This finite element analysis is aimed at comparing relative stiffness of three different posterior instrumentation constructs: the Hospital Universiti Kebangsaan Malaysia Spinal Instrumentation System (HUKM-SIS), the Cotrell-Dubousset Instrumentation (CDI) and Harrington Instrumentation System (HIS), used in the treatment of adolescent idiopathic scoliosis (AIS). The constructs were tested under various loads using MSC Patran 2001 r2a. Under increasing flexion loads, there was a linearly corresponding increase in deflection magnitudes for all constructs on the load-deflection curve. The CDI was the stiffest construct under axial, forward flexion and extension loads, followed by the HUKM-SIS and HIS. Under lateral bending loads, the HUKM-SIS construct was the stiffest followed by CDI and HIS. The HUKM-SIS construct was stiffer than HIS under torsional loads. We conclude that multiple pedicle screws increase the stiffness of posterior instrumentation constructs under all loads and inter-segmental spinous processes wiring increase the stiffness against lateral bending.
instrumentation ; PDGFB Gene ; System ; Spinal ; Scoliosis, unspecified

This study assessed the level of public awareness pertaining to risk factors,symptoms, treatment and source of information in relation to stroke and transient ischaemic attack. Stroke risk profile of the respondents was correlated with their level of knowledge. Using a validated pre-tested questionnaire, 112 respondents were recruited during two separate community events. Respondents completed the questionnaire and underwent health screening. The data were analysed using SPSS version 20. Overall knowledge was poor. Only 35% of the respondents had satisfactory knowledge of the warning signs (p= 0.94) and 29% had satisfactory knowledge on the risk factors (p=0.46). When analysed according to risk groups, 26%, 30% and 41% of respondents had satisfactory awareness in the low, intermediate and high risk group, respectively. None of the respondents knew about the availability of treatment of acute stroke in the emergency department or the importance of rehabilitation as part of stroke management. Public awareness on stroke risk factors, symptoms and management is poor.
Stroke

This study aimed to investigate the effect of saffron extract and crocin on blood biomarkers associated with obesity using the rat model. Methods: Obesity was induced by feeding a high-fat diet to 42 male Sprague-Dawley rats for 12 weeks, after which they were equally distributed into seven groups. Three groups served as controls namely, normal diet (ND), high-fat diet (HFD), and high-fat diet plus orlistat (HFD + ORL), while the remaining four treatment groups consisted of HFD added low or high dose (40 and 80 mg/kg/day) of either saffron extract or crocin in the food. At the end of 8 weeks, blood samples were collected by cardiac puncture for biochemical analysis. Results: Obese rats treated with a high dose of saffron extract and crocin showed significantly lower plasma glucose levels (5.26 and 5.67 mmol/L respectively) than the HFD rats (6.92 mmol/L). Saffron extract and crocin at a high dose showed significantly lower levels of plasma insulin (3.97 and 3.88 ng/mL respctively) compared to HFD control (5.41 ng/mL). Adiponectin levels significantly increased in obese rats fed saffron extract and crocin at high doses (7.44 and 7.92 µg/mL respectively) compared to HFD control (5.34 µg/mL). Ghrelin level significantly increased from 419.10 to 284.10 pg/mL,while leptin level significantly decreased from 8.08 to 5.68 ng/mL for the high dose crocin groups compared to HFD control. No significant differences in plasma serotonin levels were found among the groups. Conclusion: Saffron extract and crocin show potential in reducing blood biomarkers associated with obesity as well as anti-inflammatory and regulatory potential of adipocytokines in an animal model.

Computer proficiency has become necessary in many areas of medicine, administration, clinical practices, research, as well as education. The need for greater competence in information and communication technologies (IST) by doctors and medical students is increasingly recognised. Objectives: This study was undertaken to determine the knowledge, attitude and practices on ICT in the medical students of a local university. Methods: A cross-sectional descriptive study was conducted among medical students (Years 1-5) from December 2005 to May 2006 in Universiti Putra Malaysia. A self-administered questionnaire was used to collect data. Descriptive statistics were used to obtain frequencies for allvariables studied. Results: There were 343 respondents aged 18-29 years old. The results showed 82.2% of the respondents (82.2%) were comfortable using computers after enteringmedical school and 89.2% believed that ICT and computers skills are important for doctors. About 81.3% of the respondents were aware of the role of ICT and computers in learning medicine, 90.4% had used presentation packages, and 83.4% used word processing and search engines as software tools. Conclusion: The findings of this study show that medical students are knowledgeable and do have skills in information technology (IT) and computers. They are also aware of the role of information technology (IT) and computers in medicine

Occupational stress is a modern epidemic. Prevalence and predictors of occupational stress in specific workforce are critical in management of occupational stress. The aim of this review is to explore the current prevalence of occupational stress and its predictors among selected Malaysian working population based on published articles between years 2008 to 2017. A systematic search of articles published between 2008 and 2017 was conducted in several databases (ISI Web of Knowledge, PubMed, Scopus, Google scholar). A total of eleven articles met the inclusion criteria, included in the review. The current prevalence of occupational stress was between 6.0% till 71.7%. Mean prevalence of stress was 29.9%. From eight job categories, most stressful job was primary teachers and least stressful job was academician in private university. Predictors of occupational stress were: 1) organizational factors: high job demand, poor workplace condition, lack of organization support, job insecurity, long working hours, burden of career development and interpersonal conflicts 2) individual (extra-organization) factors: gender, age, marital status, number of children, coping strategies. Although the predictors of occupational stress varies among different job categories, most job categories present similar risk factors such as high job demand, poor workplace condition, lack of organization support, job insecurity, long working hours, burden of career development and interpersonal conflicts. Dual approaches involving organization and individual level pertaining towards each stressor are recommended in alleviating occupational stress among those selected workforces.

The present study was carried out to determine the concentrations of selected metal elements (lead, copper, manganese, zinc and iron) in 51 samples of commercial drinking water and tap water available in Malaysia. The results indicated that low metal elements were found in the studied water samples. Lead, manganese, zinc and iron were not detected in some of the studied samples, except copper. The concentrations of the metal elements in the studied samples were well below the maximum permitted concentrations as recommended. Therefore these drinking water are safe for consumption and do not pose adverse effect to the health of consumers due to metal toxicity.

Factor X (FX) deficiency is a rare autosomal recessive congenital bleeding disorder. The clinical presentation is among the most severe among the rare coagulation defects. Thus, majority of diagnosed patients will receive factor replacement therapy before surgical manipulation. However, the diagnosis of FX deficiency may be overlooked because it is a rare entity. This is a case report of a 15-year-old male patient who was diagnosed with FX deficiency after developing post-operative complications. With regular fresh frozen plasma infusion given, the patient responded well and recovered. However, had he been diagnosed earlier pre-operatively, the post-operative complication could have been prevented. Therefore, pre-operative coagulation screening should be performed in patients with significant bleeding history in both emergency and elective situations to prevent surgical morbidity related to post-operative bleeding.

Patients with low antithrombin III (AT III) has increased risk for arteriovenous thromboembolic (TE) disease. We report a 28-year-old Malay lady who presented with spontaneous right calf pain and swelling of one week duration. She was on oral contraceptive pills and had a history of travelling for a long distance prior to the presentation. Her brother who was diagnosed with AT III deficiency had arterial thrombosis at a young age. She was diagnosed as having right popliteal vein thrombosis by ultrasound and treated with subcutaneous fondaparinux. While on treatment, she developed massive bilateral pulmonary embolism (PE). Thrombophilia study showed reduced AT III activity (38μl/dl) and normal results for protein C, protein S, activated protein C resistance and lupus anticoagulant assays. This patient has heterozygous AT III deficiency added with significant acquired factors responsible for the TE events. Those with AT III deficiency may have resistance to heparin therapy and require higher doses of heparin.

Avian infectious bronchitis (IB), a Gammacoronavirus, is a highly contagious upper respiratory disease, affecting chickens of all ages with a significant economic threat to the poultry industry. In February 2020, a specimen of imported chicken meat product was received and requested for coronavirus testing. The result was positive for the avian coronavirus, the IB virus (IBV) by molecular detection in the pre-screening test. Thus, this study aimed to isolate and characterize the IBV from the specimen. Virus isolation via egg inoculation was attempted and IBV was successfully isolated. The S1 subunit of the spike (S) gene of the IBV was amplified, sequenced, and the Basic Local Alignment Search Tool (BLAST) analysis showed that the IBV has 99% and 98% nucleotide similarity with the Malaysian and China IBVs, respectively. The phylogenetic analysis indicated that the virus belongs to the GI-19 lineage (also known as the QX strain) and is grouped with other IBVs from Malaysia and China. The GI-19 lineage is one of the primary IB strains that circulate in Malaysia. The recovery of the virus may be due to the persistence characteristic of the virus on meat; and the cold chain practices in the imported food product prolong the survival of this coronavirus. Though IBV is not identified as a hazard in chicken meat or meat products, raw food should be cooked thoroughly before being consumed. With the increase in international trade in poultry and poultry products, disease screening at the entry point and import risk analysis is crucial to ensure food safety and prevent the introduction of new viruses into Malaysia.

Wild aquatic birds are natural reservoirs of influenza A viruses and H3 subtype is one of the most prevalent subtypes in waterfowl. Two H3N8 viruses of low pathogenic avian influenza (LPAI) were isolated via egg inoculation technique from the fecal swab specimens from imported barnacle goose and paradise shelduck in Veterinary Research Institute Ipoh, Malaysia. The full length of eight gene segments of the two viruses were amplified and sequenced with specific primers. The sequences were molecularly characterized, and the sequence identity were assessed with other published sequences. The two viruses are identical and they possess the same amino acid sequences for all the eight gene segments. The viruses were highly similar to the H3 virus from Netherlands and N8 virus from Belgium respectively. Phylogenetic analysis revealed that all the eight gene segments were grouped in the Eurasian lineage, and genetic reassortment may occur between the internal genes of the H3 viruses and other AI subtypes. Though four amino acid substitutions were identified in the hemagglutinin gene, the viruses retained most of the avian-type receptor binding preference. Few amino acid substitutions were observed in all internal genes. Most of the neuraminidase inhibitors and adamantine resistance related mutation were not seen in the viruses. The replicative capacity, cross species transmissibility, and potential zoonotic risk of the viruses are worth further investigation. As H3 virus poses potential threats to both human and animals, and with the increase in the international trade of birds; strict quarantine practice at the entry point and good laboratory diagnostic capabilities is crucial to prevent the introduction of new AI virus into our country.