Displaying publications 21 - 40 of 69 in total

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  1. Fulltext The ethnic characteristics and prevalence of diabetes mellitus, hypertension and hyperlipidaemia in patients who underwent coronary artery bypass grafting in Hospital Universiti Kebangsaan Malaysia
    Chiam P, Abdullah F, Chow HK, Adeeb SMSJ, Yousafzai MS
    Med J Malaysia, 2002 Dec;57(4):460-6.
    PMID: 12733171
    A retrospective study was done on 302 patients who had undergone coronary artery bypass grafting (CABG) in Hospital Universiti Kebangsaan Malaysia--46.0% were Chinese, 40.1% were Malays and 11.6% were Indians. Overall and irrespective of race and sex, the prevalence of diabetes mellitus, hypertension and hyperlipidaemia was 45.7%, 78.8% and 89.1% respectively indicating that hyperlipidaemia was the most prevalent risk factor amongst this cohort. The Indians had the highest prevalence of the three risk factors. The Chinese and the Malays most frequently presented with the combination of hypertension and hyperlipidaemia.
  2. Fulltext Interleukin 1β (+3954; -511) Genotype Polymorphism and its Association with Severe Chronic Generalized Periodontitis in the Malaysian Population
    Arora S, Ramachandra SS, Abdullah F, Gundavarapu KC
    Contemp Clin Dent, 2017 Jan-Mar;8(1):102-105.
    PMID: 28566859 DOI: 10.4103/ccd.ccd_1177_16
    INTRODUCTION: Single-nucleotide polymorphisms (SNPs) in interleukin 1β (IL-1β) gene have been known to be associated with increased susceptibility to chronic periodontitis among various ethnic populations. SNPs are more commonly observed at loci + 3954 and - 511. The aim of this study was to evaluate the role of IL-1β gene polymorphism at loci +3954 and - 511, and its association with severe chronic generalized periodontitis among the ethnic Malay, Chinese, and Indians within the Malaysian population.

    MATERIALS AND METHODS: Saliva samples from 120 subjects (60 cases and 60 controls) in the age group of 25-50 years were collected for isolation of genetic material using Norgen technique. Clinical attachment loss of ≥5 mm was considered as severe chronic generalized periodontitis. SNP's at loci +3954 and - 511 were identified and analyzed using Kompetitive Allele Specific Polymerase Chain Reaction Genotyping System (KASP™). Differences in the allele/genotype frequencies were assessed by Chi-square test (P < 0.05).

    RESULTS: On the comparison between cases and controls of IL-1β genotype polymorphism (+3954 and - 511), the difference in the genotype frequencies was statistically insignificant in all the three ethnicities. The genotype frequency in both groups in all three ethnicities of the Malaysian population was similar.

    CONCLUSION: IL-1β genotype polymorphism at +3954 and - 511 was found to be not associated with severe chronic generalized periodontitis among the three ethnicities in Malaysia. Studies with larger sample size should be done to confirm the findings of this study.
  3. Current advancements on the fabrication, modification, and industrial application of zinc oxide as photocatalyst in the removal of organic and inorganic contaminants in aquatic systems
    Abdullah FH, Bakar NHHA, Bakar MA
    J Hazard Mater, 2022 Feb 15;424(Pt B):127416.
    PMID: 34655867 DOI: 10.1016/j.jhazmat.2021.127416
    Industrial wastewaters contain hazardous contaminants that pollute the environment and cause socioeconomic problems, thus demanding the employment of effective remediation procedures such as photocatalysis. Zinc oxide (ZnO) nanomaterials have emerged to be a promising photocatalyst for the removal of pollutants in wastewater owing to their excellent and attractive characteristics. The dynamic tunable features of ZnO allow a wide range of functionalization for enhanced photocatalytic efficiency. The current review summarizes the recent advances in the fabrication, modification, and industrial application of ZnO photocatalyst based on the analysis of the latest studies, including the following aspects: (1) overview on the properties, structures, and features of ZnO, (2) employment of dopants, heterojunction, and immobilization techniques for improved photodegradation performance, (3) applicability of suspended and immobilized photocatalytic systems, (4) application of ZnO hybrids for the removal of various types of hazardous pollutants from different wastewater sources in industries, and (5) potential of bio-inspired ZnO hybrid nanomaterials for photocatalytic applications using renewable and biodegradable resources for greener photocatalytic technologies. In addition, the knowledge gap in this field of work is also highlighted.
  4. Fulltext How mountains and elevations shape the spatial distribution of beetles in Peninsular Malaysia
    Musthafa MM, Abdullah F, Martínez-Falcón AP, de Bruyn M
    Sci Rep, 2021 03 11;11(1):5791.
    PMID: 33707515 DOI: 10.1038/s41598-021-84965-5
    This study was conducted to assess the spatial distribution of beetles in mountain ecosystems and their elevational diversity. Malaise, pitfall and light traps were used to collect beetles from nine different mountains in Malaysia from September 2014 to September 2016, where from Gunung Angsi, Gunung Belumut, Gunung Basor and Gunung Tebu samples were collected at 500 m and 1000 m (above sea level) elevations, while beetles were sampled at 500 m, 1000 m and 1500 masl from Gunung Benom, Gunung Inas, Cameron Highland, Gunung Besar Hantu and Gunung Basor. In this study, 9628 beetles belonging to 879 different species were collected with highest representation from family Staphylinidae and Carabidae. Chamah Highland had the highest beetle diversity followed by Gunung Benom, Gunung Inas, Cameron Highland, Gunung Belumut, and Gunung Basor. Chamah Highland was different to all mountains on abundance and species richness. The highest species richness was observed at 1000 m, followed by 500 m and 1500 m. We identified characteristic species associated with habitat conditions at Gunung Benoum and Gunung Inas mountains, according to INDVAL values. The beetle diversity of the sampled mountains showed multiple alpha and beta patterns according to type of mountain ecosystem and elevation, providing guidelines for the scientific community to underpin conservation efforts in Malaysia.
  5. Integration of chemical health risk assessment (CHRA) and indoor air quality (IAQ) assessment: from a Malaysian perspective
    Abdullah F, Jaafar MH, Ahmad MI, Ismail ZS
    Int J Environ Health Res, 2024 May;34(5):2280-2298.
    PMID: 37552824 DOI: 10.1080/09603123.2023.2243843
    In Malaysia, chemical management in workplaces is managed under the Occupational Safety and Health Act 1994. Hence, the introduction of the Occupational Safety and Health (Use and Standards of Exposure of Chemicals Hazardous to Health) Regulations 2000 has strengthened the chemical management level in workplaces, including higher academic institutions. The introduction of chemical health risk assessment through the regulation required management to conduct the assessment at workplaces. Poor levels of Indoor Air Quality (IAQ) in chemical laboratories may also cause discomfort among workers when there is sick building syndrome in laboratories. IAQ is managed through the Industry Code of Practice on Indoor Air Quality 2010. Although both are different in method and approach, both are meant to ensure the workers' safety and comfort. This study is aimed to investigate the need to integrate both chemical health risk assessment and IAQ assessment in laboratories to ensure optimum safety levels among workers.
  6. Fulltext It is not depression: A case report of a 37-year-old firefighter with frontotemporal dementia
    Abdullah F, Abd Razak AA, Mohd Idris UK
    Malays Fam Physician, 2023;18:46-100.
    PMID: 37719694 DOI: 10.51866/cr.348
    A 37-year-old married, right-handed active firefighter presented to the primary care clinic with a self-report of difficulties in memorising and recalling information associated with declining work performance. Collaborative history-taking revealed that he also experienced emotional and social withdrawal, apathy, irritability and distractibility. He was initially diagnosed with major depressive disorder but showed no improvement with an antidepressant. This young man with no history of hereditary neurodegenerative disorder had further deterioration in cognitive function, predominantly executive behaviours, with progressive aphasia. Brain magnetic resonance imaging revealed cerebral atrophy predominant over the frontotemporal lobe. Positron emission tomography showed fluorodeoxyglucose hypometabolism at the bifrontal and left parietal and temporal cortices, consistent with frontotemporal dementia. He required institutionalisation with full nursing care less than 24 months after the onset of the symptoms. This case highlights the need for diagnostic consideration of dementia in young individuals presenting with cognitive impairment among other symptoms. It also emphasises the importance of obtaining collateral information from close relatives to avoid misdiagnosis and addresses the psychosocial impact of dementia at a young age.
  7. Sequence analysis and gene expression of putative exo- and endo-glucanases from oil palm (Elaeis guineensis) during fungal infection
    Yeoh KA, Othman A, Meon S, Abdullah F, Ho CL
    J Plant Physiol, 2012 Oct 15;169(15):1565-70.
    PMID: 22854183 DOI: 10.1016/j.jplph.2012.07.006
    Glucanases are enzymes that hydrolyze a variety β-d-glucosidic linkages. Plant β-1,3-glucanases are able to degrade fungal cell walls; and promote the release of cell-wall derived fungal elicitors. In this study, three full-length cDNA sequences encoding oil palm (Elaeis guineensis) glucanases were analyzed. Sequence analyses of the cDNA sequences suggested that EgGlc1-1 is a putative β-d-glucan exohydolase belonging to glycosyl hydrolase (GH) family 3 while EgGlc5-1 and EgGlc5-2 are putative glucan endo-1,3-β-glucosidases belonging to GH family 17. The transcript abundance of these genes in the roots and leaves of oil palm seedlings treated with Ganoderma boninense and Trichoderma harzianum was profiled to investigate the involvement of these glucanases in oil palm during fungal infection. The gene expression of EgGlc1-1 in the root of oil palm seedlings was increased by T. harzianum but suppressed by G. boninense; while the gene expression of both EgGlc5-1 and EgGlc5-2 in the roots of oil palm seedlings was suppressed by G. boninense or/and T. harzianum.
  8. Optimal Enzyme-Assisted Extraction of Phenolics from Leaves of Pongamia pinnata via Response Surface Methodology and Artificial Neural Networking
    Aziz T, Qadir R, Anwar F, Naz S, Nazir N, Nabi G, et al.
    Appl Biochem Biotechnol, 2024 Sep;196(9):6508-6525.
    PMID: 38386143 DOI: 10.1007/s12010-024-04875-w
    This research work seeks to evaluate the impact of selected enzyme complexes on the optimised release of phenolics from leaves of Pongamia pinnata. After preliminary solvent extraction, the P. pinnata leaf extract was subjected to enzymatic treatment, using enzyme cocktails such as kemzyme dry-plus, natuzyme, and zympex-014. It was noticed that zympex-014 had a greater extract yield (28.0%) than kemzyme dry-plus (17.0%) and natuzyme (18.0%). Based on the better outcomes, zympex-014-based extract values were subsequently applied to several RSM parameters. The selected model is suggested to be significant by the F value (12.50) and R2 value (0.9669). The applicability of the ANN model was shown by how closely the projected values from the ANN were to the experimental values. In terms of total phenolic contents (18.61 mg GAE/g), total flavonoid contents (12.56 mg CE/g), and DPPH test (IC50) (6.5 g/mL), antioxidant activities also shown significant findings. SEM analysis also revealed that the cell walls were damaged during enzymatic hydrolysis, as opposed to non-hydrolysed material. Using GC-MS, five potent phenolic compounds were identified in P. pinnata extract. According to the findings of this study, the recovery of phenolic bioactives and subsequent increase in the antioxidant capacity of P. pinnata leaf extract were both positively impacted by the optimisation approaches suggested, including the use of zympex-014.
  9. The role of athletic mental energy in the occurrence of flow state in male football (soccer) players
    Yarayan YE, Batrakoulis A, Güngör NB, Kurtipek S, Keskin K, Çelik OB, et al.
    BMC Sports Sci Med Rehabil, 2025 Mar 18;17(1):53.
    PMID: 40102997 DOI: 10.1186/s13102-025-01090-w
    BACKGROUND: This study examines the determinant role of athletic mental energy on the flow state in professional football (soccer) players. This research fills an important gap in the sports psychology literature by focusing on the interaction between mental energy and flow, a critical component of optimal performance.

    METHODS: Accordingly, 254 male athletes (Mean age = 23.1 ± 5.4 years) voluntarily participated in the study. This study was designed with the relational survey model, one of the quantitative research models. Athletic Mental Energy Scale and Dispositional Flow State Scale-2 were used as data collection tools. After confirming the validity and reliability of the scales, the data were analyzed. In this study, blank data were first evaluated to check the suitability of the analysis and assumptions. After the structure of the scales was verified, firstly, when the skewness kurtosis values for the normality test were examined, it was deter-mined that the data were suitable for normal distribution as the values were between - 1.5 and + 1.5 and the Q-Q graph did not show deviations from the distribution. In this context, Pearson Correlation Analysis was used to determine the relationship between athletic mental energy and flow state, and structural equation modeling (SEM) analysis was used to determine the determinant role of mental energy. Mental energy significantly predicted the flow state (β = 0.81, p 

  10. Fulltext Response to dietary supplementation of L-glutamine and L-glutamate in broiler chickens reared at different stocking densities under hot, humid tropical conditions
    Shakeri M, Zulkifli I, Soleimani AF, O'Reilly EL, Eckersall PD, Anna AA, et al.
    Poult Sci, 2014 Nov;93(11):2700-8.
    PMID: 25143595 DOI: 10.3382/ps.2014-03910
    A study was conducted to determine whether supplementing AminoGut (a commercial dietary supplement containing a mixture of l-glutamine and l-glutamic acid) to broiler chickens stocked at 2 different densities affected performance, physiological stress responses, foot pad dermatitis incidence, and intestinal morphology and microflora. A randomized design in a factorial arrangement with 4 diets [basal diet, basal diet + 0.5% AminoGut from d 1 to 21, basal diet + 0.5% AminoGut from d 1 to 42, and basal diet + virginiamycin (0.02%) for d 1 to 42] and 2 stocking densities [0.100 m(2)/bird (23 birds/pen; LD) or 0.067 m(2)/bird (35 birds/pen; HD)]. Results showed that villi length and crypt depth were not changed by different dietary treatments. However, birds in the HD group had smaller villi (P = 0.03) compared with those of the LD group. Regardless of diet, HD consistently increased the serum concentrations of ceruloplasmin, α-1 acid glycoprotein, ovotransferin, and corticosterone (P = 0.0007), and elevated heterophil to lymphocyte ratio (0.0005). Neither AminoGut supplementation nor stocking density affected cecal microflora counts. In conclusion, under the conditions of this study, dietary supplementation of AminoGut, irrespective of stocking density, had no beneficial effect on growth performance, intestinal morphology, and physiological adaptive responses of broiler chickens raised under hot and humid tropical conditions. However, AminoGut supplementation from d 1 to 42 was beneficial in reducing mortality rate. Also, the increased serum concentrations of a wide range of acute phase proteins together with elevated corticosterone and heterophil to lymphocyte ratio suggested that high stocking density induced an acute phase response either indirectly as a result of increased incidence of inflammatory diseases such as foot pad dermatitis or possibly as a direct physiological response to the stress of high stocking density.
  11. Fulltext Four-wave mixing crosstalk suppression based on the pairing combinations of differently linear-polarized optical signals
    Abd H, Din NM, Al-Mansoori MH, Abdullah F, Fadhil HA
    ScientificWorldJournal, 2014;2014:243795.
    PMID: 24883364 DOI: 10.1155/2014/243795
    A new approach to suppressing the four-wave mixing (FWM) crosstalk by using the pairing combinations of differently linear-polarized optical signals was investigated. The simulation was conducted using a four-channel system, and the total data rate was 40 Gb/s. A comparative study on the suppression of FWM for existing and suggested techniques was conducted by varying the input power from 2 dBm to 14 dBm. The robustness of the proposed technique was examined with two types of optical fiber, namely, single-mode fiber (SMF) and dispersion-shifted fiber (DSF). The FWM power drastically reduced to less than -68 and -25 dBm at an input power of 14 dBm, when the polarization technique was conducted for SMF and DSF, respectively. With the conventional method, the FWM powers were, respectively, -56 and -20 dBm. The system performance greatly improved with the proposed polarization approach, where the bit error rates (BERs) at the first channel were 2.57 × 10(-40) and 3.47 × 10(-29) at received powers of -4.90 and -13.84 dBm for SMF and DSF, respectively.
  12. Projecting social support needs of informal caregivers in Malaysia
    Abu Bakar SH, Weatherley R, Omar N, Abdullah F, Mohamad Aun NS
    Health Soc Care Community, 2014 Mar;22(2):144-54.
    PMID: 24024495 DOI: 10.1111/hsc.12070
    This article presents the findings of a self-report study of the consequences of being an informal caregiver in Malaysia. The aim of this exploratory study was to examine Malaysian efforts in assisting informal caregivers, based on an analysis of the issues and concerns raised by the caregivers themselves. Data were obtained from a cross-sectional survey of informal caregivers in 2009. This sample comprised parents, spouses and/or adult siblings, and adult children, caring for their children, spouses or siblings and parents who were chronically ill and/or had a disability. Of 300 prospective participants, only 175 could be located (58%), but all those contacted agreed to participate. Respondents were randomly selected and interviewed using a structured questionnaire to identify the emotional, financial, social and physical issues consequent upon being a caregiver. Most respondents reported that their care-giving responsibilities had impacted their emotional, financial, social and/or physical well-being. Inadequate and/or uncertain income was by far the greatest concern followed in descending order by social, physical and emotional consequences. The one-way analysis of variance showed significant differences among the three categories of caregivers with respect to physical and emotional consequences. The findings show that care-giving has detrimental effects on the lives of informal caregivers, and that they are in significant need of social support to help them deal with care-giving tasks and responsibilities. Based on the findings, an integrated social support programme is proposed, tailored to the needs of informal caregivers.
  13. Characteristics of multiwavelength L-band Brillouin-Raman fiber laser under forward and backward pumped environment
    Abass AK, Al-Mansoori MH, Jamaludin MZ, Abdullah F, Al-Mashhadani TF
    Appl Opt, 2013 Jun 1;52(16):3764-9.
    PMID: 23736332 DOI: 10.1364/AO.52.003764
    We experimentally investigate the performance of L-band multiwavelength Brillouin-Raman fiber laser (MBRFL) under forward and backward pumped environments utilizing a linear cavity. A short length of 1.18 km dispersion compensating fiber is used as a nonlinear gain medium for both Brillouin and Raman gain. Experimental results indicate that the gain in the copumped laser configuration is higher than the gain in the counterpumped configuration. A stable and constant number of Brillouin Stokes lines up to 23 Stokes, with channel spacing of 0.08 nm and more than 20 dB of optical signal to noise ratio, can be generated as well as tuning over 20 nm in the L-band region from 1570 to 1590 nm. The laser generating the Brillouin Stokes lines exhibits flat amplitude bandwidth and high average output power of 0.8 and 1.6 dBm for the copropagation and counterpropagation pumps, respectively. Moreover, the tuning range bandwidth of the MBRFL can be predicted from the oscillated Brillouin pump gain profile.
  14. Fulltext mRNA expression of EgCHI1, EgCHI2, and EgCHI3 in oil palm leaves (Elaeis guineesis Jacq.) after treatment with Ganoderma boninense pat. and Trichoderma harzianum Rifai
    Naher L, Tan SG, Ho CL, Yusuf UK, Ahmad SH, Abdullah F
    ScientificWorldJournal, 2012;2012:647504.
    PMID: 22919345 DOI: 10.1100/2012/647504
    Basal stem rot (BSR) disease caused by the fungus Ganoderma boninense is the most serious disease affecting the oil palm; this is because the disease escapes the early disease detection. The biocontrol agent Trichoderma harzianum can protect the disease only at the early stage of the disease. In the present study, the expression levels of three oil palm (Elaeis guineensis Jacq.) chitinases encoding EgCHI1, EgCHI2, and EgCHI3 at 2, 5, and 8 weeks inoculation were measured in oil palm leaves from plants treated with G. boninense or T. harzianum alone or both.
  15. Anti-inflammatory activity of the aqueous extract of ficus deltoidea
    Zakaria ZA, Hussain MK, Mohamad AS, Abdullah FC, Sulaiman MR
    Biol Res Nurs, 2012 Jan;14(1):90-7.
    PMID: 21278166 DOI: 10.1177/1099800410395378
    Ficus deltoidea (Family Moraceae) leaves have been used traditionally by the Malays to treat ailments such as wounds, sores, and rheumatism. The aim of the present study was to determine the anti-inflammatory activity of the aqueous extract of F. deltoidea leaf (FDA) using acute and chronic inflammatory models. FDA, in the doses of 30, 100, and 300 mg/kg, was administered intraperitoneally in rats (n = 6) before the animals were subjected to the carrageenan-induced paw edema test, cotton pellet-induced granuloma test, and formalin test. The first two tests represent acute and chronic models of inflammation, respectively. The first and second phases of the formalin test represent neurogenic pain and inflammatory-mediated pain, respectively; thus, only the second phase was measured in the present study. Results showed that FDA exerted significant (p < .05) anti-inflammatory activity in all assays, with dose-response effects seen in the paw edema and formalin tests. In conclusion, the leaf of F. deltoidea possesses anti-inflammatory activity against acute and chronic inflammatory responses and against pain-associated inflammatory response. These findings justify the traditional uses of F. deltoidea leaves for treatment of inflammatory-mediated ailments.
  16. Fulltext Efficacy of virtual reality exposure therapy for treatment of dental phobia: a randomized control trial
    Raghav K, Van Wijk AJ, Abdullah F, Islam MN, Bernatchez M, De Jongh A
    BMC Oral Health, 2016 Feb 27;16:25.
    PMID: 26920573 DOI: 10.1186/s12903-016-0186-z
    BACKGROUND: Virtual Reality Exposure Therapy (VRET) is found to be a promising and a viable alternative for in vivo exposure in the treatment of specific phobias. However, its usefulness for treating dental phobia is unexplored. The aims of the present study are to determine: (a) the efficacy of VRET versus informational pamphlet (IP) control group in terms of dental trait and state anxiety reductions at 1 week, 3 months and 6 months follow-up (b) the real-time physiological arousal [heart rate (HR)] of VRET group participants during and following therapy (c) the relation between subjective (presence) and objective (HR) measures during VRET.

    METHODS: This study is a single blind, randomized controlled trial with two parallel arms in which participants will be allocated to VRET or IP with a ratio of 1:1. Thirty participants (18-50 years) meeting the Phobia Checklist criteria of dental phobia will undergo block randomization with allocation concealment. The primary outcome measures include participants' dental trait anxiety (Modified Dental Anxiety Scale and Dental Fear Survey) and state anxiety (Visual Analogue Scale) measured at baseline (T0), at intervention (T1), 1-week (T2), 3 months (T3) and 6 months (T4) follow-up. A behavior test will be conducted before and after the intervention. The secondary outcome measures are real-time evaluation of HR and VR (Virtual Reality) experience (presence, realism, nausea) during and following the VRET intervention respectively. The data will be analyzed using intention-to-treat and per-protocol analysis.

    DISCUSSION: This study uses novel non-invasive VRET, which may provide a possible alternative treatment for dental anxiety and phobia.

    TRIAL REGISTRATION NUMBER: ISRCTN25824611 , Date of registration: 26 October 2015.

  17. Interactions of Flavone and Steroid from A. subintegra as Potential Inhibitors for Porcine Pancreatic Lipase
    Ibrahim M, Abdul Azziz SSS, Wong CF, Bakri YM, Abdullah F
    Curr Comput Aided Drug Des, 2020;16(6):698-706.
    PMID: 31648647 DOI: 10.2174/1573409915666191015112320
    BACKGROUND: Obesity is one serious health condition that contributes to various chronic diseases. The inhibition of pancreatic lipase is a promising treatment for obesity.

    OBJECTIVE: The present study was designed to investigate anti-porcine pancreatic lipase effect of isolated compounds from Aquilaria subintegra and its mechanism.

    METHODS: Compounds were isolated with serial column chromatography and their structure were identified using spectroscopic methods. Isolated compounds were tested for anti-lipase potential activity using colorimetric assay. The prediction of energy binding between isolated compounds and enzyme was described using YASARA software.

    RESULTS: Four compounds were successfully isolated from the bark of A. subintegra, namely, 5- hydroxy-7,4'-dimethoxyflavone, luteolin-7,3',4'-trimethyl ether, 5,3'-dihydroxy-7,4'-dimethoxyflavone and β-sitosterol. The results indicated that all compounds displayed promising pancreatic lipase inhibitory activity ranging between of 6% to 53% inhibition. Compound 5-hydroxy-7,4'- dimethoxyflavone was a competitive inhibitor and decreases the enzyme catalysis. Meanwhile, β- sitosterol was a non- competitive inhibitor since the latter was bind allosterically toward enzyme.

    CONCLUSION: This finding is significant for further investigation of bioactive compounds from A. subintegra on animal study.

  18. Cytotoxicity, alpha-glucosidase inhibition and molecular docking studies of hydroxamic acid chromium(III) complexes
    Hassan LR, Anouar EH, Bahron H, Abdullah F, Mohd Tajuddin A
    J Biol Inorg Chem, 2020 03;25(2):239-252.
    PMID: 31974764 DOI: 10.1007/s00775-020-01755-6
    Hydroxamic acids [R(CO)N(OH)R'] are flexible compounds for organic and inorganic analyses due to their frailer structures compared to the carboxylic acid. The syntheses and characterization of benzohydroxamic acid (BHA), its CH3-, OCH3-, Cl- para-substituted derivatives and their Cr(III) complexes are reported herein. The metal complexes were synthesized by reacting the hydroxamic acids with chromium(III) chloride hexahydrate in 2:1 molar ratio. The compounds were characterized via melting point, elemental analysis, FTIR, 1H and 13C NMR, TGA, mass spectrometry, molar conductance and UV-Visible. Data analysis suggests that each complex has the Cr(III) center coordinated to the carbonyl and hydroxy oxygen atoms of the hydroxamic acids in bidentate O,O manner and two water molecules to form octahedral geometry. Non-electrolytic behavior of the complexes was shown through their low molar conductivity. Cytotoxicity study against HCT116 and alpha-glucosidase inhibition test revealed that all complexes have higher activity than their parent ligands. Molecular docking study shows that the docking of active complexes is thermodynamically favorable and the inhibition efficiency may depend on the types and the numbers of molecular interactions established in the corresponding stable conformers.
  19. Does physical activity and body weight status determine musculoskeletal health among adolescents in Malaysia?
    Che Hasan MK, Abdullah F, Firdaus MKZH, Jamaludin FIC
    Enferm Clin, 2021 04;31 Suppl 2:S247-S251.
    PMID: 33849174 DOI: 10.1016/j.enfcli.2020.09.010
    This study was conducted to examine the association between physical activity (PA) and body weight status among adolescents in rural and urban areas. This cross-sectional study involved 257 adolescents aged 13-19 years, randomly selected from secondary schools around Kelantan, Malaysia. Body weight and height were measured and body mass index (BMI) was calculated. The students completed the International Physical Activity Questionnaire - Short Form, to assess their physical activity. Ethical clearance was obtained from respected bodies. Adolescents in the urban area had significantly higher BMI (p-value<0.001) and lower physical activity (p-value<0.001) than adolescents in the rural area. A significant association also found between BMI and PA in both urban and rural areas. In conclusion, more physically active adolescents had lower BMI than who are less physically active. Being physically active could lower the body weight and BMI, hence improve musculoskeletal health, and could reduce co-morbidity.
  20. Fulltext Prevalence of hypertension and glycaemic control in adult type-2 diabetes patients: A preliminary retrospective cohort study in Kuantan, Pahang, Malaysia
    Abdullah F, Han TM, Mat Nor MB, Mohd Aznan MA, Ismail IZ
    International Medical Journal Malaysia, 2017;16(1):115-122.
    MyJurnal
    Introduction: Hypertension (HPT) is the most common co-morbidity among type-2 diabetes mellitus (T2DM) patients which ominously increased their morbidity and mortality from cardiovascular diseases (CVD). We aimed to determine the prevalence and control status of HPT, and also the glycemic control among T2DM patients in a primary care clinic in Kuantan, Pahang. Methods: It was a retrospective study of 154 T2DM patients’ records, aged ≥18 years selected by random sampling. The statistical analysis is done by using Chisquare test, paired sample “t” test and ANOVA “F” test. Results: Among T2DM patients; 47% were Malay, 45% Chinese and 9% Indian. The prevalence of HPT was 72.1% and majority of T2DM patients were women (60%). Out of 82 T2DM aged >60 years, 80.5% were hypertensive. 67.2% of T2DM patients between the age of 40-60 years and 25% age <40 years were also hypertensive (p= 0.003). BP-controlled status were classified into controlled, uncontrolled, systolic and diastolic HPT. All patients were compared between the last visit and one year before, which reported 55.8% versus 33.1%, 14.9% versus 51.9%, 20.1% versus 10.4% and 9.1% versus 4.5% respectively. There were significant rises in percentage of systolic BP (by 9.7%) and diastolic HPT (by 4.6%) p<0.0001, from the first visit. BP controlled status for aged group >60 years showed increments in systolic HPT and diastolic HPT which were significant (p<0.0001). Regarding glycemic parameters, 71.4% T2DM patients had poor controlled level of Hb1Ac (≥6.5) and only 20.1% remained controlled after one year (p<0.0001). Conclusions: This pilot study found high prevalence of HPT, increasing prevalence of systolic HPT and diastolic HPT in older age group as well as poor glycemic control among T2DM patients.

    KEYWORDS: Controlled blood pressure, systolic hypertension, diastolic hypertension, HbA1C difference, primary care clinic
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