MyMedR

Longitudinal study on physical growth of primary school children in Malaysia

Chen ST

Med J Malaysia, 1977 Sep;32(1):17-21.

Milk tolerance among malnourished school children in Malaysia

Chen ST, Domala Z

Asia Pac J Public Health, 1989;3(4):274-7.

PMID: 2638907 DOI: 10.1177/101053958900300405

1,256 malnourished children, aged seven to ten years, were selected for study, 575 from Kuala Langat, 416 from Wilayah Persekutuan and 265 from Ulu Selangor. Ninety-three percent of the children were from low socioeconomic groups with large family size, and most of their parents had only primary or no formal education. During the study period, children in Kuala Langat received daily milk supplementation for five days per week, those in Wilayah Persekutuan for two days per week, while those in Ulu Selangor did not receive any milk supplementation. The study shows that a majority of the malnourished primary school children liked to drink milk and that milk intolerance was not a problem among them.

Fulltext Assessment of Preservice Music Teachers' Multicultural Personality: Multicultural Music Education Perspective

Chen S, Wong KY

Front Psychol, 2022;13:726209.

PMID: 35602716 DOI: 10.3389/fpsyg.2022.726209

This study examines preservice music teachers' multicultural personality level and characteristics in the context of multicultural music education in China, focusing on the factors that influence the teachers' multicultural personality traits. We surveyed 433 preservice music teachers who responded via the Multicultural Personality Questionnaire-Short Form survey instrument. The results indicated that the multicultural personality level of preservice music teachers was intermediate, mainly due to a deficiency in the Flexibility and Emotional Stability dimensions, which are necessary for dealing with cultural differences in the face of unknown multicultural conditions. In addition, we also found that the size of a teacher's hometown and the years of studying and teaching are significant factors in shaping preservice music teachers' multicultural personalities. Preservice music teachers whose hometowns are big cities have a higher multicultural personality level than those in rural areas. The more time a preservice music teacher spent studying and teaching, the higher the multicultural personality level. Gender, educational level, and experience playing musical instruments have no statistically significant effect on the multicultural personality of preservice music teachers.

Fulltext Optimum age for measles immunization in Malaysia

Chen ST, Lam SK

Med J Malaysia, 1985 Dec;40(4):281-8.

PMID: 3842727

A study was carried out at the University Hospital, Kuala Lumpur, Malaysia to determine the age-specific prevalence of measles infection by serology and the age specific - seroconversion rates following measles vaccination. The results show that the percentage of children with passively acquired measles antibodies decreased with increasing age fill three to five months of age. From 12 months of age, the percentage of positivity increased sharply due probably to natural infection. The geometric mean antibody titre was low at birth, but from six months it started to increase. These results indicate that measles infection is common in Malaysia and a small number of children began to acquire natural measles infection from six to eight months of age; however the peak age for the acquisition of measles infection was from 12 months to five years of age. Seroconversion rates following vaccination from nine months of age, ranged from 94-99%. However, the rates and the geometric mean titre were higher among those vaccinated at 11 months of age or older compared with those vaccinated at nine or ten months of age. Based on the above results, it is concluded that the optimum age for measles immunization in Malaysia should be 11 months.

Ethnic differences in the Goodenough-Harris draw-a-man and draw-a-woman tests

Dugdale AE, Chen ST

Arch Dis Child, 1979 Nov;54(11):880-5.

PMID: 393181

The draw-a-man (DAM) and draw-a-woman (DAW) tests were given to 307 schoolchildren in Petaling Jaya, Malaysia. The children were ethnically Malay, Chinese, or Indian (Tamil), and all came from lower socioeconomic groups. The standard scores of the Chinese children averaged 118 in the DAM and 112 in the DAW tests. These scores were significantly better than the American standards. Malay children scored significantly lower than Chinese, and Tamil children scored lower again. The nutritional status of the children had no influence on the scores. Chinese and Tamil children scored better in the DAM than the DAW, while in Malay boys the reverse was true. Malay children tended to emphasise clothing in the DAM, but Chinese and Tamil children scored better on items relating to facial features and body proportions. The Goodenough-Harris draw-a-person tests are obviously not culture-free, but the causes of ethnic differences have not been elucidated.

The early immunisation of infants in Malaysia

Chen ST, Choong MM

Med J Malaya, 1971 Sep;26(1):15-9.

PMID: 4258569

Some epidemiological aspects of diphtheria in Malaysia

Chen ST, Puthucheary SD

Trop Geogr Med, 1976 Sep;28(3):211-5.

PMID: 1006789

In Malysia, the proportion of children fully immunized againest diphtheria is generally low (20%). On the other hand, the Schick conversion rate rises with age and reaches 90% by 11 years of age. It is noted that asymptomatic carriers are an important epidemiological factor in diphtheria and that carrier rates for school children are high (prevalence of 7.5% while the rate of coloization with C. diphtheriae over a period of one year was 30%). Although immunization protects against clinical diphtheria, it does not prevent the carrier state. Thus, for the control of diphtheria, one should aim for 100% compliance. Some suggestions as to how higher levels of immunity may be achieved are described.

Morbidity pattern amongst some primary school entrants in Malaysia

Chen ST, Dugdale AE

Trop Geogr Med, 1972 Sep;24(3):269-74.

PMID: 4636102

Weight and height curves for Malaysian schoolchildren

Chen ST, Dugdale AE

Med J Malaya, 1970 Dec;25(2):99-101.

PMID: 4251142

Incidence of nasal trauma associated with nasal prong versus nasal mask during continuous positive airway pressure treatment in very low birthweight infants: a randomised control study

Yong SC, Chen SJ, Boo NY

Arch. Dis. Child. Fetal Neonatal Ed., 2005 Nov;90(6):F480-3.

PMID: 15941825

To compare the incidence of nasal trauma associated with the use of prong or mask during nasal continuous positive airway pressure (nCPAP) support in very low birthweight (<1501 g) infants.

A false-positive result with the American Society for Testing and Materials D5712-95 test method for protein given by a common vulcanization accelerator

Chen SF, Teoh SC, Porter M

J Allergy Clin Immunol, 1997 Nov;100(5):713-4.

PMID: 9389305

Bone age of Malaysian children aged 12 to 28 months

Chen ST, Jee FC, Mohamed TB

J Singapore Paediatr Soc, 1990;32(3-4):97-101.

PMID: 2133763

Between 1976 and 1979, hand radiographs of 112 Malay children, 55 males and 57 females aged from 12 to 28 months, from higher socio-economic class families were obtained and studied by two radiologists. These children were part of a longitudinal study on growth and development. A total of 268 hand and wrist radiographs were taken, which the radiologists read independently of each other using the Greulich and Pyle Atlas. The bone age was then compared with the chronological age and the difference, if any, was noted and 'scored'. It was found that 83.4% of cases for males and 94.8% of cases for females matched within the +/- 6 months discrepancy range. For practical purposes therefore, our population may use the Greulich-Pyle Atlas with a good degree of confidence. Typical hand radiographs of male and female Malay children at 12, 18 and 24 months of age are also presented and these may be used as standards for Malaysian children at the respective age groups.

The sensitivity of staphylococci to antibiotics

Puthucheary SD, Chen ST, Dugdale AE

Med J Malaya, 1972 Jun;26(4):262-5.

PMID: 5069415

Beta haemolytic streptococcal carriers among normal schoolchildren

Chen ST, Dugdale AE, Puthucheary SD

Trop Geogr Med, 1972 Sep;24(3):257-64.

PMID: 4636100

Sensitivity of Staphylococci to antibiotics

Puthucheary SD, Chen ST, Dugdale AE

Med J Malaysia, 1972 Jun;26(4):262-265.

PMID: 35158504

No abstract available.

Patterns of growth and nutrition in childhood

Dugdale AE, Chen ST, Hewitt G

Am J Clin Nutr, 1970 Oct;23(10):1280-7.

PMID: 5475659

Fulltext Genetic diversity of geographically distinct Streptococcus dysgalactiae isolates from fish

Abdelsalam M, Eissa AE, Chen SC

J Adv Res, 2015 Mar;6(2):233-8.

PMID: 25750757 DOI: 10.1016/j.jare.2013.12.003

Streptococcus dysgalactiae is an emerging pathogen of fish. Clinically, infection is characterized by the development of necrotic lesions at the caudal peduncle of infected fishes. The pathogen has been recently isolated from different fish species in many countries. Twenty S. dysgalactiae isolates collected from Japan, Taiwan, Malaysia and Indonesia were molecularly characterized by biased sinusoidal field gel electrophoresis (BSFGE) using SmaI enzyme, and tuf gene sequencing analysis. DNA sequencing of ten S. dysgalactiae revealed no genetic variation in the tuf amplicons, except for three strains. The restriction patterns of chromosomal DNA measured by BSFGE were differentiated into six distinct types and one subtype among collected strains. To our knowledge, this report gives the first snapshot of S. dysgalactiae isolates collected from different countries that are localized geographically and differed on a multinational level. This genetic unrelatedness among different isolates might suggest a high recombination rate and low genetic stability.

Prevalence and Risk Factors for Cardiac and Liver Iron Overload in Adults with Thalassemia in Malaysia

Ngim CF, Lee MY, Othman N, Lim SM, Ng CS, Ramadas A

Hemoglobin, 2019 Mar;43(2):95-100.

PMID: 31179787 DOI: 10.1080/03630269.2019.1599906

We explored the severity and risk factors for cardiac and liver iron overload (IOL) in 69 thalassemia patients who underwent T2* magnetic resonance imaging (T2* MRI) in a Malaysian tertiary hospital from 2011 to 2015. Fifty-three patients (76.8%) had transfusion-dependent thalassemia (TDT) and 16 (23.2%) had non transfusion-dependent thalassemia (NTDT). Median serum ferritin prior to T2* MRI was 3848.0 μg/L (TDT) and 3971.0 μg/L (NTDT). Cardiac IOL was present in 16 (30.2%) TDT patients and two (12.5%) NTDT patients, in whom severe cardiac IOL defined as T2* <10 ms affected six (11.3%) TDT patients. Liver IOL was present in 51 (96.2%) TDT and 16 (100%) NTDT patients, 37 (69.8%) TDT and 13 (81.3%) NTDT patients were in the most severe category (>15 mgFe/gm dry weight). Serum ferritin showed a significantly strong negative correlation with liver T2* in both TDT (rs = -0.507, p = 0.001) and NTDT (r = -0.762, p = 0.002) but no correlation to cardiac T2* in TDT (r = -0.252, p = 0.099) as well as NTDT (r = -0.457, p = 0.100). For the TDT group, regression analysis showed that cardiac IOL was more severe in males (p = 0.022) and liver IOL was more severe in the Malay ethnic group (p = 0.028) and those with higher serum ferritin levels (p = 0.030). The high prevalence of IOL in our study and the poor correlation between serum ferritin and cardiac T2* underline the need to routinely screen thalassemia patients using T2* MRI to enable the early detection of cardiac IOL.

Fulltext Effects of blood flow restriction training on sports performance in athletes: a systematic review with meta-analysis

Li R, Chee CS, Kamalden TF, Ramli AS, Yang K

J Sports Med Phys Fitness, 2024 Jan;64(1):55-65.

PMID: 37902798 DOI: 10.23736/S0022-4707.23.15220-0

INTRODUCTION: Blood flow restriction training (BFRT) is an effective training method to improve sports performance in healthy athletes. Nevertheless, a systematic review with meta-analysis regarding how BFRT affects sports performance in athletes is still lacking. Consequently, the study attempted to expand and consolidate the prior studies regarding the effect of BFRT on technical and physical performance in athletes.

EVIDENCE ACQUISITION: This study was based on PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyzes) statement guidelines for a systematic review of the academic databases Scopus, Web of Science, PubMed, EBSCOhost (SportDiscus), and Google Scholar. The PEDro scale was used to assess the methodological quality of the included publications, which ranged from moderate to high quality. The systematic review protocol was registered on inplasy.com (INPLASY202380049).

EVIDENCE SYNTHESIS: Out of 249 studies identified, 93 articles were evaluated as eligible, and after the screening, 18 studies were finally included in this systematic review. Meta-analysis results showed a significant enhancement on vertical jump height in the BFRT group compared to the control group (SMD=1.39, 95% CI=0.30-2.49, P=0.01). BFRT was able to significantly increase maximal oxygen uptake (SMD=1.65, 95% CI=0.56-2.74, P<0.01). While no significant improvement in sprint time was observed (SMD= -0.18, 95% CI=-1.18-0.82, P=0.115).

CONCLUSIONS: The finding suggests that BFRT is beneficial to athletes as this training method can be effective in enhancing physical and technical performance in athletes. Nevertheless, further analysis needs to be conducted to fully determine the effectiveness of the moderators of the intervention on sports performance.

Feeding Artemia franciscana (Kellogg) larvae with bacterial heat shock protein, protects from Vibrio campbellii infection

Sung YY, Ashame MF, Chen S, Macrae TH, Sorgeloos P, Bossier P

J Fish Dis, 2009 Aug;32(8):675-85.

PMID: 19515074 DOI: 10.1111/j.1365-2761.2009.01046.x

Among their numerous physiological effects, heat shock proteins (Hsps) are potent immunomodulators, a characteristic reflecting their potential as therapeutic agents and which led to their application in combating infection. As an example, the up-regulation of endogenous Hsp70 in the branchiopod crustacean Artemia franciscana (Kellogg) is concurrent with shielding against bacterial infection. To better understand this protective mechanism, gnotobiotic Artemia were fed with Escherichia coli treated to over-produce different prokaryotic Hsps. This was shown to increase larval resistance to experimental Vibrio campbellii exposure. Immunoprobing of Western blots showed that the enhanced resistance to V. campbellii correlated with DnaK production in E coli. A definitive role for DnaK was then demonstrated by feeding Artemia larvae with transformed bacteria over-producing only this protein, although other Hsps such as DnaJ and grpE also provided tolerance against Vibrio infection. Feeding of bacteria synthesizing selected Hsps is therefore suggested as an alternative to antibiotic use as a means of enhancing resistance of Artemia larvae to bacterial infection, which may have potential applications in aquaculture.

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