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Jayaraman M, Dutta P, Krishnan S, Arora K, Sivakumar D, Raghavendran HRB. Emerging Promise of Phytochemicals in Ameliorating Neurological Disorders. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2022; 22:CNSNDDT-EPUB-124961. [PMID: 35786341 DOI: 10.2174/1871527321666220701153926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/09/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The field of medicine and synthetic drug development have advanced rapidly over the past few decades. However, research on alternative medicine such as phytochemicals cannot be ignored. The main reason for prominent curiosity about phytochemicals stems from the belief that usage of natural compounds is safer and has lesser detrimental side effects. OBJECTIVE The aim of the present review was to discuss in detail with several phytochemicals that have been studied or are being studied in the context of various neurological disorders including depression, Alzheimer's disease, Huntington's disease and even neuroinflammatory disorders such as encephalitis. METHODS The potential role of phytochemicals in the treatment or management of symptoms associated with neurological disorders have been included in this article. All data included in this paper has been pooled from various databases including Google Scholar, PubMed, Science Direct, Springer and Wiley Online Library. RESULTS Phytochemicals have been widely studied for their therapeutic properties associated with neurological disorders. Using various experimental techniques for both in vivo and in vitro experiments, studies have shown that phytochemicals do have antioxidant, anti-inflammatory and neuroprotective activities which play major roles in the treatment of neurological diseases. CONCLUSION Even though there has been compelling evidence of the therapeutic role of phytochemicals, further research is still required to evaluate the safety and efficacy of these medicines. Using previously published papers as foundation for additional research such as preclinical studies and clinical trials, phytochemicals can become a safer alternative to synthetic drugs for treating a spectrum of neurological diseases.
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Affiliation(s)
- Megala Jayaraman
- Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur-603203, Chennai, Tamil Nadu, India
| | - Parijat Dutta
- Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur-603203, Chennai, Tamil Nadu, India
| | - Sabari Krishnan
- Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur-603203, Chennai, Tamil Nadu, India
| | - Khyati Arora
- Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur-603203, Chennai, Tamil Nadu, India
| | - Diveyaa Sivakumar
- Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur-603203, Chennai, Tamil Nadu, India
- School of Dental Sciences, University Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Hanumanth Rao Balaji Raghavendran
- Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research, Central Research Facility, Porur, Chennai-600116, India
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Giménez-Bastida JA, González-Sarrías A, Laparra-Llopis JM, Schneider C, Espín JC. Targeting Mammalian 5-Lipoxygenase by Dietary Phenolics as an Anti-Inflammatory Mechanism: A Systematic Review. Int J Mol Sci 2021; 22:7937. [PMID: 34360703 PMCID: PMC8348464 DOI: 10.3390/ijms22157937] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 12/15/2022] Open
Abstract
5-Lipoxygenase (5-LOX) plays a key role in inflammation through the biosynthesis of leukotrienes and other lipid mediators. Current evidence suggests that dietary (poly)phenols exert a beneficial impact on human health through anti-inflammatory activities. Their mechanisms of action have mostly been associated with the modulation of pro-inflammatory cytokines (TNF-α, IL-1β), prostaglandins (PGE2), and the interaction with NF-κB and cyclooxygenase 2 (COX-2) pathways. Much less is known about the 5-lipoxygenase (5-LOX) pathway as a target of dietary (poly)phenols. This systematic review aimed to summarize how dietary (poly)phenols target the 5-LOX pathway in preclinical and human studies. The number of studies identified is low (5, 24, and 127 human, animal, and cellular studies, respectively) compared to the thousands of studies focusing on the COX-2 pathway. Some (poly)phenolics such as caffeic acid, hydroxytyrosol, resveratrol, curcumin, nordihydroguaiaretic acid (NDGA), and quercetin have been reported to reduce the formation of 5-LOX eicosanoids in vitro. However, the in vivo evidence is inconclusive because of the low number of studies and the difficulty of attributing effects to (poly)phenols. Therefore, increasing the number of studies targeting the 5-LOX pathway would largely expand our knowledge on the anti-inflammatory mechanisms of (poly)phenols.
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Affiliation(s)
- Juan Antonio Giménez-Bastida
- Laboratory of Food and Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, Department Food Science and Technology, CEBAS-CSIC, P.O. Box 164, Campus de Espinardo, 30100 Murcia, Spain;
| | - Antonio González-Sarrías
- Laboratory of Food and Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, Department Food Science and Technology, CEBAS-CSIC, P.O. Box 164, Campus de Espinardo, 30100 Murcia, Spain;
| | - José Moisés Laparra-Llopis
- Group of Molecular Immunonutrition in Cancer, Madrid Institute for Advanced Studies in Food (IMDEA-Food), 28049 Madrid, Spain;
| | - Claus Schneider
- Division of Clinical Pharmacology, Department of Pharmacology, Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical School, Nashville, TN 37232, USA;
| | - Juan Carlos Espín
- Laboratory of Food and Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, Department Food Science and Technology, CEBAS-CSIC, P.O. Box 164, Campus de Espinardo, 30100 Murcia, Spain;
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Rahman K, Khan SU, Fahad S, Shinwari ZK, Khan D, Kamal S, Ullah I, Anjum SI, Man S, Khan AJ, Khan WU, Khan MHU, Jan M, Adnan M, Noor M. In vitro biological screening of a critically endangered medicinal plant, Atropa acuminata Royle Ex Lindl of north western Himalaya. Sci Rep 2018; 8:11028. [PMID: 30038240 PMCID: PMC6056422 DOI: 10.1038/s41598-018-29231-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 06/18/2018] [Indexed: 01/06/2023] Open
Abstract
Atropa acuminata Royle Ex Lindl (Atropa acuminata) under tremendous threat of extinction in its natural habitat. However, the antimicrobial, antileishmanial and anticancer effects of the plant’s extracts have not been reported yet. In the current study, an attempt has been made to evaluate the pharmacological potential of this plant’s extracts against microbes, Leishmania and cancer. The roots, stems and leaves of Atropa acuminata were ground; then, seven different solvents were used alone and in different ratios to prepare crude extracts, which were screened for pharmacological effects. The aqueous, methanolic and ethanolic extracts of all parts carried a broad spectrum of anti-bacterial activities, while no significant activity was observed with combined solvents. Three types of cytotoxicity assays were performed, i.e., haemolytic, brine shrimp and protein kinase assays. The aqueous extract of all the parts showed significant haemolytic activity while n-hexane extracts of roots showed significant activity against brine shrimp. The acetone extracts strongly inhibited protein kinase while the methanolic extracts exhibited significant cytotoxic activity of roots and stem. The anti-leishmanial assays revealed that the methanolic extract of leaves and roots showed significant activity. These findings suggest that this plant could be a potential source of natural product based drugs.
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Affiliation(s)
- Khaista Rahman
- State Key Laboratory of Agricultural Microbiology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, P. R. China.,Department of Biotechnology, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Shahid Ullah Khan
- College of Plant Sciences and Technology/National Key Laboratory of Crop Genetic and improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, P. R. China
| | - Shah Fahad
- College of Plant Sciences and Technology/National Key Laboratory of Crop Genetic and improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, P. R. China. .,Department of Agriculture, University of Swabi, Swabi, Khyber Pakhtunkhwa, Pakistan.
| | - Zabta Khan Shinwari
- State Key Laboratory of Agricultural Microbiology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, P. R. China.,Pakistan Academy of Sciences, Islamabad, Pakistan
| | - Dilfaraz Khan
- Institute of Chemical Sciences, Gomal University D.I.Khan, 29050, KPK, Pakistan
| | - Sajid Kamal
- School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Ikram Ullah
- State Key Laboratory of Agricultural Microbiology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, P. R. China
| | - Syed Ishtiaq Anjum
- Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Pakistan
| | - Shad Man
- Inner Mongolia University, Huhot, 010021, P. R. China
| | | | - Wasim Ullah Khan
- School of Chemistry and Chemical Engineering, Sun Yat- Sen University, Guangzhou, 510275, P. R. China
| | - Muhammad Hafeez Ullah Khan
- College of Plant Sciences and Technology/National Key Laboratory of Crop Genetic and improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, P. R. China
| | - Mehmood Jan
- Zhejiang University Hangzhou, Hangzhou, 310058, People's Republic of China
| | - Muhammad Adnan
- Department of Agriculture, University of Swabi, Swabi, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Noor
- Department of Agriculture, University of Swabi, Swabi, Khyber Pakhtunkhwa, Pakistan
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