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Lf Consisting of a Single Endemic Bastida Et Al., 2006; Nair Et Al., 2013) See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/258428257 Traditional usage, phytochemistry and pharmacology of the South African medicinal plant Boophone disticha (L.f... Article in Journal of ethnopharmacology · January 2014 DOI: 10.1016/j.jep.2013.10.053 · Source: PubMed CITATIONS READS 8 642 2 authors: Jerald James Nair Johannes van Staden University of the Free State University of KwaZulu-Natal, South Africa, Pi… 78 PUBLICATIONS 1,374 CITATIONS 357 PUBLICATIONS 6,692 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Enzyme Inhibitors as novel drug candidates View project Anticancer Agents from the Plant Family Amaryllidaceae View project All content following this page was uploaded by Jerald James Nair on 16 January 2014. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. Journal of Ethnopharmacology 151 (2014) 12–26 Contents lists available at ScienceDirect Journal of Ethnopharmacology journal homepage: www.elsevier.com/locate/jep Review Traditional usage, phytochemistry and pharmacology of the South African medicinal plant Boophone disticha (L.f.) Herb. (Amaryllidaceae) Jerald J. Nair, Johannes Van Staden n Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Private Bag X01, Scottsville 3209, South Africa article info abstract Article history: Ethnopharmacological relevance: Boophone disticha is the most common member of the South African Received 2 September 2013 Amaryllidaceae used extensively in traditional medicine of the various indigenous population groups, Received in revised form including the Sotho, Xhosa and Zulu as well as the San. This survey was carried out to identify and 23 October 2013 highlight areas relevant to the traditional usage of Boophone disticha. Pharmacological aspects were Accepted 23 October 2013 examined with the purpose of reconciling these with the traditional usage of the plant. In relation to Available online 7 November 2013 phytochemical make-up, particular attention was paid on how its alkaloid constitution might corroborate Keywords: the various biological effects manifested by the plant. Alkaloid Materials and methods: Information gathering involved the use of four different database platforms, Amaryllidaceae including Google Scholar, ScienceDirect, SciFinders and Scopus. Arrangement and detailing of this Boophone disticha information is as reflected in the various sections of the paper. Traditional medicine Results: Sixteen categories were identified under which Boophone disticha finds use in traditional medicine. These were shown to include general usage purposes, such as ‘cultural and dietary’, ‘well- being’, ‘personal injury’, ‘divinatory purposes’, ‘psychoactive properties’ and ‘veterinary uses’. Further- more, traditional usage was seen to involve six body systems, including functions pertaining to the circulatory, gastrointestinal, muscular, neurological, respiratory and urinary systems. The four remaining categories relate to use for inflammatory conditions, cancer, malaria and tuberculosis. Overall, three areas were discernible in which Boophone disticha finds most usage, which are (i) ailments pertaining to the CNS, (ii) wounds and infections, and (iii) inflammatory conditions. In addition, several aspects pertaining to the toxic properties of the plant are discussed, including genotoxicity, mutagenicity and neurotoxicity. Conclusion: The widespread ethnic usage of Boophone disticha has justified its standing as a flagship for the Amaryllidaceae and its relevance to South African traditional medicine. Furthermore, its promising pharmacological and phytochemical profiles have stimulated significant interest in the clinical realm, especially in the areas of cancer and motor neuron disease chemotherapy. These collective properties should prove useful in steering the progress of the plant towards a wider audience. & 2013 Elsevier Ireland Ltd. All rights reserved. Contents 1. Introduction.........................................................................................................13 2. Description and distribution . 14 3. Taxonomy........................................................................................................... 15 4. Conservation status . 15 5. Traditional usage . 15 6. Phytochemistry . 18 6.1. Alkaloids of the South African Amaryllidaceae . 18 Abbreviations: AChE, acetylcholineserase; AD, Alzheimer's disease; BW, body weight; CNS, central nervous system; COX, cyclo-oxygenase; IK, indigenous knowledge; LD, lethal dose; MAO, monoamine oxidase; MBC, minimum bactericidal concentration; MIC, minimum inhibitory concentration; MND, motor neuron disease; MTD, minimum toxic dose; OFS, Orange Free State; PD, Parkinson's disease; SSRI, selective serotonin reuptake inhibitor; T/C index, ratio of treated and control group; TM, traditional medicine n Corresponding author. Tel.: þ27 332605130. E-mail address: [email protected] (J. Van Staden). 0378-8741/$ - see front matter & 2013 Elsevier Ireland Ltd. All rights reserved. http://dx.doi.org/10.1016/j.jep.2013.10.053 J.J. Nair, J. Van Staden / Journal of Ethnopharmacology 151 (2014) 12–26 13 6.2. Alkaloids from Boophone disticha .................................................................................. 19 7. Pharmacology . 19 7.1. Antimicrobial activity . 19 7.2. Anti-inflammatory activity . 20 7.3. Effects on the central nervous system . 20 7.3.1. Hallucinogenic effects . 20 7.3.2. Mental disorders . 20 7.4. Anticancer activity. 22 7.5. Toxicological studies . 23 8. Conclusions . 24 Acknowledgements . 24 References..............................................................................................................24 1. Introduction et al., 2013). Chief amongst these secondary metabolites is the alkaloid galanthamine 1 (also referred to as ‘galantamine’) The Amaryllidaceae J. St.-Hil. is a large family of bulbous (Scheme 1), a prescription drug in the treatment of Alzheimer's flowering plants comprising roughly 1000 species in 79 genera disease (AD) (Greig et al., 2004; Heinrich and Teoh, 2004; with a pantropical distribution (Meerow and Snijman, 1998). Houghton et al., 2006). Having captured a significant share of Andean South America, the Mediterranean and South Africa have the multi-billion dollar global market over the past decade, been identified as centres of prominence for these monocotyle- galanthamine, like other acetylcholinesterase (AChE) inhibitor donous plants (Meerow and Snijman, 1998). Their sphere of regimens, remains steadfast as a primary choice in the chemother- influence extends into areas as diverse as agriculture, horticulture, apeutic approaches to AD (Greig et al., 2004; Heinrich and Teoh, ethnobotany, traditional medicine (TM) and pharmacology 2004; Houghton et al., 2006). This status is due chiefly to its (Viladomat et al., 1997; Bastida et al., 2006; Nair et al., 2013). For potent, selective and reversible inhibitory interaction with AChE example, daffodils (Narcissus) are amongst the most commonly which is known to play a significant role in the progression of sold cut-flower varieties and are thus of significant importance to neurodegeneration associated with the pathophysiology of AD the floriculture industry (Bastida et al., 2006). Furthermore, (Greig et al., 2004; Heinrich and Teoh, 2004; Houghton et al., several members of the family have intensive usage in the 2006). The research and development of galanthamine into a traditional medicinal practices of indigenous peoples around the viable contemporary AD drug owes much to TM knowledge world (Viladomat et al., 1997; Bastida et al., 2006; Nair et al., 2013). evolving out of the usage of Galanthus species, from which The long history of association of the Amaryllidaceae with TM in galanthamine was first isolated, in the Caucasus region of Eastern the Mediterranean basin can be traced back to the times of Europe (Heinrich and Teoh, 2004). Hippocrates and Pliny who recorded diverse medicinal applica- In terms of structural diversity, Amaryllidaceae alkaloids have tions of Narcissus (Pettit et al., 1993; Kornienko and Evidente, been classified into six distinct groups (Viladomat et al., 1997; 2008). Furthermore, archaeological findings at purportedly Inca Bastida et al., 2006; Jin, 2011; Nair et al., 2013). Galanthamine 1, ruins in South America have indicated that Ismene, Pyolirion and lycorine 2 and crinine 3 are representative of the three major Stenomesson as depicted on ceremonial drinking vessels may have structural-types for these alkaloids (Scheme 1), while homolycor- been a part of popular culture (Vargas, 1981), while San rock ine 4, tazettine 5 and montanine 6 make up the minor series of paintings of Boophone and Brunsvigia species in South Africa attest compounds discernible within the Amaryllidaceae (Viladomat to the usage of the Amaryllidaceae by the region's first inhabitants et al., 1997; Bastida et al., 2006; Jin, 2011; Nair et al., 2013). Other (Dyer, 1950; Van Wyk, 2008). less-conspicuous members include degraded, oxidised and trun- Roughly one-third of the Amaryllidaceae is found in South cated variants such as trisphaeridine 7 and ismine 8 (Viladomat Africa, the majority of which are distributed through the Capensis et al., 1997; Bastida
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