Displaying publications 1 - 20 of 189 in total

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  1. Ang HH
    Trends Pharmacol. Sci., 2004 Jun;25(6):297-8.
    PMID: 15165743
    Matched MeSH terms: Plants, Medicinal/chemistry
  2. Sabandar CW, Ahmat N, Jaafar FM, Sahidin I
    Phytochemistry, 2013 Jan;85:7-29.
    PMID: 23153517 DOI: 10.1016/j.phytochem.2012.10.009
    The genus Jatropha (Euphorbiaceae) comprises of about 170 species of woody trees, shrubs, subshrubs or herbs in the seasonally dry tropics of the Old and the New World. They are used in medicinal folklore to cure various diseases of 80% of the human population in Africa, Asia and Latin America. Species from this genus have been popular to cure stomachache, toothache, swelling, inflammation, leprosy, dysentery, dyscrasia, vertigo, anemia, diabetis, as well as to treat HIV and tumor, opthalmia, ringworm, ulcers, malaria, skin diseases, bronchitis, asthma and as an aphrodisiac. They are also employed as ornamental plants and energy crops. Cyclic peptides alkaloids, diterpenes and miscellaneous compounds have been reported from this genus. Extracts and pure compounds of plants from this genus are reported for cytotoxicity, tumor-promoting, antimicrobial, antiprotozoal, anticoagulant, immunomodulating, anti-inflammatory, antioxidant, protoscolicidal, insecticidal, molluscicidal, inhibition AChE and toxicity activities.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  3. Monica S, Jojo PJ, Khandaker MU
    Int J Radiat Biol, 2020 08;96(8):1028-1037.
    PMID: 32394771 DOI: 10.1080/09553002.2020.1767816
    Purpose: Ayurveda is one of the oldest systems of medicines in the world being practiced widely in the Indian subcontinent for more than 3000 years, and still remains as one of the important traditional health care systems. The Ayurvedic drugs are derived primarily from various parts of the plants, like root, leaf, flower, fruit or plant as a whole. Plants uptake minerals and other nutrients from the soil through their root system. Along with other minerals radionuclides present in the growing media also reach to the plant parts following the same pathway. Realizing the probable health hazards via the intake of Ayurvedic drugs, it is important to assess the concentration of natural radionuclides in commonly used medicinal plants.Materials and methods: NaI(Tl) scintillator-based gamma-ray spectrometry has been used to determine the activity concentrations of primordial radionuclides (226Ra, 232Th and 40K) in the most commonly used medicinal plant parts as ingredients of Ayurvedic medicines in India.Results and discussion: The average specific activity (Bqkg-1) of 226Ra, 232Th and 40K was found to be 43 ± 18, 36 ± 15[Formula: see text] and 230 ± 46, respectively. The estimated annual committed effective doses due to the intake of common Ayurvedic medicines at prescribed dosage was found to be 39 ± 16 µSv y-1,[Formula: see text] which is quite low as compared with the radiation dose limit of 1 mSvy-1 from all natural sources, reported by the International Commission on Radiological Protection (ICRP-60).Conclusions: It is found categorically that intake of Ayurvedic medicines at normal dosage poses no radiological hazard to the individual. Present results are significant in the wake of myths that many hazardous materials including radioisotopes are present at higher levels. Obtained results also serve as a reference information for the distribution of radionuclides in medicinal plant species.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  4. Hossain MS, Urbi Z, Sule A, Hafizur Rahman KM
    ScientificWorldJournal, 2014;2014:274905.
    PMID: 25950015 DOI: 10.1155/2014/274905
    As aboriginal sources of medications, medicinal plants are used from the ancient times. Andrographis paniculata is one of the highly used potential medicinal plants in the world. This plant is traditionally used for the treatment of common cold, diarrhoea, fever due to several infective cause, jaundice, as a health tonic for the liver and cardiovascular health, and as an antioxidant. It is also used to improve sexual dysfunctions and serve as a contraceptive. All parts of this plant are used to extract the active phytochemicals, but the compositions of phytoconstituents widely differ from one part to another and with place, season, and time of harvest. Our extensive data mining of the phytoconstituents revealed more than 55 ent-labdane diterpenoids, 30 flavonoids, 8 quinic acids, 4 xanthones, and 5 rare noriridoids. In this review, we selected only those compounds that pharmacology has already reported. Finally we focused on around 46 compounds for further discussion. We also discussed ethnobotany of this plant briefly. Recommendations addressing extraction process, tissue culture, and adventitious rooting techniques and propagation under abiotic stress conditions for improvement of phytoconstituents are discussed concisely in this paper. Further study areas on pharmacology are also proposed where needed.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  5. Akram S, Najam R, Rizwani GH, Abbas SA
    Pak J Pharm Sci, 2015 Sep;28(5):1781-7.
    PMID: 26408897
    This study depicts a profile of existence of heavy metals (Cu, Ni, Zn, Cd, Hg, Mn, Fe, Na, Ca, and Mg) in some important herbal plants like (H. Integrifolia, D. regia, R. communis, C. equisetifolia, N. oleander, T. populnea, M. elengi, H. schizopetalus, P. pterocarpum) from Pakistan and an antidiabetic Malaysian herbal drug product containing (Punica granatum L. (Mast) Hook, Momordica charantia L., Tamarindus indica L., Lawsonia inermis L.) using atomic absorption spectrophotometer. Heavy metals in these herbal plants and Malaysian product were in the range of 0.02-0.10 ppm of Cu, 0.00-0.02 ppm of Ni, 0.02-0.29 ppm of Zn, 0.00-0.04 ppm of Cd, 0.00-1.33 ppm of Hg, 0.00-0.54 ppm of Mn, 0.22-3.16 ppm of Fe, 0.00-9.17 ppm of Na, 3.27-15.63 ppm of Ca and 1.85-2.03 ppm of Mg. All the metals under study were within the prescribed limits except mercury. Out of 10 medicinal plants/product under study 07 were beyond the limit of mercury permissible limits. Purpose of this study is to determine heavy metals contents in selected herbal plants and Malaysian product, also to highlight the health concerns related to the presence of toxic levels of heavy metals.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  6. Takayama H, Aimi N, Sakai S
    Yakugaku Zasshi, 2000 Oct;120(10):959-67.
    PMID: 11082707
    The leaves of a tropical plant, Mitragyna speciosa Korth. (Rubiaceae), have been traditionally used as a substitute for opium. By phytochemical studies on the constituents of the plant growing in Thailand as well as in Malaysia, several 9-methoxy-Corynanthe-type monoterpenoid indole alkaloids including new natural products were isolated. The structures of these new compounds were elucidated by the modern spectroscopic methods and/or chiral-total syntheses. The chiral total synthesis of (-)-mitragynine, a major component of this plant, was achieved. Potent opioid agonistic properties of mitragynine, which acts on mu- and delta-opioid subtype receptors, and of mitragynine pseudoindoxyl, whose analgesic activity is more potent than that of morphine, were clarified in in vitro experiments. The essential structural features in mitragynine for revealing the analgesic activity were elucidated by pharmacological evaluation of the natural and synthetic mitragynine derivatives.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  7. Mumtaz A, Ashfaq UA, Ul Qamar MT, Anwar F, Gulzar F, Ali MA, et al.
    Nat Prod Res, 2017 Jun;31(11):1228-1236.
    PMID: 27681445 DOI: 10.1080/14786419.2016.1233409
    Medicinal plants are the main natural pools for the discovery and development of new drugs. In the modern era of computer-aided drug designing (CADD), there is need of prompt efforts to design and construct useful database management system that allows proper data storage, retrieval and management with user-friendly interface. An inclusive database having information about classification, activity and ready-to-dock library of medicinal plant's phytochemicals is therefore required to assist the researchers in the field of CADD. The present work was designed to merge activities of phytochemicals from medicinal plants, their targets and literature references into a single comprehensive database named as Medicinal Plants Database for Drug Designing (MPD3). The newly designed online and downloadable MPD3 contains information about more than 5000 phytochemicals from around 1000 medicinal plants with 80 different activities, more than 900 literature references and 200 plus targets. The designed database is deemed to be very useful for the researchers who are engaged in medicinal plants research, CADD and drug discovery/development with ease of operation and increased efficiency. The designed MPD3 is a comprehensive database which provides most of the information related to the medicinal plants at a single platform. MPD3 is freely available at: http://bioinform.info .
    Matched MeSH terms: Plants, Medicinal/chemistry*
  8. Rahmani M, Toia RF, Croft KD
    Planta Med, 1995 Oct;61(5):487-8.
    PMID: 7480216
    Matched MeSH terms: Plants, Medicinal/chemistry*
  9. Zia-Ul-Haq M, Riaz M, De Feo V, Jaafar HZ, Moga M
    Molecules, 2014 Jul 28;19(8):10998-1029.
    PMID: 25072202 DOI: 10.3390/molecules190810998
    Rubus fruticosus L. is a shrub famous for its fruit called blackberry fruit or more commonly blackberry. The fruit has medicinal, cosmetic and nutritive value. It is a concentrated source of valuable nutrients, as well as bioactive constituents of therapeutic interest highlighting its importance as a functional food. Besides use as a fresh fruit, it is also used as ingredient in cooked dishes, salads and bakery products like jams, snacks, desserts, and fruit preserves. R. fruticosus contains vitamins, steroids and lipids in seed oil and minerals, flavonoids, glycosides, terpenes, acids and tannins in aerial parts that possess diverse pharmacological activities such as antioxidant, anti-carcinogenic, anti-inflammatory, antimicrobial anti-diabetic, anti-diarrheal, and antiviral. Various agrogeoclimatological factors like cultivar, environmental conditions of the area, agronomic practices employed, harvest time, post-harvest storage and processing techniques all influence the nutritional composition of blackberry fruit. This review focuses on the nutrients and chemical constituents as well as medicinal properties of different parts of R. fruticosus. Various cultivars and their physicochemical characteristics, polyphenolic content and ascorbic acid content are also discussed. The information in the present work will serve as baseline data and may lead to new biomedical applications of R. fruticosus as functional food.
    Matched MeSH terms: Plants, Medicinal/chemistry
  10. Zar CT, Das S
    Clin Ter, 2013;164(6):529-35.
    PMID: 24424219 DOI: 10.7417/CT.2013.1633
    BACKGROUND AND OBJECTIVE: Diabetes mellitus is commonly known to lead to life threatening complications. Among them, hypertension is one complication which may be highlighted. In modern medical society, several drugs and treatment regimen have developed to treat diabetes mellitus. Although they obtain positive impacts, yet there are certain limitations encountered in the management of the disease due to their adverse effects and non-compliance by the patients. Herbs have been valued as a supplement in treating chronic oxidative stress disorder like diabetes mellitus. In the present review, some of the herbs which possess both anti-hyperglycemic and anti-hypertensive properties are being highlighted. Potential herbs which include Andrographis Paniculata, Ammi Visnaga, Allium sativum, Phyllanthus amarus, Ginkgo biloba, Solanum tuberosum, Tuberosum L. Piper sarmentosum and Lamiaceae family are known to possess antihypertensive properties. Various researches have been conducted on these herbs and positive results have been obtained. Based on these results, the present review article discusses the alternative management of diabetic hypertension with the herbal medicine. In conclusion, the present review article stresses on the need to ensure global awareness about the traditional medicines while treating diabetic hypertension.
    Matched MeSH terms: Plants, Medicinal/chemistry
  11. Mohd-Hairul AR, Sade AB, Yiap BC, Raha AR
    Genet. Mol. Res., 2011;10(4):2757-64.
    PMID: 22095601 DOI: 10.4238/2011.November.8.1
    DNA extraction was carried out on 32 medicinal plant samples available in Malaysia using the TriOmic(TM) extraction kit. Amounts of 0.1 g flowers or young leaves were ground with liquid nitrogen, lysed at 65°C in RY1(plus) buffer and followed by RNAse treatment. Then, RY2 buffer was added to the samples and mixed completely by vortexing before removal of cell debris by centrifugation. Supernatants were transferred to fresh microcentrifuge tubes and 0.1 volume RY3 buffer was added to each of the transferred supernatant. The mixtures were applied to spin columns followed by a centrifugation step to remove buffers and other residues. Washing step was carried out twice by applying 70% ethanol to the spin columns. Genomic DNA of the samples was recovered by applying 50 μL TE buffer to the membrane of each spin column, followed by a centrifugation step at room temperature. A modification of the TriOmic(TM) extraction procedure was carried out by adding chloroform:isoamyl alcohol (24:1) steps in the extraction procedure. The genomic DNA extracted from most of the 32 samples showed an increase of total yield when chloroform:isoamyl alcohol (24:1) steps were applied in the TriOmicTM extraction procedure. This preliminary study is very important for molecular studies of medicinal plants available in Malaysia since the DNA extraction can be completed in a shorter period of time (within 1 h) compared to manual extraction, which entails applying phenol, chloroform and ethanol precipitation, and requires 1-2 days to complete.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  12. Sim KM, Teh HM
    J Asian Nat Prod Res, 2011 Oct;13(10):972-5.
    PMID: 21972815 DOI: 10.1080/10286020.2011.602970
    New carbazole alkaloid, 7-hydroxymurrayazolinine (1), was isolated from the ethanol extract of the leaves of Malayan Murraya koenigii, together with five known carbazole alkaloids, mahanimbine (2), bicyclomahanimbine (3), girinimbine (4), koenimbine (5), and murrayamine-D (6). Their structures were elucidated on the basis of spectroscopic analysis.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  13. Lim KH, Kam TS
    Org. Lett., 2006 Apr 13;8(8):1733-5.
    PMID: 16597153
    [structure: see text] A new indole alkaloid, arboflorine, possessing a novel pentacyclic carbon skeleton and incorporating a third nitrogen atom was obtained from the Malayan Kopsia arborea. The structure was established by spectroscopic analysis, and a possible biogenetic pathway from a preakuammicine-type precursor is presented.
    Matched MeSH terms: Plants, Medicinal/chemistry
  14. Mohammed A, Chiruvella KK, Rao YK, Geethangili M, Raghavan SC, Ghanta RG
    PLoS One, 2015;10(10):e0141154.
    PMID: 26488879 DOI: 10.1371/journal.pone.0141154
    Andrographis lineata is an herbal medicinal plant used in traditional medicine as a substitute for Andrographis paniculata. Here, using mature leaf explants of A. lineata we demonstrate for the first time the callus induction established on MS medium containing 1.0 mg l-1 IAA. Dried callus was subjected to solvent extraction with acetone. Further the acetone residue was separated by silica gel column chromatography, crystallized and characterized on the basis of nuclear magnetic resonance (proton and c13) and liquid chromatographic mass spectroscopy. This analysis revealed the occurrence of two known flavones namely, 7-O-methylwogonin (MW) and Echioidinin (ED). Furthermore, these compounds were tested for their cytotoxicity against leukemic cell line, CEM. We identify that ED and MW induced cytotoxicity in a time- and concentration-dependent manner. Further increase in the LDH release upon treatment with ED and MW further confirmed our cytotoxicity results against leukemic cell line. Strikingly, MW was more potent than ED when compared by trypan blue and MTT assays. Our results recapitulate the utility of callus cultures for the production of plant specific bioactive secondary metabolites instead of using wild plants. Together, our in vitro studies provide new insights of A. lineata callus cultures serving as a source for cancer chemotherapeutic agents.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  15. Du Boulay D, Shaari K, Skelton BW, Waterman PG, White AH
    Acta Crystallogr C, 2000 Feb;56 ( Pt 2):199-200.
    PMID: 10777886
    Matched MeSH terms: Plants, Medicinal/chemistry*
  16. Yoshikawa K, Tao S, Arihara S
    J Nat Prod, 2000 Apr;63(4):540-2.
    PMID: 10785436
    The stem of Stephanotis floribunda afforded a new cyclic pentapeptide stephanotic acid (1), possessing a novel 6-(leucin-3'-yl) tryptophan skeleton. The structure of 1 was assigned on the basis of extensive NMR experiments and a chemical reaction and shown to be closely related to the bicyclic octapeptide moroidin (3), a toxin from Laportea moroides.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  17. Salehi B, Albayrak S, Antolak H, Kręgiel D, Pawlikowska E, Sharifi-Rad M, et al.
    Int J Mol Sci, 2018 Sep 19;19(9).
    PMID: 30235891 DOI: 10.3390/ijms19092843
    Aloe genus plants, distributed in Old World, are widely known and have been used for centuries as topical and oral therapeutic agents due to their health, beauty, medicinal, and skin care properties. Among the well-investigated Aloe species are A. arborescens, A. barbadensis, A. ferox, and A. vera. Today, they account among the most economically important medicinal plants and are commonly used in primary health treatment, where they play a pivotal role in the treatment of various types of diseases via the modulation of biochemical and molecular pathways, besides being a rich source of valuable phytochemicals. In the present review, we summarized the recent advances in botany, phytochemical composition, ethnobotanical uses, food preservation, and the preclinical and clinical efficacy of Aloe plants. These data will be helpful to provide future directions for the industrial and medicinal use of Aloe plants.
    Matched MeSH terms: Plants, Medicinal/chemistry
  18. Kalshetti MG, Argade NP
    Alkaloids Chem Biol, 2020;83:187-223.
    PMID: 32098650 DOI: 10.1016/bs.alkal.2019.12.001
    The tryptamine-derived polycyclic bridged bioactive indole alkaloids subincanadines A-G were isolated in 2002 by Ohsaki and coworkers from the bark of the Brazilian medicinal plant Aspidosperma subincanum. Kobayashi proposed that subincanadines D-F could be biosynthetically resulting from stemmadenine via two different pathways and, furthermore, that the subincanadines A-C could be biogenetically resulting from subincanadines D and E. Kam and coworkers, in their focused efforts, isolated five indole alkaloids from Malaysian Kopsia arborea species, namely valparicine, apparicine, arboridinine, arborisidine, and arbornamine in combination with subincanadine E. On the basis of structural features, it has been proposed and proved in some examples that subincanadine E is a biogenetic precursor of these five different bioactive indole alkaloids bearing complex structural architectures. All important information on isolation, characterization, bioactivity, probable biogenetic pathways, and more specifically racemic and enantioselective total synthesis of subincanadine alkaloids and their biogenetic congeners are summarized in the present chapter. Special importance is given to the total synthesis and the synthetic strategies intended therein, comprising a set of main reactions.
    Matched MeSH terms: Plants, Medicinal/chemistry*
  19. Ang HH, Sim MK
    Biol Pharm Bull, 1998 Feb;21(2):153-5.
    PMID: 9514610 DOI: 10.1248/bpb.21.153
    The effects of Eurycoma longifolia JACK were studied on the orientation activities of sexually experienced male rats towards receptive females (mounting, licking, anogenital sniffing), environment (exploration, raring, climbing), themselves (genital grooming, non-genital grooming) and mobility (unrestricted, restricted) after dosing them with 200, 400 and 800 mg/kg body weight twice daily for 10 d prior to the test. The results showed that E. longifolia JACK modified the orientation activities of the treated male rats in that they significantly displayed more frequent and vigorous mounting, licking and anogenital sniffing towards the receptive females, and it further intensified self orientation as indicated by the increased grooming of the genitals compared to the controls (p<0.05). In addition, rats treated with 800 mg/kg of methanol, water and butanol extracts of E. longifolia JACK continued to show confinement to a particular area of the cage (around the female), thus showing restriction in movement as compared to the controls (p<0.05). However, the treated males possessed a lack of interest in the external environment as indicated by a reduction in exploration, raring and climbing on the cage wall. Hence, the present study further supports the folk use of E. longifolia JACK as an aphrodisiac.
    Matched MeSH terms: Plants, Medicinal/chemistry
  20. Subramaniam S, Sundarasekar J, Sahgal G, Murugaiyah V
    ScientificWorldJournal, 2014;2014:408306.
    PMID: 24895650 DOI: 10.1155/2014/408306
    The Hymenocallis littoralis, an ornamental and medicinal plant, had been traditionally used for wound healing. In the present study, an analytical method using HPLC with ultraviolet detection was developed for the quantification of lycorine in the extracts of different parts of wild plant and tissue culture samples of H. littoralis. The separation was achieved using a reversed-phase column. The method was found to be accurate, repeatable, and sensitive for the quantification of minute amount of lycorine present in the samples. The highest lycorine content was found in the bulb extract (2.54 ± 0.02 μg/mg) whereas the least was in the root extract (0.71 ± 0.02 μg/mg) of the wild plants. Few callus culture samples had high content of lycorine, comparable to that of wild plants. The results showed that plant growth regulators, 2,4-dichlorophenoxyacetic acid (2,4-D) alone at 4.5 μM (2.58 ± 0.38 μg/mg) or a combination of 2,4-D at 9.00 μM with 4.5 μM of 6-benzylaminopurine (BAP), were the optimum concentrations for the production of high lycorine (2.45 ± 0.15 μg/mg) content in callus culture. The present analytical method could be of value for routine quantification of lycorine in the tissue culture production and standardization of the raw material or extracts of H. littoralis.
    Matched MeSH terms: Plants, Medicinal/chemistry*
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