1.Utilization characteristics of health care service for rheumatoid arthritis patients in Korea.
Kyoung Ja CHO ; Seong Ho JANG ; Soo Kon LEE ; Won Su DOH
Yonsei Medical Journal 1998;39(3):247-251
The purpose of this study was to determine the factors which were responsible for delaying early diagnosis and optimal management of rheumatoid arthritis (RA) in Korea. We interviewed 109 outpatients diagnosed as RA being treated by rheumatologists, and we eventually analyzed 98 patients' data. The median length of time from symptom onset to the first visit to a medical doctor, to diagnosis, and visiting a rheumatologist were 8 weeks, 23 weeks, and 42 months respectively. The subspecialist with whom the patients consulted with for the longest time before visiting a rheumatologist were an orthopaedic surgeon for 51 patients, a Chinese herbal doctor for 19 patients, and a pharmacist for 16 patients. For early diagnosis and optimal management of RA in Korea, we believe that it is necessary to reduce the use of unconventional medical services such as Chinese herbal medicine and nonprescribed medication, and to emphasize rheumatologic and rehabilitative care in the early stage.
Adult
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Alternative Medicine/utilization
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Arthritis, Rheumatoid/therapy*
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Arthritis, Rheumatoid/rehabilitation
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Female
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Health Services/utilization*
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Human
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Korea
;
Male
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Middle Age
;
Rheumatology/methods
2.Comparative Study of Serum Brain-Derived Neurotrophic Factor in Acute and Chronic Depression.
Seung Youn LEE ; Jae Won CHUNG ; Shinn Won LIM ; Su Yeon KIM ; Doh Kwan KIM
Korean Journal of Psychopharmacology 2009;20(5):254-261
OBJECTIVE: The aim of this study was to compare the serum brain-derived neurotrophic factor (BDNF) in acute depression with that in chronic depression. METHODS: Eighty subjects who met criteria for major depressive disorder (MDD) were recruited. Patients experiencing at least their fourth episode or an episode of at least 24 months in duration were defined as chronically depressed (n=21). Other patients were classified as acutely depressed (n=59). Antidepressant medications were administered for 6 weeks. Serum BDNF and Hamilton rating scale for depression (HAM-D) scores were measure before and after the administration of medication. RESULTS: We found significant differences in serum BDNF between the two groups. Serum BDNF was significantly higher among those with chronic depression than among those with acute depression both at baseline and after medication. CONCLUSION: This study suggested that serum BDNF might constitute a potential biological marker for chronic depression.
Biomarkers
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Brain-Derived Neurotrophic Factor
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Depression
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Depressive Disorder, Major
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Humans
3.Serum S100B Levels and Major Depressive Disorder: Its Characteristics and Role in Antidepressant Response.
Byong Su JANG ; Hyeran KIM ; Shinn Won LIM ; Ki Won JANG ; Doh Kwan KIM
Psychiatry Investigation 2008;5(3):193-198
OBJECTIVE: S100B is a neurotrophic factor that is involved in neuroplasticity. Neuroplasticity is disrupted in depression; however, treatment with antidepressants can restore neuroplasticity. S100B has previously been used as a biological marker for neuropathology and neuroplasticity; therefore, in this study, we compared serum S100B levels in depressive patients to those of normal controls. In addition, we compared the serum S100B levels of antidepressant responders to those of nonresponders. METHODS: Thirty five normal controls and 59 depressive patients were enrolled in this study. Depressive patients entered a 6 week clinical trial that included treatment with antidepressants. The serum S100B levels and clinical assessments, which included Hamilton depression rating scores, were measured at baseline and after 6 weeks of treatment with antidepressants. The difference in the serum S100B levels between depressive patients and normal controls and between antidepressant responders and nonresponders was then compared. RESULTS: There were no significant differences in the serum S100B levels of normal controls and depressive patients. In addition, 30 of the depressive patients responded to antidepressant treatment while 29 did not. Finally, the responders had significantly higher baseline serum S100B levels than the nonresponders. CONCLUSION: The results of this study suggest that the baseline serum S100B level is associated with the subsequent response to antidepressants. In addition, the high baseline serum S100B level that was observed in depressive patients may enhance neuroplasticity, which results in a favorable therapeutic response to antidepressants.
Antidepressive Agents
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Biomarkers
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Depression
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Depressive Disorder, Major*
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Humans
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Neuronal Plasticity
4.Diaschisis and Motor Recovery in Stroke Patients.
Joong Son CHON ; Se Il CHUN ; Woo Kyoung YOO ; Jong Doo LEE ; Won Su DOH
Journal of the Korean Academy of Rehabilitation Medicine 1998;22(4):822-827
OBJECTIVE: To find out the motor recovery in stroke patients according to the presence of diaschisis. METHOD: Computed tomography (CT) and/or magnetic resonance imaging (MRI) scan and single photon emission computed tomography (SPECT) study were performed on a consecutive series of 98 inpatients from July 1995 to August 1996. Among them 42 stroke patients were included in this study with cerebellar, pontine, and bilateral hemispheric lesions excluded. RESULTS: The types of diaschisis were crossed cerebellar diaschisis (CCD) (36 cases), thalamocortical diaschisis (6 cases), striatocortical diaschisis (5 cases), and capsulocortical diaschisis (1 case). And the functional recovery scale improved from 37.5 points to 53.0 points by the motricity index and from 41.2 points to 68.8 points by the MBI score. Only the motricity index showed a significant inverse correlation with the asymmetry index in CCD. CONCLUSION: Although other types of diaschisis were found, the most frequent type was CCD. The lower the asymmetry score was the lower motricity index. Therefore, CCD could be a prognostic factor for the motor recovery.
Humans
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Inpatients
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Magnetic Resonance Imaging
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Stroke*
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Tomography, Emission-Computed, Single-Photon
5.Effect of Cannabidiol Oil on Weight Loss in Diet-Induced Obese Mice: Validation Study
Sae Saem HAN ; Shinn-Won LIM ; Sook-young WOO ; Su Jin LEE ; Doh Kwan KIM
Journal of Korean Neuropsychiatric Association 2022;61(4):281-290
Objectives:
This study aimed at investigating the pharmacological and physiological effects of cannabidiol (CBD) oil on weight loss in diet-induced obese (DIO) mice.
Methods:
A DIO mice model was constructed with 33 C57BL/6 male mice, aged six weeks, who had been fed a high-fat diet for 13 weeks. Subsequently, 20 mg/kg (n=11) or 60 mg/kg (n=11) of CBD oil or sesame seed oil (n=11) per day was given along with a high-fat diet for four weeks. The body weight of each subject was measured weekly, and venous blood was drawn for biochemistry and enzyme-linked immunoassay before and after the four-week trial period. An oral glucose tolerance test was performed to assess glucose metabolism. At the end of the CBD oil treatment, dual-energy X-ray absorptiometry was used to calculate body fat composition, and the mesenteric adipose tissue was measured as representative of the fat mass of each subject. For statistical analysis, we used the Kruskal-Wallis test, Turkey’s test using ranks and generalized estimating equations.
Results:
After administration of CBD oil (60 mg/kg) for four weeks, the DIO mice showed significant weight loss, compared to the sham control mice (p=0.027). Mice fed with 60 mg/kg of CBD oil also had a significant reduction in fat percentage (p=0.009) and mesenteric fat weight loss (p=0.024), compared to the sham control mice, even with higher food intake (p=0.029). Moreover, mice fed with 60 mg/kg of CBD oil showed a significant improvement in glucose tolerance (p=0.003) and lower plasma leptin levels (p=0.006).
Conclusion
This study shows that orally administered CBD oil induces weight loss in DIO mice. It has been postulated that CBD oil attenuates an over-activated endocannabinoid system, thereby increasing energy expenditure, and improving glucose metabolism and leptin resistance.
6.A Pilot Study on the Effect of Cannabis Extract on Weight Loss in Diet-induced Obese Mice
Yoo Jin JANG ; Shinn-Won LIM ; Sook-Young WOO ; Su Yeon KIM ; Doh Kwan KIM
Journal of Korean Neuropsychiatric Association 2020;59(3):260-267
Methods:
A total of 12 C57BL/6 male mice (Orient Bio), aged 6 weeks, were fed a high-fat diet for 13 weeks to construct a diet-induced obesity model. During the following 5 weeks, diet-induced obese mice were daily administered cannabis extract or sesame seed oil orally along with the high-fat diet. The body weight of each subject was measured weekly. Venous blood was drawn for biochemistry, enzyme-linked immunoassay, and oral glucose tolerance test before and after treatment. Body fat was measured by dual-energy X-ray absorptiometry, and the mesenteric adipose tissue was also measured after sacrifice. We used exact Wilcoxon’s two-sample analyses and generalized estimating equations to test the differences between the cannabis-treated group and control.
Results:
There was significant weight loss (p=0.009) observed in the cannabis-treated mice compared to the control group after 5 weeks of treatment. High-fat diet-induced glucose intolerance in the cannabis-treated group was significantly ameliorated (p=0.032), whereas there were no profound differences between the two groups in terms of other physiological markers, including corticosterone level.
Conclusion
This study shows that orally administered cannabis extract had a pharmacological effect of weight loss in diet-induced obese mice. This weight loss might be attributed to an increase in energy expenditure and regulation of glucose homeostasis.
7.An Association Study between Various Adrenergic Alpha 2 Receptor Polymorphisms and Treatment Response to Mirtazapine in Major Depression.
Jin Woo KIM ; Shinn Won LIM ; Hong CHOI ; Su Yeon KIM ; Woo Jae MYUNG ; Yu Jin LEE ; Ji Hye SONG ; Jae Won CHUNG ; Doh Kwan KIM
Journal of Korean Geriatric Psychiatry 2010;14(1):20-26
OBJECTIVES: Genetic differences may contribute to the inter-individual differences in treatment response to antidepressants among patients suffering from major depression. This study investigated a possible association of treatment response to mirtazapine with various adrenergic alpha 2 receptor polymorphisms in major depressive patients. METHODS: A 6-week naturalistic treatment study with a blinded outcome examined 84 Korean patients with major depression. Treatment response to mirtazapine was defined as > or =50% decrease in HAM-D scores at six weeks. In this study, four genetic polymorphisms were selected ; ADRA2A MspI, ADRA2A DraI, alpha2BDel301-303, and alpha2CDel322-325. RESULTS: The Del/Del genotype of alpha2CDel322-325 exhibited a significant association with response to mirtazapine through multiple logistic regression. ADRA2A DraI, alpha2BDel301-303, and alpha2CDel322-325 did not showed a significant association with response to mirtazapine. CONCLUSION: Based on the finding that alpha2CDel322-325 polymorphism had an association with the mirtazapine response, we postulate that the polymorphism related to the mechanism of the antidepressant effect is important in predicting the response to antidepressants.
Antidepressive Agents
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Depression
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Genotype
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Humans
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Logistic Models
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Mianserin
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Pharmacogenetics
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Polymorphism, Genetic
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Polymorphism, Single Nucleotide
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Receptors, Adrenergic
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Stress, Psychological
8.An Association Study between Various Adrenergic Alpha 2 Receptor Polymorphisms and Treatment Response to Mirtazapine in Major Depression.
Jin Woo KIM ; Shinn Won LIM ; Hong CHOI ; Su Yeon KIM ; Woo Jae MYUNG ; Yu Jin LEE ; Ji Hye SONG ; Jae Won CHUNG ; Doh Kwan KIM
Journal of Korean Geriatric Psychiatry 2010;14(1):20-26
OBJECTIVES: Genetic differences may contribute to the inter-individual differences in treatment response to antidepressants among patients suffering from major depression. This study investigated a possible association of treatment response to mirtazapine with various adrenergic alpha 2 receptor polymorphisms in major depressive patients. METHODS: A 6-week naturalistic treatment study with a blinded outcome examined 84 Korean patients with major depression. Treatment response to mirtazapine was defined as > or =50% decrease in HAM-D scores at six weeks. In this study, four genetic polymorphisms were selected ; ADRA2A MspI, ADRA2A DraI, alpha2BDel301-303, and alpha2CDel322-325. RESULTS: The Del/Del genotype of alpha2CDel322-325 exhibited a significant association with response to mirtazapine through multiple logistic regression. ADRA2A DraI, alpha2BDel301-303, and alpha2CDel322-325 did not showed a significant association with response to mirtazapine. CONCLUSION: Based on the finding that alpha2CDel322-325 polymorphism had an association with the mirtazapine response, we postulate that the polymorphism related to the mechanism of the antidepressant effect is important in predicting the response to antidepressants.
Antidepressive Agents
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Depression
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Genotype
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Humans
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Logistic Models
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Mianserin
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Pharmacogenetics
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Polymorphism, Genetic
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Polymorphism, Single Nucleotide
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Receptors, Adrenergic
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Stress, Psychological
9.An Association Study between Various Monoamine Transporter Gene Polymorphisms and Treatment Response to Mirtazapine in Major Depression.
Hong CHOI ; Shinn Won LIM ; Su Yeon KIM ; Hyeran KIM ; Jae Won CHUNG ; Doh Kwan KIM
Korean Journal of Psychopharmacology 2008;19(5):266-275
OBJECTIVE: Genetic differences may contribute to the inter-individual differences in treatment response to antidepressants among patients suffering from major depression. This study investigated a possible association of various monoamine transporter genetic polymorphisms with treatment response to mirtazapine in major depressive patients in elderly. METHODS: In this study, three genetic polymorphisms were selected: serotonin transporter 5- HTTLPR, serotonin transporter 5-HTT intron 2 VNTR, and norepinephrine transporter NET (G1287A). The patients with major depression diagnosed by DSM-IV were recruited to a 6 week naturalistic mirtazapine treatment study in Samsung Medical Center. Treatment response to mirtazapine was defined as > or =50% decrease in HAMD-17 scores at 6 weeks, and the genotypes in the patients were determined using the polymerase chain reaction. RESULTS: Our results showed that ss allele carriers were included more in responder group (ss allele in responder vs. non responder group; 69.4% vs. 40.0%). In addition, l-allele (sl/ll) carriers were included less in responder group (sl/ll allele in responder vs. non responder group; 30.6% vs. 60.0%). Multiple logistic regression analyses showed the 5-HTTLPR polymorphism as an predictor of the mirtazapine response (5HTTLPR ss allele carrier vs. l-allele (sl/ll) carrier; odds ratio: 3.81; 95% confidence interval [CI], 1.32-11.0; p=0.013). However, 5-HTT intron 2 VNTR l/s (p=0.33 by multiple logistic regression; [OR], 0.53; 95% [CI], 0.15-1.88), and NET (G1287A) G/A (p=0.68 by multiple logistic regression; [OR], 1.25; 95% [CI], 0.44-3.53) showed no statistical significant influences on response rate. CONCLUSION: In conclusion, 5HTTLPR polymorphism may predict treatment response to mirtazapine in major depressive patients in elderly.
Aged
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Alleles
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Antidepressive Agents
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Depression
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Diagnostic and Statistical Manual of Mental Disorders
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Genotype
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Humans
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Introns
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Logistic Models
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Mianserin
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Norepinephrine Plasma Membrane Transport Proteins
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Polymerase Chain Reaction
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Polymorphism, Genetic
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Serotonin Plasma Membrane Transport Proteins
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Stress, Psychological
10.The Factor Structure of the Korean Hamilton Depression Rating Scale(K-HDRS): A Confirmatory Factor Analysis.
Hye Won PARK ; Eun Ho LEE ; Doh Kwan KIM ; Bum Hee YU ; Dong Su LEE ; Ji Hae KIM
Journal of Korean Neuropsychiatric Association 2009;48(1):21-28
OBJECTIVES: The present study was conducted to examine the factor structure of a Korean version of the Hamilton Depression Rating Scale (K-HDRS), and we did so by performing a confirmatory factor analysis (CFA). METHODS: The data from the 17-item K-HDRS data was obtained from 319 South Koreans who met the DSM-IV Criteria of Major Depressive Disorder. We examined the fit of ten competing models. The CFAs were evaluated in their original first-order structures and in their hierarchically related counterparts. RESULTS: The alternative models obtained unsatisfactory fit indices, although the five-factor intercorrelated model (model 5a) demonstrated a relatively good fit to the data. The model 5a also performed better than its hierarchically related counterpart (model 5b). The Modification Indices (MIs) were used to provide a more satisfactory account of the data. The MIs suggested correlations between the unique variances of items (item 1 & 3, item 10 & 15), and these parameters were added to the model 5a. After introducing minor modifications, the 'final' model (5m) yielded an improved model fit. CONCLUSION: This study suggests that the symptoms of depression, as assessed by the K-HDRS, cluster into five factors: anhedonia/retardation, guilt/agitation, bodily symptoms, insomnia and appetite. This study provides evidence for the cross-cultural generalizability of the HDRS, although some refinement of the scale is still required.
Appetite
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Depression
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Depressive Disorder, Major
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Diagnostic and Statistical Manual of Mental Disorders
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Sleep Initiation and Maintenance Disorders