1.Study on the effect of Y2O3 addition to the fluorescent property of dental porcelain.
Nik Mohd Polo Kinin NM ; Wan Mohd Arif WI ; Zainal Arifm A
The Medical Journal of Malaysia 2004;59 Suppl B():23-24
The appearance of dental porcelains is comparable to natural teeth. This study discusses the effect of Y2O3 addition to the fluorescent property of dental porcelains. The composition of dental porcelains contained Y2O3 as the fluorescent agent and base frit. The combinations of Y2O3 added consist of a series with 0.5, 1.0, 1.5, 2.0 and 2.5 wt% respectively, based on the total composition. In the extreme condition, fluorescent agents are added from 5.0 up to 10.0 wt%. In order to enhance the fluorescent property of dental porcelains, an opacifiying agent, cerium oxide (CeO2) was also added to dental porcelains composition. The fluorescent property was determined using Spectroline EF-1400C/F that emits 240 nm wavelength ultraviolet light. The microstructure was examined by Scanning Electron Microscope (SEM). The result shows that, the fluorescent properties displayed are similar to natural teeth when subjected to ultraviolet light. SEM micrograph was able to show the fluorescent agent dispersed in glass phase. Increasing additions of Y2O3 gave the fluorescent properties near to natural teeth.
*Biocompatible Materials
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*Cerium
;
Dental Porcelain/*chemical synthesis
;
*Esthetics, Dental
;
Fluorescence
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*Yttrium
2.Ventricular dyssynchrony is common among heart failure patients with narrow QRS complex
Yaakob ZH ; Syed Tamin S ; Nik Zainal NH ; Chee KH ; Chong WP ; Hashim NE ; Singh R ; Zainal Abidin I ; Haron H ; Wan Ahmad WA
Journal of University of Malaya Medical Centre 2009;12(2):57-62
Current selection guideline for CRT uses broad QRS duration (>120 ms) as a marker for ventricular
dyssynchrony. However, more recent data supports mechanical marker specifically measured
by Tissue Doppler Imaging (TDI) as a better criterion to predict response to CRT. Sixty seven
patients with significant left ventricular dysfunction (EF less than 40%) and narrow QRS complex
were prospectively enrolled. They underwent Tissue Doppler Imaging (TDI) study to evaluate
intraventricular mechanical dyssynchrony. Dyssynchrony index which is defined as standard
deviation of time to peak systolic velocity in twelve ventricular segments was measured. A value
greater than 32.6 is taken to reflect significant ventricular dyssynchrony. Overall 38 patients
(56.7%) demonstrated significant dyssynchrony. There was no significant correlation between QRS
duration and the Ts-SD-12 (r = 0.14, p = 0.11). Ventricular mechanical dyssynchrony is common
in patients with normal QRS duration. Therefore, QRS duration alone will miss a substantial
proportion of suitable patients for CRT and therefore deny them this adjunct therapy. We propose
echocardiographic parameters, specifically TDI, to be included in patient selection criteria for CRT.
3. The phytochemical and pharmacological properties of artocarpin from Artocarpus heterophyllus
Nik Nurul DAUD ; Nordin SIMBAK ; Abdi SEPTAMA ; Eldiza RAHMI
Asian Pacific Journal of Tropical Medicine 2020;13(1):1-7
Artocarpus heterophyllus Lam. (Moraceae) has been traditionally used in treating various diseases such as diabetes, diarrhea, malarial fever, inflammation, wound healing and other diseases. Since various bioactive compounds have been found in this plant, this review focuses on the phytochemical and pharmacological properties of a potent bioactive compound artocarpin. Despite its various functions, a mechanistic review on this compound has not been reviewed specifically. Here, pharmacological studies in vitro and in vivo on artocarpin are discussed thoroughly stressing on anticancer, antimicrobial, anti-tyrosinase, antioxidant and antiinflammatory aspects of artocarpin. This review would be beneficial for future study to show the competency of natural products for theirtherapeutic characteristics.
4.Synergistic Effect of Flavonoids from Artocarpus heterophyllus Heartwoods on Anticancer Activity of Cisplatin Against H460 and MCF-7 Cell Lines
Nik Nurul Najihah Nik Mat DAUD ; Abdi Wira SEPTAMA ; Nordin SIMBAK ; Nor Hidayah Abu BAKAR ; Eldiza Puji RAHMI
Natural Product Sciences 2019;25(4):311-316
Artocarpus heterophyllus has been used as traditional medicine. This plant is one of the sources of flavonoid. Flavonoid compounds possessed a wide range of biological properties including anticancer. This study was performed to investigate the cytotoxic effect of flavonoids from A. heterophyllus on H460 and MCF-7 cell lines. The interaction of flavonoids and cisplatin against tested cancer cells was also evaluated. MTT assay was used to determine the cytotoxic effect of flavonoid. Isobologram analysis was selected to evaluate the synergistic effect between flavonoid and cisplatin, their interaction was then confirmed using AO/PI staining method. Amongst of flavonoid compounds, artocarpin exhibited strong cytotoxic effect on both MCF-7 and H460 cell lines with IC₅₀ values of 12.53 µg/mL (28.73 µM) and 9.77 µg/mL (22.40 µM), respectively. This compound enhanced anticancer activity of cisplatin against H460 and MCF-7. The combination produced a synergistic effect on H460 and MCF-7 cell lines with a combination index (CI) values of 0.2 and 0.18, respectively. The AO/PI stained demonstrated that the combination of artocarpin and cisplatin caused morphological changes that indicated apoptosis. Moreover, artocarpanone also significantly increased cytotoxic effect of cisplatin compared to its single concentration with CI below than 1. This result suggested the potency of flavonoid named artocarpin to enhance the anticancer activity of cisplatin on H460 and MCF-7 cell lines.
Apoptosis
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Artocarpus
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Cell Line
;
Cisplatin
;
Flavonoids
;
MCF-7 Cells
;
Medicine, Traditional
;
Methods
;
Plants
5.Do Our Diabetic Patients Ready for Safe Pregnancy? Attitude Towards Preconception Care and Its Associated Factors Among Women With Diabetes Attending Government Health Clinics in Terengganu
Hassan Basri Mukhali ; Nik Nor Ronaidi Nik Mahdi ; Aniza Abd Aziz ; Shaiful Ehsan Shalihin ; Anisah Jalaluddin ; Kasemani Embong ; Sunita Suhimi
Malaysian Journal of Medicine and Health Sciences 2022;18(No.1):162-170
Introduction: Women with uncontrolled diabetes may conceive but will result in poor pregnancy outcomes. This
study aimed to assess the level of knowledge and attitude and determine factors associated with attitude towards
preconception care. Method: A cross-sectional study was conducted in various government health clinics from all
districts in Terengganu by using multistage random sampling. A self-administered questionnaire was applied to assess
the level of knowledge and attitude towards preconception care. Multiple logistic regressions were applied to determine factors associated with attitude towards preconception care. Results: A total of 422 respondents were involved.
The prevalence of respondents with unsatisfactory knowledge and attitude were 41.7% and 84.1%, respectively.
Knowledge was not significantly associated with attitude. Respondents who used contraception had a better attitude
(Adj. OR: 0.44, 95% CI:0.23,0.84). Low household income was associated (Adj. OR: 2.40, 95% CI:1.10,5.26) with
an unsatisfactory attitude towards preconception care. Conclusion: Attitude towards preconception care amongst diabetic women who were attending primary care clinics was unsatisfactory. A structured and focused preconception
educational programme care is necessary, especially amongst low-income women.
6.Mildly Elevated Alkaline Phosphatase (ALP) - a Liver Tumour Hint Not to Be Missed
Hassan Basri Mukhali ; Shaiful Ehsan Shalihin ; Nik Mohd Nurhafizi Nik Anuar MD ; Zailani Mohd ; N. Aiman Anuar
Malaysian Journal of Medicine and Health Sciences 2021;17(No.1):194-196
Healthcare providers are responsible for performing medical check-ups, analyse and interpret patient's laboratory
results. It is common for an initially asymptomatic patient to receive abnormal results including liver enzymes such as
alkaline phosphatase (ALP). The concern in these patients is the cut-off value for mildly elevated levels that requires
intervention. This paper reports a case of liver malignancy in a 32-year-old man who presented with a mild elevation
of ALP level less than five times the upper limit of normal. The patient had no clinical symptoms. Early ultrasound
liver assessment showed dilated common bile duct, which led to an urgent CT scan of the liver that revealed supportive
features of fibrolamellar carcinoma. The patient was managed successfully with early partial hepatectomy that
has saved him from morbidity and mortality of liver malignancy. Indeed, liver malignancy can be detected early in a
health clinic from a further assessment of trivial elevation of ALP.
7.Prevalence of asthma-like symptoms and assessment of lung function in schoolchildren born with low birth weight.
Nik ZAINAL ; Andy RAHARDJA ; Che Yusoff Faris IRFAN ; Ariffin NASIR ; Wan Ibrahim Wan PAUZI ; Ilias Mohamad IKRAM ; Hans Van ROSTENBERGHE
Singapore medical journal 2016;57(12):690-693
INTRODUCTIONThis study aimed to determine the prevalence of asthma-like symptoms among schoolchildren with low birth weight (LBW), and to compare the lung function of these children with that of children with normal birth weight.
METHODSThis was a comparative cross-sectional study. We recruited children aged 8-11 years from eight primary schools in Kota Bharu, Kelantan, Malaysia. The children were divided into two groups: those with LBW (< 2,500 g) and those with normal birth weight (≥ 2,500 g). Parents of the enrolled children were asked to complete a translated version of the International Study of Asthma and Allergies in Childhood questionnaire. Lung function tests, done using a MicroLoop Spirometer, were performed for the children in both groups by a single investigator who was blinded to the children's birth weight.
RESULTSThe prevalence of 'ever wheezed' among the children with LBW was 12.9%. This value was significantly higher than that of the children with normal birth weight (7.8%). Forced vital capacity (FVC), forced expiratory volume in one second, and forced expiratory flow when 50% and 75% of the FVC had been exhaled were significantly lower among the children with LBW as compared to the children with normal birth weight.
CONCLUSIONLBW is associated with an increased prevalence of asthma-like symptoms and impaired lung function indices later in life. Children born with LBW may need additional follow-up so that future respiratory problems can be detected early.
Asthma ; epidemiology ; etiology ; Child ; Cross-Sectional Studies ; Databases, Factual ; Female ; Humans ; Infant, Low Birth Weight ; Malaysia ; epidemiology ; Male ; Prevalence ; Respiratory Function Tests ; Respiratory Sounds ; Schools ; Spirometry ; Surveys and Questionnaires