Displaying publications 141 - 160 of 449 in total

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  1. Choo KE, Oppenheimer SJ, Ismail AB, Ong KH
    Clin Infect Dis, 1994 Jul;19(1):172-6.
    PMID: 7948526
    A dot enzyme immunoassay (EIA) using 50-kD outer-membrane proteins (OMPs) of Salmonella typhi was compared with the Widal test for the serodiagnosis of typhoid fever in 109 febrile children admitted to a hospital in an endemic area. In the culture-positive typhoid group, the initial dot EIA was positive in 40 of 42 cases and the initial Widal test was positive in 41. In the culture-negative clinical typhoid group, both the dot EIA and the Widal test were positive in 17 of 18 cases. In the nontyphoidal fever group, the dot EIA was negative in all of 49 cases and the Widal test was negative in 44. With culture used as the gold standard, the dot EIA is as sensitive as the Widal test (95% vs. 98%), has a similar high negative predictive value (96% vs. 98%), and is more specific (75% vs. 67%). In addition, the dot EIA offers the advantages of simplicity, speed, early diagnosis, economy, and flexibility (i.e., other diagnostic tests can be conducted simultaneously).
  2. Sudaryanto A, Takahashi S, Iwata H, Tanabe S, Ismail A
    Environ Pollut, 2004 Aug;130(3):347-58.
    PMID: 15182968
    Concentration of butyltin compounds (BTs), including tributyltin (TBT), dibutyltin (DBT) and monobutyltin (MBT) and total tin (SigmaSn) were determined in green mussel (Perna viridis), 10 species of muscle fish and sediment from coastal waters of Malaysia. BTs were detected in all these samples ranging from 3.6 to 900 ng/g wet wt., 3.6 to 210 ng/g wet wt., and 18 to 1400 ng/g dry wt. for mussels, fish and sediments, respectively. The concentrations of BTs in several locations of this study were comparable with the reported values from some developed countries and highest among Asian developing nations. Considerable concentration of BTs in several locations might have ecotoxicological consequences and may cause concern to human health. The parent compound TBT was found to be highest than those of its degradation compounds, DBT and MBT, suggesting recent input of TBT to the Malaysian marine environment. Significant positive correlation (Spearman rank correlation: r2=0.82, P<0.0001) was found between BTs and SigmaSn, implying considerable anthropogenic input of butyltin compounds to total tin contamination levels. Enormous boating activities may be a major source of BTs in this country, although aquaculture activities may not be ignored.
  3. Janaydeh M, Ismail A, Zulkifli SZ, Omar H
    Environ Monit Assess, 2019 Sep 16;191(10):637.
    PMID: 31529162 DOI: 10.1007/s10661-019-7755-y
    Cadmium (Cd) and lead (Pb) are ubiquitous metals widely distributed in the environment, resulting in toxic health effects. This project aims to evaluate Pb and Cd as toxic elements in 15 different tobacco cigarette brands produced and/or sold in Selangor state, Peninsular Malaysia. The concentrations of Pb and Cd in all tobacco brands tested in this study were determined using the air-acetylene flame atomic absorption spectrophotometer (AAS). On average, the concentrations of Pb and Cd in different tobacco brand samples ranged from 3.05 and 0.80 μg/g dw, respectively. The results indicate that assessment mean values of Pb inhaled from smoking one packet of 20 cigarettes were in the range of 1.55-3.51 μg. Furthermore, the concentration of Cd inhaled per packet of cigarettes (20 sticks) is estimated to be 0.04-0.36 μg. However, there was a significant difference in the concentrations of Pb and Cd between the different brands of tobacco cigarettes, among cigarette prices (cheap versus expensive) of tobacco brands. In conclusion, cigarette smokers in Selangor, Malaysia, are heavily exposed to Pb and Cd, and such exposure could adversely affect their health in the long term. The impact of toxic heavy metals on smokers in this state would be an area for future research.
  4. Tan ST, Ismail A, Hamid M, Chong PP, Sun J
    J Food Biochem, 2019 05;43(5):e12843.
    PMID: 31353513 DOI: 10.1111/jfbc.12843
    Unhealthy eating habits and lack of physical activities are among the contributing factors for obesity and diabetes. It has been reported that consumption of naturally occurring phenolics could exert beneficial effects toward these diseases. Therefore, this study aims to evaluate the ability of phenolic-rich soy husk powder extract (SHPE) in modifying the physical and biochemical parameters for obesity and diabetes. Forty-nine Sprague Dawley rats were divided into seven groups, including three supplementary/treatment groups. Rats in supplementary/treatment groups were provided with either 4 mg/kg BW Rosiglitazone Maleate, 250 mg SHPE/kg BW, or 500 mg SHPE/kg BW. The effectiveness of SHPE in alleviating obesity-diabetes was evaluated by measuring body weight (physical parameter), blood glucose metabolisms (biochemical parameters), and PPARγ expression. Findings in the present study revealed that short-term SHPE and Rosiglitazone Maleate administration improved the physical and biochemical parameters of obese-diabetic rats. In addition, SHPE was also demonstrated to upregulate PPARγ expression in adipocytes. These findings suggest that soy husk could emerge as a potential hypoglycemic and anti-adipogenic nutraceutical in future. PRACTICAL APPLICATIONS: This was the first study to evaluate the potential effects of soy husk against the parameters of obese-diabetes in rats. In addition, promising effects derived from this study might explore the possibility of soy husk to be utilized as an antidiabetes nutraceutical.
  5. Aung YN, Nur AM, Ismail A, Aljunid SM
    Clinicoecon Outcomes Res, 2019;11:505-513.
    PMID: 31447570 DOI: 10.2147/CEOR.S209108
    Purpose: Care at ICUs is expensive and variable depending on the type of care that the patients received. Knowing the characteristics of the patient and his or her disease is always useful for improving health services and cost containment.

    Patients and methods: An observational study was conducted at four different intensive care units of an academic medical institution. Demographic characteristics, disease-management casemix information, cost and outcome of the high costing decile, and the rest of the cases were compared.

    Results: A total of 3,220 discharges were included in the study. The high-cost group contributed 35.4% of the ICU stays and 38.8% of the total ICU expenditure. Diseases of the central nervous system had higher odds to be in the top decile of costly patients whereas the cardiovascular system was more likely to be in the non-high cost category. The high-cost patients were more likely to have death as an outcome (19.2% vs 9.3%; p<0.001). The most common conditions that were in the high-cost groups were craniotomy, other ear, nose, mouth, and throat operations, simple respiratory system operations, complex intestinal operations, and septicemia. These five diagnostic groups made up 43% of the high-cost decile.

    Conclusion: High-cost patients utilized almost 40% of the ICU cost although they were only 10% of the ICU patients. The chances of admission to the ICU increased with older age and severity level of the disease. Central nervous system diseases were the major problem of patients aged 46-69 years old. In addition to cost reduction strategies at the treatment level, detailed analysis of these cases was needed to explore and identify pre-event stage prevention strategies.

  6. Ismail A, Idris MYI, Ayub MN, Por LY
    Sensors (Basel), 2018 Dec 10;18(12).
    PMID: 30544660 DOI: 10.3390/s18124353
    Smart manufacturing enables an efficient manufacturing process by optimizing production and product transaction. The optimization is performed through data analytics that requires reliable and informative data as input. Therefore, in this paper, an accurate data capture approach based on a vision sensor is proposed. Three image recognition methods are studied to determine the best vision-based classification technique, namely Bag of Words (BOW), Spatial Pyramid Matching (SPM) and Convolutional Neural Network (CNN). The vision-based classifiers categorize the apple as defective and non-defective that can be used for automatic inspection, sorting and further analytics. A total of 550 apple images are collected to test the classifiers. The images consist of 275 non-defective and 275 defective apples. The defective category includes various types of defect and severity. The vision-based classifiers are trained and evaluated according to the K-fold cross-validation. The performances of the classifiers from 2-fold, 3-fold, 4-fold, 5-fold and 10-fold are compared. From the evaluation, SPM with SVM classifier attained 98.15% classification accuracy for 10-fold and outperformed the others. In terms of computational time, CNN with SVM classifier is the fastest. However, minimal time difference is observed between the computational time of CNN and SPM, which were separated by only 0.05 s.
  7. Azizam NA, Ismail A, Sulong S, Nor NM
    Int J Health Policy Manag, 2019 07 01;8(7):394-402.
    PMID: 31441276 DOI: 10.15171/ijhpm.2019.17
    BACKGROUND: There is limited evidence detailing the cost-effectiveness of psoriasis treatments in the Asian region. Therefore, this study is aimed to evaluate the cost-effectiveness of 3 psoriasis treatments tailored for moderate to severe psoriasis, namely topical and phototherapy (TP), topical and systemic (TS), and topical and biologic (TB) regimens, respectively.

    METHODS: This has been achieved by the participation of a prospective cohort involving a total of 90 moderate to severe psoriasis patients, which has been conducted at 5 public hospitals in Malaysia. The main outcome measures have been evaluated via cost and effectiveness psoriasis area severity index (PASI)-75 and/or body surface area (BSA) <5 and/or dermatology life quality index (DLQI) ≤5), estimated from the societal perspective over a 6-months duration. All costs are based on 2015's recorded Malaysian Ringgit (RM) currency.

    RESULTS: Consequently, TS has been found to be the most cost-effective treatment with the lowest cost/PASI-75/and/or BSA <5 and/or DLQI ≤5, valued at RM9034.56 (US$2582.55). This is followed by TP, which is valued at RM28 080.71 (US$8026.93) and TB, valued at RM54 287.02 (US$15 518.06). Furthermore, one-way sensitivity analysis has highlighted the cost of medication as the most sensitive parameter.

    CONCLUSION: Thus, the input from this study is helpful for policy-makers in determining the first line treatment for moderate to severe psoriasis with consideration of the costs and its effectiveness in Malaysia. This will consequently allow hospitals to justify and provide the essential resources for further research and development, as well as the adoption of better treatment options.

  8. Singh KK, Wan-Nurfahizul-Izzati W, Ismail A
    Gut Pathog, 2010;2(1):9.
    PMID: 20727206 DOI: 10.1186/1757-4749-2-9
    Neopterin is produced by human macrophages/monocytes when stimulated with interferon-gamma. Production of neopterin is found in serum, cerebrospinal fluid (CSF) and urine of patients with infections by viruses, intracellular bacteria and parasites, autoimmune diseases, malignant tumors and patients in allograft rejection episodes.
  9. Syed Ibrahim GP, Isloor AM, Ismail AF, Farnood R
    Sci Rep, 2020 04 23;10(1):6880.
    PMID: 32327672 DOI: 10.1038/s41598-020-63356-2
    In this paper, novel zwitterionic graphene oxide (GO) nanohybrid was synthesized using monomers [2-(Methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA) and N,N'-methylenebis(acrylamide) (MBAAm) (GO@poly(SBMA-co-MBAAm), and incorporated into polysulfone (PSF) hollow fiber membrane for the effectual rejection of dye from the wastewater. The synthesized nanohybrid was characterized using FT-IR, PXRD, TGA, EDX, TEM and zeta potential analysis. The occurrence of nanohybrid on the membrane matrix and the elemental composition were analyzed by XPS. The as-prepared tight ultrafiltration hollow fiber membrane exhibited high rejection of reactive black 5 (RB-5, 99%) and reactive orange 16 (RO-16, 74%) at a dye concentration of 10 ppm and pure water flux (PWF) of 49.6 L/m2h. Fabricated nanocomposite membranes were also studied for their efficacy in the removal of both monovalent (NaCl) and divalent salts (Na2SO4). The results revealed that the membrane possesses complete permeation to NaCl with less rejection of Na2SO4 (<5%). In addition, the nanocomposite membrane revealed outstanding antifouling performance with the flux recovery ratio (FRR) of 73% towards bovine serum albumin (BSA). Therefore, the in-house prepared novel nanocomposite membrane is a good candidate for the effective decolorization of wastewater containing dye.
  10. Ismail ASB, Lim KG, Mahadevan DT
    Med J Malaysia, 2020 05;75(3):260-265.
    PMID: 32467542
    BACKGROUND: Malaysia continues to have a very low cadaveric organ donation rate of 0.48 per million population. The aim of this paper is to assess the attitude, beliefs and knowledge of patients and relatives at three different hospitals in Negeri Sembilan towards organ donation to increase the acceptability of organ transplant.

    METHODS: A cross-sectional descriptive study with convenient sampling was carried out Hospital Tuanku Ja'afar, Hospital Port Dickson and Hospital Tuanku Ampuan Najihah in Negeri Sembilan, Malaysia. The participants answered a questionnaire regarding the source of their information about organ donation, their knowledge about brain death and willingness to donate. The association between variables was tested using chi-squared test or Fischer's exact test as appropriate.

    RESULTS: A total of 385 individuals completed the survey of whom 134 (35%) were willing to donate their organs upon death and 25(19%) were registered donors. Higher educational level (41%), age 30 and below (42%) and people who attended organ donation awareness campaigns (60%) were more willing to donate their organs. Correct understanding of brain death was associated with willingness to be an organ donor. The commonest reason cited for unwillingness to donate was opposition from family members.

    CONCLUSION: Marital status, religion, source of knowledge and occupation are significant factors in willingness to donate organs among Malaysians. Lower age and higher educational level were positive factors towards organ donation. Direct personal contact through awareness campaigns, family and friends has a potential for greater positive impact on organ donation.

  11. Zakaria NS, Saripan MI, Subarimaniam N, Ismail A
    JMIR Serious Games, 2020 Aug 10;8(3):e18247.
    PMID: 32663153 DOI: 10.2196/18247
    BACKGROUND: Gamification has remarkable potential in the learning space. The process of creating a gamified system and its influence on human behavior reflect the interaction between educators and machines.

    OBJECTIVE: The purpose of this pilot study was to present Ethoshunt as a gamification-based mobile app that can be used in teaching and learning ethics.

    METHODS: This study involved a mixed-methods research design. The researchers surveyed 39 undergraduate students who were introduced to Ethoshunt in order to examine the relationships between mobile app usability and positive emotions, ethical competency, and user experience. Affinity diagramming was used as a tool to organize the opinions and experiences of participants using featured gamification elements.

    RESULTS: Game dynamics and game mechanics explained the functionality of Ethoshunt. In addition, the learning flow through Ethoshunt was discussed. Overall, the findings were positive, and mobile app usability had the strongest relationship with positive emotions (r=0.744, P

  12. Choong YS, Lim TS, Chew AL, Aziah I, Ismail A
    J Mol Graph Model, 2011 Apr;29(6):834-42.
    PMID: 21371926 DOI: 10.1016/j.jmgm.2011.01.008
    The high typhoid incidence rate in developing and under-developed countries emphasizes the need for a rapid, affordable and accessible diagnostic test for effective therapy and disease management. TYPHIDOT®, a rapid dot enzyme immunoassay test for typhoid, was developed from the discovery of a ∼50 kDa protein specific for Salmonella enterica serovar Typhi. However, the structure of this antigen remains unknown till today. Studies on the structure of this antigen are important to elucidate its function, which will in turn increase the efficiency of the development and improvement of the typhoid detection test. This paper described the predictive structure and function of the antigenically specific protein. The homology modeling approach was employed to construct the three-dimensional structure of the antigen. The built structure possesses the features of TolC-like outer membrane protein. Molecular docking simulation was also performed to further probe the functionality of the antigen. Docking results showed that hexamminecobalt, Co(NH(3))(6)(3+), as an inhibitor of TolC protein, formed favorable hydrogen bonds with D368 and D371 of the antigen. The single point (D368A, D371A) and double point (D368A and D371A) mutations of the antigen showed a decrease (single point mutation) and loss (double point mutations) of binding affinity towards hexamminecobalt. The architecture features of the built model and the docking simulation reinforced and supported that this antigen is indeed the variant of outer membrane protein, TolC. As channel proteins are important for the virulence and survival of bacteria, therefore this ∼50 kDa channel protein is a good specific target for typhoid detection test.
  13. Timmis J, Ismail AR, Bjerknes JD, Winfield AF
    Biosystems, 2016 Aug;146:60-76.
    PMID: 27178784 DOI: 10.1016/j.biosystems.2016.04.001
    Swarm robotics is concerned with the decentralised coordination of multiple robots having only limited communication and interaction abilities. Although fault tolerance and robustness to individual robot failures have often been used to justify the use of swarm robotic systems, recent studies have shown that swarm robotic systems are susceptible to certain types of failure. In this paper we propose an approach to self-healing swarm robotic systems and take inspiration from the process of granuloma formation, a process of containment and repair found in the immune system. We use a case study of a swarm performing team work where previous works have demonstrated that partially failed robots have the most detrimental effect on overall swarm behaviour. We have developed an immune inspired approach that permits the recovery from certain failure modes during operation of the swarm, overcoming issues that effect swarm behaviour associated with partially failed robots.
  14. Al-Mahmood A, Ismail A, Rashid F, Mohamed W
    J Atheroscler Thromb, 2006 Jun;13(3):143-8.
    PMID: 16835469
    There are numerous reports on insulin resistance in subjects with hypertriglyceridemia but most of the studies involved obese or diabetic subjects. We were interested to study such events but in a population free from other confounders influencing insulin sensitivity (i.e., obesity, glucose intolerance and hypertension). From the population of a cross-sectional study we obtained 12 subjects with isolated hypertriglyceridemia and compared their insulin sensitivity with that of normolipidemic subjects in that study. Insulin sensitivity and secretory status were computed using homeostasis model assessment (HOMA) software. The insulin sensitivity of hypertriglyceridemic subjects was found to be lower than in normolipidemic subjects. For the hypertriglyceridemic subjects, insulin sensitivity (HOMA%S) was 60.07% (values adjusted for age, BMI, waist circumference, and cholesterol levels), which was substantially lower than that of normolipidemic subjects (150.03%; p<0.001). The insulin secretory status (HOMA%B) of the two groups was 248.17% and 124.63%, respectively, and significantly different (p<0.001). Relative insulin resistance, HOMA-IR, of the two groups was 4.90 and 1.54, respectively. We therefore concluded that in comparison with normolipidemic subjects, the insulin sensitivity of otherwise healthy non-obese hypertriglyceridemic subjects was lower, and that B cells had to work harder to compensate for the lowered insulin sensitivity.
  15. Rahman NFA, Shamsudin R, Ismail A, Karim Shah NNA
    Food Sci Biotechnol, 2016;25(Suppl 1):85-90.
    PMID: 30263490 DOI: 10.1007/s10068-016-0102-y
    Changes in physicochemical properties of moisture, ash, and fat contents, and color, due to freeze and oven post-drying treatments on flavedo, albedo, and lamella pomelo fruit peels were investigated. Physicochemical properties influence consumer acceptability and only a few studies are known. Pomelo peels were subjected to freeze drying and conventional drying at 60°C. Fresh pomelo peel was used as a control. Post-drying treatment changes in moisture, ash, and fat contents were observed, compared to controls. Minimal color changes were observed for freeze drying, compared with oven drying for flavedo, albedo, and lamella. Useful information for evaluation of drying treatments that can be used on pomelo peels is provided.
  16. Mahmoudian S, Wahit MU, Imran M, Ismail AF, Balakrishnan H
    J Nanosci Nanotechnol, 2012 Jul;12(7):5233-9.
    PMID: 22966551
    This study presents the preparation of regenerated cellulose (RC)/graphene nanoplatelets (GNPs) nanocomposites via room temperature ionic liquid, 1-ethyl-3-methylimidazolium acetate (EMIMAc) using solution casting method. The thermal stability, gas permeability, water absorption and mechanical properties of the films were studied. The synthesized nanocomposite films were characterized by Fourier transform infrared (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The T20 decomposition temperature of regenerated cellulose improved with the addition of graphene nanoplatelets up to 5 wt%. The tensile strength and Young's modulus of RC films improved by 34 and 56%, respectively with the addition of 3 wt% GNPs. The nanocomposite films exhibited improved oxygen and carbon dioxide gas barrier properties and water absorption resistance compared to RC. XRD and SEM results showed good interaction between RC and GNPs and well dispersion of graphene nanoplatelets in regenerated cellulose. The FTIR spectra showed that the addition of GNPs in RC did not result in any noticeable change in its chemical structure.
  17. Ashraf M, Ismail A, Idris IB, Thaver I
    J Pak Med Assoc, 2021 02;71(2(A)):518-523.
    PMID: 33819241 DOI: 10.47391/JPMA.477
    OBJECTIVE: To identify the key factors that contribute to the successful scale-up of pilot projects, with emphasis on factors that are proven helpful in the successful scaling up of health interventions.

    METHODS: Grey literature was searched at the library of the University of Kebangsaan, Malaysia, on database engines Google Scholar and Science Direct with specific key words to screen papers published from January 2001 to June 2016. They were reviewed to identify the key factors affecting scaling up of health-related pilot projects. Full-text articles were selected, and their reference lists were checked to look for relevant papers. They were short-listed and analysed using thematic approach.

    RESULTS: Of the 47 articles initially screened, 14(29.78%) were shortlisted. Thematic analysis of the selected articles suggested several key factors contributed to the successful scale-up of pilot projects. These factors included evidence-based and effective intervention, community readiness, government support, stakeholders' engagement, and monitoring and supervision.

    CONCLUSIONS: To maximise health coverage in developing and low middle-income countries, scaling up of health interventions on a large scale is essential to improve the health and wellbeing of people. The identified key factors should be considered while planning the scale-up of any health project.

  18. Rawi MH, Abdullah A, Ismail A, Sarbini SR
    ACS Omega, 2021 Jul 20;6(28):17782-17797.
    PMID: 34308014 DOI: 10.1021/acsomega.1c00302
    Acacia gum (AG) is a branched-polysaccharide gummy exudate that consists of arabinose and galactose. The traditional practice in African-Middle Eastern countries uses this gum as medicine. Traditional use of AG is to treat stomach disease, which can be a potential functional food. In this research, commercially available AG from Acacia senegal and Acacia seyal was investigated as the prebiotic. The experiment employed a pH-controlled in vitro colon model inoculated with human fecal microbiota to mimic the human colon. Fermentation samples at 0, 6, 12, and 24 h were brought for short-chain fatty acid (SCFA) analysis using high-performance liquid chromatography and bacterial enumeration via fluorescent in situ hybridization. Results showed that AG significantly promotes Bifidobacteria proliferation similar to fructo-oligosaccharides (FOS) while inhibiting the Clostridium histolyticum group, commonly associated with gut dysbiosis. Acetate, propionate, and butyrate showed a similar trend to FOS (p > 0.05). The AG shows potential against gut dysbiosis, as it promotes gut-probiotics, through modulation of microbial population and SCFA production, especially butyrate.
  19. Ismail A, Chen HC, Faye I, Tang TB
    Sci Rep, 2020 09 28;10(1):15829.
    PMID: 32985560 DOI: 10.1038/s41598-020-72556-9
    Real-time impairment of ocular blood flow (OBF) under common carotid artery stenosis (CCAS) has not been ascertained. We aimed to longitudinally assess the impact of CCAS on OBF using a rabbit model. About 75% stenosis was created by tying the common carotid artery with a plastic mandrel using a nylon suture. The plastic mandrel was gently removed, leaving a ligature. Neurological and behavioral assessments were recorded as the clinical indicator of stroke severity. With laser speckle flowgraphy, the pulse waveform parameters namely mean blur rate (MBR), blowout score (BOS), blowout time (BOT), rising rate, S1-area, falling rate (FR), S2-area, flow acceleration index (FAI), acceleration time index, resistive index (RI) and the difference between the maximum and minimum values of MBR (AC) were assessed in overall, vessel, and tissue regions of the optic nerve head (ONH). Longitudinally, BOS significantly increased until day 19 post-surgery, whereas FAI, RI, and AC significantly decreased. Beyond day 19, BOS, BOT, FR, FAI, RI, and AC significantly decreased. We defined two stages representing impaired vessel conditions, namely the vessel resistance phase, where BOS increases and FAI, RI, and AC decrease, and the vessel elasticity phase where BOS, BOT, FR, FAI, RI and AC decrease. These stages provide information about atherosclerosis, assessable non-invasively through the eye.
  20. Huei CS, Azlan A, Ismail A, Shafie NH, Sultana S
    J Food Sci Technol, 2020 Oct;57(10):3677-3687.
    PMID: 32903949 DOI: 10.1007/s13197-020-04400-x
    Obesity is a serious health concern as it may initiate common chronic diseases. Chili pepper is an important spice that brings spiciness and commonly used in cuisines. However, the antioxidant and anti-obesity properties of chili varieties in Malaysia has not yet been fully investigated. Therefore, this study aimed to determine the antioxidant (content and activity) and anti-obesity properties of five different varieties of local chili peppers. The antioxidant activities of the extracts were determined through ferric-reducing antioxidant power (FRAP) and 2, 2'azinobis-(3-ethyl-benzothiazoline-6-sulphonic acid (ABTS) assays. Cell cytotoxicity of the selected chili extracts was determined in 3T3-L1 pre adipocytes using cell viability assay (MTT) assay. Whereas the ability to inhibit oil accumulation in fully differentiated 3T3-L1 adipocytes of the selected chili pepper extracts was assayed using Oil Red O staining. The results showed that Kulai 568 pulp extract had the highest level of total phenolic content (TPC) (47.88 ± 0.220 mg GAE/g), whereas Centil pulp extract had the highest level of total flavonoid content (TFC) (26.60 ± 0.52 mg QE/g). In term of antioxidant activities, Bara pulp extract had the highest value in FRAP (3.058 ± 0.002 mM Fe2+/mg extract) and ABTS (IC50 = 12.411 ± 0.025). High performance liquid chromatography (HPLC) analysis, Bara pulp extract has the highest level of capsaicin (72.271 ± 0.957 µg/ml). In terms of inhibition of oil accumulation Centil seed extract presented the best result (69.09-92.20%), while Bara pulp extract inhibited the most pancreatic lipase activity (IC50 = 4.84 ± 0.57 µg/ml). Thus, it is suggested that Centil seed and Bara pulp extracts can be a potent antioxidant and anti-obesity agents.
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