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Lee MS, Park KH, Jung MH, Kim YS. P011: Clinical utility of initial follow-up blood cultures in patients with catheter-related Staphylococcus aureus bacteremia. Antimicrob Resist Infect Control 2013. [PMCID: PMC3688223 DOI: 10.1186/2047-2994-2-s1-p11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lee MS, Park KH, Jung MH, Kim YS. P199: Clinical characteristics and therapeutic outcomes of hematogenous vertebral osteomyelitis caused by methicillin-resistant Staphylococcus aureus. Antimicrob Resist Infect Control 2013. [PMCID: PMC3687984 DOI: 10.1186/2047-2994-2-s1-p199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Lee CC, Chiou WY, Ho HC, Lee MS, Hung SK, Lin HY, Su YC. Prognosticators and the relationship of depression and quality of life in head and neck cancer. Indian J Cancer 2013; 50:14-20. [DOI: 10.4103/0019-509x.112279] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Lee MS, Ahn YM, Chung S, Walton R, Raskin J, Kim MS. The effect of initial duloxetine dosing strategy on nausea in korean patients with major depressive disorder. Psychiatry Investig 2012; 9:391-9. [PMID: 23251205 PMCID: PMC3521117 DOI: 10.4306/pi.2012.9.4.391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 04/20/2012] [Accepted: 07/17/2012] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To assess the relative severity of nausea in patients from Korea with major depressive disorder (MDD) who were treated with duloxetine at low (30 mg) or high (60 mg) doses, with or without food, for the first week of an 8 week treatment. METHODS Adult patients (n=249), with MDD and a 17-item Hamilton Rating Scale for Depression (HAMD(17)) score of ≥15, received open-label once daily duloxetine. At Week 0, patients were randomized to 4 groups: 30 mg with food (n=63), 60 mg with food (n=59), 30 mg without food (n=64), and 60 mg without food (n=63). At Week 1, all patients switched to duloxetine 60 mg for 7 weeks. The primary outcome measure was item 112 (nausea) of the Association for Methodology and Documentation in Psychiatry adverse event scale. Effectiveness was assessed by change in HAMD(17) total score. RESULTS Overall, 94.4% (235/249) of patients completed Week 1 and 55.0% (137/249) of patients completed the study. For Week 1, nausea was significantly less severe for patients who received 30 mg compared with 60 mg duloxetine (p=0.003), regardless of food intake. In all groups, nausea severity was highest at Week 1 and declined throughout the study. HAMD(17) score was reduced in all groups and the most common adverse event reported was nausea (145/249; 58.2%). CONCLUSION To minimize nausea, Korean patients with MDD who require duloxetine treatment could be given 30 mg once daily, regardless of food, for the first week followed by 60 mg once daily for the course of therapy.
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Park SC, Park YC, Lee MS, Chang HS. Plasma brain-derived neurotrophic factor level may contribute to the therapeutic response to eye movement desensitisation and reprocessing in complex post-traumatic stress disorder: a pilot study. Acta Neuropsychiatr 2012; 24:384-6. [PMID: 25287183 DOI: 10.1111/j.1601-5215.2011.00623.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lee MS, Repeta DJ, Nakanishi K, Zagorski MG. Biosynthetic origins and assignments of carbon 13 NMR peaks of brevetoxin B. J Am Chem Soc 2012; 108:7855-6. [PMID: 22283310 DOI: 10.1021/ja00284a072] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lee MS, Ahn SR, Park JI, Chung YC. Development of an early psychosis intervention system in Korea: focus on the continuing care system for first-episode psychosis treatment in Seoul. East Asian Arch Psychiatry 2012; 22:105-109. [PMID: 23019283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Providing intensive psychosocial intervention within the 5-year critical period following the first psychotic episode is important for both symptomatic and functional recovery. Recently, community mental health centres in Korea have begun to shift their main roles from care of those with chronic schizophrenia to early detection of and interventions for those with first-episode psychosis. This pioneering approach was initiated by the Seoul Mental Health Center, which established a community network, formed a clinical consortium with hospitals and clinics, and developed guidelines for early psychosis detection and management and for the Social Treatment for Early Psychosis (STEP) programme. The One-STEP programme, provided during hospitalisation, has been especially efficient in obtaining a high acceptance rate for community services. Several key issues are discussed with regard to the successful establishment of the close partnership between community mental health centres and hospitals / clinics.
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Kook DH, Cho DK, Lee MS, Lee JY, Choi HJ, Kim YS. PYROPROCESS WASTE DISPOSAL SYSTEM DESIGN AND DOSE CALCULATION. NUCLEAR ENGINEERING AND TECHNOLOGY 2012. [DOI: 10.5516/net.06.2011.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kim HJ, Kwak HK, Lee J, Yun YJ, Lee JS, Lee MS, Min SY, Park SK, Kang HS, Maeng YH, Kim SY, Kim SY, Kook YH, Kim YR, Lee KH. Patterns of pncA mutations in drug-resistant Mycobacterium tuberculosis isolated from patients in South Korea. Int J Tuberc Lung Dis 2012; 16:98-103. [PMID: 22236853 DOI: 10.5588/ijtld.10.0739] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pyrazinamide (PZA), one of the most effective anti-tuberculosis drugs, becomes toxic to Mycobacterium tuberculosis when converted to pyrazinoic acid by pyrazinamidase (PZase). PZA resistance is caused mainly by the loss of enzyme activity by mutation. OBJECTIVE To investigate the patterns of pncA mutations in PZA-resistant mycobacteria isolated from South Korean patients. METHODS Mycobacterial isolates with clinically proven drug resistance were cultured to determine susceptibility to anti-tuberculosis agents. pncA mutations were recognised by sequencing and compared with the relevant wild-type DNA sequence. RESULTS Among 108 isolates, 102 were successfully cultured and underwent drug susceptibility testing; all were multidrug-resistant (MDR). pncA mutations were found in 86 cultured isolates (85.1%): 55 (84.6%) in MDR and 31 (86.1%) in extensively drug-resistant isolates. Substitution of a single nucleotide was most common. The most frequent mutations were a deletion that caused a frameshift at nucleotide (nt) 71, a substitution at nt 403 and a substitution at nt 11. Combined, these accounted for ≈ 40% of all mutations. However, 15 samples (14.9%) with defective PZase activity showed no mutation. CONCLUSION pncA mutation in M. tuberculosis is a major mechanism of PZA resistance in MDR isolates from patients in South Korea. The patterns of mutation might be more scattered and diverse. DNA-based diagnosis of PZA resistance has potential for the rapid detection of drug resistance.
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Abel AS, Brace JR, McKinney AM, Harrison AR, Lee MS. Practice patterns and opening pressure measurements using fluoroscopically guided lumbar puncture. AJNR Am J Neuroradiol 2012; 33:823-5. [PMID: 22268077 DOI: 10.3174/ajnr.a2876] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Evidenced-based protocols for fluoroscopically guided LP do not exist. This study analyzed the fluoroscopically guided LP techniques currently used by practicing neuroradiologists. MATERIALS AND METHODS An anonymous Web-based survey was e-mailed to members of ASNR. The results were compiled and tabulated on a spreadsheet. RESULTS A total of 577 neuroradiologists completed the survey. Most neuroradiologists perform fluoroscopically guided LPs with the patient in the prone position by using a 22-ga needle at the L2-L3 or L3-L4 intervertebral space. The OP measurement technique is quite variable. Only a minority of patients are rotated to the left LD position for OP measurement. Most neuroradiologists observe patients for 1-2 hours after the procedure and require strict bed rest. CONCLUSIONS Most neuroradiologists have similar protocols for thecal sac puncture. Normative adult OP data exist only for the LD position, and the accuracy of prone OP measurements is not known. We found that the OP measurement technique is not consistent and a standard protocol is warranted.
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Chen CP, Lin SP, Chen MR, Su YN, Chern SR, Liu YP, Su JW, Lee MS, Wang W. Partial monosomy 3p (3p26.2 --> pter) and partial trisomy 5q (5q34 --> qter) in a girl with coarctation of the aorta, congenital heart defects, short stature, microcephaly and developmental delay. GENETIC COUNSELING (GENEVA, SWITZERLAND) 2012; 23:405-413. [PMID: 23072190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A 1-year-and-3-month-old girl presented with psychomotor retardation, developmental delay, clinodactyly of the thumb, coarctation of the aorta, patent ductus arteriosus, peripheral pulmonary stenosis, atrial septal defect, microcephaly, brachycephaly, a small oval face, almond-shaped eyes, a down-turned mouth, a widened nasal bridge, hypertelorism, epicanthic folds, long philtrum, low-set large ears and but no craniosynostosis. Oligonucleotide-based array comparative genomic hybridization revealed a -4.79-Mb deletion of 3p26.2 --> pter encompassing CHL1 and CNTN4, and a -19.56-Mb duplication of 5q34 --> qter encompassing MSX2, NKX2-5 and NSD1. The karyotype of the girl was 46,XX,der(3)t(3;5)(p26.2;q34) pat. The present case adds distal 5q duplication to the list of chromosome aberrations associated with coarctation of the aorta.
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Park JS, Lim S, Ha J, Lee MS, Oh KS. Lack of Association between Brain-Derived Neurotrophic Factor Gene Val66Met Polymorphisms and Generalized Social Anxiety Disorder in Korean Population. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE 2011; 9:129-33. [PMID: 23430242 PMCID: PMC3569117 DOI: 10.9758/cpn.2011.9.3.129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 11/03/2011] [Accepted: 11/14/2011] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Several lines of evidence suggest that brain-derived neurotrophic factor (BDNF) plays a role in the pathophysiology of anxiety. We analyzed the association of the BDNF gene polymorphism, G196A (val66met), in the coding region of exon XIIIA in chromosome 11p13, and generalized social anxiety disorder (GSAD). METHODS Patients with GSAD (n=73) and age-matched control subjects (n=152) were tested for the BDNF (val66met) polymorphism. A clinical interview and a Mini-International Neuropsychiatric Interview were conducted by trained psychiatrists in order to diagnose GSAD. The symptomatic characteristics of the GSAD patients were assessed with the Hamilton Anxiety Rating Scale, the Beck Anxiety Inventory, the Retrospective Self Report of Inhibition, the Spielberger State-Trait Anxiety Inventory, and the Liebowitz Social Anxiety Scale. RESULTS There were no significant differences in the frequencies of the genotypes (χ(2)=0.961, degree of freedom [df]=2, p=0.619), alleles (χ(2)=0.415, df=1, p=0.519), or allele (methionine) carriers (χ(2)=0.019, df=1, p=0.889) between the patients and controls. In addition, when we compared the severity of social anxiety symptom as determined by the clinical scales with the genotypes of the BDNF gene, we could not find any significant differences between the genotypes or allele carriers. CONCLUSION These results do not support the hypothesis that the BDNF gene might be a candidate gene for susceptibility or severity of GSAD in the Korean population in this study.
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Lee MS, Choi HJ, Choi JW, Kim HJ. APPLICATION OF COLD SPRAY COATING TECHNIQUE TO AN UNDERGROUND DISPOSAL COPPER CANISTER AND ITS CORROSION PROPERTIES. NUCLEAR ENGINEERING AND TECHNOLOGY 2011. [DOI: 10.5516/net.2011.43.6.557] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Park SB, Moon MH, Hong SR, Lee MS, Cho HC, Han BH, Lim KT. Adenoma malignum of the uterine cervix: ultrasonographic findings in 11 patients. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2011; 38:716-721. [PMID: 21919103 DOI: 10.1002/uog.9078] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To evaluate the ultrasonographic features of adenoma malignum, a minimal deviation adenocarcinoma of the uterine cervix. METHODS Eighteen consecutive patients with pathologically confirmed adenoma malignum were enrolled in this study at two institutions. Preoperative ultrasound examination was performed and the results were available in 11 patients. We analyzed retrospectively the gray-scale ultrasound findings for the following morphologic characteristics: cervical enlargement, as well as size, location and ultrasonographic characteristics of lesions. In five patients we also evaluated Doppler features with regard to intralesional vascularity. RESULTS The cervix was enlarged in 73% (8/11) of cases. The mean greatest tumor diameter was 4.2 (range, 2.5-6.8) cm. In five (45%) cases, the cervix was completely infiltrated by the tumor. At gray-scale ultrasound examination, three (27%) tumors were multilocular lesions, four (36%) were multilocular lesions with solid components and four (36%) were solid lesions. In the multilocular lesions with or without a solid component, locules tended to be 1 cm or less in average diameter (86%, 6/7 cases) and there tended to be 11-20 in number (57%, 4/7 cases). In most (57%, 4/7) cases the locular fluid was homogeneously hypoechoic. Most (75%, 3/4) solid lesions manifested heterogeneous echogenicity. The five (100%) tumors examined with Doppler manifested moderate or abundant color content on color or power Doppler. CONCLUSIONS Adenoma malignum can appear sonographically as solid, multilocular and multilocular solid cervical lesions. Awareness of its clinical and ultrasonographic features might improve diagnosis before surgery.
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Jang SH, Park YN, Jae YM, Jun TY, Lee MS, Kim JM, Jeong SH, Kim JB. The Symptom Frequency Characteristics of the Hamilton Depression Rating Scale and Possible Symptom Clusters of Depressive Disorders in Korea: The CRESCEND Study. Psychiatry Investig 2011; 8:312-9. [PMID: 22216040 PMCID: PMC3246138 DOI: 10.4306/pi.2011.8.4.312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 04/25/2011] [Accepted: 06/30/2011] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE This study analyzed the symptom frequencies of 17-item Hamilton Depression Rating Scale (HDRS-17) to understand the characteristics of each item and to propose the possible symptoms clusters. METHODS From psychiatric clinics of 18 Hospitals in Korea, 1,183 patients, diagnosed with major depressive disorder (psychotic or non-psychotic), dysthymia or depressive disorder not otherwise specified. according to DSM-IV criteria, participated in this study from January 2006 to August 2008. The frequencies of each item of HDRS-17 were analyzed according to sex and severity. In addition, we compared this study with a previous study performed in England by Hamilton and with two studies performed in Korea by Kim et al. RESULTS The frequencies of HDRS-17 items varied widely in this study, ranging from 95.8% in work and activities to 37.4% in loss of weight. But, depressed mood, psychic anxiety and work and activities items exhibited constant and higher frequency or rank regardless of study, the severity of depression or sex. Insomnia early, somatic gastrointestinal, genital symptoms and insight showed relatively constant but lower frequency or rank in disregard of studies or the clinical variables. Other symptoms had variable frequencies or ranks according to the variable clinical situations (culture, time, sex, severity of depression). CONCLUSION WE PROPOSE THREE CLUSTERS OF SYMPTOMS IN DEPRESSIVE DISORDERS: core symptoms cluster, an associated symptoms, and a situation-specific symptoms. We can use these possible symptom clusters of depression in simplifying diagnosis of depression, increasing diagnostic specificity in special situation and indexing disease severity.
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Ajao AO, Robinson G, Lee MS, Ranke TD, Venezia RA, Furuno JP, Harris AD, Johnson JK. Comparison of culture media for detection of Acinetobacter baumannii in surveillance cultures of critically-ill patients. Eur J Clin Microbiol Infect Dis 2011; 30:1425-30. [PMID: 21487763 PMCID: PMC3660032 DOI: 10.1007/s10096-011-1237-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 03/20/2011] [Indexed: 10/18/2022]
Abstract
The objective of this study was to evaluate the performance of CHROMagar Acinetobacter when compared to sheep blood agar, MacConkey agar and MacConkey agar with 6 μg/ml of imipenem for the detection of A. baumannii in surveillance cultures of hospitalized patients. We utilized peri-anal swabs and sputum samples from patients admitted to the University of Maryland Medical Center ICUs from December 7 through December 21, 2009. Samples were plated onto four media in the following order: (1) 5% sheep blood agar (SBA), (2) MacConkey agar, (3) MacConkey agar with 6 μg/ml of imipenem, and (4) CHROMagar Acinetobacter (CHROMagar). SBA was the gold standard to which all media was compared. There were 165 samples collected during the study period. SBA and CHROMagar detected 18 of 18 (100%) Acinetobacter and 11 of 11 (100%) MDR-A. baumannii. MacConkey agar detected 16 of 18 (89%) Acinetobacter and 10 of 11 (91%) MDR- A. baumannii while MacConkey agar with 6 μg/ml imipenem detected 9 of 11 (82%) MDR-A. baumannii. CHROMagar did not differentiate MDR- A. baumannii from non-MDR-A. baumannii. CHROMagar may be useful for rapid detection of patients with MDR-A. baumannii if improved upon to better select for MDR-A. baumannii.
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Park JW, Kim HS, Seo DD, Jang JS, Shin WG, Kim KH, Jang MK, Lee JH, Kim HY, Kim DJ, Lee MS, Park CK. Long-term efficacy of entecavir in adefovir-refractory chronic hepatitis B patients with prior lamivudine resistance. J Viral Hepat 2011; 18:e475-81. [PMID: 21914066 DOI: 10.1111/j.1365-2893.2011.01479.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This study aimed to evaluate the long-term efficacy of entecavir (ETV) in adefovir (ADV)-refractory chronic hepatitis B (CHB) patients with prior lamivudine (LMV) resistance. A total of 55 ADV-refractory CHB patients with prior LMV resistance, who received rescue therapy with ETV 1 mg daily for at least 12 months, were consecutively enrolled and analysed. Forty-four patients were men, and their median age was 47 (25-69). Ten patients had liver cirrhosis and 46 patients were positive for hepatitis B e antigen (HBeAg). Median hepatitis B virus DNA levels were 6.6 (4.3-8.0) log(10) copies/mL, and the median duration of ETV therapy was 24 (12-47) months. Cumulative virologic response rates at 6, 12, 24 and 36 months were 18%, 29%, 58% and 75%, respectively. HBeAg loss occurred in 10 (21.7%) of 46 HBeAg-positive patients. In multivariate analysis, only initial virologic response at 3 months remained as an independent predictor for virologic response (RR 3.143; 95% CI 1.387-7.120; P = 0.006). The patients with a virological response at 3 months had not only a significantly higher probability of achieving a virologic response (P < 0.001) but also lower probability of experiencing a virologic breakthrough (P = 0.043) than the patients without an early response. Viral breakthrough was observed in 29 patients during the follow-up period. Cumulative breakthrough rates at 6, 12, 24 and 36 months were 0%, 15%, 45% and 73%, respectively. ETV monotherapy may be considerably efficacious in cases with an initial virological response but its efficacy is attenuated by frequent emergence of ETV resistance in ADV-refractory CHB patients with prior LMV resistance.
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Han X, Lee MS. Implementation of a Particle Swarm Optimization-based Classification Algorithm for Analyzing DNA Chip Data. Genomics Inform 2011. [DOI: 10.5808/gi.2011.9.3.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Jung YE, Seo HJ, Song HR, Woo YS, Yim HW, Sung HM, Lee MS, Kim JM, Jun TY. Factors associated with subjective quality of life in Korean patients with depressive disorders: the CRESCEND study. Qual Life Res 2011; 21:967-74. [DOI: 10.1007/s11136-011-0006-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2011] [Indexed: 11/27/2022]
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Lee HY, Tae WS, Yoon HK, Lee BT, Paik JW, Son KR, Oh YW, Lee MS, Ham BJ. Demonstration of decreased gray matter concentration in the midbrain encompassing the dorsal raphe nucleus and the limbic subcortical regions in major depressive disorder: an optimized voxel-based morphometry study. J Affect Disord 2011; 133:128-36. [PMID: 21546094 DOI: 10.1016/j.jad.2011.04.006] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 04/09/2011] [Accepted: 04/09/2011] [Indexed: 12/18/2022]
Abstract
BACKGROUND Previous neuroimaging studies in patients with major depressive disorder (MDD) have reported changes in several brain areas, such as the medial and dorsolateral orbital cortex, amygdala, hippocampus, and basal ganglia. However, the results of these studies are inconsistent, and relatively few studies have been conducted using voxel-based morphometry (VBM) to detect gray matter concentration (GMC) abnormalities in patients with MDD. METHODS We examined 47 MDD patients and 51 healthy controls to investigate structural abnormalities using a 1.5 T magnetic resonance imaging system, which was normalized to a customized T1 template and segmented with optimized VBM. Analysis of covariance with age and gender as covariates was adopted for the VBM statistics; the level of statistical significance was set at P<0.05 for the corrected false discovery rate. RESULTS Decreased GMC was found in MDD patients in the bilateral amygdalae, hippocampi, fusiform gyri, lingual gyri, insular gyri, middle-superior temporal gyri, thalami, cingulate gyri, the central lobule of the cerebellum, and the midbrain encompassing the dorsal raphe nuclei (DRN). LIMITATIONS Half of our study subjects were taking antidepressants. This may have been a potential confounding factor if any of the medications affected cortical volume. CONCLUSIONS The results suggest that the GMC of several regions associated with emotion regulation was lower in MDD patients. In particular, we found decreased GMC in the DRN. These findings may provide a better understanding of the anatomical properties of the neural mechanisms underlying the etiology of MDD.
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Lee MS, Lyoo CH, Ryu YH, Lim HS, Nam CM, Kim HS, Rinne JO. The effect of age on motor deficits and cerebral glucose metabolism of Parkinson's disease. Acta Neurol Scand 2011; 124:196-201. [PMID: 20880270 DOI: 10.1111/j.1600-0404.2010.01446.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND No systematic study has been made to separate age-related clinical deterioration and dysfunctional brain areas from those associated with Parkinson's disease (PD). METHODS This study included 73 de novo patients with PD and 43 age-matched controls. All subjects underwent [(18)F]-fluorodeoxy glucose (FDG) positron emission tomography studies. The severity of parkinsonian motor deficit was measured using unified PD rating scale (UPDRS) motor scores. Multiple linear regression analysis was used to identify those parkinsonian motor deficits for which severity was correlated with the age of the patients and to locate brain areas in which normalized FDG uptake values were inversely correlated with the age of the subjects. RESULTS Patient age was positively correlated with total UPDRS motor scores and with subscores for bradykinesia and axial motor deficits, but not with subscores for tremor and rigidity. In the control group, an age-related decline in glucose uptake was found only in the cingulate cortex. However, in the patient group, an inverse correlation between age and glucose uptake was observed in the prefrontal, cingulate, orbitofrontal, perisylvian areas, caudate, and thalamus. CONCLUSIONS In PD, widespread age-related decline in cerebral function may exaggerate the deterioration associated with bradykinesia and the axial motor deficits associated with nigral neuronal loss.
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Bae KY, Kim SW, Kim JM, Shin IS, Yoon JS, Jung SW, Lee MS, Yim HW, Jun TY. Antidepressant prescribing patterns in Korea: results from the clinical research center for depression study. Psychiatry Investig 2011; 8:234-44. [PMID: 21994511 PMCID: PMC3182389 DOI: 10.4306/pi.2011.8.3.234] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Revised: 05/27/2011] [Accepted: 05/29/2011] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE This study aimed to investigate antidepressant prescribing patterns, including initial choice, switching and combining, and concomitant use of non-antidepressant agents, for depressive disorders in naturalistic clinical care settings in Korea. METHODS Patients with depressive disorder were recruited from both outpatient and inpatient settings in 18 hospitals from all over Korea. Treatment was performed in naturalistic patterns based on each clinician's decision. Data were collected on the prescription of antidepressants and concomitant agents from baseline to 12-week follow-up. RESULTS Selective serotonin reuptake inhibitors (SSRIs) were the most commonly prescribed initial antidepressant (48.9%), followed by newer dual-action antidepressants (45.8%). When an SSRI was the initial antidepressant, 46.2% of patients whose medication was changed were moved to newer dual-action antidepressants, and 67.4% of combination cases were combined with newer dual-action ones. When a newer dual-action antidepressant was the initial antidepressant, 70.6% of patients whose medication was changed were moved to SSRIs, and other antidepressants including tricyclic antidepressants were most commonly added for combination treatment (50% of combination cases). During the treatment period, 20.6% of antidepressants prescribed were augmented by non-antidepressant agents, and 75.1% were used concomitantly with anxiolytics or hypnotics. The most commonly used concomitant non-antidepressant agent was quetiapine. CONCLUSION The selection of antidepressants and the concomitant use of non-antidepressant agents are becoming increasingly diversified, and the results of this study reflect changes in the prescribing pattern in actual Korean practices.
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Yang SJ, Kim SY, Stewart R, Kim JM, Shin IS, Jung SW, Lee MS, Jeong SH, Jun TY. Gender differences in 12-week antidepressant treatment outcomes for a naturalistic secondary care cohort: the CRESCEND study. Psychiatry Res 2011; 189:82-90. [PMID: 21216471 DOI: 10.1016/j.psychres.2010.12.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2010] [Revised: 12/04/2010] [Accepted: 12/10/2010] [Indexed: 11/20/2022]
Abstract
This study aimed to determine whether men and women with depression differ in socio-demographic, treatment-related characteristics, and in their responses to treatment with antidepressants, as well as to explore differences in treatment outcomes by menopausal status. From a nationwide sample of 18 hospitals in South Korea, 723 depressive patients were recruited. After baseline evaluation, they received naturalistic clinician-determined antidepressant interventions. Assessment scales for evaluating depression (HAMD), anxiety (HAMA), global severity (CGI-s), and functioning (SOFAS) were administered at baseline and re-evaluated at 1, 2, 4, 8, and 12 weeks later. At baseline, women were older, less educated, less likely to be employed, had lower income, were more likely to be married, and had longer illness duration than men. There were no gender differences in the treatment-regime received. After adjustment for baseline status, women were more likely to achieve HAMD remission (OR=1.51), HAMD response (OR=1.64), and HAMA response (OR=1.61). Women also experienced shorter times to HAMD response, HAMA response, and CGI-s remission. Postmenopausal women showed higher HAMA response with newer dual action antidepressants than premenopausal women. Women were found to have better outcomes following antidepressant treatment than men, and postmenopausal women had a better response on anxiety symptoms with newer dual action antidepressants.
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Lee MS, Lee GM. Effect of hypoosmotic pressure on cell growth and antibody production in recombinant Chinese hamster ovary cell culture. Cytotechnology 2011; 36:61-9. [PMID: 19003316 DOI: 10.1023/a:1014032701800] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
To determine the response of recombinant Chinese hamster ovary (rCHO) cells subjected to hypoosmotic pressure, rCHO cells (CS13*-1.0) producing a chimeric antibody were cultivated in the hypoosmolar medium resulting from NaCl subtraction. At hypoosmotic pressure, CS13*-1.0 cells displayed decreased specific growth rate (mu) and increased specific antibody productivity (q (Ab)).When the medium osmolality was decreased from 300 mOsm kg(-1)(physiological osmolality) to 150 mOsm kg(-1), mu was decreased by 68% and q (Ab) was increased by 128%. To understand the mechanism of enhanced q (Ab) resulting from hypoosmotic pressure, cellular responses of cells in the exponential phase of growth were observed at the transcription level. Total cytoplasmic RNA content per cell at 150 mOsm kg(-1) was increased by 140%, compared with that at 300 mOsm kg(-1). On a per mug RNA basis, immunoglobulin (Ig) mRNA levels at 150 mOsm kg(-1) were comparable to those at 300 mOsm kg(-1), indicating that hypoosmotic pressure did not lead to the preferential transcription of Ig mRNAs. Taken together, the data obtained here suggest that the increase in total RNA pool is primarily responsible for the enhanced q (Ab) of CS13*-1.0 cells subjected to hypoosmotic pressure.
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Han X, Lee MS. A Clustering Tool Using Particle Swarm Optimization for DNA Chip Data. Genomics Inform 2011. [DOI: 10.5808/gi.2011.9.2.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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