Browse publications by year: 2018

  1. Joseph P, Pais P, Dans AL, Bosch J, Xavier D, Lopez-Jaramillo P, et al.
    Am Heart J, 2018 Dec;206:72-79.
    PMID: 30342297 DOI: 10.1016/j.ahj.2018.07.012
    BACKGROUND: It is hypothesized that in individuals without clinical cardiovascular disease (CVD), but at increased CVD risk, a 50% to 60% reduction in CVD risk could be achieved using fixed dose combination (FDC) therapy (usually comprised of multiple blood-pressure agents and a statin [with or without aspirin]) in a single "polypill". However, the impact of a polypill in preventing clinical CV events has not been evaluated in a large randomized controlled trial.

    METHODS: TIPS-3 is a 2x2x2 factorial randomized controlled trial that will examine the effect of a FDC polypill on major CV outcomes in a primary prevention population. This study aims to determine whether the Polycap (comprised of atenolol, ramipril, hydrochlorothiazide, and a statin) reduces CV events in persons without a history of CVD, but who are at least at intermediate CVD risk. Additional interventions in the factorial design of the study will compare the effect of (1) aspirin versus placebo on CV events (and cancer), (2) vitamin D versus placebo on the risk of fractures, and (3) the combined effect of aspirin and the Polycap on CV events.

    RESULTS: The study has randomized 5713 participants across 9 countries. Mean age of the study population is 63.9 years, and 53% are female. Mean INTERHEART risk score is 16.8, which is consistent with a study population at intermediate CVD risk.

    CONCLUSION: Results of the TIP-3 study will be key to determining the appropriateness of FDC therapy as a strategy in the global prevention of CVD.

    MeSH terms: Angiotensin-Converting Enzyme Inhibitors/administration & dosage; Antihypertensive Agents/therapeutic use; Atenolol/administration & dosage*; Cardiovascular Diseases/epidemiology; Cardiovascular Diseases/prevention & control*; Diuretics/administration & dosage; Double-Blind Method; Drug Combinations; Female; Humans; Hydrochlorothiazide/administration & dosage*; Male; Middle Aged; Primary Prevention/methods*; Retrospective Studies; Global Health; Incidence; Ramipril/administration & dosage*; Hydroxymethylglutaryl-CoA Reductase Inhibitors/administration & dosage; Simvastatin/administration & dosage*; Adrenergic beta-1 Receptor Antagonists/administration & dosage
  2. Kosoltanapiwat N, Reamtong O, Okabayashi T, Ampawong S, Rungruengkitkun A, Thiangtrongjit T, et al.
    BMC Microbiol, 2018 10 17;18(1):135.
    PMID: 30332986 DOI: 10.1186/s12866-018-1302-9
    BACKGROUND: The pteropine orthoreovirus (PRV) was isolated from monkey (Macaca fascicularis) faecal samples collected from human-inhabited areas in Lopburi Province, Thailand. These samples were initially obtained to survey for the presence of hepatitis E virus (HEV).

    RESULTS: Two virus isolates were retrieved by virus culture of 55 monkey faecal samples. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was successfully used to identify the viruses as the segmented dsRNA orthoreovirus. Phylogenetic analysis of the Lopburi orthoreovirus whole-genomes revealed relationships with the well-characterised PRVs Pulau (segment L1), Cangyuan (segments L2, M3 and S3), Melaka (segments L3 and M2), Kampar (segments M1 and S2) and Sikamat (segments S1 and S4) of Southeast Asia and China with nucleotide sequence identities of 93.5-98.9%. RT-PCR showed that PRV was detected in 10.9% (6/55) and HEV was detected in 25.5% (14/55) of the monkey faecal samples.

    CONCLUSIONS: PRV was isolated from monkey faeces for the first time in Thailand via viral culture and LC-MS/MS. The genetic diversity of the virus genome segments suggested a re-assortment within the PRV species group. The overall findings emphasise that monkey faeces can be sources of zoonotic viruses, including PRV and HEV, and suggest the need for active virus surveillance in areas of human and monkey co-habitation to prevent and control emerging zoonotic diseases in the future.

    MeSH terms: Animals; Haplorhini/virology*; Feces/virology*; Phylogeny; Reoviridae Infections/veterinary*; RNA, Viral/genetics; Thailand; Genome, Viral*; Sequence Analysis, DNA; Orthoreovirus/classification*; Orthoreovirus/isolation & purification; Tandem Mass Spectrometry
  3. Wee Leng G, Mustafar R, Kamaruzaman L, Mohd R, Cader RA, Wei Yen K, et al.
    Acta Med Indones, 2018 Jul;50(3):237-243.
    PMID: 30333274
    Managing primary or even secondary glomerulonephritis remains a challenge to many nephrologists. In primary focal segmental glomerulosclerosis (FSGS) with heavy proteinuria, renin aldosterone system blockade and high dose of oral prednisolone is the mainstay of treatment. Other immunosuppressive medications like Cyclophosphamide, Cyclosporine A and Mycophenolate Mofetil (MMF) are warranted if a complete remission is not achieved.  We illustrate a case of 21 year old gentleman with primary FSGS that was difficult to achieve remission despite on high dose steroid and oral Cyclophosphamide. He was also not responsive to a combination of MMF and Cyclosporine A (CSA) and even throughout the therapy he developed significant steroid and CSA toxicity. He presented to our center with severe nephrotic syndrome and acute kidney injury requiring acute haemodialysis. Despite re-challenged him again on high dose prednisolone, total of 2.4g of intravenous Cyclophosphamide, and MMF, he failed to achieve remission. He was subsequently given intravenous Rituximab 500mg/weekly for 4 doses and able to attained remission for 1 year. He relapsed again and a second course of Rituximab 500mg/weekly for 6 doses were given to attain remission. This case demonstrates the difficulty in managing refractory steroid dependent FSGS and we found that Rituximab is proven beneficial in this case to induce remission.
    MeSH terms: Rituximab/administration & dosage*; Glomerulosclerosis, Focal Segmental/drug therapy*; Glomerulosclerosis, Focal Segmental/pathology; Renal Dialysis; Humans; Immunosuppressive Agents/administration & dosage*; Kidney/pathology; Male; Nephrotic Syndrome/complications*; Remission Induction; Treatment Outcome; Young Adult; Acute Kidney Injury/complications; Acute Kidney Injury/therapy*
  4. Ahmad AA, Samsuddin S, Oh SJWY, Martinez-Perez P, Rasedee A
    J Vet Med Sci, 2018 Dec 11;80(12):1867-1874.
    PMID: 30333379 DOI: 10.1292/jvms.17-0585
    The Sunda pangolin (Manis javanica) population in Southeast Asia faces threats such as poaching and deforestation. Health assessments of rescued individuals including physical examination and blood work are crucial for clinicians to determine the health status of these animals. The establishments of reference intervals of hematology and serum biochemistry are important for identifying clinical abnormalities. The objectives of our study were to establish blood reference intervals for Sunda pangolins, to determine if there are age and sex related differences in hematology and serum biochemistry, and to compare our results with those of a previous study on confiscated Sunda pangolins in Thailand. Fifty-eight Sunda pangolins were rescued between January 2011 and December 2015. The hematology and serum biochemistry results of 51 clinically normal Sunda pangolins were selected for the establishment of the blood reference intervals. No sex related differences were noted in this study. Age-related differences were observed, in which adult Sunda pangolins had a significantly higher mean corpuscular volume than juveniles, and juvenile Sunda pangolins had significantly higher red blood cell counts and hemoglobin levels than those of the adults (P<0.05). Age-related differences were also noted in several serum biochemistry parameters: alkaline phosphatase (ALP) was significantly higher in juveniles, and total protein was significantly higher in adult Sunda pangolins. Compared to a previous study the white blood cell counts, neutrophil counts, and ALP were higher, and the lymphocyte counts were lower in the present study.
    MeSH terms: Aging/blood; Animals; Animals, Wild/blood; Xenarthra/blood*; Female; Male; Reference Values; Singapore
  5. Abu Zarim N, Zainul Abidin S, Ariffin F
    J Food Sci Technol, 2018 Nov;55(11):4522-4529.
    PMID: 30333649 DOI: 10.1007/s13197-018-3386-5
    Texture-modified food has become an important strategy in managing dysphagia. Pureed food is proven to be the safest texture due to its high viscosity which can slow down the rate of the food bolus during swallowing. In this study, texture-modified chicken rendang was developed according to Texture C (smooth puree) as described by the Australian standard for texture-modified food. Samples were added with five different thickeners (sago starch, tapioca starch, modified corn starch, xanthan gum and carboxymethyl cellulose gum) at three different concentrations (10, 20 and 30% w/w). Their rheological effects were analyzed through dynamic and steady shear test. Results obtained reveals that samples contained xanthan gum have higher structure rigidity and shear thinning behaviour, while carboxymethyl cellulose gum provides the highest viscosity as well as yield stress than other samples. In terms of concentration, a strong dependence of structural rigidity and viscosity of all prepared samples with amount of thickeners added was observed. Overall, based on its rheological properties, the addition of carboxymethyl cellulose gum at 30% concentration was found to be the most suitable thickener, to be incorporated in the texture-modified chicken rendang. Selecting a suitable food thickener in developing food for individual with dysphagia plays an important role to ensure the right texture and consistency for their safe consumption.
    MeSH terms: Animals; Australia; Carboxymethylcellulose Sodium; Manihot; Chickens; Zea mays; Deglutition; Deglutition Disorders; Gingiva; Polysaccharides, Bacterial; Rheology; Starch; Viscosity; Foods, Specialized
  6. Samsudin NA, Halim NRA, Sarbon NM
    J Food Sci Technol, 2018 Nov;55(11):4608-4614.
    PMID: 30333657 DOI: 10.1007/s13197-018-3399-0
    The aim of this study is to investigate the effect of pH levels on functional properties of various molecular weights of eel (Monopterus sp.) protein hydrolysate (EPH). The eel was enzymatically hydrolyzed and fractionated through membranes filter (10 kDa, 5 kDa and 3 kDa). The foaming capacity and stability, emulsifying capacity and stability index, water holding capacity and fat binding capacity between pH 2 and 10 were determined. The 5 kDa EPH was found to have the highest foaming capacity at pH 2, pH 4 and pH 6, and foaming stability and emulsifying activity index at all pH levels, except pH 8 and fat binding capacity at pH 2, as compared to 10 kDa and 3 kDa EPH fractions. The 10 kDa EPH had the highest emulsifying stability index and water holding capacity at all pH levels. This study shows that the EPH fractions at low pH level had high foaming and oil binding capacity, while at neutral pH, the fractions had high foaming stability and water holding capacity. These properties are important in making whipped cream, mousse and meringue. In contrast, EPH fractions demonstrated strong emulsifying properties at high pH levels and show potential as an emulsifier for breads, biscuits and frozen desserts.
    MeSH terms: Bread; Eels; Emulsions; Hydrogen-Ion Concentration; Molecular Weight; Protein Hydrolysates; Water; Emulsifying Agents
  7. Advokaat EL, Marshall NT, Li S, Spakman W, Krijgsman W, van Hinsbergen DJJ
    Tectonics, 2018 Aug;37(8):2486-2512.
    PMID: 30333679 DOI: 10.1029/2018TC005010
    SE Asia comprises a heterogeneous assemblage of fragments derived from Cathaysia (Eurasia) in the north and Gondwana in the south, separated by suture zones representing closed former ocean basins. The western part of the region comprises Sundaland, which was formed by Late Permian-Triassic amalgamation of continental and arc fragments now found in Indochina, the Thai Penisula, Peninsular Malaysia, and Sumatra. On Borneo, the Kuching Zone formed the eastern margin of Sundaland since the Triassic. To the SE of the Kuching Zone, the Gondwana-derived continental fragments of SW Borneo and East Kalimantan accreted in the Cretaceous. South China-derived fragments accreted to north of the Kuching Zone in the Miocene. Deciphering this complex geodynamic history of SE Asia requires restoration of its deformation history, but quantitative constraints are often sparse. Paleomagnetism may provide such constraints. Previous paleomagnetic studies demonstrated that Sundaland and fragments in Borneo underwent vertical axis rotations since the Cretaceous. We provide new paleomagnetic data from Eocene-Miocene sedimentary rocks in the Kutai Basin, east Borneo, and critically reevaluate the published database, omitting sites that do not pass widely used, up-to-date reliability criteria. We use the resulting database to develop an updated kinematic restoration. We test the regional or local nature of paleomagnetic rotations against fits between the restored orientation of the Sunda Trench and seismic tomography images of the associated slabs. Paleomagnetic data and mantle tomography of the Sunda slab indicate that Sundaland did not experience significant vertical axis rotations since the Late Jurassic. Paleomagnetic data show that Borneo underwent a ~35° counterclockwise rotation constrained to the Late Eocene and an additional ~10° counterclockwise rotation since the Early Miocene. How this rotation was accommodated relative to Sundaland is enigmatic but likely involved distributed extension in the West Java Sea between Borneo and Sumatra. This Late Eocene-Early Oligocene rotation is contemporaneous with and may have been driven by a marked change in motion of Australia relative to Eurasia, from eastward to northward, which also has led to the initiation of subduction along the eastern Sunda trench and the proto-South China Sea to the south and north of Borneo, respectively.
  8. Ghazali WSW, Daud SMM, Mohammad N, Wong KK
    Medicine (Baltimore), 2018 Oct;97(42):e12787.
    PMID: 30334968 DOI: 10.1097/MD.0000000000012787
    The aims of this study were to determine damage index in systemic lupus erythematosus (SLE) patients based on Systemic Lupus International Collaborating Clinics/American College of Rheumatology (SLICC/ACR) Damage Index (SDI) and to determine the laboratory and clinico-demographic factors affecting SDI.This is a retrospective cohort study of 94 SLE patients attending rheumatology clinics in 2 local hospitals in Kelantan, Malaysia. The patients were divided into 2 groups based on SDI score assigned by the attending physician, 0 (without damage) or ≥1 (with damage). Newly diagnosed SLE patients with disease duration less than 6 months were excluded.A total of 45 (47.9%) SLE patients showed damage by SDI score. Majority of the subjects had neuropsychiatric damages (21/94; 22.3%) followed by skin (12/94; 12.8%) and musculoskeletal (6/94; 6.4%) damage. SDI score was significantly associated with higher disease duration (6.2 ± 6.57 years vs 4.5 ± 3.7 years; P = .018), lower prednisolone dose (8.74 ± 10.89 mg vs 4.89 ± 3.81 mg; P 
    MeSH terms: Adult; Cyclophosphamide/administration & dosage; Female; Glucocorticoids/administration & dosage; Humans; Hypertension/etiology; Hypertension/epidemiology; Lupus Erythematosus, Systemic/complications; Lupus Erythematosus, Systemic/drug therapy; Lupus Erythematosus, Systemic/pathology*; Male; Prednisolone/administration & dosage; Retrospective Studies; Severity of Illness Index*; Time Factors; Antirheumatic Agents/administration & dosage
  9. Matsumoto T, Kitagawa T, Teo S, Anai Y, Ikeda R, Imahori D, et al.
    J Nat Prod, 2018 10 26;81(10):2187-2194.
    PMID: 30335380 DOI: 10.1021/acs.jnatprod.8b00341
    A methanol extract of the dried leaves of Lansium domesticum showed antimutagenic effects against 3-amino-1,4-dimethyl-5 H-pyrido[4,3- b]indole (Trp-P-1) and 2-amino-1-methyl-6-phenylimidazo[4,5- bI]pyridine (PhIP) using the Ames assay. Nine new onoceranoid-type triterpenoids, lansium acids I-IX (1-9), and nine known compounds (10-16) were isolated from the extract. The structures of the new compounds were elucidated on the basis of chemical and spectroscopic evidence. The absolute stereostructures of the new compounds were determined via their electronic circular dichroism spectra. Several isolated onoceranoid-type triterpeneoids showed antimutagenic effects in an in vitro Ames assay. Moreover, oral intake of a major constituent, lansionic acid (10), showed antimutagenic effects against PhIP in an in vivo micronucleus test.
    MeSH terms: Animals; Circular Dichroism; Humans; Mutagenicity Tests; Plant Extracts/pharmacology*; Plant Extracts/chemistry; Stereoisomerism; Triterpenes/pharmacology*; Triterpenes/chemistry; Micronucleus Tests; Molecular Structure; Antimutagenic Agents/pharmacology*; Plant Leaves/chemistry*; Meliaceae/chemistry*; Mice
  10. Kumarn S, Churinthorn N, Nimpaiboon A, Sriring M, Ho CC, Takahara A, et al.
    Langmuir, 2018 10 30;34(43):12730-12738.
    PMID: 30335388 DOI: 10.1021/acs.langmuir.8b02321
    The stabilization mechanism of natural rubber (NR) latex from Hevea brasiliensis was studied to investigate the components involved in base-catalyzed ester hydrolysis, namely, hydrolyzable lipids, ammonia, and the products responsible for the desired phenomenon observed in ammonia-preserved NR latex. Latex stability is generally thought to come from a rubber particle (RP) dispersion in the serum, which is encouraged by negatively charged species distributed on the RP surface. The mechanical stability time (MST) and zeta potential were measured to monitor field latices preserved in high (FNR-HA) and low ammonia (FNR-LA) contents as well as that with the ester-containing components removed (saponified NR) at different storage times. Amounts of carboxylates of free fatty acids (FFAs), which were released by the transformation and also hypothesized to be responsible for the like-charge repulsion of RPs, were measured as the higher fatty acid (HFA) number and corroborated by confocal laser scanning microscopy (CLSM) both qualitatively and quantitatively. The lipids and their FFA products interact differently with Nile red, which is a lipid-selective and polarity-sensitive fluorophore, and consequently re-emit characteristically. The results were confirmed by conventional ester content determination utilizing different solvent extraction systems to reveal that the lipids hydrolyzed to provide negatively charged fatty acid species were mainly the polar lipids (glycolipids and phospholipids) at the RP membrane but not those directly linked to the rubber molecule and, to a certain extent, those suspended in the serum. From new findings disclosed herein together with those already reported, a new model for the Hevea rubber particle in the latex form is proposed.
    MeSH terms: Ammonia; Esters; Fatty Acids; Fatty Acids, Nonesterified; Glycolipids; Hydrolysis; Latex; Oxazines; Phospholipids; Rubber; Solvents; Microscopy, Confocal; Hevea
  11. Zengin G, Rodrigues MJ, Abdallah HH, Custodio L, Stefanucci A, Aumeeruddy MZ, et al.
    Comput Biol Chem, 2018 Dec;77:178-186.
    PMID: 30336375 DOI: 10.1016/j.compbiolchem.2018.10.005
    The genus Silene is renowned in Turkey for its traditional use as food and medicine. Currently, there are 138 species of Silene in Turkey, amongst which have been several studies for possible pharmacological potential and application in food industry. However, there is currently a paucity of data on Silene salsuginea Hub.-Mor. This study endeavours to access its antioxidant, enzyme inhibitory, and anti-inflammatory properties. Besides, reversed-phase high-performance liquid chromatography-diode array detector (RP-HPLC-DAD) was used to detect phenolic compounds, and molecular docking was performed to provide new insights for tested enzymes and phenolics. High amounts of apigenin (534 μg/g extract), ferulic acid (452 μg/g extract), p-coumaric acid (408 μg/g extract), and quercetin (336 μg/g extract) were detected in the methanol extract while rutin (506 μg/g extract) was most abundant in the aqueous extract. As for their biological properties, the methanol extract exhibited the best antioxidant effect in the DPPH and CUPRAC assays, and also the highest inhibition against tyrosinase. The aqueous extract was the least active enzyme inhibitor but showed the highest antioxidant efficacy in the ABTS, FRAP, and metal chelating assays. At a concentration of 15.6 μg/mL, the methanol extract resulted in a moderate decrease (25.1%) of NO production in lipopolysaccharide-stimulated cells. Among the phenolic compounds, epicatechin, (+)-catechin, and kaempferol showed the highest binding affinity towards the studied enzymes in silico. It can be concluded that extracts of S. salsuginea are a potential source of functional food ingredients but need further analytical experiments to explore its complexity of chemical compounds and pharmacological properties as well as using in vivo toxicity models to establish its maximum tolerated dose.
    MeSH terms: RAW 264.7 Cells; alpha-Amylases/antagonists & inhibitors; alpha-Amylases/metabolism; alpha-Glucosidases/metabolism; Animals; Anti-Inflammatory Agents, Non-Steroidal/isolation & purification; Anti-Inflammatory Agents, Non-Steroidal/pharmacology*; Anti-Inflammatory Agents, Non-Steroidal/chemistry; Antioxidants/isolation & purification; Antioxidants/pharmacology*; Antioxidants/chemistry; Biphenyl Compounds/antagonists & inhibitors; Cell Survival/drug effects; Cells, Cultured; Cholinesterases/metabolism; Computer Simulation; Dose-Response Relationship, Drug; Enzyme Inhibitors/isolation & purification; Enzyme Inhibitors/pharmacology*; Enzyme Inhibitors/chemistry; Lipopolysaccharides/antagonists & inhibitors; Lipopolysaccharides/pharmacology; Macrophages/drug effects; Macrophages/metabolism; Nitric Oxide/analysis; Nitric Oxide/antagonists & inhibitors; Nitric Oxide/biosynthesis; Phenols/analysis; Phenols/isolation & purification; Phenols/pharmacology*; Picrates/antagonists & inhibitors; Structure-Activity Relationship; Sulfonic Acids/antagonists & inhibitors; Turkey; Monophenol Monooxygenase/antagonists & inhibitors; Monophenol Monooxygenase/metabolism; Silene/chemistry*; Mice; Benzothiazoles/antagonists & inhibitors; Molecular Docking Simulation
  12. Hagiwara Y, Koh JEW, Tan JH, Bhandary SV, Laude A, Ciaccio EJ, et al.
    Comput Methods Programs Biomed, 2018 Oct;165:1-12.
    PMID: 30337064 DOI: 10.1016/j.cmpb.2018.07.012
    BACKGROUND AND OBJECTIVES: Glaucoma is an eye condition which leads to permanent blindness when the disease progresses to an advanced stage. It occurs due to inappropriate intraocular pressure within the eye, resulting in damage to the optic nerve. Glaucoma does not exhibit any symptoms in its nascent stage and thus, it is important to diagnose early to prevent blindness. Fundus photography is widely used by ophthalmologists to assist in diagnosis of glaucoma and is cost-effective.

    METHODS: The morphological features of the disc that is characteristic of glaucoma are clearly seen in the fundus images. However, manual inspection of the acquired fundus images may be prone to inter-observer variation. Therefore, a computer-aided detection (CAD) system is proposed to make an accurate, reliable and fast diagnosis of glaucoma based on the optic nerve features of fundus imaging. In this paper, we reviewed existing techniques to automatically diagnose glaucoma.

    RESULTS: The use of CAD is very effective in the diagnosis of glaucoma and can assist the clinicians to alleviate their workload significantly. We have also discussed the advantages of employing state-of-art techniques, including deep learning (DL), when developing the automated system. The DL methods are effective in glaucoma diagnosis.

    CONCLUSIONS: Novel DL algorithms with big data availability are required to develop a reliable CAD system. Such techniques can be employed to diagnose other eye diseases accurately.

    MeSH terms: Algorithms; Diagnosis, Computer-Assisted/methods*; Diagnostic Techniques, Ophthalmological; Fundus Oculi; Glaucoma/pathology; Humans; Image Interpretation, Computer-Assisted/methods; Ophthalmoscopy/methods; Photography; Risk Factors; Neural Networks (Computer); Microscopy, Confocal/methods
  13. Bui DT, Panahi M, Shahabi H, Singh VP, Shirzadi A, Chapi K, et al.
    Sci Rep, 2018 Oct 18;8(1):15364.
    PMID: 30337603 DOI: 10.1038/s41598-018-33755-7
    Adaptive neuro-fuzzy inference system (ANFIS) includes two novel GIS-based ensemble artificial intelligence approaches called imperialistic competitive algorithm (ICA) and firefly algorithm (FA). This combination could result in ANFIS-ICA and ANFIS-FA models, which were applied to flood spatial modelling and its mapping in the Haraz watershed in Northern Province of Mazandaran, Iran. Ten influential factors including slope angle, elevation, stream power index (SPI), curvature, topographic wetness index (TWI), lithology, rainfall, land use, stream density, and the distance to river were selected for flood modelling. The validity of the models was assessed using statistical error-indices (RMSE and MSE), statistical tests (Friedman and Wilcoxon signed-rank tests), and the area under the curve (AUC) of success. The prediction accuracy of the models was compared to some new state-of-the-art sophisticated machine learning techniques that had previously been successfully tested in the study area. The results confirmed the goodness of fit and appropriate prediction accuracy of the two ensemble models. However, the ANFIS-ICA model (AUC = 0.947) had a better performance in comparison to the Bagging-LMT (AUC = 0.940), BLR (AUC = 0.936), LMT (AUC = 0.934), ANFIS-FA (AUC = 0.917), LR (AUC = 0.885) and RF (AUC = 0.806) models. Therefore, the ANFIS-ICA model can be introduced as a promising method for the sustainable management of flood-prone areas.
  14. Lee MK, Hosseini Fouladi M, Narayana Namasivayam S
    Sci Rep, 2018 Oct 18;8(1):15355.
    PMID: 30337652 DOI: 10.1038/s41598-018-33645-y
    An irregular-shaped plate with dimensions identical to a guitar soundboard is chosen for this study. It is well known that the classical guitar soundboard is a major contributor to acoustic radiation at high frequencies when compared to the bridge and sound hole. This paper focuses on using an analytical model to compute the sound power of an unbraced irregular-shaped plate of variable thickness up to frequencies of 5 kHz. The analytical model is an equivalent thin rectangular plate of variable thickness. Sound power of an irregular-shaped plate of variable thickness and with dimensions of an unbraced Torres' soundboard is determined from computer analysis using ANSYS. The number of acoustic elements used in ANSYS for accurate simulation is six elements per wavelength. Here we show that the analytical model can be used to compute sound power of an unbraced irregular-shaped plate of variable thickness.
    MeSH terms: Acoustics; Auditory Pathways; Sound
  15. Hanafy NA, Badr MS, Nasr GM
    Open Access Maced J Med Sci, 2018 Sep 25;6(9):1577-1580.
    PMID: 30337968 DOI: 10.3889/oamjms.2018.400
    BACKGROUND: Toxoplasma gondii is a common parasitic infection of humans. Infection is usually mild. Serious complications can occur in pregnant and immunocompromised patients.

    AIM: The present study aims to investigate the performance of 2 different PCR protocols; real-time quantitative molecular assays (qPCR) and conventional molecular assays (cPCR), using 2 different sets of primers and by using cloned purified Toxoplasma genomic substances to be evaluated as reference samples.

    METHODS: The target DNA was provided in 8 different quantities.

    RESULTS: Amplification failure was reported only with the cPCR in samples of low concentrations using both primer sets. Quantitative PCR detected the 8 different dilutions of the purified Toxoplasma gondii using the 2 sets of primers while cPCR was sensitive to detect only 6 different dilutions.

    CONCLUSION: Generally real-time quantitative molecular assays, is easy to use method compared to conventional PCR assay and produces more reliable results within only one hour time but still the possible application of qPCRs in routine diagnosis necessitates analysis of a large number of clinical samples in further studies to make the proper choice.

    MeSH terms: DNA; Female; Humans; Pregnancy; Toxoplasma; Toxoplasmosis; Immunocompromised Host; Genomics; Real-Time Polymerase Chain Reaction
  16. Govender N, Senan S, Mohamed-Hussein ZA, Isa MNM, Yaakob Z, Ratnam W
    Data Brief, 2018 Dec;21:71-74.
    PMID: 30338276 DOI: 10.1016/j.dib.2018.09.081
    Jatropha curcas L. or the physic nut is a monoecious shrub belonging to the Euphorbiaceae family. The plant is an ideal feedstock for biodiesel production; oil-rich seed (37-42%), has a broad range of growth habitat such as arid, semi-arid and tropical and a relatively feasible process for conversion of crude oil into biodiesel. The major constraint affecting the success of large-scale J. curcas plantation is seed yield inconsistency. Numerous research projects conducted on J. curcas with integrated genetic, genomic and transcriptomic approaches have been applied on the leaf, apical meristem, flower, root and fruit tissues. However, to date, no genomics data of J. curcas shoot system are publicly available, despite its importance in understanding flowering, fruiting and seed set qualities targeted for yield improvement. Here, we present eighteen sets of shoot and inflorescence transcriptomes generated from J. curcas plants with contrasting yields. Raw reads of the RNA-seq data are found in NCBI׳s Sequence Read Archive (SRA) database with the accession number SRP090662 (https://www.ncbi.nlm.nih.gov/sra/?term=SRP090662). This transcriptomic data could be integrated with the present genomic resources for in depth understanding of J. curcas reproductive system.
    MeSH terms: Fruit; Genitalia; Petroleum; Seeds; Ecosystem; Meristem; Euphorbiaceae; Genomics; Databases, Nucleic Acid; Jatropha; Flowers; Inflorescence; Biofuels; Transcriptome
  17. Lim BH, Majlan EH, Daud WRW, Rosli MI, Husaini T
    Heliyon, 2018 Oct;4(10):e00845.
    PMID: 30338304 DOI: 10.1016/j.heliyon.2018.e00845
    The flow distribution of a proton exchange membrane fuel cell within a manifold plays an important role on its performance. This study presents a numerical analysis of the flow distribution behavior within different manifold configurations. A two-dimensional model with 75 cells was employed to study the flow behavior. The variation in the stoichiometry and number of cells was also studied. Three different flow configurations were considered with different numbers of flow inlets and outlets. The flow characteristics, such as the pressure and velocity variations in the manifold and cells, were measured to determine the effects of the different flow configurations. The results indicated that the double inlet/outlet configuration had the best flow distribution when using 75 cells. Moreover, increasing the stoichiometry resulted in a better flow distribution to the cells in a stack.
    MeSH terms: Cell Count; Cell Membrane; Pressure; Protons; Physical Phenomena; Bays
  18. Samangouei P, Crespo-Avilan GE, Cabrera-Fuentes H, Hernández-Reséndiz S, Ismail NI, Katwadi KB, et al.
    Cond Med, 2018 Aug;1(5):239-246.
    PMID: 30338314
    Acute myocardial infarction (AMI) and the heart failure (HF) that often follows are among the leading causes of death and disability worldwide. As such novel therapies are needed to reduce myocardial infarct (MI) size, and preserve left ventricular (LV) systolic function in order to reduce the propensity for HF following AMI. Mitochondria are dynamic organelles that can undergo morphological changes by two opposing processes, mitochondrial fusion and fission. Changes in mitochondrial morphology and turnover are a vital part of maintaining mitochondrial health, DNA stability, energy production, calcium homeostasis, cellular division, and differentiation, and disturbances in the balance of fusion and fission can predispose to mitochondrial dysfunction and cell death. Changes in mitochondrial morphology are governed by mitochondrial fusion proteins (Mfn1, Mfn2 and OPA1) and mitochondrial fission proteins (Drp1, hFis1, and Mff). Recent experimental data suggest that mitochondria undergo fission during acute ischemia/reperfusion injury (IRI), generating fragmented dysfunctional mitochondrial and predisposing to cell death. We and others have shown that genetic and pharmacological inhibition of the mitochondrial fission protein Drp1 can protect cardiomyocytes from acute IRI and reduce MI size. Novel components of the mitochondrial fission machinery, mitochondrial dynamics proteins of 49 kDa (MiD49) and mitochondrial dynamics proteins of 51 kDa (MiD51), have been recently described, which have been shown to mediating mitochondrial fission by targeting Drp1 to the mitochondrial surface. In this review article, we provide an overview of MiD49 and MiD51, and highlight their potential as novel therapeutic targets for treating cardiovascular diseases such as AMI, anthracycline cardiomyopathy, and pulmonary arterial hypertension.
    MeSH terms: Calcium; Cause of Death; Cell Differentiation; DNA; Heart Failure; Homeostasis; Hypertension, Pulmonary; Mitochondria; Cardiomyopathies; Myocardial Infarction; Systole; Reperfusion Injury; Cell Death; Anthracyclines; Mitochondrial Proteins; Myocytes, Cardiac; Mitochondrial Dynamics
  19. Achin NA, Kit TJ, Ngah WZW, Makpol S, Mazlan M, Hamezah HS, et al.
    Curr Aging Sci, 2018;11(3):182-194.
    PMID: 30338748 DOI: 10.2174/1874609811666181019141217
    BACKGROUND: Cognitive frailty emerges as one of the threats to healthy aging. It is in continuum with advancing of age with uncertain indicator between pathological and physiological changes. Alterations in pathways associated with the aging process have been observed including oxidative stress, lipid metabolism, and inflammation. However, the exact mechanisms leading to cognitive decline are still unclear.

    OBJECTIVE: This study was sought to assess the level of cognitive functions and linked with blood oxidative status during normal aging in rats.

    METHODS: A longitudinal study using male Sprague Dawley rats was performed starting from the age of 14 months old to 27 months old. Cognitive functions tests such as open field, Morris water maze and object recognition were determined at the age of 14, 18, 23, and 27 months old and were compared with group 3 months old. Blood was collected from the orbital venous sinus and oxidative status was determined by measuring the level of DNA damage, lipid peroxidation, protein oxidation and antioxidant enzymes activity.

    RESULTS: Aged rats showed declining exploratory behavior and increased in the level of anxiety as compared to the young rats. The level of DNA damage increased with increasing age. Interestingly, our study found that both levels of malondialdehyde and plasma carbonyl content decreased with age. In addition, the level of superoxide dismutase activity was significantly decreased with age whereas catalase activity was significantly increased from 18 months of age. However, no significant difference was found in glutathione peroxidase activity among all age groups.

    CONCLUSION: The progressions of cognitive impairment in normal aging rats are linked to the increment in the level of DNA damage.

    MeSH terms: Age Factors; Aging/blood*; Aging/psychology*; Animals; Anxiety/blood; Anxiety/psychology; Behavior, Animal*; Catalase/blood; Cognition*; DNA Damage; Exploratory Behavior; Male; Malondialdehyde/blood; Motor Activity; Superoxide Dismutase/blood; Lipid Peroxidation; Biomarkers/blood; Rats, Sprague-Dawley; Oxidative Stress*; Maze Learning; Recognition (Psychology); Protein Carbonylation
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