MyMedR

Displaying publications 1 - 20 of 37 in total

Abstract:

Sort:

Fulltext Psychiatric presentation of Huntington's disease in a Malaysian family

Chin CN, S'ng KH, Philip G, Rosdinom R, Wahidah A

Med J Malaysia, 1996 Mar;51(1):153-6.
PMID: 10968000

A 32-year-old Chinese lady presented to the Psychiatric Clinic with a history of change in personality for 2 years and abnormal movements for a year. After thorough investigations and observation a diagnosis of Huntington's Disease was made. Her elder brother was traced and found to have Huntington's Disease as well. He had a long standing history of antisocial behaviour and substance abuse long before the onset of the choreiform movements. Her younger brother also has choreiform movements for the last 2 years and had recent change in personality. Their mother also had abnormal movements and was recorded to be depressed and attempted suicide. The maternal grandfather had a mental illness and was warded at a mental institution till his death in 1942. Psychiatric presentation of Huntington's Disease in this Malaysian family is prominent and preceded the characteristic movements in the present generation.

Matched MeSH terms: Huntington Disease/psychology*
Psychological reactions in disease and their management

Ngui PW

Nurs J Singapore, 1978 Nov;18(2):124-6.
PMID: 253240
Matched MeSH terms: Disease/psychology*
Optimal set of EEG features for emotional state classification and trajectory visualization in Parkinson's disease

Yuvaraj R, Murugappan M, Ibrahim NM, Sundaraj K, Omar MI, Mohamad K, et al.

Int J Psychophysiol, 2014 Dec;94(3):482-95.
PMID: 25109433 DOI: 10.1016/j.ijpsycho.2014.07.014

In addition to classic motor signs and symptoms, individuals with Parkinson's disease (PD) are characterized by emotional deficits. Ongoing brain activity can be recorded by electroencephalograph (EEG) to discover the links between emotional states and brain activity. This study utilized machine-learning algorithms to categorize emotional states in PD patients compared with healthy controls (HC) using EEG. Twenty non-demented PD patients and 20 healthy age-, gender-, and education level-matched controls viewed happiness, sadness, fear, anger, surprise, and disgust emotional stimuli while fourteen-channel EEG was being recorded. Multimodal stimulus (combination of audio and visual) was used to evoke the emotions. To classify the EEG-based emotional states and visualize the changes of emotional states over time, this paper compares four kinds of EEG features for emotional state classification and proposes an approach to track the trajectory of emotion changes with manifold learning. From the experimental results using our EEG data set, we found that (a) bispectrum feature is superior to other three kinds of features, namely power spectrum, wavelet packet and nonlinear dynamical analysis; (b) higher frequency bands (alpha, beta and gamma) play a more important role in emotion activities than lower frequency bands (delta and theta) in both groups and; (c) the trajectory of emotion changes can be visualized by reducing subject-independent features with manifold learning. This provides a promising way of implementing visualization of patient's emotional state in real time and leads to a practical system for noninvasive assessment of the emotional impairments associated with neurological disorders.

Matched MeSH terms: Parkinson Disease/psychology*
Factor Structure of Hospital Anxiety and Depression Scale in Malaysian patients with coronary artery disease

Kaur S, Zainal NZ, Low WY, Ramasamy R, Sidhu JS

Asia Pac J Public Health, 2015 May;27(4):450-60.
PMID: 24807887 DOI: 10.1177/1010539514533719

The Hospital Anxiety and Depression Scale (HADS) is a common screening instrument used to determine the levels of anxiety and depression experienced by a patient and has been extensively used in patients with coronary artery disease (CAD). This study aimed to establish the factor structure of HADS in a Malaysian sample of 189 patients with CAD. Factor analysis of HADS using principal component analysis with varimax rotation yielded 3 factors. Confirmatory factor analysis supported the use of HADS in assessing 3 distinct dimensions of psychological distress--namely, anxiety, anhedonia, and psychomotor retardation. The HADS showed good internal consistency and was found to be a valid measure of psychological distress among Malaysian patients with CAD. However, low mean scores on the original 2 factors--that is, anxiety and depression--and also on the 2 depression subscales--anhedonia and psychomotor retardation--suggests that the recommended cutoff score to screen for psychological distress among CAD patients be reevaluated. Further research to determine the generalizability and consistency for the tridimensional structure of the HADS in Malaysia is recommended.

Matched MeSH terms: Coronary Artery Disease/psychology*
Fulltext On the analysis of EEG power, frequency and asymmetry in Parkinson's disease during emotion processing

Yuvaraj R, Murugappan M, Mohamed Ibrahim N, Iqbal M, Sundaraj K, Mohamad K, et al.

Behav Brain Funct, 2014;10:12.
PMID: 24716619 DOI: 10.1186/1744-9081-10-12

While Parkinson's disease (PD) has traditionally been described as a movement disorder, there is growing evidence of disruption in emotion information processing associated with the disease. The aim of this study was to investigate whether there are specific electroencephalographic (EEG) characteristics that discriminate PD patients and normal controls during emotion information processing.

Matched MeSH terms: Parkinson Disease/psychology
Emotion processing in Parkinson's disease: an EEG spectral power study

Yuvaraj R, Murugappan M, Omar MI, Ibrahim NM, Sundaraj K, Mohamad K, et al.

Int J Neurosci, 2014 Jul;124(7):491-502.
PMID: 24168328 DOI: 10.3109/00207454.2013.860527

Although an emotional deficit is a common finding in Parkinson's disease (PD), its neurobiological mechanism on emotion recognition is still unknown. This study examined the emotion processing deficits in PD patients using electroencephalogram (EEG) signals in response to multimodal stimuli.

Matched MeSH terms: Parkinson Disease/psychology
Determination of the longitudinal validity and minimally important difference of the 8-item Parkinson's Disease Questionnaire (PDQ-8)

Luo N, Tan LC, Zhao Y, Lau PN, Au WL, Li SC

Mov Disord, 2009 Jan 30;24(2):183-7.
PMID: 18972545 DOI: 10.1002/mds.22240

The aim of our study was to assess the longitudinal validity of the 8-item Parkinson's Disease Questionnaire (PDQ-8) in terms of responsiveness and test-retest reliability and to determine the minimally important difference (MID) for PDQ-8 using the anchor-based approach in Asians with Parkinson's disease (PD). A consecutive sample of PD patients attending a tertiary neuroscience clinic in Singapore completed the English or Chinese version of PDQ-8 twice during two different clinic visits. During the second visit, patients were also asked to rate their changes in health in general, PD severity, and overall impact of PD since at the time of their first visit 1 year ago using a 5-point response scale. A total of 96 patients participated in the study. For patients who reported changed conditions in the second visit, responsiveness measured by Cohen's effect size, standardized response mean, and Guyatt's responsiveness index ranged from 0.21 to 0.68. The intraclass correlation coefficient values calculated using patients reporting no change in health or PD status ranged from 0.64 to 0.76. The mean changed PDQ-8 summary index score in patients who reported that their health or PD status worsened only "a little bit" ranged from 5.8 to 7.4 points. Our current results show that PDQ-8 is a longitudinally reliable and responsive measure for assessing the health-related quality of life in patients with PD. The MID of the PDQ-8 estimated in the study will further support the use of this instrument in both clinical research and practice.

Matched MeSH terms: Parkinson Disease/psychology*
Lay perceptions of current and future health, the causes of illness, and the nature of recovery: explaining health and illness in Malaysia

Swami V, Arteche A, Chamorro-Premuzic T, Maakip I, Stanistreet D, Furnham A

Br J Health Psychol, 2009 Sep;14(Pt 3):519-40.
PMID: 18922210 DOI: 10.1348/135910708X370781

This study examined beliefs about the causes and determinants of health, illness, and recovery in an opportunistic sample from Malaysia. In all, 371 women and 350 men completed the Health and Illness Scale, a 124-item scale that examined beliefs about current and future health, and beliefs about the causes of illness and recovery. Each of the four subscales of the Health Illness Scale were factor analysed to reveal the underlying structure. Results showed the emergence of a number of distinct factors in the case of each subscale, of which environmental, life-style, psychological, religious, and fate-related factors were fairly stable across subscales. Results also showed a number of differences in beliefs between religious groups, and that religiosity and sex were the strongest predictors of beliefs across the four subscales. The results are discussed in terms of the available cross-cultural literature on lay beliefs about health.

Matched MeSH terms: Disease/psychology*
Belief and disbelief in the existence of genetic risk factors for suicide: cross-cultural comparisons

Voracek M

Psychol Rep, 2007 Dec;101(3 Pt 2):1189-95.
PMID: 18361135

There is evidence for widespread disbelief in the genetics of suicide, despite recent research progress in this area and convergent evidence supporting a role for genetic factors. This study analyzed the beliefs held in 8 samples (total N = 1224) of various types (psychology, medical, and various undergraduates, psychology graduates, and the general population) from 6 countries located on 3 continents (Austria, Canada, Malaysia, Romania, United Kingdom, and the USA). Endorsement rates for the existence of genetic risk factors for suicide ranged from 26% and 30% (Austrian psychology undergraduates and general population) to around 50% (psychology undergraduates in the USA and United Kingdom). In the 8 samples, respondents' sex, age, religiosity, political orientation, and other demographic variables were, for the most part, unrelated, but overall knowledge about suicide throughout was related positively to endorsement rates. Consistent with previous research, across a considerable variety of sample types and cultural settings there was no evidence for a clear majority believing in genetic bases for suicide.

Matched MeSH terms: Genetic Predisposition to Disease/psychology*
Fulltext Diagnosis and management of Alzheimer's disease--an update

Srinivas P

Med J Malaysia, 1999 Dec;54(4):541-9; quiz 550.
PMID: 11072482

Alzheimer's disease (AD) has become recognised as a major cause of morbidity and mortality in the ageing population worldwide. Over 20 million people worldwide are affected by AD, which ensures that the disease imposes a major economic burden. Alzheimer's disease is a progressive neurodegenerative disorder with characteristic clinical and neuropathological features. Neurofibrillary tangles, neuritic plaques and amyloid angiopathy occur in varying severity in brains of patient's with Alzheimer's disease. Biological markers of AD allowing an early definitive premorbid diagnoses are currently not available. Memory loss for recent events is invariable and often the earliest prominent symptom. Language disorders, difficulties with complex tasks, depression, psychotic symptoms and behavioral changes are other common manifestations of AD. Diagnosis involves the early detection of cognitive decline and ruling out other causes of dementia like vascular dementia, Lewy body dementia, fronto-temporal degeneration or reversible causes like hypothyroidism. Acetylcholinesterase inhibitors have shown to be effective in mild to moderate AD in improving the cognitive function of patients in clinical trials. Caregiver intervention programs have considerable potential to improve both the caregiver and patient quality of life.

Matched MeSH terms: Alzheimer Disease/psychology
Fulltext Disease and risk factor perception among patients with coronary artery disease in Kuala Terengganu

Khalid Y, Malina O, Rofiah A, Latinah M, Thahirahtul AZ, Zaridah MS, et al.

Med J Malaysia, 1994 Sep;49(3):205-8.
PMID: 7845266

One hundred consecutive patients with coronary heart disease attending the Physician Clinic, Kuala Terengganu General Hospital self-completed a questionnaire on their awareness of the coronary risk factors and their perception of their disease. Seventy-one subjects were males. Twenty-seven subjects had never had formal education and only 6 had completed tertiary education. Whilst 52% considered themselves as having less than 25% knowledge about their disease, many were aware of hypercholesterolaemia, emotional stress, inadequate exercise and smoking as risk factors for coronary heart disease. Diabetes and family history were less known as coronary risk factors. Despite their awareness of the risk factors, though, the subjects failed to control these. For example, smoking was prevalent and their awareness of the harmful effects of smoking did not seem to deter them from this habit. Further, formal education did not seem to influence positive health behaviour. In terms of disease perception, the subjects tended to believe that their illness could be cured. Eighty subjects expected a cure from their doctors. Sixty-three subjects wanted more explanation of their illness from their doctors. These findings suggest that efforts should be made to translate patients' awareness of their illness to appropriate health behaviour, and perhaps doctors could achieve this by spending more time explaining to the patients, and educating them.

Matched MeSH terms: Coronary Disease/psychology*
Misdiagnosis leads to Iatrogenesis

Chin AV

Med J Malaysia, 2019 08;74(4):359-362.
PMID: 31424053

No abstract provided.

Matched MeSH terms: Lewy Body Disease/psychology
Work right to right work: An automythology of chronic illness and work

Vijayasingham L

Chronic Illn, 2018 03;14(1):42-53.
PMID: 28441882 DOI: 10.1177/1742395317699450

Objectives Chronic illness is known to disrupt and redirect the usual course of work trajectories. This article aims to portray the longitudinal course of negotiating work after multiple sclerosis. Methods Using therapy and personal journals to reconstruct memories and experience, an autoethnography is produced and narrated within Campbell's "Hero's Journey" automythology framework. Results The narrative highlights the intrasubjectivity of illness meaning-the changing internal meaning-making and external behavior and decision-making dynamics. The journey of being inhibited to "Work Right", to "Looking for the Right" and ultimately, finding "Right Work" is charted; portrayed as a bittersweet maneuver to achieve work-illness equilibrium. Discussion This journey traverses a spectrum of negative coping-the exhibition of deviant work behaviors, disengagement and depression; to recalibration and renewal; culminating in living the "new normal", and finding moral and meaningful work engagements. Life trajectories with chronic illness are often skewed and redirected; but longitudinal narratives of normalization and coping also highlight the pursuits to secure and maintain a life of meaning and value.

Matched MeSH terms: Chronic Disease/psychology*
The effect of mobile messaging apps on cardiac patient knowledge of coronary artery disease risk factors and adherence to a healthy lifestyle

Tang YH, Chong MC, Chua YP, Chui PL, Tang LY, Rahmat N

J Clin Nurs, 2018 Dec;27(23-24):4311-4320.
PMID: 29777560 DOI: 10.1111/jocn.14538

AIMS: To determine the effect mobile messaging apps on coronary artery disease patient knowledge of and adherence to a healthy lifestyle.
BACKGROUND: Due to the increasing incidence of coronary artery disease in recent years, interventions targeting coronary artery disease risk factors are urgent public priorities. The use of mobile technology in healthcare services and medical education is relatively new with promising future prospects.
DESIGN: This study used a quasiexperimental design that included pre- and posttest for intervention and control groups.
METHODS: The study was conducted from January-April 2017 with both intervention and control groups, in a teaching hospital in Klang Valley. Convenience sampling was used with inclusive criteria in choosing the 94 patients with coronary artery disease (intervention group: 47 patients; control group: 47 patients). The pretest was conducted as a baseline measurement for both groups before they were given standard care from a hospital. However, only the intervention group was given a daily information update via WhatsApp for 1 month. After 1 month, both groups were assessed with a posttest.
RESULTS: The split-plot ANOVA analysis indicates that there is a significant and positive effect of the intervention on coronary artery disease patients' knowledge on coronary artery disease risk factors [F(1, 92) = 168.15, p

Matched MeSH terms: Coronary Artery Disease/psychology*
Quality of Life and Caregivers' Burden of Parkinson's Disease

Rajiah K, Maharajan MK, Yeen SJ, Lew S

Neuroepidemiology, 2017;48(3-4):131-137.
PMID: 28728161 DOI: 10.1159/000479031

AIM: This study focused on the impact of the clinical features on the quality of life (QoL) of Parkinson's disease (PD) patients and of their caregivers.
METHODS: This study included PD patients along with their caregivers and was undertaken at the Malaysian Parkinson's Disease Association from June 2016 to November 2016. Clinical features of PD patients were assessed using the Movement Disorder Society revised Unified Parkinson Disease Rating Scale; the Hoehn and Yahr stage and the Schwab and England Activities of Daily Living Scale were used to assess the severity and the ability of PD patients respectively. QoL of PD patients was measured using the Parkinson's Disease Questionnaire-39 (PDQ-39). The revised version of the Zarit Burden Interview assessed caregiver burden.
RESULTS: At least one of the clinical features affected PD patients' QoL, and at least one of the QoL domains affected the caregivers' burden. Clinical features "saliva and drooling" and "dyskinesia" explained 29% of variance in QoL of PD patients. The QoL domains "stigma," along with "emotional well-being" explained 48.6% of variance in caregivers' burden.
CONCLUSIONS: The clinical features "saliva and drooling" and "dyskinesia" impacted the QoL of PD patients, and the QoL domains "stigma" and "emotional well-being" of PD patients impacted their caregivers' burden.

Matched MeSH terms: Parkinson Disease/psychology
Memory and time: Backward and forward telescoping in Alzheimer's disease

El Haj M, Janssen SMJ, Antoine P

Brain Cogn, 2017 10;117:65-72.
PMID: 28629646 DOI: 10.1016/j.bandc.2017.06.005

Backward and forward telescoping are opposite timing biases. The former refers to misattributing events to earlier dates, whereas the latter refers to misattributing events to later dates. The present study investigated both biases in participants with Alzheimer's Disease (AD) and healthy older adults, matched on age, sex, and education level. Participants were asked to recall the years when five remote and five recent public events had occurred. They were also assessed with a cognitive and clinical battery that included a context memory task on which they had to associate letters and locations. Results showed backward telescoping for recent events and forward telescoping for remote events in AD participants and older adults. Furthermore, poorer context recall was observed in AD participants and older adults displaying backward telescoping than in those displaying forward telescoping. These findings suggest an association between the amount of contextual information recalled and the direction of the timing bias. Backward telescoping can be associated with deficiencies in retrieving context characteristics of events, which have been associated with retrograde amnesia and pathological changes to the hippocampus in AD.

Matched MeSH terms: Alzheimer Disease/psychology*
Religion, Spirituality and Risk of Coronary Heart Disease: A Matched Case-Control Study and Meta-Analysis

Hemmati R, Bidel Z, Nazarzadeh M, Valadi M, Berenji S, Erami E, et al.

J Relig Health, 2019 Aug;58(4):1203-1216.
PMID: 30350244 DOI: 10.1007/s10943-018-0722-z

Although the association between religion/spirituality (R/S) and psychological outcomes is well established, current understanding of the association with cardiovascular disease remains limited. We sought to investigate the association between Islamic R/S and coronary heart disease (CHD), and place these findings in light of a meta-analysis. In this case-control study, 190 cases with non-fatal CHD were identified and individually matched with 383 hospital-based controls. R/S was measured by self-administered 102 items questionnaire. A tabular meta-analysis was performed of observational studies on R/S (high level versus low level) and CHD. In addition, a dose-response meta-analysis was conducted using generalized least-squares regression. Participants in the top quartile had decreased odds of CHD comparing to participants in the lowest quartile of religious belief (OR 0.20, 95% confidence interval (CI) 0.06-0.59), religious commitment (OR 0.36, CI 95% 0.13-0.99), religious emotions (OR 0.39, CI 95% 0.18-0.87), and total R/S score (OR 0.30, CI 95% 0.13-0.67). The meta-analysis study showed a significant relative risk of 0.88 (CI 95% 0.77-1.00) comparing individuals in high level versus low level of R/S. In dose-response meta-analysis, comparing people with no religious services attendance, the relative risks of CHD were 0.77 (CI 95% 0.65-0.91) for one times attendance and 0.27 (CI 95% 0.11-0.65) for five times attendance per month. R/S was associated with a significantly decreased risk of CHD. The possible causal nature of the observed associations warrants randomized clinical trial with large sample size.

Matched MeSH terms: Coronary Disease/psychology
The forward-backward and dual-panel translation methods are comparable in producing semantic equivalent versions of a heart quality of life questionnaire

Lee WL, Chinna K, Lim Abdullah K, Zainal Abidin I

Int J Nurs Pract, 2019 Feb;25(1):e12715.
PMID: 30515964 DOI: 10.1111/ijn.12715

AIM: To investigate semantic equivalence between two translated versions of the heart quality of life (HeartQoL) questionnaire produced by the forward-backward and dual-panel methods.
METHODS: The forward-backward and dual-panel versions of HeartQoL were self-administered among 60 participants who met the inclusion criteria of being a native Bahasa Malaysia-speaking Malay, aged 18 and older, having an indexed diagnosis of ischaemic heart disease and being cognitively fit. The administration sequence of the two versions was randomized. Additionally, three sociolinguists, who were blinded to translation processes and survey findings, rated the translated versions against the source version on three aspects of semantic equivalence.
RESULTS: Textual content in both translated versions was considerably similar (n = 9/14 items, ≈64%). The overall results from weighted kappa, raw agreement, intraclass correlations, and Wilcoxon signed-rank as well as experts' ratings were confirmative of semantic equivalence between the forward-backward and dual-panel versions of the HeartQoL. However, some mixed findings were indicative of potential gaps in both translated versions against the source version.
CONCLUSION: Both the forward-backward and dual-panel methods produced semantically equivalent versions of HeartQoL; but translation alone is insufficient to narrow the subtle gaps caused by differences in culture and linguistic style.

Matched MeSH terms: Coronary Disease/psychology
Fulltext Translation, adaptation and validation of two versions of the Chronic Liver Disease Questionnaire in Malaysian patients for speakers of both English and Malay languages: a cross-sectional study

Khairullah S, Mahadeva S

BMJ Open, 2017 05 25;7(5):e013873.
PMID: 28550020 DOI: 10.1136/bmjopen-2016-013873

OBJECTIVE: We aimed to adapt, translate and validate the Chronic Liver Disease Questionnaire (CLDQ) in Malaysian patients with chronic liver diseases of various aetiologies.
SETTING: Tertiary level teaching institution in Malaysia.
PARTICIPANTS: The validation process involved 211 adult patients (English language n=101, Malay language n=110) with chronic liver disease. Characteristics of the study subjects were as follows: mean (SD) age was 56 (12.8) years, 58.3% were male and 41.7% female. The inclusion criteria were patients 18 years or older with chronic hepatitis and/or liver cirrhosis of any aetiology. The exclusion criteria were as follows: presence of hepatic encephalopathy, ongoing treatment with interferon and presence of other chronic conditions that have an impact on health-related quality of life (HRQOL).
METHODS: A cross-sectional study was conducted. Cultural adaptation of the English version of the CLDQ was performed, and a Malay version was developed following standard forward-backward translation by independent native speakers. Psychometric properties of both versions were determined by assessing their internal consistency, test-retest reliability and discriminant and convergent validity.
RESULTS: Cronbach's alpha for internal consistency across the various domains of the CLDQ was 0.95 for the English version and 0.92 for the Malay version. Test-retest analysis showed excellent reliability with an intraclass correlation coefficient of 0.89 for the English version and 0.93 for the Malay version. The average scores of both the English and Malay versions of the CLDQ demonstrated adequate discriminant validity by differentiating between non-cirrhosis (English 6.3, Malay 6.1), compensated cirrhosis (English 5.6, Malay 6.0) and decompensated cirrhosis (English 5.1, Malay 4.9) (p<0.001). Convergent validity showed that correlation was fair between the English (ρ=0.59) and Malay (p=0.47) CLDQ versions with the EQ-5D, a generic HRQOL instrument.
CONCLUSION: The English and Malay versions of the CLDQ are reliable and valid disease-specific instruments for assessing HRQOL in Malaysian patients with chronic liver disease.

Matched MeSH terms: Chronic Disease/psychology
Fulltext APOE, TOMM40, and sex interactions on neural network connectivity

Li T, Pappas C, Le ST, Wang Q, Klinedinst BS, Larsen BA, et al.

Neurobiol Aging, 2022 Jan;109:158-165.
PMID: 34740077 DOI: 10.1016/j.neurobiolaging.2021.09.020

The Apolipoprotein E ε4 (APOE ε4) haplotype is the strongest genetic risk factor for late-onset Alzheimer's disease (AD). The Translocase of Outer Mitochondrial Membrane-40 (TOMM40) gene maintains cellular bioenergetics, which is disrupted in AD. TOMM40 rs2075650 ('650) G versus A carriage is consistently related to neural and cognitive outcomes, but it is unclear if and how it interacts with APOE. We examined 21 orthogonal neural networks among 8,222 middle-aged to aged participants in the UK Biobank cohort. ANOVA and multiple linear regression tested main effects and interactions with APOE and TOMM40 '650 genotypes, and if age and sex acted as moderators. APOE ε4 was associated with less strength in multiple networks, while '650 G versus A carriage was related to more language comprehension network strength. In APOE ε4 carriers, '650 G-carriage led to less network strength with increasing age, while in non-G-carriers this was only seen in women but not men. TOMM40 may shift what happens to network activity in aging APOE ε4 carriers depending on sex.

Matched MeSH terms: Alzheimer Disease/psychology

Filters

Please provide feedback to Administrator ([email protected])

External Links