Browse publications by year: 2018

  1. Teoh HL, Ahmad IS, Johari NMK, Aminudin N, Abdullah N
    Int J Med Mushrooms, 2018;20(4):369-380.
    PMID: 29953397 DOI: 10.1615/IntJMedMushrooms.2018025986
    Mushroom cultivation has become an important component of agriculture, providing food and contributing to the global economy. It uses vertical space and addresses issues of food quality, health improvement, and environmental sustainability. Auricularia mushrooms are popular ingredients in traditional Chinese cuisine. The objective of this study was to determine yield and evaluate radical scavenging capacity of A. polytricha cultivated on rubberwood sawdust on a large scale; we measured total phenolic content; DPPH, hydroxyl, superoxide anion, and peroxyl radical scavenging; and reducing power. Cultivation on rubberwood sawdust produces an average of 4 harvests per bag and a biological efficiency of 80-82%. The antioxidant capacity investigations revealed that the ethyl acetate fraction was the most potent radical scavenger in all assays except that for superoxide anions, whereas the aqueous fraction exhibited mild to moderate antioxidant capacity in scavenging the various radicals. Artificial cultivation of A. polytricha on rubberwood sawdust yields many sporophores with potent antioxidant capacity.
    MeSH terms: Agaricales/growth & development*; Agaricales/metabolism*; Antioxidants/metabolism*; Flavonoids/analysis; Free Radicals; Paper; Peroxides/metabolism; Phenols/analysis; Superoxides/analysis; Wood/microbiology; Hydroxyl Radical/analysis; Fruiting Bodies, Fungal/metabolism
  2. Wong LC, Jamil A, Md Nor N
    Photodermatol Photoimmunol Photomed, 2018 Nov;34(6):400-404.
    PMID: 29953669 DOI: 10.1111/phpp.12410
    BACKGROUND: Ethnicity, skin phototype and colour influenced minimal erythema dose (MED). Sun exposure has been postulated to increase MED. We determined immediate pigment darkening dose to UVA (IPDDA), MED and minimal melanogenic dose (MMD) for UVB and UVA, and investigated factors affecting these doses.

    METHODS: Skin phototype was determined using Fitzpatrick phototype quiz, DSMII ColorMeter measured skin colours, sun exposure quantified using an index (SEI) and phototest performed with MEDlight-Multitester.

    RESULTS: A total of 167 healthy volunteers participated. There were 110 (66%) females and 56 (34%) males; 124 (74.7%) were Malay, 27 (16.3%) Chinese and 14 (8.4%) Indians. One hundred and nine (65.7%) skin phototype IV, 30 (18.1%) phototype III and 27 (16.3%) phototype V. IPDDA ranges from 6 ± 1.5-5.7 ± 1.4 J/cm2 . MED-UVB were 96.9 ± 17.6, 124 ± 29.3 and 118.6 ± 27.4 mJ/cm2 for phototype III, IV and V, respectively. All MED-UVA were outside the tested dose range of 3.6-11 J/cm2 . MMD-UVB were 106 ± 18.2, 134 ± 25.6 and 136 ± 31.1 mJ/cm2 while MMD-UVA were 4.1 ± 4.1, 4.9 ± 3.8 and 5.7 ± 3.7 J/cm2 respectively for phototypes III, IV and V. MED-UVB, MMD-UVB and MMD-UVA did not depend on skin phototype. Facultative skin whiteness (L*), erythema (E) and melanin content (M) correlated significantly with MED-UVB while constitutive skin colours were significant for L*, yellowness (b*), E and M. Sun exposure did not significantly correlate with MED-UVB and MMDs, however, an inverse relationship with MED-UVB was demonstrated.

    CONCLUSION: Minimal erythema doses in our cohort were slightly different from other regional countries. Constitutive and facultative skin whiteness, erythema and melanin content correlated with MED. There was no association between skin phototype and sun exposure with MED or MMD.

  3. Lee PY, Chin SF, Low TY, Jamal R
    J Proteomics, 2018 09 15;187:93-105.
    PMID: 29953962 DOI: 10.1016/j.jprot.2018.06.014
    Colorectal cancer (CRC) is one of the most prevalent malignancies worldwide. Biomarkers that can facilitate better clinical management of CRC are in high demand to improve patient outcome and to reduce mortality. In this regard, proteomic analysis holds a promising prospect in the hunt of novel biomarkers for CRC and in understanding the mechanisms underlying tumorigenesis. This review aims to provide an overview of the current progress of proteomic research, focusing on discovery and validation of diagnostic biomarkers for CRC. We will summarize the contributions of proteomic strategies to recent discoveries of protein biomarkers for CRC and also briefly discuss the potential and challenges of different proteomic approaches in biomarker discovery and translational applications.
    MeSH terms: Humans; Protein Processing, Post-Translational; Biomarkers, Tumor/analysis*; Biomarkers, Tumor/metabolism; Colorectal Neoplasms/metabolism*; Colorectal Neoplasms/pathology; Proteome/analysis*; Proteome/metabolism; Tissue Array Analysis
  4. Rabbi MF, Ghazali KH, Mohd II, Alqahtani M, Altwijri O, Ahamed NU
    J Back Musculoskelet Rehabil, 2018;31(6):1097-1104.
    PMID: 29945343 DOI: 10.3233/BMR-170988
    This study aimed to investigate the electrical activity of two muscles located at the dorsal surface during Islamic prayer (Salat). Specifically, the electromyography (EMG) activity of the erector spinae and trapezius muscles during four positions observed while performing Salat, namely standing, bowing, sitting and prostration, were investigated. Seven adult subjects with an average age of 28.1 (± 3.8) years were included in the study. EMG data were obtained from their trapezius and erector spinae muscles while the subjects maintained the specific positions of Salat. The EMG signal was analysed using time and frequency domain features. The results indicate that the trapezius muscle remains relaxed during the standing and sitting positions while the erector spinae muscle remains contracted during these two positions. Additionally, during the bowing and prostration positions of Salat, these two muscles exhibit the opposite activities: the trapezius muscle remains contracted while the erector spinae muscle remains relaxed. Overall, both muscles maintain a balance in terms of contraction and relaxation during bowing and prostration position. The irregularity of the neuro-muscular signal might cause pain and prevent Muslims from performing their obligatory prayer. This study will aid the accurate understanding of how the back muscles respond in specific postures during Salat.
    MeSH terms: Adult; Electromyography/methods*; Female; Humans; Islam*; Male; Posture/physiology*; Paraspinal Muscles/physiology*; Superficial Back Muscles/physiology*
  5. Ngoh KJ, Gouwanda D, Gopalai AA, Chong YZ
    J Biomech, 2018 07 25;76:269-273.
    PMID: 29945786 DOI: 10.1016/j.jbiomech.2018.06.006
    Wearable technology has been viewed as one of the plausible alternatives to capture human motion in an unconstrained environment, especially during running. However, existing methods require kinematic and kinetic measurements of human body segments and can be complicated. This paper investigates the use of neural network model (NN) and accelerometer to estimate vertical ground reaction force (VGRF). An experimental study was conducted to collect sufficient samples for training, validation and testing. The estimated results were compared with VGRF measured using an instrumented treadmill. The estimates yielded an average root mean square error of less than 0.017 of the body weight (BW) and a cross-correlation coefficient greater than 0.99. The results also demonstrated that NN could estimate impact force and active force with average errors ranging between 0.10 and 0.18 of BW at different running speeds. Using NN and uniaxial accelerometer can (1) simplify the estimation of VGRF, (2) reduce the computational requirement and (3) reduce the necessity of multiple wearable sensors to obtain relevant parameters.
    MeSH terms: Adult; Biomechanical Phenomena; Exercise Test; Humans; Male; Running/physiology*; Neural Networks (Computer)*; Young Adult; Accelerometry
  6. van der Ent A, Mak R, de Jonge MD, Harris HH
    Sci Rep, 2018 Jun 26;8(1):9683.
    PMID: 29946061 DOI: 10.1038/s41598-018-26891-7
    Hyperaccumulation is generally highly specific for a single element, for example nickel (Ni). The recently-discovered hyperaccumulator Glochidion cf. sericeum (Phyllanthaceae) from Malaysia is unusual in that it simultaneously accumulates nickel and cobalt (Co) with up to 1500 μg g-1 foliar of both elements. We set out to determine whether distribution and associated ligands for Ni and Co complexation differ in this species. We postulated that Co hyperaccumulation coincides with Ni hyperaccumulation operating on similar physiological pathways. However, the ostensibly lower tolerance for Co at the cellular level results in the exudation of Co on the leaf surface in the form of lesions. The formation of such lesions is akin to phytotoxicity responses described for manganese (Mn). Hence, in contrast to Ni, which is stored principally inside the foliar epidermal cells, the accumulation response to Co consists of an extracellular mechanism. The chemical speciation of Ni and Co, in terms of the coordinating ligands involved and principal oxidation state, is similar and associated with carboxylic acids (citrate for Ni and tartrate or malate for Co) and the hydrated metal ion. Some oxidation to Co3+, presumably on the surface of leaves after exudation, was observed.
    MeSH terms: Cobalt/metabolism*; Microscopy, Electron, Scanning; Nickel/metabolism*; Least-Squares Analysis; Ecosystem; Phyllanthus/metabolism*
  7. Ratanabanangkoon K, Simsiriwong P, Pruksaphon K, Tan KY, Chantrathonkul B, Eursakun S, et al.
    Sci Rep, 2018 06 26;8(1):9716.
    PMID: 29946111 DOI: 10.1038/s41598-018-27794-3
    In order to facilitate/expedite the production of effective and affordable snake antivenoms, a novel in vitro potency assay was previously developed. The assay is based on an antiserum's ability to bind to postsynaptic neurotoxin (PSNT) and thereby inhibit the PSNT binding to the nicotinic acetylcholine receptor (nAChR). The assay was shown to work well with antiserum against Thai Naja kaouthia which produces predominantly the lethal PSNTs. In this work, the assay is demonstrated to work well with antiserum/antivenom against Bungarus candidus (BC), which also produces lethal presynaptic neurotoxins, as well as antivenom against Sri Lankan Naja naja (NN), which produces an abundance of cytotoxins. The in vitro and in vivo median effective ratios (ER50s) for various batches of antisera against BC showed a correlation (R2) of 0.8922 (p 
    MeSH terms: Animals; Antivenins/metabolism*; Antivenins/pharmacology*; Protein Binding; Receptors, Nicotinic/metabolism*; Bungarus/metabolism*; Mice
  8. Baumann P, Kim J, Ahn SH, Kim HH, Chong HY, Wente MN
    Ann Med Surg (Lond), 2018 Jun;30:1-6.
    PMID: 29946452 DOI: 10.1016/j.amsu.2018.04.003
    Introduction: Various suture materials and suture techniques are used to perform gastrointestinal anastomosis after tumour resection, but the best combination is still a matter of debate.

    Methods: This multi-centre, international, single-arm, prospective observational study aimed at demonstrating the non-inferiority of a mid-term absorbable monofilament in comparison to braided sutures in gastrointestinal anastomosis. Monosyn suture was used to create the gastrointestinal anastomosis and the frequency of anastomotic leakage until day of discharge was chosen as the primary parameter. The outcome was compared to the results published for braided sutures in the literature. Secondary parameters were the time to perform the anastomosis, length of hospital stay, costs, and postoperative complications.

    Results: The anastomosis leakage rate was 2.91%, indicating that Monosyn suture was not inferior to braided sutures used in gastrointestinal anastomosis. Of the reported anastomotic suture techniques, the single layer continuous method was the fastest and most economical technique in the present observational study.

    Conclusion: Monosyn suture is safe and effective in gastrointestinal anastomosis and represents a good alternative to other sutures used for gastrointestinal anastomosis. With regard to safety, time and cost-efficiency, the single-layer continuous technique should be considered a preferred method. The transfer of results from clinical studies into daily practice with regard to surgical techniques for gastrointestinal anastomosis should be further evaluated in larger studies or in nationwide registries.

    MeSH terms: Humans; Length of Stay; Neoplasms; Patient Discharge; Postoperative Complications; Prospective Studies; Registries; Suture Techniques; Sutures; Anastomotic Leak
  9. Ali Y, Muhamad Bunnori N, Susanti D, Muhammad Alhassan A, Abd Hamid S
    Front Chem, 2018;6:210.
    PMID: 29946538 DOI: 10.3389/fchem.2018.00210
    Calixarene derivatives are reported as potential therapeutic agents. Azo derivatives of calixarenes have not been given much consideration to explore their biomedical applications. In the present study, some azo-based derivatives of calix[4]arene were synthesized and characterized and their antibacterial and antiviral potentials were studied. The mono azo products of sulphanilamide, sulfaguanidine and 2-methyl-4-aminobenzoic acid showed good activity against bacterial strains with minimum inhibition concentration values ranging from 0.97 to 62.5 μg/mL. For mono azo products, the diazotized salt was applied as a limiting reagent. The use of calix[4]arene and sodium acetate trihydrate in 1:3 (molar ratio) helped in partial substitution. Molecular docking was performed to see the interaction of the designed compounds with two bacterial and one viral (neuraminidase) receptor. Some of the derivatives showed good interaction with the active site of bacterial and neuraminidase enzymes through hydrogen, hydrophobic and pi-pi interactions, and could inhibit the activity of the selected enzymes.
    MeSH terms: Anti-Bacterial Agents; Antiviral Agents; Hydrogen; Microbial Sensitivity Tests; Neuraminidase; 4-Aminobenzoic Acid; Phenols; Sodium Chloride; Sulfaguanidine; Sodium Acetate; Catalytic Domain; Calixarenes; Molecular Docking Simulation
  10. Foong HF, Hamid TA, Ibrahim R, Haron SA
    Australas J Ageing, 2018 Jun 26.
    PMID: 29947130 DOI: 10.1111/ajag.12555
    OBJECTIVE: The main aim of this study was to examine whether neuroticism mediates the association between loneliness and cognitive function in older adults.

    METHODS: This study involved 2322 representative community residents aged 60-92 years in Peninsular Malaysia. Cognition was measured by Mini-Mental State Examination (MMSE), loneliness was assessed by three-item loneliness scale, and neuroticism was assessed by the Short-Form Revised Eysenck Personality Questionnaire. Hierarchical multiple linear regression and Sobel tests were used for mediation analyses.

    RESULTS: Both loneliness (β = -0.04, P = 0.03) and neuroticism (β = -0.07, P < 0.001) were negatively and significantly associated with cognitive function, and most importantly, neuroticism mediated the association between loneliness and cognition (from β = -0.04, P = 0.03 to β = -0.03, P = 0.10).

    CONCLUSION: Neuroticism may be the potential mechanism underlying the relationship between loneliness and cognitive function in older persons.

  11. Lee LC, Liong CY, Jemain AA
    Analyst, 2018 Jul 23;143(15):3526-3539.
    PMID: 29947623 DOI: 10.1039/c8an00599k
    Partial least squares-discriminant analysis (PLS-DA) is a versatile algorithm that can be used for predictive and descriptive modelling as well as for discriminative variable selection. However, versatility is both a blessing and a curse and the user needs to optimize a wealth of parameters before reaching reliable and valid outcomes. Over the past two decades, PLS-DA has demonstrated great success in modelling high-dimensional datasets for diverse purposes, e.g. product authentication in food analysis, diseases classification in medical diagnosis, and evidence analysis in forensic science. Despite that, in practice, many users have yet to grasp the essence of constructing a valid and reliable PLS-DA model. As the technology progresses, across every discipline, datasets are evolving into a more complex form, i.e. multi-class, imbalanced and colossal. Indeed, the community is welcoming a new era called big data. In this context, the aim of the article is two-fold: (a) to review, outline and describe the contemporary PLS-DA modelling practice strategies, and (b) to critically discuss the respective knowledge gaps that have emerged in response to the present big data era. This work could complement other available reviews or tutorials on PLS-DA, to provide a timely and user-friendly guide to researchers, especially those working in applied research.
    MeSH terms: Algorithms; Food Analysis; Research; Research Personnel; Technology; Discriminant Analysis; Least-Squares Analysis; Hand Strength; Forensic Sciences
  12. Ahmad MA, Yahya WJ, Ithnin AM, Hasannuddin AK, Bakar MAA, Fatah AYA, et al.
    Environ Sci Pollut Res Int, 2018 Aug;25(24):24266-24280.
    PMID: 29948709 DOI: 10.1007/s11356-018-2492-2
    Non-surfactant water-in-diesel emulsion fuel (NWD) is an alternative fuel that has the potential to reduce major exhaust emissions while simultaneously improving the combustion performance of a diesel engine. NWD comprises of diesel fuel and water (about 5% in volume) without any additional surfactants. This emulsion fuel is produced through an in-line mixing system that is installed very close to the diesel engine. This study focuses mainly on the performance and emission of diesel engine fuelled with NWD made from different water sources. The engine used in this study is a direct injection diesel engine with loads varying from 1 to 4 kW. The result shows that NWD made from tap water helps the engine to reduce nitrogen oxide (NOx) by 32%. Rainwater reduced it by 29% and seawater by 19%. In addition, all NWDs show significant improvements in engine performance as compared to diesel fuel, especially in the specific fuel consumption that indicates an average reduction of 6%. It is observed that all NWDs show compelling positive effects on engine performance, which is caused by the optimum water droplet size inside NWD.
    MeSH terms: Vehicle Emissions/analysis*; Emulsions/chemistry*; Equipment Design; Gasoline*; Nitrogen Oxides/analysis; Rain; Seawater; Surface-Active Agents/chemistry; Water/chemistry*; Motor Vehicles
  13. Saeed OA, Sazili AQ, Akit H, Alimon AR, Samsudin AAB
    Trop Anim Health Prod, 2018 Dec;50(8):1859-1864.
    PMID: 29948778 DOI: 10.1007/s11250-018-1636-1
    This study investigated the effect of different levels of corn supplementation as energy source into palm kernel cake-urea-treated rice straw basal diet on urinary excretion of purine derivatives, nitrogen utilization, rumen fermentation, and rumen microorganism populations. Twenty-seven Dorper lambs were randomly assigned to three treatment groups and kept in individual pens for a 120-day period. The animals were subjected to the dietary treatments as follows: T1: 75.3% PKC + 0% corn, T2: 70.3% PKC + 5% corn, and T3: 65.3% PKC + 10% corn. Hypoxanthine and uric acid excretion level were recorded similarly in lambs supplemented with corn. The microbial N yield and butyrate level was higher in corn-supplemented group, but fecal N excretion, T3 has the lowest level than other groups. Lambs fed T3 had a greater rumen protozoa population while the number of R. flavefaciens was recorded highest in T2. No significant differences were observed for total bacteria, F. succinogenes, R. albus, and methanogen population among all treatment. Based on these results, T3 could be fed to lambs without deleterious effect on the VFA and N balance.
    MeSH terms: Animals; Animal Feed/analysis*; Animal Nutritional Physiological Phenomena*; Bacteria; Body Weight; Zea mays*; Diet/veterinary*; Fermentation; Hydrogen-Ion Concentration; Nitrogen/chemistry; Purines; Oryza*; Rumen/metabolism*; Sheep; Urea/metabolism; Uric Acid/chemistry; Hypoxanthine/chemistry; Dietary Supplements; Sheep, Domestic
  14. Hafez P, Chowdhury SR, Jose S, Law JX, Ruszymah BHI, Mohd Ramzisham AR, et al.
    Cardiovasc Eng Technol, 2018 09;9(3):529-538.
    PMID: 29948837 DOI: 10.1007/s13239-018-0368-8
    Developing experimental models to study ischemic heart disease is necessary for understanding of biological mechanisms to improve the therapeutic approaches for restoring cardiomyocytes function following injury. The aim of this study was to develop an in vitro hypoxic/re-oxygenation model of ischemia using primary human cardiomyocytes (HCM) and define subsequent cytotoxic effects. HCM were cultured in serum and glucose free medium in hypoxic condition with 1% O2 ranging from 30 min to 12 h. The optimal hypoxic exposure time was determined using Hypoxia Inducible Factor 1α (HIF-1α) as the hypoxic marker. Subsequently, the cells were moved to normoxic condition for 3, 6 and 9 h to replicate the re-oxygenation phase. Optimal period of hypoxic/re-oxygenation was determined based on 50% mitochondrial injury via 3-(4,5-dimethylthiazol-2-Yl)-2,5-diphenyltetrazolium bromide assay and cytotoxicity via lactate dehydrogenase (LDH) assay. It was found that the number of cells expressing HIF-1α increased with hypoxic time and 3 h was sufficient to stimulate the expression of this marker in all the cells. Upon re-oxygenation, mitochondrial activity reduced significantly whereas the cytotoxicity increased significantly with time. Six hours of re-oxygenation was optimal to induce reversible cell injury. The injury became irreversible after 9 h as indicated by > 60% LDH leakage compared to the control group cultured in normal condition. Under optimized hypoxic reoxygenation experimental conditions, mesenchymal stem cells formed nanotube with ischemic HCM and facilitated transfer of mitochondria suggesting the feasibility of using this as a model system to study molecular mechanisms of myocardial injury and rescue.
    MeSH terms: Cell Survival; Cells, Cultured; Glucose/deficiency; Humans; L-Lactate Dehydrogenase/metabolism; Mitochondria, Heart/metabolism; Mitochondria, Heart/pathology; Oxygen/metabolism*; Time Factors; Biomarkers/metabolism; Myocardial Reperfusion Injury/metabolism*; Myocardial Reperfusion Injury/pathology; Cell Hypoxia; Coculture Techniques; Myocytes, Cardiac/metabolism*; Myocytes, Cardiac/pathology; Hypoxia-Inducible Factor 1, alpha Subunit/metabolism; Mesenchymal Stromal Cells/metabolism
  15. Zafar R, Kamel N, Naufal M, Malik AS, Dass SC, Ahmad RF, et al.
    Australas Phys Eng Sci Med, 2018 Sep;41(3):633-645.
    PMID: 29948968 DOI: 10.1007/s13246-018-0656-5
    Neuroscientists have investigated the functionality of the brain in detail and achieved remarkable results but this area still need further research. Functional magnetic resonance imaging (fMRI) is considered as the most reliable and accurate technique to decode the human brain activity, on the other hand electroencephalography (EEG) is a portable and low cost solution in brain research. The purpose of this study is to find whether EEG can be used to decode the brain activity patterns like fMRI. In fMRI, data from a very specific brain region is enough to decode the brain activity patterns due to the quality of data. On the other hand, EEG can measure the rapid changes in neuronal activity patterns due to its higher temporal resolution i.e., in msec. These rapid changes mostly occur in different brain regions. In this study, multivariate pattern analysis (MVPA) is used both for EEG and fMRI data analysis and the information is extracted from distributed activation patterns of the brain. The significant information among different classes is extracted using two sample t test in both data sets. Finally, the classification analysis is done using the support vector machine. A fair comparison of both data sets is done using the same analysis techniques, moreover simultaneously collected data of EEG and fMRI is used for this comparison. The final analysis is done with the data of eight participants; the average result of all conditions are found which is 65.7% for EEG data set and 64.1% for fMRI data set. It concludes that EEG is capable of doing brain decoding with the data from multiple brain regions. In other words, decoding accuracy with EEG MVPA is as good as fMRI MVPA and is above chance level.
    MeSH terms: Adult; Algorithms*; Behavior; Brain/physiology*; Brain Mapping*; Electroencephalography*; Female; Humans; Image Processing, Computer-Assisted; Magnetic Resonance Imaging*; Male; Multivariate Analysis; Young Adult
  16. Kulthanan K, Chusakul S, Recto MT, Gabriel MT, Aw DCW, Prepageran N, et al.
    Allergy Asthma Immunol Res, 2018 Jul;10(4):370-378.
    PMID: 29949833 DOI: 10.4168/aair.2018.10.4.370
    PURPOSE: Across Hong Kong, Malaysia, the Philippines, Singapore, Thailand and Vietnam, (referred to as Asia) approximately 30-53 million individuals of the 151 million employed suffer from allergic rhinitis (AR) and urticaria. It is estimated that approximately 90% of patients with these allergic conditions are insufficiently treated, impacting the socioeconomic burden in terms of absence from work and decreased productivity. This study aims to estimate the socioeconomic burden of allergies in Asia and the cost savings that their adequate management can provide. Due to the limited availability of regional data, this study focused AR and urticaria in selected countries.

    METHODS: Published literature, information from statistical bureaus, clinician surveys and extrapolation of selected data from the European Union were used to determine the socioeconomic costs of AR and urticaria.

    RESULTS: Many patients in Asia suffer from perennial allergies and experience symptoms of AR and urticaria for up to 298 days per year. An estimate of the indirect costs of patients insufficiently treated for AR and urticaria amounts to USD 105.4 billion a year, which equates to USD 1,137-2,195 per patient due to absenteeism and presenteeism. Adherence to guideline-approved treatment can lead to estimated savings of up to USD 104 billion.

    CONCLUSIONS: The current study suggests that within Asia, the socioeconomic impact of AR and urticaria is similar to that seen in the European Union in spite of the lower wages in Asia. This is due to the mainly perennial allergens prevailing in Asia, whereas the sensitization patterns observed in the European Union are dominated by seasonal exposure to pollen. These results underline the need for governmental initiatives to increase public awareness on the prevention and treatment of these and other allergic diseases as well as greater research funding and large-scale studies to reduce their growing socioeconomic burden in coming years.

    MeSH terms: Absenteeism; Presenteeism; Allergens; Efficiency; European Union; Hong Kong; Humans; Malaysia; Philippines; Pollen; Surveys and Questionnaires; Salaries and Fringe Benefits; Seasons; Singapore; Thailand; Urticaria; Vietnam; Cost Savings; Rhinitis, Allergic
  17. Jiang C, Ma B, Song S, Lai OM, Cheong LZ
    J Agric Food Chem, 2018 Jul 11;66(27):7131-7138.
    PMID: 29902005 DOI: 10.1021/acs.jafc.8b01393
    Phospholipid composition in the milk fat globule membrane (MFGM) fluctuates during the entire lactation period in order to suit the growing needs of newborn infants. The present study elucidated and relatively quantified phospholipid molecular species extracted from human milk (HM), mature human milk (MHM), and infant formulas (with or without MFGM supplementation) using hydrophilic liquid chromatography-electrospray ionization-ion trap-time of flight-mass spectrometry (HILIC-ESI-IT-TOF-MS) system. Principal component analysis was used to clarify the differences between phospholipid composition in HM, MHM, and infant formulas. HM and MHM contained high concentrations of sphingomyeline (HM: 107.61 μg/mL, MHM: 227.18 μg/mL), phosphatidylcholine (HM: 59.96 μg/mL, MHM: 50.77 μg/mL), and phosphatidylethanolamine (PE) (HM: 25.24 μg/mL, MHM: 31.76 μg/mL). Significant concentrations (<300 ng/mL) of arachidonic, eicosapentanoic, and docosahexanoic acids were found to esterify to PE in HM and MHM. Meanwhile, all infant formulas were found to contain high concentrations of phosphatidic acids indicating the possibility of degradation of the fortified MFGM either during processing or storage of the infant formulas.
  18. Razali RA, Nik Ahmad Eid NAH, Jayaraman T, Amir Hassan MA, Azlan NQ, Ismail NF, et al.
    BMC Complement Altern Med, 2018 Jun 26;18(1):197.
    PMID: 29940929 DOI: 10.1186/s12906-018-2250-5
    BACKGROUND: One of the molecular mechanisms involved in upper airway-related diseases is epithelial-to-mesenchymal transition (EMT). Olea europaea (OE) has anti-inflammatory properties and thus, great potential to prevent EMT. This study aimed to investigate the effect of OE on EMT in primary nasal human respiratory epithelial cells (RECs).

    METHODS: Respiratory epithelial cells were isolated and divided into four groups: control (untreated), treated with 0.05% OE (OE group), EMT induced with 5 ng/ml of transforming growth factor beta-1 (TGFβ1 group) and treated with 5 ng/ml TGFβ1 + 0.05% OE (TGFβ1 + OE group). The effects of OE treatment on growth kinetics, morphology and protein expression in RECs were evaluated. Immunocytochemistry analysis was performed to quantitate the total percentage of E-cadherin and vimentin expression from day 1 to day 3.

    RESULTS: There were no significant differences between untreated RECs and OE-treated RECs in terms of their morphology, growth kinetics and protein expression. Induction with TGFβ1 caused RECs to have an elongated spindle shape, a slower proliferation rate, a higher expression of vimentin and a lower expression of E-cadherin compared with the control. Cells in the TGFβ1 + OE group had similar epithelial shape to untreated group however it had no significant differences in their proliferation rate when compared to TGFβ1-induced RECs. Cells treated with TGFβ1 + OE showed significantly reduced expression of vimentin and increased expression of E-cadherin compared with the TGFβ1 group (P 

    MeSH terms: Cells, Cultured; Epithelial Cells/cytology; Humans; Nasal Mucosa/cytology; Plant Extracts/pharmacology*; Vimentin/metabolism; Olea/chemistry*; Transforming Growth Factor beta1/metabolism*; Epithelial-Mesenchymal Transition/drug effects*
  19. Mohamad NE, Yeap SK, Beh BK, Ky H, Lim KL, Ho WY, et al.
    BMC Complement Altern Med, 2018 Jun 25;18(1):195.
    PMID: 29940935 DOI: 10.1186/s12906-018-2199-4
    BACKGROUND: Coconut water has been commonly consumed as a beverage for its multiple health benefits while vinegar has been used as common seasoning and a traditional Chinese medicine. The present study investigates the potential of coconut water vinegar in promoting recovery on acetaminophen induced liver damage.

    METHODS: Mice were injected with 250 mg/kg body weight acetaminophen for 7 days and were treated with distilled water (untreated), Silybin (positive control) and coconut water vinegar (0.08 mL/kg and 2 mL/kg body weight). Level of oxidation stress and inflammation among treated and untreated mice were compared.

    RESULTS: Untreated mice oral administrated with acetaminophen were observed with elevation of serum liver profiles, liver histological changes, high level of cytochrome P450 2E1, reduced level of liver antioxidant and increased level of inflammatory related markers indicating liver damage. On the other hand, acetaminophen challenged mice treated with 14 days of coconut water vinegar were recorded with reduction of serum liver profiles, improved liver histology, restored liver antioxidant, reduction of liver inflammation and decreased level of liver cytochrome P450 2E1 in dosage dependent level.

    CONCLUSION: Coconut water vinegar has helped to attenuate acetaminophen-induced liver damage by restoring antioxidant activity and suppression of inflammation.

    MeSH terms: Acetaminophen/toxicity*; Animals; Antioxidants/pharmacology*; Antioxidants/chemistry; Cocos/chemistry*; Inflammation/metabolism; Liver/drug effects*; Liver/metabolism; Liver/pathology; Liver/chemistry; Male; Mice, Inbred BALB C; Plant Extracts/pharmacology*; Plant Extracts/chemistry; Water; Acetic Acid; Mice; Drug-Induced Liver Injury/drug therapy; Drug-Induced Liver Injury/metabolism
  20. Mazlina M, Khairani-Bejo S, Hazilawati H, Tiagarahan T, Shaqinah NN, Zamri-Saad M
    BMC Vet Res, 2018 Jun 25;14(1):203.
    PMID: 29940976 DOI: 10.1186/s12917-018-1533-x
    BACKGROUND: This study was conducted to investigate the pathological changes and distribution of B. melitensis in the urinary tract of pregnant goats following acute experimental infection. Six Jamnapari crossbred does in their third trimester of pregnancy were randomly assigned into two groups; Group 1 was uninfected control and Group 2 was inoculated conjunctival with 0.1 mL of the inoculums containing 109 cfu/mL of live B. melitensis. All does were sacrificed 30 days post-inoculation before the kidney, ureter, urinary bladder, urethra and vaginal swab were collected for isolation of B. melitensis. The same tissue samples were fixed in 10% neutral buffered formalin for hematoxylin and eosin, and immunoperoxidase staining.

    RESULTS: None of the goats showed clinical signs or gross lesions. The most consistent histopathology finding was the infiltration of mononuclear cells, chiefly the macrophages with few lymphocytes and occasionally neutrophils in all organs along the urinary tract of the infected goats of Group 2. Other histopathology findings included mild necrosis of the epithelial cells of the renal tubules, congestion and occasional haemorrhages in the various tissues. Kidneys showed the most severe lesions. Immunoperoxidase staining revealed the presence of B. melitensis within the infiltrating macrophages and the epithelium of renal tubules, ureter, urethra and urinary bladder. Most extensive distribution was observed in the urinary bladder. Brucella melitensis was successfully isolated at low concentration (3.4 × 103 cfu/g) in the various organs of the urinary tract and at high concentration (2.4 × 108 cfu/mL) in the vaginal swabs of all infected goats. Although B. melitensis was successfully isolated from the various organs of the urinary tract, it was not isolated from the urine samples that were collected from the urinary bladder at necropsy.

    CONCLUSION: This study demonstrates the presence of low concentrations of B. melitensis in the organs of urinary tract of pregnant does, resulting in mild histopathology lesions. However, B. melitensis was not isolated from the urine that was collected from the urinary bladder.

    MeSH terms: Animals; Urinary Bladder/microbiology; Urinary Bladder/pathology; Brucellosis/microbiology; Brucellosis/pathology; Brucellosis/veterinary*; Female; Goats; Kidney/microbiology; Kidney/pathology; Pregnancy; Pregnancy Complications, Infectious/microbiology; Pregnancy Complications, Infectious/pathology; Pregnancy Complications, Infectious/veterinary*; Ureter/microbiology; Ureter/pathology; Urethra/microbiology; Urethra/pathology; Urinary Tract/microbiology; Urinary Tract/pathology*; Vagina/microbiology; Vagina/pathology; Goat Diseases/microbiology*; Goat Diseases/pathology; Polymerase Chain Reaction/veterinary; Brucella melitensis*
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