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Genus Pterocarpus: A review of ethnopharmacology, phytochemistry, biological activities, and clinical evidence

Аrbаin D, Saputri GA, Syahputra GS, Widiyastuti Y, Susanti D, Taher M

J Ethnopharmacol, 2021 Oct 05;278:114316.
PMID: 34116190 DOI: 10.1016/j.jep.2021.114316

ETHNOPHARMACOLOGICAL RELEVANCE: The genus Pterocarpus (Fabaceae) has about 46 species that are distributed over Asia, especially Indonesia, Africa, and several countries in America. Particularly, P. indicus and P. santalinus have been recorded as ancestor recipe in the old Indonesian book (Cabe puyang warisan nenek moyang). These plants have found application in traditional medicine, such as in the treatment of inflammatory diseases, gonorrhoea, infection, coughs, mouth ulcers, boils, diarrhoea, as well as in the management of pain (as an analgesic).
AIM OF THE REVIEW: The present review aimed to comprehensively summarise the current researches on the traditional and scientific applications of the genus Pterocarpus with regard to the phytochemical content, in vivo and in vitro bioactivities, as well as clinical evidence that may be useful for future drug development.
MATERIALS AND METHODS: Information about the Pterocarpus genus were obtained from local classic herbal literature and electronic databases, such as PubMed, Scopus, and Google Scholar. The scientific name of the species and its synonyms were checked with the information of The Plant List. Additionally, clinical trial results were obtained from the Cochrane library.
RESULTS: Several phytochemical constituents of the plants, e.g., flavonoids, isoflavonoids, terpenoids, phenolic acids, and fatty acids have been reported. There are about 11 species of Pterocarpus that have been scientifically studied for their biological activities, including anti-inflammatory, anti-microbial, analgesic, and anti-hyperglycemic. Of which, the anti-hyperglycemic activity of the extracts and phytochemicals of P. indicus and P. marsupium is particularly remarkable, allowing them to be further studied under clinical trial.
CONCLUSION: The present review has provided an insight into the traditional applications of the plants and some of them have been validated by scientific evidence, particularly their applications as anti-inflammatory and anti-microbial agents. In addition, the genus has demonstrated notable anti-diabetic activity in various clinical trials.

Matched MeSH terms: Plants, Medicinal/chemistry
Environmental geochemistry of the abandoned Mamut Copper Mine (Sabah) Malaysia

van der Ent A, Edraki M

Environ Geochem Health, 2018 Feb;40(1):189-207.
PMID: 27848090 DOI: 10.1007/s10653-016-9892-3

The Mamut Copper Mine (MCM) located in Sabah (Malaysia) on Borneo Island was the only Cu-Au mine that operated in the country. During its operation (1975-1999), the mine produced 2.47 Mt of concentrate containing approximately 600,000 t of Cu, 45 t of Au and 294 t of Ag, and generated about 250 Mt of overburden and waste rocks and over 150 Mt of tailings, which were deposited at the 397 ha Lohan tailings storage facility, 15.8 km from the mine and 980 m lower in altitude. The MCM site presents challenges for environmental rehabilitation due to the presence of large volumes of sulphidic minerals wastes, the very high rainfall and the large volume of polluted mine pit water. This indicates that rehabilitation and treatment is costly, as for example, exceedingly large quantities of lime are needed for neutralisation of the acidic mine pit discharge. The MCM site has several unusual geochemical features on account of the concomitant occurrence of acid-forming sulphide porphyry rocks and alkaline serpentinite minerals, and unique biological features because of the very high plant diversity in its immediate surroundings. The site hence provides a valuable opportunity for researching natural acid neutralisation processes and mine rehabilitation in tropical areas. Today, the MCM site is surrounded by protected nature reserves (Kinabalu Park, a World Heritage Site, and Bukit Hampuan, a Class I Forest Reserve), and the environmental legacy prevents de-gazetting and inclusion in these protected area in the foreseeable future. This article presents a preliminary geochemical investigation of waste rocks, sediments, secondary precipitates, surface water chemistry and foliar elemental uptake in ferns, and discusses these results in light of their environmental significance for rehabilitation.

Matched MeSH terms: Plants
From Plant Extract to a cDNA Encoding a Glucosyltransferase Candidate: Proteomics and Transcriptomics as Tools to Help Elucidate Saponin Biosynthesis in Centella asiatica

de Costa F, Barber CJ, Reed DW, Covello PS

Methods Mol Biol, 2016;1405:43-8.
PMID: 26843164 DOI: 10.1007/978-1-4939-3393-8_5

Centella asiatica (L.) Urban (Apiaceae), a small annual plant that grows in India, Sri Lanka, Malaysia, and other parts of Asia, is well-known as a medicinal herb with a long history of therapeutic uses. The bioactive compounds present in C. asiatica leaves include ursane-type triterpene sapogenins and saponins-asiatic acid, madecassic acid, asiaticoside, and madecassoside. Various bioactivities have been shown for these compounds, although most of the steps in the biosynthesis of triterpene saponins, including glycosylation, remain uncharacterized at the molecular level. This chapter describes an approach that integrates partial enzyme purification, proteomics methods, and transcriptomics, with the aim of reducing the number of cDNA candidates encoding for a glucosyltransferase involved in saponin biosynthesis and facilitating the elucidation of the pathway in this medicinal plant.

Matched MeSH terms: Plants, Medicinal
Alkaloids from leaves and stem bark of Ervatamia corymbosa

Zèches M, Mesbah K, Loukaci A, Richard B, Schaller H, Sévenet T, et al.

Planta Med, 1995 Feb;61(1):97.
PMID: 7701009
Matched MeSH terms: Plants, Medicinal/chemistry*
Fulltext In Silico Analyses and Cytotoxicity Study of Asiaticoside and Asiatic Acid from Malaysian Plant as Potential mTOR Inhibitors

Zulkipli NN, Zakaria R, Long I, Abdullah SF, Muhammad EF, Wahab HA, et al.

Molecules, 2020 Sep 02;25(17).
PMID: 32887218 DOI: 10.3390/molecules25173991

Natural products remain a popular alternative treatment for many ailments in various countries. This study aimed to screen for potential mammalian target of rapamycin (mTOR) inhibitors from Malaysian natural substance, using the Natural Product Discovery database, and to determine the IC50 of the selected mTOR inhibitors against UMB1949 cell line. The crystallographic structure of the molecular target (mTOR) was obtained from Protein Data Bank, with Protein Data Bank (PDB) ID: 4DRI. Everolimus, an mTOR inhibitor, was used as a standard compound for the comparative analysis. Computational docking approach was performed, using AutoDock Vina (screening) and AutoDock 4.2.6 (analysis). Based on our analysis, asiaticoside and its derivative, asiatic acid, both from Centella asiatica, revealed optimum-binding affinities with mTOR that were comparable to our standard compound. The effect of asiaticoside and asiatic acid on mTOR inhibition was validated with UMB1949 cell line, and their IC50 values were 300 and 60 µM, respectively, compared to everolimus (29.5 µM). Interestingly, this is the first study of asiaticoside and asiatic acid against tuberous sclerosis complex (TSC) disease model by targeting mTOR. These results, coupled with our in silico findings, should prompt further studies, to clarify the mode of action, safety, and efficacy of these compounds as mTOR inhibitors.

Matched MeSH terms: Plants/chemistry*
Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

Zulkernain NH, Uvarajan T, Ng CC

J Environ Manage, 2023 Sep 01;341:117926.
PMID: 37163837 DOI: 10.1016/j.jenvman.2023.117926

Phytoremediation is a biological remediation technique known for low-cost technology and environmentally friendly approach, which employs plants to extract, stabilise, and transform various compounds, such as potentially toxic elements (PTEs), in the soil or water. Recent developments in utilising chelating agents soil remediation have led to a renewed interest in chelate-induced phytoremediation. This review article summarises the roles of various chelating agents and the mechanisms of chelate-induced phytoremediation. This paper also discusses the recent findings on the impacts of chelating agents on PTEs uptake and plant growth and development in phytoremediation. It was found that the chelating agents have increased the rate of metal absorption and translocation up to 45% from roots to the aboveground plant parts during PTEs phytoremediation. Besides, it was also explored that the plants may experience some phytotoxicity after adding chelating agents to the soil. However, due to the leaching potential of synthetic chelating agents, the use of organic chelants have been explored to be used in PTEs phytoremediation. Finally, this paper also presents comprehensive insights on the significance of using chelating agents through SWOT analysis to discuss the advantages and limitations of chelate-induced phytoremediation.

Matched MeSH terms: Plants
Fulltext A Review of Quercus infectoria (Olivier) Galls as a Resource for Anti-parasitic Agents: In Vitro and In Vivo Studies

Zin NNINM, Rahimi WNAWM, Bakar NA

Malays J Med Sci, 2019 Nov;26(6):19-34.
PMID: 31908584 MyJurnal DOI: 10.21315/mjms2019.26.6.3

Parasitic diseases represent one of the causes for significant global economic, environmental and public health impacts. The efficacy of currently available anti-parasitic drugs has been threatened by the emergence of single drug- or multidrug-resistant parasite populations, vector threats and high cost of drug development. Therefore, the discovery of more potent anti-parasitic drugs coming from medicinal plants such as Quercus infectoria is seen as a major approach to tackle the problem. A systematic review was conducted to assess the efficacy of Q. infectoria in treating parasitic diseases both in vitro and in vivo due to the lack of such reviews on the anti-parasitic activities of this plant. This review consisted of intensive searches from three databases including PubMed, Science Direct and Scopus. Articles were selected throughout the years, limited to English language and fully documented. A total of 454 potential articles were identified, but only four articles were accepted to be evaluated based on inclusion and exclusion criteria. Although there were insufficient pieces of evidence to account for the efficacy of Q. infectoria against the parasites, this plant appears to have anti-leishmanial, anti-blastocystis and anti-amoebic activities. More studies in vitro and in vivo are warranted to further validate the anti-parasitic efficacy of Q. infectoria.

Matched MeSH terms: Plants, Medicinal
Fulltext Rubus fruticosus L.: constituents, biological activities and health related uses

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
Application progress of bioactive compounds in microalgae on pharmaceutical and cosmetics

Zhuang D, He N, Khoo KS, Ng EP, Chew KW, Ling TC

Chemosphere, 2022 Mar;291(Pt 2):132932.
PMID: 34798100 DOI: 10.1016/j.chemosphere.2021.132932

Microalgae is an autotrophic organism with fast growth, short reproduction cycle, and strong environmental adaptability. In recent years, microalgae and the bioactive ingredients extracted from microalgae are regarded as potential substitutes for raw materials in the pharmaceutical and the cosmetics industry. In this review, the characteristics and efficacy of the high-value components of microalgae are discussed in detail, along with the sources and extraction technologies of algae used to obtain high-value ingredients are reviewed. Moreover, the latest trends in biotherapy based on high-value algae extracts as materials are discussed. The excellent antioxidant properties of microalgae derivatives are regarded as an attractive replacement for safe and environmentally friendly cosmetics formulation and production. Through further studies, the mechanism of microalgae bioactive compounds can be understood better and reasonable clinical trials conducted can safely conclude the compliance of microalgae-derived drugs or cosmetics to be necessary standards to be marketed.

Matched MeSH terms: Plants
Fulltext Developing a Chinese Medicine programme in a western medical university

Zhou, Wenxin

International e-Journal of Science, Medicine & Education, 2012;6(10):0-0.
MyJurnal

Chinese medicine is one of the most famous traditional medicines in the world with a glorious and long written history of at least 2000 years. Recently, acupuncture and the use of other herbal medicine are being gradually accepted globally. In 2011,the International Medical University (IMU) started the Chinese Medicine programme which is the first of its kind in a western medicine university in Malaysia.The author introduced the background of Chinese medicine and the curriculum of the Chinese Medicine programme established in IMU, analyzed the situation regarding the quality of lectures given by internal and
external lecturers in this programme and also discussed on ways to integrate western and traditional medicine in IMU or in Malaysia. The launching of Chinese medicine in IMU is a great step in the development of IMU and also an important step in the development of medical education in Malaysia or even in South-east Asia.

Matched MeSH terms: Plants, Medicinal
Molecular Characterization of a Geranyl Diphosphate-Specific Prenyltransferase Catalyzing Stilbenoid Prenylation from Morus alba

Zhong Z, Zhu W, Liu S, Guan Q, Chen X, Huang W, et al.

Plant Cell Physiol, 2018 Nov 01;59(11):2214-2227.
PMID: 30020500 DOI: 10.1093/pcp/pcy138

Pharmaceutically active compounds from medical plants are attractive as a major source for new drug development. Prenylated stilbenoids with increased lipophilicity are valuable secondary metabolites which possess a wide range of biological activities. So far, many prenylated stilbenoids have been isolated from Morus alba but the enzyme responsible for the crucial prenyl modification remains unknown. In the present study, a stilbenoid-specific prenyltransferase (PT), termed Morus alba oxyresveratrol geranyltransferase (MaOGT), was identified and functionally characterized in vitro. MaOGT recognized oxyresveratrol and geranyl diphosphate (GPP) as natural substrates, and catalyzed oxyresveratrol prenylation. Our results indicated that MaOGT shared common features with other aromatic PTs, e.g. multiple transmembrane regions, conserved functional domains and targeting to plant plastids. This distinct PT represents the first stilbenoid-specific PT accepting GPP as a natural prenyl donor, and could help identify additional functionally varied PTs in moraceous plants. Furthermore, MaOGT might be applied for high-efficiency and large-scale prenylation of oxyresveratrol to produce bioactive compounds for potential therapeutic applications.

Matched MeSH terms: Plants, Genetically Modified
Influence of anthropogenic disturbances on understory plant diversity of urban forests in Wuhan, Central China

Zhen L, Zhang ZW, Wang YJ, Wang PC, Xu YR, Zhou ZX

Sains Malaysiana, 2012;41:1495-1501.

Relationship between understory plant diversity and anthropogenic disturbances in urban forests of Wuhan City, Central China, was analyzed by diversity analysis and detrended canonical correspondence analysis (DCCA). The results showed that: understory species diversity was higher in suburban area than in urban area. From forest center to edge, species diversity of Luojia hill, Shizi hill and Maan hill forests gradually increased, however, that of Hong hill gradually decreased. Anthropogenic disturbances gradient resulted from visitors flowrate, shrub coverage, aspect and adjacent land types had significant effects on species diversity of shrub and herb layers in urban forests. High anthropogenic disturbances might increase similar non-native herb species in urban area and low disturbances might promote co-existence of wood species in suburban area. Further analysis on types of anthropogenic disturbances and plant functional groups in urban-suburban gradient should be taken into a consideration.

Matched MeSH terms: Plants
Antimicrobial resveratrol tetramers from the stem bark of Vatica oblongifoliassp. oblongifolia

Zgoda-Pols JR, Freyer AJ, Killmer LB, Porter JR

J Nat Prod, 2002 Nov;65(11):1554-9.
PMID: 12444676

Two new resveratrol tetramers, hopeaphenol A (1) and isohopeaphenol A (2), along with the known vaticaphenol A (3), were isolated from the stem bark of Vatica oblongifolia ssp. oblongifolia through bioassay-guided fractionation. The structures and their relative stereochemistry were determined by spectroscopic techniques. Compounds 1 and 3 demonstrated moderate activity against methicillin-resistant Staphylococcus aureus and Mycobacterium smegmatis.

Matched MeSH terms: Plants, Medicinal/chemistry*
In vitro antifilarial effects of three plant species against adult worms of subperiodic Brugia malayi

Zaridah MZ, Idid SZ, Omar AW, Khozirah S

J Ethnopharmacol, 2001 Nov;78(1):79-84.
PMID: 11585692

Five aqueous extracts from three plant species, i.e., dried husks (HX), dried seeds (SX) and dried leaves (LX) of Xylocarpus granatum (Meliaceae), dried stems (ST) of Tinospora crispa (Menispermaceae) and dried leaves (LA) of Andrographis paniculata (Acanthaceae) were tested in vitro against adult worms of subperiodic Brugia malayi. The relative movability (RM) value of the adult worms over the 24-h observation period was used as a measure of the antifilarial activity of the aqueous extracts. SX extract of X. granatum demonstrated the strongest activity, followed by the LA extract of A. paniculata, ST extract of T. crispa, HX extract and LX extract of X. granatum.

Matched MeSH terms: Plants, Medicinal/chemistry*
Heavy metals in soils and crops in Southeast Asia. 1. Peninsular Malaysia

Zarcinas BA, Ishak CF, McLaughlin MJ, Cozens G

Environ Geochem Health, 2004 Dec;26(4):343-57.
PMID: 15719158

In a reconnaisance soil geochemical and plant survey undertaken to study the heavy metal uptake by major food crops in Malaysia, 241 soils were analysed for cation exchange capacity (CEC), organic carbon (C), pH, electrical conductivity (EC) and available phosphorus (P) using appropriate procedures. These soils were also analysed for arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb) and zinc (Zn) using aqua regia digestion, together with 180 plant samples using nitric acid digestion. Regression analysis between the edible plant part and aqua regia soluble soil As, Cd, Cr, Cu, Hg, Ni, Pb and Zn concentrations sampled throughout Peninsular Malaysia, indicated a positive relationship for Pb in all the plants sampled in the survey (R2 = 0.195, p < 0.001), for Ni in corn (R2 = 0.649, p < 0.005), for Cu in chili (R2 = 0.344, p < 0.010) and for Zn in chili (R2 = 0.501, p < 0.001). Principal component analysis of the soil data suggested that concentrations of Co, Ni, Pb and Zn were strongly correlated with concentrations of Al and Fe, which is suggestive of evidence of background variations due to changes in soil mineralogy. Thus the evidence for widespread contamination of soils by these elements through agricultural activities is not strong. Chromium was correlated with soil pH and EC, Na, S, and Ca while Hg was not correlated with any of these components, suggesting diffuse pollution by aerial deposition. However As, Cd, Cu were strongly associated with organic matter and available and aqua regia soluble soil P, which we attribute to inputs in agricultural fertilisers and soil organic amendments (e.g. manures, composts).

Matched MeSH terms: Plants, Edible/chemistry*
Potential effect of herbs on diabetic hypertension: alternative medicine treatment modalities

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
Use Piper sarmentosum as an effective antidiabetic supplement in South East Asia: a review

Zar CT, Teoh SL, Das S, Zaiton Z, Farihah HS

Clin Ter, 2012 Nov;163(6):505-10.
PMID: 23306747

Herbs with antidiabetic activity have a potential role to play. Herbal medicines have been widely used in South East Asia because of lesser side effects and cost effectiveness. The main aim of this review article was to disseminate important information regarding the use of herbal products in oxidative stress involved in diseases like diabetes mellitus. The article highlights some of the traditional medicinal plants which have been widely used in South East Asia with special emphasis on Piper sarmentosum. Piper sarmentosum have been reported to possess varying degree of hypoglycemic, antidiabetic and other additional properties. The antioxidant properties of the herbs may be effective in controlling the oxidative damage produced during diabetes mellitus. The review article highlights the positive role of traditional herbs towards diabetes mellitus and also describes its complications.

Matched MeSH terms: Plants, Medicinal
Fulltext Natural radioactivity content and radionuclides lechability of bricks containing industrial waste

Zalina Laili, Mohd Zaidi Ibrahim, Muhamat Omar

Jurnal Sains Nuklear Malaysia, 2013;25(2):50-60.
MyJurnal

A study has been carried out using a gamma-ray spectrometric system to determine the natural
radioactivity level in bricks made from industrial waste and their associated radiation hazard.
Brick-1 and brick-2 contained waste from coal power plant and granite industry, respectively. The
leachability of radionuclides from these bricks was also investigated. The activity concentration
values of 226Ra,
228Ra,
232Th, and 40K are 64.25, 63.15, 67.9 and 254.19 Bq/kg, respectively in brick-
1, and 193, 164.48, 164.63 and 1348.75 Bq/kg, respectively in brick-2. The radiation hazard
indexes such as radium equivalent activities (Raeq), representative level index (Iγr), external hazard
index (Hex) and internal hazard index (Hin) were calculated and compared with the internationally
approved values. Results indicate that brick-1 showed less radiological hazard than brick-2. This
suggested that brick-1 could be used in building construction without exceeding the proposed
criterion level.The leachability of 226Ra for bricks showed the activity concentration slightly
exceeded 1 Bq/L which is the limit generally used for industrial wastewater.

Matched MeSH terms: Power Plants
Flavonoids: promising natural compounds against viral infections

Zakaryan H, Arabyan E, Oo A, Zandi K

Arch Virol, 2017 Sep;162(9):2539-2551.
PMID: 28547385 DOI: 10.1007/s00705-017-3417-y

Flavonoids are widely distributed as secondary metabolites produced by plants and play important roles in plant physiology, having a variety of potential biological benefits such as antioxidant, anti-inflammatory, anticancer, antibacterial, antifungal and antiviral activity. Different flavonoids have been investigated for their potential antiviral activities and several of them exhibited significant antiviral properties in in vitro and even in vivo studies. This review summarizes the evidence for antiviral activity of different flavonoids, highlighting, where investigated, the cellular and molecular mechanisms of action on viruses. We also present future perspectives on therapeutic applications of flavonoids against viral infections.

Matched MeSH terms: Plants/metabolism; Plants/chemistry
Antinociceptive and anti-inflammatory activities of Dicranopteris linearis leaves chloroform extract in experimental animals

Zakaria ZA, Abdul Ghani ZD, Raden Mohd Nor RN, Gopalan HK, Sulaiman MR, Abdullah FC

Yakugaku Zasshi, 2006 Nov;126(11):1197-203.
PMID: 17077622

The present study was carried out to establish the antinociceptive and anti-inflammatory properties of Dicranopteris linearis leaves chloroform extract in experimental animals. The antinociceptive activity was measured using the abdominal constriction, formalin and hot plate tests, while the anti-inflammatory activity was measured using the carrageenan-induced paw edema. The extract, obtained after 72 h soaking of the air-dried leaves in chloroform followed by evaporation under vacuo (40 degrees C) to dryness, was dissolved in dimethyl sulfoxide to the doses of 20, 100 and 200 mg/kg and administered subcutaneously 30 min prior to subjection to the above mentioned assays. The extract, at all doses used, was found to exhibit significant (p<0.05) antinociceptive activity in a dose-dependent manner. However, the significant (p<0.05) anti-inflammatory activity observed occur in a dose-independent manner. As a conclusion, the chloroform extract of D. linearis possesses antinociceptive and anti-inflammatory activity and thus justify its traditional uses by the Malays to treat various ailments.

Matched MeSH terms: Plants, Medicinal/chemistry*

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