1.Identification and Characterization of Macrophomina phaseolina Causing Leaf Blight on White Spider Lilies (Crinum asiaticum and Hymenocallis littoralis) in Malaysia
Abd Rahim HUDA-SHAKIRAH ; Yee Jia KEE ; Abu Bakar Mohd HAFIFI ; Nurul Nadiah MOHAMAD AZNI ; Latiffah ZAKARIA ; Masratul Hawa MOHD
Mycobiology 2019;47(4):408-414
Crinum asiaticum and Hymenocallis littoralis, commonly known as spider lilies are bulbous perennial and herbaceous plants that widely planted in Malaysia as ornamental. During 2015–2016, symptom of leaf blight was noticed on the hosts from several locations in Penang. The symptom appeared as irregular brown to reddish lesions surrounded by yellow halos. As the disease progressed, the infected leaves became blighted, dried, and fell off with the presence of black microsclerotia and pycnidia on the lesions parts. The present study was conducted to investigate the causal pathogen of leaf blight on C. asiaticum and H. littoralis. Based on morphological characteristics and DNA sequences of internal transcribed spacer (ITS) region and translation elongation factor 1-alpha (TEF1-α) gene, the causal pathogen was identified as Macrophomina phaseolina. Phylogenetic analysis of combined dataset of ITS and TEF1-α grouped the isolates studied with other isolates of M. phaseolina from GenBank. The grouping of the isolates was supported by 96% bootstrap value. Pathogenicity test proved the role of the fungus in causing leaf blight on both hosts.
2.Peranan RNA Bulat dalam Kanser Kolorektal
Malaysian Journal of Health Sciences 2024;22(No.1):25-37
Circular RNAs (circRNAs) are a class of non-coding RNAs formed by covalently closed loops through backsplicing.
From previous studies, RNA was found to be involved in the development and formation of colorectal cancer. By
emphasizing on the true function of circRNAs through focusing on its biogenesis, roles in disease treatment and roles as
biomarkers, we are able to utilize circRNAs as therapy for cancer. Cancer is a chronic disease that contributes to high
mortality worldwide. Colorectal cancer is one of the most common cancer in the world and in Malaysia in general. The
incidence and mortality rates of colorectal cancer worldwide show a drastic and alarming increase. Colorectal cancer
occurs due to mutations from certain genes involved in proliferation regulation, cell survival and cell death. This article
aims to discuss the role and importance of Circular RNA in colorectal cancer. By identifying the true function of
circRNAs, it can help us to develop our understanding on the real biological roles of circRNAs in colorectal cancer.
3. Predictors of in-hospital mortality by logistic regression analysis among melioidosis patients in Northern Malaysia: A retrospective study
Kamaruddin MARDHIAH ; Kamaruddin MARDHIAH ; Nadiah WAN-ARFAH ; Nyi Nyi NAING ; Muhammad Radzi Abu HASSAN ; Huan-Keat CHAN
Asian Pacific Journal of Tropical Medicine 2021;14(8):356-363
Objective: To identify the predictors of mortality among in-hospital melioidosis patients. Methods: A total of 453 patients in Hospital Sultanah Bahiyah, Kedah, and Hospital Tuanku Fauziah, Perlis with culture-confirmed melioidosis were retrospectively included in the study. Advanced multiple logistic regression was used to obtain the final model of predictors of mortality from melioidosis. The analysis was performed using STATA/SE 14.0. Results: A total of 50.11% (227/453) of the patients died at the hospital, and a majority (86.75%, 393/453) of cases were bacteremic. The logistic regression estimated that the bacteremic type of melioidosis, low platelet count, abnormal white blood cell counts, and increased urea value were predictors of mortality. The results showed that bacteremic melioidosis increased the risk of death by 4.39 times (OR 4.39, 95% CI 1.83-10.55, P=0.001) compared to non-bacteremic melioidosis. Based on laboratory test, the adjusted ORs from the final model showed that all three blood investigations were included as the associated factors of mortality for the disease [high white blood cell (>10×109/L): OR 2.43, 95% CI 1.41-4.17, P<0.001; low white blood cell (<4×109/L): OR 3.82, 95% CI 1.09-13.34, P=0.036; low platelet (<100×109/L): OR 4.19, 95% CI 1.89-9.30, P<0.001; high urea (>7 800 μmol/L): OR 5.53, 95% CI 2.50-12.30, P<0.001; and low level of urea (<2 500 μmol/L): OR 3.52, 95% CI 1.71-7.23, P=0.001). Conclusions: Routine blood investigations during a hospital admission can early identify predictors of mortality in melioidosis patients.
4.Predictors of Coronary Heart Disease (CHD) among Malaysian Adults: Findings from MyDiet-CHD Study
Wan Zulaika Wan Musa ; Aryati Ahmad ; Nur Ain Fatinah Abu Bakar ; Nadiah Wan-Arfah ; Ahmad Wazi Ramli ; Nyi Nyi Naing
Malaysian Journal of Medicine and Health Sciences 2022;18(No.6):259-269
Introduction: This study aimed to determine the risk factors of CHD among the Malaysian adult population. Methods:
Using a cross- sectional observational study design, this study involved 365 adult patients aged between 30-64 years,
attending clinics from eight government hospitals and four health clinics in Terengganu, Pahang, Selangor, Putrajaya, Penang, Kedah, Johor and Sabah from February 2018 until September 2020. Sociodemographic characteristics,
clinical and dietary data, physical activity and stress level were recorded using a structured questionnaire. Multiple
logistic regression was used to analyse CHD risk factors. Results: The overall response rate was 99.2%. The adjusted
odds ratio of CHD was greater for age (AOR; [%95 CI]) (1.043;[ 1.009,1.078]); waist circumference (1.033;[1.009,
1.057]); total fat intake (1.035;[1.021, 1.050]); full cream dairy products intake (1.004;[1.001, 1.008]); smokers vs
non-smokers (4.691;[2.399, 9.176]); individual with family history of CHD vs without family history (2.705;[ 1.496,
4.891]); married vs single (0.434;[ 0.217,0.867]); and lower for HDL cholesterol (0.185;[0.052, 0.662]); Chinese vs
Malays (10.619;[ 2.255, 49.995]); and third lowest income (0.197;[ 0.073, 0.532]) and forth lowest income (0.167;[
0.056, 0.499]) vs lowest income. Conclusion: Age, race, income, smoking and marital status, family history of CHD,
waist circumference, HDL cholesterol, total fat intake, full cream dairy products intake were significantly associated
with CHD among this population. This finding is particularly important to the primary health carers to identify at-risk
CHD individuals thus appropriate intervention could be provided.
5.GFAT1: A Potential Prognostic Biomarker in Colorectal Cancer
Habibah Faroque ; Abdullah Azmahani ; Muhammad Afiq Izzuddin Othman ; Nor Hidayah Abu Bakar ; Nadiah Wan-Arfah ; Siti Zarqah Omar ; Yasuhiro Nakamura ; Hironobu Sasano
Malaysian Journal of Medicine and Health Sciences 2023;19(No.3):13-19
Introduction: There is an increasing demand for additional techniques to diagnose and treat cancer including CRC
or colorectal cancer effectively. Utilizing antibodies as biomarker could contribute to accurate diagnosis of cancer
due to its high specificity and sensitivity. One of the etiologies of CRC progression was proposed as the alterations
of hexosamine biosynthetic pathway which could subsequently influence the rate-limiting enzyme, glutamine-fructose-6-phosphate aminotransferase (GFAT1). These increased enzymatic activities resulted in an elevation of glucose
uptake that provides nutrients facilitating the progression of cancer cells. Therefore, we attempted to determine the
potential of GFAT1 as the biomarker for CRC by correlating its expression with clinicopathological features of the patients. Methods: A total of 132 10% formalin-fixed paraffin embedded tissue were retrieved. Immunohistochemistry
(IHC) was performed on the tissue sections and digital images were subsequently acquired. All the images were automatedly analyzed using IHC Profiler. GFAT1 immunoreactivity in colorectal tissues was calculated using an adapted
H-score formula. Clinicopathological features of the patients were statistically correlated with the status of GFAT1.
Results: Colorectal adenocarcinoma tissues had the significantly highest GFAT1 H-scores with the mean of 103.18
compared to adenoma and non-tumor tissues. There have been no significant associations between clinicopathological characteristics of the patients and the status of GFAT1 except for tumor size. Conclusion: Immunoreactivity of
GFAT1 was significantly different between non-tumorous tissues and adenocarcinoma as well as between adenoma
and adenocarcinoma tissues. GFAT1 could serve as one of the prognostic biomarkers or useful targets.
6.Sonographic Assessment of Renal Size and Its Correlation With Anthropometric Measures Among Indigenous Population in Peninsular Malaysia
Abdul Sattar Arif Khammas ; Hasyma Abu Hassan ; Ramlah Mohamad Ibrahim ; Nurul Nadiah Mohamad Nasir ; Norafida Bahari ; Subapriya Suppiah ; Suraini Mohamad Saini ; Idris Ibrahim ; Mohd Hazeman Zakaria ; Rozi Mahmud
Malaysian Journal of Medicine and Health Sciences 2020;16(No.4):138-145
7.Prevalence of Ultrasound-diagnosed Non Alcoholic Fatty Liver Disease Among Rural Indigenous Population in Malaysian and Its Association With Biochemical and Anthropometric Measures
Abdul Sattar AK ; Subapriya Suppiah ; Ramlah Mohamad Ibrahim ; Nurul Nadiah Mohamed Nasir ; Norafida Bahari ; Hasyma Abu Hassan ; Suraini Mohammad Saini ; Idris Ibrahim ; Mohd Hazeman Zakaria ; Rozi Mahmud
Malaysian Journal of Medicine and Health Sciences 2021;17(No.3):88-97
Introduction: Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide, especially in the Western world and Asia-Pacific regions. This study was designed to determine the prevalence of NAFLD detected by sonographic assessment among the rural indigenous population in Peninsula Malaysia and its association with anthropometric and biochemical factors. Methods: A cross-sectional survey was carried out from January 2014-February 2016. Subjects were recruited among indigenous peninsula Malaysia population in rural villages, aged ≥18 years old. The survey was questionnaire-based followed by anthropometric and blood parameters measurements. All subjects underwent abdominal ultrasound assessment to screen for the presence of NAFLD. Semi-quantitative visual grading was performed to assess for mild, moderate or severe NAFLD. Results: A total of 270 subjects underwent the screening program (mean age 43.3 ±14.0 years). Approximately 53 subjects (19.6 %) were identified with NAFLD. Of those with NAFLD, approximately 83% had moderate grade of fatty liver and the remainder were diagnosed with mild grade. NAFLD was closely associated with age, body mass index (BMI), central obesity, hypertension, total cholesterol (TC), triglyceride/high density lipoprotein-cholesterol (TG/HDL-C) ratio. On multivariate logistic regression, a high BMI (≥23.0 kg/m2), central obesity, and raised TG/HDL-C ratio were independent risk factors for developing NAFLD. Conclusion: This pioneer study defines the prevalence of NAFLD among rural indigenous population in Peninsula Malaysia. Lifestyle-related diseases, such as NAFLD can affect both rural and urban communities with equal severity. High BMI, central obesity, and elevated TG/HDL-C ratio were independent risk factors for developing NAFLD.