Displaying publications 21 - 40 of 892 in total

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  1. Wang L, Xu J, Yan Y, Liu H, Karunakaran T, Li F
    Artif Cells Nanomed Biotechnol, 2019 Dec;47(1):1617-1627.
    PMID: 31014134 DOI: 10.1080/21691401.2019.1594862
    Nanotechnology has been materialized as a proficient technology for the development of anticancer nanoparticles all the way through an environment-friendly approach. Conventionally, nanoparticles have been assembled by dissimilar methods, but regrettably rely on the negative impact on the natural environment. Amalgamation of nanoparticles by means of plant extract is alternate conservative methods. Scutellaria barbata species was used majorly as food or as medicines against various diseases, and extensive research was conducted for their therapeutic properties. The present research was mainly focused on the synthesis of gold nanoparticles from the Scutellaria barbata by green route method and evaluation of its anticancer activity against pancreatic cancer cell lines (PANC-1). The gold nanoparticles have been characterized by UV-visible spectroscopy, TEM, SAED, AFM, and FTIR analysis. The synthesized gold nanoparticles (AuNPs) possessed effective anticancer activity against pancreatic cancer cell lines (PANC-1). Hence, further research on this plant may lead to the development of novel anticancer drugs which can be used to combat pancreatic cancer.
    Matched MeSH terms: Plant Extracts/chemistry*
  2. Qian L, Su W, Wang Y, Dang M, Zhang W, Wang C
    Artif Cells Nanomed Biotechnol, 2019 Dec;47(1):1173-1180.
    PMID: 30942109 DOI: 10.1080/21691401.2018.1549064
    Cervical cancer is the third most common highest mortality in women worldwide. The use of standard chemotherapeutic drugs against cervical cancer patients received several side effects. Therefore, we focused phytoconsituents-mediated synthesis of gold nanoparticles (AuNPs) considered as greatest attention in the treatment of cervical cancer. In this present study, we reported that green synthesis of AuNPs by using with Alternanthera Sessilis aqueous extract. Synthesis of AuNPs were characterized by UV visible spectroscopy, energy dispersive X-ray (EDX), selected area diffraction pattern (SAED), Fourier transform infrared spectroscopy (FTIR), high-resolution transmission electron microscopy (HR-TEM) and atomic force microscope. Synthesized AuNPs confirmed by the UV absorption maximum at 535 and crystal structure of gold AuNPs was further confirmed by EDX and SAED. TEM and atomic force microscopy images show the size and morphological distribution of nanoparticles. FTIR analysis was confirmed the hydroxyl groups, amine and alkaline groups of biomolecules are present in the AuNPs. Moreover, AuNPs induce cytotoxicity in cervical cancer cells and also induce apoptosis through modulating intrinsic apoptotic mechanisms in cervical cancer cells. This green synthesis of AuNPs from Alternanthera sessilis approach was easy, large scaled up and eco-friendly.
    Matched MeSH terms: Plant Extracts/chemistry*
  3. Zhang X, Tan Z, Jia K, Zhang W, Dang M
    Artif Cells Nanomed Biotechnol, 2019 Dec;47(1):2171-2178.
    PMID: 31159596 DOI: 10.1080/21691401.2019.1620249
    Nanomedicine is a rapidly emerging field and is reported to be a promising tool for treating various diseases. Green synthesized nanoparticles are documented to possess a potent anticancer effect. Rabdosia rubescens is a Chinese plant which is also one of the components of PC-SPES and used to treat prostate cancer. In the present study, we synthesized the gold nanoparticles from R. rubescens (RR-AuNP) and analyzed its anticancer activity against the lung carcinoma A549 cell lines. Since lung cancer is reported to be with increased morbidity and decreased survival rate. The biosynthesized RR-AuNP were confirmed using UV-Visible spectrophotometer, size and shape of RR-AuNP were assessed by DLS, TEM and EDX. The biomolecules present in RR-AuNP and its topographical structure were detected using FTIR, SAED and AFM analysis. MTT assay was performed to detect the IC50 dose of RR-AuNP and its apoptotic effect was assessed by detecting the caspases activation, ROS generation. The anticancer effect of RR-AuNP was confirmed by DAPI staining, TUNEL assay and its molecular mechanism were confirmed by assessing the apoptotic signalling molecules protein expression. Our results illustrate that RR-AuNP showed a strong absorption peak at 550 nm and the RRAuNP were polydispersed nanospheres with size of 130 nm. RR-AuNP IC50 dose against A549 lung carcinoma cell line was detected to be at 25 µg/ml. The results of DAPI staining, TUNEL and immunoblotting analysis confirms both the 25 µg/ml and 50 µg/ml of RR-AuNP possess potent anticancer and apoptotic effect, suggesting that RR-AuNP that it may be a persuasive molecule to treat lung cancer.
    Matched MeSH terms: Plant Extracts/chemistry*
  4. Yakop F, Abd Ghafar SA, Yong YK, Saiful Yazan L, Mohamad Hanafiah R, Lim V, et al.
    Artif Cells Nanomed Biotechnol, 2018;46(sup2):131-139.
    PMID: 29561182 DOI: 10.1080/21691401.2018.1452750
    PURPOSE: The purpose of this study was to investigate apoptotic activity of silver nanoparticle Clinacanthus nutans (AgNps-CN) towards HSC-4 cell lines (oral squamous cell carcinoma cell lines).

    METHODS: Methods involved were MTT assay (cytotoxic activity), morphological cells analysis, flow cytometry and cell cycle analysis and western blot.

    RESULTS: MTT assay revealed IC50 concentration was 1.61 µg/mL, 3T3-L1 cell lines were used to determine whether AgNps-CN is cytotoxic to normal cells. At the highest concentration (3 µg/mL), no cytotoxic activity has been observed. Flow cytometry assay revealed AgNps-CN caused apoptosis effects towards HSC-4 cell lines with significant changes were observed at G1 phase when compared with untreated cells. Morphological cells analysis revealed that most of the cells exhibit apoptosis characteristics rather than necrosis. Protein study revealed that ratio of Bax/Bcl-2 increased mainly due to down-regulation of Bcl-2 expression.

    CONCLUSION: AgNps-CN have shown potential in inhibiting HSC-4 cell lines. IC50 was low compared to few studies involving biosynthesized of silver nanoparticles. Apoptosis effects were shown towards HSC-4 cell lines by the increased in Bax/Bcl-2 protein ratio. Further study such as PCR or in vivo studies are required.

    Matched MeSH terms: Plant Extracts/chemistry
  5. Mohamad Hanafiah R, Abd Ghafar SA, Lim V, Musa SNA, Yakop F, Hairil Anuar AH
    Artif Cells Nanomed Biotechnol, 2023 Dec;51(1):549-559.
    PMID: 37847252 DOI: 10.1080/21691401.2023.2268167
    This study aims to characterize and determine the antibacterial activities of synthesized Strobilanthes crispus-mediated AgNPs (SC-AgNPs) against Streptococcus mutans, Escherichia coli and Pseudomonas aeruginosa. S. crispus water extract acts as a reducing and capping agent in the synthesis of AgNPs. The synthesized AgNPs were characterized by using UV-Vis spectrophotometer, dynamic light scattering (DLS), field emission scanning electron microscope (FESEM), X-ray diffractometer (XRD) and Fourier transform infra-red (FTIR). FESEM images showed a rough surface with a spherical shape. The average size distribution of 75.25 nm with a polydispersity index (PDI) of 0.373. XRD analysis matched the face-centred cubic structure of silver. FTIR analysis revealed a shifted peak from 1404.99 to 1345.00 cm-1. MIC and MBC values of SC-AgNPs were 1.25 mg/mL and 2.5 mg/mL against E. coli, P. aeruginosa and S. mutans, respectively. Time-kill assay showed that SC-AgNPs significantly reduced bacterial growth as compared to non-treated bacteria. Morphologies of bacteria treated with SC-AgNPs were shrunk, lysed, irregular and smaller as compared to control. SC-AgNPs significantly disrupted the gene expression of eae A, gtf B and Pel A (p 
    Matched MeSH terms: Plant Extracts/chemistry
  6. Alabsi AM, Ali R, Ali AM, Harun H, Al-Dubai SA, Ganasegeran K, et al.
    Asian Pac J Cancer Prev, 2013;14(11):6273-80.
    PMID: 24377517
    Goniothalamin, a natural compound extracted from Goniothalamus sp. belonging to the Annonacae family, possesses anticancer properties towards several tumor cell lines. This study focused on apoptosis induction by goniothalamin (GTN) in the Hela cervical cancer cell line. Cell growth inhibition was measured by MTT assay and the IC50 value of goniothalamin was 3.2 ± 0.72 μg/ml. Morphological changes and biochemical processes associated with apoptosis were evident on phase contrast microscopy and fluorescence microscopy. DNA fragmentation, DNA damage, caspase-9 activation and a large increase in the sub-G1 and S cell cycle phases confirmed the occurrence of apoptosis in a time-dependent manner. It could be concluded that goniothalamin show a promising cytotoxicity effect against cervical cancer cells (Hela) and the cell death mode induced by goniothalamin was apoptosis.
    Matched MeSH terms: Plant Extracts/chemistry
  7. Amid A, Wan Chik WD, Jamal P, Hashim YZ
    Asian Pac J Cancer Prev, 2012;13(12):6319-25.
    PMID: 23464452
    We previously found cytotoxic effects of tomato leaf extract (TLE) on the MCF-7 breast cancer cell line. The aim of this study was to ascertain the molecular mechanisms associated with the usage of TLE as an anticancer agent by microarray analysis using mRNA from MCF-7 breast cancer cells after treatment with TLE for 1 hr and 48 hrs. Approximately 991 genes out of the 30,000 genes in the human genome were significantly (p<0.05) changed after the treatment. Within this gene set, 88 were significantly changed between the TLE treated cells and the untreated MCF-7 cells (control cells) with a cut-off fold change >2.00. In order to focus on genes that were involved in cancer cell growth, only twenty-nine genes were selected, either down-regulated or up-regulated after treatment with TLE. Microarray assay results were confirmed by analyzing 10 of the most up and down regulated genes related to cancer cells progression using real-time PCR. Treatment with TLE induced significant up-regulation in the expression of the CRYAB, PIM1, BTG1, CYR61, HIF1-α and CEBP-β genes after 1 hr and 48 hrs, whereas the TXNIP and THBS1 genes were up-regulated after 1 hr of treatment but down-regulated after 48 hrs. In addition both the HMG1L1 and HIST2H3D genes were down-regulated after 1 hr and 48 hrs of treatment. These results demonstrate the potent activity of TLE as an anticancer agent.
    Matched MeSH terms: Plant Extracts/chemistry
  8. Ping KY, Darah I, Chen Y, Sasidharan S
    Asian Pac J Trop Biomed, 2013 Sep;3(9):692-6.
    PMID: 23998008 DOI: 10.1016/S2221-1691(13)60140-9
    To evaluate the cytotoxicity and genotoxicity activity of Euphorbia hirta (E. hirta) in MCF-7 cell line model using comet assay.
    Matched MeSH terms: Plant Extracts/chemistry
  9. Kamiabi F, Jaal Z, Keng CL
    Asian Pac J Trop Biomed, 2013 Oct;3(10):767-75.
    PMID: 24075340 DOI: 10.1016/S2221-1691(13)60153-7
    To evaluate the growth inhibition activity of the crude extract of Cyperus aromaticus (C. aromaticus) cultured cells against the 3rd instar larvae of Aedes aegypti (Linn.) and Aedes albopictus Skuse (Ae. albopictus) under laboratory conditions, and determine the sublethal effects (EI50) of the crude extract of C. aromaticus cultured cells on some biological and morphological parameters of both Aedes mosquito species during two generations as well.
    Matched MeSH terms: Plant Extracts/chemistry
  10. Arifullah M, Namsa ND, Mandal M, Chiruvella KK, Vikrama P, Gopal GR
    Asian Pac J Trop Biomed, 2013 Aug;3(8):604-10; discussion 609-10.
    PMID: 23905016 DOI: 10.1016/S2221-1691(13)60123-9
    To evaluate the anti-bacterial and anti-oxidant activity of andrographolide (AND) and echiodinin (ECH) of Andrographis paniculata.
    Matched MeSH terms: Plant Extracts/chemistry*
  11. Algariri K, Meng KY, Atangwho IJ, Asmawi MZ, Sadikun A, Murugaiyah V, et al.
    Asian Pac J Trop Biomed, 2013 May;3(5):358-66.
    PMID: 23646298 DOI: 10.1016/S2221-1691(13)60077-5
    To study the antidiabetic activity of Gynura procumbens (G. procumbens) used in the traditional management of diabetes in Southern Asia.
    Matched MeSH terms: Plant Extracts/chemistry
  12. Chew AL, Jessica JJ, Sasidharan S
    Asian Pac J Trop Biomed, 2012 Mar;2(3):176-80.
    PMID: 23569893 DOI: 10.1016/S2221-1691(12)60037-9
    To evaluate antioxidant, antimicrobial and cytotoxic activity of different parts (root, flower, leaf and stem) of Leucas aspera (L. aspera) (Labiatae).
    Matched MeSH terms: Plant Extracts/chemistry
  13. Hanifah AL, Awang SH, Ho TM, Abidin SZ, Omar MH
    Asian Pac J Trop Biomed, 2011 Oct;1(5):365-9.
    PMID: 23569794 DOI: 10.1016/S2221-1691(11)60081-6
    To examine the acaricidal effects of the essential oil of Cymbopogon citratus leaf extract (lemongrass) and ethanolic Azadirachta indica leaf extract (neem) against house dust mites Dermatophagoides farinae (D. farinae) and Dermatophagoides pteronyssinus (D. pteronyssinus).
    Matched MeSH terms: Plant Extracts/chemistry
  14. Basma AA, Zuraini Z, Sasidharan S
    Asian Pac J Trop Biomed, 2011 Jan;1(1):20-2.
    PMID: 23569719 DOI: 10.1016/S2221-1691(11)60062-2
    To determine the major changes in the microstructure of Candida albicans (C. albicans) after treatment with Euphorbia hirta (E. hirta) L. leaf extract.
    Matched MeSH terms: Plant Extracts/chemistry
  15. Hossain MA, Shah MD, Sakari M
    Asian Pac J Trop Med, 2011 Aug;4(8):637-41.
    PMID: 21914542 DOI: 10.1016/S1995-7645(11)60162-4
    OBJECTIVE: To analyse the chemical composition of different extracts of Merremia borneensis (M. borneensis) by gas chromatography-mass spectrometry (GC-MS).

    METHODS: The dried leaves powder was extracted with methanol at room temperature by using Soxhlet extractor. Methanol crude extracts of M. borneensis were extrastel with hexane, chloroform, ethyl acetate and butanol.

    RESULTS: Qualitative analyses of various organic crude extracts showed that majority of these are flavonoids, terpeniods, alkaloids and glycosides. Most of the identified compounds by GC-MS are biologically important. Further the M. borneensis leaf possesses certain characteristics that can be ascribed to cultivation on a domestic plantation.

    CONCLUSIONS: The suitable extracts for respective compounds can be chosen on the basis of above GC-MS analysis. All the major compounds from different extracts are biologically active molecules. Thus the identification of a good number of compounds from various extracts M. borneensis might have some ecological significance.

    Matched MeSH terms: Plant Extracts/chemistry
  16. Mayakrishnan V, Veluswamy S, Sundaram KS, Kannappan P, Abdullah N
    Asian Pac J Trop Med, 2013 Jan;6(1):20-6.
    PMID: 23317881 DOI: 10.1016/S1995-7645(12)60195-3
    OBJECTIVE: To elucidate free radical scavenging activity of ethanolic extract Lagenaria siceraria (L. siceraria) (Molina) fruit.

    METHODS: The free radical scavenging activity of the L. siceraria (Molina) fruit extract was assayed by using α,α-diphenyl-β-picrylhydrazyl (DPPH), 2,20-azinobis 3-ethyl benzothiazoline-6-sulfonate (ABTS), FRAP, reducing power, chelating ability and β-carotene bleaching assay.

    RESULTS: The IC(50) values of DPPH and ABTS radical-scavenging activity was found to be 1.95 mg/mL and 19 mg/mL, respectively. In ferrous chelation assay, the percentage of inhibition was found to be 89.21%. The reducing power of ethanolic extract of L. siceraria (Molina) fruit was 0.068 at 1 mg/mL and increased to 0.192 at 5 mg/mL. The β-carotene linoleate bleaching assay was 46.7% at 5 mg/mL and antioxidant activity using FRAP at 0.305 for 1 mg/mL to 0.969 for 5 mg/mL.

    CONCLUSIONS: The results indicate that L. siceraria (Molina) fruit could be an important sources of natural radical scavengers.

    Matched MeSH terms: Plant Extracts/chemistry
  17. Aisha AF, Majid AM, Ismail Z
    BMC Biotechnol, 2014;14:23.
    PMID: 24674107 DOI: 10.1186/1472-6750-14-23
    O. stamineus is a medicinal herb with remarkable pharmacological properties. However, poor solubility of the active principles limits its medicinal value. This study sought to prepare nano liposomes of OS ethanolic extract in unpurified soybean phospholipids in order to improve its solubility and permeability. OS liposomes were prepared by the conventional film method, and were characterized for solubility, entrapment efficiency, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), particle size and zeta potential, release, absorption in everted rat intestinal sacs, and DPPH scavenging effect.
    Matched MeSH terms: Plant Extracts/chemistry*
  18. Othman AR, Abdullah N, Ahmad S, Ismail IS, Zakaria MP
    PMID: 25652309 DOI: 10.1186/s12906-015-0528-4
    BACKGROUND: The Jatropha curcas plant or locally known as "Pokok Jarak" has been widely used in traditional medical applications. This plant is used to treat various conditions such as arthritis, gout, jaundice, wound and inflammation. However, the nature of compounds involved has not been well documented. Hence, this study was conducted to investigate the anti-inflammatory activity of different parts of J. curcas plant and to identify the active compounds involved.
    METHODS: In this study, methanol (80%) extraction of four different parts (leaves, fruits, stem and root) of J. curcas plant was carried out. Phenolic content of each part was determined by using Folin-Ciocalteau reagent. Gallic acid was used as the phenol standard. Each plant part was screened for anti-inflammatory activity using cultured macrophage RAW 264.7 cells. The active plant part was then partitioned with hexane, chloroform, ethyl acetate and water. Each partition was again screened for anti-inflammatory activity. The active partition was then fractionated using an open column chromatography system. Single spots isolated from column chromatography were assayed for anti-inflammatory and cytotoxicity activities. Spots that showed activity were subjected to gas chromatography mass spectrophotometry (GC-MS) analysis for identification of active metabolites.
    RESULTS: The hexane partition from root extract showed the highest anti-inflammatory activity. However, it also showed high cytotoxicity towards RAW 264.7 cells at 1 mg/mL. Fractionation process using column chromatography showed five spots. Two spots labeled as H-4 and H-5 possessed anti-inflammatory activity, without cytotoxicity activity. Analysis of both spots by GC-MS showed the presence of hexadecanoic acid methyl ester, octadecanoic acid methyl ester and octadecanoic acid.
    CONCLUSION: This finding suggests that hexadecanoic acid methyl ester, octadecanoic acid methyl ester and octadecanoic acid could be responsible for the anti-inflammatory activity of the J. curcas root extract.
    Matched MeSH terms: Plant Extracts/chemistry
  19. Rouhollahi E, Zorofchian Moghadamtousi S, Paydar M, Fadaeinasab M, Zahedifard M, Hajrezaie M, et al.
    PMID: 25652758 DOI: 10.1186/s12906-015-0534-6
    BACKGROUND: Curcuma purpurascens BI. (Zingiberaceae) commonly known as 'Koneng Tinggang' and 'Temu Tis' is a Javanese medicinal plant which has been used for numerous ailments and diseases in rural Javanese communities. In the present study, the apoptogenic activity of dichloromethane extract of Curcuma purpurascens BI. rhizome (DECPR) was investigated against HT-29 human colon cancer cells.
    METHODS: Acute toxicity study of DECPR was performed in Sprague-Dawley rats. Compounds of DECPR were analyzed by the gas chromatography-mass spectrometry-time of flight (GC-MS-TOF) analysis. Cytotoxic effect of DECPR on HT-29 cells was analyzed by MTT and lactate dehydrogenase (LDH) assays. Effects of DECPR on reactive oxygen species (ROS) formation and mitochondrial-initiated events were investigated using a high content screening system. The activities of the caspases were also measured using a fluorometric assay. The quantitative PCR analysis was carried out to examine the gene expression of Bax, Bcl-2 and Bcl-xl proteins.
    RESULTS: The in vivo acute toxicity study of DECPR on rats showed the safety of this extract at the highest dose of 5 g/kg. The GC-MS-TOF analysis of DECPR detected turmerone as the major compound in dichloromethane extract. IC50 value of DECPR towards HT-29 cells after 24 h treatment was found to be 7.79 ± 0.54 μg/mL. In addition, DECPR induced LDH release and ROS generation in HT-29 cells through a mechanism involving nuclear fragmentation and cytoskeletal rearrangement. The mitochondrial-initiated events, including collapse in mitochondrial membrane potential and cytochrome c leakage was also triggered by DECPR treatment. Initiator caspase-9 and executioner caspase-3 was dose-dependently activated by DECPR. The quantitative PCR analysis on the mRNA expression of Bcl-2 family of proteins showed a significant up-regulation of Bax associated with down-regulation in Bcl-2 and Bcl-xl mRNA expression.
    CONCLUSIONS: The findings presented in the current study showed that DECP suppressed the proliferation of HT-29 colon cancer cells and triggered the induction of apoptosis through mitochondrial-dependent pathway.
    Matched MeSH terms: Plant Extracts/chemistry
  20. Ghasemzadeh A, Jaafar HZ, Karimi E, Rahmat A
    PMID: 25169626 DOI: 10.1186/1472-6882-14-318
    Extraction prior to component analysis is the primary step in the recovery and isolation of bioactive phytochemicals from plant materials.
    Matched MeSH terms: Plant Extracts/chemistry
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