Browse publications by year: 2017

  1. Chua SH, Ong SCL, Liew YH
    BMJ Case Rep, 2017 Dec 22;2017.
    PMID: 29275396 DOI: 10.1136/bcr-2017-223371
    Internal jugular vein (IJV) aneurysm is a rare entity, and a thrombosed aneurysm poses diagnostic and management challenges. We came across a 53-year-old woman who presented with fever, vomiting and right neck swelling for a week. Laboratory investigations showed neutrophilic leucocytosis, raised acute phase reactant and blood culture yielded Klebsiella pneumoniae Ultrasound and contrast-enhanced CT neck revealed a large fusiform aneurysm of the right IJV with filling defect extending from the aneurysm into the right transverse sinus. There was a cavity at the right lower third molar tooth. MRI confirmed the findings with additional enhancing focus at right lower periodontal region. The swelling reduced after 2 weeks of medical therapy, and follow-up imaging 4 months later showed complete resolution of the aneurysm with residual thrombosis. After extensive workup, dental infection remains the only identifiable primary source leading to thrombophlebitis of the right IJV and subsequent sequelae.
    MeSH terms: Aneurysm/diagnosis*; Aneurysm/drug therapy; Anti-Bacterial Agents; Anticoagulants/administration & dosage; Ceftriaxone/administration & dosage; Female; Humans; Jugular Veins/pathology*; Klebsiella pneumoniae/isolation & purification; Metronidazole; Middle Aged; Tomography, X-Ray Computed; Tooth Diseases/complications; Tooth Diseases/microbiology; Enoxaparin/administration & dosage; Lemierre Syndrome/diagnosis*; Lemierre Syndrome/drug therapy; Lemierre Syndrome/etiology
  2. Deverell L, Meyer D, Lau BT, Al Mahmud A, Sukunesan S, Bhowmik J, et al.
    BMJ Open, 2017 12 21;7(12):e018140.
    PMID: 29273657 DOI: 10.1136/bmjopen-2017-018140
    INTRODUCTION: Orientation and mobility (O&M) specialists assess the functional vision and O&M skills of people with mobility problems, usually relating to low vision or blindness. There are numerous O&M assessment checklists but no measures that reduce qualitative assessment data to a single comparable score suitable for assessing any O&M client, of any age or ability, in any location. Functional measures are needed internationally to align O&M assessment practices, guide referrals, profile O&M clients, plan appropriate services and evaluate outcomes from O&M programmes (eg, long cane training), assistive technology (eg, hazard sensors) and medical interventions (eg, retinal implants). This study aims to validate two new measures of functional performance vision-related outcomes in orientation and mobility (VROOM) and orientation and mobility outcomes (OMO) in the context of ordinary O&M assessments in Australia, with cultural comparisons in Malaysia, also developing phone apps and online training to streamline professional assessment practices.

    METHODS AND ANALYSIS: This multiphase observational study will employ embedded mixed methods with a qualitative/quantitative priority: corating functional vision and O&M during social inquiry. Australian O&M agencies (n=15) provide the sampling frame. O&M specialists will use quota sampling to generate cross-sectional assessment data (n=400) before investigating selected cohorts in outcome studies. Cultural relevance of the VROOM and OMO tools will be investigated in Malaysia, where the tools will inform the design of assistive devices and evaluate prototypes. Exploratory and confirmatory factor analysis, Rasch modelling, cluster analysis and analysis of variance will be undertaken along with descriptive analysis of measurement data. Qualitative findings will be used to interpret VROOM and OMO scores, filter statistically significant results, warrant their generalisability and identify additional relevant constructs that could also be measured.

    ETHICS AND DISSEMINATION: Ethical approval has been granted by the Human Research Ethics Committee at Swinburne University (SHR Project 2016/316). Dissemination of results will be via agency reports, journal articles and conference presentations.

    MeSH terms: Australia; Blindness/rehabilitation*; Cross-Sectional Studies; Female; Humans; Malaysia; Male; Orientation*; Prospective Studies; Research Design; Self-Help Devices*; Severity of Illness Index; Technology*; Vision, Low/rehabilitation*; Outcome Assessment (Health Care); Mobility Limitation*
  3. Yadav S, Narasimhan B, Lim SM, Ramasamy K, Vasudevan M, Shah SAA, et al.
    Chem Cent J, 2017 Dec 22;11(1):137.
    PMID: 29274036 DOI: 10.1186/s13065-017-0361-6
    BACKGROUND: A series of 2-(1H-benzo[d]imidazol-2-ylthio)-N-(substituted 4-oxothiazolidin-3-yl) acetamides was synthesized and characterized by physicochemical and spectral means. The synthesized compounds were evaluated for their in vitro antimicrobial activity against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Candida albicans and Aspergillus niger by tube dilution method. The in vitro cytotoxicity study of the compounds was carried out against human colorectal (HCT116) cell line. The most promising anticancer derivatives (5l, 5k, 5i and 5p) were further docked to study their binding efficacy to the active site of the cyclin-dependent kinase-8.

    RESULTS: All the compounds possessed significant antimicrobial activity with MIC in the range of 0.007 and 0.061 µM/ml. The cytotoxicity study revealed that almost all the derivatives were potent in inhibiting the growth of HCT116 cell line in comparison to the standard drug 5-fluorouracil. Compounds 5l and 5k (IC50 = 0.00005 and 0.00012 µM/ml, respectively) were highly cytotoxic towards HCT116 cell line in comparison to 5-fluorouracil (IC50 = 0.00615 µM/ml) taken as standard drug.

    CONCLUSION: The molecular docking studies of potent anticancer compounds 5l, 5k, 5i and 5p showed their putative binding mode and significant interactions with cyclin-dependent kinase-8 as prospective agents for treating colon cancer.

  4. Yong YL, Tan LK, McLaughlin RA, Chee KH, Liew YM
    J Biomed Opt, 2017 12;22(12):1-9.
    PMID: 29274144 DOI: 10.1117/1.JBO.22.12.126005
    Intravascular optical coherence tomography (OCT) is an optical imaging modality commonly used in the assessment of coronary artery diseases during percutaneous coronary intervention. Manual segmentation to assess luminal stenosis from OCT pullback scans is challenging and time consuming. We propose a linear-regression convolutional neural network to automatically perform vessel lumen segmentation, parameterized in terms of radial distances from the catheter centroid in polar space. Benchmarked against gold-standard manual segmentation, our proposed algorithm achieves average locational accuracy of the vessel wall of 22 microns, and 0.985 and 0.970 in Dice coefficient and Jaccard similarity index, respectively. The average absolute error of luminal area estimation is 1.38%. The processing rate is 40.6 ms per image, suggesting the potential to be incorporated into a clinical workflow and to provide quantitative assessment of vessel lumen in an intraoperative time frame.
    MeSH terms: Aged; Algorithms; Female; Humans; Image Interpretation, Computer-Assisted/methods*; Male; Middle Aged; Linear Models; Neural Networks (Computer)*; Tomography, Optical Coherence/methods*; Endovascular Procedures/methods*
  5. Yee SF, Chu CH, Poili E, Sum MSH
    J Virol Methods, 2017 02;240:69-72.
    PMID: 27923590 DOI: 10.1016/j.jviromet.2016.12.001
    Rice tungro disease (RTD) is a recurring disease affecting rice farming especially in the South and Southeast Asia. The disease is commonly diagnosed by visual observation of the symptoms on diseased plants in paddy fields and by polymerase chain reaction (PCR). However, visual observation is unreliable and PCR can be costly. High-throughput as well as relatively cheap detection methods are important for RTD management for screening large number of samples. Due to this, detection by serological assays such as immunoblotting assays and enzyme-linked immunosorbent assay are preferred. However, these serological assays are limited by lack of continuous supply of antibodies as reagents due to the difficulty in preparing sufficient purified virions as antigens. This study aimed to generate and evaluate the reactivity of the recombinant coat proteins of Rice tungro bacilliform virus (RTBV) and Rice tungro spherical virus (RTSV) as alternative antigens to generate antibodies. The genes encoding the coat proteins of both viruses, RTBV (CP), and RTSV (CP1, CP2 and CP3) were cloned and expressed as recombinant fusion proteins in Escherichia coli. All of the recombinant fusion proteins, with the exception of the recombinant fusion protein of the CP2 of RTSV, were reactive against our in-house anti-tungro rabbit serum. In conclusion, our study showed the potential use of the recombinant fusion coat proteins of the tungro viruses as alternative antigens for production of antibodies for diagnostic purposes.
    MeSH terms: Animals; Antibodies, Viral/biosynthesis; Antigens, Viral/genetics*; Antigens, Viral/immunology*; Asia, Southeastern; Cloning, Molecular; Enzyme-Linked Immunosorbent Assay; Escherichia coli/genetics*; Plant Diseases/virology; Rabbits; Recombinant Fusion Proteins/immunology; Oryza/virology; RNA, Viral/genetics; Waikavirus/genetics*; Waikavirus/immunology; Waikavirus/isolation & purification; Waikavirus/chemistry; Capsid Proteins/genetics*; Capsid Proteins/immunology*
  6. Tajul Arifin K, Sulaiman S, Md Saad S, Ahmad Damanhuri H, Wan Ngah WZ, Mohd Yusof YA
    BMC Cancer, 2017 12 21;17(1):879.
    PMID: 29268718 DOI: 10.1186/s12885-017-3883-3
    BACKGROUND: Chlorella vulgaris (ChV), a unicellular green algae has been reported to have anticancer and antioxidant effects. The aim of this study was to determine the chemopreventive effect of ChV on liver cancer induced rats by determining the level and expression of several liver tumour markers.

    METHODS: Male Wistar rats (200-250 g) were divided into 4 groups according to the diet given: control group (normal diet), ChV group with three different doses (50, 150 and 300 mg/kg body weight), liver cancer- induced group (choline deficient diet + 0.1% ethionine in drinking water or CDE group), and the treatment group (CDE group treated with three different doses of ChV). Rats were killed at 0, 4, 8 and 12 weeks of experiment and blood and tissue samples were taken from all groups for the determination of tumour markers expression alpha-fetoprotein (AFP), transforming growth factor-β (TGF-β), M2-pyruvate kinase (M2-PK) and specific antigen for oval cells (OV-6).

    RESULTS: Serum level of TGF-β increased significantly (p < 0.05) in CDE rats. However, ChV at all doses managed to decrease (p < 0.05) its levels to control values. Expressions of liver tumour markers AFP, TGF-β, M2-PK and OV-6 were significantly higher (p < 0.05) in tissues of CDE rats when compared to control showing an increased number of cancer cells during hepatocarcinogenesis. ChV at all doses reduced their expressions significantly (p < 0.05).

    CONCLUSIONS: Chlorella vulgaris has chemopreventive effect by downregulating the expression of tumour markers M2-PK, OV-6, AFP and TGF-β, in HCC-induced rats.

    MeSH terms: alpha-Fetoproteins/metabolism; Animals; Antigens, Differentiation/metabolism; Choline Deficiency/complications; Diet/adverse effects*; Carcinoma, Hepatocellular/etiology; Carcinoma, Hepatocellular/metabolism; Carcinoma, Hepatocellular/pathology; Carcinoma, Hepatocellular/prevention & control*; Liver Neoplasms/etiology; Liver Neoplasms/metabolism; Liver Neoplasms/pathology; Liver Neoplasms/prevention & control*; Male; Plant Extracts/pharmacology*; Pyruvate Kinase/metabolism; Biomarkers, Tumor/metabolism*; Gene Expression Regulation, Neoplastic/drug effects*; Rats, Wistar; Chlorella vulgaris/chemistry*; Rats; Transforming Growth Factor beta1/metabolism
  7. El Kishawi RR, Soo KL, Abed YA, Muda WAMW
    BMC Pediatr, 2017 12 21;17(1):210.
    PMID: 29268788 DOI: 10.1186/s12887-017-0957-y
    BACKGROUND: Stunting continues to be a major public health problem in developing countries. It is one of the most important risk factors for morbidity and mortality during childhood. In Palestine, it is another health problem, which adds to the catastrophic issues in the region. This study aimed to determine the prevalence of stunting and its associated factors among preschool children in the Gaza Strip.

    METHODS: A cross-sectional study design was conducted in the Gaza Strip. A total of 357 children aged 2-5 years and their mothers aged 18-50 years were recruited. A multistage cluster sampling was used in the selection of the study participants from three geographical areas in the Gaza Strip: Jabalia refugee camp, El Remal urban area, and Al Qarara rural area. A structured questionnaire was used for face- to -face interviews with the respective child's mother to collect sociodemographic information and feeding practice. Anthropometric measurements for children were taken to classify height-for-age (HAZ), while maternal height was measured as well. Descriptive and binary logistic regression analyses were applied to determine the prevalence and associated factors with stunting.

    RESULTS: The total prevalence of stunting in this study was 19.6%, with the highest prevalence being (22.6%) in Jabalia refugee camp. It turns out that shorter mothers had increased the odds of stunting in preschool children in the Gaza Strip. Children born to mothers whose height was 1.55-1.60 m or <1.55 m were more likely to be stunted (p = 0. 008), or (p 1.60 m. Moreover, parental consanguinity increased the risk of stunted children (p = 0. 015).

    CONCLUSIONS: This study showed the prevalence of stunting was of alarming magnitude in the Gaza Strip. Our results also demonstrated that parental consanguinity and short maternal stature were associated with stunting. Culturally appropriate interventions and appropriate strategies should be implemented to discourage these types of marriages. Policy makers must also raise awareness of the importance of the prevention and control of nutritional problems to combat stunting among children in the Gaza Strip.

    MeSH terms: Body Height; Child, Preschool; Consanguinity; Cross-Sectional Studies; Female; Growth Disorders/epidemiology*; Humans; Male; Middle East/epidemiology; Mothers; Nutritional Status; Risk Factors; Socioeconomic Factors; Prevalence; Malnutrition/epidemiology
  8. Bahadoran A, Ebrahimi M, Yeap SK, Safi N, Moeini H, Hair-Bejo M, et al.
    Int J Nanomedicine, 2017;12:8573-8585.
    PMID: 29270010 DOI: 10.2147/IJN.S139126
    This study was aimed to evaluate the immunogenicity of recombinant plasmid deoxyribonucleic acid (DNA), pBud-H5-green fluorescent protein (GFP)-interferon-regulatory factor (IRF)3 following delivery using polyamidoamine (PAMAM) dendrimer and transactivator of transcription (TAT)-conjugated PAMAM dendrimer as well as the effect of IRF3 as the genetic adjuvant. BALB/c mice were vaccinated transdermally with pBud-H5-GFP, PAMAM/pBud-H5-GFP, TAT-PAMAM/pBud-H5-GFP, and TAT-PAMAM/pBud-H5-GFP-IRF3. The expression analysis of H5 gene from the blood by using quantitative real-time reverse transcriptase polymerase chain reaction confirmed the ability of PAMAM dendrimer as a carrier for gene delivery, as well as the ability of TAT peptide to enhance the delivery efficiency of PAMAM dendrimer. Mice immunized with modified PAMAM by TAT peptide showed higher hemagglutination inhibition titer, and larger CD3+/CD4+ T cells and CD3+/CD8+ T cells population, as well as the production of cytokines, namely, interferon (IFN)-γ, interleukin (IL)-2, IL-15, IL-12, IL-6, and tumor necrosis factor-α compared with those immunized with native PAMAM. These results suggest that the function of TAT peptide as a cell-penetrating peptide is able to enhance the gene delivery, which results in rapid distribution of H5 in the tissues of the immunized mice. Furthermore, pBud-H5-GFP co-expressing IRF3 as a genetic adjuvant demonstrated the highest hemagglutination inhibition titer besides larger CD3+/CD4+ and CD3+/CD8+ T cells population, and strong Th1-like cytokine responses among all the systems tested. In conclusion, TAT-PAMAM dendrimer-based delivery system with IRF3 as a genetic adjuvant is an attractive transdermal DNA vaccine delivery system utilized to evaluate the efficacy of the developed DNA vaccine in inducing protection during challenge with virulent H5N1 virus.
  9. Aziz H, Ping CY, Alias H, Ab Mutalib NS, Jamal R
    Front Pharmacol, 2017;8:897.
    PMID: 29270125 DOI: 10.3389/fphar.2017.00897
    It is believed that there are key differences in the genomic profile between adult and childhood acute myeloid leukemia (AML). Relapse is the significant contributor of mortality in patients with AML and remains as the leading cause of cancer death among children, posing great challenges in the treatment of AML. The knowledge about the genomic lesions in childhood AML is still premature as most genomic events defined in children were derived from adult cohorts. However, the emerging technologies of next generation sequencing have narrowed the gap of knowledge in the biology of AML by the detection of gene mutations for each sub-type which have led to the improvement in terms of prognostication as well as the use of targeted therapies. In this review, we describe the recent understanding of the genomic landscape including the prevalence of mutation, prognostic impact, and targeted therapies that will provide an insight into the pathogenesis of AML relapse in both adult and childhood cases.
    MeSH terms: Adult; Child; Humans; Mutation; Prognosis; Recurrence; Leukemia, Myeloid, Acute; Prevalence; Genomics; High-Throughput Nucleotide Sequencing
  10. Ulum MF, Frastantie D, Purwantara B
    J Anim Sci Technol, 2017;59:26.
    PMID: 29270304 DOI: 10.1186/s40781-017-0152-6
    Background: The change in size and weight of the female reproductive organs during gestation and birth might be affect the perineal muscles and this condition in dairy cow not been reported. This study aimed to assess the ultrasonographic image of coccygeus muscle in 11 inseminated dairy cows with different gestational ages and postpartum.

    Methods: Gestational age was calculated based on the record of artificial insemination and confirmed by using transrectal brightness mode ultrasonography. Perineal hair between the sacrum and ischium bones was shaved along 3-5 cm before being ultrasound. The images of perineal area were obtained by transcutaneous ultrasound using a 5.0 MHz transducer. The thickness and intensity of the coccygeus muscle were measured and analyzed by gestational status and postpartum to show the differences.

    Results: The results showed that the thickness of coccygeus muscle increased with the increase in gestational age. Muscle intensity only increased at young gestational age. However, it decreased with the increase in gestational age (P 

  11. Sin WC, Lim CL
    Stem Cell Investig, 2017;4:96.
    PMID: 29270422 DOI: 10.21037/sci.2017.11.03
    Breast cancer is marked as one of the leading causes of malignancy-related morbidities worldwide. In spite of aggressive interventions, the inevitability of relapse and metastasis severely impede survival rates. Mounting evidence highlight the insidious role of cancer stem cells (CSCs), a small but significant subpopulation of undifferentiated cells that drive tumour progression, spread and resistance to conventional therapy. The nature and significance of breast CSCs remains poorly understood, and even disputed by many researchers. This review discusses the origins, biomarkers, signalling pathways, regulatory mechanisms, and targeted therapy of breast CSCs.
  12. Alerhand S, Nevel A, Nelson B, Halperin M, Serrano F, Prosen G, et al.
    Crit Ultrasound J, 2017 Dec 21;9(Suppl 1):26.
    PMID: 29270697 DOI: 10.1186/s13089-017-0082-z
  13. Kuan, C.H., Rukayadi, Y., Ahmad, S. H., Wan Mohamed Radzi, C.W.J., Kuan, C.S., Yeo, S.K., et al.
    MyJurnal
    Listeriosis and salmonellosis are the major foodborne illnesses worldwide. Over the last decade,
    increasing reports about the antibiotic resistance of Listeria monocytogenes and Salmonella from diverse sources have prompted public health concerns, especially in developing countries with over reliance or misuse of antibiotic drugs in the treatment of humans and animals. In this study, antibiotic susceptibility profiles of 58 L. monocytogenes and 12 Salmonella Enteritidis strains from vegetable farms and retail markets in Malaysia were testedby the standard disk diffusion method. Listeria monocytogenes isolates were found to exhibit 100% resistance to penicillin G. Also, high resistance patterns were observed for meropenem (70.7%) and rifampicin (41.4%). The multiple antibiotic resistance (MAR) index of L. monocytogenes isolates ranged from 0.11 to 0.56. Besides, the antibiogram results revealed that multidrugresistant (MDR) S. Enteritidis were detected and all the S. Enteritidis isolates demonstrated resistance to at least four antibiotics. Ampicillin, amoxicillin, and trimethoprim failed to inhibit all the S. Enteritidis strains. Salmonella Enteritidis isolates also displayed high resistance to nalidixic acid (75.0%), trimethoprim-sulfamethoxazole (75.0%), and chloramphenicol (66.7%). Findings in this study indicated that vegetables could be potential sources of multidrug resistance of L. monocytogenes and S. Enteritidis, which can be a serious issue and a major concern for public health. Thus, there is a great need for surveillance programs in Malaysia to continuously monitor the antibiotic resistance profiles of important pathogens.
    MeSH terms: Amoxicillin; Ampicillin; Animals; Anti-Bacterial Agents; Chloramphenicol; Developing Countries; Drug Resistance, Microbial; Foodborne Diseases; Humans; Listeriosis; Listeria monocytogenes; Malaysia; Microbial Sensitivity Tests; Nalidixic Acid; Penicillin G; Public Health; Rifampin; Salmonella enteritidis; Salmonella Infections; Thienamycins; Vegetables; Trimethoprim, Sulfamethoxazole Drug Combination; Drug Resistance, Multiple; Farms
  14. Thung, T. Y., Chin, Y. Z., Najwa, M. S., Ubong, A., New, C. Y., Ramzi, O. S. B., et al.
    MyJurnal
    Salmonellosis is an important public health problem and causes large economic losses in the poultry industry. The emergence of molecular technology has opened various possibilities for constructing tailor-made proteins, particularly protein E from bacteriophage PhiX174 for the
    production of bacterial ghosts (BGs) applied in vaccines purposes. In the present study, the plamdaPRcI-Elysis plasmid carrying the PhiX174 lysis gene E and thermo-sensitive lamda PR-cl857 regulatory system was constructed. Two Salmonella Enteritidis (SE-2 and SE- 4) and one Salmonella Typhimurium (ST-4) isolates were able to uptake the lysis plasmid via electrotransformation. Generation of ghosts was enhanced by increasing the incubation temperature up to 42˚C. Cell viability of SE-2, SE-4 and ST-4 decreased ranging in log 2.7 to log 4.1 cycles after lysis induction. Moreover, SE-2 and SE-4 exhibited the earliest reduction of CFU after 3 h of incubation. Our results may provide a promising avenue for the development of Salmonella BGs vaccines.
    MeSH terms: Animals; Bacterial Vaccines; Cell Survival; Bacteriophage phi X 174; Plasmids; Poultry; Public Health; Salmonella enteritidis; Salmonella Food Poisoning; Salmonella Infections; Salmonella typhimurium; Temperature; Salmonella Vaccines
  15. Radhakrishnan, N., Lam, K. W., Norhaizan, M. E.
    MyJurnal
    Carica papaya (papaya) fruits are available throughout the world and it is well accepted as food or as a quasi-drug. Aqueous papaya leaves extract have been used as treatment for dengue fever. This prompted us to carry out the docking study on these nine selected ligands (phyto-constituents of papaya) which are carpaine, dehydrocarpaine I and II, cardenolide, p-coumaric acid, chlorogenic acid, caricaxanthin, violaxanthin and zeaxanthin. These phytoconstituents were evaluated on the docking behaviour of dengue serotype 3 RNA-dependent RNA polymerase (RdRp); influenza A (H1N9) virus neuraminidase (NA); chikungunya virus glycoprotein (E3-E2-E1) and chikungunya virus non-structural protein2 (nsP2) protease using Discovery Studio Version 3.1. In addition, molecular physicochemical, drug-likeness, ADMET (Absorption, Distribution, Metabolism, Excretion and Toxicity) and TOPKAT (Toxicity Prediction by Komputer Assisted Technology) analyses were done. The molecular physicochemical analysis revealed that cardenolide and p-coumaric acid (2 ligands) complied with Lipinski’s rule of five. Dehydrocarpaine II, cardenolide, caricaxanthin, violaxanthin and zeaxanthin all the five ligands were predicted to have plasma protein binding (PPB) effect. Docking studies and binding free energy calculations revealed that p-coumaric acid exhibited very least binding energy irrespective of its target protein. Hence, the results of this present study exhibited the potential of these nine ligands as antiviral agent.
    MeSH terms: Alkaloids; Antiviral Agents; Blood Proteins; Cardenolides; Chikungunya virus; Chlorogenic Acid; Dengue; Fruit; Humans; Influenza, Human; Ligands; Neuraminidase; Peptide Hydrolases; RNA Replicase; Xanthophylls; Carica; Zeaxanthins; Serogroup
  16. Chong, S. Y., Rao, P. V., Soon, J. M.
    MyJurnal
    Street-vended beverages are commonly prepared by mechanical extraction of the pulp, usually
    unpasteurised and requires multiple handling steps. Foodborne pathogens transmitted via skin of
    street vendors or via faecal-oral route may contaminate the preparation surfaces and beverages.
    The aim of this study is to identify Escherichia spp. strains of street-vended beverages and their
    associated preparation surfaces using 16s rRNA analysis. The hygienic practice of vendors was represented by Staphylococcus spp. analysis and Staphylococcus aureus is not detected in beverages and associated preparation surfaces. A total of 80 samples (18 beverages, 15 swab
    samples and 47 direct film samples) were collected followed by enumeration of microbial load.
    Polymerase Chain Reaction (PCR) amplification and 16S ribosomal ribonucleic acid (rRNA)
    sequencing were carried out. Results of 16S rRNA sequence analysis indicated that three gram-negative isolates were identified as Escherichia coli RM9387 (Accession no. CP009104.1),
    Escherichia coli c164 (Accession no. JQ781646.1) and Escherichia fergusonii E10 (Accession no. KJ626264.1) with similarity value of 99% respectively.
    MeSH terms: Beverages; Escherichia coli; Feces; RNA, Ribosomal, 16S; Staphylococcal Infections; Staphylococcus; Staphylococcus aureus; Polymerase Chain Reaction; Sequence Analysis
  17. Amin, Z.M., Koh, S.P., Tan, C.P., Yeap, S.K., Hamid, N.S.A., Long, K.
    MyJurnal
    To study the wound healing efficacy of breadfruit starch hydrolysate, an in vitro wound scratch assay was conducted, in which the migration rate of wounded NIH 3T3 fibroblasts was determined. Wounds treated with lower dextrose equivalent (DE), (DE 10-14) starch hydrolysate were found capable to improve the wound healing of NIH 3T3 fibroblast cell with the percentage of wound closure improvement of 77%, respectively when compared with higher DE range (DE 15-19 and DE 20-24). The findings obtained in the BrdU uptake and MTT viability assays confirmed the wound healing properties of breadfruit starch hydrolysate as the starch hydrolysate-treated wounded NIH 3T3 fibroblasts were able to proliferate well and no cytotoxicity was observed. Together, these findings indicated that the newly developed breadfruit starch hydrolysate performed better than commercial (COM) starch hydrolysate of the same DE ranges. In conclusion, breadfruit starch hydrolysate had better functional properties than did starch hydrolysates derived from other sources and that they could play a beneficial role in wound healing applications.
    MeSH terms: Animals; Bromodeoxyuridine; Fibroblasts; Glucose; Musculoskeletal Diseases; Starch; Wound Healing; Artocarpus; NIH 3T3 Cells; Mice
  18. Bakry, N.F., Isa, M.I.N., Sarbon, N.M.
    MyJurnal
    This study investigated consequent functional effects (mechanical and physical) on Gelatin/ CMC/Chitosan composite films from the addition of sorbitol. With glycerol as a plasticizer, solutions for Gelatin/CMC/Chitosan composite films containing graduated sorbitol concentrations (0%, 5%, 10%, 15%, 20%, 25% and 30%), were cast on a petri dish and oven dried at 45˚C. The fabricated films were then characterized for tensile strength, elongation at break (EAB) and puncture resistance (mechanical properties); as well as film thickness, water vapor permeability (WVP), thermal properties, light transmittance and transparency (UV and visible light transmission), biodegradability, and X-ray diffraction (physical properties). Results indicated that by increasing sorbitol concentration, melting point and tensile strength decreased overall (p
    MeSH terms: Biochemical Phenomena; Gelatin; Glycerol; Light; Permeability; Plasticizers; Punctures; Sorbitol; Steam; Tensile Strength; X-Ray Diffraction; Chitosan; Physical Phenomena
  19. Ishak, N.H., Sarbon, N.M.
    MyJurnal
    This study aims to optimize enzymatic hydrolysis process for producing angiotensin I-converting enzyme (ACE) inhibitory peptides from protein hydrolysate of shortfin scad (Decapterus Macrosoma) waste (SWH). The enzymatic hydrolysis conditions, namely the temperature (40, 50, 60°C), time (B: 60, 120, 180 min), pH (C: 7, 8, 9) and enzyme substrate concentrations (D: 1, 2, 3%) on yield, degree of hydrolysis (DH) and ACE-inhibitory activity were analysed. Responses were optimized using the response surface methodology (RSM) by employing four factors, 3-levels and the Central Composite Design (CCD). The optimized conditions were further validated to indicate the validity of the prediction model. The optimal conditions obtained for the hydrolysis conditions were at temperature of 50°C, time of 60 min, pH of 9 and enzyme to substrate concentration of 2.92%. The experimental result for yield was lower than the predicted value, as generated by RSM. However, the degree of hydrolysis of SWH was higher than the predicted value. The ACE inhibitory activity of SWH was 79.34%, and showed lower than the predicted value. Therefore, the optimized conditions of SWH served as good conditions for the production of bioactive peptide with high ACE inhibitory activity.
    MeSH terms: Angiotensin-Converting Enzyme Inhibitors; Animals; Computers; Hydrolysis; Peptidyl-Dipeptidase A; Peptides; Perciformes; Protein Hydrolysates; Temperature
  20. Tan MP, Abdul Razack AH
    Evid Based Nurs, 2017 01;20(1):14.
    PMID: 27974401 DOI: 10.1136/eb-2016-102315
    MeSH terms: Accidental Falls*; Humans; Male; Prostate*; Risk Factors
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