Browse publications by year: 2018

  1. Asif U, Saleem Z, Yousaf M, Saeed H, Hashmi FK, Islam M, et al.
    Int J Psychiatry Clin Pract, 2018 Sep;22(3):177-183.
    PMID: 29082784 DOI: 10.1080/13651501.2017.1395055
    OBJECTIVE: The study was aimed to evaluate the gender specific response to adherence and occurrence of side effects among schizophrenic patients in Lahore, Pakistan.

    METHODS: A prospective study was performed for a period of 1 year among 180 newly diagnosed schizophrenics, aged 20-60 years to observe the symptoms, medication adherence and side effects. Morisky-Green-Levine Scale was used to evaluate medication adherence, LUNSER for side effects and PANSS to measure positive and negative symptoms. Data were analyzed using SPSS.

    RESULTS: Positive symptoms (Male: Baseline 36.14 vs. endpoint 23.58, Female: 35.29 vs. 23.74) and negative symptoms (Males 27.9 vs. 20.05, Females 28.41 vs. 20.2) of schizophrenia were equally reduced after a follow up of 1 year in both the genders. Male population suffered more accumulative side effects (11.4 in males vs. 6.40 in females), extrapyramidal symptoms such as tardive dyskinesia and tremors (1.21 in males vs. 0.57 in females) and other side effects as compared to women (p ≤ .005). Males were found poorly adherent to antipsychotic treatment than females (93.3% in males vs. 6.7% in females (p ≤ .005).

    CONCLUSIONS: Prescribing practices should not overlook sex specific factors like hormonal changes, altered brain morphology and socioeconomic factors that may be responsible for the difference in the response to the course of schizophrenia.

    MeSH terms: Adult; Female; Humans; Male; Middle Aged; Pakistan/epidemiology; Prospective Studies; Schizophrenia/drug therapy*; Schizophrenia/epidemiology; Schizophrenia/physiopathology*; Sex Factors; Antipsychotic Agents/adverse effects; Antipsychotic Agents/pharmacology*; Outcome Assessment (Health Care)/statistics & numerical data*; Medication Adherence/statistics & numerical data*; Young Adult
  2. Tan AH, Chong CW, Song SL, Teh CSJ, Yap IKS, Loke MF, et al.
    Mov Disord, 2018 01;33(1):174-176.
    PMID: 29083071 DOI: 10.1002/mds.27203
  3. Rajah R, Hassali MA, Lim CJ
    Ann Pharmacother, 2018 04;52(4):345-351.
    PMID: 29078711 DOI: 10.1177/1060028017739031
    BACKGROUND: Health care practitioners carry a tremendous responsibility to differentiate the varying need of information and customized communication according to a patient's health literacy (HL) level.

    OBJECTIVES: To assess and compare the HL communication practices among physicians, pharmacists, and nurses serving at public hospitals in Penang, Malaysia.

    METHODS: A pretested, self-administered questionnaire was used to collect data from study participants of 6 public hospitals using stratified sampling. Descriptive and inferential statistics used to analyze the data with level of significance was set at P < 0.05.

    RESULTS: Of 600 distributed questionnaires, 526 (87.6%) were adequately filled and returned. Almost 19.0% (n = 98) of the respondents admitted that they did not frequently use simple language and avoid medical jargon during communication with patients. Only about half of the respondents reported frequently using other HL communication practices that include handing out education material to patients (52.2%, n = 275), asking the patient to repeat information (58.9%, n = 310), and asking patients' caregivers to be present during explanation (57.4%, n = 302). Comparatively, drawing pictures to ease patients' understanding (40.1%, n = 211) was the less-frequently practiced HL communication techniques. Health practitioners in the age group >41 years ( P = 0.046), serving 10 years and more ( P = 0.03) and those who have heard the term or concept of HL ( P = 0.004) have statistically significantly higher mean score of HL communication practices than other groups.

    CONCLUSIONS: The gap in the HL communication practices among physicians, pharmacists, and nurses warrants educational intervention, and standardized HL communication techniques guidelines are needed in the near future.

    MeSH terms: Adult; Female; Hospitals, Public; Humans; Malaysia; Male; Middle Aged; Nurses*; Pharmacists*; Physicians*; Professional-Patient Relations*; Surveys and Questionnaires; Comprehension; Young Adult; Health Literacy*; Health Communication*
  4. Hannan MA, Akhtar M, Begum RA, Basri H, Hussain A, Scavino E
    Waste Manag, 2018 Jan;71:31-41.
    PMID: 29079284 DOI: 10.1016/j.wasman.2017.10.019
    Waste collection widely depends on the route optimization problem that involves a large amount of expenditure in terms of capital, labor, and variable operational costs. Thus, the more waste collection route is optimized, the more reduction in different costs and environmental effect will be. This study proposes a modified particle swarm optimization (PSO) algorithm in a capacitated vehicle-routing problem (CVRP) model to determine the best waste collection and route optimization solutions. In this study, threshold waste level (TWL) and scheduling concepts are applied in the PSO-based CVRP model under different datasets. The obtained results from different datasets show that the proposed algorithmic CVRP model provides the best waste collection and route optimization in terms of travel distance, total waste, waste collection efficiency, and tightness at 70-75% of TWL. The obtained results for 1 week scheduling show that 70% of TWL performs better than all node consideration in terms of collected waste, distance, tightness, efficiency, fuel consumption, and cost. The proposed optimized model can serve as a valuable tool for waste collection and route optimization toward reducing socioeconomic and environmental impacts.
    MeSH terms: Algorithms*; Costs and Cost Analysis; Waste Management/economics*; Solid Waste*
  5. Harvey BJ, Thomas W
    Steroids, 2018 05;133:67-74.
    PMID: 29079406 DOI: 10.1016/j.steroids.2017.10.009
    Aldosterone acts through the mineralocorticoid receptor (MR) to modulate gene expression in target tissues. In the kidney, the principal action of aldosterone is to promote sodium conservation in the distal nephron and so indirectly enhance water conservation under conditions of hypotension. Over the last twenty years the rapid activation of protein kinase signalling cascades by aldosterone has been described in various tissues. This review describes the integration of rapid protein kinase D signalling responses with the non-genomic actions of aldosterone and transcriptional effects of MR activation.
    MeSH terms: Aldosterone/metabolism*; Animals; Electrolytes/metabolism*; Humans; Protein Kinases/metabolism*; Sodium/metabolism; Signal Transduction*; Receptors, Mineralocorticoid/metabolism
  6. AlMatar M, Makky EA, Yakıcı G, Var I, Kayar B, Köksal F
    Pharmacol Res, 2018 02;128:288-305.
    PMID: 29079429 DOI: 10.1016/j.phrs.2017.10.011
    Tuberculosis (TB) presently accounts for high global mortality and morbidity rates, despite the introduction four decades ago of the affordable and efficient four-drugs (isoniazid, rifampicin, pyrazinamide and ethambutol). Thus, a strong need exists for new drugs with special structures and uncommon modes of action to effectively overcome M. tuberculosis. Within this scope, antimicrobial peptides (AMPs), which are small, cationic and amphipathic peptides that comprise a section of the innate immune system, are currently the leading potential agents for the treatment of TB. Many studies have recently illustrated the capability of anti-mycobacterial peptides to disrupt the normal mycobacterial cell wall function through various modes, thereby interacting with the intracellular targets, as well as encompassing nucleic acids, enzymes and organelles. This review presents a wide array of antimicrobial activities, alongside the associated properties of the AMPs that could be utilized as potential agents in therapeutic tactics for TB treatment.
    MeSH terms: Animals; Anti-Infective Agents/pharmacology; Antitubercular Agents/pharmacology; Antitubercular Agents/therapeutic use*; Antitubercular Agents/chemistry; Humans; Mycobacterium/drug effects; Tuberculosis/drug therapy*; Drug Delivery Systems; Antimicrobial Cationic Peptides/pharmacology; Antimicrobial Cationic Peptides/therapeutic use*; Antimicrobial Cationic Peptides/chemistry
  7. Salama M, Elhussiny M, Magdy A, Omran AG, Alsayed A, Ashry R, et al.
    Metab Brain Dis, 2018 04;33(2):583-587.
    PMID: 29080085 DOI: 10.1007/s11011-017-0137-7
    Tauopathy comprises a group of disorders caused by abnormal aggregates of tau protein. In these disorders phosphorylated tau protein tends to accumulate inside neuronal cells (soma) instead of the normal axonal distribution of tau. A suggested therapeutic strategy for tauopathy is to induce autophagy to increase the ability to get rid of the unwanted tau aggregates. One of the key controllers of autophagy is mTOR. Blocking mTOR leads to stimulation of autophagy. Recently, unravelling molecular structure of mTOR showed that it is formed of two subunits: mTORC1/C2. So, blocking both subunits of mTOR seems more attractive as it will explore all abilities of mTOR molecule. In the present study, we report using pp242 which is a dual mTORC1/C2 blocker in cellular model of tauopathy using LUHMES cell line. Adding fenazaquin to LUHMES cells induced tauopathy in the form of increased phospho tau aggregates. Moreover, fenazaquin treated cells showed the characteristic somatic redistribution of tau. PP242 use in the present tauopathy model reversed the pathology significantly without observable cellular toxicity for the used dosage of 1000 nM. The present study suggests the possible use of pp242 as a dual mTOR blocker to treat tauopathy.
    MeSH terms: Adolescent; Adult; Autophagy/drug effects; Female; Humans; Indoles/pharmacology*; Male; Middle Aged; Purines/pharmacology*; tau Proteins/metabolism*; Apoptosis/drug effects; Cell Line, Tumor; Protein Kinase Inhibitors/pharmacology; Cell Proliferation/drug effects; Young Adult; TOR Serine-Threonine Kinases/drug effects; TOR Serine-Threonine Kinases/metabolism
  8. Abate A, Correa-Baena JP, Saliba M, Su'ait MS, Bella F
    Chemistry, 2018 Mar 02;24(13):3083-3100.
    PMID: 29080219 DOI: 10.1002/chem.201704507
    Despite the fact that perovskite solar cells (PSCs) have a strong potential as a next-generation photovoltaic technology due to continuous efficiency improvements and the tunable properties, some important obstacles remain before industrialization is feasible. For example, the selection of low-cost or easy-to-prepare materials is essential for back-contacts and hole-transporting layers. Likewise, the choice of conductive substrates, the identification of large-scale manufacturing techniques as well as the development of appropriate aging protocols are key objectives currently under investigation by the international scientific community. This Review analyses the above aspects and highlights the critical points that currently limit the industrial production of PSCs and what strategies are emerging to make these solar cells the leaders in the photovoltaic field.
  9. Thorlacius L, Garg A, Ingram JR, Villumsen B, Theut Riis P, Gottlieb AB, et al.
    Br J Dermatol, 2018 03;178(3):715-721.
    PMID: 29080368 DOI: 10.1111/bjd.16093
    BACKGROUND: A core outcomes set (COS) is an agreed minimum set of outcomes that should be measured and reported in all clinical trials for a specific condition. Hidradenitis suppurativa (HS) has no agreed-upon COS. A central aspect in the COS development process is to identify a set of candidate outcome domains from a long list of items. Our long list had been developed from patient interviews, a systematic review of the literature and a healthcare professional survey, and initial votes had been cast in two e-Delphi surveys. In this manuscript, we describe two in-person consensus meetings of Delphi participants designed to ensure an inclusive approach to generation of domains from related items.

    OBJECTIVES: To consider which items from a long list of candidate items to exclude and which to cluster into outcome domains.

    METHODS: The study used an international and multistakeholder approach, involving patients, dermatologists, surgeons, the pharmaceutical industry and medical regulators. The study format was a combination of formal presentations, small group work based on nominal group theory and a subsequent online confirmation survey.

    RESULTS: Forty-one individuals from 13 countries and four continents participated. Nine items were excluded and there was consensus to propose seven domains: disease course, physical signs, HS-specific quality of life, satisfaction, symptoms, pain and global assessments.

    CONCLUSIONS: The HISTORIC consensus meetings I and II will be followed by further e-Delphi rounds to finalize the core domain set, building on the work of the in-person consensus meetings.

    MeSH terms: Clinical Trials as Topic; Consensus Development Conferences as Topic; Delphi Technique; Humans; Global Health; Treatment Outcome; Hidradenitis Suppurativa/therapy*; Consensus
  10. Leng KM, Vijayarathna S, Jothy SL, Sasidharan S, Kanwar JR
    Biomed Pharmacother, 2018 Jan;97:26-37.
    PMID: 29080455 DOI: 10.1016/j.biopha.2017.10.121
    Lactoferrin has been known to have antimicrobial properties. This research was conducted to investigate the toxicity of Alginate/EUDRAGIT® S 100-enclosed chitosan-calcium phosphate-loaded Fe-bLf nanocapsules (NCs) by in vitro and in vivo assays. Brine shrimp lethality assay showed that the LC50 value of NCs was more than 1mg/mL which indicated that NCs was not toxic to Brine shrimp. However, the LC50 values for the positive control potassium dichromate at 24h is 64.15μg/mL, which was demostrated the toxic effect against the brine shrimp. MTT cytotoxicity assay also revealed that NCs was not toxic against non-cancerous Vero cell line with IC50 values of 536μg/mL. Genotoxicity studies by comet assay on Vero cells revealed that NCs exerted no significant genotoxic at 100μg/mL without tail or shorter comet tail. Allium cepa root assay carried out at 125, 250, 500 and 1000μg/mL for 24h revealed that the NCs was destitute of significant genotoxic effect under experimental conditions. The results show that there is no significant difference (p>0.05) in mitotic index between the deionized water and NCs treated Allium cepa root tip cells. In conclusion, no toxicity was observed in NCs in this study. Therefore, nontoxic NCs has the good potential to develop as a therapeutic agent.
    MeSH terms: Alginates/administration & dosage; Alginates/toxicity*; Allium/cytology; Allium/drug effects; Animals; Artemia; Calcium Phosphates/administration & dosage; Calcium Phosphates/toxicity*; Cattle; Cell Survival/drug effects; Cell Survival/physiology; Cercopithecus aethiops; Dose-Response Relationship, Drug; Hexuronic Acids/administration & dosage; Hexuronic Acids/toxicity; Iron/administration & dosage; Iron/toxicity; Lactoferrin/administration & dosage; Lactoferrin/toxicity*; Lethal Dose 50; Mitosis/drug effects; Mitosis/physiology; Polymethacrylic Acids/administration & dosage; Polymethacrylic Acids/toxicity*; Vero Cells; Glucuronic Acid/administration & dosage; Glucuronic Acid/toxicity; Chitosan/administration & dosage; Chitosan/toxicity*
  11. Othman M, Latif MT, Mohamed AF
    Ecotoxicol Environ Saf, 2018 Feb;148:293-302.
    PMID: 29080527 DOI: 10.1016/j.ecoenv.2017.10.034
    This study intends to determine the health impacts from two office life cycles (St.1 and St.2) using life cycle assessment (LCA) and health risk assessment of indoor metals in coarse particulates (particulate matter with diameters of less than 10µm). The first building (St.1) is located in the city centre and the second building (St.2) is located within a new development 7km away from the city centre. All life cycle stages are considered and was analysed using SimaPro software. The trace metal concentrations were determined by inductively couple plasma-mass spectrometry (ICP-MS). Particle deposition in the human lung was estimated using the multiple-path particle dosimetry model (MPPD). The results showed that the total human health impact for St.1 (0.027 DALY m-2) was higher than St.2 (0.005 DALY m-2) for a 50-year lifespan, with the highest contribution from the operational phase. The potential health risk to indoor workers was quantified as a hazard quotient (HQ) for non-carcinogenic elements, where the total values for ingestion contact were 4.38E-08 (St.1) and 2.59E-08 (St.2) while for dermal contact the values were 5.12E-09 (St.1) and 2.58E-09 (St.2). For the carcinogenic risk, the values for dermal and ingestion routes for both St.1 and St.2 were lower than the acceptable limit which indicated no carcinogenic risk. Particle deposition for coarse particles in indoor workers was concentrated in the head, followed by the pulmonary region and tracheobronchial tract deposition. The results from this study showed that human health can be significantly affected by all the processes in office building life cycle, thus the minimisation of energy consumption and pollutant exposures are crucially required.
    MeSH terms: Air Pollutants/analysis; Dust/analysis; Environmental Monitoring/methods; Humans; Metals/analysis*; Particle Size; Occupational Health; Occupational Exposure/analysis*; Air Pollution, Indoor/analysis; Particulate Matter/analysis*; Particulate Matter/chemistry; Health Impact Assessment*
  12. Lau AS, Yanagisawa N, Hor YY, Lew LC, Ong JS, Chuah LO, et al.
    Benef Microbes, 2018 Jan 29;9(1):61-70.
    PMID: 29065707 DOI: 10.3920/BM2017.0063
    This 10-months randomised, double-blind, parallel and placebo-controlled study evaluated the effects of Bifidobacterium longum BB536 on diarrhoea and/or upper respiratory illnesses in 520 healthy Malaysian pre-school children aged 2-6 years old. The subjects randomly received a one-gram sachet containing either BB536 (5×109 cfu) or placebo daily. Data analysis was performed on 219 subjects who fully complied over 10-months (placebo n=110, BB536 n=109). While BB536 did not exert significant effects against diarrhoea in children, Poisson regression with generalised estimating equations model indicated significant intergroup difference in the mean number of times of respiratory illnesses over 10 months. The duration of sore throat was reduced by 46% (P=0.018), with marginal reduction for duration of fever (reduced by 27%, P=0.084), runny nose (reduced by 15%, P=0.087) and cough (reduced by 16%, P=0.087) as compared to the placebo. Principal coordinate analysis at genus level of the gut microbiota revealed significant differences between 0 and 10 months in the BB536 group (P<0.01) but not in placebo group (P>0.05). The abundance of the genus Faecalibacterium which is associated with anti-inflammatory and immuno-modulatory properties was significantly higher in the BB536 group (P<0.05) compared to the placebo group. Altogether, our present study illustrated the potential protective effects of BB536 against upper respiratory illnesses in pre-school Malaysian children, with gut microbiota modulating properties.
    MeSH terms: Child; Child, Preschool; Double-Blind Method; Feces/microbiology; Female; Humans; Malaysia; Male; Placebos; Respiratory Tract Infections/microbiology*; Respiratory Tract Infections/prevention & control; Multivariate Analysis; Probiotics/pharmacology*; Gastrointestinal Tract/drug effects; Gastrointestinal Tract/microbiology*; Microbiota/drug effects*; Healthy Volunteers; Bifidobacterium longum/physiology*
  13. Lee PF, Kan DPX, Croarkin P, Phang CK, Doruk D
    J Clin Neurosci, 2018 Jan;47:315-322.
    PMID: 29066239 DOI: 10.1016/j.jocn.2017.09.030
    BACKGROUND: There is an unmet need for practical and reliable biomarkers for mood disorders in young adults. Identifying the brain activity associated with the early signs of depressive disorders could have important diagnostic and therapeutic implications. In this study we sought to investigate the EEG characteristics in young adults with newly identified depressive symptoms.

    METHODS: Based on the initial screening, a total of 100 participants (n = 50 euthymic, n = 50 depressive) underwent 32-channel EEG acquisition. Simple logistic regression and C-statistic were used to explore if EEG power could be used to discriminate between the groups. The strongest EEG predictors of mood using multivariate logistic regression models.

    RESULTS: Simple logistic regression analysis with subsequent C-statistics revealed that only high-alpha and beta power originating from the left central cortex (C3) have a reliable discriminative value (ROC curve >0.7 (70%)) for differentiating the depressive group from the euthymic group. Multivariate regression analysis showed that the single most significant predictor of group (depressive vs. euthymic) is the high-alpha power over C3 (p = 0.03).

    CONCLUSION: The present findings suggest that EEG is a useful tool in the identification of neurophysiological correlates of depressive symptoms in young adults with no previous psychiatric history.

    SIGNIFICANCE: Our results could guide future studies investigating the early neurophysiological changes and surrogate outcomes in depression.

    MeSH terms: Adolescent; Adult; Brain/physiopathology*; Depression/diagnosis*; Depression/physiopathology*; Electroencephalography*; Female; Humans; Male; ROC Curve; Sensitivity and Specificity; Young Adult
  14. Joseph P, Yusuf S, Lee SF, Ibrahim Q, Teo K, Rangarajan S, et al.
    Heart, 2018 04;104(7):581-587.
    PMID: 29066611 DOI: 10.1136/heartjnl-2017-311609
    OBJECTIVE: To evaluate the performance of the non-laboratory INTERHEART risk score (NL-IHRS) to predict incident cardiovascular disease (CVD) across seven major geographic regions of the world. The secondary objective was to evaluate the performance of the fasting cholesterol-based IHRS (FC-IHRS).

    METHODS: Using measures of discrimination and calibration, we tested the performance of the NL-IHRS (n=100 475) and FC-IHRS (n=107 863) for predicting incident CVD in a community-based, prospective study across seven geographic regions: South Asia, China, Southeast Asia, Middle East, Europe/North America, South America and Africa. CVD was defined as the composite of cardiovascular death, myocardial infarction, stroke, heart failure or coronary revascularisation.

    RESULTS: Mean age of the study population was 50.53 (SD 9.79) years and mean follow-up was 4.89 (SD 2.24) years. The NL-IHRS had moderate to good discrimination for incident CVD across geographic regions (concordance statistic (C-statistic) ranging from 0.64 to 0.74), although recalibration was necessary in all regions, which improved its performance in the overall cohort (increase in C-statistic from 0.69 to 0.72, p<0.001). Regional recalibration was also necessary for the FC-IHRS, which also improved its overall discrimination (increase in C-statistic from 0.71 to 0.74, p<0.001). In 85 078 participants with complete data for both scores, discrimination was only modestly better with the FC-IHRS compared with the NL-IHRS (0.74 vs 0.73, p<0.001).

    CONCLUSIONS: External validations of the NL-IHRS and FC-IHRS suggest that regionally recalibrated versions of both can be useful for estimating CVD risk across a diverse range of community-based populations. CVD prediction using a non-laboratory score can provide similar accuracy to laboratory-based methods.

    MeSH terms: Adult; Female; Humans; International Cooperation; Male; Middle Aged; Prognosis; Research Design; Risk Factors; Global Health; Reproducibility of Results; Risk Assessment/methods*
  15. Mohamad Hanapi NS, Sanagi MM, Ismail AK, Saim N, Wan Ibrahim WN, Wan Ibrahim WA, et al.
    J Chromatogr Sci, 2018 Feb 01;56(2):166-176.
    PMID: 29069322 DOI: 10.1093/chromsci/bmx092
    Two-phase micro-electrodriven membrane extraction (EME) procedure for the pre-concentration of selected non-steroidal anti-inflammatory drugs (NSAIDs) in aquatic matrices was investigated. Agarose film was used as interface between donor and acceptor phase in EME which allowed for selective extraction of the analytes prior to high performance liquid chromatography-ultraviolet detection. Charged analytes were transported from basic aqueous sample solution through agarose film into 1-octanol as an acceptor phase at 9 V potential. Response surface methodology in conjunction with the central composite design showed good correlations between extraction time and applied voltage (R2 > 0.9358). Under optimized extraction conditions, the method showed good linearity in the concentration range of 0.5-500 μg L-1 with coefficients of determination, r2≥ 0.9942 and good limits of detection (0.14-0.42 μg L-1) and limits of quantification (0.52-1.21 μg L-1). The results also showed high enrichment factors (62-86) and good relative recoveries (72-114%) with acceptable reproducibilities (RSDs ≤ 7.5% n = 3). The method was successfully applied to the determination of NSAIDs from tap water and river water samples. The proposed method proved to be rapid, simple and requires low voltage and minute amounts of organic solvent, thus environmentally friendly.
    MeSH terms: Chromatography, High Pressure Liquid/methods*; Equipment Design; Reproducibility of Results; Linear Models; 1-Octanol; Electrochemical Techniques/instrumentation; Electrochemical Techniques/methods; Limit of Detection
  16. Kengkla K, Kongpakwattana K, Saokaew S, Apisarnthanarak A, Chaiyakunapruk N
    J Antimicrob Chemother, 2018 Jan 01;73(1):22-32.
    PMID: 29069421 DOI: 10.1093/jac/dkx368
    Objectives: To comprehensively compare and rank the efficacy and safety of available treatment options for patients with MDR and XDR Acinetobacter baumannii (AB) infection.

    Methods: We searched PubMed, Embase and the Cochrane register of trials systematically for studies that examined treatment options for patients with MDR- and XDR-AB infections until April 2016. Network meta-analysis (NMA) was performed to estimate the risk ratio (RR) and 95% CI from both direct and indirect evidence. Primary outcomes were clinical cure and microbiological cure. Secondary outcomes were all-cause mortality and nephrotoxic and non-nephrotoxic adverse events.

    Results: A total of 29 studies with 2529 patients (median age 60 years; 65% male; median APACHE II score 19.0) were included. Although there were no statistically significant differences between treatment options, triple therapy with colistin, sulbactam and tigecycline had the highest clinical cure rate. Colistin in combination with sulbactam was associated with a significantly higher microbiological cure rate compared with colistin in combination with tigecycline (RR 1.23; 95% CI 1.03-1.47) and colistin monotherapy (RR 1.21; 95% CI 1.06-1.38). No significant differences in all-cause mortality were noted between treatment options. Tigecycline-based therapy also appeared less effective for achieving a microbiological cure and is not appropriate for treating bloodstream MDR- and XDR-AB infections.

    Conclusions: Combination therapy of colistin with sulbactam demonstrates superiority in terms of microbiological cure with a safety profile similar to that of colistin monotherapy. Thus, our findings support the use of this combination as a treatment for MDR- and XDR-AB infections.

    MeSH terms: Acinetobacter Infections/drug therapy*; Acinetobacter Infections/microbiology; Anti-Bacterial Agents/therapeutic use*; Colistin/adverse effects; Colistin/therapeutic use*; Drug Therapy, Combination; Female; Humans; Male; Microbial Sensitivity Tests; Middle Aged; Minocycline/adverse effects; Minocycline/analogs & derivatives*; Minocycline/therapeutic use; Sulbactam/adverse effects; Sulbactam/therapeutic use*; Treatment Outcome; Drug Resistance, Multiple, Bacterial; Acinetobacter baumannii/drug effects*; Pneumonia, Ventilator-Associated/drug therapy; Pneumonia, Ventilator-Associated/microbiology
  17. Chong FY, Jenstad LM
    Disabil Rehabil Assist Technol, 2018 08;13(6):600-608.
    PMID: 29072542 DOI: 10.1080/17483107.2017.1392619
    PURPOSE: Single-microphone noise reduction (SMNR) is implemented in hearing aids to suppress background noise. The purpose of this article was to provide a critical review of peer-reviewed studies in adults and children with sensorineural hearing loss who were fitted with hearing aids incorporating SMNR.

    METHOD: Articles published between 2000 and 2016 were searched in PUBMED and EBSCO databases.

    RESULTS: Thirty-two articles were included in the final review. Most studies with adult participants showed that SMNR has no effect on speech intelligibility. Positive results were reported for acceptance of background noise, preference, and listening effort. Studies of school-aged children were consistent with the findings of adult studies. No study with infants or young children of under 5 years old was found. Recent studies on noise-reduction systems not yet available in wearable hearing aids have documented benefits of noise reduction on memory for speech processing for older adults.

    CONCLUSIONS: This evidence supports the use of SMNR for adults and school-aged children when the aim is to improve listening comfort or reduce listening effort. Future research should test SMNR with infants and children who are younger than 5 years of age. Further development, testing, and clinical trials should be carried out on algorithms not yet available in wearable hearing aids. Testing higher cognitive level for speech processing and learning of novel sounds or words could show benefits of advanced signal processing features. These approaches should be expanded to other populations such as children and younger adults. Implications for rehabilitation The review provides a quick reference for students and clinicians regarding the efficacy and effectiveness of SMNR in wearable hearing aids. This information is useful during counseling session to build a realistic expectation among hearing aid users. Most studies in the adult population suggest that SMNR may provide some benefits to adult listeners in terms of listening comfort, acceptance of background noise, and release of cognitive load in a complex listening condition. However, it does not improve speech intelligibility. Studies that examined SMNR in the paediatric population suggest that SMNR may benefit older school-aged children, aged between 10 and 12 years old. The evidence supports the use of SMNR for adults and school-aged children when the aim is to improve listening comfort or reduce listening effort.

    MeSH terms: Adult; Child; Hearing Aids*; Hearing Loss, Sensorineural/rehabilitation*; Humans; Noise; Speech Intelligibility
  18. Ali A, Yeoh WK, Forney C, Siddiqui MW
    Crit Rev Food Sci Nutr, 2018;58(15):2632-2649.
    PMID: 29072844 DOI: 10.1080/10408398.2017.1339180
    Minimally processed fresh produce is one of the fastest growing segments of the food industry due to consumer demand for fresh, healthy, and convenient foods. However, mechanical operations of cutting and peeling induce the liberation of cellular contents at the site of wounding that can promote the growth of pathogenic and spoilage microorganisms. In addition, rates of tissue senescence can be enhanced resulting in reduced storage life of fresh-cut fruits and vegetables. Chlorine has been widely adopted in the disinfection and washing procedures of fresh-cut produce due to its low cost and efficacy against a broad spectrum of microorganisms. Continuous replenishment of chlorine in high organic wash water can promote the formation of carcinogenic compounds such as trihalomethanes, which threaten human and environmental health. Alternative green and innovative chemical and physical postharvest treatments such as ozone, electrolyzed water, hydrogen peroxide, ultraviolet radiation, high pressure processing, and ultrasound can achieve similar reduction of microorganisms as chlorine without the production of harmful compounds or compromising the quality of fresh-cut produce.
    MeSH terms: Disinfection; Food Microbiology; Fruit*; Time Factors; Vegetables*; Food Storage/methods*
  19. Xu H, Thomas RK, Penfold J, Li PX, Ma K, Welbourne RJL, et al.
    J Colloid Interface Sci, 2018 Feb 15;512:231-238.
    PMID: 29073464 DOI: 10.1016/j.jcis.2017.10.064
    The methyl ester sulfonates represent a promising group of anionic surfactants which have the potential for improved performance and biocompatibility in a range of applications. Their solution properties, in particular their tolerance to hard water, suggests that surface ordering may occur in the presence of multi-valent counterion. Understanding their adsorption properties in a range of different circumstances is key to the exploitation of their potential. Neutron reflectivity and surface tension have been used to characterise the adsorption at the air-aqueous solution interface of the anionic surfactant sodium tetradecanoic 2-sulfo 1-methyl ester, C14MES, in the absence of electrolyte and in the presence of mono, di, and tri-valent counterions, Na+, Ca2+, and Al3+. In particular the emphasis has been on exploring the tendency to form layered structures at the interface. In the absence of electrolyte and in the presence of NaCl and CaCl2 and AlCl3 at low concentrations monolayer adsorption is observed, and the addition of electrolyte results in enhanced adsorption. In the presence of NaCl and CaCl2 only monolayer adsorption is observed. However at higher AlCl3 concentrations surface multilayer formation is observed, in which the number of bilayers at the surface depends upon the surfactant and AlCl3 concentrations.
    MeSH terms: Adsorption; Chlorides; Electrolytes; Neutrons; Sodium; Surface Tension; Surface-Active Agents; Water; Aluminum Compounds
  20. Kadier A, Kalil MS, Chandrasekhar K, Mohanakrishna G, Saratale GD, Saratale RG, et al.
    Bioelectrochemistry, 2018 Feb;119:211-219.
    PMID: 29073521 DOI: 10.1016/j.bioelechem.2017.09.014
    Microbial electrolysis cells (MECs) are perceived as a potential and promising innovative biotechnological tool that can convert carbon-rich waste biomass or wastewater into hydrogen (H2) or other value-added chemicals. Undesired methane (CH4) producing H2 sinks, including methanogens, is a serious challenge faced by MECs to achieve high-rate H2 production. Methanogens can consume H2 to produce CH4 in MECs, which has led to a drop of H2 production efficiency, H2 production rate (HPR) and also a low percentage of H2 in the produced biogas. Organized inference related to the interactions of microbes and potential processes has assisted in understanding approaches and concepts for inhibiting the growth of methanogens and profitable scale up design. Thus, here in we review the current developments and also the improvements constituted for the reduction of microbial H2 losses to methanogens. Firstly, the greatest challenge in achieving practical applications of MECs; undesirable microorganisms (methanogens) growth and various studied techniques for eliminating and reducing methanogens activities in MECs were discussed. Additionally, this extensive review also considers prospects for stimulating future research that could help to achieve more information and would provide the focus and path towards MECs as well as their possibilities for simultaneously generating H2 and waste remediation.
    MeSH terms: Bioelectric Energy Sources*; Electrodes; Electrolysis/methods*; Hydrogen/metabolism*; Methane/biosynthesis*; Bioreactors/microbiology
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