Browse publications by year: 2018

  1. Osman WNW, Mohamed S
    Phytother Res, 2018 Oct;32(10):2078-2085.
    PMID: 29993148 DOI: 10.1002/ptr.6151
    The antifatigue properties of Morinda elliptica (ME) leaf were compared with Morinda citrifolia (MC) leaf extracts. Sixty Balb/C mice were administered (N = 10): control water, standardized green tea extract (positive control 200 mg/kg body weight [BW]), either 200 or 400 mg MC/kg BW, or either 200 or 400 mg ME/kg BW). The mice performances, biochemical, and mRNA expressions were evaluated. After 6 weeks, the weight-loaded swimming time to exhaustion in the mice consuming 400 mg MC/kg, were almost five times longer than the control mice. The gene expressions analysis suggested the extracts enhanced performance by improving lipid catabolism, carbohydrate metabolism, electron transport, antioxidant responses, energy production, and tissue glycogen stores. The MC and ME extracts enhanced stamina by reducing blood lactate and blood urea nitrogen levels, increasing liver and muscle glycogen reserve through augmenting the glucose metabolism (glucose transporter type 4 and pyruvate dehydrogenase kinase 4), lipid catabolism (acyl-Coenzyme A dehydrogenases and fatty acid translocase), antioxidant (superoxide dismutase 2) defence responses, electron transport (COX4I2), and energy production (PGC1α, NRF1, NRF2, cytochrome C electron transport, mitochondrial transcription factor A, UCP1, and UCP3) biomarkers. The MC (containing scopoletin and epicatechin) was better than ME (containing only scopoletin) or green tea (containing epicatechin and GT catechins) for alleviating fatigue.
    MeSH terms: Animals; Antioxidants/metabolism; Fatigue/drug therapy*; Female; Glycogen/metabolism*; Liver/metabolism; Mice, Inbred BALB C; Plant Extracts/pharmacology*; Tea; Biomarkers/metabolism; Muscle, Skeletal/metabolism; Plant Leaves/chemistry; Morinda/chemistry*; Carbohydrate Metabolism*; Lipid Metabolism*; Mice
  2. Lim HW
    Clin Linguist Phon, 2018;32(10):889-912.
    PMID: 29993293 DOI: 10.1080/02699206.2018.1459852
    Child multilingual phonological errors are under-explored. Cross-linguistic studies suggest monolingual children make phonological errors that are subject to effects of language universality and ambient language characteristics. Bilingual Chinese children were observed to use not only typical, but also atypical phonological errors compared to monolingual peers acquiring similar languages. Atypical errors are a result of specific bilingual pair effects. Close-language-relatedness (Cantonese-Mandarin) is claimed to be responsible for the nonexistence of atypical errors in both languages, whilst distant-language-relatedness (Cantonese-English) is observed to cause atypical errors in both languages. The present novel cross-sectional study investigated phonological acquisition in three typologically distant languages: English-Mandarin-Malay by 64 multilingual Chinese children aged 2½-4½. The present research aimed to explore if multilingual Chinese children exhibit phonological errors which commensurate to that of monolingual and bilingual Chinese children acquiring similar languages as described in the literature. The single-word phonological test results revealed that the multilinguals exhibited typical and atypical phonological patterns which largely commensurate with the monolinguals and bilinguals. Similar to bilingual children, the multilingual children showed more atypical errors in English than in Mandarin, demonstrating effects of individual language irrespective of potential interaction with additional languages. The present result did not fully support the link between closeness in typology of languages and the absence of atypical errors. Rare atypical errors were found in Mandarin and Malay, two typologically different languages, and both were also interacting with English, another typologically different language. The present findings provided useful preliminary multilingual speech norms for the use of speech therapists.
    MeSH terms: Child; Child Language*; Child, Preschool; China/ethnology; Cross-Sectional Studies; Female; Humans; Malaysia; Male; Phonetics*; Multilingualism*
  3. Lee SZ, Halim AS, Wan Sulaiman WA, Mat Saad AZ
    Ann Plast Surg, 2018 09;81(3):295-301.
    PMID: 29994880 DOI: 10.1097/SAP.0000000000001565
    INTRODUCTION: The modified Meek micrografting technique has been used in the treatment of severely burned patients and a number of articles have examined the use of the modified Meek technique in adults and in mixed-age groups. However, there is a paucity of research pertaining to the outcome in the pediatric age group. The aim of this study is to present our favorable outcome in pediatric major burns using the modified Meek technique.

    METHODS: A retrospective review of burn cases in Hospital Universiti Sains Malaysia from 2010 to 2015 was conducted. Cases of major burns among pediatric patients grafted using the Meek technique were examined.

    RESULTS: Twelve patients were grafted using the Meek technique. Ten (91.7%) patients were male, whereas 2 (8.3%) were female. The average age of patients was 6 years (range, 2-11 years). The average total body surface area was 35.4% (range, 15%-75%). Most burn mechanisms were due to flame injury (66.7%) as compared with scalds injury (16.7%) and chemical injury (16.7%). There was no mortality. All patients were completely grafted with a good donor site scar. The average graft take rate was 82.3%, although 8 cases had positive tissue cultures from the Meek-grafted areas. The average follow-up duration was 3.6 years (range, 1.1-6.7 years). Only 1 case developed contracture over minor joint.

    CONCLUSIONS: The Meek technique is useful when there is a paucity of donor site in the pediatric group. The graft take is good, contracture formation is low, and this technique is cost-effective.

    MeSH terms: Burns/surgery*; Child; Child, Preschool; Female; Follow-Up Studies; Humans; Male; Retrospective Studies; Skin Transplantation/methods*; Treatment Outcome
  4. Gan HM, Austin C, Linton S
    Mar Biotechnol (NY), 2018 Oct;20(5):654-665.
    PMID: 29995174 DOI: 10.1007/s10126-018-9836-2
    The Christmas Island red crab, Gecarcoidea natalis, is an herbivorous land crab that consumes mostly fallen leaf litter. In order to subsist, G. natalis would need to have developed specialised digestive enzymes capable of supplying significant amounts of metabolisable sugars from this diet. To gain insights into the carbohydrate metabolism of G. natalis, a transcriptome assembly was performed, with a specific focus on identifying transcripts coding for carbohydrate active enzyme (CAZy) using in silico approaches. Transcriptome sequencing of the midgut gland identified 70 CAZy-coding transcripts with varying expression values. At least three newly discovered putative GH9 endo-β-1,4-glucanase ("classic cellulase") transcripts were highly expressed in the midgut gland in addition to the previously characterised GH9 and GH16 (β-1,3-glucanase) transcripts, and underscoring the utility of whole transcriptome in uncovering new CAZy-coding transcripts. A highly expressed transcript coding for GH5_10 previously missed by conventional screening of cellulase activity was inferred to be a novel endo-β-1,4-mannase in G. natalis with in silico support from homology modelling and amino acid alignment with other functionally validated GH5_10 proteins. Maximum likelihood tree reconstruction of the GH5_10 proteins demonstrates the phylogenetic affiliation of the G. natalis GH5_10 transcript to that of other decapods, supporting endogenous expression. Surprisingly, crustacean-derived GH5_10 transcripts were near absent in the current CAZy database and yet mining of the transcriptome shotgun assembly (TSA) recovered more than 100 crustacean GH5_10s in addition to several other biotechnological relevant CAZys, underscoring the unappreciated potential of the TSA database as a valuable resource for crustacean CAZys.
    MeSH terms: Amino Acids; Animals; Australia; Carbohydrates; Cellulase; Computer Simulation; Brachyura; Diet; Phylogeny; Seafood; Plant Leaves; Carbohydrate Metabolism; Transcriptome
  5. Emsley R, Ahokas A, Suarez A, Marinescu D, Dóci I, Lehtmets A, et al.
    J Clin Psychiatry, 2018 07 03;79(4).
    PMID: 29995359 DOI: 10.4088/JCP.17m11741
    OBJECTIVE: The present placebo-controlled study evaluated the efficacy and safety of 8 weeks of treatment with tianeptine 25-50 mg/d in elderly patients suffering from major depressive disorder (MDD) according to DSM-IV-TR. Escitalopram 5-10 mg/d was used as an active comparator.

    METHODS: Elderly outpatients aged at least 65 years with a primary diagnosis of moderate to severe episode of recurrent MDD were recruited by psychiatrists in 44 clinical centers in 10 countries from October 2013 to January 2016. Patients were randomly assigned to receive tianeptine (n = 105), placebo (n = 107), or escitalopram (n = 99) for 8 weeks. The primary outcome measure was the 17-item Hamilton Depression Rating Scale (HDRS₁₇) total score.

    RESULTS: Tianeptine improved depressive symptoms, as evaluated by the HDRS₁₇ total score in terms of absolute change from baseline (week 0) to week 8 (placebo-tianeptine difference [SE] of 3.84 [0.85] points, P < .001, using a last-observation-carried-forward approach) and response to treatment (tianeptine: 46.7%; placebo: 34.0%, estimate [SE] = 12.70% [6.70], P = .06). A sensitivity analysis using a mixed model for repeated measures confirmed the main results on HDRS total s​core. The placebo-tianeptine difference (SE) was 0.66 (0.15) for Clinical Global Impressions-Severity of Illness (95% CI, 0.37 to 0.96; P < .001) and 0.57 (0.14) for Clinical Global Impressions- Improvement (95% CI, 0.30 to 0.83; P < .001). Positive results were also obtained with the active control escitalopram (HDRS₁₇ total score placebo-escitalopram difference of 4.09 ± 0.86 points, P < .001), therefore validating the sensitivity of the studied population. Tianeptine was well tolerated, with only minimal differences in tolerability from placebo.

    CONCLUSIONS: The present study provides robust evidence that an 8-week treatment period with tianeptine 25-50 mg is efficacious and well tolerated in depressed patients aged 65 years or older.

    TRIAL REGISTRATION: EudraCT identifier: 2012-005612-26​.

    MeSH terms: Aged; Aged, 80 and over; Antidepressive Agents, Tricyclic/adverse effects; Antidepressive Agents, Tricyclic/therapeutic use; Depressive Disorder, Major/drug therapy*; Double-Blind Method; Female; Humans; Male; Recurrence; Thiazepines/adverse effects; Thiazepines/therapeutic use*; Citalopram/adverse effects; Citalopram/therapeutic use*; Treatment Outcome; Antidepressive Agents, Second-Generation/adverse effects; Antidepressive Agents, Second-Generation/therapeutic use
  6. Ahmad S, Zaib S, Jalil S, Shafiq M, Ahmad M, Sultan S, et al.
    Bioorg Chem, 2018 10;80:498-510.
    PMID: 29996111 DOI: 10.1016/j.bioorg.2018.04.012
    In this research work, we report the synthesis and biological evaluation of two new series of 1-benzyl-4-(benzylidenehydrazono)-3,4-dihydro-1H-benzo[c] [1,2]thiazine 2,2-dioxides and 1-benzyl-4-((1-phenylethylidene)hydrazono)-3,4-dihydro-1H-benzo[c][1,2]thiazine 2,2-dioxides. The synthetic plan involves the mesylation of methyl anthranilate with subsequent N-benzylation of the product. The methyl 2-(N-benzylmethylsulfonamido)benzoate was subjected to cyclization reaction in the presence of sodium hydride to obtain 1-benzyl-1H-benzo[c][1,2]thiazin-4(3H)-one 2,2-dioxide which was treated with hydrazine hydrate to get corresponding hydrazone precursor. Finally, the titled compounds were obtained by reaction of hydrazone with various substituted aldehydes and ketones. The synthesized derivatives were subjected to carry out their inhibition activities against monoamine oxidases along with modelling investigations to evaluate their binding interactions and dynamic stability during the docking studies. The inhibition profile of potent compounds was found as competitive for both the isozymes. The compounds were more selective inhibitors of MAO-A as compared to MAO-B. Moreover, drug likeness profile of the derivatives was evaluated to have an additional insight into the physicochemical properties. The molecular dynamic simulations predicted the behaviour of amino acids with the active site residues.
    MeSH terms: Aldehydes; Amino Acids; Benzoates; Cyclization; Hydrazines; Hydrazones; Isoenzymes; Ketones; Monoamine Oxidase; Thiazines; Sodium Compounds; Catalytic Domain; Molecular Dynamics Simulation; ortho-Aminobenzoates
  7. Fan YV, Klemeš JJ, Lee CT, Perry S
    J Environ Manage, 2018 Oct 01;223:888-897.
    PMID: 29996113 DOI: 10.1016/j.jenvman.2018.07.005
    Anaerobic digestion (AD) serves as a promising alternative for waste treatment and a potential solution to improve the energy supply security. The feasibility of AD has been proven in some of the technologically and agriculturally advanced countries. However, development is still needed for worldwide implementation, especially for AD process dealing with municipal solid waste (MSW). This paper reviews various approaches and stages in the AD of MSW, which used to optimise the biogas production and quality. The assessed stages include pre-treatment, digestion process, post-treatment as well as the waste collection and transportation. The latest approaches and integrated system to improve the AD process are also presented. The stages were assessed in a relatively quantitative manner. The range of energy requirement, carbon emission footprint and the percentage of enhancement are summarised. Thermal hydrolysis pre-treatment is identified to be less suitable for MSW (-5% to +15.4% enhancement), unless conducted in the two-phase AD system. Microwave pre-treatment shows consistent performance in elevating the biogas production of MSW, but the energy consumption (114.24-8,040 kWeh t-1) and carbon emission footprint (59.93-4,217.78 kg CO2 t-1 waste) are relatively high. Chemical (∼0.43 kWeh m-3) and membrane-based (∼0.45 kWeh m-3) post-treatments are suggested to be a lower energy consumption approach for upgrading the biogas. The feasibility in terms of cost (scale up) and other environmental impacts (non-CO2 footprint) needs to be further assessed. This study provides an overview to facilitate further development and extended implementation of AD.
    MeSH terms: Anaerobiosis; Carbon; Refuse Disposal*; Carbon Footprint*; Solid Waste*
  8. Kirwan GH, Fullwood C, Rooney B
    Cyberpsychol Behav Soc Netw, 2018 Feb;21(2):123-128.
    PMID: 29048944 DOI: 10.1089/cyber.2016.0714
    Social networking sites (SNSs) can provide cybercriminals with various opportunities, including gathering of user data and login credentials to enable fraud, and directing of users toward online locations that may install malware onto their devices. The techniques employed by such cybercriminals can include clickbait (text or video), advertisement of nonexistent but potentially desirable products, and hoax competitions/giveaways. This study aimed to identify risk factors associated with falling victim to these malicious techniques. An online survey was completed by 295 Malaysian undergraduate students, finding that more than one-third had fallen victim to SNS scams. Logistic regression analysis identified several victimization risk factors including having higher scores in impulsivity (specifically cognitive complexity), using fewer devices for SNSs, and having been on an SNS for a longer duration. No reliable model was found for vulnerability to hoax valuable gift giveaways and "friend view application" advertising specifically, but vulnerability to video clickbait was predicted by lower extraversion scores, higher levels of openness to experience, using fewer devices, and being on an SNS for a longer duration. Other personality traits were not associated with either overall victimization susceptibility or increased risk of falling victim to the specific techniques. However, age approached significance within both the video clickbait and overall victimization models. These findings suggest that routine activity theory may be particularly beneficial in understanding and preventing SNSs scam victimization.
    MeSH terms: Adolescent; Adult; Female; Humans; Deception*; Malaysia; Male; Surveys and Questionnaires; Risk Factors; Students/psychology*; Crime Victims/psychology*; Young Adult; Bullying*; Social Networking*
  9. Bull AT, Idris H, Sanderson R, Asenjo J, Andrews B, Goodfellow M
    Extremophiles, 2018 Jan;22(1):47-57.
    PMID: 29101684 DOI: 10.1007/s00792-017-0976-5
    The data reported in this paper are among the first relating to the microbiology of hyper-arid, very high altitude deserts and they provide base line information on the structure of actinobacterial communities. The high mountain Cerro Chajnantor landscape of the Central Andes in northern Chile is exposed to the world's most intense levels of solar radiation and its impoverished soils are severely desiccated. The purpose of this research was to define the actinobacterial community structures in soils at altitudes ranging from 3000 to 5000 m above sea level. Pyrosequencing surveys have revealed an extraordinary degree of microbial dark matter at these elevations that includes novel candidate actinobacterial classes, orders and families. Ultraviolet-B irradiance and a range of edaphic factors were found to be highly significant in determining community compositions at family and genus levels of diversity.
    MeSH terms: Altitude*; Soil/chemistry; Soil Microbiology; Sunlight; Actinobacteria/classification; Actinobacteria/genetics; Actinobacteria/isolation & purification*; Microbiota*; Extreme Environments*
  10. Ngah N, Thomas RL, Shaw MW, Fellowes MDE
    Insects, 2018 Jul 06;9(3).
    PMID: 29986404 DOI: 10.3390/insects9030080
    Plant pathogens can profoundly affect host plant quality as perceived by their insect herbivores, with potentially far-reaching implications for the ecology and structure of insect communities. Changes in host plants may have direct effects on the life-histories of their insect herbivores, which can then influence their value as prey to their natural enemies. While there have been many studies that have explored the effects of infection when plants show symptoms of disease, little is understood about how unexpressed infection may affect interactions at higher trophic levels. We examined how systemic, asymptomatic, and seed-borne infection by the ubiquitous plant pathogen Botrytis cinerea, infecting two varieties of the lettuce Lactuca sativa, affected aphids (the green peach aphid, Myzus persicae) and two widely used biocontrol agents (the parasitoid Aphidius colemani and the ladybird predator Adalia bipunctata). Lettuce varieties differed in host plant quality. Asymptomatic infection reduced chlorophyll content and dry weight of host plants, irrespective of plant variety. Aphids reared on asymptomatic plants were smaller, had reduced off-plant survival time and were less fecund than aphids reared on uninfected plants. Parasitoids showed reduced attack rates on asymptomatically infected plants, and wasps emerging from hosts reared on such plants were smaller and showed reduced starvation resistance. When given a choice in an olfactometer, aphids preferentially chose uninfected plants of one variety (Tom Thumb) but showed no preference with the second (Little Gem) variety. Parasitoids preferentially chose aphids on uninfected plants, irrespective of host plant variety, but ladybirds did not show any such preference. These results suggest that the reduced quality of plants asymptomatically infected by Botrytis cinerea negatively affects the life history of aphids and their parasitoids, and alters the behaviors of aphids and parasitoids, but not of ladybirds. Fungal pathogens are ubiquitous in nature, and this work shows that even when host plants are yet to show symptoms, pathogens can affect interactions between insect herbivores and their natural enemies. This is likely to have important implications for the success of biological control programs.
  11. Leong YS, Ker PJ, Jamaludin MZ, M Nomanbhay S, Ismail A, Abdullah F, et al.
    Sensors (Basel), 2018 Jul 06;18(7).
    PMID: 29986438 DOI: 10.3390/s18072175
    Monitoring the condition of transformer oil is considered to be one of the preventive maintenance measures and it is very critical in ensuring the safety as well as optimal performance of the equipment. Various oil properties and contents in oil can be monitored such as acidity, furanic compounds and color. The current method is used to determine the color index (CI) of transformer oil produces an error of 0.5 in measurement, has high risk of human handling error, additional expense such as sampling and transportations, and limited samples can be measured per day due to safety and health reasons. Therefore, this work proposes the determination of CI of transformer oil using ultraviolet-to-visible (UV-Vis) spectroscopy. Results show a good correlation between the CI of transformer oil and the absorbance spectral responses of oils from 300 nm to 700 nm. Modeled equations were developed to relate the CI of the oil with the cutoff wavelength and absorbance, and with the area under the curve from 360 nm to 600 nm. These equations were verified with another set of oil samples. The equation that describes the relationship between cutoff wavelength, absorbance and CI of the oil shows higher accuracy with root mean square error (RMSE) of 0.1961.
  12. Syn NL, Wong AL, Lee SC, Teoh HL, Yip JWL, Seet RC, et al.
    BMC Med, 2018 07 10;16(1):104.
    PMID: 29986700 DOI: 10.1186/s12916-018-1093-8
    BACKGROUND: Genotype-guided warfarin dosing has been shown in some randomized trials to improve anticoagulation outcomes in individuals of European ancestry, yet its utility in Asian patients remains unresolved.

    METHODS: An open-label, non-inferiority, 1:1 randomized trial was conducted at three academic hospitals in South East Asia, involving 322 ethnically diverse patients newly indicated for warfarin (NCT00700895). Clinical follow-up was 90 days. The primary efficacy measure was the number of dose titrations within the first 2 weeks of therapy, with a mean non-inferiority margin of 0.5 over the first 14 days of therapy.

    RESULTS: Among 322 randomized patients, 269 were evaluable for the primary endpoint. Compared with traditional dosing, the genotype-guided group required fewer dose titrations during the first 2 weeks (1.77 vs. 2.93, difference -1.16, 90% CI -1.48 to -0.84, P 

    MeSH terms: Adult; Aged; Aged, 80 and over; Anticoagulants/administration & dosage; Anticoagulants/pharmacology; Anticoagulants/therapeutic use*; Female; Genotype; Humans; Male; Middle Aged; Warfarin/administration & dosage; Warfarin/pharmacology; Warfarin/therapeutic use*; Maximum Tolerated Dose*; Asian Continental Ancestry Group; Young Adult
  13. Chin KY, Tay SS
    Nutrients, 2018 Jul 09;10(7).
    PMID: 29987193 DOI: 10.3390/nu10070881
    Alzheimer’s disease (AD) is plaguing the aging population worldwide due to its tremendous health care and socioeconomic burden. Current treatment of AD only offers symptomatic relief to patients. Development of agents targeting specific pathologies of AD is very slow. Tocotrienol, a member of the vitamin E family, can tackle many aspects of AD, such as oxidative stress, mitochondrial dysfunction and abnormal cholesterol synthesis. This review summarizes the current evidence on the role of tocotrienol as a neuroprotective agent. Preclinical studies showed that tocotrienol could reduce oxidative stress by acting as a free-radical scavenger and promoter of mitochondrial function and cellular repair. It also prevented glutamate-induced neurotoxicity in the cells. Human epidemiological studies showed a significant inverse relationship between tocotrienol levels and the occurrence of AD. However, there is no clinical trial to support the claim that tocotrienol can delay or prevent the onset of AD. As a conclusion, tocotrienol has the potential to be developed as an AD-preventing agent but further studies are required to validate its efficacy in humans.
    MeSH terms: Aged; Alzheimer Disease/drug therapy*; Alzheimer Disease/metabolism; Alzheimer Disease/epidemiology; Alzheimer Disease/psychology; Animals; Anti-Inflammatory Agents/therapeutic use; Antioxidants/therapeutic use; Brain/drug effects*; Brain/metabolism; Brain/pathology; Brain/physiopathology; Cognition/drug effects*; Female; Humans; Male; Memory/drug effects; Middle Aged; Mitochondria/drug effects; Mitochondria/metabolism; Mitochondria/pathology; Neurons/drug effects*; Neurons/metabolism; Neurons/pathology; Amyloid beta-Peptides/metabolism; Oxidative Stress/drug effects; Neuroprotective Agents/adverse effects; Neuroprotective Agents/therapeutic use*; Tocotrienols/adverse effects; Tocotrienols/therapeutic use*
  14. Tew LS, Cai MT, Lo LW, Khung YL, Chen NT
    Materials (Basel), 2018 Jul 09;11(7).
    PMID: 29987236 DOI: 10.3390/ma11071170
    Photodynamic therapy (PDT) is a cancer treatment that employs the production of cytotoxic reactive oxygen species (ROS), subsequently triggering tumor apoptosis and tumor size reduction. However, this approach suffers from insufficient light penetration depth. In order to mitigate this issue, pollen-structured gold clusters (PSGCs) were designed for mediating X-ray-induced PDT for radiotherapy enhancement. The structure of PSGCs provides a large surface area that is able to generate ROS upon X-ray irradiation. The synthesized PSGCs were exposed to different X-ray doses and the generated ROS was then quantified by dihydroethidium (DHE) assay. Furthermore, at the cellular level, the PDT efficacy of PSGCs was evaluated via immunofluorescence staining with γ-H2AX and comet assay. The results demonstrated that PSGCs possess a significantly high ROS-generating capacity and a remarkable PDT efficacy in the treatment of breast cancer cells, thus showing potential clinical uses in deep-tissue cancer treatment.
    MeSH terms: Breast Neoplasms; Ethidium; Fluorescent Antibody Technique; Gamma Rays; Gold; Photochemotherapy; Pollen; Radiography; Staining and Labeling; X-Rays; Apoptosis; Reactive Oxygen Species; Comet Assay
  15. Subramaniam S, Ima-Nirwana S, Chin KY
    PMID: 29987247 DOI: 10.3390/ijerph15071445
    Bone health screening plays a vital role in the early diagnosis and treatment of osteoporosis to prevent fragility fractures among the elderly and high-risk individuals. Dual-energy X-ray absorptiometry (DXA), which detects bone mineral density, is the gold standard in diagnosing osteoporosis but is not suitable for screening. Therefore, many screening tools have been developed to identify individuals at risk for osteoporosis and prioritize them for DXA scanning. The Osteoporosis Self-assessment Tool (OST) is among the first tools established to predict osteoporosis in postmenopausal women. It can identify the population at risk for osteoporosis, but its performance varies according to ethnicity, gender, and age. Thus, these factors should be considered to ensure the optimal use of OST worldwide. Overall, OST is a simple and economical screening tool to predict osteoporosis and it can help to optimize the use of DXA.
    MeSH terms: Adult; Age Factors; Aged; Ethnic Groups; Female; Humans; Mass Screening/methods*; Middle Aged; Osteoporosis/diagnosis*; Osteoporosis/epidemiology*; Sex Factors; Bone Density*; Diagnostic Self Evaluation*
  16. Ahmed MA, Zaidan BB, Zaidan AA, Salih MM, Lakulu MMB
    Sensors (Basel), 2018 Jul 09;18(7).
    PMID: 29987266 DOI: 10.3390/s18072208
    Loss of the ability to speak or hear exerts psychological and social impacts on the affected persons due to the lack of proper communication. Multiple and systematic scholarly interventions that vary according to context have been implemented to overcome disability-related difficulties. Sign language recognition (SLR) systems based on sensory gloves are significant innovations that aim to procure data on the shape or movement of the human hand. Innovative technology for this matter is mainly restricted and dispersed. The available trends and gaps should be explored in this research approach to provide valuable insights into technological environments. Thus, a review is conducted to create a coherent taxonomy to describe the latest research divided into four main categories: development, framework, other hand gesture recognition, and reviews and surveys. Then, we conduct analyses of the glove systems for SLR device characteristics, develop a roadmap for technology evolution, discuss its limitations, and provide valuable insights into technological environments. This will help researchers to understand the current options and gaps in this area, thus contributing to this line of research.
    MeSH terms: Gestures; Humans; Movement; Pattern Recognition, Automated/methods*; Sign Language*
  17. Rigatelli G, Zuin M, Fong A
    J Atr Fibrillation, 2018 Feb;10(5):1852.
    PMID: 29988264 DOI: 10.4022/jafib.1852
    Background: An impairment of the left atrial function similar to that usually observed in atrial fibrillation (AF) has been observed also in patients with patent foramen ovale (PFO) and permanent right-to-left shunting (RLS).
    Methods: We reconstructed the geometrical model of right atrium (RA), PFO, left atrium (LA) and left atrial appendage (LAA) of 65 patients with mild (36 patients mean age 45.5±6.8 years, 24 females) or permanent (29 patients, mean age 45.1±5.3 years, 21 females) RLS using anatomical data obtained by transoesophageal echocardiography (TEE) and cardiac MRI, performed as a part of our institutional screening protocol for paradoxical embolism. Using computational fluid dynamic analysis (CFD) we assessed the vorticity magnitude in both the LA and LAA to analyse a possible rheological relationship between PFO and AF.
    Results: The anatomical models, in terms of dimensions, were comparable among the patients with mild and permanent RLS. A higher vorticity magnitude was observed in the mild shunt both in the LA (101.12±21.3 vs 88.3±22.6, p=0.02) and LAA (62±14.4 vs 32.4±12.3, p<0.01) when compared to the permanent R-L shunting.
    Conclusion: The lower vorticity magnitude across the LA and LAA in patients with permanent RLS suggests a possible higher stagnation of the blood in these anatomical sites, similarly as previously observed in patients with AF.
    MeSH terms: Atrial Fibrillation*; Humans; Foramen Ovale, Patent*
  18. Farzin A, Ibrahim R, Madon Z, Basri H
    Dement Neuropsychol, 2018 7 11;12(2):189-195.
    PMID: 29988335 DOI: 10.1590/1980-57642018dn12-020012
    The surrounding circumstances and environments of Malaysian older adults could make conducting interventions (mainly in terms of clinical or randomized controlled trials) a challenge. Working with older adults and facing cultural issues could be challenging.

    Objective: This paper illustrates a significant perspective of some of the challenges faced while conducting a randomized controlled trial exploring the impact of a multi-component intervention that included strategy- and process-based prospective memory (PM) training among Malaysian older adults.

    Methods: The current study was a randomized controlled trial (RCT) and therefore the challenges were presented in accordance with the CONSORT statement style.

    Results: A discussion on how these issues were addressed is provided.

    Conclusion: Some suggestions were presented to help researchers plan and create interventions for similar studies and to support a practical method of addressing all related challenges.

    MeSH terms: Adult; Environment; Humans; Research Personnel; Suggestion; Randomized Controlled Trials as Topic; Memory, Episodic
  19. Cheng P, Wang Y, Liang J, Wu Y, Wright A, Liao X
    Front Microbiol, 2018;9:1342.
    PMID: 29988353 DOI: 10.3389/fmicb.2018.01342
    There is growing interest in the use of unconventional feed ingredients containing higher dietary fiber for pig production due to increasing prices of cereal grains and the potential health benefits of dietary fiber on host animals. This study aimed to gain insight into the community-wide microbiome population between the Chinese native Lantang pigs and the commercial Duroc pigs to uncover the microbiological mechanisms for the degradation capacity of fiber in pigs. Utilizing the metagenomics approach, we compared the phylogeny and functional capacity of the fecal microbiome from approximately 150-day-old female Lantang and Duroc pigs fed a similar diet. The structure of the fecal microbial community from the two pig breeds was different at the genus level; the number of genes associated with fiber degradation was higher in Lantang pigs. Further analysis and prediction of their functions from the fecal microbiomes of the two pig breeds revealed that the degradation capacities of fiber, branched chain fatty acids, and oligosaccharides were higher in Lantang pigs. The ability of lignocellulose bonding modules and the transport capacities of xylose, L-arabinose, ribose and methyl galactose were also higher in Lantang pigs. Similarly, the metabolic capacities of xylose, ribose, and fucose and the potential effectiveness of the tricarboxylic acid cycle (TCA) and gene abundance in the hydrogen sink pathway were higher in the fecal microbiome from Lantang pigs. Lantang pigs have a higher capacity to utilize dietary fiber than Duroc pigs, and the differences in the capability to utilize dietary fiber between the indigenous and commercial pigs could be differences in the composition and biological function of the gut microbiota.
    MeSH terms: Gastrointestinal Microbiome; Animals; Arabinose; Edible Grain; Citric Acid Cycle; Diet; Dietary Fiber; Fatty Acids; Female; Fucose; Galactose; Hydrogen; Lignin; Oligosaccharides; Phylogeny; Ribose; Swine; Xylose; Sus scrofa; Metagenomics; Microbiota
  20. Khan MSA, Khundmiri SUK, Khundmiri SR, Al-Sanea MM, Mok PL
    Front Pharmacol, 2018;9:569.
    PMID: 29988459 DOI: 10.3389/fphar.2018.00569
    Ulceration in the stomach develops in peptic ulcer disease when there is a loss of protective mucosal layers, particularly in Helicobacter pylori infection. Antibiotic therapy has failed to eradicate and impede the colonization of H. pylori. Despite given treatment, recurrent bleeding can occur and lead to death in the affected individual. The disease progression is also related to the non-steroidal inflammatory drug and stress. There are extensive research efforts to identify the gastroprotective property from various alkaloids, flavonoids, and tannins compounds from plants and marine. These natural products are believed to be safe for consumption. However, not much attention was given to summarize the carbohydrate and terpenoidal anti-ulcer compounds. Hence, this review will cover the possible mechanisms and information about acidic hydroxylans, arabinogalactan and rhamnogalacturon; and limonene, pinene, lupeol, citral, ursolic acid and nomilin to exemplify on the gastroprotective properties of polysaccharides and terpenoid, respectively, obtained from fruits. These compounds could act as a prebiotic to prevent the inhabitation of H. pylori, modulate the inflammation, suppress gastric cancer growth, and capable of stimulating the reparative mechanisms on the affected regions. Finally, this review provides the future research prospects of these natural compounds in an effort to develop new therapy for gastrointestinal tissue healing.
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