Browse publications by year: 2018

  1. Arora S, Bapat RA, Chaubal T
    Am J Med Sci, 2018 12;356(6):e43.
    PMID: 30278877 DOI: 10.1016/j.amjms.2018.07.009
    MeSH terms: Adult; Female; Humans; Malaysia; Mouth/pathology*; Lichen Planus, Oral/diagnosis*; Lichen Planus, Oral/drug therapy; Lichen Planus, Oral/pathology
  2. Sekeli R, Hamid MH, Razak RA, Wee CY, Ong-Abdullah J
    Front Plant Sci, 2018;9:1380.
    PMID: 30279695 DOI: 10.3389/fpls.2018.01380
    Carica papaya L. or commonly known as papaya, is a major tropical crop consumed worldwide either as a vegetable or fresh fruit or processed products. In Malaysia, papaya was initially planted as a smallholder crop throughout the country. Eventually after 15 years of breeding and selection, a new variety, named C. papaya L. var. Eksotika, was released by the Malaysian Agricultural Research and Development Institute (MARDI) in 1987. This event changed the outlook of papaya planting from a smallholder crop to a plantation crop. Despite the blooming papaya business, the industry faced various disease issues that jeopardize its future. The most devastating was the papaya dieback disease, which affected approximately 800 hectares of plantation, destroyed approximately 1 million trees nationwide with total losses estimated at US$ 58 million. Even though Eksotika is a favored commercial variety with good eating and aesthetic quality fruit, its potential for more lucrative distant markets is tarnished with its short-shelf life fruits. Several strategies had been reported to address the challenges faced by Eksotika specifically against the dieback disease and the fruit's short shelf-life. This review focuses on C. papaya L. var. Eksotika particularly on the strategies to address the challenges faced in order to sustain the economic value of this crop plant, which had contributed significantly to the Malaysian economy.
    MeSH terms: Academies and Institutes; Agriculture; Breeding; Esthetics; Fruit; Industry; Malaysia; Trees; Vegetables; Carica
  3. Shakeel PM, Baskar S, Dhulipala VRS, Jaber MM
    Health Inf Sci Syst, 2018 Dec;6(1):16.
    PMID: 30279986 DOI: 10.1007/s13755-018-0054-0
    Diabetes mellitus is a serious health problem affecting the entire population all over the world for many decades. It is a group of metabolic disorder characterized by chronic disease which occurs due to high blood sugar, unhealthy foods, lack of physical activity and also hereditary. The sorts of diabetes mellitus are type1, type2 and gestational diabetes. The type1 appears during childhood and type2 diabetes develop at any age, mostly affects older than 40. The gestational diabetes occurs for pregnant women. According to the statistical report of WHO 79% of deaths occurred in people under the age of 60, due to diabetes. With a specific end goal to deal with the vast volume, speed, assortment, veracity and estimation of information a scalable environment is needed. Cloud computing is an interesting computing model suitable for accommodating huge volume of dynamic data. To overcome the data handling problems this work focused on Hadoop framework along with clustering technique. This work also predicts the occurrence of diabetes under various circumstances which is more useful for the human. This paper also compares the efficiency of two different clustering techniques suitable for the environment. The predicted result is used to diagnose which age group and gender are mostly affected by diabetes. Further some of the attributes such as hyper tension and work nature are also taken into consideration for analysis.
  4. A Rahaman SN, Mat Yusop J, Mohamed-Hussein ZA, Aizat WM, Ho KL, Teh AH, et al.
    PeerJ, 2018;6:e5377.
    PMID: 30280012 DOI: 10.7717/peerj.5377
    Proteins of the DUF866 superfamily are exclusively found in eukaryotic cells. A member of the DUF866 superfamily, C1ORF123, is a human protein found in the open reading frame 123 of chromosome 1. The physiological role of C1ORF123 is yet to be determined. The only available protein structure of the DUF866 family shares just 26% sequence similarity and does not contain a zinc binding motif. Here, we present the crystal structure of the recombinant human C1ORF123 protein (rC1ORF123). The structure has a 2-fold internal symmetry dividing the monomeric protein into two mirrored halves that comprise of distinct electrostatic potential. The N-terminal half of rC1ORF123 includes a zinc-binding domain interacting with a zinc ion near to a potential ligand binding cavity. Functional studies of human C1ORF123 and its homologue in the fission yeast Schizosaccharomyces pombe (SpEss1) point to a role of DUF866 protein in mitochondrial oxidative phosphorylation.
    MeSH terms: Chromosomes, Human, Pair 1; Eukaryotic Cells; Humans; Ligands; Oxidative Phosphorylation; Proteins; Schizosaccharomyces; Zinc; Open Reading Frames; Static Electricity
  5. Michael NDB, Gunaseelan S, Tuan Jaffar TN, Noordin Z, Hussein A
    Cureus, 2018 Jul 30;10(7):e3066.
    PMID: 30280062 DOI: 10.7759/cureus.3066
    Background Endogenous endophthalmitis (EE) is a type of intraocular inflammation secondary to hematogenous spread from a distant infective source within the body and usually occurs in immunocompromised patients. Objectives The aim of this study was to profile the patient characteristics, sources of infection, microbial profiles, and visual outcomes of patients with EE in Raja Perempuan Zainab II Hospital in Kelantan, Malaysia. Materials and methods Data from 18 eyes of 17 patients diagnosed with EE and admitted to the eye ward of Raja Perempuan Zainab II Hospital from January 2012 to December 2016 were retrospectively reviewed. Factors analyzed included patient age, sources of infection, visual acuity, microbial profiles, and treatment outcomes. Results The mean age of the 17 patients was 53.2 years. Twelve patients (70.6%) had EE of left eye, four (23.5%) had EE of right eye, and one (5.9%) had EE involving both the eyes. Sixteen patients (91.1%) had at least one predisposing condition, the most common of which was diabetes mellitus in 15 patients (88.2%). A source of infection was identified in 12 of the 17 patients, with urinary tract infection being the most common (five patients, 29.4%). Organisms were successfully isolated from 10 (58.8%) patients, including seven (41.2%) with Gram-negative and three (17.6%) with Gram-positive organisms. All patients presented with a visual acuity worse than 6/60. Nine (52.9%) patients underwent vitrectomy, with only two of these patients achieving a final visual acuity better than 6/60. Eleven patients became nonperceptive to light, with four of them undergoing evisceration. Conclusions EE is a rare but often devastating ocular condition. Visual outcomes are often poor especially in patients infected with Gram-negative bacteria.
    MeSH terms: Animals; Bacteria; Diabetes Mellitus; Eye; Humans; Inflammation; Malaysia; Middle Aged; Endophthalmitis; Retrospective Studies; Skates (Fish); Urinary Tract Infections; Uveitis; Visual Acuity; Vitrectomy; Immunocompromised Host; Treatment Outcome
  6. Arifin SRM, Cheyne H, Maxwell M
    AIMS Public Health, 2018;5(3):260-295.
    PMID: 30280116 DOI: 10.3934/publichealth.2018.3.260
    The purpose of this review was to examine articles related to recent epidemiological evidence of the prevalence of maternal postnatal depression (PND) across different countries and cultures and to identify specific epidemiological studies that have been carried out exclusively in Malaysia on the prevalence of maternal PND. The review was undertaken in two stages, an initial review and an updated review. At both stages systematic literature searches of online databases were performed to identify articles on the prevalence of maternal PND. A total of 124 articles concerning research conducted in more than 50 countries were included in the final analysis. There were wide variations in the screening instruments and diagnostic tools used although the Edinburgh Postnatal Depression Scale (EPDS) was the most common instrument applied to identify PND. The prevalence of maternal PND ranged from 4.0% to 63.9%, with Japan and America recording the lowest and highest rates, respectively. Within continents, a wide variation in reported prevalence was also found. The reported rates of maternal PND in Malaysia were much higher than that previously documented with a range of 6.8-27.3%. This review indicated that the widely cited prevalence of maternal PND of 10-15% underestimates rates of PND worldwide. The reasons for this variability may not be fully explained by review methods. Future studies should evaluate the nature of women's PND experiences across cultures to explain these wide variations.
    MeSH terms: Female; Humans; Japan; Malaysia; Psychiatric Status Rating Scales; Publications; Research; Prevalence; Epidemiologic Studies; Depression, Postpartum
  7. Tsuchida N, Hamada K, Shiina M, Kato M, Kobayashi Y, Tohyama J, et al.
    Clin Genet, 2018 12;94(6):538-547.
    PMID: 30280376 DOI: 10.1111/cge.13454
    N-methyl-d-aspartate (NMDA) receptors are glutamate-activated ion channels that are widely distributed in the central nervous system and essential for brain development and function. Dysfunction of NMDA receptors has been associated with various neurodevelopmental disorders. Recently, a de novo recurrent GRIN2D missense variant was found in two unrelated patients with developmental and epileptic encephalopathy. In this study, we identified by whole exome sequencing novel heterozygous GRIN2D missense variants in three unrelated patients with severe developmental delay and intractable epilepsy. All altered residues were highly conserved across vertebrates and among the four GluN2 subunits. Structural consideration indicated that all three variants are probably to impair GluN2D function, either by affecting intersubunit interaction or altering channel gating activity. We assessed the clinical features of our three cases and compared them to those of the two previously reported GRIN2D variant cases, and found that they all show similar clinical features. This study provides further evidence of GRIN2D variants being causal for epilepsy. Genetic diagnosis for GluN2-related disorders may be clinically useful when considering drug therapy targeting NMDA receptors.
    MeSH terms: Adolescent; Alleles; Amino Acid Sequence; Brain/abnormalities; Child; Developmental Disabilities/diagnosis*; Developmental Disabilities/genetics*; Child, Preschool; Electroencephalography; Epilepsy/diagnosis*; Epilepsy/genetics*; Female; Genotype; Humans; Male; Mutation; Protein Conformation; Structure-Activity Relationship; Genetic Variation*; Receptors, N-Methyl-D-Aspartate/genetics*; Receptors, N-Methyl-D-Aspartate/chemistry; Molecular Dynamics Simulation
  8. Lim CY, Junit SM, Aziz AA, Jayapalan JJ, Hashim OH
    Electrophoresis, 2018 12;39(23):2965-2973.
    PMID: 30280388 DOI: 10.1002/elps.201800258
    The hypolipidemic effects of Tamarindus indica fruit pulp extract (Ti-FPE) have been earlier reported but the underlying molecular mechanisms are still uncertain. In this study, hamsters fed with Ti-FPE, both in the absence and presence of high-cholesterol diet, were shown to have significantly reduced levels of serum triglyceride, LDL-C and total cholesterol. The Ti-FPE-fed non-hypercholesterolemic hamsters also showed significant enhanced levels of serum apolipoprotein A1, antithrombin III, transferrin and vitamin D binding protein. In diet-induced hypercholesterolemic hamsters, apolipoprotein A1, antithrombin III and transferrin, which were relatively low in levels, became significantly enhanced when the hamsters were fed with Ti-FPE. These Ti-FPE-fed hypercholesterolemic hamsters also showed significant higher levels of serum vitamin D binding protein. When the different treated groups of hamsters were analyzed for the levels of the four serum proteins by ELISA, similar altered abundance were detected. Ingenuity Pathway Analysis of the Ti-FPE modulated serum proteins singled out "Lipid metabolism, molecular transport, small molecule biochemistry" as the top network. Our results suggest that the hypolipidemic effects of Ti-FPE are associated with alterations of serum proteins that are known to be cardioprotective and involved in the metabolism of lipids. The MS data have been deposited to the ProteomeXchange Consortium with the dataset identifier PXD010232.
    MeSH terms: Animals; Hypolipidemic Agents/pharmacology*; Hypolipidemic Agents/chemistry; Blood Proteins/analysis*; Disease Models, Animal; Fruit/chemistry*; Cricetinae; Hypercholesterolemia/metabolism*; Male; Mesocricetus; Plant Extracts/pharmacology*; Plant Extracts/chemistry; Tamarindus/chemistry*; Lipid Metabolism/drug effects
  9. Low GK, Looi SY, Yong MH, Sharma D
    J Vector Borne Dis, 2018 10 4;55(2):79-88.
    PMID: 30280705 DOI: 10.4103/0972-9062.242568
    Diagnosing severe dengue from those who do not develop complication is important to prevent death. The objective of this systematic review was to evaluate the diagnostic test accuracy of ultrasonography in differentiating severe dengue from nonsevere dengue; and to assess if ultrasonography/ultrasound can be used as a predictive (screening) and diagnostic tool in the course of dengue infection. An electronic search was conducted in different databases via OvidSP platform. The included studies were cohort studies between 1995 and 2016 wherein cases were confirmed by dengue blood test. Severity of dengue was assessed and compared using standard WHO references. The methodological quality of the paper was assessed by two independent reviewers by using QUADAS-2 tool. In total 12 studies were included in this review after suitable screening. Overall, the studies included had a low and unclear risk of bias. Seven out of nine studies that compared severe dengue and nonsevere dengue, performed an ultrasonography on gallbladder (wall thickness cutoff-3 mm) with a sensitivity of 24.2-100% and a specificity of 13.2-98.7%. Other parameters such as splenic subcapsular fluid collection, pericardial fluid and hepatic subcapsular fluid collection had a specificity of >90%, though the sensitivity was poor. There were insufficient evidence that ultrasonography is able to differentiate severe dengue from nonsevere dengue accurately. The predictive and diagnostic value of ultrasonography could not be concluded due to insufficient reporting on the temporality of the ultrasonography performed with regard to the diagnosis. However, it might serve as an adjunct investigation to support the clinical diagnosis.
    MeSH terms: Diagnostic Tests, Routine; Humans; Ultrasonography/methods*; Severe Dengue/diagnosis*
  10. Mohtar S, Hui TWC, Irwin MG
    Paediatr Anaesth, 2018 11;28(11):1035-1042.
    PMID: 30281181 DOI: 10.1111/pan.13502
    BACKGROUND: Video-assisted thoracoscopic surgery has dramatically increased over the last decade because of both medical and cosmetic benefits. Anesthesia for video-assisted thoracoscopic surgery in small children is more challenging compared to adults due to the considerable problems posed by small airway dimensions and ventilation. The optimal technique for one-lung ventilation has yet to be established and the use of remifentanil infusion in this setting is not well described.

    AIMS: This study investigated the use of extraluminal bronchial blocker placement for one-lung ventilation and the effect of infusion of remifentanil in infants and small children undergoing video-assisted thoracoscopic surgery.

    METHODS: We retrospectively reviewed the technique of one-lung ventilation and the hemodynamic effects of remifentanil infusion in 31 small children during elective video-assisted thoracoscopic surgery for congenital lung lesions under anesthesia with sevoflurane or isoflurane, oxygen, and air. Patients' heart rate, blood pressure, and endtidal carbon dioxide at baseline (after induction of anesthesia), immediately after one-lung ventilation, during carbon dioxide insufflation, and at the end of one-lung ventilation were extracted from the database and analyzed. The use of vasopressors or dexmedetomidine was also recorded and analyzed.

    RESULTS: Extraluminal placement of a bronchial blocker alongside the tracheal tube was successfully performed in 90.3% of cases (28 patients) without any serious complications or arterial oxygen desaturation. There was no significant rise in blood pressure or heart rate even with the rise of endtidal carbon dioxide concentration during video-assisted thoracoscopic surgery. In 58% of patients (18 patients), phenylephrine was administered to maintain the blood pressure within 20% of the baseline value. There was no significant change in the heart rate of all patients at each time point.

    CONCLUSION: One-lung ventilation with an extraluminal parallel blocker was used effectively in this series of young children undergoing thoracoscopic excision of congenital pulmonary lesions. Remifentanil infusion attenuated surgical stress effectively in infants and small children undergoing video-assisted thoracoscopic surgery.

    MeSH terms: Analgesics, Opioid/therapeutic use*; Anesthesia, General/methods*; Child, Preschool; Female; Hemodynamics/drug effects; Humans; Infant; Intubation, Intratracheal/methods; Male; Retrospective Studies; Thoracotomy/methods; Cystic Adenomatoid Malformation of Lung, Congenital/surgery; Thoracic Surgery, Video-Assisted/methods*; Airway Management/methods*; One-Lung Ventilation/methods*
  11. Dančák M, Hroneš M, Sochor M, Sochorová Z
    PLoS One, 2018;13(10):e0203443.
    PMID: 30281609 DOI: 10.1371/journal.pone.0203443
    Thismia kelabitiana, a new unique species from the Sarawak state of Malaysia in the island of Borneo is described and illustrated. This new species is not similar to any species of Thismia described so far especially by having a unique form of mitre and outer perianth lobes deeply divided into 8-10 acute lobes and forming striking fringe around perianth tube opening. The species appears to be critically endangered due to ongoing logging activities in the region. It may potentially become a surrogate species for lower montane forests of the region and thus help protect them against further destruction.
    MeSH terms: Borneo; Malaysia; Islands; Forests
  12. Tang WJ, Adnan AS, Md Salleh MS, Mat Saad AZ
    J Vasc Access, 2018 Oct 01.
    PMID: 30269637 DOI: 10.1177/1129729818775359
    INTRODUCTION: A functioning and reliable arteriovenous fistula is a lifeline for individuals suffering from chronic kidney disease. The success and failure to arteriovenous fistula maturation have been frequently related to patient and surgeon factors.

    METHOD: In total, 138 participants with stage IV and V chronic kidney disease were included in this prospective observational study. Preoperative vascular mapping using ultrasound was performed to evaluate the condition and size of the vessels to fulfil the inclusion criteria. Intraoperatively, the vessel size was measured prior to anastomosis under magnified view. A specimen from the arterial wall of 5 mm in diameter was obtained from the arterotomy for histopathology assessment. Arteriovenous maturation was assessed at 6 weeks with the guidance of the ultrasound criteria of rule of sixes.

    RESULTS: From the total of 138 participants, 110 participants (79.7%) had matured arteriovenous fistula in 6 weeks. The mean size of the artery measured intraoperatively was 3.82 ± 1.33 mm and the vein was 4.05 ± 1.20 mm. Microcalcification in the arterial media which was hypothesised to be the cause of the arteriovenous fistula failure was insignificant, with a p value of 0.115. Despite having atherosclerosis in the artery, 83.3% of the arteriovenous fistula matured.

    CONCLUSION: Microcalcification and atherosclerosis are frequently seen in the arteries of chronic kidney disease patients, but they do not explain arteriovenous fistula non-maturation.

  13. EAS Familial Hypercholesterolaemia Studies Collaboration, Vallejo-Vaz AJ, De Marco M, Stevens CAT, Akram A, Freiberger T, et al.
    Atherosclerosis, 2018 10;277:234-255.
    PMID: 30270054 DOI: 10.1016/j.atherosclerosis.2018.08.051
    BACKGROUND AND AIMS: Management of familial hypercholesterolaemia (FH) may vary across different settings due to factors related to population characteristics, practice, resources and/or policies. We conducted a survey among the worldwide network of EAS FHSC Lead Investigators to provide an overview of FH status in different countries.

    METHODS: Lead Investigators from countries formally involved in the EAS FHSC by mid-May 2018 were invited to provide a brief report on FH status in their countries, including available information, programmes, initiatives, and management.

    RESULTS: 63 countries provided reports. Data on FH prevalence are lacking in most countries. Where available, data tend to align with recent estimates, suggesting a higher frequency than that traditionally considered. Low rates of FH detection are reported across all regions. National registries and education programmes to improve FH awareness/knowledge are a recognised priority, but funding is often lacking. In most countries, diagnosis primarily relies on the Dutch Lipid Clinics Network criteria. Although available in many countries, genetic testing is not widely implemented (frequent cost issues). There are only a few national official government programmes for FH. Under-treatment is an issue. FH therapy is not universally reimbursed. PCSK9-inhibitors are available in ∼2/3 countries. Lipoprotein-apheresis is offered in ∼60% countries, although access is limited.

    CONCLUSIONS: FH is a recognised public health concern. Management varies widely across countries, with overall suboptimal identification and under-treatment. Efforts and initiatives to improve FH knowledge and management are underway, including development of national registries, but support, particularly from health authorities, and better funding are greatly needed.

    MeSH terms: Anticholesteremic Agents/adverse effects; Anticholesteremic Agents/therapeutic use*; Cooperative Behavior; Health Services Accessibility; Humans; Hyperlipoproteinemia Type II/blood; Hyperlipoproteinemia Type II/diagnosis; Hyperlipoproteinemia Type II/epidemiology; Hyperlipoproteinemia Type II/therapy*; International Cooperation*; Cholesterol, LDL/blood; Phenotype; Predictive Value of Tests; Risk Factors; Global Health*; Biomarkers/blood; Prevalence; Treatment Outcome; Health Care Surveys; Genetic Predisposition to Disease; Healthcare Disparities
  14. Hagger MS, Hardcastle SJ, Hu M, Kwok S, Lin J, Nawawi HM, et al.
    Atherosclerosis, 2018 10;277:493-501.
    PMID: 30270090 DOI: 10.1016/j.atherosclerosis.2018.06.010
    BACKGROUND AND AIMS: Although familial hypercholesterolemia (FH) can be effectively managed using cholesterol-lowering medication, patients often fall short of complete treatment adherence. Identifying the psychological factors associated with self-regulation of FH medication is important to inform interventions to maximize adherence. The aim of the present study was to test an integrated psychological model in predicting FH patients' intentions to take medication.

    METHODS: FH patients attending clinics in seven countries were invited to participate in a cross-sectional survey study. Consenting patients (N = 551) completed self-report measures of generalized beliefs about medication overuse and harms, beliefs in treatment effectiveness, specific beliefs about taking medication (attitudes, subjective norms, perceived behavioral control), and intentions to take medication. Participants also completed measures of demographic variables (age, gender, education level, income, cardiovascular disease status). Data were analysed using path analysis controlling for country and demographic variables.

    RESULTS: Attitudes (β = .331, p<0.001), subjective norms (β = .121, p=0.009), and beliefs about medication overuse (β = -.160, p<0.001) were significant predictors of intentions to take medication. Treatment beliefs predicted intentions indirectly (β = .088, p<0.001) through attitudes and subjective norms. There was also an indirect effect of beliefs about medication overuse on intentions (β = -.045, p=0.056), but the effect was small compared with the direct effect.

    CONCLUSIONS: The findings indicate the importance among FH patients of specific beliefs about taking medication and generalized beliefs about medication overuse and treatment in predicting medication intentions. When managing patients, clinicians should emphasize the efficacy of taking cholesterol-lowering drugs and the importance of treatment outcomes, and allay concerns about medication overuse.

    MeSH terms: Adult; Aged; Anticholesteremic Agents/adverse effects; Anticholesteremic Agents/therapeutic use*; Cross-Sectional Studies; Female; Humans; Hyperlipoproteinemia Type II/blood; Hyperlipoproteinemia Type II/diagnosis; Hyperlipoproteinemia Type II/drug therapy*; Hyperlipoproteinemia Type II/psychology; Health Knowledge, Attitudes, Practice*; Cholesterol, LDL/blood*; Male; Middle Aged; Models, Psychological; Self Care*; Biomarkers/blood; Down-Regulation; Treatment Outcome; Risk Assessment; Intention*; Medication Adherence*
  15. Azraii AB, Ramli AS, Ismail Z, Abdul-Razak S, Mohd-Kasim NA, Ali N, et al.
    Atherosclerosis, 2018 10;277:508-516.
    PMID: 30270092 DOI: 10.1016/j.atherosclerosis.2018.08.018
    BACKGROUND AND AIMS: This study aimed to determine knowledge, awareness and practice (KAP) regarding familial hypercholesterolaemia (FH) among Malaysian primary care physicians (PCP), and to compare KAP between PCP with postgraduate qualification (PCP-PG-Qual) and PCP without PG qualification (PCP-noPG-Qual).

    METHODS: This was a cross-sectional study involving PCP with ≥1-year working experience in Malaysian primary care settings. An adapted and validated 25-item FH-KAP questionnaire was disseminated during primary care courses. Total score for each domain was calculated by summing-up the correct responses, converted into percentage scores. Normality distribution was examined and comparisons of mean/median percentage scores were made between the two groups of PCP.

    RESULTS: A total of 372 PCP completed the questionnaire. Regarding knowledge, 77.7% correctly defined FH. However, only 8.3% correctly identified coronary artery disease risk in untreated FH. The mean percentage knowledge score was significantly higher in PCP-PG-Qual compared to PCP-noPG-Qual (48.9, SD ± 13.92 vs. 35.2, SD ± 14.13), t(370) = 8.66, p 

    MeSH terms: Clinical Decision-Making; Attitude of Health Personnel*; Clinical Competence*; Cross-Sectional Studies; Education, Medical, Continuing*; Education, Medical, Graduate*; Female; Humans; Hyperlipoproteinemia Type II/blood; Hyperlipoproteinemia Type II/diagnosis; Hyperlipoproteinemia Type II/genetics; Hyperlipoproteinemia Type II/therapy*; Health Knowledge, Attitudes, Practice*; Malaysia; Male; Predictive Value of Tests; Primary Health Care*; Risk Factors; Risk Assessment; Health Care Surveys; Healthcare Disparities; Physicians, Primary Care/education*; Professional Practice Gaps
  16. Li Y, Dong HC, Teng ST, Bates SS, Lim PT
    J Phycol, 2018 12;54(6):918-922.
    PMID: 30270437 DOI: 10.1111/jpy.12791
    Pseudo-nitzschia nanaoensis sp. nov. is described from waters around Nan'ao Island (South China Sea), using morphological data and molecular evidence. This species is morphologically most similar to P. brasiliana, but differs by a denser arrangement of fibulae, interstriae, and poroids, as well as by the structure of the valvocopula and the narrow second band. Pseudo-nitzschia nanaoensis constitutes a monophyletic lineage and is well differentiated from other species on the LSU and ITS2 sequence-structure trees. Pseudo-nitzschia nanaoensis makes up the basal node on the LSU tree, and forms a sister clade with a group of P. pungens and P. multiseries on the ITS2 tree. The ability of cultured strains to produce domoic acid was assessed, including its possible induction by the presence of a copepod and brine shrimp, by liquid chromatography-tandem mass spectrometry. However, no strains showed detectable domoic acid.
    MeSH terms: Animals; Artemia; China; Chromatography, Liquid; Kainic Acid; Trees; Diatoms; Copepoda; Tandem Mass Spectrometry; Islands
  17. Low CF, Md Yusoff MR, Kuppusamy G, Ahmad Nadzri NF
    J Fish Dis, 2018 Dec;41(12):1771-1781.
    PMID: 30270534 DOI: 10.1111/jfd.12895
    Macrobrachium rosenbergii nodavirus (MrNV) has been threatening the giant freshwater prawn aquaculture since 1997, causing white tail disease in the prawn species that leads to 100% lethality of the infected postlarvae. Comprehension of the viral infectivity and pathogenesis at molecular biology level has recently resolved the viral capsid protein and evidenced the significant difference in the viral structural protein compared to other nodaviruses that infect fish and insect. Cumulative researches have remarked the proposal to assert MrNV as a member of new genus, gammanodavirus to the Nodaviridae family. The significance of molecular biology in MrNV infection is being highlighted in this current review, revolving the viral life cycle from virus binding and entry into host, virus replication in host cell, to virus assembly and release. The current review also highlights the emerging aptamers technology that is also known as synthetic antibody, its application in disease diagnosis, and its prophylactic and therapeutic properties. The future perspective of synthetic virology technology in understanding viral pathogenesis, as well as its potential in viral vaccine development, is also discussed.
    MeSH terms: Animals; Nodaviridae/physiology*; Palaemonidae/virology*
  18. Shanmugam R, Jian CYCCS, Haseeb A, Aik S
    J Orthop Surg (Hong Kong), 2018 10 3;26(3):2309499018802511.
    PMID: 30270746 DOI: 10.1177/2309499018802511
    PURPOSE: Metacarpal bone fractures constitute 10% of all fractures. Unstable metacarpal fractures require surgical intervention, which poses danger to flexor tendon either due to bicortical drilling or construct of the implant. Unicortical locking plate fixation may be the solution to preventing flexor tendon injury. Studies have compared locking and compression plates. However, in these studies, the biomechanical properties were tested using the static loading method. This study looks into cyclical loading that is more representative of in vivo conditions, particularly for early rehabilitation. We compared the biomechanical strength of the unicortical locking plate and bicortical compression plate system in a transverse metacarpal fracture, tested with cyclical loading and torsion.

    METHOD: Twenty pieces of fourth-generation, biomechanical testing grade, left third metacarpal composite bones were used. Resin was used to create the holding block at both ends of the bone. An oscillating saw with 0.8 mm thick saw blade was used to osteotomize the metacarpal sawbones to create a midshaft transverse metacarpal fracture model. Ten pieces were fixed with a 2.0 mm titanium locking plate via unicortical screw purchase and 10 were fixed with a 2.0 mm, four holes, titanium dynamic compression plate, bicortical purchase of screws. They were subjected to cyclic load to failure testing three-point bending and torsion.

    RESULTS: There were no significant difference in stiffness and cyclic three-point bending to failure between the unicortical locking plate group and the bicortical compression plate group. The bicortical compression plate group is stiffer and has a higher cyclic bending load to failure as compared to the unicortical locking plate group.

    CONCLUSION: Unicortical locking plate fixation of metacarpal fracture can be reliably applied clinically to produce a strong and stable construct that allows early mobilization of the joints. This will not only reduce the complication rate of metacarpal plating, but also improve the functional outcome of the hand.

    MeSH terms: Biomechanical Phenomena; Bone Plates*; Bone Screws*; Fracture Fixation, Internal/instrumentation*; Fracture Fixation, Internal/methods; Humans; Models, Biological; Titanium; Weight-Bearing; Metacarpal Bones/injuries*; Metacarpal Bones/surgery; Fractures, Bone/surgery*
  19. Kanesen D, Rosman AK, Kandasamy R
    J Neurosci Rural Pract, 2018 10 3;9(4):619-621.
    PMID: 30271061 DOI: 10.4103/jnrp.jnrp_103_18
    Encephaloceles are rare embryological mesenchymal developmental anomalies resulting from inappropriate ossification in the skull through which herniate the intracranial contents of the sac. Occipital encephaloceles are described as giant when they are larger than the head from which they arise, and they pose a great surgical challenge. Herein, we present a case of a giant occipital encephalocele in a neonate with Chiari malformation Type 3 to highlight the problems encountered in its management and the outcome of the surgery.
    MeSH terms: Arnold-Chiari Malformation; Encephalocele; Head; Humans; Infant, Newborn; Osteogenesis; Skull
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