Displaying publications 1 - 20 of 6084 in total

  1. Kow CS, Hasan SS
    J Hypertens, 2021 04 01;39(4):812-813.
    PMID: 33649284 DOI: 10.1097/HJH.0000000000002778
    Matched MeSH terms: Blood Pressure/drug effects
  2. Abdalla SSI, Katas H, Azmi F, Busra MFM
    Curr Drug Deliv, 2020;17(2):88-100.
    PMID: 31880259 DOI: 10.2174/1567201817666191227094334
    Fast progress in nanoscience and nanotechnology has contributed to the way in which people diagnose, combat, and overcome various diseases differently from the conventional methods. Metal nanoparticles, mainly silver and gold nanoparticles (AgNPs and AuNPs, respectively), are currently developed for many applications in the medical and pharmaceutical area including as antibacterial, antibiofilm as well as anti-leshmanial agents, drug delivery systems, diagnostics tools, as well as being included in personal care products and cosmetics. In this review, the preparation of AgNPs and AuNPs using different methods is discussed, particularly the green or bio- synthesis method as well as common methods used for their physical and chemical characterization. In addition, the mechanisms of the antimicrobial and anti-biofilm activity of AgNPs and AuNPs are discussed, along with the toxicity of both nanoparticles. The review will provide insight into the potential of biosynthesized AgNPs and AuNPs as antimicrobial nanomaterial agents for future use.
    Matched MeSH terms: Biofilms/drug effects
  3. Khalilpourfarshbafi M, Gholami K, Murugan DD, Abdul Sattar MZ, Abdullah NA
    Eur J Nutr, 2019 Feb;58(1):5-25.
    PMID: 29541908 DOI: 10.1007/s00394-018-1663-8
    PROPOSE: Obesity is a fast growing epidemic worldwide. During obesity, the increase in adipose tissue mass arise from two different mechanisms, namely, hyperplasia and hypertrophy. Hyperplasia which is the increase in adipocyte number is characteristic of severe obese patients. Recently, there has been much interest in targeting adipogenesis as therapeutic strategy against obesity. Flavonoids have been shown to regulate several pathways and affect a number of molecular targets during specific stages of adipocyte development.

    METHODS: Presently, we provide a review of key studies evaluating the effects of dietary flavonoids in different stages of adipocyte development with a particular emphasis on the investigations that explore the underlying mechanisms of action of these compounds in human or animal cell lines as well as animal models.

    RESULTS: Flavonoids have been shown to regulate several pathways and affect a number of molecular targets during specific stages of adipocyte development. Although most of the studies reveal anti-adipogenic effect of flavonoids, some flavonoids demonstrated proadipogenic effect in mesenchymal stem cells or preadipocytes.

    CONCLUSION: The anti-adipogenic effect of flavonoids is mainly via their effect on regulation of several pathways such as induction of apoptosis, suppression of key adipogenic transcription factors, activation of AMPK and Wnt pathways, inhibition of clonal expansion, and cell-cycle arrest.

    Matched MeSH terms: Adipogenesis/drug effects*
  4. Mohd Taha MD, Mohd Jaini MF, Saidi NB, Abdul Rahim R, Md Shah UK, Mohd Hashim A
    PLoS One, 2019;14(12):e0224431.
    PMID: 31841519 DOI: 10.1371/journal.pone.0224431
    Dieback disease caused by Erwinia mallotivora is a major threat to papaya plantation in Malaysia. The current study was conducted to evaluate the potential of endophytic lactic acid bacteria (LAB) isolated from papaya seeds for disease suppression of papaya dieback. Two hundred and thirty isolates were screened against E. mallotivora BT-MARDI, and the inhibitory activity of the isolates against the pathogen was ranging from 11.7-23.7 mm inhibition zones. The synergistic experiments revealed that combination of W. cibaria PPKSD19 and Lactococcus lactis subsp. lactis PPSSD39 increased antibacterial activity against the pathogen. The antibacterial activity was partially due to the production of bacteriocin-like inhibitory substances (BLIS). The nursery experiment confirmed that the application of bacterial consortium W. cibaria PPKSD19 and L. lactis subsp. lactis PPSSD39 significantly reduced disease severity to 19% and increased biocontrol efficacy to 69% of infected papaya plants after 18 days of treatment. This study showed that W. cibaria PPKSD19 and L. lactis subsp. lactis PPSSD39 are potential candidate as biocontrol agents against papaya dieback disease.
    Matched MeSH terms: Antibiosis/drug effects; Bacteria/drug effects; Erwinia/drug effects*; Seeds/drug effects; Carica/drug effects*; Lactobacillales/drug effects
  5. Chen CD, Lee HL
    Trop Biomed, 2006 Dec;23(2):220-3.
    PMID: 17322825 MyJurnal
    The bioefficacy of a commercial formulation of temephos, Creek against Aedes aegypti larvae was studied in the laboratory. Earthen jars were filled with 10 L tap water each. One g of temephos (Creek) sand granule formulation was added into each earthen jar as recommended by the manufacturer. The final test concentration of Creek was 1 mg a.i./L. One earthen jar was filled with 10 L tap water and served as a test control (untreated). Thirty late 3(rd) or early 4(th) instar of lab-bred Ae. aegypti larvae were added into each earthen jar. Mortality of the larvae was recorded after 24 hours and percent mortality was calculated. Test was repeated every week. The results showed that complete larval mortality was achieved after 24 hours. The residual effect lasted 15 weeks (105 days), indicating that Creek is effective at the dosage recommended by the manufacturer which is 1 mg a.i./L.
    Matched MeSH terms: Aedes/drug effects*; Larva/drug effects
  6. Phurivethaya Y, Harinasuta C, Hirakoso S, Prownebon S
    Med J Malaya, 1968 Mar;22(3):246.
    PMID: 4234383
    Matched MeSH terms: Behavior, Animal/drug effects*; Culex/drug effects*
  7. Thomas V
    Med J Malaya, 1970 Dec;25(2):142-8.
    PMID: 4396046
    Matched MeSH terms: Larva/drug effects; Culicidae/drug effects
  8. Ahmad AF, Heaselgrave W, Andrew PW, Kilvington S
    J. Eukaryot. Microbiol., 2013 Sep-Oct;60(5):539-43.
    PMID: 23869955 DOI: 10.1111/jeu.12062
    The free-living amoeba Balamuthia mandrillaris causes usually fatal encephalitis in humans and animals. Only limited studies have investigated the efficacy of antimicrobial agents against the organism. Assay methods were developed to assess antimicrobial efficacy against both the trophozoite and cyst stage of B. mandrillaris (ATCC 50209). Amphotericin B, ciclopirox olamine, miltefosine, natamycin, paromomycin, pentamidine isethionate, protriptyline, spiramycin, sulconazole and telithromycin had limited activity with amoebacidal levels of > 135-500 μM. However, diminazene aceturate (Berenil(®) ) was amoebacidal at 7.8 μM and 31.3-61.5 μM for trophozoites and cysts, respectively. Assays for antimicrobial testing may improve the prognosis for infection and aid in the development of primary selective culture isolation media.
    Matched MeSH terms: Cell Survival/drug effects; Spores, Protozoan/drug effects; Balamuthia mandrillaris/drug effects*
  9. Saiful AN, Lau MS, Sulaiman S, Hidayatulfathi O
    Asian Pac J Trop Biomed, 2012 Apr;2(4):315-9.
    PMID: 23569922 DOI: 10.1016/S2221-1691(12)60031-8
    To evaluate the effectiveness and residual effects of trypsin modulating oostatic factor-Bacillus thuringiensis israeliensis (TMOF-Bti) formulations against Aedes aegypti (Ae. aegypti) (L.) larvae at UKM Campus Kuala Lumpur.
    Matched MeSH terms: Aedes/drug effects*; Insect Vectors/drug effects*; Larva/drug effects*
  10. Busra FM, Chowdhury SR, Saim AB, Idrus RB
    Saudi Med J, 2011 Dec;32(12):1311-2.
    PMID: 22159390
    Matched MeSH terms: Cell Survival/drug effects*; Fibroblasts/drug effects; Skin/drug effects*
  11. Jacob A, Parolia A, Pau A, Davamani Amalraj F
    PMID: 26303848 DOI: 10.1186/s12906-015-0814-1
    To evaluate and compare the effects of ethanolic extracts of Malaysian propolis and Brazilian red propolis at different concentrations on the migration and proliferation of fibroblast cells.
    Matched MeSH terms: Cell Movement/drug effects; Fibroblasts/drug effects*; Wound Healing/drug effects*
  12. Lim VK, Halijah MY
    Malays J Pathol, 1993 Jun;15(1):65-8.
    PMID: 8277793
    Cefepime is a new cephalosporin antibiotic which is highly active against both Gram-positive and Gram-negative organisms. The purpose of this study was to establish the in-vitro activity of cefepime and three other cephalosporins against recent clinical isolates from patients at the General Hospital Kuala Lumpur. A total of 334 strains comprising Enterobacteriaceae, non-fermentative Gram-negative bacilli and Staphylococcus aureus were tested for their sensitivity to cefepime, cefotaxime, ceftriaxone and ceftazidime. Minimum inhibitory concentrations of the antibiotics were established using an agar dilution method. With the exception of some strains of Flavobacterium meningosepticum, Xanthomonas maltophilia and other non-fermentative Gram-negative bacilli, cefepime was found to be active against a wide range of Gram-negative organisms. Cefepime was as or more active than the other cephalosporins against Acinetobacter, Enterobacteriaceae and methicillin-sensitive Staphylococcus aureus. Strains of Klebsiella and Salmonella that were resistant to the third generation cephalosporins were sensitive to cefepime. Cefepime could be a valuable alternative for the treatment of nosocomial infections due to multiply resistant organisms.
    Matched MeSH terms: Enterobacteriaceae/drug effects; Gram-Negative Bacteria/drug effects; Staphylococcus aureus/drug effects
  13. Lee YH, Hussain ZA, Choong FP
    PMID: 2125616
    The in-vitro activity of cefotaxime and cefoperazone were compared using clinically isolated Escherichia coli, Klebsiella spp and Pseudomonas aeruginosa. Cefotaxime was found on a weight to weight basis, to be much more active than cefoperazone. All the three species studied show the presence of cefoperazone-resistant population which were sensitive to cefotaxime. The possible mechanisms of resistance to these antibiotics were discussed.
    Matched MeSH terms: Escherichia coli/drug effects*; Klebsiella/drug effects*; Pseudomonas aeruginosa/drug effects*
  14. Anwar A, Khan NA, Siddiqui R
    PLoS Negl Trop Dis, 2019 07;13(7):e0007385.
    PMID: 31348789 DOI: 10.1371/journal.pntd.0007385
    Matched MeSH terms: Acanthamoeba/drug effects*; Oocysts/drug effects*; Trophozoites/drug effects*
  15. Raju SV, Sarkar P, Pasupuleti M, Saraswathi NT, Arasu MV, Al-Dhabi NA, et al.
    PMID: 33465517 DOI: 10.1016/j.cbpc.2021.108974
    Development of antimicrobial drugs against multidrug-resistant (MDR) bacteria is a great focus in recent years. TG12, a short peptide molecule used in this study was screened from tachykinin (Tac) protein of an established teleost Channa striatus (Cs) transcriptome. Tachykinin cDNA has 345 coding sequence, that denotes a protein contained 115 amino acids; in which a short peptide (TG12) was identified at 83-94. Tachykinin mRNA upregulated in C. striatus treated with Aeromonas hydrophila and Escherichia coli lipopolysaccharide (LPS). The mRNA up-regulation was studied using real-time PCR. The up-regulation tachykinin mRNA pattern confirmed the immune involvement of tachykinin in C. striatus during infection. Further, the identified peptide, TG12 was synthesized and its toxicity was demonstrated in hemolytic and cytotoxic assays using human erythrocytes and human dermal fibroblast cells, respectively. The toxicity study exhibited that the toxicity of TG12 was similar to negative control, phosphate buffer saline (PBS). Moreover, the antibiogram of TG12 was active against Klebsiella pneumonia ATCC 27736, a major MDR bacterial pathogen. Further, the antimicrobial activity of TG12 against pathogenic bacteria was screened using minimum inhibitory concentration (MIC) and anti-biofilm assays, altogether TG12 showed potential activity against K. pneumonia. Fluorescence assisted cell sorter flow cytometer analysis (FACS) and field emission scanning electron microscopy (FESEM) was carried on TG12 with K. pneumonia; the results showed that TG12 significantly reduced K. pneumonia viability as well as TG12 disrupt its membrane. In conclusion, TG12 of CsTac is potentially involved in the antibacterial immune mechanisms, which has a prospectus efficiency in pharma industry against MDR strains, especially K. pneumonia.
    Matched MeSH terms: Klebsiella pneumoniae/drug effects*; Biofilms/drug effects*; Drug Resistance, Multiple, Bacterial/drug effects*
  16. Sarmiento ME, Chin KL, Lau NS, Aziah I, Ismail N, Norazmi MN, et al.
    Fish Shellfish Immunol, 2021 Oct;117:148-156.
    PMID: 34358702 DOI: 10.1016/j.fsi.2021.08.001
    Horseshoe crabs (HSCs) are living fossil species of marine arthropods with a long evolutionary history spanning approximately 500 million years. Their survival is helped by their innate immune system that comprises cellular and humoral immune components to protect them against invading pathogens. To help understand the genetic mechanisms involved, the present study utilised the Illumina HiSeq platform to perform transcriptomic analysis of hemocytes from the HSC, Tachypleus gigas, that were challenged with lipopolysaccharides (LPS). The high-throughput sequencing resulted in 352,077,208 and 386,749,136 raw reads corresponding to 282,490,910 and 305,709,830 high-quality mappable reads for the control and LPS-treated hemocyte samples, respectively. Based on the log-fold change of > 0.3 or 
    Matched MeSH terms: Hemocytes/drug effects*; Horseshoe Crabs/drug effects*; Transcriptome/drug effects*
  17. Asiful Islam M, Alam F, Kamal MA, Gan SH, Wong KK, Sasongko TH
    Curr Pharm Des, 2017;23(11):1598-1609.
    PMID: 27875971 DOI: 10.2174/1381612823666161122142950
    Nonsense mutations contribute to approximately 10-30% of the total human inherited diseases via disruption of protein translation. If any of the three termination codons (UGA, UAG and UAA) emerges prematurely [known as premature termination codon (PTC)] before the natural canonical stop codon, truncated nonfunctional proteins or proteins with deleterious loss or gain-of-function activities are synthesized, followed by the development of nonsense mutation-mediated diseases. In the past decade, PTC-associated diseases captured much attention in biomedical research, especially as molecular therapeutic targets via nonsense suppression (i.e. translational readthrough) regimens. In this review, we highlighted different treatment strategies of PTC targeting readthrough therapeutics including the use of aminoglycosides, ataluren (formerly known as PTC124), suppressor tRNAs, nonsense-mediated mRNA decay, pseudouridylation and CRISPR/Cas9 system to treat PTC-mediated diseases. In addition, as thrombotic disorders are a group of disease with major burdens worldwide, 19 potential genes containing a total of 705 PTCs that cause 21 thrombotic disorders have been listed based on the data reanalysis from the 'GeneCards® - Human Gene Database' and 'Human Gene Mutation Database' (HGMD®). These PTC-containing genes can be potential targets amenable for different readthrough therapeutic strategies in the future.
    Matched MeSH terms: Mutation/drug effects*; Suppression, Genetic/drug effects*; Codon, Nonsense/drug effects*
  18. Jahan N, Abd Manan F, Mansoor A, Zaidi MA, Shahwani MN, Javed MA
    ScientificWorldJournal, 2018;2018:8180174.
    PMID: 30356418 DOI: 10.1155/2018/8180174
    Rice production is decreasing by abiotic stresses like heavy metals. In such circumstances, producing food for growing human population is a challenge for plant breeders. Excess of Al3+ in soil has become threat for high yield of rice. Improvement of crop is one of potential solution for high production. The aim of this study was to develop the new method for optimization of Al3+ toxicity tolerance in indica rice at germination stag using two-way ANOVA and Duncan's multiple-range test (DMRT). Seeds of two indica rice cultivars (Pokkali and Pak Basmati) were exposed in different concentrations (control, 5 mM, 15 mM, and 20 mM) of Al3+ toxicity at pH 4 ±0.2 for two weeks. Germination traits such as final germination percentage (FG%), germination energy (GE), germination speed (GS), germination index (GI), mean time of germination (MGT), germination value (GV), germination velocity (GVe), peak value of germination (GPV), and germination capacity (GC) and growth traits such as root length (RL), shoot length (SL), total dry biomass (TDB), and germination vigour index (GVI) were measured. To obtain the maximum number of significance (≤ 0.01%) parameters in each concentration of Al3+ toxicity with control, two-way ANOVA was established and comparison of mean was done using DMRT. The results showed that 5 mM, 10 mM, and 15 mM have less significant effects on the above-mentioned parameters. However, 20 mM concentration of Al3+ produced significant effects (≤ 0.01%). Therefore, 20 mM of Al3+ is considered optimized limit for indica cultivars (Pokkali and Pak Basmati).
    Matched MeSH terms: Oryza/drug effects*; Stress, Physiological/drug effects*; Germination/drug effects*
  19. Abdul Rahim N, Makpol S, Chua KH, Yusof YA, Top GM, Ngah WZ
    Med J Malaysia, 2008 Jul;63 Suppl A:71-2.
    PMID: 19024989
    Stress-induced premature senescence (SIPS) model is in vitro model of cellular aging. In this study, apoptosis was evaluated in SIPS model and in replicative senescent fibroblasts. We also compared the activity of senescence-associated beta-galactosidase (SA-beta gal) as a biomarker of cellular aging. Our results suggested that SIPS model and senescent fibroblasts might share similar mechanism of aging and apoptosis pathway.
    Matched MeSH terms: Aging/drug effects; beta-Galactosidase/drug effects; Fibroblasts/drug effects*; Skin/drug effects*; Skin Physiological Phenomena/drug effects*; Cell Aging/drug effects*; Apoptosis/drug effects*
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