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Das T, Kumar Pandey D, Shekhawat MS, Dey A, Malik T. Quantification of Tissue-Specific Paclitaxel in Himalayan Yew Using HPTLC-Densitometric Analysis, Assessment of Toxicological Activity, and Tissue-Specific Evaluation of Antioxidant Activity. ACS OMEGA 2023; 8:32108-32118. [PMID: 37692257 PMCID: PMC10483656 DOI: 10.1021/acsomega.3c04309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/01/2023] [Indexed: 09/12/2023]
Abstract
Taxus wallichiana Zucc., commonly known as the Himalayan Yew, is currently experiencing endangerment due to excessive harvesting and sluggish growth resulting from the extraction of paclitaxel, a crucial plant-derived medication employed in the treatment of cancer. T. wallichiana contains various phytochemicals, including paclitaxel, a diterpenoid that has been utilized as an anticancer medication. In order to extract paclitaxel while maintaining the species' survival, it is difficult to determine the most effective plant parts. We determined the diterpenoid paclitaxel content using modern analytical methods such as high-performance thin-layer chromatography-densitometric analysis. Furthermore, toxicological evaluations were carried out and tissue-specific antioxidant activity was statistically analyzed using 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS), ferric reducing antioxidant power (FRAP), Folin-Ciocâlteu (FC), and 2,2-diphenyl-β-picrylhydrazyl (DPPH) assays. The results of our study offer significant contributions to the identification of optimal plant components for the extraction of paclitaxel. This information is crucial in the conservation of T. wallichiana and in mitigating the difficulties associated with its threatened classification. The present investigation makes a valuable contribution toward the advancement of sustainable methodologies in the manufacturing of paclitaxel, as well as the preservation of T. wallichiana for posterity. Bark exhibited the maximum paclitaxel yield at a content of 29162.3 μg/g dry weight. The accuracy of the method has been validated in accordance with the guidelines outlined by the International Council for Harmonisation (ICH). The current investigation evaluated the potential cytotoxic and genotoxic effects of the aqueous extracts on meristematic cells from the roots ofAllium cepa. The extracts obtained from the bark exhibited noteworthy cytotoxic and mitotic characteristics. The current investigation holds potential significance for the pharmaceutical sector in terms of identifying superior chemotypes of T. wallichiana that produce high levels of paclitaxel. Conducting a toxicological assessment on various tissues of T. wallichiana chemotypes through employment of the Allium cepa test would facilitate the identification of any potential genotoxic characteristics. The present study aimed to investigate four distinct assays, namely, DPPH, ABTS, FRAP, and FC, for the evaluation of the antioxidant potential of diverse T. wallichiana plant extracts and standard substances. The findings suggest that FRAP and ABTS exhibit a strong correlation. In general, the entirety of the tissue extract exhibited commendable antioxidant capacity, thereby rendering it a promising contender for diverse applications.
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Affiliation(s)
- Tuyelee Das
- Department
of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Devendra Kumar Pandey
- Department
of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab , India
| | - Mahipal S. Shekhawat
- Plant
Biotechnology Unit, KM Government Institute
for Postgraduate Studies and Research, Lawspet605 008, Puducherry, India
| | - Abhijit Dey
- Department
of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Tabarak Malik
- Department
of Biomedical Sciences, Institute of Health, Jimma University, Jimma 378, Ethiopia
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Gahtori R, Tripathi AH, Kumari A, Negi N, Paliwal A, Tripathi P, Joshi P, Rai RC, Upadhyay SK. Anticancer plant-derivatives: deciphering their oncopreventive and therapeutic potential in molecular terms. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2023. [DOI: 10.1186/s43094-023-00465-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Abstract
Background
Over the years, phytomedicines have been widely used as natural modalities for the treatment and prevention of various diseases by different ethnic groups across the globe. Although, 25% of drugs in the USA contain at least one plant-derived therapeutic compound, currently there is a paucity of plant-derived active medicinal ingredients in the pharmaceutical industry. Scientific evidence-based translation of plant-derived ethnomedicines for their clinical application is an urgent need. The anticancer and associated properties (antioxidative, anti-inflammatory, pro-apoptotic and epithelial-mesenchymal transition (EMT) inhibition) of various plant extracts and phytochemicals have been elucidated earlier. Several of the plant derivatives are already in use under prophylactic/therapeutic settings against cancer and many are being investigated under different phases of clinical trials.
Main body
The purpose of this study is to systematically comprehend the progress made in the area of prophylactic and therapeutic potential of the anticancerous plant derivatives. Besides, we aim to understand their anticancer potential in terms of specific sub-phenomena, such as anti-oxidative, anti-inflammatory, pro-apoptotic and inhibition of EMT, with an insight of the molecules/pathways associated with them. The study also provides details of classes of anticancer compounds, their plant source(s) and the molecular pathway(s) targeted by them. In addition to the antioxidative and antiproliferative potentials of anticancer plant derivatives, this study emphasizes on their EMT-inhibition potential and other ‘anticancer related’ properties. The EMT is highlighted as a phenomenon of choice for targeting cancer due to its role in the induction of metastasis and drug resistance. Different phytochemicals in pre-clinical or clinical trials, with promising chemopreventive/anticancer activities have been enlisted and the plant compounds showing synergistic anticancer activity in combination with the existing drugs have been discussed. The review also unravels the need of carrying out pan-signalome studies for identifying the cardinal pathways modulated by phytomedicine(s), as in many cases, the molecular pathway(s) has/have been randomly studied.
Conclusion
This review systematically compiles the studies regarding the impact of various plant derivatives in different cancers and oncogenic processes, as tested in diverse experimental model systems. Availability of more comprehensive information on anticancer phyto-constituents, their relative abundance in crude drugs, pathways/molecules targeted by phytomedicines, their long-term toxicity data and information regarding their safe use under the combinatorial settings, would open greater avenues of their utilization in future against this dreaded disease.
Graphical Abstract
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Terpenoids from Litsea lancilimba Merr. and their chemotaxonomic significant. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Khajuria AK, Manhas RK, Kumar H, Bisht NS. Ethnobotanical study of traditionally used medicinal plants of Pauri district of Uttarakhand, India. JOURNAL OF ETHNOPHARMACOLOGY 2021; 276:114204. [PMID: 34000367 DOI: 10.1016/j.jep.2021.114204] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 05/24/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The indigenous knowledge of medicinal plants is important part of primary health care system in almost every society, especially the far-flung areas. These areas, one of the last storehouses of traditional knowledge are under the constant threat of losing this valuable information as it moves from one generation to another through word of mouth. Modernization, migration, education, and changing socio-economic status of people also affect the perpetuality of traditional knowledge. Therefore, time-to-time updation of information regarding the ethnomedicinal plants must be carried out so that any addition to the traditional knowledge is recorded and further phytochemical and pharmacological studies may be conducted for developing new drugs. AIM OF THE STUDY The study aimed at documenting the traditional knowledge and practices about the medicinal plants used by the inhabitants of Pauri district of Uttarakhand. Besides, the study strives to identify plants for future phytochemical and pharmacological studies. MATERIAL AND METHODS The information was collected through semi-structured questionnaire from 98 informants distributed in 15 villages of Pauri. The data was analyzed for use-reports (UR), frequency of citation (FC) and informant consensus factor (FIC). RESULTS In the present study, total 236 species belonging to 80 families and 188 genera were found to treat 82 ailments. Asteraceae (23 species), Rosaceae (16 species) and Lamiaceae (13 species) were the most represented families. Correlation and regression analysis between the local flora and present study reveals that Poaceae, Fabaceae, and Asteraceae were the main outlier species having more representatives in local flora than medicinally important species. Herbs (57.2%) were the most frequently used life forms, and leaves (24.5%) the most commonly utilized plant parts. All the plants were collected from the natural resources and none of them was under cultivation. Nearly 76% of the total drugs were administered orally. The informants divulged 1556 use-reports. The most utilized species based on frequency of citation were Urtica dioica L. (44), Bergenia ciliata Haworth (38), Viola canescens Wall. (38), Rhododendron arboretum Smith (32), and Ocimum tenuiflorum L. (30). All the disorders were grouped into 13 ailment categories based on ICPC-2 classification. The main ailment categories as per Informant Consensus Factor (FIC) were digestive (FIC, 0.83), urological (FIC, 0.83) and cardiovascular (FIC, 0.81) disorders. A comparative analysis between the present and other local and regional studies show that as many as 13 species were new record for the state of Uttarakhand. CONCLUSION The inhabitants of Pauri have good knowledge of medicinal plants. Although the therapeutic value of most of the preferred medicinal plants has already been validated, some medicinal plants lack proper scientific validation. We recommend further phytochemical investigations and pharmacological validations of Begonia picta Smith, Citrus pseudolimon Tanka, Cotoneaster rotundifolia Wall., Heracleum canescens Lindl., Parochetus communis Buch-Ham., Pittosporum napaulense DC., and Plantago erosa Wall.
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Affiliation(s)
- Arun Kumar Khajuria
- Department of Botany, HNB Garhwal University, Campus Pauri, Pauri Garhwal, 246001, Uttarakhand, India.
| | - R K Manhas
- Department of Botany, Government Degree College, Basohli, 184201, Jammu & Kashmir, India.
| | - Harish Kumar
- Department of Botany, HNB Garhwal University, Campus Pauri, Pauri Garhwal, 246001, Uttarakhand, India.
| | - N S Bisht
- Department of Botany, HNB Garhwal University, Campus Pauri, Pauri Garhwal, 246001, Uttarakhand, India.
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Bhardwaj K, Islam MT, Jayasena V, Sharma B, Sharma S, Sharma P, Kuča K, Bhardwaj P. Review on essential oils, chemical composition, extraction, and utilization of some conifers in Northwestern Himalayas. Phytother Res 2020; 34:2889-2910. [PMID: 32515528 DOI: 10.1002/ptr.6736] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/25/2020] [Accepted: 05/07/2020] [Indexed: 12/19/2022]
Abstract
Essential oils (EOs) are regarded as alternative therapeutic agents for many diseases. In phytotherapy research areas, it is now well reported that conifers are the rich source of EOs. This review aims to update information on the biological sources and the best extraction processes of the significant constituents along with the traditional and therapeutic properties of the EOs from selected conifers of Himachal Pradesh, Northwestern Himalaya. In the present review, ten conifer species of high values have been selected. Results from several studies suggest that the conifers contain monoterpenes, sesquiterpenes, diterpenes, ketones, alcohols, and esters, which are used in medicines, food products, and cosmetics as well as other commercial and industrial products. Traditionally, the EOs from the conifers have been reported to be used against fever, cough, bronchitis, skin diseases, gastrointestinal disorders, and asthma. The pharmacological studies suggest that these EOs can be used as antirheumatic, antiseptic, antispasmodic, anticancer, anti-inflammatory, antitoxic, aphrodisiac, and astringent agents. It is, therefore, concluded that the EOs from the conifers might be one of the promising tools for the treatment of various diseases. Extensive research is required to ascertain the efficacy of the EOs from unstudied conifers.
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Affiliation(s)
- Kanchan Bhardwaj
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, India
| | - Muhammad Torequl Islam
- Laboratory of Theoretical and Computational Biophysics, Ton Duc Thang University, Ho Chi Minh, Vietnam.,Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh, Vietnam
| | - Vijay Jayasena
- School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia
| | - Bechan Sharma
- Department of Biochemistry, University of Allahabad, Allahabad, India
| | - Somesh Sharma
- School of Bioengineering & Food Technology, Shoolini University of Biotechnology and Management Sciences, Solan, India
| | - Pankaj Sharma
- Department of Himachal Pradesh State Biodiversity Board, Shimla, India
| | - Kamil Kuča
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Prerna Bhardwaj
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, India
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Traditional Herbal Knowledge among the Inhabitants: A Case Study in Urgam Valley of Chamoli Garhwal, Uttarakhand, India. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:5656925. [PMID: 31275412 PMCID: PMC6582913 DOI: 10.1155/2019/5656925] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 05/02/2019] [Indexed: 01/23/2023]
Abstract
The Indian Himalaya is rich in plant species, including many medicinal plants, greatly valued by local inhabitants for health care needs. The study in Urgam Valley of Uttarakhand, India, is to identity and document traditional knowledge of medicinal plants. The study revealed high consensus on medicinal plant usage, with 51 species belonging to 31 families used for local health care. Number of species and uses known increases with age, and elders and specialist healers retain higher levels of traditional medicinal plant knowledge, having unique knowledge of medicinal plants and their uses as well as preparation.
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Li N, Pan Z, Zhang D, Wang HX, Yu B, Zhao SP, Guo JJ, Wang JW, Yao L, Cao WG. Chemical Components, Biological Activities, and Toxicological Evaluation of the Fruit (Aril) of Two Precious Plant Species from Genus Taxus. Chem Biodivers 2017; 14. [PMID: 28921887 DOI: 10.1002/cbdv.201700305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/12/2017] [Indexed: 11/05/2022]
Abstract
The fruit (aril) of the endangered genus Taxus plants is an abandoned herbal resource. Traditionally, people enthusiastically focus on its bark, its renewable, tremendous arils fall into the soil with seeds after they are mature. The present research investigated the fruit of two species from the genus Taxus, Taxus chinensis var. mairei, and Taxus media, with regards to their antioxidant and antihyperglycaemic activities, safety, and bioactive constituents. Results showed that T. chinensis var. mairei and T. media both had certain biological activities with T. chinensis var. mairei better in antioxidant activity and T. media better in antihyperglycaemic activity. Correlation analysis revealed that the differences in bioactivities depended on content of their mainly chemical components. The mice acute oral toxicity test indicated that the methanol extracts of the two biotypes of Taxus were safe. And nineteen compounds were tentatively assigned from the two varieties, via tandem mass spectrometry using a LC-ESI-Q-TOF-MS instrument, which included phenols, flavonoids, and terpenes. These results indicate a possible application of Taxus fruit extracts in various fields like in food industry, however, this still needs further investigations.
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Affiliation(s)
- Na Li
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Zheng Pan
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Dan Zhang
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Hua-Xing Wang
- Chongqing Bo Cao Cottage Technology Co., Ltd., Chongqing, 400016, P. R. China
| | - Bao Yu
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Sheng-Ping Zhao
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Jia-Jia Guo
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Jian-Wei Wang
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Ling Yao
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Wei-Guo Cao
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China.,The Lab of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China
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Khan M, Mahmood A, Alkhathlan HZ. Characterization of leaves and flowers volatile constituents of Lantana camara growing in central region of Saudi Arabia. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2015.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Stefanović M, Ristić M, Popović Z, Matić R, Nikolić B, Vidaković V, Obratov-Petković D, Bojović S. Chemical Composition and Interpopulation Variability of Essential Oils of Taxus baccata L. from Serbia. Chem Biodivers 2016; 13:943-53. [PMID: 27286568 DOI: 10.1002/cbdv.201500326] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/22/2016] [Indexed: 11/11/2022]
Abstract
The composition of the essential oil of the twigs and needles of Taxus baccata L. from three natural populations in Serbia has been determined by GC/MS analysis. Of the 91 detected compounds, 87 were identified. The most abundant compound classes were aliphatic alcohols, terpenes, aliphatic hydrocarbons, and aliphatic aldehydes, which together comprised ca. 86.92% of the total oil composition. The dominant constituents were oct-1-en-3-ol (23.48%), (3Z)-hex-3-en-1-ol (11.46%; aliphatic alcohols), and myrtenol (11.38%; oxygenated monoterpene). The PCA of 22 selected compounds revealed differentiations of populations based on geographic distribution. The CA showed that Populations I and II from the Dinaric Alps were similar, and that Population III from the Balkan mountain system was distinct. This was the first investigation of interpopulation variability of T. baccata populations based on essential oil composition. The results of this study were compared with those of previous studies concerning volatile compounds produced by Taxus species. The results indicate that the essential oil content of T. baccata populations from this study is unique, mostly resembling the population from southeast Serbia.
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Affiliation(s)
- Milena Stefanović
- Institute for Biological Research 'Siniša Stanković', University of Belgrade, Boulevard Despota Stefana 142, RS-11060, Belgrade.
| | - Mihailo Ristić
- Institute for Medicinal Plant Research 'Dr Josif Pančić', Tadeuša Košćuška 1, RS-11000, Belgrade.
| | - Zorica Popović
- Institute for Biological Research 'Siniša Stanković', University of Belgrade, Boulevard Despota Stefana 142, RS-11060, Belgrade.
| | - Rada Matić
- Institute for Biological Research 'Siniša Stanković', University of Belgrade, Boulevard Despota Stefana 142, RS-11060, Belgrade.
| | - Biljana Nikolić
- Institute of Forestry, Kneza Višeslava 3, RS-11000, Belgrade
| | - Vera Vidaković
- Institute for Biological Research 'Siniša Stanković', University of Belgrade, Boulevard Despota Stefana 142, RS-11060, Belgrade
| | | | - Srdjan Bojović
- Institute for Biological Research 'Siniša Stanković', University of Belgrade, Boulevard Despota Stefana 142, RS-11060, Belgrade.
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A review of traditional use, phytoconstituents and biological activities of Himalayan yew, Taxus wallichiana. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2015; 13:80-90. [DOI: 10.1016/s2095-4964(15)60161-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Juyal D, Thawani V, Thaledi S, Joshi M. Ethnomedical properties of taxus wallichiana zucc. (Himalayan yew). J Tradit Complement Med 2014; 4:159-61. [PMID: 25161920 PMCID: PMC4142453 DOI: 10.4103/2225-4110.136544] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Taxus wallichiana Zucc., known as Himalayan yew, belongs to the family Taxaceae. It is a medium-sized, temperate, Himalayan forest tree of medicinal importance. In India, this evergreen tree is found at altitudes between 1800 and 3300 m above mean sea level (MSL). It has been used by the native populations for treating common cold, cough, fever, and pain. Its uses are described in Ayurveda and Unani medicine. It received attention recently as its leaves and bark were found to be the prime source of taxol, a potent anticancer drug. It possesses many other biological activities also. We focus on its importance in traditional medicine for its multiple medicinal properties.
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Affiliation(s)
- Deepak Juyal
- Department of Microbiology and Immunology, Veer Chandra Singh Garhwali Government Medical Sciences and Research Institute, Srinagar Garhwal - 246 174, Uttarakhand, India
| | - Vijay Thawani
- Department of Pharmacology, Shri Guru Ram Rai Institute of Medical and Health Sciences, Dehradun - 248 001, Uttarakhand, India
| | - Shweta Thaledi
- Department of Microbiology and Pathology, Seema Dental College and Hospital, Virbhadra Road, PO Pashulok, Rishikesh - 249 203, Uttarakhand, India
| | - Manoj Joshi
- Department of Microbiology and Immunology, Veer Chandra Singh Garhwali Government Medical Sciences and Research Institute, Srinagar Garhwal - 246 174, Uttarakhand, India
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Tan WN, Wong KC, Khairuddean M, Eldeen IM, Asmawi MZ, Sulaiman B. Volatile constituents of the fruit ofGarcinia atroviridisand their antibacterial and anti-inflammatory activities. FLAVOUR FRAG J 2012. [DOI: 10.1002/ffj.3118] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wen-Nee Tan
- School of Chemical Sciences; Universiti Sains Malaysia; 11800; Penang; Malaysia
| | - Keng-Chong Wong
- School of Chemical Sciences; Universiti Sains Malaysia; 11800; Penang; Malaysia
| | - Melati Khairuddean
- School of Chemical Sciences; Universiti Sains Malaysia; 11800; Penang; Malaysia
| | | | - Mohd. Zaini Asmawi
- School of Pharmaceutical Sciences; Universiti Sains Malaysia; 11800; Penang; Malaysia
| | - Baharuddin Sulaiman
- School of Biological Sciences; Universiti Sains Malaysia; 11800; Penang; Malaysia
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Varlet V, Augsburger M. Monitoring of aglycons of yew glycosides (3,5-dimethoxyphenol, myrtenol and 1-octen-3-ol) as first indicator of yew presence. Drug Test Anal 2012; 5:474-9. [PMID: 22371422 DOI: 10.1002/dta.391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 10/24/2011] [Accepted: 10/24/2011] [Indexed: 11/09/2022]
Abstract
The toxicity of yew (Taxus spp) is well known from ancient times and is mainly due to taxins acting as inhibitors of calcium and sodium transport across the cell membrane of cardiac myocytes. The confirmation of yew taxins in body fluids can be carried out by liquid chromatography-tandem mass spectrometry (LC-MS/MS). However, before selecting this precise but expensive technique, an orientation test should be done to ascertain yew presence as toxic agent in the organism. As the 3,5-dimethoxyphenol (3,5-DMP), myrtenol and 1-octen-3-ol appear as glycosidically bound volatile compounds and are very yew specific, the detection of 3,5-DMP and the measurement of 1-octen-3-ol / myrtenol concentration ratio constitute reliable indicators of yew presence in forensic cases. The detection of these compounds is easily performed by gas chromatography-mass spectrometry (GC-MS) (SIM) after an enzymatic hydrolysis (β-glucosidase) allowing the release of volatile compounds from yew glycosides.
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Affiliation(s)
- V Varlet
- University Center of Legal Medicine Lausanne-Geneva, CH-1011, Lausanne, Switzerland.
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Radulović N, Blagojević P, Palić R, Zlatković B. Chemical Composition of the Essential Oil Hydrodistilled from SerbianTaxus baccataL. JOURNAL OF ESSENTIAL OIL RESEARCH 2010. [DOI: 10.1080/10412905.2010.9700371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Radulović N, Blagojević P, Palić R. Fatty Acid Derived Compounds – the Dominant Volatile Class of the Essential Oil Poor Sonchus Arvensis Subsp. Uliginosus (Bieb.) Nyman. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Chemical composition of the essential oil hydrodistilled from aerial parts of Sonchus arvensis subsp. uliginosus is reported for the first time. GC and GC-MS analyses of the oil enabled the identification of 114 components that represented 97.4% of the total oil. Main identified constituents were heneicosane (28.4%), ( Z)-3-hexen-1-ol (19.0%), ( E)-2-hexen-1-ol (11.6%), 1-eicosanol (7.5%) and tricosane (5.3%). Fatty acid derived compounds (“green leaf” volatiles, alkanes, n-alkenes, n-aldehydes and n-alcohols) were by far predominant (89.4%). A much lower percentage of shikimate metabolites (5.0%), carotenoid-derived compounds (1.7%) and terpenoids (0.9%) has also been detected in the oil. Compositions of the essential oils of S. arvensis subsp. uliginosus and other 18 randomly chosen species, characterized by a wide range of essential oil yields, belonging to different plant genera, were compared using multivariate statistical analysis. The results strongly suggest that the main volatiles of essential oil poor species (yields less then 0.1%) are fatty acid- and carotenoid derived compounds, while essential oil rich taxa (essential oil yields much higher then 0.1%) are generally characterized by the specific production of mono- and sesquiterpenoids, and/or phenylpropanoids.
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Affiliation(s)
- Niko Radulović
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Polina Blagojević
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Radosav Palić
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
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Nisar M, Khan I, Ahmad B, Ali I, Ahmad W, Choudhary MI. Antifungal and antibacterial activities of Taxus wallichiana Zucc. J Enzyme Inhib Med Chem 2008; 23:256-60. [DOI: 10.1080/14756360701505336] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Muhammad Nisar
- Centre of Biotechnology, University of Peshawar, Peshawar, 25120, Pakistan
| | - Inamullah Khan
- Department of Pharmacy, University of Peshawar, Peshawar, 25120, Pakistan
| | - Bashir Ahmad
- Centre of Biotechnology, University of Peshawar, Peshawar, 25120, Pakistan
| | - Ihsan Ali
- Centre of Biotechnology, University of Peshawar, Peshawar, 25120, Pakistan
| | - Waqar Ahmad
- Department of Pharmacy, University of Peshawar, Peshawar, 25120, Pakistan
| | - Muhammad Iqbal Choudhary
- H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi, -75270, Pakistan
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