Browse publications by year: 2017

  1. Puttarak P, Dilokthornsakul P, Saokaew S, Dhippayom T, Kongkaew C, Sruamsiri R, et al.
    Sci Rep, 2017 09 06;7(1):10646.
    PMID: 28878245 DOI: 10.1038/s41598-017-09823-9
    Centella asiatica (L.) Urb. has been used as an herbal brain tonic for mental disorders and enhancing memory, but no review of the overall evidence of C. asiatica and cognitive function has been conducted. This study aims to determine the effects of C. asiatica on cognitive function and its related properties. The current systematic review includes five randomized controlled trials (RCTs) conducted to determine the effect of C. asiatica alone and six RCTs conducted to determine the effect of C. asiatica-containing products. Meta-analysis indicated that there are no significant differences in all cognitive function domains of C. asiatica when compared to placebo. However, it could improve mood by increasing alert scores [SMD: 0.71 (95% CI; 0.01 to 1.41); I2 = 30.5%] and decreasing anger scores at 1 hour after treatment [SMD: -0.81 (95%CI; -1.51 to -0.09); I2 = 36.6%]. None of the studies reported adverse effects of C. asiatica. In conclusion, there is not strong evidence to support the use of C. asiatica for cognitive function improvement in each cognitive domain. C. asiatica could improve alertness and relieve anger. However, some limitations should be aware including dose regimen, plant preparation, standardization, and product variation. Future well-designed clinical trials using suitable doses of standardized C. asiatica are still needed.
    MeSH terms: Affect/drug effects*; Cognition/drug effects*; Humans; Quality of Life; Triterpenes/pharmacology*; Dietary Supplements; Centella/chemistry*
  2. Poznanski RR, Cacha LA, Al-Wesabi YMS, Ali J, Bahadoran M, Yupapin PP, et al.
    Sci Rep, 2017 09 06;7(1):10675.
    PMID: 28878253 DOI: 10.1038/s41598-017-07626-6
    A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
    MeSH terms: Paper; Publications
  3. Yeoh SH, Tam CL, Wong CP, Bonn G
    Front Psychol, 2017;8:1411.
    PMID: 28878710 DOI: 10.3389/fpsyg.2017.01411
    The 2015 National Health and Morbidity Survey estimated that over 29% of the adult population of Malaysia suffers from mental distress, a nearly 3-fold increase from the 10.7% estimated by the NHMS in 1996 pointing to the potential beginnings of a public health crisis. This study aimed to better understand this trend by assessing depressive symptoms and their correlates in a cross-section of Malaysians. Specifically, it assesses stress, perceived locus of control, and various socio-demographic variables as possible predictors of depressive symptoms in the Malaysian context. A total of 728 adults from three Malaysian states (Selangor, Penang, Terengganu) completed Beck's depression inventory as well as several other measures: 10% of respondents reported experiencing severe levels of depressive symptoms, 11% reported moderate and 15% reported mild depressive symptoms indicating that Malaysians are experiencing high levels of emotional distress. When controlling for the influence of other variables, depressive symptoms were predictably related to higher levels of stress and lower levels of internal locus of control. Ethnic Chinese Malaysians, housewives and those engaged in professional-type occupations reported less depressive symptoms. Business owners reported more depressive symptoms. Further research should look more into Malaysians' subjective experience of stress and depression as well as explore environmental factors that may be contributing to mental health issues. It is argued that future policies can be designed to better balance individual mental health needs with economic growth.
    MeSH terms: Adult; Demography; Depression; Depressive Disorder; Emotions; Humans; Internal-External Control; Malaysia; Mental Health; Occupations; Psychiatric Status Rating Scales; Public Health; Surveys and Questionnaires; Stress, Psychological; Economic Development
  4. Patel I, Hussain R, Khan A, Ahmad A, Khan MU, Hassalai MAA
    PMID: 28878929 DOI: 10.1186/s40545-017-0118-6
  5. Teah YF, Abduraman MA, Amanah A, Adenan MI, Fariza Sulaiman S, Tan ML
    Data Brief, 2017 Oct;14:584-591.
    PMID: 28879216 DOI: 10.1016/j.dib.2017.08.008
    The data presented in this article are related to the research article entitled "The effects of deoxyelephantopin on the cardiac delayed rectifier potassium channel current (IKr) and human ether-a-go-go-related gene (hERG) expression" (Y.F. Teah, M.A. Abduraman, A. Amanah, M.I. Adenan, S.F. Sulaiman, M.L. Tan) [1], which the possible hERG blocking properties of deoxyelephantopin were investigated. This article describes the construction of human embryonic kidney 293 (HEK293) cells overexpressing HERG potassium channel and verification of the presence of hERG mRNA and protein expression in this recombinant cell line.
    MeSH terms: Quaternary Ammonium Compounds; Ethers; Heart; Humans; Lactones; RNA, Messenger; Sesquiterpenes; Potassium Channels; Delayed Rectifier Potassium Channels; HEK293 Cells
  6. Rahim MHA, Hasan H, Harith HH, Abbas A
    Bioprocess Biosyst Eng, 2017 Dec;40(12):1753-1761.
    PMID: 28879627 DOI: 10.1007/s00449-017-1830-y
    This study investigates the effects of viscosity, friction, and sonication on the morphology and the production of lovastatin, (+)-geodin, and sulochrin by Aspergillus terreus ATCC 20542. Sodium alginate and gelatine were used to protect the fungal pellet from mechanical force by increasing the media viscosity. Sodium alginate stimulated the production of lovastatin by up to 329.0% and sulochrin by 128.7%, with inhibitory effect on (+)-geodin production at all concentrations used. However, the use of gelatine to increase viscosity significantly suppressed lovastatin, (+)-geodin, and sulochrin's production (maximum reduction at day 9 of 42.7, 60.8, and 68.3%, respectively), which indicated that the types of chemical play a major role in metabolite production. Higher viscosity increased both pellet biomass and size in all conditions. Friction significantly increased (+)-geodin's titre by 1527.5%, lovastatin by 511.1%, and sulochrin by 784.4% while reducing pellet biomass and size. Conversely, sonication produced disperse filamentous morphology with significantly lower metabolites. Sodium alginate-induced lovastatin and sulochrin production suggest that these metabolites are not affected by viscosity; rather, their production is affected by the specific action of certain chemicals. In contrast, low viscosity adversely affected (+)-geodin's production, while pellet disintegration can cause a significant production of (+)-geodin.
  7. Cheng HS, Ton SH, Tan JBL, Abdul Kadir K
    Nutrients, 2017 Sep 07;9(9).
    PMID: 28880217 DOI: 10.3390/nu9090984
    The clinical value of tocotrienols is increasingly appreciated because of the unique therapeutic effects that are not shared by tocopherols. However, their effect on metabolic syndrome is not well-established. This study aimed to investigate the effects of a tocotrienol-rich fraction (TRF) from palm oil in high-fat-diet-treated rats. Male, post-weaning Sprague Dawley rats were provided high-fat (60% kcal) diet for eight weeks followed by a TRF (60 mg/kg) treatment for another four weeks. Physical, metabolic, and histological changes were compared to those on control and high-fat diets respectively. High-fat feeding for eight weeks induced all hallmarks of metabolic syndrome. The TRF reversed systolic and diastolic hypertension, hypercholesterolemia, hepatic steatosis, impaired antioxidant defense, and myeloperoxidase hyperactivity triggered by the high-fat diet. It also conferred an inhibitory effect on protein glycation to reduce glycated hemoglobin A1c and advanced glycation end products (AGE). This was accompanied by the suppression of the receptor for advanced glycation end product (RAGE) expression in the liver. The treatment effects on visceral adiposity, glycemic control, triglyceride level, as well as peroxisome proliferator-activated receptor α and γ expression were negligible. To conclude, treatment with a TRF exhibited protective effects on the cardiovascular and liver health in addition to the amelioration of plasma redox imbalance and AGE-RAGE activation. Further investigation as a therapy for metabolic syndrome is therefore worthwhile.
    MeSH terms: Advanced Glycosylation End Product-Specific Receptor/metabolism*; Animals; Body Composition; Energy Intake; Eating; Glucose Tolerance Test; Humans; Hypertension/chemically induced*; Male; Random Allocation; Weight Gain; Glycosylation End Products, Advanced/metabolism*; Rats, Sprague-Dawley; Tocotrienols/pharmacology*; Adiposity; Rats; Diet, High-Fat/adverse effects*
  8. Mohd Hanafiah K, Arifin N, Bustami Y, Noordin R, Garcia M, Anderson D
    Diagnostics (Basel), 2017 Sep 07;7(3).
    PMID: 28880218 DOI: 10.3390/diagnostics7030051
    Lateral flow assays (LFAs) are the mainstay of rapid point-of-care diagnostics, with the potential to enable early case management and transform the epidemiology of infectious disease. However, most LFAs only detect single biomarkers. Recognizing the complex nature of human disease, overlapping symptoms and states of co-infections, there is increasing demand for multiplexed systems that can detect multiple biomarkers simultaneously. Due to innate limitations in the design of traditional membrane-based LFAs, multiplexing is arguably limited to a small number of biomarkers. Here, we summarize the need for multiplexed LFA, key technical and operational challenges for multiplexing, inherent in the design and production of multiplexed LFAs, as well as emerging enabling technologies that may be able to address these challenges. We further identify important areas for research in efforts towards developing multiplexed LFAs for more impactful diagnosis of infectious diseases.
  9. Rabbolini DJ, Morel-Kopp MC, Chen Q, Gabrielli S, Dunlop LC, Chew LP, et al.
    J Thromb Haemost, 2017 Nov;15(11):2245-2258.
    PMID: 28880435 DOI: 10.1111/jth.13843
    Essentials The phenotypes of different growth factor-independent 1B (GFI1B) variants are not established. GFI1B variants produce heterogeneous clinical phenotypes dependent on the site of mutation. Mutation of the first non-DNA-binding zinc-finger causes a mild platelet and clinical phenotype. GFI1B regulates the CD34 promoter; platelet CD34 expression is an indicator of GFI1B mutation.

    SUMMARY: Background Mutation of the growth factor-independent 1B (GFI1B) fifth DNA-binding zinc-finger domain causes macrothrombocytopenia and α-granule deficiency leading to clinical bleeding. The phenotypes associated with GFI1B variants disrupting non-DNA-binding zinc-fingers remain uncharacterized. Objectives To determine the functional and phenotypic consequences of GFI1B variants disrupting non-DNA-binding zinc-finger domains. Methods The GFI1B C168F variant and a novel GFI1B c.2520 + 1_2520 + 8delGTGGGCAC splice variant were identified in four unrelated families. Phenotypic features, DNA-binding properties and transcriptional effects were determined and compared with those in individuals with a GFI1B H294 fs mutation of the fifth DNA-binding zinc-finger. Patient-specific induced pluripotent stem cell (iPSC)-derived megakaryocytes were generated to facilitate disease modeling. Results The DNA-binding GFI1B variant C168F, which is predicted to disrupt the first non-DNA-binding zinc-finger domain, is associated with macrothrombocytopenia without α-granule deficiency or bleeding symptoms. A GFI1B splice variant, c.2520 + 1_2520 + 8delGTGGGCAC, which generates a short GFI1B isoform that lacks non-DNA-binding zinc-fingers 1 and 2, is associated with increased platelet CD34 expression only, without quantitative or morphologic platelet abnormalities. GFI1B represses the CD34 promoter, and this repression is attenuated by different GFI1B zinc-finger mutations, suggesting that deregulation of CD34 expression occurs at a direct transcriptional level. Patient-specific iPSC-derived megakaryocytes phenocopy these observations. Conclusions Disruption of GFI1B non-DNA-binding zinc-finger 1 is associated with mild to moderate thrombocytopenia without α-granule deficiency or bleeding symptomatology, indicating that the site of GFI1B mutation has important phenotypic implications. Platelet CD34 expression appears to be a common feature of perturbed GFI1B function, and may have diagnostic utility.

    MeSH terms: Cells, Cultured; Cytoplasmic Granules/metabolism*; Gene Expression Regulation; Heterozygote; Humans; Megakaryocytes/metabolism*; Mutation*; Pedigree; Phenotype; Promoter Regions, Genetic; Proto-Oncogene Proteins/genetics*; Repressor Proteins/genetics*; Thrombocytopenia/blood*; Thrombocytopenia/diagnosis; Thrombocytopenia/genetics*; Transcription, Genetic; Zinc Fingers/genetics*; Antigens, CD34/blood; Antigens, CD34/genetics*; Genetic Predisposition to Disease; Heredity; Induced Pluripotent Stem Cells/metabolism*
  10. Poznanski RR, Cacha LA, Ali J, Rizvi ZH, Yupapin P, Salleh SH, et al.
    PLoS One, 2017;12(9):e0183677.
    PMID: 28880876 DOI: 10.1371/journal.pone.0183677
    A cable model that includes polarization-induced capacitive current is derived for modeling the solitonic conduction of electrotonic potentials in neuronal branchlets with microstructure containing endoplasmic membranes. A solution of the nonlinear cable equation modified for fissured intracellular medium with a source term representing charge 'soakage' is used to show how intracellular capacitive effects of bound electrical charges within mitochondrial membranes can influence electrotonic signals expressed as solitary waves. The elastic collision resulting from a head-on collision of two solitary waves results in localized and non-dispersing electrical solitons created by the nonlinearity of the source term. It has been shown that solitons in neurons with mitochondrial membrane and quasi-electrostatic interactions of charges held by the microstructure (i.e., charge 'soakage') have a slower velocity of propagation compared with solitons in neurons with microstructure, but without endoplasmic membranes. When the equilibrium potential is a small deviation from rest, the nonohmic conductance acts as a leaky channel and the solitons are small compared when the equilibrium potential is large and the outer mitochondrial membrane acts as an amplifier, boosting the amplitude of the endogenously generated solitons. These findings demonstrate a functional role of quasi-electrostatic interactions of bound electrical charges held by microstructure for sustaining solitons with robust self-regulation in their amplitude through changes in the mitochondrial membrane equilibrium potential. The implication of our results indicate that a phenomenological description of ionic current can be successfully modeled with displacement current in Maxwell's equations as a conduction process involving quasi-electrostatic interactions without the inclusion of diffusive current. This is the first study in which solitonic conduction of electrotonic potentials are generated by polarization-induced capacitive current in microstructure and nonohmic mitochondrial membrane current.
    MeSH terms: Action Potentials/physiology*; Models, Neurological*; Neurons/physiology*; Mitochondrial Membranes/metabolism; Membrane Potential, Mitochondrial*
  11. Faseleh Jahromi M, Shokryazdan P, Idrus Z, Ebrahimi R, Liang JB
    PLoS One, 2017;12(9):e0184553.
    PMID: 28880894 DOI: 10.1371/journal.pone.0184553
    Palm kernel cake (PKC) is the main byproduct from the palm oil industry in several tropical countries that contains considerable amounts of oligosaccharide. We earlier demonstrated beneficial prebiotic effects of oligosaccharides extract of PKC (OligoPKC) in starter and finisher broiler birds. This study was envisaged to elucidate the effects of in ovo and/or oral administration of the OligoPKC on prenatal and post-hatched broiler chicks. A total of 140 broiler (Cobb500) eggs were randomly divided into two groups (n = 70 each), and on day 12 of incubation, eggs in one group received in ovo injection of 0.1 mL (containing 20 mg) of OligoPKC, while those in the other group received 0.1 mL of saline (placebo) solution. Of these in ovo placebo or OligoPKC injected eggs, after hatching, six chicks from each group were sampled for day-one analysis, while 48 chicks from each group were randomly allocated to two dietary regimes involving either no feeding or feeding of OligoPKC through basal diet for a 14 days experiment forming the experimental groups as: (i) saline-injected (Control, C), (ii) OligoPKC-injected (PREBovo), (iii) saline-injected, but fed 1% OligoPKC (PREBd), and (iv) OligoPKC-injected and also 1% OligoPKC (PREBovo+d). In ovo injection of prebiotic OligoPKC had no effect on body weight and serum immunoglobulins concentrations of day old chicks, except for IgG, which was increased significantly (P<0.05). Body weight and feed conversion ratio of 14 days old chicks were neither affected by in ovo injection nor feeding of OligoPKC. However, populations of cecal total bacteria and major beneficial bacteria of the chicks were markedly enhanced by feeding of OligoPKC (PREBd and PREBovo+d > C and PREBovo), but lesser influenced by in ovo OligoPKC injection. Irrespective of its prior in ovo exposure, chicks fed OligoPKC diets had lower population of pathogenic bacteria. Overall serum immunoglobulin status of birds was improved by feeding of OligoPKC but in ovo OligoPKC injection had minor effect on that. In most cases, in ovo OligoPKC injection and feeding of OligoPKC reduced the expression of nutrient transporters in the intestine and improved antioxidant capacity of liver and serum. It is concluded that in ovo injection of OligoPKC increased IgG production and antioxidant capacity in serum and liver of prenatal chicks and had limited carrying-over effects on the post-hatched chicks comparing to the supplementary feeding of OligoPKC.
    MeSH terms: Administration, Oral; Animals; Animal Feed*; Chick Embryo; Chickens; Oligosaccharides/administration & dosage; Oligosaccharides/pharmacology*; Oligosaccharides/chemistry; Arecaceae/metabolism; Arecaceae/chemistry*
  12. Sukeri S, Mirzaei M, Jan S
    Int Health, 2017 01;9(1):29-35.
    PMID: 28028130 DOI: 10.1093/inthealth/ihw054
    BACKGROUND: Malaysia is an upper-middle income country with a tax-based health financing system. Health care is relatively affordable, and safety nets are provided for the needy. The objectives of this study were to determine the out-of-pocket health spending, proportion of catastrophic health spending (out-of-pocket spending >40% of non-food expenditure), economic hardship and financial coping strategies among patients with ischaemic heart disease (IHD) in Malaysia under the present health financing system.

    METHODS: A cross-sectional study was conducted at the National Heart Institute of Malaysia involving 503 patients who were hospitalized during the year prior to the survey.

    RESULTS: The mean annual out-of-pocket health spending for IHD was MYR3045 (at the time US$761). Almost 16% (79/503) suffered from catastrophic health spending (out-of-pocket health spending ≥40% of household non-food expenditures), 29.2% (147/503) were unable to pay for medical bills, 25.0% (126/503) withdrew savings to help meet living expenses, 16.5% (83/503) reduced their monthly food consumption, 12.5% (63/503) were unable to pay utility bills and 9.0% (45/503) borrowed money to help meet living expenses.

    CONCLUSIONS: Overall, the economic impact of IHD on patients in Malaysia was considerable and the prospect of economic hardship likely to persist over the years due to the long-standing nature of IHD. The findings highlight the need to evaluate the present health financing system in Malaysia and to expand its safety net coverage for vulnerable patients.

    MeSH terms: Adult; Aged; Aged, 80 and over; Cross-Sectional Studies; Health Expenditures/statistics & numerical data*; Female; Financing, Personal/statistics & numerical data*; Humans; Malaysia; Male; Middle Aged; Poverty; Surveys and Questionnaires; Taxes/economics*; Health Care Costs/statistics & numerical data*; Myocardial Ischemia/economics*; Myocardial Ischemia/therapy*; Healthcare Financing*
  13. Lee TH, Wani WA, Koay YS, Kavita S, Tan ETT, Shreaz S
    Food Res Int, 2017 10;100(Pt 1):14-27.
    PMID: 28873672 DOI: 10.1016/j.foodres.2017.07.036
    Edible bird's nest (EBN) is an expensive animal bioproduct due to its reputation as a food and delicacy with diverse medicinal properties. One kilogram of EBN costs ~$6000 in China. EBN and its products are consumed in mostly Asian countries such as China, Hong Kong, Taiwan, Singapore, Malaysia, Indonesia, Vietnam and Thailand, making up almost 1/3 of world population. The rapid growth in EBN consumption has led to a big rise in the trade scale of its global market. Presently, various fake materials such as tremella fungus, pork skin, karaya gum, fish swimming bladder, jelly, agar, monosodium glutamate and egg white are used to adulterate EBNs for earning extra profits. Adulterated or fake EBN may be hazardous to the consumers. Thus, it is necessary to identify of the adulterants. Several sophisticated techniques based on genetics, immunochemistry, spectroscopy, chromatography and gel electrophoresis have been used for the detection of various types of adulterants in EBN. This article describes the recent advances in the authentication methods for EBN. Different genetic, immunochemical, spectroscopic and analytical methods such as genetics (DNA) based techniques, enzyme-linked immunosorbent assays, Fourier transform infrared and Raman spectroscopic techniques, and chromatographic and gel electrophoretic methods have been discussed. Besides, significance of the reported methods that might pertain them to applications in EBN industry has been described. Finally, efforts have been made to discuss the challenges and future perspectives of the authentication methods for EBN.
    MeSH terms: Red Meat; Agar; Animals; Birds; Urinary Bladder; China; Chromatography; DNA; Egg White; Electrophoresis; Enzyme-Linked Immunosorbent Assay; Food; Fourier Analysis; Fungi; Hong Kong; Immunochemistry; Indonesia; Karaya Gum; Malaysia; Singapore; Sodium Glutamate; Spectrum Analysis; Swimming; Swine; Taiwan; Thailand; Vietnam; Egg Hypersensitivity
  14. Bin Sintang MD, Danthine S, Brown A, Van de Walle D, Patel AR, Tavernier I, et al.
    Food Res Int, 2017 10;100(Pt 1):832-840.
    PMID: 28873756 DOI: 10.1016/j.foodres.2017.07.079
    Monoglycerides (MGs) and phytosterols (PS) are known to form firm oleogels with liquid oil. However, the oleogels are prone to undergo polymorphic transition over time that lead to crystals' aggregation thus, compromises physical properties. Thus, we combined MGs with PS to control the crystallization and modify the morphology of the combination oleogels, as both components are reported to interact together. The oleogels were prepared at different ratio combinations and characterized in their rheological, thermal, morphology, and diffraction properties. The results showed that the 8:2 MGP:PS exhibited higher storage modulus (G') than the MGP mono-component. The combination oleogels exhibited effects on the crystallization and polymorphic transition. Consequently, the effects led to change in the morphology of the combination oleogels which was visualized using optical and electron microscope. The resultant effect on the morphology is associated with crystal defect. Due to observable crystals of MGP and PS, it is speculated that the combination oleogels formed a mixed crystal system. This was confirmed with diffraction analysis in which the corresponding peaks from MGP and PS were observed in the combination oleogels. However, the 8:2 oleogel exhibited additional peak at 35.41Å. Ultimately, the 8:2 was the optimum combination observed in our study. Interestingly, this combination is inspired by nature as sterols (phytosterols) are natural component of lipid membrane whilst MGP has properties similar to phospholipids. Hence, the results of our study not only beneficial for oil structuring, but also for the fields of biophysical and pharmaceutical.
    MeSH terms: Elasticity; Organic Chemicals/chemistry; Phytosterols/chemistry*; Temperature; Viscosity; X-Ray Diffraction; Cryoelectron Microscopy; Monoglycerides/chemistry*
  15. Austin CM, Tan MH, Harrisson KA, Lee YP, Croft LJ, Sunnucks P, et al.
    Gigascience, 2017 08 01;6(8):1-6.
    PMID: 28873963 DOI: 10.1093/gigascience/gix063
    One of the most iconic Australian fish is the Murray cod, Maccullochella peelii (Mitchell 1838), a freshwater species that can grow to ∼1.8 metres in length and live to age ≥48 years. The Murray cod is of a conservation concern as a result of strong population contractions, but it is also popular for recreational fishing and is of growing aquaculture interest. In this study, we report the whole genome sequence of the Murray cod to support ongoing population genetics, conservation, and management research, as well as to better understand the evolutionary ecology and history of the species. A draft Murray cod genome of 633 Mbp (N50 = 109 974bp; BUSCO and CEGMA completeness of 94.2% and 91.9%, respectively) with an estimated 148 Mbp of putative repetitive sequences was assembled from the combined sequencing data of 2 fish individuals with an identical maternal lineage; 47.2 Gb of Illumina HiSeq data and 804 Mb of Nanopore data were generated from the first individual while 23.2 Gb of Illumina MiSeq data were generated from the second individual. The inclusion of Nanopore reads for scaffolding followed by subsequent gap-closing using Illumina data led to a 29% reduction in the number of scaffolds and a 55% and 54% increase in the scaffold and contig N50, respectively. We also report the first transcriptome of Murray cod that was subsequently used to annotate the Murray cod genome, leading to the identification of 26 539 protein-coding genes. We present the whole genome of the Murray cod and anticipate this will be a catalyst for a range of genetic, genomic, and phylogenetic studies of the Murray cod and more generally other fish species of the Percichthydae family.
    MeSH terms: Animals; Australia; Perciformes/genetics*; Repetitive Sequences, Nucleic Acid; Gene Library; Genome*; Gene Expression Profiling; Molecular Sequence Annotation; Transcriptome
  16. Mohd Salleh F, Ramos-Madrigal J, Peñaloza F, Liu S, Mikkel-Holger SS, Riddhi PP, et al.
    Gigascience, 2017 08 01;6(8):1-8.
    PMID: 28873965 DOI: 10.1093/gigascience/gix053
    Southeast (SE) Asia is 1 of the most biodiverse regions in the world, and it holds approximately 20% of all mammal species. Despite this, the majority of SE Asia's genetic diversity is still poorly characterized. The growing interest in using environmental DNA to assess and monitor SE Asian species, in particular threatened mammals-has created the urgent need to expand the available reference database of mitochondrial barcode and complete mitogenome sequences. We have partially addressed this need by generating 72 new mitogenome sequences reconstructed from DNA isolated from a range of historical and modern tissue samples. Approximately 55 gigabases of raw sequence were generated. From this data, we assembled 72 complete mitogenome sequences, with an average depth of coverage of ×102.9 and ×55.2 for modern samples and historical samples, respectively. This dataset represents 52 species, of which 30 species had no previous mitogenome data available. The mitogenomes were geotagged to their sampling location, where known, to display a detailed geographical distribution of the species. Our new database of 52 taxa will strongly enhance the utility of environmental DNA approaches for monitoring mammals in SE Asia as it greatly increases the likelihoods that identification of metabarcoding sequencing reads can be assigned to reference sequences. This magnifies the confidence in species detections and thus allows more robust surveys and monitoring programmes of SE Asia's threatened mammal biodiversity. The extensive collections of historical samples from SE Asia in western and SE Asian museums should serve as additional valuable material to further enrich this reference database.
    MeSH terms: Animals; Asia, Southeastern; Mammals/genetics*; Phylogeny; Genetic Variation; Reproducibility of Results; Computational Biology/methods; Genomics/methods; Databases, Nucleic Acid*; Biodiversity; Genome, Mitochondrial*; DNA Barcoding, Taxonomic; Phylogeography; Molecular Sequence Annotation
  17. Khoo JJ, Lim FS, Tan KK, Chen FS, Phoon WH, Khor CS, et al.
    J Med Entomol, 2017 09 01;54(5):1444-1448.
    PMID: 28874019 DOI: 10.1093/jme/tjx131
    Spirochetes from the Borrelia genus are known to cause diseases in humans, namely Lyme disease and relapsing fever. These organisms are commonly transmitted to humans by arthropod vectors including ticks, mite, and lice. Here, we report the molecular detection of a Borrelia sp. from a Haemaphysalis hystricis Supino tick collected from wildlife in an Orang Asli settlement in Selangor, Malaysia. Phylogenetic analyses of partial 16s rRNA and flaB gene sequences revealed that the Borrelia sp. is closely related to the relapsing fever group borreliae, Borrelia lonestari, Borrelia miyamotoi, and Borrelia theileri, as well as a number of uncharacterized Borrelia sp. from ticks in Portugal and Japan. To our knowledge, this is the first report of a Borrelia sp. detected in H. hystricis, and in Malaysia. The zoonotic potential of this Borrelia sp. merits further investigation.
    MeSH terms: Animals; Borrelia/classification*; Borrelia/genetics; Borrelia/isolation & purification*; Flagellin/genetics; Malaysia; Phylogeny; RNA, Bacterial/genetics; RNA, Ribosomal, 16S/genetics; Sequence Analysis, RNA; Ixodidae/microbiology*; Sus scrofa/parasitology
  18. Bougangue B, Ling HK
    BMC Public Health, 2017 09 06;17(1):693.
    PMID: 28874157 DOI: 10.1186/s12889-017-4680-2
    BACKGROUND: The need to promote maternal health in Ghana has committed the government to extend maternal healthcare services to the door steps of rural families through the community-based Health Planning and Services. Based on the concerns raised in previous studies that male spouses were indifferent towards maternal healthcare, this study sought the views of men on their involvement in maternal healthcare in their respective communities and at the household levels in the various Community-based Health Planning and Services zones in Awutu-Senya West District in the Central Region of Ghana.

    METHODS: A qualitative method was employed. Focus groups and individual interviews were conducted with married men, community health officers, community health volunteers and community leaders. The participants were selected using purposive, quota and snowball sampling techniques. The study used thematic analysis for analysing the data.

    RESULTS: The study shows varying involvement of men, some were directly involved in feminine gender roles; others used their female relatives and co-wives to perform the women's roles that did not have space for them. They were not necessarily indifferent towards maternal healthcare, rather, they were involved in the spaces provided by the traditional gender division of labour. Amongst other things, the perpetuation and reinforcement of traditional gender norms around pregnancy and childbirth influenced the nature and level of male involvement.

    CONCLUSIONS: Sustenance of male involvement especially, husbands and CHVs is required at the household and community levels for positive maternal outcomes. Ghana Health Service, health professionals and policy makers should take traditional gender role expectations into consideration in the planning and implementation of maternal health promotion programmes.

    MeSH terms: Adult; Attitude to Health*; Female; Gender Identity; Ghana; Humans; Male; Maternal Health Services/organization & administration*; Middle Aged; Pregnancy; Rural Population/statistics & numerical data; Focus Groups; Spouses/psychology*; Spouses/statistics & numerical data; Community Health Planning/organization & administration*; Rural Health Services/organization & administration*; Qualitative Research
  19. Zhang W, Chen S, Mahalingam S, Wang M, Cheng A
    J Gen Virol, 2017 Oct;98(10):2413-2420.
    PMID: 28874226 DOI: 10.1099/jgv.0.000908
    Tembusu virus (TMUV, genus Flavivirus, family Flaviviridae) was first isolated in 1955 from Culex tritaeniorhynchus mosquitoes in Kuala Lumpur, Malaysia. In April 2010, duck TMUV was first identified as the causative agent of egg-drop syndrome, characterized by a substantial decrease in egg laying and depression, growth retardation and neurological signs or death in infected egg-laying and breeder ducks, in the People's Republic of China. Since 2010, duck TMUV has spread to most of the duck-producing regions in China, including many of the coastal provinces, neighbouring regions and certain Southeast Asia areas (i.e. Thailand and Malaysia). This review describes the current understanding of the genome characteristics, host range, transmission, epidemiology, phylogenetic and immune evasion of avian-origin TMUV and the innate immune response of the host.
    MeSH terms: Animals; China/epidemiology; Culex/virology; Ducks/immunology; Ducks/virology*; Flavivirus/genetics*; Flavivirus/immunology; Flavivirus/isolation & purification; Insect Vectors/virology; Poultry Diseases/epidemiology*; Poultry Diseases/transmission; Poultry Diseases/virology; Genome, Viral/genetics; Flavivirus Infections/transmission*; Flavivirus Infections/veterinary*; Flavivirus Infections/virology; Immune Evasion; Host Specificity
  20. Suneel VB, Kotian S, Jujare RH, Shetty AK, Nidhi S, Grover S
    J Contemp Dent Pract, 2017 Sep 01;18(9):821-825.
    PMID: 28874648
    BACKGROUND: Obstructive sleep apnea (OSA) is one of the common prevalent conditions present worldwide. The process of abnormal habits related to clenching and grinding of teeth is referred to as bruxism and is characterized under the heading of parafunctional activity of the masticatory system. Osseointegrated dental implants represent advancements in the field of odontology. Despite its high success rate, failure and complications are often associated with dental implant treatment due to a number of factors. Hence, we aimed for the present study to assess the incidence of prosthetic complications in patients rehabilitated with implant-borne prosthesis in a sleep disorder unit.

    MATERIALS AND METHODS: The present study included the assessment of all the patients who underwent prosthetic rehabilitation by dental implants. An experienced registered prosthodontist was given duty for examination of all the cases from the record file data. Prosthetic complications in the patients were identified using photographs, radiographs, and all other relevant data of the patients obtained from the record files. All types of complications and other factors were recorded separately and analyzed.

    RESULTS: While correlating the prosthetic complications in OSA patients grouped based on number of dental implants, nonsignificant results were obtained. Significant correlation was observed while comparing the prosthetic complications divided based on type of prosthesis. Fracture of the porcelain was observed in four and eight cases respectively, of screwed and cemented dental implant cases.

    CONCLUSION: Some amount of significant correlation existed between the incidences of prosthetic complications and OSA.

    CLINICAL SIGNIFICANCE: Proper history of the patients undergoing dental implant procedures should be taken to avoid failure.

    MeSH terms: Humans; Postoperative Complications/etiology; Postoperative Complications/epidemiology*; Incidence; Sleep Apnea, Obstructive/etiology; Sleep Apnea, Obstructive/epidemiology*
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