85 results on '"H. Nawawi"'
Search Results
2. Effect of saffron ethanolic extract on body weight, lipid profile and atherosclerotic lesions in early and established atherosclerotic New Zealand white rabbits
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I.N. Abd Rahim, N.A. Mohd Kasim, E. Omar, S. Abdul Muid, and H. Nawawi
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Cardiology and Cardiovascular Medicine - Published
- 2022
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3. Sudden death due to infective endocarditis caused by Streptococcus constellatus: A case report
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M S, Zamasry, Z, Hilmi, M Y P, Mohd Yusof, H S A, Razali, H, Nawawi, and M S, Mahmood
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Adult ,Male ,Fatal Outcome ,Streptococcal Infections ,Humans ,Endocarditis, Bacterial ,Streptococcus constellatus - Abstract
Infective endocarditis (IE) is a relatively uncommon disease, but has been challenging to diagnose over the years. With the increasing incidence, variety of causative agents and the resistance of microorganisms towards antibiotics, there is still an occurrence of sudden death due to undiagnosed IE. The most common microorganism causing IE is Staphylococcus aureus. However, there is increasing prevalence of other microorganisms causing IE. This case report highlights a case of sudden death due to IE caused by a rare pathogen, Streptococcus constellatus which belongs to the Streptococcus anginosus group (Milleri group). A study noted the crude incidence of IE in 6 world regions ranged between 1.5 and 11.6 cases per 100,000 people. To date, there has been no previous report on sudden death due to IE caused by Streptococcus constellatus in Malaysia, neither in the forensic nor clinical setting. This case report underlined the characteristics and pathological features of this microorganism. The increasing incidence and variety of causative organisms in IE are important public health issues. It is vital for future studies to examine the risk factors of IE related to Streptococcus constellatus, to enhance better understanding, insight and awareness regarding the course of this disease. This in turn may facilitate preventive measures to avoid morbidity and mortality from this condition.
- Published
- 2021
4. Effects of Water-Based Contrast Media on Experimentally Induced Established Atherosclerotic Plaques in Rabbits
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M., Kaur, primary, T, Rahman, additional, NK, Mohd Kornain, additional, R, Ahmad, additional, R, Awang Jalil, additional, MR, Isa, additional, N, Mohd Noor, additional, and H, Nawawi, additional
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- 2020
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5. Tetra primer amplification refractory mutation system PCR optimisation to detect pathogenic familial hypercholesterolaemia variants among Malaysians
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H. Nawawi, Y.A. Chua, A. Al-Khateeb, N. Rosman, and A.L. Chua
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Genetics ,biology ,Refractory ,Mutation (genetic algorithm) ,Tetra ,Primer (molecular biology) ,Cardiology and Cardiovascular Medicine ,biology.organism_classification - Published
- 2021
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6. Effects of prolonged isolation in a confined space on status of oxidative stress and prothrombogenesis: In preparation for possible future manned space expedition to Mars
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S, Muid, N A, Abu Bakar, T, Abdul Rahman, T S, Tengku Ismail, S F, Kholin, A V, Suvorov, L, Buravkova, H, Nawawi, and S, Shuib
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Adult ,Inflammation ,Male ,Oxidative Stress ,Confined Spaces ,Expeditions ,Malaysia ,Humans ,Female ,Prospective Studies ,Middle Aged ,Space Flight ,Biomarkers - Abstract
Apart from inflammation and endothelial dysfunction, other key components in the development of atherogenesis include prothrombogenesis and oxidative stress. The effects of long-term confinement and isolation, exposure to radiation and different gravity forces during space travel could potentially increase the long-term risk of atherosclerosis. To the best of our knowledge, this is the first study determining the status of prothrombogenesis and oxidative stress in six cosmonauts subjected to the longest duration of confined isolation period of 520 days in preparation for prospective undetermined manned space travel to Mars.This collaborative research between the National Space Agency (ANGKASA), Universiti Teknologi MARA, Malaysia and Institute of Biomedical Problems (IBMP), Russia was conducted at the Russian Academy of Sciences IBMP, Moscow, Russia. Six multi-national cosmonauts were assigned to live in a ground-based confined module for 520 days. Standard exercise and diet regime were instituted throughout the isolation phase. Six age, ethnic and gender-matched healthy, free-living ground controls were recruited in parallel. Serial serum and whole blood were analysed for biomarkers of prothrombogenesis [plasminogen activator inhibitor-1 (PAI-1) and homocysteine] and oxidative stress [oxidised low-density lipoprotein (ox-LDL) and malondialdehyde (MDA)].There were significantly lower concentrations of PAI-1 and homocysteine in cosmonauts during confinement compared to the controls. There were no significant differences seen in the concentrations of biomarkers of oxidative stress during confinement but there was a significant percentage change increment for serum MDA in cosmonauts.Long-term confinement decreased the risk of prothrombogenesis and this could be attributed to the exercise and diet regime which includes omega-3 fatty acids supplementation given to the crew members during their confinement period. However, oxidative damage could not be excluded and may be attributed to the influence of psychological stress during this prolonged confinement.
- Published
- 2020
7. Association of coronary artery calcium score with calcification and degree of stenosis: An autopsy study
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M, Kaur, R, Rahimi, F, Razali, N, Mohd Noor, E, Omar, Z, Abdul Manaf, M S, Mahmood, N, Abdullah, and H, Nawawi
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Adult ,Male ,Cross-Sectional Studies ,Coronary Stenosis ,Calcinosis ,Humans ,Calcium ,Female ,Autopsy ,Middle Aged ,Tomography, X-Ray Computed ,Coronary Vessels - Abstract
Coronary artery disease (CAD) is a known cause of major cardiovascular events and calcium score (CS) has been developed as a marker of coronary atherosclerosis. Yet, the relationship between post mortem computed tomography (PMCT) CS with histologically observed calcification and the severity of coronary artery stenosis has not been widely explored and is still unclear. This study aims to determine the association between coronary artery PMCT CS with histologically observed calcification and degree of stenosis of coronary arteries in post-mortem cases.This was a cross-sectional study involving 101 subjects recruited from the National Institute of Forensic Medicine (IPFN) Hospital Kuala Lumpur (HKL) over a period of 15 months, from December 2012 until April 2014. PMCT CS of the coronary arteries was calculated using Agatston-Janowitz score. Histological presence of calcification was observed and the degree of stenosis was calculated using an image analysis technique.PMCT CS increased with increasing severity of stenosis (p0.001). PMCT CS showed a positive correlation with the presence of calcification (r=-0.82, p0.001).Calcium score is strongly associated with coronary artery calcification and the degree of luminal stenosis in post mortem subjects. Thus, PMCT may be useful as a non-invasive tool in diagnosing CAD in the event that an autopsy is not possible.
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- 2019
8. Expert system development for the mass appraisal of commercial property in Malaysia
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A. H. Nawawi, D. Jenkins, and S. Gronow
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Knowledge management ,Property (philosophy) ,Scope (project management) ,business.industry ,Process (engineering) ,Knowledge economy ,Mass appraisal ,Regression analysis ,business ,computer.software_genre ,computer ,Expert system ,Valuation (finance) - Abstract
This chapter investigates the use of knowledge from a number of experts in developing an expert system for rating valuation of commercial and industrial properties in Malaysia. It examines a review of the background to the research, the process of eliciting the knowledge, and the knowledge that has been elicited a description of the prototype and its evaluation. In Malaysia, computerization exercises in local authorities mainly concentrate on the storage and retrieval of property records and for billing purposes. Most systems on mass appraisal valuations have been associated with the traditional statistical approach of Multiple Regression Analysis. The scope of properties in the research includes purpose-built office complexes, shopping complexes, shop-house/office/flat and industrial properties that is factories. Valuers seemed to show a high level of confidence in making ‘reasoned adjustments’ for differences in factors using the comparison method in the case of shop-houses and industrial properties.
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- 2018
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9. Updates in the management of Dyslipidaemia in the high and very high risk individual for CV risk reduction
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R, Jeyamalar, W A, Wan Azman, H, Nawawi, G H, Choo, W K, Ng, M A, Rosli, O, Al Fazir, K, Sazzli, M, Oteh, and D K L, Quek
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Cardiovascular Diseases ,Risk Factors ,Hypercholesterolemia ,Humans ,Risk Reduction Behavior ,Dyslipidemias ,Hypolipidemic Agents - Abstract
Cardiovascular disease (CVD) has been the main cause of mortality and an important cause of morbidity in Malaysia for several years. To reduce global cardiovascular (CV) risk in the population, primary preventive strategies need to be implemented. Hypercholesterolaemia is one of the major risk factors for CVD. This paper is an expert review on the management of hypercholesterolemia focusing on high and very high risk individuals. In low and Intermediate risk individuals, therapeutic lifestyle changes (TLC) and a healthy lifestyle alone may suffice. In high and very high risk individuals, drug therapy in conjunction with TLC are necessary to achieve the target LDL-C levels which have been shown to slow down progression and sometimes even result in regression of atherosclerotic plaques. Statins are first-line drugs because they have been shown in numerous randomized controlled trials to be effective in reducing CV events and to be safe. In some high risk individuals, despite maximally tolerated statin therapy, target Low Density Lipoprotein Cholesterol (LDL-C) levels are not achieved. These include those with familial hypercholesterolaemia and statin intolerance. This paper discusses non-statin therapies, such as ezetimibe and the newer Proprotein convertase subtilisin/kexin type 9 Inhibitors (PCSK9-i).
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- 2018
10. The influence of the stakeholders’ perspective for the performance measurement in local authorities
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Norhasyimi Rahmat and A. H. Nawawi
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Process management ,Perspective (graphical) ,Performance measurement ,Business - Abstract
This research constructs a performance evaluation of the influence of stakeholders’ perspective on the performance measurement in the local authorities. The stakeholders’ perspective has been proven as one of the main factors that influence higher rating on the performance measurement in many public organizations including the local authorities. However, very little attention has been paid towards the attributes of the stakeholders’ perspective that affecting the performance measurement in the local authorities. This research focused on the elements that contribute on the stakeholders’ perspective from the Balanced Scorecard’s perspective and Multi-Criteria Decision Making tool namely Analytic Network Process (ANP) to acquire the priorities of the attributes for the stakeholders’ perspective. The attributes were used as the performance indicator for performance measurement in the local authorities. There were eight (8) attributes that have been measured in order to acquire the priorities of the attributes in affecting the performance measurement under the stakeholders’ perspective (customer, customer retention, new customer acquisition, customer profitability, community support, employees, management and service providers). From this result, it will provide the management of the local authorities to improve the performance of the local authorities which are meaningful for managerial and improvement purpose in the service delivery towards the public.
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- 2020
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11. Homozygous mutations of low-density lipoprotein receptor gene in a family with familial hypercholesterolaemia
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A. AL-Khateeb, N.A. Mohd Kasim, Y.A. Chua, S.N.F. Ismail, L.K. The, and H. Nawawi
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medicine.medical_specialty ,Endocrinology ,Internal medicine ,medicine ,Low Density Lipoprotein Receptor Gene ,Biology ,Cardiology and Cardiovascular Medicine - Published
- 2018
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12. Animal traction as source of farm power in rural areas of Sokoto state
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M. A. Umaru1, A. Bello, M. Dalhatu, H. Nawawi, and A.I. Musawa
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Farm power ,Animal ,Traction ,Nigeria ,Rural area - Abstract
Animal can be very important for carrying domestic water and fuel, reducing drudgery (particularly for women) and reducing time that can be used in other productive or socially important tasks. Foods production, distribution and rural trade are also assisted through animal-powered transport (on-farm, marketing, riding, pack transport. Animal power can also be used for water-lifting, milling, logging and land excavation and road construction Animal power requires little or no foreign exchange. Money invested in animal power circulates within rural areas, helping to revitalize rural economies. While motorized power also brings many benefits, animal power is normally more available and affordable to people in rural areas and fragile environments. The use of farm animal traction is actually on the increased in many countries, it should be included in educational curricula in secondary schools, polytechnics and universities in Nigeria. Government agricultural activities mostly focused on tractor power. There is no need for increased effort towards animal traction since it is a more affordable farm power. The paper aimed at drawing the attention of Extension agents, researchers, decision-makers and teachers on the need to bring animal power topics to focus.  
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- 2015
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13. Animal traction as source of farm power in rural areas of Sokoto state, Nigeria
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M. A. Umaru, A. Bello, M. Dalhatu, H. Nawawi, and A.I. Musawa
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Farm power ,Animal ,Traction ,Nigeria ,Rural area ,Animal power - Abstract
Animal can be very important for carrying domestic water and fuel, reducing drudgery (particularly for women) and reducing time that can be used in other productive or socially important tasks. Foods production, distribution and rural trade are also assisted through animal-powered transport (on-farm, marketing, riding, pack transport. Animal power can also be used for water-lifting, milling, logging and land excavation and road construction Animal power requires little or no foreign exchange. Money invested in animal power circulates within rural areas, helping to revitalize rural economies. While motorized power also brings many benefits, animal power is normally more available and affordable to people in rural areas and fragile environments. The use of farm animal traction is actually on the increased in many countries, it should be included in educational curricula in secondary schools, polytechnics and universities in Nigeria. Government agricultural activities mostly focused on tractor power. There is no need for increased effort towards animal traction since it is a more affordable farm power. The paper aimed at drawing the attention of Extension agents, researchers, decision-makers and teachers on the need to bring animal power topics to focus.
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- 2015
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14. Identification of Differentially Expressed Gene(DEG) in Atherosclerotic Lesion by Annealing Control Primer (ACP)-Based Genefishing™ PCR
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M. Maimunah, G. A. Froemming, H. Nawawi, M. I. Nafeeza, O. Effat, M. Y. Rosmadi, and M. S. Mohamed Saifulaman
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GeneFishing™ PCR ,cathepsin B gene ,Atherosclerosis - Abstract
Atherosclerosis was identified as a chronic inflammatory process resulting from interactions between plasma lipoproteins, cellular components (monocyte, macrophages, T lymphocytes, endothelial cells and smooth muscle cells) and the extracellular matrix of the arterial wall. Several types of genes were known to express during formation of atherosclerosis. This study is carried out to identify unknown differentially expressed gene (DEG) in atherogenesis. Rabbit’s aorta tissues were stained by H&E for histomorphology. GeneFishing™ PCR analysis was performed from total RNA extracted from the aorta tissues. The DNA fragment from DEG was cloned, sequenced and validated by Real-time PCR. Histomorphology showed intimal thickening in the aorta. DEG detected from ACP-41 was identified as cathepsin B gene and showed upregulation at week-8 and week-12 of atherogenesis. Therefore, ACP-based GeneFishing™ PCR facilitated identification of cathepsin B gene which was differentially expressed during development of atherosclerosis., {"references":["Newby, A. C., George, S.J., Ismail, Y., Johnson, J.L., Sala-Newby, G.B. and Thomas, A.C. \"Vulnerable atherosclerotic plaque metalloproteinases\nand foam cell phenotypes\". Thromb Haemost, vol. 101(6): pp. 1006-11,2009.","Newby, A.C. \"Matrix metalloproteinases regulate migration, proliferation, and death of vascular smooth muscle cells by degradingmatrix and non-matrix substrates\". Cardiovasc Res, vol. 69(3): pp. 614-24, 2006.","Matsumoto, S., Kobayashi, T., Katoh, M., Saito, S., Ikeda, Y., Kobori,\nM., Masuho, Y. and Watanabe, T. \"Expression and localization of\nmatrix metalloproteinase-12 in the aorta of cholesterol-fed rabbits:\nrelationship to lesion development\". Am J Pathol, vol. 153(1): pp. 109-\n19, 1998.","Watanabe, N. and Ikeda, U., Matrix metalloproteinases and\natherosclerosis. Curr Atheroscler Rep, 6(2): p. 112-20, 2004.","Newby, A.C. and Zaltsman, A.B. Fibrous cap formation or destruction-\n-the critical importance of vascular smooth muscle cell proliferation,\nmigration and matrix formation. Cardiovasc Res, 41(2): p. 345-60, 1999.","Blake, G.J. and Ridker, P.M. Inflammatory bio-markers and\ncardiovascular risk prediction. J Intern Med, 252(4): p. 283-94, 2002.","Beaudeux, J. L., Giral, P., Bruckert, E., Foglietti, M. J., & Chapman, M.\nJ. Matrix metalloproteinases, inflammation and atherosclerosis:\ntherapeutic perspectives. Clin Chem Lab Med, 42(2): p. 121-31, 2004.","Koga, T.,Kwan, P., Zubik, L., Ameho, C., Smith, D.and Meydani, M.\nVitamin E supplementation suppresses macrophage accumulation and\nendothelial cell expression of adhesion molecules in the aorta of\nhypercholesterolemic rabbits. Atherosclerosis, 176(2): p. 265-72, 2004.","Bobryshev, Y.V. Monocyte recruitment and foam cell formation in\natherosclerosis. Micron, 37(3): p. 208-22, 2006.\n[10] Aikawa, M. and Libby, P. Lipid lowering therapy in atherosclerosis.\nSemin Vasc Med, 4(4): p. 357-66, 2004.\n[11] Aikawa, M. and Libby, P. Lipid lowering reduces proteolytic and\nprothrombotic potential in rabbit atheroma. Ann N Y Acad Sci, 902: p.\n140-52, 2000.\n[12] Kang, J. G., Patino, W. D., Matoba, S., & Hwang, P. M. Genomic\nanalysis of circulating cells: a window into atherosclerosis. Trends in\ncardiovascular medicine, 16(5): p. 163-8, 2006.\n[13] Satterthwaite G, Francis SE, Suvarna K, Blakemore S, Ward C, Wallace\nD, Braddock M, and Crossman D. Differential gene expression in\ncoronary arteries from patients presenting with ischemic heart disease:\nFurther evidence for the inflammatory basis of atherosclerosis. American\nheart journal, 150(3): p. 488-499, 2005. \n[14] Sinnaeve, P. R., Donahue, M. P., Grass, P., Seo, D., Vonderscher, J.,\nChibout, S. D., Kraus, W.E., Michael Sketch, M.J., Nelson, C.,\nGinsburg, G.S., Goldschmidt-Clermont, P.J., Granger, C.B. Gene\nexpression patterns in peripheral blood correlate with the extent of\ncoronary artery disease. PLoS One, 4(9): p. e7037, 2009.\n[15] Kim, Y. J., Kwak, C. I., Gu, Y. Y., Hwang, I. T., & Chun, J. Y.\nAnnealing control primer system for identification of differentially\nexpressed genes on agarose gels. Biotechniques, 36(3): p. 424-6, 2004.\n[16] Ryu, H. H., Jung, S., Sun, H. S., Jung, T. Y., Jin, S. G., Jin, Y. H., Kim,\nI.Y., Jeong, Y.I1 and Kang, S.S. Screening for motility-associated genes\nin malignant astrocytoma cell lines. J Neurooncol, 82(2): p. 125-31,\n2007.\n[17] Hwang, I.-T.K., Y-J; Kim, S-H; Kwak, CIl. and a.J.-Y.C. Young-Yun\nGu, Annealing control primer system for improving specificity of PCR\namplification. BioTechniques, 35(6): p. 1180-1184, 2003.\n[18] Kim, Y. S., Hwan, J. D., Bae, S., Bae, D. H., & Shick, W. A.\nIdentification of differentially expressed genes using an annealing\ncontrol primer system in stage III serous ovarian carcinoma. BMC\nCancer, 10: p. 576, 2010.\n[19] Lutgens, S. P., Cleutjens, K. B., Daemen, M. J., & Heeneman, S.\nCathepsin cysteine proteases in cardiovascular disease. Faseb J, 21(12):\np. 3029-41, 2007.\n[20] Ma, Y., Malbon, C.C., Williams, D.L. and Thorngate, F.E. Altered gene\nexpression in early atherosclerosis is blocked by low level\napolipoprotein E. PLoS One, 3(6): p. e2503, 2008."]}
- Published
- 2012
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15. Gene Expressions Associated with Ultrastructural Changes in Vascular Endothelium of Atherosclerotic Lesion
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M. Maimunah, G.A. Froemming, H. Nawawi, M.I. Nafeeza, O. Effat, M.R. Rohayu Izanwati, and M.S. Mohamed Saifulaman
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Macrophage metalloelastase (MMP-12) ,Real-time PCR ,Ultrastructure of luminal endothelial surface - Abstract
Attachment of the circulating monocytes to the endothelium is the earliest detectable events during formation of atherosclerosis. The adhesion molecules, chemokines and matrix proteases genes were identified to be expressed in atherogenesis. Expressions of these genes may influence structural integrity of the luminal endothelium. The aim of this study is to relate changes in the ultrastructural morphology of the aortic luminal surface and gene expressions of the endothelial surface, chemokine and MMP-12 in normal and hypercholesterolemic rabbits. Luminal endothelial surface from rabbit aortic tissue was examined by scanning electron microscopy (SEM) using low vacuum mode to ascertain ultrastructural changes in development of atherosclerotic lesion. Gene expression of adhesion molecules, MCP-1 and MMP-12 were studied by Real-time PCR. Ultrastructural observations of the aortic luminal surface exhibited changes from normal regular smooth intact endothelium to irregular luminal surface including marked globular appearance and ruptures of the membrane layer. Real-time PCR demonstrated differentially expressed of studied genes in atherosclerotic tissues. The appearance of ultrastructural changes in aortic tissue of hypercholesterolemic rabbits is suggested to have relation with underlying changes of endothelial surface molecules, chemokine and MMP-12 gene expressions., {"references":["Walski, M., Chlopicki, S., Celary-Walska, R., Frontczak-Baniewicz, M.\nUltrastructural alterations of endothelium covering advanced\natherosclerotic plaque in human carotid artery visualised by scanning\nelectron microscope. J Physiol Pharmacol, 53(4 Pt 1): p. 713-23, 2002.","Wilhelm, M.G. and A.D. Cooper, Induction of atherosclerosis by human\nchylomicron remnants: a hypothesis. J Atheroscler Thromb, 10(3): p.\n132-9, 2003.","Cybulsky, M.I., Lichtman, A. H., Hajra, L., Iiyama, K. Leukocyte\nadhesion molecules in atherogenesis. Clin Chim Acta, 286(1-2): p. 207-\n18, 1999.","Fan, J. and T. Watanabe, Inflammatory reactions in the pathogenesis of\natherosclerosis. J Atheroscler Thromb, 10(2): p. 63-71, 2003.","Galkina, E. and K. Ley, Vascular adhesion molecules in atherosclerosis.\nArterioscler Thromb Vasc Biol, 27(11): p. 2292-301, 2007.","Kuzuya, M. and Iguchi, A. Role of matrix metalloproteinases in vascular\nremodeling. J Atheroscler Thromb, 10(5): p. 275-82, 2003.","Katsuda, S. and Kaji, T. Atherosclerosis and extracellular matrix. J\nAtheroscler Thromb, 10(5): p. 267-74, 2003.","Dollery, C.M. and Libby, P. Atherosclerosis and proteinase activation.\nCardiovasc Res, 69(3): p. 625-35, 2006.","Dollery, C.M., McEwan, J.R. and Henney, A.M. Matrix\nmetalloproteinases and cardiovascular disease. Circ Res, 77(5): p. 863-8,\n1995.\n[10] Dollery, C.M., Owen, C. A., Sukhova, G. K., Krettek, A., Shapiro, S. D.,\nand Libby, P. Neutrophil elastase in human atherosclerotic plaques:\nproduction by macrophages. Circulation, 107(22): p. 2829-36, 2003.\n[11] Halpert, I., Sires, U. I., Roby, J. D., Potter-Perigo, S., Wight, T. N.,\nShapiro, S. D., Welgus, H. G., Wickline, S. A., and Parks, W. C.\nMatrilysin is expressed by lipid-laden macrophages at sites of potential\nrupture in atherosclerotic lesions and localizes to areas of versican\ndeposition, a proteoglycan substrate for the enzyme. Proc Natl Acad Sci\nU S A, 93(18): p. 9748-53, 1996.\n[12] Libby, P. and P.M. Ridker, Inflammation and atherosclerosis: role of Creactive\nprotein in risk assessment. Am J Med, 116 Suppl 6A: p. 9S-16S,\n2004.\n[13] Zeng, B., Prasan, A., Fung, K. C., Solanki, V., Bruce, D., Freedman, S.\nB. and Brieger, D. Elevated circulating levels of matrix\nmetalloproteinase-9 and -2 in patients with symptomatic coronary artery\ndisease. Intern Med J, 35(6): p. 331-5, 2005.\n[14] Fan, J., Wang, X.,Wu, L.,Matsumoto, S. I.,Liang, J.,Koike, T.,Ichikawa,\nT.,Sun, H.,Shikama, H.,Sasaguri, Y.,Watanabe, T. Macrophage-specific\noverexpression of human matrix metalloproteinase-12 in transgenic\nrabbits. Transgenic Res, 13(3): p. 261-9, 2004.\n[15] Yu, Y., Koike, T., Kitajima, S., Liu, E., Morimoto, M., Shiomi, M.,\nHatakeyama, K., Asada, Y., Wang, K. Y., Sasaguri, Y., Watanabe, T.\nTemporal and quantitative analysis of expression of metalloproteinases\n(MMPs) and their endogenous inhibitors in atherosclerotic lesions.\nHistol Histopathol, 23(12): p. 1503-16, 2008.\n[16] Morgan, A.R., Rerkasem, K., Gallagher, P. J., Zhang, B., Morris, G. E.,\nCalder, P. C., Grimble, R. F., Eriksson, P., McPheat, W. L., Shearman,\nC. P., Ye, S. Differences in matrix metalloproteinase-1 and matrix\nmetalloproteinase-12 transcript levels among carotid atherosclerotic\nplaques with different histopathological characteristics. Stroke, 35(6): p.\n1310-5, 2004.\n[17] Daley, S.J., Herderick, E. E., Cornhill, J. F., Rogers, K. A. Cholesterolfed\nand casein-fed rabbit models of atherosclerosis. Part 1: Differing\nlesion area and volume despite equal plasma cholesterol levels.\nArterioscler Thromb, 14(1): p. 95-104, 1994.\n[18] Daley, S.J., Klemp, K. F., Guyton, J. R., Rogers, K. A. Cholesterol-fed\nand casein-fed rabbit models of atherosclerosis. Part 2: Differing\nmorphological severity of atherogenesis despite matched plasma\ncholesterol levels. Arterioscler Thromb, 14(1): p. 105-41, 1994.\n[19] Aikawa, M., Rabkin, E., Okada, Y., Voglic, S. J., Clinton, S. K.,\nBrinckerhoff, C. E., Sukhova, G. K., Libby, P. Lipid lowering by diet\nreduces matrix metalloproteinase activity and increases collagen content\nof rabbit atheroma: a potential mechanism of lesion stabilization.\nCirculation, 97(24): p. 2433-44, 1998.\n[20] Ozer, N.K., Negis, Y., Aytan, N., Villacorta, L., Ricciarelli, R., Zingg, J.\nM., Azzi, A. Vitamin E inhibits CD36 scavenger receptor expression in\nhypercholesterolemic rabbits. Atherosclerosis, 184(1): p. 15-20. 2006.\n[21] Riedmuller, K., Metz, S., Bonaterra, G. A., Kelber, O., Weiser, D.,\nMetz, J., Kinscherf, R. Cholesterol diet and effect of long-term\nwithdrawal on plaque development and composition in the thoracic aorta\nof New Zealand White rabbits. Atherosclerosis, 210(2): p. 407-13, 2010.\n[22] de Bruijn, W.C. and W. van Mourik, Scanning electron microscopic\nobservations of endothelial changes in experimentally induced\natheromatosis of rabbit aortas. Virchows Arch A Pathol Anat Histol,\n365(1): p. 23-40, 1975.\n[23] Brevetti, G., V. Schiano, and M. Chiariello, Endothelial dysfunction: a\nkey to the pathophysiology and natural history of peripheral arterial\ndisease? Atherosclerosis, 197(1): p. 1-11, 2008.\n[24] Reidy, M.A. and D.E. Bowyer, Scanning electron microscope studies of\nrabbit aortic endothelium in areas of haemodynamic stress during\ninduction of fatty streaks. Virchows Arch A Pathol Anat Histol, 377(3):\np. 237-48, 1978.\n[25] Nitschmann, E., Berry, L., Bridge, S., Hatton, M. W., Richardson, M.,\nMonagle, P., Chan, A. K., Andrew, M. Morphological and biochemical\nfeatures affecting the antithrombotic properties of the aorta in adult\nrabbits and rabbit pups. Thromb Haemost, 79(5): p. 1034-40, 1998.\n[26] Matsuda, J., Takahashi, S. Ohkoshi, K., Kaminaka, K., Kaminaka, S.,\nNozaki, C., Maeda, H., Tokunaga, T. Production of transgenic chimera\nrabbit fetuses using somatic cell nuclear transfer. Cloning Stem Cells,\n4(1): p. 9-19, 2002.\n[27] Mestas, J. and K. Ley, Monocyte-endothelial cell interactions in the\ndevelopment of atherosclerosis. Trends Cardiovasc Med, 18(6): p. 228-\n32, 2008.\n[28] Bobryshev, Y.V., Monocyte recruitment and foam cell formation in\natherosclerosis. Micron, 37(3): p. 208-22, 2006.\n[29] Lu, Z.Y., Jensen, L. E., Huang, Y., Kealey, C., Blair, I. A., Whitehead,\nA. S. The up-regulation of monocyte chemoattractant protein-1 (MCP-1)\nin Ea.hy 926 endothelial cells under long-term low folate stress is\nmediated by the p38 MAPK pathway. Atherosclerosis, 205(1): p. 48-54,\n2009.\n[30] Liang, J., Liu, E., Yu, Y., Kitajima, S., Koike, T., Jin, Y., Morimoto, M.,\nHatakeyama, K., Asada, Y., Watanabe, T., Sasaguri, Y., Watanabe, S.,\nFan, J. Macrophage metalloelastase accelerates the progression of\natherosclerosis in transgenic rabbits. Circulation, 113(16): p. 1993-2001,\n2006."]}
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- 2012
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16. Tessellating ‘Honeycombs’
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A. F. I. Bajunid, M. Y. Abbas, and A. H. Nawawi
- Published
- 2011
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17. A Randomized Pilot Study on the Effects of Combined Tocotrienol-Tocopherol Mixed Fraction and Vitamin C on Inflammatory Status and Lipid Profile in Statin-Treated High Risk Patients
- Author
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Rahman TH, Abdul, primary, AR, Azlina, additional, S, Muid, additional, AS, Ramli, additional, SK, Vasudevan, additional, Osman, Muhamed T, additional, and H, Nawawi, additional
- Published
- 2016
- Full Text
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18. Clinical usefulness of tumour markers
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L C, Lai, S K, Cheong, K L, Goh, C F, Leong, C S, Loh, J B, Lopez, H, Nawawi, V, Sivanesaratnam, and R, Subramaniam
- Subjects
Male ,Neoplasms ,Biomarkers, Tumor ,Humans ,Female ,Prognosis - Abstract
Tumour markers are substances related to the presence or progress of a tumour. An ideal tumour marker is (1) detectable only when malignancy is present, (2) specific for the type and site of malignancy, (3) correlates with the amount of malignant tissue present and (4) responds rapidly to a change in tumour size. At present, no tumour marker fulfills all of the above criteria. The first part of the review discusses the clinical usefulness of the commonly requested serum tumour markers, namely, prostate-specific antigen (PSA), CA 19-9, carcinoembryonic antigen (CEA), CA 125, CA 15-3, human chorionic gonadotrophin (hCG) and alpha-foetoprotein (AFP). It is hoped that this review article will decrease the abuse and misuse of these commonly requested serum tumour markers. The second part of the review discusses the clinical usefulness of catecholamines and their metabolites, calcitonin, thyroglobulin, parathyroid hormone, prolactin, adrenocorticotrophic hormone, oestrogen and progesterone receptors, p53, HER-2/c-erbB2, BRCA1 and BRCA2.
- Published
- 2005
19. The prognostic value of C-reactive protein (CRP) levels in patients with acute ischaemic stroke
- Author
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B B, Hamidon, S, Sapiah, H, Nawawi, and A A, Raymond
- Subjects
Adult ,Male ,Middle Aged ,Prognosis ,Brain Ischemia ,Stroke ,C-Reactive Protein ,Acute Disease ,Humans ,Female ,Prospective Studies ,Biomarkers ,Aged ,Follow-Up Studies - Abstract
Increasing evidence suggests that inflammation plays an important role in the development of both cardiovascular and cerebrovascular events. Recently C-reactive protein (CRP) levels have been reported to be a prognostic factor for cerebrovascular and cardiovascular events. The main objective of the study was to evaluate the prognostic value of CRP levels in a first ever ischaemic stroke at one month. All ischaemic stroke patients who were admitted to Hospital Universiti Kebangsaan Malaysia (HUKM) between May 2002 and July 2002 were eligible for the study. CRP levels were taken within 72 hours after an acute ischaemic stroke. The functional ability was assessed using the Barthel Index (BI) after one month of stroke. During the study period 84 patients were admitted to HUKM with the diagnosis of ischaemic stroke; 49 patients were enrolled and 35 were excluded. Twenty-nine patients (59.2%) had elevated CRP levels (median 1.64+/-3.07 mg/dL, range 0.06 to 16.21 mg/dL). Elevated CRP levels were found to be a predictor of severe functional disability (BI5) and were also associated with larger infarcts. In conclusion, elevated CRP levels are associated with poorer functional outcome and predict a larger infarct size.
- Published
- 2005
20. Measurement of intima-media thickness of common carotid arteries using ultrasound in patients with familial and non-familial hypercholesterolaemia and correlation of intima-media thickness to obesity
- Author
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M, Nafikudin, H, Nawawi, S, Muid, R, Annuar, K, Yusoff, and B A, Khalid
- Subjects
Adult ,Hyperlipoproteinemia Type II ,Male ,Carotid Artery, Common ,Hypercholesterolemia ,Humans ,Female ,Obesity ,Middle Aged ,Tunica Intima ,Tunica Media ,Ultrasonography - Abstract
Ultrasonographic measurements of the intima-media thickness (IMT) of common carotid arteries (CCA) were taken in 50 patients with familial hypercholesterolaemia (FH) and 57 patients with non-familial hypercholesterolemia (NFH). The lipid profile, body mass index (BMI) and waist-hip ratio (WHR) of each patient were recorded. In FH patients, the IMT was significantly higher in overweight and elevated WHR subgroups compared to the normal with significant correlations between BMI and WHR to the IMT. In NFH patients, the IMT was significantly higher in the elevated WHR compared to the normal subgroup but the correlations between either BMI or WHR to IMT were insignificant. These suggest that the environmentally modified anthropometric indices may have an effect on atherosclerosis in genetically determined hypercholesterolaemia in FH patients.
- Published
- 2004
21. Serum levels of bone-specific alkaline phosphatase and procollagen type I carboxyterminal peptide in vitamin D deficiency
- Author
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H, Nawawi and S I, Girgis
- Subjects
Adult ,Aged, 80 and over ,Immunoassay ,Male ,Middle Aged ,Alkaline Phosphatase ,Vitamin D Deficiency ,Peptide Fragments ,Statistics, Nonparametric ,Humans ,Female ,Biomarkers ,Procollagen ,Aged - Abstract
Vitamin D deficiency in adults causes osteomalacia where there is a defect in bone mineralization resulting in an excess of unmineralised osteoid in the bone matrix. The aim of this study was to evaluate the markers of bone formation: total (TALP), bone-specific alkaline phosphatase (BSALP) and procollagen type I carboxyterminal peptide (PICP) in vitamin D deficiency. We studied 100 vitamin D deficient subjects and 82 gender-matched controls. Vitamin D deficiency was defined as serum 25-hydroxyvitamin D level of less than 7 ng/ml, and greater than 10 ng/ml for normal controls. Serum TALP assay was performed by a standard automated method, BSALP and PICP were measured by enzyme immunoassays (Metra Biosystems) and vitamin D by radioimmunoassay. There was significant difference in the TALP between female vitamin D deficient and control subjects (mean +/- sem = 99.8 +/- 8.2 vs 70.5 +/- 2.8 iu/l, p0.001). Elevated serum TALP (130 iu/l) was found in 20% (20/100) of the vitamin D deficient patients. There were no significant differences in BSALP or PICP between vitamin D deficient patients and gender-matched control subjects. There was no correlation between vitamin D and PICP in patients but in control subjects, a significant negative correlation (r= -0.431, p0.0001) was found. In conclusion, although elevated TALP was observed in a minority of vitamin D deficient patients, it is a better marker than PICP. The lack of PICP response in vitamin D deficient subjects suggests the possibility of vitamin D deficiency leading to a block in osteoblast differentiation.
- Published
- 2003
22. External quality assurance in Malaysia
- Author
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H, Nawawi, H H, Lim, and I, Zakiah
- Subjects
Quality Assurance, Health Care ,Malaysia ,Humans ,Organizational Objectives ,Reproducibility of Results ,Clinical Chemistry Tests ,Reference Standards ,Laboratories, Hospital - Abstract
An activity supportive of the MOH QA Programme, the National EQAS for clinical chemistry monitors for analytical performance in core routine biochemical testing by the pathology laboratories, with unsatisfactory performance scores serving to alert against deficiencies or problems and the scores in subsequent challenges providing the feedback of effectiveness of remedial actions taken. While unacceptable individual analyte performance score (variance index score, VIS) indicated problems in instruments, reagent and calibrators, or the use of inherently poorer methods, repeated occurrence of unsatisfactory OMRVIS was traceable to generally poor laboratory management of usually inadequately-equipment small laboratories. The outcome has been one of slow but gradual improvement in the overall performance of participating laboratories, with a move towards methods upgrading and standardization to achieve greater concordance of results. Presently, the programme is limited to 61 government and 4 private hospital laboratories in the country for 12 commonly assayed clinical biochemistry analytes. It is hoped that the NEQAS could be extended to the other private laboratories and that of academic institutions. However, this is dependent to a large extent on the manpower and financial support obtainable by the organizing body of the programme in the future. Belk and Sunderman, 1947 demonstrated that laboratories participating in an quality assessment scheme could rapidly and dramatically improve their analytical performance. In some countries, participation has become mandatory, and acceptable performance is a requirement in laboratory accreditation. The need and value of the NEQAP is, therefore, evident. While there may be limitations in the national programme. efforts are being made at improving the programme within the means and resources of the organising body. The goals of the NEQAP are not just to monitor performance but also to educate. On this, matters related to and supportive of these goals have also been pursued. The annual workshop/forum on quality controls had allowed exchange of information between representatives of participating laboratories and the organising body. Recently in the 1997 MOH Quality Improvement evaluation, Quality Control has been evaluated together with the other 17 such activities. The study on knowledge, attitude and practice has provided the necessary feedback and will be used for future planning in making efforts at increasing the effectiveness and benefits of the all QC activities including this NEQAP for clinical chemistry. In addition, there is a need to look into areas such as selection of methods and test systems, and improvement of continuing education, training as well as research in quality improvement as suggested by the Quality Improvement evaluation.
- Published
- 2000
23. We-P13:328 Metabolic syndrome is associated with inflammation but not prothrombogenesis and endothelial dysfunction
- Author
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K. Yusoff, H. Nawawi, and R. Ibrahim
- Subjects
business.industry ,Immunology ,Internal Medicine ,Medicine ,Inflammation ,General Medicine ,medicine.symptom ,Metabolic syndrome ,Endothelial dysfunction ,Cardiology and Cardiovascular Medicine ,business ,medicine.disease - Published
- 2006
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24. Kompetensi mengapresiasi cerita pendek berbahasa Arab mahasiswa Program Pendidikan Bahasa Arab FPBS IKIP Malang / oleh Imam Fu'adi
- Author
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Fu'adi, Imam, 1. HASAN, IMAM 2. H., NAWAWI, M. SYATIBI, Fu'adi, Imam, and 1. HASAN, IMAM 2. H., NAWAWI, M. SYATIBI
- Published
- 2007
25. Optimal antioxidant activity with moderate concentrations of Tocotrienol rich fraction (TRF) in in vitro assays.
- Author
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S. Muid, A. M. Ali, K. Yusoff, and H. Nawawi
- Subjects
VITAMIN E ,ANTIOXIDANTS ,OXIDATIVE stress ,ATHEROSCLEROSIS ,TOCOTRIENOL - Abstract
Vitamin E is known to have potent antioxidant activity and plays an important role in reducing oxidative stress, a pivotal step in atherogenesis. However, several randomised clinical trials using α-tocopherol have failed to demonstrate consistent beneficial effects of antioxidants against atherosclerosis and clinical endpoints. Tocotrienol, a vitamin E compound analogue is shown to have more potent antioxidant activity compared to tocopherol. Finding the optimal anti-oxidative dose is crucial and may effectively be applied for cardioprotection in human. The objective of this study was to determine the optimal dose of tocotrienol rich fraction (TRF) with highest antioxidant activity in vitro using the ferric thiocyanate (FTC), 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and 2', 7'- dichlorofluorescein diacetate (DCFHDA) assays. It was found that TRF exhibited potent antioxidant and free radical scavenging activities with an IC
50 of 22.10 + 0.01 µg/ml. In all assays, TRF had optimal antioxidant activity at moderate concentrations (10-100 µg/ml). In conclusion, TRF has potent antioxidant activity, which is optimal at moderate concentrations. [ABSTRACT FROM AUTHOR]- Published
- 2013
26. Reduction in Serum Levels of Adhesion Molecules, Interleukin-6 and C-reactive Protein Following Short-term Low-dose Atorvastatin Treatment in Patients with Non-familial Hypercholesterolemia.
- Author
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H. Nawawi
- Published
- 2003
27. The influence of the stakeholders’ perspective for the performance measurement in local authorities.
- Author
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N Rahmat and A H Nawawi
- Published
- 2020
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28. Content validity of governing in Building Information Modelling (BIM) implementation assessment instrument.
- Author
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N A H Hadzaman, R Takim, A H Nawawi, and N Mohamad Yusuwan
- Published
- 2018
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29. Non-structural Components influencing Hospital Disaster Preparedness in Malaysia.
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N M Samsuddin, R Takim, A H Nawawi, M R Rosman, and S N A SyedAlwee
- Published
- 2018
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30. Coronary risk factor profiles according to different age categories in premature coronary artery disease patients who have undergone percutaneous coronary intervention.
- Author
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Nazli SA, Rosman A, Mohd Kasim NA, Al-Khateeb A, Ul-Saufie AZ, Md Radzi AB, Ibrahim KS, Kasim SS, and Nawawi H
- Subjects
- Humans, Male, Female, Middle Aged, Age Factors, Aged, Risk Factors, Adult, Hypertension complications, Heart Disease Risk Factors, Percutaneous Coronary Intervention adverse effects, Coronary Artery Disease
- Abstract
Many studies have investigated the coronary risk factors (CRFs) among premature coronary artery disease (PCAD) patients. However, reports on the proportion and CRFs of PCAD according to different age cut-offs for PCAD is globally under-reported. This study aimed to determine the proportion of PCAD patients and analyse the significant CRFs according to different age cut-offs among percutaneous coronary intervention (PCI)-treated patients. Patients who underwent PCI between 2007 and 2018 in two cardiology centres were included (n = 29,241) and were grouped into four age cut-off groups that defines PCAD: (A) Males/females: < 45, (B) Males: < 50; Females: < 55, (C) Males: < 55; Females: < 60 and (D) Males: < 55; Females: < 65 years old. The average proportion of PCAD was 28%; 9.2% for group (A), 21.5% for group (B), 38.6% and 41.9% for group (C) and (D), respectively. The top three CRFs of PCAD were LDL-c level, TC level and hypertension (HTN). Malay ethnicity, smoking, obesity, family history of PCAD, TC level and history of MI were the independent predictors of PCAD across all age groups. The proportion of PCAD in Malaysia is higher compared to other studies. The most significant risk factors of PCAD are LDL-c, TC levels and HTN. Early prevention, detection and management of the modifiable risk factors are highly warranted to prevent PCAD., (© 2024. The Author(s).)
- Published
- 2024
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31. Use of thermal drone in detection and assessment of larval mass temperature in decomposed rabbit carcasses.
- Author
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Syed Mohd Daud SM, Heo CC, Mohd Yusof MYP, Khoo LS, Chainchel Singh MK, Mahmood MS, Bin Muhammad Nasir MD, and Nawawi H
- Subjects
- Animals, Male, Rabbits, Cadaver, Larva, Temperature, Unmanned Aerial Devices
- Abstract
Manual ground searches and cadaver dogs are traditional methods for locating remains, but they can be time- and resource-intensive, resulting in the decomposition of bodies and delay in victim identification. Therefore, thermal imaging has been proposed as a potentially useful tool for detecting remains based on their temperature. This study investigated the potential of a novel search technique of thermal drones to detect surface remains through the detection of maggot mass temperatures. Two trials were carried out at Selangor, Malaysia, each utilizing 12 healthy male Oryctolagus cuniculus European white rabbits and DJI Matrice 300 RTK drone China, equipped with a thermal camera; Zenmuse H20T to record the thermal imaging footage of the carcasses at various heights (15, 30, 60-100 m) for 14 days for each trial. Our results demonstrated that the larval masses and corresponding heat emissions were at their largest during the active decay stage; therefore, all the carcasses were observable in thermal images on day 5 and remained until day 7. Statistical analyses showed that (1) no statistically significant differences in thermal images between clothed and unclothed subjects (p > 0.05); (2) 15 m above ground level was proven to be the optimal height, as it showed the greatest contrast between the carcass heat signature and the background (p < 0.005). Our data suggested the potential window of detection of thermal signatures was detectable up to 7 days post-deposition. This could be an important guideline for the search and recovery teams for operational implementation in this tropical region., (© 2024 The Authors. Journal of Forensic Sciences published by Wiley Periodicals LLC on behalf of American Academy of Forensic Sciences.)
- Published
- 2024
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32. Correction: Safety evaluation of saffron extracts in early and established atherosclerotic New Zealand white rabbits.
- Author
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Rahim INA, Kasim NAM, Omar E, Muid SA, and Nawawi H
- Abstract
[This corrects the article DOI: 10.1371/journal.pone.0295212.]., (Copyright: © 2024 Rahim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
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33. A case report of heterozygous familial hypercholesterolaemia with LDLR gene mutation complicated by premature coronary artery disease detected in primary care.
- Author
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Abdul-Halim MAZ, Abdul-Hamid H, Baharudin N, Mohamed-Yassin MS, Kasim SS, Nawawi H, Qureshi N, and Ramli AS
- Abstract
Background: Familial hypercholesterolaemia (FH) is an autosomal dominant genetic condition predominantly caused by the low-density lipoprotein receptor ( LDLR ) gene mutation., Case Summary: This is the case of a 54-year-old Malay woman with genetically confirmed FH complicated by premature coronary artery disease (PCAD). She was clinically diagnosed in primary care at 52 years old, fulfilling the Simon Broome Criteria (possible FH), Dutch Lipid Clinic Criteria (score of 8: probable FH), and Familial Hypercholesterolaemia Case Ascertainment Tool (relative risk score of 9.51). Subsequently, she was confirmed to have a heterozygous LDLR c.190+4A>T intron 2 pathogenic variant at the age of 53 years. She was known to have hypercholesterolaemia and was treated with statin since the age of 25. However, the lipid-lowering agent was not intensified to achieve the recommended treatment target. The delayed FH diagnosis has caused this patient to have PCAD and percutaneous coronary intervention (PCI) at the age of 29 years and a second PCI at the age of 49 years. She also has a very strong family history of hypercholesterolaemia and PCAD, where seven out of eight of her siblings were affected. Despite this, FH was not diagnosed early, and cascade screening of family members was not conducted, resulting in a missed opportunity to prevent PCAD., Discussion: Familial hypercholesterolaemia can be clinically diagnosed in primary care to identify those who may require genetic testing. Multidisciplinary care focuses on improving identification, cascade screening, and management of FH, which is vital to improving prognosis and ultimately preventing PCAD., Competing Interests: Conflict of interest: None declared., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Cardiology.)
- Published
- 2024
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- View/download PDF
34. Safety evaluation of saffron extracts in early and established atherosclerotic New Zealand white rabbits.
- Author
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Abd Rahim IN, Mohd Kasim NA, Omar E, Abdul Muid S, and Nawawi H
- Subjects
- Humans, Rabbits, Animals, Cholesterol, Body Weight, Cholesterol, Dietary, Crocus, Atherosclerosis pathology, Hypercholesterolemia, Hyperlipidemias
- Abstract
Previous research has shown that natural medications pose health risks, especially in subjects with comorbidities. This study aimed to evaluate the safety of saffron ethanolic extract (SEE) administration in early and established atherosclerotic rabbits. Rabbits were given a high-cholesterol diet (HCD) for 4 and 8 weeks to induce early and established atherosclerosis respectively, and then they were treated with 50 and 100 mg/kg/day SEE. The body weight of the animals was recorded. Blood samples were collected at baseline, pre-treatment, and post-treatment for hematological studies, lipid profiles, and biochemical profiles. Tissue specimens of the vital organs were subjected to histological examination. The above parameters were significantly altered post-intervention with 4 and 8 weeks of HCD. No significant differences in body weight were observed in all the groups post-treatment with 50 and 100mg/kg of SEE compared to pre-treatment. However, low-density lipoprotein cholesterol, total cholesterol, serum urea, and glucose significantly decreased post-treatment with 50 and 100mg/kg/day SEE compared to pre-treatment in early and established atherosclerosis groups. Hematological parameters that were affected post-intervention with HCD returned to their baseline values post-treatment with 50 and 100mg/kg/day SEE. There was a significant improvement in the vital organs post-treatment with 50 and 100mg/kg SEE. SEE can safely be administered without causing harmful effects on the hematological, biochemical profiles, and vital organs. Notably, SEE exerts hypolipidemic and hypoglycemic effects on atherosclerotic conditions. Further clinical trials are warranted to ensure the safety of saffron administration in patients with atherosclerosis-related diseases., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Abd Rahim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
- Full Text
- View/download PDF
35. Attainment of Low-Density Lipoprotein Cholesterol Targets and Prescribing Pattern of Lipid-Lowering Medications among Patients with Familial Hypercholesterolemia Attending Specialist Clinics.
- Author
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Chua YA, Nazli SA, Rosman A, Kasim SS, Ibrahim KS, Md Radzi AB, Mohd Kasim NA, and Nawawi H
- Subjects
- Humans, Cholesterol, LDL, Practice Patterns, Physicians', Treatment Outcome, Anticholesteremic Agents therapeutic use, Ezetimibe therapeutic use, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Hyperlipoproteinemia Type II drug therapy
- Abstract
Aims: Patients with familial hypercholesterolemia (FH) are known to have higher exposure to coronary risk than those without FH with similar low-density lipoprotein cholesterol (LDL-C) level. Lipid-lowering medications (LLMs) are the mainstay treatments to lower the risk of premature coronary artery disease in patients with hypercholesterolemia. However, the LLM prescription pattern and its effectiveness among Malaysian patients with FH are not yet reported. The aim of this study was to report the LLM prescribing pattern and its effectiveness in lowering LDL-C level among Malaysian patients with FH treated in specialist hospitals., Methods: Subjects were recruited from lipid and cardiac specialist hospitals. FH was clinically diagnosed using the Dutch Lipid Clinic Network Criteria. Patients' medical history was recorded using a standardized questionnaire. LLM prescription history and baseline LDL-C were acquired from the hospitals' database. Blood samples were acquired for the latest lipid profile assay., Results: A total of 206 patients with FH were recruited. Almost all of them were on LLMs (97.6%). Only 2.9% and 7.8% of the patients achieved the target LDL-C of <1.4 and <1.8 mmol/L, respectively. The majority of patients who achieved the target LDL-C were prescribed with statin-ezetimibe combination medications and high-intensity or moderate-intensity statins. All patients who were prescribed with ezetimibe monotherapy did not achieve the target LDL-C., Conclusion: The majority of Malaysian patients with FH received LLMs, but only a small fraction achieved the therapeutic target LDL-C level. Further investigation has to be conducted to identify the cause of the suboptimal treatment target attainment, be it the factors of patients or the prescription practice.
- Published
- 2023
- Full Text
- View/download PDF
36. Reducing Premature Coronary Artery Disease in Malaysia by Early Identification of Familial Hypercholesterolemia Using the Familial Hypercholesterolemia Case Ascertainment Tool (FAMCAT): Protocol for a Mixed Methods Evaluation Study.
- Author
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Ramli AS, Qureshi N, Abdul-Hamid H, Kamal A, Kanchau JD, Shahuri NS, Akyea RK, Silva L, Condon L, Abdul-Razak S, Al-Khateeb A, Chua YA, Mohamed-Yassin MS, Baharudin N, Badlishah-Sham SF, Abdul Aziz AF, Mohd Kasim NA, Sheikh Abdul Kadir SH, Kai J, Leonardi-Bee J, and Nawawi H
- Abstract
Background: Familial hypercholesterolemia (FH) is predominantly caused by mutations in the 4 FH candidate genes (FHCGs), namely, low-density lipoprotein receptor (LDLR), apolipoprotein B-100 (APOB-100), proprotein convertase subtilisin/kexin type 9 (PCSK9), and the LDL receptor adaptor protein 1 (LDLRAP1). It is characterized by elevated low-density lipoprotein cholesterol (LDL-c) levels leading to premature coronary artery disease. FH can be clinically diagnosed using established clinical criteria, namely, Simon Broome (SB) and Dutch Lipid Clinic Criteria (DLCC), and can be identified using the Familial Hypercholesterolemia Case Ascertainment Tool (FAMCAT), a primary care screening tool., Objective: This study aims to (1) compare the detection rate of genetically confirmed FH and diagnostic accuracy between the FAMCAT, SB, and DLCC in the Malaysian primary care setting; (2) identify the genetic mutation profiles, including novel variants, in individuals with suspected FH in primary care; (3) explore the experience, concern, and expectation of individuals with suspected FH who have undergone genetic testing in primary care; and (4) evaluate the clinical utility of a web-based FH Identification Tool that includes the FAMCAT, SB, and DLCC in the Malaysian primary care setting., Methods: This is a mixed methods evaluation study conducted in 11 Ministry of Health primary care clinics located at the central administrative region of Malaysia. In Work stream 1, the diagnostic accuracy study design is used to compare the detection rate and diagnostic accuracy of the FAMCAT, SB, and DLCC against molecular diagnosis as the gold standard. In Work stream 2, the targeted next-generation sequencing of the 4 FHCGs is used to identify the genetic mutation profiles among individuals with suspected FH. In Work stream 3a, a qualitative semistructured interview methodology is used to explore the experience, concern, and expectation of individuals with suspected FH who have undergone genetic testing. Lastly, in Work stream 3b, a qualitative real-time observation of primary care physicians using the "think-aloud" methodology is applied to evaluate the clinical utility of a web-based FH Identification Tool., Results: The recruitment for Work stream 1, and blood sampling and genetic analysis for Work stream 2 were completed in February 2023. Data collection for Work stream 3 was completed in March 2023. Data analysis for Work streams 1, 2, 3a, and 3b is projected to be completed by June 2023, with the results of this study anticipated to be published by December 2023., Conclusions: This study will provide evidence on which clinical diagnostic criterion is the best to detect FH in the Malaysian primary care setting. The full spectrum of genetic mutations in the FHCGs including novel pathogenic variants will be identified. Patients' perspectives while undergoing genetic testing and the primary care physicians experience in utilizing the web-based tool will be established. These findings will have tremendous impact on the management of patients with FH in primary care and subsequently reduce their risk of premature coronary artery disease., International Registered Report Identifier (irrid): DERR1-10.2196/47911., (©Anis Safura Ramli, Nadeem Qureshi, Hasidah Abdul-Hamid, Aisyah Kamal, Johanes Dedi Kanchau, Nur Syahirah Shahuri, Ralph Kwame Akyea, Luisa Silva, Laura Condon, Suraya Abdul-Razak, Alyaa Al-Khateeb, Yung-An Chua, Mohamed-Syarif Mohamed-Yassin, Noorhida Baharudin, Siti Fatimah Badlishah-Sham, Aznida Firzah Abdul Aziz, Noor Alicezah Mohd Kasim, Siti Hamimah Sheikh Abdul Kadir, Joe Kai, Jo Leonardi-Bee, Hapizah Nawawi. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 02.06.2023.)
- Published
- 2023
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- View/download PDF
37. In vitro study of Nigella sativa and thymoquinone activity on endothelial activation and monocyte adhesion.
- Author
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Yuhainis Firus Khan A, Mohtar F, Rahman TA, Muid SA, Froemming GRA, and Nawawi H
- Subjects
- Humans, Endothelial Cells, Intercellular Adhesion Molecule-1 genetics, Intercellular Adhesion Molecule-1 pharmacology, Vascular Cell Adhesion Molecule-1 genetics, Vascular Cell Adhesion Molecule-1 pharmacology, Monocytes, Nigella sativa chemistry
- Abstract
Introduction: Thymoquinone (TQ) is one of the bioactive compounds in Nigella sativa (NS). Also known as black seeds/cumin, it has been postulated to possess anti-atherogenic properties. However, research on the effects of NS oil (NSO) and TQ on atherogenesis remain scarce. The aim of this study is to determine gene and protein expression of Intercellular Adhesion Molecule-1 (ICAM-1), Vascular Cell Adhesion Molecule-1 (VCAM-1), and Endothelial-eukocyte adhesion molecule (E-selectin) in Human Coronary Artery Endothelial Cells (HCAECs)., Methods: HCAECs were stimulated for 24 hours (h) with 200 µg/ml of Lipopolysaccharides (LPS) and different concentrations of NSO (55, 110, 220, 440 µg/ml) or TQ (4.5, 9.0, 18.0, 36.0 µm). The effects of NSO and TQ on gene and protein expressions were measured using multiplex gene assay and ELISA assay, respectively. Rose Bengal assay was used to analyse monocyte binding activity., Results: NSO and TQ significantly reduced ICAM-1 and VCAM-1 gene and protein expressions. TQ showed significant reduction activity of the biomarkers in dose dependent manner. HCAECs pre-treated with NSO and TQ for 24 h significantly lowered monocytes adherence compared to non-treated HCAECs., Conclusions: NSO and TQ supplementation have anti-atherogenic properties and inhibit monocytes' adherence to HCAECs via down-regulation of ICAM-1 expression. NSO could potentially be incorporated in standard treatment regimens to prevent atherosclerosis and its related complications., Competing Interests: The authors report no conflicts of interest in this work.
- Published
- 2023
- Full Text
- View/download PDF
38. Design, development, utility and usability testing of the EMPOWER-SUSTAIN Self-Management Mobile App © among primary care physicians and patients with metabolic syndrome.
- Author
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Daud MH, Yusoff FH, Abdul-Razak S, Baharudin N, Mohamed-Yassin MS, Badlishah-Sham SF, Nikmat AW, Isa MR, Jamil N, Nawawi H, and Ramli AS
- Abstract
Objective: This study aimed to design, develop, assess and refine the EMPOWER-SUSTAIN Self-Management Mobile App
© among primary care physicians (PCP) and patients with metabolic syndrome (MetS) in primary care., Methodology: Using the software-development-life-cycle (SDLC) iterative model, storyboard and wireframe were drafted; and a mock prototype was designed to illustrate the content and function graphically. Subsequently, a working prototype was developed. Qualitative studies using the 'think-aloud' and cognitive-task-analysis methods were conducted for the utility and usability testing. Topic guide was based on the 10-Nielsen's-Heuristic-Principles. Utility testing was conducted among PCP in which they 'thought-aloud' while performing tasks using the mobile app. Usability testing was conducted among MetS patients after they were given the app for 3 weeks. They 'thought-aloud' while performing tasks using the app. Interviews were audio- and video-recorded, and transcribed verbatim. Thematic content analysis was performed., Result: Seven PCP and nine patients participated in the utility and usability testing, respectively. Six themes (efficiency of use, user control and freedom, appearance and aesthetic features, clinical content, error prevention, and help and documentation) emerged. PCP found the mobile app attractive and relevant sections were easy to find. They suggested adding 'zoom/swipe' functions and some parts needed bigger fonts. Patients commented that the app was user-friendly, has nice interface, and straightforward language. It helped them understand their health better. Based on these findings, the mobile app was refined., Conclusion: This app was produced using a robust SDLC method to increase users' satisfaction and sustainability of its use. It could potentially improve self-management behaviour among MetS patients in primary care., Competing Interests: The authors declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article., (© The Author(s) 2023.)- Published
- 2023
- Full Text
- View/download PDF
39. Case Series of Genetically Confirmed Index Cases of Familial Hypercholesterolemia in Primary Care.
- Author
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Kamal A, Kanchau JD, Shahuri NS, Mohamed-Yassin MS, Baharudin N, Abdul Razak S, Badlishah-Sham SF, Abdul-Hamid H, Abdul Aziz AF, Al-Khateeb A, Chua YA, Mohd Kasim NA, Sheikh Abdul Kadir SH, Nawawi H, Qureshi N, and Ramli AS
- Subjects
- Humans, Cholesterol, LDL genetics, Cholesterol, LDL therapeutic use, Phenotype, Mutation, Apolipoproteins B genetics, Apolipoproteins B therapeutic use, Primary Health Care, Proprotein Convertase 9 genetics, Proprotein Convertase 9 therapeutic use, Hyperlipoproteinemia Type II diagnosis, Hyperlipoproteinemia Type II genetics
- Abstract
BACKGROUND In Malaysia, the prevalence of genetically confirmed heterozygous familial hypercholesterolemia (FH) was reported as 1 in 427. Despite this, FH remains largely underdiagnosed and undertreated in primary care. CASE REPORT In this case series, we report 3 FH cases detected in primary care due to mutations in the low-density lipoprotein receptor (LDLR), apolipoprotein-B (APOB), and proprotein convertase subtilisin/kexin type 9 (PCSK9) genes. The mutations in case 1 (frameshift c.660del pathogenic variant in LDLR gene) and case 2 (missense c.10579C>T pathogenic variant in APOB gene) were confirmed as pathogenic, while the mutation in case 3 (missense c.277C>T mutation in PCSK9 gene) may have been benign. In case 1, the patient had the highest LDL-c level, 8.6 mmol/L, and prominent tendon xanthomas. In case 2, the patient had an LDL-c level of 5.7 mmol/L and premature corneal arcus. In case 3, the patient had an LDL-c level of 5.4 mmol/L but had neither of the classical physical findings. Genetic counseling and diagnosis were delivered by primary care physicians. These index cases were initially managed in primary care with statins and therapeutic lifestyle modifications. They were referred to the lipid specialists for up-titration of lipid lowering medications. First-degree relatives were identified and referred for cascade testing. CONCLUSIONS This case series highlights different phenotypical expressions in patients with 3 different FH genetic mutations. Primary care physicians should play a pivotal role in the detection of FH index cases, genetic testing, management, and cascade screening of family members, in partnership with lipid specialists.
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- 2023
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40. Evaluation on the Effectiveness of High Cholesterol Diet Feeding in Inducing Early and Established Atherosclerotic Lesions in New Zealand White Rabbits.
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Abd Rahim IN, Mohd Kasim NA, Omar E, Abd Muid S, and Nawawi H
- Subjects
- Rabbits, Male, Animals, Diet, Cholesterol, Lipids, Body Weight, Atherosclerosis metabolism
- Abstract
Background: Various methods were used to induce atherosclerosis in rabbits. One of the most common methods used is high-cholesterol diet (HCD) feeding. However, the exact amount and duration of HCD feeding to induce early and established atherosclerosis in New Zealand white rabbits (NZWR) continue to be debated among researchers. Therefore, this study aims to evaluate the effectiveness of 1% HCD feeding in inducing early and established atherosclerosis lesions in NZWR., Methods: A total of 50 g/kg/day of 1% HCD was fed to three to four months old male rabbits weighing 1.8 to 2.0 kg for four and eight weeks to induce early and established atherosclerosis respectively. The body weight and lipid profile were measured at baseline and post-HCD intervention. Following euthanasia, the aorta was excised and prepared for histology and immunohistochemical analysis to confirm the stages of atherosclerosis., Results: The mean body weight of the rabbits in early and established atherosclerosis groups increased significantly up to 17.5% ( p = 0.026) and 19.75% ( p = 0.019) respectively compared to baseline. The total cholesterol level dramatically elevated up to 13-fold ( p = 0.005) and 38-fold ( p = 0.013) compared to baseline, after four and eight weeks of 1% HCD feeding respectively. The low-density lipoprotein level significantly increased up to 42-fold ( p = 0.006) and 128-fold ( p = 0.011) compared to baseline, after four and eight weeks of 1% HCD feeding respectively. Rabbits fed with four and eight weeks 1% HCD significantly developed 5.79% ( p = 0.008) and 21.52% ( p = 0.008) aortic lesion areas compared to the control group. Histological evaluation in the aorta showed accumulation of foam cells in early atherosclerosis group and formation of fibrous plaque and lipid core in the established atherosclerosis group. Rabbits fed with eight weeks HCD showed higher tissue expressions of ICAM-1, VCAM-1, e-selectin, IL-6, IL-8, NF-κBp65, and MMP-12 compared to four weeks of HCD intervention., Conclusions: A total of 50 g/kg/day of 1% HCD for four and eight weeks is sufficient to induce early and established atherosclerosis in NZWR respectively. The consistent results through this method could facilitate researchers in inducing early and established atherosclerosis in NZWR., Competing Interests: The authors declare no conflict of interest., (© 2023 The Author(s). Published by IMR Press.)
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- 2023
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41. PCSK9 Inhibitors Reduce PCSK9 and Early Atherogenic Biomarkers in Stimulated Human Coronary Artery Endothelial Cells.
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Zulkapli R, Muid SA, Wang SM, and Nawawi H
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- Humans, PCSK9 Inhibitors, Proprotein Convertase 9 genetics, Endothelial Cells metabolism, NF-kappa B metabolism, Coronary Vessels metabolism, Biomarkers, Atherosclerosis metabolism, Anticholesteremic Agents therapeutic use
- Abstract
Despite reports on the efficacy of proprotein convertase subtilisin-Kexin type 9 (PCSK9) inhibitors as a potent lipid-lowering agent in various large-scale clinical trials, the anti-atherogenic properties of PCSK9 inhibitors in reducing PCSK9 and atherogenesis biomarkers via the NF-ĸB and eNOS pathway has yet to be established. This study aimed to investigate the effects of PCSK9 inhibitors on PCSK9, targeted early atherogenesis biomarkers, and monocyte binding in stimulated human coronary artery endothelial cells (HCAEC). HCAEC were stimulated with lipopolysaccharides (LPS) and incubated with evolocumab and alirocumab. The protein and gene expression of PCSK9, interleukin-6 (IL-6), E-selectin, intercellular adhesion molecule 1 (ICAM-1), nuclear factor kappa B (NF-ĸB) p65, and endothelial nitric oxide synthase (eNOS) were measured using ELISA and QuantiGene plex, respectively. The binding of U937 monocytes to endothelial cell capacity was measured by the Rose Bengal method. The anti-atherogenic effects of evolocumab and alirocumab were contributed to by the downregulation of PCSK9, early atherogenesis biomarkers, and the significant inhibition of monocyte adhesion to the endothelial cells via the NF-ĸB and eNOS pathways. These suggest the beyond cholesterol-lowering beneficial effects of PCSK9 inhibitors in impeding atherogenesis during the initial phase of atherosclerotic plaque development, hence their potential role in preventing atherosclerosis-related complications.
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- 2023
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42. Undertreatment and Underachievement of LDL-C Target among Individuals with High and Very High Cardiovascular Risk in the Malaysian Community.
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Razman AZ, Baharudin N, Mohd Kasim NA, Al-Khateeb A, Ismail Z, and Nawawi H
- Abstract
Dyslipidaemia is a major cause of morbidity and mortality. The aims of this study are to determine the prevalence of dyslipidaemia subtypes, the proportions of lipid-lowering therapy (LLT) use, and the achievement of low-density lipoprotein cholesterol (LDL-C) treatment targets for high-risk (HR) and very high-risk (VHR) Malaysians. This cross-sectional study involves 5279 participants across 11 states in Malaysia. The data were obtained through a standardised questionnaire, anthropometric measurements, venous glucose and lipid profile. The participants with existing cardiovascular disease (CVD) or diabetes with at least one of the other major risk factors (smoking, hypertension or dyslipidaemia) were grouped into the VHR category. Other participants were risk-categorised using the Framingham General CVD Risk Score (FRS-CVD). The prevalence of elevated LDL-C, LLT use and LDL-C target were set according to respective risk categories. Pearson's chi-squared test was used to test the difference in the proportions. The mean ± standard deviation (SD) age was 41.1 ± 14.8 years, and 62.2% (3283/5279) of the group were females. Within the participant group, 51.5% were found to have elevated total cholesterol, 28.8% had low HDL-C, and 33.8% had high triglyceride. As for elevated LDL-C, 9.8% were in VHR, 8.6% in HR, 5.8% in MR and 34.9% in LR categories. Among the VHR group, 75.8% were not on LLT, and only 15.9% achieved the LDL-C target. As for the HR category, 87.7% were not on LLT, and only 16.1% achieved the LDL-C target. Dyslipidaemia is highly prevalent among Malaysians. The majority of VHR and HR participants were not on LLT and did not achieve LDL-C treatment targets. Proactive programs are warranted to combat dyslipidaemia-associated CVD events in these groups.
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- 2022
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43. Genetic Spectrum of Familial Hypercholesterolaemia in the Malaysian Community: Identification of Pathogenic Gene Variants Using Targeted Next-Generation Sequencing.
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Razman AZ, Chua YA, Mohd Kasim NA, Al-Khateeb A, Sheikh Abdul Kadir SH, Jusoh SA, and Nawawi H
- Subjects
- Humans, Receptors, LDL genetics, High-Throughput Nucleotide Sequencing, Apolipoproteins B, Mutation, Adaptor Proteins, Signal Transducing genetics, Proprotein Convertase 9 genetics, Hyperlipoproteinemia Type II diagnosis, Hyperlipoproteinemia Type II epidemiology, Hyperlipoproteinemia Type II genetics
- Abstract
Familial hypercholesterolaemia (FH) is caused by mutations in lipid metabolism genes, predominantly in low-density lipoprotein receptor (LDLR), apolipoprotein B (APOB), proprotein convertase subtilisin/kexin-type 9 (PCSK9) and LDL receptor adaptor protein 1 (LDLRAP1). The prevalence of genetically confirmed FH and the detection rate of pathogenic variants (PV) amongst clinically diagnosed patients is not well established. Targeted next-generation sequencing of LDLR, APOB, PCSK9 and LDLRAP1 was performed on 372 clinically diagnosed Malaysian FH subjects. Out of 361 variants identified, 40 of them were PV (18 = LDLR, 15 = APOB, 5 = PCSK9 and 2 = LDLRAP1). The majority of the PV were LDLR and APOB, where the frequency of both PV were almost similar. About 39% of clinically diagnosed FH have PV in PCSK9 alone and two novel variants of PCSK9 were identified in this study, which have not been described in Malaysia and globally. The prevalence of genetically confirmed potential FH in the community was 1:427, with a detection rate of PV at 0.2% (12/5130). About one-fourth of clinically diagnosed FH in the Malaysian community can be genetically confirmed. The detection rate of genetic confirmation is similar between potential and possible FH groups, suggesting a need for genetic confirmation in index cases from both groups. Clinical and genetic confirmation of FH index cases in the community may enhance the early detection of affected family members through family cascade screening.
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- 2022
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44. Osteoblast Demineralization Induced by Oxidized High-Density Lipoprotein via the Inflammatory Pathway Is Suppressed by Adiponectin.
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Harun NH, Froemming GRA, Mohd Ismail A, Nawawi H, Mokhtar SS, and Abd Muid S
- Subjects
- Humans, Inflammation metabolism, Interleukin-6, Tumor Necrosis Factor-alpha, Bone Remodeling, Adiponectin pharmacology, Lipoproteins, HDL metabolism, Osteoblasts, Calcification, Physiologic
- Abstract
Low mineralization activity by human osteoblast cells (HOBs) indicates abnormal bone remodeling that potentially leads to osteoporosis. Oxidation, the most prominent form of high-density lipoprotein (HDL) modification, is suggested to affect bone mineralization through the inflammatory pathway. Adiponectin, which possesses anti-inflammatory activity, is postulated to have the ability to suppress the detrimental effects of oxidized HDL (oxHDL). This study aimed to investigate the effects of HDL before and after oxidation on markers of mineralization and inflammation. The protective effects of adiponectin on demineralization and inflammation induced by oxHDL were also investigated. OxHDL at 100 µg/mL protein had the highest inhibitory effect on mineralization, followed by lower calcium incorporation. OxHDL also had significantly lower expression of a mineralization marker (COL1A2) and higher expression of inflammatory markers (IL-6, TNF-α, and RELA proto-oncogene, NF-κβ (p65)) compared to the unstimulated control group. These findings suggest that oxHDL reduces the mineralization activity of HOBs by increasing the expression of inflammatory markers. Interestingly, co-incubation of adiponectin and oxHDL in HOBs resulted in higher expression of mineralization markers (ALPL, COL1A2, BGLAP, and RUNX2) and significantly reduced all targeted inflammatory markers compared to the oxHDL groups. On the contrary, HDL increased the expression of mineralization markers (COL1A2 and STAT-3) and exhibited lower expression of inflammatory cytokines (IL-6 and TNF-α), proving the protective effect of HDL beyond the reverse cholesterol transport activity., Competing Interests: The authors declare no conflict of interest.
- Published
- 2022
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45. A Systematic Review on Attenuation of PCSK9 in Relation to Atherogenesis Biomarkers Associated with Natural Products or Plant Bioactive Compounds in In Vitro Studies: A Critique on the Quality and Imprecision of Studies.
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Zulkapli R, Yusof MYPM, Abd Muid S, Wang SM, Firus Khan AY, and Nawawi H
- Subjects
- Biomarkers, Humans, Phytochemicals, Proprotein Convertase 9, Sterol Regulatory Element Binding Protein 1, Atherosclerosis, Biological Products
- Abstract
A systematic review was performed to identify all the related publications describing PCSK9 and atherogenesis biomarkers attenuation associated with a natural product and plant bioactive compounds in in vitro studies. This review emphasized the imprecision and quality of the included research rather than the detailed reporting of the results. Literature searches were conducted in Scopus, PubMed, and Science Direct from 2003 until 2021, following the Cochrane handbook. The screening of titles, abstracts, and full papers was performed by two independent reviewers, followed by data extraction and validity. Study quality and validity were assessed using the Imprecision Tool, Model, and Marker Validity Assessment that has been developed for basic science studies. A total of 403 articles were identified and 31 of those that met the inclusion criteria were selected. 13 different atherogenesis biomarkers in relation to PCSK9 were found, and the most studied biomarkers are LDLR, SREBP, and HNF1α. In terms of quality, our review suggests that the basic science study in investigating atherogenesis biomarkers is deficient in terms of imprecision and validity.
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- 2022
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46. The M ala y sian HE alth and Well B eing A ssessmen T (MyHEBAT) Study Protocol: An Initiation of a National Registry for Extended Cardiovascular Risk Evaluation in the Community.
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Firus Khan AY, Ramli AS, Abdul Razak S, Mohd Kasim NA, Chua YA, Ul-Saufie AZ, Jalaludin MA, and Nawawi H
- Subjects
- Adolescent, Adult, Aged, Heart Disease Risk Factors, Humans, Middle Aged, Prevalence, Registries, Risk Assessment, Risk Factors, Young Adult, Cardiovascular Diseases prevention & control, Hypercholesterolemia, Hyperlipidemias, Hyperlipoproteinemia Type II diagnosis, Hyperlipoproteinemia Type II epidemiology
- Abstract
Cardiovascular disease (CVD) has been a burden to many developing countries for decades, including Malaysia. Although various steps have been taken to prevent and manage CVD, it remains the leading cause of morbidity and mortality. The rising prevalence of CVD risk factors such as hypertension, hypercholesterolaemia, diabetes, overweight and obesity is the main driving force behind the CVD epidemic. Therefore, a nationwide health study coined as the Malaysian Health and Wellbeing Assessment (MyHEBAT) was designed. It aimed to investigate the prevalence of CVD and the associated risk factors in the community across Malaysia. The MyHEBAT study recruited participants (18-75 years old) through community health screening programmes from 11 states in Malaysia. The MyHEBAT study was further divided into two sub-studies, namely, the Cardiovascular Risk Epidemiological Study (MyHEBAT-CRES) and the MyHEBAT Familial Hypercholesterolaemia Study (MyHEBAT-FH). These studies assessed the prevalence of CVD risk factors and the prevalence of FH in the community, respectively. The data garnered from the MyHEBAT study will provide information for healthcare providers to devise better prevention and clinical practice guidelines for managing CVD in Malaysia.
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- 2022
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47. Familial hypercholesterolaemia and coronary risk factors among patients with angiogram-proven premature coronary artery disease in an Asian cohort.
- Author
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Nazli SA, Chua YA, Mohd Kasim NA, Ismail Z, Md Radzi AB, Ibrahim KS, Kasim SS, Rosman A, and Nawawi H
- Subjects
- Angiography, Cholesterol, LDL, Humans, Male, Middle Aged, Prevalence, Risk Factors, Coronary Artery Disease diagnostic imaging, Coronary Artery Disease epidemiology, Hyperlipoproteinemia Type II complications, Hyperlipoproteinemia Type II diagnosis, Hyperlipoproteinemia Type II epidemiology, Hypertension complications, Hypertension epidemiology
- Abstract
Background: Familial hypercholesterolaemia (FH) patients have elevated levels of low-density lipoprotein cholesterol, rendering them at high risk of premature coronary artery disease (PCAD). However, the FH prevalence among angiogram-proven PCAD (AP-PCAD) patients and their status of coronary risk factors (CRFs) have not been reported in the Asian population., Objectives: This study aimed to (1) determine the prevalence of clinically diagnosed FH among AP-PCAD patients, (2) compare CRFs between AP-PCAD patients with control groups, and (3) identify the independent predictors of PCAD., Methods: AP-PCAD patients and FH patients without PCAD were recruited from Cardiology and Specialist Lipid Clinics. Subjects were divided into AP-PCAD with FH (G1), AP-PCAD without FH (G2), FH without PCAD (G3) and normal controls (G4). Medical records were collected from the clinic database and standardised questionnaires. FH was clinically diagnosed using Dutch Lipid Clinic Network Criteria., Results: A total of 572 subjects were recruited (males:86.4%; mean±SD age: 55.6±8.5years). The prevalence of Definite, Potential and All FH among AP-PCAD patients were 6%(19/319), 16% (51/319) and 45.5% (145/319) respectively. G1 had higher central obesity, family history of PCAD and family history of hypercholesterolaemia compared to other groups. Among all subjects, diabetes [OR(95% CI): 4.7(2.9,7.7)], hypertension [OR(95% CI): 14.1(7.8,25.6)], FH [OR(95% CI): 2.9(1.5,5.5)] and Potential (Definite and Probable) FH [OR(95% CI): 4.5(2.1,9.6)] were independent predictors for PCAD. Among FH patients, family history of PCAD [OR(95% CI): 3.0(1.4,6.3)] and Definite FH [OR(95% CI): 7.1(1.9,27.4)] were independent predictors for PCAD., Conclusion: Potential FH is common among AP-PCAD patients and contributes greatly to the AP-PCAD. FH-PCAD subjects have greater proportions of various risk factors compared to other groups. Presence of FH, diabetes, hypertension, obesity and family history of PCAD are independent predictors of PCAD. FH with PCAD is in very-high-risk category, hence, early management of modifiable CRFs in these patients are warranted., Competing Interests: The authors have declared that no competing interests exist.
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- 2022
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48. A Systematic Review on the Effect of Saffron Extract on Lipid Profile in Hyperlipidaemic Experimental Animal Models.
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Abd Rahim IN, Mohd Kasim NA, Isa MR, and Nawawi H
- Abstract
Saffron is widely used in traditional medicine to treat various medical disorders, including hyperlipidaemia. This study aims to systematically review the effects of saffron extract (SE) on lipid profile in in vivo studies. A strategic literature search was done following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The Scopus, PubMed (MEDLINE) and Web of Science databases and hand-searching methods were utilised to identify studies published up to January 2020 that reported the effects of SE on lipid profile in a hyperlipidaemic experimental animal model. A total of six articles met the inclusion criteria. The methods of extraction were aqueous ( n = 4), ethanolic ( n = 1) and hydroalcoholic ( n = 1) extracts. Five doses of SE ranging from 10 mg/kg to 100 mg/kg were administered to rats and hamsters, with a duration ranging from 10 days to 8 weeks. SE at doses of 40 mg/kg/day and 80 mg/kg/day significantly decreased the levels of total cholesterol (21.4%-35.4%), low-density lipoproteins (38.7%-50.0%) and triglycerides (TGs) (29.1%-45.0%) and markedly increased the level of high-density lipoproteins (36.6%-65%) in the treated group compared to the untreated group with a minimum 3-week intervention duration ( P < 0.05). This systematic review demonstrated that SE exhibits hypolipidaemic effects compared to a placebo. SE has almost the same ability to reduce cholesterol levels as the standard therapy., Competing Interests: Conflict of Interest None., (© Penerbit Universiti Sains Malaysia, 2022.)
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- 2022
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49. Obesity and its associated factors among older adults: MyHEBAT ( M ala y sian HE alth and Well- B eing A ssessmen T ) study.
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Kyaw TM, Ismail Z, Selamat MI, and Nawawi H
- Abstract
Background: Despite being a preventable disease, the prevalence of obesity is rising progressively worldwide. However, the prevalence of obesity and its associated factors among older adults remains unclear in Malaysia. The aim of this study was to determine the prevalence of obesity and its associated factors among older adults who voluntarily attended the health screening programs, which were part of the Malaysian HEalth and Well-Being AssessmenT (My-HEBAT) Study., Methods: Cross-sectional study was conducted among Malaysian adults, aged ≥60 years. A standardized self-administered questionnaire was used to gather information regarding socio-demographic status, personal, family and medical history. Anthropometric indices, blood pressure and physical examinations were conducted on site. Venous blood samples were collected for lipid profile and blood glucose analysis. Participants with BMI of ≥30 kg/m
2 or < 30kg/m2 were classified as obese or non-obese respectively. Age was categorized into three subgroups: 60-69, 70-79, and ≥80 years old. The factors associated with obesity among older adults were then identified using multiple logistic regression., Results: A total of 716 older adults aged ≥60 years (mean ± SD: 66.6 ± 6.0 years) were recruited. The prevalence of obesity among older adults was 15.8%, while higher prevalence was found among females (42.9%) compared to males (38.3%). The prevalence of obesity decreased with increasing age (48.5% in 60-69 years, 20.8% in 70-79 years, and 11.8% in ≥80 years)., Conclusion: The prevalence of obesity among Malaysian population is higher than that of worldwide prevalence. Current national health promotion and educational programs should focus on identifying factors associated with obesity, and promotion of healthy lifestyle with obesity should be improved and modified, particularly for older adults in Malaysia., Competing Interests: The authors declare no conflict of interest., (© 2022 The Authors. Health Science Reports published by Wiley Periodicals LLC.)- Published
- 2022
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50. Identification of cardiovascular risk factors among urban and rural Malaysian youths.
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Mohd Nor NS, Chua YA, Abdul Razak S, Ismail Z, and Nawawi H
- Subjects
- Adolescent, Adult, Cholesterol, LDL, Heart Disease Risk Factors, Humans, Longitudinal Studies, Male, Obesity diagnosis, Obesity epidemiology, Overweight, Prevalence, Risk Factors, Rural Population, Triglycerides, Urban Population, Young Adult, Cardiovascular Diseases diagnosis, Cardiovascular Diseases epidemiology, Coronary Artery Disease, Hypercholesterolemia epidemiology, Hyperlipidemias
- Abstract
Background: Coronary artery disease (CAD) is one of the major causes of morbidity and mortality worldwide. Early identification of the cardiovascular risk factors (CRF) among youths assists in determining the high-risk group to develop CAD in later life. In view of the modernised lifestyle, both urban and rural residing youths are thought to be equally exposed to various CRF. This study aimed to describe the common CRF including obesity, dyslipidaemia, hypertension, smoking and family history of hypercholesterolaemia and premature CAD in youths residing in urban and rural areas in Malaysia., Methods: We recruited 942 Malaysian subjects aged 15-24 years old [(males = 257, and urban = 555 vs. rural = 387, (mean age ± SD = 20.5 ± 2.1 years)] from the community health screening programmes organised in both rural and urban regions throughout Malaysia. Medical history and standardised anthropometric measurements were recorded. Laboratory investigations were obtained for fasting serum lipid profiles and plasma glucose levels., Results: A total of 43.7% from the total study population was either obese or overweight. Youths in the rural were more overweight and obese (49.4% vs. 42.7%, p < 0.044) and have higher family history of hypercholesterolaemia (16.3% vs. 11.3%, p < 0.036) than youths in the urban areas. Low-density lipoprotein (LDL-c) (2.8 vs. 2.7 mmol/L) and total cholesterol (TC) (4.7 vs. 4.5 mmol/L) were significantly higher in urban compared to rural youths (p < 0.019 and p < 0.012). Overall, more youth in this study has CRF rather than not (Has ≥ 1 CRF = 69.9%). Significantly more rural youths have at least one CRF compared to urban youths (rural = 74.2% vs. urban = 66.8%, p = 0.016)., Conclusion: In conclusion, our study showed that a large number of youths had at least one or more CRF. Rural youths have significantly higher BMI with higher family history of hypercholesterolaemia compared to urban youths. However, urban youths have higher LDL-c and TC levels. Other coronary risk factors are not significantly different between urban and rural youths. Rural youths have more CRF compared to urban youths. A larger longitudinal study focusing on this population is important to better understand the effect of the area of residence on CRF in youth., (© 2022. The Author(s).)
- Published
- 2022
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