Displaying publications 1 - 20 of 32 in total

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  1. Kassim M, Mansor M, Kamalden TA, Shariffuddin II, Hasan MS, Ong G, et al.
    Shock, 2014 Aug;42(2):154-60.
    PMID: 24667629 DOI: 10.1097/SHK.0000000000000179
    Excessive free radical production by immune cells has been linked to cell death and tissue injury during sepsis. Peroxynitrite is a short-lived oxidant and a potent inducer of cell death that has been identified in several pathological conditions. Caffeic acid phenethyl ester (CAPE) is an active component of honeybee products and exhibits antioxidant, anti-inflammatory, and immunomodulatory activities. The present study examined the ability of CAPE to scavenge peroxynitrite in RAW 264.7 murine macrophages stimulated with lipopolysaccharide/interferon-γ that was used as an in vitro model. Conversion of 123-dihydrorhodamine to its oxidation product 123-rhodamine was used to measure peroxynitrite production. Two mouse models of sepsis (endotoxemia and cecal ligation and puncture) were used as in vivo models. The level of serum 3-nitrotyrosine was used as an in vivo marker of peroxynitrite. The results demonstrated that CAPE significantly improved the viability of lipopolysaccharide/interferon-γ-treated RAW 264.7 cells and significantly inhibited nitric oxide production, with effects similar to those observed with an inhibitor of inducible nitric oxide synthase (1400W). In addition, CAPE exclusively inhibited the synthesis of peroxynitrite from the artificial substrate SIN-1 and directly prevented the peroxynitrite-mediated conversion of dihydrorhodamine-123 to its fluorescent oxidation product rhodamine-123. In both sepsis models, CAPE inhibited cellular peroxynitrite synthesis, as evidenced by the absence of serum 3-nitrotyrosine, an in vivo marker of peroxynitrite. Thus, CAPE attenuates the inflammatory responses that lead to cell damage and, potentially, cell death through suppression of the production of cytotoxic molecules such as nitric oxide and peroxynitrite. These observations provide evidence of the therapeutic potential of CAPE treatment for a wide range of inflammatory disorders.
  2. Kassim M, Mansor M, Suhaimi A, Ong G, Yusoff KM
    Int J Mol Sci, 2012;13(9):12113-29.
    PMID: 23109904 DOI: 10.3390/ijms130912113
    Monocytes and macrophages are part of the first-line defense against bacterial, fungal, and viral infections during host immune responses; they express high levels of proinflammatory cytokines and cytotoxic molecules, including nitric oxide, reactive oxygen species, and their reaction product peroxynitrite. Peroxynitrite is a short-lived oxidant and a potent inducer of cell death. Honey, in addition to its well-known sweetening properties, is a natural antioxidant that has been used since ancient times in traditional medicine. We examined the ability of Gelam honey, derived from the Gelam tree (Melaleuca spp.), to scavenge peroxynitrite during immune responses mounted in the murine macrophage cell line RAW 264.7 when stimulated with lipopolysaccharide/interferon-γ (LPS/IFN-γ) and in LPS-treated rats. Gelam honey significantly improved the viability of LPS/IFN-γ-treated RAW 264.7 cells and inhibited nitric oxide production-similar to the effects observed with an inhibitor of inducible nitric oxide synthase (1400W). Furthermore, honey, but not 1400W, inhibited peroxynitrite production from the synthetic substrate 3-morpholinosydnonimine (SIN-1) and prevented the peroxynitrite-mediated conversion of dihydrorhodamine 123 to its fluorescent oxidation product rhodamine 123. Honey inhibited peroxynitrite synthesis in LPS-treated rats. Thus, honey may attenuate inflammatory responses that lead to cell damage and death, suggesting its therapeutic uses for several inflammatory disorders.
  3. Fitzrol DN, Ang SY, Suhaimi A, Yeap TB
    BMJ Case Rep, 2023 Apr 11;16(4).
    PMID: 37041040 DOI: 10.1136/bcr-2022-253959
    Polymyxin B (PB) is a polypeptide bactericidal antibiotic that is commonly used for extensively drug-resistant (XDR) microorganisms such as Acinetobacter baumanii and Klebsiella pneumoniae It can be administered intravenously or intrathecally. Common side effects are nephrotoxicity, neurotoxicity, pruritus and skin hyperpigmentation (SH). The latter is an uncommon adverse reaction of intravenously administered PB. We report a rare occurrence of PB-induced SH secondary to intrathecal administration of PB in a child with A. baumanii XDR ventriculitis. We describe the management of him and a brief review of PB.
  4. Lim E, Lim R, Suhaimi A, Chan BT, Wahab AKA
    J Back Musculoskelet Rehabil, 2018;31(6):1041-1047.
    PMID: 30149436 DOI: 10.3233/BMR-171042
    BACKGROUND: Low frequency sound wave stimulation therapy has become increasingly popular in the rehabilitation fields, due to its ease, less fatiguing and time efficient application.

    OBJECTIVE: This 12-week pilot study examines the efficacy of applying low frequency sound wave stimulation (between 16-160 Hz) through both hands and feet on relieving pain and improving functional ability in patients with chronic back pain.

    METHODS: Twenty-three participants with chronic shoulder (eleven participants) or low back pain (twelve participants) underwent a 12-week vibration therapy program of three sessions per week. A low frequency sound wave device comprising four piezoelectric vibration-type tactile tranducers enclosed in separate 5-cm diameter circular plates, which generate sinusoidal vibratory stimuli at a frequency of 16-160 Hz, was used in this study. Primary outcome measure was pain sensation measured using the Visual Analogue Scale (P-VAS). The secondary outcome measures were pain-related disability measured using the pain disability index (PDI) and quality of life measured using the SF-12.

    RESULTS: At week 12, significant reductions in pain sensation and pain-related disability were observed, with mean reductions of 3.5 points in P-VAS and 13.5 points in the PDI scores. Sixty-five percent of the participants had a reduction of at least 3 points on the P-VAS score, while 52% participants showed a decrease of at least 10 points in the PDI score. Significant improvement was observed in the SF-12 physical composite score but not the mental composite score.

    CONCLUSIONS: The preliminary findings showed that passive application of low frequency sound wave stimulation therapy through both hands and feet was effective in alleviating pain and improving functional ability in patients with chronic back pain.

  5. Hanapi NHM, Yuliawiratman BS, Lai LL, Halil H, Koo JG, Suhaimi A
    Obes Surg, 2018 07;28(7):2130-2134.
    PMID: 29696574 DOI: 10.1007/s11695-018-3256-2
    Bariatric surgery offers a therapeutic alternative with favourable weight management, cardiovascular, metabolic and functional outcomes. Bariatric individuals often have functional impairments pre-operatively that can be addressed to improve post-operative results and eventual functional independence. Multidisciplinary team offers the best approach to address peri-operative needs and sustainable weight loss thereafter. We exemplified the application of cardiac rehabilitation therapeutic model in managing two bariatric clients with specific bariatric-related challenges. Our approach focuses on adaptive physical activity, sustainable lifestyle changes to promote post-operative weight loss through education and problem solving as well as secondary prevention of cardiovascular disease. Putting emphasis on addressing physical and psychosocial barriers towards physical activity alongside nutritional aspects potentially confers sustained if not better outcomes on weight reduction and functional improvement.
  6. Wan Yusoff WR, Hanafi MH, Ibrahim AH, Kassim NK, Suhaimi A
    J Taibah Univ Med Sci, 2021 Apr;16(2):288-291.
    PMID: 33897336 DOI: 10.1016/j.jtumed.2020.12.003
    Alien hand syndrome (AHS) is a rare post-stroke complication. Although the occurrence of AHS after stroke is rare, it can have a disabling impact on the lifestyle and career of the patients post stroke. It is difficult to distinguish AHS from the non-dominant hemispheric infarction with symptoms of hemianopia and left hemineglect, as patients with AHS can also have neglect as well as behaviour symptoms if the frontal lobe is involved. We report the case of a 62-year-old gentleman who was admitted to the rehabilitation ward and was treated for neglect and apraxia following right middle cerebral artery stroke. After further re-evaluation, the patient was diagnosed with AHS. Functionally, he improved and the symptoms disappeared four months after the stroke. In this case report, we highlight the features of AHS and provide a unique management approach.
  7. Kwa Siew Kim, Arshat H, Abdul Jalil AH, Ang Eng Suan, Suhaimi A
    Malays J Reprod Health, 1987 Jun;5(1):11-6.
    PMID: 12269176
  8. Ibrahim NS, Rampal S, Lee WL, Pek EW, Suhaimi A
    Cardiovasc Eng Technol, 2024 Feb;15(1):12-21.
    PMID: 37973701 DOI: 10.1007/s13239-023-00693-z
    PURPOSE: Photoplethysmography measurement of heart rate with wrist-worn trackers has been introduced in healthy individuals. However, additional consideration is necessary for patients with ischemic heart disease, and the available evidence is limited. The study aims to evaluate the validity and reliability of heart rate measures by a wrist-worn photoplethysmography (PPG) tracker compared to an electrocardiogram (ECG) during incremental treadmill exercise among patients with ischemic heart disease.

    METHODS: Fifty-one participants performed the standard incremental treadmill exercise in a controlled laboratory setting with 12-lead ECG attached to the patient's body and wearing wrist-worn PPG trackers.

    RESULTS: At each stage, the absolute percentage error of the PPG was within 10% of the standard acceptable range. Further analysis using a linear mixed model, which accounts for individual variations, revealed that PPG yielded the best performance at the baseline low-intensity exercise. As the stages progressed, heart rate validity decreased but was regained during recovery. The reliability was moderate to excellent.

    CONCLUSIONS: Low-cost trackers AMAZFIT Cor and Bip validity and reliability were within acceptable ranges, especially during low-intensity exercise among patients with ischemic heart disease recovering from cardiac procedures. Though using the tracker as part of the diagnosis tool still requires more supporting studies, it can potentially be used as a self-monitoring tool with precautions.

  9. Hairi F, Ong CH, Suhaimi A, Tsung TW, bin Anis Ahmad MA, Sundaraj C, et al.
    Asia Pac J Public Health, 2003;15(1):37-43.
    PMID: 14620496
    A cross-sectional survey was conducted to assess the level of knowledge, attitude and practices concerning dengue and its vector Aedes mosquito among selected rural communities in the Kuala Kangsar district from 16-25th June, 2002. It was found that the knowledge of the community was good. Out of the 200 respondents, 82.0% cited that their main source of information on dengue was from television/radio. The respondents' attitude was found to be good and most of them were supportive of Aedes control measures. There is a significant association found between knowledge of dengue and attitude towards Aedes control (p = 0.047). It was also found that good knowledge does not necessarily lead to good practice. This is most likely due to certain practices like water storage for domestic use, which is deeply ingrained in the community. Mass media is an important means of conveying health messages to the public even among the rural population, thus research and development of educational strategies designed to improve behaviour and practice of effective control measures among the villagers are recommended.
  10. Al-Abd NM, Nor ZM, Al-Adhroey AH, Suhaimi A, Sivanandam S
    PMID: 24298292 DOI: 10.1155/2013/986573
    Lymphatic filariasis is a parasitic infection that causes a devastating public health and socioeconomic burden with an estimated infection of over 120 million individuals worldwide. The infection is caused by three closely related nematode parasites, namely, Wuchereria bancrofti, Brugia malayi, and B. timori, which are transmitted to human through mosquitoes of Anopheles, Culex, and Aedes genera. The species have many ecological variants and are diversified in terms of their genetic fingerprint. The rapid spread of the disease and the genetic diversification cause the lymphatic filarial parasites to respond differently to diagnostic and therapeutic interventions. This in turn prompts the current challenge encountered in its management. Furthermore, most of the chemical medications used are characterized by adverse side effects. These complications urgently warrant intense prospecting on bio-chemicals that have potent efficacy against either the filarial worms or thier vector. In lieu of this, we presented a review on recent literature that reported the efficacy of filaricidal biochemicals and those employed as vector control agents. In addition, methods used for biochemical extraction, screening procedures, and structure of the bioactive compounds were also presented.
  11. Chan SC, Beh HC, Jeevajothi Nathan J, Sahadeevan Y, Patrick Engkasan J, Chuah SY, et al.
    J Glob Health, 2023 Aug 11;13:03047.
    PMID: 37563918 DOI: 10.7189/jogh.13.03047
  12. Chan SC, Patrick Engksan J, Jeevajothi Nathan J, Sekhon JK, Hussein N, Suhaimi A, et al.
    J Glob Health, 2023 Oct 27;13:04099.
    PMID: 37883199 DOI: 10.7189/jogh.13.04099
    BACKGROUND: The COVID-19 pandemic has underscored the importance of remote healthcare and home-based interventions, including pulmonary rehabilitation, for patients with chronic respiratory diseases (CRDs). It has also heightened the vulnerability of individuals with underlying respiratory conditions to severe illness from COVID-19, necessitating exploration and assessment of the feasibility of delivering home - pulmonary rehabilitation (home-PR) programmes for CRD management in Malaysia and other countries. Home-based programmes offer a safer alternative to in-person rehabilitation during outbreaks like COVID-19 and can serve as a valuable resource for patients who may be hesitant to visit healthcare facilities during such times. We aimed to assess the feasibility of delivering a home-PR programme for patients with CRDs in Malaysia.

    METHODS: We recruited patients with CRDs from two hospitals in Klang Valley, Malaysia to a home-PR programme. Following centre-based assessment, patients performed the exercises at home (five sessions/week for eight weeks (total 40 sessions)). We monitored the patients via weekly telephone calls and asked about adherence to the programme. We measured functional exercise capacity (6-Minutes Walking Test (6MWT) and Health-Related Quality-of-Life (HRQoL) (COPD Assessment Test (CAT)) at baseline and post-PR at nine weeks. We conducted semi-structured interviews with 12 purposively sampled participants to explore views and feedback on the home-PR programme. The interviews were audio recorded, transcribed verbatim, and analysed thematically.

    RESULTS: We included 30 participants; two withdrew due to hospitalisation. Although 28 (93%) adhered to the full programme, only 11 (37%) attended the post-PR assessment because COVID-19 movement restrictions in Malaysia at that time prevented attendance at the centre. Four themes emerged from the qualitative analysis: involvement of family and caregivers, barriers to home-PR programme, interactions with peers and health care professionals, and programme enhancement.

    CONCLUSION: Despite the COVID-19 pandemic, the home-PR programme proved feasible for remote delivery, although centre-based post-PR assessments were not possible. Family involvement played an important role in the home-PR programme. The delivery of this programme can be further improved to maximise the benefit for patients.

  13. Abdul Kadir N, Wahab MSA, Mohd Suhaimi A, Othman N
    Res Social Adm Pharm, 2023 Nov;19(11):1412-1423.
    PMID: 37612154 DOI: 10.1016/j.sapharm.2023.08.004
    BACKGROUND: The involvement of community pharmacists (CPs) in the provision of pretravel health services is increasing due to the increase in international travelers, the increased risk of travel-related diseases, and the expansion of pharmacists' scope of practice in some countries. In order to improve the quality and effectiveness of pretravel health care provided by CPs, a greater understanding of the practices, barriers, and facilitators is required.

    OBJECTIVE: This scoping review aimed to identify and describe existing studies on pretravel health services provided by CPs, and the barriers, and facilitators.

    METHODS: The PubMed, Science Direct, Scopus, and Web of Science databases were searched for pertinent studies from their inception to February 2023. A manual search was also conducted of prominent travel medicine journals, Google Scholar, and the reference lists of the included studies. Potential barriers and facilitators were mapped to the 14 domains of the Theoretical Domains Framework (TDF).

    RESULTS: There were twelve studies included in the review. Pretravel health advice was the most prevalent form of pretravel health services. Within ten domains of the TDF, various factors that either facilitate or impede the provision of pretravel health services by CPs were identified.

    CONCLUSION: The provision of pretravel health services by CPs may be affected by a number of practitioner and organizational factors. The provision of pretravel health services can be facilitated by informational resources, training and education in travel medicine, and collaboration amongst healthcare providers.

  14. Tun Firzara AM, Teo CH, Teh SY, Su JY, Mohd Zaini HS, Suhaimi A, et al.
    Fam Pract, 2023 Dec 22;40(5-6):742-752.
    PMID: 37237425 DOI: 10.1093/fampra/cmad044
    BACKGROUND: Low back pain (LBP) is a common reason for primary care consultation; yet doctors often find managing it challenging. An electronic decision support system for LBP (DeSSBack) was developed based on an evidence-based risk stratification tool to improve the management of patients with LBP in a Malaysian primary care setting. This pilot study aimed to assess the feasibility, acceptability, and preliminary effectiveness of DeSSBack for the conduct of a future definitive trial.

    METHODS: A pilot cluster randomized controlled trial (cRCT) with qualitative interviews was conducted. Each primary care doctor was considered a cluster and randomized to either the control (usual practice) or intervention (DeSSBack) group. Patient outcomes including Roland-Morris Disability Questionnaire (RMDQ), Hospital Anxiety and Depression Scale, and a 10-point pain rating scale were measured at baseline and 2-month postintervention. The doctors in the intervention group were interviewed to explore feasibility and acceptability of using DeSSBack.

    RESULTS: Thirty-six patients with nonspecific LBP participated in this study (intervention n = 23; control n = 13). Fidelity was poor among patients but good among doctors. The RMDQ and anxiety score had medium effect sizes of 0.718 and 0.480, respectively. The effect sizes for pain score (0.070) and depression score were small (0.087). There was appreciable acceptability and satisfaction with use of DeSSBack, as it was helpful in facilitating thorough and standardized management, providing appropriate treatment plans based on risk stratification, improving consultation time, empowering patient-centred care, and easy to use.

    CONCLUSIONS: A future cRCT to evaluate the effectiveness of DeSSBack is feasible to be conducted in a primary care setting with minor modifications. DeSSBack was found useful by doctors and can be improved to enhance efficiency.

    TRIAL REGISTRATION: The protocol of the cluster randomized controlled trial was registered at ClinicalTrials.gov (NCT04959669).

  15. Goonasegaran AR, Suhaimi A, Mokhtar AH
    J Sports Med Phys Fitness, 2022 Feb;62(2):229-237.
    PMID: 33314883 DOI: 10.23736/S0022-4707.20.11686-4
    BACKGROUND: Primary knee osteoarthritis is the leading cause of chronic disability and pain among adults worldwide. Retro-walking has been shown to reduce patellofemoral pain, increases functional capability while strengthening the lower limbs and improving proprioception and balance. We aim to examine the effects of retro-walking on symptoms, pain, and perceived ability to perform daily activities in comparison to forward-walking in subjects with primary knee osteoarthritis.

    METHODS: This was a single-blinded, randomized control trial involving 34 subjects between the age of 45-70 years (58.41±5.93) comparing retro-walking (RW) to forward-walking (FW). Subjects were randomly allocated to receive either RW with structured resistance training (SRT) or FW with SRT; 3 times a week for 12 weeks. The symptoms, pain, and function of daily living sub scores of the Knee Injury and Osteoarthritis Outcome Score (KOOS) along with Timed up and go (TUG) and Chair stand test (CST) were assessed at baseline and after 12 weeks. The outcomes were analyzed with two-way repeated measure analysis of variance.

    RESULTS: Significant improvements for all outcomes were observed intra-group (P value <0.05) after 12 weeks. The KOOS sub scores, TUG and CST times was not statistically significant between study groups (P value >0.05). However, the partial eta squared scores for all outcomes were better in the RW group compared to FW except for CST.

    CONCLUSIONS: It can be concluded that RW is a feasible and non-inferior option to FW in the rehabilitation of subjects with bilateral knee OA.

  16. Yuan CJ, Varathan KD, Suhaimi A, Ling LW
    J Rehabil Med, 2023 Jan 09;55:jrm00348.
    PMID: 36306152 DOI: 10.2340/jrm.v54.2432
    OBJECTIVE: To explore machine learning models for predicting return to work after cardiac rehabilitation.

    SUBJECTS: Patients who were admitted to the University of Malaya Medical Centre due to cardiac events.

    METHODS: Eight different machine learning models were evaluated. The models included 3 different sets of features: full features; significant features from multiple logistic regression; and features selected from recursive feature extraction technique. The performance of the prediction models with each set of features was compared.

    RESULTS: The AdaBoost model with the top 20 features obtained the highest performance score of 92.4% (area under the curve; AUC) compared with other prediction models.

    CONCLUSION: The findings showed the potential of using machine learning models to predict return to work after cardiac rehabilitation.

  17. Zainuddin Z, Teh LK, Suhaimi AW, Ismail R
    J Clin Pharm Ther, 2006 Apr;31(2):187-91.
    PMID: 16635054
    CYP2C9 is one of the major drug metabolizing enzymes for many drugs including warfarin, NSAIDs and losartan. It is polymorphic in many populations. Data on the distribution of CYP2C9 and the implication of CYP2C9 polymorphism in the Malaysian population is lacking. Our objectives were therefore to investigate the prevalence of CYP2C9 variants among unrelated healthy volunteers of Malays, Chinese and Indians in Malaysia.
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