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Fulltext A successful case of endovascular treatment (EVT) of anterior communicating artery aneurysm associated with moyamoya disease

Sobri, M.A., Noorakmal, A., Razali, R.

Malaysian Journal of Medicine and Health Sciences, 2012;8(1):73-76.
MyJurnal

Saccular aneurysms associated with moyamoya disease are commonly located in the vertebrobasilar circulation. Anterior circulation aneurysm associated with moyamoya disease is uncommon and is usually treated by neurosurgical clipping. Objective: We report a succesful treatment using the endovascular approach in a case of ruptured anterior communicating artery aneurysm in unilateral moyamoya disease. Clinical Presentation: A 23 year old man presented with a 5 day history of headache, diplopia and fever. Computed Tomography (CT) scan and cerebral angiogram showed a bilobed anterior comunicating artery aneurysm. There was also severe M1 segment stenosis of the left middle cerebral artery with multiple collaterals, representing moyamoya vessels. Intervention: Treatment was done under general anesthesia and followed the standard practice for endovascular treatment. The aneurysm was occluded with three detachable platinum microcoils (Microplex®, Microvention®). Conclusion: Endovascular treatment can be a treatment option for ruptured anterior circulation saccular aneurysms associated with moyamoya disease.
Fulltext Grief in a depressed elderly with pathological jealousy and major vascular neurocognitive disorder: a case report

Loo, J.L., Syed-Mohamad, S.N., Razali, R.

Malaysian Journal of Psychiatry, 2015;24(2):0-0.
MyJurnal

Introduction: Grief may be complicated in patients with dementia, posing a challenge to caregivers and healthcare professionals. A case of major vascular neurocognitive disorder with pathological jealousy and major depressive disorder in grief is reported.
Case: A 73 year-old Malay lady with diabetes mellitus, hypertension, dyslipidemia, and right cerebrovascular
accident developed major vascular neurocognitive disorder with pathological jealousy and major depressive disorder. She presented with unmanageable agitation and depression after her late husband’s death. She also experienced
a bizarre delusion of her husband’s resurrection and infidelity. Her psychotropic medications were optimised and her bizarre delusion was challenged daily using validation and distraction techniques. Combined pharmacotherapy and behavioural therapy managed to resolve her psychiatric symptoms and facilitate her grief process.
Conclusion: Grief reaction in major vascular neurocognitive disorder patients is often atypical. Individualized treatment comprising both pharmacotherapy and behavioural therapy should be offered to treat atypical grief and the underlying disease.
Perspectives in Malaysian psychiatry

Maniam T, Sidi H, Razali R

Asia Pac Psychiatry, 2013 Apr;5 Suppl 1:2-3.
PMID: 23857829 DOI: 10.1111/appy.12035
Fulltext The effect of depressive disorders on compliance among hypertensive patients undergoing pharmacotherapy

Zakaria N, Baharudin A, Razali R

ASEAN Journal of Psychiatry, 2009;10(2):89-99.
MyJurnal

Objective: To study the effect of depressive disorders, severity of depression and, sociodemographic factors on drug compliance among hypertensive patients at primary care clinics. Methods: A total of 201 hypertensive patients on treatment for at least 3 months who attended the HUKM Primary Care Clinic and Salak Polyclinic were selected for this study. Patients were screened for depressive disorders using the Hospital Anxiety Depression Scale (HADS) and those who scored 8 and more were further interviewed to establish a diagnosis using the Mini International Neuropsychiatric Interview (MINI). Patients who were diagnosed to have depressive disorders were further rated for the severity of the illness by using Hamilton Rating Scale for Depression (HAMD). Drug compliance was assessed during a 2 month follow up using the pill counting method (ratio 0.8 – 1.2 considered as compliant). Results: The prevalence of non-compliance among hypertensive patients was 38.3%. There was no association between the diagnosis of depressive disorders and drug compliance. Among the 12 patients who had depressive disorders, severity of depression as rated by HAMD, showed significant association with drug compliance (Mann-Whitney test z = -2.083, p
Fulltext Structure-Function Characteristics of SARS-CoV-2 Proteases and Their Potential Inhibitors from Microbial Sources

Razali R, Asis H, Budiman C

Microorganisms, 2021 Nov 30;9(12).
PMID: 34946083 DOI: 10.3390/microorganisms9122481

The COVID-19 pandemic, caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), is considered the greatest challenge to the global health community of the century as it continues to expand. This has prompted immediate urgency to discover promising drug targets for the treatment of COVID-19. The SARS-CoV-2 viral proteases, 3-chymotrypsin-like protease (3CLpro) and papain-like cysteine protease (PLpro), have become the promising target to study due to their essential functions in spreading the virus by RNA transcription, translation, protein synthesis, processing and modification, virus replication, and infection of the host. As such, understanding of the structure and function of these two proteases is unavoidable as platforms for the development of inhibitors targeting this protein which further arrest the infection and spread of the virus. While the abundance of reports on the screening of natural compounds such as SARS-CoV-2 proteases inhibitors are available, the microorganisms-based compounds (peptides and non-peptides) remain less studied. Indeed, microorganisms-based compounds are also one of the potent antiviral candidates against COVID-19. Microbes, especially bacteria and fungi, are other resources to produce new drugs as well as nucleosides, nucleotides, and nucleic acids. Thus, we have compiled various reported literature in detail on the structures, functions of the SARS-CoV-2 proteases, and potential inhibitors from microbial sources as assistance to other researchers working with COVID-19. The compounds are also compared to HIV protease inhibitors which suggested the microorganisms-based compounds are advantageous as SARS-CoV2 proteases inhibitors. The information should serve as a platform for further development of COVID-19 drug design strategies.
Young female survivors of sexual abuse in Malaysia and depression: what factors are associated with better outcome?

Wahab S, Tan SM, Marimuthu S, Razali R, Muhamad NA

Asia Pac Psychiatry, 2013 Apr;5 Suppl 1:95-102.
PMID: 23857844 DOI: 10.1111/appy.12051

Research in the field of child sexual abuse is lacking in Malaysia. The aims of this study are to identify the association between sociodemographic factors and depression among sexually abused females.
Depression and coping in adults undergoing dialysis for end-stage renal disease

Ibrahim N, Kong NCT, Desa A, Razali R

Asia Pac Psychiatry, 2013 Apr;5 Suppl 1:35-40.
PMID: 23857835 DOI: 10.1111/appy.12042

Introduction: Research on depression in local patients with end-stage renal disease (ESRD) is sparse. Thus, this study aims to examine the frequency and severity of depression among ESRD patients and relate depression with their coping skills.
Methods: A cross-sectional study using universal sampling method was conducted at several dialysis centers in Kuala Lumpur, Selangor and Johor, Malaysia. The Beck Depression Inventory II (BDI-II) and the Brief COPE scale were used to measure depression and coping skill, respectively.
Results: The study involved 274 ESRD patients, comprising of 183 hemodialysis and 91 continuous ambulatory peritoneal dialysis patients. The result showed that 21.1% of the patients experienced moderate to severe depression. Several components of coping skill were associated with depression. However, only two components in the Brief COPE (behavioral disengagement and self-blame) were identified as predictors.
Discussion: This study showed that depression is common in ESRD patients and is related to the types of coping skills adopted by patients. Hence, this study provides some insight into ESRD patients with depression. Appropriate counseling should be given to these patients to empower them to cope with the illness so as to enhance their quality of life.
Burden of care among caregivers of patients with Parkinson disease: a cross-sectional study

Razali R, Ahmad F, Rahman FN, Midin M, Sidi H

Clin Neurol Neurosurg, 2011 Oct;113(8):639-43.
PMID: 21684679 DOI: 10.1016/j.clineuro.2011.05.008

Parkinson disease (PD) affects the lives of both the individuals and their family members. This study aims at investigating for clinical as well as socio-demographic factors associated with the perception of burden among the caregivers of individuals with PD in Malaysia.
Fulltext Synthesis and characterization of a narrow size distribution of zinc oxide nanoparticles

Zak AK, Razali R, Majid WH, Darroudi M

Int J Nanomedicine, 2011;6:1399-403.
PMID: 21796242 DOI: 10.2147/IJN.S19693

Zinc oxide nanoparticles (ZnO-NPs) were synthesized via a solvothermal method in triethanolamine (TEA) media. TEA was utilized as a polymer agent to terminate the growth of ZnO-NPs. The ZnO-NPs were characterized by a number of techniques, including X-ray diffraction analysis, transition electron microscopy, and field emission electron microscopy. The ZnO-NPs prepared by the solvothermal process at 150°C for 18 hours exhibited a hexagonal (wurtzite) structure, with a crystalline size of 33 ± 2 nm, and particle size of 48 ± 7 nm. The results confirm that TEA is a suitable polymer agent to prepare homogenous ZnO-NPs.
Fulltext Transcriptome analysis of Streptococcus pneumoniae treated with the designed antimicrobial peptides, DM3

Le CF, Gudimella R, Razali R, Manikam R, Sekaran SD

Sci Rep, 2016 05 26;6:26828.
PMID: 27225022 DOI: 10.1038/srep26828

In our previous studies, we generated a short 13 amino acid antimicrobial peptide (AMP), DM3, showing potent antipneumococcal activity in vitro and in vivo. Here we analyse the underlying mechanisms of action using Next-Generation transcriptome sequencing of penicillin (PEN)-resistant and PEN-susceptible pneumococci treated with DM3, PEN, and combination of DM3 and PEN (DM3PEN). DM3 induced differential expression in cell wall and cell membrane structural and transmembrane processes. Notably, DM3 altered the expression of competence-induction pathways by upregulating CelA, CelB, and CglA while downregulating Ccs16, ComF, and Ccs4 proteins. Capsular polysaccharide subunits were downregulated in DM3-treated cells, however, it was upregulated in PEN- and DM3PEN-treated groups. Additionally, DM3 altered the amino acids biosynthesis pathways, particularly targeting ribosomal rRNA subunits. Downregulation of cationic AMPs resistance pathway suggests that DM3 treatment could autoenhance pneumococci susceptibility to DM3. Gene enrichment analysis showed that unlike PEN and DM3PEN, DM3 treatment exerted no effect on DNA-binding RNA polymerase activity but observed downregulation of RpoD and RNA polymerase sigma factor. In contrast to DM3, DM3PEN altered the regulation of multiple purine/pyrimidine biosynthesis and metabolic pathways. Future studies based on in vitro experiments are proposed to investigate the key pathways leading to pneumococcal cell death caused by DM3.
Fulltext Giant Magnetoresistance Sensors: A Review on Structures and Non-Destructive Eddy Current Testing Applications

Rifai D, Abdalla AN, Ali K, Razali R

Sensors (Basel), 2016;16(3):298.
PMID: 26927123 DOI: 10.3390/s16030298

Non-destructive eddy current testing (ECT) is widely used to examine structural defects in ferromagnetic pipe in the oil and gas industry. Implementation of giant magnetoresistance (GMR) sensors as magnetic field sensors to detect the changes of magnetic field continuity have increased the sensitivity of eddy current techniques in detecting the material defect profile. However, not many researchers have described in detail the structure and issues of GMR sensors and their application in eddy current techniques for nondestructive testing. This paper will describe the implementation of GMR sensors in non-destructive testing eddy current testing. The first part of this paper will describe the structure and principles of GMR sensors. The second part outlines the principles and types of eddy current testing probe that have been studied and developed by previous researchers. The influence of various parameters on the GMR measurement and a factor affecting in eddy current testing will be described in detail in the third part of this paper. Finally, this paper will discuss the limitations of coil probe and compensation techniques that researchers have applied in eddy current testing probes. A comprehensive review of previous studies on the application of GMR sensors in non-destructive eddy current testing also be given at the end of this paper.
Fulltext Reaction-Multi Diffusion Model for Nutrient Release and Autocatalytic Degradation of PLA-Coated Controlled-Release Fertilizer

Irfan SA, Razali R, KuShaari K, Mansor N

Polymers (Basel), 2017 Mar 22;9(3).
PMID: 30970794 DOI: 10.3390/polym9030111

A mathematical model for the reaction-diffusion equation is developed to describe the nutrient release profiles and degradation of poly(lactic acid) (PLA)-coated controlled-release fertilizer. A multi-diffusion model that consists of coupled partial differential equations is used to study the diffusion and chemical reaction (autocatalytic degradation) simultaneously. The model is solved using an analytical-numerical method. Firstly, the model equation is transformed using the Laplace transformation as the Laplace transform cannot be inverted analytically. Numerical inversion of the Laplace transform is used by employing the Zakian method. The solution is useful in predicting the nutrient release profiles at various diffusivity, concentration of extraction medium, and reaction rates. It also helps in explaining the transformation of autocatalytic concentration in the coating material for various reaction rates, times of reaction, and reaction-multi diffusion. The solution is also applicable to the other biodegradable polymer-coated controlled-release fertilizers.
Cardiovascular risk factors of Alzheimer's disease and other neurocognitive disorders in Malaysia

Ibrahim B, Suppiah S, Piersson AD, Razali RM, Mohamad M, Abu Hassan H, et al.

Med J Malaysia, 2021 05;76(3):291-297.
PMID: 34031325

INTRODUCTION: Risk factors for cardiovascular disease (CVD) have been increasingly implicated in the development of dementia but little is known about the effects in a Malaysian population. We aimed to determine the interaction between sociodemographic and CVD risk factors among the dementia and mild cognitive impairment (MCI) patients in Malaysia.
MATERIALS AND METHODS: A cross-sectional study was conducted in the memory clinic at Hospital Kuala Lumpur (HKL). Medical records data from 2014 to 2019 were extracted. Mini Mental State Examination (MMSE) test was used to assess the neurocognitive function of patients.
RESULTS: A total of 298 patients (30 MCI, and 268 dementia) were evaluated, with dementia patients consisting of 78 Alzheimer's disease (AD), 93 Vascular dementia (VaD), 94 Mixed dementia, 2 early-onset Alzheimer's disease (EOAD) and 1 Logopenic Progressive Aphasia type of AD (LPA). MCI and dementia were significantly associated with a history of CVD, particularly stroke (p=0.023).
CONCLUSION: Given that stroke significantly predicted the risk of developing vascular dementia among the patients in a central Malaysian population, lifestyle modifications are recommended to alleviate these risk factors of CVD.
Soluble Expression and Catalytic Properties of Codon-Optimized Recombinant Bromelain from MD2 Pineapple in Escherichia coli

Razali R, Budiman C, Kamaruzaman KA, Subbiah VK

Protein J, 2021 06;40(3):406-418.
PMID: 33713245 DOI: 10.1007/s10930-021-09974-9

Bromelain, a member of cysteine proteases, is found abundantly in pineapple (Ananas comosus), and it has a myriad of versatile applications. However, attempts to produce recombinant bromelain for commercialization purposes are challenging due to its expressibility and solubility. This study aims to express recombinant fruit bromelain from MD2 pineapple (MD2Bro; accession no: OAY85858.1) in soluble and active forms using Escherichia coli host cell. The gene encoding MD2Bro was codon-optimized, synthesized, and subsequently ligated into pET-32b( +) for further transformation into Escherichia coli BL21-CodonPlus(DE3). Under this strategy, the expressed MD2Bro was in a fusion form with thioredoxin (Trx) tag at its N-terminal (Trx-MD2Bro). The result showed that Trx-MD2Bro was successfully expressed in fully soluble form. The protein was successfully purified using single-step Ni2+-NTA chromatography and confirmed to be in proper folds based on the circular dichroism spectroscopy analysis. The purified Trx-MD2Bro was confirmed to be catalytically active against N-carbobenzoxyglycine p-nitrophenyl ester (N-CBZ-Gly-pNP) with a specific activity of 6.13 ± 0.01 U mg-1 and inhibited by a cysteine protease inhibitor, E-64 (IC50 of 74.38 ± 1.65 nM). Furthermore, the catalytic efficiency (kcat/KM) Trx-MD2Bro was calculated to be at 5.64 ± 0.02 × 10-2 µM-1 s-1 while the optimum temperature and pH were at 50 °C and pH 6.0, respectively. Furthermore, the catalytic activity of Trx-MD2Bro was also affected by ethylenediaminetetraacetic acid (EDTA) or metal ions. Altogether it is proposed that the combination of codon optimization and the use of an appropriate vector are important in the production of a soluble and actively stable recombinant bromelain.
Fulltext An Eddy Current Testing Platform System for Pipe Defect Inspection Based on an Optimized Eddy Current Technique Probe Design

Rifai D, Abdalla AN, Razali R, Ali K, Faraj MA

Sensors (Basel), 2017 Mar 13;17(3).
PMID: 28335399 DOI: 10.3390/s17030579

The use of the eddy current technique (ECT) for the non-destructive testing of conducting materials has become increasingly important in the past few years. The use of the non-destructive ECT plays a key role in the ensuring the safety and integrity of the large industrial structures such as oil and gas pipelines. This paper introduce a novel ECT probe design integrated with the distributed ECT inspection system (DSECT) use for crack inspection on inner ferromagnetic pipes. The system consists of an array of giant magneto-resistive (GMR) sensors, a pneumatic system, a rotating magnetic field excitation source and a host PC acting as the data analysis center. Probe design parameters, namely probe diameter, an excitation coil and the number of GMR sensors in the array sensor is optimized using numerical optimization based on the desirability approach. The main benefits of DSECT can be seen in terms of its modularity and flexibility for the use of different types of magnetic transducers/sensors, and signals of a different nature with either digital or analog outputs, making it suited for the ECT probe design using an array of GMR magnetic sensors. A real-time application of the DSECT distributed system for ECT inspection can be exploited for the inspection of 70 mm carbon steel pipe. In order to predict the axial and circumference defect detection, a mathematical model is developed based on the technique known as response surface methodology (RSM). The inspection results of a carbon steel pipe sample with artificial defects indicate that the system design is highly efficient.
Fulltext The associations between behavioral-psychological symptoms of dementia (BPSD) and coping strategy, burden of care and personality style among low-income caregivers of patients with dementia

Baharudin AD, Din NC, Subramaniam P, Razali R

BMC Public Health, 2019 Jun 13;19(Suppl 4):447.
PMID: 31196141 DOI: 10.1186/s12889-019-6868-0

BACKGROUND: The main aim of this study was to determine the association between Behavioral and Psychological Symptoms of Dementia (BPSD) and caregiver burden, and the mediating role of coping strategy and personality style of caregivers to patients with dementia (PWD).
METHODS: This cross-sectional study was conducted among 202 caregivers to PWD in home-based settings. Recruited caregivers were administered questionnaires regarding BPSD which was measured using Neuropsychiatric Inventory-Questionnaire (NPI-Q), caregiver burden using Zarit Burden Interview (ZBI), Brief COPE for coping strategies and Big-Five Inventory which measured personality traits.
RESULTS: Majority of the caregivers were female (71.3%), aged 50 and above (55%), single (46%), married (43.6%), working full time (45%) while the rest work part time (22.3%), unemployed (7.4%) and retiree (25.2%), and majority were parents (58.9%) and spouse (18.3%). The duration of caregiving was less than a year (33.7%) while the rest are more than a year. Results demonstrated that the most frequent types of BPSD exhibited by PWD was irritability, followed by apathy and agitation. All of the types of BPSD showed to be significantly correlated to caregiver burden except for anxiety, elation and appetite. Of personality traits, only conscientiousness was found to mediate the relationship between BPSD and caregiver burden (p
The use of essential oils in atopic dermatitis: a review

Azhari H, Ng SF, Mohd Razali R, Loo HL

Curr Med Res Opin, 2024 May;40(5):753-763.
PMID: 38625386 DOI: 10.1080/03007995.2024.2340734

Atopic dermatitis (AD) has become a common childhood disease that affects a large number of children worldwide and has become a chronic skin disease that causes huge economical and psychological damage to the whole family. Despite the use of steroids, immunosuppressants, and various topical preparation, the prognosis is still poor. Hence, this review aimed to explore the potential of using essential oils (EO) as an active ingredient in managing AD. The review was completed by using Pubmed, Scopus, and Medline to search for relevant articles that study the pathophysiology of AD, the properties of EO, the use of EO in managing AD, and the suitable advanced formulation to incorporate EO. From the review conducted, it was concluded that EO have huge potential in managing AD and can be used as complimentary therapeutic agents in AD treatment. Scientists and industries should venture into commercializing more topical products with EO to help manage AD more effectively.
Fulltext Homozygous familial hypercholesterolemia

Alicezah MK, Razali R, Rahman T, Hoh BP, Suhana NH, Muid S, et al.

Malays J Pathol, 2014 Aug;36(2):131-7.
PMID: 25194536 MyJurnal

We report a rare case of homozygous familial hypercholesterolemia (HoFH), a 22-year-old Malay woman who presented initially with minor soft tissue injury due to a cycling accident. She was then incidentally found to have severe xanthelasma and hypercholesterolemia (serum TC 15.3 mmol/L and LDL-C 13.9 mmol/L). She was referred to the Specialized Lipid Clinic and was diagnosed with familial hypercholesterolemia (FH) based on the Simon Broome (SB) diagnostic criteria. There was a family history of premature coronary heart disease (CHD) in that three siblings had sudden cardiac death, and of consanguineous marriage in that her parents are cousins. DNA screening of LDLR and APOB genes was done by Polymerase Chain Reaction (PCR), followed by Denaturing High Performance Liquid Chromatography (DHPLC). Homozygous mutation C255S in Exon 5 of her LDLR gene was found. There was no mutation was found in Exon 26 and Exon 29 of the APOB gene. This report is to emphasize the importance of identifying patients with FH and cascade screening through established diagnostic criteria and genetic studies in order to ensure early detection and early treatment intervention to minimize the risk of developing CHD and related complications.
Relationships between social support and depression, and quality of life of the elderly in a rural community in Malaysia

Ibrahim N, Din NC, Ahmad M, Ghazali SE, Said Z, Shahar S, et al.

Asia Pac Psychiatry, 2013 Apr;5 Suppl 1:59-66.
PMID: 23857839 DOI: 10.1111/appy.12068

INTRODUCTION: This study aimed to examine the role of social support and depression in predicting the quality of life among the elderly living in a rural Federal Land Development Authority (FELDA) community in Malaysia.
METHODS: A total of 162 elderly settlers of FELDA Sungai Tengi, aged 60 years and above, were selected by universal sampling method in this cross-sectional study. Three standardized instruments - the 12-item Short Form (SF-12), 15-item Geriatric Depression Scale (GDS-15) and Medical Outcome Study Social Support (MOS-Social Support) - were used to assess for quality of life, depression and social support.
RESULTS: Quality of life of the elderly people in this community was high, especially in terms of physical components as compared to mental components. The mean scores for emotional role in the SF-12 was relatively the highest (90.74 ± 21.59) with social functioning being the lowest (30.35 ± 22.29). The results also showed that the mean value was higher for physical component summary (74.40) as compared to mental component summary (51.51). Approximately 23.5% suffered mild depression and only 2.5% had severe depression.
DISCUSSION: This study showed that the elderly FELDA settlers have a high quality of life, mainly on the physical components of life and low rate of severe depression, a positive indicator of their psychological well-being. Social support in the form of emotional/informational support, and depression were significant factors related to their good quality of life.
KEYWORDS: depression; elderly; quality of life; rural community; social support
Study site; FELDA Sungai Tengi, Selangor, Malaysia
Device, Questionnaire & Scale: Short Form Health Survey (SF-12); Geriatric Depression Scale (GDS-15; Medical Outcome Study Social Support (MOS-Social Support)
Phases of female sexual response cycle among Malaysian women with infertility: a factor analysis study

Seen Heng Y, Sidi H, Nik Jaafar NR, Razali R, Ram H

Asia Pac Psychiatry, 2013 Apr;5 Suppl 1:50-4.
PMID: 23857837 DOI: 10.1111/appy.12044

This cross-sectional study aimed to determine the construct of the phases of the female sexual response cycle (SRC) among women attending an infertility clinic in a Malaysian tertiary center.

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