1.The prognostic impact of psychiatric intervention on alcohol-associated liver disease: The UK Biobank cohort study
Keungmo YANG ; Sunghwan KIM ; Hyun YANG ; Sheng-Min WANG ; Bumseok JEONG ; Hyun Kook LIM ; Si Hyun BAE
Clinical and Molecular Hepatology 2024;30(4):929-942
Background/Aims:
Alcohol-associated liver disease (ALD) is a public health concern. ALD patients often have psychiatric comorbidities, but the effects of psychiatric interventions on ALD are not well-established. This study explores the prognostic impact of psychiatric intervention on ALD within UK Biobank cohort.
Methods:
This population-based study included 2,417 ALD patients from the UK Biobank cohort. Psychiatric intervention was defined by a consultation with psychiatrists during hospitalization or a history of medication related to alcohol use disorder and psychiatric comorbidities. Survival analysis was conducted, incorporating propensity score matching (PSM), to precisely assess the impact of psychiatric intervention.
Results:
Among 2,417 ALD patients, those with F10 (mental disorders due to alcohol) codes had poorer survival outcomes. Psychiatric intervention significantly improved the outcomes of both all-cause and liver-related mortality and reduced the incidence of liver cirrhosis. In subgroup or 2-year landmark analyses, psychiatric intervention consistently showed a survival benefit in ALD patients. In the multivariate analysis, psychiatric intervention was identified as a favorable prognostic factor (hazard ratio, 0.780; p=0.002 after PSM).
Conclusions
This study demonstrates the favorable effect of psychiatric intervention in ALD patients with psychiatric comorbidities. These findings emphasize the importance of integrated management for ALD patients to address both their medical and psychiatric aspects. Therefore, we suggest the potential benefits of early psychiatric interventions in improving survival outcomes in ALD.
2.Effects of Parental Verbal Abuse Experience on the Glutamate Response to Swear Words in the Ventromedial Prefrontal Cortex:A Functional 1 H-magnetic Resonance Spectroscopy Study
Jae Hyun YOO ; Young Woo PARK ; Dohyun KIM ; HyunWook PARK ; Bumseok JEONG
Clinical Psychopharmacology and Neuroscience 2023;21(3):559-571
Objective:
Several lines of evidence indicate verbal abuse (VA) critically impacts the developing brain; however, whether VA results in changes in brain neurochemistry has not been established. Here, we hypothesized that exposure to recurrent parental VA elicits heightened glutamate (Glu) responses during the presentation of swear words, which can be measured with functional magnetic resonance spectroscopy (fMRS).
Methods:
During an emotional Stroop task consisting of blocks of color and swear words, metabolite concentration changes were measured in the ventromedial prefrontal cortex (vmPFC) and the left amygdalohippocampal region (AMHC) of healthy adults (14 F/27 M, 23 ± 4 years old) using fMRS. The dynamic changes in Glu and their associations with the emotional state of the participants were finally evaluated based on 36 datasets from the vmPFC and 30 from the AMHC.
Results:
A repeated-measures analysis of covariance revealed a modest effect of parental VA severity on Glu changes in the vmPFC. The total score on the Verbal Abuse Questionnaire by parents (pVAQ) was associated with the Glu response to swear words (ΔGluSwe ). The interaction term of ΔGluSwe and baseline N-acetyl aspartate (NAA) level in the vmPFC could be used to predict state-trait anxiety level and depressive mood. We could not find any significant associations between ΔGluSwe in the AMHC and either pVAQ or emotional states.
Conclusion
Parental VA exposure in individuals is associated with a greater Glu response towards VA-related stimuli in the vmPFC and that the accompanying low NAA level may be associated with anxiety level or depressive mood.
3.Pathogenicity of clade 2.3.4.4 H5N6 highly pathogenic avian influenza virus in three chicken breeds from South Korea in 2016/2017
Seok Chan PARK ; Byung Min SONG ; Yu Na LEE ; Eun Kyoung LEE ; Gyeong Beom HEO ; Soo Jeong KYE ; Kyung hyun LEE ; You Chan BAE ; Youn Jeong LEE ; Bumseok KIM
Journal of Veterinary Science 2019;20(3):e27-
In 2016, novel H5N6 highly pathogenic avian influenza virus emerged in Korea. During the outbreak, the virus caused the largest culling, especially in brown chicken lines. We determined the pathogenicity and transmissibility of the virus in 2 white chicken lines of the specific pathogen-free chickens, broilers and brown chicken line of Korean native chicken (KNC). A KNC had a longer virus shedding period and longer mean death time than others. Our study showed that this characteristic in the KNC might have contributed to a farm-to-farm transmission of the brown chicken farms.
Agriculture
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Animals
;
Chickens
;
Influenza in Birds
;
Korea
;
Virulence
;
Virus Shedding
4.Vaccination of goats with a combination Salmonella vector expressing four Brucella antigens (BLS, PrpA, Omp19, and SOD) confers protection against Brucella abortus infection
Mwense LEYA ; Won Kyong KIM ; Jeong Sang CHO ; Eun Chae YU ; Young Jee KIM ; Yoonhwan YEO ; Kwang Soo LYOO ; Myeon Sik YANG ; Sang Seop HAN ; John Hwa LEE ; Dongseob TARK ; Jin HUR ; Bumseok KIM
Journal of Veterinary Science 2018;19(5):643-652
Salmonella is an intracellular pathogen with a cellular infection mechanism similar to that of Brucella, making it a suitable choice for use in an anti-Brucella immune boost system. This study explores the efficacy of a Salmonella Typhimurium delivery-based combination vaccine for four heterologous Brucella antigens (Brucella lumazine synthase, proline racemase subunit A, outer-membrane protein 19, and Cu/Zn superoxide dismutase) targeting brucellosis in goats. We inoculated the attenuated Salmonella delivery-based vaccine combination subcutaneously at two different inoculation levels; 5 × 10⁹ colony-forming unit (CFU)/mL (Group B) and 5 × 10¹⁰ CFU/mL (Group C) and challenged the inoculations with virulent Brucella abortus at 6 weeks post-immunization. Serum immunoglobulin G titers against individual antigens in Salmonella immunized goats (Group C) were significantly higher than those of the non-immunized goats (Group A) at 3 and 6 weeks after vaccination. Upon antigenic stimulation, interferon-γ from peripheral blood mononuclear cells was significantly elevated in Groups B and C compared to that in Group A. The immunized goats had a significantly higher level of protection as demonstrated by the low bacterial loads in most tissues from the goats challenged with B. abortus. Relative real-time polymerase chain reaction results revealed that the expression of Brucella antigens was lower in spleen, kidney, and lung of immunized goats than of non-immunized animals. Also, treatment with our combination vaccine ameliorated histopathological lesions induced by the Brucella infection. Overall, the Salmonella Typhimurium delivery-based combination vaccine was effective in delivering immunogenic Brucella proteins, making it potentially useful in protecting livestock from brucellosis.
Animals
;
Bacterial Load
;
Brucella abortus
;
Brucella Vaccine
;
Brucella
;
Brucellosis
;
Goats
;
Immunoglobulin G
;
Kidney
;
Livestock
;
Lung
;
Proline
;
Real-Time Polymerase Chain Reaction
;
Salmonella typhimurium
;
Salmonella
;
Spleen
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Stem Cells
;
Superoxides
;
Vaccination
5.Predicting Suicidal Ideation in College Students with Mental Health Screening Questionnaires.
Psychiatry Investigation 2018;15(11):1037-1045
OBJECTIVE: The present study aimed to identify risk factors for future SI and to predict individual-level risk for future or persistent SI among college students. METHODS: Mental health check-up data collected over 3 years were retrospectively analyzed. Students were categorized as suicidal ideators and non-ideators at baseline. Logistic regression analyses were performed separately for each group, and the predicted probability for each student was calculated. RESULTS: Students likely to exhibit future SI had higher levels of mental health problems, including depression and anxiety, and significant risk factors for future SI included depression, current SI, social phobia, alcohol problems, being female, low self-esteem, and number of close relationships and concerns. Logistic regression models that included current suicide ideators revealed acceptable area under the curve (AUC) values (0.7–0.8) in both the receiver operating characteristic (ROC) and precision recall (PR) curves for predicting future SI. Predictive models with current suicide non-ideators revealed an acceptable level of AUCs only for ROC curves. CONCLUSION: Several factors such as low self-esteem and a focus on short-term rather than long-term outcomes may enhance the prediction of future SI. Because a certain range of SI clearly necessitates clinical attention, further studies differentiating significant from other types of SI are necessary.
Anxiety
;
Area Under Curve
;
Depression
;
Female
;
Humans
;
Logistic Models
;
Mass Screening*
;
Mental Health*
;
Phobic Disorders
;
Retrospective Studies
;
Risk Factors
;
ROC Curve
;
Suicidal Ideation*
;
Suicide
6.Attitudes Formation by Small but Meaningful Personal Information.
Jaejoong KIM ; Sang Won LEE ; Minwook KWAK ; Kyueun LEE ; Bumseok JEONG
Psychiatry Investigation 2017;14(3):298-305
OBJECTIVE: People often evaluate others using fragmentary but meaningful personal information in recent days through social media. It is not clear that whether this process is implicit or explicit and what kind of information is more important in such process.We examined the effects of several meaningful fragmentary information onattitude. METHODS: Thirty three KAIST students were provided four fragmentary information about four virtual people that are meaningful in evaluating people and frequently seen in real life situations, and were asked to imagine that person during four follow-up sessions. Explicit and Implicit attitudes were measured using Likert scale and Implicit Association Test respectively. Also, eye tracking was done to find out the most important information. RESULTS: Strong explicit attitudes, were formed toward both men and women, and weak but significant implicit attitudes, were generated toward men only. Eyetracking results showed that people spent more time reading morality information. CONCLUSION: Our results indicate that explicit attitudes are made by propositional learning, which is the main component for evaluating others with several meaningful fragmentary information, and implicit attitudes are formed by top down process. And as well as those of previous studies, morality information was suggested as the most important factor in developing attitudes.
Female
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Follow-Up Studies
;
Humans
;
Learning
;
Male
;
Morals
;
Social Media
7.Altered Functional Connectivity of the Default Mode Network in Low-Empathy Subjects.
Seung Jun KIM ; Sung Eun KIM ; Hyo Eun KIM ; Kiwan HAN ; Bumseok JEONG ; Jae Jin KIM ; Kee NAMKOONG ; Ji Woong KIM
Yonsei Medical Journal 2017;58(5):1061-1065
Empathy is the ability to identify with or make a vicariously experience of another person's feelings or thoughts based on memory and/or self-referential mental simulation. The default mode network in particular is related to self-referential empathy. In order to elucidate the possible neural mechanisms underlying empathy, we investigated the functional connectivity of the default mode network in subjects from a general population. Resting state functional magnetic resonance imaging data were acquired from 19 low-empathy subjects and 18 medium-empathy subjects. An independent component analysis was used to identify the default mode network, and differences in functional connectivity strength were compared between the two groups. The low-empathy group showed lower functional connectivity of the medial prefrontal cortex and anterior cingulate cortex (Brodmann areas 9 and 32) within the default mode network, compared to the medium-empathy group. The results of the present study suggest that empathy is related to functional connectivity of the medial prefrontal cortex/anterior cingulate cortex within the default mode network. Functional decreases in connectivity among low-empathy subjects may reflect an impairment of self-referential mental simulation.
Empathy
;
Functional Neuroimaging
;
Gyrus Cinguli
;
Magnetic Resonance Imaging
;
Memory
;
Prefrontal Cortex
8.Altered Function of Ventrolateral Prefrontal Cortex in Adolescents with Peer Verbal Abuse History.
Sang Won LEE ; Jeewook CHOI ; Jong Sun LEE ; Jae Hyun YOO ; Ko Woon KIM ; Dongchan KIM ; HyunWook PARK ; Bumseok JEONG
Psychiatry Investigation 2017;14(4):441-451
OBJECTIVE: Previous studies showing the association of exposure to peer (PeVA) and parental verbal abuse in childhood with structural alterations in the young adult brain suggest functional changes in adolescence. In this functional MRI study, we investigated the effects of exposure to PeVA, during elementary and middle school periods, on brain response to emotional words, in high school students. METHODS: An emotional Stroop task consisting of swear, negative, positive, and neutral words was performed during functional MRI scan for 23 subjects who were divided into low- and high exposure groups to PeVA. RESULTS: High-PeVA group had a higher depression score, greater left ventrolateral prefrontal cortex (VLPFC) activity, and higher left VLPFC-left hippocampus connectivity in swear word conditions. The VLPFC activity and left VLPFC-left hippocampus connectivity was negatively related to the severity of anxiety and depressive symptoms, respectively. CONCLUSION: These preliminary findings support the hypothesis that exposure to PeVA, during childhood, is an aversive stimulus associated with meaningful functional change in emotional regulation network, showing hypersensitivity to swear words, at middle adolescence.
Adolescent*
;
Anxiety
;
Brain
;
Depression
;
Hippocampus
;
Humans
;
Hypersensitivity
;
Magnetic Resonance Imaging
;
Parents
;
Prefrontal Cortex*
;
Young Adult
9.Salmonella enterica subsp. enterica infections in eastern great egrets (Ardea alba modesta).
Hansol JEONG ; Geewook SHIN ; Seungwon YI ; Eunju KIM ; Haebeom LEE ; Myeon Sik YANG ; Chae Woong LIM ; Bumseok KIM
Korean Journal of Veterinary Research 2016;56(2):129-131
Five eastern great egrets with a history of ataxia, wry neck, and wet feathers were submitted to the Veterinary Diagnostic Center for pathologic examination. Slightly enlarged livers with diffuse white-grayish nodules were observed. Microscopically, the hepatic and lung parenchyma contained granulomatous lesions consisting of central necrosis. Some hearts showed myofiber necrosis with infiltration of histiocytes and heterophils. Partial 16SrRNA and gyrB gene sequences of all isolates showed high similarities (99-100%) to those of Salmonella (S.) enterica subsp. enterica. Based on pathological and molecular biological results, S. enterica subsp. enterica systemic infections were diagnosed in eastern great egrets of Korea.
Animals
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Ataxia
;
Feathers
;
Heart
;
Histiocytes
;
Korea
;
Liver
;
Lung
;
Neck
;
Necrosis
;
Salmonella enterica*
;
Salmonella*
10.The Effects of Equine-assisted Activities and Therapy on Resting-state Brain Function in Attention-deficit/Hyperactivity Disorder: A Pilot Study.
Jae Hyun YOO ; Yunhye OH ; Byongsu JANG ; Jihye SONG ; Jiwon KIM ; Seonwoo KIM ; Jiyoung LEE ; Hye Yeon SHIN ; Jeong Yi KWON ; Yun Hee KIM ; Bumseok JEONG ; Yoo Sook JOUNG
Clinical Psychopharmacology and Neuroscience 2016;14(4):357-364
OBJECTIVE: Equine-assisted activities and therapy (EAA/T) have been used as adjunct treatment options for physical and psychosocial rehabilitation. However, the therapeutic effects on resting-state brain function have not yet been studied. The aim of this study is to investigate the effects of EAA/T on participants with attention-deficit/hyperactivity disorder (ADHD) by comparing resting-state functional magnetic resonance imaging (rs-fMRI) signals and their clinical correlates. METHODS: Ten participants with ADHD participated in a 12-week EAA/T program without any medication. Two rs-fMRIs were acquired for all participants before and after EAA/T. For estimating therapeutic effect, the regional homogeneity (ReHo) method was applied to capture the changes in the regional synchronization of functional signals. RESULTS: After the EAA/T program, clear symptom improvement was found even without medication. Surface-based pairwise comparisons revealed that ReHo in the right precuneus and right pars orbitalis clusters had significantly diminished after the program. Reduced ReHo in the right precuneus cluster was positively correlated with changes in the scores on DuPaul’s ADHD Rating Scale-Korean version. CONCLUSION: Our results indicate that EAA/T is associated with short-range functional connectivity in the regions related to the default mode network and the behavioral inhibition system, which are associated with symptom improvement.
Attention Deficit Disorder with Hyperactivity
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Brain*
;
Equine-Assisted Therapy
;
Magnetic Resonance Imaging
;
Methods
;
Parietal Lobe
;
Pilot Projects*
;
Psychiatric Rehabilitation
;
Therapeutic Uses

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