Molecular characterization and prenatal diagnosis for beta-thalassemia can be carried out using the Amplification Refractory Mutation System (ARMS). The ARMS is a rapid and direct molecular technique in which beta-thalassemia mutations are visualized immediately after DNA amplification by gel electrophoresis. In the University of Malaya Medical Center, molecular characterization and prenatal diagnosis for beta-thalassemia is carried out using ARMS for about 96% of the Chinese and 84.6% of the Malay patients. The remaining 4% and 15.4% of the uncharacterized mutations in the Chinese and Malay patients respectively are detected using DNA sequencing. DNA sequencing is an accurate technique but it is more time-consuming and expensive compared with the ARMS. The ARMS for the rare Chinese beta-mutations at position -29 (A-->G) and the ATG-->AGG base substitution at the initiator codon for translation in the beta-gene was developed. In the Malays, ARMS was optimized for the beta-mutations at codon 8/9 (+G), Cap (+1) (A-->C) and the AATAAA-->AATAGA base substitution in the polyadenylation region of the beta-gene. The ARMS protocols were developed by optimization of the parameters for DNA amplification to ensure sensitivity, specificity and reproducibility. ARMS primers (sequences and concentration), magnesium chloride concentration, Taq DNA polymerase and PCR cycling parameters were optimized for the specific amplification of each rare beta-thalassemia mutation. The newly-developed ARMS for the 5 rare beta-thalassemia mutations in the Chinese and Malays in Malaysia will allow for more rapid and cost-effective molecular characterization and prenatal diagnosis for beta-thalassemia in Malaysia.
OBJECTIVES: To evaluate the trends of disease-modifying anti-rheumatic drugs (DMARDs) used in the treatment of rheumatoid arthritis (RA).
METHODS: Patients who fulfilled the ACR criteria for RA from 1995 to 2006 and who attended the Rheumatology clinic at Ipoh Hospital were selected and their records were evaluated to determine the changing trends in the use of DMARDs.
RESULTS: 128 patients with RA were identified. The most commonly prescribed DMARD as monotherapy was sulphasalazine (47.7%), followed by methotrexate (35.9%) and hydroxychloroquine. Methotrexate and sulphasalazine were the most frequently prescribed DMARDs, of which the use of methotrexate has increased 6 folds from 1997 to 2007 and the use of sulphasalazine remains around 30% to 50%. The combination of methotrexate with leflunomide has significantly increased in usage by 4 folds during the study period whilst methotrexate with sulphasalazine combination usage had slightly declined.
CONCLUSION: DMARDs are still the cornerstone in the treatment of RA. Changes in the trend and aggressive use of DMARDs has been markedly influenced by the patient's awareness of early treatment, the incapacitating damage, availability of recently introduced leflunomide and the advancement of current recommended treatment protocol.
Study site: Rheumatology clinic, Hospital Raja, Parmaisuri Bainum (HRBP), Ipoh, Perak, Malaysia
(1) The use of the thiochrome method for the estimation of thiamine in human milk is discussed, with special reference to the possible production of an artefact, following the incubation of the milk with pepsin, in addition to the use of takadiastase (clarase). No evidence could be found to suggest that an artefact resembling thiamine was produced by the method of analysis described.
(2) The thiamine content of 91 samples of full lactation human milk from apparently "normal" Malay, Chinese and Indian women in Malaya is recorded. The mean milk thiamine level of 11.3 ug/100 ml. found is considerably lower than the levels recorded for milk samples from apparently "normal " women in the United Kingdom and the U.S.A.; and slightly lower than that recorded in Australia. The results suggest that the dietary
intake of thiamine in Malaya is inadequate to maintain optimum thiamine levels in the milk of lactating women.
(3) No significant difference was found in the mean thiamine content of milk from women of the three principal racial groups in Malaya ; nor was any significant difference found to be associated with the parity or age of the women or, in the case of full lactation milks, with the time after parturition at which the sample was collected. No significant difference was found in samples collected from the same woman at different times of the day or before and after a main meal.
(4) Marked differences were found in the thiamine content of samples of milk from individual women, and the possible reasons for this are discussed.
(5) The examfnation of 48 samples of milk collected during the first month after parturition confirmed previous recorded observations that the thiamine content of such milks, initially low, gradually increases to reach "normal" levels towards the end of the first month of lactation.
Objective: To determine the epidemiological, clinical and laboratory features of the patients with gout, on follow up in Rheumatology Outpatient Clinic, Hospital Seremban.
Methods: This was a retrospective study. Case notes of all our existing gout patients were reviewed, and data on demography, clinical features, associated conditions, and laboratory findings were noted.
Results: 54 patients were studied, 48 (89%) were male and 6 (11%) were female at the ratio of M : F = 8:1, 30 (57%) of them had the onset of symptoms at their 3rd and 4th decades of life. The majority were the Malays 39 (72%), followed by the Indians 11 (20%) and the Chinese 4 (8%). Commonly associated conditions were hypertension in 37 (68.5%), obesity (BMI of 30 and above) in 36 (66.7%) and hyperlipidaemia in 36 (66.7%) of them. Mixed hyperlipidaemia (High TG and LDL cholesterol) were found in 19 (53%). Underlying history of diabetes mellitus 7 (13%), alcohol consumption 8 (15%), smoking habits 22 (40%) and family history of gout 18 (33%). Half of our patients 27 (50%) had at least 2 or more joints involvement. 28 (52%) of them had tophaceous gout. Among those with tophaceous gout, 18 (64%) had renal impairment with serum creatinine of .150mmol/l. 6 (31.5%) of the patients with renal impairment found to have renal calculi on ultrasonography.
Conclusion: There was male predominance in our group of patients which was consistent with other reported epidemiological studies. Hypertension, mixed hyperlipidaemia and obesity were common associated conditions while diabetes mellitus, smoking and family history of gout were not. The majority of gout patients in our clinic were Malays and due to religious reasons, alcohol was not a common associated factor. Half of our patients had multiple joints involvement and more than half also had tophaceous gout. There was high incidence of renal impairment seen in patients with tophaceous gout. These could be due to delay in seeking medical treatment, present of renal calculi and possibly contributed by associated hypertension and diabetes mellitus.
Achieving treatment targets has been difficult in treating diabetic patients. This cross-sectional study describes the lipid profiles of patients with diabetes mellitus at a public primary health care centre in Sarawak, Malaysia. The targets for lipid control were based on the International Diabetes Federation recommendation (2002). 1031 patients (98% Type 2 Diabetes) were studied. Fasting lipid profiles were available in 990 (96%) patients. The mean total cholesterol was 5.3 +/- 1.0 mmol/L, Triglycerides 1.90 +/- 1.26 mmol/L, HDL-C 1.28 +/- 0.33 mmol/L and LDL-C 3.2 +/- 0.9 mmol/L. Overall, 22% of patients achieved the treatment target for LDL-C level < 2.6mmol/L. 67% of patients had HDL-C > 1.1 mmol/L and 42% of patients had a target TG level below 1.5 mmol/L. Of the 40% of patients who received lipid-lowering drug, 17% achieved LDL-C target, 50% had LDL-C 2.6-4.4 mmol/ L and 33% have LDL-C > 4.0 mmol/L. For the remaining 60% not receiving any lipid lowering therapy, 68% had LDL-C between 2.6-4.0 mmol/L and 7% had LDL-C level > 4 mmol/L. Dyslipidemia is still under-treated despite the availability of effective pharmacological agents and the greatly increased risk of cardiovascular diseases in diabetic patients.
The aim of the study was to determine the spectrum of clinical ocular involvement in patients with inactive systemic lupus erythematosus (SLE) who have no ocular symptoms. Patients with a diagnosis of SLE based on the 1982 revised American College of Rheumatology criteria and with no ocular complaints were recruited from the SLE clinic. Clinical data regarding their systemic disease and disease activity were recorded and a full ophthalmic examination carried out. 52 patients of mixed ethnicity comprising of 75% Chinese, 19% Malays and 6% Indian patients were recruited. Of these, 51 (98%) were female with a mean age of 34+/-11 (range 16-74 y). 16 (31%) patients had dry eyes while corticosteroid induced glaucoma and cataract was detected in 1 (2%) and 7 (14%) patients, respectively. No patients were found to have sight-threatening ocular conditions such as cotton wool spots, vasculitis, optic neuropathy or uveitis. Patients with clinically inactive disease were found not to have sight-threatening ocular diseases that are known to be associated with SLE. Although they have no ocular complaints, nearly one-third of these patients have dry eyes. Ocular examination may be unnecessary when the disease is clinically inactive and in the absence of ocular symptoms.
Study site: SLE clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
We analysed clinical and histological diagnoses in patients admitted with liver-related illnesses in order to determine the spectrum ofliver disease in our community. In a total of 380 such patients, liver disease was sixfold more frequent in males than in females. Admissions for cirrhosis were more common amongst the Indian ethnic group. Indians constituted 39% of the admissions (expected 11. 7%), Chinese 37% (expected 51%) and Malays 21% (expected 36%) (~2 = 293, p = H 0.001). Liver histology from 179 of the patients was reviewed blind by one pathologist. Based on the histological findings, the pre-biopsy diagnosis was 'wrongin 75%of cases. The age standardized incidence rate of hepatocellular carcinoma was 22/100,000/year in males 225 and 5/100,000/year in females. However, the peak age of onset was in the seventh decade and the age specific incidence in males aged 60 years or older was 93/100,000/year. The ethnic group representation of patients with hepatocellular carcinoma did notshow a racial preponderance. This study highlights a public health problem related to acute viral hepatitis and alcohol abuse. It also confirms a high incidence of hepatocellular carcinoma
The chance of excluding from paternity a falsely accused Chinese man and a falsely accused Malay man by using a number of blood genetic marker systems have been calculated using the ABO, Rhesus and MNSs systems, the combined chances are. 46.4% for a Chinese and 50.2% for a MaIay. When serum protein and red cell enzyme systems are included, the chances increase to approximately 76%. The chances may be increased by testing for haemoglobin variants, by red cell typing for the Diego (Di^a)
antigen, and by testing for phenotypes other than Gm(a) in the Gm system. The Kell system may in some circumstances provide evidence in favour of paternity.
A prospective randomised controlled study was conducted over a 6 month period on the value of administering prophylactic antibiotics in patients undergoing emergency caesarean section at the Ipoh General Hospital. A total of 222 patients were randomised to receive 24 hours of ampicillin (500 mg per dose), cefoperazone (1 gm per dose) or no antibiotics. In all parameters of patient morbidity, the group receiving cefoperazone showed significantly better results as compared to the group not receiving antibiotics. The ampicillin group also had favourable results but generally not achieving statistical significance. Prophylactic antibiotics appear to be beneficial and consideration should be given to make it a routine in all emergency caesarean sections.
Past research indicates that socioeconomic status (SES) accounts for differences in sensitivity across ethnic groups. However, comparatively little work has been conducted in Asia, with none examining whether ethnicity moderates the relation between SES and sensitivity. We assessed parenting behavior in 293 Singaporean citizen mothers of 6-month olds (153 Chinese, 108 Malay, 32 Indian) via the Maternal Behavioral Q-Sort for video interactions. When entered into the same model, SES (F(1,288) = 17.777, p
This study tested the hypotheses that ambulatory heart rate and blood pressure would be higher for individuals high but not low in hostility when they experienced negative affect or social stress and that this interaction would be stronger for Indians compared with other Singapore ethnic groups. Ambulatory blood pressure monitoring was done on 108 male Singapore patrol officers as they went about their daily duties. After each BP measurement participants completed a computerized questionnaire including items on emotional experience. Individuals high in hostility showed higher systolic blood pressure when reporting negative affect whereas this was not true for those low in hostility. Ethnic differences were obtained such that Indians showed an increase in mean arterial pressure when angered whereas MAP was negatively related to anger for Malays and unrelated for Chinese. Also a three-way interaction between ethnicity, hostility, and social stress indicated that hostility and social stress interacted in their effects on DBP for Indian participants but not for Chinese or Malays. Finally, a three-way interaction was obtained between ethnicity, hostility and negative affect for heart rate in which heart rate increased with increasing levels of negative affect for Chinese high in hostility and Malays low in hostility but decreased with increasing negative affect for all other participants. These data are consistent with higher CHD rates among individuals high in hostility and also provide additional evidence on ethnic differences in cardiovascular reactivity in Singapore.
To investigate the role of geography (place of residence) as a moderator in the relationship between dental caries disease and treatment experience and dental fear in 16-year-olds living in Malaysia.
BACKGROUND: Overweight and obesity rates among adolescents have increased substantially over the years. This study aimed to determine the body mass index (BMI) of students and parents and the relationship among media use, BMI, socio-demographic profiles, and snacking behaviour during television watching of secondary school students in Kuching South City.
METHODS: In accordance with the two-stage sampling method, a total of 316 adolescents aged 13-17 years from 7 secondary schools participated. Data were collected using questionnaire and anthropometric measurement. Independent t test, one-way ANOVA, Mann-Whitney U test, and chi-square test were performed.
RESULTS: The mean BMI was 20.56 kg/m(2) (SD 4.33) for boys and 20.15 kg/m(2) (SD 3.91) for girls. No significant difference in terms of z score for BMI-for-age or socio-demographic factors was found. The mean duration of time devoted to media use was 4.69 hours (SD 2.93) on weekdays and 5.69 hours (SD 2.87) on weekends. Boys were found to spend more hours on media use than did the girls (t = 4.293, P < 0.01). Respondents were reported to consume more cereal compared with soft drinks and junk foods. Respondents whose fathers worked in the private sector devoted the fewest hours to media use, whereas those with self-employed fathers devoted the most time to media use. Respondents with mothers who were employed spent more time on media use than did respondents whose mothers were housewives (F = 4.067, P < 0.01). No significant difference was found between BMI and media time or snacking habits.
CONCLUSION: This finding indicated that media time has no effect on body weight, because respondents were found to have normal weight and to consume less unhealthy food.
KEYWORDS: adolescent; behaviour; body mass index; public health; urban population
OBJECTIVES: To determine the prevalence of tongue lesions in Malaysian dental outpatients from the Klang Valley area.
SUBJECTS AND METHODS: A cross sectional study was conducted on 600 Malaysian outpatients (257 men, 343 women, mean age, 37.7 years) attending the Primary Dental Care Unit at the Faculty of Dentistry, University of Malaya. Demographic and medical data were recorded for all respondents.
RESULTS: One hundred eighty-one patients (30.2%) (81 men, 100 women, mean age 42.0 years) were diagnosed with at least one tongue lesion (n = 207) at the time of examination. Of these, 24 patients (4%) had two or more tongue lesions present synchronously. Seven different lesions were diagnosed: fissured tongue (13.8%), crenated tongue (7.8%), pigmented tongue (6.2%), geographic tongue (2.2%), ankyloglossia (1.7%), hairy tongue (1.0%) and median rhomboid glossitis (0.2%). Their racial prevalences were Malays (n = 65, 10.8%), Indians (n = 62, 10.3%), Chinese (n = 53, 8.8%) and other race (n = 1, 0.2%). A significant relationship was observed between crenated tongue and race; between four types of tongue lesions (fissured tongue, geographic tongue, crenated tongue and pigmented tongue) and age; and between fissured tongue and gender (P
Questionnaires (4000) on experience of menopausal symptoms in Singaporean women aged 40-55 were distributed by students. In total, 524 envelopes were returned (13.1%) and of these 420 were analyzed. Of these, 366 were classified as either pre-, peri- or postmenopausal on the basis of their menstrual patterns. Menopausal symptoms in this sample of Singaporean women were, in general, similar to those experienced in the West though the prevalence was low compared to European studies. No significant differences in individual symptoms were found between the 3 groups but, taken together, symptoms were significantly highest in the perimenopausal and lowest in the other menopausal groups. In the postmenopausal group 50% had been menopausal for at least 1 year at 50.5 years.
AIM: The purpose of this study is to compare the prevalence of rheumatoid factor (RF) isotypes and second generation anti-cyclic citrullinated peptides (anti-CCP) in Malaysian rheumatoid arthritis (RA) patients.
METHODS: In this cross-sectional study, 147 established RA patients from three ethnic groups were recruited from a major rheumatology clinic in Malaysia. Enzyme-linked immunosorbent assays (ELISA) for serum RF isotypes IgA, IgG and IgM as well as second-generation anti-CCP were performed and the prevalence of each auto-antibody was compared in the three ethnic groups.
RESULTS: The anti-CCP was the most prevalent auto-antibody in each of the ethnic groups, followed closely by RF IgM and RF IgG. Rheumatoid factor IgA was the least prevalent across all three ethnic groups. The anti-CCP-RF IgM combination provided the best test sensitivity. Seroprevalence of anti-CCP was strongly associated with the presence of each of the RF isotypes. The seroprevalence of RF and anti-CCP did not increase or decrease with advancing age, age at onset and disease duration.
CONCLUSION: When used alone, anti-CCP provides a diagnostic advantage over RF IgM on the basis of test sensitivity. Considering the high cost of the anti-CCP assay, step-wise serum testing with IgM RF followed by anti-CCP may provide a more economically sensible option to optimize test sensitivity for RA.
Study site: Rheumatology clinic, Hospital Tuanku Jaafar, Seremban, Negeri Sembilan, Malaysia
The aim of this study was to determine the prevalence of functional impairment and its associated factors among patients aged 60 years and above attending Klinik Kesihatan Batu 9 Ulu Langat, Selangor. This is a cross sectional community health clinic based study. A total of 260 elderly patients attending the community health clinic were interviewed. They were clinically assessed for functional impairment by using the 9 item Instrumental Activities of Daily Living (IADL) scale. There were 118 (45.4%) elderly male and 142 (54.6%) elderly female with age ranging from 60 years to 92 years with the mean age of 67.5 and 65.5 years for male and female respectively. Chinese form the largest population (42.3%) followed by Malay (36.5%), Indian (19.2%) and others (2.0%). The overall prevalence of functional impairment among elderly aged 60 years and above in this study was 33.5%. Among the functionally impaired, two patients (0.8%) were totally dependent. There were significant associations between functional impairment and older age (p = 0.025), lower income group (p = 0.010), lower education level (p = 0.030) and history of chronic medical illness (p = 0.020). Functional impairment had no significant association with ethnic group, gender, occupation and living arrangement. For daily activities that were assessed, the commonest impairment was inability to perform shopping (40%) followed by impairment in climbing up staircase (36.6%) and impairment in taking medication (35%). Advanced age, lower income, lower education and history of medical illness are associated with functional impairment. Functional impairment is an important consideration in caring for the elderly patients in the community. These findings have implications in caring of the elderly in which attention need to be paid to activities such as shopping, climbing stairs and taking medication. The use of the IADL scale is feasible for screening of functional impairment among the elderly population in the community.