Displaying publications 681 - 700 of 8478 in total

Abstract:
Sort:
  1. Tan TH, Hassan SZ
    Nucl Med Mol Imaging, 2015 Sep;49(3):246-7.
    PMID: 26279701 DOI: 10.1007/s13139-015-0330-8
    We reported a rare finding of isolated pericardial uptake detected by SPECT/CT on posttherapeutic radioiodine whole body scan. This case highlights the usefulness of hybrid SPECT/CT, with subsequent correlation with biochemical results, in ruling out metastatic pericardial effusion in the postsurgical radioiodine remnant ablation setting. The effusion was resolved after reinstituted thyroid replacement therapy. Recombinant thyrotropin is recommended to avoid such rare but life-threatening complication.
  2. Yong Sheng Tan NH, Sachithanandan A
    Med J Malaysia, 2015 Apr;70(2):114-5.
    PMID: 26162393 MyJurnal
    The incidence of premature multi-vessel coronary artery disease (CAD) is on the rise in Malaysia. The pathogenesis of coronary atherosclerosis is multi-factorial with dyslipidaemia being one such risk factor. Elevated total cholesterol (TC), low density lipoprotein cholesterol (LDL-C) and triglycerides (TG) levels are primarily responsible. We analysed the fasting pre-operative lipid profiles of coronary artery bypass graft (CABG) patients with symptomatic severe premature CAD. A majority of patients had an elevated LDL cholesterol level despite being on a statin. Similarly, no patient with an elevated TG level was prescribed a fibrate. Pre-operative control of known dyslipidaemia was suboptimal in young adults with angiographially proven severe symptomatic CAD. This is either due to subtherapeutic dose prescribing or failure to commence appropriate anti-lipid drugs. Collectively, general practitioners, cardiologists and cardiac surgeons must be more diligent in monitoring lipid profiles in such patients and be more meticulous in prescribing therapeutic doses to achieve target control.
  3. Tan ST, Kannan TM
    Dialogues Health, 2023 Dec;2:100094.
    PMID: 36568862 DOI: 10.1016/j.dialog.2022.100094
    BACKGROUND AND PURPOSE: The enforcement of nationwide lockdowns has worsened the obesity epidemic in Malaysia. Therefore, this study aims to compare eating behaviour by relative weight change status among young adults in Malaysia throughout the COVID-19 pandemic.

    DESIGN/METHODOLOGY/APPROACH: Socio-demographics, body height, pre-pandemic body weight, and post-lockdown body weight were self-reported by the young adults. The eating behaviour was assessed using the validated Three-Factor Eating Questionnaire-Revised 18-item (TFEQ-R18). The mean difference in eating behaviour subscales was analysed using MANCOVA with a Bonferroni-adjusted post-hoc test.

    FINDINGS: One-third of the young adults put on body weight due to the lockdowns, with an average relative weight gain of 12.44 ± 9.67%. Conversely, about one-fifth of the young adults reported having lighter body weight in the post-lockdown pandemic phase, with an average relative weight loss of 10.10 ± 4.66%. Young adults in the weight loss category had a significantly higher standardised raw score in cognitive restraints than those in the sustained weight and weight gain categories. In addition, young adults in the weight gain category had statistically higher standardised raw scores in uncontrolled eating and emotional eating compared to those in the sustained weight category. Weight trajectory during the COVID-19 pandemic is linked to disordered eating behaviour among young adults in Malaysia.

    ORIGINALITY/VALUE: The findings presented in this study can be potentially valuable in formulating weight management strategies in the post-COVID-19 era.

  4. Lim HM, Tan KS
    J Rubber Res, 2022;25(5):413-419.
    PMID: 36320319 DOI: 10.1007/s42464-022-00184-1
    Commercially available carboxylated acrylonitrile butadiene latex (XNBR) was physically blended with natural rubber latex (NR) at varying blend ratios to investigate its effect on the mechanical properties and morphology. Methyl methacrylate grafted natural rubber latex (MG) was added to the latex blends as a third polymer to study whether it could enhance the mechanical properties of the latex blend films. It was found that the tensile strength of the blend films irrespective of composition decreased when the two latexes were blended as compared to the virgin latex films. The modulus 300 decreased while the elongation at break and tear strength of the blend films increased gradually as the ratio of NR increased in the blend films. It was found that the MG did not enhance the mechanical properties of the XNBR/NR blend films under the current experimental condition. AFM phase imaging analysis revealed enhanced polymer distribution and evidence of NR-MG-XNBR interactions.
  5. Tan GC, Wong YP
    Malays J Pathol, 2022 Dec;44(3):365.
    PMID: 36591706
    No abstract available.
  6. Tan ST, Rajan DS
    Malays J Med Sci, 2022 Dec;29(6):164-169.
    PMID: 36818892 DOI: 10.21315/mjms2022.29.6.16
    This study aims to compare the feeding practices adopted by stay-at-home mothers and work-from-home mothers during the COVID-19 lockdown. Feeding practices were assessed using a 39-item validated Comprehensive Feeding Practices Questionnaire (CFPQ). The Multivariate Analysis of Covariance (MANCOVA) was used to determine the mean difference in feeding practices by maternal employment status after adjusting for the mother's age and educational attainment and the child's age and gender. The current study revealed that a noticeable proportion of mothers adopted feeding practices that encourage balance and variety (4.45 ± 0.62), promote a healthy environment (4.34 ± 0.81) and impose dietary restrictions for health (4.32 ± 1.04) during the COVID-19 pandemic. There was no significant difference (P > 0.05) in the mean scores of feeding practices across maternal employment status, except for the emotion regulation and modelling subscales. Work-from-home mothers had a significantly higher mean score in the emotion regulation subscale than stay-at-home mothers (F = 14.892, P < 0.001). In comparison to work-from-home mothers, stay-at-home mothers had a significantly higher mean score in the modelling subscale during the COVID-19 pandemic (F = 4.163, P = 0.044). In conclusion, there was just a modest variation in the feeding practices adopted by stay-at-home mothers and work-from-home mothers in this unprecedented pandemic.
  7. Tan ST, Shahril PIA
    Ethics Med Public Health, 2023 Apr;27:100874.
    PMID: 36776244 DOI: 10.1016/j.jemep.2023.100874
    BACKGROUND: The COVID-19 pandemic may have worsened food insecurity and altered the eating behaviour of young adults. Therefore, this cross-sectional study aims to investigate the correlation between moderate-to-severe food insecurity and the risk of eating disorders among young urbanists in Malaysia after the pandemic-led lockdown.

    METHODS: The food security status and the risk of eating disorders were assessed using the validated Food Insecurity Experience Scale (FIES) and Eating Attitude Test (EAT-26), respectively.

    RESULTS: Among the 208 young urbanists, approximately one-third (30.8%) were moderate-to-severe food insecure and about one-fifth (18.8%) were at risk of eating disorders after the nationwide lockdown. With the adjustment of gender, the binary logistic regression analysis revealed that moderate-to-severe food insecure individuals were 2.279 times (P = 0.030, 95% CI = 1.084-4.791) more likely to engage in disordered eating in the aftermath of the COVID-19 pandemic. The findings of partial correlation further indicated that moderate-to-severe food insecurity was positively correlated (rpartial = 0.156, P = 0.024) with bulimia and food preoccupation after the outbreak.

    CONCLUSIONS: Governments and non-governmental organizations must work closely to develop effective policies to address food insecurity and disordered eating behaviour among young urbanists - after the pandemic.

  8. Tan SG, Xu PY
    Trop Biomed, 2022 Dec 01;39(4):524-530.
    PMID: 36602211 DOI: 10.47665/tb.39.4.007
    Canine babesiosis caused by Babesia spp. is a noteworthy tick-borne zoonotic disease of domestic dogs and wild canids. In present study, a total of 556 blood samples were randomly collected from pet dogs in eight cities of Hunan province, subtropical China. Genomic DNA was extracted and Babesia DNA was detected by amplification of partial 18S rRNA gene sequences. A total of 56 (10.1%) blood samples were tested positive for Babesia species. Sequence analysis showed that 29 dogs (5.2%) were positive for B. gibsoni, and other 27 dogs for B. vogeli (4.9%). The age and health status were considered as important risk factors for B. gibsoni and B. vogeli infections in pet dogs in this study (P<0.05). Phylogenetic analysis showed that the examined positive samples were highly clustered in the same branch with B. gibsoni and B. vogeli, respectively. This is the first molecular report of B. gibsoni infection in pet dogs in Hunan province, subtropical China. Our finding has provided a guide for the control of dog babesiosis in China and elsewhere.
  9. Tong SF, Tan CE
    Malays Fam Physician, 2022 Nov 30;17(3):2-8.
    PMID: 36606174 DOI: 10.51866/cm0004
    Evidence-based medicine is the foundation of current medical practice. Suitable evidence is needed to support the holistic approach in clinical practice. Quantitative research produces some evidence needed for disease treatment based on probabilities or averages. However, the practice of evidence-based medicine should be personalised to individual patients without relying solely on an average perspective. Beliefs, values and expectations are unique for each individual and may differ significantly from the average. Therefore, understanding individual differences requires evidence from qualitative research. This is particularly important in family medicine practice, which focuses on holistic care for the person, family and community. Findings from properly conducted qualitative research can offer in-depth and comprehensive accounts on healthcare issues from patient and practice perspectives. Qualitative research also provides explanatory power and analytical transferability, which can be applied into daily family medicine practice. In conclusion, evidence from qualitative research should be rightfully equally acknowledged in family medicine and healthcare.
  10. Yong FL, Tan WC
    Med J Malaysia, 2024 Mar;79(2):191-195.
    PMID: 38553925
    INTRODUCTION: An expanded access program (EAP) is a regulatory mechanism that provides access to an investigational drug, which is not approved for use, in treating life-threatening conditions when all the standard-ofcare treatments are exhausted.

    MATERIALS AND METHODS: An online, anonymous, voluntary survey was conducted to assess the level of knowledge and understanding about EAPs among Malaysian oncologists using SurveyMonkey® between April 2020 and June 2020. Oncologists who had enquired about EAP in the past, were invited at random to participate in the survey. Participants who did not provide consent or failed to complete the survey were excluded.

    RESULTS: A total of 15 oncologists participated in the survey, from both public (46.6%) and private (46.6%) practices. Most respondents (80%) had filed between 1 to 10 EAP applications in the past 12 months. For 73.3% respondents, resources or training were not provided for EAPs from institutions. Around 53% of the respondents reported that their knowledge of EAPs and application processes including country regulations is 'good'. The majority of respondents (73.3%) reported that the educational modules on an overview of EAPs, country regulations and the EAP application process will be beneficial. Most participants received information about the existing EAPs either by reaching out to a pharmaceutical sponsor or through another health care provider and some received information about the existing EAPs through their institutions or patients/caregivers. Most of the respondents recommended that pharmaceutical companies should have readily available information related to the availability and application of EAPs for all pipeline products on their websites.

    DISCUSSION: EAPs are crucial treatment access pathways to provide investigational drugs to patients who have exhausted their treatment options and are not eligible for participation in clinical trials. Malaysian oncologists have a fair understanding about the EAPs and the application processes.

    CONCLUSION: Additional training and awareness are needed for Malaysian oncologists to upscale the utilisation of EAPs.

  11. Tan GC, Wong YP
    Malays J Pathol, 2024 Aug;46(2):231-232.
    PMID: 39207000
    No abstract available.
  12. Muzaffar FAS, Tan ST
    Health Sci Rep, 2024 Sep;7(9):e70042.
    PMID: 39221050 DOI: 10.1002/hsr2.70042
    BACKGROUND AND AIM: Literature suggests that individuals who have recovered from COVID-19 may experience post-COVID conditions, including sleep problems and alterations in smell or taste. Thus, this study aims to compare the sleep quality, diet quality, and weight change between COVID-19-recovered patients and healthy controls.

    METHODS: A matched case-control study involving young adults aged 18-30 years was conducted in the Klang Valley of Malaysia. The young adults were matched in a 1:1 ratio based on their sociodemographic characteristics, including gender, age, marital status, ethnicity, educational attainment, employment status, and monthly earned income. The Pittsburgh Sleep Quality Index was utilized to evaluate sleep quality, and the Diet Quality for Malaysia was used to determine the diet quality of all young adults. The young adults retrospectively recalled their prepandemic body weight in February 2020, while their current body weight in February 2023 was measured using a TANITA HD-314 digital weighing scale.

    RESULTS: Emerging findings suggest that sleep quality and weight change were comparable between COVID-19-recovered patients and healthy controls. However, healthy controls were reported to have a more diversified diet than COVID-19-recovered patients. Nevertheless, no significant main effects or interaction effects of sleep and diet quality on weight change were observed in COVID-19-recovered patients or healthy controls. In this study, young adults also reported suffering from sleep deprivation and deficiency due to the pandemic.

    CONCLUSION: Intervention programs that emphasize avoiding stimulants before bedtime for healthy controls, promoting the importance of having a diversified and balanced diet among the COVID-19-recovered patients, and achieving an ideal body weight for all young adults should be conducted after the COVID-19 pandemic.

  13. Tan YJ, Ong SC
    Value Health, 2024 Dec;27(12):1762-1770.
    PMID: 39127252 DOI: 10.1016/j.jval.2024.07.016
    OBJECTIVES: The Assessment of Quality of Life - 6 Dimensions (AQoL-6D), a generic preference-based measure, is an appealing alternative to EQ-5D-5L for assessing health status in patients with chronic heart failure (HF), given its expanded scope. However, without a Malaysian value set, the AQoL-6D cannot generate health state utility values (HSUVs) to support local economic evaluations. This study intended to develop algorithms for predicting EQ-5D-5L HSUVs from AQoL-6D in an HF population.

    METHODS: Cross-sectional data from a multicenter cohort of 419 HF outpatients were used. Both direct and indirect mapping approaches were attempted using 5 sets of explanatory variables and 8 models (ordinary least squares, Tobit, censored least absolute deviations, generalized linear model, 2-part model [TPM], beta regression-based model, adjusted limited dependent variable mixture model, and multinomial ordinal regression [MLOGIT]). The models' predictive performance was assessed through 10-fold cross-validated mean absolute error [MAE] and root mean squared error [RMSE]). Potential prediction bias was also examined graphically. The best-performing models, with the lowest RMSE and no bias, were then identified.

    RESULTS: Among the models evaluated, TPM, which included age, sex, and 5 AQoL-6D dimension scores as predictors, appears to be the best-performing model for directly predicting EQ-5D-5L HSUVs from AQoL-6D. TPM yielded the lowest MAE (0.0802) and RMSE (0.1116), and demonstrated predictive accuracy for HSUVs >0.2 without significant bias. A MLOGIT model developed for response mapping had suboptimal predictive accuracy.

    CONCLUSIONS: This study developed potentially useful mapping algorithms for generating Malaysian EQ-5D-5L HSUVs from AQoL-6D responses among patients with HF when direct EQ-5D-5L data are unavailable.

  14. Rao H, Tan JBL
    Carbohydr Polym, 2025 Feb 01;349(Pt B):122966.
    PMID: 39638516 DOI: 10.1016/j.carbpol.2024.122966
    Atopic dermatitis (AD) is the most common form of eczema and the most burdensome skin disease globally, affecting nearly 223 million. A major AD predisposition is genetic susceptibility, affecting skin barrier integrity and cell-mediated immunity. Manifesting as red, dry, and itchy skin, basic treatment involves skin hydration with emollients. Despite their effectiveness, poor patient compliance remains a major drawback. In severe cases, medicated emollients are used, but carry risks, including skin thinning, and immunosuppression. Hence, hydrogels have emerged as a promising alternative for AD management based on their ability to improve skin hydration, attributed to their hydrophilicity and high water retention capacity. Moreover, researchers have loaded hydrogels with various compounds for AD management; they also hold the potential to reduce systemic side effects of commercial drugs by enhancing dermal retention. Hydrogels address the challenges of patient compliance based on their non-greasy texture and reduced application frequency. Their appeal also stems from their versatility, as they can be fabricated from varying polymers. Due to their abundance, this review focuses on polysaccharides including alginate, cellulose, chitosan, and hyaluronic acid, which are preferred for fabricating natural and modified natural hydrogels for AD. It also briefly explores hydrogel application methods and key AD models.
  15. Wong BC, Tan HS
    Microb Genom, 2025 Jan;11(1).
    PMID: 39853209 DOI: 10.1099/mgen.0.001339
    In recent decades, Shigella sonnei has surpassed Shigella flexneri as the leading cause of shigellosis, possibly due to species-specific differences in their transcriptomic responses. This study used dual RNA sequencing to analyse the transcriptomic responses of Caenorhabditis elegans and the two Shigella species at early (10 minutes) and late (24 hours) stages of infection. While the nematode defence response was downregulated during both Shigella infections, only infection by S. sonnei led to downregulation of sphingolipid metabolism, cadmium ion response and xenobiotic response in C. elegans. Furthermore, S. sonnei upregulates biofilm formation and energy generation/conservation during infection, acid resistance-related genes and biofilm regulators compared to S. flexneri. These findings highlight species-specific responses during C. elegans infection.
  16. Chow SM, Tan BK
    Support Care Cancer, 2024 Jun 12;32(7):426.
    PMID: 38864924 DOI: 10.1007/s00520-024-08635-8
    PURPOSE: Despite the rapid expansion of mHealth apps, their adoption has not always been based on evidence of effectiveness on patient outcomes. This systematic review aimed to determine the effect of mHealth apps on adherence and symptom to oral anticancer medications (OAMs) and identify the app design that led to such effects.

    METHODS: Pubmed, Cochrane Central, PsycINFO, EMBASE, and WoS were searched from inception to April 2023. Randomised controlled trials (RCTs) that evaluated effects of mHealth apps on primary outcomes OAM adherence and symptom burden were included. Two reviewers independently assessed risk-of-bias using Cochrane Risk-of-Bias version 2 and extracted the data. Quality of evidence was assessed using GRADE. The protocol was registered in PROSPERO (CRD42023406024).

    RESULTS: Four RCTs involving 806 patients with cancer met the eligibility criteria. mHealth apps features included a combinations of symptom reporting, medication reminder, automated alert to care team, OAM and side effect information, one study implemented structured follow-up by a nurse. The intervention group showed no significant difference in OAM adherence (relative ratio 1.20; 95% CI 1.00 to 1.43), but significantly improved symptoms to OAMs with a lower standardised mean symptom burden score of 0.49 (SMD - 0.49; 95% CI - 0.93 to - 0.06), and a 25% lower risk of grade 3 or 4 toxicity (risk ratio 0.75; 95% CI 0.58 to 0.95) compared to usual care.

    CONCLUSION: These findings suggest a potential role for mHealth app in managing OAM side effect. Further research should explore the role of AI-guided algorithmic pathways on the interactive features of mHealth apps.

  17. Goh HY, Tan SS
    J Fluoresc, 2026 Mar;36(3):2053-2077.
    PMID: 41493534 DOI: 10.1007/s10895-025-04661-9
    Para-substituted benzoyl thiourea-based chemosensors L1 (H), L2 (Me), and L3 (Br) incorporating 2-aminobenzothiazole were successfully synthesized and characterized by FT‒IR, UV‒Vis, DSC, NMR, CHNS, and ESI-MS analyses. All ligands exhibited high selectivity and sensitivity toward Cu2+ ions, showing distinct colorimetric and fluorescence “turn-off” responses accompanied by a visible color change from colorless to yellow. The fluorescence quenching was attributed to an intramolecular charge transfer (ICT) mechanism upon Cu2+ coordination. Among the three, L2 displayed the best sensing performance, with limits of detection of 0.95 µM (UV‒Vis) and 6.00 µM (fluorescence), and the highest binding constant (7.81 × 104 M-1) in a DMSO/H2O (10:1, v/v) medium. Job’s plot confirmed a 1:1 ligand-to-metal binding stoichiometry, while DFT calculations revealed a reduction in the HOMO-LUMO energy gaps and enhanced electron delocalization upon Cu2+ complexation. For practical validation, test strips impregnated with the ligands successfully detected Cu2+ in real water samples, and fluorescence recovery upon EDTA addition confirmed the reversibility of the sensing process. These findings underscore the influence of electronic substituents on sensitivity and stability, identifying L2 as a promising chemosensor for environmental Cu2+ monitoring.
  18. Mohd Hisham, M.I., Tan, T.L., Fadzlon, M.Y.
    Medicine & Health, 2016;11(1):92-95.
    MyJurnal
    Stridor in infants with subglottic cyst is rare. Mismanagement of such cases may
    lead to respiratory compromise with a potentially serious and fatal outcome. The
    diversity of the clinical presentations throws a great challenge in the diagnosis of
    subglottic cysts. Manifestations vary as they depend on the size and location of
    the cysts. We report the case of a 6-month-old girl who had a subglottic cyst
    but managed as moderate croup till she developed worsening respiratory acidosis
    which difficult intubation. Any case of premature infants with previous history of
    neonatal intubation presenting with stridor should prompt clinicians to look for
    possible cysts in the larynx. This is important because once the diagnosis is made, appropriate treatment may be given and unnecessary morbidity and mortality may
    be avoided.
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links