Browse publications by year: 2018

  1. Nagendrababu V, Jayaraman J, Suresh A, Kalyanasundaram S, Neelakantan P
    Clin Oral Investig, 2018 Mar;22(2):655-670.
    PMID: 29372445 DOI: 10.1007/s00784-018-2345-x
    OBJECTIVES: Reduction of microbial load from the root canal systems is a pre-requisite for healing of lesions of endodontic origin. Such microbial reduction is influenced by the method of irrigant delivery and activation. The aim of this systematic review was to compare the effect of ultrasonically activated irrigation (UAI) with other irrigation techniques on the reduction of microorganisms during root canal disinfection.

    MATERIALS AND METHODS: The research question was created based on the PICO strategy. Two reviewers independently performed a comprehensive literature search in electronic databases. Following application of inclusion and exclusion criteria to the selected articles, a systematic data extraction sheet was constructed. The selected articles were assessed using methodological quality scoring protocol. The risk of bias in selected studies was critically assessed by two reviewers.

    RESULTS: A total of 15 articles were included for the systematic review. The included studies were heterogeneous in study design; hence, meta-analysis was not performed. The overall risk of bias for the selected studies was moderate. Overall, UAI showed superior reduction of microbial counts, resulting in better disinfection compared to other irrigation systems chosen for comparison in this review.

    CONCLUSION: The use of UAI can bring about superior microbial reduction within the root canal system compared to other irrigant activation techniques.

    CLINICAL RELEVANCE: Activation of irrigants with ultrasonic brings about significant bacterial reduction from the root canal systems compared to other methods of irrigant activation and conventional syringe irrigation. This might help in improving the outcome of root canal treatment.

  2. Kamarajah SK, Chan WK, Nik Mustapha NR, Mahadeva S
    Hepatol Int, 2018 Jan;12(1):44-55.
    PMID: 29372507 DOI: 10.1007/s12072-018-9843-4
    INTRODUCTION: The value of repeated liver stiffness measurement (LSM) in non-alcoholic fatty liver disease (NAFLD) has not been shown before.

    METHODS: A longitudinal study of biopsy-proven NAFLD patients was conducted at the Asian tertiary hospital from November 2012 to January 2017. Patients with paired liver biopsies and LSM were followed prospectively for liver-related and non-liver related complications, and survival.

    RESULTS: The data for 113 biopsy-proven NAFLD patients (mean age 51.3 ± 10.6 years, male 50%) were analyzed. At baseline, advanced fibrosis based on histology and LSM was observed in 22 and 46%, respectively. Paired liver biopsy and LSM at 1-year interval was available in 71 and 80% of patients, respectively. High-risk cases (defined as patients with advanced fibrosis at baseline who had no fibrosis improvement, and patients who developed advanced fibrosis on repeat assessment) were seen in 23 and 53% of patients, based on paired liver biopsy and LSM, respectively. Type 2 diabetes mellitus was independently associated with high-risk cases. The median follow-up was 37 months with a total follow-up of 328 person-years. High-risk cases based on paired liver biopsy had significantly higher rates of liver-related complications (p = 0.002) but no difference in other outcomes. High-risk patients based on paired LSM had a significantly higher rate of liver-related complications (p = 0.046), cardiovascular events (p = 0.025) and composite outcomes (p = 0.006).

    CONCLUSION: Repeat LSM can predict liver-related complications, similar to paired liver biopsy, and may be useful in identifying patients who may be at an increased risk of cardiovascular events. Further studies in a larger cohort and with a longer follow-up should be carried out to confirm these observations.

    MeSH terms: Biopsy; Diabetes Mellitus, Type 2; Female; Humans; Cholesterol, HDL; Cholesterol, LDL; Liver Cirrhosis/blood; Liver Cirrhosis/mortality*; Liver Cirrhosis/pathology; Longitudinal Studies; Malaysia; Male; Middle Aged; Predictive Value of Tests; Prospective Studies; Severity of Illness Index*; Survival Analysis; Non-alcoholic Fatty Liver Disease/blood; Non-alcoholic Fatty Liver Disease/mortality*; Non-alcoholic Fatty Liver Disease/pathology
  3. Foong HF, Hamid TA, Ibrahim R, Haron SA
    Psychogeriatrics, 2018 Jan;18(1):21-29.
    PMID: 29372603 DOI: 10.1111/psyg.12279
    BACKGROUND: The link between psychosocial stress and cognitive function is complex, and previous studies have indicated that it may be mediated by processing speed. Therefore, the main aim of this study was to examine whether processing speed mediates the association between psychosocial stress and global cognition in older adults. Moreover, the moderating role of gender in this model is examined as well.

    METHODS: The study included 2322 community-dwelling older adults in Malaysia who were randomly selected through a multistage proportional cluster random sampling technique. Global cognition construct was measured by the Mini-Mental State Examination and Montreal Cognitive Assessment; psychosocial stress construct was measured by perceived stress, depression, loneliness, and neuroticism; and processing speed was assessed by the Digit Symbol Substitution Test. Structural equation modelling was used to analyze the mediation and moderation tests.

    RESULTS: Processing speed was found to partially mediate the relationship between psychosocial stress and global cognition (β in the direct model = -0.15, P 

    MeSH terms: Aged; Aged, 80 and over; Cognition/physiology*; Cognition Disorders/diagnosis*; Cognition Disorders/physiopathology; Cognition Disorders/psychology; Depression; Female; Humans; Loneliness; Malaysia; Male; Mental Processes*; Stress, Psychological*; Independent Living/psychology*; Mild Cognitive Impairment
  4. Givehchi S, Safari MJ, Tan SK, Md Shah MNB, Sani FBM, Azman RR, et al.
    Phys Med, 2018 Jan;45:198-204.
    PMID: 29373248 DOI: 10.1016/j.ejmp.2017.09.137
    PURPOSE: Accurate determination of the bifurcation angle and correlation with plaque buildup may lead to the prediction of coronary artery disease (CAD). This work evaluates two techniques to measure bifurcation angles in 3D space using coronary computed tomography angiography (CCTA).

    MATERIALS AND METHODS: Nine phantoms were fabricated with different bifurcation angles ranging from 55.3° to 134.5°. General X-ray and CCTA were employed to acquire 2D and 3D images of the bifurcation phantoms, respectively. Multiplanar reformation (MPR) and volume rendering technique (VRT) were used to measure the bifurcation angle between the left anterior descending (LAD) and left circumflex arteries (LCx). The measured angles were compared with the true values to determine the accuracy of each measurement technique. Inter-observer variability was evaluated. The two techniques were further applied on 50 clinical CCTA cases to verify its clinical value.

    RESULTS: In the phantom setting, the mean absolute differences calculated between the true and measured angles by MPR and VRT were 2.4°±2.2° and 3.8°±2.9°, respectively. Strong correlation was found between the true and measured bifurcation angles. Furthermore, no significant differences were found between the bifurcation angles measured using either technique. In clinical settings, large difference of 12.0°±10.6° was found between the two techniques.

    CONCLUSION: In the phantom setting, both techniques demonstrated a significant correlation to the true bifurcation angle. Despite the lack of agreement of the two techniques in the clinical context, our findings in phantoms suggest that MPR should be preferred to VRT for the measurement of coronary bifurcation angle by CCTA.

    MeSH terms: Female; Humans; Male; Models, Anatomic; Observer Variation; Coronary Angiography/instrumentation; Coronary Angiography/methods*; Phantoms, Imaging; Imaging, Three-Dimensional/instrumentation; Imaging, Three-Dimensional/methods*; Computed Tomography Angiography/instrumentation; Computed Tomography Angiography/methods*
  5. Springer SA, Di Paola A, Azar MM, Barbour R, Biondi BE, Desabrais M, et al.
    J Acquir Immune Defic Syndr, 2018 05 01;78(1):43-53.
    PMID: 29373393 DOI: 10.1097/QAI.0000000000001634
    OBJECTIVE: To determine whether extended-release naltrexone (XR-NTX) would improve or maintain viral suppression (VS) among prisoners or jail detainees with HIV and opioid use disorder (OUD) transitioning to the community.

    DESIGN: A 4-site, prospective randomized double-blind, placebo-controlled trial was conducted among prison and jail inmates with HIV and OUD transitioning to the community from September 2010 through March 2016.

    METHODS: Eligible participants (N = 93) were randomized 2:1 to receive 6 monthly injections of XR-NTX (n = 66) or placebo (n = 27) starting at release and observed for 6 months. The primary outcome was the proportion that maintained or improved VS (<50 copies/mL) from baseline to 6 months.

    RESULTS: Participants allocated to XR-NTX significantly improved to VS (<50 copies/mL) from baseline (37.9%) to 6 months (60.6%) (P = 0.002), whereas the placebo group did not (55.6% at baseline to 40.7% at 6 months P = 0.294). There was, however, no statistical significant difference in VS levels at 6 months between XR-NTX (60.6%) vs. placebo (40.7%) (P = 0.087). After controlling for other factors, only allocation to XR-NTX (adjusted odds ratio = 2.90; 95% confidence interval = 1.04 to 8.14, P = 0.043) was associated with the primary outcome. Trajectories in VS from baseline to 6 months differed significantly (P = 0.017) between treatment groups, and the differences in the discordant values were significantly different as well (P = 0.041): the XR-NTX group was more likely than the placebo group to improve VS (30.3% vs. 18.5%), maintain VS (30.3% vs. 27.3), and less likely to lose VS (7.6% vs. 33.3%) by 6 months.

    CONCLUSIONS: XR-NTX improves or maintains VS after release to the community for incarcerated people living with HIV with OUD.

    MeSH terms: Adult; Criminal Law; Delayed-Action Preparations; Double-Blind Method; Female; Follow-Up Studies; Humans; Injections, Intramuscular; Male; Middle Aged; Naltrexone/administration & dosage; Naltrexone/adverse effects; Naltrexone/therapeutic use*; Narcotic Antagonists/administration & dosage; Narcotic Antagonists/adverse effects; Narcotic Antagonists/therapeutic use*; Opioid-Related Disorders/complications; Opioid-Related Disorders/drug therapy*; Prisoners*; Prospective Studies; Research Design; RNA, Viral; Time Factors; HIV-1; HIV Infections/complications; HIV Infections/drug therapy*; Multivariate Analysis; Treatment Outcome; Viral Load
  6. Mohd Mutalip SS, Ab-Rahim S, Rajikin MH
    Antioxidants (Basel), 2018 Jan 26;7(2).
    PMID: 29373543 DOI: 10.3390/antiox7020022
    Vitamin E was first discovered in 1922 as a substance necessary for reproduction. Following this discovery, vitamin E was extensively studied, and it has become widely known as a powerful lipid-soluble antioxidant. There has been increasing interest in the role of vitamin E as an antioxidant, as it has been discovered to lower body cholesterol levels and act as an anticancer agent. Numerous studies have reported that vitamin E exhibits anti-proliferative, anti-survival, pro-apoptotic, and anti-angiogenic effects in cancer, as well as anti-inflammatory activities. There are various reports on the benefits of vitamin E on health in general. However, despite it being initially discovered as a vitamin necessary for reproduction, to date, studies relating to its effects in this area are lacking. Hence, this paper was written with the intention of providing a review of the known roles of vitamin E as an antioxidant in female reproductive health.
  7. Voon HY, Shafie AA, Bujang MA, Suharjono HN
    J Obstet Gynaecol Res, 2018 Jan;44(1):109-116.
    PMID: 29027315 DOI: 10.1111/jog.13486
    AIM: To evaluate the cost effectiveness of carbetocin compared to oxytocin when used as prophylaxis against post-partum hemorrhage (PPH) during cesarean deliveries.

    METHODS: A systematic review of the literature was performed to identify randomized controlled trials that compared the use of carbetocin to oxytocin in the context of cesarean deliveries. Cost effectiveness analysis was then performed using secondary data from the perspective of a maternity unit within the Malaysian Ministry of Health, over a 24 h time period.

    RESULTS: Seven randomized controlled trials with over 2000 patients comparing carbetocin with oxytocin during cesarean section were identified. The use of carbetocin in our center, which has an average of 3000 cesarean deliveries annually, would have prevented 108 episodes of PPH, 104 episodes of transfusion and reduced the need for additional uterotonics in 455 patients. The incremental cost effectiveness ratio of carbetocin for averting an episode of PPH was US$278.70.

    CONCLUSION: Reduction in retreatment, staffing requirements, transfusion and potential medication errors mitigates the higher index cost of carbetocin. From a pharmacoeconomic perspective, in the context of cesarean section, carbetocin was cost effective as prophylaxis against PPH. Ultimately, the relative value placed on the outcomes above and the individual unit's resources would influence the choice of uterotonic.

    MeSH terms: Adolescent; Adult; Cesarean Section/economics; Cesarean Section/statistics & numerical data*; Cost-Benefit Analysis/economics; Cost-Benefit Analysis/statistics & numerical data*; Female; Postpartum Hemorrhage/prevention & control*; Hospitals, Maternity/economics; Hospitals, Maternity/statistics & numerical data*; Humans; Outcome and Process Assessment (Health Care)/economics; Outcome and Process Assessment (Health Care)/statistics & numerical data*; Oxytocics/economics; Oxytocics/pharmacology*; Oxytocin/analogs & derivatives*; Oxytocin/economics; Oxytocin/pharmacology; Pregnancy; Randomized Controlled Trials as Topic/statistics & numerical data*; Young Adult; Hospitals, High-Volume/statistics & numerical data*
  8. Mishra V, Patil A, Thakur S, Kesharwani P
    Drug Discov Today, 2018 06;23(6):1219-1232.
    PMID: 29366761 DOI: 10.1016/j.drudis.2018.01.006
    Nanotechnology has gained significant interest from biomedical and analytical researchers in recent years. Carbon dots (C-dots), a new member of the carbon nanomaterial family, are spherical, nontoxic, biocompatible, and discrete particles less than 10nm in diameter. Research interest has focused on C-dots because of their ultra-compact nanosize, favorable biocompatibility, outstanding photoluminescence, superior electron transfer ability, and versatile surface engineering properties. C-dots show significant potential for use in cellular imaging, biosensing, targeted drug delivery, and other biomedical applications. Here we discuss C-dots, in terms of their physicochemical properties, fabrication techniques, toxicity issues, surface engineering and biomedical potential in drug delivery, targeting as well as bioimaging.
    MeSH terms: Theranostic Nanomedicine; Animals; Diagnostic Imaging; Humans; Drug Delivery Systems; Gene Transfer Techniques
  9. Teo PS, van Langeveld AWB, Pol K, Siebelink E, de Graaf C, Yan SW, et al.
    Appetite, 2018 06 01;125:32-41.
    PMID: 29366933 DOI: 10.1016/j.appet.2018.01.020
    Three recent studies showed that taste intensity signals nutrient content. However, current data reflects only the food patterns in Western societies. No study has yet been performed in Asian culture. The Malaysian cuisine represents a mixture of Malay, Chinese and Indian foods. This study aimed to investigate the associations between taste intensity and nutrient content in commonly consumed Dutch (NL) and Malaysian (MY) foods. Perceived intensities of sweetness, sourness, bitterness, umami, saltiness and fat sensation were assessed for 469 Dutch and 423 Malaysian commonly consumed foods representing about 83% and 88% of an individual's average daily energy intake in each respective country. We used a trained Dutch (n = 15) and Malaysian panel (n = 20) with quantitative sensory Spectrum™ 100-point rating scales and reference solutions, R1 (13-point), R2 (33-point) and R3 (67-point). Dutch and Malaysian foods had relatively low mean sourness and bitterness (
    MeSH terms: Adult; Dietary Fats/analysis; Dietary Proteins/analysis; Eating/psychology*; Female; Food Preferences/psychology; Humans; Malaysia; Male; Netherlands; Taste*; European Continental Ancestry Group/psychology*; Asian Continental Ancestry Group/psychology*; Taste Perception*; Young Adult
  10. Kumar CM, Van Zundert AAJ
    Can J Anaesth, 2018 05;65(5):578-585.
    PMID: 29368315 DOI: 10.1007/s12630-018-1074-6
    The Valsalva maneuver (VM) involves expiratory effort against a closed mouth and/or glottis in the sitting or supine position with the increased intraoral and intrathoracic pressure raised to 40 mmHg for 15-20 sec after which the pressure is suddenly released and the breathing restored to normal. Complex cardiovascular and other physiologic changes occur during the VM. The VM has been used for diagnostic and therapeutic reasons as well as intraoperatively during specific surgical procedures. Although the VM is usually safe, rare complications have been reported. This review examines the published literature surrounding the VM and explores the physiologic changes that occur during its performance. Attempts have been made to understand its intraoperative uses and complications and how these can be prevented.
    MeSH terms: Anesthesia; Heart Rate; Humans; Valsalva Maneuver/physiology*; Monitoring, Intraoperative; Neurosurgical Procedures
  11. Supriatno, Nurlelasari, Herlina T, Harneti D, Maharani R, Hidayat AT, et al.
    Nat Prod Res, 2018 Nov;32(21):2610-2616.
    PMID: 29368952 DOI: 10.1080/14786419.2018.1428600
    A new limonoid, pentandricine (1), along with three known limonoids, ceramicine B (2), 6-de(acetyloxy)-23-oxochisocheton (3), 6-de(acetyloxy)-23-oxo-7-O-deacetylchisocheton (4), have been isolated from the stembark of Chisocheton pentandrus. The chemical structures of the new compound were elucidated on the basis of spectroscopic evidence. All of the compounds were tested for their cytotoxic effects against MCF-7 breast cancer cells. Compounds 1-4 showed weak and no cytotoxicity against MCF-7 breast cancer cells with IC50 values of 369.84, 150.86, 208.93 and 120.09 μM, respectively.
    MeSH terms: Antineoplastic Agents, Phytogenic/isolation & purification; Antineoplastic Agents, Phytogenic/pharmacology*; Humans; Indonesia; Plant Extracts/chemistry; Molecular Structure; Plant Bark/chemistry; Meliaceae/chemistry*; Limonins/isolation & purification; Limonins/pharmacology*; MCF-7 Cells; Phytochemicals/isolation & purification; Phytochemicals/pharmacology
  12. Md Radzi AB, Tan SS
    Medicine (Baltimore), 2018 Jan;97(4):e8884.
    PMID: 29369168 DOI: 10.1097/MD.0000000000008884
    RATIONALE: We report a rare case of hepatocellular carcinoma (HCC) with metastases to the mandible and coracoid process of scapula without evidence of lung involvement.

    PATIENTS CONCERNS: The patient was diagnosed with HCC, presented 5 months later with right lower tooth pain, swelling over the right mandible area and right shoulder pain.

    DIAGNOSES: Histopathological examination of mandible showed findings suggestive of metastatic HCC. Magnetic resonance imaging (MRI) of the right shoulder revealed findings of irregular enhancing lesion at the right coracoid process causing erosion of the coracoid process.

    INTERVENTIONS: Patient was subsequently referred for palliative medicine care.

    OUTCOMES: He received adequate analgesia.

    LESSONS: Oral cavity and scapula metastases from HCC are very rare. Most oral metastases are associated with lung metastases, and they possibly occur by hematogenous route. In our case, the possible pathway of metastasis is an anastomotic network of paravertebral veins that bypasses the pulmonary, inferior caval, and portal venous circulations.

    MeSH terms: Bone Neoplasms/secondary*; Carcinoma, Hepatocellular/secondary*; Humans; Liver Neoplasms/pathology*; Male; Mandibular Neoplasms/secondary*; Middle Aged; Coracoid Process/pathology*
  13. Bjørklund G, Dadar M, Martins N, Chirumbolo S, Goh BH, Smetanina K, et al.
    Basic Clin Pharmacol Toxicol, 2018 Jun;122(6):539-558.
    PMID: 29369521 DOI: 10.1111/bcpt.12972
    Several studies have reported that nature-derived antioxidants may prevent free radicals over-production and therefore control the onset and prevent the exacerbation of different kinds of diseases caused by oxidative stress and redox-derived stressors, including ageing, fundamentally by suppressing the oxidative by-products-mediated degradation. Naturally derived antioxidants exert their anti-ageing action via a panoply of signalling systems, many of which engaging reactive oxygen and nitrogen species scavenging, with the Nrf2/Keap1-ARE system and improving the many survival genes and functions (such as the pathway mTOR/Foxo/SIRT1) able to slow cellular senescence. Most of the research in this field has evaluated the regulative effects and even pathways of herbal extracts with antioxidant property in the ageing process, and various age-related disorders such as cardiovascular disease, ischaemia-reperfusion injury, coronary and myocardial circulatory perfusion, peripheral vascular resistance, and even neurodegenerative disorders are prevented plant phytochemicals often via their antioxidant potential. A much more complex ability to interact with survival functions makes these compounds successfully active in preventing ageing-related disorders. This report aimed to discuss in more detail some selected medicinal plants including Allium sativum, Aloe vera, Crataegus spp., Cynara scolymus, Eleutherococcus senticosus, Ginkgo biloba, Hippophae rhamnoides, Panax ginseng, Rosmarinus officinalis, Schizandra chinensis, Vitis vinifera and seaweeds in the prevention of ageing-related pathologies. A systematic overview of the relevant information in the antioxidant function of the many herbal products reviewed here for the control of the ageing process is proposed, to provide a new horizon on the design of anti-ageing herbal medicines.
    MeSH terms: Aging/drug effects*; Animals; Antioxidants/pharmacology; Geriatrics*; Humans; Phytotherapy*; Plants, Medicinal*; Seaweed/chemistry
  14. Illias HA, Zhao Liang W
    PLoS One, 2018;13(1):e0191366.
    PMID: 29370230 DOI: 10.1371/journal.pone.0191366
    Early detection of power transformer fault is important because it can reduce the maintenance cost of the transformer and it can ensure continuous electricity supply in power systems. Dissolved Gas Analysis (DGA) technique is commonly used to identify oil-filled power transformer fault type but utilisation of artificial intelligence method with optimisation methods has shown convincing results. In this work, a hybrid support vector machine (SVM) with modified evolutionary particle swarm optimisation (EPSO) algorithm was proposed to determine the transformer fault type. The superiority of the modified PSO technique with SVM was evaluated by comparing the results with the actual fault diagnosis, unoptimised SVM and previous reported works. Data reduction was also applied using stepwise regression prior to the training process of SVM to reduce the training time. It was found that the proposed hybrid SVM-Modified EPSO (MEPSO)-Time Varying Acceleration Coefficient (TVAC) technique results in the highest correct identification percentage of faults in a power transformer compared to other PSO algorithms. Thus, the proposed technique can be one of the potential solutions to identify the transformer fault type based on DGA data on site.
    MeSH terms: Algorithms; Equipment Failure/statistics & numerical data; Gases/analysis*; Maintenance; Mineral Oil/chemistry; Regression Analysis; Models, Statistical; Support Vector Machine
  15. Fahmy O, Khairul-Asri MG, Schubert T, Renninger M, Kübler H, Stenzl A, et al.
    Urol Oncol, 2018 02;36(2):54-59.
    PMID: 29196179 DOI: 10.1016/j.urolonc.2017.11.007
    PURPOSE: Currently, identified factors for urethral recurrence (UR) are based on individual reporting which has displayed controversy. In addition, risk of UR is one of the limiting factors to offer neobladder diversion during radical cystectomy (RC). We aim to systematically evaluate the incidence and risk factors of UR post-RC and its effect on survival.

    MATERIALS AND METHODS: A systematic online search was conducted according to PRISMA statement for publications reporting on UR after RC. From initial 802 results, 14 articles including 6169 patients were included finally after exclusion of ineligible studies.

    RESULTS: The incidence rate of UR was 4.4% (1.3%-13.7%). It was significantly lower with neobladder diversion (odds ratio = 0.44, 95% CI: 0.24-0.79, P = 0.006). Muscle invasion (hazard ratio = 1.18, 95% CI: 0.86-1.62, P = 0.31), carcinoma in situ (hazard ratio 0.97, 95% CI: 0.64-1.47, P = 0.88), prostatic stromal involvement (hazard ratio = 2.26, 95% CI: 0.01-627.75, P = 0.78), and prostatic urethral involvement (hazard ratio = 2.04, 95% CI: 0.20-20.80, P = 0.55) have no significant effect on UR. Men displayed tendency toward higher incidence of UR (odds ratio = 2.21, 95% CI: 0.96-5.06, P = 0.06). Absence of recurrence displayed tendency toward better disease specific survival, yet not significant (hazard ratio = 0.84, 95% CI: 0.66-1.08, P = 0.17). These results are limited by the retrospective nature of the included studies.

    CONCLUSION: Muscle invasion, carcinoma in situ and prostatic stromal or urethral involvement at time of RC have no significant effect on UR. Orthotopic neobladder is associated with a significant lower risk of UR after RC.

    MeSH terms: Urinary Bladder/pathology; Urinary Bladder/surgery; Urinary Bladder Neoplasms/pathology; Urinary Bladder Neoplasms/surgery*; Carcinoma, Transitional Cell/pathology; Carcinoma, Transitional Cell/surgery*; Humans; Neoplasm Recurrence, Local; Risk Factors; Urethra/pathology*; Cystectomy/methods*; Kaplan-Meier Estimate
  16. Amir A, Cheong FW, De Silva JR, Lau YL
    Parasit Vectors, 2018 01 23;11(1):53.
    PMID: 29361963 DOI: 10.1186/s13071-018-2617-y
    Every year, millions of people are burdened with malaria. An estimated 429,000 casualties were reported in 2015, with the majority made up of children under five years old. Early and accurate diagnosis of malaria is of paramount importance to ensure appropriate administration of treatment. This minimizes the risk of parasite resistance development, reduces drug wastage and unnecessary adverse reaction to antimalarial drugs. Malaria diagnostic tools have expanded beyond the conventional microscopic examination of Giemsa-stained blood films. Contemporary and innovative techniques have emerged, mainly the rapid diagnostic tests (RDT) and other molecular diagnostic methods such as PCR, qPCR and loop-mediated isothermal amplification (LAMP). Even microscopic diagnosis has gone through a paradigm shift with the development of new techniques such as the quantitative buffy coat (QBC) method and the Partec rapid malaria test. This review explores the different diagnostic tools available for childhood malaria, each with their characteristic strengths and limitations. These tools play an important role in making an accurate malaria diagnosis to ensure that the use of anti-malaria are rationalized and that presumptive diagnosis would only be a thing of the past.
    MeSH terms: Antimalarials/therapeutic use; Child; Child, Preschool; Diagnostic Errors/prevention & control; Diagnostic Tests, Routine/instrumentation*; Diagnostic Tests, Routine/methods*; Humans; Malaria/diagnosis*; Malaria/parasitology; Microscopy/methods; Sensitivity and Specificity; Nucleic Acid Amplification Techniques/methods; Molecular Diagnostic Techniques/instrumentation*; Molecular Diagnostic Techniques/methods*; Real-Time Polymerase Chain Reaction/methods
  17. Zhang YT, Lu DD, Chen JY, Yu B, Liang JB, Mi JD, et al.
    Animal, 2018 Oct;12(10):2056-2064.
    PMID: 29362016 DOI: 10.1017/S1751731118000058
    Fermented soybean meal (FSM), which has lower anti-nutritional factors and higher active enzyme, probiotic and oligosaccharide contents than its unfermented form, has been reported to improve the feeding value of soybean meal, and hence, the growth performance of piglets. However, whether FSM can affect the bacterial and metabolites in the large intestine of piglets remains unknown. This study supplemented wet-FSM (WFSM) or dry-FSM (DFSM) (5% dry matter basis) in the diet of piglets and investigated its effects on carbon and nitrogen metabolism in the piglets' large intestines. A total of 75 41-day-old Duroc×Landrace×Yorkshire piglets with an initial BW of 13.14±0.22 kg were used in a 4-week feeding trial. Our results showed that the average daily gain of piglets in the WFSM and DFSM groups increased by 27.08% and 14.58% and that the feed conversion ratio improved by 18.18% and 7.27%, respectively, compared with the control group. Data from the prediction gene function of Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) based on 16S ribosomal RNA (rRNA) sequencing showed that carbohydrate metabolism function families in the WFSM and DFSM groups increased by 3.46% and 2.68% and that the amino acid metabolism function families decreased by 1.74% and 0.82%, respectively, compared with the control group. These results were consistent with those of other metabolism studies, which showed that dietary supplementation with WFSM and DFSM increased the level of carbohydrate-related metabolites (e.g. 4-aminobutanoate, 5-aminopentanoate, lactic acid, mannitol, threitol and β-alanine) and decreased the levels of those related to protein catabolism (e.g. 1,3-diaminopropane, creatine, glycine and inosine). In conclusion, supplementation with the two forms of FSM improved growth performance, increased metabolites of carbohydrate and reduced metabolites of protein in the large intestine of piglets, and WFSM exhibited a stronger effect than DFSM.
    MeSH terms: Animals; Animal Feed*; Animal Nutritional Physiological Phenomena; Diet; Phylogeny; Soybeans*; Dietary Supplements
  18. Wong EHJ, Ng CG, Goh KL, Vadivelu J, Ho B, Loke MF
    Sci Rep, 2018 01 23;8(1):1409.
    PMID: 29362474 DOI: 10.1038/s41598-018-19697-0
    The biofilm-forming-capability of Helicobacter pylori has been suggested to be among factors influencing treatment outcome. However, H. pylori exhibit strain-to-strain differences in biofilm-forming-capability. Metabolomics enables the inference of spatial and temporal changes of metabolic activities during biofilm formation. Our study seeks to examine the differences in metabolome of low and high biofilm-formers using the metabolomic approach. Eight H. pylori clinical strains with different biofilm-forming-capability were chosen for metabolomic analysis. Bacterial metabolites were extracted using Bligh and Dyer method and analyzed by Liquid Chromatography/Quadrupole Time-of-Flight mass spectrometry. The data was processed and analyzed using the MassHunter Qualitative Analysis and the Mass Profiler Professional programs. Based on global metabolomic profiles, low and high biofilm-formers presented as two distinctly different groups. Interestingly, low-biofilm-formers produced more metabolites than high-biofilm-formers. Further analysis was performed to identify metabolites that differed significantly (p-value 
    MeSH terms: Bacterial Proteins/metabolism; Chromatography, Liquid; Helicobacter pylori/metabolism; Helicobacter pylori/physiology*; Biofilms/growth & development*; Principal Component Analysis; Tandem Mass Spectrometry; Metabolomics/methods*
  19. Wang SQ, Ying J, Zhang ML, Shi Y, Li Y, Xing ZJ, et al.
    Jpn J Nurs Sci, 2018 Oct;15(4):285-297.
    PMID: 29363255 DOI: 10.1111/jjns.12201
    AIM: With the rapid development of science and technology, the pace of life has accelerated. Health and life satisfaction issues of persons are gaining more attention. China, Japan, Malaysia, and Taiwan conducted international cooperative research on health of four regional populations. This research was a part of the study in mainland China, which aimed to explore health-related life satisfaction and its influencing factors on large samples in mainland China.

    METHODS: A random group of 1404 persons from universities, factories, companies, and elderly centers in Changchun completed a structured questionnaire. This study centered on life satisfaction indicators, which included the current whole life, income, family relationships, peer relationships, relationships with the neighbors, living environment, personal health, family health, spare time, and housework share. Other collected data included the Body Mass Index, blood pressure, self-rated health, Breslow's seven health practices, medical treatment within the past 6 months, physical examinations, General Health Questionnaire (GHQ)-12 Scale, social activities, networking relationships with persons around the community, social support, and sociodemographic variables. Associations between life satisfaction, demographics, and health-related variables were analyzed through a multiway ANOVA.

    RESULTS: The living environment and income of Chinese persons were related to their low life satisfaction. The multiway ANOVA showed that the independent relationship of self-rated health, regular physical examinations, GHQ-12 Scale, trust in the community, communication with the neighbors, education, and age related with life satisfaction accounting for 20.3% of the variance. Education and age showed interactive effects on life satisfaction.

    CONCLUSION: This study identified seven factors that influenced the life satisfaction of persons in mainland China. Life satisfaction can be enhanced through interventions to improve self-rated health, regular physical examinations, mental health, trust in the community, communication with the neighbors, education, and improvement in the health service.

    MeSH terms: Adolescent; Adult; Aged; Aged, 80 and over; China; Cross-Sectional Studies; Female; Humans; Male; Middle Aged; Personal Satisfaction*; Quality of Life; Surveys and Questionnaires; Social Support; Universities; Body Mass Index
  20. Lim WC, Khan AM
    BMC Genomics, 2018 01 19;19(Suppl 1):42.
    PMID: 29363421 DOI: 10.1186/s12864-017-4328-8
    BACKGROUND: Ebolavirus (EBOV) is responsible for one of the most fatal diseases encountered by mankind. Cellular T-cell responses have been implicated to be important in providing protection against the virus. Antigenic variation can result in viral escape from immune recognition. Mapping targets of immune responses among the sequence of viral proteins is, thus, an important first step towards understanding the immune responses to viral variants and can aid in the identification of vaccine targets. Herein, we performed a large-scale, proteome-wide mapping and diversity analyses of putative HLA supertype-restricted T-cell epitopes of Zaire ebolavirus (ZEBOV), the most pathogenic species among the EBOV family.

    METHODS: All publicly available ZEBOV sequences (14,098) for each of the nine viral proteins were retrieved, removed of irrelevant and duplicate sequences, and aligned. The overall proteome diversity of the non-redundant sequences was studied by use of Shannon's entropy. The sequences were predicted, by use of the NetCTLpan server, for HLA-A2, -A3, and -B7 supertype-restricted epitopes, which are relevant to African and other ethnicities and provide for large (~86%) population coverage. The predicted epitopes were mapped to the alignment of each protein for analyses of antigenic sequence diversity and relevance to structure and function. The putative epitopes were validated by comparison with experimentally confirmed epitopes.

    RESULTS & DISCUSSION: ZEBOV proteome was generally conserved, with an average entropy of 0.16. The 185 HLA supertype-restricted T-cell epitopes predicted (82 (A2), 37 (A3) and 66 (B7)) mapped to 125 alignment positions and covered ~24% of the proteome length. Many of the epitopes showed a propensity to co-localize at select positions of the alignment. Thirty (30) of the mapped positions were completely conserved and may be attractive for vaccine design. The remaining (95) positions had one or more epitopes, with or without non-epitope variants. A significant number (24) of the putative epitopes matched reported experimentally validated HLA ligands/T-cell epitopes of A2, A3 and/or B7 supertype representative allele restrictions. The epitopes generally corresponded to functional motifs/domains and there was no correlation to localization on the protein 3D structure. These data and the epitope map provide important insights into the interaction between EBOV and the host immune system.

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