Publications by authors named "Yang-Whan Jeon"

Somatics refers to body work and movement study that emphasize internal perception and experience. Recently, a new perspective has emerged that views somatics-based techniques as a kind of mindful movement. Somatic techniques as contemplative movement can improve emotional regulation ability through improvement of body awareness or interoception.

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Background: The associations between depression and immunity were investigated by measuring the scores of Hamilton Rating Scale for Depression (HRSD) and peripheral lymphocyte parameters in patients with major depressive disorder (MDD).

Methods: Forty-nine patients with MDD were recruited and their clinical symptoms are evaluated with 17-item HRSD which was factorized using the confirmatory factor analysis (i.e.

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  • The study investigates the relationship between depression and immune system alterations, focusing on how escitalopram affects cellular immunity in patients with major depressive disorder (MDD).
  • Fifty-one patients with MDD were assessed before and after 4 weeks of escitalopram treatment, measuring various hormones and immune cells to categorize them as responders or non-responders.
  • Results showed that responders had increased activity of natural killer cells after treatment, indicating their potential role in alleviating depressive symptoms, while other immune parameters and hormone levels showed no significant differences between the groups.
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Objective: Switching antipsychotics is one useful therapeutic option when the treatment of schizophrenia encounters suboptimal efficacy and intolerability issues. This study aimed to investigate the efficacy and tolerability of cross-tapering switching to ziprasidone from other antipsychotics.

Methods: A total of 67 patients with schizophrenia or schizoaffective disorder were recruited in this 12-week, multicenter, non-comparative, open-label trial.

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Objective: To determine if the maintenance effectiveness and tolerability of aripiprazole demonstrated in a 12-week study were maintained in an extension phase (up to 26 weeks).

Methods: This study was the extension of our switching study from other antipsychotics to aripiprazole in symptomatically stable patients with schizophrenia or schizoaffective disorder. All the patients were randomly assigned to the aripiprazole group or the non-aripiprazole group.

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Objective: This study aims to examine survival of patients with Alzheimer disease (AD) receiving clinical efficacy of cholinesterase inhibitors (ChEIs) and to compare their survival with those of patients with AD who never received ChEIs and cognitively intact old psychiatric outpatients.

Design, Setting, And Participants: The retrospective cohort study used national mortality data provided by the Korean National Statistics Office and electronic database of 15 general hospitals on older patients who began outpatient treatment with psychiatric medications including ChEIs (N = 3,813). The authors controlled for confounding by using multivariate models and propensity scoring methods.

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Objectives: The objective of this study was to evaluate the efficacy and tolerability of blonanserin for the treatment of Korean patients with schizophrenia using a double-blind risperidone-compared design.

Methods: Patients aged 18 to 65 years with schizophrenia were randomly assigned to blonanserin or risperidone treatment for 8 weeks. The efficacy was assessed using the mean change in Positive and Negative Syndrome Scale score total scores from baseline to week 8.

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We recorded event-related potentials (ERPs) in patients with schizophrenia before and after treatment with quetiapine, to investigate this drug's effects on cognitive function. Auditory and visual oddball stimulus discrimination paradigms were presented to patients with schizophrenia (N=20) before and after 3months' treatment with quetiapine. The 2-stimulus auditory oddball paradigm used a standard tone (1000Hz, 75dB, 80%) and a target tone (2000Hz, 75dB, 20%).

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Objective: To investigate the efficacy and safety of quetiapine for depressive symptoms in patients with schizophrenia.

Method: Thirty-nine patients fulfilling DSM-IV-TR diagnostic criteria for schizophrenia and had depressive symptoms were studied in a prospective 6-week open-label design using quetiapine monotherapy. The brief psychiatric rating scale (BPRS), 17-item Hamilton depression rating scale (HAMD-17), Simpson-Angus rating scale, and the Barnes Akathisia rating scale (BARS) were used to assess patients at baseline, week 1, 2, 4, and 6.

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  • The study aimed to evaluate the effectiveness, safety, and tolerability of aripiprazole in patients with schizophrenia or schizoaffective disorder who were switched from traditional D2 receptor antagonists to this D2 receptor partial agonist over a 12-week period.
  • A total of 292 participants were involved, with most receiving aripiprazole, and results showed significant improvement in their symptoms, as indicated by various assessment scales, leading to a higher remission rate.
  • The study found that fewer patients experienced symptom worsening after switching to aripiprazole, and it also had a lower incidence of prolactin-related side effects compared to standard antipsychotics.
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We aimed to use array comparative genomic hybridization (CGH) to identify chromosomal loci that contribute to the pathogenesis of ruptured intracranial aneurysms (IAs) in a Korean population and to confirm the results using real-time polymerase chain reaction (PCR). Twenty-three patients with ruptured IAs were enrolled in this study. Array CGH revealed copy number aberrations in 19 chromosomal regions.

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Human bone marrow-derived mesenchymal stem cells (hMSCs) have been shown to possess multilineage differentiation potential. HOX genes function in transcriptional regulators, and are involved in stem cell differentiation. The aim of the present study was to demonstrate HOX genes that are related to angiogenesis.

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  • The study investigates neurochemical changes in the left dorsolateral prefrontal cortex (DLPFC) of rats subjected to a forced swimming test to simulate depression.
  • The results show that rats with induced depressive symptoms had significantly higher Cho/Cr and Cho/NAA ratios in the DLPFC compared to the control group.
  • This increase in metabolite ratios suggests that there might be enhanced membrane turnover in the DLPFC of depressed rats without any loss of neurons.
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Zolpidem has been known as a very safe and effective hypnotic drug used to treat a variety of patients with insomnia. Even though the same dose of the medicine is administered to each patient, the blood level of zolpidem and the time required to obtain peak concentration are not consistent among different people. We evaluated the relationship between the peak concentrations of zolpidem and chromosomal imbalances using a high-resolution genome-wide array-based comparative genomic hybridization (CGH) in 16 healthy volunteers in order to detect the genetic factors underlying the variations.

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  • CD56 (Natural Killer T) cells have a notable negative relationship with depressive symptom scores in acute and unmedicated individuals suffering from major depressive disorder.
  • A lower count of CD56 cells might indicate more severe depressive symptoms.
  • However, this decrease does not seem to correlate with the severity of anxiety symptoms in cases of major depression.
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Chromosomal abnormalities are implicated as important markers for the pathogenesis in patients with schizophrenia. In this study, with using bacterial artificial chromosome (BAC) array-based comparative genomic hybridization (CGH), we analyzed DNA copy-number changes among 30 patients with schizophrenia. The most frequent changes were partial gain of Xq23 (52%) and loss of 3q13.

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The goal of the present meta-analysis was to identify factors that contribute to P300 event-related brain potential (ERP) differences in patients with schizophrenia compared to unaffected controls in an attempt to characterize the clinically relevant dimensions underlying P300 deficits in patients with schizophrenia. P300 effect size (d) was smaller in amplitude and longer in latency in schizophrenic patients compared to normal controls, with the strongest effects obtained from the auditory oddball. Paranoid subtype demonstrated larger P300 amplitude effect sizes than other disease subtypes, and P300 latency effect size decreased with disease duration.

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