Displaying publications 1 - 20 of 83 in total

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  1. Ismail R, Teh LK, Amir J, Alwi Z, Lopez CG
    J Clin Pharm Ther, 2003 Aug;28(4):279-84.
    PMID: 12911679
    Although Malaysian Chinese share an origin with the mainland Chinese, their evolution has been influenced by intermarriages. With a gene such as CYP2D6, which is highly polymorphic, it is expected that the Malaysian Chinese would exhibit a polymorphism profile different from those of the Chinese populations in other geographical locations.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  2. Loh KY
    Int J Palliat Nurs, 2004 Nov;10(11):550-1; discussion 552-3.
    PMID: 15580111
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology*
  3. Wong ML, Sandham A, Ang PK, Wong DC, Tan WC, Huggare J
    Eur J Orthod, 2005 Feb;27(1):91-7.
    PMID: 15743868
    The aim of this study was to measure craniofacial morphology and nasal respiratory resistance (NRR) in Malay, Indian and Chinese subjects with obstructive sleep apnoea (OSA). The sample consisted of 34 male subjects, 27-52 years of age (Malay n = 11, which included five mild and six moderate-severe OSA; Indian n = 11, which included six mild and five moderate-severe OSA; and Chinese n = 12, which included six mild and six moderate-severe OSA) diagnosed using overnight polysomnography. After use of a decongestant, NRR was recorded using anterior and posterior rhinomanometry. Standardized lateral cephalometric radiographs were used to record linear and angular dimensions. Malay subjects with moderate-severe OSA had a shorter maxillary (sp-pm) and mandibular (gn-go) length when compared with a mild OSA reference sample (P < 0.05). The hyoid bone was located more caudally in the Chinese moderate-severe subjects (hy-NL, hy-ML)(P < 0.05), and may be a useful diagnostic indicator for severity in this racial group. No pattern of differences for NRR was seen between the moderate-severe and mild OSA subjects. The consistently lower values for nasopharyngeal resistance in all the moderate-severe subjects when compared with the mild group may indicate that some compensation at this level of the airway had taken place. Strong positive correlations between craniocervical angulation (NL/OPT) and total airway resistance and the turbulent component of flow (k(2)) suggest that head posture is sensitive to fluctuations in airway resistance (P < 0.01).
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology*
  4. Mahadeva S, Raman MC, Ford AC, Follows M, Axon AT, Goh KL, et al.
    Aliment Pharmacol Ther, 2005 Jun 15;21(12):1483-90.
    PMID: 15948816
    There is a paucity of data directly comparing dyspepsia in Western and Eastern populations.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology*
  5. Lal S, Madhavan M, Heng CK
    Ann. Hum. Genet., 2005 Nov;69(Pt 6):639-44.
    PMID: 16266403
    Mitochondria are eukaryotic cytoplasmic organelles responsible for oxidative phosphorylation. The C to A nucleotide transversion in the NADH dehydrogenase subunit 2 (MT-ND2) coding region of mitochondrial DNA has been reported to be associated with plasma lipid levels, adult onset diseases and longevity. We have examined the role of this polymorphism in relation to plasma lipid levels and age in a total of 713 healthy individuals belonging to 3 ethnic groups in Singapore. The frequency of the A allele was significantly higher (p < 0.05) among the Chinese (0.15) in comparison to the Malays (0.05) and Indians (0.02). No significant difference in the frequency of the allele was observed between healthy and coronary artery disease subjects, and between age-stratified subjects. We found that the polymorphism is significantly associated in an ethnic- and gender-specific manner with plasma apoB levels in the Chinese males (p < 0.05). This is the first epidemiological report of the mt5178 C > A polymorphism and its association with plasma lipid levels in Asian populations outside Japan.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  6. Verma S, Poon LY, Subramaniam M, Chong SA
    Int J Soc Psychiatry, 2005 Dec;51(4):365-71.
    PMID: 16400911
    The aims of this study were to examine the prevalence and severity of aggression in patients with first-episode psychosis and to identify the association between aggression and sociodemographic and clinical factors.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  7. Shen H, Qi L, Tai ES, Chew SK, Tan CE, Ordovas JM
    Obesity (Silver Spring), 2006 Apr;14(4):656-61.
    PMID: 16741267
    A polymorphism in the promoter region of uncoupling protein 2 gene -866G/A has been associated with its expression levels in adipose tissue, the risk of obesity, and metabolic abnormalities. Our purpose was to examine the associations of -866G/A with body fat and the risk of metabolic syndrome in a random sample of 4018 Asians (1858 men and 2160 women) from three ethnic groups (Chinese, Malay, and Indian). The minor allele frequency of -866G/A polymorphism in South Asians was similar to that in whites. After adjustment for covariates including age, cigarette smoking, and physical activity, the -866A/A genotype was associated with higher waist-to-hip ratio as compared with the wild-type genotype in Chinese and Indian men (p = 0.018 and p = 0.046, respectively). Moreover, Indian men with -866A/A genotype had a significantly increased risk of metabolic syndrome as compared with those homozygous for the wild-type (odds ratio, 2.66; 95% confidence interval, 1.21 to 5.88; p = 0.015). Such a risk was mainly caused by the excess presence of hypertriglyceridemia and central obesity. Our findings indicate that the uncoupling protein 2 gene -866G/A polymorphism may increase the risks of central obesity and metabolic syndrome, with greater effects on Asian men.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  8. Han GS, Davies C
    Ethn Health, 2006 Nov;11(4):409-30.
    PMID: 17060035 DOI: 10.1080/13557850600824054
    This paper investigates the use and provision of biomedicine among Korean-Australian men on the basis of interview data from all of the eight Korean-speaking doctors practising in the Korean community in Sydney in 1995. From the viewpoint of these general practitioners, an analysis is made of the processes Korean men go through in adjusting to a new country, being involved in constant hard manual work and long working hours, and explores how they make use of all available resources to stay healthy. The Korean men have fully utilized the 'freely' available medical services under government-subsidized Medicare, bearing in mind that health is a capacity to work under the current environment, although illegal migrants restrained themselves from using it until they obtained legal status. Korean-speaking medical practitioners have been able to provide their fellow Koreans with 'culturally appropriate' health care, with the key factor being the absence of a language barrier. The level of patient satisfaction is high, possibly due to the excellent understanding the doctors have of the social aspects of illnesses, although the doctors do not go beyond curative medicine in their practice. However, the increasing number of Korean-speaking doctors in the small Korean community means that there is competition for patients. Consequently, the medical care is highly entrepreneurial. Referral by Korean doctors to practitioners of Korean herbal medicine is also a notable feature of the health care sector of the Korean community, especially as this offers Korean patients 'satisfactory' health relief for problems that are not easily relieved by doctors in the biomedical system.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology*
  9. Lim KL, Fam HB
    J Cataract Refract Surg, 2006 Nov;32(11):1814-9.
    PMID: 17081863
    To determine the values for the anterior best-fit sphere (BFS) and posterior BFS in an Asian population using the Orbscan II (Bausch & Lomb) slit-scanning Placido disk corneal topographer.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology*
  10. Wan Muhaizan WM, Ahmad PK, Phang KS, Arni T
    Malays J Pathol, 2006 Dec;28(2):93-9.
    PMID: 18376798 MyJurnal
    This study was carried out to determine the role of p53 and p21 in the pathogenesis of prostatic adenocarcinoma and their association with tumour grade.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  11. Teh LK, Lee WL, Amir J, Salleh MZ, Ismail R
    J Clin Pharm Ther, 2007 Jun;32(3):313-9.
    PMID: 17489883
    P-glycoprotein (PgP) is the most extensively studied ATP-binding cassette (ABC) coded by MDR1 gene. To date, 29 single nucleotide polymorphisms (SNPs) have been identified; but only SNP C3435T has been correlated with intestinal PgP expression levels and shown to influence the absorption of orally taken drugs that are PgP substrates. Individuals homozygous for the T allele have more than fourfold lower PgP expression compared with C/C individuals. We developed a one step primer based allele specific PCR method to detect SNP at C3435T to investigate the distribution of this genotype in the local population.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  12. Lee LK, Tan EL, Gopala K, Sam CK
    Singapore Med J, 2007 Jul;48(7):632-4.
    PMID: 17609824
    Nasopharyngeal carcinoma (NPC) is the second most common cancer among Malaysian Chinese males. We determined the frequencies of 17 human leukocyte antigens (HLA), HLA-A and HLA-B, alleles in 88 Malaysian Chinese with NPC.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  13. Han GS, Ballis H
    PMID: 17201916 DOI: 10.1186/1746-4269-3-1
    Viewed through the micro focus of an interpretive lens, medical anthropology remains mystified because interpretivist explanations seriously downplay the given context in which individual health seeking-behaviours occur. This paper draws upon both the interpretivist and political economy perspectives to reflect on the ethno medical practices within the Korean-Australian community in Sydney.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology*
  14. Thai AC, Mohan V, Khalid BA, Cockram CS, Pan CY, Zimmet P, et al.
    Diabetes Res Clin Pract, 2008 May;80(2):224-30.
    PMID: 18207602 DOI: 10.1016/j.diabres.2007.12.003
    In this paper, the islet autoimmunity status and relation to clinical characteristics, beta cell function and cardio-metabolic risk factors in young-onset Asian diabetic patients are evaluated at baseline. The study population consisted of 912 patients (from China, India, Malaysia and Singapore) with age 12-40 years and diabetes duration <12 months. Autoantibodies to glutamic acid decarboxylase (GADA) and tyrosine phosphatase (IA-2A), beta cell function and cardio-metabolic risk parameters were assessed. Among our young patient cohort, 105 (11.5%) patients were GADA and/or IA-2A positives (Ab +ve). Ab +ve patients were younger, leaner, had more severe hyperglycaemia and lower beta cell function. The frequency of metabolic syndrome was significantly lower in Ab +ve patients (27%) compared to Ab -ve patients (54%). However, a substantial proportion of patients in both groups of patients had atherogenic dyslipidaemia, hypertension and albuminuria (micro or macro). In our study cohort, only one in 10 Asian youth with new-onset diabetes had evidence of islet autoimmunity. At least 60% of Ab +ve and 50% of Ab -ve patients demonstrated classical features of type 1 and type 2 diabetes respectively. Regardless of autoimmunity status, the cardio-metabolic risk factors, in particular atherogenic dyslipidaemia, hypertension and albuminuria were common in our patients with young-onset diabetes.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  15. Hilmi I, Singh R, Ganesananthan S, Yatim I, Radzi M, Chua AB, et al.
    J Dig Dis, 2009 Feb;10(1):15-20.
    PMID: 19236542 DOI: 10.1111/j.1751-2980.2008.00357.x
    To establish the clinical course of ulcerative colitis (UC) in the Malaysian population, comparing the three major ethnic groups: Malay, Chinese and Indian.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  16. Chia SE, Mohamed Ali S, Yap PH, Gan L, Ong YB, Chia KS
    Neurotoxicology, 2009 Mar;30(2):214-9.
    PMID: 19135476 DOI: 10.1016/j.neuro.2008.12.004
    Organophosphate (OP)-containing pesticides are widely used worldwide for domestic and industrial purposes. Studies on acute and chronic exposure to OPs have revealed numerous health effects attributed mainly to acetylcholinesterase (AChE) inhibition. The enzyme human serum paraoxonase (PON1) is involved in the detoxification of OP compounds. PON1 polymorphisms have been shown to affect susceptibility to OP exposure. We studied the effect of OP exposure on pest control workers and assessed the distribution of two common PON1 polymorphisms in our local population. The exposed group consisted of 103 workers from various pest control companies under the Singapore Pest Management Association while the 91 unexposed workers were from a lead stabilizer factory. For all workers, the mean age was 36.9 (20-70) years and the ethnic distribution was 38.1% Chinese, 44.3% Malay and 17.5% Indian. The mean+/-S.D. exposure duration among the pesticide workers was 10.4+/-8.4 years. The mean+/-S.D. RBC cholinesterase level was 18436.2+/-2078U/L and 18079.6+/-1576U/L for the exposed and unexposed groups, respectively (p=0.216). The mean+/-S.D. serum pseudocholinesterase was 11028.4+/-2867.4U/L and 9433.6+/-2022.6U/L in the exposed and unexposed groups, respectively (p<0.0001). Mean paraoxonase activity was similar among Chinese and Malays (266.5 and 266.3U/L, respectively) whereas that of the Indians was significantly lower (165.6U/L). Our study showed that cholinesterase levels among the exposed were not lower than those in the unexposed group. PON1 polymorphisms differed among ethnic groups, implying that ethnicity could be an important surrogate for identifying susceptible groups in case of OP exposure. Although OP poisoning is rare among occupationally exposed workers in Singapore, this information is useful for other developing countries that have large populations of Chinese, Malays and Indians where OP exposure could be very high especially in agricultural settings.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  17. Soh KC, Kua EH, Ng TP
    Int J Geriatr Psychiatry, 2009 Jul;24(7):723-30.
    PMID: 19089846 DOI: 10.1002/gps.2188
    Somatic and other non-affective symptomatology characterizes late life depression and contributes to its under-diagnosis, especially in some ethnic groups.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  18. Lim KL, Fam HB
    J Cataract Refract Surg, 2009 Dec;35(12):2144-8.
    PMID: 19969221 DOI: 10.1016/j.jcrs.2009.06.031
    PURPOSE: To determine the distribution of higher-order corneal and ocular aberrations in a healthy refractive surgery population.
    SETTING: Island Hospital, Penang, Malaysia.
    METHODS: In this prospective observational study, 1 eye of ethnic Chinese refractive surgery patients was evaluated with an Orbscan II corneal topographer and a Zywave Hartmann-Shack aberrometer with a 6.0 mm pupil. Height data were analyzed to derive the higher-order aberrations (HOAs) from the 3rd to 5th Zernike order.
    RESULTS: The mean spherical equivalent in the 70 eyes evaluated was -6.46 diopters +/- 3.10 (SD). The mean total corneal HOA was 0.574 +/- 0.218 microm (range 0.269 to 1.249 microm) and the mean total ocular HOA, 0.525 +/- 0.354 microm (range 0.138 to 2.145 microm). There was no statistically significant correlation with age. The mean 3rd-order ocular aberration was 0.399 +/- 0.287 microm; the mean 4th-order, 0.297 +/- 0.223 microm; and the mean 5th-order, 0.108 +/- 0.101 microm. Corneal spherical aberration was greater than ocular spherical aberration (mean 0.312 +/- 0.114 microm versus 0.200 +/- 0.170 microm). Multilinear regression showed that the only dependent that predicted ocular spherical aberration was anterior corneal asphericity (r(2) = 0.227, F = 17.95, PAsian Chinese eyes were significantly greater than that reported in other populations. Population differences in wavefront errors were significant, and this should be noted in patient management.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology*
  19. Blackburn K
    Oral Hist Rev, 2009;36(2):231-52.
    PMID: 19999634
    The Pacific War and the Japanese Occupation were traumatic periods in the lives of people now over seventy years old in Malaysia and Singapore. This study traces why individuals interviewed for oral history of the Pacific War and the Japanese Occupation have often been able to tell stories of trauma without being overwhelmed by their reminiscences. It emphasizes that memories of traumatic experiences of the Pacific War and the Japanese Occupation in Malaysia and Singapore are mediated and eased by supportive social networks that are part of the interview subject's community. The individual's personal memories of traumatic war experiences are positioned in the context of the collective memory of the group and, thus, are made easier to recall. However, for individuals whose personal memories are at variance with the collective memory of the group they belong to, recalling traumatic experiences is more difficult and alienating as they do not have the support in their community. The act of recalling traumatic memories in the context of the collective memory of a group is particularly relevant in Malaysia and Singapore. These countries have a long history of being plural societies, where although the major ethnic groups -- the Malays, Chinese, and Indians -- have lived side by side peacefully, they have lived in culturally and socially separate worlds, not interacting much with the other groups. The self -- identity of many older people who lived through the Pacific War and the Japanese Occupation is inextricably bound up with their ethnicity. Oral history on war trauma strongly reflects these identities.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
  20. Khan TM, Sulaiman SA, Hassali MA, Anwar M, Wasif G, Khan AH
    Community Ment Health J, 2010 Feb;46(1):87-92.
    PMID: 20146000 DOI: 10.1007/s10597-009-9262-z
    This study was intended to evaluate the mental health literacy vis-à-vis depression among inhabitants of Penang state in North Malaysia. Using a clustered random sampling method, 1,855 respondents were approached to participate in the survey. A total of 1,149 respondents actually participated, for a 61.9% response rate. Face to face interviews were then conducted using a pre-validated 21-item questionnaire. The mean age of the respondents was 30 years (SD +/-11.5). The majority (n = 884; 76.9%) could recognize three or more symptoms of depression. Chinese and/or female respondents performed the best in this domain. Respondents with a personal experience of depression displayed a significantly better knowledge of symptoms of and therapies for depression than those who did not (t = -35.745, P = <0.001). Overall, a moderate knowledge level of the symptoms of depression and a cursory knowledge towards therapy were observed among the general population in Penang. Notably, respondents were generally inclined towards the use of alternative medicine. The study suggests that strong beliefs in alternative and traditional medicines could undermine the respondents' willingness and ability to seek evidence-based mental health care.
    Matched MeSH terms: Asian Continental Ancestry Group/ethnology
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