Displaying publications 3141 - 3160 of 8054 in total

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  1. Lee EP, Huei TJ, Lip Henry TC, Salinawati B, Yuzaidi M, Rizal IA
    Chin J Traumatol, 2021 Aug 21.
    PMID: 34503906 DOI: 10.1016/j.cjtee.2021.08.010
    Common or external iliac artery injury due to blunt trauma is unusual without an associated pelvic fracture. Here we report on a 62 years old man that sustained left external iliac artery thrombosis due to blunt trauma following fall from motorbike. There was no immediate circulatory compromise. Contrasted CT of abdomen revealed an associated left lower abdominal wall traumatic hernia. The iliac artery was intervened with an endovascular stent to restore luminal flow and the hernia was repaired electively. The entire clinical course and management dilemma are described in this article.
  2. Nazaruddin, R., Noor Baiti, A.A., Foo, S.C., Tan, Y.N., Ayob, M.K.
    MyJurnal
    Recent research suggesting the existence of potential source of pectin from roselle calyces. Pectin was successfully extracted from seven different varieties of roselle calyces. Pectin extraction was conducted using hydrochloric acid (HCl, 0.03 N, pH 1.5) or ammonium oxalate (0.25% w/v, pH 4.6) at 85⁰C for 1 h. Chemical characteristics of the HCl- and ammonium oxalate extracted pectin were compared. Results indicated that ammonium oxalate exhibited greater efficiency in pectin extraction than HCl. Highest pectin yield at 18.7% was obtained by ammonium oxalate extraction of roselle calyx variety Acc.6 compared to only 9.77% by HCl extraction. The lowest pectin yield at 11.3% and 5.78% were observed respectively in ammonium oxalate and HCl extractions of roselle calyx variety UKMR-3. Some important characteristics of ammonium oxalate extracted pectin of roselle Acc.6 were 5.98% moisture, 3.81% ash, 4.64% methoxyl content, 42.24% anhydrouronic acid (AUA) and degree of esterification (DE) 60%. This study suggested that the high DE% roselle pectin is an alternative source of pectin for food industry.
  3. Lim, S.S., Shireene, V., Vijay, A., Tan, T.B.A., Rokiah, P., Chan, S.P.
    JUMMEC, 2007;10(1):34-38.
    MyJurnal
    We report a 33-year-old Malay lady who presented with fever, tonsillitis and pharyngitis a month after initiation of antithyroid therapy (carbimazole 15 mg tds) for thyrotoxicosis by her general practitioner. She was still clinically and biochemically thyrotoxic but not in thyroid storm. At that time, she was also confirmed to be four weeks pregnant. Her full blood count revealed neutropaenia with an absolute neutrophil count of 0.036 × 109/L. Bone marrow aspirate and trephine were compatible with carbimazole-related agranulocytosis. Carbimazole was discontinued and she was given broad spectrum antibiotics and Granulocyte Colony Stimulating Factor (GCSF), to which she responded. Verapamil was used for symptomatic heart rate control instead of beta-blockers as she had a history of bronchial asthma. The patient subsequently opted for termination of pregnancy after which she was given radioactive iodine I131 (10 mCi) for definitive therapy of her thyrotoxicosis. In conclusion, carbimazole-related agranulocytosis is an important entity to recognise and treat early to prevent morbidity and mortality. Termination of pregnancy was carried out as the treatment given during the episode of agranulocytosis may have negative effects on foetal viability and growth.
  4. Yoong, Wilkinson Jian Tan, Jo Wearn Yeap, Sharifah Sulaiha Syed Aznal
    MyJurnal
    Background: Peripheral venous catheterisation is indispensable in modern practise of medicine. The indications of venous access should be weighed against the risk of complications, the commonest being thrombophlebitis. Thrombophlebitis causes patient discomfort and the need for new catheter insertion and risk of developing further widespread infections. Methodology: This observational study was conducted on adult patients admitted to the surgical and medical ward of a tertiary hospital in Negeri Sembilan Malaysia in 2011. Four researchers visited patients daily and examined for signs of thrombophlebitis; warmth, erythema, swelling, tenderness or a palpable venous cord. Risks factors that were studied in this research were patient/s age and gender, duration of catheterization, use of catheter for infusion, size of catheter, site of catheter insertion and types of infusate. Thrombophlebitis was graded using a scale adapted from Bhandari et al. (1979). Results: In total, 428 patients were recruited with an incidence rate of thrombophlebitis of 35.2%. Among those who developed thrombophlebitis, 65% had mild thrombophlebitis, 19% moderate and 8% severe thrombophlebitis. Results showed that female patients had a significant increased risk of developing thrombophlebitis. Also risk increased significantly with increased duration of catheterization and usage of the catheter for infusion. The age of a patient, types of infusate use, size of catheter and site of catheter insertion did not significantly influence the development of thrombophlebitis. Conclusion: The study showed that risk of developing thrombophlebitis is significantly increased among female patients, and also with increased duration of catheterization and use of the peripheral venous catheter for infusion. We recommended elective replacement of catheter every 72 hours and daily examination of catheters for signs of thrombophlebitis by a healthcare personnel.
  5. Tan, C. C., Karim, A. A., Latiff, A. A., Gan, C. Y., Ghazali, F. C.
    MyJurnal
    Pepsin-solubilized collagen (PSC) was extracted from the body wall of crown-of-thorns starfish (COTS) (Acanthaster planci) using pepsin digestion in 0.5 M acetic acid. The electrophoretic pattern of PSC showed that it consisted of two α chains (α1 and α2 chains). In addition, the peptide mapping showed that there were some differences in peptide patterns among PSC, calf skin collagen and salmon skin collagen. This suggested that the primary structure of the PSC was different from calf skin collagen and salmon skin collagen. Furthermore, Fourier transform infrared spectroscopy (FTIR) investigation showed the existence of triple helical structure in PSC, suggesting that the triple helical structure was well preserved during the extraction of collagen from COTS. The denaturation temperature of PSC was 33.0°C, which was comparable with mammalian collagen. In addition, the amino acid composition analysis showed that the imino acid content of PSC was similar to mammalian collagen but it was higher than other marine collagen. This suggested that the imino acid content might contributed the denaturation temperature of collagen. The results in this study suggest that PSC from the underutilized COTS has potential to be exploited in various commercial applications.
  6. Ho, Christopher C.K., Teo, C.H., Ng, C.J., Zulkifli, M.Z., Tan, M.H.
    MyJurnal
    The aim of this review was to analyze the gender disparities found as well as the life expectancies in Asia. An analysis of the data on gender disparities as well as life expectancies of the different Asian countries was done based on the World Health Organization (WHO) Global Health Observatory Data Repository as well as the regional government databases. Middle Eastern countries have the highest male to female population ratio. The results show that in terms of population pyramid, Asia is moving towards a more geriatric population. Qatar has the highest life expectancy for men and is the only country in Asia where men live longer than women (difference of 2 years). In general, women in Asia live longer than men. High income countries like Hong Kong, Japan and Singapore have higher life expectancies as compared to those on the lower income nations. The life expectancy of Asian men still lags women. Men’s health care needs to be addressed urgently. The disparity in income-status reflecting the lifespan of men is an impetus for us to narrow the gap of health in Asian countries.
  7. Lee, K.H., Ng, A.B.Y., Tan, T.B., Mossinac, K., To, B.C. Se
    Malays Orthop J, 2008;2(2):11-15.
    MyJurnal
    Gentamicin, whether administered either intravenously, incorporated into bone cement or for local intra-operative irrigation, is a commonly used antibiotic in orthopaedic practice. The former two have been well studied, however the literature on the therapeutic efficacy and safety of gentamicin irrigation is sparse. The objective of this study was to assess systemic absorption of gentamicin irrigation in joint replacement surgery. This was a non-randomised, prospective study. Ninety-eight patients (group A) who underwent total joint replacement and 40 patients (group B) who underwent hemi-arthroplasty were treated traoperatively with gentamicin irrigation. Serum gentamicin levels were assayed at 4 hours and 24 hours post-surgery. Sixteen of 98 patients in group A (16%) and 12 out of 40 patients in group B (30%) were found to have serum gentamicin level above 2mcg/ml at 4 hours post-surgery. We conclude that intra-articular gentamicin irrigation is systemically absorbed at substantial levels.
  8. Ek Zakuan Kalil, Tan, Susan M.K., Loh, Sit Fong, Norazlin Kamal Nor, Suzaily Wahab
    ASEAN Journal of Psychiatry, 2010;11(2):216-219.
    MyJurnal
    Objective: This case report highlights males as victims of sexual abuse, ascertain the factors that are associated with male sexual abuse and outline problems in management of sexual abuse with the presence of co morbidities. Methods: We report a case of sexual abuse in a 14 year old boy who has borderline mental retardation and ADHD. Results: The victim was
    traumatized due to the abuse. The perpetrator was not charged due to lack of evidence of the abuse and stigma. Conclusion: Sexual abuse that occurs in males can be influenced by multiple factors such as the presence of comorbidities. Strong awareness must be present in caregivers to prevent abuse in this population and to take appropriate and early action to effect the necessary intervention.
  9. Sofia Beagem Mohd Noal, Roslinda Shamsudin, Tan, Lee Phin, Wan Khartini Wan Abdul Khodir
    MyJurnal
    Hydroxyapatite (HA) powder was synthesized via wet method using calcium nitrate hydrate (Ca(NO3)2.H2O) and diammonium hydrogen phosphate ((NH4)2HPO4) as raw materials. Powder obtained was milled using various milling speed ranging from 250 to 400 r.p.m. and sintered at 1300°C for 2hrs. Due to the nature of HA powder that decomposed at high temperature, XRD technique have been used in this work to determine the phase composition of the HA powder and also the crystallite size. The unmilled sample was used as the control group. Results show that sufficient heat supply generated from the milling process, initiates the decomposition of HA phase into ȕ-tricalcium phosphate (ȕ-TCP). Decomposition of HA starts to occur at the milling speed of 300 rpm, i.e the formation of ȕ-TCP was occurred at lower sintering temperature. It was believed that the decomposition of HA was associated with the formation of an intermediate phase, oxyapatite. Moreover, the crystallinity and particle size of the produced powder is very much affected by the milling speed and the stability of the HA. All milled powders possess spherical shape particle.
  10. Sherrini Bazir Ahmad, Suhailah Abdullah, Chong, Tin Tan, Lim, Kheng Seang, Goh, Khean Jin
    Neurology Asia, 2016;21(2):191-193.
    MyJurnal
    Faciobrachial dystonic seizures are pathognomonic of leucine-rich glioma inactivated-1 (LGi1) antibody, non-paraneoplastic limbic encephalitis. Faciobrachial dystonic seizures usually precede limbic encephalitis by about a month. It is unknown whether, if untreated, faciobrachial dystonic seizures inevitably progress to limbic encephalitis. We present an LGi1 seropositive patient with a year’s history of faciobrachial dystonic seizures, who achieved remission spontaneously without immunotherapy or antiepileptic drug treatment, and did not develop evidence of limbic encephalitis over a three-year follow-up.
  11. Tan, B.L., Suhaniza, H.J., Lai, C. C., Norazalina, S., Roselina, K., Norhaizan, M.E.
    MyJurnal
    Temukut, or brewers’ rice, is a mixture of broken rice, rice bran, and rice germ. Extensive studies have been conducted on rice bran, which possesses various health benefits. Temukut, however has been less well studied. The present study aimed to investigate the antioxidant and growth inhibition properties of temukut extract using colon cancer (HT-29), ovary cancer (Caov-3), and liver cancer (HepG2) cell lines. The antioxidant activity was determined by the β-carotene bleaching assay, analysis of the DPPH radical scavenging capacity, and a FRAP assay. The total phenolic compounds, oryzanol, vitamin E, and phytic acid levels in temukut were also investigated. The antiproliferative activity was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. There was a significant difference in the cytotoxicity of two types of temukut extract (water and methanol) for HT-29 and Caov-3 cells (p < 0.05) but not for HepG2 cells. The HepG2 cell line is the least sensitive to temukut, (IC50 = 55.30 μg/mL), whereas the highest sensitivity was observed in Caov-3 cells (IC50 =36.67 μg/mL). No cytotoxic effect of temukut was observed on normal cells (BalBlc3T3). Although the content of the phytochemicals studied (total phenolic compounds, vitamin E, oryzanol, and phytic acid) in temukut was lower than that in rice bran, as has been previously reported, the present study demonstrated temukut’s potential to inhibit the proliferation of HT-29, Caov-3, and HepG2 cells.
  12. Nurul, A.A., Tan, S.J., Asiah, A.B., Norliana, G., Nor Shamsuria, O., Nurul, A.S.
    MyJurnal
    Introduction: Stem cells from human exfoliated deciduous teeth (SHED) are highly proliferative, clonogenic cells capable of differentiating into osteoblasts and inducing bone formation. It is a potential alternative for stem cell bone regeneration therapy. However, stem cell therapy carries the risk of immune rejection mediated by inflammatory cytokines of the human defense system. Objective: This preliminary research studies the interaction between SHED and the immune system by determining the inflammatory cytokines profile and osteogenic potential of SHED. Methods: Human fetal osteoblasts (hFOb) cell line and isolated SHED were cultured and total RNA was extracted, followed by reverse transcription cDNA synthesis. Semi-quantitative reverse transcription PCR and Multiplex PCR were performed to detect the expression levels of OPG/RANKL and TNF-α, IL-1β, IL-6, IL-8 and TGF-β in both cell types. Results: Analysis showed that SHED expressed significantly lower amounts of IL-1β, IL-6, and IL-8 compared to hFOB. IL-1β is a potent bone-resorbing factor, while IL-6 and IL-8 induce osteoclastogenesis and osteolysis respectively. SHED did not express TNF-α which stimulates osteoclastic activity. SHED demonstrated high OPG/RANKL ratio, in contrast with that of marrow stem cells described in previous studies. Our findings suggest that SHED may have improved immunomodulatory profile in terms of promoting relatively lower inflammatory reaction during transplant and enhancing bone regeneration. Conclusion: SHED has a potential to be a good source of osteoblasts for bone regeneration therapy. Further studies on the immunomodulatory properties of SHED-derived osteoblasts are necessary to enable stem cell therapy in immunocompetent hosts.
  13. Tan, C.L., Anne Yee, H.A., Majid, S.M., Koh, O.H., Ng, C.G.
    MyJurnal
    Steroid is commonly used for various connective tissue diseases and immunological related disorders. Psychiatric side effects are common in patient with systematic treatment of steroid. The reported prevalence ranges from 6% to 28%. Antidepressant-induced mania occurs when the mood of a patient switches to manic or hypomanic from depression after the use of antidepressant. We reported a case of a 55 year old lady, who presented with agitation and grandiosity after the treatment with antidepressant. She was initially diagnosed as having Bell’s palsy with unilateral facial muscle weakness. Oral prednisolone was prescribed for seven days where she became depressed, having auditory hallucination and delusion of guilt. She was then started on antidepressant where she became irritable, agitated and developed grandiose delusion. The antidepressant was withheld and she was started on atypical antipsychotic. Her condition improved and discharged well after three days of stay in the ward.
  14. Tan, XC, M Makmor-Bakry, Lau, CL, Tajarudin, FW, Raymond, AA
    Neurology Asia, 2015;20(3):235-241.
    MyJurnal
    Poor adherence to antiepileptic drug (AED) therapy can lead to various undesirable complications. Identifying the contributing factors of poor adherence is beneficial in assisting health care professionals to provide optimal interventions to control the seizures. This study aimed to identify the prevalence and factors affecting the adherence level to AED therapy in a multiracial population with epilepsy. This cross-sectional study was conducted at the neurology clinic of a tertiary care setting. Researcher-assisted questionnaire was utilised. Adherence level was assessed using validated Modified Morisky Adherence Scale-8. A total of 145 patients with epilepsy were included in this study. The prevalence of poor adherence to AED therapy was 64.1%. Poor adherence level was significantly associated with younger age (χ2 = 7.609, p = 0.022), medication adverse effects (χ2 = 5.075, p = 0.020), shorter duration of epilepsy (r = 0.180, p = 0.030) and uncertainty about the necessity for AEDs (χ2 = 11.803, p = 0.001).
    Conclusion, prevalence of poor adherence to antiepileptic drugs was high and factors associated with poor adherence to AEDs were identified for a multiracial population with epilepsy.
    Study site: Neurology clinic, Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM), Kuala Lumpur, Malaysia
  15. Ng, K. F., Abbas, F. M. A., Tan, T. C., Azhar, M. E.
    MyJurnal
    Proximate composition, pH and amylose content of ripe Cavendish banana flour (RBF) prepared in this study were compared with all-purpose wheat flour (WF). RBF was found to be significantly (P < 0.05) higher in total carbohydrates and minerals content, while significantly (P < 0.05) lower in protein and fat contents compared with those of WF. Wheat-ripe banana composite flours (W-RBF) prepared by partial substitution of WF with RBF were assessed for swelling power, solubility, pasting properties and gel textural properties. Granular swelling of RBF occurred at a higher temperature compared to that of WF, suggesting that more energy and water were required to cook WF-RBF as the presence of soluble carbohydrates would compete for water and this would eventually delay starch hydration and granular expansion during cooking. Higher substitution with RBF led to higher soluble carbohydrates content, and increase in solubility index of WF-RBF. Partial substitution with RBF also resulted in significant (P < 0.05) decrease in pasting properties. A higher substitution of WF with RBF could reduce starch gelatinisation during cooking and retrogradation owing to the reduction of available starch in WF-RBF. All WF-RBF gels were significantly (P < 0.05) firmer and less sticky compared to WF gels.
  16. New, C.Y., Kantilal, H.K., Tan, M.T.H., Nakaguchi, Y., Nishibuchi, M., Son, R.
    MyJurnal
    Vibrio parahaemolyticus is recognized as a frequent causal agent of human gastroenteritis due to the consumption of raw, undercooked or mishandled seafood in many Asian countries. The number of V. parahaemolyticus cases reported is on the rise, and this becomes a concern to the Asian countries as seafood is favoured by Asians. This study aimed to detect and quantify V. parahaemolyticus in raw oysters and to determine the risk associated with the consumption of raw oysters. A total of 30 oyster samples were collected and analysed in this study. MPN-PCR and MPN-Plating methods were employed and carried out concurrently to determine the prevalence of V. parahaemolyticus in raw oysters. The results showed that the prevalence of total V. parahaemolyticus in oysters was 50.00% (15/30) where the MPN/g range was < 3 – > 11000 MPN/g for MPN-PCR method, and 40.00% (12/30) where the MPN/g range was < 3 – 4300 MPN/g for MPN-Plating method. MPN-PCR method was able to estimate the level of virulence (tdh+ and trh+) V. parahaemolyticus in the raw oysters where 10.00% (3/30) of samples were identified to be in a range of 3 – 30 MPN/g. A microbial risk assessment was conducted based on the enumeration data obtained from MPN-PCR method using @risk. The probability of illness annually was 1.76 X 10-6 with a prediction of 31 cases to occur with respect to the exposed Malaysian population, while the rate per 100,000 people was estimated to be at 0.104. In addition, the antibiogram of V. parahaemolyticus was determined using Kirby Bauer Disk Diffusion Test and the results indicated that the isolates were highly resistant towards Bacitracin (100.00%), Vancomycin (100.00%) and were least resistant to Chloramphenicol (8.70%). The MAR index of the isolates ranged from 0.17 to 0.50. In accordance with the results from this study, the consumption of raw oysters is a risk factor for V. parahaemolyticus infection and proactive actions should be taken to reduce the risk of the pathogen in order to improve public health.
  17. Tan, B. B., Shanmugam, R., Chua, Y. P., Hossain, G., Saw, A.
    Malays Orthop J, 2014;8(2):35-39.
    MyJurnal
    Taylor’s spatial frame (TSF) and Ilizarov external fixators (IEF) are two circular external fixator commonly used to address complex deformity and fractures. There is currently no data available comparing the biomechanical properties of these two external fixators. This study looks into the mechanical characteristics of each system. TSF rings with 6 oblique struts, 4 tube connectors, 4 threaded rods, and 6 threaded rods were compared to a standard IEF rings with 4 threaded rods. Compression and torsional loading was performed to the frame as well as construct with Polyvinylchloride tubes. TSF rings with 4 tube connectors had the highest stiffness (3288 N/mm) while TSF rings with 6 struts was the least stiff. The situation was reversed for torsion where TSF rings with 6 oblique struts had the highest torsional stiffness (82.01 Nm/Degree) and frame Ilizarov rings with 4 threaded rods the least. Standard TSF construct of two ring with 6 oblique struts have better torsional stiffness and lower axial stiffness compared to the standard IEF.
  18. Chua, B. H., Rajinder, S., Tan, S. G., Faridah, Q. Z., Cheah, S. C.
    MyJurnal
    Microsatellites or simple sequence repeats (SSRs) are tandem repeats of DNA of 1-6 bp long. They ubiquitously occur in both eukaryotic and prokaryotic genomes. Because of their abundance,
    they have widespread applications in both animal and plant sciences; such as varietal identification, genetic mapping, QTL mapping, phylogenetic and diversity studies. Thus, SSRs have become valuable DNA markers for molecular biologists and geneticists. Microsatellites are markers
    of choice for many molecular geneticists because of their hypervariability, codominant
    inheritance, multi-allelism and PCR-based assaying of variations that are amenable to automation and high throughput assay. However, the utilization of microsatellite markers in the past was
    hampered by its laborious de novo isolations and species-specific nature.
  19. YEE, ELSIE Y. S., ZAINAL ZAHARI, AHMAD ISMAIL, YAP, C.K., TAN, S. G.
    MyJurnal
    The blood of the Painted Storks (Mycteria leucocephala) and the Milky Storks (M. cinerea) from Malaysia were collected
    invasively from the breeding site. The blood was dropped on to FTA® cards and stored at room temperature. DNA was isolated from
    the FTA® cards through a modification of the Wizard DNA Purification kit (Promega) procedure and PCR was performed with 11 pairs
    of microsatellite primers of the American Wood Stork (M. americana). The collection of a drop of blood onto the card is superior to the
    usual practice of collecting about five ml of blood into a vacuum tube as it causes fewer traumas to these sensitive birds. Moreover, this
    collection procedure can be adopted for use in various wild animal species which are usually found in the remote areas of Malaysia as
    the sample collection cards can be transported back to the laboratory at room temperature. Our procedure allows the typing of several
    molecular genetic markers from just a drop of blood collected in the field and stored at room temperature alleviating the need for storage
    in expensive deep freezers or liquid nitrogen tanks.
  20. Kheng, Seang Lim, Wan, Yuen Choo, Wu, Cathie, Hills, Micheal D., Chong, Tin Tan
    Neurology Asia, 2013;18(3):261-270.
    MyJurnal
    Introduction: None of the quantitative scale for public attitudes toward epilepsy was translated to Chinese language. This study aimed to translate and test the validity and reliability of a Chinese version of the Public Attitudes Toward Epilepsy (PATE) scale. Methods: The translation was performed according to standard principles and tested in 140 Chinese-speaking adults aged more than 18 years for psychometric validation. Results: The items in each domain had similar standard deviations (equal item variance), ranged from 0.85-0.95 in personal domain and 0.75-1.04 in general domain. The correlation between an item and its domain was 0.4 and above for all, and higher than the correlation with the other domain. Multitrait analysis showed the Chinese PATE had a similar variance, floor and ceiling effects, and relative relationship between the domains, as the original PATE. The Chinese PATE scale showed a similar correlation with almost all demographic variable except age. Item means were generally clustered in the factor analysis as hypothesized. The Cronbach’s α values was within acceptable range (0.773) in the personal domain and satisfactory range (0.693) in the general domain. Conclusion: The Chinese PATE scale is a validated and reliable translated version in measuring the public attitudes toward epilepsy.
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