Research Topics
Species | K SimSummaryAffiliation: Institute of Mental Health Country: Singapore Publications
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Detail Information
Publications
ARVCF genetic influences on neurocognitive and neuroanatomical intermediate phenotypes in Chinese patients with schizophreniaKang Sim
Department of General Psychiatry, Woodbridge Hospital Institute of Mental Health, Singapore
J Clin Psychiatry 73:320-6. 2012..We hypothesized that ARVCF gene haplotypes influence caudate nucleus volume, fractional anisotropy, and neurocognitive functioning in schizophrenia...
Psychiatric comorbidity in first episode schizophrenia: a 2 year, longitudinal outcome studyKang Sim
Department of Adult Psychiatry, Woodbridge Hospital Institute of Mental Health, 10, Buangkok View, Singapore 539747, Singapore
J Psychiatr Res 40:656-63. 2006....
Physical comorbidity, insight, quality of life and global functioning in first episode schizophrenia: a 24-month, longitudinal outcome studyKang Sim
Department of Adult Psychiatry, Woodbridge Hospital Institute of Mental Health, and Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
Schizophr Res 88:82-9. 2006....
Newer antidepressant drug use in East Asian psychiatric treatment settings: REAP (Research on East Asia Psychotropic Prescriptions) StudyKang Sim
Institute of Mental Health Woodbridge Hospital, Singapore
Br J Clin Pharmacol 63:431-7. 2007..We compared patients given newer and older antidepressants to test the hypothesis, suggested in the literature, that use of newer antidepressants is associated with treatment settings rather than specific diagnostic categories...
A 24-month prospective outcome study of first-episode schizophrenia and schizoaffective disorder within an early psychosis intervention programKang Sim
Department of Adult Psychiatry, Institute of Mental Health Woodbridge Hospital, Singapore
J Clin Psychiatry 68:1368-76. 2007..We tested the hypothesis that patients with first-episode schizoaffective disorder had better clinical and functional outcomes compared to patients with first-episode schizophrenia...
White matter abnormalities and neurocognitive deficits associated with the passivity phenomenon in schizophrenia: a diffusion tensor imaging studyKang Sim
Department of General Psychiatry, Woodbridge Hospital, Institute of Mental Health, 10, Buangkok View, 539747 Singapore
Psychiatry Res 172:121-7. 2009..The findings suggest distributed involvement of cortical and subcortical regions underlying passivity and support the notion of neural network models underlying specific psychiatric symptoms such as passivity...
Low doses of antipsychotic drugs for hospitalized schizophrenia patients in East Asia: 2004 vs. 2001Kang Sim
Institute of Mental Health Woodbridge Hospital, Singapore
Int J Neuropsychopharmacol 12:117-23. 2009..001) and depot antipsychotics (p=0.009). Conservative dosing of APDs was increasingly prevalent in East Asia. Our findings suggest characteristics of patients who may be particularly likely to require low antipsychotic doses...
High-dose antipsychotic use in schizophrenia: a comparison between the 2001 and 2004 Research on East Asia Psychotropic Prescription (REAP) studiesKang Sim
Institute of Mental Health Woodbridge Hospital, Singapore
Br J Clin Pharmacol 67:110-7. 2009....
Psychosocial and coping responses within the community health care setting towards a national outbreak of an infectious diseaseKang Sim
Department of Adult Psychiatry, Woodbridge Hospital Institute of Mental Health, Singapore, Singapore
J Psychosom Res 68:195-202. 2010....
Integrated genetic and genomic approach in the SingaporeTranslational and Clinical Research in Psychosis Study: an overviewKang Sim
Department of General Psychiatry, Woodbridge Hospital Institute of Mental Health Research Division, Singapore
Early Interv Psychiatry 5:91-9. 2011..This article seeks to provide an overview on what our group has embarked on--to elucidate genetic risk factors for schizophrenia within the Chinese ethnic group...
Adjunctive mood stabilizer treatment for hospitalized schizophrenia patients: Asia psychotropic prescription study (2001-2008)Kang Sim
Institute of Mental Health Woodbridge Hospital, Singapore
Int J Neuropsychopharmacol 14:1157-64. 2011..This practice parallels findings in other countries and illustrates ongoing tension between evidence-based practice vs. individualized, empirical treatment of psychotic disorders...
Testing models of thalamic dysfunction in schizophrenia using neuroimagingK Sim
Schizophrenia and Bipolar Disorder Program, McLean Hospital Harvard Medical School, Belmont, MA 02478, USA
J Neural Transm 113:907-28. 2006....
Case formulation in psychotherapy: revitalizing its usefulness as a clinical toolKang Sim
McLean Hospital Harvard Medical School, Belmont, MA 02467, USA
Acad Psychiatry 29:289-92. 2005....
Psychiatric comorbidity in first episode psychosis: the Early Psychosis Intervention Program (EPIP) experienceK Sim
Department of Early Psychosis Intervention, Woodbridge Hospital and Institute of Mental Health, Singapore
Acta Psychiatr Scand 109:23-9. 2004..To determine the prevalence rates of psychiatric comorbidity in a hospitalized Asian patient group with first episode psychosis and examine its clinical correlates...
The psychological impact of SARS: a matter of heart and mindKang Sim
Department of Adult Psychiatry III, Institute of Mental Health/Woodbridge Hospital, 10 Buangkok View, Singapore 539747
CMAJ 170:811-2. 2004
Depot antipsychotic use in schizophrenia: an East Asian perspectiveKang Sim
Institute of Mental Health Woodbridge Hospital, Singapore
Hum Psychopharmacol 19:103-9. 2004..Few studies have examined the use of depot antipsychotics in East Asian patients with schizophrenia. This study examined the prevalence of depot antipsychotic use and its clinical correlates...
Clinical correlates of antipsychotic polytherapy in patients with schizophrenia in SingaporeKang Sim
Woodbridge Hospital Institute of Mental Health, Singapore
Psychiatry Clin Neurosci 58:324-9. 2004..The high rate of antipsychotic polytherapy that appeared to be unrelated to current illness severity suggests that this practice may not consistently be based on rational therapeutic principles...
Thyroid dysfunction in chronic schizophrenia within a state psychiatric hospitalK Sim
Woodbridge Hospital and Institute of Mental Health, 10 Buangkok View, Singapore 539747
Ann Acad Med Singapore 31:641-4. 2002..We also hypothesize that raised thyroid hormones are associated with more severe psychopathology...
Antipsychotic polypharmacy in patients with schizophrenia: a multicentre comparative study in East AsiaKang Sim
Institute of Mental Health Woodbridge Hospital, Singapore
Br J Clin Pharmacol 58:178-83. 2004..This study seeks to examine the prevalence of antipsychotic polypharmacy in patients with schizophrenia and compare the differences between patients receiving one vs. those receiving more than one antipsychotic...
Severe acute respiratory syndrome-related psychiatric and posttraumatic morbidities and coping responses in medical staff within a primary health care setting in SingaporeKang Sim
Department of Adult Psychiatry, Woodbridge Hospital Institute of Mental Health, Singapore
J Clin Psychiatry 65:1120-7. 2004..We aimed to determine the level of psychological impact and coping styles among the medical staff in a primary health care setting...
High dose antipsychotic use in schizophrenia: findings of the REAP (research on east Asia psychotropic prescriptions) studyK Sim
Woodbridge Hospital Institute of Mental Health 10 Buangkok View, Singapore
Pharmacopsychiatry 37:175-9. 2004..Recent functional neuroimaging studies have found that the previous notion concerning the use of antipsychotic medication, especially in high doses, was unsupported and untenable...
High prevalence of psychiatric morbidity in a medical intensive care unitK Sim
Department of General Psychiatry, Woodbridge Hospital and Institute of Mental Health, Singapore
Singapore Med J 42:522-5. 2001..Nevertheless, it is hoped that the index of suspicion for psychiatric morbidity can be raised in order to optimise the clinical management of patients within this setting...
Subjective quality of life in first episode schizophrenia spectrum disorders with comorbid depressionKang Sim
Department of Early Psychosis Intervention, Woodbridge Hospital Institute of Mental Health, 10, Buangkok View, Singapore 539747, Singapore
Psychiatry Res 129:141-7. 2004..Alternative explanations are also possible, providing possible foci for psychological support and intervention...
Neurocognitive, clinical and functional correlates of subjective quality of life in Asian outpatients with schizophreniaPuay San Woon
Research Division, Institute of Mental Health Woodbridge Hospital, Singapore
Prog Neuropsychopharmacol Biol Psychiatry 34:463-8. 2010....
Health-related quality of life and psychiatric comorbidity in first episode psychosisKang Sim
Department of Early Psychosis Intervention, Woodbridge Hospital Institute of Mental Health, Singapore
Compr Psychiatry 46:278-83. 2005..This study seeks to evaluate the health-related QOL in patients with first episode psychosis and comparing those with psychiatric comorbidity to those without in an Early Psychosis Intervention Program...
Ministry of Health clinical practice guidelines: schizophreniaS Verma
Ang Mo Kio Polyclinic, Singapore
Singapore Med J 52:521-5; quiz 526. 2011..moh.gov. sg/mohcorp/publications.aspx?id=26138. The recommendations should be used with reference to the full text of the guidelines. Following this article are multiple choice questions based on the full text of the guidelines...
Duration of illness, regional brain morphology and neurocognitive correlates in schizophreniaWai Yen Chan
Research Division, Institute of Mental Health, Singapore
Ann Acad Med Singapore 38:388-8. 2009....
Safety and efficacy of long-acting injectable risperidone in patients with schizophrenia spectrum disorders: a 6-month open-label trial in Asian patientsSwapna Verma
Early Psychosis Intervention Programme, Institute of Mental Health Woodbridge Hospital, Singapore
Hum Psychopharmacol 25:230-5. 2010..LAR was effective in improving symptom severity within the first month of starting treatment. However, significant increases in weight and plasma levels of fasting glucose and cholesterol raise concern about metabolic side effects...
Hippocampal volumes in first-episode psychosisSwapna Verma
Department of Early Psychosis Intervention, Institute of Mental Health Woodbridge Hospital, Singapore
J Neuropsychiatry Clin Neurosci 21:24-9. 2009..Our results suggest that smaller hippocampal volumes are present even in early stages of the illness...
Hippocampal and parahippocampal volumes in schizophrenia: a structural MRI studyKang Sim
Schizophrenia and Bipolar Disorders Program, McLean Hospital Harvard Medical School, Mill Street, Belmont, MA, 02478, USA
Schizophr Bull 32:332-40. 2006..The finding of smaller medial temporal lobe volumes in the absence of regional specificity has important implications for studying the functional role of the hippocampus and surrounding cortical regions in schizophrenia...
White matter abnormalities in first-episode schizophrenia: a combined structural MRI and DTI studyWai Yen Chan
Research Division, Institute of Mental Health, Singapore
Schizophr Res 119:52-60. 2010..Further research is needed to better understand the nature of these white matter changes and its progression in schizophrenia over time...
Hippocampal-cortical structural connectivity disruptions in schizophrenia: an integrated perspective from hippocampal shape, cortical thickness, and integrity of white matter bundlesAnqi Qiu
Division of Bioengineering, National University of Singapore, Singapore
Neuroimage 52:1181-9. 2010..Our findings suggested that aberrant structural hippocampal-cortical connectivities may serve as a marker of the illness and provide further structural evidence to support the notion of schizophrenia as a disorder of brain connectivity...
Asymmetry of lexico-semantic processing in schizophrenia changes with disease progressionM Lam
Research Division, Institute of Mental Health, Singapore
Schizophr Res 134:125-30. 2012....
Cortical and subcortical white matter abnormalities in adults with remitted first-episode mania revealed by Tract-Based Spatial StatisticsWai Yen Chan
Research Division, Institute of Mental Health, Singapore
Bipolar Disord 12:383-9. 2010....
Psychotropic prescription practices in east Asia: looking back and peering aheadChay Hoon Tan
Department of Pharmacology, National University of Singapore, Singapore
Curr Opin Psychiatry 21:645-50. 2008..Pharmacogenetic studies in different ethnic groups are also reviewed...
Neurobiological evidence for thalamic, hippocampal and related glutamatergic abnormalities in bipolar disorder: a review and synthesisWan Xiu Dorcas Ng
Institute of Mental Health Woodbridge Hospital, 10, Buangkok View, Singapore 539747, Singapore
Neurosci Biobehav Rev 33:336-54. 2009..Overall, the emerging trends from these findings highlight the need for further research to unravel underlying neurobiological changes and clinical correlates of thalamic and hippocampal dysfunction in bipolar disorder...
Increased ratio of 2nd to 4th digit (2D:4D) in schizophreniaSimon Lowes Collinson
Department of Psychology, National University of Singapore, 117570, Singapore
Psychiatry Res 176:8-12. 2010..The effect was primarily seen in males consistent with a 'less masculinised' pattern and hypotheses suggesting that schizophrenia may be associated with an abnormality in prenatal circulating testosterone...
Combined analyses of thalamic volume, shape and white matter integrity in first-episode schizophreniaAnqi Qiu
Division of Bioengineering, National University of Singapore, Singapore
Neuroimage 47:1163-71. 2009....
Individual and familial characteristics of youths involved in street corner gangs in SingaporeC Kee
Institute of Mental Health, Singapore
J Adolesc 26:401-12. 2003..These findings diverge from anticipated familial correlates of antisocial activity in youths and were discussed with reference to cultural factors and their implications on prevention and intervention...
White matter abnormalities in bipolar disorder: insights from diffusion tensor imaging studiesSerene Heng
Institute of Mental Health, Woodbridge Hospital, 10 Buangkok View, Singapore
J Neural Transm 117:639-54. 2010..The emerging trends from these DTI findings underscore the importance of further research to unravel the underlying neural mechanisms and clinico-anatomical correlations involving white matter in BD...
Genetic association studies of glutamate, GABA and related genes in schizophrenia and bipolar disorder: a decade of advanceSuat Ying Tan Cherlyn
Institute of Mental Health Woodbridge Hospital, 10 Buangkok View, Singapore 539747, Singapore
Neurosci Biobehav Rev 34:958-77. 2010....
Antipsychotic drug prescription for schizophrenia in East Asia: rationale for changeMian Yoon Chong
Chang Guan Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
Psychiatry Clin Neurosci 58:61-7. 2004..The pattern of antipsychotic medication use varied from country to country and is likely to be influenced by the prevailing health-care system, the availability and cost of the drugs...
Reversible delayed onset olanzapine-associated leukopenia and neutropenia in a clozapine-naive patient on concomitant depot antipsychoticSan San Thinn
J Clin Psychopharmacol 27:394-5. 2007
International study on antidepressant prescription pattern at 20 teaching hospitals and major psychiatric institutions in East Asia: Analysis of 1898 cases from China, Japan, Korea, Singapore and TaiwanNaoki Uchida
Fukuoka University College of Medicine, Fukuoka, Japan
Psychiatry Clin Neurosci 61:522-8. 2007..0% of all cases. At the time of the survey, only two SSRI medications were available in Japan. However, five types of SSRI were available and were often prescribed in Korea...
Clozapine-associated pseudomembranous colitis: a case report and review of the literatureKang Sim
J Clin Psychopharmacol 26:89. 2006
Epidemiology of completed suicides in Singapore for 2001 and 2002Marie Loh
Bioinformatics Institute, National University of Singapore
Crisis 28:148-55. 2007..Although the overall rate of elderly suicides had gone down since the 1990s, prevention strategy should focus on the elderly as this rate is still about 3-4 times the national average...
