Browse publications by year: 2018

  1. Kelly AM, Holdgate A, Keijzers G, Klim S, Graham CA, Craig S, et al.
    Respirology, 2018 07;23(7):681-686.
    PMID: 29394524 DOI: 10.1111/resp.13259
    BACKGROUND AND OBJECTIVE: Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is a common presentation to emergency departments (ED) but data regarding its epidemiology and outcomes are scarce. We describe the epidemiology, clinical features, treatment and outcome of patients treated for AECOPD in ED.

    METHODS: This was a planned sub-study of patients with an ED diagnosis of AECOPD identified in the Asia, Australia and New Zealand Dyspnoea in Emergency Departments (AANZDEM) study. The AANZDEM was a prospective, interrupted time series cohort study conducted in 46 ED in Australia, New Zealand, Singapore, Hong Kong and Malaysia over three 72-h periods in May, August and October 2014. Primary outcomes were patient epidemiology, clinical features, treatment and outcomes (hospital length of stay (LOS) and mortality).

    RESULTS: Forty-six ED participated. There were 415 patients with an ED primary diagnosis of AECOPD (13.6% of the overall cohort; 95% CI: 12.5-14.9%). Median age was 73 years, 60% males and 65% arrived by ambulance. Ninety-one percent had an existing COPD diagnosis. Eighty percent of patients received inhaled bronchodilators, 66% received systemic corticosteroids and 57% of those with pH < 7.30 were treated with non-invasive ventilation (NIV). Seventy-eight percent of patients were admitted to hospital, 7% to an intensive care unit. In-hospital mortality was 4% and median LOS was 4 days (95% CI: 2-7).

    CONCLUSION: Patients treated in ED for AECOPD commonly arrive by ambulance, have a high admission rate and significant in-hospital mortality. Compliance with evidence-based treatments in ED is suboptimal affording an opportunity to improve care and potentially outcomes.

    MeSH terms: Acute Disease; Adrenal Cortex Hormones/therapeutic use; Aged; Aged, 80 and over; Australia/epidemiology; Bronchodilator Agents/therapeutic use; Critical Care; Emergency Service, Hospital/statistics & numerical data*; Female; Hong Kong/epidemiology; Humans; Length of Stay; Malaysia/epidemiology; Male; Middle Aged; New Zealand/epidemiology; Patient Admission; Prospective Studies; Singapore/epidemiology; Hospital Mortality; Disease Progression; Pulmonary Disease, Chronic Obstructive/mortality; Pulmonary Disease, Chronic Obstructive/epidemiology*; Pulmonary Disease, Chronic Obstructive/therapy*; Noninvasive Ventilation
  2. Koo HC, Poh BK, Abd Talib R
    Nutrients, 2018 Jan 30;10(2).
    PMID: 29385769 DOI: 10.3390/nu10020156
    Background: The GReat-Child Trial was a quasi-experimental intervention that has emphasized whole grain as a strategy to manage childhood obesity. Methods: Two schools in Kuala Lumpur with similar demographic characteristics were assigned as intervention (IG) and control (CG). Eligibility criteria were overweight/obese children aged 9 to 11 years who had no serious co-morbidity. Children who reported consuming wholegrain foods in their 3-day diet-recall during screening were excluded. A total of 63 children (31 IG; 32 CG) completed the entire intervention program. The IG children underwent six 30-min nutrition education lessons and had school delivery of wholegrain food on a daily basis over a 12-week period. Parents of IG children attended 1-h individual diet counseling. Anthropometric outcomes including BMI-for-age z-score (BAZ), body fat percentage and waist circumference were measured at baseline [T0], post-intervention [T1] (3rd month) and follow-up [T2] (9th month). Results: IG showed significantly lower BAZ (weighted difference: -0.12; 95% CI: -0.21, -0.03; p = 0.009), body fat percentage (weighted difference: -2.6%; 95% CI: -3.7, -1.5; p < 0.001) and waist circumference (weighted difference: -2.4 cm; 95% CI: -3.8, -1.0; p = 0.001) compared to CG. IG reported significantly lower body fat percentage (weighted difference: -3.4%; 95% CI: 1.8, 5.0; p < 0.001) and waist circumference (weighted difference: -2.1 cm; 95% CI: -3.7, -0.5; p = 0.014) at T1 compared to T0. Conclusions: The GReat-Child Trial made a positive impact in managing childhood obesity. It can be incorporated into childhood obesity intervention programs that are being implemented by the policy makers.
    MeSH terms: Whole Grains*; Child; Combined Modality Therapy; Developing Countries; Feasibility Studies; Follow-Up Studies; Food Services*; Humans; Malaysia; Parents/education; Patient Education as Topic; Schools; Exercise; Cognitive Therapy*; Body Mass Index; Health Transition*; Adiposity; Overweight/diet therapy; Overweight/ethnology; Overweight/prevention & control; Overweight/therapy; Child Nutrition Sciences/education; Waist Circumference; Pediatric Obesity/diet therapy*; Pediatric Obesity/ethnology; Pediatric Obesity/prevention & control; Pediatric Obesity/therapy
  3. Abdullah NN, Daud S, Wang SM, Mahmud Z, Mohd Kornain NK, Al-Kubaisy W
    J Obstet Gynaecol, 2018 Apr;38(3):402-407.
    PMID: 29385850 DOI: 10.1080/01443615.2017.1379061
    This study aims to determine the acceptability of Human Papilloma Virus (HPV) self-sampling and the factors associated with willingness to buy HPV self-sampling kit in the future. A total of 164 women aged 28-60 years old from Obstetrics & Gynaecology clinics at a teaching hospital performed HPV self-sampling using the Digene HC2 DNA collection kit. After samples were taken, the participants were given self-administered questionnaires. The majority of the participants were Malay (93.9%), had attained tertiary education (65.2%) and were employed (70.1%). The acceptability was good. More than half of the participants felt that self-sampling was easy. Only 1.2% felt that the procedure was difficult to perform. Most reported no pain at all during the procedure (66.9%). The commonest concern was getting a good sample (90.1%). A number of Pap smears were found to be significantly associated with the willingness to buy the HPV self-sampling kit. HPV self-sampling has the potential to be included in the cervical cancer screening programme. Impact Statement What is already known on this subject: HPV self-sampling is acceptable in some developed and developing countries. It is acceptable because it was easy to perform with very minimal pain or discomfort. Studies on the acceptance of self-screening are needed to plan a policy on self-sampling in the future. What the results of this study add: Our study adds new findings to the body of knowledge on self-sampling in the local population. We found that more women are willing to do the self-sampling at the clinic rather than at home. Although more than 90% expressed willingness to do self-sampling in the future, only 70% of them were willing to purchase the kit. Cost is a potential barrier to women who have the interest to perform the self-sampling. Given the global economic challenges, cost is inevitably an important predictor that we have to consider. What the implications are of these findings for clinical practice and/or further research: Future research should examine women from the rural areas and those who are resilient to Pap smear screening. In clinical practice, clinicians should acknowledge that cost is a potential barrier for women who are willing to do self-sampling. Self-sampling could be an option for women with no financial constraint to buy the kit. However, clinicians should counsel women so that they can make an informed choice in determining their screening method.
    MeSH terms: Adult; Uterine Cervical Neoplasms/diagnosis; Uterine Cervical Neoplasms/virology; Cross-Sectional Studies; Female; Humans; Middle Aged; Surveys and Questionnaires; Self Care/methods*; Specimen Handling/methods*; Vaginal Smears/methods; Patient Satisfaction; Papillomaviridae/isolation & purification*; Human papillomavirus 18; Human papillomavirus 16; Early Detection of Cancer/methods; Papanicolaou Test
  4. Park S, Buranakitjaroen P, Chen CH, Chia YC, Divinagracia R, Hoshide S, et al.
    J Hum Hypertens, 2018 Apr;32(4):249-258.
    PMID: 29386668 DOI: 10.1038/s41371-017-0025-y
    Hypertension is the leading cause of mortality throughout Asia. Home blood pressure monitoring has the potential to improve hypertension control and is a useful adjunct to conventional office blood pressure measurements due to its diagnostic accuracy and prognostic value in predicting cardiovascular outcomes. At present, there are no region-specific guidelines addressing the use of home blood pressure monitoring in Asia. Therefore, an expert panel was convened to address the use of home blood pressure monitoring and develop key recommendations to help guide clinical practice throughout the Asia region. The resulting recommendations support the use of home blood pressure monitoring with a validated device as an accurate adjunct for diagnosing hypertension and predicting cardiovascular outcome. Diagnosis and treatment of hypertension should still be guided by conventional office/clinic blood pressure measurements. The expert panel encourages the incorporation of home blood pressure monitoring into local clinical guidelines and offers practical recommendations to ensure continuity of care where a validated home blood pressure device is not available.
    MeSH terms: Asia; Humans; Hypertension/diagnosis; Blood Pressure Monitoring, Ambulatory*
  5. Ramanathan N, Tan E, Loh LJ, Soh BS, Yap WN
    Nutr Metab (Lond), 2018;15:6.
    PMID: 29387138 DOI: 10.1186/s12986-018-0244-4
    Ageing is a nonmodifiable risk factor that is linked to increased likelihood of cardiovascular morbidities. Whilst many pharmacological interventions currently exist to treat many of these disorders such as statins for hypercholesterolemia or beta-blockers for hypertension, the elderly appear to present a greater likelihood of suffering non-related side effects such as increased risk of developing new onset type 2 diabetes (NODM). In some cases, lower efficacy in the elderly have also been reported. Alternative forms of treatment have been sought to address these issues, and there has been a growing interest in looking at herbal remedies or plant-based natural compounds. Oxidative stress and inflammation are implicated in the manifestation of ageing-related cardiovascular disease. Thus, it is natural that a compound that possesses both antioxidative and anti-inflammatory bioactivities would be considered. This review article examines the potential of tocotrienols, a class of Vitamin E compounds with proven superior antioxidative and anti-inflammatory activity compared to tocopherols (the other class of Vitamin E compounds), in ameliorating ageing-related cardiovascular diseases and its associated morbidities. In particular, the potential of tocotrienols in improving inflammaging, dyslipidemia and mitochondrial dysfunction in ageing-related cardiovascular diseases are discussed.
  6. Zyoud SH, Sweileh WM, Awang R, Al-Jabi SW
    PMID: 29387147 DOI: 10.1186/s13033-018-0182-6
    Background: Social media, defined as interactive Web applications, have been on the rise globally, particularly among adults. The objective of this study was to investigate the trend of the literature related to the most used social network worldwide (i.e. Facebook, Twitter, LinkedIn, Snapchat, and Instagram) in the field of psychology. Specifically, this study will assess the growth in publications, citation analysis, international collaboration, author productivity, emerging topics and the mapping of frequent terms in publications pertaining to social media in the field of psychology.

    Methods: Publications related to social media in the field of psychology published between 2004 and 2014 were obtained from the Web of Science. The records extracted were analysed for bibliometric characteristics such as the growth in publications, citation analysis, international collaboration, emerging topics and the mapping of frequent terms in publications pertaining to social media in the field of psychology. VOSviewer v.1.6.5 was used to construct scientific maps.

    Results: Overall, 959 publications were retrieved during the period between 2004 and 2015. The number of research publications in social media in the field of psychology showed a steady upward growth. Publications from the USA accounted for 57.14% of the total publications and the highest h-index (48).The most common document type was research articles (873; 91.03%). Over 99.06% of the publications were published in English. Computers in Human Behavior was the most prolific journal. The University of Wisconsin-Madison ranked first in terms of the total publications (n = 39). A visualisation analysis showed that personality psychology, experimental psychology, psychological risk factors, and developmental psychology were continual concerns of the research.

    Conclusions: This is the first study reporting the global trends in the research related to social media in the psychology field. Based on the raw data from the Web of Science, publication characteristics such as quality and quantity were assessed using bibliometric techniques over 12 years. The USA and its institutions play a dominant role in this topic. The most preferred topics related to social media in psychology are personality psychology, experimental psychology, psychological risk factors, and developmental psychology.
    MeSH terms: Psychology*; Bibliometrics*; Social Media*
  7. Mohd Ariff NA, Mazlan MZ, Mat Hassan ME, Seevaunnamtum PA, Wan Muhd Shukeri WF, Nik Mohamad NA, et al.
    Respir Med Case Rep, 2018;23:93-95.
    PMID: 29387523 DOI: 10.1016/j.rmcr.2018.01.001
    Introduction: Bronchoscopy is a commonly used procedure in the context of aspiration in the Intensive Care Unit setting. Despite its ability to remove mucus plug and undigested gastric contents, aspiration of gastric content into the trachea is one of the most feared complications among anesthesiologist.

    Discussion: The scenario is made worst if the aspiration causes acute hypoxemic respiratory failure immediately post intubation. However, in the event of desaturation, the quick decision to proceed with bronchoscopy is a challenging task to the anesthesiologist without knowing the causes.

    Case presentation: We present a case of a 12-year-old boy who had a difficult-to-ventilate scenario post transferring and immediately connected to ventilator in operation theatre (OT) from portable ventilator from the emergency department. She was successfully managed by bronchoscopy.

    Conclusion: Special attention should be given to the difficult-to-ventilate scenario post intubation of traumatic brain injury patient prior to operation. Prompt diagnosis and bronchoscope-assisted removal of foreign body was found to be a successful to reduce morbidity and mortality.

    MeSH terms: Attention; Bronchoscopy; Child; Emergency Service, Hospital; Female; Foreign Bodies; Humans; Intensive Care Units; Intubation; Male; Mucus; Operating Rooms; Ventilators, Mechanical; Respiratory Insufficiency; Trachea; Bronchoscopes; Brain Injuries, Traumatic; Anesthesiologists
  8. Joel ES, Maxwell O, Adewoyin OO, Ehi-Eromosele CO, Embong Z, Oyawoye F
    MethodsX, 2018;5:8-19.
    PMID: 29387568 DOI: 10.1016/j.mex.2017.12.002
    In this study, we evaluated the activity concentration of natural radionuclides (226Ra, 232Th and 40K) for fifteen (15) different brands of tile samples used for building purposes in Nigeria. The tile samples were analyzed using High purity Germanium gamma detector. The mean activity concentrations of 226Ra, 232Th, and 40K were observed to be 61.1 ± 5.5 Bq/kg, 70.2 ± 6.08 Bq/kg and 514.7 ± 59.8 Bq/kg respectively. Various hazard indices such as absorbed dose rate, external and internal hazard index, annual effective dose rate, Gamma activity Index (Iγ) and Alpha Index (Iα) were calculated. The obtained results showed that the mean radium equivalent activity (Raeq), the absorbed dose rate (D), external and internal hazard index, the annual effective dose (AEDR) equivalent, Gamma activity Index (Iγ) and Alpha Index (Iα) were: 204.42 Bq/kg, 177.61 nGyh-1, 0.55, 0.77, 0.96 mSvyr-1, 0.74 and 0.32 respectively. The average value of radium equivalent obtained in this study is less than that of the recommended value of 370 Bq/kg but the average values of the other radiological hazards for some samples are found to be slightly above international recommended values except Hex, Hin and AEDE which are within the international reference value of unity. The measured concentrations of these radioactive materials were correlated with other previous result obtained from similar tile materials used in other countries and found to be in good agreement with the international standard, however, the tiles are recommended for decoration purposes in Nigeria.
  9. Subha ST, Bakri MA, Salleh H, Doi M, Nordin AJ
    Iran J Otorhinolaryngol, 2018 Jan;30(96):49-54.
    PMID: 29387664
    Introduction: Papillary thyroid carcinoma (PTC) constitutes 75-85% of all thyroid cancers. PTC usually presents as a subtle, commonly slow-growing, painless thyroid mass or a solitary nodule in the neck. This presentation of a cystic neck lump, without the presence of a thyroid nodule, may imitate the course of a benign disease, thus delaying diagnosis and proper treatment.

    Case Report: Three cases that had been initially presented as a cystic neck lesion in which a benign etiology was considered primarily were compiled in this study. PTC was only diagnosed after surgical excision of these cystic neck lesions in the first two cases, and after performing fine needle aspiration cytology (FNAC) and an 18fluorine-fluorodeoxyglucose positron emission tomography computed tomography (18F-FDG-PET CT) scan in the latter case.

    Conclusion: PTC can sometimes present as a cystic neck mass; a presentation which is usually related to a benign lesion. This case series emphasizes that patients who appear to have a solitary cystic neck mass must be treated with a high index of clinical suspicion. Although not a first-line imaging modality, 18F-FDG-PET can be extremely useful in assessing patients with a cystic neck lesion, where diagnosis is still uncertain after standard investigations such as ultrasonography and FNAC have been performed.

    MeSH terms: Carcinoma; Carcinoma, Papillary; Humans; Thyroid Neoplasms; Ultrasonography; Thyroid Nodule; Fluorodeoxyglucose F18; Biopsy, Fine-Needle; Positron-Emission Tomography; Positron Emission Tomography Computed Tomography
  10. Ibrahim MI, Jusoh YR, Adam NN, Mohamad I
    Iran J Otorhinolaryngol, 2018 Jan;30(96):65-68.
    PMID: 29387667
    Introduction: Primary squamous cell carcinoma (SCC) of the thyroid gland is one of the rarest types of all reported thyroid malignancies worldwide. It is very aggressive in nature and carries a poor prognosis. The surgical resection with adjuvant radiotherapy and chemotherapy is the most recommended treatment despite its poor reported outcome.

    Case Report: A 74-year-old woman presented with a rapidly progressive neck swelling, with hoarseness and compressive symptoms. Physical examination revealed a multilobulated firm thyroid mass with unilateral vocal cord palsy. Histopathological findings confirmed the diagnosis of SCC while radiological investigations and panendoscopy findings ruled out the possibility of other primary tumors. A surgical intervention was performed; however, the patient eventually succumbed to death prior to undergoing an oncological treatment.

    Conclusion: With no standard consensus to guide the management plan, SCC of the thyroid gland presents a great challenge for the managing team to come up with the best treatment option, due to its unfavorable rate of survival.

    MeSH terms: Aged; Carcinoma, Squamous Cell; Female; Hoarseness; Humans; Physical Examination; Prognosis; Thyroid Diseases; Thyroid Neoplasms; Vocal Cord Paralysis; Radiotherapy, Adjuvant; Consensus
  11. Tajima T, Malim TP, Inoue E
    Primates, 2018 Mar;59(2):127-133.
    PMID: 29387973 DOI: 10.1007/s10329-017-0648-1
    The reproductive success of male primates is not always associated with dominance status. For example, even though male orangutans exhibit intra-sexual dimorphism and clear dominance relationships exist among males, previous studies have reported that both morphs are able to sire offspring. The present study aimed to compare the reproductive success of two male morphs, and to determine whether unflanged males sired offspring in a free-ranging population of Bornean orangutans, using 12 microsatellite loci to determine the paternity of eight infants. A single flanged male sired most of the offspring from parous females, and an unflanged male sired a firstborn. This is consistent with our observation that the dominant flanged male showed little interest in nulliparous females, whereas the unflanged males frequently mated with them. This suggests that the dominant flanged male monopolizes the fertilization of parous females and that unflanged males take advantage of any mating opportunities that arise in the absence of the flanged male, even though the conception probability of nulliparous females is relatively low.
    MeSH terms: Agonistic Behavior; Animals; DNA/genetics; DNA/isolation & purification; Female; Genotype; Male; Paternity; Pongo pygmaeus/classification; Pongo pygmaeus/genetics; Pongo pygmaeus/physiology*; Reproduction*; Sexual Behavior, Animal*; Sex Characteristics; Social Dominance; Microsatellite Repeats/genetics
  12. Kanagalingam J, Wahid MIA, Lin JC, Cupino NA, Liu E, Kang JH, et al.
    Support Care Cancer, 2018 Jul;26(7):2191-2200.
    PMID: 29387994 DOI: 10.1007/s00520-018-4050-3
    PURPOSE: This descriptive cross-sectional survey aims to assess the level of concordance between the perspectives of oncologists and those of patients regarding oral mucositis (OM) symptoms, and the impact of OM on various aspects of daily living and concurrent cancer management.

    METHODS: Oncologists involved in OM management (n = 105), and patients who developed OM during cancer treatment (n = 175), were recruited from seven Asian countries. Oncologists completed a face-to-face, quantitative interview; patients completed a face-to-face interview, and a self-reported questionnaire.

    RESULTS: Oncologists and patients ranked treatment-induced OM among the three most important toxicities of cancer therapy requiring intervention. The most frequent OM symptoms reported by patients were oral ulcers (74%), dry mouth (73%), and difficulty swallowing (62%). Oncologists expected mild OM symptoms to last slightly longer than 1 week, whereas patients reported mild symptoms for more than 2 weeks. In mild-to-moderate OM, oncologists underestimated patients' pain experience. Overall, only 45% of oncologists said they would initiate OM prophylaxis when cancer therapy started. Of the 87% of patients who said they used their prescribed medications, only 16% reported using prophylactically prescribed medication. While oncologists' concerns related to the delays and interruptions of cancer treatment, patients tended to focus on the effects of OM on eating, drinking, and talking.

    CONCLUSIONS: Oncologists' and patients' perceptions about treatment-induced OM differ. To overcome discordant perspectives, there is a need to raise general awareness and improve proactive management of OM. As noted in recent guidelines, supportive cancer care is critical for ensuring optimal therapy and for improving the patient's experience.

  13. Shaukat Ali R, Gnanasan S, Farooqui M
    Complement Ther Clin Pract, 2018 Feb;30:109-115.
    PMID: 29389469 DOI: 10.1016/j.ctcp.2017.12.009
    OBJECTIVES: This study aims to explore pregnant and postpartum women's understanding of the meaning of traditional and complementary medicine (T&CM) and how that may affect their T&CM use.

    METHODS: A cross-sectional study was conducted using self-administered questionnaires. Data collected from 374 women were analysed and represented via descriptive statistics.

    RESULTS: Out of the 374 participants, 285 (76.2%) reported using at least one type of T&CM to conceive, during pregnancy or in the postpartum period. The majority of the participants identified that T&CM is all about plants or natural products without chemicals or drugs (n = 267, 71.4%, p 

    MeSH terms: Adolescent; Adult; Attitude; Cross-Sectional Studies; Female; Fertility*; Humans; Health Knowledge, Attitudes, Practice; Malaysia; Medicine, Traditional; Middle Aged; Patient Acceptance of Health Care*; Pregnancy; Prenatal Care*; Surveys and Questionnaires; Women; Postpartum Period*; Young Adult
  14. Nik Nabil WN, Lim RJ, Chan SY, Lai NM, Liew AC
    Complement Ther Clin Pract, 2018 Feb;30:6-13.
    PMID: 29389481 DOI: 10.1016/j.ctcp.2017.10.004
    BACKGROUND: Over 80% of head and neck cancer patients suffer from radiotherapy-induced xerostomia (dry mouth). Xerostomia affects cancer patients' quality of life, and xerostomia sometimes persists throughout the patients' lifetime. This review aimed to evaluate the effectiveness and safety of Chinese herbs in relieving radiotherapy induced xerostomia.

    METHODS: Systematic searches were conducted on 6 databases (English and Chinese). Studies published up till May 2017 were considered for inclusion.

    RESULTS: A final 14 RCTs (total 994 head and neck cancer patients undergoing radiotherapy) compared Chinese herbs with no herbs, were included in analysis. Very low to moderate quality of evidence found Chinese herbal treatment may relief radiotherapy-induced xerostomia and other related complications (such as oral mucositis and loss of appetite) in head and neck cancer patients.

    CONCLUSION: There is limited evidence that Chinese herbal treatment may relief radiotherapy-induced xerostomia and other related complications in head and neck cancer patients.

    MeSH terms: Drugs, Chinese Herbal/pharmacology*; Drugs, Chinese Herbal/therapeutic use; Female; Head and Neck Neoplasms/radiotherapy*; Humans; Male; Mouth/drug effects*; Mouth/pathology; Quality of Life*; Saliva; Xerostomia/drug therapy; Xerostomia/etiology*
  15. Pramai P, Abdul Hamid NA, Mediani A, Maulidiani M, Abas F, Jiamyangyuen S
    J Food Drug Anal, 2018 01;26(1):47-57.
    PMID: 29389588 DOI: 10.1016/j.jfda.2016.11.023
    In an attempt to profile the metabolites of three different varieties of germinated rice, specifically black (GBR), red, and white rice, a 1H-nuclear-magnetic-resonance-based metabolomics approach was conducted. Multivariate data analysis was applied to discriminate between the three different varieties using a partial least squares discriminant analysis (PLS-DA) model. The PLS model was used to evaluate the relationship between chemicals and biological activities of germinated rice. The PLS-DA score plot exhibited a noticeable separation between the three rice varieties into three clusters by PC1 and PC2. The PLS model indicated that α-linolenic acid, γ-oryzanol, α-tocopherol, γ-aminobutyric acid, 3-hydroxybutyric acid, fumaric acid, fatty acids, threonine, tryptophan, and vanillic acid were significantly correlated with the higher bioactivities demonstrated by GBR that was extracted in 100% ethanol. Subsequently, the proposed biosynthetic pathway analysis revealed that the increased quantities of secondary metabolites found in GBR may contribute to its nutritional value and health benefits.
    MeSH terms: Magnetic Resonance Spectroscopy; Oryza/growth & development; Oryza/metabolism; Oryza/chemistry*; Germination; Metabolic Networks and Pathways; Metabolome*; Glycoside Hydrolase Inhibitors/pharmacology*; Glycoside Hydrolase Inhibitors/chemistry
  16. Lee YY, Tang TK, Phuah ET, Karim NAA, Alitheen NBM, Tan CP, et al.
    Food Res Int, 2018 01;103:200-207.
    PMID: 29389606 DOI: 10.1016/j.foodres.2017.10.022
    Medium-and-Long Chain Triacylglycerol (MLCT) is a type of structured lipid that is made up of medium chain, MCFA (C8-C12) and long chain, LCFA (C16-C22) fatty acid. Studies claimed that consumption of MLCT has the potential in reducing visceral fat accumulation as compared to long chain triacylglycerol, LCT. This is mainly attributed to the rapid metabolism of MCFA as compared to LCFA. Our study was designed to compare the anti-obesity effects of a enzymatically interesterified MLCT (E-MLCT) with physical blend of palm kernel and palm oil (B-PKOPO) having similar fatty acid composition and a commercial MLCT (C-MLCT) made of rapeseed/soybean oil on Diet Induced Obesity (DIO) C57BL/6J mice for a period of four months in low fat, LF (7%) and high fat, HF (30%) diet. The main aim was to determine if the anti-obesity effect of MLCT was contributed solely by its triacylglycerol structure alone or its fatty acid composition or both. Out of the three types of MLCT, mice fed with Low Fat, LF (7%) E-MLCT had significantly (P<0.05) lower body weight gain (by ~30%), body fat accumulation (by ~37%) and hormone leptin level as compared to both the LF B-PKOPO and LF C-MLCT. Histological examination further revealed that dietary intake of E-MLCT inhibited hepatic lipid accumulation. Besides, analysis of serum profile also demonstrated that consumption of E-MLCT was better in regulating blood glucose compared to B-PKOPO and C-MLCT. Nevertheless, both B-PKO-PO and E-MLCT which contained higher level of myristic acid was found to be hypercholesterolemic compared to C-MLCT. In summary, our finding showed that triacylglycerol structure, fatty acid composition and fat dosage play a pivotal role in regulating visceral fat accumulation. Consumption of E-MLCT in low fat diet led to a significantly lesser body fat accumulation. It was postulated that the MLM/MLL/LMM/MML/LLM types of triacylglycerol and C8-C12 medium chain fatty acids were the main factors that contributed to the visceral fat suppressing effect of MLCT. Despite being able to reduce body fat, the so called healthful functional oil E-MLCT when taken in high amount do resulted in fat accumulation. In summary, E-MLCT when taken in moderation can be used to manage obesity issue. However, consumption of E-MLCT may lead to higher total cholesterol and LDL level.
    MeSH terms: Adipose Tissue; Animals; Blood Glucose; Cholesterol; Mice, Inbred C57BL; Obesity; Soybean Oil; Triglycerides; Weight Gain; Diet, Fat-Restricted; Myristic Acid; Leptin; Brassica rapa; Intra-Abdominal Fat; Mice
  17. Samsudin H, Auras R, Mishra D, Dolan K, Burgess G, Rubino M, et al.
    Food Res Int, 2018 01;103:515-528.
    PMID: 29389642 DOI: 10.1016/j.foodres.2017.09.021
    Migration studies of chemicals from contact materials have been widely conducted due to their importance in determining the safety and shelf life of a food product in their packages. The US Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA) require this safety assessment for food contact materials. So, migration experiments are theoretically designed and experimentally conducted to obtain data that can be used to assess the kinetics of chemical release. In this work, a parameter estimation approach was used to review and to determine the mass transfer partition and diffusion coefficients governing the migration process of eight antioxidants from poly(lactic acid), PLA, based films into water/ethanol solutions at temperatures between 20 and 50°C. Scaled sensitivity coefficients were calculated to assess simultaneously estimation of a number of mass transfer parameters. An optimal experimental design approach was performed to show the importance of properly designing a migration experiment. Additional parameters also provide better insights on migration of the antioxidants. For example, the partition coefficients could be better estimated using data from the early part of the experiment instead at the end. Experiments could be conducted for shorter periods of time saving time and resources. Diffusion coefficients of the eight antioxidants from PLA films were between 0.2 and 19×10-14m2/s at ~40°C. The use of parameter estimation approach provided additional and useful insights about the migration of antioxidants from PLA films.
    MeSH terms: Ethanol; Antioxidants; Drug Packaging; Kinetics; Polyesters; Research Design; Temperature; United States; United States Food and Drug Administration; Food Safety
  18. Muhammed D, Anisi MH, Zareei M, Vargas-Rosales C, Khan A
    Sensors (Basel), 2018 Feb 01;18(2).
    PMID: 29389874 DOI: 10.3390/s18020425
    Exploring and monitoring the underwater world using underwater sensors is drawing a lot of attention these days. In this field cooperation between acoustic sensor nodes has been a critical problem due to the challenging features such as acoustic channel failure (sound signal), long propagation delay of acoustic signal, limited bandwidth and loss of connectivity. There are several proposed methods to improve cooperation between the nodes by incorporating information/game theory in the node's cooperation. However, there is a need to classify the existing works and demonstrate their performance in addressing the cooperation issue. In this paper, we have conducted a review to investigate various factors affecting cooperation in underwater acoustic sensor networks. We study various cooperation techniques used for underwater acoustic sensor networks from different perspectives, with a concentration on communication reliability, energy consumption, and security and present a taxonomy for underwater cooperation. Moreover, we further review how the game theory can be applied to make the nodes cooperate with each other. We further analyze different cooperative game methods, where their performance on different metrics is compared. Finally, open issues and future research direction in underwater acoustic sensor networks are highlighted.
    MeSH terms: Acoustics; Attention; Game Theory; Information Theory; Sound; Reproducibility of Results; Benchmarking
  19. Tai ELM, Kueh YC, Wan Hitam WH, Wong TY, Shatriah I
    PLoS One, 2018;13(2):e0191434.
    PMID: 29389952 DOI: 10.1371/journal.pone.0191434
    PURPOSE: Childhood obesity is associated with adult cardiometabolic disease. We postulate that the underlying microvascular dysfunction begins in childhood. We thus aimed to compare retinal vascular parameters between obese and non-obese children.

    METHODS: This was a cross-sectional study involving 166 children aged 6 to 12 years old in Malaysia. Ocular examination, biometry, retinal photography, blood pressure and body mass index measurement were performed. Participants were divided into two groups; obese and non-obese. Retinal vascular parameters were measured using validated software.

    RESULTS: Mean age was 9.58 years. Approximately 51.2% were obese. Obese children had significantly narrower retinal arteriolar caliber (F(1,159) = 6.862, p = 0.010), lower arteriovenous ratio (F(1,159) = 17.412, p < 0.001), higher venular fractal dimension (F(1,159) = 4.313, p = 0.039) and higher venular curvature tortuosity (F(1,158) = 5.166, p = 0.024) than non-obese children, after adjustment for age, gender, blood pressure and axial length.

    CONCLUSIONS: Obese children have abnormal retinal vascular geometry. These findings suggest that childhood obesity is characterized by early microvascular abnormalities that precede development of overt disease. Further research is warranted to determine if these parameters represent viable biomarkers for risk stratification in obesity.

    MeSH terms: Child; Cross-Sectional Studies; Female; Humans; Male; Obesity/pathology*; Prospective Studies; Retinal Vessels/anatomy & histology*; Retinal Vessels/pathology; Case-Control Studies
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