 5-LOX, Bcl-xL, Bcl2 and upregulation of CASPS9 genes dose-dependently. We present W. ugandensis ethanolic roots and stems extracts as promising natural inhibitors for CRC carcinogenesis and recommend in vivo and subsequent clinical trials, with substantial clinical effects postulated. We further suggest studies on identification and characterization of the specific metabolites in W. ugandensis involved in the modulatory mechanisms, resulting to inhibition of CRC growth and possible metastases.
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Affiliation(s)
- John M Macharia
- Doctoral School of Health Sciences, Faculty of Health Science, University of Pẻcs, Pẻcs, Hungary.
| | - Ruth W Mwangi
- Hungarian University of Agriculture and Life Sciences, Institute of Horticultural Sciences, Budapest, Hungary
| | - István Szabó
- University of Pẻcs, Medical School, Department of Public Health Medicine, Pẻcs, Hungary
| | - Afshin Zand
- Doctoral School of Health Sciences, Faculty of Health Science, University of Pẻcs, Pẻcs, Hungary; University of Pẻcs, Medical School, Department of Public Health Medicine, Pẻcs, Hungary
| | | | - Tímea Varjas
- University of Pẻcs, Medical School, Department of Public Health Medicine, Pẻcs, Hungary
| | - Nóra Rozmann
- Doctoral School of Health Sciences, Faculty of Health Science, University of Pẻcs, Pẻcs, Hungary
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7
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Chen S, Wang X, Cheng Y, Gao H, Chen X. A Review of Classification, Biosynthesis, Biological Activities and Potential Applications of Flavonoids. Molecules 2023; 28:4982. [PMID: 37446644 DOI: 10.3390/molecules28134982] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/20/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Flavonoids represent the main class of plant secondary metabolites and occur in the tissues and organs of various plant species. In plants, flavonoids are involved in many biological processes and in response to various environmental stresses. The consumption of flavonoids has been known to reduce the risk of many chronic diseases due to their antioxidant and free radical scavenging properties. In the present review, we summarize the classification, distribution, biosynthesis pathways, and regulatory mechanisms of flavonoids. Moreover, we investigated their biological activities and discuss their applications in food processing and cosmetics, as well as their pharmaceutical and medical uses. Current trends in flavonoid research are also briefly described, including the mining of new functional genes and metabolites through omics research and the engineering of flavonoids using nanotechnology. This review provides a reference for basic and applied research on flavonoid compounds.
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Affiliation(s)
- Shen Chen
- School of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Xiaojing Wang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
| | - Yu Cheng
- School of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Hongsheng Gao
- School of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Xuehao Chen
- School of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
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Rudrapal M, Eltayeb WA, Rakshit G, El-Arabey AA, Khan J, Aldosari SM, Alshehri B, Abdalla M. Dual synergistic inhibition of COX and LOX by potential chemicals from Indian daily spices investigated through detailed computational studies. Sci Rep 2023; 13:8656. [PMID: 37244921 PMCID: PMC10224994 DOI: 10.1038/s41598-023-35161-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/13/2023] [Indexed: 05/29/2023] Open
Abstract
Cyclooxygenase (COX) and Lipoxygenase (LOX) are essential enzymes for arachidonic acid (AA) to eicosanoids conversion. These AA-derived eicosanoids are essential for initiating immunological responses, causing inflammation, and resolving inflammation. Dual COX/5-LOX inhibitors are believed to be promising novel anti-inflammatory agents. They inhibit the synthesis of prostaglandins (PGs) and leukotrienes (LTs), but have no effect on lipoxin formation. This mechanism of combined inhibition circumvents certain limitations for selective COX-2 inhibitors and spares the gastrointestinal mucosa. Natural products, i.e. spice chemicals and herbs, offer an excellent opportunity for drug discovery. They have proven anti-inflammatory properties. However, the potential of a molecule to be a lead/ drug candidate can be much more enhanced if it has the property of inhibition in a dual mechanism. Synergistic activity is always a better option than the molecule's normal biological activity. Herein, we have explored the dual COX/5-LOX inhibition property of the three major potent phytoconsituents (curcumin, capsaicin, and gingerol) from Indian spices using in silico tools and biophysical techniques in a quest to identify their probable inhibitory role as anti-inflammatory agents. Results revealed the dual COX/5-LOX inhibitory potential of curcumin. Gingerol and capsaicin also revealed favorable results as dual COX/5-LOX inhibitors. Our results are substantiated by target similarity studies, molecular docking, molecular dynamics, energy calculations, DFT, and QSAR studies. In experimental inhibitory (in vitro) studies, curcumin exhibited the best dual inhibitory activities against COX-1/2 and 5-LOX enzymes. Capsaicin and gingerol also showed inhibitory potential against both COX and LOX enzymes. In view of the anti-inflammatory potential these spice chemicals, this research could pave the way for more scientific exploration in this area for drug discovery.
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Affiliation(s)
- Mithun Rudrapal
- Department of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, Vignan's Foundation for Science, Technology & Research (Deemed to Be University), Guntur, 522213, India.
| | - Wafa Ali Eltayeb
- Biotechnology Department, Faculty of Science and Technology, Shendi University, Shendi, 414601, Sudan
| | - Gourav Rakshit
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Ranchi, 835215, India
| | - Amr Ahmed El-Arabey
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, 11651, Egypt
| | - Johra Khan
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al'Majmaah, 11952, Saudi Arabia.
- Health and Basic Sciences Research Center, Majmaah University, Al'Majmaah, 11952, Saudi Arabia.
| | - Sahar M Aldosari
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
| | - Bader Alshehri
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
| | - Mohnad Abdalla
- Pediatric Research Institute, Children's Hospital Affiliated to Shandong University, Jinan, 250022, People's Republic of China.
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Semwal P, Rauf A, Olatunde A, Singh P, Zaky MY, Islam MM, Khalil AA, Aljohani ASM, Al Abdulmonem W, Ribaudo G. The medicinal chemistry of Urtica dioica L.: from preliminary evidence to clinical studies supporting its neuroprotective activity. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:16. [PMID: 37171512 PMCID: PMC10176313 DOI: 10.1007/s13659-023-00380-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
Urtica dioica is a perennial herb from the family of Urticaceae that is commonly known as stinging nettle. This plant is widespread in Europe, Africa, America, and a part of Asia, as it adapts to different environments and climatic conditions. The leaves, stalk, and bark of U. dioica found applications in the field of nutrition, cosmetics, textile, pest control and pharmacology. In this connection, bioactive chemical constituents such as flavonoids, phenolic acids, amino acids, carotenoids, and fatty acids have been isolated from the plant. With this review, we aim at providing an updated and comprehensive overview of the contributions in literature reporting computational, in vitro, pre-clinical and clinical data supporting the therapeutic applications of U. dioica. Experimental evidence shows that U. dioica constituents and extracts can provide neuroprotective effects by acting through a combination of different molecular mechanisms, that are discussed in the review. These findings could lay the basis for the identification and design of more effective tools against neurodegenerative diseases.
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Affiliation(s)
- Prabhakar Semwal
- Department of Biotechnology, Graphic Era Deemed to be University, 566/6 Bell Road, Clement Town, Dehra Dun, India.
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Swabi, Pakistan.
| | - Ahmed Olatunde
- Department of Medical Biochemistry, Abubakar Tafawa Balewa University, Bauchi, Nigeria
| | - Pooja Singh
- Department of Biotechnology, Graphic Era Deemed to be University, 566/6 Bell Road, Clement Town, Dehra Dun, India
| | - Mohamed Y Zaky
- Molecular Physiology Division, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
- Oncology Division, Department of Biomedical and Clinical Science, Faculty of Medicine, Linköping University, Linköping, Sweden
| | - Md Mozahidul Islam
- Department of Environmental Management, SESM, Independent University, Bangladesh, Bashundhara R/A, Dhaka, Bangladesh
| | - Anees Ahmed Khalil
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, Lahore, Pakistan
| | - Abdullah S M Aljohani
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Waleed Al Abdulmonem
- Department of Pathology, College of Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Giovanni Ribaudo
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
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Ashenafi E, Abula T, Abay SM, Arayaselassie M, Taye S, Muluye RA. Analgesic and Anti-Inflammatory Effects of 80% Methanol Extract and Solvent Fractions of the Leaves of Vernonia auriculifera Hiern. (Asteraceae). J Exp Pharmacol 2023; 15:29-40. [PMID: 36733956 PMCID: PMC9888398 DOI: 10.2147/jep.s398487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/18/2023] [Indexed: 01/28/2023] Open
Abstract
Background The leaves of V. auriculifera has been used traditionally for the treatment of inflammatory disorders, and pain in various parts of Ethiopia. However, to our knowledge, the analgesic and anti-inflammatory activity of the crude extract and solvent fractions has never been experimentally studied. Objective To assess the analgesic and anti-inflammatory activities of V. auriculifera leaf extract and solvent fractions in rodent models. Material and methods Air-dried leaves of V. auriculifera were grounded and macerated using 80% methanol. The air-dried, grounded leaves were also successively extracted with ethyl acetate, and methanol. The residue was then macerated in water for 72 hr. The extract's peripheral analgesic activity, as well as the solvent fractions, were determined using an acetic acid-induced writhing test. The hot plate model was used to assess the central analgesic effect. Carrageenan-induced hind paw edema and cotton pellet-induced granuloma models were used to assess the anti-inflammatory effect in rats. Results The 80% methanol leaf extract and solvent fractions have demonstrated significant (p < 0.05) peripheral and central analgesic activity. Both 80% methanol leaf extract and solvent fractions of V. auriculifera were found to have anti-inflammatory activity in a carrageenan-induced rat paw edema model. In the cotton pellet-induced granuloma model, all concentrations of 80% methanol leaf extract (ME), methanol fraction (MEF), and aqueous fractions (AQF) of V. auriculifera inhibited exudate and granuloma formation. Although all tested doses significantly inhibited granuloma mass formation, only the medium and highest ethyl acetate fraction (EAF) doses significantly inhibited the generation of inflammatory exudate. Conclusion This study's findings indicate that the solvent fractions and 80% methanol extract of V. auriculifera have analgesic and anti-inflammatory properties. This study's findings not only confirm the plants' traditional claim but also provide clues for further investigation of the active principles of this plant for the development of effective and safe analgesic and anti-inflammatory drugs.
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Affiliation(s)
- Ephrem Ashenafi
- Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia,Correspondence: Ephrem Ashenafi, Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia, Email
| | - Teferra Abula
- Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Solomon Mequanente Abay
- Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mahlet Arayaselassie
- Department of Pathology, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Samson Taye
- Department of Biomedical Research Team, Traditional and Modern Medicine Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Rekik Ashebir Muluye
- Department of Biomedical Research Team, Traditional and Modern Medicine Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
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Anti-inflammatory and anti-allergic potential of dietary flavonoids: A review. Biomed Pharmacother 2022; 156:113945. [DOI: 10.1016/j.biopha.2022.113945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 11/22/2022] Open
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