Browse publications by year: 2018

  1. Jamaliah Jahim, Rafiqqah Mohamad Sabri, Nurleyna Yunus
    MyJurnal
    In this research, sago mill effluent was treated using anaerobic sequencing batch reactor (ASBR). Seven HRT from 10 to 1.5 days were tested to evaluate the methane production from sago mill effluent. The findings revealed the highest methane production rate was found at 1.288 L CH4/L reactor. d under HRT of 2 days The results showed that COD removals decreased from 70% to 47% as HRT was reduced from 10 to 2 days. The HRT 1.5 days was found critical for the studied system, which leads to decreased in methane production, yield and COD removal. Overall, ASBR was capable to treat sago mill effluent in producing methane by means of anaerobic digestion.
    MeSH terms: Methane; Research; Bioreactors
  2. Ali Md Nadzalan, Muhammad Hannan Sazali, Mohamad Shahrul Azzfar
    MyJurnal
    As a way to enhance performance in sports, apart from in-field or in court training, athletes are recommended to adopt resistance training into their training routine. As an exercise that needs the performer to split their legs, lunge is suggested to be included as an exercise in a training session. Various researches had been conducted on lunge and several findings showed different methods or protocols of lunge affect the kinematics, kinetics muscle activation and fascicle behaviour response during the exercise. Although not much study conducted on the chronic adaptations, the existing studies suggested that performers should well plan the training protocols as this will cause different training adaptations.
    MeSH terms: Acclimatization; Adaptation, Physiological; Biomechanical Phenomena; Humans; Kinetics; Musculoskeletal Physiological Phenomena; Sports; Resistance Training; Athletes
  3. Noorul Aini Sulaiman, Nur Zazarina Ramly, Shuhaila Mat-Sharani, Nor Muhammad Mahadi
    MyJurnal
    Protease is an enzyme that catalysed the hydrolysis of protein into peptide. Application of protease in industry has been linked with cost effective substrates and complex of enzyme-substrate stability. Molecular docking approach has identified casein as a preference substrates. However, lack of data on casein mode of binding to protease and enzyme stability represents a limitation for its production and structural optimization. In this study, we have used a molecular dynamic (MD) to examine the stability of complex enzyme-substrate of protease from Bacillus lehensis G1. The 3D structure of protease (BleG1_1979) was docked with substrate casein using AutoDock Vina. Structural analysis of the substrate-binding cleft revealed a binding site of casein was predominantly at the hydrophobic region of BleG1_1979. The MD of complex BleG1_1979-casein was tested with two temperatures; 298 K and 310 K using GROMACS v5.1.4. MD simulation showed a stable behaviour of BleG1_1979 over the 20 ns simulation period. The molecular docking and MD simulation suggested that the production of protease from B. lehensis G1 by utilization of casein and the stability of complex protease-casein could be a potential application to generate a cost effective enzyme to be develop for industrial use.
    MeSH terms: Bacillus; Binding Sites; Caseins; Enzyme Stability; Hydrolysis; Endopeptidases; Peptides; Temperature; Molecular Dynamics Simulation; Hydrophobic and Hydrophilic Interactions; Molecular Docking Simulation
  4. Chuah KH, Mahadeva S
    J Neurogastroenterol Motil, 2018 Oct 01;24(4):536-543.
    PMID: 30153722 DOI: 10.5056/jnm18064
    Culture forms an integral aspect of environmental factors which influences disease presentation and clinical outcomes in functionalgastrointestinal disorders (FGIDs). In this review, the role of culture in FGIDs in the East is briefly explored with regards to symptompresentation and diagnostic issues, lifestyle and cultural habits, epidemiology, and healthcare seeking behavior. In both functionaldyspepsia and irritable bowel syndrome, symptom presentation and disease sub-typing in Asians are known to differ from their Western counterparts, possibly relating to cultural dietary practices and from cultural perception of symptoms. Dietary patterns, together with defecating practices are explored as factors contributing to a lower prevalence of constipation in the East. An urban-rural difference in the prevalence of FGIDs in Asia is attributed to a change in dietary patterns in rapidly developing urban communities, together with an increased level of psychological morbidity. Lastly, cultural attitudes towards traditional/local remedies, variation in healthcare systems, anxiety regarding organic disease, and religious practices have been shown to influence healthcare seeking behavior among FGID patients in the East.
  5. Yu J, Lv X, Yang Z, Gao S, Li C, Cai Y, et al.
    Viruses, 2018 10 19;10(10).
    PMID: 30347642 DOI: 10.3390/v10100572
    Nipah disease is a highly fatal zoonosis which is caused by the Nipah virus. The Nipah virus is a BSL-4 virus with fruit bats being its natural host. It is mainly prevalent in Southeast Asia. The virus was first discovered in 1997 in Negeri Sembilan, Malaysia. Currently, it is mainly harmful to pigs and humans with a high mortality rate. This study describes the route of transmission of the Nipah virus in different countries and analyzes the possibility of the primary disease being in China and the method of its transmission to China. The risk factors are analyzed for different susceptible populations to Nipah disease. The aim is to improve people's risk awareness and prevention and control of the disease and reduce its risk of occurring and spreading in China.
    MeSH terms: Animals; China/epidemiology; Humans; Risk Factors; Swine; Swine Diseases/epidemiology; Swine Diseases/virology*; Zoonoses/epidemiology; Zoonoses/virology; Nipah Virus/genetics; Nipah Virus/isolation & purification*; Nipah Virus/physiology; Henipavirus Infections/epidemiology*; Henipavirus Infections/virology*
  6. Abdullah NH, Ismail S
    Molecules, 2018 Oct 19;23(10).
    PMID: 30347696 DOI: 10.3390/molecules23102696
    The co-use of conventional drug and herbal medicines may lead to herb-drug interaction via modulation of drug-metabolizing enzymes (DMEs) by herbal constituents. UDP-glucuronosyltransferases (UGTs) catalyzing glucuronidation are the major metabolic enzymes of Phase II DMEs. The in vitro inhibitory effect of several herbal constituents on one of the most important UGT isoforms, UGT2B7, in human liver microsomes (HLM) and rat liver microsomes (RLM) was investigated. Zidovudine (ZDV) was used as the probe substrate to determine UGT2B7 activity. The intrinsic clearance (Vmax/Km) of ZDV in HLM is 1.65 µL/mg/min which is ten times greater than in RLM, which is 0.16 µL/mg/min. Andrographolide, kaempferol-3-rutinoside, mitragynine and zerumbone inhibited ZDV glucuronidation in HLM with IC50 values of 6.18 ± 1.27, 18.56 ± 8.62, 8.11 ± 4.48 and 4.57 ± 0.23 µM, respectively, hence, herb-drug interactions are possible if andrographolide, kaempferol-3-rutinoside, mitragynine and zerumbone are taken together with drugs that are highly metabolized by UGT2B7. Meanwhile, only mitragynine and zerumbone inhibited ZDV glucuronidation in RLM with IC50 values of 51.20 ± 5.95 μM and 8.14 ± 2.12 µM, respectively, indicating a difference between the human and rat microsomal model so caution must be exercised when extrapolating inhibitory metabolic data from rats to humans.
    MeSH terms: Animals; Diterpenes/administration & dosage; Humans; Microsomes, Liver/drug effects*; Microsomes, Liver/enzymology; Sesquiterpenes/administration & dosage; Glucuronosyltransferase/antagonists & inhibitors*; Glucuronosyltransferase/isolation & purification; Glucuronosyltransferase/metabolism; Glucuronosyltransferase/chemistry; Zidovudine/administration & dosage*; Zidovudine/antagonists & inhibitors; Zidovudine/chemistry; Glucuronides/antagonists & inhibitors; Herbal Medicine; Herb-Drug Interactions*; Secologanin Tryptamine Alkaloids/administration & dosage; Rats
  7. Eliaser EM, Ho JH, Hashim NM, Rukayadi Y, Ee GCL, Razis AFA
    Molecules, 2018 Oct 20;23(10).
    PMID: 30347850 DOI: 10.3390/molecules23102708
    Natural products, either pure compounds or standardized plant extracts, have provided opportunities for the discovery of new drugs. Nowadays, most of the world's population still relies on traditional medicines for healthcare purposes. Plants, in particular, are always used as traditional medicine, as they contain a diverse number of phytochemicals that can be used for the treatment of diseases. The multicomponent feature in the plants is considered a positive phytotherapeutic hallmark. Hence, ethnopharmacognosy has been the focus for finding alternative treatments for diseases. Melicopelunu-ankenda, also known as Euodialunu-ankenda, is widely distributed in tropical regions of Asia. Different parts of M.lunu-ankenda have been used for treatment of hypertension, menstrual disorder, diabetes, and fever, and as an emmenagogue and tonic. It has also been consumed as salad and as a condiment for food flavorings. The justification of use of M.lunu-ankenda in folk medicines is supported by its reported biological activities, including its cytotoxic, antibacterial, antioxidant, analgesic, antidiabetic, and anti-inflammatory activities. This review summarizes the phytochemical compounds isolated from various parts of M.lunu-ankenda, such as root and leaves, and also its biological activities, which could make the species a new therapeutic agent for some diseases, including diabetes, in the future.
    MeSH terms: Antioxidants/therapeutic use; Antioxidants/chemistry; Diabetes Mellitus/drug therapy; Diabetes Mellitus/epidemiology; Humans; Plant Extracts/therapeutic use*; Plant Extracts/chemistry; Rutaceae/chemistry*; Evodia/chemistry; Drug Discovery*; Phytochemicals/therapeutic use*; Phytochemicals/chemistry
  8. Wong HC, Ooi Y, Pulikkotil SJ, Naing C
    BMC Oral Health, 2018 10 22;18(1):171.
    PMID: 30348144 DOI: 10.1186/s12903-018-0637-9
    BACKGROUND: Periodontitis is a major oral health problem and it is considered as one of the reasons for tooth loss in developing and developed nations. The objective of the current review was to investigate the association between IL10 polymorphisms - 1082 A > G (rs1800896), -819C > T (rs1800871), - 592 A > C (rs1800872) and the risk of either chronic periodontitis or aggressive periodontitis.

    METHODS: This is a meta- analysis study, following the preferred reporting items for systematic reviews and meta- analyses (PRISMA). Relevant studies were searched in the health related electronic databases. Methodological quality of the included studies were assessed using the Newcastle-Ottawa Scale. For individual studies, odds ratio (OR) and its 95%confidence interval (CI) were calculated to assess the strength of association between IL10 polymorphisms (- 1082 A > G, -819C > T, - 592 A > C) and the risk of periodontitis. For pooling of the estimates across studies included, the summary OR and its 95% CIs were calculated with random-effects model. The pooled estimates were done under four genetic models such as the allelic contrast model, the recessive model, the dominant model and the additive model. Trial sequential analysis (TSA) was done for estimation of the required information size for this meta-analysis study.

    RESULTS: Sixteen studies were identified for this review. The included studies were assessed to be of moderate to good methodological quality. A significant association between polymorphism of IL10-1082 A > G polymorphism and the risk of chronic periodontitis in the non-Asian populations was observed only in the recessive model (OR,1.42; 95% CI:1.11, 1.8,I2: 43%). The significant associations between - 592 A > C polymorphism and the risk of aggressive periodontitis in the non-Asian populations were observed in particular genetic models such as allele contrast (OR, 4.34; 95%CI:1.87,10.07,I2: 65%) and recessive models (OR, 2.1; 95% CI:1.16, 3.82,I2: 0%). The TSA plot revealed that the required information size for evidence of effect was sufficient to draw a conclusion.

    CONCLUSIONS: This meta-analysis suggested that the IL10-1082 A > G polymorphism was associated with chronic periodontitis CP risk in non-Asians. Thus, in order to further establish the associations between IL10 (- 819 C > T, - 592 A > C) in Asian populations, future studies should include larger sample sizes with multi-ethnic groups.

    MeSH terms: Humans; Aggressive Periodontitis/ethnology; Aggressive Periodontitis/genetics*; Interleukin-10/genetics*; Genetic Predisposition to Disease*; Polymorphism, Single Nucleotide*; Chronic Periodontitis/ethnology; Chronic Periodontitis/genetics*
  9. Freeman MA, Kristmundsson Á
    Parasit Vectors, 2018 Oct 22;11(1):551.
    PMID: 30348210 DOI: 10.1186/s13071-018-3087-y
    BACKGROUND: The myxosporean Myxidium giardi Cépède, 1906 was described infecting the kidney of the European eel, Anguilla anguilla (L.), having spindle-shaped myxospores and terminal sub-spherical polar capsules. Since then, numerous anguillid eels globally have been documented to have similar Myxidium infections. Many of these have been identified using the morphological features of myxospores or by the location of infection in the host, and some have been subsequently synonymised with M. giardi. Therefore, it is not clear whether M. giardi is a widely distributed parasite, infecting numerous species of eels, in multiple organs, or whether some infections represent other, morphologically similar but different species of myxosporeans. The aim of the present study was to assess the status of M. giardi infections in Icelandic eels, and related fish hosts in Malaysia and to use spore morphology and molecular techniques to evaluate the diversity of myxosporeans present.

    RESULTS: The morphologies of the myxospores from Icelandic eels were very similar but the overall dimensions were significantly different from the various tissue locations. Myxospores from the kidney of the Malaysian tarpon, Megalops cyprinoides (Broussonet), were noticeably smaller. However, the SSU rDNA sequences from the different tissues locations in eels, were all very distinct, with percentage similarities ranging from 92.93% to as low as 89.8%, with the sequence from Malaysia being even more dissimilar. Molecular phylogenies consistently placed these sequences together in a clade that we refer to as the Paramyxidium clade that is strongly associated with the Myxidium clade (sensu stricto). We erect the genus Paramyxidium n. g. (Myxidiidae) to accommodate these histozoic taxa, and transfer Myxidium giardi as Paramyxidium giardi Cépède, 1906 n. comb. as the type-species.

    CONCLUSIONS: There is not a single species of Myxidium (M. giardi) causing systemic infections in eels in Iceland. There are three species, confirmed with a robust phylogeny, one of which represents Paramyxidium giardi n. comb. Additional species probably exist that infect different tissues in the eel and the site of infection in the host fish is an important diagnostic feature for this group (Paramyxidium n. g. clade). Myxospore morphology is generally conserved in the Paramyxidium clade, although actual spore dimensions can vary between some species. Paramyxidium spp. are currently only known to infect fishes from the Elopomorpha.

    MeSH terms: Animals; Eels/parasitology*; Fish Diseases/parasitology*; Iceland; Genetic Variation*
  10. Carrero JJ, Thomas F, Nagy K, Arogundade F, Avesani CM, Chan M, et al.
    J Ren Nutr, 2018 11;28(6):380-392.
    PMID: 30348259 DOI: 10.1053/j.jrn.2018.08.006
    OBJECTIVE: To better define the prevalence of protein-energy wasting (PEW) in kidney disease is poorly defined.

    METHODS: We performed a meta-analysis of PEW prevalence from contemporary studies including more than 50 subjects with kidney disease, published during 2000-2014 and reporting on PEW prevalence by subjective global assessment or malnutrition-inflammation score. Data were reviewed throughout different strata: (1) acute kidney injury (AKI), (2) pediatric chronic kidney disease (CKD), (3) nondialyzed CKD 3-5, (4) maintenance dialysis, and (5) subjects undergoing kidney transplantation (Tx). Sample size, period of publication, reporting quality, methods, dialysis technique, country, geographical region, and gross national income were a priori considered factors influencing between-study variability.

    RESULTS: Two studies including 189 AKI patients reported a PEW prevalence of 60% and 82%. Five studies including 1776 patients with CKD stages 3-5 reported PEW prevalence ranging from 11% to 54%. Finally, 90 studies from 34 countries including 16,434 patients on maintenance dialysis were identified. The 25th-75th percentiles range in PEW prevalence among dialysis studies was 28-54%. Large variation in PEW prevalence across studies remained even when accounting for moderators. Mixed-effects meta-regression identified geographical region as the only significant moderator explaining 23% of the observed data heterogeneity. Finally, two studies including 1067 Tx patients reported a PEW prevalence of 28% and 52%, and no studies recruiting pediatric CKD patients were identified.

    CONCLUSION: By providing evidence-based ranges of PEW prevalence, we conclude that PEW is a common phenomenon across the spectrum of AKI and CKD. This, together with the well-documented impact of PEW on patient outcomes, justifies the need for increased medical attention.

    MeSH terms: Humans; Protein-Energy Malnutrition/epidemiology*; Societies, Medical; Comorbidity; Prevalence; Internationality; Renal Insufficiency, Chronic/epidemiology*; Observational Studies as Topic
  11. Tafran K
    Kidney Int, 2018 11;94(5):1023.
    PMID: 30348288 DOI: 10.1016/j.kint.2018.08.017
    MeSH terms: Humans; Tissue and Organ Procurement*; Organ Transplantation; Presumed Consent*
  12. Chen YH, Lee HJ, Lee MT, Wu YT, Lee YH, Hwang LL, et al.
    Proc Natl Acad Sci U S A, 2018 11 06;115(45):E10720-E10729.
    PMID: 30348772 DOI: 10.1073/pnas.1807991115
    Adequate pain management remains an unmet medical need. We previously revealed an opioid-independent analgesic mechanism mediated by orexin 1 receptor (OX1R)-initiated 2-arachidonoylglycerol (2-AG) signaling in the ventrolateral periaqueductal gray (vlPAG). Here, we found that low-frequency median nerve stimulation (MNS) through acupuncture needles at the PC6 (Neiguan) acupoint (MNS-PC6) induced an antinociceptive effect that engaged this mechanism. In mice, MNS-PC6 reduced acute thermal nociceptive responses and neuropathy-induced mechanical allodynia, increased the number of c-Fos-immunoreactive hypothalamic orexin neurons, and led to higher orexin A and lower GABA levels in the vlPAG. Such responses were not seen in mice with PC6 needle insertion only or electrical stimulation of the lateral deltoid, a nonmedian nerve-innervated location. Directly stimulating the surgically exposed median nerve also increased vlPAG orexin A levels. MNS-PC6-induced antinociception (MNS-PC6-IA) was prevented by proximal block of the median nerve with lidocaine as well as by systemic or intravlPAG injection of an antagonist of OX1Rs or cannabinoid 1 receptors (CB1Rs) but not by opioid receptor antagonists. Systemic blockade of OX1Rs or CB1Rs also restored vlPAG GABA levels after MNS-PC6. A cannabinoid (2-AG)-dependent mechanism was also implicated by the observations that MNS-PC6-IA was prevented by intravlPAG inhibition of 2-AG synthesis and was attenuated in Cnr1-/- mice. These findings suggest that PC6-targeting low-frequency MNS activates hypothalamic orexin neurons, releasing orexins to induce analgesia through a CB1R-dependent cascade mediated by OX1R-initiated 2-AG retrograde disinhibition in the vlPAG. The opioid-independent characteristic of MNS-PC6-induced analgesia may provide a strategy for pain management in opioid-tolerant patients.
    MeSH terms: Orexins/pharmacology*; Analgesia*; Animals; Humans; Median Nerve/drug effects; Median Nerve/physiology*; Mice; Endocannabinoids/metabolism*; Gray Matter/metabolism*
  13. Farrukh MJ, Makmor-Bakry M, Hatah E, Tan HJ
    Patient Prefer Adherence, 2018;12:2111-2121.
    PMID: 30349205 DOI: 10.2147/PPA.S179031
    Purpose: To identify the use pattern of complementary and alternative medicine (CAM) and its impact on antiepileptic drug (AED) adherence among patients with epilepsy.

    Method: Potential studies were identified through a systematic search of Scopus, Science Direct, Google Scholar, and PubMed. The keywords used to identify relevant articles were "adherence," "AED," "epilepsy," "non-adherence," and "complementary and alternative medicine." An article was included in the review if the study met the following criteria: 1) conducted in epilepsy patients, 2) conducted in patients aged 18 years and above, 3) conducted in patients prescribed AEDs, and 4) patients' adherence to AEDs.

    Results: A total of 3,330 studies were identified and 30 were included in the final analysis. The review found that the AED non-adherence rate reported in the studies was between 25% and 66%. The percentage of CAM use was found to be between 7.5% and 73.3%. The most common reason for inadequate AED therapy and higher dependence on CAM was the patients' belief that epilepsy had a spiritual or psychological cause, rather than primarily being a disease of the brain. Other factors for AED non-adherence were forgetfulness, specific beliefs about medications, depression, uncontrolled recent seizures, and frequent medication dosage.

    Conclusion: The review found a high prevalence of CAM use and non-adherence to AEDs among epilepsy patients. However, a limited number of studies have investigated the association between CAM usage and AED adherence. Future studies may wish to explore the influence of CAM use on AED medication adherence.

    MeSH terms: Complementary Therapies; Anticonvulsants; Brain; Depression; Depressive Disorder; Epilepsy; Humans; Seizures; Prevalence; PubMed; Medication Adherence
  14. Megat Nabil Mohsin S, Hussein MZ, Sarijo SH, Fakurazi S, Arulselvan P, Taufiq-Yap YH
    Int J Nanomedicine, 2018;13:6359-6374.
    PMID: 30349255 DOI: 10.2147/IJN.S171390
    Introduction: The potential of layered double hydroxide (LDH) as a host of multiple ultraviolet-ray absorbers was investigated by simultaneous intercalation of benzophenone 4 (B4) and Eusolex® 232 (EUS) in Zn/Al LDH.

    Methods: The nanocomposites were prepared via coprecipitation method at various molar ratios of B4 and EUS.

    Results: At equal molar ratios, the obtained nanocomposite showed an intercalation selectivity that is preferential to EUS. However, the selectivity ratio of intercalated anions was shown to be capable of being altered by adjusting the molar ratio of intended guests during synthesis. Dual-guest nanocomposite synthesized with B4:EUS molar ratio 3:1 (ZEB [3:1]) showed an intercalation selectivity ratio of B4:EUS =53:47. Properties of ZEB (3:1) were monitored using powder X-ray diffractometer to show a basal spacing of 21.8 Å. Direct-injection mass spectra, Fourier transform infrared spectra, and ultraviolet-visible spectra confirmed the dual intercalation of both anions into the interlayer regions of dual-guest nanocomposite. The cytotoxicity study of dual-guest nanocomposite ZEB (3:1) on human dermal fibroblast cells showed no significant toxicity until 25 μg/mL.

    Conclusion: Overall, the findings demonstrate successful customization of ultraviolet-ray absorbers composition in LDH host.

    MeSH terms: Cells, Cultured; Fibroblasts/cytology; Fibroblasts/drug effects*; Fibroblasts/radiation effects; Humans; Hydroxides/chemistry*; Intercalating Agents/administration & dosage*; Intercalating Agents/chemistry; Sunscreening Agents/administration & dosage*; Sunscreening Agents/chemistry; Ultraviolet Rays*; Dermis/cytology; Dermis/drug effects*; Dermis/radiation effects; Nanocomposites/administration & dosage*; Nanocomposites/chemistry
  15. Veettil SK, Jinatongthai P, Nathisuwan S, Teerawattanapong N, Ching SM, Lim KG, et al.
    Clin Epidemiol, 2018;10:1433-1445.
    PMID: 30349391 DOI: 10.2147/CLEP.S174120
    Background: Various interventions have been tested as primary prevention of colorectal cancers (CRC), but comprehensive evidence comparing them is absent. We examined the effects of various chemopreventive agents (CPAs) on CRC incidence and mortality.

    Methods: We did a network meta-analysis based on a systematic review of randomized controlled trials (RCTs) that compared at least one CPA (aspirin, antioxidants, folic acid, vitamin B6, vitamin B12, calcium, vitamin D, alone or in combination) to placebo or other CPA in persons without history of CRC. Several databases were searched from inception up to March 2017. Primary outcomes were early and long-term CRC incidence and mortality.

    Results: Twenty-one RCTs comprising 281,063 participants, 9 RCTS comprising 160,101 participants, and 7 RCTs comprising 24,001 participants were included in the network meta-analysis for early risk of CRC incidence, long-term risk of CRC incidence and mortality, respectively. For early CRC incidence, no CPAs were found to be effective. For long-term CRC incidence and mortality, aspirin was the only intervention that showed protective effects with potential dose-dependent effects (risk ratio [RR], 0.74 [95% CI, 0.57-0.97] for high-dose [≥325 mg/day] and RR, 0.81 [95% CI, 0.67-0.98] for very-low-dose [≤100 mg/day]). Similar trend was found for mortality (RR, 0.43 [95% CI, 0.23-0.81] for low-dose [>100-325 mg/day] and RR, 0.65 [95% CI, 0.45-0.94] for very-low-dose). However, in net clinical benefit analysis, when combining risk estimates on mortality from CRC, cardiovascular disease, and pooled risk estimates of major gastrointestinal bleeding, low-dose aspirin provided the highest net survival gain (%) of 1.736 [95% CI, 1.010-2.434].

    Conclusion: Aspirin at the dose range of 75-325 mg/day is a safe and effective primary prevention for long-term CRC among people at average risk. None of the other CPAs were found to be effective. There may potentially be differential effects among various doses of aspirin that needs further investigation.

  16. Lim SZ, Chua EW
    Front Pharmacol, 2018;9:1107.
    PMID: 30349479 DOI: 10.3389/fphar.2018.01107
    Azathioprine and 6-mercaptopurine, often referred to as thiopurine compounds, are commonly used in the management of inflammatory bowel disease. However, patients receiving these drugs are prone to developing adverse drug reactions or therapeutic resistance. Achieving predefined levels of two major thiopurine metabolites, 6-thioguanine nucleotides and 6-methylmercaptopurine, is a long-standing clinical practice in ensuring therapeutic efficacy; however, their correlation with treatment response is sometimes unclear. Various genetic markers have also been used to aid the identification of patients who are thiopurine-sensitive or refractory. The recent discovery of novel Asian-specific DNA variants, namely those in the NUDT15 gene, and their link to thiopurine toxicity, have led clinicians and scientists to revisit the utility of Caucasian biomarkers for Asian individuals with inflammatory bowel disease. In this review, we explore the limitations associated with the current methods used for therapeutic monitoring of thiopurine metabolites and how the recent discovery of ethnicity-specific genetic markers can complement thiopurine metabolites measurement in formulating a strategy for more accurate prediction of thiopurine response. We also discuss the challenges in thiopurine therapy, alongside the current strategies used in patients with reduced thiopurine response. The review is concluded with suggestions for future work aiming at using a more comprehensive approach to optimize the efficacy of thiopurine compounds in inflammatory bowel disease.
  17. Ibrahim Abdalla MM, Siew Choo S
    Eur Endocrinol, 2018 Sep;14(2):94-98.
    PMID: 30349601 DOI: 10.17925/EE.2018.14.2.94
    Aims: 1) To assess salivary leptin levels in normal-underweight versus overweight and obese healthy adult males aged 18-25 years old. 2) The relative contribution of anthropometric measurements, fat percentage, fat distribution (visceral versus subcutaneous) and total as well as regional muscle mass in arms, trunk and legs respectively in predicting salivary leptin levels. Methods: A total of 92 adult males were classified into two groups based on their body mass index (BMI): normal-underweight, BMI <24.9 kg/m2 (n=51); overweight-obese, BMI >25 kg/m2 (n=41). Anthropometric measurements such as BMI, waist circumference (WC), hip circumference (HC) and waist-hip ratio (WHR) were measured through standardised methods. Fat percentage, visceral fat level, subcutaneous fat and muscle mass (total and regional) were measured using Karada scan bioelectrical impedance method. Fasting saliva samples were collected and used for assessing salivary leptin concentrations using enzyme-linked immunosorbent assay. Results: Statistical analysis of the data showed a significant difference between the two groups in all of the parameters measured except height and salivary leptin levels. Multiple regression analysis showed that HC, WC and WHR were good predictors for salivary leptin levels in normal-underweight group. However, in the overweight-obese group, height was the most important independent variable that could predict salivary leptin levels as a dependent variable. Conclusions: Predictors for salivary leptin levels in adult healthy males are different in normal-underweight subjects from overweight-obese subjects. The most important predictor for salivary leptin levels is HC in normal weight subjects, while it is height in overweight and obese healthy adult males.
    MeSH terms: Adult; Enzyme-Linked Immunosorbent Assay; Fasting; Humans; Male; Obesity; Regression Analysis; Saliva; Thinness; Body Mass Index; Electric Impedance; Leptin; Waist-Hip Ratio; Subcutaneous Fat; Intra-Abdominal Fat; Overweight; Waist Circumference
  18. Chuah YY, Lee YY, Chen WC, Kao SS
    Acta Gastroenterol Belg, 2018 10 24;81(3):447-448.
    PMID: 30350541
    MeSH terms: Esophageal and Gastric Varices/etiology; Esophageal and Gastric Varices/surgery*; Esophageal Diseases/etiology*; Hemostasis, Surgical/adverse effects*; Hemostasis, Surgical/instrumentation; Humans; Intraoperative Complications/etiology*; Liver Cirrhosis/complications; Male; Mediastinal Emphysema/etiology; Middle Aged; Rupture/etiology*; Radiography, Thoracic; Tomography, X-Ray Computed; Gastric Balloon; Hepatitis C, Chronic/complications
  19. Noordin R, Yunus MH, Robinson K, Won KY, Babu S, Fischer PU, et al.
    Am J Trop Med Hyg, 2018 12;99(6):1587-1590.
    PMID: 30350768 DOI: 10.4269/ajtmh.18-0566
    At the end phase of the Global Programme to Eliminate Lymphatic Filariasis, antibody testing may have a role in decision-making for bancroftian filariasis-endemic areas. This study evaluated the diagnostic performance of BLF Rapid™, a prototype immunochromatographic IgG4-based test using BmSXP recombinant protein, for detection of bancroftian filariasis. The test was evaluated using 258 serum samples, comprising 96 samples tested at Universiti Sains Malaysia (in-house) and 162 samples tested independently at three international laboratories in the USA and India, and two laboratories in Malaysia. The independent testing involved 99 samples from Wuchereria bancrofti microfilaria or antigen positive individuals and 63 samples from people who were healthy or had other infections. The in-house evaluation showed 100% diagnostic sensitivity and specificity. The independent evaluations showed a diagnostic sensitivity of 84-100% and 100% specificity (excluding non-lymphatic filarial infections). BLF Rapid has potential as a surveillance diagnostic tool to make "Transmission Assessment Survey"-stopping decisions and conduct post-elimination surveillance.
    MeSH terms: Animals; Antibodies, Helminth/blood*; Antigens, Helminth/blood; Elephantiasis, Filarial/diagnosis*; Elephantiasis, Filarial/immunology; Elephantiasis, Filarial/epidemiology; Elephantiasis, Filarial/parasitology; Female; Humans; Immunoglobulin G/blood*; Immunoassay/standards*; Malaysia/epidemiology; Sensitivity and Specificity; Wuchereria bancrofti/immunology*; Wuchereria bancrofti/isolation & purification; Epidemiological Monitoring
  20. Subramaniam K, Mohd Shah M, Fatin Farisha F, Poh SL, Nor Fadhilah M, Hilmi S
    Med J Malaysia, 2018 10;73(5):272-275.
    PMID: 30350803 MyJurnal
    INTRODUCTION: The role of pathologist not only confined in performing post mortem but also can assist in prevention. The aim of this study to determine the prevalence and association of drug of abuse (DoA) in road traffic collision (RTC) at Hospital Kuala Lumpur.

    METHODS: This is a retrospective study of post mortem cases at Hospital Kuala Lumpur from 2014 to 2016. Deaths from RTC were included while decomposed and homicide cases were excluded. We performed Spearman Correlation statistical test to relate RTC and positive DoA results.

    RESULTS: A total of 523 RTC cases were identified in which either blood or urine or both samples were taken for toxicology. 93 cases were positive for both DoA and therapeutic drugs. A total of 37 cases were positive for DoA. Alcohol was present in 5 out of 37 DoA positive cases. Most of the cases seen among 16 to 45 years old (69%) and predominantly in males (93.1%). 29 out of 37 were motorcyclist and the rest were pillion rider and pedestrian. Spearman Correlation statistical test showed a negative relationship between RTC and positive DoA results.

    DISCUSSION AND CONCLUSION: Majority of the DoA cases in RTC were identified in the younger age group and among the motorcyclist. Spearman Correlation statistical test showed that more cases of DoA died in natural or suicidal manner compared to RTC. However, this doesn't reflect the true association of DoA in RTC. This is because of mainly two factors which the delayed effect of DoA that gives negative toxicology test and also the influence of other road users on DoA.

    MeSH terms: Pedestrians; Ethanol; Autopsy; Death; Homicide; Male; Retrospective Studies; Street Drugs; Prevalence; Substance-Related Disorders; Pathologists
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