1
|
Saha P, Ajgaonkar S, Maniar D, Sahare S, Mehta D, Nair S. Current insights into transcriptional role(s) for the nutraceutical Withania somnifera in inflammation and aging. Front Nutr 2024; 11:1370951. [PMID: 38765810 PMCID: PMC11099240 DOI: 10.3389/fnut.2024.1370951] [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: 01/15/2024] [Accepted: 04/15/2024] [Indexed: 05/22/2024] Open
Abstract
The health-beneficial effects of nutraceuticals in various diseases have received enhanced attention in recent years. Aging is a continuous process wherein physiological activity of an individual declines over time and is characterized by various indefinite hallmarks which contribute toward aging-related comorbidities in an individual which include many neurodegenerative diseases, cardiac problems, diabetes, bone-degeneration, and cancer. Cellular senescence is a homeostatic biological process that has an important function in driving aging. Currently, a growing body of evidence substantiates the connection between epigenetic modifications and the aging process, along with aging-related diseases. These modifications are now being recognized as promising targets for emerging therapeutic interventions. Considering that almost all the biological processes are modulated by RNAs, numerous RNA-binding proteins have been found to be linked to aging and age-related complexities. Currently, studies have shed light on the ability of the nutraceutical Withania somnifera (Ashwagandha) to influence RNA expression, stability, and processing, offering insights into its mechanisms of action. By targeting RNA-related pathways, Withania somnifera may exhibit promising effects in ameliorating age-associated molecular changes, which include modifications in gene expression and signaling networks. This review summarizes the potential role of Withania somnifera as a nutraceutical in modulating RNA-level changes associated with aging, encompassing both in vitro and in vivo studies. Taken together, the putative role(s) of Withania in modulation of key RNAs will provide insights into understanding the aging process and facilitate the development of various preventive and therapeutic strategies employing nutraceuticals for healthy aging.
Collapse
Affiliation(s)
- Praful Saha
- PhytoVeda Pvt. Ltd., Mumbai, India
- Viridis Biopharma Pvt. Ltd., Mumbai, India
| | - Saiprasad Ajgaonkar
- PhytoVeda Pvt. Ltd., Mumbai, India
- Viridis Biopharma Pvt. Ltd., Mumbai, India
| | - Dishant Maniar
- PhytoVeda Pvt. Ltd., Mumbai, India
- Viridis Biopharma Pvt. Ltd., Mumbai, India
| | - Simran Sahare
- PhytoVeda Pvt. Ltd., Mumbai, India
- Viridis Biopharma Pvt. Ltd., Mumbai, India
| | - Dilip Mehta
- PhytoVeda Pvt. Ltd., Mumbai, India
- Viridis Biopharma Pvt. Ltd., Mumbai, India
| | - Sujit Nair
- PhytoVeda Pvt. Ltd., Mumbai, India
- Viridis Biopharma Pvt. Ltd., Mumbai, India
| |
Collapse
|
2
|
Srivastava S, Khan MS, Ahmad S, Dubey A, Saxena VL, Haneef M. Identification of putative antiviral bioactive compounds derived from family Asteraceae: An in silico approach. J Cell Biochem 2024; 125:e30538. [PMID: 38369774 DOI: 10.1002/jcb.30538] [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: 10/18/2023] [Revised: 01/05/2024] [Accepted: 02/02/2024] [Indexed: 02/20/2024]
Abstract
This computational study investigates 21 bioactive compounds from the Asteraceae family as potential inhibitors targeting the Spike protein (S protein) of SARS-CoV-2. Employing in silico methods and simulations, particularly CDOCKER and MM-GBSA, the study identifies two standout compounds, pterodontic acid and cichoric acid, demonstrating robust binding affinities (-46.1973 and -39.4265 kcal/mol) against the S protein. Comparative analysis with Favipiravir underscores their potential as promising inhibitors. Remarkably, these bioactives exhibit favorable ADMET properties, suggesting safety and efficacy. Molecular dynamics simulations validate their stability and interactions, signifying their potential as effective SARS-CoV-2 inhibitors.
Collapse
Affiliation(s)
| | - Mohd Shahnawaz Khan
- Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Saheem Ahmad
- Department of Medical Laboratory Sciences, College of Applied Sciences, University of Hail, Hail City, Saudi Arabia
| | - Amit Dubey
- Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, India
- Computational Chemistry and Drug Discovery Division, Quanta Calculus, Greater Noida, India
| | - Vijay Laxmi Saxena
- Sir Asutosh Mookerjee Fellow, Indian Science Congress Association, Kolkata, India
| | - Mohammad Haneef
- Department of Bioengineering, Integral University, Lucknow, India
| |
Collapse
|
3
|
Sharma PK, Kumar L, Goswami Y, Pujani M, Dikshit M, Tandon R. The aqueous root extract of Withania somnifera ameliorates LPS-induced inflammatory changes in the in vitro cell-based and mice models of inflammation. Front Pharmacol 2023; 14:1139654. [PMID: 37377934 PMCID: PMC10291246 DOI: 10.3389/fphar.2023.1139654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Introduction: Most critically ill COVID-19 patients have bronchitis, pneumonia, and acute respiratory distress syndrome (ARDS) due to excessive inflammatory conditions. Corticosteroids have largely been prescribed for the management of inflammation in these patients. However, long-term use of corticosteroids in patients with comorbidities such as metabolic, cardiovascular, and other inflammatory disorders is ideally not recommended due to safety issues. A potential and safer anti-inflammatory therapy is therefore the need of the hour. Withania somnifera (WS), a well-known herbal medicine used during the pandemic in India to prevent SARS-CoV2 infection, also possesses anti-inflammatory properties. Methods: In the present study, we, therefore, evaluated the effect of the aqueous extract of the roots of W. somnifera in the cell-based assays and in the experimental animal models of LPS-induced inflammation. Results: In the NCI-H460, A549 cells and human peripheral blood mononuclear cells (PBMCs) pre-treatment with W. somnifera reduced the LPS-induced expression of the pro-inflammatory cytokines. In addition, W. somnifera extract also showed potent anti-inflammatory activity in the lung tissues of BALB/c mice challenged intranasally with LPS. We observed a marked reduction in the neutrophil counts in the broncho-alveolar lavage (BAL) fluid, inflammatory cytokines, and fibrosis in the mice lungs pre-treated with W. somnifera. Results obtained thus suggest the potential utility of W. somnifera extract in reducing airway inflammation and recommend the clinical evaluation of W. somnifera extract in COVID-19 patients with a high propensity for lung inflammation.
Collapse
Affiliation(s)
| | - Lokesh Kumar
- Translational Health Science and Technology Institute, Faridabad, India
| | - Yamini Goswami
- Translational Health Science and Technology Institute, Faridabad, India
| | - Mukta Pujani
- ESIC Medical College and Hospital, Faridabad, India
| | - Madhu Dikshit
- Translational Health Science and Technology Institute, Faridabad, India
- Pharmacology Division, Central Drug Research Institute, Lucknow, India
| | - Ruchi Tandon
- Translational Health Science and Technology Institute, Faridabad, India
| |
Collapse
|
4
|
Salinas-Arellano ED, Castro-Dionicio IY, Jeyaraj JG, Mirtallo Ezzone NP, Carcache de Blanco EJ. Phytochemical Profiles and Biological Studies of Selected Botanical Dietary Supplements Used in the United States. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 122:1-162. [PMID: 37392311 DOI: 10.1007/978-3-031-26768-0_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2023]
Abstract
Based on their current wide bioavailability, botanical dietary supplements have become an important component of the United States healthcare system, although most of these products have limited scientific evidence for their use. The most recent American Botanical Council Market Report estimated for 2020 a 17.3% increase in sales of these products when compared to 2019, for a total sales volume of $11,261 billion. The use of botanical dietary supplements products in the United States is guided by the Dietary Supplement Health and Education Act (DSHEA) from 1994, enacted by the U.S. Congress with the aim of providing more information to consumers and to facilitate access to a larger number of botanical dietary supplements available on the market than previously. Botanical dietary supplements may be formulated for and use only using crude plant samples (e.g., plant parts such as the bark, leaves, or roots) that can be processed by grinding into a dried powder. Plant parts can also be extracted with hot water to form an "herbal tea." Other preparations of botanical dietary supplements include capsules, essential oils, gummies, powders, tablets, and tinctures. Overall, botanical dietary supplements contain bioactive secondary metabolites with diverse chemotypes that typically are found at low concentration levels. These bioactive constituents usually occur in combination with inactive molecules that may induce synergy and potentiation of the effects observed when botanical dietary supplements are taken in their different forms. Most of the botanical dietary supplements available on the U.S. market have been used previously as herbal remedies or as part of traditional medicine systems from around the world. Their prior use in these systems also provides a certain level of assurance in regard to lower toxicity levels. This chapter will focus on the importance and diversity of the chemical features of bioactive secondary metabolites found in botanical dietary supplements that are responsible for their applications. Many of the active principles of botanical dietary substances are phenolics and isoprenoids, but glycosides and some alkaloids are also present. Biological studies on the active constituents of selected botanical dietary supplements will be discussed. Thus, the present chapter should be of interest for both members of the natural products scientific community, who may be performing development studies of the products available, as well as for healthcare professionals who are directly involved in the analysis of botanical interactions and evaluation of the suitability of botanical dietary supplements for human consumption.
Collapse
Affiliation(s)
- Eric D Salinas-Arellano
- Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH, 43210, USA
| | - Ines Y Castro-Dionicio
- Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH, 43210, USA
| | - Jonathan G Jeyaraj
- Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH, 43210, USA
| | - Nathan P Mirtallo Ezzone
- Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH, 43210, USA
| | - Esperanza J Carcache de Blanco
- Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH, 43210, USA.
| |
Collapse
|
5
|
Yu J, Geng Y, Xia H, Ma D, Liu C, Wu R, Wu J, You S, Bi Y. LAB Fermentation Improves Production of Bioactive Compounds and Antioxidant Activity of Withania somnifera Extract and Its Metabolic Signatures as Revealed by LC-MS/MS. J Microbiol Biotechnol 2022; 32:473-483. [PMID: 35058401 PMCID: PMC9628816 DOI: 10.4014/jmb.2111.11018] [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: 11/10/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 12/15/2022]
Abstract
In this study we investigated the effect of lactic acid bacteria (LAB) fermentation on the ingredients and anti-oxidant activity of Withania somnifera extract. Four strains of LAB could proliferate normally in medium containing W. somnifera extract after the pH reached 3.1~3.5. LAB fermentation increased the content of alcohols and ketones, endowing the extract with the characteristic aroma of fermentation. Compared to the control, the DPPH and ABTS free radical scavenging rates in the fermented samples were significantly improved, ranging from 48.5% to 59.6% and 1.2% to 6.4%. The content of total phenols was significantly increased by 36.1% during the fermentation of mixed bacteria. Moreover, the original composition spectrum of the extract was significantly changed while the differentially accumulated metabolites (DAMs) were closely related to bile secretion, tryptophan metabolism and purine metabolism. Therefore, LAB fermentation can be used as a promising way to improve the flavor and bioactivity of the extracts of W. somnifera, making the ferments more attractive for use as functional food.
Collapse
Affiliation(s)
- Jinhui Yu
- Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, P.R. China
| | - Yun Geng
- Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, P.R. China
| | - Han Xia
- Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, P.R. China
| | - Deyuan Ma
- Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, P.R. China
| | - Chao Liu
- College of Life Science, Shandong Normal University, Jinan 250100, P.R. China
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, P.R. China
| | - Junrui Wu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, P.R. China
| | - Shengbo You
- Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, P.R. China,Corresponding authors S. You Phone: + 86-531-83175075 Fax: + 86-531-83178155 E-mail:
| | - Yuping Bi
- Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, P.R. China,College of Life Science, Shandong Normal University, Jinan 250100, P.R. China,
Y. Bi Phone: +86-531-66659781 Fax: + 86-531-66658156 E-mail:
| |
Collapse
|
6
|
Abd El-Aziz NM, Khalifa I, Darwish AMG, Badr AN, Aljumayi H, Hafez ES, Shehata MG. Docking Analysis of Some Bioactive Compounds from Traditional Plants against SARS-CoV-2 Target Proteins. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092662. [PMID: 35566014 PMCID: PMC9100219 DOI: 10.3390/molecules27092662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/25/2022] [Accepted: 02/26/2022] [Indexed: 12/24/2022]
Abstract
COVID-19 is still a global pandemic that has not been stopped. Many traditional medicines have been demonstrated to be incredibly helpful for treating COVID-19 patients while fighting the disease worldwide. We introduced 10 bioactive compounds derived from traditional medicinal plants and assessed their potential for inhibiting viral spike protein (S-protein), Papain-like protease (PLpro), and RNA dependent RNA polymerase (RdRp) using molecular docking protocols where we simulate the inhibitors bound to target proteins in various poses and at different known binding sites using Autodock version 4.0 and Chimera 1.8.1 software. Results found that the chicoric acid, quinine, and withaferin A ligand strongly inhibited CoV-2 S -protein with a binding energy of -8.63, -7.85, and -7.85 kcal/mol, respectively. Our modeling work also suggested that curcumin, quinine, and demothoxycurcumin exhibited high binding affinity toward RdRp with a binding energy of -7.80, -7.80, and -7.64 kcal/mol, respectively. The other ligands, namely chicoric acid, demothoxycurcumin, and curcumin express high binding energy than the other tested ligands docked to PLpro with -7.62, -6.81, and -6.70 kcal/mol, respectively. Prediction of drug-likeness properties revealed that all tested ligands have no violations to Lipinski's Rule of Five except cepharanthine, chicoric acid, and theaflavin. Regarding the pharmacokinetic behavior, all ligand predicted to have high GI-absorption except chicoric acid and theaflavin. At the same way chicoric acid, withaferin A, and withanolide D predicted to be substrate for multidrug resistance protein (P-gp substrate). Caffeic acid, cepharanthine, chicoric acid, withaferin A, and withanolide D also have no inhibitory effect on any cytochrome P450 enzymes. Promisingly, chicoric acid, quinine, curcumin, and demothoxycurcumin exhibited high binding affinity on SARS-CoV-2 target proteins and expressed good drug-likeness and pharmacokinetic properties. Further research is required to investigate the potential uses of these compounds in the treatment of SARS-CoV-2.
Collapse
Affiliation(s)
- Nourhan M. Abd El-Aziz
- Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt; (A.M.G.D.); (M.G.S.)
- Correspondence:
| | - Ibrahim Khalifa
- Food Technology Department, Faculty of Agriculture, Benha University, Moshtohor, Benha 13736, Egypt;
| | - Amira M. G. Darwish
- Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt; (A.M.G.D.); (M.G.S.)
| | - Ahmed N. Badr
- Department of Food Toxicology and Contaminants, National Research Centre, Dokki, Cairo 12622, Egypt;
| | - Huda Aljumayi
- Department of Food Science and Nutrition, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - El-Sayed Hafez
- Department of Plant Protection and Biomolecular Diagnosis, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt;
| | - Mohamed G. Shehata
- Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt; (A.M.G.D.); (M.G.S.)
- Food Research Section, R&D Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi P.O. Box 52150, United Arab Emirates
| |
Collapse
|
7
|
Sulaiman MK, Lakshmanan J. Systemic and Anticancer Potential of Adaptogenic Constituents Isolated from Traditional Herbs - A Mini-Review. Anticancer Agents Med Chem 2022; 22:2811-2821. [PMID: 35400325 DOI: 10.2174/1871520622666220408091610] [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: 11/18/2021] [Revised: 01/21/2022] [Accepted: 02/23/2022] [Indexed: 11/22/2022]
Abstract
Adaptogens were initially recognized as stress-resistance inducing compounds. Recent studies reveal that adaptogens are pleiotropically-acting chemical constituents that can be isolated from traditional herbs. They are gaining increasing attention in cancer chemotherapy. This review summarizes the physiological action of adaptogens isolated from the 9 most widely used traditional herbs implicated in cancer therapy viz., Withania somnifera, Tinospora cordifolia, Rhodiola rosea, Emblica officinalis, Glycyrrhiza glabra, Bacopa monnieri, Asparagus racemosus, Ocimum sanctum, and Panax notoginseng. The studies were identified through a systematic search of major computerized databases such as Pubmed, Embase, Medline, Inflibnet, Google Scholar, and Cochrane Library. Individual names of each herb and biological action were the search terms employed. In this review, we have enlisted the chemical constituents and their mechanism of action in a few organ systems as well as in cancer cells. Studies indicate that the adaptogens isolated from these herbs can be broadly arranged into 2 classes based on their chemical structure. These molecules exert a positive influence on several organ systems such as respiratory, nervous, cardiovascular, immune, and gastrointestinal tract. It is also clear that adaptogens act as effective chemopreventive agents alone or in combination with chemo drugs in multiple cancers by targeting multiple intracellular target proteins. Therefore, we conclude that adaptogens are versatile ligands capable of eliciting many systemic effects. Their biological functions are complex, varied, and context-dependent in various cancers. This offers great scope for personalized treatment and cancer chemoprevention in the future.
Collapse
Affiliation(s)
| | - Jaganathan Lakshmanan
- Dr. Hiram C. Polk, Jr., Department of Surgery, University of Louisville, 511, S FLoyd St, MDR Building, RM#317, Louisville, KY 40202. USA
| |
Collapse
|
8
|
Kaur K, Dolker D, Behera S, Pati PK. Critical factors influencing in vitro propagation and modulation of important secondary metabolites in Withania somnifera (L.) dunal. PLANT CELL, TISSUE AND ORGAN CULTURE 2022; 149:41-60. [PMID: 35039702 PMCID: PMC8754361 DOI: 10.1007/s11240-021-02225-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 12/29/2021] [Indexed: 06/01/2023]
Abstract
Withania somnifera (L.) Dunal is a valuable medicinal plant in the Solanaceae family. It is commonly known as Ashwagandha and is widely distributed around the globe. It has multiple pharmacological properties owing to the existence of diverse secondary metabolites viz., withanolide A, withanolide D, withaferin A, and withanone. It is in great demand in the herbal industry because of its extensive use. In this background, the major challenge lies in the rapid multiplication of elite cultivars of W. somnifera in order to produce genetically and phytoconstituents uniform plant material for pharmaceutical industries. Thus it is necessary to explore various biotechnological approaches for the clonal mass propagation and synthesis of pharmaceutically important constituents in W. somnifera. Though there are several studies on in vitro propagation on W. somnifera, yet many factors that critically influence the in vitro response and withanolides production need to be fine-tuned in the pretext of the existing knowledge. The current review focuses on the advancements and prospects in biotechnological interventions to meet the worldwide demands for W. somnifera and its bioactive compounds. This update on in vitro studies on W. somnifera will be useful to many researchers, entrepreneurs, and herbal industries looking for its in vitro mass multiplication and scientific utilization.
Collapse
Affiliation(s)
- Kuldeep Kaur
- Department of Biotechnology, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| | - Dechen Dolker
- Department of Biotechnology, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| | - Shashikanta Behera
- Department of Biotechnology, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| | - Pratap Kumar Pati
- Department of Biotechnology, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| |
Collapse
|
9
|
Thorat SA, Kaniyassery A, Poojari P, Rangel M, Tantry S, Kiran KR, Joshi MB, Rai PS, Botha AM, Muthusamy A. Differential Gene Expression and Withanolides Biosynthesis During in vitro and ex vitro Growth of Withania somnifera (L.) Dunal. FRONTIERS IN PLANT SCIENCE 2022; 13:917770. [PMID: 35774803 PMCID: PMC9237602 DOI: 10.3389/fpls.2022.917770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/12/2022] [Indexed: 05/03/2023]
Abstract
Ashwagandha (Withania somnifera L. Dunal) is a medicinally important plant with withanolides as its major bioactive compounds, abundant in the roots and leaves. We examined the influence of plant growth regulators (PGRs) on direct organogenesis, adventitious root development, withanolide biosynthetic pathway gene expression, withanolide contents, and metabolites during vegetative and reproductive growth phases under in vitro and ex vitro conditions. The highest shooting responses were observed with 6-benzylaminopurine (BAP) (2.0 mg L-1) + Kinetin (KIN) (1.5 mg L-1) supplementation. Furthermore, BAP (2.0 mg L-1) + KIN (1.5 mg L-1) + gibberellic acid (GA3) (0.5 mg L-1) exhibited better elongation responses with in vitro flowering. Half-strength MS medium with indole-3-butyric acid (IBA) (1.5 mg L-1) exhibited the highest rooting responses and IBA (1.0 mg L-1) with highest fruits, and overall biomass. Higher contents of withaferin A (WFA) [∼8.2 mg g-1 dry weight (DW)] were detected in the reproductive phase, whereas substantially lower WFA contents (∼1.10 mg g-1 DW) were detected in the vegetative phase. Cycloartenol synthase (CAS) (P = 0.0025), sterol methyltransferase (SMT) (P = 0.0059), and 1-deoxy-D-xylulose-5-phosphate reductase (DXR) (P = 0.0375) genes resulted in a significant fold change in expression during the reproductive phase. The liquid chromatography-mass spectrometry (LC-MS) analysis revealed metabolites that were common (177) and distinct in reproductive (218) and vegetative (167) phases. Adventitious roots cultured using varying concentrations of indole-3-acetic acid (IAA) (0.5 mg L-1) + IBA (1.0 mg L-1) + GA3 (0.2 mg L-1) exhibited the highest biomass, and IAA (0.5 mg L-1) + IBA (1.0 mg L-1) exhibited the highest withanolides content. Overall, our findings demonstrate the peculiarity of withanolide biosynthesis during distinct growth phases, which is relevant for the large-scale production of withanolides.
Collapse
Affiliation(s)
- Sachin Ashok Thorat
- Department of Plant Sciences, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Arya Kaniyassery
- Department of Plant Sciences, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Poornima Poojari
- Department of Plant Sciences, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Melissa Rangel
- Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Shashikala Tantry
- Department of Plant Sciences, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Kodsara Ramachandra Kiran
- Department of Plant Sciences, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Manjunath B. Joshi
- Department of Ageing Research, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Padmalatha S. Rai
- Department of Biotechnology, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Anna-Maria Botha
- Department of Genetics, Faculty of Agriculture, University of Stellenbosch, Stellenbosch, South Africa
| | - Annamalai Muthusamy
- Department of Plant Sciences, Manipal School of Life Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
- *Correspondence: Annamalai Muthusamy,
| |
Collapse
|
10
|
Cheah KL, Norhayati MN, Husniati Yaacob L, Abdul Rahman R. Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis. PLoS One 2021; 16:e0257843. [PMID: 34559859 PMCID: PMC8462692 DOI: 10.1371/journal.pone.0257843] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 09/10/2021] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE To determine the effect of Ashwagandha extract on sleep. METHODS A comprehensive search was conducted in CENTRAL, MEDLINE, SCOPUS, Google Scholars, World Health Organization Trials Portal, ClinicalTrials.gov, Clinical Trial Registry of India, and AYUSH Research Portal for all appropriate trials. Randomized controlled trials that examined the effect of Ashwagandha extract versus placebo on sleep in human participants 18 years old and above were considered. Two authors independently read all trials and independently extracted all relevant data. The primary outcomes were sleep quantity and sleep quality. The secondary outcomes were mental alertness on rising, anxiety level, and quality of life. RESULTS A total of five randomized controlled trials containing 400 participants were analyzed. Ashwagandha extract exhibited a small but significant effect on overall sleep (Standardized Mean Difference -0.59; 95% Confidence Interval -0.75 to -0.42; I2 = 62%). The effects on sleep were more prominent in the subgroup of adults diagnosed with insomnia, treatment dosage ≥600 mg/day, and treatment duration ≥8 weeks. Ashwagandha extract was also found to improve mental alertness on rising and anxiety level, but no significant effect on quality of life. No serious side effects were reported. CONCLUSION Ashwagandha extract appears to has a beneficial effect in improving sleep in adults. However, data on the serious adverse effects of Ashwagandha extract are limited, and more safety data would be needed to assess whether it would be safe for long-term use.
Collapse
Affiliation(s)
- Kae Ling Cheah
- Department of Family Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Mohd Noor Norhayati
- Department of Family Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Lili Husniati Yaacob
- Department of Family Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
- * E-mail:
| | - Razlina Abdul Rahman
- Department of Family Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| |
Collapse
|
11
|
Khalil HMA, Eliwa HA, El-Shiekh RA, Al-Mokaddem AK, Hassan M, Tawfek AM, El-Maadawy WH. Ashwagandha (Withania somnifera) root extract attenuates hepatic and cognitive deficits in thioacetamide-induced rat model of hepatic encephalopathy via induction of Nrf2/HO-1 and mitigation of NF-κB/MAPK signaling pathways. JOURNAL OF ETHNOPHARMACOLOGY 2021; 277:114141. [PMID: 33905819 DOI: 10.1016/j.jep.2021.114141] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 03/05/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ashwagandha (ASH) is one of the medicinal plants used in traditional Indian, Ayurvedic, and Unani medicines for their broad range of pharmacological activities including, tonic, aphrodisiac, energy stimulant, and counteracting chronic fatigue. Besides, it is used in the treatment of nervous exhaustion, memory-related conditions, insomnia, as well as improving learning ability and memory capacity. ASH is preclinically proven to be efficient in hepatoprotection and improving cognitive impairment, however, its beneficial effects against hepatic encephalopathy (HE) is still unclear. Therefore, this study aimed at investigating the protective effects of ASH root extract against thioacetamide (TAA)-induced HE and delineate the underlying behavioral and pharmacological mechanisms. MATERIALS AND METHODS ASH metabolites were identified using UPLC-HRMS. Rats were pretreated with ASH (200 and 400 mg/kg) for 29 days and administrated TAA (i.p, 350 mg/kg) in a single dose. Then, behavioral (open field test, Y-maze, modified elevated plus maze and novel object recognition test), and biochemical (ammonia and hepatic toxicity indices) assessments, as well as oxidative stress markers (MDA and GSH) were evaluated. The hepatic and brain levels of glutamine synthetase (GS), nuclear factor erythroid 2-related factor 2 (Nrf2), heme-oxygenase (HO)-1, inducible nitric oxide synthase (iNOS) were detected by enzyme-linked immunosorbent assay (ELISA). The mRNA expressions of p38/ERK½ were determined using real-time polymerase chain reaction (PCR). Moreover, histopathological investigations and immunohistochemical (NF-κB and TNF-α immunohistochemical expressions) examinations were performed. RESULTS Metabolite profiling of ASH revealed more than 45 identified metabolites including phenolic acids, flavonoids and steroidal lactone triterpenoids. Compared to the TAA-intoxicated group, ASH improved the locomotor and cognitive deficits, serum hepatotoxicity indices and ammonia levels, as well as brain and hepatic histopathological alterations. ASH reduced hepatic and brain levels of MDA, GS, and iNOS, and increased their GSH, Nrf2, and HO-1 levels. Also, ASH downregulated p38 and ERK½ mRNA expressions, and NF-κB and TNF-α immunohistochemical expressions in brain and hepatic tissues. CONCLUSIONS Our results provided insights into the promising hepato- and neuroprotective effects of ASH, with superiority to 400 mg/kg ASH, to ameliorate HE with its sequential hyperammonemia and liver/brain injuries. This could be attributed to the recorded increase in the spontaneous alternation % and recognition index, antioxidant and anti-inflammatory activities, as well as upregulation of Nrf2 and downregualtion of MAPK signaling pathways.
Collapse
Affiliation(s)
- Heba M A Khalil
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Hesham A Eliwa
- Department of Pharmacology and Toxicology, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th October, Giza, 12566, Egypt.
| | - Riham A El-Shiekh
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr El Aini St., Cairo, 11562, Egypt.
| | - Asmaa K Al-Mokaddem
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza Square, Giza, 12211, Egypt.
| | - Marwa Hassan
- Department of Immunology, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba (P.O. 30), Giza, 12411, Egypt.
| | - Azza M Tawfek
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Walaa H El-Maadawy
- Department of Pharmacology, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba (P.O. 30), Giza, 12411, Egypt.
| |
Collapse
|
12
|
Experimental evidence and mechanism of action of some popular neuro-nutraceutical herbs. Neurochem Int 2021; 149:105124. [PMID: 34245808 DOI: 10.1016/j.neuint.2021.105124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 12/12/2022]
Abstract
Brain and neuronal circuits constitute the most complex organ networks in human body. They not only control and coordinate functions of all other organs, but also represent one of the most-affected systems with stress, lifestyle and age. With global increase in aging populations, these neuropathologies have emerged as major concern for maintaining quality of life. Recent era has witnessed a surge in nutritional remediation of brain dysfunctions primarily by "nutraceuticals" that refer to functional foods and supplements with pharmacological potential. Specific dietary patterns with a balanced intake of carbohydrates, fatty acids, vitamins and micronutrients have also been ascertained to promote brain health. Dietary herbs and their phytochemicals with wide range of biological and pharmacological activities and minimal adverse effects have gained remarkable attention as neuro-nutraceuticals. Neuro-nutraceutical potentials of herbs are often expressed as effects on cognitive response, circadian rhythm, neuromodulatory, antioxidant and anti-inflammatory activities that are mediated by effects on gene expression, epigenetics, protein synthesis along with their turnover and metabolic pathways. Epidemiological and experimental evidence have implicated enormous applications of herbal supplementation in neurodegenerative and psychiatric disorders. The present review highlights the identification, experimental evidence and applications of some herbs including Bacopa monniera, Withania somnifera, Curcuma longa, Helicteres angustifolia, Undaria pinnatifida, Haematococcus pluvialis, and Vitis vinifera, as neuro-nutraceuticals.
Collapse
|
13
|
Namdeo AG, Ingawale DK. Ashwagandha: Advances in plant biotechnological approaches for propagation and production of bioactive compounds. JOURNAL OF ETHNOPHARMACOLOGY 2021; 271:113709. [PMID: 33346029 DOI: 10.1016/j.jep.2020.113709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 09/12/2020] [Accepted: 12/15/2020] [Indexed: 05/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Withania somnifera is one of the most extensively delved Ayurvedic medicine. Apart from rejuvenation and increasing longevity, it has several other properties such as immunomodulation, anti-cancer, anti-stress and neuroprotection. Because of its prevailing use and increasing demand, it becomes prudent to scientifically evaluate and document both its propagation and production of desired phytoconstituents. AIM OF THE STUDY This review aims to highlight the research progress achieved on various biotechnological and tissue culture aspects of Withania somnifera and to cover up-to-date information regarding in-vitro propagation and production of withanolides. MATERIALS AND METHODS Significant published studies were identified for the years 2000-2018 using Elsevier-Science Direct, Pubmed and Google scholar and several research studies in our laboratory. Following keywords such as "plant extracts", "in vitro cultures", "callus and suspension culture", "micropropagation", "hairy root cultures" were used. Further, "Withania somnifera", "secondary metabolites specially withanolides", "molecular techniques" and "in vitro conservation" were used to cross-reference the keywords. RESULTS Ashwagandha comprises a broad spectrum of phytochemicals with a wide range of pharmacological properties. W. somnifera seeds have reduced viability and germination rates; thus, its regular cultivation method fails to achieve commercial demands mainly for the production of desired phytoconstituents. Cultivation of plant cells/tissues under in vitro conditions and development of various biotechnological strategies will help to build an attractive alternative to provide adequate quality and quantity raw materials. Recently, a large number of in vitro protocols has developed for W. somnifera not only for its propagation but for the production of secondary metabolites as well. Present work highlights a variety of biotechnological strategies both for prompt propagation and production of different bioactive secondary metabolites. CONCLUSION The present review focuses on the development and opportunities in various biotechnological approaches to accomplish the global demand of W. somnifera and its secondary metabolites. This review underlines the advances in plant biotechnological approaches for the propagation of W. somnifera and production of its bioactive compounds.
Collapse
Affiliation(s)
- Ajay G Namdeo
- Poona College of Pharmacy, Bharati Vidyapeeth Deemed to be University, Erandawane, Pune, 411038, India.
| | - Deepa K Ingawale
- Poona College of Pharmacy, Bharati Vidyapeeth Deemed to be University, Erandawane, Pune, 411038, India
| |
Collapse
|
14
|
Mehmood F, Abdullah, Ubaid Z, Bao Y, Poczai P, Mirza B. Comparative Plastomics of Ashwagandha ( Withania, Solanaceae) and Identification of Mutational Hotspots for Barcoding Medicinal Plants. PLANTS (BASEL, SWITZERLAND) 2020; 9:E752. [PMID: 32549379 PMCID: PMC7355740 DOI: 10.3390/plants9060752] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 01/04/2023]
Abstract
Within the family Solanaceae, Withania is a small genus belonging to the Solanoideae subfamily. Here, we report the de novo assembled chloroplast genome sequences of W. coagulans, W. adpressa, and W. riebeckii. The length of these genomes ranged from 154,162 to 154,364 base pairs (bp). These genomes contained a pair of inverted repeats (IRa and IRb) ranging from 25,029 to 25,071 bp that were separated by a large single-copy (LSC) region of 85,635-85,765 bp and a small single-copy (SSC) region of 18,457-18,469 bp. We analyzed the structural organization, gene content and order, guanine-cytosine content, codon usage, RNA-editing sites, microsatellites, oligonucleotide and tandem repeats, and substitutions of Withania plastomes, which revealed high similarities among the species. Comparative analysis among the Withania species also highlighted 10 divergent hotspots that could potentially be used for molecular marker development, phylogenetic analysis, and species identification. Furthermore, our analyses showed that even three mutational hotspots (rps4-trnT, trnM-atpE, and rps15) were sufficient to discriminate the Withania species included in current study.
Collapse
Affiliation(s)
- Furrukh Mehmood
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (F.M.); (A.); (Z.U.)
- Botany Unit, Finnish Museum of Natural History, University of Helsinki, P.O. Box 7, FI-00014 Helsinki, Finland
| | - Abdullah
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (F.M.); (A.); (Z.U.)
| | - Zartasha Ubaid
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (F.M.); (A.); (Z.U.)
| | - Yiming Bao
- National Genomics Data Center, Beijing Institute of Genomics, Chinese Academy of Sciences, and China National Center for Bioinformation, Beijing 100101, China;
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peter Poczai
- Botany Unit, Finnish Museum of Natural History, University of Helsinki, P.O. Box 7, FI-00014 Helsinki, Finland
| | - Bushra Mirza
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (F.M.); (A.); (Z.U.)
- Vice Chancellor of Lahore College for Women University, Lahore 54000, Pakistan
| |
Collapse
|
15
|
Ali I, Suhail M, Naqshbandi MF, Fazil M, Ahmad B, Sayeed A. Role of Unani Medicines in Cancer Control and Management. CURRENT DRUG THERAPY 2019. [DOI: 10.2174/1574885513666180907103659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background:Cancer is a havoc and killer disease. Several ways including allopathic chemotherapy have been used in the cancer treatment. Allopathic chemotherapy has several limitations and side effects. Unani medicine is also one of the therapies to cure cancer.Objective:In this type of treatment, herbal drugs are used for the treatment and prevention of cancer. The main attractive thing about herbal drug is no side effect as compared to allopathic chemotherapy.Methods:Actually, herbal drugs are the extracts of medicinal plants. The plant extracts are obtained by crushing and heating the main part of the plants; showing anticancer activity. The main plants used in the treatment of cancer are oroxylum indicum, dillenia indica, terminalia arjuna etc.Results:Mainly the cancers treated are of digestive system, breast, cervical, brain, blood, bone, lungs, thyroid, uterine, bladder, throat etc.Conclusion:The present review article discusses the importance of Unani system of medicine for the treatment of cancer. Besides, the future perspectives of Unani medicine in cancer treatment are also highlighted.
Collapse
Affiliation(s)
- Imran Ali
- Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi-110025, India
| | - Mohd. Suhail
- Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi-110025, India
| | - Mohd. Farooq Naqshbandi
- Department of Biotechnology, Jamia Millia Islamia (Central University), New Delhi- 110025, India
| | - Mohd. Fazil
- Hakim Ajmal Khan Institute for Literary & Historical Research in Unani Medicine, Dr. M. A. Ansari Health Centre, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi-110025, India
| | - Bilal Ahmad
- Hakim Ajmal Khan Institute for Literary & Historical Research in Unani Medicine, Dr. M. A. Ansari Health Centre, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi-110025, India
| | - Ahmad Sayeed
- Hakim Ajmal Khan Institute for Literary & Historical Research in Unani Medicine, Dr. M. A. Ansari Health Centre, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi-110025, India
| |
Collapse
|
16
|
Sharma R, Singh H, Kaushik M, Nautiyal R, Singh O. Adaptive physiological response, carbon partitioning, and biomass production of Withania somnifera (L.) Dunal grown under elevated CO 2 regimes. 3 Biotech 2018; 8:267. [PMID: 29868305 PMCID: PMC5970103 DOI: 10.1007/s13205-018-1292-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/18/2018] [Indexed: 11/28/2022] Open
Abstract
Winter cherry or Ashwagandha (Withania somnifera) is an important medicinal plant used in traditional and herbal medicine system. Yet, there is no information available on response of this plant to changing climatic conditions particularly elevated atmospheric CO2 concentrations. Therefore, we conducted an experiment to examine the effect of elevated CO2 concentrations (ECs) on Withania somnifera. The variations in traits of physiological adaptation, net primary productivity, carbon partitioning, morphology, and biomass in response to elevated CO2 concentrations (ambient, 600 and 800 µmol mol-1) during one growth cycle were investigated within the open top chamber (OTC) facility in the foothill of the Himalayas, Dehardun, India. ECs significantly increased photosynthetic rate, transpiration rate, stomatal conductance, water use efficiency, soil respiration, net primary productivity and the carbon content of plant tissues (leaf, stem, and root), and soil carbon. Furthermore, ECs significantly enhanced biomass production (root and shoot), although declined night leaf respiration. Overall, it was summarized that photosynthesis, stomatal conductance, water use efficiency, leaf, and soil carbon and biomass increased under ECs rendering the physiological adaptation to the plant. Increased net primary productivity might facilitate mitigation effects by sequestering elevated levels of carbon dioxide. We advocate further studies to investigate the effects of ECs on the accumulation of secondary metabolites and health-promoting substances of this as well as other medicinal plants.
Collapse
Affiliation(s)
- Rupali Sharma
- Ecology, Climate Change and Forest Influence Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006 India
| | - Hukum Singh
- Ecology, Climate Change and Forest Influence Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006 India
| | - Monica Kaushik
- Ecology, Climate Change and Forest Influence Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006 India
| | - Raman Nautiyal
- Indian Council of Forestry Research and Education, P. O. New Forest, Dehradun, Uttarakhand 248006 India
| | - Ombir Singh
- Ecology, Climate Change and Forest Influence Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006 India
| |
Collapse
|
17
|
Kaur A, Singh B, Ohri P, Wang J, Wadhwa R, Kaul SC, Pati PK, Kaur A. Organic cultivation of Ashwagandha with improved biomass and high content of active Withanolides: Use of Vermicompost. PLoS One 2018; 13:e0194314. [PMID: 29659590 PMCID: PMC5901777 DOI: 10.1371/journal.pone.0194314] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 02/28/2018] [Indexed: 11/19/2022] Open
Abstract
Withania somnifera (Ashwagandha) has recently been studied extensively for its health-supplementing and therapeutic activities against a variety of ailments. Several independent studies have experimentally demonstrated pharmaceutical potential of its active Withanolides, Withaferin A (Wi-A), Withanone (Wi-N) and Withanolide A (Wil-A). However, to promote its use in herbal industry, an environmentally sustainable cultivation and high yield are warranted. In modern agriculture strategies, there has been indiscriminate use of chemical fertilizers to boost the crop-yield, however the practice largely ignored its adverse effect on the quality of soil and the environment. In view of these, we attempted to recruit Vermicompost (Vcom, 20-100%) as an organic fertilizer of choice during the sowing and growing phases of Ashwagandha plants. We report that (i) pre-soaking of seeds for 12 h in Vermicompost leachate (Vcom-L) and Vermicompost tea (Vcom-T) led to higher germination, (ii) binary combination of pre-soaking of seeds and cultivation in Vcom (up to 80%) resulted in further improvement both in germination and seedling growth, (iii) cultivated plants in the presence of Vcom+Vcom-L showed higher leaf and root mass, earlier onset of flowering and fruiting and (iv) leaves from the Vcom+Vcom-L cultivated plants showed higher level of active Withanolides, Withanone (Wi-N), Withanolide A (Wil-A) and Withaferin A (Wi-A) and showed anticancer activities in cell culture assays. Taken together, we report a simple and inexpensive method for improving the yield and pharmaceutical components of Ashwagandha leaves.
Collapse
Affiliation(s)
- Amandeep Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Baldev Singh
- Department of Biotechnology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Jia Wang
- Drug Discovery and Assets Innovation Lab, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
| | - Renu Wadhwa
- Drug Discovery and Assets Innovation Lab, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
| | - Sunil C. Kaul
- Drug Discovery and Assets Innovation Lab, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
- * E-mail: (AK); (PKP); (SCK)
| | - Pratap Kumar Pati
- Department of Biotechnology, Guru Nanak Dev University, Amritsar, Punjab, India
- * E-mail: (AK); (PKP); (SCK)
| | - Arvinder Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India
- * E-mail: (AK); (PKP); (SCK)
| |
Collapse
|
18
|
Sikandan A, Shinomiya T, Nagahara Y. Ashwagandha root extract exerts anti‑inflammatory effects in HaCaT cells by inhibiting the MAPK/NF‑κB pathways and by regulating cytokines. Int J Mol Med 2018; 42:425-434. [PMID: 29620265 DOI: 10.3892/ijmm.2018.3608] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 03/29/2018] [Indexed: 11/06/2022] Open
Abstract
A paste composed of the boiled leaves and roots of the Ashwagandha plant is used to cure ulcer and swelling in Ayurvedic medicine. However, the effects of the hot water extract of Ashwagandha roots (ASH‑WEX), which is also used in Ayurveda, on skin have not been fully elucidated. Therefore, the present study investigated the anti‑inflammatory activity of ASH‑WEX on skin, by using the human keratinocyte cell line HaCaT. The results indicated that ASH‑WEX significantly inhibited mRNA expression of inflammatory cytokines, including interleukin (IL)‑8, IL‑6, tumor necrosis factor (TNF‑α), IL‑1β and IL‑12, and promoted the mRNA expression of the anti‑inflammatory cytokine transforming growth factor (TGF)‑β1 in HaCaT cells. In addition, ASH‑WEX inhibited the lipopolysaccharide‑induced phosphorylation of p38 and c‑Jun N‑terminal kinase, as well as the nuclear translocation of nuclear factor (NF)‑κB p65. Downregulation of TNF‑α mRNA and upregulation of TGF‑β1 mRNA were also observed in vivo following ASH‑WEX treatment of mouse skin. In conclusion, the present study demonstrated that the anti‑inflammatory effect of ASH‑WEX may be due to its ability to suppress the NF‑κB and mitogen‑activated protein kinase pathways, and to modulate cytokine expression. These results suggest that ASH‑WEX can potentially protect against skin inflammation.
Collapse
Affiliation(s)
- Abudubari Sikandan
- Division of Life Science and Engineering, School of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350‑0394, Japan
| | - Takahisa Shinomiya
- Division of Life Science and Engineering, School of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350‑0394, Japan
| | - Yukitoshi Nagahara
- Division of Life Science and Engineering, School of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350‑0394, Japan
| |
Collapse
|
19
|
Shasmita, Rai MK, Naik SK. Exploring plant tissue culture inWithania somnifera(L.) Dunal:in vitropropagation and secondary metabolite production. Crit Rev Biotechnol 2017; 38:836-850. [DOI: 10.1080/07388551.2017.1416453] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Shasmita
- Department of Botany, Ravenshaw University, Cuttack, India
| | - Manoj K. Rai
- Department of Environmental Science, Indira Gandhi National Tribal University, Amarkantak, India
| | | |
Collapse
|
20
|
Addressing Challenges to Enhance the Bioactives of Withania somnifera through Organ, Tissue, and Cell Culture Based Approaches. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3278494. [PMID: 28299323 PMCID: PMC5337329 DOI: 10.1155/2017/3278494] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/11/2016] [Accepted: 01/24/2017] [Indexed: 11/18/2022]
Abstract
Withania somnifera is a highly valued medicinal plant in traditional home medicine and is known for a wide range of bioactivities. Its commercial cultivation is adversely affected by poor seed viability and germination. Infestation by various pests and pathogens, survival under unfavourable environmental conditions, narrow genetic base, and meager information regarding biosynthesis of secondary metabolites are some of the other existing challenges in the crop. Biotechnological interventions through organ, tissue, and cell culture provide promising options for addressing some of these issues. In vitro propagation facilitates conservation and sustainable utilization of the existing germplasms and broadening the genetic base. It would also provide means for efficient and rapid mass propagation of elite chemotypes and generating uniform plant material round the year for experimentation and industrial applications. The potential of in vitro cell/organ cultures for the production of therapeutically valuable compounds and their large-scale production in bioreactors has received significant attention in recent years. In vitro culture system further provides distinct advantage for studying various cellular and molecular processes leading to secondary metabolite accumulation and their regulation. Engineering plants through genetic transformation and development of hairy root culture system are powerful strategies for modulation of secondary metabolites. The present review highlights the developments and sketches current scenario in this field.
Collapse
|
21
|
Pandey V, Ansari WA, Misra P, Atri N. Withania somnifera: Advances and Implementation of Molecular and Tissue Culture Techniques to Enhance Its Application. FRONTIERS IN PLANT SCIENCE 2017; 8:1390. [PMID: 28848589 PMCID: PMC5552756 DOI: 10.3389/fpls.2017.01390] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/26/2017] [Indexed: 05/11/2023]
Abstract
Withania somnifera, commonly known as Ashwagandha an important medicinal plant largely used in Ayurvedic and indigenous medicine for over 3,000 years. Being a medicinal plant, dried powder, crude extract as well as purified metabolies of the plant has shown promising therapeutic properties. Withanolides are the principal metabolites, responsible for the medicinal properties of the plant. Availability and amount of particular withanolides differ with tissue type and chemotype and its importance leads to identification characterization of several genes/ enzymes related to withanolide biosynthetic pathway. The modulation in withanolides can be achieved by controlling the environmental conditions like, different tissue culture techniques, altered media compositions, use of elicitors, etc. Among all the in vitro techniques, hairy root culture proved its importance at industrial scale, which also gets benefits due to more accumulation (amount and number) of withanolides in roots tissues of W. somnifera. Use of media compostion and elicitors further enhances the amount of withanolides in hairy roots. Another important modern day technique used for accumulation of desired secondary metabolites is modulating the gene expression by altering environmental conditions (use of different media composition, elicitors, etc.) or through genetic enginnering. Knowing the significance of the gene and the key enzymatic step of the pathway, modulation in withanolide contents can be achieved upto required amount in therapeutic industry. To accomplish maximum productivity through genetic enginnering different means of Withania transformation methods have been developed to obtain maximum transformation efficiency. These standardized transformation procedues have been used to overexpress/silence desired gene in W. somnifera to understand the outcome and succeed with enhanced metabolic production for the ultimate benefit of human race.
Collapse
Affiliation(s)
- Vibha Pandey
- Department of Plant Molecular Biology, University of DelhiNew Delhi, India
| | - Waquar Akhter Ansari
- Department of Botany, Mahila Maha Vidhyalaya (MMV), Banaras Hindu UniversityVaranasi, India
| | - Pratibha Misra
- National Botanical Research Institute, Council of Scientific and Industrial ResearchLucknow, India
- *Correspondence: Pratibha Misra
| | - Neelam Atri
- Department of Botany, Mahila Maha Vidhyalaya (MMV), Banaras Hindu UniversityVaranasi, India
- Neelam Atri
| |
Collapse
|
22
|
Kaul SC, Ishida Y, Tamura K, Wada T, Iitsuka T, Garg S, Kim M, Gao R, Nakai S, Okamoto Y, Terao K, Wadhwa R. Novel Methods to Generate Active Ingredients-Enriched Ashwagandha Leaves and Extracts. PLoS One 2016; 11:e0166945. [PMID: 27936030 PMCID: PMC5147857 DOI: 10.1371/journal.pone.0166945] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 11/06/2016] [Indexed: 12/16/2022] Open
Abstract
Ashwagandha (Withania somnifera) is an Ayurvedic herb commonly used in world-renowned traditional Indian home medicine system. Roots of Ashwagandha have been traditionally known to possess a variety of therapeutic and health promoting potentials that have not been sufficiently supported by laboratory studies. Nevertheless, most, if not all, of the preventive and therapeutic potentials have been assigned to its bioactive components, steroidal alkaloids and lactones. In contrast to the traditional use of roots, we have been exploring bioactivities in leaves of Ashwagandha. Here, we report that the leaves possess higher content of active Withanolides, Withaferin-A (Wi-A) and Withanone (Wi-N), as compared to the roots. We also established, for the first time, hydroponic cultivation of Ashwagandha and investigated the effect of various cultivation conditions on the content of Wi-A and Wi-N by chemical analysis and bioassays. We report that the Withanone/Withaferin A-rich leaves could be obtained by manipulating light condition during hydroponic cultivation. Furthermore, we recruited cyclodextrins to prepare extracts with desired ratio of Wi-N and Wi-A. Hydroponically grown Ashwagandha and its extracts with high ratio of withanolides are valuable for cancer treatment.
Collapse
Affiliation(s)
- Sunil C. Kaul
- Drug Discovery and Assets Innovation Laboratory, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
| | - Yoshiyuki Ishida
- CycloChem Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe, Japan
| | - Kazuya Tamura
- DAI-DAN Co., Ltd., 390 Kitanagai, Miyoshi-machi, Iruma-gun, Saitama, Japan
| | - Teruo Wada
- Osaka Prefecture University, 1-1 Nakakugakuencho, Sakai-city, Osaka, Japan
| | - Tomoko Iitsuka
- Drug Discovery and Assets Innovation Laboratory, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
| | - Sukant Garg
- Drug Discovery and Assets Innovation Laboratory, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
- School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Japan
| | - Mijung Kim
- Drug Discovery and Assets Innovation Laboratory, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
| | - Ran Gao
- Drug Discovery and Assets Innovation Laboratory, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
| | - Shoichi Nakai
- DAI-DAN Co., Ltd., 390 Kitanagai, Miyoshi-machi, Iruma-gun, Saitama, Japan
| | - Youji Okamoto
- Zuiron Private Ltd., 2-3-1 Nakajyosanjimacho, Tokushima-city, Tokushima, Japan
| | - Keiji Terao
- CycloChem Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe, Japan
| | - Renu Wadhwa
- Drug Discovery and Assets Innovation Laboratory, DBT-AIST International Laboratory for Advanced Biomedicine (DAILAB), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba, Japan
- School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Japan
- * E-mail:
| |
Collapse
|
23
|
Singh V, Singh B, Sharma A, Kaur K, Gupta A, Salar R, Hallan V, Pati P. Leaf spot disease adversely affects human health-promoting constituents and withanolide biosynthesis inWithania somnifera(L.) Dunal. J Appl Microbiol 2016; 122:153-165. [DOI: 10.1111/jam.13314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 09/19/2016] [Accepted: 09/30/2016] [Indexed: 01/25/2023]
Affiliation(s)
- V. Singh
- Department of Biotechnology; Guru Nanak Dev University; Amritsar Punjab India
| | - B. Singh
- Department of Biotechnology; Guru Nanak Dev University; Amritsar Punjab India
| | - A. Sharma
- Department of Biotechnology; Guru Nanak Dev University; Amritsar Punjab India
| | - K. Kaur
- Department of Biotechnology; Guru Nanak Dev University; Amritsar Punjab India
| | - A.P. Gupta
- QC & QA; Indian Institute of Integrative Medicine; Jammu Tawi Jammu and Kashmir India
| | - R.K. Salar
- Department of Biotechnology; Chaudhary Devi Lal University; Sirsa Haryana India
| | - V. Hallan
- Biotechnology Division; CSIR-Institute of Himalayan Bioresource Technology; Palampur Himachal Pradesh India
| | - P.K. Pati
- Department of Biotechnology; Guru Nanak Dev University; Amritsar Punjab India
| |
Collapse
|
24
|
Saema S, Rahman LU, Singh R, Niranjan A, Ahmad IZ, Misra P. Ectopic overexpression of WsSGTL1, a sterol glucosyltransferase gene in Withania somnifera, promotes growth, enhances glycowithanolide and provides tolerance to abiotic and biotic stresses. PLANT CELL REPORTS 2016; 35:195-211. [PMID: 26518426 DOI: 10.1007/s00299-015-1879-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 08/25/2015] [Accepted: 10/05/2015] [Indexed: 05/06/2023]
Abstract
Overexpression of sterol glycosyltransferase (SGTL1) gene of Withania somnifera showing its involvement in glycosylation of withanolide that leads to enhanced growth and tolerance to biotic and abiotic stresses. Withania somnifera is widely used in Ayurvedic medicines for over 3000 years due to its therapeutic properties. It contains a variety of glycosylated steroids called withanosides that possess neuroregenerative, adaptogenic, anticonvulsant, immunomodulatory and antioxidant activities. The WsSGTL1 gene specific for 3β-hydroxy position has a catalytic specificity to glycosylate withanolide and sterols. Glycosylation not only stabilizes the products but also alters their physiological activities and governs intracellular distribution. To understand the functional significance and potential of WsSGTL1 gene, transgenics of W. somnifera were generated using Agrobacterium tumefaciens-mediated transformation. Stable integration and overexpression of WsSGTL1 gene were confirmed by Southern blot analysis followed by quantitative real-time PCR. The WsGTL1 transgenic plants displayed number of alterations at phenotypic and metabolic level in comparison to wild-type plants which include: (1) early and enhanced growth with leaf expansion and increase in number of stomata; (2) increased production of glycowithanolide (majorly withanoside V) and campesterol, stigmasterol and sitosterol in glycosylated forms with reduced accumulation of withanolides (withaferin A, withanolide A and withanone); (3) tolerance towards biotic stress (100 % mortality of Spodoptera litura), improved survival capacity under abiotic stress (cold stress) and; (4) enhanced recovery capacity after cold stress, as indicated by better photosynthesis performance, chlorophyll, anthocyanin content and better quenching regulation of PSI and PSII. Our data demonstrate overexpression of WsSGTL1 gene which is responsible for increase in glycosylated withanolide and sterols, and confers better growth and tolerance to both biotic and abiotic stresses.
Collapse
Affiliation(s)
- Syed Saema
- Tissue Culture and Plant Transformation Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
- Department of Bioscience, Integral University, Lucknow, India
| | - Laiq Ur Rahman
- Department of Biotechnology, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
| | - Ruchi Singh
- Tissue Culture and Plant Transformation Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | - Abhishek Niranjan
- Tissue Culture and Plant Transformation Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | | | - Pratibha Misra
- Tissue Culture and Plant Transformation Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India.
| |
Collapse
|
25
|
Dhar N, Razdan S, Rana S, Bhat WW, Vishwakarma R, Lattoo SK. A Decade of Molecular Understanding of Withanolide Biosynthesis and In vitro Studies in Withania somnifera (L.) Dunal: Prospects and Perspectives for Pathway Engineering. FRONTIERS IN PLANT SCIENCE 2015; 6:1031. [PMID: 26640469 PMCID: PMC4661287 DOI: 10.3389/fpls.2015.01031] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 11/06/2015] [Indexed: 05/16/2023]
Abstract
Withania somnifera, a multipurpose medicinal plant is a rich reservoir of pharmaceutically active triterpenoids that are steroidal lactones known as withanolides. Though the plant has been well-characterized in terms of phytochemical profiles as well as pharmaceutical activities, limited attempts have been made to decipher the biosynthetic route and identification of key regulatory genes involved in withanolide biosynthesis. This scenario limits biotechnological interventions for enhanced production of bioactive compounds. Nevertheless, recent emergent trends vis-à-vis, the exploration of genomic, transcriptomic, proteomic, metabolomics, and in vitro studies have opened new vistas regarding pathway engineering of withanolide production. During recent years, various strategic pathway genes have been characterized with significant amount of regulatory studies which allude toward development of molecular circuitries for production of key intermediates or end products in heterologous hosts. Another pivotal aspect covering redirection of metabolic flux for channelizing the precursor pool toward enhanced withanolide production has also been attained by deciphering decisive branch point(s) as robust targets for pathway modulation. With these perspectives, the current review provides a detailed overview of various studies undertaken by the authors and collated literature related to molecular and in vitro approaches employed in W. somnifera for understanding various molecular network interactions in entirety.
Collapse
Affiliation(s)
- Niha Dhar
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Sumeer Razdan
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Satiander Rana
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Wajid W Bhat
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Ram Vishwakarma
- Medicinal Chemistry, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Surrinder K Lattoo
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| |
Collapse
|
26
|
Nootropic potential of Ashwagandha leaves: Beyond traditional root extracts. Neurochem Int 2015; 95:109-18. [PMID: 26361721 DOI: 10.1016/j.neuint.2015.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 08/14/2015] [Accepted: 09/03/2015] [Indexed: 12/31/2022]
Abstract
Rapidly increasing aging population and environmental stressors are the two main global concerns of the modern society. These have brought in light rapidly increasing incidence of a variety of pathological conditions including brain tumors, neurodegenerative & neuropsychiatric disorders, and new challenges for their treatment. The overlapping symptoms, complex etiology and lack of full understanding of the brain structure and function to-date further complicate these tasks. On the other hand, several herbal reagents with a long history of their use have been asserted to possess neurodifferentiation, neuroregenerative and neuroprotective potentials, and hence been recommended as supplement to enhance and maintain brain health and function. Although they have been claimed to function by holistic approach resulting in maintaining body homeostasis and brain health, there are not enough laboratory studies in support to these and mechanism(s) of such beneficial activities remain largely undefined. One such herb is Ashwagandha, also called "Queen of Ayurveda" for its popular use in Indian traditional home medicine because of its extensive benefits including anticancer, anti-stress and remedial potential for aging and neurodegenerative pathologies. However, active principles and underlying mechanism(s) of action remain largely unknown. Here we provide a review on the effects of Ashwagandha extracts and active principles, and underlying molecular mechanism(s) for brain pathologies. We highlight our findings on the nootropic potential of Ashwagandha leaves. The effects of Ashwagandha leaf extracts are multidimensional ranging from differentiation of neuroblastoma and glioma cells, reversal of Alzheimer and Parkinson's pathologies, protection against environmental neurotoxins and enhancement of memory.
Collapse
|